Multi-pump precision metering filling equipment with online cleaning function

Abstract

The utility model discloses multi-pump precision metering filling equipment with an on-line cleaning function, which comprises a rack, a plurality of groups of plunger pumps are arranged on the rack, each plunger pump is provided with a liquid inlet, a liquid outlet, a cleaning liquid inlet and a cleaning liquid outlet, an upper plunger and a lower plunger are arranged in each plunger pump, and the upper plunger and the lower plunger are arranged on the rack. A notch is formed in the upper plunger, an upper driving device for controlling the upper plunger to move up and down and a lower driving device for controlling the lower plunger to move up and down are arranged on the machine frame, and a rotation driving device for controlling the upper plunger to rotate is further arranged on the machine frame. The filling device has the advantages that the structure is reasonable, and the filling efficiency can be improved by arranging the multiple sets of plunger pumps; meanwhile, an on-line cleaning pipeline is designed, during on-line cleaning, the lower plunger moves upwards, cleaning liquid enters from a cleaning liquid inlet, and after the parts are cleaned, the cleaning liquid is discharged from a cleaning liquid outlet.

Description

Technical Field

[0001] The utility model relates to the technical field of metering and filling equipment manufacturing, in particular to a multi-pump precision metering and filling equipment with an online cleaning function. Background Art

[0002] Many industries, such as the food industry and the pharmaceutical industry, have filling procedures in their production processes. Currently, some manufacturers use peristaltic pumps for liquid filling, but for more viscous and less fluid materials, there will be problems with low accuracy and inability to control metering.

[0003] In addition, some manufacturers use metering pumps for filling. Metering pumps have the advantages of simple structure and accurate measurement. However, due to the viscosity of the liquid being filled, some of the liquid will adhere to the equipment, resulting in inaccurate measurement, so the equipment needs to be cleaned regularly. The existing metering filling equipment needs to be disassembled for cleaning, which is troublesome, time-consuming and labor-intensive, and affects production efficiency. Therefore, the existing metering filling equipment needs to be further improved. Utility Model Content

[0004] The purpose of the utility model is to make up for the above-mentioned deficiencies and disclose to the public a multi-pump precision metering filling equipment with an online cleaning function which has a reasonable structure, is easy to clean and improves production efficiency.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A multi-pump precision metering filling equipment with an online cleaning function comprises a frame, on which are arranged a plurality of groups of plunger pumps, each of which is provided with a liquid inlet, a liquid outlet, a cleaning liquid inlet and a cleaning liquid outlet, an upper plunger and a lower plunger are arranged in the plunger pump, a notch is arranged on the upper plunger, an upper driving device for controlling the upper plunger to move up and down and a lower driving device for controlling the lower plunger to move up and down are arranged on the frame, and a rotation driving device for controlling the rotation of the upper plunger is also arranged on the frame.

[0007] The measures to further optimize this technical solution are:

[0008] As an improvement, the upper driving device is connected to a synchronous frame, the upper end of the upper plunger is connected to a synchronous shaft through a coupling, and the synchronous shaft is assembled on the synchronous frame.

[0009] As an improvement, a synchronous wheel is arranged on the synchronous shaft, a synchronous belt is arranged on the synchronous wheel, and the rotation driving device is fixed on the synchronous frame and controls the rotation of the synchronous wheel.

[0010] The rotation driving device drives the upper plunger to rotate synchronously through a synchronous belt, thereby realizing the synchronous action of multiple plunger pumps.

[0011] As an improvement, the cleaning liquid outlet is connected to the cleaning liquid manifold, and the cleaning liquid manifold is provided with a discharge port. When the cleaning liquid is discharged, it is first collected in the cleaning liquid manifold and then discharged, which simplifies the pipe layout.

[0012] As an improvement, the specific structure of the lower driving device controlling the up and down movement of the lower plunger is: the lower driving device includes a servo motor driving the lead screw to rotate, a lifting block is screwed on the lead screw, a floating head mounting plate is connected to the lifting block, and a floating head connected to the lower plunger is provided on the floating head mounting plate.

[0013] As an improvement, guide posts are provided on the frame, and the floating head mounting plate is slidably matched with the guide posts.

[0014] As an improvement, a linear bearing is provided between the floating head mounting plate and the guide column.

[0015] As an improvement, rollers are arranged at the bottom of the frame, which facilitates the movement of the entire filling device.

[0016] As an improvement, the top of the frame is provided with a lifting lug, which facilitates the lifting of the entire filling device.

[0017] The advantages of the utility model compared with the prior art are:

[0018] The utility model discloses a multi-pump precision metering filling equipment with an online cleaning function, which has a reasonable structure and is provided with multiple groups of plunger pumps, thereby improving the filling efficiency. At the same time, an online cleaning pipeline is designed. During online cleaning, the lower plunger moves upward, and the cleaning liquid enters from the cleaning liquid inlet, and is discharged from the cleaning liquid outlet after cleaning the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the utility model;

[0020] Figure 2 It is a cross-sectional structural diagram of the utility model;

[0021] Figure 3 yes Figure 2 Enlarged view of part A in the middle;

[0022] Figure 4 This is a working state diagram of the plunger pump of the utility model;

[0023] Figure 5 This is a cleaning state diagram of the plunger pump of the utility model.

[0024] The names of the reference numerals in the accompanying drawings of the present utility model are:

[0025] Frame 1, guide column 11, linear bearing 12, roller 13, lifting ear 14, plunger pump 2, liquid inlet 2a, liquid outlet 2b, cleaning liquid inlet 2c, cleaning liquid outlet 2d, upper plunger 21, notch 21a, lower plunger 22, upper drive device 3, lower drive device 4, screw 41, servo motor 42, lifting block 43, floating head mounting plate 44, floating head 45, rotation drive device 5, synchronous frame 6, coupling 61, synchronous shaft 62, synchronous wheel 63, synchronous belt 64, cleaning liquid manifold 7, discharge port 7a. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below with reference to the accompanying drawings:

[0027] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be used for other implementation schemes, variations, improvements, equivalent schemes, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0028] Those skilled in the art should understand that, in the disclosure of the present invention, the directions or positions indicated by the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, which are only simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0029] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0030] like Figures 1 to 5 As shown, a multi-pump precision metering filling equipment with an online cleaning function includes a frame 1, on which a plurality of groups of plunger pumps 2 are arranged, each of which is provided with a liquid inlet 2a, a liquid outlet 2b, a cleaning liquid inlet 2c and a cleaning liquid outlet 2d, an upper plunger 21 and a lower plunger 22 are arranged in the plunger pump 2, and a notch 21a is arranged on the upper plunger 21, and an upper driving device 3 for controlling the upper plunger 21 to move up and down and a lower driving device 4 for controlling the lower plunger 22 to move up and down are arranged on the frame 1, and a rotation driving device 5 for controlling the upper plunger 21 to rotate is also arranged on the frame 1.

[0031] In this embodiment, five plunger pumps 2 are arranged side by side on the frame 1. The plunger pump 2 is provided with a liquid inlet 2a and a liquid outlet 2b to form a liquid infusion channel; the plunger pump 2 is also provided with a cleaning liquid inlet 2c and a cleaning liquid outlet 2d to form an online cleaning channel.

[0032] The upper driving device 3 is connected to a synchronous frame 6 , and the upper end of the upper plunger 21 is connected to a synchronous shaft 62 through a coupling 61 , and the synchronous shaft 62 is assembled on the synchronous frame 6 .

[0033] The synchronous shaft 62 is provided with a synchronous wheel 63 , and the synchronous wheel 63 is provided with a synchronous belt 64 . The rotation driving device 5 is fixed on the synchronous frame 6 and controls the synchronous wheel 63 to rotate.

[0034] The upper driving device 3 mentioned above is preferably an electric cylinder.

[0035] The upper plungers 21 of the five plunger pumps 2 are synchronously controlled by the upper drive device 3 and the rotation drive device 5. Specifically, the upper drive device 3 drives the synchronous frame 6 to move, and then drives the five upper plungers 21 to move up and down synchronously through the synchronous frame 6. When the upper plunger 21 rotates, the rotation drive device 5 provides power, drives the synchronous wheel 63 to rotate through the synchronous belt 64, and then drives the five upper plungers 21 to rotate synchronously.

[0036] The cleaning liquid outlet 2d is connected to the cleaning liquid manifold 7, and the cleaning liquid manifold 7 is provided with a discharge port 7a.

[0037] The specific structure of the lower driving device 4 controlling the up and down movement of the lower plunger 22 is as follows: the lower driving device 4 includes a servo motor 42 that drives the screw 41 to rotate, a lifting block 43 is screwed on the screw 41, a floating head mounting plate 44 is connected to the lifting block 43, and a floating head 45 connected to the lower plunger 22 is provided on the floating head mounting plate 44.

[0038] The frame 1 is provided with guide posts 11 , and the floating head mounting plate 44 is slidably matched with the guide posts 11 .

[0039] A linear bearing 12 is provided between the floating head mounting plate 44 and the guide column 11 .

[0040] The lower driving device 4 drives the lead screw 41 to rotate, so that the lifting block 43 moves up and down along the lead screw 41, thereby driving the floating head mounting plate 44 and the floating head 45 to move up and down, and then driving the lower plunger 22 connected to the floating head 45 to move up and down. The setting of the guide column 11 and the linear bearing 12 can improve the stability and smoothness of the up and down movement of the floating head mounting plate 44.

[0041] The bottom of the frame 1 is provided with rollers 13. The provision of the rollers 13 facilitates the movement of the entire filling device.

[0042] The top of the frame 1 is stacked with a lifting lug 14. The provision of the lifting lug 14 facilitates the lifting of the entire filling device.

[0043] Working principle:

[0044] like Figure 4 As shown, in the working state: the rotating driving device 5 drives the upper plunger 21 to rotate, so that the notch 21a on the upper plunger 21 is aligned with the liquid inlet 2a. At this time, the liquid inlet 2a is opened and the liquid outlet 2b is closed; then driven by the lower driving device 4, the lower plunger 22 descends, so that the liquid forms a certain pressure difference in the pump body, thereby achieving the suction of the liquid. After reaching the set amount of washing liquid, the lower plunger 22 stops descending. The rotating driving device 5 drives the upper plunger 21 to rotate, so that the notch 21a on the upper plunger 21 is aligned with the liquid outlet 2b. At this time, the liquid inlet 2a is closed and the liquid outlet 2b is opened; the lower plunger 22 rises under the drive of the lower driving device 4, and the liquid in the pump body is discharged from the liquid outlet 2b.

[0045] like Figure 5 As shown, in the cleaning state, the upper driving device 3 drives the upper plunger 21 to rise to the set position, and at the same time the lower driving device 4 drives the lower plunger 22 to rise to the set position, and then the cleaning liquid enters from the cleaning liquid inlet 2c to clean the inner cavity, the upper plunger 21 and the lower plunger 22, and then the cleaning liquid flows out from the cleaning liquid outlet 2d, enters the cleaning liquid manifold 7, and then is uniformly discharged from the discharge port 7a into the waste barrel.

[0046] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-pump precision metering filling device with online cleaning function, comprising a frame (1), characterized in that: The frame (1) is provided with a plurality of groups of plunger pumps (2), each of which is provided with a liquid inlet (2a), a liquid outlet (2b), a cleaning liquid inlet (2c) and a cleaning liquid outlet (2d). An upper plunger (21) and a lower plunger (22) are provided in the plunger pump (2), and a notch (21a) is provided on the upper plunger (21). The frame (1) is provided with an upper driving device (3) for controlling the upper plunger (21) to move up and down, and a lower driving device (4) for controlling the lower plunger (22) to move up and down. The frame (1) is also provided with a rotation driving device (5) for controlling the upper plunger (21) to rotate.

2. According to claim 1, a multi-pump precision metering filling equipment with online cleaning function is characterized by: The upper driving device (3) is connected to a synchronous frame (6), the upper end of the upper plunger (21) is connected to a synchronous shaft (62) via a coupling (61), and the synchronous shaft (62) is assembled on the synchronous frame (6).

3. The multi-pump precision metering filling equipment with online cleaning function according to claim 2 is characterized in that: The synchronous shaft (62) is provided with a synchronous wheel (63), the synchronous wheel (63) is provided with a synchronous belt (64), and the rotation driving device (5) is fixed on the synchronous frame (6) and controls the rotation of the synchronous wheel (63).

4. The multi-pump precision metering filling equipment with online cleaning function according to claim 3 is characterized by: The cleaning liquid outlet (2d) is connected to the cleaning liquid manifold (7), and the cleaning liquid manifold (7) is provided with a discharge outlet (7a).

5. The multi-pump precision metering filling equipment with online cleaning function according to claim 4 is characterized in that: The specific structure of the lower driving device (4) controlling the lower plunger (22) to move up and down is as follows: the lower driving device (4) includes a servo motor (42) driving a lead screw (41) to rotate, a lifting block (43) is screwed onto the lead screw (41), a floating head mounting plate (44) is connected to the lifting block (43), and a floating head (45) connected to the lower plunger (22) is provided on the floating head mounting plate (44).

6. The multi-pump precision metering filling equipment with online cleaning function according to claim 5 is characterized by: The frame (1) is provided with a guide column (11), and the floating head mounting plate (44) is slidably matched with the guide column (11).

7. The multi-pump precision metering filling equipment with online cleaning function according to claim 6 is characterized by: A linear bearing (12) is arranged between the floating head mounting plate (44) and the guide column (11).

8. The multi-pump precision metering filling equipment with online cleaning function according to any one of claims 1 to 7, characterized in that: The bottom of the frame (1) is provided with a roller (13).

9. The multi-pump precision metering filling equipment with online cleaning function according to claim 8 is characterized by: The top of the frame (1) is stacked with a lifting lug (14).

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