CN111571748A

CN111571748A - Pencil board softens modification device

Info

Publication number: CN111571748A
Application number: CN202010301335.2A
Authority: CN
Inventors: 邱文清
Original assignee: Zhejiang Qianyi Cultural Products Co ltd
Current assignee: Zhejiang Qianyi Cultural Products Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-08-25

Abstract

The invention discloses a softening and modifying device for a pencil plate, which belongs to the field of pencil production equipment and comprises a pencil plate conveying box and a softening and modifying pool, wherein heating nets are respectively arranged on two sides of the softening and modifying pool; the pencil board conveying box is placed in the softening modification pool, and a pencil board groove which is communicated from left to right is formed in the pencil board conveying box; in the hydrothermal softening process, liquid can be added into the softening modification tank, in the drying and high-temperature modification processes, the liquid in the softening modification tank can be discharged, and gas can be introduced into the softening modification tank; the problem of among the prior art, in order to avoid pencil board bending or embrittlement, need carry out temperature rise to the pencil board by stage when dry pencil board, lead to the course of working consuming time overlength, greatly increased the cost is solved.

Description

Pencil board softens modification device

Technical Field

The invention relates to equipment for producing pencils, in particular to a softening and modifying device for a pencil plate.

Background

The pencil board is a semi-finished product in the process of manufacturing the pencil, and can be manufactured into a pencil holder after being cut and processed; before the pencil board is cut, the processes of hydrothermal softening, drying, high-temperature denaturation and the like are needed to ensure that the pencil board reaches the softening and easy-cutting degree. The softening, drying and high-temperature denaturation processes of the existing pencil board are separated in the processing process of the pencil board, the temperature of the pencil board can be reduced in the conveying process from a pencil board cooking pool to a drying furnace, and after the temperature in the drying furnace continuously rises, the pencil board is easy to bend and embrittle, so that the pencil board is easy to break in the cutting process, and the material waste is caused.

For example, in the method for manufacturing pencil boards by modifying poplar instead of basswood disclosed in the Chinese patent document, the publication No. CN102962873B describes a method in which after hydrothermal softening in a softening pressure cylinder, the board is required to be sent into a drying room for heating, and the method has the disadvantages that the temperature of the board is greatly reduced during the transportation to the drying room, in order to avoid bending and embrittlement of the board caused by continuous temperature rise, the board is required to be kept at a low temperature of 50-60 ℃ for 30-40 hours, then kept at a high temperature of 130-150 ℃ for 16-20 hours to complete board modification, and then kept at a low temperature of 60-70 ℃ for 40-50 hours to complete high-temperature modification and setting treatment of the poplar. The time consumption of the whole pencil board processing process is too long, and the cost is greatly increased.

Disclosure of Invention

The invention provides a pencil board softening and modifying device, aiming at overcoming the problems that in the prior art, in the process of putting a pencil board into a drying furnace for drying after the pencil board is hydrothermally softened, the temperature of the pencil board can be greatly reduced, so that the wood board is easy to bend and embrittle due to continuous temperature rise during drying, if the condition is avoided, the temperature of the wood board needs to be raised in stages, the processing time of the pencil board is prolonged, the manufacturing period of the pencil board is prolonged, and the cost is greatly increased.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention discloses a pencil board softening and modifying device which comprises a pencil board conveying box and a softening and modifying pool, wherein a first inlet and a second inlet are respectively formed in two sides of the softening and modifying pool, and a heating net which is opposite to the first inlet and the second inlet is arranged in the softening and modifying pool; the pencil board transports the case and places in softening the modification pond, and the side that the pencil board transported the case and imports and exports towards the first right flank, is the left surface towards the side that the second was imported and exported, the pencil board transports the incasement and is equipped with the pencil board groove that is used for fixed pencil board, the upper and lower both sides in pencil board groove all are equipped with the contact groove that is used for passing through gas or liquid, the contact groove link up left surface and right flank.

The pencil board is arranged in a pencil board groove in the pencil board conveying box, when the softening modification process of the pencil board is carried out, the pencil board conveying box is positioned in a softening modification pool, liquid is added into the softening modification pool through a first inlet and a second inlet until the pencil board conveying box is submerged, and at the moment, the contact grooves on the upper side and the lower side of the pencil board are filled with the liquid; after the liquid in the softening modification tank is heated by the heating net, the pencil plate can be fully contacted with the liquid, so that the pencil plate is uniformly heated, and the pencil plate is prevented from being bent due to nonuniform heating; after the hydrothermal softening process is finished, discharging liquid in the softening modification tank through the first inlet and the second inlet and introducing air into the softening modification tank, wherein the pencil board conveying box is always positioned in the softening modification tank, and the temperature in the softening modification tank is always higher due to the existence of the heating net; after air is introduced, the air is heated under the action of the heating net, so that the pencil board is dried; air enters from one of the two inlets and the other of the two inlets and the two outlets, and simultaneously takes away water vapor formed after water on the pencil board is evaporated, after the pencil board is completely evaporated to dryness, the temperature of the pencil board is further increased due to the fact that the pencil board is not influenced by the heat absorption of the water evaporation, and therefore the pencil board enters a high-temperature denaturation state. In addition, the pencil board groove can play the effect of clamp plate through fixed to both sides around the pencil board, avoids the bending of pencil board through the both sides of pressing the pencil board all the time in the heating process, compares in the method of direct through monoblock clamp plate extrusion pencil board, guarantees the suppression effect to the pencil board when this scheme can guarantee the sufficient contact of pencil board and liquid or high temperature air. Hydrothermal softening, drying and high-temperature denaturation of the pencil board can be continuously completed through the device, the temperature of the pencil board cannot be greatly reduced in the process, the pencil board after treatment is easy to cut, and meanwhile, the pencil board is not easy to bend.

Preferably, the first inlet and the second inlet are connected with each other by a connecting pipeline outside the softening and modifying tank; the connecting pipeline comprises a gas pipeline and a liquid pipeline which are parallel, a section of connecting pipeline between the liquid pipeline and the first inlet and outlet is a water outlet pipeline, a section of connecting pipeline between the liquid pipeline and the second inlet and outlet is a water inlet pipeline, a fan used for pushing air to move is installed in the gas pipeline, and a water pump used for guiding liquid from the water outlet pipeline to the water inlet pipeline is installed in the liquid pipeline; if the liquid or gas in the softening modification tank is always in a non-circulating state, the temperature of the part, close to the heating net, of the pencil plate is higher than that of the part, far away from the heating net, of the pencil plate in the heating process, so that the pencil plate is heated unevenly and is easy to bend; and drive the circulation of gas and liquid respectively through fan and water pump in this scheme, can guarantee that the temperature everywhere in the modified pond of softening is comparatively even, and the difficult emergence of pencil board is crooked in the heating process. The first inlet and the second inlet are connected through the connecting pipeline, so that the liquid or gas leaving the softening and modifying pool can be returned to the softening and modifying pool again, and the waste of the liquid and the gas is avoided; in the hydrothermal softening process, softening auxiliary agent can be added into the softening modification pool to improve the softening effect, so that the scheme also has the function of avoiding the dilution of the softening auxiliary agent; and because the liquid or gas entering the softening and modifying pool is heated, the temperature in the softening and modifying pool cannot be greatly reduced.

Preferably, the liquid pipeline is connected with a water storage tank; when the hydrothermal softening process is finished, all liquid in the softening modification tank needs to be discharged, and at the moment, the discharged liquid can be stored in the water storage tank; after the pencil board is dried and modified at high temperature, when a new pencil board needs to be hydrothermally softened again, liquid in the water storage tank is guided into the softening and modifying tank through the water pump, so that the liquid is recycled, and waste is avoided.

Preferably, the gas pipeline is provided with a condensing plate and is also connected with a liquid guide channel for guiding condensed liquid to the water storage tank; when the pencil board is in dry process, the gas of circulatory motion can be with the moisture evaporation water vapor on the pencil board and take to the gas pipeline, and water vapor is in can condense into the liquid drop and constantly drip to the liquid reserve tank on the condenser plate to avoid moisture reentry to soften the modification tank, thereby make the moisture in softening the modification tank constantly reduce, and the comdenstion water gets into and can guarantee in the liquid reserve tank that the content of moisture does not have obvious change in the whole device, thereby avoided the concentration change of supplementary softener.

Preferably, the water inlet pipeline is provided with an activated carbon filter plate; sawdust inevitably exists on the pencil board, falls off from the pencil board in the hydrothermal softening process and enters the connecting pipeline along with water flow, and the activated carbon filter plate can adsorb the fallen sawdust; when the pencil board is in the drying process, the flowing gas can also dry the wood chips on the activated carbon filter board; after the drying is finished, the activated carbon filter plate can be taken down, and the collected and dried sawdust can be used for heating an oven in the subsequent drying process of the pencil glue; meanwhile, the active carbon filter plate can also avoid the problem that the content of impurities is continuously improved due to continuous cyclic utilization of liquid.

Preferably, a square groove for fixing the pencil board conveying box is arranged at the bottom of the softening modification pool; the square groove can be used for determining the direction and the position of the pencil plate conveying box, so that the direction of the contact groove of the pencil plate is consistent with the flowing direction of gas and liquid, and the pencil plate is enabled to obtain a better heating effect.

Preferably, a hanging ring convenient for the pencil board conveying box to be hung is arranged on the upper side surface of the pencil board conveying box; the lifting ring can help the pencil board conveying box to convey more conveniently.

Therefore, the invention has the following beneficial effects: (1) the hydrothermal softening, drying and high-temperature modification can be continuously completed, and the pencil plate is always kept at a higher temperature in the process, so that the staged heating is not needed, the processing period of the pencil plate is greatly shortened, and the cost is reduced; (2) the recycling of liquid and gas can be realized, the waste is avoided, the obvious temperature reduction in a softening and modifying tank caused by introducing new gas and liquid is avoided, and the concentration reduction of an auxiliary softening agent in the liquid can also be avoided; (3) the wood chips on the pencil board can be collected for subsequent processes; (4) the liquid can be purified, and the continuous increase of impurities in the liquid in the circulating process is avoided; (5) the pencil board transports the case and transports conveniently.

Drawings

Fig. 1 is a top view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a schematic view showing a structure of the pencil board conveying box of the invention.

In the figure: 1. the pencil board conveying box comprises a pencil board conveying box 2, a softening modification pool 3, a square groove 4, a hanging ring 5, a first inlet and outlet 6, a second inlet and outlet 7, a heating net 8, an impeller 9, a gas pipeline 10, a liquid pipeline 11, a water outlet pipeline 12, a water inlet pipeline 13, an electric control door 14, an inflation channel 15, a fan 16, a water pump 17, a water storage pool 18, a condensation plate 19, a liquid guide channel 20, an activated carbon filter plate 21, a pencil board groove 22 and a contact groove.

Detailed Description

The invention is further described with reference to the following detailed description and accompanying drawings.

In the embodiment shown in fig. 1-3, a pencil board softening and modifying device comprises a pencil board conveying box 1 and a softening and modifying pool 2; the bottom of the softening modification pool is provided with a square groove 3 for fixing the pencil plate conveying box, the upper side surface of the pencil plate conveying box is provided with a hanging ring 4 convenient for the pencil plate conveying box to be hung, and the pencil plate conveying box can be placed at the bottom of the softening modification pool through a crane; a first inlet and outlet 5 is formed in the right side of the softening and modifying tank, a second inlet and outlet 6 is formed in the left side of the softening and modifying tank, and the first inlet and outlet is located at the bottom of the softening and modifying tank; a heating net 7 which is opposite to the first inlet and the second inlet is arranged in the softening modification tank; impellers 8 for pushing the liquid from the left side to the right side are further arranged at the first inlet and the second outlet; the first inlet and the second inlet are connected with each other through a connecting pipeline outside the softening modification tank; the connecting pipeline comprises a gas pipeline 9 and a liquid pipeline 10 which are parallel, one section of the connecting pipeline between the liquid pipeline and the first inlet and outlet is a water outlet pipeline 11, one section of the connecting pipeline between the liquid pipeline and the second inlet and outlet is a water inlet pipeline 12, two sides of the liquid pipeline are provided with electric control doors 13 capable of controlling the opening and closing of the liquid pipeline, the gas pipeline is connected with an inflation channel 14 for introducing air, and the inflation channel is connected with an air compressor; a fan 15 for pushing air to move is arranged in the gas pipeline, and a water pump 16 for guiding liquid from the water outlet pipeline to the water inlet pipeline is arranged in the liquid pipeline; the lower side of the liquid pipeline is connected with a water storage tank 17 which can be opened and closed, and a water storage tank pump which can pump liquid from the water storage tank into the liquid pipeline is arranged in the water storage tank; a condensing plate 18 is arranged in the gas pipeline, the condensing plate is obliquely arranged above the gas pipeline, and the lower side of the gas pipeline is also connected with a liquid guide channel 19 for guiding condensed liquid to the water storage tank; the water inlet pipeline is provided with an active carbon filter plate 20, and the active carbon filter plate is inserted in the water inlet pipeline; the softening modification tank is also provided with a thermometer and an air pressure gauge which are convenient for observing the temperature and the air pressure in the softening modification tank.

The shape of the pencil board conveying box is similar to a cuboid, the side face of the pencil board conveying box facing the first inlet and outlet is a right side face, the side face of the pencil board conveying box facing the second inlet and outlet is a left side face, a plurality of pencil board grooves 21 which are arranged at intervals and used for fixing pencil boards are arranged in the pencil board conveying box, the groove width of each pencil board groove is the same as the thickness of each pencil board, the pencil board grooves are arranged on the front side and the rear side face of the pencil board conveying box, and the pencil boards are horizontally inserted into the pencil board grooves; the upper side and the lower side of the pencil board groove are both provided with contact grooves 22 used for gas or liquid to pass through, and the contact grooves penetrate through the left side face and the right side face.

In the using process of the device, the pencil plates are firstly inserted into the pencil plate grooves of the pencil plate conveying box respectively, then the pencil plate conveying box is hung into the square groove of the softening modification pool through the crane, the right side face of the pencil plate conveying box faces to the first inlet and outlet, and the left side face of the pencil plate conveying box faces to the second inlet and outlet. And then the liquid storage tank is opened, liquid in the liquid storage tank is continuously pumped into the liquid pipeline through the liquid storage tank pump, and meanwhile, the liquid is pushed to the water inlet pipeline by the water pump in the liquid pipeline and finally enters the softening modification tank. And after the liquid in the softening modification tank submerges the pencil plate conveying box, closing the liquid storage tank and the liquid storage tank pump. At the moment, under the drive of the water pump and the impeller, the liquid continuously enters the softening and modifying pool from the second inlet and outlet, then sequentially passes through the first inlet and outlet, the water outlet pipeline, the liquid pipeline and the water inlet pipeline and returns to the second inlet and outlet, and in the process, the heating net in the softening and modifying pool continuously heats the liquid, so that the temperature of the liquid in the whole device is continuously increased; when the heat obtained by the liquid at the heating net and the heat dissipated at the connecting pipeline and the like reach balance, the temperature of the liquid does not change any more; the temperature was observed with a thermometer, and if the temperature in the softening and modifying tank did not reach the temperature required for hydrothermal softening, the power of the heating net was increased. At the softening in-process, the subsidiary saw-dust on the pencil board can be followed the liquid stream and dropped off to following the liquid stream and removing, passing through when the liquid stream during the active carbon filter plate, saw-dust and other impurity can be adsorbed by the active carbon filter plate, thereby guarantee that liquid can keep certain cleanness in the circulation process, avoid being stained with too much impurity on the pencil board.

After the hydrothermal softening process is finished, the liquid storage tank is opened, and as the liquid storage tank is positioned at the lower side of the liquid pipeline and the first inlet and outlet are positioned at the lower side of the softening modification tank, liquid can continuously flow into the liquid storage tank from the softening modification tank; in the process, as the heating net works continuously, the temperature in the softening and modifying pool is kept at a higher value all the time, and the temperature of the pencil is not reduced obviously; after all the liquid enters the liquid storage tank, closing the water pump and the electric control doors on the two sides of the liquid pipeline; simultaneously starting a fan in the gas pipeline, and driving gas to flow through the gas pipeline, the water inlet pipeline, the second inlet and outlet, the softening and modifying pool, the first inlet and outlet and the water outlet pipeline in sequence through the fan and then return to the gas pipeline; under the action of the heating net in the softening modification tank, the temperature in the whole device is continuously raised, and under the action of high-temperature gas, the moisture on the pencil plate is continuously evaporated and is taken out of the softening modification tank along with the airflow; when the high-temperature gas with the water vapor passes through the condensing plate, part of the water vapor is condensed on the condensing plate to form liquid drops, and the liquid drops fall downwards and then return to the liquid storage tank through the liquid guide channel, so that the water content in the gas flowing in the pipeline is continuously reduced, and the total content of water in the device is kept unchanged; the condensed gas continues to move forwards, and wood dust adsorbed on the filter plate is dried when the condensed gas passes through the activated carbon filter plate; the air pressure in the softening modification tank can be observed in real time through an air pressure gauge in the softening modification tank, and when the pressure in the softening modification tank is low, gas can be injected into the device through the air compressor to increase the air pressure.

After the drying process is finished, the temperature in the softening modification tank can be increased to some extent because the pencil plate does not absorb heat caused by water evaporation, and after the temperature is stabilized again, the temperature in the softening modification tank is adjusted to the temperature required by high temperature variability by changing the power of the heating net; and after the high-temperature denaturation is finished, taking out the pencil board conveying box from the softening modification pool through a crane.

Claims

1. A pencil plate softening and modifying device is characterized by comprising a pencil plate conveying box and a softening and modifying pool, wherein a first inlet and a second inlet are respectively formed in two sides of the softening and modifying pool, and a heating net which is opposite to the first inlet and the second inlet is installed in the softening and modifying pool; the pencil board transports the case and places in softening the modification pond, and the side that the pencil board transported the case and imports and exports towards the first right flank, is the left surface towards the side that the second was imported and exported, the pencil board transports the incasement and is equipped with the pencil board groove that is used for fixed pencil board, the upper and lower both sides in pencil board groove all are equipped with the contact groove that is used for passing through gas or liquid, the contact groove link up left surface and right flank.

2. The softening and modifying device for the pencil plate as claimed in claim 1, wherein the first inlet and the second inlet are connected with each other by a connecting pipeline outside the softening and modifying pool; the connecting pipe is including parallel gas pipeline and liquid pipeline, one section connecting pipe between liquid pipeline and the first exit is outlet conduit, one section connecting pipe between liquid pipeline and the second exit is inlet conduit, install the fan that is used for promoting the air motion in the gas pipeline, install the water pump that is used for following outlet conduit direction inlet conduit with liquid in the liquid pipeline.

3. The softening and modifying device for the pencil board as claimed in claim 2, wherein a water storage tank is connected to the liquid pipeline.

4. The pencil board softening and modifying device as claimed in claim 2, wherein a condensing plate is installed in the gas pipeline, and a liquid guide channel for guiding condensed liquid to the water storage tank is further connected to the gas pipeline.

5. The softening and modifying device for the pencil board as claimed in claim 2, wherein the water inlet pipeline is provided with an activated carbon filter board.

6. A pencil plate softening and modifying device as claimed in any one of claims 1 to 5, wherein a square groove for fixing the pencil plate conveying box is arranged at the bottom of the softening and modifying pool.

7. A pencil plate softening and modifying device as claimed in any one of claims 1 to 5, wherein a hanging ring convenient for the pencil plate conveying box to be hung up is arranged on the upper side face of the pencil plate conveying box.