Liquid separation type negative pressure canning head

Abstract

The utility model discloses a liquid separation type negative pressure canning head which comprises a liquid inlet pipe, a liquid outlet pipe and a vacuumizing pipe which are coaxially arranged, the vacuumizing pipe is fixedly connected with the liquid inlet pipe, the front end of the liquid outlet pipe extends to the outer end of the liquid inlet pipe, the upper end of the liquid inlet pipe is further provided with a liquid inlet, and the side end of the vacuumizing pipe is provided with a conical sealing piece. An annular clamping groove is formed in the inner wall of the liquid outlet pipe, a compression spring is arranged between the liquid outlet pipe and the liquid inlet pipe, a plurality of liquid separation mounting grooves are formed in the front end of the liquid outlet pipe, rotating shafts are arranged in the liquid separation mounting grooves, liquid separation blocks are rotationally connected to the rotating shafts downwards, and the liquid separation blocks are hinged to a pushing shaft. After gas in a bottle is pumped away through the vacuumizing pipe, the canning head moves downwards, the vacuumizing pipe moves downwards, the pushing shaft moves downwards and pushes the liquid separation block to move outwards to the direction facing the inner side wall of the bottle, then canning is started, liquid moves towards the inner side wall of the bottle along the liquid separation block and slowly flows down, and bubbles are effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of canning equipment, in particular to a liquid separation type negative pressure canning head. Background Art

[0002] The negative pressure filling machine is a machine that first evacuates the packaging container to form negative pressure, and then fills the liquid into the packaging container. The advantage is that the manufacturing error of the packaging container can be ignored. Because it is quantitatively measured by liquid level, good consistency in the appearance of the filling liquid level can be obtained, which is most suitable for glass bottle filling.

[0003] The negative pressure filling head in the prior art, for example, the Chinese patent application publication number CN105197863A discloses a filling head of a negative pressure filling machine, including a filling tube, a bottle mouth sealing gasket, a vacuum tube, a valve core, a connecting nut, a guide sleeve, a vent tube, a spring and a guide sealing ring, the upper end of the vacuum tube is connected to the lower end of the valve core, the vent tube is sleeved on the inner wall of the valve core, the guide sleeve is sleeved on the outer wall of the valve core, the connecting nut is sleeved on the outer wall of the guide sleeve, the bottle mouth sealing gasket is sleeved on the outer wall of the guide sleeve, the filling tube is penetrated through the inner walls of the vacuum tube and the vent tube; the spring is installed on the outer wall of the upper end of the vacuum tube, and the installation of the spring extends to the outer wall of the connecting nut; the liquid outlet at the lower end of the filling tube protrudes from the air suction port at the lower end of the vacuum tube.

[0004] Since the above-mentioned canning head lacks a liquid separation device, the liquid impacts the bottom of the bottle during filling, which easily generates bubbles in the glass bottle. These bubbles will rise rapidly in the bottle, affecting the final canning quality. Utility Model Content

[0005] Purpose of the utility model:

[0006] In order to overcome the problems existing in the prior art, the utility model provides a liquid separation type negative pressure canning head, which solves the problem that the prior art lacks a liquid separation device, and when filling, the liquid impacts the bottom of the bottle, which easily generates bubbles in the glass bottle. These bubbles will quickly rise in the bottle, affecting the final canning quality.

[0007] In order to solve the above problems, the utility model adopts the following technical solutions:

[0008] A liquid separation type negative pressure canning head, comprising a coaxially arranged liquid inlet pipe, a liquid outlet pipe and a vacuum pipe, wherein the vacuum pipe is fixedly connected to the liquid inlet pipe, the front end of the liquid outlet pipe extends to the outer end of the liquid inlet pipe, the front end of the vacuum pipe extends to the outer end of the liquid outlet pipe, the side end of the liquid inlet pipe is provided with an air inlet channel connected to the vacuum pipe, the upper end of the liquid inlet pipe is also provided with a liquid inlet, the side end of the vacuum pipe is provided with a conical seal whose diameter gradually increases toward the liquid outlet direction, the inner wall of the liquid outlet pipe is provided with an annular clamping groove adapted to the conical seal, and the inner diameter of the annular clamping groove is The diameter gradually increases toward the liquid outlet direction, the liquid outlet pipe is slidably connected to the liquid inlet pipe and a compression spring is arranged between the two for interference fit of the conical seal and the annular clamping groove, a plurality of liquid separation installation grooves are provided at the front end of the liquid outlet pipe, one end of the liquid separation installation groove close to the front end and the center of the liquid outlet pipe is open, a rotating shaft perpendicular to the diameter of the liquid outlet pipe is arranged in the liquid separation installation groove, a liquid separation block is connected to the rotating shaft for downward rotation, and the liquid separation block is hinged with a driving shaft hinged to the vacuum tube for changing the direction of the liquid separation block as the liquid outlet pipe and the vacuum tube move relative to each other.

[0009] Preferably, the angle between the liquid separation block and the liquid outlet direction is between 0° when the conical seal and the annular clamping groove are in interference fit and 70° when the distance between the conical seal and the annular clamping groove is maximum.

[0010] Preferably, the angle between the liquid separation block and the driving shaft is between 10° and 45°.

[0011] Preferably, an annular liquid guiding block is provided at the front end of the vacuum tube, and the diameter of the annular liquid guiding block gradually increases toward the liquid outlet direction.

[0012] Preferably, an annular groove is formed at the outer end of the conical seal, and a first sealing ring is installed in the annular groove and is interference-fitted with the conical seal and the annular clamping groove.

[0013] Preferably, an annular mounting groove is formed on the outer wall of the liquid outlet pipe, and a second sealing ring which is interference-fitted with the liquid outlet pipe and the liquid inlet pipe is installed in the annular mounting groove.

[0014] Preferably, the outer wall of the liquid inlet pipe is recessed inwardly near the liquid outlet end to provide a first mounting groove, the tube body of the liquid outlet pipe extending out of the liquid inlet pipe is recessed inwardly near the liquid inlet end to provide a second mounting groove, and the compression spring is installed between the first mounting groove and the second mounting groove.

[0015] Beneficial effects: Compared with the prior art, the utility model has the following advantages:

[0016] 1. By setting the liquid separator block and the driving shaft, after the vacuum tube completes the extraction of gas in the bottle, the canning head moves downward, the vacuum tube moves downward relative to the liquid outlet pipe, the driving shaft moves downward and drives the liquid separator block outward toward the inner wall of the bottle, and then the canning starts. The liquid moves along the liquid separator block toward the inner wall of the bottle and flows down slowly, effectively reducing the generation of bubbles.

[0017] 2. The angle between the liquid separation block and the driving shaft is between 10° and 45°, so that the driving shaft also plays a role in guiding the liquid, directing the liquid to the liquid separation block to prevent the liquid from falling directly from the middle of the liquid outlet pipe.

[0018] 3. An annular liquid guide block is provided at the front end of the vacuum tube to guide the liquid falling from the middle to the side end of the bottle, further reducing the generation of bubbles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0021] Figure 3 It is an enlarged view of the liquid separation block of the utility model;

[0022] Figure 4 This is a schematic diagram of the connection between the liquid separation block and the driving shaft of the utility model;

[0023] Description of reference numerals:

[0024] 1. Liquid inlet pipe; 11. Air inlet channel; 12. Liquid inlet port; 2. Liquid outlet pipe; 21. Annular clamping groove; 22. Liquid separator installation groove; 24. Liquid separator block; 25. Push shaft; 3. Vacuum tube; 31. Conical sealing element; 32. Annular liquid guide block; 4. Compression spring; 5. First sealing ring; 6. Second sealing ring. DETAILED DESCRIPTION

[0025] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0026] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other alternative features that are equivalent or have similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-4 As shown, a liquid separation type negative pressure canning head comprises a coaxially arranged liquid inlet pipe 1, a liquid outlet pipe 2 and a vacuum pipe 3, wherein the vacuum pipe 3 is fixedly connected to the liquid inlet pipe 1, the front end of the liquid outlet pipe 2 extends to the outer end of the liquid inlet pipe 1, the front end of the vacuum pipe 3 extends to the outer end of the liquid outlet pipe 2, the side end of the liquid inlet pipe 1 is provided with an air inlet channel 11 connected with the vacuum pipe 3, the upper end of the liquid inlet pipe 1 is also provided with a liquid inlet port 12, the side end of the vacuum pipe 3 is provided with a conical sealing member 31 whose diameter gradually increases toward the liquid outlet direction, the inner wall of the liquid outlet pipe 2 is provided with an annular clamping groove 21 adapted to the conical sealing member 31, and the inner wall of the annular clamping groove is provided with an annular clamping groove 21 adapted to the conical sealing member 31. The diameter gradually increases toward the liquid outlet direction, the liquid outlet pipe 2 is slidably connected to the liquid inlet pipe 1 and a compression spring 4 is arranged between the two for interference fit of the conical seal 31 and the annular clamping groove 21, a plurality of liquid separator installation grooves 22 are provided at the front end of the liquid outlet pipe 2, and one end of the liquid separator installation groove 22 close to the front end and the center of the liquid outlet pipe 2 is open, and a rotating shaft perpendicular to the diameter of the liquid outlet pipe is arranged in the liquid separator installation groove 22, and a liquid separator block 24 is connected to the rotating shaft for downward rotation, and the liquid separator block 24 is hinged with a driving shaft 25 hinged to the vacuum tube 3 for changing the direction of the liquid separator block 24 as the liquid outlet pipe 2 and the vacuum tube 3 move relative to each other.

[0029] By setting the liquid separator block and the driving shaft, after the vacuum tube completes extracting the gas in the bottle, the canning head moves downward, the vacuum tube moves downward relative to the liquid outlet pipe, the driving shaft moves downward and drives the liquid separator block to move outward toward the inner wall of the bottle, and then the canning starts. The liquid moves along the liquid separator block toward the inner wall of the bottle and flows down slowly, which effectively reduces the generation of bubbles.

[0030] In this embodiment, the angle between the liquid separation block 24 and the liquid outlet direction is between 0° when the conical seal 31 and the annular clamping groove 21 are interference fit and 70° when the distance between the conical seal 31 and the annular clamping groove 21 is maximum.

[0031] In this embodiment, the angle between the liquid separation block 24 and the driving shaft 25 is between 10° and 45°, so that the driving shaft also plays a role in guiding the liquid to the liquid separation block to prevent the liquid from falling directly from the middle of the liquid outlet pipe.

[0032] In this embodiment, the front end of the vacuum tube 3 is provided with an annular liquid guide block 32, and the diameter of the annular liquid guide block 32 gradually increases toward the liquid outlet direction. With this structure, the liquid falling from the middle is guided toward the side end of the bottle, further reducing the generation of bubbles.

[0033] In this embodiment, an annular groove is formed at the outer end of the conical seal 31 , and a first sealing ring 5 is installed in the annular groove and is interference-fitted with the conical seal 31 and the annular clamping groove 21 .

[0034] In this embodiment, an annular installation groove is formed on the outer wall of the liquid outlet pipe 2, and a second sealing ring 6 which is interference-fitted with the liquid outlet pipe 2 and the liquid inlet pipe is installed in the annular installation groove.

[0035] In this embodiment, the outer wall of the liquid inlet pipe 1 is recessed inwardly near the liquid outlet end to provide a first installation groove, the tube body of the liquid outlet pipe 2 extending out of the liquid inlet pipe is recessed inwardly near the liquid inlet end to provide a second installation groove, and the compression spring 4 is installed between the first installation groove and the second installation groove.

[0036] Working principle: the cylinder (not shown in the figure) drives the canning head to move toward the canning bottle, and the front end of the liquid outlet pipe is against the bottle mouth. At this time, the conical seal 31 and the annular clamping groove 21 are in an interference fit state under the elastic force of the compression spring, and the liquid will not flow from the liquid inlet pipe to the liquid outlet pipe. The air pump (not shown in the figure) evacuates the bottle through the vacuum tube to make the bottle reach a certain negative pressure state. Then the cylinder drives the canning head to continue to move toward the canning bottle, squeezing the compression spring, and the vacuum tube moves downward relative to the liquid outlet pipe. At this time, the driving shaft moves downward and drives the liquid separator block to move outward toward the inner wall of the bottle. The conical seal 31 and the annular clamping groove 21 also just separate the liquid for canning to start, and the liquid moves along the liquid separator block toward the inner wall of the bottle.

[0037] The purpose of the above embodiments is to exemplarily reproduce and deduce the technical solution of the utility model, and to fully describe the technical solution, purpose and effect of the utility model. Its purpose is to make the public understand the disclosed content of the utility model more thoroughly and comprehensively, and it does not limit the protection scope of the utility model.

[0038] The above embodiments are not exhaustive enumerations based on the present invention, and there may be multiple other implementations not listed. Any replacement and improvement made without violating the concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A liquid separation type negative pressure canning head, characterized in that: The invention comprises a coaxially arranged liquid inlet pipe (1), a liquid outlet pipe (2) and a vacuum pipe (3), wherein the vacuum pipe (3) is fixedly connected to the liquid inlet pipe (1), the front end of the liquid outlet pipe (2) extends to the outer end of the liquid inlet pipe (1), the front end of the vacuum pipe (3) extends to the outer end of the liquid outlet pipe (2), the side end of the liquid inlet pipe (1) is provided with an air inlet channel (11) connected to the vacuum pipe (3), the upper end of the liquid inlet pipe (1) is also provided with a liquid inlet port (12), the side end of the vacuum pipe (3) is provided with a conical sealing member (31) whose diameter gradually increases toward the liquid outlet direction, the inner wall of the liquid outlet pipe (2) is provided with an annular clamping groove (21) adapted to the conical sealing member (31), the inner diameter of the annular clamping groove increases toward the liquid outlet direction, and the inner diameter of the annular clamping groove increases toward the liquid outlet direction. The diameter of the liquid outlet pipe (2) gradually increases, the liquid outlet pipe (2) is slidably connected to the liquid inlet pipe (1), and a compression spring (4) is arranged between the two for interference fit of the conical sealing member (31) and the annular clamping groove (21), a plurality of liquid separation installation grooves (22) are provided at the front end of the liquid outlet pipe (2), one end of the liquid separation installation groove (22) close to the front end and the center of the liquid outlet pipe (2) is open, a rotating shaft perpendicular to the diameter of the liquid outlet pipe is arranged in the liquid separation installation groove (22), a liquid separation block (24) is connected to the rotating shaft for downward rotation, and the liquid separation block (24) is hinged with a driving shaft (25) hinged with the vacuum tube (3) for changing the direction of the liquid separation block (24) as the liquid outlet pipe (2) and the vacuum tube (3) move relative to each other.

2. The liquid separation type negative pressure canning head according to claim 1, characterized in that: The angle between the liquid separation block (24) and the liquid outlet direction is between 0° when the conical seal (31) and the annular clamping groove (21) are interference fit and 70° when the distance between the conical seal (31) and the annular clamping groove (21) is maximum.

3. A liquid separation type negative pressure canning head according to claim 1 or 2, characterized in that: The angle between the liquid separation block (24) and the driving shaft (25) is between 10° and 45°.

4. A liquid separation type negative pressure canning head according to claim 1 or 2, characterized in that: An annular liquid guiding block (32) is provided at the front end of the vacuum tube (3), and the diameter of the annular liquid guiding block (32) gradually increases towards the liquid outlet direction.

5. The liquid separation type negative pressure canning head according to claim 1, characterized in that: An annular groove is formed at the outer end of the conical sealing member (31), and a first sealing ring (5) is installed in the annular groove and is interference-fitted with the conical sealing member (31) and the annular clamping groove (21).

6. The liquid separation type negative pressure canning head according to claim 1, characterized in that: The outer wall of the liquid outlet pipe (2) is provided with an annular installation groove, and a second sealing ring (6) is installed in the annular installation groove, which is interference-fitted with the liquid outlet pipe (2) and the liquid inlet pipe.

7. The liquid separation type negative pressure canning head according to claim 1, characterized in that: The outer wall of the liquid inlet pipe (1) is recessed inwardly near the liquid outlet end to form a first mounting groove, the body of the liquid outlet pipe (2) extending out of the liquid inlet pipe is recessed inwardly near the liquid inlet end to form a second mounting groove, and the compression spring (4) is installed between the first mounting groove and the second mounting groove.

Images