Automatic sealing extrusion device

Abstract

The utility model relates to an automatic sealing and extruding device which comprises a material barrel (1), a barrel cover (2) and a pressure plate (3) which is arranged in the material barrel (1) on the barrel cover (2) through a lifting mechanism in a lifting mode, a circle of annular groove (4) is formed in the periphery of the pressure plate (3), and an annular air bag (5) is embedded in the annular groove (4). A through hole (6) is formed in the bottom of the annular groove (4), and an air pipe through hole (7) is formed in the barrel cover (2); an air tap of the annular air bag (5) is connected with an external air source through air pipes arranged in the through hole (6) and the air pipe through hole (7). The sealing device is simple in structure, good in sealing effect, convenient to operate, low in cost and high in production efficiency.

Description

Technical Field

[0001] The utility model relates to an automatic sealing and extrusion device, belonging to the technical field of chemical production equipment. Background Art

[0002] In the chemical industry, technological processes such as the preparation, pouring, and filling of viscous materials are often encountered. Due to the poor fluidity of viscous materials, relying solely on their own flow characteristics for production will seriously affect production efficiency. For example, the processed paint product has a high viscosity, and it is impossible to rely on the automatic outflow of the viscous paint to pour the paint product from the material barrel into the packaging barrel for filling.

[0003] To solve this technical problem, generally, the pressure inside the material barrel is increased, and relying on the high pressure inside the material barrel, the high-viscosity material inside the material barrel is extruded and discharged, thereby increasing the flow rate of the material and improving production efficiency. The specific method is to set an active pressing plate inside the material barrel, apply a downward pressure to the pressing plate to make it descend, and the pressing plate then forms an extrusion force on the viscous material, forcing it to flow out of the material barrel at a high speed. To ensure the pressure stability during the downward movement of the pressing plate and prevent the material from spraying out from the gap between the pressing plate and the inner wall of the material barrel, it is necessary to install a ring-shaped sealing ring around the edge of the pressing plate to maintain the seal. When the material discharge is completed, to raise and retract the pressing plate, it is necessary to introduce air into the material barrel first and remove the sealing ring at the same time, so that the pressing plate can be smoothly lifted and taken out. It can be seen that in the prior art, each time the pressing plate descends and rises, the sealing ring needs to be disassembled and installed manually once, the operation is cumbersome, seriously affecting production efficiency, and at the same time, the sealing ring is easily damaged, needs to be replaced frequently, and the cost is high.

[0004] Therefore, there is an urgent need for an automatic sealing and extrusion device with a simple structure, good sealing effect, convenient operation, low cost, and high production efficiency. Summary of the Invention

[0005] The purpose of the utility model is to overcome the above deficiencies and provide an automatic sealing and extrusion device with a simple structure and good sealing effect. The pressing plate does not need to disassemble and install the sealing ring when descending and rising, is convenient to operate, has low cost, and high production efficiency.

[0006] The purpose of the utility model is achieved as follows:

[0007] An automatic sealing and extrusion device includes a material barrel, a barrel cover, and a pressing plate that is arranged inside the material barrel through a lifting mechanism on the barrel cover. A ring-shaped groove is provided around the pressing plate, and a ring-shaped airbag is embedded in the ring-shaped groove; a through hole is provided at the bottom of the ring-shaped groove, and an air pipe through hole is provided on the barrel cover; the air nozzle of the ring-shaped airbag is connected to an external air source through an air pipe arranged in the through hole and the air pipe through hole.

[0008] Further, the lifting mechanism includes an oil cylinder vertically installed upside down on the barrel cover, and the piston rod of the oil cylinder passes through the barrel cover and is fixedly connected to the pressing plate.

[0009] Further, a base for fixing an oil cylinder is installed on the barrel cover, and a self-lubricating bearing is provided in the inner hole of the base to provide guidance and lubrication for the lifting of the piston rod of the oil cylinder.

[0010] Further, a guiding mechanism is provided between the barrel cover and the pressing plate, including a guiding sleeve arranged on the barrel cover and a guiding rod fixedly installed on the pressing plate; the guiding rod is movably embedded in the guiding sleeve.

[0011] Further, a thickened wear-resistant layer is provided at the contact part between the outer ring of the annular airbag and the inner wall of the material barrel.

[0012] Further, the periphery of the material barrel and the barrel cover is tightly connected through a locking mechanism, including a C-shaped seat, a pressing block hinged to the upper end of the C-shaped seat through a connecting block, and a pressing bolt screwed on the connecting block; the pressing bolt abuts against the back of the pressing block.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] By providing an annular deep groove around the pressing plate of the present utility model to accommodate the annular airbag, and controlling the inflation and deflation of the annular airbag through an external air source, the actual requirements of sealing when the pressing plate is pressed down and unsealing when it rises are met. The automatic sealing and unsealing operation eliminates the need for manual repeated installation of sealing rings. The overall structure of the equipment is simple, the sealing effect is good, the production efficiency of viscous materials is greatly improved, and the production cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of an automatic sealing and extrusion device of the present utility model.

[0016] Figure 2 is an inflated view of the annular airbag of an automatic sealing and extrusion device of the present utility model.

[0017] Figure 3 is a schematic structural view of the locking mechanism of an automatic sealing and extrusion device of the present utility model.

[0018] Wherein:

[0019] material barrel 1, barrel cover 2, pressing plate 3, annular groove 4, annular airbag 5, through hole 6, air pipe through hole 7, oil cylinder 8, base 9, self-lubricating bearing 10, guiding sleeve 11, guiding rod 12, C-shaped seat 13, pressing block 14, pressing bolt 15, connecting block 16. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] See Figures 1 to 3, an automatic sealing and extrusion device related to the present utility model includes a material barrel 1, a barrel cover 2, and a pressing plate 3 that is arranged inside the material barrel 1 and lifted and lowered by a lifting mechanism on the barrel cover 2. The periphery of the material barrel 1 and the barrel cover 2 is detachably and lockingly connected through a plurality of locking mechanisms. The locking mechanism includes a C-shaped seat 13, a pressing block 14 hingedly connected to the upper end of the C-shaped seat 13 through a connecting block 16, and a pressing bolt 15 screwed on the connecting block; the pressing bolt 15 abuts against the back of the pressing block 14; the barrel cover 2 is generally fixedly installed on the extrusion equipment. After the material barrel 1 after the production of viscous materials on production equipment such as mixers is moved below the barrel cover 2, the locking mechanism is installed on the outer edges of the material barrel 1 and the barrel cover 2, and the pressing bolt 15 is tightened to lock the material barrel 1 to the barrel cover 2;

[0021] The lifting mechanism includes an oil cylinder 8 vertically installed upside down on the barrel cover 2. The piston rod of the oil cylinder 8 passes through the barrel cover 2 and is fixedly connected to the pressing plate 3. The oil cylinder 8 controls the lifting action of the pressing plate 3; specifically, a base 9 for fixing the oil cylinder 8 is installed on the barrel cover 2, and a self-lubricating bearing 10 is provided in the inner hole of the base 9 to provide guidance and lubrication for the lifting of the piston rod of the oil cylinder 8;

[0022] A circular groove 4 is provided around the pressing plate 3, and a circular airbag 5 is embedded in the circular groove 4. In order to better accommodate the circular airbag 5 and prevent problems such as the circular airbag 5 being offset by force, the circular groove 4 is set as a flat and deep groove; a through hole 6 is provided at the bottom of the circular groove 4, and a tracheal through hole 7 is provided on the barrel cover 2; the nozzle of the circular airbag 5 is connected to an external air source through a trachea arranged in the through hole 6 and the tracheal through hole 7. For the convenience of connection and installation, the nozzle of the circular airbag 5 can be directly installed in the through hole 6, and at the same time, it can play a role in fixing the position of the airbag;

[0023] When the pressing plate 3 is lowered and needs to be sealed, the circular airbag 5 is inflated to expand and block the gap between the pressing plate 3 and the inner wall of the material barrel 1, playing a sealing role. In order to improve the service life of the circular airbag 5, a thickened wear-resistant layer can be provided at the contact part between the outer circle of the circular airbag 5 and the inner wall of the material barrel 1. When the pressing plate 3 is raised and the seal needs to be released, the circular airbag 5 is deflated to contract, exposing the gap between the pressing plate 3 and the inner wall of the material barrel 1, allowing air to enter the inner cavity of the material barrel 1, facilitating the lifting of the pressing plate 3, and avoiding the operation of manually repeatedly disassembling and assembling the sealing ring;

[0024] In order to ensure the moving stability of the pressing plate 3 during the lifting process, a guiding mechanism is provided between the barrel cover 2 and the pressing plate 3, including a guiding sleeve 11 provided on the barrel cover 2 and a guiding rod 12 fixedly installed on the pressing plate 3; the guiding rod 12 is movably embedded in the guiding sleeve 11;

[0025] During operation, the barrel 1 filled with viscous material is moved to the bottom of the barrel cover 2, and the clamping bolts 15 of each locking mechanism are tightened to lock the barrel 1 and the barrel cover 2; the annular air bag 5 is inflated by an external air source to ensure the seal between the pressure plate 3 and the inner wall of the barrel 1, and the oil cylinder 8 drives the pressure plate 3 to press down, forcing the viscous material to flow out of the barrel 1 quickly under high pressure; after the downward pressure is completed, the annular air bag 5 is deflated and contracted to release the sealing state, and the barrel 1 is automatically connected to the outside air, and the pressure plate 3 can be lifted smoothly. There is no need for manual disassembly and assembly of the sealing ring throughout the process, which greatly improves production efficiency and reduces production costs.

[0026] In addition: It should be noted that the above specific implementation is only an optimization scheme of this patent. Any changes or improvements made by technicians in this field based on the above concept are within the scope of protection of this patent.

Claims

1. An automatic sealing extrusion device, comprising a barrel (1), a barrel cover (2), and a pressure plate (3) disposed inside the barrel (1) and raised and lowered on the barrel cover (2) by a lifting mechanism, characterized in that: The pressure plate (3) is provided with an annular groove (4) around its periphery, and an annular air bag (5) is embedded in the annular groove (4); a through hole (6) is provided at the bottom of the annular groove (4), and an air pipe through hole (7) is provided on the barrel cover (2); the air nozzle of the annular air bag (5) is connected to an external air source via an air pipe provided in the through hole (6) and the air pipe through hole (7).

2. The automatic sealing and extruding device according to claim 1, characterized in that: The lifting mechanism comprises an oil cylinder (8) which is vertically mounted upside down on the barrel cover (2); a piston rod of the oil cylinder (8) passes through the barrel cover (2) and is fixedly connected to the pressure plate (3).

3. The automatic sealing and extruding device according to claim 1, characterized in that: The barrel cover (2) is provided with a base (9) for fixing the oil cylinder (8), and a self-lubricating bearing (10) is provided in the inner hole of the base (9) to provide guidance and lubrication for the lifting and lowering of the piston rod of the oil cylinder (8).

4. The automatic sealing and extruding device according to claim 1, characterized in that: A guide mechanism is provided between the barrel cover (2) and the pressure plate (3), comprising a guide sleeve (11) provided on the barrel cover (2) and a guide rod (12) fixedly mounted on the pressure plate (3); the guide rod (12) is movably embedded in the guide sleeve (11).

5. The automatic sealing and extruding device according to claim 1, characterized in that: A thickened wear-resistant layer is provided at the contact portion between the outer ring of the annular airbag (5) and the inner wall of the barrel (1).

6. The automatic sealing and extruding device according to claim 1, characterized in that: The barrel (1) and the barrel cover (2) are locked and connected on all sides by a locking mechanism, comprising a C-shaped seat (13), a pressing block (14) hingedly connected to the upper end of the C-shaped seat (13) by a connecting block (16), and a clamping bolt (15) threadedly screwed on the connecting block; the clamping bolt (15) abuts against the back of the pressing block (14).

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