Line pressing and grooving equipment and corrugated board

Abstract

The embodiment of the utility model provides line pressing and grooving equipment and a corrugated board. The line pressing and grooving equipment is suitable for corrugated boards and comprises an equipment body, a pre-pressing wheel set, a line pressing wheel set and a grooving wheel set, wherein the pre-pressing wheel set, the line pressing wheel set and the grooving wheel set are all assembled on the equipment body; the pre-pressing wheel set comprises a first pre-pressing wheel and a second pre-pressing wheel. The line pressing wheel set comprises line pressing wheels. The second pre-pressing wheel is provided with a plane and a pair of first arc surfaces, and the plane has a preset target width; a flange is arranged on the line pressing wheel, the line pressing wheel is at least provided with a pair of second arc surfaces and a pair of inclined guide surfaces, and the pair of second arc surfaces and the pair of inclined guide surfaces are symmetrical about the flange; the pair of second arc surfaces are connected to the two opposite sides of the flange in the axial direction of the line pressing wheel respectively, and each inclined guide surface is connected to the side, away from the flange, of one second arc surface. According to the line pressing and grooving equipment, the pressing line does not deviate, so that a carton made of corrugated boards has the advantage of being good in forming effect, and the requirement for high quality can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated cardboard printing equipment, in particular to a creasing and grooving device and a corrugated cardboard. Background Art

[0002] Corrugated cardboard is a common material for making cartons, and cartons are a commonly used packaging material. In the process of processing and producing cartons using corrugated cardboard, creasing and grooving equipment suitable for corrugated cardboard is indispensable.

[0003] With the development of the machinery industry and the continuous advancement of processing technology, the processing performance requirements of corrugated cardboard creasing and grooving equipment in the process of processing and producing cartons are becoming increasingly higher.

[0004] In the process of processing and producing cartons using corrugated cardboard, for the corrugated cardboard that has completed the printing process, subsequent processes such as creasing, grooving, trimming, and corner cutting are required.

[0005] Generally speaking, when corrugated cardboard is folded into cartons, the corrugated cardboard must be crimped at the folding point; therefore, whether the structural design of the crimping process in the crimping and slotting equipment is reasonable can directly affect the molding quality and molding effect of the carton.

[0006] When the pressing line of the corrugated cardboard is pressed on the corrugated cardboard's flute line, the pressing line will slide out of position or offset. Specifically, the corrugated cardboard is usually made of at least two layers of cardboard and at least one layer of arched board glued together, and there is glue at the flute line position. Therefore, when the pressing line just presses on the flute line, the pressing line will offset, thereby affecting the aesthetics and molding quality of the carton. At this time, it not only cannot satisfy high-end customers, but also fails to meet customer requirements. As a result, manufacturers need to manually re-press and correct the unqualified corrugated cardboard a second time, which leads to increased costs and reduced efficiency.

[0007] Traditional creasing and slotting equipment does not pre-press the corrugated cardboard, which causes the corrugated cardboard to not be crushed and softened in the gluing area, making it easy for the creasing lines on the corrugated cardboard to be pressed onto the flutes of the corrugated cardboard. This will not only lead to defects such as easy deviation of the creasing lines, difficulty in carton forming, poor carton forming effect, high cost and low efficiency, but also cause defects such as poor aesthetics, poor forming quality, difficulty in satisfying high-end customers and difficulty in meeting customer requirements. Utility Model Content

[0008] The crimping and grooving equipment and corrugated cardboard provided by the utility model are intended to solve at least part of the defects of the existing crimping and grooving equipment applicable to corrugated cardboard.

[0009] In a first aspect, the present invention provides a crimping and grooving device. The crimping and grooving device is suitable for corrugated cardboard; the crimping and grooving device comprises:

[0010] Equipment body, pre-pressing wheel group, crimping wheel group and slotting wheel group; the pre-pressing wheel group, the crimping wheel group and the slotting wheel group are all assembled on the equipment body;

[0011] The pre-pressing wheel group includes a first pre-pressing wheel and a second pre-pressing wheel through which the corrugated cardboard passes in sequence; the line pressing wheel group includes a line pressing wheel;

[0012] The second pre-pressing wheel has a first outer ring surface in an annular shape, and the first outer ring surface is coaxial with the second pre-pressing wheel;

[0013] The first outer annular surface at least includes a plane and a pair of first arc surfaces, and the plane has a preset target width in the axial direction of the second pre-pressing wheel;

[0014] The plane is located in the middle of the first outer annular surface, and a pair of the first arc surfaces are symmetrically arranged on two opposite sides of the plane in the axial direction of the second pre-pressing wheel;

[0015] The crimping wheel has a second outer ring surface in an annular shape, and the second outer ring surface is coaxial with the crimping wheel;

[0016] The crimping wheel is provided with a flange protruding from the second outer annular surface, and the flange is located in the middle of the second outer annular surface;

[0017] The second outer annular surface comprises at least a pair of second arc surfaces and a pair of oblique guide surfaces, and the pair of second arc surfaces and the pair of oblique guide surfaces are symmetrical about the flange;

[0018] A pair of the second arc surfaces are respectively connected to two opposite sides of the flange in the axial direction of the crimping wheel, and each of the inclined guide surfaces is connected to a side of the second arc surface away from the flange.

[0019] In some embodiments, when the corrugated cardboard passes through the first pre-pressing wheel, flexible contact is formed between the first pre-pressing wheel and the corrugated cardboard.

[0020] In some embodiments, when the corrugated paperboard passes through the second pre-pressing wheel, the plane abuts against the surface of the corrugated paperboard and is used to press the corrugated paperboard;

[0021] When the corrugated cardboard passes through the creasing wheel, the flange abuts against the surface of the corrugated cardboard and is used to bend the corrugated cardboard;

[0022] The first arc surface and the second arc surface are both used to support the corrugated paperboard so that the corrugated paperboard moves along a first direction in a preset first situation;

[0023] The first direction is a direction from the second pre-pressing wheel toward the pressing wheel.

[0024] In some embodiments, each of the inclined guide surfaces has a first end and a second end opposite to each other in the axial direction of the crimping wheel, and the first end is connected to the second arc surface;

[0025] The first end has a first radial dimension, the second end has a second radial dimension, and the first radial dimension is greater than the second radial dimension;

[0026] The oblique guide surface is used to guide the corrugated paperboard after being bent by the flange to move along the second direction in a preset second situation;

[0027] The second direction is a direction from the first end to the second end.

[0028] In some embodiments, the slotted wheel assembly comprises:

[0029] a first slotting wheel, a second slotting wheel, a first paper picking knife and a second paper picking knife;

[0030] The first slotted wheel and the second slotted wheel are respectively arranged on two opposite sides of the crimping wheel in the first direction, and the first slotted wheel is located between the crimping wheel and the second pre-pressing wheel;

[0031] The first paper picking knife is arranged on a side of the first slotting wheel close to the crimping wheel in the first direction;

[0032] The second paper picking knife is arranged on a side of the second notching wheel away from the crimping wheel in the first direction.

[0033] In some embodiments, the corrugated cardboard may pass through the first pre-pressing wheel, the second pre-pressing wheel, the first notching wheel, the creasing wheel, and the second notching wheel in sequence.

[0034] In some embodiments, the wire crimping and grooving device further comprises:

[0035] The second pre-pressing wheel, the first slotted wheel, the line pressing wheel and the second slotted wheel are connected by the synchronous belt to form synchronous rotation.

[0036] In some embodiments, a first annular groove is formed on the first slotted wheel, and the first annular groove is coaxial with the first slotted wheel;

[0037] A second annular groove is formed on the second slotted wheel, and the second annular groove is coaxial with the second slotted wheel;

[0038] At least a portion of the first paper picking knife is accommodated in the first annular groove, and at least a portion of the second paper picking knife is accommodated in the second annular groove.

[0039] In a second aspect, the present invention provides a corrugated cardboard. The corrugated cardboard comprises:

[0040] At least two layers of paperboard and at least one layer of arched board; each layer of the arched board is arranged between two adjacent layers of the paperboard;

[0041] At least a portion of the arched plate is pressed by the second pre-pressing wheel of the above-mentioned crimping and grooving equipment to form a flat portion;

[0042] The crimping wheel of the crimping and grooving device can be bent at the flattening portion and at positions corresponding to the paperboard and the flattening portion.

[0043] In some embodiments, the arched plate is composed of a plurality of arched protrusions arranged along the third direction, and each of the arched protrusions has a top and an opening portion opposite to each other in the fourth direction;

[0044] One of the two adjacent layers of paperboard is bonded to the opening, and the other is bonded to the top;

[0045] Two adjacent arched protrusions have a preset target distance in the third direction, and a target width of the plane of the second pre-pressing wheel is greater than the target distance;

[0046] The flat portion and the plane have a shape and size that match each other.

[0047] At least one beneficial effect of the crimping and grooving device and corrugated cardboard provided by the embodiment of the present invention is as follows: a new crimping and grooving device suitable for corrugated cardboard is proposed, by adding a second pre-pressing wheel structural design, and designing a plane with a target width on the second pre-pressing wheel to squeeze the corrugated cardboard, so that the adhesive area of ​​the corrugated cardboard is squeezed and softened; then, by adding a crimping wheel structural design, and designing a flange on the crimping wheel to crimp the softened adhesive area; finally, a pair of first arc surfaces are designed on the second pre-pressing wheel, and a pair of second arc surfaces are designed on the crimping wheel. Arc surface, and the first arc surface and the second arc surface are both used to support the corrugated cardboard to prevent it from deviating. At the same time, a pair of inclined guide surfaces are designed on the creasing wheel, which are used to follow the downward pressure direction of the corrugated cardboard after bending, so as to achieve the purpose of not deviating the creasing line; in summary, this creasing and grooving equipment uses a special structural design for the second pre-pressing wheel and the creasing wheel to prevent the creasing line on the corrugated cardboard from deviating, thereby not only achieving the advantages of good forming effect, good forming quality, low cost and high efficiency, but also better satisfying high-end customers and better meeting customer requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as the same elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0049] Figure 1 The wire crimping and grooving device provided by the embodiment of the present utility model does not reveal the structural schematic diagram of the synchronous belt;

[0050] Figure 2 A schematic cross-sectional view of a corrugated cardboard provided in an embodiment of the present utility model;

[0051] Figure 3 A schematic structural diagram of a second pre-pressing wheel provided in an embodiment of the present utility model;

[0052] Figure 4 The embodiment of the present utility model provides Figure 3 A local enlarged view at point A;

[0053] Figure 5 A schematic structural diagram of a crimping wheel provided in an embodiment of the present utility model;

[0054] Figure 6 The embodiment of the present utility model provides Figure 5 A partial enlarged view at point B;

[0055] Figure 7The wire crimping and grooving device provided in an embodiment of the present invention shows a structural schematic diagram of a synchronous belt.

[0056] Reference numerals:

[0057] 100. Wire creasing and slotting equipment; 1001. First direction; 1002. Second direction; 1. Equipment body; 2. Pre-pressing wheel assembly; 21. First pre-pressing wheel; 22. Second pre-pressing wheel; 221. Plane; 222. First arc surface; 2211. Target width; 3. Wire creasing wheel assembly; 31. Wire creasing wheel; 301. Flange; 302. Second arc surface; 303. Oblique guide surface; 3031. First end; 3032. Second end; 4. Slotting wheel assembly; 41. First slotting wheel; 42. Second slotting wheel; 43. First paper picking knife; 44. Second paper picking knife; 411. First annular groove; 421. Second annular groove; 5. Synchronous belt;

[0058] 200, corrugated cardboard; 2001, cardboard; 2002, arched plate; 2003, arched protrusion; 2004, third direction; 2005, fourth direction; 2006, top; 2007, opening; 2008, target distance; 2009, corrugation line. DETAILED DESCRIPTION

[0059] The present invention is described in detail below with reference to specific embodiments. It should be emphasized that the following description is merely illustrative and is not intended to limit the scope and application of the present invention.

[0060] It should be noted that, unless otherwise clearly specified and limited, the terms "axial", "first direction", "second direction", "third direction", "fourth direction", "close", "relative", etc. used in this specification to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention. Terms such as "installation", "fitting", "connection" and "fixation" should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; "fixation" can be bolt fixation, snap fixation or glue fixation; the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated; thus, the features limited to "first", "second", "third" and "fourth" may explicitly or implicitly include one or more of the features; "multiple" or "several" means two or more; in addition, "and / or" includes any and all combinations of one or more related listed items; for ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0061] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0062] In this embodiment, the specific shape, structure and size of the "crimping and grooving equipment and corrugated cardboard" are not limited, and those skilled in the art can selectively use any appropriate implementation method according to actual needs.

[0063] Figure 1 The wire crimping and grooving device provided in the embodiment of the present invention does not reveal the structural schematic diagram of the synchronous belt. Figure 2 A schematic cross-sectional view of a corrugated cardboard provided in an embodiment of the present invention. Figure 3 This is a schematic structural diagram of the second pre-pressing wheel provided in an embodiment of the present utility model. Figure 4 The embodiment of the present utility model provides Figure 3 A partial enlarged view of point A. Figure 5 This is a schematic structural diagram of the crimping wheel provided in an embodiment of the utility model. Figure 6 The embodiment of the present utility model provides Figure 5 A partial enlarged view at point B.

[0064] See also Figures 1-6The creasing and slotting device 100 is suitable for corrugated cardboard 200 and can perform creasing and slotting processing on the corrugated cardboard 200.

[0065] In the process of processing and producing cartons using corrugated cardboard, for the corrugated cardboard that has completed the printing process, subsequent processes such as creasing and grooving are still required.

[0066] The above-mentioned crimping and grooving device 100 includes: a device body 1, a pre-pressing wheel set 2, a crimping wheel set 3 and a grooving wheel set 4.

[0067] Among them, the pre-pressing wheel set 2, the line pressing wheel set 3 and the slotting wheel set 4 are all assembled on the equipment body 1.

[0068] In addition, the pre-pressing wheel group 2 includes a first pre-pressing wheel 21 and a second pre-pressing wheel 22 through which the corrugated cardboard 200 passes in sequence; the crimping wheel group 3 includes a crimping wheel 31.

[0069] In addition, the second pre-pressing wheel 22 has a first annular outer ring surface (not shown in the figure), and the first outer ring surface is coaxial with the second pre-pressing wheel 22; the first outer ring surface can be understood as the outer surface of the second pre-pressing wheel 22.

[0070] Specifically, the first outer annular surface at least includes a plane 221 and a pair of first arc surfaces 222 , and the plane 221 has a preset target width 2211 in the axial direction of the second pre-pressing wheel 22 .

[0071] To further illustrate, the plane 221 can squeeze the corrugated cardboard 200 so that the adhesive area (not shown in the figure) of the corrugated cardboard 200 is crushed and softened, so that the pressing line on the corrugated cardboard 200 will not be pressed onto the corrugated cardboard 200's flute line 2009, so that the pressing line on the corrugated cardboard 200 will not be offset, thereby not only achieving the advantages of good molding effect, good molding quality, low cost and high efficiency, but also better satisfying high-end customers and better meeting customer requirements.

[0072] Generally speaking, the corrugated cardboard 200 is usually formed by gluing at least two layers of cardboard 2001 and at least one layer of arched board 2002 together. Among them, one layer of the at least two layers of cardboard 2001 is glued to the top 2006 of the arched protrusion 2003, and the other layer is glued to the opening 2007 of the arched protrusion 2003. Moreover, since the arched board 2002 is formed by arranging a plurality of arched protrusions 2003 in an end-to-end manner, the above-mentioned gluing area is the space occupied by two adjacent arched protrusions 2003.

[0073] In summary, since the corrugated cardboard 200 is bonded, there is glue at the corrugated cardboard 200 at the corrugated line 2009 , so when the pressing line just presses against the corrugated line 2009 , the pressing line will be offset; specifically, the corrugated line 2009 refers to the bonding position between the arched protrusion 2003 and the cardboard 2001 .

[0074] It should be noted that the plane 221 is located in the middle of the first outer annular surface, and a pair of first arc surfaces 222 are symmetrically arranged on opposite sides of the plane 221 in the axial direction of the second pre-pressing wheel 22 .

[0075] It can be understood that the crimping wheel 31 has a second outer ring surface (not shown in the figure) in an annular shape, and the second outer ring surface is coaxial with the crimping wheel 31; the second outer ring surface can be understood as the outer surface of the crimping wheel 31.

[0076] In the embodiment of the present application, the crimping wheel 31 is provided with a flange 301 protruding from the second outer annular surface, and the flange 301 is located in the middle position of the second outer annular surface.

[0077] To further illustrate, the second outer annular surface includes at least a pair of second arc surfaces 302 and a pair of oblique guide surfaces 303 , and the pair of second arc surfaces 302 and the pair of oblique guide surfaces 303 are symmetrical about the flange 301 .

[0078] Specifically, a pair of second arc surfaces 302 are respectively connected to opposite sides of the flange 301 in the axial direction of the crimping wheel 31 , and each inclined guide surface 303 is connected to a side of the second arc surface 302 away from the flange 301 .

[0079] In some embodiments, as Figure 1 and Figure 2 As shown, when the corrugated cardboard 200 passes through the first pre-pressing wheel 21, a flexible contact is formed between the first pre-pressing wheel 21 and the corrugated cardboard 200; therefore, the downward pre-pressing amplitude of the corrugated cardboard 200 by the first pre-pressing wheel 21 is relatively low, so the pre-pressing wheel set 2 mainly crushes and softens the corrugated cardboard 200 through the second pre-pressing wheel 22; in summary, the pre-pressing wheel set 2 adds the flexible first pre-pressing wheel 21, the main purpose of which is to achieve the effect of multiple pre-pressing.

[0080] In some embodiments, combined Figures 1-6 It can be seen that when the corrugated cardboard 200 passes through the second pre-pressing wheel 22, the plane 221 contacts the surface of the corrugated cardboard 200 and is used to squeeze the corrugated cardboard 200, so that the adhesive area of ​​the corrugated cardboard 200 is crushed and softened, so that at least a part of the arched plate 2002 can form a flat portion (not shown in the figure); and the space occupied by the flat portion is larger than the space occupied by the adhesive area.

[0081] Among them, when the corrugated cardboard 200 passes through the crimping wheel 31, the flange 301 abuts against the surface of the corrugated cardboard 200 and is used to bend the corrugated cardboard 200; in addition, the crimping wheel 31 mainly performs bending processing in the above-mentioned flattening part (the flattening part includes the crushed and softened adhesive area).

[0082] In addition, the first arc surface 222 and the second arc surface 302 are both used to support the corrugated cardboard 200 so that the corrugated cardboard 200 moves along the first direction 1001 in a preset first situation. This design can prevent the corrugated cardboard 200 from deviating during the movement; moreover, the first arc surface 222 and the second arc surface 302 can also make the transition more gentle.

[0083] Specifically, the first direction 1001 is a direction from the second pre-pressing wheel 22 to the pressing wheel 31 .

[0084] In some embodiments, according to Figure 1 、 Figure 2 、 Figure 5 and Figure 6 It can be seen that each inclined guide surface 303 has a first end 3031 and a second end 3032 opposite to each other in the axial direction of the crimping wheel 31 , and the first end 3031 is connected to the second arc surface 302 .

[0085] It should be noted that the first end 3031 has a first radial dimension, the second end 3032 has a second radial dimension, and the first radial dimension is greater than the second radial dimension.

[0086] It can be understood that the inclined guide surface 303 is used to guide the corrugated cardboard 200 after being bent by the flange 301 to move along the second direction 1002 in a preset second situation; in other words, the inclined guide surface 303 is used to follow the downward pressing direction of the corrugated cardboard after being bent, so as to achieve the purpose of not deviating the pressing line.

[0087] In the embodiment of the present application, the second direction 1002 is a direction from the first end 3031 toward the second end 3032 .

[0088] In some embodiments, Figure 1 It can be seen that the slotting wheel assembly 4 includes: a first slotting wheel 41 , a second slotting wheel 42 , a first paper picking knife 43 and a second paper picking knife 44 .

[0089] The first slotted wheel 41 and the second slotted wheel 42 are respectively disposed on opposite sides of the crimping wheel 31 in the first direction 1001 , and the first slotted wheel 41 is located between the crimping wheel 31 and the second pre-pressing wheel 22 .

[0090] In addition, the first paper-picking knife 43 is disposed on a side of the first notching wheel 41 close to the pressing wheel 31 in the first direction 1001 .

[0091] In addition, the second paper-picking knife 44 is disposed on a side of the second notching wheel 42 away from the crimping wheel 31 in the first direction 1001 .

[0092] In some embodiments, reference Figure 1 and Figure 2 It can be seen that the corrugated cardboard 200 can pass through the first pre-pressing wheel 21, the second pre-pressing wheel 22, the first slotting wheel 41, the creasing wheel 31 and the second slotting wheel 42 in sequence.

[0093] Figure 7 The wire crimping and grooving device provided in an embodiment of the present invention shows a structural schematic diagram of a synchronous belt.

[0094] In some embodiments, please refer to Figure 7 The wire crimping and grooving device 100 further includes: a synchronous belt 5 .

[0095] Specifically, the second pre-pressing wheel 22 , the first slotting wheel 41 , the wire pressing wheel 31 and the second slotting wheel 42 are connected by a synchronous belt 5 to form synchronous rotation, thereby increasing the synchronization of the wire pressing and slotting device 100 .

[0096] In some embodiments, as Figure 1 and Figure 7 As shown, a first annular groove 411 is formed on the first slotted wheel 41 , and the first annular groove 411 is coaxial with the first slotted wheel 41 .

[0097] To further illustrate, a second annular groove 421 is formed on the second slotted wheel 42 , and the second annular groove 421 is coaxial with the second slotted wheel 42 ;

[0098] Specifically, at least a portion of the first paper-picking blade 43 is accommodated in the first annular groove 411 , and at least a portion of the second paper-picking blade 44 is accommodated in the second annular groove 421 .

[0099] It is further explained that the above-mentioned first slotting wheel 41 and second slotting wheel 42 can be used to perform front and rear slotting processing on the corrugated cardboard 200; the first paper picking knife 43 and the second paper picking knife 44 (paper picking knife can also be called chip removing knife) mainly function to remove paper scraps remaining in the first slotting wheel 41 and the second slotting wheel 42 (that is, to remove paper scraps remaining in the first annular groove 411 and the second annular groove 421). Therefore, the first paper picking knife 43 and the second paper picking knife 44 can effectively avoid the occurrence of paper jams, thereby ensuring the smooth operation of the present crimping and slotting device 100; generally speaking, paper jams not only affect production efficiency, but may also cause damage to the equipment and cutting tools.

[0100] See also Figures 1-6 The corrugated cardboard 200 includes: at least two layers of cardboard 2001 and at least one layer of arched board 2002.

[0101] Each layer of the arched plate 2002 is arranged between two adjacent layers of paperboard 2001; at least a portion of the arched plate 2002 is squeezed by the second pre-pressing wheel 22 of the above-mentioned creasing and grooving device 100 to form a flat portion (not shown in the figure).

[0102] In addition, the crimping wheel 31 of the crimping and grooving device 100 can be bent at the flattening portion and the position of the paperboard 2001 corresponding to the flattening portion.

[0103] In some embodiments, combined Figures 1-4 It can be seen that the arch plate 2002 is composed of a plurality of arch protrusions 2003 arranged along the third direction 2004 , and each arch protrusion 2003 has a top 2006 and an opening 2007 that are opposite in the fourth direction 2005 .

[0104] It can be understood that one of the two adjacent layers of paperboard 2001 is adhered to the opening 2007 , and the other is adhered to the top 2006 .

[0105] It should be noted that two adjacent arched protrusions 2003 have a preset target distance 2008 in the third direction 2004 (the target distance 2008 is the width of the adhesive area in the cross section), and the target width 2211 of the plane 221 of the second pre-pressing wheel 22 is greater than the target distance 2008.

[0106] In the embodiment of the present application, the flattened portion and the plane 221 have a shape and size that match each other; therefore, the width of the flattened portion in the cross section is greater than the width of the adhesive region in the cross section.

[0107] Specifically, the creasing and grooving device 100 is the lower grooving machine of a corrugated cardboard printing press, and the corrugated cardboard printing press also includes an upper grooving machine; wherein, the corrugated cardboard printing press is a digital printing device for printing corrugated cardboard, which is mainly suitable for the printing needs of various packaging products (for example, food packaging, electronic product packaging, daily necessities packaging, etc.).

[0108] In summary, the creasing and grooving equipment and corrugated cardboard provided by the embodiment of the present invention are designed by adding a second pre-pressing wheel structure, and designing a plane with a target width on the second pre-pressing wheel to squeeze the corrugated cardboard, so that the adhesive area of ​​the corrugated cardboard is squeezed and softened; then, by adding a creasing wheel structure design, and designing a flange on the creasing wheel to creasing the softened adhesive area; finally, a pair of first arc surfaces are designed on the second pre-pressing wheel, and a pair of second arc surfaces are designed on the creasing wheel, and the first arc surface and the second arc surface are The arc surfaces are used to support the corrugated cardboard to prevent it from deviating. At the same time, a pair of oblique guide surfaces are designed on the crimping wheel. The oblique guide surfaces are used to follow the downward pressure direction of the corrugated cardboard after bending, so as to achieve the purpose of not deviating the crimping line. In summary, the crimping and grooving equipment uses a special structural design for the second pre-pressing wheel and the crimping wheel to prevent the crimping line on the corrugated cardboard from deviating. This not only achieves the advantages of good forming effect, good forming quality, low cost and high efficiency, but also better meets the needs of high-end customers and better meets customer requirements. Therefore, the crimping and grooving equipment for corrugated cardboard provided by the embodiment of the utility model has certain novelty compared to the traditional crimping and grooving equipment for corrugated cardboard.

[0109] The above content is a further detailed description of the present invention in conjunction with specific / preferred embodiments, and the specific implementation of the present invention cannot be limited to these descriptions. Those skilled in the art will appreciate that various modifications and improvements can be made without departing from the concept of the present invention, and all of these modifications and improvements fall within the scope of protection of the present invention.

Claims

1. A creasing and grooving device suitable for corrugated cardboard; characterized in that: include: Equipment body, pre-pressing wheel group, crimping wheel group and slotting wheel group; the pre-pressing wheel group, the crimping wheel group and the slotting wheel group are all assembled on the equipment body; The pre-pressing wheel group includes a first pre-pressing wheel and a second pre-pressing wheel through which the corrugated cardboard passes in sequence; the line pressing wheel group includes a line pressing wheel; The second pre-pressing wheel has a first outer ring surface in an annular shape, and the first outer ring surface is coaxial with the second pre-pressing wheel; The first outer annular surface at least includes a plane and a pair of first arc surfaces, and the plane has a preset target width in the axial direction of the second pre-pressing wheel; The plane is located in the middle of the first outer annular surface, and a pair of the first arc surfaces are symmetrically arranged on two opposite sides of the plane in the axial direction of the second pre-pressing wheel; The crimping wheel has a second outer ring surface in an annular shape, and the second outer ring surface is coaxial with the crimping wheel; The crimping wheel is provided with a flange protruding from the second outer annular surface, and the flange is located in the middle of the second outer annular surface; The second outer annular surface comprises at least a pair of second arc surfaces and a pair of oblique guide surfaces, and the pair of second arc surfaces and the pair of oblique guide surfaces are symmetrical about the flange; A pair of the second arc surfaces are respectively connected to two opposite sides of the flange in the axial direction of the crimping wheel, and each of the inclined guide surfaces is connected to a side of the second arc surface away from the flange.

2. The wire crimping and grooving device according to claim 1, characterized in that: When the corrugated paperboard passes through the first pre-pressing wheel, flexible contact is formed between the first pre-pressing wheel and the corrugated paperboard.

3. The wire crimping and grooving device according to claim 1, characterized in that: When the corrugated cardboard passes through the second pre-pressing wheel, the plane abuts against the surface of the corrugated cardboard and is used to press the corrugated cardboard; When the corrugated cardboard passes through the creasing wheel, the flange abuts against the surface of the corrugated cardboard and is used to bend the corrugated cardboard; The first arc surface and the second arc surface are both used to support the corrugated paperboard so that the corrugated paperboard moves along a first direction in a preset first situation; The first direction is a direction from the second pre-pressing wheel toward the pressing wheel.

4. The wire crimping and grooving device according to claim 3, characterized in that: Each of the inclined guide surfaces has a first end and a second end opposite to each other in the axial direction of the crimping wheel, and the first end is connected to the second arc surface; The first end has a first radial dimension, the second end has a second radial dimension, and the first radial dimension is greater than the second radial dimension; The oblique guide surface is used to guide the corrugated paperboard after being bent by the flange to move along the second direction in a preset second situation; The second direction is a direction from the first end to the second end.

5. The wire crimping and grooving device according to claim 3, characterized in that: The slotted wheel assembly comprises: a first slotting wheel, a second slotting wheel, a first paper picking knife and a second paper picking knife; The first slotted wheel and the second slotted wheel are respectively arranged on two opposite sides of the crimping wheel in the first direction, and the first slotted wheel is located between the crimping wheel and the second pre-pressing wheel; The first paper picking knife is arranged on a side of the first slotting wheel close to the crimping wheel in the first direction; The second paper picking knife is arranged on a side of the second notching wheel away from the crimping wheel in the first direction.

6. The wire crimping and grooving device according to claim 5, characterized in that: The corrugated cardboard may pass through the first pre-pressing wheel, the second pre-pressing wheel, the first notching wheel, the creasing wheel and the second notching wheel in sequence.

7. The wire crimping and grooving device according to claim 5, characterized in that: Also includes: Timing belt; The second pre-pressing wheel, the first slotted wheel, the line pressing wheel and the second slotted wheel are connected by the synchronous belt to form synchronous rotation.

8. The wire crimping and grooving device according to claim 5, characterized in that: A first annular groove is formed on the first slotted wheel, and the first annular groove is coaxial with the first slotted wheel; A second annular groove is formed on the second slotted wheel, and the second annular groove is coaxial with the second slotted wheel; At least a portion of the first paper picking knife is accommodated in the first annular groove, and at least a portion of the second paper picking knife is accommodated in the second annular groove.

9. A corrugated cardboard, characterized in that: include: At least two layers of paperboard and at least one layer of arched board; each layer of the arched board is arranged between two adjacent layers of the paperboard; At least a portion of the arched plate is pressed by the second pre-pressing wheel of the crimping and grooving device according to any one of claims 1 to 8 to form a flat portion; The crimping wheel of the crimping and grooving device can be bent at the flattening portion and at positions corresponding to the paperboard and the flattening portion.

10. The corrugated board according to claim 9, characterized in that The arched plate is composed of a plurality of arched protrusions arranged along the third direction, and each of the arched protrusions has a top and an opening portion opposite to each other in the fourth direction; One of the two adjacent layers of paperboard is bonded to the opening, and the other is bonded to the top; Two adjacent arched protrusions have a preset target distance in the third direction, and a target width of the plane of the second pre-pressing wheel is greater than the target distance; The flat portion and the plane have a shape and size that match each other.

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