Filling needle for sucking back foam on liquid filling machine

Abstract

The utility model relates to the technical field of liquid filling, in particular to a filling needle head for sucking back foam on a liquid filling machine, which comprises a needle head body, the needle head body is arranged at the bottom of a plurality of filling branch heads, the filling branch heads are communicated with a filling tank body through hoses, a filling bottle is arranged below the needle head body, and the filling bottle is connected with the filling tank body through a hose. A detachable elastic rubber sleeve is arranged on the outer side of the needle head body in a sleeving mode, a groove is formed in the inner side wall of the elastic rubber sleeve, and the top of the groove is communicated with a negative pressure generating device, a foam recycling device used for recycling foam and an oil recycling device used for recycling edible oil through a defoaming device. According to the filling needle head for sucking back the foam on the liquid filling machine, the foam in a filling bottle can be quickly sucked back, extrusion defoaming is carried out, and oil foam separation and recovery are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid filling, in particular to a filling needle for reabsorbing foam on a liquid filling machine. Background Art

[0002] When edible oil is being filled, more or less foam will appear depending on the flow rate of the edible oil. This not only affects the closing of the bottle cap, but also affects the appearance of the bottle if foam overflows when the cap is snapped on. Therefore, the foam problem must be solved during filling. Currently, most filling equipment uses a back-suction needle to solve this problem. For example, in the utility model patent with authorization announcement number CN215794613 U, an air bag is used in conjunction with a back-suction needle to suck out the foam in the filling bottle. However, this method requires manual pressing and compressing of the air bag. If there is a lot of foam, the air bag needs to be pressed and compressed continuously, which is time-consuming and labor-intensive. Moreover, it can only suck out the foam but cannot eliminate it. When the storage box is full of foam, even if the foam is pressed, the foam will not be sucked out of the filling bottle again, and it may even be squeezed back into the filling bottle. Therefore, this technical solution cannot solve the problem of filling a large amount of foam and requiring rapid back-suction.

[0003] In summary, the existing technology has obvious inconveniences and defects in actual use, so it is necessary to improve it. Utility Model Content

[0004] In view of the above-mentioned defects, the purpose of the present invention is to provide a filling needle for re-absorbing foam on a liquid filling machine, which can quickly re-absorb the foam in the filling bottle and squeeze it to defoam, thereby realizing oil foam separation and recovery.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a filling needle for reabsorbing foam on a liquid filling machine, comprising a needle body, wherein the needle body is installed at the bottom of a filling branch head, a plurality of filling branches are provided and are connected to a filling tank body through a hose, a filling bottle is placed under the needle body, the outer side of the needle body is provided with a detachable elastic rubber sleeve, the inner side wall of the elastic rubber sleeve is provided with a groove, and the top of the groove is respectively connected to a negative pressure generating device, a foam recovery device for recovering foam, and an oil recovery device for recovering edible oil through a defoaming device.

[0006] As an optimal technical solution, a liquid inlet chamber and a back-foam chamber are provided in the needle body, the bottom of the liquid inlet chamber is connected to a liquid inlet head, the bottom of the back-foam chamber is connected to a back-foam head, and the length of the liquid inlet head is greater than the length of the back-foam head; a plurality of back-foam holes are provided on the needle body, and the plurality of back-foam holes are located on the side where the back-foam chamber is located.

[0007] As a preferred technical solution, multiple back foam holes are arranged vertically from top to bottom.

[0008] As a preferred technical solution, the position of the elastic rubber sleeve on the needle body is adjustable.

[0009] As a preferred technical solution, a marking line is provided on the needle body and below the back-foam hole.

[0010] As a preferred technical solution, the defoaming device includes a rectangular shell, in which a defoaming cylinder is arranged. The defoaming cylinder is provided with an inlet on one side and an outlet on the other side; a first support plate is provided at the lower edge of the inlet, and a second support plate is provided at the lower edge of the outlet.

[0011] As a preferred technical solution, the first support plate is a solid panel, and the second support plate is provided with a plurality of oil leakage holes.

[0012] As a preferred technical solution, the second support plate is arranged at an angle.

[0013] As a preferred technical solution, a plurality of rotating blades are provided in the defoaming cylinder, and a defoaming cavity is formed between adjacent rotating blades. The rotating blades are driven to rotate by a micro motor; the ends of the rotating blades are in rotational contact with the inner wall of the defoaming cylinder.

[0014] As an optimal technical solution, each of the negative pressure generating device, foam recovery device and negative pressure generating device is provided with one; the elastic rubber sleeve corresponding to the needle body connected to each filling head is connected to the same negative pressure generating device, the same foam recovery device and the same oil recovery device.

[0015] The utility model provides a filling needle for sucking back foam on a liquid filling machine, which can quickly suck back foam in a filling bottle and squeeze it to eliminate foam, thereby realizing oil foam separation and recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a filling needle for reabsorbent foam on a liquid filling machine of the present invention;

[0017] Figure 2 This is a structural diagram of the elastic rubber sleeve covering the entire back-foam head;

[0018] Figure 3 This is a schematic diagram of the structure of the elastic rubber sleeve covering part of the back-foam head;

[0019] Figure 4 is a bottom view of the needle body;

[0020] Figure 5 It is a schematic diagram of the connection between the elastic rubber sleeve and the defoaming device;

[0021] Figure 6 Schematic diagram of the internal structure of the needle body;

[0022] Figure 7 It is a structural schematic diagram of the defoaming device;

[0023] Figure 8 It is a structural diagram of the defoaming cylinder;

[0024] Figure 9 This is a structural diagram of the defoaming cylinder from another perspective;

[0025] In the picture:

[0026] 1-Filling tank body, 2-Filling splitter, 3-Needle body, 31-Elastic rubber sleeve, 301-Liquid inlet chamber, 302-Back foam chamber, 310-Groove, 32-Back foam head, 33-Liquid inlet head, 34-Back foam hole, 35-Marking line, 4-Filling bottle, 5-Defoaming device, 51-Defoaming cylinder, 52-Rotating blade, 53-Cylinder inlet, 54-Cylinder outlet, 55-Defoaming chamber, 56-Filter layer, 57-First support plate, 58-Second support plate, 59-Oil collecting tank, 6-Back foam pipe, 7-Oil return pipe, 8-Negative pressure generating device, 9-Foam recovery device, 10-Oil recovery device. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] Example 1:

[0029] See also Figure 1 The present invention provides a filling needle for reabsorbent foam on a liquid filling machine. The needle comprises a needle body 3 mounted at the bottom of a filling manifold 2. Multiple filling manifolds 2 may be provided, each connected to a filling tank 1 via a flexible hose. A filling bottle 4 is placed beneath the needle body 3. The outer diameter of an elastic rubber sleeve 31 matches the inner diameter of the bottle opening of the filling bottle 4, providing a seal. The appropriate elastic rubber sleeve 31 can be selected based on the diameter of the bottle opening of the filling bottle 4.

[0030] See also Figure 1 、 Figures 4 to 6 The outer side of the needle body 3 is provided with a detachable elastic rubber sleeve 31, and the inner side wall of the elastic rubber sleeve 31 is provided with a groove 310. The top of the groove 310 is connected to a negative pressure generating device 8, a foam recovery device 9 for recovering foam, and an oil recovery device 10 for recovering edible oil through a defoaming device 5.

[0031] The needle body 3 is provided with a liquid inlet chamber 301 and a back-foam chamber 302. The bottom of the liquid inlet chamber 301 is connected to a liquid inlet head 33, and the bottom of the back-foam chamber 302 is connected to a back-foam head 32. The length of the liquid inlet head 33 is greater than the length of the back-foam head 32. The needle body 3 is provided with a plurality of back-foam holes 34, which are located on one side of the back-foam chamber 302 and are arranged vertically from top to bottom.

[0032] See also Figure 2 and Figure 3 The position of the elastic rubber sleeve 31 over the needle body 3 is adjustable. Depending on the characteristics of the edible oil being filled and whether it easily generates foam, the elastic rubber sleeve 31 can be selected to cover some or all of the return foam holes 34. If the edible oil easily generates foam and quick foam removal is required, the elastic rubber sleeve 31 can be arranged to cover all of the return foam holes 34, allowing all of the return foam holes 34 to simultaneously discharge foam. Conversely, only some of the return foam holes 34 are required to discharge foam.

[0033] A marking line 35 is provided on the needle body 3 below the back-foam hole 34 to warn of the bottommost position of the elastic rubber sleeve 31 .

[0034] See also Figures 7 to 9 The defoaming device 5 includes a rectangular shell, and a shell inlet is provided on one side of the shell, and the shell inlet is connected to the elastic rubber sleeve 31; a shell outlet is provided on the shell and on the opposite side of the shell inlet, and the shell outlet is connected to the foam recovery device 9 through the back foam pipe 6; a negative pressure connection port is provided on the top of the shell, and the negative pressure connection port is connected to the negative pressure generating device 8, and at least two layers of filter layers 56 are provided at the negative pressure connection port to prevent foam from entering the negative pressure generating device 8; a shell oil outlet is provided on the bottom of the shell and on the side close to the shell outlet, and the shell oil outlet is connected to the oil recovery device 10 through the oil collecting tank 59 and the return oil pipe 7.

[0035] The housing houses a defoaming cylinder 51, which has an inlet 53 on one side and an outlet 54 on the other. A first support plate 57, formed of a solid panel, is located at the lower edge of the inlet 53. A second support plate 58, formed with several oil holes, is located at the lower edge of the outlet 54. Preferably, the second support plate 58 can be tilted to facilitate the flow of cooking oil into the oil collection tank 59.

[0036] A plurality of rotating blades 52 are provided in the defoaming cylinder 51, and defoaming cavities 55 are formed between adjacent rotating blades 52. The rotating blades 52 are driven to rotate by a micro motor. The ends of the rotating blades 52 are in rotational contact with the inner wall of the defoaming cylinder 51. When a certain defoaming cavity 55 is located at the cylinder inlet 53, the defoaming cavity 55 is connected to the filling bottle 4 and the groove 310 in the elastic rubber sleeve 31 and the pressure is the same; when a certain defoaming cavity 55 is located at the cylinder outlet 54, the defoaming cavity 55 is connected to the foam recovery device 9 and the oil recovery device 10 and the pressure is equal; when a certain defoaming cavity 55 is located between the cylinder inlet 53 and the cylinder outlet 54, the defoaming cavity 55 plays a sealing role, which can effectively isolate the air pressure at both ends of the cylinder inlet 53 and the cylinder outlet 54, and can perform defoaming as the rotating blades 52 rotate. In actual applications, there are generally two or three defoaming cavities 55 communicating with the barrel inlet 53 , and there are generally one or two defoaming cavities 55 communicating with the barrel outlet 54 .

[0037] The negative pressure generating device 8, the foam recovery device 9 and the negative pressure generating device 8 are each provided with one. The elastic rubber sleeve 31 corresponding to the needle body 3 connected to each filling tap 2 is connected to the same negative pressure generating device 8, the same foam recovery device 9 and the same oil recovery device 10.

[0038] During operation, depending on whether the batch of edible oil being filled is prone to foaming, the elastic rubber sleeve 31 is placed on the outer side of the needle body 3 so that the elastic rubber sleeve 31 covers part or all of the back-foam holes 34, and the groove 310 in the elastic rubber sleeve 31 is aligned with the back-foam holes 34, so that the groove 310 is connected to the back-foam holes 34. The defoaming device 5 is connected to the elastic rubber sleeve 31 via a hose. During filling, the filling branch 2 corresponds to filling multiple filling bottles 4 respectively, the liquid inlet head 33 and the back foam head 32 are located in the filling bottles 4, and the elastic rubber sleeve 31 plays the role of sealing the filling bottles 4. The edible oil is injected into the filling bottles 4 through the filling tank body 1, the filling branch 2, the liquid inlet cavity 301, and the liquid inlet head 33. When the highest critical point of the edible oil is reached, the filling is stopped. During the filling process and after the filling is stopped, the foam generated is squeezed and defoamed by the negative pressure generated by the negative pressure generating device 8 through the back foam head 32, the back foam cavity 302, the back foam hole 34, the groove 310, and the defoaming device 5. In the defoaming device 5, the rotating blade 52 is driven to rotate by an external micro motor, thereby squeezing and defoaming the foam. The generated edible oil flows to the oil recovery device 10 through the oil leakage hole on the second support plate 58. The remaining foam after squeezing is recovered to the foam recovery device 9.

[0039] The utility model provides a filling needle for sucking back foam on a liquid filling machine, which can quickly suck back foam in the filling bottle and squeeze it to eliminate foam, thereby realizing oil foam separation and recovery.

[0040] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A filling needle for reabsorbent foam on a liquid filling machine, comprising a needle body (3), the needle body (3) being mounted at the bottom of a filling manifold (2), the filling manifolds (2) being provided in plurality and all being connected to a filling tank (1) via a hose, a filling bottle (4) being placed below the needle body (3), characterized in that: The outer side of the needle body (3) is provided with a detachable elastic rubber sleeve (31), the inner side wall of the elastic rubber sleeve (31) is provided with a groove (310), and the top of the groove (310) is respectively connected to a negative pressure generating device (8), a foam recovery device (9) for recovering foam, and an oil recovery device (10) for recovering edible oil through a defoaming device (5).

2. The filling needle for reabsorb foam on a liquid filling machine according to claim 1, characterized in that: A liquid inlet cavity (301) and a back-foam cavity (302) are provided in the needle body (3); the bottom of the liquid inlet cavity (301) is connected to a liquid inlet head (33); the bottom of the back-foam cavity (302) is connected to a back-foam head (32); the length of the liquid inlet head (33) is greater than the length of the back-foam head (32); and a plurality of back-foam holes (34) are provided on the needle body (3), and the plurality of back-foam holes (34) are located on one side of the back-foam cavity (302).

3. The filling needle for reabsorb foam on a liquid filling machine according to claim 2, characterized in that: A plurality of back foam holes (34) are arranged vertically from top to bottom.

4. The filling needle for reabsorb foam on a liquid filling machine according to claim 1, characterized in that: The position of the elastic rubber sleeve (31) sleeved on the needle body (3) is adjustable.

5. The filling needle for reabsorb foam on a liquid filling machine according to claim 1, characterized in that: A marking line (35) is provided on the needle body (3) and below the back-foam hole (34).

6. A filling needle for reabsorb foam on a liquid filling machine according to any one of claims 1 to 5, characterized in that: The defoaming device (5) comprises a rectangular shell, a defoaming cylinder (51) is arranged in the shell, a cylinder inlet (53) is arranged on one side of the defoaming cylinder (51) and a cylinder outlet (54) is arranged on the other side; a first support plate (57) is arranged at the lower edge of the cylinder inlet (53), and a second support plate (58) is arranged at the lower edge of the cylinder outlet (54).

7. The filling needle for reabsorb foam on a liquid filling machine according to claim 6, characterized in that: The first support plate (57) is a solid panel, and the second support plate (58) is provided with a plurality of oil leakage holes.

8. The filling needle for reabsorb foam on a liquid filling machine according to claim 7, characterized in that: The second supporting plate (58) is arranged tilted.

9. The filling needle for reabsorb foam on a liquid filling machine according to claim 6, characterized in that: A plurality of rotating blades (52) are provided in the defoaming cylinder (51), and a defoaming cavity (55) is formed between adjacent rotating blades (52). The rotating blades (52) are driven to rotate by a micro motor; the ends of the rotating blades (52) are in rotational contact with the inner wall of the defoaming cylinder (51).

10. The filling needle for reabsorb foam on a liquid filling machine according to claim 9, characterized in that: The negative pressure generating device (8), the foam recovery device (9) and the negative pressure generating device (8) are each provided with one; the elastic rubber sleeve (31) corresponding to the needle body (3) connected to each filling tap (2) is connected to the same negative pressure generating device (8), the same foam recovery device (9) and the same oil recovery device (10).

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