阅读说明：本技术 一种基于曲柄摇杆机构的蔬菜封膜装置 (Vegetable film sealing device based on crank rocker mechanism ) 是由 裴广华 于 2020-05-26 设计创作，主要内容包括：本发明公开了一种基于曲柄摇杆机构的蔬菜封膜装置,该蔬菜封膜装置包括外壳、封膜机构、拉膜机构,所述外壳内部从左往右依次设置有封膜机构、拉膜机构,所述拉膜机构利用蜗轮蜗杆机构使保鲜膜展开,所述封膜机构利用曲柄摇杆机构使保鲜膜封装在蔬菜保鲜盒上,封膜机构利用曲柄摇杆机构从四个不同方向对保鲜膜进行切割,本发明科学合理,使用安全方便,封膜机构通过一个电机以及曲柄摇杆机构实现对保鲜膜四个不同方向上的切割,本封膜装置不仅驱动简单,而且维修也非常方便。(The invention discloses a vegetable film sealing device based on a crank and rocker mechanism, which comprises a shell, a film sealing mechanism and a film pulling mechanism, wherein the film sealing mechanism and the film pulling mechanism are sequentially arranged in the shell from left to right, the film pulling mechanism utilizes a worm and gear mechanism to unfold a preservative film, the film sealing mechanism utilizes the crank and rocker mechanism to seal the preservative film on a vegetable preservative box, and the film sealing mechanism utilizes the crank and rocker mechanism to cut the preservative film from four different directions.)

1. The utility model provides a vegetables seal membrane device based on crank rocker mechanism which characterized in that: this vegetables seal membrane device includes shell (1), seals membrane mechanism (2), draws membrane mechanism (3), turn right from a left side and have set gradually and seal membrane mechanism (2), draw membrane mechanism (3) in shell (1), draw membrane mechanism (3) to utilize worm gear mechanism to make the plastic wrap expand, seal membrane mechanism (2) and utilize crank rocker mechanism to make the plastic wrap encapsulation on the vegetables crisper, seal membrane mechanism (2) and utilize crank rocker mechanism to cut the plastic wrap from four not equidirectionals.

2. The vegetable film sealing device based on the crank and rocker mechanism as claimed in claim 1, wherein: the film drawing mechanism is characterized in that a supporting and conveying cylinder (4) is further arranged in the shell (1), the supporting and conveying cylinder (4) is located below the film drawing mechanism (3), a vertical plate (1-1) is arranged in the shell (1), the shell (1) is divided into a power space and a film sealing space by the vertical plate (1-1), two groups of transverse plates (1-2) are sequentially arranged in the power space from top to bottom, and a bearing plate (1-3) is horizontally arranged in the film sealing space; the film sealing mechanism (2) comprises a power assembly (2-2) and a film sealing assembly (2-1), the power assembly (2-2) is arranged in a power space, the power assembly (2-2) is rotationally connected with the film sealing assembly (2-1), and the film sealing assembly (2-1) is arranged above the bearing plate (1-3); the film drawing mechanism (3) comprises a traction assembly (3-1), a rotating shaft (3-2) and a stopper (3-3), wherein the rotating shaft (3-2) is rotatably connected with the traction assembly (3-1), and the rotating shaft (3-2) is rotatably connected with the stopper (3-3).

3. The vegetable film sealing device based on the crank and rocker mechanism as claimed in claim 2, wherein: the power component (2-2) comprises a power machine (2-21), a rocker (2-25) and an extension shell (2-26), the power machine (2-21) is arranged on the lower end face of the inner part of the shell (1), a rotating shaft (2-22) is arranged on the power machine (2-21), a crank (2-24) and an eccentric wheel (2-23) are sequentially arranged on the rotating shaft (2-22) from top to bottom, the eccentric wheel (2-23) is positioned between the two groups of transverse plates (1-2), the extension shell (2-26) is positioned between the two groups of transverse plates (1-2) and is fixed with the vertical plate (1-1), the eccentric wheel (2-23) is rotatably connected with the extension shell (2-26), and the crank (2-24) is rotatably connected with the rocker (2-25), the other end of the rocker (2-25) is rotatably connected with the membrane sealing component (2-1).

4. The vegetable film sealing device based on the crank and rocker mechanism as claimed in claim 3, wherein: the shell body of the extension shell (2-26) is provided with a through groove, the extension shell (2-26) is internally provided with a push plate (2-27) and an air bag (2-28) from left to right in sequence, one side of the push plate (2-27) close to the eccentric wheel (2-23) is symmetrically provided with connecting rods (2-29), the upper end surface and the lower end surface of the eccentric wheel (2-23) are respectively provided with a sliding groove, the two groups of connecting rods (2-29) are L-shaped, the L ends of the two groups of connecting rods (2-29) are positioned in the sliding grooves, the two groups of connecting rods (2-29) are rotatably connected with the eccentric wheel (2-23) through the sliding grooves, the push plate (2-27) is rotationally connected with the eccentric wheel (2-23) through a connecting rod (2-29) and a sliding groove, the extension shell (2-26) is rotationally connected with the eccentric wheel (2-23) through a pushing plate (2-27) and a sliding groove.

5. A vegetable film sealing device based on a crank and rocker mechanism as claimed in claim 2 or 3, wherein: the film sealing assembly (2-1) comprises at least two groups of longitudinal rods (2-13), at least two groups of supporting plates (2-14) and at least four groups of longitudinal plates (2-15), at least two groups of screw rods (2-11) are arranged on the two groups of supporting plates (2-14), two groups of transverse cutting plates (2-12) are symmetrically arranged on the two groups of screw rods (2-11), sliding grooves (2-16) are symmetrically arranged on the upper end surfaces of the two groups of transverse cutting plates (2-12), one group of transverse cutting plates (2-12) close to one side of a vertical plate (1-1) are rotatably connected with rockers (2-25), two groups of four groups of longitudinal plates (2-15) are respectively arranged on the vertical plate (1-1) and the inner wall of a shell (1), a sliding rod (2-17) is arranged between the two groups of longitudinal plates (2-15), lantern rings (2-18) are arranged at two ends of the two groups of longitudinal rods (2-13), the lantern rings (2-18) are sleeved on the sliding rods (2-17), two groups of longitudinal rods (2-13) are symmetrically provided with two groups of rollers, the rollers are located in sliding grooves (2-16), the rollers are rotatably connected with the sliding grooves (2-16), and the two groups of longitudinal rods (2-13) are rotatably connected with the two groups of transverse cutting plates (2-12) through the rollers and the sliding grooves (2-16).

6. The vegetable film sealing device based on the crank and rocker mechanism as claimed in claim 5, wherein: an extension rod (2-19) is arranged on the transverse cutting plate (2-12) close to one side of the vertical plate (1-1), the extension rod (2-19) comprises an extension connecting rod (2-191) and an extension sleeve (2-192) sleeved on the extension connecting rod (2-191), one end of the extension connecting rod (2-191) is rotatably connected with the rocker (2-25), the other end of the extension connecting rod (2-191) is provided with an extension plate, the extension board is positioned inside the extension case (2-192) and is connected with the extension case (2-192) in a sliding way, the extension board is tightly connected with the inner surface of the extension case (2-192), the end of the extension casing (2-192) close to the transverse cutting plate (2-12) is provided with a vent hole, and the extension casing (2-192) is connected with the extension casing (2-26) in a pipeline way.

7. The vegetable film sealing device based on the crank and rocker mechanism as claimed in claim 2, wherein: the traction assembly (3-1) comprises a traction shaft (3-11), traction motors (3-12), gear transmission sets (3-13) and at least four sets of shaft support plates (3-14), wherein every two sets of the four sets of the shaft support plates (3-14) are arranged on a vertical plate (1-1) and the inner wall of a shell (1) respectively, a rotating shaft (3-2) is arranged on the two sets of the shaft support plates (3-14) on the vertical plate (1-1), the traction shafts (3-11) are arranged on the two sets of the shaft support plates (3-14) on the inner wall of the shell (1), the traction motors (3-12) are arranged on the inner wall of the shell (1), the traction motors (3-12) are connected with the traction shafts (3-11), and helical gears are arranged on the traction motors (3-12), one end of the gear transmission set (3-13) is rotationally connected with the helical gear, the other end of the gear transmission set (3-13) is provided with a worm (3-15), and the worm (3-15) is rotationally connected with the rotating shaft (3-2).

8. A vegetable film sealing device based on a crank and rocker mechanism as claimed in claim 2 or 7, wherein: the rotating shaft (3-2) comprises a follow-up shaft (3-21) and a turbine (3-22), a shaft support plate (3-14), a limit plate (3-23), a sleeve (3-24), a driven plate (3-25), a counter plate (3-26) and the shaft support plate (3-14) are sequentially arranged on the follow-up shaft (3-21) from left to right, the sleeve (3-24) is sleeved on the follow-up shaft (3-21), the driven plate (3-25) is located in the sleeve (3-24), the turbine (3-22) is sleeved on the sleeve (3-24) and is rotatably connected with the sleeve (3-24), resistance plates (3-27) are arranged on two sides of the turbine (3-22), and the turbine (3-22) is rotatably connected with a worm (3-15), the limiting plate (3-23) is rotationally connected with the stopper (3-3).

9. The vegetable film sealing device based on the crank and rocker mechanism as claimed in claim 8, wherein: the turbine (3-22) comprises two sets of wheel shells (3-221), gear rings (3-222) and rotating rings (3-223), two sets of wheel shells (3-221) are provided with two sets of ring grooves (3-224) on opposite side end faces, the gear rings (3-222) and the rotating rings (3-223) are respectively located in the two sets of ring grooves (3-224), the diameters of the rotating rings (3-223) are smaller than those of the gear rings (3-222), the rotating rings (3-223) are located in the gear rings (3-222), the gear rings (3-222) and the rotating rings (3-223) are rotationally connected with the wheel shells (3-221), the gear rings (3-222) are rotationally connected with the worms (3-15), and the rotating rings (3-223) are rotationally connected with the sleeves (3-24), the wheel shell (3-221) is provided with a fixed ring (3-225) between the gear ring (3-222) and the rotating ring (3-223).

10. The vegetable film sealing device based on the crank and rocker mechanism as claimed in claim 9, wherein: gear teeth are arranged on the outer surface of the gear ring (3-222), a plurality of groups of push blocks (3-226) are arranged on the inner surface of the gear ring (3-222), the fixing ring (3-225) is fixed with two groups of wheel shells (3-221), a plurality of groups of through grooves are arranged on the fixing ring (3-225), a plurality of groups of baffles (3-227) are arranged on the outer surface of the fixing ring (3-225), the plurality of groups of baffles (3-227) are located on one side of the plurality of groups of through grooves, a plurality of groups of sliding blocks (3-228) are arranged between the gear ring (3-222) and the fixing ring (3-225), the baffles (3-227) and the sliding blocks (3-228) are in one-to-one correspondence, springs are arranged between the baffles (3-227) and the sliding blocks (3-228), and large brans (3-228) are arranged on one side of the sliding blocks (3-228) contacted 229) The end face of one side, close to the fixed ring (3-225), of the rotating ring (3-223) is provided with a plurality of groups of small chaste trees (3-230), a plurality of groups of large chaste trees (3-229) correspond to the plurality of groups of small chaste trees (3-230) one by one, and a plurality of groups of large chaste trees (3-229) penetrate through the through groove and are rotatably connected with the small chaste trees (3-230).

Technical Field

The invention relates to the technical field of vegetable film sealing, in particular to a vegetable film sealing device based on a crank and rocker mechanism.

Background

With the development of science and technology and the improvement of living standard, people not only pay more attention to the quality of commodities such as vegetables and fruits, but also continuously improve the packaging requirements of the commodities, and particularly are particularly loved for packaging of breathable and fresh-keeping preservative films. However, most of the current preservative film packaging for vegetables and fruits depends on manual operation, the average efficiency is low, and the yield of the vegetables and fruits is high, so that the time required for packaging is shortened as much as possible on the premise of ensuring the freshness of the vegetables and fruits as much as possible, thereby causing heavy work of workers, easily causing people to feel fatigue, and being difficult to maintain high efficiency for a long time, and therefore, the research and development work of the automatic preservative film packaging equipment for the vegetables and fruits is very necessary. In the whole packaging process of the vegetable and fruit preservative film, the packaging of the finished vegetables and fruits is an important step. After putting into the tray to the vegetables and fruits that will pack, put its assigned position to plastic wrap packing plant, the device can automatic go up the membrane, then the parcel is accomplished to the tray that the propelling movement contained the fruits and vegetables, cuts the plastic wrap through cutting the membrane part at last, accomplishes and seals membrane and packing to the efficiency of carrying out the plastic wrap packing to agricultural products such as vegetables and fruits has been improved greatly.

The existing film sealing device can only extrude and cut preservative films from 3 directions, when the film sealing device works, 3 mechanisms are controlled to move towards different directions, the film sealing device drives the 3 mechanisms to work respectively, the situation that the driving device is complex due to the fact that a plurality of drives are installed is inevitable, the movement of the 3 directions is not irrelevant, in the cutting process, the movement process needs to be controlled to ensure that a longitudinal cutting component and a transverse cutting component start to move simultaneously, and the longitudinal cutting component and the transverse cutting component stop after reaching a proper position, so that the driving is simplified by improving the device to avoid the complex driving, and the control during the working process is simple as possible or the control is achieved by using machinery.

In order to solve the problems of complex driving and high cost of the film sealing device, the device utilizes a crank rocker mechanism and a roller chute linkage mechanism to design so as to simplify the driving, and the device is also provided with a sleeve to solve the problems in order to prevent the preservative film of the cut part from being broken when being pulled.

Disclosure of Invention

The invention aims to provide a vegetable film sealing device based on a crank and rocker mechanism, which aims to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a vegetables seal membrane device based on crank rocker mechanism, this vegetables seal membrane device include the shell, seal membrane mechanism, draw membrane mechanism, turn right from a left side and have set gradually and seal membrane mechanism, draw membrane mechanism and utilize worm gear mechanism to make the plastic wrap expand, seal membrane mechanism and utilize crank rocker mechanism to make the plastic wrap encapsulation on vegetable fresh-keeping box, seal membrane mechanism and utilize crank rocker mechanism to cut the plastic wrap from four not equidirectional. The film sealing mechanism realizes cutting of the preservative film in four different directions through a motor and a crank rocker mechanism, and the film sealing device is simple in driving and very convenient to maintain.

As a preferred technical scheme, a supporting and feeding cylinder is further arranged in the shell and located below the film pulling mechanism, a vertical plate is arranged in the shell and divides the shell into a power space and a film sealing space, two groups of transverse plates are sequentially arranged in the power space from top to bottom, and a bearing plate is horizontally arranged in the film sealing space; the film sealing mechanism comprises a power assembly and a film sealing assembly, the power assembly is arranged in the power space and is rotationally connected with the film sealing assembly, and the film sealing assembly is arranged above the bearing plate; the film drawing mechanism comprises a traction assembly, a rotating shaft and a stopper, wherein the rotating shaft is rotatably connected with the traction assembly, and the rotating shaft is rotatably connected with the stopper. The support air feed cylinder lifts the preservation box that has vegetables, make preservation box and plastic wrap contact, the riser separates the shell inner space, the diaphragm provides the support for the installation of extending the shell, the loading board provides the support for the installation of sealing the membrane subassembly, power component provides a membrane power for sealing the membrane subassembly, seal the membrane subassembly and cut the plastic wrap from the direction of four differences, it stretches out to pull the subassembly to roll up the plastic wrap and pulls, the pivot provides the support for the installation of plastic wrap book, the rotation of resistance to rotor countershaft restricts.

According to a preferable technical scheme, the power assembly comprises a power machine, a rocker and an extension shell, the power machine is arranged on the lower end face of the inner portion of the shell, a rotating shaft is arranged on the power machine, a crank and an eccentric wheel are sequentially arranged on the rotating shaft from top to bottom, the eccentric wheel is located between two groups of transverse plates, the extension shell is located between the two groups of transverse plates and fixed with the vertical plate, the eccentric wheel is rotatably connected with the extension shell, the crank is rotatably connected with the rocker, and the other end of the rocker is rotatably connected with the film sealing assembly. The power machine provides power for the rotation of the crank and the eccentric wheel, the power of the power machine is transmitted by the rotating shaft, the crank drives the rocker to rotate, the rocker converts the circular motion into linear motion and drives the membrane sealing assembly to move, the eccentric wheel extrudes the air bag in the extension shell, and the extension shell provides an installation space for the air bag.

As preferred technical scheme, it leads to the groove to extend to be provided with on the shell casing, turns right from a left side and has set gradually catch plate, gasbag in extending the shell, one side symmetry that the catch plate is close to the eccentric wheel is provided with the connecting rod, the upper and lower terminal surface of eccentric wheel all is provided with the spout, and is two sets of the connecting rod is the L type, and the L end of two sets of connecting rods is located the spout, and two sets of connecting rods pass through the spout to be connected with the eccentric wheel rotation, the catch plate passes through connecting rod and spout realization and is connected with the eccentric wheel rotation, it passes through catch plate and spout realization. The through groove provides a channel for the eccentric wheel to penetrate through the extension shell, the air bag is extruded when the pushing plate is stressed to move towards the interior of the extension shell, air is filled into the extension rod after the air bag is extruded, and the connecting rod is connected with the pushing plate and the eccentric wheel.

As preferred technical scheme, it includes two sets of vertical poles at least, two sets of backup pads, four group at least vertical boards, and is two sets of to seal the membrane subassembly be provided with two sets of at least lead screws in the backup pad, two sets of the symmetry is provided with two sets of crosscut boards on the lead screw, and is two sets of the equal symmetry of up end of crosscut board is provided with the spout, and a set of crosscut board that is close to riser one side rotates with the rocker to be connected, four groups two liang of vertical boards are a set of and set up respectively on riser and shell inner wall, and are two sets of be provided with the slide bar between the vertical board, two sets of the both ends of vertical pole all are provided with the lantern ring, the lantern ring cover is established on the slide bar, and is two sets of all the symmetry is provided with two sets of gyro wheels on the vertical pole. The vertical plate provides the support for the installation of slide bar, and vertical bar slidable mounting is on the slide bar, and the vertical bar carries out vertical extrusion to the plastic wrap, and the backup pad provides the support for the installation of lead screw, and the lead screw provides the support for the installation of crosscut board, and two sets of crosscut boards mutually support and carry out horizontal extrusion and cutting to the plastic wrap, and the gyro wheel removes and drives the vertical bar and move on the slide bar in the spout.

As preferred technical scheme, be close to riser one side be provided with the extension rod on the crosscut board, the extension rod is established the extension cover shell on the extension connecting rod including extending connecting rod and cover, the one end and the rocker of extending the connecting rod rotate to be connected, and the other end of extending the connecting rod is provided with the extension board, the extension board is located inside and with extension cover shell sliding connection of extension cover shell, extends the board and extends the internal surface zonulae occludens of cover shell, the one end that the extension cover shell is close to the crosscut board is provided with the air vent, extends the cover shell and extends shell pipeline and be connected. Extension rod extension transverse cutting board moving distance on the lead screw simultaneously the extension rod for transverse cutting board's removal provides power, extends the connecting rod and forms complete extension rod with extending the cover shell and mutually support, extends the cover shell inner space and forms the extension space under the partition of extension board, extends the inside gasbag of shell and is transmitted gas to in the extension space after being compressed.

As preferred technical scheme, the subassembly that draws is including drawing axle, traction motor, gear drive group, four group at least axle backup pads, four groups two liang of a set of axle backup pads and setting respectively on riser and shell inner wall, two sets of on the riser be provided with the pivot in the axle backup pad, on the shell inner wall two sets of be provided with the axle that draws in the axle backup pad, traction motor sets up on the shell inner wall, and traction motor and drawing axle hub connection are provided with the helical gear on the traction motor, the one end and the helical gear of gear drive group rotate to be connected, and the other end of gear drive group is provided with the worm, the worm rotates with the pivot to be connected. The traction shaft is used for unfolding and drawing the preservative film roll, the traction motor provides power for the rotation of the traction shaft, the gear transmission set transmits the power of the traction motor to the rotating shaft, the supporting plate provides support for the installation of the rotating shaft and the traction shaft, the helical gear is rotationally connected with the gear transmission set and transmits the power on the traction motor to the gear transmission set, and the worm is rotationally connected with the rotating shaft and transmits the rotational power to the shaft.

As preferred technical scheme, the pivot includes follow-up shaft, turbine, turn right from a left side and set gradually axle backup pad, limiting plate, sleeve, driven plate, reaction plate, axle supporting plate on the follow-up shaft, the sleeve cover is established on the follow-up shaft, the driven plate is located the sleeve, the turbine cover is established on the sleeve and is connected with the sleeve rotation, the both sides of turbine are provided with the resistance board, and the turbine rotates with the worm to be connected, the limiting plate rotates with the stopper and is connected. The shaft support plate provides mounting support for the follower shaft, the follower shaft drives the preservative film roll to rotate, the turbine is rotationally connected with the worm and transmits the rotational power to the sleeve, the position of the sleeve on the follower shaft is limited by the limiting plate, meanwhile, the rotation of the follow-up shaft is limited under certain conditions, the sleeve is driven by the turbine to move leftwards on the follow-up shaft and drive the follow-up shaft to rotate, the driven plate is welded on the follow-up shaft, when the sleeve moves to the leftmost end, the sleeve and the driven plate carry out gear transmission and drive the driven shaft to rotate, the counter plate moves leftwards under the pushing of the sleeve, a plurality of groups of springs are arranged between the counter plate and the shaft support plate, the springs are compressed when the counter plate moves leftwards, the resistance plate limits the position of the turbine, meanwhile, certain rotation resistance is added to the rotation of the turbine, and the stopper realizes the rotation limitation of the follow-up shaft through a limiting plate.

As preferred technical scheme, the turbine includes two sets of wheel shells, ring gear, swivel becket, and is two sets of all be provided with two sets of annulars on the relative side end face of wheel shell, ring gear and swivel becket are located two sets of respectively in the annular, the diameter of swivel becket is less than the diameter of ring gear and the swivel becket is located the ring gear, ring gear and swivel becket all rotate with the wheel shell and are connected, the ring gear rotates with the worm to be connected, the swivel becket rotates with the sleeve to be connected, the wheel shell is provided with solid fixed ring between ring gear and swivel becket. The wheel shell provides the support for the installation of ring gear, swivel ring, and the ring gear rotates with the worm to be connected, and solid fixed ring is integrative with the wheel shell, and the swivel ring rotates with the sleeve to be connected, and the ring gear will rotate power transmission to the set casing on the wheel shell promptly, and the wheel shell drives the swivel ring and rotates.

As preferred technical scheme, the surface of ring gear is provided with the teeth of a cogwheel, and the internal surface of ring gear is provided with a plurality of groups ejector pad, gu fixed ring is fixed with two sets of wheel shells, gu be provided with a plurality of groups on the fixed ring and lead to the groove, and gu fixed ring's surface is provided with a plurality of groups baffle, a plurality of groups the baffle is located one side that a plurality of groups led to the groove, be provided with a plurality of groups slider between ring gear and the fixed ring, baffle and slider one-to-one are provided with the spring between dog and the slider, a plurality of groups the slider is provided with big vitex with one side of solid fixed ring contact, the swivel becket is provided with a plurality of groups of small vitex, a plurality of groups big vitex and a plurality of groups of small vitex one-to-ones, and a plurality. The push block pushes the sliding block, so that a large claw on the sliding block extends out of the through groove and is connected with a small claw, the large claw and the small claw are matched with each other to transmit power to the rotating ring, the spring provides reverse thrust for the sliding block, and the sliding block returns to the original position, so that the large claw retracts into the through groove.

Compared with the prior art, the invention has the beneficial effects that:

1. the film sealing mechanism realizes cutting of the preservative film in four different directions through a motor and a crank rocker mechanism, and the film sealing device is simple in driving and very convenient to maintain. In-process that lifts the preservation box at the lifting cylinder, the preservation box draws the plastic wrap with the plastic wrap contact and under the lifting of lifting cylinder, make the plastic wrap roll up from brand-new plastic wrap and be pulled out, when the plastic wrap is rolled up from brand-new plastic wrap and is pulled out, brand-new plastic wrap is rolled up and is driven the follow-up shaft and rotate, thereby make the follow-up shaft drive the limiting plate and rotate, take place the fracture for preventing that the plastic wrap from being pulled out too tightly at the lifting in-process, the plastic wrap can be pulled out one section, after the plastic wrap is pulled out one end distance, the telescopic link reinserts in the spacing downthehole of limiting plate, make the follow-up shaft stall, can prevent that the plastic wrap from pulling out too much and causing the sealed membrane effect not good.

2. The worm drives the rotation of ring gear, make big dog-ear stretch out and be connected with little dog-ear, make whole turbine rotate, ordinary wheel mechanism drives the inner circle when the outer lane atress rotates, the inner circle is when receiving external force and need reversing, the inner circle can't reverse in the outer lane, this turbine mechanism's setting, when making the outer lane be the ring gear drive inner circle promptly the swivel becket rotate, through the big dog-ear setting that can stretch out and draw back, make the swivel becket can reverse in the ring gear, thereby reach the effect that ordinary wheel mechanism can not reach.

3. Take away when the crisper that encapsulates, lift the cylinder and get back to original position once more after, because lift the cylinder and drag the plastic wrap when lifting the crisper, make the plastic wrap go out one end more, traction motor can roll up unnecessary one end plastic wrap through traction shaft earlier at the during operation, then drag new plastic wrap, because plastic wrap self has viscidity, through telescopic setting, can prevent to roll up unnecessary plastic wrap in-process follow-up shaft and rotate along with traction motor and drag the plastic wrap together, avoid the plastic wrap taut and cause shear part's plastic wrap to stretch out.

4. Drive crank rocker mechanism through single motor and move, the reciprocating motion who drives crosscut board and vertical pole when realizing single motor unidirectional rotation, present membrane device that seals needs three group at least motors to drive simultaneously and seal membrane mechanism and move, and the reciprocating motion who seals membrane mechanism is realized to positive and negative commentaries on classics through the control motor, not only control is complicated, and is with high costs, it only needs a motor to realize reciprocating motion to seal membrane mechanism in this device, not only control is simple, and is with low costs, also convenient the maintenance.

Drawings

FIG. 1 is a schematic view of the overall structure of a vegetable film sealing device based on a crank and rocker mechanism of the invention;

FIG. 2 is a schematic view of the mounting structure of the integral components of the vegetable film sealing device based on the crank and rocker mechanism of the present invention;

FIG. 3 is a top view of a film sealing assembly of the vegetable film sealing device based on a crank and rocker mechanism according to the present invention;

FIG. 4 is a schematic structural diagram of an eccentric wheel of the vegetable film sealing device based on a crank and rocker mechanism of the invention;

FIG. 5 is a schematic structural diagram of a traction assembly of the vegetable film sealing device based on a crank and rocker mechanism of the invention;

FIG. 6 is a schematic view of a rotating shaft structure of a vegetable film sealing device based on a crank and rocker mechanism according to the present invention;

FIG. 7 is a schematic view of a chaste wheel structure of a vegetable film sealing device based on a crank and rocker mechanism of the invention;

FIG. 8 is a schematic view of a turbine natural state structure of a vegetable film sealing device based on a crank and rocker mechanism according to the present invention;

FIG. 9 is a schematic view of a structure of a vegetable film sealing device based on a crank and rocker mechanism after turbo compression;

FIG. 10 is a front view of a wheel housing of a vegetable film sealing device based on a crank and rocker mechanism according to the present invention;

FIG. 11 is a right side sectional view of a wheel housing of the vegetable film sealing device based on a crank and rocker mechanism.

The reference numbers are as follows: 1. a housing; 2. a film sealing mechanism; 3. a film pulling mechanism; 4. a supporting and conveying cylinder; 1-1, vertical plate; 1-2, a transverse plate; 1-3, bearing plates; 2-11, a screw rod; 2-12, a transverse cutting plate; 2-13, a vertical rod; 2-14, a support plate; 2-15, longitudinal plates; 2-16, a chute; 2-17, a slide bar; 2-18, a collar; 2-19, an extension rod; 2-191, an extension link; 2-192, an extension sleeve; 2-21, a power machine; 2-22, a rotating shaft; 2-23, an eccentric wheel; 2-24, a crank; 2-25, a rocker; 2-26, an extension shell; 2-27, a push plate; 2-28, air bag; 2-29, connecting rod; 3-3, a stopper; 3-4, chaste tree roots; 3-11, a traction shaft; 3-12, a traction motor; 3-13, a gear transmission group; 3-14, a shaft support plate; 3-15, worm; 3-21, a follow-up shaft; 3-22, a turbine; 3-23, a limiting plate; 3-24, sleeve; 3-25, a driven plate; 3-26, a reaction plate; 3-27, a resistance plate; 3-221, a wheel shell; 3-222, gear ring; 3-223, a rotating ring; 3-224, ring groove; 3-225, a fixing ring; 3-226, a push block; 3-227, a baffle; 3-228, a slider; 3-229, chaste tree claw; 3-230, small chaste tree claw; 3-31 and a stopper II.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.