A discharge mechanism
Patent Information
- Application Number
- CN202522294959.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-10-30
AI Technical Summary
传统出液机中所设置的出料机构多使用蠕动泵做为动力源，但蠕动泵的工作逻辑是通过滚轮挤压软管，形成负压吸入流体并推送出去，这种设计只适用于低粘度、无固体颗粒的流体，块状果酱无法通过
本种结构形式的出料机构，其结构简单，设计巧妙，布局合理，它针对传统的出液机/出料机构在提供粘稠度较高的物料时所存在的物料残留的问题，设计出一种特殊的结构；它利用丝杠/丝杠螺母座机构来输出精准的直线运动，并利用丝杠螺母座来挤压波纹管式的压缩料盒，再利用电磁铁/弹簧的结构来实现密封活塞轴的提升与下放动作，来控制出料口的开/闭状态；由于压缩料盒可以被压缩至近乎没有容积的状态，因此可以最大限度地将其中容纳的粘稠物料挤出并供给顾客，从而达到节省原料的目的；而且粘稠物料中经常会混有颗粒状的果肉，如果直接采用电磁阀等现有结构的阀体，在长时间使用后这些果肉很容易造成阀体的堵塞，而本出料机构中利用能够往复运动的密封活塞轴对出料筒底部的出料口进行密封，在开启时出料口完全敞开，保证顺畅出料，关闭时密封活塞轴将出料口挤死，能够将密封活塞轴下方的一部分物料挤出，从而防止出现固态物料残留在出料口处的问题。并且这种自动出料机构的制作工艺简单，制造成本低廉，因此可以说它具备了多种优点，特别适合于在本领域中推广应用，其市场前景十分广阔。
Smart Images
Figure CN224806338U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid discharge machines, and in particular to a discharge mechanism for solving the discharge problem of viscous materials, granular materials, and mixtures of viscous and granular materials. Background Technology
[0002] In the food and beverage industry, there is a type of dispensing machine that pumps beverages from storage containers to the outlet, providing drinks to consumers. As people's living standards improve, the variety of beverages consumed has increased, with many now containing fruit pulp. The higher the fruit pulp content, the less fluid the beverage becomes, i.e., the more viscous it is. Traditional dispensing machines often use peristaltic pumps as their power source. However, the working logic of a peristaltic pump is to use rollers to squeeze a hose, creating negative pressure to draw in fluid and push it out. This design is only suitable for low-viscosity fluids without solid particles; lumpy jams cannot pass through. When conveying viscous materials, due to its inherent structural limitations, a significant amount of material residue often remains in the final stage of conveying, resulting in waste and increased material costs for businesses. Using rotary pumps or screw pumps from the food processing industry presents problems such as large size, difficulty in cleaning, and high cost.
[0003] Therefore, a method or apparatus is needed to solve the above problems. Utility Model Content
[0004] This utility model aims to overcome the above-mentioned shortcomings of the existing technology by proposing a discharge mechanism with a simple structure, ingenious design, and reasonable layout, which can achieve residue-free discharge for viscous materials or materials mixed with particulate materials.
[0005] The technical solution of this utility model is: a discharge mechanism, characterized in that: the discharge mechanism includes a lead screw slide 1, a servo motor 2 is provided at the top of the lead screw slide 1, the output end of the servo motor 2 is connected to a lead screw 3, the lead screw 3 is rotatably supported on the lead screw slide 1, a lead screw nut seat 4 is connected to the lead screw 3, and the lead screw nut seat 4 is slidably connected to a slide rail 5 provided on the lead screw slide 1. The discharge mechanism also includes a material box seat 6, inside which a corrugated compression material box 7 is installed. The top surface of the compression material box 7 is connected to the bottom surface of the lead screw nut seat 4. A flexible conveying pipe 9 is connected to the bottom opening 8 of the compression material box 7, and the outlet end of the conveying pipe 9 is connected to the middle of the discharge cylinder 10. A sealing piston shaft 11 is movably connected inside the discharge cylinder 10. An electromagnet 12 is provided at the top of the discharge cylinder 10. The sealing piston shaft 11 can move along the axial direction of the discharge cylinder 10 under the action of the electromagnet 12. A spring 13 is also connected to the top of the sealing piston shaft 11. The bottom end of the sealing piston shaft 11 is adapted to the discharge port 14 at the bottom end of the discharge cylinder 10, that is, the sealing piston shaft 11 can seal the discharge port 14.
[0006] A sealing ring 15 is provided at the discharge port 14.
[0007] The discharge mechanism also includes a weighing mechanism located below the discharge port 14 at the bottom of the discharge cylinder 10. The weighing mechanism includes a weighing sensor 16, and a bearing plate 17 is provided on the top of the weighing sensor 16.
[0008] Compared with the prior art, this utility model has the following advantages: This type of discharge mechanism is simple in structure, ingenious in design, and rationally laid out. It addresses the problem of material residue in traditional liquid discharge / discharge mechanisms when supplying highly viscous materials by designing a special structure. It utilizes a lead screw / lead screw nut seat mechanism to output precise linear motion, and uses the lead screw nut seat to compress the bellows-type compression box. An electromagnet / spring structure is then used to lift and lower the sealed piston shaft, controlling the opening and closing of the discharge port. Because the compression box can be compressed to almost zero volume, it can maximize its... This automatic discharging mechanism extrudes viscous materials and supplies them to customers, thereby saving raw materials. Furthermore, viscous materials often contain granular fruit pulp. If existing valve structures such as solenoid valves are used directly, this pulp can easily cause blockages after prolonged use. However, this discharging mechanism utilizes a reciprocating sealing piston shaft to seal the discharge port at the bottom of the discharging cylinder. When open, the discharge port is fully open, ensuring smooth discharging; when closed, the sealing piston shaft seals the discharge port, expelling some material below the sealing piston shaft and preventing solid material residue at the discharge port. Moreover, this automatic discharging mechanism has a simple manufacturing process and low production cost. Therefore, it possesses multiple advantages and is particularly suitable for widespread application in this field, with a very broad market prospect. Attached Figure Description
[0009] Figure 1 This is a front view of an embodiment of the present utility model.
[0010] Figure 2 This is a side view of the lead screw slide portion in an embodiment of this utility model. Detailed Implementation
[0011] The specific embodiments of this utility model will be described below with reference to the accompanying drawings. Figure 1 , Figure 2 The diagram shows a discharge mechanism comprising a lead screw slide 1, a servo motor 2 mounted on the top of the lead screw slide 1, the output end of the servo motor 2 being connected to a lead screw 3, the lead screw 3 being rotatably supported on the lead screw slide 1, a lead screw nut seat 4 connected to the lead screw 3, and the lead screw nut seat 4 being slidably connected to a slide rail 5 provided on the lead screw slide 1. The discharge mechanism also includes a material box seat 6, inside which a corrugated compression material box 7 is installed. The top surface of the compression material box 7 is connected to the bottom surface of the lead screw nut seat 4. A flexible conveying pipe 9 is connected to the bottom opening 8 of the compression material box 7, and the outlet end of the conveying pipe 9 is connected to the middle of the discharge cylinder 10. A sealing piston shaft 11 is movably connected inside the discharge cylinder 10. An electromagnet 12 is provided at the top of the discharge cylinder 10. The sealing piston shaft 11 can move along the axial direction of the discharge cylinder 10 under the action of the electromagnet 12. A spring 13 is also connected to the top of the sealing piston shaft 11. The bottom end of the sealing piston shaft 11 is adapted to the discharge port 14 at the bottom end of the discharge cylinder 10, that is, the sealing piston shaft 11 can seal the discharge port 14.
[0012] A sealing ring 15 is provided at the discharge port 14.
[0013] The discharge mechanism also includes a weighing mechanism located below the discharge port 14 at the bottom of the discharge cylinder 10. The weighing mechanism includes a weighing sensor 16, and a bearing plate 17 is provided on the top of the weighing sensor 16.
[0014] The working process of the discharge mechanism in this embodiment of the utility model is as follows: Install the mechanism in the liquid discharge machine, take a compressed material box 7 filled with material and install it in the material box seat 6, and make the bottom end face of the lead screw nut seat 4 contact the top of the compressed material box 7. When material needs to be discharged, the operator first places an empty cup on the support plate 17 and presses the button on the liquid dispensing machine. The control system of the liquid dispensing machine sends a signal to the servo motor 2, which drives the lead screw 3 to rotate. Since the lead screw nut seat 4 is connected to the lead screw 3 and is slidably connected to the slide rail 5 (i.e., the lead screw nut seat 4 cannot rotate with the lead screw 3), the lead screw nut seat 4 will move linearly along the axis of the lead screw 3. By controlling the number of revolutions output by the servo motor 2, the amount of downward movement of the lead screw nut seat 4 can be precisely controlled. When the lead screw nut seat 4 moves downward, it will squeeze the compression box 7. Since the overall structure of the compression box 7 is a deformable corrugated tube, the compression box 7 will be compressed under the action of the lead screw nut seat 4. The viscous material stored therein will be discharged from the bottom opening 8 under pressure and enter the inner cavity of the discharge cylinder 10 through the conveying pipe 9, specifically, into the space between the discharge cylinder 10 and the sealing piston shaft 11. In the initial state, the electromagnet 12 is energized and exhibits magnetism. At this time, the sealed piston shaft 11 (made of ferromagnetic metal, or with a connecting block made of ferromagnetic metal at its top) is positioned at the top under the attraction of the electromagnet 12. The spring 13 is compressed, and the discharge port 14 at the bottom of the discharge cylinder 10 is open. The material entering the discharge cylinder 10 will flow out through the discharge port 14 under the squeezing action of the screw nut seat 4 and fall into the cup below. During this process, the weighing sensor 16 continuously detects the change in the overall mass of the cup. When the overall mass of the cup reaches the preset trigger value, the control system connected to the weighing sensor 16 will control the electromagnet 12 to de-energize and stop the servo motor 2. After the electromagnet 12 is de-energized, the sealed piston shaft 11 moves downward under the action of the spring 13, and its bottom end will press against the discharge port 14 to seal it. After the servo motor 2 stops working, the compression box 7 no longer deforms and stops feeding material into the discharge cylinder 10. The sealing ring 15 located at the discharge port 14 can effectively prevent material leakage from the discharge cylinder 10.
[0015] In this discharge mechanism, the material box containing the material is a corrugated compression box 7. A special structure (screw and screw nut seat structure) is used to achieve precise linear output. The material is squeezed out by the deformation of the compression box 7. Since the corrugated compression box 7 can be deformed to a nearly fully compressed state, the material residue can be minimized. While ensuring stable material supply, material loss can be reduced as much as possible to save (material) costs.
Claims
1. A discharge mechanism, characterized in that: The discharge mechanism includes a lead screw slide (1), a servo motor (2) is provided at the top of the lead screw slide (1), the output end of the servo motor (2) is connected to the lead screw (3), the lead screw (3) is rotatably supported on the lead screw slide (1), a lead screw nut seat (4) is connected to the lead screw (3), and the lead screw nut seat (4) is slidably connected to the slide rail (5) provided on the lead screw slide (1). The discharge mechanism also includes a material box seat (6), inside which is a corrugated compression material box (7). The top surface of the compression material box (7) is connected to the bottom surface of the lead screw nut seat (4). A flexible conveying pipe (9) is connected to the bottom opening (8) of the compression material box (7), and the outlet end of the conveying pipe (9) is connected to the middle of the discharge cylinder (10). A sealing piston shaft (11) is movably connected inside the discharge cylinder (10). An electromagnet (12) is provided at the top of the discharge cylinder (10). The sealing piston shaft (11) can move along the axial direction of the discharge cylinder (10) under the action of the electromagnet (12). A spring (13) is also connected at the top of the sealing piston shaft (11). The bottom end of the sealing piston shaft (11) is adapted to the discharge port (14) at the bottom end of the discharge cylinder (10), that is, the sealing piston shaft (11) can seal the discharge port (14).
2. The discharge mechanism according to claim 1, characterized in that: A sealing ring (15) is provided at the discharge port (14).
3. The discharge mechanism according to claim 1, characterized in that: The discharge mechanism also includes a weighing mechanism located below the discharge port (14) at the bottom of the discharge cylinder (10). The weighing mechanism includes a weighing sensor (16), and a bearing plate (17) is provided on the top of the weighing sensor (16).