CN110253947B - Paperboard creasing device - Google Patents

Abstract

The invention relates to a paperboard creasing device, which comprises a creasing cutter wheel, wherein the creasing cutter wheel comprises a plurality of groups of upper cutter wheels and lower cutter wheels, the upper cutter wheels and the lower cutter wheels are respectively arranged at the upper position and the lower position of an outlet of a paperboard notching device, the upper cutter wheels and the lower cutter wheels are rotationally arranged on respective lifting frames, a lifting mechanism drives the upper cutter wheels and the lower cutter wheels to mutually approach or separate, traction mechanisms are arranged at the positions of a feed inlet and a discharge outlet of the upper cutter wheels and the lower cutter wheels, the traction mechanisms are used for drawing a support plate to move along a creasing opening formed between the upper cutter wheels and the lower cutter wheels, when a paperboard notched by the paperboard notching device is guided into the creasing device, the lifting mechanisms are started to enable the upper cutter wheels and the lower cutter wheels to approach, the traction mechanisms are started, and after the paperboard is pulled or pushed to pass through a folding opening formed between the upper cutter wheels and the lower cutter wheels, creasing operation on the surface of the paperboard, ensuring reliability of creasing the cardboard.

Description

Paperboard creasing device

Technical Field

The invention relates to the technical field of packaging boxes, in particular to a paperboard creasing device.

Background

During the actual processing of the packing box, corrugated paper or coated paper is generally adopted as a production raw material, the paperboard is generally subjected to film covering operation through a film covering machine during the actual processing, a film covering film with brand patterns is covered on the paperboard, the paperboard is generally singly guided out in the actual production process, the single paperboard is guided and conveyed from a guide and conveying crawler belt, blanks of the packing box are finally formed through a film covering device, an opening device and a crease device, then the packing box can be subjected to bottom sealing operation through manual or mechanical modes, and finally the complete packing box capable of containing articles is formed.

Crease machinery to the cardboard in the market has a lot, crease machinery is when implementing the operation to the cardboard crease, require crease machinery to have quick and effectual implementation to the crease operation of cardboard, cardboard after avoiding the crease produces and resets, thereby lead to the not good problem of crease effect, cardboard crease equipment among the prior art is when implementing the operation to the cardboard crease, crease efficiency is lower, when crease quantity is more on to the cardboard, the straightness accuracy of the crease that can't accomplish, and then the crease effect that leads to the cardboard is relatively poor.

Disclosure of Invention

The invention aims to provide a paperboard creasing device which can ensure the creasing efficiency of paperboards, and can ensure the straightness of creases and the creasing effect.

The technical scheme adopted by the invention is as follows.

The utility model provides a cardboard crease device, includes the crease break bar, the crease break bar includes break bar and lower break bar in the multiunit, go up break bar and lower break bar branch and put position about the export of cardboard notching device, go up break bar and lower break bar rotation type setting in respective elevating system frame, the break bar is close to or keeps away from each other in the elevating system drive and lower break bar, and the feed inlet and the discharge gate position that are located break bar and lower break bar are provided with drive mechanism, and drive mechanism is used for drawing the crease opening removal that the cardboard constitutes between break bar and the lower break bar along last break bar.

The invention has the technical effects that: when the paperboard after being cut by the paperboard cutting device is guided into the crease device, the lifting mechanism is started, the upper cutter wheel is close to the lower cutter wheel, the traction mechanism is started, and after the paperboard is pulled or pushed to pass through a folding opening formed between the upper cutter wheel and the lower cutter wheel, crease operation on the surface of the paperboard can be realized, and the reliability of the paperboard crease is ensured.

Drawings

FIG. 1 is a schematic view of a flat sheet of paperboard;

FIG. 2 is a schematic end view of the paperboard in a folded configuration;

fig. 3 to 5 are schematic views of three viewing angle structures of the creasing device;

FIG. 6 is a front view of the creasing device;

FIG. 7 is a left side view of the creasing device;

figures 8-10 are schematic views of three views of the creasing device moving out of the pulling mechanism;

FIG. 11 is a front view of the creasing device;

fig. 12 is a left side view of the creasing device removed from the pulling mechanism.

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the invention will now be described in detail with reference to the following examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed. As used herein, the terms "parallel" and "perpendicular" are not limited to their strict geometric definitions, but include tolerances for machining or human error, legibility and inconsistency; the specific features of the cardboard creasing device are explained in detail below:

when the packaging box paperboard is in an actual deep mountain, the packaging box raw material paperboard is neatly stacked in the paperboard guiding device, the paperboard raw material can be guided into the paperboard cutting device singly and discontinuously by the paperboard guiding device, the specific structure of the paperboard guiding device is a common paperboard separator in the market, and the paperboard raw material can be guided into each device in a subsequent production line discontinuously and singly;

the paperboard cutting device carries out buckling operation on the raw material paperboard, an opening convenient for crease is formed in one end of the raw material paperboard so as to facilitate subsequent crease operation, and a position convenient for packing box back cover is reserved so as to ensure the reliability of the packing box back cover; the paperboard cutting device cuts the paperboard and guides the cut paperboard into the crease device for crease operation, so that all creases of the packaging box are formed, the raw paperboard of the packaging box after the creases is guided into the paperboard folding device, the raw paperboard is folded into the paperboard in a pressing state and guided out, the problem of rebounding caused by incomplete creases is avoided, the paperboard folding machine can perform compaction action through the paperboard folding box, the integrity of the formed packaging box is ensured, the folded paperboard is provided with a threading hole at the position of the folding crease of the paperboard through the opening device, namely the opening, and then a threading device is used for threading a tape in the threading hole, wherein the strapping tape can be a specially-made high polymer flexible thread rope, so that the strapping effect on the packaging box can be effectively realized;

as shown in fig. 2, the opening device for opening holes at the folding lines of the cardboard is started after the cardboard is folded, so that the threading position of the threading holes can be ensured, and the subsequent threading operation of the threading device is very convenient;

the specific features of the creasing device 30 are described in detail below with reference to figures 3 to 12:

the creasing device 30 comprises a creasing knife wheel connected with an outlet of the paperboard slitting device, the creasing knife wheel comprises a plurality of groups of upper knife wheels 31 and lower knife wheels 32, the upper knife wheels 31 and the lower knife wheels 32 are respectively arranged at the upper and lower positions of the outlet of the paperboard slitting device, the upper knife wheels 31 and the lower knife wheels 32 are rotatably arranged on respective lifting frames, the lifting mechanisms drive the upper knife wheels 31 and the lower knife wheels 32 to be close to or far away from each other, and traction mechanisms are arranged at positions of feed inlets and discharge outlets of the upper knife wheels 31 and the lower knife wheels 32 and are used for drawing the paperboard to move along a creasing opening formed between the upper knife wheels 31 and the lower knife wheels 32;

when the paperboard after being cut by the paperboard cutting device is guided into the creasing device 30, the lifting mechanism is started, the upper cutter wheel 31 is close to the lower cutter wheel 32, the traction mechanism is started, and after the paperboard is pulled or pushed to pass through a folding opening formed between the upper cutter wheel 31 and the lower cutter wheel 32, creasing operation on the surface of the paperboard can be realized, and reliability of creasing of the paperboard is ensured.

Referring to fig. 5 and 12, as a preferred embodiment of the present invention, the centers of the upper knife flywheel 31 and the lower knife flywheel 32 are horizontal and perpendicular to the outlet direction of the cardboard cutting device, and the projections of the upper knife flywheel 31 and the lower knife flywheel 32 on the plumb surface are arranged in a staggered manner;

combine fig. 1 and fig. 2 to show, the durian packing carton includes the crease of four different types at least, is crease a, crease b, crease c and crease d respectively, crease a and crease b are respectively along cardboard width direction interval arrangement, crease c is located between crease a and the crease b and the crease opposite direction to make the cardboard can form triangular accommodation area, crease d keeps away from crease a, crease b and crease c, and the crease direction of crease d is unanimous with the direction of crease c, thereby can constitute the bounding wall of packing carton, equidistant along the length direction interval arrangement of cardboard of foretell crease a, crease b, crease c and crease d, so that the terminal surface state of the final crease of cardboard is as shown in fig. 2;

therefore, the upper knife flywheel 31 is used for implementing the forming operation of the crease a and the crease b, the lower knife flywheel 32 is used for implementing the forming operation of the crease d, and the forming operation of the crease c is described in detail later; when the projections of the upper cutter wheel 31 and the lower cutter wheel 32 in the plumb surface are arranged in a staggered manner, the paperboard can be creased after passing through the channel formed by the upper cutter wheel 31 and the lower cutter wheel 32.

In order to realize synchronous approaching or separating of the upper knife flywheel 31 and the lower knife flywheel 32, the lower knife flywheel 32 is connected with a lifting mechanism, and the lifting mechanism drives the lower knife flywheel 32 to lift in the vertical direction and approach or separate from the upper knife flywheel 31;

treat when cardboard one end of crease operation is close to last break bar 31 and lower break bar 32 below position, start elevating system, make the synchronization of going up break bar 31 and lower break bar 32 be close to, and start drive mechanism and implement the traction or the propelling movement to cardboard one end, make the last face of cardboard and the rim of last break bar 31 support and lean on, can form a recess, make lower break bar 32 support and lean on with the lower face of cardboard, can form another recess, drive mechanism is under the effect, can make the cardboard form a plurality of recesses, the recess extends along the width direction of cardboard, thereby can form the crease at the last face of cardboard or lower face, make things convenient for subsequent folding operation, avoid the bounce-back of cardboard crease thickness.

Further, the lifting mechanism drives the plurality of groups of lower knife wheels 32 to sequentially lift along the vertical direction of the outlet of the paperboard notching device;

since the size of the cardboard in the width direction is reduced by the crease of the cardboard when the cardboard is creased, if the traction mechanism drives the cardboard to move along the channel formed between the upper knife flywheel 21 and the lower knife flywheel 32, the width direction of the cardboard contracts, and the position where the lower knife flywheel 32 abuts against the upper plate surface of the cardboard and the position where the lower knife flywheel 32 abuts against the lower plate surface of the cardboard are displaced, so that the position of the cardboard crease is not accurate or the crease is bent, and the crease is not straight, the lower knife flywheel 32 is arranged at intervals along the outlet width direction of the cardboard cutting device, so that the lower knife flywheel 32 can be sequentially contacted with the lower plate surface of the cardboard, and the size along the width direction is not greatly changed, after the lower knife flywheel 32 rises, the upper knife flywheel 21 descends, and the rim of the upper knife flywheel 21 abuts against the upper plate surface of the cardboard, under the traction force of the traction mechanism, the paper board is enabled to move along the channel formed between the lower cutter wheel 32 and the upper cutter wheel 21, and then the creasing operation of the paper board is realized.

In order to support the paperboard, as shown in fig. 3 to 5, a first pressure plate 33 is arranged above the lower cutter wheel 32, the longitudinal direction of the first pressure plate 33 is horizontal and parallel along the moving direction of the paperboard, a second pressure plate 34 is arranged below the upper cutter wheel 31, the second pressure plate 34 is parallel to the first pressure plate 33, and the first pressure plate 33 and the second pressure plate 34 are arranged at intervals and form a channel for guiding out the paperboard;

the lifting mechanism is started, so that the lower knife flywheel 32 rises, the rim of the lower knife flywheel 32 is abutted to the first pressing plate 33, the support of the paperboard is realized, the upper knife flywheel 31 descends, the rim of the lower knife flywheel 32 is abutted to the second pressing plate 34, the support of the paperboard is realized, and the traction force of the traction mechanism is acted so as to realize the passage of the paperboard in the crease channel formed between the lower knife flywheel 32 and the upper knife flywheel 21, the crease operation of the paperboard is realized, and the reliability of the crease operation is ensured.

Further, as shown in fig. 5 and 8, a first forming groove 331 is formed in a lower plate surface of the first pressing plate 33, a length direction of the first forming groove 331 is parallel to the first pressing plate 33, a second forming groove 341 is formed in an upper plate surface of the second pressing plate 34, a length direction of the second forming groove 341 is parallel to the second pressing plate 34, cross sections of the first forming groove 331 and the second forming groove 341 are "V" shaped, and the first pressing plate 33 and the second pressing plate 34 arc-shaped and extend upward and downward near an outlet end of the paperboard cutting device;

when the lower knife flywheel 32 rises, the rim of the lower knife flywheel 32 is clamped in the first forming groove 331 of the first pressure plate 33 to realize the forming operation of the crease c and the crease d of the paperboard, when the upper knife flywheel 21 falls, the rim of the upper knife flywheel 21 is clamped in the second forming groove 341 of the second pressure plate 34 to further realize the forming operation of the crease a and the folding cross b of the upper surface of the paperboard, and the cross sections of the first forming groove 331 and the second forming groove 341 are in a V shape and are matched with the cross section profiles of the rims of the lower knife flywheel 32 and the upper knife flywheel 21, so that the crease can be effectively formed, and the effectiveness of crease forming is ensured.

Further, the lower cutter wheel 32 is rotatably arranged on a first wheel carrier 321, a first support sliding rod 322 extends vertically and downwards from the first wheel carrier 321, the first support sliding rod 322 vertically slides on the lower frame 323, and the lifting mechanism drives the first support sliding rod 322 to vertically move;

when the lower knife flywheel 32 is driven to vertically lift, the first supporting sliding rod 322 vertically moves upwards along the lower frame 323, and the first wheel frame 321 and the lower knife flywheel 32 on the first wheel frame 321 are linked to synchronously move upwards, so that the paperboard is abutted to form the crease c and the crease d.

With reference to fig. 8 to 10, in order to vertically lift the first supporting slide bar 322, a first driving roller 324 is disposed at a lower end of the first supporting slide bar 322, the first driving roller 324 abuts against a lifting driving fin 325, the lifting driving fin 325 is disposed on a lifting rod 326 at intervals, a rotating mechanism drives the lifting rod 326 to rotate, and a length direction of the lifting rod 326 is horizontal and parallel to a wheel core of the lower cutter wheel 32;

by rotating the lifting rod 326, the lifting driving fin 325 on the rod body of the lifting rod 326 synchronously rotates, when the lifting driving fin 325 rotates, the first driving roller 324 is linked to lift upwards, so that the first supporting slide rod 322 is lifted upwards to realize the driving action on the first driving roller 324, and in the lifting process of the lifting driving fin 325, the first supporting slide rod 332 is linked to lift upwards to realize the vertical driving on the lower cutter wheel 32, when the lower cutter wheel 32 is driven to a high position, the rim of the lower cutter wheel 32 is abutted against the first forming groove 331 arranged on the lower plate surface of the first pressure plate 33, and under the action of the traction force of the traction mechanism, the creasing operation on the paperboard is realized.

A first supporting spring 327 is sleeved on the first supporting slide bar 322, and two ends of the first supporting spring 327 respectively abut against the lower frame 323 and the first driving roller 324;

as shown in fig. 12, when the lifting rod 326 is rotated, the lifting driving fin 325 on the lifting rod 326 is synchronously rotated, so that the first supporting slide rod 322 extends vertically upwards along the lower frame 323 and compresses the first supporting spring 327, so that the lower cutter wheel 32 approaches the lower plate surface of the first pressing plate 33 to perform a pressing operation on the paperboard, and after the lifting rod 326 stops rotating, the lower cutter wheel 32 descends and bottoms out under the elastic force of the first supporting spring 327, so as to facilitate the normal passage of the paperboard.

Further, as shown in fig. 10 and 12, the driving fin 325 is arranged at intervals along the length direction of the lifting rod 326, an included angle between the plate surface of the driving fin 325 and the horizontal plane gradually decreases, an extending end of the driving fin 325 is provided with an avoiding circular tube 3251, and the length direction of the avoiding circular tube 3251 is parallel to the lifting rod 326;

the included angle between the surface of the driving fin plate 325 and the horizontal plane is gradually reduced, the included angle can be observed along the end surface of the lifting rod 326, and a certain deflection angle exists between the driving fin plates 325, so that the driving fins 325 are radially distributed along the end surface projection direction of the lifting rod 326, and in the rotating process of the lifting rod 326, the driving fin plates 325 on the rod body of the lifting rod 326 are contacted with the first driving roller 324 one by one, so that the lower cutter wheel 32 positioned below is gradually lifted to a high point position along the length direction of the lifting rod 326, and further the gradual pressing operation on the lower surface of the paperboard is realized, and the problem that the indentation is not straight due to the paperboard pressing is effectively avoided;

as shown in fig. 12, the extending end of the driving fin 325 is provided with an avoiding circular tube 3251, when the driving fin 325 rotates, and the avoiding circular tube 3251 abuts against the rim of the first driving roller 324, the surface of the arc circular tube of the avoiding circular tube 3251 is coaxially arranged with the rod core of the lifting rod 326, and further in the rotating process of the driving fin 325, the first driving roller 324 is kept stable, the problem of up-and-down movement of the first driving roller 324 is avoided, the problem of further rising of the lower cutter wheel 32 due to the rotation of the lifting rod 326 is avoided, the extrusion reliability of the lower plate surface of the lower cutter wheel 32 and the lower paper plate is ensured, and the problem of damage of the paper plate caused by excessive extrusion of the lower cutter wheel 32 is avoided.

Further, as shown in fig. 10, in order to realize the forming operation of the fold c of the raw material paperboard, a central knife wheel 35 is further disposed between adjacent lower knife wheels 32, the central knife wheel 35 is rotatably disposed on a second wheel carrier 351, a second support slide bar 352 vertically extends downward from the second wheel carrier 351, a lower end of the second support slide bar 352 is hinged to one end of a first link 353, the second support slide bar 352 is slidably disposed on the lower frame 323, the other end of the first link 353 is hinged to one end of a second link 354, the second link 354 is equally spaced along the length direction of the lifting rod 326, the rod length direction of the second link 354 is perpendicular to the lifting rod 326, and hinge shafts at two ends of the first link 353 are parallel to the lifting rod 326;

the fold c is positioned between the fold a and the fold b, when the lifting rod 326 rotates, the second connecting rod 354 is linked to swing, when the second connecting rod 354 swings, the first connecting rod 353 swings, when the first connecting rod 353 swings, the second supporting slide bar 352 is linked to vertically lift along the lower rack 323, so that the central knife flywheel 35 vertically lifts, when the central knife flywheel 35 lifts to a high position, the rim of the central knife flywheel 35 abuts against the lower plate surface of the paperboard, and under the action of the traction force of the traction mechanism, the forming operation of the fold c of the paperboard is realized;

the second link 354 is positioned on the lift bar 326, the second link 354 is positioned in relation to the drive fin 325, and the length of the first link 353 is set so that the lower cutter wheel 32 can first abut against the lower panel of the cardboard, and then after the last lower cutter wheel 32 is fully abutted against the lower panel of the cardboard, the center cutter wheel 35 is raised to just abut the rim of the center cutter wheel 35 against the lower panel of the cardboard.

Further, a second support spring 355 is sleeved on the second support sliding rod 352, two ends of the second support spring 355 respectively abut against the lower frame 323 and the rod end of the second support sliding rod 352, and the height of the upper end rim of the central cutter wheel 35 is lower than that of the upper end rim of the lower cutter wheel 32;

as shown in fig. 10, when the second link 354 swings to link the first link 353 to swing, the second support spring 355 is compressed, so that the central knife flywheel 35 rises, and after the paperboard creasing operation is completed, the central knife flywheel 35 is reset and falls under the action of the elastic reset force of the second support spring 355, so that the paperboard is avoided, and the paperboard after the creasing operation can be smoothly led out.

As shown in fig. 10, further, the upper cutter wheel 31 is rotatably disposed on the third wheel frame 311, a third supporting slide rod 312 is vertically disposed upward on the third wheel frame 311, the third supporting slide rod 312 slidably extends out of the upper frame 36, an upper end of the third supporting slide rod 312 extending out of the upper frame 36 is connected to the elevator frame 37, the elevator frame 37 is hinged to a first elevating link 371, another end of the first elevating link 371 is hinged to one end of a second elevating link 372, another end of the second elevating link 372 is fixed to an elevating rod 326, and the elevating rod 326 is perpendicular to the second elevating link 372;

when the in-process of rotating lifter 326, second lifting connecting rod 372 on interlock lifter 326 produces the swing, when second lifting connecting rod 372 produces the swing, first lifting connecting rod 371 of interlock produces the swing, first lifting connecting rod 371 makes elevator frame 37 produce the lift action of vertical direction, elevator frame 37 lift action, make last break bar 31 produce the lift of vertical direction, thereby realize leaning on or keeping away from to the face on the cardboard, when last break bar 31 supports with the last face of cardboard and leans on, under drive mechanism's effect, can be to the shaping operation of crease a and crease b.

As shown in fig. 12, as a preferred embodiment of the present invention, the third wheel frame 311 is slidably disposed on a third supporting slide bar 312, a third supporting spring 313 is sleeved on the third supporting slide bar 312, and two ends of the third supporting spring 313 respectively abut against the third wheel frame 311 and the upper frame 36;

make upper cutter wheel 31 slide and set up on third support slide bar 312, rotate and the in-process that cutter wheel 31 descends in the drive when lifter 326, can make upper cutter wheel 31 realize that the elasticity to the cardboard upper plate supports and leans on, and then avoid producing damaged problem because the cardboard that upper cutter wheel 31 leads to the elastic extrusion of cardboard to the lifter 326 turned angle that forms is too much dodges.

In order to reset the upper cutter wheel 31, a fourth supporting spring 314 is sleeved on the third supporting slide bar 312 extending out of the upper frame 36, and two ends of the fourth supporting spring 314 respectively abut against the upper frame 36 and the lifting frame 37;

when the paper board is dragged or dragged forwards by the traction mechanism, after the creasing operation of the paper board is completed, the third support slide bar 312 can be lifted vertically upwards under the action of the elastic force of the fourth support spring 314, and then the upper cutter wheel 31 is reset.

Further, the traction mechanism comprises a first traction roller 38 and a second traction roller 39 which are arranged at the outlet position of the paperboard notching device and the outlet position of the creasing device 30 in the vertical direction, the roller length directions of the first traction roller 38 and the second traction roller 39 are horizontal and vertical to the paperboard discharging direction, two ends of the first traction roller 38 are rotatably arranged on the lifting frame 381, two ends of the second traction roller 39 are rotatably arranged on the fixing frame 391, the driving mechanism drives the second traction roller 39 to rotate, a lifting cylinder 382 is arranged above the first traction roller 38, and a piston rod of the lifting cylinder 382 drives the lifting frame 381 to move up and down and enables the first traction roller 38 and the second traction roller 39 to be close to or far away from each other;

when the lifting rod 326 rotates, so that the lower knife flywheel 32, the upper knife flywheel 31 and the central knife flywheel 35 are abutted to the lower plate surface and the upper plate surface of the paperboard, the traction mechanism is started, the traction mechanism located at the position of the plate cutting device 20 can be started firstly, when the second traction roller 38 and the second traction roller 39 are close to each other, the paper dragging plate passes through the creasing device 30, crease operation on the paperboard is realized, after one end of the paperboard extends out of the outlet position of the creasing device 30, the traction device located at the outlet position of the creasing device 30 is started, dragging of the paperboard is realized, the paperboard is dragged, crease operation on the paperboard is realized, and reliability of crease of the paperboard is ensured.

The creasing method of the packaging board will be described in detail below, and comprises the following steps:

A. preparing materials, stacking paper board raw materials with consistent length and width dimensions together and guiding the paper board raw materials into paper board guiding equipment, so that the paper boards are guided into positioning equipment in a single paper board mode;

B. positioning the exported single paperboard by using positioning equipment, and then opening the paperboard by using opening equipment so as to facilitate subsequent crease operation;

C. positioning the opened paperboard, determining the position of the paperboard, and starting an upper knife flywheel 31 and a lower knife flywheel 32 at the upper and lower positions of the paperboard to enable the upper knife flywheel 31 to be abutted against the upper board surface of the paperboard and the lower knife flywheel 32 to be abutted against the lower board surface of the paperboard;

D. the creasing operation of the cardboard is realized by pulling the front end of the cardboard and/or pushing the rear end of the cardboard, so that the cardboard passes along the cardboard channel formed by the upper knife wheel 31 and the lower knife wheel 32;

E. after the paper board passes through the channel formed by the upper cutter wheel 31 and the lower cutter wheel 32, the paper board is overlapped and extruded, and the problem that the crease of the paper board rebounds is avoided.

In the step B, when the upper cutter wheel 31 and the lower cutter wheel 32 are used for pressing the paper boards, a plurality of the lower cutter wheels 32 are arranged at intervals along the length direction of the paper boards, the lower cutter wheels 32 sequentially ascend along the length direction of the paper boards and abut against the lower board surfaces of the paper boards, and after all the lower cutter wheels 32 abut against the lower board surfaces of the paper boards, the upper cutter wheel 31 descends and abuts against the upper board surfaces of the paper boards.

In the step E, when the folding operation of the cardboard after folding is performed, the holding mechanism is used to hold both ends of the cardboard, and then the cord is moved up and down to place the cord in the folding of the cardboard, and the cord is moved up and down to bend the folding at a certain angle, and then the folding mechanism is started to fold the cardboard.

In the step D, when performing the creasing operation on the cardboard, the rear end of the cardboard is pushed first, and after the front end of the cardboard is extended out of one end, the front end of the cardboard is pulled, so that the cardboard is provided with the channel formed by the upper cutter wheel 31 and the lower cutter wheel 32.

The wheel cores of the upper knife flywheel 31 and the lower knife flywheel 32 are horizontal and vertical to the outlet direction of the paperboard notching device, and the projections of the upper knife flywheel 31 and the lower knife flywheel 32 in the plumb surface are arranged in a staggered mode.

The lower knife flywheel 32 is connected with a lifting mechanism, and the lifting mechanism drives the lower knife flywheel 32 to lift in the vertical direction and to be close to or far away from the upper knife flywheel 31; the lifting mechanism drives the sets of lower cutter wheels 32 to sequentially lift along the vertical direction of the outlet of the paperboard slitting device.

A first pressure plate 33 is arranged above the lower knife flywheel 32, the plate length direction of the first pressure plate 33 is horizontal and parallel along the moving direction of the paperboard, a second pressure plate 34 is arranged below the upper knife flywheel 31, the second pressure plate 34 is parallel to the first pressure plate 33, and the first pressure plate 33 and the second pressure plate 34 are arranged at intervals and form a channel for guiding out the paperboard; the lower plate surface of the first pressing plate 33 is provided with a first forming groove 331, the length direction of the first forming groove 331 is parallel to the first pressing plate 33, the upper plate surface of the second pressing plate 34 is provided with a second forming groove 341, the length direction of the second forming groove 341 is parallel to the second pressing plate 34, the cross sections of the first forming groove 331 and the second forming groove 341 are V-shaped, and the outlet ends of the first pressing plate 33 and the second pressing plate 34, which are close to the paperboard notching device, respectively extend upwards and downwards in an arc shape.

The lower knife flywheel 32 is rotatably arranged on a first wheel frame 321, a first support sliding rod 322 vertically extends downwards on the first wheel frame 321, the first support sliding rod 322 vertically slides on a lower rack 323, and a lifting mechanism drives the first support sliding rod 322 to vertically move; the lower end of the first support sliding rod 322 is provided with a first driving roller 324, the first driving roller 324 abuts against a lifting driving fin plate 325, the lifting driving fin plate 325 is arranged on a lifting rod 326 at intervals, a rotating mechanism drives the lifting rod 326 to rotate, and the length direction of the lifting rod 326 is horizontal and parallel to the wheel core of the lower cutter wheel 32.

A first supporting spring 327 is sleeved on the first supporting slide bar 322, and two ends of the first supporting spring 327 respectively abut against the lower frame 323 and the first driving roller 324; the driving fin plate 325 is arranged along the length direction of the lifting rod 326 at intervals, an included angle between the plate surface of the driving fin plate 325 and the horizontal plane is gradually reduced, the extending end of the driving fin plate 325 is provided with an avoiding circular tube 3251, and the length direction of the avoiding circular tube 3251 is parallel to the lifting rod 326.

A central knife flywheel 35 is further arranged between the adjacent lower knife flywheel 32, the central knife flywheel 35 is rotatably arranged on a second wheel frame 351, a second supporting slide bar 352 vertically extends downwards on the second wheel frame 351, the lower end of the second supporting slide bar 352 is hinged with one end of a first connecting bar 353, the second supporting slide bar 352 is slidably arranged on the lower rack 323, the other end of the first connecting bar 353 is hinged with one end of a second connecting bar 354, the second connecting bars 354 are arranged at equal intervals along the length direction of the lifting rod 326, the length direction of the second connecting bars 354 is perpendicular to the lifting rod 326, and the hinge shafts at the two ends of the first connecting bar 353 are parallel to the lifting rod 326; the second support sliding rod 352 is sleeved with a second support spring 355, two ends of the second support spring 355 respectively abut against the lower frame 323 and the rod end of the second support sliding rod 352, and the height of the upper end rim of the central cutter wheel 35 is lower than that of the upper end rim of the lower cutter wheel 32.

Claims (7)

1. A cardboard creasing device, characterized in that: the paper board cutting device comprises a crease knife flywheel, wherein the crease knife flywheel comprises a plurality of groups of upper knife flywheel (31) and lower knife flywheel (32), the upper knife flywheel (31) and the lower knife flywheel (32) are respectively arranged at the upper position and the lower position of an outlet of a paper board cutting device, the upper knife flywheel (31) and the lower knife flywheel (32) are rotatably arranged on respective lifting frames, the lifting mechanisms drive the upper knife flywheel (31) and the lower knife flywheel (32) to be close to or far away from each other, and traction mechanisms are arranged at positions of a feed inlet and a discharge outlet of the upper knife flywheel (31) and the lower knife flywheel (32) and are used for drawing the paper board to move along a crease opening formed between the upper knife flywheel (31) and the lower knife flywheel (32);

the wheel cores of the upper knife flywheel (31) and the lower knife flywheel (32) are horizontal and vertical to the outlet direction of the paperboard notching device, and the projections of the upper knife flywheel (31) and the lower knife flywheel (32) in the plumb surface are arranged in a staggered mode;

the lower knife flywheel (32) is connected with a lifting mechanism, and the lifting mechanism drives the lower knife flywheel (32) to lift in the vertical direction and to be close to or far away from the upper knife flywheel (31); the lifting mechanism drives a plurality of groups of lower knife wheels (32) to sequentially lift along the vertical direction of the outlet of the paperboard notching device;

a first pressure plate (33) is arranged above the lower knife flywheel (32), the plate length direction of the first pressure plate (33) is horizontal and parallel along the moving direction of the paperboard, a second pressure plate (34) is arranged below the upper knife flywheel (31), the second pressure plate (34) is parallel to the first pressure plate (33), and the first pressure plate (33) and the second pressure plate (34) are arranged at intervals and form a channel for guiding out the paperboard; the paperboard cutting device is characterized in that a first forming groove (331) is formed in the lower plate surface of the first pressure plate (33), the length direction of the first forming groove (331) is parallel to the first pressure plate (33), a second forming groove (341) is formed in the upper plate surface of the second pressure plate (34), the length direction of the second forming groove (341) is parallel to the second pressure plate (34), the cross sections of the first forming groove (331) and the second forming groove (341) are V-shaped, and the outlet ends, close to the paperboard cutting device, of the first pressure plate (33) and the second pressure plate (34) extend upwards and downwards in an arc shape respectively.

2. The paperboard creasing device of claim 1, wherein: the lower cutter wheel (32) is rotatably arranged on a first wheel carrier (321), a first supporting slide rod (322) vertically extends downwards on the first wheel carrier (321), the first supporting slide rod (322) vertically slides on a lower rack (323), and a lifting mechanism drives the first supporting slide rod (322) to vertically move; the lower extreme of first support slide bar (322) sets up first drive roller (324), first drive roller (324) support with lift drive fin board (325) and lean on, lift drive fin board (325) interval sets up on lifter (326), and slewing mechanism drive lifter (326) rotate, lifter (326) length direction level just is parallel with the wheel core of lower break bar (32).

3. The paperboard creasing device of claim 2, wherein: a first supporting spring (327) is sleeved on the first supporting sliding rod (322), and two ends of the first supporting spring (327) are respectively abutted against the lower frame (323) and the first driving roller (324); drive finned plate (325) are arranged along lifter (326) length direction interval, the contained angle between drive finned plate (325) face and the horizontal plane diminishes gradually, the extension end of drive finned plate (325) is provided with dodges pipe (3251), the length direction who dodges pipe (3251) is parallel with lifter (326).

4. A paperboard creasing device according to claim 3, wherein: a central knife flywheel (35) is further arranged between the adjacent lower knife flywheel (32), the central knife flywheel (35) is rotatably arranged on a second wheel carrier (351), a second supporting slide rod (352) vertically and downwardly extends on the second wheel carrier (351), the lower end of the second supporting slide rod (352) is hinged with one end of a first connecting rod (353), the second supporting slide rod (352) is slidably arranged on a lower rack (323), the other end of the first connecting rod (353) is hinged with one end of a second connecting rod (354), the second connecting rods (354) are arranged at equal intervals along the length direction of the lifting rod (326), the length direction of the second connecting rod (354) is perpendicular to the lifting rod (326), and hinged shafts at two ends of the first connecting rod (353) are parallel to the lifting rod (326); the second supporting slide bar (352) is sleeved with a second supporting spring (355), two ends of the second supporting spring (355) are respectively abutted against the lower rack (323) and the rod end of the second supporting slide bar (352), and the height of the upper end wheel rim of the central knife flywheel (35) is lower than that of the upper end wheel rim of the lower knife flywheel (32).

5. The paperboard creasing device of claim 4, wherein: go up break bar (31) rotary type setting on third wheel carrier (311), vertical upwards being provided with third support slide bar (312) on third wheel carrier (311), third support slide bar (312) slides and stretches out frame (36), the third supports the upper end that slide bar (312) stretched out frame (36) and is connected with elevator frame (37), elevator frame (37) are articulated with first lift connecting rod (371), the other end of first lift connecting rod (371) is articulated with the one end of second lift connecting rod (372), the other end of second lift connecting rod (372) is fixed on lifter (326), lifter (326) are perpendicular with second lift connecting rod (372).

6. The paperboard creasing device of claim 5, wherein: the third wheel carrier (311) is arranged on a third supporting slide bar (312) in a sliding manner, a third supporting spring (313) is sleeved on the third supporting slide bar (312), and two ends of the third supporting spring (313) are respectively abutted against the third wheel carrier (311) and the upper frame (36); the third supporting sliding rod (312) extends out of the upper rack (36) and is sleeved with a fourth supporting spring (314), and two ends of the fourth supporting spring (314) are respectively abutted against the upper rack (36) and the lifting rack (37).

7. The paperboard creasing device of claim 6, wherein: draw gear is including setting up first, second carry over pinch rolls (38, 39) of direction about the exit position of cardboard notching device and crease device (30) exit position, the long direction level of the roller of first, second carry over pinch rolls (38, 39) just is perpendicular with cardboard ejection of compact direction, the both ends rotary type of first carry over pinch roll (38) sets up on crane (381), the both ends rotary type of second carry over pinch roll (39) sets up on mount (391), and actuating mechanism drive second carry over pinch roll (39) rotate, first carry over pinch roll (38) top is provided with lift cylinder (382), the piston rod drive crane (381) of lift cylinder (382) reciprocate and make first carry over pinch roll (38) be close to or keep away from with second carry over pinch roll (39).

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