TWI651180B - Method for manufacturing fibrous paper-plastic disc type product - Google Patents

Abstract

The invention discloses a method for manufacturing a fiber-based paper-plastic disk type product, which comprises a pulp plate as a material, and is sent to a material machine to cut out into an initial embryo plate, wherein the original embryo plate is composed of at least one preliminary material which is intended to be manufactured into a fibrous product. Then, the surface of the primordial plate is coated with the solution containing the additive, and then selectively allowed to stand, mainly to achieve the osmotic balance of the solution inside the primordial plate; then the blast plate is hot pressed by a hot press. The raw slab is pressed and dried to form a dry-formed sheet, and each of the original blanks on the original primordial sheet is pressed to form a dry molded product of the fibrous product to be manufactured, and finally the dry-formed sheet is sent. Cutting into the edge cutting machine, each dry molded product on the dry forming plate is formed into a fibrous product.

Description

Method for manufacturing fibrous paper-plastic disc type product

The invention relates to a method for manufacturing a fibrous paper-plastic disc type product, in particular to a method for manufacturing a fibrous paper-plastic disc type product which is particularly suitable for manufacturing a side oblique angle and a small depth (shallow).

According to the plastic products made of plastic materials, it is easy to release toxins, which cause serious pollution to the environment, difficult to recycle and reuse, or difficult to recycle and recycle, and the cost of recycling is so large, etc. Global environmental protection has caused serious harm. In today's era of high environmental awareness, the search for non-toxic, easy-to-recycle materials has become the mainstream of research and practical applications.

At present, it has been developed to use a pulp fiber material and/or a plant fiber material as a slurry material, and the slurry is adhered by a suction mold, and then the product is manufactured by hot pressing and setting technology, and is a "plastic product". The distinction is generally referred to as "molded products." Molded products have the advantages of easy recycling, re-manufacture and reuse, and are in line with the trend of environmental protection and energy conservation and carbon reduction. Therefore, they are quickly accepted by the business community and the general public, and molded products are often seen, for example, bowls, plates, Cup lids, packaging materials, shock absorbers, mats, etc. - and other products are gradually adopted.

Generally, the manufacturing method of the conventional molded product is as shown in FIG. 1, and the following steps must be performed:

1. Beating: The collected pulp fiber material and/or plant fiber material is placed in a beater and water disintegration, which is a step of coarse comminution. Recently, pulp fiber materials and/or plant fiber materials have been previously consolidated into a sheet-like pulp sheet of a certain area for convenient storage and transportation. Therefore, the pulping step may also be to put the pulp sheet into a beater and water to disintegrate.

2. Refining: The water material after the pulping and disintegration is sent to a refiner to grind into a thicker water of finer fibers.

3. Pulping: Add suitable additives and dilute to the appropriate slurry ratio with water to form a slurry.

4. Playing into the pulp pool: stored in a slurry tank, and then the slurry is sent to the suction tank machine for recycling.

5. Forming into a wet preliminary blank: The slurry is sucked into the forming mold by a suction system to form a wet preliminary blank.

6. Hot pressing is a dry setting product: the wet initial blank is sent into a hot pressing mold, and after being heated and pressurized, it is dried and shaped into a dry setting product.

7. Renovation of the finished product of the molded product: the dried shaped product is sent to all side machines to cut off the edge material, and becomes the finished product of the molded product of the expected appearance.

In the whole manufacturing process, the material (such as the pulp board) is beaten, and then the refining, slurrying and spinning into the pulping tank are combined into a pulping system, followed by suction molding and hot pressing setting into a molding system. The final trimming is a system of all sides. In the conventional manufacturing technology, in order to use a slurry to form a molded product, a pulping system, a molding system, and a trimming system are steps that cannot be omitted during manufacture.

The present inventors are specialized in the design and manufacture of molded products. In the experience of long-term contact with molded products, it has been recognized that the above-mentioned conventional molded product manufacturing methods have the following drawbacks:

1. High equipment investment cost: The manufacturing method of the conventional molded product, the manufacturing equipment to be matched must have the conveying pipeline, the vacuum system equipment and the suction pipe, the beater, the pulper, the pulping machine, the slurry tank, the transfer pump And the purchase of the valve, at the same time must also set up a variety of molding molds and hot-pressing molds, the installation cost is relatively high investment costs and product manufacturing costs.

2. Great energy consumption: the manufacturing method of the conventional molded product, the operation operation of the various processes such as beating, refining, slurrying, slurry pool to suction tank, and the operation cost of fluid transportation, and heating and drying the wet preliminary billet The large amount of water carried during molding, the hot pressing time generally takes 90 to 120 seconds, so it consumes a lot of water and the energy required to dry the wet preliminary billet, and the overall cost of the hydroelectric energy in the process is quite large.

3. Large installation space: The manufacturing method of the conventional molded product is composed of a conveying pipe, a vacuum system equipment and a suction pipe, a beater, a pulper, a pulper, a slurry tank, a transfer pump, and a valve. The pulping system must have a large regional space to accommodate, so that the investment cost and manufacturing cost are high.

4. There are environmental concerns: the manufacturing method of the conventional molded product, because there is the loop slurry of the pulping system and the white water after the suction molding, the waste water is generated, so the wastewater treatment device or the wastewater recovery system must be relatively set up. The cost is the same as the investment cost and manufacturing cost, and there are environmental concerns when dealing with wastewater.

5. Working hours and capacity constraints: The manufacturing method of the conventional molded products, the key bottleneck is the length of the hot pressing setting step, because the wet molding material in the manufacturing method of the conventional molded product contains a large amount of water, so The hot pressing time is bound to be reduced, resulting in considerable restrictions on working hours and production capacity.

In manufacturing larger sizes (for example: higher and / or thicker shock absorbers, mats) or more complex appearance (for example: packaging materials for more housing units) or higher depth (for example: deep bowl) In the molding of the product, since the time of the suction molding and the hot press forming are also required to be long, it is appropriate to manufacture the above-mentioned conventional molded product manufacturing method because of its work convenience and high final product yield. The advantages, as well as the environmental protection and energy saving advantages derived from the products, can be higher than the above-mentioned defects, so it is an excellent manufacturing method.

However, when a product with a small depth (shallow) is to be produced (for example, a shallow dish), since the material for suctioning and the working time are relatively small, it is inconvenient and wasteful to use the manufacturing method of the above-mentioned conventional molded product. Therefore, different and appropriate manufacturing methods should be developed for products with small depth (shallow).

In view of the above deficiency, the inventors have intensively conceived research and development improvements in order to improve the above-mentioned defects, and after a long period of efforts, the present invention has been produced.

Accordingly, it is a primary object of the present invention to provide a method of making a fibrous paper-and-disk type product which is particularly suitable for the manufacture of a side-angled angle and a small depth (shallow).

Another main object of the present invention is to provide a fibrous paper which can reduce equipment investment cost, greatly save energy consumption, reduce equipment installation space, have environmental protection advantages, greatly shorten working hours, increase production capacity, and improve product quality and strength. Plastic disc type product manufacturing method.

In order to achieve the above object, the present invention provides a method for manufacturing a fibrous paper-plastic disk type product, which adopts at least the following steps:

(1) conveying a flat sheet-like pulp sheet into a material machine, and cutting the pulp sheet into an original embryo sheet, the raw sheet being composed of at least one or more preform material to be manufactured into a fibrous product;

(2) applying an additive-containing solution to the surface of the original embryo;

(3) sending the coated primordial plate to a hot press, and heating and pressurizing the primordial plate by the hot press, so that the blast plate is pressed and dried to form a dry formed plate, in the process, Each of the original raw materials is pressed out of the appearance of the fibrous product to be manufactured, and becomes a dry molded product;

(4) The dry-formed sheet is fed into the edge machine, and the trimming material is cut according to the size of the fibrous product to be produced, so that the original dry molded product is formed into a fibrous product.

In the above method for manufacturing a cellulosic plastic disk type product, the coated primordial plate can be first allowed to stand, so that the solution received by the blast plate can be further uniformly penetrated into the interior to achieve the effect of osmotic balance, and then The pre-balanced primordial plate is sent through the hot press. In the above method for manufacturing a fibrous paper-type disc type product, the pulp sheet can be conveyed by a first conveyor, and the pulp sheet is sequentially introduced into the cutter.

In the above method for producing a fibrous paper-type disc type product, the primordial sheet can be conveyed and coated by a second conveyor.

The dry-formed sheet is fed into the edge machine, and the trimming material is cut according to the size of the fibrous product to be produced, so that the original dry molded product is formed into a fibrous product.

In order to achieve the above object, the technical means adopted by the present invention and the practical improvement effect can be achieved. The following preferred embodiments are described in detail with reference to the accompanying drawings, and the entire disclosure is fully understood.

The invention relates to a method for manufacturing a fibrous paper-plastic disc type product, which is particularly suitable for the manufacture of a fibrous product with a large side oblique angle and a small depth (shallow), which means that the side angle is larger. A fiber product with a relatively small depth (shallow). For example, a "shallow dish" is an example of a "typically a large side angle and a small depth (shallow)", and refers to a "fibrous product". Means that the pulp fiber material and/or the plant fiber material are mixed into the original material, and the product finally produced after being manufactured by the manufacturing method of the present invention (that is, the "fibrous paper-plastic disk type product" in the name of the present invention) The manufacturing method of the invention does not utilize the suction molding technique, so it is also referred to as "cellulosic product" or "fibrous paper-plastic disc type product", and is distinguished from "plastic product" and "molded product". The invention must prepare a "pulp board" as a starting material before the manufacture, and the "pulp board" referred to herein is a mixture of pulp fiber material and/or plant fiber material as a raw material, and is processed and consolidated into a certain amount. The flat plate is used for convenient storage and transportation. When it is consolidated into a pulp plate, the length, width and height of the plate can be selected. Because the pulp board is used as a material for further processing, it is not completely dry when consolidated, but it is already a low-humidity material.

Referring to Figures 2 to 5, the manufacturing method of the present invention uses the pulp sheet 1 as a starting material, and then undergoes the following manufacturing steps:

1. As shown in FIG. 2 and FIG. 3, the first conveyor 2 transports the flat sheet-like pulp sheets 1 one by one, so that the pulp sheet 1 sequentially enters all the material machines 3, and the cutting machine 3 is manufactured according to the requirements. The length and width of the fibrous product are increased by a small amount to be pressed and trimmed, and the pulp sheet 1 is directly cut out from an original blank 4; please refer to FIG. 6 together, the primary embryo 4 is composed of at least one The above primary blank 41 is composed, and the size of the primary blank 41 is slightly larger than the size of the final fibrous product to be manufactured. The pattern of the present invention is expressed by six primary blanks 41, but is not limited; If the virgin slab 4 comprises a plurality of primaries 41, the adjacent primaries 41 may be disconnected or connected, and the "---disconnect---" refers to The adjacent space of the primary blank 41 has been cut by the cutter 3, but all the primary blanks 41 are still assembled into a flat shaped embryonic plate 4; the "---connection---" is It refers to the connection between the adjacent blanks 41 which is still in the minimum contact, and the rest is cut by the cutting machine 3;

2. Next, the priming plate 4 is sent to a second conveyor 5 for transporting forward. During the process, the surface of the primordial plate 4 is coated with a solution containing an additive, as shown in FIG. "---Coating---" means that the additive-containing solution is subjected to a "spray coating" operation or a "paint coating" operation or a "dip coating" operation by manual operation or mechanical operation, so that the additive is contained. The solution is adhered to the surface of the original blank 4; more specifically, "---coating---" means that it can be applied by manual spray coating (for example, spray coating by hand spray gun) or mechanical Spray coating (such as spray coating automatic spray coating), can also be by manual coating (such as manual brush coating) or mechanical coating (such as roller automatic coating ), may also be by manual dip coating (for example, manual setting, dip coating) or mechanical dip coating (for example, by dip coating), in which the additive-containing solution can be adhered to the original embryo 4 The operation on the surface is referred to as "---coating---"; FIG. 3 discloses that the second conveyor 5 is provided with a sprayer 6 when the first blank 4 is replaced by the second delivery When the machine 5 is conveyed through the sprayer 6, the sprayer 6 sprays the solution containing the additive onto the surface of the original embryo plate 4; the surface of the original embryonic plate 4 is coated with the solution containing the additive. The most basic function is to seal the surface of the original embryo plate 4, so as to have at least the effect of waterproofing and oil proofing, and also to apply a solution containing different (special) additives depending on the use and functional requirements of the fibrous product to be manufactured; It must be emphasized that the coating operation of the original blank 4 is applied to the top surface of the original blank 4 (as shown in FIGS. 3 and 9 to spray the top surface of the original blank 4). In addition, it is also possible to increase the coating operation on the bottom surface of the original blank 4 as necessary;

3. Next, the priming plate 4 through the coating operation can be first sent to a stationary table 62 for rest, so that the solution received by each primordial plate 4 can be further uniformly penetrated into the interior to achieve the effect of osmotic balance. Therefore, the standing time of the original embryo plate 4 can be selected according to the size of the object, and can be dispersed and tiled when standing (if the space is sufficient), or can be stacked (if the space is not enough), and this A "stationary balance" step can be performed selectively or not (described later);

4. Next, as shown in FIGS. 2 and 4, the pre-balanced primordial plate 4 is sent to a hot press 7, and the reticle 4 is directly heated and pressurized by the hot press 7. The raw slab 4 is pressed and dried and formed into a dry-formed sheet 8. In the process, each of the original primaries 41 is pressed out of the appearance of the fibrous product to be manufactured, but the top periphery has remaining material. That is, after the press drying by the hot press 7, each of the flat preforms 41 has been pressed to produce a dry molded article 81 having a three-dimensional shape with an expected depth and a side angle, but the top surface has some circumference. Excess material exists, because the humidity has been zero at this time, so the whole is called dry forming plate 8;

5. Next, the dry-formed sheet 8 is fed into the edge machine 9, and the trimming material is cut for each of the dry molded articles 81, which is carried out according to the outer diameter or the length and width of the fibrous product to be produced. The material is cut off, so that as shown in Fig. 7, the original dry molded articles 81 form individual fiber products 10 (for example, shallow dishes).

In the manufacturing step disclosed in the above invention, if the final fibrous product to be manufactured is a thin object, since the solution is easily and quickly achieves osmotic balance after rolling, the "rest balance" disclosed in FIG. The "system" steps can be selectively reduced. That is, as shown in FIGS. 8 and 9, the flat sheet-like pulp sheet 1 is conveyed by the first conveyor 2 into the cutter 3 in sequence, and the pulp sheet 1 is cut out into the original embryo sheet 4; The second conveyor 5 conveys the raw slab 4 forward, during which the sprayer 6 sprays (ie, a coating operation) the solution containing the additive; then the blasting plate 4 is sent through the hot press 7 Heating and pressurization are performed to dry the preform 3 and form the dry formed sheet 8, and then trimming the trimming machine 9 to produce the desired fibrous product 10.

In the steps disclosed in the above manufacturing method, the action of feeding the pulp sheet 1 into the cutting machine 3 may be automatically carried out by the first conveyor 2, or the pulp sheet 1 may be manually fed into the cutting material one by one. The machine 3 performs the same action; the same reason, the action of the priming plate 4 by coating (for example, receiving the spray through the sprayer 6) can be automatically carried out by the second conveyor 5, or can be artificially performed. The original embryos 4 are transported one by one to complete the same action; of course, if the post-applied virgin plate 4 needs to be displaced, the displacement action can be performed manually or by mechanical means. To complete the automation; finally, the action of feeding the raw slab 4 after rolling pressing or standing still to the hot press 7 can be done manually or automatically by mechanical means.

It can be seen from the above description that the present invention completely reduces the preparation of the conventional pulping system, directly performs the work of the molding system, the static balance system and the trimming system, and does not need to suck during the working process of the molding system. In the operation of the slurry molding type, the cutting and coating are directly developed, and then the hot pressing operation is performed after the selective static balance, and finally the fiber product expected by the present invention is produced by the trimming action, and the manufacturing is confirmed. Convenience.

The present invention has the following excellent effects in comparison with the manufacturing method of the conventional molded product, regardless of whether or not the step of including the "rest balance system" is included;

1. Reduce equipment investment costs: The whole process of the manufacturing method of the fiber-based paper-plastic disc type product of the invention only includes the transfer of the pulp sheet, the cutting into the original embryo, the coating of the solution containing the additive, the direct hot press forming, and the cutting edge material. The steps reduce the cost of the conveying pipe, the vacuum system equipment and the suction pipe, the beater, the pulper, the pulper, the slurry tank, the pump and the valve purchase, and the mold which are necessary in the manufacturing method of the conventional molded product. Therefore, investment costs have fallen sharply, and the relative manufacturing costs have also dropped significantly.

2. Energy saving: The manufacturing method of the fibrous paper-plastic disc type product of the invention directly uses the pulp board as a material for manufacturing, does not need to be prepared by a complicated pulping system, and does not need to be subjected to the operation of suction molding, directly Into the hot pressing process, the operation cost of the operation of the beating, refining, slurrying, slurry pool to the suction tank and the fluid transportation can be saved, and the invention is required in the step of the hot press The humidity of the drying is not large, and the main function is to heat the original raw sheet to the dry-formed plate, so the heating time is not long (generally about 5 to 15 seconds, depending on the size of the product), so the energy consumption can be greatly reduced. It is generally about one tenth of the energy cost in the manufacturing method of the conventional molded product.

3. Reduce equipment installation space: The manufacturing method of the fiber-based paper-plastic disc type product of the invention replaces the conventional complicated pulping and suction molding process by the steps of direct cutting and coating operation, thereby reducing the huge system The setting area of the pulp system (conveying pipes, vacuum systems, etc., beater, pulper, pulping tank, pulp pool) can greatly reduce the installation space of the overall production line.

4. Environmental advantages: In the manufacturing process of the manufacturing method of the fibrous paper-plastic disk type product of the invention, since there is no pulping system, the slurry is transported to the loop pipe and the like, there is no waste water, so there is no environmental problem of wastewater treatment.

5. Significantly shortening the working hours and increasing the productivity: in the manufacturing process of the manufacturing method of the fibrous paper-plastic disk type product of the invention, the hot pressing machine has the advantages of quick hot pressing and short working time, so the production cycle is better than the manufacturing method of the conventional molded product. A lot less, the invention can produce more products in the same time, greatly increase the production capacity, shorten the production cycle, greatly improve the production efficiency and reduce the production cost.

6. Improve product quality and strength: The method for manufacturing the fiber-based paper-plastic disc type product of the present invention has a high fiber density and good quality, and the unit has no other filler components because of the direct use of the pulp board. The product has high strength and can be more than twice as strong in strength as conventional molded products.

In summary, the method for manufacturing a fibrous paper-panel type product disclosed by the present invention has not been seen in the past, and indeed has absolute novelty and practical progress. Therefore, the invention patent is applied according to law, and the patent of the case is granted as soon as possible after examination. Debian.

Pulping board 1 First conveyor 2 Cutting machine 3 Raw slab 4 Priming material 41 Second conveyor 5 Spraying machine 6 Resting table 62 Hot pressing machine 7 Dry forming board 8 Dry molding 81 Cutting machine 9 Fiber Product 10

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram showing the manufacturing steps of a conventional method for producing a molded product. Figure 2 is a block diagram of the first manufacturing step disclosed in the present invention. 3 is a schematic view of the mechanism before the first manufacturing step disclosed in the present invention. Figure 4 is a schematic view of the mechanism after the first manufacturing step disclosed in the present invention. Figure 5 is a schematic illustration of various possible coatings in the manufacturing steps disclosed herein. Figure 6 is a schematic view showing the structure of the blast plate disclosed in the present invention. Figure 7 is a schematic view showing the structure of the fibrous product disclosed in the present invention. Figure 8 is a block diagram showing the flow of a second manufacturing step disclosed in the present invention. Figure 9 is a schematic view of the mechanism of the second manufacturing step disclosed in the present invention.

Claims (4)

The invention relates to a method for manufacturing a fibrous paper-plastic disc type product, which adopts at least the following steps: (1) conveying a flat sheet-like pulp sheet into a material machine, and cutting the pulp sheet into an original embryo sheet, the original embryo sheet being at least One or more primary blanks intended to be manufactured into a fibrous product; (2) applying an additive-containing solution to the surface of the original embryo; (3) passing the coated primary embryo through a hot pressing Pressing and heating the raw sheet by the hot press, the raw sheet is pressed and dried to form a dry formed sheet, and in the process, each of the original raw materials is pressed to produce the fiber to be manufactured. The appearance of the product becomes a dry molded product; (4) The dry formed plate is sent to all the side machines, and the trimming material is cut according to the size of the fibrous product to be manufactured, so that the original dry molded product is formed into a fibrous product. . The method for manufacturing a fibrous paper-type disc type product according to claim 1, wherein the coated primordial sheet can be first allowed to stand so that the solution received by the primordial sheet can be further uniformly penetrated. Internally, the effect of osmotic balance is achieved, and then the pre-balanced primordial plate is sent to the hot press. The method for manufacturing a fibrous paper-type disc type product according to claim 1 or 2, wherein the pulp sheet is conveyed by a first conveyor, and the pulp sheet is sequentially introduced into the cutter. The method for producing a fibrous paper-type disc type product according to claim 1 or 2, wherein the raw slab is transported by a second conveyor through coating.