KR20230111727A - Cardboard Manufacturing Device - Google Patents

Abstract

The present invention relates to a corrugated cardboard manufacturing device which can efficiently manufacture corrugated cardboard sheets in various thicknesses by stacking a plurality of corrugated cardboard sheets in multiple layers. The corrugated cardboard manufacturing device comprises: a plurality of corrugated cardboard forming parts, which, while moving along between two interlocking waveform rollers, apply adhesive on the top and bottom surfaces of a corrugated core having a waveform using two adhesive applying devices and adhere base paper to the top surface to form corrugated cardboard; a lamination part, which moves a plurality of corrugated cardboards and printing papers delivered individually from the plurality of corrugated cardboard forming parts along between a first pressure roller and a second pressure roller installed facing each other, and laminates the corrugated cardboard and the printing paper together; a heating part which is installed beneath the corrugated cardboard moving after passing through the lamination part to heat the adhesive applied to the corrugated core; a first conveyor pressure part which supports the underside of the corrugated cardboard moving after passing through the lamination part; and a second conveyor pressure part which faces the first conveyor pressure part, is installed above the first conveyor pressure part, and operates in close contact with the top side of the corrugated cardboard sheets moving after passing through the lamination part to press the corrugated cardboard heated by the heating part together with the first conveyor pressure part.

Description

Cardboard Manufacturing Device {Cardboard Manufacturing Device}

The present invention relates to a corrugated cardboard manufacturing apparatus, and more particularly, to a corrugated cardboard manufacturing apparatus implemented to efficiently manufacture corrugated cardboard having various thicknesses by stacking a plurality of corrugated cardboard in multiple layers.

In general, corrugated board is a so-called paper plate material in which liner paper (hereinafter referred to as 'base paper') is attached to the front and back of the corrugated medium, which has a corrugated structure and a corrugated board that has a structural and mechanical buffering action.

In addition to the structure described above, depending on the purpose, the corrugated medium is attached to one side of a single base paper, or corrugated cardboard in which the corrugated core is doubled for the base paper, and the corrugated core of the corrugated cardboard packaging material has a corrugated cross-sectional shape. By reinforcing the weakness of a packaging box made of a single paper lipid and forming a space, it has a function to protect the goods contained therein from external interference conditions to some extent or reduce the loss of temperature, thereby preventing deformation due to the temperature of the goods (food and beverages, etc.) contained therein, Because of its low price, most corrugated cardboard materials are widely used as packaging materials.

The thickness of the base paper is determined according to the wave spacing and height of the corrugated medium, and the corrugated medium is manufactured according to A-gool (5mm), B-gool (3mm), and E-gool (1.2-1.5mm).

The corrugated board, for example, when the corrugated medium is formed in two layers, consists of three original papers (surface paper, center paper, back paper) and two corrugated papers, the surface paper, the corrugated medium, the center, the corrugated medium, and the back paper are sequentially laminated / bonded from top to bottom, but the surface paper is laminated with various types of surface offset printing papers in relation to the type of article to be packaged. [0006] The manufacturing process of the corrugated cardboard described above consists of a process of first manufacturing a corrugated cardboard with three base papers and two corrugated cores, printing by separately providing printing paper, and then laminating the printing paper to the surface of the corrugated cardboard.

Therefore, in the conventional corrugated board, the base paper (surface paper) of the upper portion of the printing paper lamination is wasted, and at the same time, the work process of laminating the printing paper on the surface paper is separated and proceeds separately, so the work process is complicated and time-consuming, resulting in poor work efficiency. There was a problem.

On the other hand, the above-described background art is technical information that the inventor possessed for derivation of the present invention or acquired during the derivation process of the present invention, and cannot necessarily be referred to as known art disclosed to the general public prior to filing the present invention.

Korean Utility Model Registration No. 20-0483410 Korean Patent Publication No. 10-2020-0078747

One aspect of the present invention provides a corrugated cardboard manufacturing apparatus implemented to efficiently manufacture corrugated cardboard having various thicknesses by stacking a plurality of corrugated cardboard in multi-layers.

The technical problem of the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

Corrugated cardboard manufacturing apparatus according to an embodiment of the present invention, while moving along the two corrugated rollers installed in engagement with each other, the corrugated medium on the upper and lower surfaces of the corrugated medium on which the corrugated medium is formed, each of which applies an adhesive using two adhesive application devices, and then adheres the base paper to the upper surface to form corrugated cardboard; A lamination unit for laminating the plurality of corrugated cardboard and the printing paper individually delivered from the plurality of corrugated cardboard forming units while moving them between a first pressure roller and a second pressure roller installed while facing each other; a heating unit installed below the moving corrugated cardboard after passing through the lamination unit to heat the adhesive applied to the corrugated medium; A first conveyor pressing unit supporting the lower side of the moving corrugated cardboard after passing through the lamination unit; And it is installed above the first conveyor pressing part while facing the first conveyor pressing part, and is driven in close contact with the upper side of the moving corrugated cardboard after passing through the lamination part, and the corrugated cardboard heated by the heating unit. A second conveyor pressing part that presses together with the first conveyor pressing part.

In one embodiment, the second conveyor pressing unit, the inward surface of each corner is supported by three corner support rollers disposed in a triangular shape to form a "Δ" shape, and the lower outward surface is in close contact with the upper surface of the corrugated cardboard. A contact conveyor belt that rotates together as the cardboard moves and presses the corrugated cardboard in a downward direction; and a pressure roller unit that supports the lower inward surface of the contact conveyor belt that is in close contact with the corrugated cardboard and at the same time presses the lower side of the contact conveyor belt in a downward direction.

In one embodiment, the pressure roller unit, a plurality of pressure rollers disposed spaced apart from each other at regular intervals in the front-back direction along the lower inward surface of the contact conveyor belt in close contact with the corrugated cardboard to support the lower side of the contact conveyor belt; first side frames connected to each one side of the plurality of pressure rollers so as to be rotatable and supporting each one side of the plurality of pressure rollers; a second side frame connected to each other side of the plurality of pressure rollers so as to be rotatable and supporting each other side of the plurality of pressure rollers; a first pressing unit installed on the upper side of the first side frame to lift and drive the first side frame in a vertical direction; and a second pressing unit installed on the upper side of the second side frame to lift and drive the second side frame in a vertical direction.

In one embodiment, the first pressing unit, while facing the first side frame and spaced upwardly from the first side frame fixedly installed fixed frame; a shear cylinder installed between the front end of the fixed frame and the front end of the first side frame and moving the front end of the first side frame in the vertical direction while extending or contracting in the vertical direction; and a rear end cylinder installed between the rear end of the fixed frame and the rear end of the first side frame and moving the rear end of the first side frame in a vertical direction while extending or contracting in a vertical direction.

In one embodiment, the first pressing unit is installed on the upper side of the front end of the first side frame to support the lower side of the shear cylinder, and to buffer vibration or shock transmitted from the first side frame to the shear cylinder. A first shock absorber; and a second shock absorber installed on the upper side of the rear end of the first side frame to support the lower side of the rear end cylinder and to absorb vibration or impact transmitted from the first side frame to the rear end cylinder.

In one embodiment, the first shock absorber is formed in the shape of a box forming an inner space, is installed on the upper side of the front end of the first side frame, and the lower side of the front cylinder is inserted into the inner space through an opening formed on the upper side. A housing; And a buffering elastic part installed on the lower side of the inner space of the housing to support the lower side of the shear cylinder inserted into the inner space of the housing and at the same time to absorb vibration or impact transmitted from the first side frame to the shear cylinder.

In one embodiment, the elastic buffer, the upper support plate for supporting the lower side of the shear cylinder; a lower support plate spaced apart from the upper support plate and supporting the lower side of the inner space of the housing; a lower support block formed in a cylindrical shape and installed on an upper side of the lower support plate; It is formed in the form of a corrugated tube that can be extended or contracted in the vertical direction and is installed between the lower side of the upper support plate and the upper side of the lower support block to seal the space between the lower side of the upper support plate and the upper side of the lower support block. Bellows type sealing cover; and a plate support part installed on the upper side of the lower support block sealed by the bellows-type sealing cover to support the upper support plate.

In one embodiment, the plate support portion, the central post installed upright in the upper center of the lower support block; a first buffer support installed on one side of the upper portion of the lower support block and supporting one side of the upper support plate; a second buffer support part spaced apart from the first buffer support part at an angle of 120º with the center post as a central axis and supporting the lower side of the upper support plate; and a third buffer support part spaced apart from the first buffer support part and the second buffer support part at an angle of 120º with the central post as a central axis and supporting the lower side of the upper support plate.

In one embodiment, the first buffering support is formed to extend in the vertical direction, the lower part is inserted into the lower support block, the upper part is exposed to the upper side of the lower support block, and the pivoting support head rotatably connected to the upper part supports the lower side of the upper support plate, and is supported by an upper holder installed along the outer side of the upper part and a first buffer spring installed between the upper surface of the lower support block; The lower part of the vertical support part installed inside the lower support block and inserted into the lower support block is disposed inside, and the lower part of the vertical support part is supported upward by the fluid accommodated in the inner space. A vertical support cylinder; and an inclined support having one end rotatably connected to the rotation support head and the other end rotatably connected to one lower side of the center post to support the rotation support head, and as the upper support plate descends and the vertical support unit descends, one end and the other end each rotate and the length is reduced at the same time.

In one embodiment, the inclined support unit, the upper end of the first rotational frame is connected to the rotational support head to be rotatably installed; a second rotational frame having an upper end facing the lower end of the first rotational frame and having a lower end rotatably connected to one side of the lower portion of the center post; Each stop of the linear first link frame and the second link frame is installed to be foldable, and a plurality of support links forming an "X" shape are connected and installed to be rotatable with each other in a row in the longitudinal direction, a foldable support link installed between the lower end of the first rotational frame and the upper end of the second rotational frame; A plurality of intermediate support frames connected and installed upright to be rotatable at one side of the intersection where the first link frame and the second link frame are connected and installed; a second buffer spring installed between the plurality of intermediate support frames to support a gap between the plurality of intermediate support frames; A frame distortion prevention bar, one end of which is fixed to the lower end of the first pivoting frame and the other end of which is inserted through the inside of each of the second shock absorber springs and which is also inserted through each of the intermediate supporting frames, is inserted into the second pivoting frame through the upper end of the second pivoting frame, and supports between the first pivoting frame and the second pivoting frame so that the first pivoting frame and the second pivoting frame can be maintained in a straight line; and an inclined support cylinder for supporting the other end of the frame anti-twisting bar in an upward direction by a fluid accommodated in an internal space, the other end of the frame anti-twisting bar installed inside the second pivoting frame and inserted into the second pivoting frame is disposed inside.

In one embodiment, the vertical support cylinder may include a fluid tank installed inside the lower support block while forming a sealed inner space in which fluid is accommodated; a fluid delivery pipe installed in communication between the inclined support cylinder and the lower end of the fluid tank to transfer or receive fluid between them; a separation partition wall which divides the fluid tank into a lower space accommodating the fluid and an upper space not accommodating the fluid, and is installed to slide vertically inside the fluid tank; and a vertical buffer spring installed on the upper side of the separation partition wall to support a lower end of the vertical support unit inserted into the upper space.

According to one aspect of the present invention described above, it is possible to provide an effect of improving the quality of corrugated cardboard while improving the manufacturing efficiency of corrugated cardboard having various thicknesses by stacking a plurality of corrugated cardboard in multiple layers.

Effects of the present invention are not limited to the effects mentioned above, and various effects may be included within a range apparent to those skilled in the art from the contents to be described below.

1 is a diagram showing a schematic configuration of a corrugated board manufacturing apparatus according to an embodiment of the present invention.
FIG. 2 is a view showing the pressure roller part of FIG. 1 .
FIG. 3 is a view showing the first buffer part of FIG. 2 .
4 and 5 are views showing one embodiment of the elastic buffer of FIG. 3 .
FIG. 6 is a view showing the first buffer support portion of FIG. 4 .
FIG. 7 is a view showing the inclined support of FIG. 6 .
FIG. 8 is a view showing an embodiment of the vertical support cylinder of FIG. 6 .
9 and 10 are views showing corrugated cardboard manufactured by the corrugated cardboard manufacturing apparatus according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed description of the present invention which follows refers to the accompanying drawings which illustrate, by way of illustration, specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable one skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different from each other but are not necessarily mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in another embodiment without departing from the spirit and scope of the invention in connection with one embodiment. Additionally, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. Accordingly, the detailed description set forth below is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all equivalents as claimed by those claims. Like reference numbers in the drawings indicate the same or similar function throughout the various aspects.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

1 is a diagram showing a schematic configuration of a corrugated board manufacturing apparatus according to an embodiment of the present invention.

Referring to Figure 1, the corrugated cardboard manufacturing apparatus 10 according to an embodiment of the present invention, a plurality of corrugated cardboard forming unit 100, a laminating unit 200, a heating unit 300, a first conveyor pressing unit 400 and a second conveyor pressing unit 500.

The corrugated board forming unit 100 moves along the two corrugated rollers 110-1 and 110-2 installed in engagement with each other, and then applies the adhesive to the upper and lower surfaces of the corrugated medium P1 on which the corrugated medium is formed using two adhesive application devices 120-1 and 120-2, respectively, and then uses the two rollers 130-1 and 130-2 installed in close proximity to each other to apply the base paper P2 to the upper surface. By adhering to form a corrugated cardboard (P4).

Lamination unit 200, the plurality of corrugated cardboard (P4) and the printing paper (P3), which are individually delivered from the plurality of corrugated cardboard forming unit 100, the first pressure roller 210 and the second pressure roller 220 are installed while facing each other. While moving along between them (P5), the first conveyor pressure unit 400 and the second conveyor pressure unit 500 are transferred to each other.

In one embodiment, the lamination unit 200, as shown in Figures 9 and 10, after stacking so that the valleys of each corrugated cardboard (P4) cross each other at right angles, and then seating the printing paper (P3) on the bottom or top end It can be laminated.

The heating unit 300 is installed below the moving corrugated cardboard (P5) after passing through the lamination unit 200, and heats the adhesive applied to the corrugated cardboard (P4) between the corrugated cardboard (P4) and the printing paper (P3) Heats the adhesive applied to the corrugated paper (P1) so that it can be stably laminated (P5).

In one embodiment, the heating unit 300 is heated to 150 to _250 ° C_, and the heat of 150 to _250 ° C_ is applied to the upper at least one corrugated medium P1 through the first conveyor pressing unit 400. The adhesive may be heated and gelled so that the adhesive is integrated.

The first conveyor pressing unit 400 is installed downward from the second conveyor pressing unit 500 while facing the second conveyor pressing unit 500, and moves after passing through the laminating unit 200. Supports the lower side of the corrugated cardboard P5.

The second conveyor pressing unit 500 is installed above the first conveyor pressing unit 400 while facing the first conveyor press unit 400, and is driven in close contact with the upper side of the moving corrugated cardboard P5 after passing through the lamination unit 200, and presses the corrugated cardboard P5 heated by the heating unit 300 together with the first conveyor pressing unit 400.

In one embodiment, the second conveyor pressing unit 500 may include a close contact conveyor belt 510 and a pressing roller unit 520 .

The tight conveyor belt 510 is formed in a "Δ" shape by supporting the inward side of each corner by three corner support rollers R1, R2, and R3 arranged in a triangular shape, and the lower outward side is in close contact with the upper surface of the corrugated cardboard (P5), while rotating together as the corrugated cardboard (P4) moves, presses the corrugated cardboard (P5) in the downward direction.

The pressure roller unit 520 supports the lower inward surface of the contact conveyor belt 510 in close contact with the corrugated cardboard P5 and at the same time brings the lower side of the contact conveyor belt 510 in close contact with the lower side in the downward direction.

Corrugated cardboard manufacturing apparatus 10 according to an embodiment of the present invention having the configuration as described above, as shown in FIGS. 9 and 10, a plurality of corrugated cardboard is laminated in multiple layers to improve the manufacturing efficiency of corrugated cardboard of various thicknesses, and at the same time, the quality of corrugated cardboard can be improved.

FIG. 2 is a view showing the pressure roller part of FIG. 1 .

Referring to FIG. 2 , the pressure roller unit 520 includes a plurality of pressure rollers 521, a first side frame 522, a second side frame 523, a first pressure unit 524, and a second pressure unit 525.

A plurality of pressure rollers 521 are spaced apart from each other at regular intervals in the front-back direction along the lower inward surface of the close contact conveyor belt 510 in close contact with the corrugated cardboard P4, and each one side and the other side are first side frames 522. And the second side frame 523 is connected and supported so as to be rotatable, and supports the lower side of the close contact conveyor belt 510.

The first side frame 522 is installed so that each one side of the plurality of pressure rollers 521 can rotate, supports each one side of the plurality of pressure rollers 521, and is supported by the first pressing part 524. At the same time, it is driven in the vertical direction by the first pressing part 524.

The second side frame 523 is installed so that each other side of the plurality of pressure rollers 521 can rotate, supports each other side of the plurality of pressure rollers 521, and is supported by the second pressing part 525. At the same time, the second pressing part 525 is driven in the vertical direction.

The first pressing part 524 is installed on the upper side of the first side frame 522 to lift and lower the first side frame 522 in the vertical direction.

The second pressing part 525 is installed on the upper side of the second side frame 523 and drives the second side frame 523 up and down.

In one embodiment, the first pressing unit 524 may include a fixing frame 5241 , a front cylinder 5242 and a rear cylinder 5243 .

Here, the second pressing unit 525 has the same configuration as the first pressing unit 524 to be described later, and the fixing frame 5241, the front cylinder 5242, and the rear cylinder 5243 of the first pressing unit 524 can be equally applied, and the description thereof will be omitted to avoid duplication of description.

The fixed frame 5241 is fixedly installed while facing the first side frame 522 and spaced upward from the first side frame 522 .

The front end cylinder 5242 is installed between the front end of the fixed frame 5241 and the front end of the first side frame 522, and moves the front end of the first side frame 522 in the vertical direction while extending or contracting in the vertical direction.

The rear cylinder 5243 is installed between the rear end of the fixed frame 5241 and the rear end of the first side frame 522, and moves the rear end of the first side frame 522 in the vertical direction while extending or contracting in the vertical direction.

The first pressing unit 524 having the configuration described above may further include a first buffer unit 5244 and a second buffer unit 5245 .

The first shock absorber 5244 is installed on the upper side of the front end of the first side frame 522 to support the lower side of the front cylinder 5242, and from the first side frame 522 to the front cylinder 5242. It buffers vibration or shock transmitted.

The second shock absorber 5245 is installed on the upper side of the rear end of the first side frame 522 to support the lower side of the rear end cylinder 5243, and the vibration or shock transmitted from the first side frame 522 to the rear end cylinder 5243 is buffered.

In one embodiment, the first buffer unit 5244 may include a housing 52441 and a buffer elastic unit 52442 .

The housing 52441 is formed in a box shape forming an inner space and is installed on the upper side of the front end of the first side frame 522, and the lower side of the front cylinder 5242 is inserted into the inner space through an opening formed on the upper side.

The elastic buffer 52442 is installed on the lower side of the inner space of the housing 52441 and supports the lower side 5242a of the front cylinder 5242 inserted into the inner space of the housing 52441 (i.e., a piston rod driven in the vertical direction, etc.) and at the same time absorbs vibration or impact transmitted from the first side frame 522 to the front cylinder 5242.

The pressure roller unit 520 having the configuration as described above, the corrugated cardboard (P5) is pressed with a constant force by the close conveyor belt 510 so that the corrugated cardboard (P5) is uniformly and stably laminated. On the other hand, excessive force is applied to the corrugated cardboard (P5) to prevent the corrugated cardboard (P5) from being damaged by not overpowering the force and deteriorating manufacturing quality.

4 and 5 are views showing one embodiment of the elastic buffer of FIG. 3 .

4 and 5, the elastic buffer 600 according to an embodiment includes an upper support plate 610, a lower support plate 620, a lower support block 630, a bellows-type sealing cover 640, and a plate support 650.

The upper support plate 610 is formed in a disk shape, the lower side is supported by the plate support portion 650 and is spaced upward from the lower support plate 620 to support the lower side 5242a of the front cylinder 5242, and the upper edge of the bellows type sealing cover 640 is installed along the edge.

The lower support plate 620 is formed in the same disk shape as the upper support plate 610, is spaced downward from the upper support plate 610, and supports the lower side of the inner space of the housing 52441, and the lower support block 630 is installed on the upper side.

The lower support block 630 is formed in a cylindrical shape and is installed on the upper side of the lower support plate 620, the lower edge of the bellows type sealing cover 640 is installed along the upper edge, and the plate support part 650 is installed on the upper side.

The bellows-type sealing cover 640 is formed in the form of a cylindrical corrugated tube that can be extended or contracted in the vertical direction, and is installed between the lower side of the upper support plate 610 and the upper side of the lower support block 630 to seal the space between the lower side of the upper support plate 610 and the upper side of the lower support block 630 for the plate support 650 to be installed, so that foreign substances such as dust or moisture flow into the plate support 650 and plate support 6 50) to prevent damage.

The plate support 650 is installed on the upper side of the lower support block 630 sealed by the bellows type sealing cover 640 to support the upper support plate 610 .

In one embodiment, the plate support 650 includes a central post 651, a first buffer support 700-1, a second buffer support 700-2, and a third buffer support 700-3.

The center post 651 is installed upright at the upper center of the lower support block 630, and the first buffer support 700-1, the second buffer support 700-2 and the third buffer support 700-3 are installed at equal intervals of 120º from each other along the outer side.

At this time, the center post 651 has a height lower than the vertical height of the first buffer support 700-1, the second buffer support 700-2, and the third buffer support 700-3 so as to form a space in which the first buffer support 700-1, the second buffer support 700-2, and the third buffer support 700-3 can move up and down.

The first buffer support 700-1 is installed on one upper side of the lower support block 630 to support one side of the upper support plate 610.

The second buffer support 700-2 is spaced apart from the first buffer support 700-1 at an angle of 120º with the center post 651 as a central axis to support the lower side of the upper support plate 610.

The third buffer support 700-3 is spaced apart from the first buffer support 700-1 and the second buffer support 700-2 at an angle of 120º with the center post 651 as a central axis, and supports the lower side of the upper support plate 610.

That is, the first buffer support part 700-1, the second buffer support part 700-2, and the third buffer support part 700-3 divide the upper support plate 610 by 1/3 and independently support each installed area.

Accordingly, the plate support portion 650, not only when the upper support plate 610 descends horizontally, but also when only one side of the upper support plate 610 descends, the first buffer support portion 700-1, the second buffer support portion 700-2, or the third buffer support portion 700-3 supported by any one of the buffer supports, so that vibration or impact transmitted from various directions can be effectively supported and buffered.

The elastic buffer 600 according to an embodiment having the configuration described above can stably support or buffer vibrations or impacts from various directions, thereby enabling stable support.

FIG. 6 is a view showing the first buffer support portion of FIG. 4 .

Referring to FIG. 6 , the first buffer support 700-1 includes a vertical support 710, a vertical support cylinder 720, and an inclined support 730.

Here, the second buffering support 700-2 and the third buffering support 700-3 have the same configuration as the first buffering support 700-1 to be described later, and the vertical support 710 of the first buffering support 700-1, The vertical support cylinder 720 and the inclined support 730 can be equally applied, so the description thereof will be omitted to avoid duplication of description.

The vertical support part 710 extends in the vertical direction, the lower part is inserted into the lower support block 630 and the upper part is exposed to the upper side of the lower support block 630, and the rotation support head 713 connected to the upper part supports the lower side of the upper support plate 610 and is installed between the upper holder 711 formed in a circular ring shape and installed along the outer side of the upper part and the upper surface of the lower support block 630. 1 is supported by a buffer spring 712.

That is, as shown in FIG. 6 , the vertical support 710 may pass through the inside of the first buffer spring 712 and be inserted and disposed.

At this time, the first buffer spring 712 supports the upper holder 711 so that the upper support plate 610 is supported by the vertical support 710, and at the same time, from the upper support plate 610 to the upper holder 711. Vibration or shock transmitted via 711 can be buffered.

The vertical support cylinder 720 is installed inside the lower support block 630, and the lower portion of the vertical support 710 inserted into the lower support block 630 is disposed inside, and the fluid (eg, air, water, or oil) accommodated in the internal space supports the lower portion of the vertical support 710 in an upward direction.

In one embodiment, the vertical support cylinder 720 may raise the vertical support 710 as the fluid is supplied, and may lower the vertical support 710 as the fluid flows out, as will be described later.

In the inclined support part 730, one end disposed on the upper side is rotatably connected to the rotational support head 713 and the other end disposed on the lower side is rotatably connected to the lower one side 651a of the center post 651 to support the rotational support head 713. Vibration or shock transmitted from the support head 713 is buffered.

The first buffering support part 700-1 having the configuration described above supports the lower side of the upper support plate 610 and at the same time can effectively buffer vibration or shock transmitted from the upper support plate 610.

FIG. 7 is a view showing the inclined support of FIG. 6 .

Referring to FIG. 7 , the inclined support unit 730 includes a first rotational frame 731, a second rotational frame 732, a foldable support link 733, a plurality of intermediate support frames 734, a second buffer spring 735, a frame distortion prevention bar 736, and an inclined support cylinder 737.

The first rotational frame 731 has an upper end connected to the rotational support head 713 so as to be rotatable, and a lower side supported by a foldable support link 733 and a frame distortion prevention bar 736.

The upper side of the second rotational frame 732 is supported by the foldable support link part 733 and the frame distortion prevention bar 736, and the upper side is disposed facing the lower side of the first rotational frame 731, and the lower side is rotatably connected to the lower one side 651a of the center post 651.

The foldable support link unit 733 is formed by connecting a plurality of support links (F3-1, F3-2, F3-3) forming an "X" shape by connecting each intermediate portion (H) of the linear first link frame (F1) and the second link frame (F2) so as to be foldable and rotatably connected to each other in a row in the longitudinal direction, and is installed between the lower end of the first pivoting frame 731 and the upper end of the second pivoting frame 732. As the distance between the first rotational frame 731 and the second rotational frame 732 decreases or increases, the first link frame F1 and the second link frame F2 are folded and extended or contracted while supporting the first rotational frame 731 and the second rotational frame 732.

At this time, as shown in FIG. 7, each end of the first link frame F1 and the second link frame F2 constituting one support link F3 is connected to the second link frame F2 and the other end of the first link frame F1 constituting the other support link F3.

The intermediate support frame 734 is upright and connected so as to be rotatable at each side of the crossing position H where the first link frame F1 and the second link frame F2 are connected and installed, and the frame distortion prevention bar 736 penetrates and is inserted.

That is, the intermediate support frame 734 moves in the forward and backward directions along the frame anti-twisting bar 736 as the distance between the first rotational frame 731 and the second rotational frame 732 decreases or increases.

The second buffer spring 735 is installed between the plurality of intermediate support frames 734 to support the gap between the plurality of intermediate support frames 734, and the frame torsion prevention bar 736 is installed along the inside while penetrating.

The frame anti-twisting bar 736 extends in a straight shape, one end is fixedly installed at the lower end of the first pivoting frame 731, and the other end is inserted while passing through the inside of each of the second buffer springs 735, and also penetrates and inserts each of the intermediate support frames 734 and is inserted into the second pivoting frame 732 through the upper end of the second pivoting frame 732 to bend the foldable support link 733 The first rotational frame 731 and the second rotational frame 732 are supported between the first rotational frame 731 and the second rotational frame 732 to maintain a straight line.

In the inclined support cylinder 737, the other end of the frame distortion prevention bar 736 installed inside the second rotation frame 732 and inserted into the second rotation frame 732 is disposed inside, and the other end of the frame distortion prevention bar 736 is supported upward by the fluid accommodated in the internal space.

In one embodiment, the inclined support cylinder 737 supplies the fluid L contained in the internal space to the fluid tank 721 while the frame distortion prevention bar 736 is inserted as the distance between the first rotational frame 731 and the second rotational frame 732 decreases, and the fluid L is supplied as the distance between the first rotational frame 731 and the second rotational frame 732 increases, resulting in frame distortion. The prevention bar 736 may be discharged.

The inclined support 730 having the configuration described above supports the vertical support 710 while rotating as the vertical support 710 moves up and down and extending or contracting in the longitudinal direction, and at the same time can effectively absorb vibration or shock transmitted from the vertical support 710.

FIG. 8 is a view showing an embodiment of the vertical support cylinder of FIG. 6 .

Referring to FIG. 8 , the vertical support cylinder 720a includes a fluid tank 721, a fluid delivery pipe 722, a separation partition wall 723, and a vertical buffer spring 724.

The fluid tank 721 is installed inside the lower support block 630 while forming a sealed inner space in which the fluid L is accommodated.

The fluid delivery pipe 722 communicates between the inclined support cylinder 737 and the lower end of the fluid tank 721 and is installed to transfer or receive the fluid L between them.

The separation partition wall 723 divides the fluid tank 721 into a lower space N1 accommodating the fluid and an upper space N2 not accommodating the fluid, and is installed to enable sliding movement in the up and down directions inside the fluid tank 721, and supports the vertical buffer spring 724 installed on the upper side.

The vertical buffer spring 724 is installed on the upper side of the separation partition 723 to support the lower end of the vertical support 710 inserted into the upper space.

The vertical support cylinder 720a having the configuration described above supports the lower side of the vertical support 710 at normal times and at the same time buffers vibration or shock transmitted from the vertical support 710, and as the vertical support 710 descends and the distance between the first rotational frame 731 and the second rotational frame 732 in FIG. 721 to raise the separation barrier 723, it is possible to effectively prevent the vertical support 710 from descending.

The above-described embodiments are for illustrative purposes, and those skilled in the art to which the above-described embodiments belong can easily be modified into other specific forms without changing the technical spirit or essential features of the above-described embodiments. It will be appreciated. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope to be protected through this specification is indicated by the claims to be described later rather than the detailed description above, and should be construed to include all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof.

10: corrugated cardboard manufacturing device
100: corrugated board forming unit
200: laminating part
300: heating unit
400: first conveyor pressing unit
500: second conveyor pressing unit

Claims (10)

A plurality of corrugated cardboard forming units for forming corrugated cardboard by adhering the base paper to the upper surface after applying the adhesive to the upper and lower surfaces of the corrugated medium by using two adhesive application devices, respectively, while moving along the two corrugated rollers installed in engagement with each other;
A lamination unit for laminating the plurality of corrugated cardboard and the printing paper individually delivered from the plurality of corrugated cardboard forming units while moving them between a first pressure roller and a second pressure roller installed while facing each other;
a heating unit installed below the moving corrugated cardboard after passing through the lamination unit to heat the adhesive applied to the corrugated medium;
A first conveyor pressing unit supporting the lower side of the moving corrugated cardboard after passing through the lamination unit; and
It is installed above the first conveyor pressing part while facing the first conveyor pressing part, and is driven in close contact with the upper side of the moving corrugated cardboard after passing through the lamination part, and the corrugated cardboard heated by the heating unit A second conveyor pressing part for pressing together with the first conveyor pressing part; corrugated cardboard manufacturing apparatus comprising a.
The method of claim 1, wherein the second conveyor pressing unit,
The inward surface of each corner is supported by three corner support rollers arranged in a triangular shape to form a "Δ" shape, the lower outward surface is in close contact with the upper surface of the corrugated cardboard, and rotates together as the corrugated cardboard moves A close-contact conveyor belt that presses the corrugated cardboard downward; and
Containing, corrugated cardboard manufacturing apparatus.
The method of claim 2, wherein the pressure roller unit,
A plurality of pressure rollers disposed spaced apart from each other at regular intervals in the forward and backward directions along the lower inward surface of the close contact conveyor belt that is in close contact with the corrugated cardboard to support the lower side of the close contact conveyor belt;
first side frames connected to each one side of the plurality of pressure rollers so as to be rotatable and supporting each one side of the plurality of pressure rollers;
a second side frame connected to each other side of the plurality of pressure rollers so as to be rotatable and supporting each other side of the plurality of pressure rollers;
a first pressing unit installed on the upper side of the first side frame to lift and drive the first side frame in a vertical direction; and
, Corrugated cardboard manufacturing apparatus including; a second pressing unit installed on the upper side of the second side frame to lift and drive the second side frame in the vertical direction.
The method of claim 3, wherein the first pressing unit,
a fixed frame facing the first side frame and spaced upward from the first side frame;
a shear cylinder installed between the front end of the fixed frame and the front end of the first side frame and moving the front end of the first side frame in the vertical direction while extending or contracting in the vertical direction; and
It is installed between the rear end of the fixed frame and the rear end of the first side frame, while extending or contracting in the vertical direction, the rear end cylinder for moving the rear end of the first side frame in the vertical direction; including, corrugated cardboard manufacturing apparatus.
The method of claim 4, wherein the first pressing unit,
A first shock absorber installed on the upper side of the front end of the first side frame to support the lower side of the front end cylinder and to buffer vibration or impact transmitted from the first side frame to the front end cylinder; and
It is installed on the upper side of the rear end of the first side frame to support the lower side of the rear end cylinder, and a second buffer unit for buffering vibration or shock transmitted from the first side frame to the rear end cylinder; further comprising, corrugated cardboard manufacturing apparatus.
The method of claim 5, wherein the first buffer unit,
a housing formed in a box shape forming an internal space, installed above the front end of the first side frame, and inserting a lower side of the front cylinder into the internal space through an opening formed on the upper side; and
Corrugated cardboard manufacturing apparatus including; installed on the lower side of the inner space of the housing to support the lower side of the shearing cylinder inserted into the inner space of the housing and at the same time buffering the vibration or shock transmitted from the first side frame to the shearing cylinder.
The method of claim 6, wherein the elastic buffer,
an upper support plate supporting a lower side of the shear cylinder;
a lower support plate spaced apart from the upper support plate and supporting the lower side of the inner space of the housing;
a lower support block formed in a cylindrical shape and installed on an upper side of the lower support plate;
It is formed in the form of a corrugated tube that can be extended or contracted in the vertical direction and is installed between the lower side of the upper support plate and the upper side of the lower support block to seal the space between the lower side of the upper support plate and the upper side of the lower support block. Bellows type sealing cover; and
, Corrugated cardboard manufacturing apparatus including; is installed on the upper side of the lower support block is formed sealed by the bellows type sealing cover plate support for supporting the upper support plate.
The method of claim 7, wherein the plate support,
a center post installed upright on the upper center of the lower support block;
a first buffer support installed on one side of the upper portion of the lower support block and supporting one side of the upper support plate;
a second buffer support part spaced apart from the first buffer support part at an angle of 120º with the center post as a central axis and supporting the lower side of the upper support plate; and
With the center post as a central axis, the first buffer support and the second buffer support are installed at an angle of 120º, respectively, and a third buffer support supporting the lower side of the upper support plate; including, corrugated cardboard manufacturing apparatus.
The method of claim 8, wherein the first buffer support,
It extends in the vertical direction, the lower part is inserted into the lower support block, the upper part is exposed to the upper side of the lower support block, and a rotation support head connected to the upper side to be rotatably installed supports the lower side of the upper support plate, and an upper holder installed along the outer side of the upper side and a vertical support supported by a first buffer spring installed between the upper side of the lower support block;
The lower part of the vertical support part installed inside the lower support block and inserted into the lower support block is disposed inside, and the lower part of the vertical support part is supported upward by the fluid accommodated in the inner space. A vertical support cylinder; and
One end is rotatably connected to the pivoting support head and the other end is rotatably connected to one side of the lower portion of the center post to support the pivoting support head, and the upper support plate is lowered to lower the vertical support. As the vertical support is lowered, one end and the other end are each rotated and at the same time the length is reduced.
The method of claim 9, wherein the inclined support portion,
a first rotational frame having an upper end connected to and rotatably connected to the rotational support head;
a second rotational frame having an upper end facing the lower end of the first rotational frame and having a lower end rotatably connected to one side of the lower portion of the center post;
Each stop of the linear first link frame and the second link frame is installed to be foldable, and a plurality of support links forming an "X" shape are connected and installed to be rotatable with each other in a row in the longitudinal direction, a foldable support link installed between the lower end of the first rotational frame and the upper end of the second rotational frame;
A plurality of intermediate support frames connected and installed upright to be rotatable at one side of the intersection where the first link frame and the second link frame are connected and installed;
a second buffer spring installed between the plurality of intermediate support frames to support a gap between the plurality of intermediate support frames;
A frame distortion prevention bar, one end of which is fixed to the lower end of the first pivoting frame and the other end of which is inserted through the inside of each of the second shock absorber springs and which is also inserted through each of the intermediate supporting frames, is inserted into the second pivoting frame through the upper end of the second pivoting frame, and supports between the first pivoting frame and the second pivoting frame so that the first pivoting frame and the second pivoting frame can be maintained in a straight line; and
It is installed inside the second rotation frame and the other end of the frame twist prevention bar inserted into the second rotation frame is disposed inside, and the frame by a fluid accommodated in the inner space An inclined support cylinder supporting the other end of the frame twist prevention bar in an upward direction; corrugated cardboard manufacturing apparatus comprising a.