CN221163538U - Fruit and vegetable packaging device - Google Patents

Abstract

The utility model discloses a fruit and vegetable packaging device, which comprises a net sleeving device and a net supporting device which are arranged on a frame; the net sleeving device is used for sleeving the lower part of the net sleeve on the net supporting device; the middle part of the net supporting device is provided with an opening. According to the utility model, the net sleeve is sleeved on the net supporting device, so that the upper part of the net sleeve is in a necking state, then, a packaged object is placed in the net sleeve, and the inside and outside overturning of the net sleeve and the wrapping of the object are realized by virtue of the friction force between the packaged object and the net sleeve when the packaged object falls down, so that the packaging efficiency is greatly improved, the complexity of a mechanism is reduced, and meanwhile, the net sleeve is overturned only once and is realized by virtue of the friction force, so that the number of times of stressing of the net sleeve is reduced, the stressing is more uniform, the net sleeve is not easy to damage, and the packaging quality is ensured.

Description

Fruit and vegetable packaging device

Technical Field

The present utility model relates to a packaging device.

Background

Fruit and vegetable products such as apples need to be packaged by a net cover. The traditional packaging mode is completed manually, the operation efficiency is low, the packaging quality cannot be guaranteed, and the manual price is high.

In response to the above problems, the prior art has proposed a number of web packaging machines. For example, the Chinese invention application No. CN113479381A discloses a net cover packaging system and method, which adopts a twice net turning mode to realize the packaging of the net cover, and has the advantages of high efficiency, guaranteed quality, wide application range and the like compared with manual packaging.

However, the above packaging method has the following defects: the net cover can be wrapped on the packaged object only by twice turning, the operating mechanism is relatively complex, the efficiency is low, and the net cover is easy to damage in the twice turning process, so that the packaging quality is affected.

Disclosure of utility model

The utility model provides a fruit and vegetable packaging device, which aims to: further improving the packaging efficiency and avoiding the problem of damage to the net cover caused by repeated turning.

The technical scheme of the utility model is as follows:

A fruit and vegetable packaging device comprises a net sleeving device and a net supporting device which are arranged on a frame; the net sleeving device is used for sleeving the lower part of the net sleeve on the net supporting device; the middle part of the net supporting device is provided with an opening.

As a further improvement of the fruit and vegetable packaging device: the openings of the net supporting device are scalable.

As a further improvement of the fruit and vegetable packaging device: the net supporting device is arranged on the workbench and comprises a plurality of hook rods uniformly distributed on the circumference;

The hook rod is arranged on the workbench through a sliding block, and the sliding direction of the sliding block is the radial direction of the circumference uniform distribution; the net supporting device further comprises a net supporting driving mechanism for driving the hook rod to move along the radial direction.

As a further improvement of the fruit and vegetable packaging device: the upper end of the hook rod is provided with a first roller.

As a further improvement of the fruit and vegetable packaging device: the inner end of the hook rod is obliquely arranged, and the upper part of the inner end is positioned at the inner side of the lower part.

As a further improvement of the fruit and vegetable packaging device: an elastic mechanism is further arranged between the hook rod and the sliding block and used for pushing the hook rod to move towards the circle center direction uniformly distributed on the circumference.

As a further improvement of the fruit and vegetable packaging device: the net supporting driving mechanism comprises a first cylinder, a moving plate and a second roller; the cylinder body of the first cylinder is fixedly arranged relative to the workbench, the extending end of the first cylinder is connected with the moving plate, and a sliding groove is formed in the moving plate; the second roller is arranged on the sliding block and matched with the sliding groove.

As a further improvement of the fruit and vegetable packaging device: the net sleeving device comprises a net expanding part and a lifting part;

The expanding net part is arranged on the lifting part, and the lifting part is used for driving the expanding net part to move up and down relative to the workbench.

As a further improvement of the fruit and vegetable packaging device: the net expanding part is a net expanding mechanism; the net expanding mechanism comprises a plurality of vertical upright rods and a net expanding driving mechanism for driving each upright rod to move along the radial direction; the net supporting device is provided with gaps which are arranged along the radial direction and are in one-to-one correspondence with the vertical rods; the net expanding driving mechanism comprises a telescopic cylinder, a lifting block, a first connecting rod, a second connecting rod and a third connecting rod;

The cylinder body of the telescopic cylinder is positioned on a lifting table of the lifting mechanism; the lifting block is connected with the extending end of the telescopic cylinder;

The upright posts are uniformly distributed on more than three circumferences; each upright rod corresponds to a group of first connecting rod, second connecting rod and third connecting rod respectively;

The second connecting rod and the third connecting rod are equal in length and parallel, the upper end of the second connecting rod and the upper end of the third connecting rod are both rotationally connected with the lower end of the vertical rod, and the lower end of the second connecting rod and the lower end of the third connecting rod are both rotationally connected with the lifting platform;

One end of the first connecting rod is rotationally connected with the lifting block, and the other end of the first connecting rod is rotationally connected with the second connecting rod.

As a further improvement of the fruit and vegetable packaging device: the net sleeving device further comprises an air needle module which is arranged on the frame through a lifting device;

the two air needle modules are arranged in a group and are opposite to each other, and the air needle modules in the same group are closed and separated under the drive of the moving mechanism.

Compared with the prior art, the utility model has the following beneficial effects:

1. According to the utility model, the net sleeve is sleeved on the net supporting device, so that the upper part of the net sleeve is in a necking state, then a packaged object is placed in the net sleeve, and the inside and outside overturning of the net sleeve and the wrapping of the object are realized by virtue of the friction force between the packaged object and the net sleeve when the packaged object falls down, so that the packaging efficiency is greatly improved, and the complexity of a mechanism is reduced. Meanwhile, the net sleeve is turned over only once, and the turning over is realized by friction force instead of mechanical acting force of a certain point, so that the number of times of stressing of the net sleeve is reduced, the stressing is more uniform, the net sleeve is not easy to damage, and the packaging quality is ensured.

2. The opening of the net supporting device is provided with a rolling mechanism (a first roller at the upper end of the hook rod), so that the friction force between the net sleeve and the packaged object is far greater than the resistance of the net supporting device to the net sleeve, and the net sleeve can be ensured to be overturned correctly.

3. When the packaged object passes through the opening of the net supporting device, the hook rod can adaptively shrink under the action of the elastic mechanism, the net sleeve is always pressed on the surface of the packaged object, and the friction force is ensured and meanwhile the net sleeve can adapt to objects with different sizes.

4. The vertical rod of the rod expanding mechanism penetrates through the gap of the net supporting device, and the rod expanding mechanism and the net supporting device are matched with each other, so that net expanding and net sleeving operations can be completed at the same station, and the rod expanding mechanism has the advantages of being small in moving range, high in action efficiency and compact in structure.

Drawings

FIG. 1 is a schematic view of the overall structure of a packaging device;

FIG. 2 is a schematic view of the structure of the air needle module and the cutting device portion, wherein four groups of air needle modules (two groups) share 1 group of cutting devices;

FIG. 3 is a schematic structural view of a lifting mechanism and a net expanding mechanism;

FIG. 4 is a schematic diagram of the structure of the net expanding mechanism;

FIG. 5 is a schematic view of a first construction of the net support device;

FIG. 6 is a schematic view of a second construction of the net support device;

FIG. 7 is a schematic view of the web being lowered to a cutting position after being clamped by the air pin module;

FIG. 8 is a schematic view of the web being secured by the securing mechanism and cut completed;

FIG. 9 is a schematic illustration of the mesh belt between air needle modules pulled apart to an open state;

FIG. 10 is a schematic view of the net supporting device on the workbench when the net supporting device is respectively sleeved with a net cover;

FIG. 11 is a schematic view of the net cage as it is being expanded by the net cage apparatus;

Fig. 12 is a schematic view of a robot arm throwing a packaged object into a net.

In the figure:

1. A frame; 2. a net supporting device; 3. a manipulator; 4. a roller; 5. an air needle module; 6. a cutting device; 7. a lifting driving mechanism; 8. a lifting table; 9. a vertical rod; 10. a telescopic cylinder; 11. a lifting block; 12. a first link; 13. a second link; 14. a third link; 15. a work table; 16. a hook rod; 17. a slide block; 18. a second roller; 19. a moving plate; 20. a mesh belt; 21. a fixing mechanism; 22. a net cover in an open state; 23. the upper part of the net cover.

Detailed Description

The technical scheme of the utility model is described in detail below with reference to the accompanying drawings:

Embodiment one

Referring to fig. 1, a fruit and vegetable packaging device comprises a frame 1, and further comprises a manipulator 3, a net sleeving device and a net supporting device 2 which are arranged on the frame 1.

The manipulator 3 is used for holding and throwing in packaged objects, and the packaged objects are generally spherical fruits and vegetables. In this embodiment, the manipulator 3 adopts a rectangular coordinate system structure, and can move horizontally, longitudinally and vertically, and the tail end of the manipulator 3 preferably adopts a suction cup.

The net sleeving device is used for sleeving the lower part of the net sleeve on the net supporting device 2. The specific structure of the net covering device is not limited in this patent, and it is any structure that can enlarge the opening of the net covering and cover it on the upper end of the net supporting device 2, such as a plurality of pneumatic fingers, air needles or hooks.

In this embodiment, the net sleeving device comprises an air needle module 5 installed on the frame 1 through a lifting device, and further comprises a cutting device 6, a net expanding mechanism and a lifting mechanism.

The above-described devices are not necessarily all of them, and may be adjusted according to the state of the material of the net and the required net-covering operation range.

The middle part of the net supporting device 2 is provided with an opening. The net supporting device 2 is used for supporting the lower half part of the net cover.

In this embodiment, as shown in fig. 1 to 12, the air needle module 5, the net expanding mechanism and the net supporting device 2 are all four groups, and the manipulator 3 has four independent end suction cups, which are in one-to-one correspondence with each other. The four groups of air needle modules 5 (two groups are one group) share the same group of cutting devices 6. The four groups of net expanding mechanisms share the same lifting mechanism. The four sets of net supporting devices 2 are arranged on the same workbench 15. In the manipulator 3, four suction cups share the same set of longitudinal moving mechanism and lifting mechanism. Simultaneously, be equipped with two stations around on the frame 1: in the first station, the net cover belt 20 is opened and cut into sections, and the sections of net cover are flared and then sleeved on the net supporting device 2; in the second station, the packaged objects are put on the net supporting device 2, and packaging is completed. The table 15 is switched between the two stations by the drive of the translation drive mechanism.

The specific structure of the packaging system is as follows:

As shown in fig. 1, a frame 1 is provided with four sets of rolls 4, and the rolls 4 are wrapped with a web of webbing, referred to herein as a web of webbing 20.

As shown in fig. 2, two groups of air needle modules 5 are arranged oppositely, and the air needle modules 5 in the same group are closed and separated under the drive of a moving mechanism (a motor-gear rack, or a motor-driving belt, or a second air cylinder, etc.). The side of the air needle module 5 is provided with an inclined hole, a thin needle can extend out of the inclined hole, and when the thin needle extends out under the action of compressed air, the thin needle can be inserted into the net sleeve, so that the net sleeve moves along with the air needle module 5.

Further, the air needle module 5 is mounted on a lifting device, and can perform lifting operation.

The cutting device 6 is located above the air needle module 5 and is used for cutting the mesh belt 20. In this embodiment, the mesh belt 20 is cut by using an electric heating wire, and the electric heating wire moves back and forth under the action of a third cylinder.

As shown in fig. 3 and 4, the expanding mechanism is mounted on a lifting mechanism for driving the expanding mechanism to move up and down relative to the table 15.

The lifting mechanism comprises a lifting driving mechanism 7 (cylinder) and a lifting table 8.

Further, the net expanding mechanism comprises a plurality of vertical uprights 9 and a net expanding driving mechanism for driving each upright 9 to move along the radial direction.

In this embodiment, the expanding driving mechanism includes a telescopic cylinder 10, a lifting block 11, a first link 12, a second link 13, and a third link 14. The cylinder body of the telescopic cylinder 10 is positioned on the lifting table 8 of the lifting mechanism. The lifting block 11 is connected with the extending end of the telescopic cylinder 10. The upright posts 9 are four in number and uniformly distributed circumferentially. Each upright 9 corresponds to a group of first 12, second 13 and third 14 connecting rods, respectively. The second connecting rod 13 and the third connecting rod 14 are equal in length and parallel, the upper end of the second connecting rod 13 and the upper end of the third connecting rod 14 are both rotationally connected with the lower end of the vertical rod 9, and the lower end of the second connecting rod 13 and the lower end of the third connecting rod 14 are both rotationally connected with the lifting platform 8 to form a parallelogram mechanism, so that the vertical rod 9 is always in a vertical state. One end of the first connecting rod 12 is rotatably connected with the lifting block 11, and the other end is rotatably connected with the second connecting rod 13. When the telescopic cylinder 10 stretches, the lifting block 11 moves up and down, the lifting block drives the second connecting rod 13 to rotate through the first connecting rod 12, and the parallelogram mechanism formed by the second connecting rod 13 and the third connecting rod 14 drives the upright rods 9 to translate along the circular arc track, so that the synchronous folding/unfolding of the four upright rods 9 is realized.

The expanding net driving mechanism can also be in other structural forms, such as 4 cylinders uniformly distributed on the circumference.

The net expanding mechanism can also integrally adopt other structural forms, such as 4 cylinders with uniformly distributed circumferences, pneumatic fingers are respectively arranged at the inner ends of the net expanding mechanism, and net openings are expanded by pulling the pneumatic fingers to the periphery.

Further, the opening of the net supporting device 2 can be scaled, so that the size of the central opening is changed, the lower half part of the net sleeve is further enlarged, and the packaged object can pass smoothly.

As shown in fig. 5 and 6, the net supporting device 2 in this embodiment has the following structure: comprising four groups of hook rods 16 uniformly distributed on the circumference. The hook rod 16 is arranged on the workbench 15 through a sliding block 17, and the sliding direction of the sliding block 17 is the radial direction uniformly distributed on the circumference. The work table 15 is provided with through holes corresponding to the opening positions of the net supporting device 2.

Preferably, a first roller is mounted on the upper end of the hook rod 16.

Preferably, the inner end of the hook rod 16 is inclined, and the upper part of the inner end is positioned at the inner side of the lower part.

The net supporting device 2 further comprises a net supporting driving mechanism for driving the hook rod 16 to move along the radial direction.

In order to save space and reduce the cost of components, the net supporting driving mechanism in this embodiment adopts a scheme that one cylinder drives a plurality of hook rods 16 simultaneously: the net supporting driving mechanism comprises a first air cylinder, a moving plate 19 and a second roller 18. The cylinder body of the first cylinder is fixedly arranged relative to the workbench 15, the extending end of the first cylinder is connected with the moving plate 19, and a sliding groove is formed in the moving plate 19. The second roller 18 is mounted on the slider 17, and the second roller 18 is matched with the chute. The moving plate 19 may be disposed on the left or right side of the hook rod 16 (fig. 5) or on the front or rear side (fig. 6). The sliding groove is preferably a straight groove, and can also be in the form of an arc groove and the like. Two second rollers 18 can be connected to the same moving plate 19, or more than three second rollers 18 can be connected simultaneously, so that more hook rods 16 can be driven to act simultaneously through one cylinder.

Further, the net supporting device 2 is provided with gaps which are arranged along the radial direction and are in one-to-one correspondence with the vertical rods 9. In this embodiment, each group of hooking bars 16 is made up of two bar elements, which are mounted on the same slide 17, with a gap between them for the passage of the uprights 9.

Further, an elastic mechanism is further arranged between the hook rod 16 and the sliding block 17, and the elastic mechanism is used for pushing the hook rod 16 to move towards the circle center direction uniformly distributed on the circumference. The elastic mechanism can refer to the structure of a return spring part in the Chinese utility model patent pull rod mechanism with the authorized bulletin number of CN 217836157U; the connection mode between the hook rod 16 and the sliding block 17 can be set to be rotary connection, and a torsion spring is arranged at the rotary connection position, namely the elastic mechanism. The action process of the packaging device is as follows:

step one, sleeving the lower part of the net sleeve on the net supporting device 2.

The method specifically comprises the following steps:

Step 1-1, the separated air needle module 5 is lifted to a position close to the fixing mechanism 21, then the mesh belt 20 is clamped, the air needle is extended, then the fixing mechanism 21 is loosened, and the air needle module 5 drives the tail end of the mesh belt 20 to move downwards to a cutting position, as shown in fig. 7.

In step 1-2, as shown in fig. 8, the fixing mechanism 21 is operated to clamp the portion of the webbing 20 located above the cutting position, prevent the webbing 20 from rebounding after cutting, and then the cutting device 6 is operated to cut a section of the webbing 20 by a predetermined length.

In step 1-3, as shown in fig. 9, the air needle module 5 is separated, and the cut net cover is separated into a cylinder shape under the driving of the air needle. Then the lifting mechanism acts to enable the upright rod 9 of the net expanding mechanism to be inserted into the net sleeve, then the upright rod 9 starts to separate to the periphery, and simultaneously the air needle is retracted and the air needle module 5 is withdrawn. At this time, the net cover is fixed on the net expanding mechanism and expanded into a square shape, and the size of the opening at the lower end of the net cover is larger than that of the opening of the net supporting device 2.

Step 1-4, as shown in fig. 10, the lifting mechanism falls down, the lower half part of the net sleeve is sleeved on the corresponding net supporting device 2, the upper end of the upright rod 9 moves below the workbench 15, and then the upright rod 9 of the net expanding mechanism moves towards the center and folds.

Step two, the net supporting device 2 supports the lower part of the net sleeve so that the diameter of the upper part 23 of the net sleeve is smaller than that of the lower end.

Specifically, the translation driving mechanism (cylinder, or motor-rack-and-pinion structure, or motor-belt structure) connected to the table 15 acts to move the table 15 together with the net supporting device 2 to the second station. Simultaneously, the first cylinder acts, and the sliding blocks 17 are driven to move through the moving plate 19, so that the hook rods 16 move outwards to prop up the lower part of the net sleeve, and the opening of the net supporting device 2 is enlarged. At this time, the upper part 23 of the net cover is in a contracted state with respect to the lower end, as shown in fig. 11.

Step three, as shown in fig. 12, the manipulator 3 drops the packaged object into the net cover from the top of the net cover downwards, the packaged object pushes the upper part 23 of the net cover into the opening of the net supporting device 2, the net cover of the turnover part is located between the first roller and the packaged object at the moment, then the net cover continuously falls along with the packaged object under the action of friction force, and the outer layer of the net cover gradually turns to the inner side along the first roller and wraps the surface of the packaged object. In this process, the elastic mechanism on the net supporting device 2 will always drive the hook rod 16 to move inwards, so that the net cover always contacts with the packaged object.

Finally, the packaged objects fall onto a conveyor and are conveyed to other positions.

Second embodiment

The present embodiment differs from the first embodiment in that: the net sleeving device only comprises an air needle module and a lifting device, and does not comprise a net expanding mechanism and a lifting mechanism.

At this time, the net expanding part is an air needle module, and the lifting part is a lifting device.

Accordingly, the operation modes of steps 1-3 to 1-4 in the present embodiment are changed to:

Step 1-3, separating the air needle modules, and separating the cut net cover into cylinders under the drive of the air needle.

Step 1-4, the lifting device directly falls down, the cylindrical net sleeve is sleeved on the corresponding net supporting device, then the air needle is withdrawn, the air needle module is separated, and the lifting device is reset.

Or step 1 in the first embodiment is realized in the following manner instead:

The separated air needle module is lifted to a position close to the fixing mechanism, then the net sleeve belt is clamped, the air needle is stretched out, then the fixing mechanism is loosened, the air needle module is separated, the tail end portion of the net sleeve belt is pulled to be cylindrical, then the lifting device drives the air needle module and the tail end of the net sleeve belt to move downwards, the lower end of the net sleeve is directly sleeved on the net supporting device, then the fixing mechanism acts to fix the net sleeve belt above, and then the cutting device cuts the net sleeve.

Embodiment III

The present embodiment differs from the first embodiment in that: the net sleeving device only comprises a net expanding mechanism and a lifting mechanism, and does not comprise an air needle module and a lifting device.

At this time, the net expanding part is a net expanding mechanism, and the lifting part is a lifting mechanism.

Correspondingly, in steps 1-2 to 1-3, the mesh belts are not separated by air needles any more, but are separated by other special devices (such as pneumatic fingers, etc.), or the material put into is the mesh which is already cylindrical.

Claims (10)

1. A fruit vegetables packing plant, its characterized in that: comprises a net sleeving device and a net supporting device (2) which are arranged on a frame (1); the net sleeving device is used for sleeving the lower part of the net sleeve on the net supporting device (2); the middle part of the net supporting device (2) is provided with an opening for the packaged objects to pass through.

2. The fruit and vegetable packaging device of claim 1, wherein: the opening of the net supporting device (2) is scalable.

3. The fruit and vegetable packaging device of claim 2, wherein: the net supporting device (2) is arranged on the workbench (15) and comprises a plurality of hook rods (16) uniformly distributed on the circumference;

The hook rod (16) is arranged on the workbench (15) through a sliding block (17), and the sliding direction of the sliding block (17) is the radial direction of the circumference uniform distribution; the net supporting device (2) further comprises a net supporting driving mechanism for driving the hook rod (16) to move along the radial direction.

4. A fruit and vegetable packaging device as claimed in claim 3, wherein: the upper end of the hook rod (16) is provided with a first roller.

5. A fruit and vegetable packaging device as claimed in claim 3, wherein: the inner end of the hook rod (16) is obliquely arranged, and the upper part of the inner end is positioned at the inner side of the lower part.

6. A fruit and vegetable packaging device as claimed in claim 3, wherein: an elastic mechanism is further arranged between the hook rod (16) and the sliding block (17), and the elastic mechanism is used for pushing the hook rod (16) to move towards the circle center direction uniformly distributed on the circumference.

7. A fruit and vegetable packaging device as claimed in claim 3, wherein: the net supporting driving mechanism comprises a first air cylinder, a moving plate (19) and a second roller (18); the cylinder body of the first cylinder is fixedly arranged relative to the workbench (15), the extending end of the first cylinder is connected with the moving plate (19), and a sliding groove is formed in the moving plate (19); the second roller (18) is arranged on the sliding block (17), and the second roller (18) is matched with the sliding groove.

8. A fruit and vegetable packaging device as claimed in claim 3, wherein: the net sleeving device comprises a net expanding part and a lifting part;

The expanding part is arranged on the lifting part, and the lifting part is used for driving the expanding part to move up and down relative to the workbench (15).

9. The fruit and vegetable packaging device of claim 8, wherein: the net expanding part is a net expanding mechanism; the net expanding mechanism comprises a plurality of vertical upright rods (9) and a net expanding driving mechanism for driving each upright rod (9) to move along the radial direction; the net supporting device (2) is provided with gaps which are arranged along the radial direction and are in one-to-one correspondence with the vertical rods (9); the net expanding driving mechanism comprises a telescopic cylinder (10), a lifting block (11), a first connecting rod (12), a second connecting rod (13) and a third connecting rod (14);

The cylinder body of the telescopic cylinder (10) is positioned on a lifting table (8) of the lifting mechanism; the lifting block (11) is connected with the extending end of the telescopic cylinder (10);

The upright posts (9) are uniformly distributed on more than three circumferences; each upright (9) corresponds to a group of first connecting rods (12), second connecting rods (13) and third connecting rods (14) respectively;

The second connecting rod (13) and the third connecting rod (14) are equal in length and parallel, the upper end of the second connecting rod (13) and the upper end of the third connecting rod (14) are both rotationally connected with the lower end of the vertical rod (9), and the lower end of the second connecting rod (13) and the lower end of the third connecting rod (14) are both rotationally connected with the lifting table (8);

One end of the first connecting rod (12) is rotationally connected with the lifting block (11), and the other end of the first connecting rod is rotationally connected with the second connecting rod (13).

10. The fruit and vegetable packaging device of claim 8 or 9, wherein: the net sleeving device further comprises an air needle module (5) which is arranged on the frame (1) through a lifting device;

The two air needle modules (5) are arranged in a group and are opposite to each other, and the air needle modules (5) in the same group are folded and separated under the drive of the moving mechanism.