A modular automatic net sleeve expanding device

Abstract

The present invention discloses a modular automatic net sleeve expanding device, which includes a frame. A cutting component for receiving a net sleeve and cutting the net sleeve, an opening component for initially expanding the net sleeve, a net supporting component for completely expanding the net sleeve, a feeding component for providing fruits, and a fruit sleeve detaching claw component for discharging the fruits wrapped with the net sleeve are provided on the frame. In the present invention, the motion design of the gripper mechanism device enables only one motor to drive the compound cam mechanism to rotate continuously. Through the curvature characteristics of the compound cam mechanism, the functions of intermittent reciprocating motion and intermittent opening and closing of the gripper mechanism are realized, driving multiple net sleeve supporting devices to work. Therefore, the usage amount of motors is reduced, thereby reducing the failure points of the motors. Reducing the usage amount of motors also has the effect of energy conservation and emission reduction.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and specifically to a modular automatic net sleeve stretching device. Background Art

[0002] During the process of apples leaving cold storage and being transported, covering apples with net sleeves is a necessary measure to protect apples from damage. Currently, apple cold storage enterprises all use manual net sleeve covering. However, with the loss of rural labor, apple cold storages near orchards are facing difficulties in finding workers.

[0003] To solve this problem, it is necessary to automate the process of covering apples with net sleeves. The present invention designs an automated device that can efficiently cover apples with net sleeves. Summary of the Invention

[0004] The purpose of the present invention is to provide a modular automatic net sleeve stretching device to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A modular automatic net sleeve stretching device includes a frame. On the frame, there are provided a cutting component for receiving a net sleeve and cutting the net sleeve, an opening component for initially stretching the net sleeve, a net stretching component for completely stretching the net sleeve, a feeding component for providing fruits, and a fruit sleeve releasing claw component for discharging the fruits wrapped with the net sleeve.

[0007] As a further solution of the present invention: The cutting component includes longitudinally parallel rollers. Each roller surface is provided with a buffer layer for clamping the net sleeve. The rollers are used to drive the net sleeve to feed. On the side close to the discharge of the two rollers, there is an electric heating wire distributed along the arrangement direction of the rollers. The electric heating wire is connected to a cutting cylinder for driving its up and down movement to complete the cutting operation. The cutting component also includes a pressing member for tightly pressing and fixing the net sleeve at the cutting end to prevent its position from deviating. The pressing member includes a second pressing plate and a first pressing plate arranged in parallel. The first pressing plate is connected to a pressing driving member for driving its up and down movement to complete the pressing and positioning operation;

[0008] The opening component includes a friction wheel 7 arranged above the second pressing plate. There is a friction gap for squeezing the net sleeve between the friction wheel 7 and the upper surface of the second pressing plate. On two adjacent sides of the second pressing plate, there is respectively a perpendicular side plate. On the side plate, there is a through hole corresponding to the net stretching component. The friction wheel 7 is connected to a friction driving motor for driving its rotation;

[0009] The lower end of the second pressing plate is connected to a lifting member for driving its up and down movement to cooperate with the net stretching component;

[0010] The net-supporting component includes a fixed barrel. Inside the fixed barrel, there is a gripper mechanism for extending into the preliminarily-opened net sleeve. On one side of the fixed barrel facing the through hole, there is an outlet. At the outlet, there is a second baffle that can rotate unidirectionally outward. At the lower end of the second pressing plate at the end of the gripper mechanism, there is a first baffle for restricting excessive displacement of the fruit. The gripper mechanism includes a number of gripper rods and a gripper driving member for driving the gripper rods to close or open.

[0011] On the other side of the fixed barrel, there is a feed port for facilitating the entry of fruits. The feed port is connected to an inclined second fruit delivery tray. The first fruit delivery tray is connected to the feed end of the second fruit delivery tray. The cross-section of the first fruit delivery tray is in a U-shaped structure, and a cylindrical rotating barrel is mounted on it. The surface of the rotating barrel is provided with notches for facilitating the entry of individual fruits.

[0012] The fruit sleeve detaching and clawing component includes a telescopic pushing member for driving the gripper mechanism to extend into the net sleeve and driving the fruit after the sleeve is installed to be withdrawn.

[0013] On the frame, there is also a fruit loading groove for carrying the fruits after the sleeves are installed.

[0014] As a further scheme of the present invention: The gripper driving member includes a rotating rod. On one side of one end of the rotating rod, there is an installation groove for facilitating the installation of the gripper rods. At the other end, there is a transmission rod. The transmission rod and the rotating rod are arranged at a certain angle. On the side of the rotating rod close to the transmission rod, there is a rotation center column.

[0015] The gripper driving member also includes a chassis and a clamp turntable coaxially arranged with it. On the surface of the chassis, there are a number of insertion holes for facilitating the insertion of the rotation center column. On the surface of the clamp turntable, there are several pairs of guide rods. There is a gap for facilitating the sliding of the transmission rod between each pair of guide rods. On the surface of the chassis, there is a raised ring that matches the inner hole of the clamp turntable. The raised ring and the clamp turntable are rotationally connected through a bearing. The feeding circular hole opened on the chassis corresponds to the discharging end of the second fruit delivery tray, and the chassis and the second fruit delivery tray are fixedly connected through a flange.

[0016] At least one front-back telescopic rod is provided on the outside of the chassis, and the front-back telescopic rod corresponds to the telescopic pushing member.

[0017] On the side of the clamp turntable, there is a closing and opening rotating arm, and the closing and opening rotating arm corresponds to the telescopic pushing member.

[0018] On the side of the chassis, a top plate for restricting the position of the clamp turntable is also connected through bolts.

[0019] On the side of the fixed barrel, there is a front-back sliding groove for facilitating the front-back movement of the front-back telescopic rod. On the side of the fixed barrel, there is also a rectangular groove for facilitating the extension of the closing and opening rotating arm.

[0020] The telescopic pushing member includes a longitudinal rod connected to the front and rear telescopic rods. A reset rod parallel to the axis of the fixed barrel is connected to the side of the longitudinal rod. The reset rod is slidably arranged on the fixed sleeve. The lower side of the fixed sleeve is connected and fixed to the fruit loading groove through a positioning rod. A reset block is provided on the side of the reset rod away from the longitudinal rod. The reset block is connected and fixed to the fixed sleeve through a compression spring. Driven by the compression spring, the gripper mechanism is in a contracted state. The other end of the reset rod abuts against the arc-shaped guiding surface of the cylindrical cam. A power shaft is provided at the central position of the cylindrical cam. One end of the power shaft is connected to the output end of the power motor, and a second cam 25 is provided at the other end. The upper side of the second cam 25 abuts against and contacts a turning plate. One end of the turning plate away from the second cam 25 is rotatably connected to the side of the fixed barrel. A fork is provided on the upper end surface of the turning plate. The U-shaped plug gap at the end of the fork is matched with the opening and closing rotating arm.

[0021] As a further scheme of the present invention: The included angle between the transmission rod and the rotating rod is an obtuse angle.

[0022] As a further scheme of the present invention: The lifting member includes a cross plate. Connecting columns for connecting the bottom of the second pressing plate are provided at the upper end of the cross plate. Both ends of the cross plate are slidably arranged on both sides of the frame. A first cam is provided below the cross plate. The first cam is connected to a first cam motor for driving its up and down movement. By driving the first cam to rotate by the first cam motor, the cross plate will float up and down when the first cam rotates.

[0023] As a further scheme of the present invention: The surface of the friction wheel 7 is provided with a friction layer for increasing the friction with the mesh sleeve.

[0024] As a further scheme of the present invention: The extrusion pushing member is an extrusion cylinder or an extrusion screw mechanism.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] The present invention adopts a mode in which multiple mesh sleeve supporting devices work simultaneously. Considering that it is impossible to equip each mesh sleeve supporting device with a motor, the present invention designs a new connecting device. Only one motor is needed to drive the compound cam mechanism to rotate continuously. Through the curvature characteristics of the compound cam mechanism, the functions of intermittent reciprocating movement and intermittent opening and closing of the gripper mechanism are realized, driving multiple mesh sleeve supporting devices to work. The ingenious cooperation between the cams realizes the characteristics of the overall mechanism operating in a cyclic and orderly manner without jamming and continuous operation;

[0027] When the apple netting of the present invention is carried out, it can completely replace manual labor, and all steps are completed by machinery. Therefore, the work efficiency is improved, the labor cost is reduced, and reliable net support and covering are realized. In order to overcome the difficulties in the process of automatic apple net covering, the present invention innovatively designs a net opening device and a net supporting device to realize reliable and accurate net opening;

[0028] Adopting modular design, the device itself adopts modular design. Therefore, multiple individual modules in the present invention can work simultaneously, that is, more apples can be netted at the same time, the efficiency can be further improved, and it is more convenient for equipment debugging and adapting to different requirements, reducing the motor failure points. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of the present invention.

[0030] Figure 2 It is a schematic structural diagram of the cutting component and the opening component in the present invention.

[0031] Figure 3 It is a schematic structural diagram of the roller and the heating wire in the present invention.

[0032] Figure 4 It is a schematic structural diagram of the first pressing plate and the second pressing plate in the present invention.

[0033] Figure 5 It is a schematic structural diagram of the fixed barrel in the present invention.

[0034] Figure 6 It is a schematic structural diagram of the fixed barrel and the second fruit feeding tray in the present invention.

[0035] Figure 7 It is a schematic structural diagram of the cylindrical cam and the fixed barrel in the present invention.

[0036] Figure 8 It is a schematic structural diagram of the chassis and the fixture turntable in the present invention.

[0037] Figure 9 It is a schematic structural diagram of the gripper mechanism in the present invention.

[0038] Figure 10 It is a schematic structural diagram of the gripper rod in the present invention.

[0039] Figure 11 It is an exploded view of the structure in the present invention.

[0040] Figure 12 It is an overall module structure diagram of the present invention.

[0041] Among them: feeding component 100, claw-removing component 200, net-supporting component 300, opening component 400, cutting component 500;

[0042] Frame 1, first extrusion plate 2, first baffle 3, roller 4, gripper rod 5, fruit loading groove 6, friction wheel 7, fixed barrel 71, second baffle 8, second fruit feeding tray 9, first fruit feeding tray 10, rotating cylinder 11, front and rear sliding grooves 12, front and rear telescopic rods 13, heating wire 14, first cam 15, through hole 16, second extrusion plate 17, fork 21, rectangular groove 22, cylindrical cam 23, turning plate 24, second cam 25, fixed sleeve 26, opening and closing rotating arm 27, top plate 28, fixture turntable 29, chassis 30, guiding rod 301, rotating rod 51, transmission rod 52, rotating center column 53, feeding port 101. Specific embodiments

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] Please refer to Figures 1-12 , in the embodiment of the present invention, a modular automatic net sleeve stretching device includes a frame 1, and a cutting component 500 for receiving a net sleeve and cutting the net sleeve, an opening component 400 for initially stretching the net sleeve, a net stretching component 300 for completely stretching the net sleeve, a feeding component 100 for providing fruits, and a fruit sleeve de-clawing component 200 for discharging the fruits wrapped with the net sleeve are provided on the frame 1.

[0045] The cutting component 500 includes rollers 4 arranged longitudinally in parallel. A buffer layer for clamping the net sleeve is provided on the surface of each roller 4. The roller 4 is used to drive the net sleeve to feed. A heating wire 14 distributed along the arrangement direction of the rollers 4 is provided on one side of the two rollers 4 close to the outlet. The heating wire 14 is connected to a cutting cylinder for driving its up and down movement to complete the cutting operation. The cutting component further includes a pressing member for tightly pressing and fixing the net sleeve at the cutting end to prevent its position from deviating. The pressing member includes a second extrusion plate 17 and a first extrusion plate 2 arranged in parallel. The first extrusion plate 2 is connected to an extrusion driving member for driving its up and down movement to complete the extrusion positioning operation;

[0046] The opening component 400 includes a friction wheel 7 arranged above the second extrusion plate 17. A friction gap for extruding the net sleeve is left between the friction wheel 7 and the upper surface of the second extrusion plate 17. Two adjacent sides of the second extrusion plate 17 are respectively provided with a side plate perpendicular to each other. A through hole 16 corresponding to the net stretching component is provided on the side plate. The friction wheel 7 is connected to a friction driving motor for driving rotation. Driven by the friction force of the friction wheel 7, the cut net sleeve is sent to the through hole 16;

[0047] The lower end of the second extrusion plate 17 is connected to a lifting member for driving it to move up and down to cooperate with the net supporting member;

[0048] The net supporting member 300 includes a fixed barrel 71. Inside the fixed barrel 7, there is a gripper mechanism for extending into the preliminarily opened net sleeve. On one side of the fixed barrel 7 facing the through hole 16, there is an outlet. At the outlet, there is a second baffle 8 that can rotate unidirectionally outward. At the lower end of the second extrusion plate 17 at the end of the gripper mechanism, there is a first baffle 3 for restricting excessive displacement of the fruit. The gripper mechanism includes a plurality of gripper rods and a gripper driving member for driving the gripper rods to close or open;

[0049] On the other side of the fixed barrel 71, there is a feed port 101 for facilitating the entry of fruits. The feed port is connected to an inclined second fruit feeding tray 9. The first fruit feeding tray 10 is connected to the feed end of the second fruit feeding tray 9. The cross-section of the first fruit feeding tray 10 is of a U-shaped structure, and a cylindrical rotating cylinder 11 is mounted on it. The surface of the rotating cylinder 11 is provided with a notch for facilitating the entry of a single fruit;

[0050] The fruit sleeve detaching claw member 200 includes a telescopic pushing member for driving the gripper mechanism to extend into the net sleeve and driving the fruit with the sleeve installed to be withdrawn;

[0051] On the frame 1, there is also a fruit loading groove 6 for carrying the fruits after the sleeves are installed.

[0052] The gripper driving member includes a rotating rod 51. On one side of one end of the rotating rod 51, there is an installation groove for facilitating the installation of the gripper rods. At the other end, there is a transmission rod 52. The transmission rod 52 and the rotating rod 51 are arranged at a certain angle. On the side of the rotating rod 51 close to the transmission rod 52, there is a rotating center column 53;

[0053] The gripper driving member further includes a chassis 30 and a clamp turntable 29 coaxially arranged with it. The surface of the chassis 30 is provided with a plurality of insertion holes for facilitating the insertion of the rotating center column 53. The surface of the clamp turntable 29 is provided with a plurality of pairs of guide rods 301. There is a gap for facilitating the sliding of the transmission rod 52 between each pair of guide rods 301. The surface of the chassis 30 is provided with a raised ring that matches the inner hole of the clamp turntable 29. The raised ring and the clamp turntable 29 are rotationally connected through a bearing. The feeding round hole opened on the chassis 30 corresponds to the discharging end of the second fruit feeding tray 9, and the chassis 30 and the second fruit feeding tray 9 are fixedly connected through a flange;

[0054] At least one front and rear telescopic rod 13 is provided on the outer side of the chassis 30. The front and rear telescopic rod 13 corresponds to the telescopic pushing member;

[0055] On the side of the fixture turntable 29, there is a closing and rotating arm 27, which corresponds to the telescopic pushing member;

[0056] On the side of the chassis 30, a top plate 28 for restricting the position of the fixture turntable 29 is also connected by bolts;

[0057] On the side of the fixed barrel 71, there is a front and rear sliding groove 12 for facilitating the front and rear movement of the front and rear telescopic rods 13, and a rectangular groove 22 for facilitating the extension of the closing and rotating arm 27 is also opened on the side of the fixed barrel 71;

[0058] The telescopic pushing member includes a longitudinal rod connected to the front and rear telescopic rods 13. A reset rod parallel to the axis of the fixed barrel 71 is connected to the side of the longitudinal rod. The reset rod is slidably arranged on the fixed sleeve 26. The lower side of the fixed sleeve 26 is fixedly connected to the fruit loading groove 6 through a positioning rod. A reset block is provided on the side of the reset rod away from the longitudinal rod, and the reset block is fixedly connected to the fixed sleeve 26 through a compression spring. Driven by the compression spring, the gripper mechanism is in a contracted state. The other end of the reset rod abuts against the arc guiding surface of the cylindrical cam 23. A power shaft is provided at the central position of the cylindrical cam 23. One end of the power shaft is connected to the output end of the power motor, and a second cam 25 is provided at the other end. The upper side of the second cam 25 abuts against a turning plate 24. The end of the turning plate away from the second cam 25 is rotatably connected to the side of the fixed barrel 71. A fork 21 is provided on the upper end surface of the turning plate 24, and the U-shaped plug gap at the end of the fork 21 is matched with the closing and rotating arm 27;

[0059] During actual use, driven by the power motor, the guiding surface of the cylindrical cam 23 will drive the reset rod to slide along the fixed sleeve 26, thereby pushing the front and rear telescopic rods 13 to slide along the front and rear sliding grooves 12, so as to realize the extension of the gripper mechanism. Driven by the second cam 25, the turning plate 24 will rotate along the fixed barrel 71, so that the fork 21 drives the closing and rotating arm 27 to rotate, and the closing and rotating arm 27 drives the fixture turntable 29 to rotate. In this way, the two guiding rods 301 will generate a force on the transmission rod 52, so that the rotating rod 51 rotates along the rotating center column 53, so that the gripper rod 5 opens.

[0060] The included angle between the transmission rod 52 and the rotating rod 51 is an obtuse angle.

[0061] The lifting member includes a cross plate. A connecting column connecting the bottom of the second pressing plate 17 is provided at the upper end of the cross plate. The two ends of the cross plate are slidably arranged on both sides of the frame 1. A first cam 15 is provided below the cross plate. The first cam 15 is connected to a first cam motor for driving its up and down movement. By driving the first cam 15 to rotate, the first cam 15 will drive the cross plate to float up and down.

[0062] The surface of the friction wheel 7 is provided with a friction layer that increases the friction force with the mesh sleeve.

[0063] The extrusion and pushing member is an extrusion cylinder or an extrusion screw mechanism.

[0064] The working principle of the present invention is as follows: This mechanism is divided into five parts: a cutting part, a mesh sleeve opening part, a mesh support part, a feeding part, and a fruit sleeve detaching claw part. The process of this mechanism is: cutting the mesh sleeve, opening the mesh sleeve, supporting the mesh sleeve, feeding, and detaching the fruit sleeve claw. The roller drives the mesh sleeve into the No. 1 extrusion plate, the No. 1 extrusion plate squeezes the mesh sleeve downward, the heating wire cuts the mesh sleeve downward, then the No. 1 extrusion plate resets, and the mesh sleeve is driven by the friction wheel 7 and brought to the through hole. And during this process, the mesh sleeve forms an oval opening through friction when it reaches the through hole. After the mesh sleeve opens, the closed gripper mechanism extends into the opening of the mesh sleeve through the movement of the front and rear telescopic shafts. Then the mesh sleeve opening device moves upward through the transmission of the bottom No. 1 cam. At this time, the position of the gripper mechanism is in front of the No. 1 baffle. The gripper mechanism opens through the transmission of the opening and closing transmission shaft. At this time, the mesh sleeve is supported by the gripper mechanism. The apple rolls from the No. 1 fruit feeding tray to the No. 2 fruit feeding tray through the diversion turntable, and finally knocks open the No. 1 baffle by inertia and enters the inside of the opened gripper mechanism, and is blocked in front of the No. 1 baffle and stays in the gripper mechanism. At this time, the mesh sleeve is supported outside the gripper mechanism, and the apple is inside the gripper mechanism. The gripper mechanism retracts backward through the transmission of the front and rear telescopic shafts. The apple and the mesh sleeve are blocked outside because of the No. 1 baffle. When the gripper mechanism completely retracts into the chamber, the apple and the mesh sleeve fall into the fruit loading groove.

[0065] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0066] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A modular automatic mesh expansion device, comprising a frame (1), characterized in that: On the frame (1), there are provided a cutting member (500) for receiving a mesh sleeve and cutting the mesh sleeve, an opening member (400) for initially expanding the mesh sleeve, a net stretching member (300) for fully expanding the mesh sleeve, a feeding member (100) for providing fruits, and a fruit - sleeve detaching claw member (200) for discharging the fruits wrapped with the mesh sleeve; The cutting member (500) includes rollers (4) arranged longitudinally and in parallel. Each roller (4) surface is provided with a buffer layer for clamping the mesh sleeve. The mesh sleeve is driven to feed by the rollers (4). On the side where the mesh sleeve exits near the two rollers (4), there is a heating wire (14) distributed along the arrangement direction of the rollers (4). The heating wire (14) is connected to a cutting cylinder for driving its up - and - down movement to complete the cutting operation. The cutting member also includes a pressing member for tightly pressing and fixing the mesh sleeve at the cutting end to prevent its position from deviating. The pressing member includes a second pressing plate (17) and a first pressing plate (2) arranged in parallel. The first pressing plate (2) is connected to a pressing driving member for driving its up - and - down movement to complete the pressing and positioning operation; The opening member (400) includes a friction wheel (7) arranged above the second pressing plate (17). There is a friction gap for squeezing the mesh sleeve between the friction wheel (7) and the upper surface of the second pressing plate (17). Each of the two adjacent sides of the second pressing plate (17) is provided with a side plate perpendicular to each other. There is a through - hole (16) corresponding to the net stretching member on the side plate. The friction wheel (7) is connected to a friction driving motor for driving its rotation; The lower end of the second pressing plate (17) is connected to a lifting member for driving its up - and - down movement to cooperate with the net stretching member; The net stretching member (300) includes a fixed barrel (71). Inside the fixed barrel (71), there is a gripper mechanism for extending into the initially opened mesh sleeve. On one side of the fixed barrel (71) facing the through - hole (16), there is an outlet. At the outlet, there is a second baffle (8) that can rotate unidirectionally outward. At the lower end of the second pressing plate (17) at the end of the gripper mechanism, there is a first baffle (3) for restricting excessive displacement of the fruit. The gripper mechanism includes a plurality of gripper rods and a gripper driving member for driving the gripper rods to close or open; On the other side of the fixed barrel (71), there is a feeding port for facilitating the entry of fruits. The feeding port is connected to an inclined second fruit - feeding tray (9). The feeding end of the second fruit - feeding tray (9) is connected to a first fruit - feeding tray (10). The cross - section of the first fruit - feeding tray (10) is of a U - shaped structure, and a cylindrical rotating cylinder (11) is mounted on it. The surface of the rotating cylinder (11) is provided with a notch for facilitating the entry of a single fruit; The fruit - sleeve detaching claw member (200) includes a telescopic driving member for driving the gripper mechanism to extend into the mesh sleeve and driving the fruits with the sleeves installed to be withdrawn; On the frame (1), there is also provided a fruit - loading groove (6) for carrying the fruits after the sleeves are installed; The gripper driving member includes a rotating rod (51). An installation groove for facilitating the installation of the gripping rod is provided on the side surface of one end of the rotating rod (51), and a transmission rod (52) is provided at the other end thereof. The transmission rod (52) and the rotating rod (51) are arranged at a certain angle, and a rotating central column (53) is provided on the side surface of the rotating rod (51) close to the transmission rod (52). The gripper driving member further includes a chassis (30) and a fixture turntable (29) coaxially arranged therewith. A plurality of jacks for facilitating the insertion of the rotating central column (53) are provided on the surface of the chassis (30). A plurality of pairs of guide rods (301) are provided on the surface of the fixture turntable (29). A gap for facilitating the sliding of the transmission rod (52) is provided between each pair of guide rods (301). A raised ring matching the inner hole of the fixture turntable (29) is provided on the surface of the chassis (30). The raised ring and the fixture turntable (29) are rotationally connected through a bearing. The feeding round hole provided on the chassis (30) corresponds to the discharging end of the second fruit feeding tray (9), and the chassis (30) and the second fruit feeding tray (9) are fixedly connected through a flange plate. At least one front-back telescopic rod (13) is provided on the outer side of the chassis (30), and the front-back telescopic rod (13) corresponds to the telescopic driving member. A closing and opening rotating arm (27) is provided on the side surface of the fixture turntable (29), and the closing and opening rotating arm (27) corresponds to the telescopic driving member. A top plate (28) for restricting the position of the fixture turntable (29) is further connected to the side surface of the chassis (30) through bolts. A front-back sliding groove (12) for facilitating the front-back movement of the front-back telescopic rod (13) is provided on the side surface of the fixed barrel (71), and a rectangular groove (22) for facilitating the extension of the closing and opening rotating arm (27) is further provided on the side surface of the fixed barrel (71). The telescopic driving member includes a longitudinal rod connected to the front-back telescopic rod (13). A reset rod arranged parallel to the axis of the fixed barrel (71) is connected to the side surface of the longitudinal rod. The reset rod is slidably arranged on the fixed sleeve (26). The lower side of the fixed sleeve (26) is fixedly connected to the fruit loading groove (6) through a positioning rod. A reset block is provided on the side of the reset rod away from the longitudinal rod. The reset block and the fixed sleeve (26) are fixedly connected through a compression spring. Driven by the compression spring, the gripper mechanism is in a contracted state. The other end of the reset rod abuts against the arc guiding surface of the cylindrical cam (23). A power shaft is provided at the central position of the cylindrical cam (23). One end of the power shaft is connected to the output end of the power motor, and a second cam (25) is provided at the other end thereof. A turning plate (24) is pressed against the upper side of the second cam (25). One end of the turning plate (24) away from the second cam (25) is rotationally connected to the side surface of the fixed barrel (71). A fork (21) is provided on the upper end surface of the turning plate (24). The U-shaped plug gap at the end of the fork (21) is matched with the closing and opening rotating arm (27).

2. The modular automatic mesh expansion device according to claim 1, characterized in that: The angle between the transmission rod (52) and the rotating rod (51) is an obtuse angle.

3. The modular automatic mesh expansion device according to claim 1, characterized in that: The lifting member includes a cross plate, and a connecting column connecting the bottom of the second pressing plate (17) is provided at the upper end of the cross plate. Both ends of the cross plate are slidably arranged on both sides of the frame (1), and a first cam (15) is provided below the cross plate. The first cam (15) is connected to a first cam motor for driving it to move up and down.

4. The modular automatic net sleeve expanding device according to claim 1, characterized in that, The surface of the friction wheel 7 is provided with a friction layer for increasing the friction force with the mesh sleeve.

5. The modular automatic net sleeve expanding device according to claim 1, characterized in that, The extrusion and pushing member is an extrusion cylinder or an extrusion screw mechanism.

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