CN216193680U

CN216193680U - Vacuumizing structure and wet embryo adsorption device

Info

Publication number: CN216193680U
Application number: CN202122642526.8U
Authority: CN
Inventors: 路朋博; 张天翼; 李日华; 姚强; 李创新
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-05
Anticipated expiration: 2031-10-29

Abstract

The utility model provides a vacuumizing structure and a wet embryo adsorption device, wherein the vacuumizing structure comprises: the vacuum pump comprises a shell, a vacuum pump body and a vacuum pump, wherein the shell is provided with a communication cavity and a communication port communicated with the communication cavity, and the communication port is used for being communicated with a cavity of a piece to be vacuumized; the pipe orifice of the exhaust pipe extends into the communicating cavity so as to communicate the exhaust pipe with the communicating cavity; the baffle sets up in the intercommunication intracavity, and the baffle sets up with the mouth of pipe of exhaust tube relatively, and the mouth of pipe interval of baffle and exhaust tube sets up in order forming the circulation clearance to make the gas in the intercommunication intracavity get into in the mouth of pipe of exhaust tube through the circulation clearance. Through the technical scheme provided by the utility model, the technical problem that the vacuumizing structure in the prior art has unbalanced vacuum during vacuumizing can be solved.

Description

Vacuumizing structure and wet embryo adsorption device

Technical Field

The utility model relates to the technical field of paper pulp forming, in particular to a vacuumizing structure and a wet blank adsorption device.

Background

At present, in the production of pulp molding, vacuum suction is mostly adopted in the molding process, pulp is adsorbed on a filter screen of a molding die through the vacuum suction, so that a wet blank is formed, and then the wet blank is subjected to cold pressing and drying to form a product.

However, when the currently common forming vacuum chamber is used for vacuum pumping, the negative pressure at the vacuum inlet is relatively high, so that the vacuum degree of the upper area corresponding to the vacuum inlet pipe is relatively high, and the slurry flows into the area too much, so that the product quantification is inconsistent, and the product qualification rate is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a vacuumizing structure and a wet embryo adsorption device, and aims to solve the technical problem that the vacuumizing structure in the prior art has unbalanced vacuum during vacuumizing.

In order to achieve the above object, according to one aspect of the present invention, there is provided an evacuation structure including: the vacuum pump comprises a shell, a vacuum pump body and a vacuum pump, wherein the shell is provided with a communication cavity and a communication port communicated with the communication cavity, and the communication port is used for being communicated with a cavity of a piece to be vacuumized; the pipe orifice of the exhaust pipe extends into the communicating cavity so as to communicate the exhaust pipe with the communicating cavity; the baffle sets up in the intercommunication intracavity, and the baffle sets up with the mouth of pipe of exhaust tube relatively, and the mouth of pipe interval of baffle and exhaust tube sets up in order forming the circulation clearance to make the gas in the intercommunication intracavity get into in the mouth of pipe of exhaust tube through the circulation clearance.

Further, the projection of the nozzle of the exhaust tube on the plane of the baffle is positioned in the baffle.

Furthermore, the pipe orifice is a circular orifice, and the baffle is of a circular plate structure.

Further, the diameter of the orifice is d₁The diameter of the baffle is d₂，0.5≤d₂/d₁≤5。

Further, the vacuum structure further comprises: the one end of connecting rod is connected with the mouth of pipe of exhaust tube, and the other end and the baffle of connecting rod are connected.

Further, the connecting rod is a plurality of, and a plurality of connecting rods interval sets up at the orificial periphery of exhaust tube.

Further, the casing includes interconnect's bottom plate and curb plate, and the curb plate encircles the periphery setting of bottom plate and encloses into the intercommunication chamber, and the one end that the bottom plate was kept away from to the curb plate encloses into the intercommunication mouth, and the intercommunication mouth is located the top of bottom plate, and the exhaust tube is installed on the bottom plate, and the mouth of pipe protrusion of exhaust tube sets up in the bottom plate.

Further, the area of the flow cross section of the communication chamber gradually decreases in the direction of extension of the communication port to the bottom plate.

Further, the bottom plate is square, and the curb plate includes first connecting plate, second connecting plate, third connecting plate and fourth connecting plate, and first connecting plate, second connecting plate, third connecting plate and fourth connecting plate set up respectively in four sides departments of square.

According to another aspect of the present invention, there is provided a wet embryo adsorption device comprising: a wet blank forming die, wherein the wet blank forming die is provided with a forming die cavity; and the vacuumizing structure is communicated with the molding die cavity and is the vacuumizing structure provided by the method.

By applying the technical scheme of the utility model, the baffle plate is arranged at the position opposite to the pipe orifice of the exhaust pipe, so that the gas in the communicating cavity can only enter the pipe orifice of the exhaust pipe through the flow gap between the baffle plate and the pipe orifice of the exhaust pipe under the blocking action of the baffle plate. Therefore, the condition that the vacuum degree of the upper area corresponding to the pipe orifice is obviously higher than that of other areas can be avoided, and the vacuum balance in the communicating cavity is improved. Correspondingly, the condition that slurry flows into too much in the area of the forming die cavity corresponding to the pipe orifice can be avoided, so that the product quantification uniformity is ensured, the forming balance of the product is improved, and the uniformity and the qualified rate of the product are improved. Through the technical scheme provided by the utility model, the technical problem that the vacuumizing structure in the prior art has unbalanced vacuum during vacuumizing can be solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 shows a schematic structural diagram of an evacuation structure provided according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a housing; 11. a base plate; 12. a side plate; 121. a first connecting plate; 122. a second connecting plate; 123. a third connecting plate; 124. a fourth connecting plate; 20. an air exhaust pipe; 21. a pipe orifice; 30. a baffle plate; 40. a connecting rod.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1, the first embodiment of the present invention provides a vacuum structure, which includes a housing 10, an exhaust tube 20 and a baffle 30, wherein the housing 10 has a communication cavity and a communication port communicating with the communication cavity, and the communication port is used for communicating with a chamber of a member to be vacuumed. The nozzle 21 of the exhaust tube 20 extends into the communicating cavity so that the exhaust tube 20 is communicated with the communicating cavity. The baffle 30 is arranged in the communicating cavity, the baffle 30 is arranged opposite to the pipe orifice 21 of the exhaust pipe 20, and the baffle 30 and the pipe orifice 21 of the exhaust pipe 20 are arranged at intervals to form a flowing gap so that gas in the communicating cavity enters the pipe orifice 21 of the exhaust pipe 20 through the flowing gap. Specifically, the to-be-evacuated member herein may refer to a wet blank molding die, and the chamber of the to-be-evacuated member may refer to a molding die cavity.

By adopting the vacuum pumping structure provided by the embodiment, because the baffle 30 is arranged at the position opposite to the nozzle 21 of the exhaust tube 20, the gas in the communicating cavity can only enter the nozzle 21 of the exhaust tube 20 through the flowing gap between the baffle 30 and the nozzle 21 of the exhaust tube 20 by the blocking effect of the baffle 30. Therefore, the condition that the vacuum degree of the upper area corresponding to the pipe orifice 21 is obviously higher than that of other areas can be avoided, and the vacuum balance in the communicating cavity is improved. Correspondingly, the condition that slurry flows into too much in the area of the forming die cavity corresponding to the pipe orifice 21 can be avoided, so that the product quantification uniformity is ensured, the forming balance of the product is improved, and the uniformity and the qualified rate of the product are improved.

Specifically, the projection of the pipe orifice 21 of the exhaust pipe 20 in the embodiment on the plane where the baffle 30 is located in the baffle 30, so that the baffle 30 better shields the pipe orifice 21 of the exhaust pipe 20, and further, the condition that the vacuum degree is too high in the upper area corresponding to the pipe orifice 21 of the exhaust pipe 20 is better avoided, and therefore, the vacuum balance in the communicating cavity is effectively improved.

In this embodiment, the nozzle 21 is a circular nozzle, and the baffle 30 is a circular plate structure. By adopting the structure, the structure is simple, the effect is reliable, and the technical effect of improving the vacuum balance in the communication cavity can be effectively achieved.

Preferably, the diameter of the orifice 21 is d₁The diameter of the baffle 30 is d₂，0.5≤d₂/d₁Less than or equal to 5. By adopting the structure, the baffle 30 can effectively shield the pipe orifice 21 of the exhaust pipe 20, so that the vacuum balance in the communicating cavity can be improved better.

In this embodiment, the vacuum structure further includes a connecting rod 40, one end of the connecting rod 40 is connected to the nozzle 21 of the exhaust tube 20, and the other end of the connecting rod 40 is connected to the baffle 30. By adopting the structure, the structure is simple, the connection is reliable, and the stability of the baffle 30 is improved.

Specifically, the connecting rod 40 in the present embodiment is plural, and the plural connecting rods 40 are arranged at intervals at the periphery of the nozzle 21 of the exhaust pipe 20. By adopting the structure, the arrangement stability of the baffle 30 can be further improved, so that the connection reliability can be further ensured.

In this embodiment, the casing 10 includes a bottom plate 11 and a side plate 12 connected to each other, the side plate 12 is disposed around a periphery of the bottom plate 11 and encloses a communication cavity, one end of the side plate 12 away from the bottom plate 11 encloses a communication opening, the communication opening is located above the bottom plate 11, the exhaust tube 20 is mounted on the bottom plate 11, and a nozzle 21 of the exhaust tube 20 protrudes from the bottom plate 11. By adopting the structure, the structure space layout is optimized, and the gas in the communicating cavity can be smoothly pumped away through the pumping pipe 20.

Specifically, the area of the flow cross section of the communication chamber gradually decreases in the extending direction of the communication port to the bottom plate 11. By adopting the structure, the volume of the communicating cavity can be reduced conveniently, the vacuum use power is reduced, and the production energy consumption is further reduced.

Preferably, the bottom plate 11 in this embodiment is a square plate, the side plate 12 includes a first connecting plate 121, a second connecting plate 122, a third connecting plate 123 and a fourth connecting plate 124, and the first connecting plate 121, the second connecting plate 122, the third connecting plate 123 and the fourth connecting plate 124 are respectively disposed at four sides of the square plate. By adopting the structure, the structure is simple, and the production, the manufacture and the installation are convenient.

The original regular pulp molding vacuum cavity is modified into a funnel shape, and the baffle 30 is added in front of the pipe orifice 21 of the exhaust pipe 20, so that the uniformity of negative pressure in the cavity is ensured, and the quantitative stability of products is improved. Not only reduces the vacuum energy consumption in the production process, but also improves the product uniformity.

The product is mainly characterized in that the structure of the vacuum funnel of the existing paper pulp molding machine is changed, the regular vacuum cavity air chamber is modified into a funnel form with a large upper part and a small lower part, so that the vacuum consumption during product molding is reduced, the vacuum energy consumption is reduced, and the baffle 30 is additionally arranged at the inlet of a vacuum pipeline, so that the balance of negative pressure in the cavity air chamber of the molding funnel is ensured. The problem of every chamber product shaping mouth top product ration is high is solved, guaranteed product ration homogeneous, improved the product percent of pass.

When the vacuum pipeline valve is opened, the gas in the cavity is pumped away to form a negative pressure environment. The baffle 30 is arranged, so that the pressure difference of a negative pressure gas outlet cannot be suddenly changed, the gas above the inlet cannot directly flow away, the outflow speed of the gas above the inlet is reduced, and the balance of negative pressure in the air cavity is ensured, so that each mould can pass through the same slurry, and the quantitative stability of products is improved.

The second embodiment of the utility model provides a wet embryo adsorption device which comprises a wet embryo forming die and a vacuumizing structure, wherein the wet embryo forming die is provided with a forming die cavity. The vacuumizing structure is communicated with the molding die cavity and is the vacuumizing structure provided by the method. By adopting the structure, the paper pulp slurry in the forming die cavity can be conveniently adsorbed on the filter screen through the vacuum-pumping structure, the adhesion balance of the slurry is improved, and the product percent of pass is improved.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: the utility model changes the original regular vacuum cavity into a funnel type with a large upper part and a small lower part by modifying the negative pressure vacuum cavity of the pulp molding machine, and adds a baffle in front of the vacuum inlet, thereby ensuring the uniformity of the product. The volume of the vacuum funnel cavity is reduced, the vacuum use power is reduced, and the production energy consumption is reduced; and the vacuum degree in the cavity is more uniform, so that the uniformity of the product is ensured. Compared with a unit without the method, the product percent of pass is improved by about 2 percent, and the vacuum energy consumption of unit product is reduced by about 5 percent.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An evacuation structure, comprising:

the vacuum pump comprises a shell (10), wherein the shell (10) is provided with a communication cavity and a communication port communicated with the communication cavity, and the communication port is used for being communicated with a cavity of a piece to be vacuumized;

the pipe orifice (21) of the air exhaust pipe (20) extends into the communication cavity so as to enable the air exhaust pipe (20) to be communicated with the communication cavity;

the baffle (30) is arranged in the communicating cavity, the baffle (30) is arranged opposite to the pipe orifice (21) of the air exhaust pipe (20), and the baffle (30) and the pipe orifice (21) of the air exhaust pipe (20) are arranged at intervals to form a circulation gap, so that gas in the communicating cavity enters the pipe orifice (21) of the air exhaust pipe (20) through the circulation gap.

2. An evacuation structure according to claim 1, wherein the projection of the nozzle (21) of the suction pipe (20) on the plane of the baffle plate (30) is located inside the baffle plate (30).

3. The evacuation structure according to claim 1, wherein the nozzle (21) is a circular nozzle and the baffle (30) is a circular plate structure.

4. An evacuation structure according to claim 3, wherein the diameter of the nozzle (21) is d₁The diameter of the baffle plate (30) is d₂，0.5≤d₂/d₁≤5。

5. The evacuation structure of claim 1, further comprising:

one end of the connecting rod (40) is connected with the pipe orifice (21) of the exhaust pipe (20), and the other end of the connecting rod (40) is connected with the baffle (30).

6. The vacuum structure according to claim 5, wherein the connecting rod (40) is plural, and the plural connecting rods (40) are arranged at intervals at the periphery of the nozzle (21) of the suction pipe (20).

7. The vacuum pumping structure according to any one of claims 1 to 6, characterized in that the casing (10) comprises a bottom plate (11) and a side plate (12) which are connected with each other, the side plate (12) is arranged around the periphery of the bottom plate (11) and encloses the communication cavity, one end of the side plate (12) far away from the bottom plate (11) encloses the communication opening, the communication opening is positioned above the bottom plate (11), the pumping pipe (20) is arranged on the bottom plate (11), and a pipe opening (21) of the pumping pipe (20) is arranged to protrude from the bottom plate (11).

8. An evacuation structure according to claim 7, wherein the area of the flow cross-section of the communication chamber is gradually reduced in the direction of extension of the communication opening to the bottom plate (11).

9. The vacuum structure according to claim 8, wherein the bottom plate (11) is a square plate, and the side plate (12) includes a first connecting plate (121), a second connecting plate (122), a third connecting plate (123), and a fourth connecting plate (124), and the first connecting plate (121), the second connecting plate (122), the third connecting plate (123), and the fourth connecting plate (124) are respectively provided at four side edges of the square plate.

10. A wet embryo adsorption device, comprising:

a wet embryo forming die, wherein the wet embryo forming die is provided with a forming die cavity;

an evacuation structure in communication with the molding cavity, the evacuation structure being as claimed in any one of claims 1 to 9.