Peristaltic filling mechanism and split multi-head filling device

Abstract

The utility model relates to the technical field of filling devices, in particular to a peristaltic filling mechanism which comprises a peristaltic mechanism and a driving component, the peristaltic mechanism comprises a fixing seat, a pressing block and a rotating wheel, the pressing block is slidably mounted on the upper portion of the fixing seat, and the rotating wheel is rotatably mounted on the lower portion of the fixing seat. A plurality of rollers arranged at intervals are installed in the circumferential direction of the rotating wheel, the driving assembly is used for driving the rotating wheel to rotate, and a space used for pressing or loosening a hose is formed between the pressing block and the rotating wheel through sliding of the pressing block. The utility model further provides a column-type multi-head filling device, at least two groups of peristaltic filling mechanisms are mounted on a case, and the filling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filling device technical field, concretely is a kind of peristaltic filling mechanism and columned multihead filling device. BACKGROUND

[0002] Liquid filling is an important link in packaging industry and daily production, widely used in the production process of beverage, daily use chemical, medicine, food and other industries.Peristaltic pump as a new type of liquid conveying equipment, with the characteristics of no pollution, simple structure, wide application range, easy to maintain, fluid only with the inner wall of hose contact, avoid the pollution of pump internal parts to fluid, can transport various viscosity, contain solid particles and corrosive fluid.

[0003] The peristaltic pump filling currently adopted has the problems of poor liquid conveying stability, low filling efficiency, residual liquid in pipe, etc., and the residual liquid is easy to deteriorate in the pipe environment, affecting the quality of liquid during subsequent filling. SUMMARY

[0004] To solve the above problems, the utility model provides a kind of peristaltic filling mechanism, adopts peristaltic mode to realize filling, can realize stable delivery, and is provided with gas-liquid switching module to avoid liquid residue in pipe, and the technical scheme adopted by the utility model is as follows:

[0005] A kind of peristaltic filling mechanism, including peristaltic mechanism and drive assembly, the peristaltic mechanism includes fixed seat, press block and runner, the press block is slidably installed on the upper portion of fixed seat, the runner is rotatably installed on the lower portion of fixed seat, a plurality of interval arrangement's rollers are installed on the circumference of runner, the drive assembly is used to drive runner rotation, the space for pressing or loosening hose is formed between press block and runner by the sliding of press block.

[0006] The above-mentioned peristaltic filling mechanism further includes a gas-liquid switching module, the gas-liquid switching module includes a gas-liquid switching valve, the gas-liquid switching valve includes one liquid inlet, one liquid outlet and one air port, the liquid inlet is communicated with the container storing liquid, the liquid outlet is communicated with the hose, and the air port is used for air inlet.

[0007] The above-mentioned peristaltic filling mechanism, the eccentric wheel is installed on the fixed seat, the eccentric link is arranged on the eccentric wheel, the eccentric link is connected with the press block, the eccentric link is provided with a hand lever for rotating, and the press block is provided with a sliding groove for the movement of hand lever, the press block is slid relative to the fixed seat under the action of eccentric wheel by moving hand lever.

[0008] The peristaltic filling mechanism, one side or both sides of the pressing block are provided with upper pipe clamps, the upper ends of the upper pipe clamps are connected with springs, the springs are installed on the pressing block, the side of the upper pipe clamp is provided with a limiting block, the side of the pressing block is provided with a sliding hole matched with the limiting block, one side or both sides of the fixed seat are provided with lower pipe clamps matched with the upper pipe clamps, and the upper pipe clamps and the lower pipe clamps are matched to clamp or release the hose.

[0009] The peristaltic filling mechanism, the gas-liquid switching module further comprises a non-contact liquid level sensor which is installed close to the liquid inlet and is used for monitoring the liquid inlet state to feed back to the gas-liquid switching valve to make it act.

[0010] The peristaltic filling mechanism, a luer joint is installed on the liquid inlet, and an air filter is installed on the air inlet.

[0011] The utility model also relates to a kind of multihead filling device of column, set multiple peristaltic filling mechanisms, improve filling efficiency, and specific technical solutions are as follows:

[0012] A kind of multihead filling device of column, including cabinet, at least two groups of the peristaltic filling mechanism are installed on the cabinet.

[0013] The multihead filling device of column, control panel and power switch are equipped on the cabinet, grounding terminal, fan, control component and at least two groups of the driving assembly are equipped in the cabinet, the control component includes power supply, terminal row and PLC module, the driving assembly includes driver and motor, and the motor is connected driving runner through shaft coupling.

[0014] The utility model has the advantages of:

[0015] First, the peristaltic mechanism of the peristaltic filling mechanism adopts rotor and pressing block cooperation, can realize accurate and stable liquid delivery, and will not appear liquid flow breakage etc.

[0016] Second, the peristaltic filling mechanism is provided with gas-liquid switching module, can empty liquid in hose after filling, to avoid liquid residual problem.

[0017] Third, multiple peristaltic filling mechanisms are set, realize multihead filling of column, greatly improve filling efficiency, can simultaneously fill, also can independently fill, flexible and convenient, function is various, meet the demand of different working conditions. DETAILED DESCRIPTION

[0018] Figure 1 It is the overall appearance of the utility model embodiment schematic diagram;

[0019] Figure 2 It is the internal structure of the utility model embodiment schematic diagram.

[0020] Figure 3 It is the control module installation schematic view of the embodiment of the utility model;

[0021] Figure 4 It is the drive mechanism schematic view of the embodiment of the utility model;

[0022] Figure 5 It is the pump head mechanism schematic view of the embodiment of the utility model;

[0023] Figure 6 It is the pump head lateral section schematic view of the embodiment of the utility model;

[0024] Figure 7 It is the gas-liquid switching module structure schematic view of the embodiment of the utility model.

[0025] In the drawing: 1 is the case, 2 is the control screen, 3 is the power switch, 4 is the peristaltic mechanism, 5 is the gas-liquid switching module, 6 is the PLC module, 7 is the motor, 9 is the grounding terminal, 10 is the fan, 12 is the power supply, 13 is the terminal row, 15 is the driver, 17 is the hand lever, 18 is the coupling, 19 is the hose, 20 is the shell, 21 is the gas-liquid switching valve, 22 is the non-contact liquid level sensor, 23 is the luer connector, 24 is the air filter, 25 is the fixed seat, 26 is the runner, 27 is the roller, 28 is the eccentric wheel, 29 is the pressing block, 30 is the upper pipe clamp, 31 is the spring, 32 is the limit block, 33 is the sliding hole, 34 is the sliding groove. DETAILED DESCRIPTION

[0026] The technical scheme of the utility model will be described in detail below with reference to the drawings. The following embodiments are exemplary and are intended to provide further description of the present application. Unless otherwise specified, all technical terms used have the same meaning as understood by those skilled in the art to which the present application belongs. It should be noted that the terms used are only for the purpose of describing the specific embodiments and are not intended to limit the exemplary embodiments according to the present application.

[0027] Embodiment one

[0028] The present embodiment is a peristaltic filling mechanism, which comprises a peristaltic mechanism 4 and a drive assembly. Referring to Figure 5 , the peristaltic mechanism 4 comprises a fixed seat 25, a pressing block 29 and a runner 26. The pressing block 29 is slidably mounted on the upper part of the fixed seat 25, which can be referred to Figure 4, the sliding drive mode between the two can be selected by conventional means, such as various types of telescopic rod, screw nut, etc. The rotating wheel 26 is rotatably mounted on the lower part of the fixed seat 25, and a plurality of rollers 27 are arranged on the circumference of the rotating wheel 26. The rollers 27 can rotate on the rotating wheel 26, and the driving assembly is used to drive the rotating wheel 26 to rotate, and the space between the pressure block 29 and the rotating wheel 26 is formed by the sliding of the pressure block 29, which is used to press or loosen the hose 19. The hose 19 can be selected from commercially available ordinary hose or elastic hose commonly used in peristaltic pump, so that the hose 19 is pressed and loosened by the rollers 27, and the liquid in the hose 19 is transported by peristaltic action. Figure 5 The upper end of the hose 19 is the input port, and the lower end is the output port. The output port is connected to the filling container to be filled.

[0029] Reference Figure 5 When filling, the pressure block 29 slides downward and cooperates with the rollers 27 to press the hose 19. When the hose 19 contacts the rollers 27, it will be pressed tightly. Since the rollers 27 are arranged at intervals, as the rotating wheel 26 rotates, the hose 19 is in the original state (loose state) between two rollers 27, and the cycle is realized by peristaltic action.

[0030] In this embodiment, the eccentric mechanism is used to realize the sliding and fixing of the pressure block 29. The eccentric wheel 28 is installed on the fixed seat 25, and the eccentric connecting rod is arranged on the eccentric wheel 28. The eccentric connecting rod is connected with the pressure block 29, and the hand lever 17 is arranged on the eccentric connecting rod. The pressure block 29 is correspondingly provided with a sliding groove 34 for the movement of the hand lever 17. By moving the hand lever 17, the pressure block 29 slides relative to the fixed seat 25 under the action of the eccentric wheel 28. The interval between the pressure block 29 and the rotating wheel 26 can be adjusted according to the different specifications of the hose 19, which is flexible, convenient, simple in structure and low in cost.

[0031] The left and / or right side of the pressure block 29 is provided with an upper pipe clamp 30, and the upper end of the upper pipe clamp 30 is connected with a spring 31, which is installed on the pressure block 29. The side of the upper pipe clamp 30 is provided with a limiting block 32, and the side of the pressure block 29 is provided with a sliding hole 33 corresponding to the limiting block 32. One side or both sides of the fixed seat 25 corresponding to the upper pipe clamp 30 is provided with a lower pipe clamp, and the upper pipe clamp 30 cooperates with the lower pipe clamp to clamp or loosen the hose 19. In this way, during filling, the upper pipe clamp 30 can clamp the hose 19 with the sliding of the pressure block 29, and the clamping force under the action of the spring 31 will not be too large, so that the hose 19 will not be damaged, and the hose 19 can be further stabilized and limited, ensuring efficient and accurate peristaltic liquid conveying.

[0032] The above-mentioned peristaltic filling mechanism further comprises a gas-liquid switching module 5, which is shown in Figure 7The gas-liquid switching module 5 comprises a gas-liquid switching valve 21, which comprises a liquid inlet, a liquid outlet and an air inlet. The liquid outlet is connected to the hose 19, the liquid inlet is connected to the container storing the liquid, and the air inlet is used for air passage. A luer connector 23 is installed on the liquid inlet, and an air filter 24 is installed on the air inlet. When the liquid needs to pass through, the liquid inlet is communicated with the liquid outlet to realize the liquid delivery. When the filling is completed, the liquid cannot exist in the hose 19, and the valve core of the gas-liquid switching valve 21 is moved to communicate the air inlet with the liquid outlet. At this time, the peristaltic mechanism 4 still maintains the peristaltic liquid delivery state, and the liquid in the hose 19 continues to flow into the filling container until it is emptied. The gas-liquid switching valve 21 can be selected from commercially available two-position three-way electromagnetic valves. The embodiment is a flexible use of the common two-position three-way electromagnetic valve, and does not involve the change of the structure thereof.

[0033] Further, the gas-liquid switching module 5 further comprises a non-contact liquid level sensor 22, which can realize electrical automatic control. The non-contact liquid level sensor 22 is installed near the liquid inlet and is used for monitoring the liquid delivery state to feedback to the gas-liquid switching valve 21 to make it act.

[0034] Embodiment two

[0035] The embodiment is a split type multi-head filling device, which comprises a machine box 1. At least two groups of peristaltic filling mechanisms as in the embodiment one are installed on the machine box 1, which can improve the filling efficiency. According to the filling requirement, each group of peristaltic filling mechanisms can be used alone or simultaneously.

[0036] Reference Figures 1 to 4 The filling device can be electrically automatically controlled. The machine box 1 is provided with a control screen 2 and a power switch 3. The machine box 1 is provided with a grounding terminal 9, a fan 10, a control assembly and at least two groups of driving assemblies. The control assembly comprises a power supply 12, a terminal block 13, a driver 15 and a PLC module 6. The control assembly is used for cooperating with the control screen 2, the gas-liquid switching valve 21, the non-contact liquid level sensor 22 and the driving assembly. The driving assembly comprises a motor 7 and a coupling 18. The motor 7 is connected to the driving wheel 26 through the coupling 18. The detailed electrical control principle and control method adopt conventional technical methods. According to the required functions of the filling device, the electrical practitioners can realize it through the PLC, which does not exist technical obstacles. The embodiment is explained and described from the working process level of the filling device.

[0037] The present filling device can have two working scenarios: one is long-term uninterrupted filling, and the liquid can be kept in the hose 19 all the time, so the input port of the hose 19 can be directly communicated to the container storing the liquid, without passing through the gas-liquid switching module 5; the other is intermittent filling, and the liquid cannot be kept in the hose 19 after the filling of one stage is completed, so the input port of the hose 19 needs to be communicated with the gas-liquid switching module 5. The working process of the gas-liquid switching module 5 is as follows: during filling, the liquid inlet and the liquid outlet of the gas-liquid switching valve 21 are communicated, when the non-contact liquid level sensor 22 detects that the liquid flows, the PLC module 6 starts to calculate the liquid quantity, when the flowed liquid reaches the set quantity, the PLC module 6 controls the valve core of the gas-liquid switching valve 21 to move to communicate the air port with the liquid inlet, at this time the filling of the liquid is cut off, the rotating wheel 26 continues to rotate to keep the peristaltic conveying state, and the liquid in the hose 19 is continuously conveyed downward to the filling container until it is emptied.

[0038] Taking filling of a certain specific liquid as an example, the power switch 3 is pressed to start the device, the appropriate hose 19 is selected according to the properties of the liquid, and is installed on the peristaltic mechanism 4; the filling quantity of each group of peristaltic filling mechanisms is set to 400 ml, and the filling speed is set to 300 ml per minute through the control screen 2; the PLC module 6 receives the parameters of the control screen 2, processes and sends them to the driver 15, the driver 15 sends signals to the motor 7 to drive the rotating wheel 26 to rotate, the rotating wheel 26 drives the hose 19 to produce peristalsis, and the liquid is conveyed into the filling container; when the filling quantity reaches 400 ml, the filling is automatically stopped.

[0039] If different specifications of filling containers or different properties of liquids are used for each group of peristaltic filling mechanisms, the filling parameters can be set through the control screen 2. For example, a smaller specification of filling container is used for a group of peristaltic filling mechanisms, and the filling speed can be reduced, the PLC module 6 drives the corresponding driver 15, and the driver 15 controls the motor 7 to reach the required lower speed to complete the filling. For larger specifications of filling containers, the speed of the motor 7 can be increased in the same way to speed up the filling.

Claims

1. A peristaltic filling mechanism, characterized by: The peristaltic mechanism (4) comprises a fixed seat (25), a pressing block (29) and a rotating wheel (26), the pressing block (29) is slidably installed on the upper part of the fixed seat (25), the rotating wheel (26) is rotatably installed on the lower part of the fixed seat (25), a plurality of rollers (27) are arranged on the circumference of the rotating wheel (26), and the driving assembly is used for driving the rotating wheel (26) to rotate.

2. A peristaltic filling mechanism according to claim 1, characterised in that: The gas-liquid switching module (5) further comprises a non-contact liquid level sensor (22) installed near the liquid inlet for monitoring the liquid inlet state to feedback to the gas-liquid switching valve (21) to make it act.

3. A peristaltic filling mechanism according to claim 1, wherein: The fixed seat (25) is provided with an eccentric wheel (28), the eccentric wheel (28) is provided with an eccentric connecting rod, the eccentric connecting rod is connected with the pressing block (29), the eccentric connecting rod is provided with a rotating hand lever (17), and the pressing block (29) is correspondingly provided with a sliding groove (34) for the movement of the hand lever (17).

4. The peristaltic fill mechanism of claim 1, wherein: One side or both sides of the pressing block (29) are provided with an upper pipe clamp (30), the upper end of the upper pipe clamp (30) is connected with a spring (31), the spring (31) is installed on the pressing block (29), the side of the upper pipe clamp (30) is provided with a limiting block (32), the side of the pressing block (29) is provided with a sliding hole (33) corresponding to the limiting block (32), and the side or both sides of the fixed seat (25) are provided with a lower pipe clamp corresponding to the upper pipe clamp (30).

5. A peristaltic filling mechanism according to claim 2, wherein: The gas-liquid switching module (5) further comprises a non-contact liquid level sensor (22) installed near the liquid inlet for monitoring the liquid inlet state to feedback to the gas-liquid switching valve (21) to make it act.

6. A peristaltic filling mechanism according to claim 2, wherein: The liquid inlet is provided with a luer joint (23), and the air port is provided with an air filter (24).

7. A multihead filling device in a column, comprising a cabinet (1), characterized in that: The cabinet (1) is provided with at least two groups of peristaltic filling mechanisms as claimed in any one of claims 1 to 6.

8. The column-type multi-head filling device according to claim 7, characterized in that: The cabinet (1) is provided with a control screen (2) and a power switch (3), the cabinet (1) is provided with a grounding terminal (9), a fan (10), a control assembly and at least two groups of driving assemblies, the control assembly comprises a power supply (12), a terminal row (13) and a PLC module (6), the driving assembly comprises a driver (15) and a motor (7), and the motor (7) is connected with the driving rotating wheel (26) through a shaft coupling (18).

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