CN211420729U

CN211420729U - Plant fiber tableware forming system

Info

Publication number: CN211420729U
Application number: CN201922361693.8U
Authority: CN
Inventors: 赵伟; 朱旭; 刘醇晟
Original assignee: Guangxi Forspai Environmental Protection Technology Co ltd
Current assignee: Guangxi Forspai Environmental Protection Technology Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-09-04
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a plant fiber tableware forming system, which comprises a frame, a feeding device for supplying and temporarily storing slurry, a forming tank for receiving the slurry supplied by the feeding device and a vacuum slurry draining device; a forming die is arranged in the forming pool, and a filtering structure which only allows slurry water in the slurry to pass through is arranged in the forming die; a vapor-liquid separator is arranged in the vacuum slurry draining device, the vapor-liquid separator is communicated with the forming die, and the vapor-liquid separator sucks, filters and shapes the slurry in the forming pool on a filtering structure through negative pressure; the steam-liquid separator can separate the slurry from the vacuum after the slurry passes through the forming die. The plant fiber tableware forming system realizes quick sizing by using the feeding device, thereby reducing the sizing time; the vapor-liquid separator is adopted to provide negative pressure, so that slurry is convenient to form, and simultaneously, the vapor-liquid separator realizes the separation of slurry and vacuum, and the recovery and reutilization of different raw materials are realized.

Description

Plant fiber tableware forming system

Technical Field

The utility model relates to a plant fiber shaping technical field especially relates to a plant fiber tableware molding system.

Background

With the development of society and the continuous progress of technology, the utilization of plant fiber is more and more, and tableware or paper products made of the plant fiber basically realize industrialized production, so that the influence of plastic products on the environment is greatly reduced.

Some existing plant forming devices generally adopt a centrifugal dehydration mode to shape pulp on a forming die, for example, Chinese patent ZL 971162298-manufacturing technology and equipment of paper tableware, utensils and packaging products, products produced by the devices in the patent are large in limitation, and the centrifugal force is provided by rotation, so that the whole production device is large in size, inconvenient to pulp inlet, easy to splash pulp water in the centrifugal process, space occupied and large in production cost.

For this reason, some enterprises design a way of utilizing vacuum pulp absorption, for example, in the environmental-friendly production method and equipment for high-value-added utilization of waste paper in chinese patent ZL201110244527.5, the principle of vacuum pulp absorption and feeding is adopted, but the method still designs and reforms on the basis of rotary centrifugation, still does not jump out of the technical idea of centrifugal dehydration, and still has defects in structural design. In addition, in the Chinese patent ZL 201110244527.5-environment-friendly production method and equipment for high-value-added utilization of waste paper, the problem of how to recycle and treat the centrifuged pulp water is solved, so that how to design a brand-new plant fiber forming device to solve the problem is a problem which is urgently needed to be solved at present.

Disclosure of Invention

The utility model discloses aim at solving one of the above-mentioned technical problem at least, provide a plant fiber tableware molding system, adopt the fashioned mode of vacuum suction thick liquid, abandoned the traditional shaping mode that utilizes the centrifugal shaping separation, the shaping is effectual.

In order to realize the purpose, the utility model discloses a technical scheme be:

a plant fiber tableware forming system comprises

A frame;

a feeding device for supplying and temporarily storing the slurry,

the forming tank is used for receiving the slurry supplied by the feeding device, and a forming die is arranged in the forming tank; and

the vacuum slurry draining device is internally provided with a vapor-liquid separator which can have vacuum negative pressure and is communicated with the forming die, and the vapor-liquid separator sucks, filters and shapes the slurry in the forming die on the forming die through the negative pressure;

wherein, the gas-liquid separator can separate the slurry from the vacuum after penetrating through the forming die.

As an improvement of the technical scheme, the vapor-liquid separator comprises a first tank and a second tank, the first tank is communicated with the bottom of the forming die, and the first tank can be communicated with external negative pressure equipment; the second tank is positioned below the first tank and is communicated with the first tank; a first control valve is arranged between the second tank and the first tank, and a third control valve is arranged between the first tank and the bottom of the forming die.

As an improvement of the above technical scheme, the first tank is communicated with an external negative pressure device through a fourth control valve, and the negative pressure device provides negative pressure for the vapor-liquid separator, so that slurry in the forming pool passes through the forming die and enters the first tank.

As an improvement of the technical scheme, the bottom of the second tank is provided with a slurry outlet which is communicated with an external recovery pipeline, and a second control valve is arranged between the slurry outlet and the external recovery pipeline.

As an improvement of the technical scheme, the feeding device is provided with an intermittent supply pipeline, a constant flow pipeline, an upper chamber and a lower chamber, the lower chamber is communicated with the forming pool, one side of the upper chamber is communicated with the forming pool in an opening and closing mode, the output end of the intermittent supply pipeline is communicated with the lower chamber through a fifth control valve, and the output end of the constant flow pipeline is communicated with the upper chamber through a sixth control valve.

As an improvement of the technical scheme, the lower chamber is arranged below the forming pool, the forming pool and the lower chamber are separated by a partition plate, and the partition plate is provided with a plurality of pulp passing holes communicating the lower chamber and the forming pool.

As an improvement of the technical scheme, one end of the anti-settling pipeline is communicated with the feeding end of the intermittent supply pipeline or the constant flow pipeline, and the other end of the anti-settling pipeline is communicated with the side wall of the bottom of the upper chamber.

As an improvement of the technical scheme, a forming area is arranged in the forming pool, the forming die is installed in the forming area, a vacuum cavity is arranged in the forming area, the input end of the vacuum cavity is communicated with the bottom of the forming die, and the input end of the vapor-liquid separator is communicated with the output end of the vacuum cavity.

As an improvement of the technical scheme, the vacuum cavity is communicated with an air blowing pipeline, and the air blowing pipeline is connected with an external air inlet pipeline through a seventh control valve.

As an improvement of the above technical solution, the forming area includes a deck plate and a water collecting tray, the deck plate is buckled on the water collecting tray to form the vacuum cavity, the deck plate is provided with a plurality of adsorption holes, and the forming mold is installed on the deck plate and is communicated with the adsorption holes; the bottom of the water collecting tray is communicated with the input end of the gas-liquid separator.

Compared with the prior art, the beneficial effects of this application are:

the utility model discloses a plant fiber tableware forming system, utilize the feed arrangement to supply with and keep in thick liquids, realize the quick sizing, reduced the time of sizing, improve the efficiency of production; designing a forming die in the forming pool, and shaping the plant fibers in the slurry by using the forming die to ensure the forming of the product; in addition, in the application, the steam-liquid separator is used for providing negative pressure, the negative pressure is used for sucking, filtering and shaping the slurry in the forming pool on the forming die, and the steam-liquid separator is used for receiving the slurry passing through the forming die and separating the slurry from vacuum, so that different raw materials are recycled. The whole forming process of this application has abandoned the tradition completely and has adopted the mode of gyration centrifugal dehydration to carry out shaping plant fiber thick liquids, has avoided splashing and the thick liquid is difficult to the problem of retrieving at the forming process thick liquids, has reduced the cost of production, and whole equipment structure is more simple, and manufacturing cost reduces.

Drawings

The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings, in which:

fig. 1 is a first schematic structural diagram of the embodiment of the present invention after the forming mold is removed;

fig. 2 is a schematic structural diagram ii of the embodiment of the present invention after the forming mold is removed;

fig. 3 is a partial schematic structural diagram of an embodiment of the present invention;

fig. 4 is a top view of an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along A-A of FIG. 4;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 7 is a connecting structure diagram of the forming mold and the forming area in the embodiment of the present invention;

FIG. 8 is a schematic view of a molding die according to an embodiment of the present invention;

fig. 9 is a schematic view of the overall structure of the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can be intervening components, and when a component is referred to as being "disposed in the middle," it is not just disposed in the middle, so long as it is not disposed at both ends, but rather is within the scope of the middle. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items

As shown in fig. 1 to 9, the utility model provides a plant fiber tableware forming system, which comprises a frame 1, a feeding device 2, a forming tank 3 and a vacuum slurry draining device, wherein the feeding device 2 is used for supplying and temporarily storing slurry; the forming tank 3 is used for receiving the slurry supplied by the feeding device 2, a forming die 31 is arranged in the forming tank 3, and a filtering structure 36 for only allowing slurry in the slurry to pass through is arranged in the forming die 31; a vapor-liquid separator 4 is arranged in the vacuum slurry draining device, the vapor-liquid separator 4 can have vacuum negative pressure, the vapor-liquid separator 4 is communicated with the forming die 31, and the vapor-liquid separator 4 sucks, filters and shapes the slurry in the forming pool 3 on the filtering structure 36 through the negative pressure; the vapor-liquid separator 4 can separate the slurry having passed through the molding die 31 from the vacuum. The plant fiber tableware forming system disclosed by the invention has the advantages that the feeding device 2 is used for supplying and temporarily storing the sizing agent, so that the rapid sizing is realized, the sizing time is reduced, and the production efficiency is improved; designing a forming die 31 in the forming pool 3, and forming the plant fibers in the slurry by using the forming die 31 to ensure the forming of the product; in addition, in the application, the vapor-liquid separator 4 is used for providing negative pressure, the slurry in the forming pool 3 is sucked, filtered and shaped on the forming die 31 by the negative pressure, and the vapor-liquid separator 4 also receives the slurry passing through the forming die 31 and separates the slurry from vacuum, so that different raw materials are recycled. The whole forming process of this application has abandoned the tradition completely and has adopted the mode of gyration centrifugal dehydration to carry out shaping plant fiber thick liquids, has avoided splashing and the thick liquid is difficult to the problem of retrieving at the forming process thick liquids, has reduced the cost of production, and whole equipment structure is more simple, and manufacturing cost reduces.

Referring to fig. 1 to fig. 3, in the present application, the feeding device 2 is connected to an external pulp supply system, and the pulp supply system is not a scope of protection of the present application, and therefore, it is not described in detail herein, and reference may be made to the structure of the pulp processing portion in the chinese patent ZL 201110244527.5-environmental production method and apparatus for high value-added utilization of waste paper, and of course, reference may also be made to another pulp supply system in the prior art. Generally, in order to improve the efficiency of the whole production, one slurry supply system is generally used to simultaneously supply a plurality of forming systems through pipelines, and the slurry supply system is also designed in the application. The feeding end of the feeding device 2 is communicated with a main feeding pipeline of an external slurry feeding system, wherein the feeding device 2 is provided with an intermediate feeding pipeline 21, a constant flow pipeline 22, an upper chamber 23 and a lower chamber 24, the lower chamber 24 is communicated with the forming pool 3, one side of the upper chamber 23 is communicated with the forming pool 3 in an opening and closing mode, the output end of the intermediate feeding pipeline 21 is communicated with the lower chamber 24 through a fifth control valve 25, and the output end of the constant flow pipeline 22 is communicated with the upper chamber 23 through a sixth control valve 26.

It should be noted that, in the present application, the upper chamber 23 and the lower chamber 24 are designed at the same time, and the main purpose is to increase the feeding rate in the pulp feeding process, shorten the time of each pulp feeding cycle, and further increase the production efficiency. For this reason, the intermediate supply line 21 and the constant flow line 22 are used in the present application to supply the slurry to the lower chamber 24 and the upper chamber 23, respectively, in different ways, and the following detailed description is made here: the upper chamber 23 serves in this application to temporarily store the slurry, while the lower chamber 24 is of conventional feed construction. The lower chamber 24 is directly communicated with the forming pool 3, so that the arrangement of the fifth control valve 25 is necessary, the forming die 31 in the forming pool 3 can cut off the intermediate supply pipeline 21 to supply slurry during forming, and the disorder of new and old slurry is avoided; in order to avoid the serious water hammer caused by closing the fifth control valve 25, the sixth control valve 26 is opened to enable the upper chamber 23 to store and feed materials, so that the feeding device 2 is always in an open state, and the water hammer is avoided. In addition, in another embodiment of the present application, one end of the anti-settling pipe 27 is connected to the feeding end of the intermediate supply pipe 21 or the constant flow pipe 22, and the other end of the anti-settling pipe 27 is connected to the bottom side wall of the upper chamber 23. The anti-settling conduit 27 always feeds the pulp into the upper chamber 23, so that the pulp in the whole upper chamber 23 can be disturbed, and plant fibers are prevented from settling.

In addition, after the forming mold 31 performs a forming operation in the forming tank 3, all the slurry in the lower chamber 24 needs to be emptied, and the fifth control valve 25 is closed. After the old slurry in the lower chamber 24 and the forming pool 3 is emptied, the fifth control valve 25 is opened, the lower chamber 24 is fed, meanwhile, the upper chamber 23 and the forming pool 3 are opened, and the slurry pre-stored in the upper chamber 23 enters the forming pool 3, so that the rapid feeding to the forming pool 3 is realized, and the feeding speed is improved. In the present application, the fifth control valve 25 and the sixth control valve 26 are each an electric butterfly valve in order to improve the convenience of the entire feed control. It should be noted that the sixth control valve 26 may be closed when the upper chamber 23 supplies the slurry to the forming tank 3, or may not be closed.

With further reference to fig. 1 to 5, a communication channel 2d is provided between the upper chamber 23 and the forming pond 3, and a second gate assembly 28 is provided on the communication channel 2 d. Because need consider in this application that the thick liquids of keeping in upper chamber 23 can flow to forming pool 3 fast, for this highly design the planar height in whole upper chamber 23 place higher than the planar height in forming pool 3 place, improved the discharge rate of the thick liquids of keeping in upper chamber 23. In addition, the design of the communication channel 2d can also avoid the splashing of the slurry and optimize the production environment. The lower chamber 24 is arranged below the forming pool 3, the forming pool 3 and the lower chamber 24 are separated by a partition plate 6, and a plurality of pulp passing holes 61 which are communicated with the lower chamber 24 and the forming pool 3 are arranged on the partition plate 6. The lower chamber 24 is annular and is arranged below the edge area of the forming pool 3, and the design enables the lower chamber 24 to uniformly gush the supplied slurry into the whole forming pool 3 from the circumferential direction when the slurry is supplied, so that the supply rate is improved, and the slurry can be uniformly mixed.

Referring to fig. 5 and 6, in the present application, since it is necessary to recover the old slurry remaining in the entire molding pool 3, one side of the lower chamber 24 is communicated with the recovery tank 7, and a first gate assembly 29 is disposed between the recovery tank 7 and the lower chamber 24. Wherein the first gate assembly 29 and the second gate assembly 28 have the same structure, in this application, the first gate assembly 29 includes a gate plate installed between the recovery tank 7 and the lower chamber 24 and a telescopic mechanism for controlling the gate plate to ascend and descend, and the telescopic mechanism may be a motor or a cylinder. In other embodiments of the present application, the communication opening between the recovery tank 7 and the lower chamber 24 is designed with limiting groove plates on both sides, and the shutter is movably inserted between the limiting groove plates on both sides. Further, the lower end of the recovery tank 7 communicates with an external recovery line through a main return pipe 2 c. In order to avoid the overflow of the upper chamber 23 from polluting the equipment due to excessive feeding amount, an overflow structure 2a is arranged in the upper chamber 23, and the overflow structure 2a is communicated with a main return pipe 2c through a recovery pipe 2 b.

With further reference to fig. 2, 4, 5, 7 and 8, a forming area 32 is provided in the forming pool 3, the forming mold 31 is installed in the forming area 32, a vacuum chamber 33 is provided in the forming area 32, an input end of the vacuum chamber 33 is communicated with a bottom of the forming mold 31, and an input end of the vapor-liquid separator 4 is communicated with an output end of the vacuum chamber 33. Wherein, lower chamber 24 is the annular setting and is in shaping district 32 periphery bottom, and such design can make lower chamber 24 when advancing thick liquid, and thick liquid gushes out from shaping pond 3 bottom week side, reaches the purpose of mixing. The forming area 32 comprises a table panel 321 and a water collecting tray 322, the table panel 321 is fastened on the water collecting tray 322 to form the vacuum cavity 33, a plurality of adsorption holes 323 are formed in the table panel 321, and the forming mold 31 is installed on the table panel 321 and communicated with the adsorption holes 323; the bottom of the water collecting tray 322 is communicated with the input end of the gas-liquid separator 4. The water collecting tray 322 is similar to a funnel-shaped structure, and in actual use, a plurality of water collecting trays 322 can be arranged, and then the output ends of all the water collecting trays 322 are connected to the gas-liquid separator 4 in parallel. In addition, in order to improve the installation convenience of the forming mold 31, a plurality of installation positions for installing the forming mold 31 are provided on the table panel 321, and the forming mold can be installed on the installation positions through bolts.

Referring also to fig. 1, 3 and 9, in another embodiment of the present application, the vacuum chamber 33 communicates with a blow line 34, the blow line 34 being connected to an external air intake line via a seventh control valve 35. The air blowing pipeline 34 is mainly arranged to blow slurry in an air blowing mode, so that the slurry can be effectively mixed before being sucked by the vapor-liquid separator 4, and the later slurry sucking and precipitation are facilitated. Referring to fig. 7 and 8, in the present application, the forming mold 31 is provided with a forming cavity 311, and the filter structure 36 is installed in the forming cavity 311, wherein it should be noted that the forming cavity 311 and the filter structure 36 are both the copying structure of the product, and different products have forming cavities 311 and filter structures 36 with different shapes. In the present application, the filtering structure 36 may be a filtering net or a structure similar to the filtering net, and the filtering structure 36 only allows the slurry water in the slurry to pass through, but may also allow a trace amount of plant fibers to pass through. The molding cavity 311 is communicated with the vacuum cavity 33, wherein the molding cavity 311 is provided with a plurality of communication holes communicated with the vacuum cavity 33. In actual use, the molding cavities 311 are provided with several groups, which are designed according to actual requirements. The vacuum cavity 33 is designed to provide an equal negative pressure to the forming cavities 311 at the same time, so that each forming cavity 311 can suck the slurry uniformly.

With further reference to fig. 1, 3 and 9, the vacuum slurry draining device of the present application may actually further include a negative pressure device 5, wherein the negative pressure device 5 serves as a vacuum power source in the whole vacuum slurry draining device, and actually in another embodiment of the present application, the negative pressure device 5 may be integrated with the vapor-liquid separator 4, so that the vapor-liquid separator 4 has a vacuum generating capability, and of course, the vacuum is needed for the whole forming system not only for the vapor-liquid separator 4, but also for the present application, the negative pressure device 5 is provided separately and serves as a vacuum source for the vapor-liquid separator 4. The negative pressure device 5 can be a conventional vacuum pump station system, and consists of a vacuum pump, a vacuum pipeline, a vacuum storage tank and a plurality of corresponding valve bodies, and the details are not described in the application due to the conventional technology.

For this purpose, the vapor-liquid separator 4 in the present application includes a first tank 41 and a second tank 42, the first tank 41 communicates with the bottom of the forming die 31, and the first tank 41 may communicate with the external negative pressure device 5; the second tank 42 is located below the first tank 41 and is in communication with the first tank 41; a first control valve 43 is arranged between the second tank 42 and the first tank 41, and a third control valve 44 is arranged between the first tank 41 and the bottom of the forming die 31. In order to further increase the ease of control and to enable the vacuum to be broken in time, the first tank 41 is in communication with an external negative pressure device 5 via a fourth control valve 45, the negative pressure device 5 providing a negative pressure to the vapour-liquid separator 4 such that the slurry in the forming pond 3 passes through the filter structure 36 into the first tank 41. The purpose is mainly to maintain the vacuum in the first tank 41 during later inspection of the negative pressure equipment 5. In addition vacuum waterlogging caused by excessive rainfall device in this application, can also be provided with other structures, for example wash the structure, let in a washing water pipe in first jar 41 or second jar 42, utilize various valve bodies on first jar 41 or the second jar 42 to mutually support, adopt above-mentioned thick liquid water exhaust mode to carry out the abluent waste water of discharging, can realize the cleaning work of first jar 41, second jar 42 isotructure like this, guarantee subsequent work normal clear.

Referring to fig. 9, it should be noted that in the present application, the first tank 41 is adopted to receive the slurry and vacuum in advance and then transfer the slurry to the second tank 42, or the second tank 42 directly receives the slurry and vacuum, then the first control valve 43 is used to cut off the vacuum between the second tank 42 and the first tank 41, and then the slurry and partial vacuum in the second tank 42 are discharged, so that the vacuum waste in the whole vacuum slurry draining device is reduced, and the production cost is reduced. Wherein after the suction filtration of the first tank 41 is completed, the third control valve 44 closes the connection between the first tank 41 and the bottom of the forming die 31 to prevent outside air from entering the vapor-liquid separator 4 through the forming die 31, so that vacuum is not wasted. After the third control valve 44 is closed, since the first tank 41 is higher than the second tank 42, if the first control valve 43 is in an open state for this reason, the slurry water enters into the second tank 42; after the slurry completely enters the second tank 42, the first control valve 43 is closed, so that the first tank 41 and the external negative pressure device 5 are still in a vacuum state, and we default that the second tank 42 is in a closed structure, and there is no vacuum leakage, and we can take out the second tank 42 to discharge the slurry in the second tank 42 when the first control valve 43 is closed. Therefore, the gas-liquid separator 4 can realize the transfer of slurry between the first tank 41 and the second tank 42 through the control of different valve bodies, and only wastes the vacuum in the second tank 42 when the slurry is discharged, thereby greatly reducing the waste of the whole vacuum and reducing the energy consumption of production.

Referring to fig. 9, in another embodiment of the present application, in order to reduce labor intensity and the trouble of frequently disassembling and assembling the second tank 42 by a human to drain the slurry, a slurry outlet 46 is provided at the bottom of the second tank 42, the slurry outlet 46 communicates with an external recycling pipeline, and a second control valve 47 is provided between the slurry outlet 46 and the external recycling pipeline. A second control valve 47 is arranged between the slurry outlet 46 and the external recovery pipeline 34. Thus, when slurry enters the second tank 42 from the first tank 41, the second control valve 47 is closed, thus reducing the loss of vacuum of the whole system through the slurry outlet 46; after the slurry completely enters the second tank 42, the first control valve 43 is closed, at this time, two independent spaces are formed between the second tank 42 and the first tank 41, at this time, the second control valve 47 is opened, the slurry in the second tank 42 is naturally discharged, meanwhile, the vacuum in the first tank 41 is not influenced, the utilization rate of the vacuum is improved, and the energy consumption is reduced. Wherein the external recycling pipeline can be communicated with the whole production system of the plant fiber pulp to realize the recycling of the pulp. Of course, the external recycling pipes may be recycling tanks, which are configured with a structure such as a feeding pump and corresponding pipes, and the old pulp in the recycling tanks is supplied to the whole plant fiber pulp production system by the feeding pump, and then the pulp is reconfigured and supplied to the feeding device 2.

Referring to fig. 9, the present invention further provides a molding method for the molding system, the whole process is as follows: firstly, preparing slurry supply, namely opening a fifth control valve 25, supplying slurry to an upper chamber 23 by a constant flow pipeline 22 until the slurry reaches the overflow capacity in the upper chamber 23, and closing the fifth control valve 25; then, the slurry feeding operation is performed, the sixth control valve 26 is opened, and the intermediate supply pipe 21 supplies the slurry to the lower chamber 24; opening the gate group between the upper chamber 23 and the forming tank 3, allowing the slurry in the upper chamber 23 to flow to the forming tank 3, and closing the sixth control valve 26 and the gate group when the slurry in the forming tank 3 reaches a preset volume; then, the seventh control valve 35 is opened, and the air blowing pipeline 34 blows air to the forming die 31, so that the slurry in the forming pool 3 is uniformly flushed; then the seventh control valve 35 is closed, then the third control valve 44 between the forming die 31 and the first tank 41 and the fourth control valve 45 between the first tank 41 and the negative pressure device 5 are opened, the plant fibers in the pulp in the forming pool 3 are sucked, filtered and shaped on the filtering structure 36 by the negative pressure in the first tank 41, the pulp water in the pulp enters the first tank 41 through the forming die 31 until the pulp liquid level in the forming pool 3 is lower than the feeding plane of the forming die 31, and the third control valve 44 and the fourth control valve 45 are closed; further opening the first control valve 43 between the first tank 41 and the second tank 42, the slurry in the first tank 41 flows into the second tank 42, and closing the first control valve 43 until the slurry completely enters the second tank 42; the second control valve 47 is opened, and the slurry in the second tank 42 is discharged together with the vacuum therein; after the slurry is discharged, the second control valve 47 is closed; finally, the molded product on the molding die 31 is taken down, and the residual slurry in the lower chamber 24 is emptied to complete slurry molding.

Wherein the set of gates in the above operation is the second gate assembly 28 and in the last operation emptying of the remaining slurry in the lower chamber 24, the first gate assembly 29 is actually activated so that the remaining slurry in the lower chamber 24 can pass into the recovery tank 7 and thus into the external recovery pipe. A level sensor is provided in the forming tank 3, which is capable of controlling the action of the sixth control valve 26 and the second shutter assembly 28, the level sensor controlling the movement of the valve body being conventional technical means and not described in detail here.

It should be noted that the third control valve 44 between the forming mold 31 and the first tank 41 must be closed, otherwise the vacuum in the first tank 41 is wasted, which increases the production cost.

According to the forming method of the plant fiber tableware forming system, the mode that the upper chamber 23 and the lower chamber 24 are simultaneously supplied with the pulp is adopted, so that the sizing efficiency is improved; the forming efficiency is high by adopting suction filtration forming, the plant fiber can be effectively compacted on the forming die 31 by utilizing negative pressure, and the forming quality is good; and different raw materials can be effectively recovered in the slurry leaching recovery.

The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.

Claims

1. A plant fiber tableware forming system is characterized by comprising

A frame;

a feeding device for supplying and temporarily storing the slurry,

2. A plant fiber tableware molding system according to claim 1 wherein said vapor-liquid separator comprises a first tank and a second tank, said first tank communicating with the bottom of the molding die, said first tank being communicable with an external negative pressure device; the second tank is positioned below the first tank and is communicated with the first tank; a first control valve is arranged between the second tank and the first tank, and a third control valve is arranged between the first tank and the bottom of the forming die.

3. A plant fiber tableware forming system according to claim 2 wherein said first tank is connected to an external negative pressure device through a fourth control valve, said negative pressure device providing negative pressure to the vapor-liquid separator to allow slurry in the forming tank to pass through the forming die into the first tank.

4. The vegetable fiber tableware forming system according to claim 2, wherein said second tank is provided with a pulp outlet at the bottom, said pulp outlet is communicated with an external recycling pipeline, and a second control valve is arranged between said pulp outlet and said external recycling pipeline.

5. The vegetable fiber tableware forming system according to claim 1, wherein the feeding device is provided with an intermediate supply pipeline, a constant flow pipeline, an upper chamber and a lower chamber, the lower chamber is communicated with the forming pool, one side of the upper chamber is communicated with the forming pool in an opening and closing manner, an output end of the intermediate supply pipeline is communicated with the lower chamber through a fifth control valve, and an output end of the constant flow pipeline is communicated with the upper chamber through a sixth control valve.

6. A plant fiber tableware forming system according to claim 5, wherein said lower chamber is disposed below the forming tank, said forming tank and said lower chamber are separated by a partition plate, said partition plate is provided with a plurality of pulp passing holes communicating said lower chamber and said forming tank.

7. The vegetable fiber tableware forming system according to claim 5, wherein the feeding end of the intermediate supply pipeline or the constant flow pipeline is communicated with one end of the anti-settling pipeline, and the other end of the anti-settling pipeline is communicated with the side wall of the bottom of the upper chamber.

8. The plant fiber tableware forming system according to claim 1 or 5, wherein a forming area is arranged in the forming pool, the forming mold is installed in the forming area, a vacuum chamber is arranged in the forming area, an input end of the vacuum chamber is communicated with the bottom of the forming mold, and an input end of the vapor-liquid separator is communicated with an output end of the vacuum chamber.

9. The vegetable fiber tableware forming system according to claim 8, wherein said vacuum chamber is connected to an air blowing pipeline, and said air blowing pipeline is connected to an external air inlet pipeline through a seventh control valve.

10. The system of claim 8, wherein the molding area comprises a table top plate and a water collecting tray, the table top plate is fastened to the water collecting tray to form the vacuum chamber, the table top plate is provided with a plurality of suction holes, and the molding die is mounted on the table top plate and is communicated with the suction holes; the bottom of the water collecting tray is communicated with the input end of the gas-liquid separator.