Automatic forming machine for paper plastic products and manufacturing method thereof

Abstract

The invention discloses an automatic forming machine for paper plastic products and a manufacturing method thereof. A slurry absorbing mold immersed in a slurry box absorbs slurry to form a slurry layer, then rises and leaves the slurry box, and mates with a hot pressing upper mold that moves in from an outer space to extrude a primary embryo product. Then the slurry absorbing mold descends and returns to the slurry box to start a second round of slurry absorbing. The hot pressing upper mold absorbs the primary embryo product and returns to the reverse position. Then a hot pressing lower mold rises and mates with the mold, and the primary embryo product is hot-pressed and formed into a paper plastic product. The hot pressing lower mold absorbs the paper plastic product and descends and returns to the position. Then a material receiving mechanism absorbs the paper plastic product and leaves the hot pressing lower mold for collection. The invention can perform rapid cold extrusion (dehydration) and rapid hot pressing forming after slurry absorbing, thereby improving manufacturing speed, shortening production cycle, and reducing manufacturing cost.

Description

[Technical field]

[0001] The present invention relates to an automatic forming machine for paper and plastic products and a manufacturing method thereof, and in particular to an automatic slurry-absorbing forming machine for paper and plastic products and a manufacturing method thereof, which can improve the manufacturing speed, shorten the production cycle and reduce the manufacturing cost. [Background technology]

[0002] Environmental protection has become a goal pursued by countries around the world. In order to significantly reduce the harm of plastic products to the environment, there are currently products that use pulp fiber materials and / or plant fiber materials as pulp raw materials, and then use a pulp absorption mold to absorb the pulp and attach the pulp, and then use hot pressing and shaping technology to make products. In order to distinguish them from "plastic products", they are generally called "paper plastic products", or they are also called "molded products" or "pulp molded products". They are all called "paper plastic products" in this manual. Paper plastic products have the advantage of being easy to recycle, remanufacture and reuse, which is in line with the trend of environmental protection, reuse and energy saving and carbon reduction. Therefore, they are quickly accepted and adopted by the industrial and commercial industries and the public. Paper plastic products are often seen in products such as bowls, plates, cup lids, packaging materials, shock-absorbing materials, cushioning materials, etc., which are gradually being adopted. It can be said that paper plastic products are large and small in size and of various types.

[0003] The manufacturing process of conventional paper plastic products basically requires multiple operations such as "slurry suction forming", "hot pressing shaping", "finished product transfer" and "end finishing". Among them, "slurry suction forming" and "hot pressing shaping" are the main manufacturing and forming processes of paper plastic products, which generally must be completed by an "automatic paper plastic product forming machine". As for "finished product transfer" and "end finishing", after the manufacturing and forming of paper plastic products are completed, the finished products are further collected and transferred to the end finishing (for example: trimming, inspection, packaging) process. Therefore, it can be seen that the "automatic paper plastic product forming machine" is an important driving force for the completion of paper plastic product manufacturing. It is necessary to have a good "automatic paper plastic product forming machine" and match it with the appropriate manufacturing method (process steps) to manufacture and shape excellent paper plastic products.

[0004] Conventional automatic forming machines for paper plastic products have many kinds of structural components and many matching manufacturing methods. Simply speaking, the automatic forming machines and manufacturing methods used to manufacture relatively large paper plastic products (such as shock absorbers for 3C products) will definitely be different from those used to manufacture relatively small paper plastic products (such as shallow dishes), because the two types of paper plastic products with relatively large volumes and relatively small volumes will differ in the slurry suction method and time, the extrusion dehydration method and time, the hot pressing method and time. To put it more simply, the production cycles of these two types of paper plastic products will definitely be different. Therefore, the automatic forming machines and manufacturing methods for paper plastic products cannot be used in a unified manner and must be appropriately adjusted according to the different paper plastic products to be manufactured.

[0005] The inventor is professionally engaged in the design and manufacture of various automatic forming machines for paper and plastic products, and the design and manufacture of various paper and plastic products. Through long-term experience in various automatic forming machines for paper and plastic products and various paper and plastic products, he found that the currently known various automatic forming machines for paper and plastic products, when used in the manufacture of "light", "small" and "thin" paper and plastic products, have the defect of wasting production cycles. The reason is that the various types of automatic forming machines and manufacturing methods of paper-plastic products currently known are almost all designed for manufacturing large-volume paper-plastic products, and the thickness of large-volume paper-plastic products is relatively thicker. Some are even designed to double the thickness of paper-plastic products. Therefore, when using the conventional automatic forming machine of paper-plastic products to manufacture thin and light paper-plastic products, there will be too much in the slurry suction method and time, the extrusion dehydration method and time, and the hot pressing method and time. Accumulated, each production cycle cannot be shortened accordingly, resulting in the relative inability to reduce the manufacturing cost and the waste of energy. In the industrial age where time is money, efforts to speed up the process and reduce costs have become the kingly way, so the inventor has the idea of ​​improving and manufacturing an automatic forming machine for paper-plastic products that meets the needs of shortening the production cycle. [Summary of the invention]

[0006] The purpose of the present invention is: 1. To provide an automatic forming machine and manufacturing method of paper-plastic products with a completely new structure and process. 2. To provide an automatic forming machine and manufacturing method of paper-plastic products that can increase manufacturing speed, shorten production cycle, and reduce manufacturing cost.

[0007] To achieve the above object, the present invention seeks protection for an automatic paper-plastic product forming machine, comprising:

[0008] A pulp box is fixedly arranged inside a central space, the pulp box contains pulp inside, and the top surface is open;

[0009] A slurry suction mold is supported by a bottom support member through the slurry box and is in a state where the mold surface faces upward. The support member can be lifted and lowered to drive the slurry suction mold to rise and fall synchronously. When the slurry suction mold is in a zero state, it is driven by the support member and immersed in the slurry box. The slurry suction mold is connected to a first pumping device and can accept the suction or blowing action of the first pumping device;

[0010] a hot pressing upper mold, arranged inside one side space and hung on a guide rail, the side space is adjacent to the central space and located on one side of the central space, the mold surface of the hot pressing upper mold faces downward, the mold surface of the hot pressing upper mold and the mold surface of the slurry suction mold are symmetrical in shape, the hot pressing upper mold is driven by an external power mechanism to perform horizontal lateral displacement along the guide rail, the hot pressing upper mold is connected to a second pumping device, and can accept the suction or blowing action of the second pumping device; and

[0011] A hot pressing lower mold is arranged inside the side space and below the hot pressing upper mold. The mold surface of the hot pressing lower mold faces upward, and the mold surface of the hot pressing lower mold is symmetrical with the mold surface of the hot pressing upper mold in shape. The bottom of the hot pressing lower mold is driven by an external power mechanism to perform upright up and down displacement. The hot pressing lower mold is connected to a third pumping device and can accept the suction or blowing action of the third pumping device.

[0012] The above-mentioned automatic forming machine for paper-plastic products, the hot pressing upper mold is divided into a first hot pressing upper mold and a second hot pressing upper mold, the first hot pressing upper mold and the second hot pressing upper mold are respectively arranged in a first side space and a second side space, the first side space and the second side space are both adjacent to the central space and are respectively located on the two sides of the central space, the first hot pressing upper mold and the second hot pressing upper mold are hung on the same guide rail, the guide rail is passed through the upper space of the first side space, the central space and the second side space, the mold surfaces of the first hot pressing upper mold and the second hot pressing upper mold are both facing downward, the mold surfaces of the first hot pressing upper mold and the second hot pressing upper mold are both symmetrical in shape with the mold surface of the slurry suction mold, the first hot pressing upper mold and the second hot pressing upper mold are both driven by an external power mechanism to perform horizontal lateral displacement along the guide rail, the first hot pressing upper mold and the second hot pressing upper mold The two hot pressing upper molds are both connected to a pumping device and can accept the suction or blowing effect of the pumping device; the hot pressing lower mold is divided into a first hot pressing lower mold and a second hot pressing lower mold, the first hot pressing lower mold and the second hot pressing lower mold are respectively arranged inside the first side space and the second side space, the first hot pressing lower mold and the second hot pressing lower mold are respectively located below the first hot pressing upper mold and the second hot pressing upper mold, the mold surfaces of the first hot pressing lower mold and the second hot pressing lower mold are both facing upward, the mold surfaces of the first hot pressing lower mold and the second hot pressing lower mold are respectively symmetrical with the first hot pressing upper mold and the second hot pressing upper mold, the bottoms of the first hot pressing lower mold and the second hot pressing lower mold are both driven by an external power mechanism to perform upright up and down displacement movements, the first hot pressing lower mold and the second hot pressing lower mold are both connected to a pumping device and can accept the suction or blowing effect of the pumping device.

[0013] The above-mentioned automatic forming machine for paper-plastic products further includes a material receiving mechanism, which is arranged outside the side space, and the material receiving mechanism has an upright base, which stands in a fixed position, and a straight track is arranged on one side surface of the upright base; there is a transverse track, which is arranged transversely and crosswise on the straight track, and the transverse track extends a large section toward the direction of the side space, and the transverse track can be driven by an external power mechanism to move up and down along the straight track as a whole, and can be controlled to stop at any time; there is a slide block, which is clamped on the transverse track, and can be driven by an external power mechanism to move laterally along the transverse track, and can be controlled to stop at any time; there is a sliding rod, which is fixed below the slide rail block, and can move laterally along the transverse track with the slide rail block, and can stop at any time with the slide rail block, and the slide rod extends a large section toward the direction of the side space, and an adsorption member is arranged below the slide rod, which can produce an adsorption effect due to being connected to a vacuum suction mechanism.

[0014] In the above-mentioned automatic forming machine for paper-plastic products, the material receiving mechanism is divided into a first material receiving mechanism and a second material receiving mechanism, and the first material receiving mechanism and the second material receiving mechanism are respectively arranged outside the first side space and the second side space.

[0015] In the above-mentioned automatic forming machine for paper-plastic products, the hot pressing upper mold is provided with a plurality of exhaust holes on each slurry suction position on the mold surface of the mold platform, and the exhaust holes are connected to an air chamber upwardly from the inside of the mold platform. The air chamber is connected to an exhaust manifold after being bent outwardly and downwardly through an exhaust middle section pipe, and the exhaust is sucked out by an exhaust mechanism connected to the exhaust manifold. When the inner end of the exhaust middle section pipe is connected to the air chamber, the low point of the inner end of the exhaust middle section pipe is lower than that of the air chamber.

[0016] The above-mentioned automatic forming machine for paper-plastic products has a plurality of blowing holes on the mold surface of the mold table and the hot pressing lower mold at each slurry suction position. The blowing holes lead to an air inlet pipe upward or downward inside the mold table, and the air inlet pipe is connected to collect air from an air inlet mechanism.

[0017] The present invention also claims protection for a method for manufacturing an automatic paper-plastic product forming machine, which uses the above-mentioned automatic paper-plastic product forming machine and then performs the following steps:

[0018] (1) At the beginning, the slurry suction mold is immersed in the slurry box, and then the pumping device connected to the slurry suction mold is started to suck the slurry to form a blank layer on the mold surface of the slurry suction mold;

[0019] (2) When the slurry absorption time is reached, the support member stretches, pushing the slurry absorption mold to absorb the blank layer and leave the slurry box to move upward. During the process, the pumping device connected to the slurry absorption mold continues to suck, so that the blank layer is gradually dehydrated and dehumidified; at the same time, the hot pressing upper mold is driven by the external power mechanism to move laterally along the guide rail into the central space, and stops moving at the position corresponding to the slurry absorption mold. Then the upward slurry absorption mold absorbs the blank layer and extrude the blank layer with the hot pressing upper mold to dehydrate it. During the process, the pumping device connected to the hot pressing upper mold starts the suction effect to help the blank layer dehydrate and dehumidify. When the mold closure extrusion time is reached, the blank layer is dehumidified to become a preliminary blank product. Then the pumping device connected to the slurry absorption mold is converted into a blowing effect, so that the slurry absorption mold is separated from the preliminary blank product, and the hot pressing upper mold absorbs the preliminary blank product.

[0020] (3). Then the hot pressing upper mold absorbs the preform and is driven by the external power mechanism to return to the first side space along the guide rail and stop at the corresponding position of the hot pressing lower mold. Then the hot pressing lower mold is pushed up by the external power mechanism to mate with the hot pressing upper mold to perform hot pressing and shaping operation on the preform together, so that the preform is completely dried to become a paper-plastic product. During the process, the pumping devices connected to the hot pressing upper mold and the hot pressing lower mold start the suction effect to dry the preform into a paper-plastic product.

[0021] (4) When the hot pressing shaping time is reached, the pumping device connected to the hot pressing upper mold stops the suction action and switches to the blowing action to separate from the paper-plastic product, and the hot pressing lower mold absorbs the paper-plastic product and moves downward to wait for collection.

[0022] The manufacturing method of the above-mentioned automatic forming machine for paper and plastic products is as follows: after the hot-pressing lower mold absorbs the paper and plastic product and moves downward to return to its original position, the slide block of the material receiving mechanism is driven by the external power mechanism to move along the transverse track, and drives the sliding rod to drive the adsorption member to move synchronously, so that the sliding rod part and the adsorption member enter the side space, so that the adsorption member is aligned with the paper and plastic product, and then the transverse track is driven by the external power mechanism to descend along the straight track, so that the adsorption member touches the paper and plastic product, and at the same time, the vacuum suction mechanism connected to the adsorption member starts the adsorption effect, and the pumping device connected to the hot-pressing lower mold stops the suction effect, so that the paper and plastic product is transferred to be adsorbed by the adsorption member; then the transverse track rises and returns to its original position along the straight track, and at the same time, the slide block moves in the opposite direction along the transverse track, and drives the sliding rod together with the adsorption member that absorbs the paper and plastic product to withdraw to the outside of the first side space, and then the adsorption member stops the adsorption effect, so that the paper and plastic product is collected.

[0023] In the manufacturing method of the above-mentioned automatic forming machine for paper plastic products, while the hot pressing upper mold absorbs the initial embryo product and returns to its reverse position, the slurry suction mold stops blowing and is driven by the support member to descend into the pulp box to return to the starting position and perform slurry suction, so that another embryo material layer is formed on the mold surface of the slurry suction mold again. Then, while the above-mentioned hot pressing upper mold and the hot pressing lower mold perform hot pressing and shaping operations on the initial embryo product, the slurry suction mold absorbs the other embryo material layer and leaves the pulp box and moves upward. At the same time, another hot pressing upper mold in the other side space moves laterally along the guide rail into the central space to mate with the slurry suction mold to extrude the embryo material. The other blank layer is dehydrated to become another preliminary blank, and then the slurry absorption mold is separated from the other preliminary blank, descends into the slurry box and returns to the starting position, and the other hot pressing upper mold absorbs the other preliminary blank and moves in the opposite direction along the guide rail into the other side space to return to its position, and then another hot pressing lower mold rises and mates with the other hot pressing upper mold, and together they perform another hot pressing shaping operation on the other preliminary blank to make it completely dried to become another paper-plastic product. When the other hot pressing shaping time is up, the other hot pressing upper mold is separated from the paper-plastic product, and the other hot pressing lower mold absorbs the other paper-plastic product and moves downward to return to its position to wait for collection.

[0024] The advantages and beneficial effects of the present invention are that the automatic paper-plastic product forming machine and manufacturing method can improve the manufacturing speed, shorten the production cycle, and reduce the manufacturing cost.

Brief Description of the Drawings

[0025] Figure 1 Shown is a stereoscopic view of the automatic pulp-absorbing forming machine for paper-plastic products of the present invention.

[0026] Figure 2 Shown is a front view of the automatic pulp suction forming machine for paper plastic products of the present invention.

[0027] Figures 3 to 9 Shown is a schematic diagram of the continuous steps of the manufacturing method of the automatic paper plastic product forming machine of the present invention.

[0028] Fig.10 Shown is a three-dimensional view of the first hot pressing upper mold in the present invention.

[0029] Fig.11 Shown is a top view of the first hot pressing upper mold in the present invention.

[0030] Fig.12 Shown is a bottom view of the first hot pressing upper mold in the present invention.

[0031] Fig.13 Shown is a cross-sectional view of the first hot pressing upper mold in the present invention.

[0032] The numbers in the figure are explained as follows:

[0033] Paper plastic product automatic forming machine 1 pulp box 10 central space 11

[0034] Protective cover 12 Suction mold 20 Support member 21

[0035] First hot pressing upper mold 30 First side space 31 Guide rail 32

[0036] Mould table 33, exhaust hole 331, air chamber 332

[0037] Air extraction middle pipe 333 Air extraction main pipe 334 Air blowing hole position 335

[0038] Inlet pipe 336 First hot pressing lower mold 40 Second hot pressing upper mold 50

[0039] Second side space 51 Second hot pressing lower mold 60 First material receiving mechanism 70

[0040] Upright base 71 Vertical track 72 Horizontal track 73

[0041] Slide rail block 74 Slide rod 75 Adsorption member 76

[0042] Second material receiving mechanism 80 upright base 81 straight track 82

[0043] Horizontal rail 83 Slide block 84 Slide rod 85

[0044] Adsorption parts 86 [Specific implementation method]

[0045] The present invention seeks protection for an automatic paper-plastic product forming machine, and also seeks protection for a method for manufacturing the automatic paper-plastic product forming machine, which will be described in turn below.

[0046] The "automatic forming machine for paper-plastic products" claimed in the present invention is an automatic forming machine particularly suitable for manufacturing "light", "small" and "thin" paper-plastic products. Figure 1 and Figure 2 As shown, the automatic paper-plastic product forming machine 1 includes the following components in terms of structure:

[0047] A pulp box 10 is fixedly disposed inside a central space 11, the pulp box 10 contains pulp inside, and the top surface is open;

[0048] A slurry suction mold 20 is supported by a bottom support member 21 (such as a power cylinder, but not limited to) through the slurry box 10 and is in a state where the mold surface faces upward. The support member 21 can be lifted and lowered to drive the slurry suction mold 20 to rise and fall synchronously. When it is in a zero state (or an initial state), driven by the support member 21, the slurry suction mold 20 is immersed in the slurry box 10, that is, when it is in a zero state, the mold surface of the slurry suction mold 20 will be lower than the slurry surface of the slurry box 10. The slurry suction mold 20 is connected to a first pumping device and can accept the suction (vacuum) action or blowing (air supply) action of the first pumping device;

[0049] A first hot pressing upper mold 30 is arranged inside a first side space 31 and hung on a guide rail 32. The first side space 31 is adjacent to the central space 11 and is located on one side of the central space 11, for example, on the right side of the central space 11. The mold surface of the first hot pressing upper mold 30 faces downward, and the mold surface of the first hot pressing upper mold 30 and the mold surface of the slurry suction mold 20 are symmetrical in shape. The first hot pressing upper mold 30 is driven by an external power mechanism and can perform horizontal lateral displacement along the guide rail 32 when needed. The first hot pressing upper mold 30 is connected to a second pumping device and can accept the suction (vacuum) action or blowing (air supply) action of the second pumping device;

[0050] A first hot pressing lower mold 40 is disposed inside the first side space 31 and below the first hot pressing upper mold 30. The mold surface of the first hot pressing lower mold 40 faces upward, and the mold surface of the first hot pressing lower mold 40 is symmetrical with the mold surface of the first hot pressing upper mold 30. The bottom of the first hot pressing lower mold 40 is driven by an external power mechanism (such as a power cylinder, but not limited) and can move vertically when needed. The first hot pressing lower mold 40 is connected to a third pumping device and can accept the suction (vacuum) or blowing (air supply) of the third pumping device.

[0051] A second hot pressing upper mold 50 is disposed inside a second side space 51 and is hung on the same guide rail 32. The second side space 51 is adjacent to the central space 11 and is located on the other side of the central space 11, for example, on the left side of the central space 11. The guide rail 32 passes through the upper space of the first side space 31, the central space 11 and the second side space 51, and a protective cover 12 (such as Figure 2 As shown), the second hot pressing upper mold 50 is used to shield the guide rail 32, the mold surface of the second hot pressing upper mold 50 faces downward, and the mold surface of the second hot pressing upper mold 50 is symmetrical with the mold surface of the slurry suction mold 20. The second hot pressing upper mold 50 is driven by an external power mechanism and can perform horizontal lateral displacement along the guide rail 32 when needed. The second hot pressing upper mold 50 is connected to a fourth pumping device and can accept the suction (vacuum) or blowing (air supply) of the fourth pumping device. It can be seen from the figure that the structure of the second hot pressing upper mold 50 is exactly the same as the aforementioned first hot pressing upper mold 30, except that it is respectively located in the first side space 31 and the second side space 51 adjacent to the two sides of the central space 11;

[0052] a second hot pressing lower mold 60, which is arranged inside the second side space 51 and below the second hot pressing upper mold 50, with the mold surface of the second hot pressing lower mold 60 facing upward, and the mold surface of the second hot pressing lower mold 60 and the mold surface of the second hot pressing upper mold 50 being symmetrical in shape, and the bottom of the second hot pressing lower mold 60 is driven by an external power mechanism (such as a power cylinder, but not limited) and can move vertically when needed, and the second hot pressing lower mold 60 is connected to a fifth pumping device and can accept the suction (vacuum) or blowing (air supply) of the fifth pumping device; as can be seen from the figure, the structure of the second hot pressing lower mold 60 is exactly the same as the aforementioned first hot pressing lower mold 40, except that it is respectively located in the first side space 31 and the second side space 51 adjacent to the two sides of the central space 11;

[0053] A first material receiving mechanism 70 is arranged outside the first side space 31. The first material receiving mechanism 70 has an upright base 71, which is fixedly positioned and stands on a platform or the ground. A straight track 72 is arranged on one side of the upright base 71; a transverse track 73 is arranged transversely and crosswise on the straight track 72. The transverse track 73 extends a large section toward the direction of the first side space 31. The transverse track 73 can be driven by an external power mechanism to move up and down along the straight track 72 as a whole, and can stop at any time due to control; a slide block 7 4, which is clamped on the transverse track 73 and can be pushed by different external power mechanisms to move horizontally along the transverse track 73, and can stop moving at any time due to control; there is a sliding rod 75, which is fixed below the slide block 74, so it can move horizontally along the transverse track 73 along with the slide block 74, and can stop moving at any time along with the slide block 74. The sliding rod 75 also extends a large section toward the direction of the first side space 31. A plurality of adsorption members 76 are arranged below the sliding rod 75, which can produce an adsorption effect due to the rear end being connected to the vacuum suction mechanism; and

[0054] A second material receiving mechanism 80 is arranged outside the second side space 51. The second material receiving mechanism 80 is the same as the first material receiving mechanism 70, and also has an upright base 81 that stands on a platform or the ground at a fixed position. A straight track 82 is also arranged on one side of the upright base 81; there is also a transverse track 83 that is arranged transversely and crosswise on the straight track 82. The transverse track 83 extends a large section toward the direction of the second side space 51. The transverse track 83 can be driven by an external power mechanism to move up and down along the straight track 82 as a whole, and can stop moving at any time due to being controlled. There is also a slide block 84, which is clamped on the transverse track 83. It can be pushed by different external power mechanisms to move horizontally along the transverse track 83, and can stop moving at any time due to control; there is also a sliding rod 85, which is fixed under the slide block 84. It can also move horizontally along the transverse track 83 along with the slide block 84, and can stop moving at any time along with the slide block 84. The sliding rod 85 also extends a large section toward the direction of the second side space 51. A plurality of adsorption members 86 are arranged under the sliding rod 85, which can produce an adsorption effect because the rear end is connected to the vacuum suction mechanism.

[0055] The above is the basic structure of the automatic paper-plastic product forming machine 1 claimed in the present invention. The external power mechanism and the first, second, third, fourth and fifth pumping devices mentioned in various places are not the main components of the present invention, and their functions are obviously established, so they are not shown in the figure to avoid the figure being too complicated and difficult to distinguish.

[0056] According to the structure of the automatic paper-plastic product forming machine 1, the present invention also claims protection for a method for manufacturing the automatic paper-plastic product forming machine, which uses the automatic paper-plastic product forming machine 1 to perform the following steps:

[0057] 1. As Figure 3 As shown, at the beginning, the slurry absorption mold 20 is immersed in the slurry box 10, and then the first pumping device connected to the slurry absorption mold 20 is started to absorb slurry to form a blank layer on the mold surface of the slurry absorption mold 20. It must be emphasized that the mold surface of the slurry absorption mold 20 can be configured with a plurality of slurry absorption parts, so the plurality of slurry absorption parts all absorb slurry to form a plurality of blank layers at the same time.

[0058] 2. If Figure 4 As shown in the figure, when the slurry absorption time is reached, the support member 21 stretches, pushing the slurry absorption mold 20 to absorb the blank layer and move away from the slurry box 10 upward. During the process, the first pumping device continues to suck, so that the blank layer is gradually dehydrated and dehumidified; while the slurry absorption mold 20 rises, the first hot pressing upper mold 30 is also driven by the external power mechanism connected to it to move laterally along the guide rail 32 into the central space 11, and stops moving at the position corresponding to the slurry absorption mold 20, and then the upward slurry absorption mold 20 absorbs the blank layer and the first hot pressing upper mold The mold 30 is closed and squeezed to dehydrate the blank layer. During the process, the second pumping device connected to the first hot pressing upper mold 30 also starts the suction effect to help the blank layer gradually dehydrate and dehumidify. When the short mold closing and squeezing time is over, the blank layer has been dehumidified to become a preliminary blank. Then the first pumping device connected to the slurry suction mold 20 stops the suction effect and switches to the blowing (air supply) effect to separate from the preliminary blank. The second pumping device connected to the first hot pressing upper mold 30 still performs the suction effect to absorb the preliminary blank. It must be emphasized that in Figure 4 In the process shown, the first hot pressing upper mold 30 does not perform hot pressing, but acts as a cold pressing mold.

[0059] 3. Such as Figure 5As shown, the first hot pressing upper mold 30 then absorbs the preform and is driven by the external power mechanism connected to it to move in the opposite direction along the guide rail 32 into the first side space 31 to return to its original position, and stops moving at the position corresponding to the first hot pressing lower mold 40. Then the first hot pressing lower mold 40 is pushed up by the external power mechanism connected to it to close the mold with the first hot pressing upper mold 30. At this time, the preform is between the first hot pressing upper mold 30 and the first hot pressing lower mold 40. Then the first hot pressing upper mold 30 and the first hot pressing lower mold 40 jointly perform hot pressing and shaping operations on the preform for a period of time, so that the preform is completely dried to become a paper-plastic product. During the process, the second and third pumping devices both start the suction effect to cause a thermal cycle, so that the preform is dried as quickly as possible. Paper plastic products; while the first hot pressing upper mold 30 absorbs the initial embryo product and returns to its reverse position, the slurry absorption mold 20 stops blowing (air supply) and is driven by the support member 21 to descend into the slurry box 10 and return to the zero (starting) position. At the same time, the first pumping device connected to the slurry absorption mold 20 starts the suction action again to perform a second round of slurry absorption, so that a blank layer is formed on the mold surface of the slurry absorption mold 20 again; it must be emphasized that while the first hot pressing upper mold 30 and the first hot pressing lower mold 40 perform hot pressing and shaping operations on the initial embryo product, the slurry absorption mold 20 absorbs slurry again to form a blank layer, which belongs to another (second) production cycle, that is, at this time, the hot pressing and shaping operations of the first production cycle are still in progress, and the slurry absorption of the second production cycle has been launched.

[0060] 4. Such as Figure 6 As shown in the figure, when the hot pressing shaping operation time is up, the preform has been dried to become a paper-plastic product, and then the second pumping device connected to the first hot pressing upper mold 30 stops the suction action and switches to the blowing (air supply) action to separate from the paper-plastic product, and the third pumping device connected to the first hot pressing lower mold 40 still performs the suction action to absorb the paper-plastic product, and then the first hot pressing lower mold 40 absorbs the paper-plastic product and moves downward to return to its original position; then the slide block 74 of the first material receiving mechanism 70 is driven by the external power mechanism to move along the transverse track 73, and drives the sliding rod 75 to push the plurality of adsorbents 76 to move synchronously, so that the sliding rod The part 75 and the plurality of adsorbents 76 enter the first side space 31 together, and the plurality of adsorbents 76 align with each paper-plastic product one by one and then stop. Then, the transverse track 73 is driven by the external power mechanism to descend a short distance along the straight track 72, so that the adsorbent 76 touches the paper-plastic product and stops. At the same time, the vacuum suction mechanism connected to the adsorbent 76 starts the adsorption action, and the third pumping device connected to the first hot-pressing lower mold 40 stops the suction action, so that the paper-plastic product is transferred to the adsorbent 76. While performing the above actions, the actions belonging to the second production cycle are also continuously performed, and the same as Figure 6As shown, the slurry absorption mold 20 absorbs the blank layer that has absorbed the slurry again and moves away from the slurry box 10 and upward. At the same time, the second hot pressing upper mold 50 also moves laterally along the guide rail 32 into the central space 11, and slurry absorption mold 20 is combined to squeeze the blank layer to dehydrate it. These actions are exactly the same as those performed by the first hot pressing upper mold 30 mentioned above, so they are not repeated here.

[0061] 5. As Figure 7 As shown, then, the action belonging to the first production cycle is that the transverse track 73 rises back along the straight track 72, and the slide block 74 moves in the opposite direction along the transverse track 73, and drives the sliding rod 75 together with the plurality of adsorbents 76 (adsorbing the majority of paper and plastic products) to withdraw outward to the outside of the first side space 31. During the action, there is a collection container waiting under the plurality of adsorbents 76 (adsorbing the majority of paper and plastic products), so the adsorbent 76 immediately stops the adsorption effect, so that the majority of paper and plastic products enter the collection container, but the collection part is not within the scope of the present invention, so it is not repeated; while performing the above-mentioned actions, the actions belonging to the second production cycle are also continuously performed, and the same as Figure 7 As shown, the second hot pressing upper mold 50 absorbs the preliminary embryo and moves in the opposite direction along the guide rail 32 into the second side space 51 to return to its original position, and then the second hot pressing lower mold 60 rises and closes with the second hot pressing upper mold 50 to jointly perform hot pressing and shaping operations on the preliminary embryo belonging to the second production cycle to make it completely dried into a paper-plastic product. During the process, the slurry absorption mold 20 descends into the slurry box 10 and returns to the zero (starting) position, and then performs the third round of slurry absorption, so that a blank layer is formed on the mold surface of the slurry absorption mold 20 again; it can be emphasized that while the paper-plastic products belonging to the first production cycle are removed and collected, the hot pressing and shaping operations belonging to the second production cycle are also in progress, and the slurry absorption belonging to the third production cycle is also carried out, so that the first, second and third production cycles can be carried out in sequence at the same time to greatly shorten the production cycle.

[0062] 6. Such as Figure 8As shown, then, the action belonging to the second production cycle is that when the hot pressing and shaping operation time is reached, the second hot pressing lower mold 60 absorbs the paper plastic product and moves down to its position, and at the same time, the slide block 84 of the second material receiving mechanism 80 drives the sliding rod 85 to push the plurality of adsorbents 86 to move synchronously along the transverse track 83, so that the sliding rod 85 part and the plurality of adsorbents 86 enter the second side space 51 together, and the plurality of adsorbents 86 are aligned with each paper plastic product one by one, and then the transverse track 83 descends along the straight track 82 to make the adsorbent 86 contact the paper plastic product, and then the adsorbent 86 starts the adsorption effect, and the second hot pressing lower mold 60 stops the suction effect, so that the paper plastic product is transferred to be adsorbed by the adsorbent 86; while performing the above actions, the actions belonging to the third production cycle are also continuously performed, as shown in FIG. Figure 8 As shown, the slurry absorption mold 20 absorbs the blank layer of the third round of slurry absorption and moves away from the slurry box 10 and moves upward. At the same time, the first hot pressing upper mold 30 moves laterally along the guide rail 32 and re-enters the central space 11 to mate with the slurry absorption mold 20 to squeeze the blank layer for dehydration. These actions are exactly the same as those performed by the aforementioned first hot pressing upper mold 30 and the second hot pressing upper mold 50, so they are not repeated here.

[0063] 7. Such as Fig. 9 As shown, the action belonging to the second production cycle is that the transverse track 83 rises and returns along the straight track 82, and the slide block 84 moves in the opposite direction along the transverse track 83, and drives the sliding rod 85 together with the plurality of adsorbents 86 (adsorbing the majority of paper and plastic products) to withdraw outward to the outside of the second side space 51. During the action, there is a collection container waiting under the plurality of adsorbents 86, so the adsorbent 86 stops the adsorption effect immediately, so that the majority of paper and plastic products enter the collection container. Because the collection part does not belong to the scope of the present invention, it is not repeated; while performing the above-mentioned actions, the actions belonging to the third production cycle are also continuously performed, and the same as Figure 7As shown, the first hot pressing upper mold 30 absorbs the embryo product and moves in the opposite direction along the guide rail 32 into the first side space 31 to return to its original position. Then the first hot pressing lower mold 40 rises and closes with the first hot pressing upper mold 30 to jointly perform hot pressing and shaping operations on the embryo product belonging to the third production cycle to form a paper plastic product. During the process, the slurry suction mold 20 descends again into the slurry box 10 to return to the zero (starting) position, and then performs the fourth round of slurry suction, so that a blank layer is formed on the mold surface of the slurry suction mold 20 again; therefore, it can be emphasized that while the paper plastic products belonging to the second production cycle are removed and collected, the hot pressing and shaping operations belonging to the third production cycle are also in progress, and the slurry suction belonging to the fourth production cycle is also carried out, so that when the first production cycle has ended, the second, third, and fourth production cycles are still carried out in sequence. Therefore, the convenience of carrying out multiple production cycles at the same time can increase the manufacturing speed, shorten the production cycle, and reduce the manufacturing cost.

[0064] After the above steps are performed one by one, the expected paper-plastic product can be manufactured and formed, and because the first, second, and third production cycles or the second, third, and fourth production cycles (and so on) can be carried out in sequence at the same time, the expected purpose of the invention of increasing the manufacturing speed, shortening the production cycle, and reducing the manufacturing cost can be achieved.

[0065] From the structure and process steps of the paper plastic product automatic forming machine 1 disclosed above, it can be seen that the first hot pressing upper mold 30 and the second hot pressing upper mold 50, the first hot pressing lower mold 40 and the second hot pressing lower mold 60, and the first material receiving mechanism 70 and the second material receiving mechanism 80 are actually of the same structure and used in the same process steps. The only difference is that the locations of the settings are located on both sides of the central space 11. Therefore, in terms of actual operation, the paper plastic product automatic forming machine 1 must be equipped with the slurry box 10 and the slurry suction mold 20. If only the first hot pressing upper mold 30, the first hot pressing lower mold 40 and the first material receiving mechanism 70 exist, or only the second hot pressing upper mold 50, the second hot pressing lower mold 60 and the second material receiving mechanism 80 exist, the invention purpose of increasing manufacturing speed, shortening production cycle and reducing manufacturing cost can still be achieved by performing rapid cold extrusion (dehydration) and rapid hot pressing molding after slurry suction.

[0066] In the manufacturing process steps disclosed in the above manufacturing method, when the first hot pressing upper mold 30 (or the second hot pressing upper mold 50) and the first hot pressing lower mold 40 (or the second hot pressing lower mold 60) are closed for hot pressing molding, both the first hot pressing upper mold 30 (or the second hot pressing upper mold 50) and the first hot pressing lower mold 40 (or the second hot pressing lower mold 60) will perform suction (vacuum) or blowing (air supply), wherein the suction is mainly to suck out the water vapor released by dehumidification of the primary embryo, and the blowing is to smoothly separate it from the paper-plastic product.

[0067] Taking the first hot pressing upper mold 30 as an example, the first hot pressing upper mold 30 is structured as follows: Figure 10 to Figure 13 As shown, a plurality of air extraction holes 331 (such as Fig.12 As shown in FIG. 1 , the air extraction holes 331 are all connected to an air chamber 332 (as shown in FIG. 1 ) in the mold platform 33. Fig.13 Then, the air chamber 332 is connected to an exhaust manifold 334 (as shown) through an exhaust middle section pipe 333 and then bends downward to the outside. Fig.10 and Fig.11 As shown), the gas is then sucked out by the gas extraction mechanism connected to the rear end of the gas extraction manifold 334; Fig.13 It can be seen that when the inner end of the middle section of the air pumping tube 333 is connected to the air chamber 332, the lowest point of the inner end of the middle section of the air pumping tube 333 is lower than that of the air chamber 332. The purpose of this is that, because the air pumping hole 331 pumps water vapor upward into the air chamber 332, and when the water vapor reaches the air chamber 332, it will be converted into liquid water due to a slight drop in temperature and sink into the air chamber 332. At this time, the lowest point of the inner end of the middle section of the air pumping tube 333 is lower than that of the air chamber 332, which can ensure that the liquid water in the air chamber 332 will definitely enter the middle section of the air pumping tube 333 to be completely sucked out. At the same time, the structure of the middle section of the air pumping tube 333 bending outward and downward and then connecting to the air pumping manifold 334 can ensure that the liquid water is completely discharged and avoids backflow into the air chamber 332. The second hot pressing upper mold 50 is completely the same in structure as Figure 10 to Figure 13 As shown, no more illustration or detailed description is required.

[0068] As for the first hot pressing lower mold 40 and the second hot pressing lower mold 60, since they are turned downward relative to the first hot pressing upper mold 30 and the second hot pressing upper mold 50, that is, their slurry suction holes and exhaust holes are located on the top surface of the mold surface, when suction is performed to make the water vapor reach the air chamber and convert into water liquid, the water liquid will easily enter the exhaust middle section pipe due to gravity and be discharged. Therefore, the low point position of the inner end of the exhaust middle section pipe can be flush with the air chamber without being deliberately lowered.

[0069] Taking the first hot pressing upper mold 30 as an example, Figure 10 to Figure 13 As shown, a plurality of blowing holes 335 are additionally provided on each slurry suction position on the mold surface of the mold table 33 (such as Fig.12 The blowing holes 335 are all connected to an air inlet pipe 336 (as shown in FIG. Fig.13As shown), the air inlet pipe 336 will be connected to collect air from an air inlet mechanism; the blowing hole 335 and the air inlet pipe 336 are set separately, and are not mixed with the exhaust hole 331 and the air chamber 332. The main purpose is that when mixed, there is a risk of blowing the carbonized fibers precipitated in the air chamber 332 onto the mold surface and the paper-molded product. Therefore, the blowing hole 335 and the air inlet pipe 336 are set separately, which can completely eliminate the concern that the carbonized fibers precipitated in the air chamber 332 will be blown onto the mold surface and the paper-molded product, so as to ensure the cleanliness of the mold surface and the paper-molded product. The second hot-pressing upper mold 50, the first hot-pressing lower mold 40 and the second hot-pressing lower mold 60 are also structurally provided with separately operated blowing holes and air inlet pipes, that is, they are completely the same as Figure 10 to Figure 13 As shown, no more illustration or detailed description is required.

Claims

1. An automatic forming machine for paper plastic products, characterized in that: Included are: A pulp box is fixedly arranged inside a central space, the pulp box contains pulp inside, and the top surface is open; A slurry suction mold is supported by a support member at the bottom through the slurry box and is in a state where the mold surface faces upward. The support member performs a lifting action to drive the slurry suction mold to rise and fall synchronously. When the slurry suction mold is in a zero state, it is driven by the support member and immersed in the slurry box. The slurry suction mold is connected to a first pumping device and receives a suction action or a blowing action of the first pumping device; A hot pressing upper mold is arranged inside a side space and hung on a guide rail. The side space is adjacent to the central space and is located on one side of the central space. The mold surface of the hot pressing upper mold faces downward. The mold surface of the hot pressing upper mold and the mold surface of the slurry suction mold are symmetrical in shape. The hot pressing upper mold is driven by an external power mechanism to perform horizontal lateral displacement along the guide rail. The hot pressing upper mold is connected to a second pumping device and receives a suction action or a blowing action of the second pumping device. and a hot pressing lower mold, arranged inside the side space and below the hot pressing upper mold, with a mold surface of the hot pressing lower mold facing upward, and the mold surface of the hot pressing lower mold and the mold surface of the hot pressing upper mold being symmetrical in shape, and the bottom of the hot pressing lower mold being driven by an external power mechanism to move vertically up and down, and the hot pressing lower mold being connected to a third pumping device to receive the suction or blowing action of the third pumping device; It also includes a material receiving mechanism, which is arranged outside the side space, and the material receiving mechanism has an upright base, which stands in a fixed position, and a vertical track is arranged on one side surface of the upright base; there is a transverse track, which is arranged transversely and crosswise on the vertical track, and the transverse track extends a large section toward the side space. The transverse track is pushed by an external power mechanism, and moves up and down along the vertical track as a whole, and stops at any time under control; there is a slide block, which is clamped on the transverse track, and moves laterally along the transverse track due to the push of an external power mechanism, and stops at any time under control; there is a sliding rod, which is fixed under the slide rail block, moves laterally along the transverse track with the slide rail block, and stops at any time with the slide rail block, and the sliding rod extends a large section toward the side space, and an adsorption part is arranged under the slide rod, which produces an adsorption effect due to its connection to the vacuum suction mechanism.

2. The automatic paper-plastic product forming machine according to claim 1, characterized in that: The hot pressing upper mold is divided into a first hot pressing upper mold and a second hot pressing upper mold, the first hot pressing upper mold and the second hot pressing upper mold are respectively arranged in the first side space and the second side space, the first side space and the second side space are both adjacent to the central space and are respectively located on two sides of the central space, the first hot pressing upper mold and the second hot pressing upper mold are hung on the same guide rail, and the guide rail passes through the upper space of the first side space, the central space and the second side space, the mold surfaces of the first hot pressing upper mold and the second hot pressing upper mold are both facing downward, the mold surfaces of the first hot pressing upper mold and the second hot pressing upper mold are both symmetrical in shape with the mold surface of the slurry absorption mold, the first hot pressing upper mold and the second hot pressing upper mold are both driven by an external power mechanism to perform horizontal lateral displacement along the guide rail, and the first hot pressing upper mold and the second hot pressing upper mold are both A pumping device is connected to receive the suction or blowing effect of the pumping device; the hot pressing lower mold is divided into a first hot pressing lower mold and a second hot pressing lower mold, the first hot pressing lower mold and the second hot pressing lower mold are respectively arranged inside the first side space and the second side space, the first hot pressing lower mold and the second hot pressing lower mold are respectively located below the first hot pressing upper mold and the second hot pressing upper mold, the mold surfaces of the first hot pressing lower mold and the second hot pressing lower mold are both facing upward, the mold surfaces of the first hot pressing lower mold and the second hot pressing lower mold are respectively symmetrical with the first hot pressing upper mold and the second hot pressing upper mold, the bottoms of the first hot pressing lower mold and the second hot pressing lower mold are both driven by an external power mechanism to perform upright up and down displacement, the first hot pressing lower mold and the second hot pressing lower mold are both connected to a pumping device to receive the suction or blowing effect of the pumping device.

3. The automatic paper-plastic product forming machine according to claim 2, characterized in that: The material receiving mechanism is divided into a first material receiving mechanism and a second material receiving mechanism. The first material receiving mechanism and the second material receiving mechanism are respectively arranged outside the first side space and the second side space.

4. The automatic paper-plastic product forming machine according to claim 1, characterized in that: The hot pressing upper mold is provided with a plurality of exhaust holes on each slurry suction position on the mold surface of the mold platform. The exhaust holes lead upward to an air chamber inside the mold platform. The air chamber is connected to an exhaust manifold after being bent outward and downward through an exhaust middle section pipe. The air is sucked and discharged by an exhaust mechanism connected to the exhaust manifold. When the inner end of the exhaust middle section pipe is connected to the air chamber, the low point of the inner end of the exhaust middle section pipe is lower than that of the air chamber.

5. The automatic paper-plastic product forming machine according to claim 1, characterized in that: The hot pressing upper mold and the hot pressing lower mold are provided with a plurality of blowing holes on each slurry suction position on the mold surface of the mold platform. The blowing holes are connected to an air inlet pipe upward or downward inside the mold platform. The air inlet pipe is connected and collected by an air inlet mechanism.

6. A method for manufacturing an automatic paper-plastic product forming machine, which is implemented by using the automatic paper-plastic product forming machine according to any one of claims 1 to 5, characterized in that: The specific steps are as follows: (1) At the beginning, the slurry suction mold is immersed in the slurry box, and then the pumping device connected to the slurry suction mold is started to suck the slurry to form a blank layer on the mold surface of the slurry suction mold; (2) When the slurry absorption time is reached, the support member stretches, pushing the slurry absorption mold to absorb the blank layer and leave the slurry box to move upward. During the process, the pumping device connected to the slurry absorption mold continues to suck, so that the blank layer is gradually dehydrated and dehumidified; at the same time, the hot pressing upper mold is driven by the external power mechanism connected to it to move laterally along the guide rail into the central space, and stops moving at the position corresponding to the slurry absorption mold. Then the upward slurry absorption mold absorbs the blank layer and extrude the blank layer with the hot pressing upper mold to dehydrate it. During the process, the pumping device connected to the hot pressing upper mold starts the suction effect to help dehydrate and dehumidify the blank layer. When the die closing and extrusion time is reached, the blank layer is dehumidified to become a preliminary blank product. Then the pumping device connected to the slurry absorption mold is converted into a blowing effect, so that the slurry absorption mold is separated from the preliminary blank product, and the hot pressing upper mold absorbs the preliminary blank product; (3) Then the hot pressing upper mold absorbs the preform and is driven by the external power mechanism connected to it to return to the first side space along the guide rail and stop at the corresponding position of the hot pressing lower mold. Then the hot pressing lower mold is pushed up by the external power mechanism connected to it to close the mold with the hot pressing upper mold, and the preform is hot pressed and formed together to completely dry the preform into a paper-plastic product. During the process, the pumping devices connected to the hot pressing upper mold and the hot pressing lower mold start the suction function to dry the preform into a paper-plastic product. (4) When the hot pressing shaping time is up, the pumping device connected to the hot pressing upper mold stops the suction action and switches to the blowing action to separate from the paper-plastic product, and the hot pressing lower mold absorbs the paper-plastic product and moves downward to wait for collection; After the hot-pressing lower mold absorbs the paper-plastic product and moves downward to its original position, the slide block of the material receiving mechanism is pushed by the external power mechanism to move along the transverse track, and drives the sliding rod to push the adsorption member to move synchronously, so that the sliding rod part and the adsorption member enter the side space, so that the adsorption member is aligned with the paper-plastic product, and then the transverse track is pushed by the external power mechanism to descend along the straight track, so that the adsorption member touches the paper-plastic product, and at the same time, the vacuum suction mechanism connected to the adsorption member starts the adsorption effect, and the pumping device connected to the hot-pressing lower mold stops the suction effect, so that the paper-plastic product is transferred to be adsorbed by the adsorption member; then the transverse track rises and returns to its original position along the straight track, and at the same time, the slide block moves in the opposite direction along the transverse track, and drives the sliding rod together with the adsorption member that absorbs the paper-plastic product to withdraw to the outside of the first side space, and then the adsorption member stops the adsorption effect, so that the paper-plastic product is collected.

7. The method for manufacturing the automatic paper-plastic product forming machine according to claim 6, characterized in that: While the hot pressing upper mold absorbs the initial blank and returns to its reverse position, the slurry suction mold stops blowing and is driven by the support to descend into the slurry box to return to the starting position and perform slurry suction, so that another blank layer is formed on the mold surface of the slurry suction mold again. Then, while the hot pressing upper mold and the hot pressing lower mold perform hot pressing and shaping operations on the initial blank, the slurry suction mold absorbs the other blank layer and moves away from the slurry box and upwards. At the same time, another hot pressing upper mold in the other side space moves laterally along the guide rail into the central space to mate with the slurry suction mold to extrude the other blank layer for dehydration. Another preliminary embryo product, and then the slurry absorption mold is separated from the other preliminary embryo product and descends into the slurry box to return to the starting position, and the other hot pressing upper mold absorbs the other preliminary embryo product and moves in the opposite direction along the guide rail into the other side space to return to its position, and then another hot pressing lower mold rises and mates with the other hot pressing upper mold, and together they perform another hot pressing shaping operation on the other preliminary embryo product to make it completely dried to become another paper-plastic product. When the other hot pressing shaping time is up, the other hot pressing upper mold is separated from the paper-plastic product, and the other hot pressing lower mold absorbs the other paper-plastic product and moves downward back to wait for collection.

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