Viscous fluid discharging device

Abstract

The utility model discloses a viscous liquid discharging device. The viscous liquid discharging device comprises a peristaltic pump, a pump inner pipe and a liquid outlet pipeline, the pump inner pipe is provided with a liquid inlet section, a pump inner section and a liquid outlet section, the liquid outlet pipeline is connected to the liquid outlet section to achieve communication between the liquid outlet pipeline and the pump inner pipe, the diameter of the liquid outlet pipeline is smaller than that of the pump inner pipe, and the peristaltic pump is arranged in the pump inner pipe. In this way, the liquid outlet pipeline can convey the viscous liquid raw material, the viscous liquid is continuously, stably, rapidly and accurately discharged, splashing is effectively reduced, and after discharging is finished, the leakage situation of the end opening can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of food and beverage machines, in particular to a viscous liquid discharging device. BACKGROUND

[0002] In the food and beverage industry, in view of food safety considerations, gear pumps that directly contact food and are not easy to clean are generally not used, and peristaltic pumps that do not directly contact food are used to pump raw materials. For viscous liquid raw materials, it is difficult for small power peristaltic pumps to pump, which affects the discharging efficiency; large power peristaltic pumps output materials quickly, which easily causes the materials to splash seriously when entering the liquid receiving container, causing pollution of surrounding objects and waste of materials. In addition, the current market generally has the problems of intermittent and unstable discharging when using peristaltic pumps and inlet and outlet pipelines to output raw materials, and there is still raw material dripping after discharging. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a viscous liquid discharging device, which can solve the technical problems of intermittent and unstable discharging when using peristaltic pumps to output raw materials, and there is still raw material dripping after discharging.

[0004] The present application provides a viscous liquid discharging device, which includes a peristaltic pump, an inner pump tube and an outlet pipeline, the inner pump tube is provided with an inlet section, an inner pump section and an outlet section, the inner pump section is arranged in the peristaltic pump, the outlet pipeline is connected to the outlet section, the outlet pipeline is in communication with the inner pump tube, and the diameter of the outlet pipeline is smaller than the diameter of the inner pump tube.

[0005] Further, the peristaltic pump includes a pump shell, a driving shaft and a rotating frame, the rotating frame is connected to the driving shaft, the driving shaft and the rotating frame are arranged in the pump shell, and the inner pump section is arranged between the rotating frame and the pump shell.

[0006] Further, the peristaltic pump further includes a motor, the motor is integrated on the pump shell, the motor is connected to the driving shaft, and the difference between the rotation frequency of the driving shaft driving the rotating frame and the elastic recovery frequency of the inner pump tube is less than or equal to a first threshold value.

[0007] Further, the lower surface of the pump shell is provided with an inlet and an outlet, the inner pump section is in the shape of an inverted U, the inner pump section is arranged around the rotating frame, and the two ends of the inner pump section are respectively clamped in the inlet and the outlet.

[0008] Further, the inlet and the outlet are each provided with a pipe fixing member, and the pipe fixing member is fixed to the outer surface of the inner pump tube.

[0009] Further, the rotating frame is a polygon, and a rotation shaft is arranged at a corner position of the rotating frame, and the rotation shaft is used to press the inner pump section against the inner side of the pump shell.

[0010] Further, the rotating frame is an equilateral triangle, and the minimum distance between the rotation shaft and the inner side of the pump shell is less than the outer diameter of the inner pump tube.

[0011] Further, the viscous liquid discharging device further comprises a connecting piece, the connecting piece is provided with a first connecting port and a second connecting port, the diameter of the first connecting port is greater than the diameter of the second connecting port, the first connecting port is connected to the liquid outlet section, and the second connecting port is connected to the liquid outlet pipeline.

[0012] Further, the ratio of the diameter of the liquid outlet pipeline to the diameter of the inner pump tube ranges from 0.65 to 0.85.

[0013] Further, the elastic modulus of the liquid outlet pipeline is greater than the elastic modulus of the inner pump tube.

[0014] The viscous liquid discharging device provided by the embodiment of the present application is provided with a peristaltic pump, an inner pump tube and a liquid outlet pipeline, the inner pump tube is provided with a liquid inlet section, an inner pump section and a liquid outlet section, the length of the liquid inlet section is greater than the length of the liquid outlet section, the liquid outlet pipeline is connected to the liquid outlet section to realize the communication between the liquid outlet pipeline and the inner pump tube, and the diameter of the liquid outlet pipeline is less than the diameter of the inner pump tube, so that the liquid outlet pipeline can be used to transport viscous liquid raw materials, the viscous liquid discharging is continuous and stable, the discharging is fast and accurate, the splashing is effectively reduced, and the dripping condition can be improved after the discharging is completed, and almost no dripping occurs. BRIEF DESCRIPTION OF DRAWINGS

[0015] The technical scheme and other beneficial effects of the present application will become apparent through the following detailed description of the specific embodiments of the present application in combination with the accompanying drawings.

[0016] Figure 1 The structure schematic diagram of the viscous liquid discharging device provided by the embodiment of the present application.

[0017] Figure 2 The internal structure schematic diagram of the viscous liquid discharging device provided by the embodiment of the present application.

[0018] The identification in the drawings is as follows:

[0019] Peristaltic pump 1, pump shell 11, liquid inlet 111, liquid outlet 112, drive shaft 12, rotating frame 13, tube fixing piece 14, rotation shaft 15, inner pump tube 2, liquid inlet section 21, inner pump section 22, liquid outlet section 23, liquid outlet pipeline 3, connecting piece 4, first connecting port 41, and second connecting port 42. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0021] In the description of the present application, it should be noted that unless explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, or electrical connection or can communicate with each other; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] Specifically, please refer to Figure 1 、 Figure 2 The present application provides a viscous liquid discharging device, which comprises a peristaltic pump 1, a pump inner pipe 2 and a liquid outlet pipeline 3. The pump inner pipe 2 is provided with an inlet section 21, a pump inner section 22 and an outlet section 23. The pump inner section 22 is arranged in the peristaltic pump 1. The liquid outlet pipeline 3 is connected to the outlet section 23 and communicates with the pump inner pipe 2. The diameter of the liquid outlet pipeline 3 is smaller than that of the pump inner pipe 2.

[0023] When conveying viscous liquid, the viscous liquid flows into the inlet section 21 of the pump inner pipe 2 under the action of the peristaltic pump 1, flows through the pump inner section 22 and the outlet section 23 of the pump inner pipe 2, and then flows out through the liquid outlet pipeline 3.

[0024] The diameter of the liquid outlet pipeline 3 is smaller than that of the pump inner pipe 2, so that the liquid outlet pipeline 3 can convey viscous liquid raw materials. The viscous liquid discharging is continuous and stable, the discharging is fast and accurate, the splashing is effectively reduced, and the port can improve the dripping condition after the discharging is completed, and almost no dripping occurs.

[0025] Please refer to Figure 1 、 Figure 2 The peristaltic pump 1 comprises a pump shell 11, a driving shaft 12 and a rotating frame 13. The rotating frame 13 is connected to the driving shaft 12. The driving shaft 12 and the rotating frame 13 are arranged in the pump shell 11. The pump inner section 22 is arranged between the rotating frame 13 and the pump shell 11.

[0026] Further, the peristaltic pump 1 further comprises a motor, the motor is integrated on the pump shell 11, the motor is connected to the drive shaft 12, and the drive shaft 12 drives the rotation frequency of the rotating frame 13 and the elastic recovery frequency of the pump inner tube 2. The difference between the two is less than or equal to a first threshold value. The peristaltic pump 1 cooperates with the pump inner tube 2 at the same frequency, that is, the action frequency of the peristaltic pump 1 is the same as or close to the elastic recovery frequency of the pump inner tube 2. The first threshold value is within ±5% of the rotation frequency of the drive shaft 12 driving the rotating frame 13. For example, when the first threshold value is 0% of the rotation frequency of the drive shaft 12 driving the rotating frame 13, it means that the rotation frequency of the drive shaft 12 driving the rotating frame 13 is the same as the elastic recovery frequency of the pump inner tube 2; when the first threshold value is 1% of the rotation frequency of the drive shaft 12 driving the rotating frame 13, it means that the rotation frequency of the drive shaft 12 driving the rotating frame 13 is within ±1% of the elastic recovery frequency of the pump inner tube 2, that is, the rotation frequency of the drive shaft 12 driving the rotating frame 13 is close to the elastic recovery frequency of the pump inner tube 2. Preferably, the first threshold value is any one of 1%, 2%, 3%, 4% and 5% of the rotation frequency of the drive shaft 12 driving the rotating frame 13. It can be understood that the first threshold value can be calculated based on 0%-5% of the rotation frequency of the drive shaft 12 driving the rotating frame 13, which all belong to the protection scope of the present application.

[0027] Further, the lower surface of the pump shell 11 is provided with a liquid inlet 111 and a liquid outlet 112, the pump inner section 22 is in inverted U shape, the pump inner section 22 is arranged around the rotating frame 13, and the two ends of the pump inner section 22 are respectively clamped in the liquid inlet 111 and the liquid outlet 112. This arrangement can realize stable clamping of the pump inner section 22 inside the pump shell 11 and realize stable fixing of the pump inner section 22.

[0028] Further, the liquid inlet 111 and the liquid outlet 112 are both provided with a pipe fixing piece 14, and the pipe fixing piece 14 is fixed to the outer surface of the pump inner tube 2. The pipe fixing piece 14 can stably clamp the pump inner section 22 inside the pump shell 11, preventing the pump inner tube 2 from being dislocated or shaken under the action of the peristaltic pump 1 when conveying viscous liquid.

[0029] Further, the rotating frame 13 is in polygonal shape, and the rotating shaft 15 is arranged at the corner position of the rotating frame 13, and the rotating shaft 15 extrudes the pump inner section 22 inside the pump shell 11.

[0030] Further, the rotating frame 13 is in equilateral triangle shape, and the minimum distance between the rotating shaft 15 and the inner side of the pump shell 11 is less than the outer diameter of the pump inner tube 2.

[0031] Please refer to Figure 1 、 Figure 2 The viscous liquid discharging device further comprises a connecting piece 4, which is provided with a first connecting port 41 and a second connecting port 42, the diameter of the first connecting port 41 is larger than that of the second connecting port 42, the first connecting port 41 is connected to the liquid outlet section 23, and the second connecting port 42 is connected to the liquid outlet pipeline 3. The connecting piece 4 can realize the communication between the liquid outlet pipeline 3 and the pump inner tube 2, and is suitable for the structure that the diameter of the liquid outlet pipeline 3 is smaller than that of the pump inner tube 2.

[0032] Further, the ratio of the diameter of the liquid outlet pipeline 3 to that of the pump inner tube 2 ranges from 0.65 to 0.85. That is, the ratio of the diameter of the second connecting port 42 to that of the first connecting port 41 ranges from 0.65 to 0.85.

[0033] Different models of peristaltic pumps 1 and their matched pump inner tubes 2 are used to test the delivery of viscous yogurt, for example, as shown in Table 1.

[0034] Table 1 Test Example

[0035]

[0036] The time required for two models of peristaltic pumps 1 and their matched pump inner tubes 2 to output 100g, 200g and 300g of yogurt is tested, and each discharging amount is tested for 5 times. The test data is shown in Table 2.

[0037] Table 2 Test Data

[0038]

[0039] Both 507R and 326R peristaltic pumps 1 can stably pump viscous yogurt liquid material. Although the rotation speed of the 507R peristaltic pump is faster than that of the 326R peristaltic pump, and the power is larger, the time required for outputting the same amount of material is relatively longer, and there is a significant splashing phenomenon during the liquid discharging process.

[0040] The elasticity of the pump inner tube 2 is adapted to the rotating speed of the 326R peristaltic pump 1. When the rotating shaft 15 of the peristaltic pump 1 operates, the pump inner tube 2 at the rotating shaft 15 is extruded, the pump inner tube 2 is elastically deformed under pressure, and then elastically recovers. The elastic deformation of the pump inner tube 2 is adapted to the extrusion force of the rotating shaft 15, the elastic recovery force matches the rotating frequency of the peristaltic pump 1, and can produce a certain amplitude of deformation or a certain degree of elastic recovery with the change of the extrusion force. The deformation and timely recovery of the pipe diameter generate an internal suction force on the material in the pump inner tube 2, promoting the flow of the liquid in the pump inner tube 2. At the same time, the change of the pipe diameter is adapted to the change of the flow, and the liquid can flow continuously and smoothly in the pump inner tube 2. Otherwise, due to the mismatch between the change of the pipe diameter and the change of the liquid flow in the pipe, gaps appear in the pipe, resulting in intermittent output of the liquid, affecting the precision of the liquid output.

[0041] With Hema Fresh grassland coagulation yogurt as raw material, 100g of raw material is output by the 326R peristaltic pump 1 cooperating with the #82 pump inner tube 2, the connecting piece 4 and the liquid outlet pipeline 3, and 20 tests are carried out on the actual output amount, the output time and the dripping situation (test environment temperature: 22.6℃, material temperature: 10.3-11.5℃), and the data is shown in Table 3.

[0042] Table 3 Dripping statistics table with Hema Fresh grassland coagulation yogurt as raw material

[0043]

[0044] Among them, the dripping statistics are all without dripping, represented by X.

[0045] With honey lemon juice as raw material, 100g of raw material is output by the 326R peristaltic pump 1 cooperating with the #82 pump inner tube 2, the connecting piece 4 and the liquid outlet pipeline 3, and 20 tests are carried out on the actual output amount, the output time and the dripping situation (test environment temperature: 22.6℃, material temperature: 10.3-11.5℃), and the data is shown in Table 4.

[0046] Table 4 Dripping statistics table with honey lemon juice as raw material

[0047]

[0048] Among them, the dripping statistics are all without dripping, represented by X.

[0049] By comparing the examples of Hema Fresh grassland coagulation yogurt as raw material and honey lemon juice as raw material, it can be known that when the concentration or viscosity of the raw material is different, the dripping situation is different. The liquid outlet device of the application can effectively improve the dripping situation and almost no dripping.

[0050] It can be understood that based on the delivery of viscous liquid raw materials, the viscous liquid is continuously and stably discharged, the discharge is fast and accurate, the splashing is effectively reduced, and after the discharge is completed, the port can improve the dripping condition, almost no dripping, preferably the ratio of the diameter of the liquid outlet pipeline 3 to the diameter of the pump inner tube 2 is 0.7-0.8. The diameter of the liquid outlet pipeline 3 is preferably 5-10mm.

[0051] Further, the elastic modulus of the liquid outlet pipeline 3 is greater than the elastic modulus of the pump inner tube 2, and the materials of the liquid outlet pipeline 3 and the pump inner tube 2 include but are not limited to fluororubber, polyurethane, chloroprene rubber or platinum vulcanized silicone rubber.

[0052] The material of the elastic pump inner tube 2 for delivering viscous liquid in the peristaltic pump 1 needs to consider elasticity, wear resistance, chemical corrosion resistance and fatigue resistance. The following are the main applicable materials and their characteristics:

[0053] The advantages of fluororubber (FPM) are: resistant to strong corrosive solvents and non-polar solvents, excellent chemical stability; resistant to high temperature (can work continuously up to 204℃), good balance of elasticity and hardness, suitable for high viscosity or corrosive component containing liquid.

[0054] The advantages of polyurethane (PU) are: excellent wear resistance and pressure resistance, good elasticity, suitable for viscous liquid delivery under high mechanical stress (such as industrial fluid).

[0055] The advantages of chloroprene rubber (CR) are: good oil resistance and chemical resistance, low cost, suitable for general viscous liquid (such as oil-containing liquid).

[0056] The viscous liquid discharge device provided by the embodiment of the application, by setting the viscous liquid discharge device comprising a peristaltic pump, a pump inner tube and a liquid outlet pipeline, the pump inner tube is provided with a liquid inlet section, a pump inner section and a liquid outlet section, the liquid outlet pipeline is connected to the liquid outlet section to realize the communication between the liquid outlet pipeline and the pump inner tube, the diameter of the liquid outlet pipeline is smaller than the diameter of the pump inner tube, so that the liquid outlet pipeline can deliver viscous liquid raw materials, the viscous liquid is continuously and stably discharged, the discharge is fast and accurate, the splashing is effectively reduced, and after the discharge is completed, the port can improve the dripping condition, almost no dripping.

[0057] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0058] The above has carried out the detailed introduction to the viscous liquid discharging device provided by the embodiment of the application, the principle and implementation mode of the application are described by applying specific examples in this paper, and the above embodiment description is only used to help understand the technical solutions and core ideas of the application; ordinary skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A viscous liquid dispensing device, characterized by, The viscous liquid discharging device comprises a peristaltic pump, a pump inner tube and a liquid outlet pipeline, the pump inner tube is provided with an inlet section, a pump inner section and an outlet section, the pump inner section is arranged in the peristaltic pump, the liquid outlet pipeline is connected to the outlet section, the liquid outlet pipeline is communicated with the pump inner tube, and the diameter of the liquid outlet pipeline is smaller than that of the pump inner tube.

2. The viscous fluid dispensing apparatus of claim 1, wherein The peristaltic pump comprises a pump shell, a driving shaft and a rotating frame, the rotating frame is connected to the driving shaft, the driving shaft and the rotating frame are arranged in the pump shell, and the pump inner section is arranged between the rotating frame and the pump shell.

3. The viscous fluid dispensing apparatus of claim 2, wherein The peristaltic pump further comprises a motor, the motor is integrated on the pump shell, the motor is connected to the driving shaft, and the difference between the rotation frequency of the rotating frame and the elastic recovery frequency of the pump inner tube is less than or equal to a first threshold value.

4. The viscous fluid dispensing apparatus of claim 2, wherein The lower surface of the pump shell is provided with an inlet and an outlet, the pump inner section is in an inverted U shape, the pump inner section is arranged around the rotating frame, and the two ends of the pump inner section are clamped in the inlet and the outlet respectively.

5. The viscous fluid dispensing apparatus of claim 4, wherein The inlet and the outlet are both provided with a pipe fixing part, and the pipe fixing part is fixed to the outer surface of the pump inner tube.

6. The viscous fluid dispensing apparatus of claim 2, wherein The rotating frame is in a polygonal shape, a rotating shaft is arranged at the corner position of the rotating frame, and the rotating shaft extrudes the pump inner section inside the pump shell.

7. The viscous fluid dispensing apparatus of claim 6, wherein The rotating frame is in an equilateral triangle shape, and the minimum distance between the rotating shaft and the inner side of the pump shell is smaller than the outer diameter of the pump inner tube.

8. The viscous fluid dispensing apparatus of claim 1 wherein, The viscous liquid discharging device further comprises a connecting piece, the connecting piece is provided with a first connecting port and a second connecting port, the diameter of the first connecting port is greater than that of the second connecting port, the first connecting port is connected to the outlet section, and the second connecting port is connected to the liquid outlet pipeline.

9. The viscous fluid dispensing apparatus of claim 1 wherein, The ratio of the diameter of the liquid outlet pipeline to the diameter of the pump inner tube ranges from 0.65 to 0.

85.

10. The viscous fluid dispensing apparatus of claim 1 wherein, The elastic modulus of the liquid outlet pipeline is greater than that of the pump inner tube.

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