CN209937881U

CN209937881U - Paperboard humidifying mechanism

Info

Publication number: CN209937881U
Application number: CN201920624928.5U
Authority: CN
Inventors: 向成红
Original assignee: Chongqing He Xin Packing Printing Co Ltd
Current assignee: Chongqing Hexin Intelligent Technology Co ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-01-14
Anticipated expiration: 2029-04-30

Abstract

The utility model belongs to the technical field of corrugated board processing equipment, in particular to a paperboard humidifying mechanism, which comprises a workbench of a gluing machine and a belt unit positioned above the workbench, wherein a first spraying unit used for cooling a belt is arranged above the belt unit and comprises a first water pipe and a first water spraying pipe, and a plurality of first water spraying ports facing the belt are axially and uniformly distributed on the first water spraying pipe; and a second spraying unit is arranged below the feeding end of the workbench and comprises a second water conveying pipe, a second water spraying pipe and a baffle, and a plurality of second water spraying openings facing the baffle are axially and uniformly distributed on the second water spraying pipe. This scheme is through carrying out humidification cooling treatment to the belt unit, reduces the belt temperature, gives upper and lower boxboard paper simultaneously and carries out humidification treatment, increases body paper humidity, and the humidification degree is suitable, can solve the poor problem of bonding that corrugated container board bonding in-process body paper is too dry or moisture content is too much and cause.

Description

Paperboard humidifying mechanism

Technical Field

The utility model belongs to the technical field of corrugated container board processing equipment, a cardboard humidification mechanism is specifically disclosed.

Background

The corrugated board is formed by bonding two kinds of base paper, namely corrugated paper and boxboard paper, has good elasticity and extensibility, and is mainly used for manufacturing paper boxes, sandwich of the paper boxes and other packaging materials of fragile commodities. In the production process of the corrugated board, whether the adhesion among various base papers is tight and firm directly influences the quality of the corrugated board. The corrugated paperboard with good adhesion has smooth surface, no bubble, no fold and no warp, no separation between the paper sheets, and better compression resistance and buffering performance. However, in the production process of corrugated cardboard, the phenomenon of poor adhesion (foaming and degumming) of the corrugated cardboard often occurs, and the adhesion problem accounts for nearly seven percent of the waste and defective products generated in the production line of the corrugated cardboard at present.

One of the main reasons for poor adhesion of corrugated cardboard is that the cardboard or corrugated paper is too dry due to the high temperature working environment of the bonder, and when too dry, the moisture necessary for swelling and bonding of the bonding agent is absorbed by the base paper, resulting in non-gelatinization of the bonding agent. Aiming at the problems, the existing solution is to perform spray humidification treatment on the base paper before the base paper enters the bonder, so that the humidity of the paperboard is increased, and the adhesive is convenient to gelatinize and take effect after the paperboard is wetted, so that the paperboard is bonded firmly. Although current spraying apparatus can realize carrying out the humidification operation to the body paper, nevertheless can lead to workshop humidity to increase to cause body paper moisture content too much, unnecessary moisture can absorb the heat, lead to the heat not enough, thereby cause the phenomenon of bonding failure.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cardboard humidification mechanism to solve the poor problem of bonding that corrugated container board bonding in-process body paper is too dry or moisture content is too much and causes.

In order to achieve the above object, the basic scheme of the utility model is: a paperboard humidifying mechanism comprises a workbench of a bonder and a belt unit, wherein the belt unit is positioned right above the workbench and comprises a belt, a driving wheel, a driven wheel and a tension wheel, the driving wheel, the driven wheel and the tension wheel are used for driving the belt to work, a first spraying unit used for cooling the belt is arranged above the belt unit and comprises a first water pipe and a first water spraying pipe which are connected, a plurality of first water spraying openings facing the belt are axially and uniformly distributed on the first water spraying pipe, and first spraying nozzles are arranged on the first water spraying openings; the lower part of the feed end of workstation is equipped with the second spraying unit, and the second spraying unit includes continuous second raceway and second spray pipe, fixedly connected with baffle on the second spray pipe, and the length direction of baffle is on a parallel with the length direction of second spray pipe, and axial evenly distributed has the second water jet of a plurality of orientation baffle on the second spray pipe, and the second water jet all is equipped with the second atomizer.

The working principle of the basic scheme is as follows: the bonder during operation, under the cooperation of workstation and belt unit, the corrugated paper of upper and lower boxboard paper and centre gets into the back from the feed end of workstation, by the bonding corrugated container board, at this in-process, workstation and belt unit temperature are higher mainly, consequently, the first spraying unit of belt top can carry out the humidification cooling to the belt, and the belt can be with moisture content area to last boxboard paper simultaneously, will go up boxboard paper moist, and the second atomizer of second spraying unit will spout the fog after spouting the baffle on, the baffle can be with spraying rebound to its humidification on the lower boxboard paper.

The beneficial effect of this basic scheme lies in: in the working process of the bonder, the temperature of the workbench and the belt unit is higher, so that the scheme is provided with the first spraying unit and the second spraying unit, the first spraying unit is used for spraying, humidifying and cooling the belt, the temperature of the belt is reduced, meanwhile, the belt can bring moisture to the upper carton paperboard and humidify the upper carton paperboard, the upper carton paperboard is prevented from being too dry, most of water is heated and evaporated due to the high temperature of the belt, and the excessive humidity of the upper carton paperboard is avoided; the second spraying unit can carry out the spraying humidification to lower boxboard paper, wherein, sets up the baffle, on avoiding the water in the second atomizer to directly spout lower boxboard paper, causes lower boxboard paper humidity too big.

According to the scheme, the belt unit is subjected to humidification and cooling treatment, so that the temperature of the belt is reduced, and the phenomenon that the paperboard is too dry due to overhigh temperature of equipment in the paperboard bonding process is avoided; meanwhile, the upper and lower box board papers before bonding can be humidified, the base paper humidity is increased, the humidification degree is proper, the excessive paper board humidity cannot be caused, and the problem of poor bonding caused by too dry base paper or excessive moisture in the corrugated board bonding process can be solved.

Further, the cross section of the baffle is L-shaped.

In this scheme, the baffle of transversal personally submitting the L type has the effect of holding the water, and unnecessary water can flow along the both ends of baffle, and reuse cask or other devices collect the surplus water, recycle, but the water economy resource.

Further, the top of belt unit is equipped with the dehumidification unit, and the dehumidification unit includes fan housing, fan, exhaust pipe and is used for driving the motor of fan work, and the air intake of fan housing is towards the belt, and the fan is located the fan housing, and the exhaust pipe is connected with the fan housing.

In the scheme, the motor drives the fan to rotate to drive airflow, and moist air is sucked from the air inlet of the air cover and then is exhausted through the exhaust pipe; the effect through the dehumidification unit can be taken away unnecessary moisture on the belt and near the belt unit, avoids adhering to too much water on the belt, reduces the humidity of the interior environment of workshop simultaneously, avoids body paper moisture content too much, improves corrugated container board's adhesion quality.

Furthermore, the dehumidification unit also comprises a condenser and a water containing tank, wherein the condenser is provided with an inlet end, a drainage end and an exhaust end, the exhaust pipe is connected with the inlet end of the condenser, and the water containing tank is connected with the drainage end of the condenser.

In the scheme, the exhaust pipe sends the humid air pumped away by the fan into the condenser, the condenser condenses the moisture in the air into water to be collected in the water containing tank, the humid air is changed into dry air, and the dry air can be discharged out of a room from the exhaust end of the condenser. The scheme can recycle and store water, and reduces the waste of water resources.

Further, the dehumidification unit also comprises a filter, and the filter is arranged between the exhaust pipe and the condenser.

In this scheme, the humid air that takes away the fan is through filter purification treatment back, recycles again, can improve the cleanliness factor of retrieving water.

Further, the first water delivery pipe and the second water delivery pipe are connected with a water pump, and the water pump supplies water to the first water delivery pipe and the second water delivery pipe.

Furthermore, the water inlet end of the water pump is connected with the water containing tank.

In this scheme, through the ingenious design of structure, during the water that will hold in the water tank sent into the water pump, be used for the humidification cooling of belt and body paper again, realized the cyclic utilization of water resource.

The device further comprises a humidity adjusting unit, wherein the humidity adjusting unit comprises a controller and two humidity sensors electrically connected with the controller, and the two humidity sensors are respectively arranged above and below the feeding end of the workbench; the first water delivery pipe and the second water delivery pipe are respectively provided with an electromagnetic valve for controlling water quantity, and the electromagnetic valves are electrically connected with the controller.

In this scheme, the humidity transducer of the top of workstation feed end and below is used for detecting the humidity value of the near environment of boxboard paper and lower boxboard paper respectively to feed back the humidity value to the controller, the controller can control the degree of opening and shutting of solenoid valve, and then adjusts the water yield size that gets into first spray pipe and second spray pipe, adjusts the spraying volume, and control humidity is suitable, further avoids the body paper too dry or moisture content too much.

Further, the baffle is made by metal material, and the baffle is connected with and is used for heating up the heating element that rises for the baffle.

In this scheme, heating element heats the baffle into the high temperature state, and the water of second atomizer will become steam after spouting on the baffle, to the boxboard humidification, and steam temperature is higher, can avoid microthermal water to spout back on the body paper like this, and water endothermic evaporation siphons away the heat when the bonding, and the heat is not enough when leading to corrugated container board bonding to cause corrugated container board bonding not good.

Furthermore, the heating components are electric heating resistance wires which are uniformly distributed in the baffle.

The baffle is heated by the electric heating resistance wires arranged in the baffle, so that each part of the baffle can be heated up and heated uniformly, and the water vapor of the second spraying unit is uniformly distributed on the cardboard paper below.

Drawings

Fig. 1 is a front view of a paperboard humidifying mechanism according to an embodiment of the present invention;

fig. 2 is a left side view of a paperboard humidifying mechanism according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a dehumidifying unit in a paperboard humidifying mechanism according to an embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a workbench 1, a belt unit 2, a belt 21, a driving wheel 22, a driven wheel 23, a tension wheel 24, a first spraying unit 3, a first water pipe 31, a first water spraying pipe 32, a first spraying nozzle 33, a second spraying unit 4, a second water spraying pipe 41, a second spraying nozzle 42, a baffle 43, a dehumidifying unit 5, a fan cover 51, a fan 52, an exhaust pipe 53, a filter 54, a condenser 55, a water containing tank 56, a humidity sensor 6, a corrugated board 7, an upper box board 71, a corrugated board 72 and a lower box board 73.

The embodiment is basically as shown in fig. 1 and fig. 2: the utility model provides a cardboard humidification mechanism, workstation 1 and belt unit 2 including the bonder, belt unit 2 is located workstation 1 directly over, belt unit 2 includes belt 21 and the action wheel 22 that is used for driving belt 21 work, from driving wheel 23 and take-up pulley 24, belt unit 2's top is equipped with the first spraying unit 3 that is used for giving belt 21 cooling, first spraying unit 3 is including the first raceway 31 and the first spray pipe 32 that link to each other, axial evenly distributed has a plurality of first water jet towards belt 21 on the first spray pipe 32, first atomizer 33 is all installed to first water jet.

A second spraying unit 4 is arranged below the feeding end of the workbench 1, the second spraying unit 4 comprises a second water pipe (not shown in the figure) and a second water spraying pipe 41 which are connected, a baffle 43 is welded on the second water spraying pipe 41, the length direction of the baffle 43 is parallel to the length direction of the second water spraying pipe 41, the cross section of the baffle 43 is in an L shape, a plurality of second water spraying openings facing the baffle 43 are uniformly distributed on the second water spraying pipe 41 in the axial direction, second spraying nozzles 42 are installed at the second water spraying openings, and the baffle 43 is made of a metal material which can be stainless steel or carbon steel. The baffle 43 is connected with a heating assembly for heating the baffle 43, and the heating assembly is an electric heating resistance wire (not shown in the figure) uniformly distributed in the baffle 43. Further, the first water delivery pipe 31 and the second water delivery pipe are connected with a water pump (not shown in the drawings) for supplying water.

The belt unit 2 is provided with a dehumidifying unit 5 above, specifically, the dehumidifying unit 5 is provided on both left and right sides of the first water spraying pipe 32, and as shown in fig. 3, the dehumidifying unit 5 includes a fan housing 51, a fan 52, a motor (not shown) for driving the fan 52 to operate, an exhaust duct 53, a filter 54, a condenser 55, and a water containing tank 56. Wherein, the air inlet of the fan housing 51 faces the belt 21, the motor is a servo motor, the fan 52 is positioned in the fan housing 51, and the exhaust duct 53 is connected with the fan housing 51; the exhaust pipe 53, the filter 54, the condenser 55 and the water containing tank 56 are sequentially connected, specifically, the condenser 55 is provided with an inlet end, a drainage end and an exhaust end, the exhaust pipe 53 and the filter 54 are sequentially connected with the inlet end of the condenser 55, and the water containing tank 56 is connected with the drainage end of the condenser 55; the water inlet end of the pump is also connected to a water tank 56.

The mechanism also comprises a humidity adjusting unit, wherein the humidity adjusting unit comprises a controller (not shown in the figure) and two humidity sensors 6 electrically connected with the controller, and the two humidity sensors 6 are respectively arranged above and below the feeding end of the workbench 1; the first water pipe 31 and the second water pipe are both provided with electromagnetic valves (not shown in the figure) for controlling water quantity, and the electromagnetic valves are electrically connected with the controller. The upper and lower humidity sensors 6 are respectively used for detecting the humidity values of the environments near the upper box board paper 71 and the lower box board paper 73 and feeding the humidity values back to the controller, the controller can control the opening and closing degree of the electromagnetic valve, so that the water quantity entering the first water spraying pipe 32 and the second water spraying pipe 41 is adjusted, the spraying quantity is adjusted, the control humidity is proper, and the base paper is prevented from being too dry or too much water.

The specific implementation process is as follows:

when the gluing machine works, under the cooperation of the workbench 1 and the belt unit 2, the upper box board paper 71, the middle corrugated paper 72 and the lower box board paper 73 enter from the feeding end of the workbench 1 and are glued into the corrugated board 7, in the process, the temperature of the workbench 1 and the belt unit 2 is higher, therefore, the first spraying unit 3 and the second spraying unit 4 are arranged, the first spraying unit 3 above the belt 21 can humidify and cool the belt 21 and reduce the temperature of the belt 21, meanwhile, the belt 21 can bring the moisture onto the upper box board paper 71 to humidify the upper box board paper 71, the upper box board paper 71 is prevented from being too dry, most of water can be heated and evaporated due to the high temperature of the belt 21, and the humidity of the upper box board paper 71 cannot be too high. Because baffle 43 is heated and becomes high temperature, the spraying of second atomizer 42 can become steam after spouting baffle 43, then humidify on lower boxboard 73, and steam temperature is higher, can avoid low-temperature water to spout the back on the body paper like this, and water heat absorption evaporation siphons away the heat when the bonding, and the heat is not enough when leading to corrugated container board 7 to bond to cause corrugated container board 7 to bond not good.

Meanwhile, the baffle 43 is arranged to prevent the water in the second spray nozzles 42 from being directly sprayed onto the lower carton board 73, so that the humidity of the carton board is too high; in addition, the baffle 43 with the L-shaped cross section has the function of bearing water, redundant water can flow out along the two ends of the baffle 43, and then residual water is collected by a bucket or other devices for recycling, so that water resources can be saved.

In the above process, in order to avoid the excessive humidity of the indoor environment of the factory, the dehumidifying unit 5 may be started to perform the dehumidifying process, and the specific working process is as follows: firstly, a motor is started to drive a fan 52 to operate, excess water on a belt 21 and moist air near a belt unit 2 are sucked from an air inlet of an air cover 51, the air is sent into a filter 54 through an exhaust pipe 53, the air is purified by the filter 54 and then enters a condenser 55, the condenser 55 condenses the water in the air into water and collects the water in a water containing tank 56, and the moist air is changed into dry air and is discharged out of a room, so that excessive water is prevented from being attached to the belt 21, the humidity of the environment in a workshop is reduced, the excessive moisture content of base paper is avoided, and the bonding quality of the corrugated board 7 is improved.

In addition, water in the water containing tank 56 can enter the water pump and can be used for humidifying and cooling the belt 21 and the base paper, and the water resource recycling is realized through the ingenious design of the structure.

Those skilled in the art will appreciate that the primary equipment described in the present solution may be purchased in the market in different models and sizes according to specific needs. For example, the main equipment and process parameters used in the scheme are as follows: the first spray nozzle 33 and the second spray nozzle 42 are HD-TK611 type mist heads with a nominal diameter DN40 mm; the filter 54 is a high-temperature-resistant high-efficiency air filter 54, and the condenser 55 is a BFT1605 type calandria condenser 55; the controller is a DDC controller; the humidity sensor 6 is an HX15 series high-temperature-resistant humidity sensor 6; the electromagnetic valve is an MXF461.20-5.0 flow regulating electromagnetic valve with a nominal diameter DN150 mm.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. Cardboard humidification mechanism, its characterized in that: the belt unit is positioned right above the workbench and comprises a belt, a driving wheel, a driven wheel and a tensioning wheel, wherein the driving wheel, the driven wheel and the tensioning wheel are used for driving the belt to work; the lower part of the feed end of workstation is equipped with the second spraying unit, and the second spraying unit includes continuous second raceway and second spray pipe, fixedly connected with baffle on the second spray pipe, and the length direction of baffle is on a parallel with the length direction of second spray pipe, and axial evenly distributed has the second water jet of a plurality of orientation baffle on the second spray pipe, and the second water jet all is equipped with the second atomizer.

2. A paperboard moisturizing mechanism as in claim 1, wherein: the cross section of the baffle is L-shaped.

3. A paperboard moisturizing mechanism as in claim 1 or 2, wherein: the upper side of the belt unit is provided with a dehumidifying unit, the dehumidifying unit comprises a fan cover, a fan, an exhaust pipe and a motor for driving the fan to work, and an air inlet of the fan cover faces the belt.

4. A paperboard moisturizing mechanism as in claim 3, wherein: the dehumidification unit further comprises a condenser and a water containing tank, the condenser is provided with an inlet end, a drainage end and an exhaust end, the exhaust pipe is connected with the inlet end of the condenser, and the water containing tank is connected with the drainage end of the condenser.

5. A paperboard humidifying mechanism as recited in claim 4, wherein: the dehumidification unit also comprises a filter, and the filter is arranged between the exhaust pipe and the condenser.

6. A paperboard humidifying mechanism as recited in claim 5, wherein: the first water delivery pipe and the second water delivery pipe are connected with a water pump.

7. A paperboard humidifying mechanism as recited in claim 6, wherein: the water inlet end of the water pump is also connected with the water containing tank.

8. A paperboard moisturizing mechanism as in claim 1 or 2, wherein: the device also comprises a humidity adjusting unit, wherein the humidity adjusting unit comprises a controller and two humidity sensors electrically connected with the controller, and the two humidity sensors are respectively arranged above and below the feeding end of the workbench; the first water delivery pipe and the second water delivery pipe are respectively provided with an electromagnetic valve for controlling water quantity, and the electromagnetic valves are electrically connected with the controller.

9. A paperboard moisturizing mechanism as in claim 1 or 2, wherein: the baffle is made by metal material, and the baffle is connected with and is used for heating up the heating element that heaies up for the baffle.

10. A paperboard humidifying mechanism as recited in claim 9, wherein: the heating components are electric heating resistance wires which are uniformly distributed in the baffle.