CN213417433U - Two-stage drying oven structure for paper mould - Google Patents

Abstract

The utility model belongs to the technical field of paper mould production, concretely relates to paper mould two-stage oven structure, including the stoving case, stoving incasement portion is equipped with the baffle, the baffle falls into first cavity and second cavity with the inside of stoving case, the stoving incasement is equipped with paper mould conveyor, paper mould conveyor includes the multilayer driving chain of tray and circulation transportation tray, every layer of driving chain includes the conveying chain of two parallels and connects the sprocket at the conveying chain tip, the tray is connected between the conveying chain of two parallels, upper and lower adjacent two-layer conveying chain is as an organic whole through one or more sprocket connection of tip, a plurality of layers of multilayer driving chain are located first cavity, a plurality of layers are located the second cavity, be equipped with the clearance that supplies the driving chain to pass through between the tip of baffle and the stoving case, the tip of stoving case is equipped with driving chain export and driving chain entry. The utility model discloses can improve the drying quality and the drying efficiency of paper mould product.

Description

Two-stage drying oven structure for paper mould

Technical Field

The utility model belongs to the technical field of paper mould production, concretely relates to paper mould two-stage oven structure.

Background

The paper mould is a solid container used for containing and limiting packaged objects, is used for links of circulation, storage, transportation and the like of commodities, and is mainly applied to transportation and packaging of the commodities. The paper mold can be used as a lunch box and tableware, and can be used as an industrial buffer package, and the development is very rapid. Paper moulds are a new type of packaging material which has been rapidly developed in recent years and are an excellent substitute for wood. The paper-plastic mould is made up through such technological steps as beating raw materials, proportioning, die pressing, baking and shaping. Since a large amount of water (about 55-60%) remains on the workpiece after press molding, the moisture content of the final product is 12-14%, and therefore, during the drying process of the workpiece, water, which is about half the weight of the workpiece, is removed, and this water is removed by heat absorption to form steam. Because the traditional drying process is in an integral oven, the molded paper-plastic molded product enters from one end of the drying oven and comes out from the other end of the drying oven, the conveying device is usually a movable placing frame capable of placing multiple layers of paper-plastic molded products, the movable placing frame is pushed in manually or can move automatically, the movable placing frame enters the oven before drying, the movable placing frame moves out of the oven after drying is completed, the paper molded product cannot be gradually dried in different layers in different positions of the oven when dried in the oven, and the drying process cannot be continuously and uninterruptedly carried out; also have in addition to adopt the individual layer transfer chain to transport paper mould product in the stoving case, use the individual layer transfer chain can make the paper mould product of stoving case once drying less, the length setting of stoving case than longer, area is big, also needs longer stoving time in addition, leads to the drying efficiency of paper mould product to hang down.

Disclosure of Invention

The utility model aims at solving the problems and deficiencies, and provides a two-stage drying oven structure of paper-plastic mold, which has reasonable design and simple manufacture and maintenance, and can continuously and rapidly carry out the drying process in two relatively independent cavities by arranging a drying box as a two-stage cavity and using a multilayer transmission chain to ensure that the paper-plastic mold product gradually and circularly moves from a first cavity to a second cavity, when the first cavity adopts a dehumidifier to dehumidify, only air with higher water content in the first cavity can be pumped away, air with higher water content in the first cavity can not influence the paper-plastic mold product with the moisture removed in the second cavity, and in addition, the paper-plastic mold product which gradually moves backwards can be less influenced by return air with water, thereby being gradually dried, and the two-stage drying oven structure of paper-plastic mold has small floor area and high drying speed, and can dry more paper-plastic mold products in the same time, the drying quality and the drying efficiency of the paper-plastic mold product can be improved, and the energy consumption is reduced.

In order to realize the purpose, the adopted technical scheme is as follows:

the utility model provides a mould two-stage oven structure is moulded to paper, includes the stoving case, stoving incasement portion is equipped with the baffle, the baffle will the inside of stoving case falls into first cavity and second cavity, the stoving incasement is equipped with mould conveyor is moulded to paper, mould conveyor is moulded to paper includes the multilayer driving chain of tray and circulation transportation tray, and every layer of driving chain includes the conveying chain of two parallels and connects the sprocket at the conveying chain tip, the tray is connected between the conveying chain of two parallels, and upper and lower adjacent two-layer conveying chain is as an organic whole through one or more sprocket connection of tip, a plurality of layers of multilayer driving chain are located first cavity, and a plurality of layers are located the second cavity, the tip of baffle with be equipped with the clearance that supplies the driving chain to pass through between the stoving case, the tip of stoving case is equipped with driving chain export and driving chain entry.

Further, in foretell two-stage oven structure of mould is moulded to paper, the baffle is the cross slab, the cross slab will the inside of stoving case falls into upper cavity and lower floor's cavity, and upper cavity is first cavity, and lower floor's cavity is the second cavity, the transmission from the top down of multilayer driving chain, a plurality of layers in upper portion of multilayer driving chain are located the upper cavity, and a plurality of layers in lower part are located the cavity of lower floor, the one end of cross slab with be equipped with the clearance that supplies the driving chain to pass through between the lateral wall of stoving case.

Further, in the two-stage oven structure for the paper-plastic mold, an air supply outlet in the upper cavity is communicated with an air supply pipe of a drying dehumidifier, an air return inlet is communicated with a moisture extraction outlet of the drying dehumidifier, a dehumidification circulating fan is arranged in the first cavity, and a paper-plastic mold product is subjected to primary drying and moisture extraction in the upper cavity; and the air supply outlet in the lower-layer cavity is communicated with an air supply pipe of the dryer, the air return inlet is communicated with an air return pipe of the dryer, and the paper-plastic mold product is gradually dried and molded in the lower-layer cavity from top to bottom.

Further, in the above two-stage drying oven structure for the paper-plastic mold, the drying and dehumidifying machines, the drying machines and the dehumidifying circulating fans are all arranged in a plurality of numbers, the drying and dehumidifying machines are arranged at intervals from one end to the other end at the outer side part of the upper cavity, the drying machines are arranged at intervals from one end to the other end at the outer side part of the lower cavity, and the dehumidifying circulating fans are arranged at intervals from one end to the other end in the upper cavity.

Further, in the above two-stage baking oven structure for the paper-plastic mold, a solar hot air assembly is further arranged outside the drying box, and the solar hot air assembly comprises a solar heat collecting pipe header, a dehumidifier, a main circulating fan and a sub circulating fan which are sequentially connected.

Further, in the above two-stage oven structure for the paper-plastic mold, the inner side of the conveying chain is connected with a chain accessory, the middle parts of the two ends of the tray are provided with connecting lugs, and the connecting lugs are hinged with the chain accessory through pin shafts.

Further, in the above two-stage oven structure for paper-plastic mold, the drying box is a cavity surrounded by a heat-insulating shell.

By adopting the technical scheme, the beneficial effects are as follows:

the utility model discloses a two-stage drying oven structure of paper-plastic mold, reasonable in design, the preparation is maintained simply, through setting up the stoving case as two-stage cavity, and use multilayer driving chain to make the paper-plastic mold product circulate from first cavity to second cavity step by step, can make the paper-plastic mold product accomplish preliminary drying and hydrofuge at first in the first cavity, then move to the second cavity and gradually dry and shape from top to bottom, can make the drying process order go on in relatively independent two cavities incessant fast in succession, when the paper-plastic mold product preliminarily dries and hydrofuge in the first cavity, because the higher water content of the paper-plastic mold product this moment, lead to the air water content in the first cavity to be higher, when adopting the dehumidifier to dehumidify, can only take the higher air of the water content in the first cavity away, avoid taking the relatively drier air in the second cavity away in the lump, when the paper-plastic mold product gradually dries and shapes in the second cavity, higher air of water content can not influence the paper mould product that has taken off moisture in the second cavity in the first cavity, and the paper mould product of progressively backward motion can receive the influence of moisture return air less in addition to progressively by the drying, use the utility model discloses a paper mould two-stage oven structure, area is little, and drying speed is fast, can dry the paper mould product of more quantity in the same time, can improve the drying quality and the drying efficiency of paper mould product to reduce energy consumption.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. The drawings are intended to depict only some embodiments of the invention, and not all embodiments of the invention are limited thereto.

Fig. 1 is one of the structural schematic diagrams of looking ahead of the two-stage oven structure of paper-plastic mold according to the utility model discloses an embodiment.

Fig. 2 is a second schematic view of the two-stage oven structure for paper-plastic molding according to an embodiment of the present invention.

Fig. 3 is one of the schematic structural diagrams in overlooking of the two-stage oven structure for paper-plastic mold according to the embodiment of the present invention.

Fig. 4 is a second schematic top view of a two-stage oven structure for paper-plastic molding according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a multi-layer transmission chain according to an embodiment of the present invention.

Number in the figure:

100 is a drying box, 101 is a transverse clapboard, 102 is an upper-layer cavity, 103 is a lower-layer cavity, 104 is a left-side cavity, 105 is a right-side cavity, 106 is a longitudinal clapboard, 200 is a paper-plastic mold conveying device, 201 is a conveying chain, 202 is a chain wheel, 203 is a chain accessory, 300 is a tray, 400 is a drying dehumidifier, 500 is a dryer, 600 is a solar hot air assembly, and 700 is a dehumidification circulating fan.

Detailed Description

The embodiments of the present invention will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art.

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for describing various elements of the present invention, and do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

It should be noted that when an element is referred to as being "connected," "coupled," or "connected" to another element, it can be directly connected, coupled, or connected, but it is understood that intervening elements may be present therebetween; i.e., positional relationships encompassing both direct and indirect connections.

It should be noted that the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.

It should be noted that terms indicating orientation or positional relationship such as "upper", "lower", "left", "right", and the like, are used only for indicating relative positional relationship, which is for convenience of describing the present invention, and not that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation; when the absolute position of the object to be described is changed, the relative positional relationship may also be changed accordingly.

Referring to fig. 1 and 5, the application discloses a two-stage drying oven structure for a paper-plastic mold, which comprises a drying box, a baffle is arranged in the drying box, the baffle divides the inside of the drying box into a first cavity and a second cavity, a paper-plastic mold conveying device is arranged in the drying box, the paper-plastic mold conveying device comprises a tray and a multi-layer transmission chain of a circulating transport tray, each layer of transmission chain comprises two parallel transmission chains and a chain wheel connected to the end part of each transmission chain, the tray is connected between the two parallel transmission chains, the two adjacent layers of transmission chains are connected into a whole through one or more chain wheels at the end part, a plurality of layers of the multi-layer transmission chain are positioned in the first cavity, the plurality of layers of transmission chains are positioned in the second cavity, a gap for the transmission chain to pass through is arranged between the end part of the baffle and the drying box, and the end part of the drying. The two-stage drying oven structure for the paper-plastic mold is reasonable in design and simple in manufacturing and maintenance, the drying oven is set to be a two-stage cavity, the paper-plastic mold product is enabled to gradually and circularly move from the first cavity to the second cavity by using the multilayer transmission chain, the paper-plastic mold product can be firstly subjected to preliminary drying and moisture removal in the first cavity and then is moved into the second cavity to be gradually dried and formed from top to bottom, the drying process sequence can be continuously and rapidly carried out in two relatively independent cavities, when the paper-plastic mold product is subjected to preliminary drying and moisture removal in the first cavity, the moisture content of air in the first cavity is higher due to the higher moisture content of the paper-plastic mold product at the moment, when the moisture is removed by adopting the moisture extractor, only the air with higher moisture content in the first cavity can be extracted, the relatively drier air in the second cavity is prevented from being extracted together, when the paper-plastic mold product is gradually dried and formed in the second cavity, higher air of water content can not influence the paper mould product that has taken off moisture in the lower floor's cavity in the first cavity, and the paper mould product of progressively backward motion can receive the influence of moisture return air less in addition to progressively by the drying, so use the utility model discloses a paper mould two-stage oven structure, area is little, and drying speed is fast, can dry the paper mould product of more quantity in the same time, can improve the drying quality and the drying efficiency of paper mould product to reduce energy consumption.

In this embodiment, preferably, the baffle is the cross slab, the cross slab falls into upper cavity and lower floor's cavity with the inside of stoving case, the upper cavity is first cavity, lower floor's cavity is the second cavity, multilayer driving chain from the top down transmits, because the hot-air that contains moisture can the upward movement, can guarantee that the paper that progressively moves down moulds the mould product and can receive the influence of moisture return air less, thereby progressively by drying, can further improve drying efficiency, a plurality of layers in upper portion of multilayer driving chain are located the upper cavity, a plurality of layers in lower part are located the cavity of lower floor, be equipped with the clearance that supplies the driving chain to pass through between the one end of cross slab and the lateral wall of stoving case. In other embodiments, the partition plate may also be a longitudinal partition plate, and the longitudinal partition plate divides the interior of the drying box into a left-side cavity and a right-side cavity. But divide into the stoving case about the cavity is compared and divide into the cavity about, can make the space utilization in the stoving case better, can make the effective stoving route of paper plastic film product on the driving chain more, make this oven structure area little, and the upper and lower floor driving chain all moves down, and it is effectual to dry.

In this embodiment, preferably, an air supply outlet in the upper cavity is communicated with an air supply pipe of the drying dehumidifier, and an air return inlet is communicated with a moisture extraction outlet of the drying dehumidifier, in this embodiment, the dehumidifying dryer heats air by adopting a heat pump and discharges moisture in return air by adopting condensation, a fan for conveying hot air is further arranged in the dehumidifying dryer, a dehumidifying circulating fan is arranged in the first cavity and can accelerate drying and accelerate discharge of humid hot air, and a paper-plastic mold product is primarily dried and dehumidified in the upper cavity; supply-air outlet and the blast pipe intercommunication of drying-machine in the cavity of lower floor, the return-air inlet communicates with the return-air duct of drying-machine, the shaping is progressively dried from the top down to the paper mould product in the cavity of lower floor, because the water content of the paper mould product reduces relatively in the cavity of lower floor, the water content of air reduces relatively in the cavity of lower floor, can carry out recycle to the heat energy of the hot-air in the cavity of lower floor, the drying-machine adopts the heat pump to heat the heated air in this embodiment, still be equipped with the fan of transport hot-air in the drying-machine, can also retrieve the heat in the super hot return air through the condenser.

In this embodiment, preferably, drying dehumidifier, drying-machine and dehumidification circulating fan set up to a plurality ofly, and a plurality of drying dehumidifier is from one end to other end interval arrangement in the outside of upper chamber body, and a plurality of drying-machine is from one end to other end interval arrangement in the outside of lower chamber body, and a plurality of dehumidification circulating fan are from one end to other end interval arrangement in the upper chamber body, can make the hot-blast distribution in longer upper chamber body and the lower chamber body more even.

In this embodiment, preferably, a solar hot air assembly is further disposed outside the drying box, the solar hot air assembly includes a solar heat collecting pipe header, a dehumidifier, a main circulating fan and a sub circulating fan, which are connected in sequence, the solar heat collecting pipe header is used for generating high-temperature and high-pressure gas, the principle of generating hot air is similar to that of the solar heating system with application number 2013101772565, the dehumidifier is used for removing moisture in the high-temperature and high-pressure gas, an air outlet pipe of the dehumidifier is communicated with an air inlet of the main circulating fan, an air outlet of the main circulating fan is communicated with an air inlet of the sub circulating fan, and an air outlet of the sub circulating fan is communicated with air inlets of the upper cavity and the lower cavity. The solar energy is used as a heat source, which is different from the common fossil fuel, the common fossil fuel such as coal, electricity, oil, gas and the like is burnt to generate heat, so that air can be polluted, the cost is high, and the solar energy utilizes sunlight to generate energy, so that the solar energy is pollution-free, renewable and pollution-free to the environment. The energy consumption cost of the drying box of the embodiment is half of that of coal burning (if the price of anthracite exceeds 1000 yuan per ton, the energy consumption cost is one third of that of coal burning). The solar hot air assembly can work for 0-12 hours in spring, 0-14 hours in summer, 0-12 hours in autumn and 0-10 hours in winter. Except in rainy days, the solar hot air assembly can stably reach the maximum long-time working efficiency. When the solar hot air assembly works, the energy consumption of the equipment is extremely low (if the production set data cannot be met due to the extreme hot solar heating effect in rainy days, the dryer and the dehumidifying dryer are intelligently involved in supplementing a heat source), after the solar hot air assembly is added, the daytime power consumption of the equipment can be reduced, the daytime electric charge is higher, and therefore the running cost of the equipment can be greatly reduced.

In this embodiment, preferably, the inner side of the conveying chain is connected with a chain accessory, and the middle parts of the two ends of the tray are provided with connecting lugs which are hinged with the chain accessory through pin shafts. The connecting lugs in the middle of the tray are connected to the chain accessories in a hinged mode, when the transmission chain moves circularly, no matter how the transmission chain changes direction, the front face of the tray hung on the chain accessories can face upwards all the time, and the tray can adapt to various transmission and transfer environments.

In this embodiment, preferably, the stoving case is the cavity that is enclosed by the heat preservation casing, can reduce heat loss.

While the above description has described in detail the preferred embodiments for carrying out the invention, it should be understood that these embodiments are presented by way of example only, and are not intended to limit the scope, applicability, or configuration of the invention in any way. The scope of the invention is defined by the appended claims and equivalents thereof. Many modifications may be made to the foregoing embodiments by those skilled in the art in light of the teachings of the present disclosure, and such modifications are intended to be within the scope of the present disclosure.

Claims (7)

1. A two-stage baking oven structure of a paper-plastic mold is characterized by comprising a drying box, a clapboard is arranged inside the drying box, the inner part of the drying box is divided into a first cavity and a second cavity by the clapboard, a paper-plastic mould conveying device is arranged in the drying box, the paper-plastic mold conveying device comprises a tray and a plurality of layers of transmission chains for circularly conveying the tray, each layer of transmission chain comprises two parallel transmission chains and a chain wheel connected with the end part of each transmission chain, the tray is connected between two parallel transmission chains, the two layers of transmission chains which are adjacent up and down are connected into a whole through one or more chain wheels at the end part, the multilayer transmission chain is characterized in that the plurality of layers are located in the first cavity and the second cavity, a gap for the transmission chain to pass through is formed between the end part of the partition plate and the drying box, and a transmission chain outlet and a transmission chain inlet are formed in the end part of the drying box.

2. The two-stage oven structure for the paper-plastic mold according to claim 1, wherein the partition plate is a transverse partition plate, the transverse partition plate divides the inside of the drying box into an upper cavity and a lower cavity, the upper cavity is a first cavity, the lower cavity is a second cavity, the multi-layer transmission chain is transmitted from top to bottom, a plurality of layers of the upper part of the multi-layer transmission chain are positioned in the upper cavity, a plurality of layers of the lower part of the multi-layer transmission chain are positioned in the lower cavity, and a gap for the transmission chain to pass through is arranged between one end of the transverse partition plate and the side wall of the drying box.

3. The two-stage drying oven structure for the paper-plastic mold according to claim 2, wherein an air supply outlet in the upper cavity is communicated with an air supply pipe of a drying dehumidifier, an air return inlet is communicated with a moisture extraction outlet of the drying dehumidifier, a dehumidification circulating fan is arranged in the first cavity, and the paper-plastic mold product is subjected to primary drying and moisture extraction in the upper cavity; and the air supply outlet in the lower-layer cavity is communicated with an air supply pipe of the dryer, the air return inlet is communicated with an air return pipe of the dryer, and the paper-plastic mold product is gradually dried and molded in the lower-layer cavity from top to bottom.

4. The two-stage drying oven structure for the paper-plastic mold according to claim 3, wherein the drying dehumidifier, the dryer and the dehumidification circulating fan are all provided in plurality, the drying dehumidifiers are arranged at intervals from one end to the other end on the outer side part of the upper cavity, the dryers are arranged at intervals from one end to the other end on the outer side part of the lower cavity, and the dehumidification circulating fans are arranged at intervals from one end to the other end in the upper cavity.

5. The two-stage drying oven structure for the paper-plastic mold according to claim 3, wherein a solar hot air assembly is further arranged outside the drying oven, and comprises a solar heat collecting pipe header, a dehumidifier, a main circulating fan and a sub circulating fan which are sequentially connected.

6. A two-stage oven structure for a paper-plastic mold as claimed in claim 1, wherein a chain attachment is connected to the inner side of the conveying chain, and connecting lugs are provided in the middle of both ends of the tray and are hinged to the chain attachment through pin shafts.

7. The two-stage oven structure for the paper-plastic mold according to claim 1, wherein the drying box is a cavity surrounded by a heat-insulating shell.

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