CN216946208U - Down filling part of down filling machine - Google Patents

Abstract

The utility model relates to a down filling part of a down filling machine, which comprises a down filling pipe, an inner down filling pipe and an outer air return pipe. One end of the down filling inner pipe is connected with the down filling machine, the air return outer pipe is sleeved outside the down filling inner pipe, the air return outer pipe is of a hollow annular structure, and a plurality of air return holes are formed in the side face of the air return outer pipe. The utility model has the beneficial effects that: the structure is simpler and more reliable. The down filling efficiency is improved, and the air return effect is improved, so that the air passage is not easy to block in the air return process.

Description

Down filling part of down filling machine

Technical Field

The utility model belongs to the technical field of down filling, and particularly relates to a down filling part of a down filling machine.

Background

Before a special down filling machine is released, down product manufacturers mostly fill down into a tube in a manual operation mode, and the operation mode has the following defects: firstly, the labor intensity of workers is high and the efficiency is low; secondly, the filling amount has large error, the quality of the down products and the reputation of down product manufacturers are affected, because workers adopt metering devices such as electronic scales or the like to meter in the manual down filling process, and the judgment of the metering value is intuitively and subjectively grasped by the workers, so that the filling amount is easy to fluctuate due to the change of factors such as the experience, the responsibility and/or the mood of the workers; thirdly, the down feather has light specific gravity, so the down feather is easy to fly, which not only influences the working environment, but also causes the waste of the down feather.

Some existing down filling heads are provided with air return devices, but the structural design is unreasonable, and the problem that some down enters an air path to cause air path blockage is easily caused in the air return process.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model adopts the following technical scheme:

the down filling part of the down filling machine comprises

A down filling pipe having

The down filling inner pipe is of a through structure, one end of the down filling inner pipe is connected with the down filling machine,

the air return outer pipe is sleeved outside the down filling inner pipe and is of a hollow annular structure, and a plurality of air return holes are formed in the side face of the air return outer pipe.

In some forms, the air return holes include an outer side air return hole and an end surface air return hole.

In some modes, the tail part of the air return outer pipe is connected with an air return pipe.

In some forms, the outer return air pipe comprises an inner return air pipe wall and an outer return air pipe wall, and one end of the inner return air pipe wall and one end of the outer return air pipe wall are connected through the end wall of the return air pipe; or

The air return outer pipe comprises an air return pipe outer wall and an air return pipe end arranged on the inner side of one end of the air return pipe outer wall.

In some forms, the side return vent is open to an outer wall of the return pipe, and the end return vent is open to an end wall of the return pipe.

In some modes, the tail part of the down filling pipe is connected with a down filling machine connecting pipe.

In some forms, the down filling machine connecting pipe is connected with the tail end of the down filling inner pipe.

In some modes, the tail end face of the air return outer pipe is provided with a tail end wall, and the tail end wall is provided with air holes; the tail end wall is positioned at the periphery of the down filling machine connecting pipe; the side wall of the down filling machine connecting pipe is provided with a down filling air supply pipe, and the down filling air supply pipe is obliquely arranged relative to the front end of the down filling machine connecting pipe.

In some forms, the trailing end wall has a pore inner diameter that is less than the outer side return pores and the end face return pores inner diameter.

In some forms, the air return outer tube is detachably connected to the down filling inner tube.

The utility model has the beneficial effects that:

the structure is simpler and more reliable. The down filling efficiency is improved, and the air return effect is improved, so that the air passage is not easy to block in the air return process.

Drawings

FIG. 1 is a schematic view of an assembly structure according to the present invention;

FIG. 2 is a schematic diagram of two explosive structures according to the present invention;

fig. 3 is a schematic view of a usage state of the present invention.

In the figure:

100 down filling pipes, 110 down filling inner pipes, 120 air return outer pipes, 121 outer side surface air return holes, 122 end surface air return holes, 200 down filling machine connecting pipes, 201 down filling air supply pipes and 300 bag bodies.

Detailed Description

The utility model is further illustrated below:

the down filling part of the down filling machine, as shown in figure 1, comprises

A down filling pipe 100 having

One end of the down filling inner pipe 110 is connected with a down filling machine,

the air return outer tube 120 is sleeved outside the down filling inner tube 110, the air return outer tube 120 is a hollow annular structure, and a plurality of air return holes are formed in the side surface of the air return outer tube 120.

In use, the down filling inner tube 110 is used for air supply and down conveying, and the air return outer tube 120 is used for air return. When the down filling bag is sleeved on the down filling pipe 100 as shown in fig. 3, the down filling inner pipe 110 enters the down, and then the gas enters the air return outer pipe 120 through the air return hole and leaves from the other end of the air return outer pipe 120, so that the high pressure in the down filling bag is avoided.

The air return holes comprise an outer side air return hole 121 and an end face air return hole 122. Set up the increase of two kinds of return air holes the highest degree return air hole quantity, side and terminal surface all set up the return air hole gas inlet process simultaneously and have two kinds of gas flow directions.

The gas entering from the end surface flows along the length direction of the down filling pipe 100, and the gas entering from the side surface flows perpendicular to the length direction, so that the two gases have a junction. The air return suction device has the advantages that some fine fluff and the like sucked by return air can be impacted better, and congestion is avoided.

The tail of the air return outer tube 120 is connected with an air return tube. One is passive air return, air is pumped by an air pump, and the other is active air return by internal and external pressure difference.

As shown in fig. 2, the outer return air pipe 120 includes an inner return air pipe wall and an outer return air pipe wall, and one end of the inner return air pipe wall and one end of the outer return air pipe wall are connected by a return air pipe end wall; or

The air-return outer tube 120 includes an air-return outer wall and an air-return tube end disposed inside one end of the air-return outer wall.

The main difference between the two is whether the air return outer tube 120 has an inner wall, and when there is no inner wall, the outer wall of the down filling inner tube 110 forms the inner wall of the air return outer tube 120 when the down filling inner tube 110 is sleeved. When the inner wall is not arranged, a plurality of annular supporting walls are arranged in the inner part, the plurality of supporting arms are also provided with through holes, and the supporting arms are parallel to the end face.

The side air return hole 121 is formed in the outer wall of the air return pipe, and the end face air return hole 122 is formed in the end wall of the air return pipe.

The tail part of the down filling pipe 100 is connected with a down filling machine connecting pipe 200. The down filling air pipe of the down filling machine can be directly connected through the down filling machine connecting pipe 200, the outer diameter of the down filling machine connecting pipe 200 can be different from the inner diameter of the down filling air pipe, and an air return gap is formed between the down filling machine connecting pipe and the down filling air pipe.

The down filling machine connecting pipe 200 is connected with the tail end of the down filling inner pipe 110. The detachable or fixed connection mode can be adopted.

The tail end face of the air return outer pipe 120 is provided with a tail end wall, and the tail end wall is provided with air holes; the tail end wall is positioned at the periphery of the down filling machine connecting pipe 200; the side wall of the down filling machine connecting pipe 200 is provided with a down filling air supply pipe 201, and the down filling air supply pipe 201 is arranged obliquely relative to the front end of the down filling machine connecting pipe 200.

The inner diameter of the air hole of the tail end wall is smaller than the inner diameters of the outer side air return hole 121 and the end face air return hole 122.

The air return outer pipe 120 is detachably connected with the down filling inner pipe 110. Therefore, different air return pipes can be replaced according to different bag openings.

As shown in fig. 1 and 3, in the using process, the mouth of the bag body 300 is firstly sleeved outside the down filling pipe 100, then air is supplied through the down filling air supply pipe 201, negative pressure can be formed to suck down the down into the bag body, and after the air enters the bag body, part of the air enters the air return outer pipe 120 from the outer side air return hole 121 and the end face air return hole 122 to realize air return, and meanwhile, the pressure in the bag body is reduced.

It will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the general spirit and concept of the utility model. All falling within the scope of protection of the present invention. The protection scheme of the utility model is subject to the appended claims.

Claims (9)

1. The down filling part of the down filling machine is characterized by comprising

A down filling pipe (100) having

A down filling inner pipe (110) which is of a through structure, one end of the down filling inner pipe is connected with a down filling machine,

the air return outer pipe (120) is sleeved outside the down filling inner pipe (110), the air return outer pipe (120) is of a hollow annular structure, and the side surface of the air return outer pipe (120) is provided with a plurality of air return holes; the air return holes comprise outer side air return holes (121) and end face air return holes (122).

2. A down filling part of a down filling machine according to claim 1, wherein the tail part of the air return outer tube (120) is connected with an air return tube.

3. The down filling section of the down filling machine according to claim 1, wherein the outer return air pipe (120) comprises an inner return air pipe wall and an outer return air pipe wall, and one end of the inner return air pipe wall and one end of the outer return air pipe wall are connected through an end wall of the return air pipe; or

The air return outer pipe (120) comprises an air return outer wall and an air return pipe end arranged on the inner side of one end of the air return outer wall.

4. A down filling section of a down filling machine according to claim 3, wherein the side air return holes (121) are opened in the outer wall of the air return pipe, and the end air return holes (122) are opened in the end wall of the air return pipe.

5. The down filling part of the down filling machine according to claim 1, wherein a down filling machine connecting pipe (200) is connected to the tail part of the down filling pipe (100).

6. A down filling section of a down filling machine according to claim 5, wherein the down filling machine connecting pipe (200) is connected with the tail end of the down filling inner pipe (110).

7. The down filling part of the down filling machine according to claim 6, wherein the tail end face of the air return outer pipe (120) is provided with a tail end wall, and the tail end wall is provided with air holes; the tail end wall is positioned at the periphery of the down filling machine connecting pipe (200); the lateral wall of the down filling machine connecting pipe (200) is provided with a down filling air supply pipe (201), and the down filling air supply pipe (201) is obliquely arranged towards the front end relative to the down filling machine connecting pipe (200).

8. A down filling section for a down filling machine according to claim 7, wherein the air hole inside diameter of the tail end wall is smaller than the inside diameters of the outer side return air hole (121) and the end face return air hole (122).

9. The down filling part of the down filling machine according to claim 1, wherein the air return outer pipe (120) is detachably connected with the down filling inner pipe (110).

Images