Packing device for nitrocotton production

Abstract

The utility model relates to the technical field of nitrocotton packaging, and discloses a packaging device for nitrocotton production, which comprises a base and a back plate, the back plate is vertically fixed above the base, the front end of the back plate is welded and fixed with a vertically arranged leakage cylinder through a connecting rod, and the caliber of the bottom of the leakage cylinder is smaller than that of the upper part of the leakage cylinder. A transverse plate is fixedly welded to the front end of the back plate above the leakage cylinder, a multi-stage electric push rod is installed on the surface of the transverse plate, a pressing plate arranged above the leakage cylinder is fixed to the tail end of the multi-stage electric push rod, the leakage cylinder is of a double-layer structure, and an air cavity is formed in the double-layer structure. According to the technical scheme, when the outer ring below the leakage cylinder is sleeved with the packaging bag, the thin hose is also arranged in the packaging bag, when the pressing plate is pressed downwards to compress nitrocotton into the packaging bag, the air exhaust fan is started to exhaust air in the air cavity of the leakage cylinder, and then the air in the packaging bag is rapidly exhausted from the thin hose; the packaging bag is prevented from being broken by gas when the nitrocotton is rapidly pressed down, and the resistance of the air in the packaging bag to the nitrocotton is reduced when the nitrocotton is pressed in.

Description

TECHNICAL FIELD

[0001] The utility model relates to nitrocellulose packing technical field, specifically is a kind of packing device for nitrocellulose production. BACKGROUND

[0002] Nitrocellulose generally refers to nitrocellulose, which is an organic macromolecular compound, the product of cellulose and nitrate esterification reaction, white or slightly yellow cotton flock, insoluble in water, soluble in ester, acetone and other organic solvents, can be used for educational and cultural supplies, daily necessities, instrument nameplate and pharmaceutical industry, photographic film, photographic film and leather manufacturing, when nitrocellulose is produced and processed, packing device is needed to pack nitrocellulose, packing device is generally composed of main machine, hydraulic system, electrical control system, auxiliary machine and the like, by tensioning, heat capacity, cutting, bonding, nitrocellulose is compressed and packed, the storage and transportation of nitrocellulose are facilitated.

[0003] Because nitrocellulose can be compressed vacuum packaging to save space, it is needed to compress nitrocellulose before vacuumizing and sealing, and pack it into packaging bag, when nitrocellulose is compressed, its air permeability will be weakened, at this time, when nitrocellulose is quickly pushed into packaging bag, the gas in the inside of packaging bag cannot be quickly discharged and is compressed, packaging bag is easily broken, and the resistance of air exists, which is not convenient for nitrocellulose to be quickly compressed into packaging bag.Therefore, we propose a kind of packing device for nitrocellulose production. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of packing device for nitrocellulose production, when packaging bag is sleeved in the outer circle below the leakage cylinder, thin hose is also placed in packaging bag, when the plate is pressed and nitrocellulose is compressed to the inside of packaging bag, air extraction fan starts to extract air in the air cavity of leakage cylinder, then the air in the inside of packaging bag is quickly extracted from thin hose, avoid that gas will break packaging bag when nitrocellulose is quickly pressed down, and reduce the resistance of air in the inside of packaging bag to nitrocellulose when being pressed, the problem raised in background art is solved.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of packing device for nitrocellulose production, including base and backboard, the backboard is vertically fixed in the top of base, the front end of backboard is welded with the leakage cylinder of vertical arrangement by connecting rod, the bottom caliber of leakage cylinder is less than its upper caliber, the front end of backboard upper side is welded with horizontal plate, horizontal plate surface is installed with multistage electric push rod, the end of multistage electric push rod is fixed with the plate placed in the upper side of leakage cylinder;The leakage cylinder is double-layer structure, and air cavity is formed in the inside of double-layer structure, the bottom both sides of leakage cylinder are connected with thin hose communicated with the inside of air cavity, the front end surface of leakage cylinder is also provided with air cylinder communicated with the inside of air cavity, air cylinder inside is installed with air extraction fan for extracting the air in the inside of air cavity.

[0006] By adopting the technical scheme, the packing bag is sleeved on the lower outer ring of the leakage cylinder and is locked by being pressed by the arc plate, then the nitrocellulose is poured into the leakage cylinder, and then the nitrocellulose is quickly compressed and pressed into the packing bag by the pressing plate, the air in the packing bag is quickly extracted from the thin hose, the resistance of the air to be quickly extracted is reduced when being pressed down, and the packing bag is prevented from being broken by the air.

[0007] Optionally, the surface of the pressing plate is provided with a through hole, and a plurality of through holes are uniformly arranged.

[0008] By adopting the technical scheme, when the pressing plate presses the nitrocellulose into the packing bag, the through hole can play an auxiliary exhaust role.

[0009] Optionally, the pressing plate is located directly above the leakage cylinder, and the diameter of the pressing plate is smaller than the inner diameter of the leakage cylinder.

[0010] By adopting the technical scheme, it is ensured that the pressing plate can smoothly pass through the leakage cylinder to press the nitrocellulose into the packing bag.

[0011] Optionally, the back plate on both sides of the lower part of the leakage cylinder is welded and fixed with a side plate at the front end, a side electric push rod is installed on the surface of the side plate, and an arc plate is fixed at the tail end of the side electric push rod and is in contact with the outer surface of the lower part of the leakage cylinder.

[0012] By adopting the technical scheme, when the packing bag is sleeved on the lower outer ring of the leakage cylinder, the arc plate is used to press and lock the packing bag.

[0013] Optionally, the inner surface of the arc plate is fixed with a rubber pad.

[0014] By adopting the technical scheme, the arc plate is pressed on the surface of the packing bag through the rubber pad, so that wear of the packing bag is avoided when the packing bag is pressed by the arc plate.

[0015] Optionally, the inner part of the lower part of the thin hose is fixed with a filter screen.

[0016] By adopting the technical scheme, the filter screen avoids that the nitrocellulose is sucked into the thin hose.

[0017] Compared with the prior art, the beneficial effects of the technical scheme of the present application are as follows:

[0018] 1. The leakage cylinder for guiding the nitrocellulose into the packing bag is provided with an air cavity, and a thin hose in communication with the air cavity is arranged below, when the packing bag is sleeved on the lower outer ring of the leakage cylinder, the thin hose is also arranged in the packing bag, when the nitrocellulose is compressed into the packing bag by the pressing plate, the air fan is started to extract the air in the air cavity of the leakage cylinder, then the air in the packing bag is quickly extracted from the thin hose, the packing bag is prevented from being broken by the air when the nitrocellulose is quickly pressed down, and the resistance of the air in the packing bag to the nitrocellulose being pressed in is reduced.

[0019] 2. The technical scheme of the application is characterized in that a plurality of through holes are uniformly arranged on the surface of the pressing plate, and the through holes can assist in discharging the air in the packaging bag when the pressing plate presses the nitrocellulose into the packaging bag. BRIEF DESCRIPTION OF DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings:

[0021] Fig. 1 Figure 1 is a schematic diagram of the overall structure of the packaging device for nitrocellulose production of the present application;

[0022] Fig. 2 Figure 4 is a schematic diagram of the structure of the air cylinder of the packaging device for nitrocellulose production of the present application;

[0023] Fig. 3 Figure 5 is a schematic diagram of the cross-sectional structure of the air cylinder of the packaging device for nitrocellulose production of the present application.

[0024] In the figure: 1, base; 2, back plate; 3, leakage cylinder; 31, connecting rod; 32, flexible hose; 33, air cylinder; 331, air suction fan; 4, cross plate; 41, multi-stage electric push rod; 42, pressing plate; 421, through hole; 5, side plate; 51, side electric push rod; 52, arc plate. DETAILED DESCRIPTION

[0025] Referring to Figs. 1-3 The present application provides a technical scheme: a packaging device for nitrocellulose production, comprising a base 1 and a back plate 2, the back plate 2 is vertically fixed above the base 1, and the front end of the back plate 2 is welded with a leakage cylinder 3 through a connecting rod 31, the leakage cylinder 3 is vertically arranged at the front end of the back plate 2, and the bottom diameter of the leakage cylinder 3 is smaller than the diameter of the upper part, and in use, the packaging bag is sleeved on the lower outer circle of the leakage cylinder 3, so that the nitrocellulose can be added into the packaging bag through the leakage cylinder 3.

[0026] The front end of the back plate 2 on both sides below the leakage cylinder 3 is welded with a side plate 5, the surface of the side plate 5 is provided with a side electric push rod 51, and the end of the side electric push rod 51 is fixed with an arc plate 52 which is in contact with the outer surface of the leakage cylinder 3 below, in use, the side electric push rod 51 is first driven to move the arc plate 52 away from the outer surface of the leakage cylinder 3, then the packaging bag is sleeved on the lower outer circle of the leakage cylinder 3, and then the side electric push rod 51 is controlled to drive the arc plate 52 to approach the outer surface of the leakage cylinder 3, the inner surface of the arc plate 52 is fixed with a rubber pad, so that the arc plate 52 is tightly pressed on the surface of the packaging bag through the rubber pad, so as to tightly lock the packaging bag on the lower outer circle of the leakage cylinder 3.

[0027] In addition, the front end of the back plate 2 above the leakage cylinder 3 is welded and fixed with a horizontal plate 4, the surface of the horizontal plate 4 is installed with a multi-stage electric push rod 41, the end of the multi-stage electric push rod 41 is fixed with a pressing plate 42 placed above the leakage cylinder 3, the pressing plate 42 is located directly above the leakage cylinder 3, and the diameter of the pressing plate 42 is smaller than the inner diameter of the leakage cylinder 3 below. After the nitrocellulose is added into the packaging bag, part of it is placed in the leakage cylinder 3, and then the multi-stage electric push rod 41 can be started to compress and push the nitrocellulose into the inside of the packaging bag.

[0028] Since the above technical scheme is adopted, when the nitrocellulose is quickly compressed and pushed into the packaging bag, the air permeability of the nitrocellulose is weakened, the air cannot be quickly discharged, the air has a blocking effect on the quick compression of the nitrocellulose, and the packaging bag is easily broken by the air, so that the leakage cylinder 3 is a double-layer structure, the inside of the double-layer structure is formed with an air cavity, the bottom of the leakage cylinder 3 is connected with a thin hose 32 in communication with the inside of the air cavity, and the front end surface of the leakage cylinder 3 is further provided with an air cylinder 33 in communication with the inside of the air cavity. The air cylinder 33 is internally installed with an air extraction fan 331 for extracting air inside the air cavity. When in use, the packaging bag is sleeved on the outer circle of the leakage cylinder 3, the thin hose 32 is placed in the packaging bag, and the nitrocellulose is pressed into the packaging bag. The air extraction fan 331 is started to make the air in the packaging bag quickly enter the air cavity in the leakage cylinder 3 through the thin hose 32, and then is discharged from the position of the air cylinder 33, so as to avoid the air pressure from breaking the packaging bag when the nitrocellulose is quickly pressed into the packaging bag, and to reduce the air pressure resistance when being pressed to make the nitrocellulose can be quickly pressed into the packaging bag. In order to avoid that the thin hose 32 sucks the nitrocellulose, the lower inside of the thin hose 32 is further fixed with a filter screen (not shown in the figure).

[0029] The surface of the pressing plate 42 is further provided with a through hole 421, and a plurality of through holes 421 are uniformly arranged. The through holes 421 on the surface of the pressing plate 42 can assist in discharging the air inside the packaging bag.

[0030] In use, the air suction fan 331, the multi-stage electric push rod 41 and the side electric push rod 51 are all connected to the industrial computer, the side electric push rod 51 is first controlled to drive the arc plate 52 to move away from the outer surface below the leakage cylinder 3, the packaging bag is sleeved on the outer ring below the leakage cylinder 3, and the hose is also placed in the packaging bag, then the side electric push rod 51 is controlled to drive the arc plate 52 to move close to the surface of the leakage cylinder 3 to press the packaging bag tightly and lock the packaging bag on the outer surface of the leakage cylinder 3, nitrocellulose is poured from above the leakage cylinder 3 and filled into the packaging bag, at the same time, the leakage cylinder 3 is also filled with nitrocellulose, then the multi-stage electric push rod 41 is controlled to drive the pressing plate 42 to lower the height, and the nitrocellulose is pressed into the packaging bag, when the pressing plate 42 is pressed to the packaging bag, the through hole 421 on the surface of the pressing plate 42 can assist in discharging the air in the packaging bag, at the same time, when the air suction fan 331 is started, the air in the packaging bag can be quickly introduced into the air cavity in the leakage cylinder 3 through the thin hose 32, and then discharged from the position of the air cylinder 33, so that the packaging bag is not squeezed and broken by the air pressure when the nitrocellulose is quickly pressed into the packaging bag, the air pressure resistance during pressing is reduced, and the nitrocellulose can be quickly pressed into the packaging bag, finally, the side electric push rod 51 is controlled to drive the arc plate 52 to move outward to unlock the packaging bag, so that the packaging bag filled with nitrocellulose can be subjected to vacuumizing and sealing treatment, and the packaging work is completed.

Claims

1. A packing device for the production of nitrocellulose, comprising a base (1) and a back plate (2), characterized in that: The back plate (2) is vertically fixed above the base (1), the front end of the back plate (2) is welded and fixed with the vertically arranged leakage cylinder (3) through the connecting rod (31), the bottom caliber of the leakage cylinder (3) is smaller than the caliber above it, the front end of the back plate (2) above the leakage cylinder (3) is welded and fixed with the horizontal plate (4), the horizontal plate (4) is installed with the multi-stage electric push rod (41), the end of the multi-stage electric push rod (41) is fixed with the pressing plate (42) above the leakage cylinder (3). The leakage cylinder (3) is a double-layer structure, the inside of the double-layer structure is formed with the air cavity, the two sides of the bottom of the leakage cylinder (3) are connected with the thin hose (32) in communication with the inside of the air cavity, the front end surface of the leakage cylinder (3) is further provided with the air cylinder (33) in communication with the inside of the air cavity, the inside of the air cylinder (33) is installed with the air extraction fan (331) for extracting the air inside the air cavity.

2. The packing device for producing nitrocellulose according to claim 1, characterized in that: The surface of the pressing plate (42) is provided with the through hole (421), and a plurality of through holes (421) are uniformly arranged.

3. The packing device for nitrocellulose production according to claim 1, characterized in that: The pressing plate (42) is located directly above the leakage cylinder (3), and the diameter of the pressing plate (42) is smaller than the inner diameter of the leakage cylinder (3) below.

4. The packing device for nitrocellulose production according to claim 1, characterized in that: The front end of the back plate (2) on both sides below the leakage cylinder (3) is welded and fixed with the side plate (5), the surface of the side plate (5) is installed with the side electric push rod (51), and the end of the side electric push rod (51) is fixed with the arc plate (52) attached to the outer surface below the leakage cylinder (3).

5. The packing device for producing nitrocellulose according to claim 4, characterized in that: The inner side surface of the arc plate (52) is attached and fixed with the rubber pad.

6. The packing device for nitrocellulose production according to claim 1, characterized in that: The inside below the thin hose (32) is fixed with the filter screen.

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