WO2020154824A1

WO2020154824A1 - Mould for anti-scalding paper-plastic container

Info

Publication number: WO2020154824A1
Application number: PCT/CN2019/000025
Authority: WO
Inventors: 赖宗伸; 饶日华
Original assignee: 佛山市美万邦科技有限公司
Priority date: 2019-01-31
Filing date: 2019-01-31
Publication date: 2020-08-06

Abstract

A mould for an anti-scalding paper-plastic container, comprising a slurry suction mould, a hot press upper mould, and a hot press lower mould, the slurry suction mode being used for being immersed in a slurry box and undergoing a slurry suction action such that a slurry layer is adsorbed onto the slurry suction mould, the slurry layer first being extruded and dehumidified by a separate cold press mould to form a primary blank, and then being transferred by being carried by the hot press upper mould; then the hot press upper mould and hot press lower mould are closed to extrude the primary blank in order to shape the entire shape into the desired size, the primary blank also being dried into a paper-plastic container by means of the hot press action of closing the hot press upper mould and the hot press lower mould.

Description

Mould for anti-scalding paper plastic container

【Technical Field】

The invention relates to a mold for anti-scalding paper-plastic containers, in particular to a mold for anti-scalding paper-plastic containers that can be manufactured.

【Background technique】

"Take-out paper cups" and "take-out paper bowls" are "disposable food containers" that are often seen in modern life. At present, "disposable food containers" are usually made of paper, so there are also "disposable paper containers" "And "disposable paper containers" etc.

The conventional paper container is made of paper as a material, by means of bending, lamination, pressing, etc., a body surrounded by a circle and a bottom sheet combined with the bottom are manufactured, which are jointly defined by the body and the bottom sheet The volume range of the main body is a containing space. The bottom of the paper sheet of the main body and the periphery of the paper sheet of the negative sheet are combined to form a bottom space by means of lamination and rolling. The top of the paper sheet of the main body is A top edge is created by bending outwards, and therefore there must be a gap inside the top edge. Conventional paper containers are only made of thin sheets of paper, so they are barely used to hold hot food (hot soup or hot coffee, hot tea, etc.) when there is no better alternative. His practice knows that paper containers have poor anti-scalding effect, poor heat resistance effect, easy softening when exposed to heat (especially the top edge is easy to soften), and the bottom is difficult to dissipate heat.

Under the natural environment requirements of “material recycling”, “green environmental protection”, and “earth-friendly”, the applicant has developed a “anti-scalding paper-plastic container” product manufactured by “manufacturing technology of paper-plastic products”. It can gradually replace conventional paper containers. The "manufacturing technology of paper-plastic products" referred to, roughly speaking, is based on mixing pulp fiber materials and/or including plant fiber materials as the pulp material into the pulp tank, and then enters the pulp from a suction mold The slurry suction in the tank is attached to a slurry layer, the slurry layer is squeezed and dehydrated into a primary embryo, and then the primary embryo is shaped into a paper-plastic product through hot pressing.

In order to complete the manufacture of anti-scalding paper-plastic containers, a mold with anti-scalding paper-plastic containers must be created first, and then the anti-scalding paper-plastic containers can be manufactured through the mold. Therefore, forming molds are also very important manufacturing equipment.

[Content of the invention]

The purpose of the present invention is to provide a new structure of mold for anti-scalding paper-plastic containers to complete the manufacture of anti-scalding paper-plastic containers.

In order to achieve the above objective, the present invention specially creates a scald-proof paper-plastic container mold, which includes a slurry suction mold, a hot pressing upper mold and a hot pressing lower mold, wherein the slurry suction mold has a base, and the base There is a concave shaped groove in the central part of the, and the inner edge of the shaped groove rises upward to form a push cylinder. The top surface of the push cylinder is provided with at least three sloping grooves that are equally surrounded by vertical arcs. Block, the middle surrounded by the chute and vertical arc block is a concave arc surface; the hot pressing upper mold has a base, the center of the base is provided with a concave upper half groove surface, the The inner edge of the upper half-shaped groove surface rises upwards to form a push-pull cylinder. The periphery of the top surface of the push-pull cylinder is provided with at least three oblique grooves that are equally surrounded by vertical arc blocks. The center surrounded by the block is a number of concave arcs. The position, shape and size of the chute, vertical arc block, arc surface of the hot pressing upper die are the same as the chute, vertical arc block and arc surface of the slurry suction mold. One-to-one correspondence; the hot pressing mold has a base, one side of the base is a raised platform, the central part of the platform is opened with a downward pushing circular groove, and the top edge is opened as the lower half A curved surface, the inner wall of the push-pull circular groove is symmetrically provided with a plurality of concave edge strips in two regions, all of which are vertically arranged vertically, and the bottom surface of the push-pull circular groove is pushed downward and has at least three The grooves are divided into equal parts, the inner edges of the grooves are communicated and connected at the center to form a concave arc surface, and the part between the at least three equally divided grooves is a step surface; the hot pressing lower mold The position, shape and size of the lower half-shaped arc surface correspond to the upper half-shaped groove surface of the hot pressing upper mold. The position, shape and size of the step surface, groove and arc surface of the hot pressing lower mold are related to the heat There is a one-to-one correspondence between the chute, vertical arc block and arc face of the upper die.

In the above-mentioned anti-scalding paper-plastic container mold, the internal volume of the pushing circular groove of the hot pressing lower mold is larger than the volume of the pushing cylinder of the hot pressing upper mold.

The advantages and beneficial effects of the present invention are: according to the above-mentioned structure and composition, the paper-plastic container is an anti-scald paper-plastic container especially suitable for holding hot food and hot soup, and the paper-plastic container adopts the above-mentioned slurry suction mold and heat Press the upper mold and hot press the lower mold, and manufacture it in accordance with the "manufacturing technology of paper-plastic products".

【Explanation of drawings】

Figure 1 is a perspective view of the slurry suction mold of the present invention.

Fig. 2 is a side view of the slurry suction mold of the present invention.

Figure 3 is a longitudinal cross-sectional view of the slurry suction mold of the present invention.

Figure 4 is a schematic diagram of the slurry suction mold adsorbing the slurry layer in the present invention.

Figure 5 is a perspective view of the hot pressing upper mold of the present invention.

Figure 6 is a longitudinal cross-sectional view of the hot pressing upper mold of the present invention.

Fig. 7 is a schematic diagram of the hot pressing upper mold adsorbing the preliminary product in the present invention.

Fig. 8 is a perspective view of the hot pressing lower mold of the present invention.

Fig. 9 is a longitudinal cross-sectional view of the hot pressing die of the present invention.

Fig. 10 is a schematic diagram of the hot-pressing upper mold and the hot-pressing lower mold being combined and hot-pressed into a paper-plastic container in the present invention.

Figure 11 is a perspective view of a paper-plastic container manufactured by the present invention.

Figure 12 is a perspective view from another angle of the paper-plastic container manufactured by the present invention.

Figure 13 is a longitudinal cross-sectional view of a paper-plastic container manufactured by the present invention.

Figure 14 is a transverse cross-sectional view of the paper-plastic container manufactured by the present invention.

The label description in the figure is as follows:

Suction mold 10 Base 11 Forming groove 12 Push-pull cylinder 13

Chute 14 Vertical arc block 15 Curved surface 16 Hot pressing upper mold 20

Base 21 Upper half groove surface 22 Pushing cylinder 23 Chute 24

Vertical arc block 25 Arc surface 26 Hot press lower mold 30 Base 31

Lower half-shaped curved surface 32 Push-pull round groove 33 Concave edge strip 34 Groove 35

Arc surface 36 Stage surface 37 Slurry layer A Initial product B

Paper plastic container 40 Main body 41 Flange 411 Backsheet 42

Dressing space 43 Supporting foot 44 Circulation space 441 Top edge 45

【detailed description】

The present invention is used to implement "paper-plastic product manufacturing technology" to manufacture "anti-scalding paper-plastic container", so the "anti-scalding paper-plastic container mold" protected by the present invention will include a slurry suction mold 10, a heat For the distinction between the upper pressing mold 20 and the lower hot pressing mold 30, please refer to Figures 1 to 4. The slurry suction mold 10 has a base 11, which is a square-shaped seat, and the central part of the base 11 A ring-shaped recessed molding groove 12 is provided. The inner edge of the molding groove 12 rises upward to form a push cylinder 13. The periphery of the top surface of the push cylinder 13 is provided with at least three oblique grooves 14 that are equally surrounded. The vertical arc block 15 is surrounded by the chute 14 and the vertical arc block 15 are slightly concave arc surfaces 16. Such a structure constitutes the slurry suction mold 10.

The inside of the slurry suction mold 10 is connected with a suction device. The suction effect of the suction device makes the surface of the pushing cylinder 13 have slurry suction effect. The base 11 is also connected with a moving device and can follow The mobile device moves up and down, and can even move up and down with the mobile device when necessary, and its movement is not restricted. When in use, the base 11 is driven by the moving device to move, and the slurry suction mold 10 includes the forming groove 12, the pushing cylinder 13, the chute 14, the vertical arc block 15 and the arc surface 16 are all immersed The slurry suction action is carried out in the headbox, so that a slurry layer A is adsorbed on the surface of the slurry suction mold 10 including the forming groove 12, the pushing cylinder 13, the chute 14, the vertical arc block 15 and the arc surface 16. As shown in Figure 4, when the suction time is up, the moving device drives the suction mold 10 to adsorb the slurry layer A as a whole to move up and leave the headbox, and then the moving device further drives the suction The mold 10 adsorbs the slurry layer A and moves upwards to close the slurry layer A with a separate cold press die to squeeze the slurry layer A, so that the slurry layer A is dehumidified into a preliminary product B (see Figure 7 first Show).

Next, please refer to FIGS. 5-7. The hot pressing upper mold 20 has a base 21, which is a square-shaped seat. The center of the base 21 is provided with a concave upper half groove surface. 22. The inner edge of the upper half-shaped groove surface 22 rises upward to form a push cylinder 23. The periphery of the top surface of the push cylinder 23 is provided with at least three oblique grooves 24 that are equally surrounded by vertical arc blocks 25. , The middle surrounded by the chute 24 and the vertical arc block 25 are slightly concave arc surfaces 26, such a structure constitutes the hot pressing upper mold 20, among which, the chute 24 of the hot pressing upper mold 20 The position, shape and size of the vertical arc block 25 and the arc surface 26 will have a one-to-one correspondence with the chute 14, the vertical arc block 15 and the arc surface 16 of the slurry suction mold 10. When in use, when the aforementioned slurry suction mold 10 adsorbs the preliminary product B, the preliminary product B will be transferred to the hot-press upper mold 20 through a transfer mechanism, as shown in FIG. 7.

Next, please refer to FIGS. 8-10. The hot pressing lower mold 30 has a base 31, which is a square-shaped base. One side of the base 31 is a raised platform, and the central part of the high platform There is a downward-deep pushing circular groove 33, the top edge of which is opened as a lower semi-curved surface 32, and the inner wall of the pushing circular groove 33 is provided with a plurality of concave edge strips 34 in two regions symmetrically, all of which appear up and down Vertically arranged in an upright shape, the bottom surface of the push-pull circular groove 33 is pushed downward and is provided with at least three equally-encircled grooves 35. The inner edges of the grooves 35 are connected and connected at the center to form a slightly concave Curved surface 36. Except for the downwardly opened groove 35 and the connected curved surface 36, the bottom surface of the push-pull circular groove 33 is not downwardly positioned between the at least three equally-circumscribed grooves 35 The pushed-out step surface 37, such a structure constitutes the hot pressing lower die 30, wherein the internal volume of the pushing round groove 33 of the hot pressing lower die 30 is slightly larger than that of the pushing cylinder 23 of the hot pressing upper die 20 Volume, and the position, shape, and size of the lower half-curved surface 32 of the hot-pressed lower mold 30 will correspond to the upper-half groove surface 22 of the hot-pressed upper mold 20, and the step of the hot-pressed lower mold 30 The position, shape, and size of the surface 37, the groove 35, and the arc surface 36 will have a one-to-one correspondence with the chute 24, the vertical arc block 25, and the arc surface 26 of the hot pressing upper die 20. The clamping action of the upper hot-press mold 20 and the lower hot-press mold 30 is performed, as shown in FIG. 10.

In use, after the aforementioned hot pressing upper mold 20 accepts and adsorbs the preliminary product B, then the pushing cylinder 23 of the hot pressing upper mold 20 and the preliminary product B jointly move toward the pushing circle of the hot groove pressing lower mold 30 33 is inserted into the state shown. In the action and state shown in FIG. 10, the clamping of the upper hot-press mold 20 and the lower hot-press mold 30 will again squeeze the preliminary product B to make The shape is the expected size and shape, and the preliminary product B is dried into a paper-plastic container 40 through hot pressing. Therefore, the manufacturing process involves transferring the slurry suction mold 10 into a slurry layer A, and then extruding into a preliminary product B by the cold pressing mold clamping, and the hot pressing upper mold 20 accepts the adsorption. The upper hot-pressing mold 20 absorbs the first embryo product B and the lower hot-pressing mold 30 to mold and reshape the first embryo product B to become the paper plastic container 40.

The structure of the paper-plastic container 40 is shown in Figures 11-14. It has a body 41 that surrounds a circle and a bottom sheet 42 combined with the bottom. The volume range defined by the body 41 and the bottom sheet 42 is a container In the space 43, a plurality of flanges 411 protruding more than the surface of the body 41 are formed on the symmetrical surface of the body 41. The flanges 411 are vertically arranged vertically. 411 is produced, that is, when the hot pressing upper mold 20 and the hot pressing lower mold 30 are closed, most of the concave edge strips 34 opened on the inner wall of the push-pull circular groove 33 squeeze the preliminary product B to form a shape , And produced by hot pressing; the common top of the body 41 and the flange 411 will pass through the upper half groove surface 22 and the upper half groove surface 22 when the upper hot pressing mold 20 and the lower hot pressing mold 30 are closed The lower half-curved surface 32 correspondingly squeezes the preliminary product B to form a solid and strong top edge 45; at the same time, when the hot-press upper mold 20 and the hot-press lower mold 30 are closed, pass The groove 35 of the hot pressing lower mold 30 and the vertical arc block 25 of the hot pressing upper mold 20 are molded together to produce at least three supporting legs 44 that are equally surrounded. The arc 36 and the arc 26 are Co-molding produces the bottom sheet 42, and the step surface 37 and the chute 24 are co-molded to produce a circulation space 441 between the supporting legs 44.

According to the above-mentioned structure and composition, the paper-plastic container 2 is an anti-scalding paper-plastic container especially suitable for holding hot food and hot soup, and the paper-plastic container 2 adopts the above-mentioned slurry suction mold 10, hot pressing upper mold 20 and The lower mold 30 is hot-pressed and finished according to the "manufacturing technology of paper-plastic products".

Claims

An anti-scalding paper-plastic container mold, comprising a slurry suction mold, a hot pressing upper mold and a hot pressing lower mold, characterized in that: the slurry suction mold has a base, and the center of the base is provided with a ring recess The inner edge of the forming groove rises upward to form a push-pull cylinder. The top surface of the push-pull cylinder is provided with at least three sloping grooves that are equally surrounded by vertical arc blocks. And the center surrounded by the vertical arc block is a concave arc surface; the hot pressing upper mold has a base, the center of the base is provided with a concave upper half groove surface, the inner half of the upper half groove surface The edge rises upward to form a push-pull cylinder. The top surface of the push-pull cylinder is provided with at least three sloping grooves that are equally surrounded by vertical arc blocks. The middle surrounded by the chute and the vertical arc blocks is some The concave arc surface, the position, shape, and size of the chute, vertical arc block, and arc surface of the hot pressing upper die have a one-to-one correspondence with the chute, vertical arc block and arc surface of the slurry suction mold; The hot pressing mold has a base. One side of the base is a raised platform. The central part of the platform is provided with a downward pushing circular groove. The top edge is opened as a lower semi-curved surface. The inner wall of the circular groove is symmetrically provided with a plurality of concave edge strips in two regions, all of which are vertically arranged vertically. The bottom surface of the push-pull circular groove is pushed downward and is provided with at least three equally-circular grooves , The inner edges of the grooves communicate with each other and connect at the center to form an upper concave arc surface, and the part between the at least three equally-circumscribed grooves is a step surface; the lower half arc surface of the hot pressing lower mold The position, shape, and size correspond to the upper half groove surface of the hot pressing upper mold, and the position, shape and size of the step surface, groove and arc surface of the hot pressing lower mold are related to the chute, One-to-one correspondence between vertical arc blocks and arc masks.
2. The anti-scalding paper-plastic container mold according to claim 1, wherein the internal volume of the push-drawing circular groove of the hot pressing lower mold is larger than the volume of the push-drawing cylinder of the hot pressing upper mold.