Cement packaging device with dust falling function

Abstract

The invention discloses a cement packaging device with a dust falling function, and relates to the technical field of cement packaging. The dust falling efficiency is improved; comprising a packaging box, an access cover plate is fixed to the top of the packaging box, a supporting piece is fixed between the inner walls of the two sides of the packaging box, a feeding pipe is installed on the supporting piece, a feeding plate is embedded into the inner wall of the circumference of the feeding pipe, material holes are formed in the surface of the feeding plate, and a support is welded to the outer wall of the feeding pipe; a first T-shaped rod is movably connected to a through hole formed in the surface of the support, a first spring is clamped between the inner wall of one side of the first T-shaped rod and the outer wall of the support, and a semi-conical shell is welded to one end of the first T-shaped rod. According to the feeding device, the hoop plates are arranged so that the two semi-conical shells can be tightened in the transverse moving process of the feeding device, the tightened semi-conical shells can be used for clamping and fixing a packaging bag and a feeding pipe, and meanwhile dust can be prevented from overflowing through a gap between the packaging bag and the feeding pipe.

Description

Technical Field

[0001] The invention relates to the technical field of cement packaging, and in particular to a cement packaging device with a dust reduction function. Background Art

[0002] In the prior art, cement, as an important building raw material, needs to be packaged after production. During packaging, the packaging bag is inserted into the pipeline and the cement is filled through the pipeline. However, since cement is easy to generate dust during packaging, the powdered cement is suspended in the air and inhaled by people, which will cause great harm to the health of people. Therefore, it is necessary to design a cement packaging device with dust reduction function to perform efficient dust reduction during cement packaging.

[0003] After searching, the Chinese patent application number 202022812358.8 discloses a dust reduction device for a cement packaging machine, which includes a hopper with a feed port. The hopper is arranged on the outer surface and is located on the side of the ash outlet pipe close to the ground. The feed port of the hopper faces the pipe mouth of the ash outlet pipe, and a negative pressure mechanism for extracting dust is arranged in the hopper.

[0004] The dust reduction device of a cement packaging machine in the above patent has the following shortcomings: when cement is discharged from the ash outlet pipe during packaging, the cement will be suspended in the air, but the negative pressure mechanism can only absorb the cement in the aggregate hopper. The cement suspended in the air has a large range of movement, so the negative pressure mechanism cannot efficiently absorb it. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a cement packaging device with dust reduction function.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A cement packaging device with a dust reduction function comprises a packaging box, a maintenance cover is fixed on the top of the packaging box, a support is fixed between the inner walls on both sides of the packaging box, and a feeding pipe is installed on the support, a feeding plate is embedded in the circumferential inner wall of the feeding pipe, and a material hole is provided on the surface of the feeding plate, a bracket is welded to the outer wall of the feeding pipe, and a T-shaped rod is movably connected to the through hole provided on the surface of the bracket, and a spring is clamped between the inner wall of one side of the T-shaped rod and the outer wall of the bracket, and a semi-conical shell is welded at one end of the T-shaped rod, and a baffle used in conjunction with the feeding plate is fixed to the inner wall of the semi-conical shell, a square plate is welded to the outer wall of the baffle, and a spring is fixed to the outer wall of one side of the square plate.

[0008] Preferably: the support member includes a support plate, a lifting plate and a reciprocating rod, the support plate is welded between the inner walls on both sides of the packaging box, and the reciprocating rod is movably connected to the inner wall of the through hole opened on the surface of the support plate, and the lifting plate is fixed to the bottom of the reciprocating rod, an embedded plate is welded to the bottom of the lifting plate, and the feeding tube is fixed to the inner wall of the through hole opened on the surface of the embedded plate by embedding.

[0009] Further: a supporting plate is fixed to the outer wall of the top of the support plate, and a guide block is movably connected to the inner wall of the supporting plate, and the outer wall of the guide block is movably connected to the guide plate, and the guide plate is pulled by a traction part.

[0010] Further: a mounting shell is fixed at one end of the guide plate, a vertical plate is fixed to the top outer wall of the lifting plate, and the vertical plate and the mounting shell are movably connected, a through hole opened at one end of the mounting shell is movably connected to two T-shaped rods, and two springs are clamped between the inner wall of one side of the T-shaped rod and the inner wall of one side of the mounting shell, a hoop plate is fixed at one end of the T-shaped rod, and an electromagnet is fixed to the outer wall of one side of the hoop plate.

[0011] As a preferred solution of the present invention: the traction part includes a winding drum and a side plate, the side plate is fixed to the inner wall of one side of the packaging box, and the winding drum is movably connected between the two side plates, a steel wire rope is wound on the circumferential outer wall of the winding drum, and the steel wire rope and the guide plate are fixed by a connecting plate.

[0012] As a further solution of the present invention: a winding motor is fixed to the outer wall of one side of the side plate, and the output end of the winding motor is connected to one end of the winding drum through a coupling.

[0013] As a further solution of the present invention: a pulley block is installed on the inner wall of one side of the packaging box, and the wire rope is guided by the pulley block, and a gate is fixed to one end of the wire rope away from the winding drum.

[0014] On the basis of the above-mentioned scheme: a containing plate is fixed to the inner wall of the bottom of the packaging box, and a lever is movably connected between the two containing plates through a rotating shaft, and an intermediate plate is welded to the bottom of the embedded plate, and a swing plate is movably connected to the inner wall of the intermediate plate, and the swing plate and the lever are movably connected, and a flapping plate is fixed to one end of the lever.

[0015] On the basis of the above scheme: a negative pressure pump is fixed to the inner wall of the bottom of the packaging box, and the output end of the negative pressure pump is connected to the bottom of the beating plate through a pipeline, and the input end of the negative pressure pump is connected to a dust bag through a pipeline.

[0016] On the basis of the above scheme: a filling tube is embedded in the through hole at one end of the packaging box, a solenoid valve is fixed at one end of the filling tube, and the solenoid valve and one end of the feeding tube are connected by a corrugated hose.

[0017] The beneficial effects of the present invention are:

[0018] 1. A cement packaging device with a dust reduction function, which is equipped with a hoop plate to tighten the two semi-conical shells during the lateral movement. The tightened semi-conical shells are used to clamp and fix the packaging bag and the feeding pipe, and at the same time, dust can be prevented from overflowing through the gap between the packaging bag and the feeding pipe.

[0019] 2. A cement packaging device with dust reduction function. During the tightening of the semi-conical shell, the shielding plate can be driven to move along the feeding plate, so that the cement is discharged through the material holes on the feeding plate. At the same time, the semi-conical shell drives the spring piece to produce elastic deformation while moving. During the deformation process, the spring piece stirs the cement in the feeding pipe to prevent the cement from clogging the feeding pipe.

[0020] 3. A cement packaging device with dust reduction function, which is equipped with a steel wire rope so that during the winding process it can drive the gate plate to move to block the openings on the side wall of the packaging box to prevent dust from spilling out, and at the same time indirectly drive the hoop plate to tighten the two semi-conical shells, thereby improving the packaging efficiency and providing multiple dust isolation protections.

[0021] 4. A cement packaging device with dust reduction function, which can drive the packaging bag to shake up and down and drive the flapping plate to flap the bottom of the packaging bag back and forth by setting the guide plate in a wave shape, so that the packaging bag can accelerate the shaking-off rate of the dust attached to its surface under the dual effects of shaking and flapping.

[0022] 5. A cement packaging device with dust reduction function, which is equipped with a beating plate so that it can not only beat the packaging bags, but also support the packaging bags after bagging, and can also use a negative pressure pump to absorb the dust suspended in the air after beating. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a cement packaging device with dust reduction function proposed by the present invention;

[0024] Figure 2 It is a schematic diagram of the internal cross-sectional structure of a cement packaging device with dust reduction function proposed by the present invention;

[0025] Figure 3 It is a schematic diagram of a side cross-sectional structure of a cement packaging device with dust reduction function proposed by the present invention;

[0026] Figure 4 It is a schematic diagram of the overall structure of a dust collecting part of a cement packaging device with dust reduction function proposed by the present invention;

[0027] Figure 5It is a schematic diagram of the overall structure of the bagging part of a cement packaging device with dust reduction function proposed by the present invention;

[0028] Figure 6 It is a schematic diagram of the explosion structure of the bagging part of a cement packaging device with dust reduction function proposed by the present invention;

[0029] Figure 7 It is a schematic diagram of the vibration structure of a cement packaging device with dust reduction function proposed by the present invention.

[0030] In the figure: packing box 1; filling tube 2; inspection cover 3; winding drum 4; side plate 5; winding motor 6; wire rope 7; connecting plate 8; support plate 9; mounting shell 10; hoop plate 11; pulley block 12; lifting plate 13; vertical plate 14; corrugated hose 15; solenoid valve 16; negative pressure pump 17; gate plate 18; swing plate 19; middle plate 20; containing plate 21; dust bag 22; flapping plate 23; lever 24; spring 1 25; semi-conical shell 26; shielding plate 27; feeding plate 28; feeding tube 29; bracket 30; T-bar 1 31; spring piece 32; embedded plate 33; square plate 34; T-bar 2 35; spring 2 36; guide plate 37; guide block 38; supporting plate 39; reciprocating rod 40. DETAILED DESCRIPTION

[0031] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] Embodiment 1:

[0034] A cement packaging device with dust reduction function, such as Figures 1 to 7 As shown, it includes a packing box 1, a maintenance cover 3 is fixed to the top of the packing box 1 by bolts, a support is fixed between the inner walls on both sides of the packing box 1, and a feeding tube 29 is installed on the support, a feeding plate 28 is embedded in the circumferential inner wall of the feeding tube 29, and a material hole is opened on the surface of the feeding plate 28, a bracket 30 is welded to the outer wall of the feeding tube 29, and a T-shaped rod 31 is slidably connected to the through hole opened on the surface of the bracket 30, and a spring 25 is clamped between the inner wall of one side of the T-shaped rod 31 and the outer wall of the bracket 30, and a semi-conical shell 26 is welded to one end of the T-shaped rod 31, and a shielding plate 27 used in conjunction with the feeding plate 28 is fixed to the inner wall of the semi-conical shell 26 by screws, a square plate 34 is welded to the outer wall of the shielding plate 27, and a spring 32 is fixed to the outer wall of one side of the square plate 34 by screws;

[0035] In the initial stage, the shielding plate 27 blocks the material holes on the feeding plate 28. When the cement needs to be packaged, the opening of the packaging bag is sleeved on one end of the feeding tube 29, driving the two semi-conical shells 26 to move synchronously in opposite directions, so that the distance between the two semi-conical shells 26 is gradually reduced. During this process, the shielding plate 27 is driven by the semi-conical shells 26 to move along the surface of the feeding plate 28, so that the shielding plate 27 and the material holes on the feeding plate 28 are misaligned with each other. When the semi-conical shells 26 move to the outer wall of the packaging bag, the packaging bag is clamped and fixed by the two groups of semi-conical shells 26, and the packaging bag is tightly wrapped on the outer wall of the feeding tube 29, so as to prevent the cement from overflowing from the gap between the feeding tube 29 and the packaging bag when bagging;

[0036] Since the holes on the shielding plate 27 and the feeding plate 28 are misaligned, the cement in the feeding tube 29 is introduced into the packaging bag through the hole for bagging. After bagging, the semi-conical shell 26 releases the clamping and fixing of the packaging bag by the rebound force of the spring 1 25. At the same time, the shielding plate 27 can be quickly reset to re-block the hole on the feeding plate 28, thereby preventing the residual cement in the feeding tube 29 from overflowing and generating dust.

[0037] The spring piece 32 is provided to deform after receiving the thrust of the semi-conical shell 26 . The spring piece 32 stirs the cement in the feeding pipe 29 during the deformation process, thereby preventing the cement from clogging the feeding pipe 29 and affecting the normal bagging of the cement.

[0038] The support member includes a support plate 9, a lifting plate 13 and a reciprocating rod 40, wherein the support plate 9 is welded between the inner walls on both sides of the packaging box 1, and the reciprocating rod 40 is slidably connected to the inner wall of the through hole opened on the surface of the support plate 9, and the lifting plate 13 is fixed to the bottom of the reciprocating rod 40 by bolts, and an embedded plate 33 is welded to the bottom of the lifting plate 13, and the feeding tube 29 is fixed to the inner wall of the through hole opened on the surface of the embedded plate 33 by embedding;

[0039] The insert plate 33 can be used to support the feeding pipe 29, thereby ensuring that the cement in the feeding pipe 29 is bagged into the packaging bag.

[0040] A filling tube 2 is embedded in the through hole at one end of the packaging box 1, and a solenoid valve 16 is fixed to one end of the filling tube 2 by bolts, and the solenoid valve 16 and one end of the feeding tube 29 are connected by a corrugated hose 15;

[0041] When bagging, the solenoid valve 16 is opened to allow the cement in the filling tube 2 to be injected into the packaging bag along the corrugated hose 15 and the feeding tube 29.

[0042] A support plate 39 is fixed to the outer wall of the top of the support plate 9 by screws, and a guide block 38 is rotatably connected to the inner wall of the support plate 39, and a guide plate 37 is movably connected to the outer wall of the guide block 38, and the guide plate 37 is pulled by a traction part, and one end of the guide plate 37 is fixed to the mounting shell 10 by screws, and a vertical plate 14 is fixed to the outer wall of the top of the lifting plate 13 by screws, and the vertical plate 14 and the mounting shell 10 are slidably connected, and a T-shaped rod 35 is slidably connected to the through hole opened at one end of the mounting shell 10, and a spring 36 is clamped between the inner wall of one side of the T-shaped rod 35 and the inner wall of one side of the mounting shell 10, and a hoop plate 11 is fixed to one end of the T-shaped rod 35 by screws, and an electromagnet is fixed to the outer wall of one side of the hoop plate 11 by screws;

[0043] The guide plate 37 can be pulled by the traction part. The guide plate 37 indirectly drives the hoop plate 11 to move during the lateral movement of the traction. When the hoop plate 11 moves to the arc surface of the two semi-conical shells 26, the semi-conical shells 26 are squeezed. After being squeezed, the two semi-conical shells 26 are gradually tightened to clamp and fix the packaging bag. In this embodiment, the elastic coefficient of the second spring 36 is greater than the elastic coefficient of the first spring 25, so that the deformation degree of the second spring 36 during the movement of the hoop plate 11 is less than the deformation degree of the first spring 25. When the hoop plate 11 tightens the semi-conical shell 26, the traction part continues to drive the guide plate 37 to move, so that the second spring 36 begins to produce a large degree of deformation. Since the guide plate 37 is a wavy line structure, the guide plate 37 drives the mounting shell 10 to make a reciprocating up and down motion during the movement of the guide block 38, so that the packaging bag shakes up and down during the synchronous movement, so that a small amount of cement attached to the outer surface of the packaging bag is accelerated to separate during the shaking process.

[0044] By installing an electromagnet on the hoop plate 11, when the hoop plate 11 moves to tighten the semi-conical shell 26, the magnetic force generated by the electromagnet is used to temporarily limit the position between the hoop plate 11 and the semi-conical shell 26. When the hoop plate 11 needs to be reset after bagging is completed, it is ensured that the hoop plate 11 is detached from the semi-conical shell 26 after the spring 2 36 returns to its initial state.

[0045] The traction part includes a winding drum 4 and a side plate 5, the side plate 5 is fixed to the inner wall of one side of the packaging box 1 by bolts, and the winding drum 4 is rotatably connected between the two side plates 5, and a winding motor 6 is fixed to the outer wall of one side of the side plate 5 by bolts, and the output end of the winding motor 6 is connected to one end of the winding drum 4 by a coupling, and a steel wire rope 7 is wound on the circumferential outer wall of the winding drum 4, and the steel wire rope 7 and the guide plate 37 are fixed by a connecting plate 8;

[0046] When the winding motor 6 is used to drive the winding drum 4 to rotate, the wire rope 7 is wound or unwound. When the wire rope 7 is wound, the wire rope 7 can drive the connecting plate 8 and the guide plate 37 to move, so that the guide plate 37 drives the hoop plate 11 to move and tighten the two semi-conical shells 26 during the movement.

[0047] A pulley block 12 is installed on the inner wall of one side of the packaging box 1, and the wire rope 7 is guided by the pulley block 12. A gate plate 18 is fixed to the end of the wire rope 7 away from the winding drum 4;

[0048] The transmission effect of the wire rope 7 is used to drive the gate plate 18 to move along the inner wall of one side of the packaging box 1 when the cement is bagged. The gate plate 18 is used to block the openings in the side wall of the packaging box 1, thereby further preventing dust from overflowing through the openings. The openings in the side wall of the packaging box 1 are used to facilitate bagging of the packaging bags.

[0049] When the present embodiment is in use, when it is necessary to package cement, the packaging bag is firstly connected to one end of the feeding tube 29 by utilizing the opening provided in the side wall of the packaging box 1, and then the winding motor 6 is utilized to drive the winding drum 4 to rotate. The winding drum 4 reels the steel wire rope 7 during rotation, and the guide plate 37 is driven to move during the reeling process. The guide plate 37 indirectly drives the hoop plate 11 to move toward the direction of the two semi-conical shells 26 to tighten the space between the two semi-conical shells 26. After tightening, the semi-conical shells 26 clamp and fix the packaging bag while preventing cement from overflowing during bagging. Then, the winding motor 6 is utilized to continue to drive the winding drum 4 to rotate, so that the gate plate 18 continues to move upward under the traction of the steel wire rope 7 until the gate plate 18 blocks the opening provided in the side wall of the packaging box 1, and then the solenoid valve 16 is opened so that the cement in the filling tube 2 enters the packaging bag along the corrugated hose 15 and the feeding tube 29 for bagging. After the cement is bagged, the packaging bag is taken out from the inside of the packaging box 1.

[0050] Embodiment 2:

[0051] A cement packaging device with dust reduction function, such as Figures 1 to 7 As shown, in order to facilitate dust reduction, this embodiment makes the following supplements on the basis of embodiment 1: a receiving plate 21 is fixed to the inner wall of the bottom of the packaging box 1 by bolts, and a lever 24 is rotatably connected between the two receiving plates 21 through a rotating shaft, and an intermediate plate 20 is welded to the bottom of the embedded plate 33, and a swing plate 19 is rotatably connected to the inner wall of the intermediate plate 20, and the swing plate 19 and the lever 24 are slidably connected, and a flapping plate 23 is fixed to one end of the lever 24;

[0052] When the embedded plate 33 makes reciprocating motion along the vertical direction, the middle plate 20 is used to drive the swing plate 19 and the lever 24 to make synchronous reciprocating swing motion. The accommodating plate 21 is installed near one end of the lever 24. The lever principle is used to make the swing amplitude of the flapping plate 23 greater than the swing amplitude of the swing plate 19. During the reciprocating motion, the flapping plate 23 reciprocates and knocks on the bottom of the bag of cement after bagging, thereby further accelerating the detachment rate of a small amount of dust attached to the outer wall of the bag.

[0053] A negative pressure pump 17 is fixed to the inner wall of the bottom of the packaging box 1 by bolts, and the output end of the negative pressure pump 17 is connected to the bottom of the beating plate 23 through a pipeline, and the input end of the negative pressure pump 17 is connected to the dust bag 22 through a pipeline;

[0054] A dust collecting hole is provided on the beating plate 23. When the negative pressure pump 17 is started, the negative pressure is used to make the dust separated by knocking on the packaging bag be sucked into the dust collecting bag 22 through the dust collecting holes on the beating plate 23 for storage. At the same time, the beating plate 23 can be used to support the packaging bag after bagging, so that the operator can take the packaging bag out of the packaging box 1.

[0055] The above is a preferred specific implementation manner of the present invention, and the protection scope of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by any technician familiar with the field within the technical scope disclosed by the present invention in combination with the prior art or public common sense, within the spirit and principle of the present invention, shall be covered by the protection scope of the present invention.

Claims

1. A cement packaging device with dust reduction function, comprising a packaging box (1), characterized in that: A maintenance cover (3) is fixed on the top of the packaging box (1), a support is fixed between the inner walls on both sides of the packaging box (1), and a feeding tube (29) is installed on the support, a feeding plate (28) is embedded in the circumferential inner wall of the feeding tube (29), and a material hole is opened on the surface of the feeding plate (28), a bracket (30) is welded on the outer wall of the feeding tube (29), and a through hole opened on the surface of the bracket (30) is movably connected with a T-shaped rod (31), and a spring (25) is clamped between the inner wall of one side of the T-shaped rod (31) and the outer wall of the bracket (30), and a semi-conical shell (26) is welded to one end of the T-shaped rod (31), and a shielding plate (27) used in conjunction with the feeding plate (28) is fixed on the inner wall of the semi-conical shell (26), and a square plate (34) is welded on the outer wall of the shielding plate (27), and a spring (32) is fixed on the outer wall of one side of the square plate (34).

2. The cement packaging device with dust reduction function according to claim 1, characterized in that: The support member comprises a support plate (9), a lifting plate (13) and a reciprocating rod (40); the support plate (9) is welded between the inner walls on both sides of the packaging box (1); the reciprocating rod (40) is movably connected to the inner wall of a through hole opened on the surface of the support plate (9); the lifting plate (13) is fixed to the bottom of the reciprocating rod (40); an embedded plate (33) is welded to the bottom of the lifting plate (13); and the feeding tube (29) is fixed to the inner wall of the through hole opened on the surface of the embedded plate (33) by embedding.

3. The cement packaging device with dust reduction function according to claim 2, characterized in that: A support plate (39) is fixed to the outer wall of the top of the support plate (9), and a guide block (38) is movably connected to the inner wall of the support plate (39), and a guide plate (37) is movably connected to the outer wall of the guide block (38), and the guide plate (37) is pulled by a pulling part.

4. The cement packaging device with dust reduction function according to claim 3, characterized in that: A mounting shell (10) is fixed to one end of the guide plate (37), a vertical plate (14) is fixed to the outer wall of the top of the lifting plate (13), and the vertical plate (14) and the mounting shell (10) are movably connected, a through hole opened at one end of the mounting shell (10) is movably connected to a second T-shaped rod (35), and a second spring (36) is clamped between an inner wall of one side of the second T-shaped rod (35) and an inner wall of one side of the mounting shell (10), a hoop plate (11) is fixed to one end of the second T-shaped rod (35), and an electromagnet is fixed to an outer wall of one side of the hoop plate (11).

5. The cement packaging device with dust reduction function according to claim 4, characterized in that: The traction part comprises a winding drum (4) and a side plate (5), wherein the side plate (5) is fixed to an inner wall of one side of the packaging box (1), and the winding drum (4) is movably connected between the two side plates (5), a steel wire rope (7) is wound around the circumferential outer wall of the winding drum (4), and the steel wire rope (7) and the guide plate (37) are fixed via a connecting plate (8).

6. The cement packaging device with dust reduction function according to claim 5, characterized in that: A winding motor (6) is fixed to the outer wall of one side of the side plate (5), and the output end of the winding motor (6) is connected to one end of the winding drum (4) through a coupling.

7. The cement packaging device with dust reduction function according to claim 6, characterized in that: A pulley block (12) is installed on the inner wall of one side of the packaging box (1), and the wire rope (7) is guided by the pulley block (12). A gate plate (18) is fixed to one end of the wire rope (7) away from the winding drum (4).

8. The cement packaging device with dust reduction function according to claim 7, characterized in that: A receiving plate (21) is fixed to the inner wall of the bottom of the packaging box (1), and a lever (24) is movably connected between the two receiving plates (21) via a rotating shaft, and an intermediate plate (20) is welded to the bottom of the embedded plate (33), and a swing plate (19) is movably connected to the inner wall of the intermediate plate (20), and the swing plate (19) and the lever (24) are movably connected, and a beating plate (23) is fixed to one end of the lever (24).

9. The cement packaging device with dust reduction function according to claim 8, characterized in that: A negative pressure pump (17) is fixed to the inner wall of the bottom of the packaging box (1), and the output end of the negative pressure pump (17) is connected to the bottom of the beating plate (23) through a pipeline, and the input end of the negative pressure pump (17) is connected to a dust bag (22) through a pipeline.

10. The cement packaging device with dust reduction function according to claim 9, characterized in that: A filling tube (2) is embedded in a through hole formed at one end of the packaging box (1), a solenoid valve (16) is fixed to one end of the filling tube (2), and the solenoid valve (16) and one end of the feeding tube (29) are connected via a corrugated hose (15).

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