CN218779248U

CN218779248U - Injection molding mechanism of paper pulp molding equipment

Info

Publication number: CN218779248U
Application number: CN202222851113.5U
Authority: CN
Inventors: 张又文
Original assignee: Guangdong Huanyuan New Material Technology Co ltd
Current assignee: Guangdong Huanyuan New Material Technology Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-03-31
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a paper pulp moulding equipment injection moulding mechanism, including upper die assembly and lower die assembly, upper die assembly top be equipped with injection machine and injection machine power supply, lower die assembly include ladle body and base, the base setting in ladle body below, the base on be equipped with forming die, base and forming die between be equipped with the vacuum cavity, forming die top from last to having set gradually second layer material, first layer material and metal mesh mould down, metal mesh mould edge be equipped with net mould fixed smelting tool; and a base drain hole is arranged below the base and passes through a three-way joint. Compared with the prior art, the utility model the advantage lie in: the automatic mold unloading device has the advantages that the automatic mold unloading is realized by adopting the amount-controlled injection paper pulp and utilizing the self gravity and the rotation inertia effect of a product, the conveying device is arranged, the structure of the device is simplified, the energy is saved, the device is more convenient, and the produced product is more accurate.

Description

Injection molding mechanism of paper pulp molding equipment

Technical Field

The utility model relates to paper pulp molding equipment field specifically indicates a paper pulp molding equipment injection moulding mechanism.

Background

Injection molding, also known as extrusion molding, is a molding process that utilizes the principle of an injection syringe. By using mechanical power extrusion forming, larger forming pressure can be generated. The working principle is as follows: the paper pulp is injected into a quantitative injector, the upper die extrudes the pulp filled in the paper pulp groove under the action of mechanical force, the upper die and the lower die extrude the paper pulp to be formed, water in the pulp can be discharged through a bottom die hole in the net die, and then the fiber can be formed in a cavity. After the forming section is finished, the upper die and the lower die are in vacuum in a closed state, and the upper die and the lower die are required to be provided with air holes capable of being vacuumized or compressed air is introduced, for example, the upper die is connected with the vacuum lower die to receive compressed air, the wet paper die blank is subjected to the vacuum action of the upper die and the demoulding action of compressed air of the lower die, so that the wet paper die blank can be transferred to the upper die, and finally the wet paper die blank is separated from the die and is conveyed to be dried.

The pulp moulding is a stereo paper making technology, which uses waste paper as raw material and moulds a certain shape of paper product by a special mould on a moulding machine. It has four major advantages: the raw materials are waste paper, including paperboard, waste paper box paper, waste white edge paper and the like, and the sources are wide; the manufacturing process is completed by the working procedures of pulping, adsorption molding, drying and shaping and the like, and is harmless to the environment; can be recycled and reused; the volume is smaller than that of the foamed plastic, and the foamed plastic can be overlapped and is convenient for transportation. The paper pulp molding is used as a lunch box and tableware, and is also used for industrial buffer packaging, the development is very rapid at present, the existing paper pulp molding machine has low working efficiency, large energy consumption and complex operation, the waste of paper pulp is easy to cause when products are produced, simultaneously the quality of each paper pulp molding is uneven, and the injection molding equipment is not generally used for the paper pulp molding.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem, and provides an injection molding mechanism of paper pulp molding equipment.

In order to solve the technical problem, the utility model provides a technical scheme does: an injection molding mechanism of paper pulp molding equipment comprises an upper die assembly and a lower die assembly, wherein an injection machine upper die and an injection machine power source are arranged above the upper die assembly, the lower die assembly comprises a barrel body and a base, the base is arranged below the barrel body, a molding die is arranged on the base, a vacuum cavity is arranged between the base and the molding die, a second layer material, a first layer material and a metal mesh die are sequentially arranged above the molding die from top to bottom, and a mesh die fixing jig is arranged at the edge of the metal mesh die;

and a base drain hole is formed below the base, the base drain hole passes through a three-way joint, the other two interfaces of the three-way joint are connected with a leather hose joint and a check valve, and the other end of the check valve is connected with a leather hose joint II.

Furthermore, the upper die assembly is arranged on the upper die supporting seat, and an upper die guide pillar is arranged between the upper die assembly and the upper die supporting seat.

Further, metal mesh mould and the fixed smelting tool of mesh mould between be equipped with the airtight rubber ring of mesh mould, the fixed smelting tool of mesh mould fix through mesh mould smelting tool set screw.

Furthermore, a plurality of drain holes are formed in the forming die.

Furthermore, a hexagonal double-end thread and an outer hexagonal double-end thread are respectively arranged between the three-way joint and the base drain hole and between the three-way joint and the check valve.

Further, the ladle body pass through clamp quick-operation joint and connect the base, and be equipped with the airtight rubber ring of base between ladle body and the base.

Further, forming die and base between be equipped with mould fixed screw and the fixed airtight rubber ring of mould, the fixed smelting tool of net mould and forming die between be equipped with the airtight rubber ring of net mould clamp plate.

Compared with the prior art, the utility model the advantage lie in:

the automatic mold unloading device has the advantages that the amount-controlled injection paper pulp is adopted, the automatic mold unloading is realized by utilizing the self gravity and the rotation inertia effect of a product, the conveying device is arranged, the structure of the device is simplified, the energy is saved, the convenience is realized, and the produced product is more accurate.

Drawings

Fig. 1 is a schematic structural diagram of an injection molding mechanism of a pulp molding apparatus of the present invention.

Fig. 2 is a schematic structural diagram of an injection molding mechanism of a pulp molding apparatus of the present invention.

Fig. 3 is an enlarged view of fig. 2 a according to the present invention.

Fig. 4 is an enlarged view of fig. 2B according to the present invention.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; the specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

An injection molding mechanism of pulp molding equipment comprises an upper die component and a lower die component, wherein an injection machine upper die 40 and an injection machine power source 41 are arranged above the upper die component,

the lower die assembly comprises a barrel body 9 and a base 10, the base 10 is arranged below the barrel body 9, a forming die 29 is arranged on the base 10, a vacuum cavity 33 is arranged between the base 10 and the forming die 29, a second layer material 30, a first layer material 26 and a metal mesh die 27 are sequentially arranged above the forming die 29 from top to bottom, and a mesh die fixing jig 25 is arranged at the edge of the metal mesh die 27; the upper die assembly is arranged on the upper die supporting seat 43, and an upper die guide post 42 is arranged between the upper die assembly and the upper die supporting seat 43, so that the upper die assembly can move up and down more stably;

a base drain hole 35 is arranged below the base 9, the base drain hole 35 is connected with a three-way joint 16, the other two interfaces of the three-way joint 16 are connected with a leather hose joint 17 and a check valve 19, the other end of the check valve 19 is connected with a leather hose joint II 20, and a hexagonal double-end screw 15 and an outer hexagonal double-end screw 18 are respectively arranged between the three-way joint 16 and the base drain hole 35 and between the three-way joint 16 and the check valve 19, so that the disassembly, assembly and maintenance are convenient;

metal mesh mould 27 and the fixed smelting tool 25 of mesh mould between be equipped with the airtight rubber ring 28 of mesh mould, the fixed smelting tool 25 of mesh mould fix through mesh mould smelting tool set screw 34.

The forming mold 29 is provided with a plurality of water discharge holes 36.

Barrel body 9 connect base 10 through clamp quick-operation joint 5, and be equipped with the airtight rubber ring 13 of base between barrel body 9 and the base 10, forming die 29 and base 10 between be equipped with mould set screw 11 and the fixed airtight rubber ring 14 of mould, the fixed smelting tool 25 of net mould and forming die 29 between be equipped with the airtight rubber ring 12 of net mould clamp plate, connect stably, and the dismouting is changed more conveniently.

The utility model discloses a theory of operation:

paper pulp injection molding: an upper die device can be manufactured to compress paper pulp fibers by using gas-oil pressure or a servo motor and the like, and a power source 41 of an injection machine is matched with an upper die guide post 42 to guide an upper die assembly to lift by using a shaft and a shaft sleeve; the pulp fiber material is injected into the cavity according to the amount of the product, the base closes the upper mold 40 of the injection machine through the transmission mode of the power source 41 of the injection machine, at this time, high pressure can be generated in the mold cavity and the water in the material is discharged out of the mold cavity, the material stays on the mold surface through the metal net mold 27, the first layer of material 26, then the wet blank product, the metal net mold 27 and the first layer of material 26 can be taken out through the clamp quick connector 5 detaching the fixing device, and the semi-finished product can be dried and dehydrated through the hot pressing mode at the same time, and the process is called as an injection molding method.

Mold replaceability: because of the mould of the removable different grade type of difference of product type, can replace the mould subassembly, mould 40 on forming die 29, the fixed smelting tool 25 of net mould, the injection machine promptly, the mould dismouting location is easy, respectively has clamp quick-operation joint 5 about ladle body 9, but this structure quick replacement mould takes out the product promptly fast.

The vacuum cavity and the vacuum cavity 33 are connected with the tee joint 16 to a vacuum pipe, and the drainage device for pulp molding is injected upwards and is used for draining water in the vacuum cavity 33 in an auxiliary mode. Because the upper injection has the function of generating high pressure under the action of vacuum simultaneously with the lower vacuum, the vacuum filter bottle is prevented from being broken, the non-return valve 19 of the protective device can be installed, and the protective device can prevent the parts 23 from being damaged under the action of positive and negative pressure.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, it should be understood that those skilled in the art should also understand the scope of the present invention without inventively designing the similar structure and embodiments of the present invention without departing from the spirit of the present invention.

Claims

1. The utility model provides a pulp molding equipment injection moulding mechanism, includes mould assembly and lower mould assembly, its characterized in that: the mould comprises an upper mould component and a lower mould component, wherein an injection machine upper mould (40) and an injection machine power source (41) are arranged above the upper mould component, the lower mould component comprises a barrel body (9) and a base (10), the base (10) is arranged below the barrel body (9), a forming mould (29) is arranged on the base (10), a vacuum cavity (33) is arranged between the base (10) and the forming mould (29), a second layer material (30), a first layer material (26) and a metal mesh mould (27) are sequentially arranged above the forming mould (29) from top to bottom, and a mesh mould fixing jig (25) is arranged at the edge of the metal mesh mould (27);

a base drain hole (35) is arranged below the base (10), the base drain hole (35) is connected with a three-way joint (16), the other two interfaces of the three-way joint (16) are connected with a leather hose joint (17) and a check valve (19), and the other end of the check valve (19) is connected with a leather hose joint II (20).

2. The injection molding mechanism of a pulp molding apparatus according to claim 1, characterized in that: the upper die assembly is arranged on the upper die supporting seat (43), and an upper die guide pillar (42) is arranged between the upper die assembly and the upper die supporting seat (43).

3. The pulp molding apparatus injection molding mechanism of claim 1, wherein: metal mesh mould (27) and the fixed smelting tool of mesh mould (25) between be equipped with the airtight rubber ring of mesh mould (28), the fixed smelting tool of mesh mould (25) fix through mesh mould smelting tool set screw (34).

4. The pulp molding apparatus injection molding mechanism of claim 1, wherein: the forming die (29) is provided with a plurality of drain holes (36).

5. The injection molding mechanism of a pulp molding apparatus according to claim 1, characterized in that: and a hexagonal double-end thread (15) and an outer hexagonal double-end thread (18) are respectively arranged between the three-way joint (16) and the base drain hole (35) and between the three-way joint (16) and the check valve (19).

6. The injection molding mechanism of a pulp molding apparatus according to claim 1, characterized in that: the barrel body (9) is connected with the base (10) through the hoop quick joint (5), and a base airtight rubber ring (13) is arranged between the barrel body (9) and the base (10).

7. The pulp molding apparatus injection molding mechanism of claim 1, wherein: forming die (29) and base (10) between be equipped with mould fixed screw (11) and the fixed airtight rubber ring of mould (14), fixed smelting tool of net mould (25) and forming die (29) between be equipped with the airtight rubber ring of net mould clamp plate (12).