Winding method and winding device with top laminating function

Abstract

The present invention provides a winding method and a winding device with a top film coating function. The film feeding device of the winding device can rotate, and the film feeding device can rotate back and forth between the working angle of winding the film on the side of the article and the working angle of top film coating; the film feeding device performs the top film coating after winding the film on the side of the article, and before starting the top film coating, at least one side of the article upstream of the top film coating starting point is filmed; when performing the top film coating, the film feeding device rises from the film discharge position of the film feeding device below the top of the article to the film discharge position exceeding the top of the article and rotates toward the working angle of the top film coating at the same time, and then descends to the film discharge position below the top of the article and rotates toward the working angle of the film coating at the side, and at the same time, the article rotates relative to the film feeding device to complete a top film coating. The present invention can mechanized, convenient and efficient film coating protection for the top of the article, and the top film coating line is smooth, the film coating is neat, and wrinkles are reduced.

Description

Technical Field

[0001] The invention relates to the field of packaging, and in particular to a winding method and a winding device with a top film laminating function. Background Art

[0002] The wrapping machine is a kind of mechanical equipment in the field of packaging machinery. It is used to wrap film around the surface of the object. It includes a circular turntable. The object is placed on the turntable and rotates with the turntable, so that the film is wrapped around its surface. The film is delivered by a film feeding device, which is installed on a lifting device in the column of the wrapping machine and can rise as the wrapping progresses. Alternatively, the wrapping machine can move around the object by itself, and the film feeding device is installed on a lifting device in the column of the wrapping machine. As the wrapping progresses, it rises and wraps the film around the surface of the object.

[0003] In the existing wrapping machine for wrapping film to package articles, it is difficult to conveniently and efficiently implement film protection on the top of the article, for example, to prevent small articles from falling off when stacking or to protect the top of the article. Summary of the invention

[0004] The first object of the present invention is to provide a wrapping method with a top film laminating function, which can use a wrapping machine to perform film laminating protection on the top of an article. To this end, the present invention adopts the following technical solutions:

[0005] A wrapping method with top film laminating function, wherein a wrapping device is used to wrap a film around the surface of an article for packaging, wherein the film feeding device of the wrapping device can rotate so that the film feeding device can rotate back and forth between a working angle for wrapping the film around the side of the article and a working angle for laminating the top of the article;

[0006] The film feeding device wraps the film around the side of the article and then performs the top film lamination work. Before starting the top film lamination, at least a section of the side of the article upstream of the starting point of the top film lamination is wrapped with film. When performing the top film lamination, the film feeding device rises from a film outlet position of the film feeding device lower than the top of the article to a film outlet position higher than the top of the article and simultaneously rotates toward a working angle for top film lamination, and then descends to a film outlet position lower than the top of the article and simultaneously rotates toward a working angle for wrapping the film around the side. At the same time, the article rotates relative to the film feeding device to complete a strip of top film lamination.

[0007] Furthermore, after completing a strip of top film coating, the article is further rotated relative to the film feeding device to the next top film coating starting point, and a section of the side surface upstream of the next top film coating starting point is wrapped with film; at the next top film coating starting point, the film feeding device rises from a film outlet position of the film feeding device below the top of the article to a film outlet position exceeding the top of the article and simultaneously rotates toward a working angle for top film coating, and then descends to a film outlet position below the top of the article and simultaneously rotates toward a working angle for wrapping the film sideways, and at the same time, the article rotates relative to the film feeding device to complete another strip of top film coating; and this step is repeated.

[0008] Furthermore, the top of the article is regarded as a quadrilateral; and one vertex of the quadrilateral is used as the starting point of a top coating on the top of the article, and its diagonal vertex is used as the end point of the top coating on the top of the article, and the length of the side surface corresponds to one side of the quadrilateral; when coating the top, each vertex is used as the starting point at least once and as the end point at least once.

[0009] Furthermore, when a section of the side surface upstream of the starting point of the top film coating is wrapped with film, the film wraps around the corner between the top and the side surface of the article through the width of the film, and also wraps around the edge portion of the top.

[0010] Further, before the top film is applied to the article, the side film is firstly wound with a certain number of turns, and the remaining turns of the side film are then wound after the top film is applied. After the top film is applied, before the remaining turns of the side film are applied, the part of the top film on the side of the article is firstly wound with one or more turns of the side film.

[0011] Furthermore, after the top film coating is completed, the portion of the top film coating on the side of the article is wrapped around the side for one or more circles.

[0012] The second object of the present invention is to provide a wrapping device that can provide a film-coated protective coating on the top of an article. To this end, the present invention adopts the following technical solutions:

[0013] The winding device includes a film feeding device, a lifting device and a column. The lifting device is arranged in the column. It is characterized in that the lifting device is provided with a lifting connection component, the film feeding device is provided with a motor, the motor is connected to the driving gear, and the film feeding device is rotatably connected to the lifting connection component at a position deviating from the driving gear shaft through a horizontal axis; the lifting connection component is provided with a driven gear that cooperates with the driving gear.

[0014] On the basis of adopting the above technical solutions, the present invention can also adopt the following further technical solutions at the same time, or use these further technical solutions in combination:

[0015] The horizontal shaft is disposed at the central axis of the driven gear, and the driving gear and the driven gear are meshed.

[0016] The driven gear is fixed on the lifting connection component by screws; the horizontal shaft is installed on the mounting member of the film feeding device, the driven gear is provided with a central shaft hole, and a bearing is provided between the hole wall of the central shaft hole and the horizontal shaft.

[0017] The film feeding device is provided with an installation space for the motor, and the motor is arranged in the installation space. The film feeding device is provided with a concave installation plate as the installation part. The lifting connection component adopts a plate-type structure. The film feeding device utilizes the concave installation plate to be close to the lifting connection component of the plate-type structure, and the driving gear and the driven gear are located between the lifting connection component of the plate-type structure and the installation plate.

[0018] The horizontal shaft is mounted on the mounting plate.

[0019] An installation space for the motor is provided in the film feeding device, and the motor is arranged in the installation space.

[0020] The transmission cooperation between the driving gear and the driven gear is a speed reduction cooperation, so that the rotation speed of the film feeding device around the horizontal axis is slower than the rotation speed of the driving gear.

[0021] Due to the adoption of the technical solution of the present invention, the present invention can carry out mechanized, convenient and efficient film coating protection on the top of the object, and the top coating line is smooth, the coating is neat and wrinkles are reduced. The film feeding device provided by the present invention can also rotate a certain angle on the basis of the conventional film feeding device to coat the top and middle annular top surface of the object. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of wrapping an article with a film by a wrapping machine according to the present invention.

[0023] Figure 2 It is a schematic diagram of the circuit of the top coating of the present invention.

[0024] Figure 3 It is a schematic diagram of the winding device of the present invention before the film feeding device rises.

[0025] Figure 4 It is a schematic diagram of the winding device of the present invention after the film feeding device is at a certain height and rotated 90 degrees.

[0026] Figure 5 It is a schematic diagram of the winding device of the present invention after the film feeding device is hidden.

[0027] Figure 6 It is an exploded schematic diagram of the film conveying device and the lifting frame of the present invention.

[0028] Figure 7 for Figure 3 Schematic diagram of the film feeding device in the illustrated embodiment. DETAILED DESCRIPTION

[0029] Referring to the accompanying drawings, in this embodiment, the articles are film-wrapped using the following wrapping device.

[0030] The following first describes in detail the wrapping method with top film laminating function of the present invention in conjunction with the accompanying drawings. When implementing the top film laminating of an object, it is preferred to regard the top of the object as a quadrilateral, which is convenient for control and can also form a cross-cross bundling effect at the top. The following description takes the object 500 as a quadrilateral as an example.

[0031] The total number of traditional film windings on the side of the article 500 can be divided into two parts. Before the top film is coated, as the film feeding device moves from bottom to top, a certain number of side film windings are performed first. After the top film is coated, as the film feeding device moves from top to bottom, the remaining number of side film windings are performed. This is efficient and has a better reinforcement and protection effect on the top film.

[0032] As described above, before the top film is applied, the article is placed on the turntable 400 and has been wound around the side for a certain number of turns. This process can refer to the film winding process of the previous winding device, and the film feeding device 100 performs the certain number of turns of side film winding and runs to the top height of the article. The following steps are expressed in numbers for the convenience of description, but the number marking of the steps in the present invention is only for the purpose of convenience of description. During implementation, part or all of the step actions of the latter number can also be combined with the step actions of the former number, and part or all of the step actions of the former number can also be combined with the step actions of the latter number.

[0033] (1) Before top lamination, the angle of the film feeding device 100 is at the working angle for side film wrapping. The article is rotated relative to the film feeding device to the starting point of top lamination (corresponding to vertex A2), and the upstream side section is wrapped with film, that is, the section corresponding to side a is wrapped with film.

[0034] (2) Top lamination with vertex A2 as the starting point and vertex A4 as the end point at the top of the article. When performing top lamination, the film feeding device 100 rises from the film discharge position of the film feeding device (the roller 102 at the film discharge port of the film feeding device can be used as a reference) below the top of the article to the film discharge position exceeding the top of the article and simultaneously rotates toward the working angle of top lamination, and then descends to the film discharge position below the top of the article and simultaneously rotates toward the working angle of side-wrap film; at the same time, driven by the turntable 400, the article rotates relative to the film feeding device, and when the film feeding device descends to a set height below the top of the article, the vertex A4 of the article rotates to face the film discharge position, completing a top lamination, and the route on the top of the article is the connecting line e with A2 as the starting point and A4 as the end point.

[0035] (3) The article continues to rotate relative to the film feeding device to the next top film coating starting point (corresponding to vertex A1). The angle of the film feeding device 100 is at the working angle of the side film winding. A section of the side upstream of the new top film coating starting point is wrapped with film, that is, a section corresponding to edge d is wrapped with film.

[0036] (4) Top lamination with vertex A1 as the starting point and vertex A3 as the end point on the top of the article. When performing top lamination, the film feeding device 100 rises from the film discharge position of the film feeding device below the top of the article to the film discharge position exceeding the top of the article and rotates toward the working angle of top lamination at the same time, and then descends to the film discharge position below the top of the article and rotates toward the working angle of the film winding sideways at the same time; at the same time, driven by the turntable 400, the article rotates relative to the film feeding device, and when the film feeding device descends to a set height below the top of the article, the vertex A3 of the article rotates to face the film discharge position, completing a top lamination, and the route on the top of the article is a connecting line f with A1 as the starting point and A3 as the end point.

[0037] In this way, steps (3) and (4) are repeated continuously; the film is wrapped around edge c, and the route on the top of the object is a top coating of the line e with A4 as the starting point and A2 as the end point, and the film is wrapped around edge b, and the route on the top of the object is another top coating of the line f with A3 as the starting point and A1 as the end point. In this way, when coating the top, each vertex is used as the starting point at least once and as the end point at least once. The above process can be repeated as needed.

[0038] When performing top lamination, the rotation speed of the turntable 400 can be lower than that of the side film winding. This not only avoids excessive requirements on the lifting device, but also ensures stable operation and improves the work quality of the top lamination.

[0039] In the steps (1) and (3), when the side of the article is wrapped with film, the film covers both sides of the corner between the top and the side of the article due to the width of the film, so that the edge of the top of the article is also covered by the film.

[0040] After the top film coating is completed, before the remaining number of side film windings are performed, the portion of the top film coating located on the side of the article may be firstly wound with one or several turns of side film to further reinforce the top film coating.

[0041] According to the shape characteristics of the object, the object can also be regarded as a polygon greater than or equal to four, such as a pentagon or hexagon, and the vertices of the polygon are regarded as the end and starting point of a coating line on the top. A coating route can be a diagonal line every other vertex. Generally speaking, these polygons are best regarded as regular polygons, such as squares, regular pentagons, regular hexagons, etc.

[0042] The winding device provided by the present invention is described in detail below in conjunction with the accompanying drawings. It includes a film feeding device 100, a turntable 400, a lifting device 200 and a column 300. In addition to the structure related to the rotation function described below, the film feeding device 100 can adopt a traditional film feeding device with a film frame and a roller. The lifting device 200 can adopt a chain transmission device and is arranged in the column 300. The object 500 is placed on the turntable 400.

[0043] The lifting device 200 is provided with a lifting connection component 201, and the lifting connection component 201 is connected to the connecting frame 202 on the chain. The film feeding device 100 is provided with a motor 1, and the motor 1 is connected to the driving gear 2. The film feeding device 100 is rotatably connected to the lifting connection component 201 at a position deviating from the driving gear shaft 20 through a horizontal axis 4; the lifting connection component 201 is provided with a driven gear 3 that cooperates with the driving gear 2.

[0044] During implementation, the horizontal axis 4 is arranged at the central axis of the driven gear 3 , the driven gear 3 is fixed to the lifting connection component 201 by screws, the driving gear 2 and the driven gear 3 are meshed, and the film feeding device 100 and its driving gear 2 rotate around the driven gear 3 .

[0045] The horizontal shaft 4 is mounted on a mounting member 5 of the film feeding device. The driven gear 3 is provided with a central shaft hole 30 . A bearing 6 is provided between the hole wall of the central shaft hole 30 and the horizontal shaft 4 .

[0046] The film feeding device 100 is provided with an installation space 101 for the motor 1, and the motor 1 is arranged in the installation space 101. The film feeding device 100 is provided with a concave installation plate as the installation part 5. The lifting connection component 201 adopts a plate-type structure. The film feeding device utilizes the concave installation plate to be close to the lifting connection component 201 of the plate-type structure, so that the two can be basically close to each other, and the driving gear 2 and the driven gear 3 are located between the lifting connection component 201 of the plate-type structure and the installation plate.

[0047] The transmission cooperation between the driving gear 2 and the driven gear 3 is a speed reduction cooperation, so that the rotation speed of the film feeding device 100 around the horizontal axis 4 is slower than the rotation speed of the driving gear 2 .

[0048] Through the drive of the motor 1 and the gear transmission, the film feeding device can rotate back and forth between the working angle for wrapping the film on the side of the object (this angle is often the angle that makes the film roll perpendicular to the ground) and the working angle for top coating (this angle is often the angle that makes the film roll parallel to the ground). The rotation can be clockwise or counterclockwise, and the turntable 400 can also rotate clockwise or counterclockwise. In this embodiment, the turntable rotates counterclockwise in the direction facing the turntable column.

[0049] During the top film coating operation, the lifting distance and timing of the film feeding device, the rotation timing and angle of the motor 1, the rotation speed of the turntable, etc. can be controlled by setting the controller of the winding device or by controlling the sensing device.

[0050] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the protection scope of the present invention.

Claims

1. A wrapping method with top film laminating function, using a wrapping device to wrap a film around the surface of an article for packaging, characterized in that: The film feeding device of the wrapping device is rotatable, so that the film feeding device can rotate back and forth between a working angle for wrapping the film on the side of the article and a working angle for laminating the top of the article; The film feeding device wraps the film around the side of the article and then performs the top film coating operation. Before the top film coating is started, at least a section of the side of the article upstream of the top film coating starting point is wrapped with film. When performing the top film coating, the film feeding device rises from a film discharge position of the film feeding device below the top of the article to a film discharge position exceeding the top of the article and simultaneously rotates toward the working angle of the top film coating, and then descends to a film discharge position below the top of the article and simultaneously rotates toward the working angle of the film coating around the side. At the same time, the article rotates relative to the film feeding device to complete a strip of top film coating. After a top film is coated, the article is rotated relative to the film feeding device to the next top film coating starting point, and a side surface upstream of the next top film coating starting point is wrapped with film; At the next top film lamination starting point, the film feeding device rises from the film outlet position of the film feeding device below the top of the article to the film outlet position exceeding the top of the article and simultaneously rotates toward the working angle of top film lamination, and then descends to the film outlet position below the top of the article and simultaneously rotates toward the working angle of side-winding film, and at the same time, the article rotates relative to the film feeding device to complete another top film lamination; repeat this step.

2. The winding method with top laminating function according to claim 1, characterized in that: The top of the article is regarded as a quadrilateral; one vertex of the quadrilateral is used as the starting point of a top film on the top of the article, and its diagonal vertex is used as the end point of the top film on the top of the article, and the length of the side surface corresponds to one side of the quadrilateral; During top lamination, each vertex is used as a starting point at least once and as an end point at least once.

3. The winding method with top laminating function according to claim 1, characterized in that: When a section of the side surface upstream of the starting point of the top film is wrapped with film, the film wraps around the corner between the top and the side of the article through the width of the film, and also wraps around the edge of the top.

4. The winding method with top laminating function according to claim 1, characterized in that: Before the top film is applied to the article, a certain number of side film wrappings are first performed, and after the top film is applied, the remaining number of side film wrappings are performed.

5. The winding method with top laminating function according to claim 1, characterized in that: After the top film coating is completed, the portion of the top film coating located on the side of the article is wrapped around the side for one or more circles.

6. The winding method with top laminating function as claimed in claim 4, characterized in that: After the top film coating is completed, before the remaining number of side film windings are performed, the portion of the top film coating located on the side of the article is firstly wound with one or several turns of side film.

7. A winding device using the winding method as claimed in claim 1, comprising a film feeding device, a turntable, a lifting device and a column, wherein the lifting device is arranged inside the column, characterized in that The lifting device is provided with a lifting connection component, the film feeding device is provided with a motor, the motor is connected to the driving gear, and the film feeding device is rotatably connected to the lifting connection component at a position deviating from the driving gear axis through a horizontal axis; the lifting connection component is provided with a driven gear that cooperates with the driving gear.

8. The winding device according to claim 7, characterized in that The horizontal shaft is disposed at the central axis of the driven gear, and the driving gear and the driven gear are meshed.

9. The winding device according to claim 8, characterized in that The driven gear is fixed on the lifting connection component by screws; the horizontal shaft is installed on the mounting member of the film feeding device, the driven gear is provided with a central shaft hole, and a bearing is provided between the hole wall of the central shaft hole and the horizontal shaft.

Images