Vacuum densimeter for aquatic feed

Abstract

The utility model discloses a kind of vacuum density meters for aquatic feed, it is related to aquatic extruded material production equipment technical field, including placing base. The upper surface of the placing base is equipped with extruded cylinder, and the end of extruded cylinder is equipped with servo motor one, and servo motor one output screw rod rotates. The vacuum density meter for aquatic feed, compared with the existing ordinary aquatic extruded material density control instrument, cutting tool and pressure chamber are designed as a whole by connecting cylinder, reduce intermediate connecting component, optimize internal structure by finite element analysis, select high-strength, corrosion-resistant alloy material, ensure stability and sealing under high-pressure environment, to produce % sink water material, ensure that equipment can be in seawater fish material and crayfish material production environment Long-term stable operation;Adopt high-precision laser cutting and numerical control bending technology to improve part accuracy and assembly stability, improve equipment surface protection ability through high-quality painting treatment, adapt to humid and strong corrosion environment.

Description

Technical Field

[0001] This utility model relates to the technical field of aquatic extruded feed production equipment, specifically a vacuum density meter for aquatic feed. Background Technology

[0002] The application of extruded aquatic feed is becoming increasingly widespread in aquaculture, with a growing variety of species being produced. Traditional extruded feed (for tilapia, grass carp, etc.) floats on the water surface, while organisms like grouper and crabs forage in deeper waters. Extruded feed has significant advantages in aquaculture feed applications, and there is an urgent market demand for extruded feed that sinks to the bottom. Existing aquatic extruded feed production equipment can only produce extruded feed that floats on the water surface, not that that sinks. Traditional sinking feed can only be produced by pelleting.

[0003] For example, patent application number 201620509581.6 discloses an aquatic extruded feed density controller. This utility model discloses an aquatic extruded feed density controller, including a pneumatic feeding device, an airlock, and a cutting device. The cutting device includes a sealed cutting chamber and a cutting assembly located within the cutting chamber, powered by a motor. Because the aquatic extruded feed density controller can produce both floating and sinking aquatic extruded feed by adjusting a regulating valve, it changes the traditional pellet mill production mode of sinking feed and solves the problem of high-grade extruded sinking feed formulation, enabling the production of high-grade extruded sinking feed. However, in the field of aquatic feed production, especially in the production of marine fish feed and crayfish feed, product quality is closely related to the performance of the production equipment. With the large-scale development of aquaculture, the market demand for high-quality, highly stable aquatic feed continues to rise, placing stringent requirements on the pressure control and overall performance of production equipment. Traditional density controllers feature an independent cutter chamber and pressure chamber with numerous connecting components. This structure not only increases the complexity of the equipment but also makes it prone to pressure leaks, leading to unstable pressure within the cutter chamber and an inability to guarantee the production of 100% sinking material, severely impacting product quality and production efficiency. Under high pressure, the structural stability and sealing of existing equipment also present vulnerabilities. Frequent leaks not only reduce the equipment's lifespan but also increase maintenance costs and downtime.

[0004] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings, and proposed a vacuum density meter for aquatic feed. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum density meter for aquatic feed to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vacuum density meter for aquatic feed, comprising a base, an expansion cylinder mounted on the upper surface of the base, a servo motor mounted at the end of the expansion cylinder, the output screw of the servo motor rotating, a connecting cylinder mounted at the output end of the expansion cylinder, a flange mounted at the connection between the connecting cylinder and the expansion cylinder, the inner surface of the connecting cylinder being composed of a corrosion-resistant alloy, a pressure chamber provided on the front inner surface of the connecting cylinder, a second servo motor mounted on the rear surface of the connecting cylinder, and a rotating disk provided at the output end of the second servo motor.

[0007] Preferably, the surface of the rotating disk is provided with a cutter, and the cutter is disposed inside the connecting cylinder.

[0008] Preferably, the lower outer surface of the connecting cylinder is provided with a double-layer sealing door, and the lower surface of the double-layer sealing door is provided with a discharge pipe.

[0009] Preferably, a feed hopper is installed on the upper surface of the puffing cylinder, and a steam heating pipe is provided on the outer surface of the puffing cylinder.

[0010] Preferably, a PLC pressure controller is provided on the upper outer surface of the connecting cylinder, and the PLC pressure controller has automatic alarm and emergency stop functions, and a safety valve is provided inside the PLC pressure controller.

[0011] Preferably, a pressure relief valve is provided on the left side of the PLC pressure controller, and the pressure relief valve is located on the upper front surface of the pressure chamber.

[0012] Preferably, an inflation pipe is provided on the right side of the PLC pressure controller, and the inflation pipe is located on the upper rear surface of the pressure chamber.

[0013] Preferably, a pressure gauge is installed on the upper surface of the inflation pipe, and a pressure reducing valve is provided on the outer surface of the lower end of the inflation pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, through the arrangement of a base, expansion cylinder, servo motor one, feed hopper, steam heating pipe, connecting cylinder, flange, pressure chamber, servo motor two, rotating disk, cutter, double-layer sealing door, and discharge pipe, integrates the cutter and pressure chamber into a single unit via the connecting cylinder, reducing intermediate connecting parts. The internal structure is optimized through finite element analysis, and high-strength, corrosion-resistant alloy materials are selected to ensure stability and sealing under high pressure conditions. It can produce 100% sinking feed, ensuring long-term stable operation of the equipment in marine fish and crayfish feed production environments. High-precision laser cutting and CNC bending technology improve the accuracy of parts and assembly stability, while high-quality painting enhances the surface protection of the equipment, adapting it to humid and highly corrosive environments.

[0016] 2. This utility model, through the setting of a PLC pressure controller, pressure relief valve, air filling pipeline, air pressure gauge and pressure reducing valve, and through the setting of the PLC pressure controller, can monitor and adjust the pressure in real time based on the PLC intelligent pressure regulation system combined with PID control algorithm, to ensure that the pressure is ≥2KG during normal production. It is equipped with multi-stage pressure sensors and safety valves, and has automatic alarm and emergency shutdown functions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the connecting cylinder of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the cutter of this utility model.

[0020] In the diagram: 1. Placement base; 101. Expansion cylinder; 102. Servo motor one; 103. Feed hopper; 104. Steam heating pipe; 2. Connecting cylinder; 201. Flange; 202. Pressure chamber; 203. Servo motor two; 204. Rotating disc; 205. Cutter; 206. Double-layer sealing door; 207. Discharge pipe; 3. PLC pressure controller; 301. Pressure relief valve; 302. Air filling pipe; 303. Pressure gauge; 304. Pressure reducing valve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-3 As shown, a vacuum density meter for aquatic feed includes a base 1, an extrusion cylinder 101 mounted on the upper surface of the base 1, and a servo motor 102 mounted at the end of the extrusion cylinder 101. The servo motor 102 outputs a screw to rotate. This technical solution, through the setting of the extrusion cylinder 101, can push the feed while also pressurizing and cooking it.

[0023] Furthermore, a connecting cylinder 2 is installed at the output end of the expansion cylinder 101, and a flange 201 is installed at the connection between the connecting cylinder 2 and the expansion cylinder 101. This technical solution, through the setting of the flange 201, can improve the connection stability between the connecting cylinder 2 and the expansion cylinder 101, while also improving the sealing capability of the equipment.

[0024] Furthermore, the inner surface of the connecting cylinder 2 is made of a corrosion-resistant alloy, and a pressure chamber 202 is provided on the inner surface of the front end of the connecting cylinder 2. This technical solution uses high-precision laser cutting and CNC bending technology to improve the precision of parts and assembly stability, and improves the surface protection capability of the equipment through high-quality painting treatment, making it suitable for humid and highly corrosive environments.

[0025] Furthermore, a servo motor 203 is installed on the rear surface of the connecting cylinder 2, and a rotating disk 204 is provided at the output end of the servo motor 203. A cutter 205 is provided on the surface of the rotating disk 204, and the cutter 205 is located inside the connecting cylinder 2. In this technical solution, the cutter 205 and the pressure chamber 202 are designed as a whole through the connecting cylinder 2, reducing intermediate connecting parts. The internal structure is optimized through finite element analysis, and high-strength, corrosion-resistant alloy materials are selected to ensure stability and sealing under high pressure environment, so as to produce 100% sinking material and ensure that the equipment can operate stably for a long time in the production environment of marine fish feed and crayfish feed.

[0026] Furthermore, a double-layer sealing door 206 is provided on the lower outer surface of the connecting cylinder 2, and a discharge pipe 207 is provided on the lower surface of the double-layer sealing door 206. This technical solution improves the sealing effect of the equipment by setting the double-layer sealing door 206 and by using a double-layer discharge method.

[0027] Furthermore, a feed hopper 103 is installed on the upper surface of the puffing cylinder 101, and a steam heating pipe 104 is provided on the outer surface of the puffing cylinder 101. This technical solution can assist the puffing cylinder 101 in heating by setting the steam heating pipe 104.

[0028] Furthermore, a PLC pressure controller 3 is installed on the upper outer surface of the connecting cylinder 2. The PLC pressure controller 3 has automatic alarm and emergency stop functions, and a safety valve is installed inside the PLC pressure controller 3. This technical solution, through the setting of the PLC pressure controller 3, can monitor and adjust the pressure in real time based on the PLC's intelligent pressure regulation system combined with the PID control algorithm to ensure that the pressure is ≥2KG during normal production. It is equipped with multi-stage pressure sensors and safety valves, and has automatic alarm and emergency stop functions.

[0029] Furthermore, a pressure relief valve 301 is provided on the left side of the PLC pressure controller 3, and the pressure relief valve 301 is located on the upper front surface of the pressure chamber 202. This technical solution, through the setting of the pressure relief valve 301, can protect the pressure chamber 202 by relieving pressure when the pressure inside the pressure chamber 202 is too high.

[0030] Furthermore, an air filling pipe 302 is provided on the right side of the PLC pressure controller 3, and the air filling pipe 302 is located on the upper rear end of the pressure chamber 202. A pressure gauge 303 is installed on the upper end surface of the air filling pipe 302, and a pressure reducing valve 304 is provided on the outer end surface of the air filling pipe 302. This technical solution, through the setting of the air filling pipe 302, can replenish the air pressure inside the pressure chamber 202 in a timely manner, so as to keep it at a stable value.

[0031] Working Principle: When using this vacuum density meter for aquatic feed, firstly, during the production process of aquatic extruded feed, the pre-processed raw materials are conveyed to the extrusion cylinder 101 via the feed hopper 103. The servo motor 102 drives the screw inside the extrusion cylinder 101 to rotate at a uniform speed, propelling the material forward. Simultaneously, high-temperature steam injected through the steam heating pipe 104 creates a high-pressure environment inside the extrusion cylinder 101. During this process, the raw materials undergo thorough maturation and plasticization, laying the foundation for subsequent molding.

[0032] The expanded material is pushed into pressure chamber 202 via a screw extrusion method. A PLC pressure controller 3 mounted on top of pressure chamber 202 monitors internal pressure changes in real time. When the pressure falls below a set threshold, the controller automatically activates the inflation pipe 302 to replenish gas into pressure chamber 202, ensuring that the pressure remains stable at ≥2KG throughout the production process.

[0033] The pressure-regulated material is ejected from pressure chamber 202. Servo motor 203 precisely controls the high-speed rotation of cutter 205, accurately cutting the material under the stable positive pressure sealing environment of pressure chamber 202. Thanks to the reshaping effect of the high-pressure environment on the material structure, the produced feed has a uniform density, ensuring 100% compliance with water settling requirements. Finally, the cut feed falls orderly into discharge pipe 207 through double-sealed doors 206, completing the entire production process. This is the working principle of this vacuum density meter for aquatic feed.

Claims

1. A vacuum density meter for aquatic feed, comprising a base (1), characterized in that, An expansion cylinder (101) is installed on the upper surface of the placement base (1), and a servo motor (102) is installed at the end of the expansion cylinder (101). The output screw of the servo motor (102) rotates. A connecting cylinder (2) is installed at the output end of the expansion cylinder (101), and a flange (201) is installed at the connection between the connecting cylinder (2) and the expansion cylinder (101). The inner surface of the connecting cylinder (2) is made of corrosion-resistant alloy, and a pressure chamber (202) is provided on the inner surface of the front end of the connecting cylinder (2). A servo motor (203) is installed on the rear end surface of the connecting cylinder (2), and a rotating disk (204) is provided at the output end of the servo motor (203).

2. The vacuum density meter for aquatic feed according to claim 1, characterized in that, The surface of the rotating disk (204) is provided with a cutter (205), and the cutter (205) is located inside the connecting cylinder (2).

3. The vacuum density meter for aquatic feed according to claim 1, characterized in that, The lower outer surface of the connecting cylinder (2) is provided with a double-layer sealing door (206), and the lower surface of the double-layer sealing door (206) is provided with a discharge pipe (207).

4. A vacuum density meter for aquatic feed according to claim 1, characterized in that, The upper surface of the puffing cylinder (101) is equipped with a feed hopper (103), and the outer surface of the puffing cylinder (101) is provided with a steam heating pipe (104).

5. A vacuum density meter for aquatic feed according to claim 1, characterized in that, The upper outer surface of the connecting cylinder (2) is provided with a PLC pressure controller (3), and the PLC pressure controller (3) has automatic alarm and emergency stop functions, and a safety valve is provided inside the PLC pressure controller (3).

6. A vacuum density meter for aquatic feed according to claim 5, characterized in that, The left side of the PLC pressure controller (3) is provided with a pressure relief valve (301), and the pressure relief valve (301) is located on the upper front surface of the pressure chamber (202).

7. A vacuum density meter for aquatic feed according to claim 5, characterized in that, An inflation pipe (302) is provided on the right side of the PLC pressure controller (3), and the inflation pipe (302) is located on the upper rear surface of the pressure chamber (202).

8. A vacuum density meter for aquatic feed according to claim 7, characterized in that, A pressure gauge (303) is installed on the upper surface of the inflation pipe (302), and a pressure reducing valve (304) is provided on the outer surface of the end of the inflation pipe (302).

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