Anti-scalding paper plastic container mold

Abstract

A mold for a scald-proof paper-plastic container comprises a slurry absorption mold, a hot pressing upper mold and a hot pressing lower mold. The slurry absorption mold is used to be immersed in a slurry box and perform slurry absorption so that a slurry layer is adsorbed on the slurry absorption mold. The slurry layer is first squeezed and dehumidified into a preliminary embryo by a separately placed cold pressing mold, and then transferred to the hot pressing upper mold for adsorption. Then the hot pressing upper mold and the hot pressing lower mold are combined to extrude the preliminary embryo again to shape it into the expected size. At the same time, through the hot pressing effect of the hot pressing upper mold and the hot pressing lower mold, the preliminary embryo is dried to become a paper-plastic container.

Description

[Technical field]

[0001] The present invention relates to a mold for an anti-scalding paper-plastic container, in particular to a mold for an anti-scalding paper-plastic container capable of completing the manufacture of the anti-scalding paper-plastic container. [Background technology]

[0002] "Takeaway paper cups" and "takeaway paper bowls" are "disposable food containers" that are often seen in modern life. Currently, "disposable food containers" are most commonly made of paper, so they are also called "disposable paper containers" and "disposable paper containers".

[0003] Common paper containers are made of paper sheets, and are made into a main body and a bottom sheet combined with the bottom by means of bending, stacking, pressing, etc. The volume range defined by the main body and the bottom sheet is a storage space. The paper bottom of the main body and the paper periphery of the bottom sheet are combined by means of stacking and pressing to enclose a bottom space. The top of the paper sheet of the main body is bent outward to produce a top edge, and therefore there must be a gap inside the top edge. Because the conventional paper container is made of only thin sheets of paper, it is reluctantly used to hold hot food (hot soup or hot coffee, hot tea, etc.) in the absence of other better alternatives. However, the conventional paper container has many shortcomings in actual use, such as poor anti-scalding effect, poor heat resistance, easy softening when heated (especially the top edge is easy to soften), and difficulty in heat dissipation at the bottom.

[0004] Under the natural environment requirements of "material recycling", "green environmental protection" and "friendly to the earth", the applicant has developed a "scald-proof paper-plastic container" product made by "paper-plastic product manufacturing technology", which will gradually replace the commonly known paper containers. The "paper-plastic product manufacturing technology" referred to is, in general, to use pulp fiber materials and / or plant fiber materials mixed and beaten as pulp materials and poured into a pulp tank, and then a pulp suction mold enters the pulp tank to absorb the pulp and attach it to a pulp layer, and the pulp layer is squeezed and dehydrated to become a preliminary product, and then the preliminary product is hot-pressed to be formed into a paper-plastic product.

[0005] In order to complete the manufacture of the anti-scalding paper-plastic container, a mold of the anti-scalding paper-plastic container must be created first, and then the anti-scalding paper-plastic container can be manufactured through the mold. Therefore, the molding mold is also a very important manufacturing equipment. [Summary of the invention]

[0006] The purpose of the present invention is to provide a mold of a scalding-proof paper-plastic container with a completely new structure to complete the manufacture of the scalding-proof paper-plastic container.

[0007] In order to achieve the above-mentioned purpose, the present invention specially creates a mold for an anti-scalding paper-plastic container, comprising a slurry absorption mold, a hot pressing upper mold and a hot pressing lower mold, wherein the slurry absorption mold has a base, a central part of the base is provided with a ring-shaped concave molding groove, the inner edge of the molding groove rises upward to form a push-pull cylinder, and the periphery of the top surface of the push-pull cylinder is provided with at least three equally divided inclined grooves, separated by arc blocks, and the middle surrounded by the inclined grooves and the arc blocks is a concave arc surface; the hot pressing upper mold has a base, the central part of the base is provided with a ring-shaped concave upper half-groove surface, the inner edge of the upper half-groove surface rises upward to form a push-pull cylinder, the periphery of the top surface of the push-pull cylinder is provided with at least three equally divided inclined grooves, separated by arc blocks, and the middle surrounded by the inclined grooves and the arc blocks is a number of concave arc surfaces, the position and shape of the inclined grooves, arc blocks and arc surfaces of the hot pressing upper mold The shape and size of the slurry suction mold are in one-to-one correspondence with the inclined groove, the vertical arc block and the arc surface; the hot pressing lower mold has a base, one side of the base is a raised platform, and the central part of the platform is provided with a downward-deep push-pull circular groove, and its top edge is provided with a lower half-shaped arc surface. The inner wall of the push-pull circular groove is symmetrically provided with a plurality of concave edge strips in two areas, all of which are arranged vertically in an upright shape. The bottom surface of the push-pull circular groove is pushed downward and provided with at least three equally divided grooves. The inner edges of the grooves are connected and connected in the center to form an upward concave arc surface, and the part between the at least three equally divided grooves is a step surface; the position, shape and size of the lower half-shaped arc surface of the hot pressing lower mold correspond to the upper half-shaped 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 correspond to the inclined groove, the vertical arc block and the arc surface of the hot pressing upper mold.

[0008] In the mold of the above-mentioned anti-scalding paper-plastic container, the internal volume of the push-pull circular groove of the hot-pressing lower mold is greater than the volume of the push-pull cylinder of the hot-pressing upper mold.

[0009] The advantages and beneficial effects of the present invention are: according to the above-mentioned structural composition, the paper-plastic container is a scalding-proof paper-plastic container that is particularly suitable for holding hot food and hot soup, and the paper-plastic container adopts the above-mentioned slurry absorption mold, hot pressing upper mold and hot pressing lower mold, and is manufactured according to the "paper-plastic product manufacturing technology".

Brief Description of the Drawings

[0010] Figure 1 Shown is a stereoscopic view of the slurry suction mold in the present invention.

[0011] Figure 2 Shown is a side view of the slurry suction mold in the present invention.

[0012] Figure 3 Shown is a longitudinal sectional view of the slurry suction mold in the present invention.

[0013] Figure 4Shown is a schematic diagram of the slurry absorption layer of the slurry absorption mold in the present invention.

[0014] Figure 5 Shown is a stereoscopic view of the hot pressing upper mold in the present invention.

[0015] Figure 6 Shown is a longitudinal sectional view of the hot pressing upper mold in the present invention.

[0016] Figure 7 Shown is a schematic diagram of the hot pressing upper mold adsorbing the preform in the present invention.

[0017] Figure 8 Shown is a stereoscopic view of the hot pressing lower mold in the present invention.

[0018] Fig. 9 Shown is a longitudinal sectional view of the hot pressing lower die in the present invention.

[0019] Fig.10 The figure shows a schematic diagram of the hot pressing upper mold and the hot pressing lower mold in the present invention being combined to hot press a paper-plastic container.

[0020] Fig.11 Shown is a three-dimensional view of the paper-plastic container manufactured by the present invention.

[0021] Fig.12 Shown is a three-dimensional view of the paper-plastic container manufactured by the present invention from another angle.

[0022] Fig.13 Shown is a longitudinal cross-sectional view of the paper-plastic container manufactured by the present invention.

[0023] Fig.14 Shown is a transverse cross-sectional view of the paper-plastic container manufactured by the present invention.

[0024] The numbers in the figure are explained as follows:

[0025] Suction mold 10 base 11 molding groove 12 push cylinder 13

[0026] Inclined groove 14, vertical arc block 15, arc surface 16, hot pressing upper die 20

[0027] Base 21 Upper half groove surface 22 Push-pull cylinder 23 Inclined groove 24

[0028] Arc block 25, arc surface 26, hot pressing lower die 30, base 31

[0029] Lower half arc surface 32 Push-pull circular groove 33 Concave edge strip 34 Groove 35

[0030] Curved surface 36 Step surface 37 Slurry layer A Preliminary product B

[0031] Paper plastic container 40 body 41 flange 411 bottom film 42

[0032] Storage space 43 Support feet 44 Circulation space 441 Top edge 45 [Specific implementation method]

[0033] Since the present invention is used to implement the "paper plastic product manufacturing technology" to manufacture the "anti-scalding paper plastic container", the "anti-scalding paper plastic container mold" protected by the present invention includes a slurry absorption mold 10, a hot pressing upper mold 20 and a hot pressing lower mold 30. Please refer to Figures 1 to 4 As shown, the slurry absorption mold 10 has a base 11, which is a square base. A concave forming groove 12 is provided in the central part of the base 11. The inner edge of the forming groove 12 rises upward to form a push-pull cylinder 13. The top surface of the push-pull cylinder 13 is provided with at least three equally divided inclined grooves 14, and the intervals are arc blocks 15. In the middle surrounded by the inclined grooves 14 and the arc blocks 15 are some slightly concave arc surfaces 16. Such a structure constitutes the slurry absorption mold 10.

[0034] The slurry absorption mold 10 is internally connected to a suction device, and the suction effect of the suction device makes the surface of the push-pull cylinder 13 absorb slurry. The base 11 is connected to a moving device and can move up and down with the moving device, and can even be turned up and down with the moving 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 parts of the slurry absorption mold 10 including the forming groove 12, the push-pull cylinder 13, the inclined groove 14, the vertical arc block 15 and the curved surface 16 are all immersed in the slurry box to absorb slurry, so that a slurry layer A is adsorbed on the surface of the slurry absorption mold 10 including the forming groove 12, the push-pull cylinder 13, the inclined groove 14, the vertical arc block 15 and the curved surface 16, such as Figure 4 In the state shown in the figure, when the slurry absorption time is reached, the moving device drives the slurry absorption mold 10 to absorb the slurry layer A and move upward as a whole to leave the slurry box, and then the moving device further drives the slurry absorption mold 10 to absorb the slurry layer A and move upward to mate with a separate cold pressing mold to squeeze the slurry layer A, so that the slurry layer A is dehumidified to become a primary embryo product B (see first Figure 7 shown).

[0035] Next, see Figures 5 to 7As shown, the hot pressing upper mold 20 has a base 21, which is a square base. The central part of the base 21 is provided with a concave upper half-groove surface 22. The inner edge of the upper half-groove surface 22 rises upward to form a push-out cylinder 23. The top surface of the push-out cylinder 23 is provided with at least three equally divided inclined grooves 24, separated by arc blocks 25. In the middle surrounded by the inclined grooves 24 and the arc blocks 25 are some slightly concave arc surfaces 26. Such a structure constitutes the hot pressing upper mold 20, wherein the position, shape and size of the inclined groove 24, the arc block 25 and the arc surface 26 of the hot pressing upper mold 20 have a one-to-one correspondence with the inclined groove 14, the arc block 15 and the arc surface 16 of the slurry suction mold 10. When in use, when the slurry absorption mold 10 absorbs the preform B, the preform B is transferred to the hot pressing upper mold 20 for absorption through a transfer mechanism. Figure 7 Status shown.

[0036] Next, see Figures 8 to 10 As shown, the hot pressing lower mold 30 has a base 31, which is a square-shaped seat. One side of the base 31 is a raised platform. The central part of the platform is provided with a downward-deep push-out circular groove 33, and its top edge is provided with a lower half arc surface 32. The inner wall of the push-out circular groove 33 is symmetrically provided with two areas of a plurality of concave edge strips 34, all of which are vertically arranged vertically in an upright shape. The bottom surface of the push-out circular groove 33 is pushed downward and provided with at least three equally divided grooves 35. The inner edges of the grooves 35 are connected and connected in the center to form a slightly concave arc surface 36. In addition to the grooves 35 opened downward and the arc surface 36 connected to each other, the bottom surface of the push-out circular groove 33 has a plurality of concave edge strips 34, which are arranged vertically in an upright shape. The area between the at least three equally divided grooves 35 is a step surface 37 that is not pushed downward. Such a structure constitutes the hot pressing lower mold 30, wherein the internal volume of the push-pull circular groove 33 of the hot pressing lower mold 30 is slightly larger than the volume of the push-pull cylinder 23 of the hot pressing upper mold 20, and the position, shape, and size of the lower half-shaped arc surface 32 of the hot pressing lower mold 30 correspond to the upper half-shaped groove surface 22 of the hot pressing upper mold 20. At the same time, the position, shape, and size of the step surface 37, the groove 35, and the arc surface 36 of the hot pressing lower mold 30 correspond to the inclined groove 24, the vertical arc block 25, and the arc surface 26 of the hot pressing upper mold 20. The hot pressing upper mold 20 and the hot pressing lower mold 30 are closed, as shown in FIG. Fig.10 shown.

[0037] When in use, after the hot pressing upper mold 20 receives and absorbs the preform B, the push-pull cylinder 23 of the hot pressing upper mold 20 and the preform B are inserted into the push-pull circular groove 33 of the hot pressing lower mold 30 into the state shown. Fig.10In the action and state shown, the hot pressing upper mold 20 and the hot pressing lower mold 30 are combined to squeeze the preform B again, so that it is shaped into the expected size, and at the same time, the preform B is dried into a paper plastic container 40 through the hot pressing action. Therefore, the manufacturing process is to transfer the slurry absorption mold 10 to absorb the slurry into a slurry layer A, and then extrude and shape it into a preform B through the cold pressing mold, and then the hot pressing upper mold 20 absorbs the preform B, and then the hot pressing upper mold 20 absorbs the preform B and combines with the hot pressing lower mold 30 to shape and hot press the preform B into the paper plastic container 40.

[0038] The structure of the paper plastic container 40 is as follows Figures 11 to 14 As shown, it has a body 41 that is surrounded in a circle and a bottom sheet 42 that is combined with the bottom. The volume range defined by the body 41 and the bottom sheet 42 is a containing space 43. The body 41 has a plurality of flanges 411 that are more prominent than the body 41 on the two symmetrical surfaces of the outer surface. The flanges 411 are vertically arranged vertically. The plurality of flanges 411 are formed because when the hot pressing upper mold 20 and the hot pressing lower mold 30 are closed, the plurality of concave edge strips 34 on the inner wall of the push-pull circular groove 33 squeeze the preform B to shape it, and then it is formed by hot pressing. The body 41 and the flanges 411 The common top portion will, when the hot press upper mold 20 and the hot press lower mold 30 are molded together, squeeze the blank B through the upper half-mold groove surface 22 and the lower half-mold arc surface 32 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 molded together, at least three equally divided supporting feet 44 will be formed through the groove 35 of the hot press lower mold 30 and the arc block 25 of the hot press upper mold 20, the arc surface 36 and the arc surface 26 will be molded together to form the bottom plate 42, and the step surface 37 and the inclined groove 24 will be molded together to form a flow space 441 between the supporting feet 44.

[0039] According to the above-mentioned structural composition, the paper-plastic container 2 is a scalding-proof paper-plastic container particularly suitable for holding hot food and hot soup, and the paper-plastic container 2 adopts the above-mentioned slurry absorption mold 10, hot pressing upper mold 20 and hot pressing lower mold 30, and is manufactured according to the "paper-plastic product manufacturing technology".

Claims

1. A mold for a scald-proof paper-plastic container, comprising a slurry suction mold, a hot pressing upper mold and a hot pressing lower mold, characterized in that: The slurry absorption mold has a base, and a ring-shaped concave forming groove is provided in the central part of the base. The inner edge of the forming groove rises upward to form a push-pull cylinder. At least three equally divided inclined grooves are provided on the periphery of the top surface of the push-pull cylinder, and the interval is an arc block. The middle surrounded by the inclined grooves and the arc blocks is a concave arc surface; the hot pressing upper mold has a base, and a ring-shaped concave upper half-groove surface is provided in the central part of the base. The inner edge of the upper half-groove surface rises upward to form a push-pull cylinder. At least three equally divided inclined grooves are provided on the periphery of the top surface of the push-pull cylinder, and the interval is an arc block. The middle surrounded by the inclined grooves and the arc block is some concave arc surfaces. The position, shape and size of the inclined grooves, arc blocks and arc surfaces of the hot pressing upper mold are one-to-one with the inclined grooves, arc blocks and arc surfaces of the slurry absorption mold. The hot pressing lower mold has a base, one side of which is a raised platform, and a downward-extending push-pull circular groove is provided in the central part of the platform, and its top edge is provided as a lower half-shaped arc 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 arranged vertically in an upright shape. The bottom surface of the push-pull circular groove is pushed downward and provided with at least three equally divided grooves, the inner edges of the grooves are connected and connected in the center to form an upward concave arc surface, and the area between the at least three equally divided grooves is a step surface; the position, shape and size of the lower half-shaped arc surface of the hot pressing lower mold correspond to the upper half-shaped 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 correspond to the inclined groove, vertical arc block and arc surface of the hot pressing upper mold one-to-one.

2. The mold for the anti-scalding paper-plastic container according to claim 1, characterized in that: The internal volume of the push-pull circular groove of the hot-pressing lower die is greater than the volume of the push-pull circular cylinder of the hot-pressing upper die.

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