Residual gas recovery device for automatic filling line of aerosol can

Abstract

The utility model discloses an aerosol can automatic filling line residual gas recovery device which comprises a fixing cover, the upper end of the fixing cover is provided with an opening and is fixedly connected with a filling nozzle, the inner wall of the filling nozzle is slidably connected with a ring block, the outer wall of one side of the fixing cover is provided with an opening and is fixedly connected with a fixing pipe, and the inner wall of the fixing pipe is fixedly connected with a gas suction pipe. One end of the air suction pipe extends out of the fixing pipe and is fixedly connected with an air pump, a groove is formed in the outer wall of the end, located on the fixing cover, of the fixing pipe in a penetrating mode, a sealing block is slidably connected to the inner wall of the groove, and an air hole is formed in the position, opposite to the fixing pipe, of the outer wall of one side of the ring block in a penetrating mode; and the conical block abuts against the ring block, leaked gas can be recycled, resource waste is reduced, meanwhile, the gas suction pipe can be sealed, and the situation that impurities enter the gas suction pipe to cause blockage and affect the recycling efficiency when the gas suction pipe is not used is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of aerosol filling equipment, in particular to a residual gas recovery device for an automatic filling line of an aerosol can. Background Art

[0002] Aerosol cans are mainly used to contain aerosols at one time. There are various types and specifications of aerosol cans. According to the structure, they are divided into one-piece cans, two-piece cans, three-piece cans, etc. When in use, the aerosol product will be sprayed out through the valve in a controlled form under the action of pre-pressure. The working principle of the aerosol filling machine mainly includes three steps: filling, sealing and inflation.

[0003] During the operation of the automatic filling line, empty aerosol cans will be filled with liquid, and residual gas will be generated in the process. If the residual gas is not recovered, it will increase resource waste and cause environmental pollution. Therefore, it is necessary to propose a residual gas recovery device for the automatic filling line of aerosol cans. Utility Model Content

[0004] The utility model aims to provide a residual gas recovery device for an automatic filling line of an aerosol can, so as to solve the problems of resource waste and environmental pollution caused by non-recovery of residual gas proposed in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a residual gas recovery device for an automatic filling line of an aerosol can, comprising a fixed cover, an upper end of the fixed cover is provided with an opening and fixedly connected to a filling nozzle, an inner wall of the filling nozzle is slidably connected to a ring block, an outer wall of one side of the fixed cover is provided with an opening and fixedly connected to a fixed pipe, and an inner wall of the fixed pipe is fixedly connected to an air intake pipe;

[0006] One end of the air suction pipe extends to the outside of the fixed pipe and is fixedly connected to an air pump. The outer wall of one end of the fixed pipe located at the fixed cover is penetrated by a groove, and the inner wall of the groove is slidably connected to a sealing block.

[0007] As a preferred solution of the utility model, a vent hole is provided through the outer wall of one side of the ring block relative to the fixed pipe, and a conical block is fixedly connected to the outer wall of one side of the sealing block, and the conical block abuts against the ring block.

[0008] As a preferred solution of the utility model, a first spring is fixedly connected to the upper surface of the ring block, and the other end of the first spring is fixedly connected to the fixing cover.

[0009] As a preferred solution of the utility model, a second spring is fixedly connected to an outer wall of one side of the sealing block, and the other end of the second spring is fixedly connected to the fixing tube.

[0010] As a preferred solution of the utility model, the inner wall of the fixed cover is symmetrically provided with limiting grooves, the inner walls of the two limiting grooves are slidably connected with sliders, and one end of the two sliders is fixedly connected to the ring block.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the aerosol can is filled through the filling nozzle, and when the filling nozzle is separated from the aerosol can, some gas leaks, and the air pump is started to absorb and recover the leaked gas, and the first spring pushes the ring block to move downward, and the ring block pushes the sealing block to abut against the fixed pipe through the conical block to seal the suction pipe, so that the leaked gas can be recovered and the waste of resources can be reduced. At the same time, the suction pipe can be sealed to prevent impurities from entering the suction pipe when not in use, causing blockage and affecting the recovery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only examples of the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0014] Figure 2 This is a bottom view structural diagram of an embodiment of the utility model;

[0015] Figure 3 It is a cross-sectional structural schematic diagram of an embodiment of the utility model;

[0016] Figure 4 This is a schematic diagram of the cross-sectional structure of the embodiment of the utility model in operation;

[0017] Figure 5 It is a schematic diagram of the installation position structure of the slider in the embodiment of the utility model.

[0018] Figure numerals: 1. fixed cover; 2. filling nozzle; 3. ring block; 4. fixed pipe; 5. suction pipe; 6. air pump; 7. sealing block; 8. air vent; 9. conical block; 10. first spring; 11. second spring; 12. slider. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the embodiments of the present invention.

[0021] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0022] See also Figure 1-5 The residual gas recovery device of the automatic filling line of aerosol cans of the utility model embodiment comprises a fixed cover 1, the upper end of the fixed cover 1 is provided with an opening and is fixedly connected to a filling nozzle 2, the inner wall of the filling nozzle 2 is slidably connected to a ring block 3, the outer wall of one side of the fixed cover 1 is provided with an opening and is fixedly connected to a fixed pipe 4, and the inner wall of the fixed pipe 4 is fixedly connected to an air intake pipe 5.

[0023] One end of the suction pipe 5 extends to the outside of the fixed pipe 4 and is fixedly connected to the air pump 6. The fixed pipe 4 is located at one end of the fixed cover 1 and has a groove running through the outer wall. The inner wall of the groove is slidably connected to a sealing block 7. The output end of the air pump 6 is connected to the collection device.

[0024] An air vent 8 is provided through the outer wall of one side of the ring block 3 at a position relative to the fixed pipe 4 , and a conical block 9 is fixedly connected to the outer wall of one side of the sealing block 7 , and the conical block 9 abuts against the ring block 3 .

[0025] The upper surface of the ring block 3 is fixedly connected with a first spring 10 , and the other end of the first spring 10 is fixedly connected with the fixing cover 1 , so that the first spring 10 can be used to push the ring block 3 to move.

[0026] A second spring 11 is fixedly connected to an outer wall of one side of the sealing block 7 , and the other end of the second spring 11 is fixedly connected to the fixing tube 4 , so that the second spring 11 can be used to push the sealing block 7 .

[0027] The inner wall of the fixed cover 1 is symmetrically provided with limiting grooves, and the inner walls of the two limiting grooves are slidably connected with sliders 12, and one end of the two sliders 12 is fixedly connected to the ring block 3, so that the sliders 12 can be used to limit the ring block 3.

[0028] When using the embodiment of the utility model, the air pump 6 is connected to the external driving source through the controller, the aerosol can is moved to the bottom of the filling nozzle 2, the fixed cover 1 and the filling nozzle 2 are moved downward, the ring block 3 is against the aerosol can, the ring block 3 moves upward in the fixed cover 1 and compresses the first spring 10 until the filling nozzle 2 is against the aerosol can, the air vent 8 moves to the fixed tube 4, the second spring 11 pushes the sealing block 7 and the conical block 9 to move outward, the suction pipe 5 is exposed, and the aerosol can is filled through the filling nozzle 2. After the filling is completed, the fixed cover 1 and the filling nozzle 2 are moved upward. At this time, part of the filling liquid is sprayed out from the aerosol can, the air pump 6 is started, and the air pump 6 sucks the filling liquid out of the fixed cover 1 through the suction pipe 5. The air pump 6 is stopped, the first spring 10 pushes the ring block 3 downward, the ring block 3 squeezes the conical block 9 and the sealing block 7 inward, so that the sealing block 7 is against the fixed tube 4, and the suction pipe 5 is sealed.

[0029] The above shows and describes the basic principles of the present invention. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only intended to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A residual gas recovery device for an automatic filling line for aerosol cans, comprising a fixed cover (1), characterized in that: The upper end of the fixed cover (1) is provided with an opening and is fixedly connected to a filling nozzle (2); the inner wall of the filling nozzle (2) is slidably connected to a ring block (3); an outer wall of one side of the fixed cover (1) is provided with an opening and is fixedly connected to a fixing pipe (4); the inner wall of the fixing pipe (4) is fixedly connected to an air intake pipe (5); One end of the air intake pipe (5) extends outside the fixed pipe (4) and is fixedly connected to an air pump (6); a groove is formed through the outer wall of one end of the fixed pipe (4) located at the fixed cover (1); a sealing block (7) is slidably connected to the inner wall of the groove; An air vent (8) is provided through an outer wall of one side of the ring block (3) at a position relative to the fixed tube (4); a conical block (9) is fixedly connected to an outer wall of one side of the sealing block (7), and the conical block (9) abuts against the ring block (3); A second spring (11) is fixedly connected to an outer wall of one side of the sealing block (7), and the other end of the second spring (11) is fixedly connected to the fixing tube (4).

2. The residual gas recovery device for the automatic filling line of aerosol cans according to claim 1 is characterized by: A first spring (10) is fixedly connected to the upper surface of the ring block (3), and the other end of the first spring (10) is fixedly connected to the fixing cover (1).

3. The residual gas recovery device for the automatic filling line of aerosol cans according to claim 1 is characterized by: The inner wall of the fixed cover (1) is symmetrically provided with limit grooves, the inner walls of two limit grooves are slidably connected with sliders (12), and one end of the two sliders (12) is fixedly connected to the ring block (3).

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