CN204898440U - Finished product of molded product - Google Patents

Abstract

A finished product of molded product is prepared as entering slurry box to suck slurry by upper and lower slurry sucking moulds, forming an upper slurry layer and a lower slurry layer by adsorption, closing said upper and lower slurry sucking moulds to form a primary blank, carrying out hot-pressing shaping operation by upper and lower pressing moulds to obtain a single molded product with increased thickness and excellent surface.

Description

Finished products of molded products

【Technical field】

The utility model relates to a finished product of a molded product, in particular to a finished product of a molded product which can increase the thickness and shock-absorbing space, and whose surface is all superior.

【Background technique】

In the early days, many industrial products and household products were made of plastic materials. Later research found that products made of plastic materials are easy to release toxins and cause serious pollution to the environment. It is difficult to recycle and reuse, or it is difficult to recycle and decompose. Recycling Due to the large number of plastic products, it has caused serious damage to global environmental protection for many years. In today's era of rising environmental awareness, it has become a research and practical application to find non-toxic and easy-to-recycle materials. mainstream.

At present, there has been developed a product made by mixing pulp and/or plant fiber material into pulp material, sucking pulp through a suction mold, pressing and shaping with an extrusion mold, and then manufacturing a product through hot pressing and shaping technology, referred to as "mould" for short. "Plastic products" or "paper-plastic products" to make a clear distinction from "plastic products" in terms of terms and definitions. "Molded products" are easy to recycle, remanufacture and reuse, which is in line with the energy-saving and carbon-reduction trend of environmental protection and reuse. Therefore, they are quickly valued by the industrial and commercial circles and the general public and are willing to accept and adopt them. Molded products are often seen such as: bowls, plates, cups Products such as covers, packaging materials, shock-absorbing materials, cushion materials, etc. are gradually adopted.

It is known that the manufacture of "molded products" must go through two manufacturing processes of "suction shaping" and "hot pressing shaping". Among them, the manufacturing technology of "suction shaping" is as shown in Figure 1-2. The mold of slurry mold 10 is provided with a plurality of slurry suction holes 11 connected with a suction device (not shown in the figure) and is provided with a fine metal mesh 12 on the surface (it can be a convex or concave shape, is not limited), during action, an external power (such as a power cylinder) drives the slurry suction mold 10 to descend into a slurry box 20 full of slurry, and a suction device (not shown in the figure) passes through the Wait for the slurry suction hole 11 to carry out vacuum suction to the slurry in the slurry box 20, so that the slurry is adsorbed on the outer surface of the fine metal mesh 12 and is covered with a slurry layer 21 (as shown in Figure 2). After the slurry mold 10 is full of slurry, it is driven up to leave the slurry box 20, and at the same time, the slurry layer 21 on the outer surface of the fine metal mesh 12 gradually reduces the humidity due to continuous suction, and then the external power will drive the slurry The mold 10 rises together with the slurry layer 21 on the outer surface of the fine metal mesh 12 to close the mold with an extrusion die (not shown in the figure), so that the slurry layer 21 is extruded (compressed) to reduce the humidity and shape it into 1. "Primary product"; because the space between the suction die 10 and the extrusion die is the outline of the expected molded product, the slurry layer is co-extruded (compressed) by the suction die 10 and the extrusion die. ), the molded "primary product" is an intermediate product that is close to the expected molded product shape, but still has some humidity; then, the suction mold 10 absorbs the "primary product" and leaves the extruded Then the suction mold 10 stops the adsorption of the "primary product", and the "primary product" is taken away from the suction mold 10 by another vacuum suction force. So far, the "suction" has been completed. Shaping" manufacturing process. Then, the manufacturing process of "hot pressing and shaping" must be further carried out so that the "preliminary product" can be transformed into a formal molded product 30 . The molded product 30 shown in FIG. 3 is made of the slurry layer 21 shown in FIG. 2, first undergoes "slurry suction molding" to become a "primary product", and then goes through the manufacturing process of "hot pressing shaping", The finished product produced.

At present, it is known that the shaping (shaping) of molded products after "suction shaping" is carried out by hot pressing, so it is called "hot pressing shaping" manufacturing process. When the aforementioned other vacuum suction force removes the initial product from the slurry suction mold 10, it enters the work of "hot pressing and shaping". There are two common hot pressing methods, the first one is called "wet pressing method" ", which means that when the moisture content of the "primary product" is reduced to about 55-70%, the "primary product" is directly heat-pressed and shaped with hot-press shaping equipment (including crimping dies and heating equipment) ( shaping) operation, the hot-pressing temperature is between 150°C±10°C, and the hot-pressing time depends on the volume of the molded product (the larger the volume, the longer the hot-pressing time must be); the second is the "dry pressing method", which is Dry the "primary product" when the moisture content is reduced to about 55-70%. When the moisture content is reduced to about 7-10%, it will be reshaped by hot pressing equipment (including crimping mold and heating equipment) ) to carry out hot-press shaping (shaping) on the "primary product". The hot-pressing temperature is the same as 150°C ± 10°C, but the hot-pressing time will be shorter than the "wet pressing method" (that is, the first method).

Therefore, it can be seen that the "primary product" completed by the "suction shaping" manufacturing process has not been subjected to the "hot pressing shaping" manufacturing process, which means that although it has been shaped, it still contains some humidity and has not been finalized. That is to say, the "premature product" is neither as wet as the slurry layer 21 nor as dry as the molded product 30, so it must be heated and pressurized "hot pressing" before it can be shaped into the molded product 30.

The applicant is professionally engaged in the manufacture of "molded products". After a long time of experience in contact with "molded products", he realizes that there are still things worthy of improvement in the manufacture and use of "molded products", which are relatively lacking as follows:

1. The slurry suction mold 10 is a single individual mold. What shape is formed on the surface, and finally the molded product 30 of the same shape is formed. Because the slurry suction mold 10 adopts vacuum suction force to suck the slurry, only The slurry layer 21 can be covered in a single layer on the outer surface of the fine metal mesh 12 at one time, and the slurry layer 21 cannot be laminated in multiple layers. Therefore, it is generally only suitable for small products with a relatively smooth appearance and a thickness that does not need to be too thick ( For example, bowls, plates, cup lids, etc.), if it is desired to manufacture thicker products (for example: packaging materials with better shock-absorbing effects), conventional manufacturing methods are still difficult to achieve. Therefore, it is common to use molded products as packaging materials, and another shock-absorbing material (maybe the same material or different materials) must be used inside to increase the shock-absorbing effect. It is still impossible to achieve both packaging and packaging with a single molded product. Shock absorbing effect.

2. After the slurry suction die 10 absorbs the slurry and covers the outer surface of the fine metal mesh 12 to form the slurry layer 21, it continues to perform the suction function, on the one hand, to absorb the slurry layer 21, and on the other hand, to make the slurry Layer 21 reduces the humidity, so the surface adsorbed by the fine metal mesh 12 on the slurry layer 21 will closely fit with the fine metal mesh 12, and then when the suction die 10 drives the slurry layer 21 and the extrusion die to extrude During compression molding, the other surface of the slurry layer 21 will be in close contact with the extrusion die, wherein, in order to allow the slurry layer 21 to evenly cover the fine metal mesh 12, the fine metal mesh 12 are all made of fine mesh with good fineness, so the surface pressed by the fine metal mesh 12 on the "premature product" appears as a smooth and fine "superior surface"; and the effect of the extrusion die is to extrude The slurry layer 21 reduces the humidity and quickly shapes it into a "premature product", so the surface of the extrusion die will not be finely opened, and therefore the "premature product" is pressed by the extrusion die. The pressed surface appears as a relatively less uneven "non-favorable surface". Therefore, even if the "premature product" becomes a molded product 30 through the manufacturing process of hot pressing and shaping, as shown in FIG.

3. The known molded product 30 is suitable for packaging non-extremely valuable commodities (such as eggs) because one side is superior surface 31 and the other side is non-superior surface 32, but it is suitable for packaging high-value commodities. For products (such as mobile phones), there will be "non-advanced surfaces" in the packaging materials of molded products, resulting in poor visual perception and lowering the value of the overall product.

Because conventional molded products are difficult to increase in thickness and have a non-advantageous surface, the molded products are greatly restricted in the promotion of usage, and cannot be directly used for packaging high-value commodities. Therefore, how to design a molded product that can increase the thickness and can have good surfaces on both sides to enhance the usability and enhance the value of the packaged products is an urgent need at present.

【Content of utility model】

The purpose of this utility model is: 1. To provide a single molded product which can increase the thickness and shock-absorbing space, so as to gain the effect of shock-absorbing. 2. Provide a single molded product with good surfaces.

In order to achieve the above object, the utility model is a finished product of a molded product, which is characterized in that it includes: an upper slurry layer, which enters a slurry box from an upper slurry suction mold to suck slurry, and the fine surface of the upper slurry suction mold Formed on the outer surface of the metal mesh; and the lower slurry layer, which enters the slurry box from the lower slurry suction mold to suck slurry at the same time, and is formed on the outer surface of the fine metal mesh on the surface of the lower slurry suction mold; the upper slurry layer and the lower slurry The material layers are in relative positions; the upper size layer and the lower size layer have part of the same shape and position, and also have part of the shape and position difference.

In the finished product of the molded product above, the upper size layer and the lower size layer are correspondingly accommodated and laminated to form a preform.

In the finished product of the above-mentioned molded product, the preform is formed into a molded product by hot pressing.

In the finished product of the above-mentioned molded product, the thickness of the upper size layer and the lower size layer increases after lamination at the parts where the shape and position are the same.

In the finished product of the above-mentioned molded product, a space exists at the portion where the shape and position of the upper size layer and the lower size layer are different.

In the finished product of the above-mentioned molded product, the surface of the molded product is a good surface.

The utility model advantage and effect are:

1. In this utility model, the upper size layer and the lower size layer, which are still in high humidity on the second layer, are correspondingly accommodated first, so that they become a primary product, and then hot-pressed and shaped, that is, a uniformity of at least twice the thickness is produced. Molded products, meanwhile, a space for enhancing the shock-absorbing effect can be generated inside, making the molded product suitable as a packaging material with shock-absorbing effect.

2. In the same way, if the three layers of slurry layers are compatible and juxtaposed for the second time, it can also become a primary product for hot pressing and shaping, so that a molded product with three times the thickness can be produced; that is, through the utility model Manufacturing method, the thickness of molded products can be increased at least twice. When used as a packaging material, in addition to showing a strong and sturdy shape due to the thickness, the increase in thickness increases the shock absorption effect, so it is more suitable as a packaging material. At the same time, it also has the effect of shock absorption, so a single product can achieve the effect of both packaging and shock absorption, so as to reduce the complexity of preparing packaging materials and shock absorption materials at the same time in conventional cases.

3. In this utility model, at least two layers of slurry layers are compatible and juxtaposed into an initial product for hot-pressing and shaping, and the final surface is all "good surface", so it is suitable for packaging high-value commodities. Increase the overall value of the product.

【Description of drawings】

Figure 1 is a schematic diagram of the action of conventional molded products to absorb slurry (1).

FIG. 2 is a schematic diagram (2) of the action of sucking slurry on a conventional molded product.

Figure 3 is a transverse sectional view of a conventional molded product.

FIG. 4 is a partially enlarged schematic diagram of FIG. 3 .

Fig. 5 is a schematic diagram showing the action of simultaneous slurry suction by the upper and lower slurry suction molds in the embodiment of the present invention.

Fig. 6 is a schematic diagram showing the relative positions of the upper and lower slurry layers adsorbed by the upper and lower slurry suction molds according to the embodiment of the present invention.

Fig. 7 is a schematic diagram showing the action of the embodiment of the utility model in which the upper and lower slurry suction molds respectively absorb the upper and lower slurry layers for corresponding accommodation, so that the upper and lower slurry layers form an initial product.

Fig. 8 is a schematic diagram showing the action of the embodiment of the utility model to transfer the initial product to the joint undertaking of the upper crimping die and the lower crimping die.

Figure 9 is a transverse cross-sectional view of a finished molded product manufactured by the embodiment of the present invention.

FIG. 10 is a partially enlarged schematic diagram of FIG. 9 .

Figure 11 is a transverse cross-sectional view of another molded product manufactured by the embodiment of the present invention.

FIG. 12 is a partially enlarged schematic view of FIG. 11 .

The symbols in the figure are explained as follows:

Slurry suction mold 10 Slurry suction hole 11 Fine metal mesh 12

Pulp box 20 slurry layer 21 molded product 30

Excellent surface 31 Non-excellent surface 32 Upper slurry suction mold 40

Slurry suction hole 41 fine metal mesh 42 lower slurry suction die 50

slurry suction hole 51 fine metal mesh 52 upper slurry layer 22

Lower slurry layer 23 space 24 upper crimping die 60

Lower crimping die 70 molded products 80

【Detailed ways】

Please refer to shown in Fig. 5, the utility model is that an upper slurry suction mold 40 and a lower slurry suction mold 50 enter the pulp box 20 at the same time (it can be the same pulp box or different pulp boxes, and is not limited), and vacuum suction is adopted. Slurry is absorbed through the plurality of suction holes 41 and 51 on the upper slurry suction mold 40 and the lower slurry suction mold 50 to form an upper slurry layer 22 attached to the fine metal mesh 42 on the surface of the upper slurry suction mold 40 On the outer surface, form a slurry layer 23 attached to the outer surface of the fine metal mesh 52 on the surface of the lower slurry suction mold 50 at the same time, wherein the fine metal mesh 42 set on the upper slurry suction mold 40 and the lower slurry suction mold The fine metal mesh 52 provided by 50 has some similarities in shape and position, and some differences in shape and position; generally speaking, it is the fine metal mesh 42 and the fine metal mesh 52. The shape can be said to be similar, but some parts will have differences in position.

Then, the upper slurry suction mold 40 absorbs the upper slurry layer 22 and the lower slurry suction mold 50 absorbs the lower slurry layer 23 and leaves the pulp box 20 together; then as shown in Figure 6, the upper slurry suction mold 40 The upper slurry layer 22 is adsorbed and the lower slurry layer 23 is adsorbed to the lower slurry layer 23 to present a relative position. The material layer 22 is in a downward state, but the lower slurry layer 23 is absorbed by the lower slurry suction mold 50 and then turned over and reaches the bottom of the upper slurry suction mold 40; then as shown in Figure 7, the upper slurry suction mold 40 and the Lower slurry suction mold 50 closes the mould, makes this upper and lower slurry layer 22,23 do corresponding accommodation (can be accommodated in the lower slurry layer 23 by upper slurry layer 22, or be accommodated by lower slurry layer 23 In the upper size layer 22, it is not limited), and do partial bonding, that is, the parts of the upper size layer 22 and the lower size layer 23 with the same shape and position are bonded, as for the shape And the positions with different positions are not bonded. At this time, it can be seen that the positions of the upper size layer 22 and the lower size layer 23 are not bonded, so a space will be created. 24 exists.

Continue, after the upper slurry suction mold 40 and the lower slurry suction mold 50 are clamped, the suction time is continued for a period of time, so that the joint between the upper slurry layer 22 and the lower slurry layer 23 is gradually integrated and Appropriate dehumidification becomes a "premature product"; then, the upper suction mold 40 absorbs the "primary product" formed by combining the upper size layer 22 and the lower size layer 23, and the lower suction Mold 50 stops the adsorption of the "primary product" and demoulds away, and transfers to the lower crimping die 70 to arrive and accept the "primary product", and then the upper suction mold 40 stops the "primary product" Absorption and demoulding leave, transfer to an upper crimping die 60 to arrive and accept the "primary product", so at this time as shown in Figure 8, the "primary product" has been transferred from the upper crimping die 60 to the lower crimping die The crimping die 70 is mold-closed, and the manufacturing process of "hot pressing and shaping" is carried out immediately. The finished molded product 80 is as shown in FIG. 9 , and a part of it is enlarged as shown in FIG. 10 .

What must be emphasized here is that (1). Due to the selection of the size design of the utility model, it is necessary to make corresponding accommodation between the upper slurry layer 22 and the lower slurry layer 23, so that the two The parts with the same shape and position can be bonded, and the parts with different positions are allowed not to be bonded; therefore, the finished molded product 80 shown in Figure 9 has the original space 24 in the molded product 80. Exist, to enhance the shock absorbing and buffering effect; (2). The "preliminary product" in the process of the utility model is because the upper slurry layer 22 is adsorbed by the upper slurry suction mold 40 and is adsorbed by the lower slurry suction mold 50 The lower slurry layer 23 is formed by accommodating and laminating the upper and lower slurry layers 22, 23, so the outer surface of the "primary product" is closely attached to the fine metal mesh 42, 52 Therefore, the final molded product 80 is a finished product whose external surface is all high-quality, which is enough to enhance the overall value of the packaged goods; (3). The utility model is used for "suction molding In the manufacturing process of the "shape", when the upper size layer 22 and the lower size layer 23 are correspondingly accommodated and bonded, because the upper size layer 22 and the lower size layer 23 still contain a certain humidity, Therefore, the moisture and slurry between the non-adhesive surfaces of the two will be combined with each other and gradually form an integrated body; and then when they go through the manufacturing process of "hot pressing and shaping", due to high pressure pushing and high heat Dehumidification, so that the non-ideal boundary line that originally existed between the upper size layer 22 and the lower size layer 23 for butt joint disappears without a trace, so after the molded product 80 is demoulded, it will appear as shown in Figure 9 As shown in -10, the original upper size layer 22 and the lower size layer 23 have been combined to form a single molded product 80, which not only has increased thickness (at least twice), but also has good sides on both sides.

As can be seen from the above description, the utility model is mainly to accommodate the upper size layer and the lower size layer formed by simultaneous slurry suction through the upper and lower slurry suction films in the process of slurry suction and shaping, so that both Parts with the same shape and position can be pasted together, and parts with different positions are allowed not to be pasted, so as to form an initial product first, and then reshape it into a finished molded product by hot pressing; in the utility model, the suction In the process of slurry shaping, the upper slurry layer and the lower slurry layer will gradually become one, because the joint parts are at the same humidity, and can gradually become one due to mutual bonding, and then undergo high-pressure hot pressing The effect of high heat makes the originally blurred bonding boundary disappear without a trace. In the molded product 80 shown in FIG. 9 , the raised parts are often the pillars or ribs surrounding the packaged items (such as computer mainframes) by the packaging material itself. Because the raised parts have increased thickness, It can also have space 24 for cushioning and shock absorption, so it can indeed play a very good role in protecting the surroundings of the packaged items. Under the same principle of action and the same structural composition, the utility model can also be shown in Figure 11-12, so that the raised parts in the molded product 80 can obviously increase the thickness and create a space 24, but the plane parts can choose not to increase the thickness or The thickness is only slightly increased, so as to achieve a balance between protecting the surrounding area of the packaged item and reducing the overall weight as much as possible. Although the molded product 80 shown in Figures 11-12 only selects the elevated part to increase the thickness and create the space 24, it still must implement the corresponding storage of the upper slurry layer and the lower slurry layer as disclosed in the present invention. It is a method of laminating the parts with the same shape and position between the two to form an initial product, and then shaping it into a molded product by hot pressing, and the finished product will also have the effect of increased thickness and a good surface, so Also within the scope protected by the utility model.

Claims (6)

1. The finished product of a kind of molded product, it is characterized in that, comprises: an upper slurry layer, enters a slurry box suction slurry by an upper slurry suction mold, forms on the fine metal mesh outer surface of this upper slurry suction mold surface ; and the lower slurry layer, the lower slurry suction mold enters the pulp box to suck slurry at the same time, and is formed on the outer surface of the fine metal mesh on the surface of the lower slurry suction mold; the upper slurry layer and the lower slurry layer are in relative positions; The upper size layer and the lower size layer have part of the same shape and position, and also have part of the shape and position different. 2 . The finished molded product according to claim 1 , wherein the upper size layer and the lower size layer are correspondingly accommodated and laminated to form a preform. 3. The finished molded product according to claim 2, wherein the preform is shaped into a molded product by hot pressing. 4 . The finished molded product according to claim 1 , wherein the upper size layer and the lower size layer have the same shape and position, and the thickness increases after lamination. 5 . The finished molded product according to claim 1 , wherein a space exists at a portion where the shape and position of the upper size layer and the lower size layer are different. 6. The finished molded product according to claim 3, wherein the molded product has a smooth surface.