Film self-sealing type packaging mechanism

Abstract

The utility model relates to a film self-sealing type packaging mechanism which is characterized in that the film self-sealing type packaging mechanism comprises a collecting box, a first plastic roll film and a second plastic roll film, the first plastic roll film and the second plastic roll film are installed on the two side walls of the collecting box, and a packaging film formed by connecting the free ends of the first plastic roll film and the second plastic roll film is contained in the groove bottom of the collecting box. A first film sealing rod and a second film sealing rod which can be relatively close to or far away from each other are mounted between the two side walls in the collecting box, the first film sealing rod and the second film sealing rod are located on the outer side of a packaging film at a box opening of the collecting box, and an electric heating wire is arranged on the first film sealing rod or the second film sealing rod; and when the first film sealing rod and the second film sealing rod are close to each other, the packaging film located at the box opening of the collecting box is closed and hot-melted. The film self-sealing type packaging mechanism can collect and package picked tobacco leaves.

Description

Technical field:

[0002] The utility model relates to a film self-sealing packaging mechanism. Background technology:

[0004] Tobacco leaves are the raw material for making cigarettes. In the past, tobacco leaves from tobacco plants were picked manually, which not only required a lot of work, but was also difficult to collect and pack.

[0005] The Chinese patent "A webbing folding and packaging mechanism" with publication number CN111605835A was retrieved, which includes a machine body, a feeding assembly installed on the machine body, and a folding assembly installed in the machine body; the folding assembly includes a toggle unit, two folding units, a first driving unit and a rotating rod, the toggle unit includes a plurality of toggle swing arms rotatably mounted on the rotating rod, the two folding units are symmetrically arranged at both ends of the rotating rod, the folding unit includes two folding swing arms, one end of the toggle swing arm forms a swing arm driving end, and the other end is equipped with a toggle rod, the first driving unit includes a first driving assembly, the first driving assembly is suitable for pushing the swing arm driving end to move, so as to drive the toggle rod to swing around the rotating rod, the webbing folding and packaging mechanism can avoid creases during webbing packaging; but it cannot uniformly collect and pack the picked and fallen tobacco leaves. Summary of the invention:

[0007] In view of the above-mentioned problems, the purpose of the utility model is to provide a thin film self-sealing packaging mechanism, which is reasonably designed and is conducive to collecting and packaging the picked tobacco leaves.

[0008] The utility model is implemented by the following scheme:

[0009] The utility model provides a thin film self-sealing packaging mechanism, which is characterized by comprising a collection box and a first plastic film roll and a second plastic film roll installed on two side walls of the collection box, the packaging film formed by the free ends of the first plastic film roll and the second plastic film roll being joined and contained in the groove bottom of the collection box, a first film sealing rod and a second film sealing rod which can be relatively close to or far away from each other are installed between the two side walls in the collection box, and the first film sealing rod and the second film sealing rod are located on the outside of the packaging film at the box opening of the collection box, and an electric heating wire is provided on the first film sealing rod or the second film sealing rod to close and heat-melt the packaging film at the box opening of the collection box when the first film sealing rod and the second film sealing rod are close to each other.

[0010] Preferably, U-shaped mounting seats are fixedly mounted on both side walls of the collection box, and both ends of the first plastic roll film and the second plastic roll film are rotatably hinged on the U-shaped mounting seats.

[0011] Preferably, rockers are installed at the inner ends of the first film-sealing rod and the second film-sealing rod, and the ends of the rockers are rotatably hinged on the collection box. The hinged ends of the rockers are provided with gears, and the gears on the two rockers are meshed with each other. An electric push rod is fixedly installed on the collection box, and the free end of the telescopic rod of the electric push rod is connected to the middle part of the first rocker arm. Driven by the telescopic rod of the electric push rod, the first rocker arm rotates around its hinged end, and then drives the rotation of the other rocker arm through the meshing of the gears, thereby realizing the relative approach or distance between the first film-sealing rod and the second film-sealing rod.

[0012] Preferably, the first film sealing rod is respectively installed with a plurality of springs along its length direction, a pressure rod is installed at the free end of the spring, a pressure strip is installed on the pressure rod, and a bakelite strip and an electric heating wire installed on the bakelite strip are provided on the second film sealing rod.

[0013] Preferably, a flap mechanism is provided on the side of the above-mentioned collecting box, and the flap mechanism includes a flange sleeve and a flap motor mounted in the flange sleeve, the rotating shaft of the flap motor extends out of the flange sleeve and is connected to the flap shaft, and the flap shaft is connected to a flap base plate located on the side of the collecting box through a flap shaft support seat, and bristles are arranged on the edge of the flap base plate away from the collecting box. Under the action of the flap motor, the flap base plate is driven to rotate to swing the tobacco leaves fallen thereon into the collecting box.

[0014] Preferably, two flap shaft support seats are installed on the above-mentioned flap shaft in parallel and at intervals, the flap base plate is fixedly installed on the flap shaft support seat, the flap motor is fixedly installed on one end face of the flange sleeve, and an end cover is fixedly installed on the other end face of the flange sleeve, a bearing and a flap shaft sleeve inserted in the bearing are installed on the end cover, the flap shaft is arranged in the flap shaft sleeve, and the output end rotating shaft of the flap motor is coaxially connected in series with the flap shaft.

[0015] The working principle of the thin film self-sealing packaging mechanism of the utility model is that the conveyor belt of the current process conveys tobacco leaves to the receiving box, and the packaging film is pressed and spread on the bottom of the groove of the collecting box, and the packaging film wraps the tobacco leaves in the receiving box. When the first film sealing rod and the second film sealing rod move relatively and close to each other, the packaging film located at the box opening of the collecting box is closed and heat-melted, thereby completing the packaging of the tobacco leaves in the receiving box. Thereafter, the packaged tobacco leaves are taken out manually, while the packaging film located in the collecting box is still closed and heat-melted to maintain a continuous state (that is, the free ends of the first plastic roll film and the second plastic roll film are still joined to form a continuous packaging film required for subsequent packaging work). The thin film self-sealing packaging mechanism of the utility model can collect and pack the tobacco leaves after picking. Description of the drawings:

[0017] The utility model is further described below in conjunction with the accompanying drawings;

[0018] Figure 1It is a three-dimensional picture of tobacco leaf picking equipment;

[0019] Figure 2 This is a three-dimensional installation diagram of the collection box and the packaging mechanism of the utility model from one perspective;

[0020] Figure 3 This is a stereoscopic installation diagram of the collection box and the packaging mechanism of the utility model from another perspective;

[0021] Figure 4 It is a three-dimensional diagram of the packaging mechanism of the utility model;

[0022] Figure 5 This is a three-dimensional installation diagram of the collection box and the flap mechanism of the utility model;

[0023] Figure 6 It is a three-dimensional diagram of the flap mechanism;

[0024] Figure 7 It is a partial exploded view of the flap mechanism;

[0025] Figure 8 This is a working principle diagram of the packaging mechanism of the utility model (the state of the packaging film in the collection box receiving tobacco leaves);

[0026] Fig. 9 This is a working principle diagram of the packaging mechanism of the utility model (the packaging film in the collection box is closed and hot-melted);

[0027] Fig.10 This is a working principle diagram of the packaging mechanism of the utility model (the packaging film in the collection box becomes a continuous packaging film after being hot-melted). Specific implementation method:

[0029] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0030] The tobacco leaf picking device comprises a gantry frame 1 and wheels 2 installed at the lower parts of both sides of the gantry frame. A tobacco leaf cutting mechanism 3, a conveyor belt 4, a collecting box 5 and a packaging mechanism 6 are installed on the gantry frame 1.

[0031] The tobacco leaf cutting mechanism 3 is provided with a cutting knife for cutting fresh tobacco leaves. The tobacco leaf cutting mechanism 3 is a prior art, such as the Chinese patent “Scissor-type tobacco leaf layering picking mechanism” (publication number CN116235697A).

[0032] The conveyor belt 4 (i.e., a conveying belt, which is a prior art and will not be described here) is installed on the outside of the tobacco leaf cutting mechanism. The rotation direction of the conveyor belt is opposite to the travel direction of the wheels on the gantry frame. Through the rotation direction of the conveyor belt, the cut tobacco leaves can be transported to the collection box on the rear side.

[0033] The collecting box 5 is installed at the output end of the conveyor belt 4, and is used to receive the tobacco leaves conveyed by the conveyor belt. In one embodiment, the conveyor belt 4 is provided with the collecting box 5 only at one end, and in another embodiment, the conveyor belt 4 is provided with the collecting box 5 at both ends, so that the cut tobacco leaves can be collected regardless of whether the wheels on the gantry-shaped frame are moving forward or backward.

[0034] The packing mechanism is installed in the collection box and is used to pack tobacco leaves. The packing mechanism can be an existing packing mechanism, such as the Chinese patent "A webbing folding packing mechanism" publication number CN111605835A, etc. The specific packing mechanism of this application is described in detail as follows.

[0035] The packaging mechanism 6 comprises a first plastic film roll A1 and a second plastic film roll A2 mounted on two side walls of the collecting box 5 , and the first plastic film roll A1 and the second plastic film roll A2 are rolled plastic films.

[0036] The packaging film A3 (i.e., a continuous plastic film) formed by the free ends of the first plastic roll film A1 and the second plastic roll film A2 is contained in the bottom of the groove of the collecting box 5, and the first film sealing rod A4 and the second film sealing rod A5 which can be relatively close to or far away are installed between the two side walls in the collecting box 5, and the first film sealing rod and the second film sealing rod are located on the outside of the packaging film at the box mouth of the collecting box, and the first film sealing rod A4 or the second film sealing rod A5 is provided with an electric heating wire A13 to close and heat-melt the packaging film located at the box mouth of the collecting box when the first film sealing rod and the second film sealing rod are close to each other. The packaging film is closed and close, and is fused under the action of the electric heating wire A13 on the first film sealing rod A4 or the second film sealing rod A5, and the free ends of the first plastic roll film A1 and the second plastic roll film A2 are still joined to form a continuous packaging film required for subsequent packaging work.

[0037] U-shaped mounting seats A6 are fixedly mounted on both side walls of the collection box. The U-shaped mounting seats A6 can be made of bent stainless steel sheets. Both ends of the first plastic film roll and the second plastic film roll are rotatably hinged on the U-shaped mounting seats A6.

[0038] During specific operation, the first plastic roll film and the second plastic roll film are respectively wound on the U-shaped mounting seat A6. When the conveyor belt 4 transports the tobacco leaves to the receiving box, the packaging film A3 is pressed on the bottom of the groove of the collecting box 5, and the packaging film A3 wraps the tobacco leaves in the receiving box. When the first film sealing rod A4 and the second film sealing rod A5 move relative to each other and approach each other, the packaging film at the box mouth of the collecting box is closed and heat-melted, thereby completing the packaging of the tobacco leaves in the receiving box. Thereafter, the packaged tobacco leaves are taken out manually, while the packaging film A3 in the collecting box is still closed and heat-melted, and maintains a continuous state (that is, the free ends of the first plastic roll film A1 and the second plastic roll film A2 are still joined to form a continuous packaging film A3 required for subsequent packaging work).

[0039] In order to achieve the relative approach or distance between the first film sealing rod A4 and the second film sealing rod A5, a rocker arm A7 is installed at the inner end of the first film sealing rod A4 and the second film sealing rod A5, and the end of the rocker arm is rotatably hinged on the collection box 5. The hinged end of the rocker arm A7 is provided with a gear A8, and the gears on the two rocker arms are meshed with each other; an electric push rod A9 is fixedly installed on the collection box, and the free end of the telescopic rod of the electric push rod is connected to the middle part of the first rocker arm. When working, under the drive of the telescopic rod of the electric push rod, the first rocker arm rotates around its hinged end, and then drives the other rocker arm to rotate relatively through the meshing of the gears (the two gears rotate in opposite directions, that is, one gear rotates clockwise and the other gear rotates counterclockwise), so that the first film sealing rod and the second film sealing rod rotate clockwise or counterclockwise around the hinged end, that is, the first film sealing rod and the second film sealing rod are relatively approached or separated.

[0040] For reasonable design, the first film sealing rod A4 is respectively installed with several springs A10 along its length direction, the free end of the spring is installed with a pressure rod A11, and a pressure strip A12 is installed on the pressure rod (the pressure strip A1 can be a high temperature resistant plastic strip, etc.), and the second film sealing rod A5 is provided with a bakelite strip A23 and an electric heating wire A13 installed on the bakelite strip. By designing the spring A10, the first film sealing rod and the second film sealing rod will not be stuck when they are close to each other, thereby reducing the wear on the gears.

[0041] If the fresh tobacco leaves cut by the tobacco leaf cutting mechanism fall directly behind it instead of falling onto the conveyor belt 4, the tobacco leaves will not fall into the collection box, and the collection and packaging work cannot be completed; therefore, a flap mechanism A14 is provided on the side of the above-mentioned collection box.

[0042] The flap mechanism A14 includes a flange sleeve A15 and a flap motor A16 mounted in the flange sleeve A15, the rotating shaft of the flap motor A16 extends out of the flange sleeve and is connected to the flap shaft A17, the flap shaft A17 is connected to a flap base plate A19 located on the side of the collecting box through a flap shaft support seat A18, the edge of the flap base plate A19 away from the collecting box is provided with bristles A20, the bristles A20 are fixed to the edge of the flap base plate A19 by gluing, under the action of the flap motor, the flap base plate is driven to rotate, and the tobacco leaves dropped thereon can be swung into the collecting box, the two groups of symmetrically arranged bristles A20 are relatively close, due to the use of bristles A20, the falling tobacco leaves can be supported and interference can be avoided, if a rigid plate is used at the position of the bristles A20, it will interfere with the moving tobacco plants.

[0043] Specifically, two flap shaft support seats A18 are installed on the flap shaft A17 in parallel and at intervals, the flap base plate A19 is fixedly installed on the two flap shaft support seats A18, the flap motor A16 is fixedly installed on one end face of the flange sleeve A15, and the end cover A21 is fixedly installed on the other end face of the flange sleeve, and the end cover A21 is installed with a bearing A22 and a flap shaft sleeve A22 inserted in the bearing, the flap shaft A17 is inserted in the flap shaft sleeve A22, and the flap shaft is fastened together with the flap shaft sleeve by a set screw, and the output end shaft of the flap motor A16 is coaxial with the flap shaft A17 and is serially connected and linked through (pin keys or couplings, etc.).

[0044] The front end of the flap base plate A19 is tilted downward at a certain angle, the purpose of which is to make the front end of the flap base plate lower than the tobacco leaves to be picked, so that the picking mechanism can scoop up the tobacco leaves during the forward movement, so that the tobacco leaves are located above the flap base plate as a whole, thereby improving the collection success rate; the flap motor and the flap base plate are combined together using a flange sleeve A15 and a flap shaft sleeve A22 combined structure, so that the flap base plate has a cantilever beam structure as a whole, reducing the support points (conventionally two support points are required), and the motor shaft is not affected by the lateral force (the lateral force is mainly borne by the bearing and the flange sleeve), thereby reducing the power consumption of the motor.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A film self-sealing packaging mechanism, characterized in that: The invention comprises a collection box and a first plastic film roll and a second plastic film roll installed on both side walls of the collection box, wherein the packaging film formed by the free ends of the first plastic film roll and the second plastic film roll are held in the groove bottom of the collection box, and a first film sealing rod and a second film sealing rod which can be relatively close to or far away from each other are installed between the two side walls in the collection box, and the first film sealing rod and the second film sealing rod are located on the outside of the packaging film at the box opening of the collection box, and an electric heating wire is provided on the first film sealing rod or the second film sealing rod to close and heat-melt the packaging film at the box opening of the collection box when the first film sealing rod and the second film sealing rod are close to each other.

2. The film self-sealing packaging mechanism according to claim 1, characterized in that: U-shaped mounting seats are fixedly mounted on both side walls of the collection box, and both ends of the first plastic film roll and the second plastic film roll are rotatably hinged on the U-shaped mounting seats.

3. The film self-sealing packaging mechanism according to claim 2, characterized in that: The inner ends of the first film-sealing rod and the second film-sealing rod are equipped with rocker arms, the ends of the rocker arms are rotatably hinged on the collection box, the hinged ends of the rocker arms are provided with gears, and the gears on the two rocker arms are meshed with each other; an electric push rod is fixedly installed on the collection box, and the free end of the telescopic rod of the electric push rod is connected to the middle part of the first rocker arm. Driven by the telescopic rod of the electric push rod, the first rocker arm rotates around its hinged end, and then drives the other rocker arm to rotate through the meshing of the gears, so as to realize the relative approach or distance between the first film-sealing rod and the second film-sealing rod.

4. The film self-sealing packaging mechanism according to claim 3, characterized in that: The first film sealing rod is respectively equipped with a plurality of springs along its length direction, a pressure rod is installed at the free end of the spring, a pressure strip is installed on the pressure rod, and a bakelite strip and an electric heating wire installed on the bakelite strip are arranged on the second film sealing rod.

5. The film self-sealing packaging mechanism according to claim 4, characterized in that: A flap mechanism is provided on the side of the collection box, and the flap mechanism includes a flange sleeve and a flap motor mounted in the flange sleeve. The rotating shaft of the flap motor extends out of the flange sleeve and is connected to the flap shaft. The flap shaft is connected to a flap base plate located on the side of the collection box through a flap shaft support seat. Bristles are provided on the edge of the flap base plate away from the collection box. Under the action of the flap motor, the flap base plate is driven to rotate to swing the tobacco leaves dropped thereon into the collection box.

6. The film self-sealing packaging mechanism according to claim 5, characterized in that: Two flap shaft support seats are installed on the flap shaft in parallel and at intervals, the flap base plate is fixedly installed on the flap shaft support seat, the flap motor is fixedly installed on one end face of the flange sleeve, and an end cover is fixedly installed on the other end face of the flange sleeve, a bearing and a flap shaft sleeve inserted in the bearing are installed on the end cover, the flap shaft is arranged in the flap shaft sleeve, and the output end rotating shaft of the flap motor is coaxially connected in series with the flap shaft.

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