Single-drive multi-pump-head filling device

Abstract

The utility model discloses a single-drive multi-pump-head filling device which comprises a supporting bottom plate, a vertically-arranged driving device and a plurality of transversely-arranged pump bodies are fixed to the supporting bottom plate, and liquid inlets and liquid outlets are formed in the pump bodies. The driving device is in transmission connection with a transversely-arranged ball screw through a planetary reducer, a sliding block capable of moving in the axial direction of the ball screw is assembled on the ball screw, connecting shafts with the number corresponding to that of the pump bodies are connected to the sliding block, and the connecting shafts are in transmission connection with plungers in the pump bodies through couplings. The utility model has the advantages that the structure is simple and reasonable, and the plurality of pump heads are simultaneously driven by one driving device, so that the synchronism of the plurality of liquid outlets during filling can be ensured; in addition, the driving device is vertically arranged, so that the structure is more compact, and the whole filling device is prevented from being too long.

Description

Technical Field

[0001] The utility model relates to the technical field of filling equipment, in particular to a single-drive multi-pump head filling device. Background Art

[0002] Many industries, such as the pharmaceutical industry, food industry, and pharmaceutical industry, have filling processes in their production processes, and metering pumps are generally used to transport liquids during the filling process. A metering pump is driven by a drive device to drive a plunger to reciprocate, that is, a single-drive single-pump head structure is used. In this way, when multiple containers are filled at the same time, multiple metering pumps are required to work together to complete the filling task, and the equipment investment cost is high. In addition, it is difficult to ensure the synchronization of filling when multiple metering pumps are used for filling, which will have a certain impact on the transportation of containers and the packaging of products. Utility Model Content

[0003] The purpose of the utility model is to make up for the above-mentioned deficiencies and disclose to the public a single-drive multi-pump head filling device which has a simple and reasonable structure and can simultaneously complete the filling of multiple containers.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A single-drive multi-pump head filling device includes a supporting base plate, on which a vertically arranged driving device and a plurality of horizontally arranged pump bodies are fixed, the pump bodies are provided with a liquid inlet and a liquid outlet, the driving device is transmission-connected to a horizontally arranged ball screw through a planetary reducer, the ball screw is equipped with a slider that can move axially along the ball screw, the slider is connected to a corresponding number of connecting shafts as the pump bodies, and the connecting shaft is transmission-connected to a plunger in the pump body through a coupling.

[0006] The measures to further optimize this technical solution are:

[0007] As an improvement, linear guide rails are respectively arranged on both sides of the ball screw, and the slider is slidably matched with the linear guide rails. The linear guide rails play a guiding role, making the slider move more smoothly.

[0008] As an improvement, the coupling is a cross coupling, which includes a pair of coupling blocks and a cross block. The cross block includes a base body, and connecting pins are respectively arranged on four sides of the base body. Connecting arms are arranged on the coupling blocks, and the connecting pins are slidably matched with the connecting arms. After assembly, a gap is left between the inner surface of the connecting arm and the base body of the cross block. After assembly, a gap is left between the inner surface of the connecting arm and the base body of the cross block, enabling the connecting pins and the connecting arms to slide relative to each other. Through the sliding fit, there is a certain adjustment range when connecting two shafts, and the connecting shaft and the connecting arm perform translational sliding, which can ensure the parallelism after installation and improve the transmission efficiency.

[0009] As an improvement, an assembly hole is arranged on the connecting arm, and a bushing is arranged between the assembly hole and the connecting pin. The setting of the bushing can improve the wear resistance and sliding smoothness between the connecting pin and the assembly hole.

[0010] As an improvement, the connecting arm and the coupling block are detachably matched. Positioning pins are arranged on the connecting arms, and corresponding positioning holes are arranged on the coupling blocks. Through the cooperation of the positioning pins and the positioning holes, the assembly between the connecting arm and the coupling block is facilitated.

[0011] As an improvement, a limit block for restricting the displacement of the slider is fixed on the support base plate. Through the setting of the limit block, the maximum displacement of the slider is restricted to prevent the slider from deviating from the designed stroke.

[0012] As an improvement, the liquid inlet is arranged at the lower part of the pump body, the liquid outlet is arranged at the upper part of the pump body, and a U-shaped liquid outlet pipe is connected to the liquid outlet.

[0013] As an improvement, the planetary reducer is fixed on the reducer support seat.

[0014] As an improvement, a protective cover is fixed outside the slider and the pump body, and a maintenance observation window is arranged on the protective cover.

[0015] As an improvement, handles are fixed on both sides of the support base plate. The setting of the handles facilitates the overall handling of the filling device.

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

[0017] The single-drive multi-pump head filling device of the present utility model has a simple and reasonable structure. It is driven by a single driving device to drive multiple pump heads simultaneously, which can ensure the synchronism during multi-liquid outlet filling. In addition, the driving device is vertically arranged, making the structure more compact and avoiding the overlong length of the entire filling device. Description of the Drawings

[0018] Figure 1is the top view structure diagram of the present utility model;

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

[0020] Figure 3 is the top view structure diagram of the present utility model after installing the protective cover;

[0021] Figure 4 is the three-dimensional structure diagram of the cross coupling of the present utility model;

[0022] Figure 5 is the front view of the cross coupling of the present utility model;

[0023] Figure 6 is Figure 5 the sectional view of A-A in

[0024] Figure 7 is the exploded view of the cross coupling of the present utility model.

[0025] The names of the reference numerals in the drawings of the present utility model are:

[0026] supporting bottom plate 1, limiting block 11, handle 12, driving device 2, pump body 3, liquid inlet 3a, liquid outlet 3b, U-shaped liquid outlet pipe 3c, plunger 31, planetary reducer 4, reducer support seat 41, ball screw 5, slider 6, connecting shaft 61, linear guide rail 62, coupling block 7, positioning hole 7a, connecting arm 71, assembly hole 71a, positioning pin 71b, cross block 8, gap 8a, base body 81, connecting shaft pin 82, shaft sleeve 82a, protective cover 9, maintenance observation window 91. Detailed implementation manners

[0027] The present utility model will be further described in detail below with reference to the drawings:

[0028] 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.

[0029] Those skilled in the art should understand that in the disclosure of this utility model, the orientations or positions indicated by terms such as "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 this 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 limitations on this utility model.

[0030] 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 an element can be one, while in other embodiments, the number of this element can be multiple. The term "one" should not be construed as a limitation on the quantity.

[0031] As Figures 1 to 7 shown, a single-drive multi-pump head filling device includes a support base plate 1. A vertically arranged driving device 2 and several horizontally arranged pump bodies 3 are fixed on the support base plate 1. An inlet 3a and an outlet 3b are arranged on the pump body 3. The driving device 2 is in transmission connection with a horizontally arranged ball screw 5 through a planetary reducer 4. A slider 6 capable of moving along the axial direction of the ball screw 5 is assembled on the ball screw 5. A connecting shaft 61 corresponding to the number of pump bodies 3 is connected to the slider 6. The connecting shaft 61 is in transmission connection with a plunger 31 in the pump body 3 through a coupling.

[0032] In this embodiment, the support base plate 1 is provided with 5 pump bodies 3, and the driving device 2 is a motor. The filling device of this utility model has a simple and reasonable structure. It uses one driving device 2 to drive multiple pump heads 3 simultaneously, forming a single-drive multi-pump head structure, which can ensure the synchronism during multi-outlet filling. In addition, the driving device 2 is vertically arranged, making the structure more compact and avoiding the excessive length of the entire filling device.

[0033] Linear guide rails 62 are respectively arranged on both sides of the ball screw 5. The slider 6 is in sliding fit with the linear guide rails 62. The setting of the linear guide rails 62 can reduce the sliding friction force and make the movement of the slider 6 smoother.

[0034] The coupling is a cross coupling. The cross coupling includes a pair of coupling blocks 7 and a cross block 8. The cross block 8 includes a base body 81. Connecting pins 82 are respectively arranged on four sides of the base body 81. Connecting arms 71 are arranged on the coupling blocks 7. The connecting pins 82 are in slidable fit with the connecting arms 71. After assembly, a gap 8a is left between the inner surface of the connecting arm 71 and the base body 81 of the cross block 8.

[0035] An assembly hole 71a is provided on the connecting arm 71, and a bushing 82a is provided between the assembly hole 71a and the connecting shaft pin 82. The bushing 82a is made of brass material and has good wear resistance. The setting of the bushing 82a can not only improve the wear resistance but also enhance the smoothness of the sliding between the connecting shaft pin 82 and the connecting arm 71.

[0036] The connecting arm 71 is detachably fitted with the coupling block 7. Positioning pins 71b are provided on the connecting arm 71, and corresponding positioning holes 7a are provided on the coupling block 7. The cooperation between the positioning pin 71b and the positioning hole 7a facilitates the assembly between the connecting arm 71 and the coupling block 7.

[0037] After the above-mentioned cross coupling is assembled, there is a gap 8a between the inner surface of the connecting arm 71 and the base 81 of the cross block 8. That is to say, the relative positions between the two coupling blocks 7 can be adjusted within a certain range, which enables the positions of the two shafts to have a certain adjustment range, making the connection and assembly more convenient. Due to the existence of the gap 8a, the coupling block 7 and the cross block 8 can slide relative to each other, making it have a certain degree of adjustability. However, the coupling block 7 and the cross block 8 perform translational sliding, which can ensure the parallelism between the two shafts, reduce the waste of work, and improve the transmission efficiency.

[0038] A limit block 11 for restricting the displacement of the slider 6 is fixed on the support base plate 1.

[0039] The liquid inlet 3a is provided at the lower part of the pump body 3, the liquid outlet 3b is provided at the upper part of the pump body 3, and a U-shaped liquid outlet pipe 3c is connected to the liquid outlet 3b. The adoption of the U-shaped liquid outlet pipe 3c enables a container to pass under the outlet of the liquid outlet pipe 3c, making the structure of the entire filling device more compact.

[0040] The planetary reducer 4 is fixed on the reducer support seat 41. The setting of the reducer support seat 41 facilitates the installation of the planetary reducer 4.

[0041] A protective cover 9 is fixed outside the slider 6 and the pump body 3, and a maintenance observation window 91 is provided on the protective cover 9. The protective cover 9 plays a protective role, and the maintenance observation window 91 is convenient for observation and maintenance. The maintenance observation window 91 can be covered with a transparent cover plate.

[0042] Handles 12 are fixed on both sides of the support base plate 1. The setting of the handles 12 facilitates the overall handling of the filling device.

[0043] The above are only the preferred embodiments of the present utility model, and do not limit the implementation manners and protection scope of the present utility model. For those skilled in the art, it should be realized that all the solutions obtained by equivalent replacements and obvious changes made by using the description and illustrations of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A single-drive multi-pump filling device, comprising a supporting base plate (1), characterized in that: A vertically arranged driving device (2) and a plurality of horizontally arranged pump bodies (3) are fixed on the supporting base plate (1); a liquid inlet (3a) and a liquid outlet (3b) are arranged on the pump body (3); the driving device (2) is connected to a horizontally arranged ball screw (5) through a planetary reducer (4); the ball screw (5) is equipped with a slider (6) capable of moving axially along the ball screw (5); the slider (6) is connected to a corresponding number of connecting shafts (61) as the pump body (3); the connecting shaft (61) is connected to a plunger (31) in the pump body (3) through a coupling.

2. A single-drive multi-pump head filling device according to claim 1, characterized in that: Linear guide rails (62) are respectively arranged on both sides of the ball screw (5), and the sliding block (6) is slidably matched with the linear guide rails (62).

3. A single-drive multi-pump head filling device according to claim 2, characterized in that: The coupling is a cross coupling, comprising a pair of coupling blocks (7) and a cross block (8), wherein the cross block (8) comprises a base (81), and connecting shaft pins (82) are respectively arranged on four sides of the base (81), and a connecting arm (71) is arranged on the coupling block (7), and the connecting shaft pin (82) and the connecting arm (71) can be slidably matched; after assembly, a gap (8a) is left between the inner surface of the connecting arm (71) and the base (81) of the cross block (8).

4. A single-drive multi-pump head filling device according to claim 3, characterized in that: The connecting arm (71) is provided with an assembly hole (71a), and a shaft sleeve (82a) is provided between the assembly hole (71a) and the connecting shaft pin (82).

5. A single-drive multi-pump head filling device according to claim 4, characterized in that: The connecting arm (71) and the coupling block (7) are detachably matched, and a positioning pin (71b) is provided on the connecting arm (71), and a positioning hole (7a) is correspondingly provided on the coupling block (7).

6. A single-drive multi-pump head filling device according to any one of claims 1 to 5, characterized in that: A limiting block (11) for limiting the displacement of the sliding block (6) is fixed on the supporting bottom plate (1).

7. A single-drive multi-pump head filling device according to claim 6, characterized in that: The liquid inlet (3a) is arranged at the lower part of the pump body (3), the liquid outlet (3b) is arranged at the upper part of the pump body (3), and the liquid outlet (3b) is connected to a U-shaped liquid outlet pipe (3c).

8. The single-drive multi-pump head filling device according to claim 7 is characterized in that: The planetary reducer (4) is fixed on a reducer support seat (41).

9. The single-drive multi-pump head filling device according to claim 8, characterized in that: A protective cover (9) is fixed outside the sliding block (6) and the pump body (3), and a maintenance observation window (91) is provided on the protective cover (9).

10. A single-drive multi-pump head filling device according to claim 9, characterized in that: Handles (12) are fixed on both sides of the supporting base plate (1).

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