CN218315552U - Multi-stage stretching honeycomb paperboard production equipment - Google Patents

Abstract

The application discloses a multi-stage stretching honeycomb paperboard production device, which comprises a paper core production device, a first traction device, a second traction device and a third traction device; the traction speed of the second traction device is greater than that of the first traction device, and the second traction device can pull the honeycomb core between the first traction device and the second traction device so that the honeycomb holes on the honeycomb core are unfolded from the closed state; the traction speed of the third traction device is greater than that of the second traction device, and the third traction device can further pull the honeycomb core open, so that the honeycomb holes on the honeycomb core are expanded to a greater extent; through addding draw gear, stretch many times, on the one hand, can hierarchical control speed, avoid the speed difference between two adjacent draw gear too big, existing tape transport tension and the tape transport stability that do benefit to the honeycomb core are favorable to again that honeycomb holes in every tensile stage expand the design, can avoid tensile inefficacy.

Description

Multi-stage stretching honeycomb paperboard production equipment

Technical Field

The application relates to the technical field of honeycomb paperboard production equipment, in particular to multistage stretching honeycomb paperboard production equipment.

Background

When the honeycomb paperboard is prepared, the honeycomb core needs to be pulled open, and in the process of pulling and bracing the honeycomb core, the honeycomb core can generate huge retraction force, so that the core hole cannot be completely pulled open.

Conventional stretching equipment pulls once through the powerful and pulls open honeycomb core more, and tensile burden is big, and honeycomb holes design effect is poor.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a multi-stage stretching honeycomb paperboard production device.

In order to achieve the above technical object, the present application provides a multi-stage stretching honeycomb paperboard production apparatus, comprising: the paper core production device is used for outputting honeycomb cores; the first traction device is arranged at the downstream of the paper core production device and is used for traction the honeycomb core output by the paper core production device so as to facilitate the downstream movement of the honeycomb core; the second traction device is arranged at the downstream of the first traction device and is used for drawing the honeycomb core output by the first traction device so as to facilitate the downstream movement of the honeycomb core; the third traction device is arranged at the downstream of the second traction device and is used for drawing the honeycomb core output by the second traction device so as to facilitate the downstream movement of the honeycomb core; the traction speed of the second traction device is higher than that of the first traction device, and the traction speed of the third traction device is higher than that of the second traction device.

Further, the first traction device, the second traction device or the third traction device includes: the honeycomb core is wound by the first driving roller; and the traction driving piece is used for driving the first driving roller to rotate.

Further, the first traction device, the second traction device or the third traction device further comprises a second driving roller, the second driving roller abuts against the first driving roller, and the second driving roller and the first driving roller can be matched to clamp the honeycomb core.

Further, the multistage stretching honeycomb paperboard production equipment further comprises a paper core conveying device, wherein the paper core conveying device is arranged at the downstream of the paper core production device and at the upstream of the first traction device and is used for receiving the honeycomb cores output by the paper core production device and conveying the honeycomb cores to the first traction device.

Further, the paper core conveying device adopts a conveying belt, and the conveying surface of the conveying belt gradually rises from the paper core production device to the first traction device.

Further, the multistage stretching honeycomb paperboard production equipment also comprises a first oven, and the first oven is arranged at the downstream of the paper core production device and used for drying the honeycomb core.

Further, the third traction device is arranged in the first oven, and the first oven can be used for shaping the stretched honeycomb core.

Further, the multistage drawing honeycomb paperboard production equipment further comprises: the facial tissue unwinding device is used for outputting facial tissue; the bottom paper unwinding device is used for outputting bottom paper; the glue coating device is used for coating glue on the surface paper, the bottom paper and/or the honeycomb core; and the pressing device is arranged at the downstream of the gluing device and is used for pressing the surface paper, the honeycomb core and the bottom paper so as to be bonded together.

Furthermore, a fourth traction device is arranged in the gluing device, and the traction speed of the fourth traction device is greater than that of the third traction device.

Furthermore, the multistage stretching honeycomb paperboard production equipment also comprises a second oven, wherein the second oven is arranged at the downstream of the pressing device and is used for curing glue for bonding the surface paper, the honeycomb cores and the bottom paper.

The application provides a multi-stage stretching honeycomb paperboard production device which comprises a paper core production device, a first traction device, a second traction device and a third traction device; the traction speed of the second traction device is greater than that of the first traction device, and the second traction device can pull the honeycomb core between the first traction device and the second traction device so that the honeycomb holes on the honeycomb core are unfolded from the closed state; the traction speed of the third traction device is greater than that of the second traction device, and the third traction device can further pull the honeycomb core open, so that the honeycomb holes on the honeycomb core are expanded to a greater extent; by additionally arranging the traction devices and stretching for multiple times, on one hand, the speed can be controlled in a grading manner, the overlarge speed difference between two adjacent traction devices is avoided, and therefore, the honeycomb holes in the honeycomb core can be gradually enlarged through stretching for multiple times, the retraction force can be favorably counteracted, and the stable tension of the honeycomb core in the tape running process is ensured; on the other hand for a plurality of draw gear intervals set up, the honeycomb core can be stretched many times in enough long space, so, can enough avoid draw gear and refill apparatus for producing the interval too far, influence the tape transport tension and the tape transport stability of honeycomb core, be favorable to the honeycomb holes of every tensile stage to expand the design again, avoid tensile inefficacy.

Drawings

FIG. 1 is a schematic structural diagram of a multi-stage drawing honeycomb paperboard production facility provided by the present application;

fig. 2 is a schematic structural diagram of a honeycomb paperboard provided in the present application.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or may simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The application provides a multistage tensile honeycomb cardboard production facility includes: a paper core producing device 30 for outputting the honeycomb core 3; a first traction device 41, provided downstream of the core production device 30, for drawing the honeycomb core 3 output by the core production device 30 so that the honeycomb core 3 moves downstream; a second traction device 42 provided downstream of the first traction device 41 for drawing the honeycomb core 3 output from the first traction device 41 so as to facilitate downstream movement of the honeycomb core 3; a third traction device 43 provided downstream of the second traction device 42 for drawing the honeycomb core 3 output from the second traction device 42 so as to facilitate downstream movement of the honeycomb core 3; the traction speed of second traction device 42 is greater than the traction speed of first traction device 41, and the traction speed of third traction device 43 is greater than the traction speed of second traction device 42.

In one embodiment, the core production apparatus 30 can process a raw paper such as kraft paper into the honeycomb core 3.

In another embodiment, the core production device 30 is used to feed the processed honeycomb core 3 to the first drawing device 41.

Assuming that a traction speed of first traction device 41 is V1, a traction speed of second traction device 42 is V2, and a traction speed of third traction device 43 is V3; v3 > V2 > V1.

It will be readily understood that, in general, the first traction means 41, the second traction means 42 and the third traction means 43 act on the same honeycomb core 3 in different positions.

Since V2 is greater than V1, the second traction device 42 pulls the honeycomb core 3 forward a distance greater than the distance that the first traction device 41 pulls the honeycomb core 3 forward for the same pulling time period, and therefore, the second traction device 42 can pull the honeycomb core 3 between the first traction device 41 and the second traction device 42, so that the honeycomb holes on the honeycomb core 3 are unfolded from the closed state.

Since V3 is greater than V2, the third traction device 43 pulls the honeycomb core 3 for a longer distance than the second traction device 42 pulls the honeycomb core 3 for the same pulling time period, and therefore, the third traction device 43 can further pull the honeycomb core 3 apart, so that the honeycomb holes on the honeycomb core 3 are expanded to a greater extent.

It is easy to understand that if only one traction device is provided, so that the traction speed of the traction device is V3, since the value of V3 itself is large, a large difference is easily generated from the speed of the paper core production device 30 when outputting the honeycomb core 3; therefore, the honeycomb core 3 is subjected to a large traction force and a large deformation force during the stretching process, and in contrast, the retraction force of the honeycomb core 3 itself is also large; in this case, on one hand, the traction device needs to have a large traction force to pull the honeycomb core 3 open, but the pulled honeycomb core 3 is very easy to retract after being separated from the traction device, which not only easily affects the expansion effect of the honeycomb holes in the honeycomb core 3, but also easily affects the tape tension of the honeycomb core 3, resulting in the subsequent uncontrolled stretching.

By additionally arranging the traction devices and performing multiple times of stretching, on one hand, the speed can be controlled in a grading manner, and the overlarge speed difference between two adjacent traction devices is avoided, so that the honeycomb holes on the honeycomb core 3 can be gradually enlarged through multiple times of stretching, the retraction force can be favorably counteracted, and the stable tension of the honeycomb core 3 in the tape conveying process is ensured; on the other hand for a plurality of draw gear intervals set up, honeycomb core 3 can be stretched many times in enough long space, so, can enough avoid draw gear and paper core apparatus for producing 30 intervals too far, influence the tape transport tension and the tape transport stability of honeycomb core 3, be favorable to the honeycomb holes of every tensile stage to expand the design again, avoid tensile inefficacy.

In one embodiment, the first pulling device 41, the second pulling device 42 or the third pulling device 43 may be an extracting member such as a clamping jaw or a suction cup.

Specifically, after grabbing the honeycomb core 3, the extracting piece can carry the honeycomb core 3 to move downstream, so that the honeycomb core 3 is pulled.

More specifically, first traction device 41, second traction device 42 or third traction device 43 may comprise at least two groups of extractors, which can be used alternately. The first group of extraction parts can carry the honeycomb core 3 to move downstream to a second station after grabbing the honeycomb core 3 at a first station; meanwhile, the second group of extraction parts reach the first station, after the first group of extraction parts reach the second station, the first group of extraction parts loosen the honeycomb core 3, the second group of extraction parts grab the honeycomb core 3 at the first station and move to the second station, the first group of extraction parts return to the first station … …, and so on, at least two groups of extraction parts work alternately, and continuous traction on the honeycomb core 3 is realized.

In another embodiment, first traction device 41, second traction device 42, or third traction device 43 includes: a first drive roll around which the honeycomb core 3 is wound; and the traction driving piece is used for driving the first driving roller to rotate.

The traction driving piece can adopt a motor, a rotary cylinder and other rotation driving components.

Since the honeycomb core 3 is wound around the first drive roll, the first drive roll can drive the honeycomb core 3 to move downstream by friction when rotating.

As is readily understood, in order to ensure that the traction device actuates and stretches the honeycomb core 3, the traction device needs to apply a large traction force to the honeycomb core 3, and thus a large frictional force between the first driving roller and the honeycomb core 3 is required.

When the traction device only comprises the first driving roller, in order to improve the friction force between the first driving roller and the honeycomb core 3, the wrap angle of the honeycomb core 3 on the first driving roller needs to be increased; however, the larger the wrap angle is, the larger the bending degree of the honeycomb core 3 is, and the structure of the honeycomb core 3 is easily damaged by bending the honeycomb core 3, which affects subsequent use of the honeycomb core 3.

For this purpose, in an embodiment, the first traction device 41, the second traction device 42, or the third traction device 43 further includes a second driving roller, the second driving roller abuts against the first driving roller, and the second driving roller and the first driving roller can cooperate to clamp the honeycomb core 3.

In this embodiment, the second driving roller may be a driven roller. At this time, at least the second driving roll is used for contacting the roll surface of the honeycomb core 3 and can rotate around the self axis; when the traction driving piece drives the first driving roller to rotate, the first driving roller abuts against the second driving roller, and the abutting pressure and the friction force between the first driving roller and the second driving roller are interacted, so that the second driving roller can rotate along with the first driving roller, and the second driving roller and the first driving roller can be matched to clamp the honeycomb core 3 tightly, so that the honeycomb core 3 is pulled to move downstream, and the retraction force of the honeycomb core 3 is resisted while the honeycomb core 3 is stretched.

Alternatively, the second drive roller may also be a drive roller. At this time, the first traction device 41, the second traction device 42 or the third traction device 43 includes two sets of traction driving members for driving the first driving roll and the second driving roll to rotate, respectively. The first driving roller and the second driving roller are respectively driven by a group of traction driving parts and can synchronously rotate, so that the rotation directions of the first driving roller and the second driving roller are opposite, the first driving roller and the second driving roller can be matched with the traction honeycomb core 3 to move downstream, and the retraction force of the honeycomb core 3 is resisted while the honeycomb core 3 is stretched.

Optionally, the traction speed of second traction device 42 is 3 times the traction speed of first traction device 41.

Optionally, the traction speed of third traction device 43 is 5% faster than the traction speed of second traction device 42.

Optionally, the multistage drawing honeycomb paperboard production equipment provided by the application further comprises a paper core conveying device 70, wherein the paper core conveying device 70 is arranged downstream of the paper core production device 30 and upstream of the first traction device 41 and is used for receiving the honeycomb cores 3 output by the paper core production device 30 and conveying the honeycomb cores 3 to the first traction device 41.

When the paper core production apparatus 30 can process raw paper such as kraft paper into the honeycomb core 3, the processed honeycomb core 3 flows out from the output end of the paper core production apparatus 30, and if the honeycomb core 3 is directly pulled by the first pulling apparatus 41, the raw paper that has not been formed may be torn due to the large pulling force of the first pulling apparatus 41, which may affect the operation of the paper core production apparatus 30.

For this purpose, a core transport device 70 is provided between the core production device 30 and the first drawing device 41, the core transport device 70 being able to receive the formed honeycomb core 3 and guide the honeycomb core 3 towards the first drawing device 41. Because the paper core conveying device 70 has a certain length and can bear a section of formed honeycomb core 3, even if the first traction device 41 has high traction speed and high traction force, only the honeycomb holes of the honeycomb core 3 on the paper core conveying device 70 can be pulled open, and raw paper in the paper core production device 30 cannot be directly pulled.

The paper core conveying device 70 mainly plays a role in receiving and conveying the honeycomb core 3, the friction force between the paper core conveying device and the honeycomb core 3 is small, and the honeycomb holes cannot be pulled open, and raw material paper in the paper core production device 30 cannot be pulled.

The paper core conveying device 70 may adopt a conveying mechanism such as a conveyor belt or a motorized roller way.

In a specific embodiment, the core feeder 70 is a conveyor belt, the conveying surface of which is gradually raised from the core production device 30 to the first traction device 41.

Referring specifically to fig. 1, in the illustrated embodiment, the conveying surface of the core feeder 70 is gradually raised from right to left. With this arrangement, on the one hand, the moving speed of the honeycomb core 3 can be controlled to more stably convey the honeycomb core 3, and on the other hand, the height of the output port of the paper core conveying device 70 and the height of the first traction device 41 can be balanced, so that the honeycomb core 3 has a balanced belt position.

It is easy to understand that, during the traveling of the honeycomb core 3, the fluctuation of the plate surface cannot be too large, and once the honeycomb core 3 is inclined or bent at a large angle, the plate surface of the honeycomb core 3 is easy to crack.

Therefore, the paper core conveying device 70 with the inclined conveying surface is arranged, so that the discharging position of the paper core production device 30 and the feeding position of the first traction device 41 can be balanced, and the honeycomb core 3 is prevented from cracking on the board surface due to the sharp change of the belt conveying direction.

Further, the traveling height of the honeycomb core 3 is made balanced, which is advantageous for the quality state of the honeycomb core 3.

For example, in the embodiment shown in fig. 1, the first traction device 41, the second traction device 42, the third traction device 43, the first oven, the gluing device 50 and the pressing device 60 are arranged to contact the working ends of the honeycomb cores 3 substantially in the same plane, so that the traveling heights of the honeycomb cores 3 are relatively balanced.

Optionally, the multistage drawing honeycomb paperboard production equipment provided by the application further comprises a plurality of passing rollers, and the passing rollers are respectively arranged on the belt travelling path of the honeycomb core 3 and used for supporting the honeycomb core 3, so that the honeycomb core 3 has a stable belt travelling position.

The roller can be a driven roller, and if necessary, the roller can also be a driving roller. The rollers can be matched with a traction device and a paper core conveying device 70 to facilitate the downstream movement of the honeycomb core 3.

Optionally, the multistage stretching honeycomb paperboard production equipment provided by the present application further includes a first oven, and the first oven is disposed downstream of the paper core production device 30, and is used for drying the honeycomb core 3.

When paper core apparatus for producing 30 can be processed raw materials paper such as kraft paper for honeycomb core 3, the coating has glue on the raw materials paper so that assemble into honeycomb core 3 for honeycomb core 3 after the equipment gets into first oven, can solidify glue, make the shaping of honeycomb core 3

Wherein, first oven can adopt heating member such as heater strip, thermocouple to realize incasement high temperature, also can adopt infrared lamp pipe etc. to realize incasement high temperature, and first oven is then accessible inside high temperature stoving honeycomb core 3.

It should be noted that, when the first oven acts on the honeycomb core 3, the honeycomb core 3 may be completely dried, or the honeycomb core 3 may be dried to a predetermined humidity as required. In a specific embodiment, the water content of the honeycomb core 3 prepared by the paper core production device 30 is 16%, and after passing through the first oven, the water content of the honeycomb core 3 is 10%.

Further, in order to facilitate the honeycomb cores 3 to enter the first oven and move downstream along the first oven, a conveying device (such as a conveyor belt, a conveyor roller, etc., or a paper core conveying device 70 is disposed in the first oven) may be disposed in the first oven, so that the honeycomb cores 3 are dried while traveling through the first oven.

The first oven may be a semi-closed box having an inlet on one side and an outlet on the other side, and the conveyor is disposed in the box and is capable of guiding the honeycomb cores 3 to move from the inlet to the outlet. Alternatively, the first oven may be a housing covering the conveying surface of the conveyor, and the honeycomb core 3 gradually passes through the first oven while running on the conveyor.

In one embodiment, the first oven is arranged upstream of the first drawing device 41. At this time, the honeycomb core 3 generated by the paper core production device 30 enters the first oven to be dried.

In another embodiment, the first pulling device 41 and/or the second pulling device 42 are provided inside the first oven. In this case, the first drawing device 41 and/or the second drawing device 42 can also be used as a conveying device in the first oven, and can draw and stretch the honeycomb cores 3 and guide the honeycomb cores 3 through the first oven. In this embodiment, first oven not only can dry honeycomb core 3, can also finalize the design, be favorable to avoiding the honeycomb holes that is drawn open to retract to tensile honeycomb core 3.

In yet another embodiment, the third pulling device 43 is provided in the first oven, which is capable of shaping the stretched honeycomb core 3.

It should be noted that in the multi-stage stretching honeycomb paperboard production equipment provided by the present application, the third drawing device 43 is a last stage drawing device, and generally, after the honeycomb core 3 is drawn and stretched by the third drawing device 43, the honeycomb holes thereof are pulled apart to a preset degree; drying the honeycomb core 3 in the last stretching process, not only can not influence the stretching effect because glue is dry and solid, but also can finally do the design to honeycomb core 3, not only is favorable to the stretching effect, still is favorable to the stability of honeycomb core 3 tape transport, can offset the retractive force of honeycomb core 3 better.

Optionally, the multistage stretching honeycomb paperboard production equipment that this application provided still includes: the facial tissue unwinding device 10 is used for outputting facial tissues 1; the bottom paper unwinding device 20 is used for outputting the bottom paper 2; the glue coating device 50 is used for coating glue on the surface paper 1, the bottom paper 2 and/or the honeycomb core 3; and the pressing device 60 is arranged at the downstream of the gluing device 50 and is used for pressing the surface paper 1, the honeycomb core 3 and the bottom paper 2 so as to bond the surface paper 1, the honeycomb core 3 and the bottom paper 2 together.

Referring specifically to fig. 2, a side configuration of a honeycomb paperboard is illustrated. In the illustrated embodiment, the honeycomb core 3 is disposed between the face paper 1 and the base paper 2, the face paper 1 and the base paper 2 are flat paper, and the honeycomb core 3 is a paper core having honeycomb holes processed from the flat paper.

Wherein, the surface paper 1, the bottom paper 2 and the honeycomb core 3 can be made of the same raw material paper (such as kraft paper), if necessary, different raw material paper can be also made.

In one embodiment, the facial tissue unwinding device 10 is used for outputting the cut facial tissue 1, and the bottom tissue unwinding device 20 is used for outputting the cut bottom tissue 2; meanwhile, a device for cutting the honeycomb core 3 is further arranged at the downstream of the third traction device 43, and the honeycomb core 3 can be cut into a preset plate type; coating glue on the cut surface paper 1, the base paper 2 and/or the honeycomb core 3; the honeycomb core 3 is clamped between the face paper 1 and the bottom paper 2, and the face paper 1, the honeycomb core 3 and the bottom paper 2 which are overlapped together are extruded by the pressing device 60, so that the three can be fixed.

In another embodiment, the facial tissue unwinding device 10 can continuously unwind the facial tissue 1, and the bottom tissue unwinding device 20 can continuously unwind the bottom tissue 2; at the same time, the paper core producing device 30 can continuously release or prepare the honeycomb core 3; the gluing device 50 is used for coating glue on the surface paper 1, the bottom paper 2 and/or the honeycomb core 3; after the glue is applied, the continuous face paper 1, honeycomb core 3 and base paper 2 are extrusion bonded at the press 60.

In this embodiment, the bonding apparatus 60 is capable of continuously producing a long, continuous strip of honeycomb paperboard. If necessary, a cutting device can be arranged at the downstream of the pressing device 60, so that the continuous honeycomb paperboard can be cut into required sizes and even shapes; if not required, a take-up device may be provided downstream of the laminating device 60 to enable the continuous honeycomb paperboard to be wound up.

In this embodiment, when the facial tissue unwinding device 10 and the base tissue unwinding device 20 are far away from the pressing device 60, rollers can be disposed on the belt path of the facial tissue 1 and/or the base tissue 2, and the rollers can support and guide the facial tissue 1 and/or the base tissue 2 to move downstream.

In a specific embodiment, referring to fig. 1, the multi-stage stretching honeycomb paperboard production equipment comprises six sets of unwinding rollers 11, wherein paper rolls formed by winding raw paper are sleeved on the unwinding rollers 11, and when the multi-stage stretching honeycomb paperboard production equipment is used, the unwinding rollers 11 rotate to release the paper rolls on the unwinding rollers; the unwinding roller 11 continuously rotates, and the roll thereon is continuously discharged to form a continuous sheet.

Further, in the embodiment shown in fig. 1, one of the unwinding rollers 11 is used as the tissue unwinding device 10 for releasing the tissue 1; the other unwinding roller 11 is used as a base paper unwinding device 20 for releasing the base paper 2; the other four unwinding rollers 11 serve as unwinding mechanisms of the core paper producing apparatus 30, and the raw material paper discharged from the four unwinding rollers 11 is used for building the honeycomb core 3.

It is easily understood that in order to bond the face paper 1, the honeycomb core 3 and the base paper 2, glue is applied between the face paper 1 and the honeycomb core 3, and between the base paper 2 and the honeycomb core 3. For this reason, the glue applicator 50 may apply the glue to only the bottom surface of the face paper 1 and the top surface of the base paper 2, may apply the glue to only the top surface and the bottom surface of the honeycomb core 3, and may apply the glue to the bottom surface of the face paper 1, the top surface of the base paper 2, and the top surface and the bottom surface of the honeycomb core 3.

The paper (the face paper 1, the backing paper 2 or the honeycomb core 3) to be coated with the glue is firstly fed into the gluing device 50, and then fed into the pressing device 60 after gluing. And the paper piece without glue can be fed directly into the laminating device 60.

The gluing device 50 can apply glue to the paper by using a roller, a brush, a sponge brush and other gluing parts, or spray glue to the paper by using a spray head and other glue spraying parts.

Optionally, a fourth traction device is provided in the gluing device 50.

The structure of the fourth traction device is similar to that of the first traction device 41, the second traction device 42 and the third traction device 43, and details are not repeated.

In one embodiment, the fourth pulling device comprises: a first drive roll around which the honeycomb core 3 is wound; the traction driving piece is used for driving the first driving roller to rotate; and the second driving roller is abutted against the first driving roller and can be matched with the first driving roller to clamp the honeycomb core 3. When the honeycomb core pulling device works, the first driving roller and the second driving roller clamp the honeycomb core 3, the first driving roller is driven to rotate by the traction driving piece, and the first driving roller is matched with the second driving roller, so that the honeycomb core 3 can be driven by friction, and the honeycomb core 3 can move downstream.

Through set up the fourth draw gear in rubber coating device 50, the fourth draw gear can enough draw and accomplish tensile honeycomb core 3 and get into rubber coating device 50 and to the movement of compression fittings 60, can further prevent honeycomb core 3 to retract again, guarantees tensile honeycomb core 3's design effect. Especially, when the fourth traction device comprises a first driving roller and a second driving roller which are mutually abutted and can clamp the honeycomb core 3, the first driving roller and the second driving roller can clamp the honeycomb core 3 and avoid the honeycomb core from retracting; the first traction device 41, the second traction device 42, the third traction device 43 and the fourth traction device occupy a large area, specifically, in one embodiment, the straight line lengths of the four groups of traction devices are about 10m, the honeycomb core 3 is stretched for multiple times by using a long traction path, and the traveling of the honeycomb core 3 is stable and the shaping effect is good.

It should be added that, when gluing the stretched honeycomb core 3, since the honeycomb core 3 has a retraction force, the honeycomb core 3 is very easy to deform during the gluing process, and optionally, the traction speed of the fourth traction device is greater than the traction speed of the third traction device 43 to ensure the gluing effect.

The traction speed of the fourth traction device is high, the retraction force of the honeycomb core 3 can be offset, the gluing accuracy is ensured, and the shaping of the stretched honeycomb core 3 can be enhanced.

Optionally, the pulling speed of the fourth pulling device is slightly greater than that of the third pulling device 43, so that the speed difference between the two is small, and the honeycomb core 3 can be prevented from being stretched additionally. Especially when the third drawing device 43 is provided in the first oven, the honeycomb core 3 is subjected to the first oven setting before entering the glue coating device 50, and if the honeycomb core 3 is stretched after the setting, the setting may be deteriorated.

For example, the traction speed of the fourth traction device is 5% faster than the traction speed of the third traction device 43.

If necessary, the fourth pulling device may be used to pull the honeycomb core 3 again, and the pulling speed of the fourth pulling device may be adjusted.

The pressing device 60 can adopt an upper pressing roller and a lower pressing roller, so that the upper pressing roller and the lower pressing roller are abutted to regulate the annual pressure between the upper pressing roller and the lower pressing roller, and when the honeycomb core 3 passes through the upper pressing roller and the lower pressing roller, the pressing device 60 can realize the pressing of the honeycomb core 3 through extrusion. Further, by rotating the upper and lower press rollers in opposite directions, the honeycomb core 3 can be pulled and the honeycomb core 3 can be moved downstream.

In other embodiments, the pressing device 60 may also be a belt or the like.

Optionally, the multi-stage stretching honeycomb paperboard production equipment provided by the present application further includes a second oven, and the second oven is disposed downstream of the pressing device 60, and is used for curing the glue for bonding the face paper 1, the honeycomb core 3, and the base paper 2.

The specific configuration of the second oven is similar to that of the first oven, and details are not repeated.

The honeycomb paperboard after being pressed is dried through the second drying oven, so that the glue coated by the gluing device 10 can be dried, and the glue used in the process of preparing the honeycomb core 3 can be dried, so that the honeycomb paperboard can be shaped.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not to be construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A multi-stage stretching honeycomb paperboard production device is characterized by comprising:

a paper core production device (30) for outputting the honeycomb core (3);

the first traction device (41) is arranged at the downstream of the paper core production device (30) and is used for traction the honeycomb core (3) output by the paper core production device (30) so as to facilitate the downstream movement of the honeycomb core (3);

a second traction device (42) which is arranged at the downstream of the first traction device (41) and is used for drawing the honeycomb core (3) output by the first traction device (41) so as to facilitate the downstream movement of the honeycomb core (3);

a third traction device (43) which is arranged at the downstream of the second traction device (42) and is used for drawing the honeycomb core (3) output by the second traction device (42) so as to facilitate the downstream movement of the honeycomb core (3);

wherein the traction speed of the second traction device (42) is greater than the traction speed of the first traction device (41), and the traction speed of the third traction device (43) is greater than the traction speed of the second traction device (42).

2. The multistage drawing honeycomb paperboard production apparatus according to claim 1, characterized in that the first drawing device (41), the second drawing device (42), or the third drawing device (43) includes:

a first drive roll around which the honeycomb core (3) is wound;

and the traction driving piece is used for driving the first driving roller to rotate.

3. The apparatus for producing a multi-stage stretched honeycomb paperboard according to claim 2, characterized in that the first drawing device (41), the second drawing device (42) or the third drawing device (43) further comprises a second drive roll which is abutted against the first drive roll and which is capable of clamping the honeycomb core (3) in cooperation with the first drive roll.

4. The apparatus for producing a multi-stage stretched honeycomb cardboard according to claim 1, further comprising a core conveyor (70), wherein the core conveyor (70) is provided downstream of the core production device (30) and upstream of the first traction device (41) and is adapted to receive the honeycomb cores (3) discharged from the core production device (30) and to convey the honeycomb cores (3) to the first traction device (41).

5. The apparatus for producing multi-stage stretched honeycomb cardboard according to claim 4, characterized in that the core transport device (70) is a conveyor belt, the conveying surface of which is gradually raised from the core production device (30) to the first traction device (41).

6. The apparatus for producing multi-stage stretched honeycomb paperboard according to claim 1, further comprising a first oven disposed downstream of the core paper production device (30) for drying the honeycomb core (3).

7. The multistage drawing honeycomb paperboard production apparatus according to claim 6, characterized in that the third drawing device (43) is provided in the first oven, which is capable of shaping the drawn honeycomb core (3).

8. The apparatus for producing multi-stage stretched honeycomb paperboard according to any one of claims 1 to 7, further comprising:

the facial tissue unwinding device (10) is used for outputting facial tissues (1);

the bottom paper unwinding device (20) is used for outputting the bottom paper (2);

the glue coating device (50) is used for coating glue on the surface paper (1), the bottom paper (2) and/or the honeycomb core (3);

and the pressing device (60) is arranged at the downstream of the gluing device (50) and is used for pressing the surface paper (1), the honeycomb core (3) and the bottom paper (2) so as to bond the surface paper (1), the honeycomb core (3) and the bottom paper (2) together.

9. The apparatus for producing multi-stage stretched honeycomb cardboard according to claim 8, characterized in that a fourth pulling means is provided in the gluing means (50), the pulling speed of the fourth pulling means being greater than the pulling speed of the third pulling means (43).

10. The apparatus for producing multi-stage stretched honeycomb paperboard according to claim 8, further comprising a second oven disposed downstream of the laminating device (60) for curing the glue that bonds the face paper (1), honeycomb core (3) and base paper (2).

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