Self-cleaning multi-pump precision metering filling equipment

Abstract

The utility model discloses self-cleaning multi-pump precision metering and filling equipment which comprises a rack, the metering and filling equipment is provided with a material inlet and a material outlet, the rack is provided with a plurality of plunger pumps, the material inlet is connected with the corresponding plunger pumps through a flow dividing block, the metering and filling equipment is further provided with a cleaning liquid outlet, and the material outlet is connected with the plunger pumps through a flow dividing block. A cleaning channel can be formed between the material inlet and the cleaning liquid outlet; the plunger pump comprises a shell, a ceramic plunger is arranged in the shell, and a ceramic sleeve is arranged between the ceramic plunger and the shell. The filling machine has the advantages that the structure is reasonable, the filling efficiency can be improved by arranging the multiple sets of plunger pumps, meanwhile, the online cleaning pipeline is designed, parts do not need to be disassembled during cleaning, and the cleaning efficiency can be greatly improved. In the plunger pump, the two ceramic parts, namely the ceramic plunger and the ceramic sleeve, are coupled and assembled to form sealing, so that a sealing part between the ceramic plunger and the ceramic sleeve can be omitted, parts are reduced, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing metering filling equipment, and particularly relates to a self-cleaning multi-pump precision metering filling equipment. Background Art

[0002] In the production processes of many industries such as the food industry and the pharmaceutical industry, there are filling processes. At present, some manufacturers use peristaltic pumps for liquid injection filling, but there are problems such as low accuracy of material transportation and inability to accurately control metering.

[0003] In addition, some other manufacturers use metering pumps for filling. The metering pump has the advantages of simple structure and accurate metering. However, since the materials transported by the metering filling equipment will adhere to the equipment, resulting in inaccurate metering, it is necessary to clean the equipment regularly. For the existing metering filling equipment, it is necessary to disassemble the equipment during cleaning, which is troublesome to operate, time-consuming and laborious, and affects the production efficiency. Therefore, the existing metering filling equipment needs to be further improved. Summary of the Utility Model

[0004] The purpose of the utility model is to make up for the above deficiencies and disclose to the society a self-cleaning multi-pump precision metering filling equipment with reasonable structure, convenient assembly and cleaning, and capable of improving production efficiency.

[0005] The technical solution of the utility model is realized as follows:

[0006] A self-cleaning multi-pump precision metering filling equipment includes a frame. The metering filling equipment is provided with a material inlet and a material outlet. A plurality of plunger pumps are arranged on the frame. The material inlet is connected to the corresponding plunger pump through a flow dividing block. The metering filling equipment is also provided with a cleaning liquid outlet. A cleaning channel can be formed between the material inlet and the cleaning liquid outlet. The plunger pump includes a housing, a ceramic plunger is arranged in the housing, and a ceramic sleeve is arranged between the ceramic plunger and the housing.

[0007] The measures for further optimizing the technical solution are as follows:

[0008] As an improvement, the lower end of the ceramic plunger is connected to a floating joint, and the floating joint is fixed on a plunger pump mounting plate driven by a driving device to lift and lower.

[0009] As an improvement, the specific structure of the driving device for driving the plunger pump mounting plate to lift and lower is: the driving device is connected to a transmission lead screw, a lifting block restricted from rotating is screwed on the lead screw, and the plunger pump mounting plate is connected to the lifting block. By driving the driving device to drive the plunger pump mounting plate to lift and lower, the floating joint fixed on the plunger pump mounting plate can be connected to the corresponding plunger pump.

[0010] As an improvement, a connecting plate is arranged on the lifting block, and a connecting column passing through the frame is arranged between the connecting plate and the plunger pump mounting plate.

[0011] As an improvement, the number of the connecting columns is two, and the two connecting columns are symmetrically arranged on both sides of the lead screw.

[0012] As an improvement, a linear bearing is arranged on the frame, and the connecting column passes through the linear bearing. Arranging the linear bearing can reduce the friction force when the connecting column moves and improve the smoothness of movement.

[0013] As an improvement, the material inlet is connected to the material confluence pipe, the material confluence pipe is connected to the corresponding shunt block through a diaphragm valve, and material outlets are arranged on the shunt blocks.

[0014] As an improvement, the plunger pump is connected to the cleaning confluence pipe, and the cleaning liquid outlet is arranged on the cleaning confluence pipe. Arranging the cleaning confluence pipe enables the collected cleaning liquid to be discharged after cleaning, which can simplify the complexity of pipeline layout.

[0015] As an improvement, the plunger pumps are arranged in two parallel rows front and back.

[0016] The advantages of the present utility model compared with the prior art are:

[0017] The self-cleaning multi-pump precision metering and filling equipment of the present utility model has a reasonable structure. It is provided with multiple groups of plunger pumps, which can improve the filling efficiency. At the same time, an on-line cleaning pipeline is designed. During cleaning, there is no need to disassemble the components, which can greatly improve the cleaning efficiency. In the plunger pump, the coupling assembly between two ceramic parts, namely the ceramic plunger and the ceramic sleeve, forms a seal, which can eliminate the seal between them, reduce the components, and lower the maintenance cost. Description of the Drawings

[0018] Figure 1 is the front view of the present utility model;

[0019] Figure 2 is the sectional structure view of the present utility model;

[0020] Figure 3 is Figure 2 the enlarged view of part A in

[0021] Figure 4 is Figure 1 the sectional structure view of the plunger pump in

[0022] The names of the reference numerals in the drawings of the present utility model are:

[0023] Frame 1, material inlet 1a, material outlet 1b, cleaning liquid outlet 1c, plunger pump 2, housing 21, ceramic plunger 22, ceramic sleeve 23, flow dividing block 3, floating joint 41, driving device 42, plunger pump mounting plate 43, lead screw 44, lifting block 45, connecting plate 45a, connecting column 46, linear bearing 47, material confluence pipe 5, diaphragm valve 51, cleaning confluence pipe 6. Detailed implementation

[0024] The present utility model will be further described in detail below with reference to the accompanying drawings:

[0025] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious deformations. The basic principles defined in the following description can be used in other implementation schemes, deformation schemes, improvement schemes, equivalent schemes, and other technical schemes that do not depart from the spirit and scope of the present utility model.

[0026] Those skilled in the art should understand that in the disclosure of the present utility model, the orientations or positions indicated by the terms "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or position relationships shown in the drawings. It is only for the convenience of simplifying the description of the present utility model, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present utility model.

[0027] It can 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 one component can be one, and in other embodiments, the number of this component can be multiple. The term "one" should not be construed as a limitation on the number.

[0028] As Figures 1 to 4 shown, a self-cleaning multi-pump precision metering and filling device includes a frame 1. The metering and filling device is provided with a material inlet 1a and a material outlet 1b. A plurality of plunger pumps 2 are provided on the frame 1. The material inlet 1a is connected to the corresponding plunger pump 2 through a flow dividing block 3. The metering and filling device is further provided with a cleaning liquid outlet 1c. A cleaning channel can be formed between the material inlet 1a and the cleaning liquid outlet 1c. The plunger pump 2 includes a housing 21. A ceramic plunger 22 is provided in the housing 21. A ceramic sleeve 23 is provided between the ceramic plunger 22 and the housing 21.

[0029] The metering and filling equipment of the present utility model uses the cooperation of a ceramic plunger 22 and a ceramic sleeve 23 in the plunger pump 2. The coupling assembly between the two ceramic parts is used to achieve sealing, eliminating the sealing parts between the two, which can reduce the number of components, lower the assembly difficulty, and save maintenance costs at the same time.

[0030] In this embodiment, the plunger pumps 2 are arranged in two parallel rows, front and back. There are 6 plunger pumps 2 in each row. That is to say, when the metering and filling equipment is running, 12 plunger pumps 2 work simultaneously, which can improve the filling efficiency.

[0031] The lower end of the ceramic plunger 22 is connected to the floating joint 41, and the floating joint 41 is fixed on the plunger pump mounting plate 43 that is driven to move up and down by the driving device 42.

[0032] The specific structure of the driving device 42 for driving the plunger pump mounting plate 43 to move up and down is as follows: The driving device 42 is connected to the transmission lead screw 44. A lifting block 45 that is restricted from rotating is screwed on the lead screw 44, and the plunger pump mounting plate 43 is connected to the lifting block 45. The driving device 42 is preferably a servo motor.

[0033] A connecting plate 45a is arranged on the lifting block 45, and a connecting column 46 passing through the frame 1 is arranged between the connecting plate 45a and the plunger pump mounting plate 43.

[0034] The number of the connecting columns 46 is two; the two connecting columns 46 are symmetrically arranged on both sides of the lead screw 44.

[0035] A linear bearing 47 is arranged on the frame 1, and the connecting column 46 passes through the linear bearing 47. The setting of the linear bearing 47 can reduce the friction force when the connecting column 46 moves, making its movement smoother.

[0036] The material inlet 1a is connected to the material confluence pipe 5. The material confluence pipe 5 is connected to the corresponding flow dividing block 3 through a diaphragm valve 51, and material outlets 1b are arranged on each of the flow dividing blocks 3.

[0037] The plunger pump 2 is connected to the cleaning confluence pipe 6, and the cleaning liquid outlet 1c is arranged on the cleaning confluence pipe 6. The setting of the cleaning confluence pipe 6 enables the cleaning liquid after cleaning to be collected and then discharged, which can simplify the complexity of pipeline layout.

[0038] Working principle:

[0039] During the working state: the diaphragm valve 51 is opened, the driving device 42 is started, the lead screw 44 is driven to rotate through the synchronous belt, so that the lifting block 45 descends. The lifting block 45 is linked with the plunger pump mounting plate 43 through the connecting plate 45a and the connecting column 46, so that the floating joint 41 descends, and then drives the ceramic plunger 22 to descend, forming a certain pressure difference in the plunger pump 2. The material is sucked into the plunger pump 2 from the material inlet 1a through the material manifold 5 and the diaphragm valve 51. When the set amount is reached, the driving device 42 stops, and the diaphragm valve 51 is closed simultaneously. The driving device 42 rotates in the reverse direction, so that the lifting block 45 rises, the ceramic plunger 22 rises, and the material in the plunger pump 2 is discharged from the material outlet 1b and sent to the downstream liquid injection device to complete the metering and conveying of the material.

[0040] During the cleaning state: the driving device 42 drives the ceramic plunger 22 to descend to the lowest end, so that the ceramic plunger 22 forms a seal with the bottom of the housing 21 of the plunger pump 2 (a conical part is provided on the ceramic plunger 22).

[0041] The cleaning liquid enters the storage tank in the form of high pressure to wash the storage tank, and then enters the flow dividing block 3 of the metering and filling device from the material inlet 1a. The cleaning liquid is divided into two paths at the flow dividing block 3. One path enters the inner cavity of the pump body of the plunger pump 2 for cleaning and finally enters the cleaning manifold 6 from the cleaning outlet and is discharged from the cleaning liquid outlet 1c. The other path enters the liquid injection device from the material outlet 1b, cleans the liquid injection device, and then is discharged.

[0042] The above is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be able to realize that all the equivalent replacements and obvious changes made by using the description and illustration content of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-cleaning multi-pump precision metering filling device, comprising a frame (1), wherein the metering filling device is provided with a material inlet (1a) and a material outlet (1b), and wherein: The frame (1) is provided with a plurality of plunger pumps (2); the material inlet (1a) is connected to the corresponding plunger pump (2) via a diverter block (3); the metering filling device is further provided with a cleaning liquid outlet (1c); a cleaning channel can be formed between the material inlet (1a) and the cleaning liquid outlet (1c); the plunger pump (2) comprises a housing (21); a ceramic plunger (22) is provided in the housing (21); a ceramic sleeve (23) is provided between the ceramic plunger (22) and the housing (21).

2. The self-cleaning multi-pump precision metering filling equipment according to claim 1 is characterized by: The lower end of the ceramic plunger (22) is connected to a floating joint (41), and the floating joint (41) is fixed on a plunger pump mounting plate (43) driven to rise and fall by a driving device (42).

3. The self-cleaning multi-pump precision metering filling equipment according to claim 2 is characterized by: The specific structure of the driving device (42) driving the plunger pump mounting plate (43) to rise and fall is as follows: the driving device (42) is connected to a transmission screw (44), a lifting block (45) whose rotation is restricted is screwed onto the screw (44), and the plunger pump mounting plate (43) is connected to the lifting block (45).

4. The self-cleaning multi-pump precision metering filling equipment according to claim 3 is characterized by: A connecting plate (45a) is provided on the lifting block (45), and a connecting column (46) passing through the frame (1) is provided between the connecting plate (45a) and the plunger pump mounting plate (43).

5. The self-cleaning multi-pump precision metering filling equipment according to claim 4 is characterized in that: The number of the connecting columns (46) is two; Two connecting columns (46) are symmetrically arranged on both sides of the lead screw (44).

6. The self-cleaning multi-pump precision metering filling equipment according to claim 5 is characterized by: The frame (1) is provided with a linear bearing (47), and the connecting column (46) is arranged through the linear bearing (47).

7. The self-cleaning multi-pump precision metering filling equipment according to claim 6 is characterized by: The material inlet (1a) is connected to a material manifold (5), and the material manifold (5) is connected to a corresponding diverter block (3) via a diaphragm valve (51), and the diverter block (3) is provided with a material outlet (1b).

8. The self-cleaning multi-pump precision metering filling equipment according to claim 7 is characterized by: The plunger pump (2) is connected to the cleaning manifold (6), and the cleaning liquid outlet (1c) is arranged on the cleaning manifold (6).

9. The self-cleaning multi-pump precision metering filling equipment according to claim 8 is characterized by: The plunger pumps (2) are arranged in two parallel rows.

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