A secondary pressure gear pump for food material

Abstract

The utility model discloses a kind of secondary pressurization gear pumps for food material, including hopper, pressurization gear group, vacuum gear group and closed box, hopper accommodates material, pressurization gear group is rotated with material and is once pressurized by gear, vacuum gear group is extruded by the secondary pressurization of meshing reverse rotation vacuum gear, and the import export of both is communicated.Extrusion method is that material enters hopper, is once pressurized by pressurization gear group, is extruded by vacuum gear group secondary pressurization, realizes secondary pressurization using material gravity and gear rotation, let material full cover vacuum gear import.This utility model solves the uneven problem of extrusion weight of existing gear pump to viscous, with granular material, realizes accurate, stable extrusion, and is suitable for viscous, with granular material processing in food production, fills in pressurization type gear pump blank, improves production efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of food production equipment technology, and in particular to a secondary booster gear pump for food materials, which is used to solve the problem of accurate and stable extrusion of materials that are difficult to extrude, such as viscous materials, hard materials, and particulate fluid materials. Background Technology

[0002] Currently, most commercially available vacuum gear pumps are ordinary vacuum-operated gear pumps, which are not ideal for extruding viscous or particulate materials. There is a lack of gear pumps that meet the secondary pressurization requirements for viscous materials. Ordinary gear pumps rely on vacuum gears to draw in material before extrusion. Because they ignore the inherent viscosity of the material and the ease with which air can be mixed into the particles, this results in insufficient material, gaps, and air at the vacuum gear inlet. The weight of the extruded material varies with each extrusion, failing to meet the requirements for consistency and weight accuracy in food production. This is especially true when processing highly viscous food materials containing particles, where the extrusion effect is poor and unstable. Utility Model Content

[0003] The purpose of this invention is to provide a secondary booster gear pump and extrusion method for food materials, which solves the problems of poor extrusion effect and inaccurate weight control of existing gear pumps for viscous and granular food materials, and achieves stable and accurate extrusion of highly viscous and granular materials.

[0004] The above-mentioned objective of this utility model is achieved through the following technical solution: a secondary booster gear pump for food materials, comprising a hopper, a booster gear set, a vacuum gear set, and a closed housing. The hopper is used to contain food materials. The closed housing has a primary pump chamber and a secondary pump chamber that are interconnected from top to bottom. The booster gear set is disposed in the primary pump chamber, and the vacuum gear set is disposed in the secondary pump chamber. The booster gear set includes two mutually cooperating booster gears for driving the material to flow downward for primary boosting. The vacuum gear set includes two mutually meshing and counter-rotating vacuum gears for secondary boosting and extrusion of the material. The inlet of the secondary pump chamber is connected to the outlet of the primary pump chamber. After being boosted once in the primary pump chamber, the material enters the secondary pump chamber for secondary boosting and extrusion.

[0005] Furthermore, the bottom of the primary pump chamber is shaped like a conical funnel.

[0006] Furthermore, the vacuum gear includes a shaft and a tooth, with one tooth forming a semi-circular shape around the shaft.

[0007] Furthermore, the booster gear has multiple evenly distributed teeth.

[0008] In operation, food materials are placed in the hopper. Inside the sealed chamber, the material is rapidly pressurized downwards by the rapidly rotating booster gear set. The vacuum gear set then draws the material in through the tooth gaps. A pair of vacuum gears mesh and rotate in opposite directions. After rotating 180 degrees, the material between the teeth is extruded out of the sealed chamber by the meshing of the other gear. One rotation of the gears completes the material extrusion, achieving continuous extrusion. The material is pressurized once by gravity in the hopper, and then pressurized again by the rotation of the booster gear set, ensuring the material fully covers the vacuum gear set inlet and guaranteeing precise extrusion.

[0009] Compared with existing technologies, the beneficial effects of this utility model are as follows: This secondary booster gear pump utilizes the gravity of the material in the hopper for primary pressurization, and the rotation of the booster gear set for secondary pressurization, ensuring that the material fully covers the inlet of the vacuum gear set, and is then extruded by the vacuum gear set. This solves the problems of insufficient material at the inlet and air mixing caused by the viscosity and particles of the material in existing gear pumps, resulting in inconsistent extrusion weights. It has the advantages of precise extrusion and stable extrusion of highly viscous materials with granular components, meeting the requirements of material extrusion weight control, filling speed, and stability in food production. It fills the gap in the market for pressurized gear pumps, improving food production efficiency and product quality. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the booster gear teeth, showing how the booster gear teeth facilitate the downward flow and pressurization of materials.

[0012] Figure 3 This is a schematic diagram of the tooth profile of a vacuum gear, demonstrating its unique tooth structure, which facilitates the introduction and compression of materials.

[0013] Figure 4 This is a diagram showing the interaction of two vacuum gear sets, illustrating the structure of two vacuum gears meshing and working together to ensure material transfer and extrusion.

[0014] Figure 5 This is a simplified schematic diagram of a secondary booster gear pump, illustrating the layout of the hopper, booster gear set, and vacuum gear set within a closed housing.

[0015] Figure 6 This is a schematic diagram of the material flow inside the booster gear pump, showing the rotation of the booster gear, the downward flow of material due to molecular friction, and the state at the inlet of the vacuum gear set.

[0016] Figure 7 This is a schematic diagram of the material flow inside the booster gear pump, further demonstrating the process of material rotating, being squeezed and discharged within the vacuum gear set. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] like Figures 1 to 7 As shown, a secondary pressurizing gear 201 pump for food materials includes a hopper 1, a pressurizing gear set 2, a vacuum gear set 3, and a closed housing 4. The hopper 1 is used to contain food materials. The closed housing 4 has a primary pump chamber 5 and a secondary pump chamber 6 that are interconnected from top to bottom. The bottom of the primary pump chamber 5 is shaped like a conical funnel. The pressurizing gear set 2 is disposed in the primary pump chamber 5, and the vacuum gear set 3 is disposed in the secondary pump chamber 6. The pressurizing gear set 2 includes two pressurizing gears 201 that cooperate with each other. The pressurizing gears 201 have multiple evenly distributed teeth 202, which are used to drive the material to flow downward for primary pressurization. The vacuum gear set 3 includes two meshing vacuum gears 301 that rotate in opposite directions, which are used to pressurize the material a second time and extrude it. The vacuum gear 301 includes a shaft 3011 and a tooth 3012. There is one tooth 3012, which is a semi-circular shape around the shaft 3011. The inlet of the secondary pump chamber 6 is connected to the outlet of the primary pump chamber 5. After the material is pressurized once by the primary pump chamber 5, it enters the secondary pump chamber 6 for secondary pressurization and extrusion.

[0019] In this embodiment, the material extrusion method using the secondary booster gear 201 pump for food materials includes the following steps:

[0020] (1) Equipment preparation: Check whether the components of the secondary booster gear 201 pump (hopper 1, booster gear set 2, vacuum gear set 3, enclosed box 4, etc.) are firmly installed, and ensure that the booster gear set 2 and vacuum gear set 3 can rotate normally and the enclosed box 4 is well sealed.

[0021] (2) Material feeding: Place the food material to be extruded (such as sticky sauce, jam with granules, etc.) into hopper 1 ( Figure 1 The material is initially flowing towards the booster gear set 2 under the action of gravity in hopper 1 (first booster preparation).

[0022] (3) First pressurization: Start the equipment, pressurization gear 201 of pressurization gear set 2 ( Figure 2 )according to Figure 6 , Figure 7 The material rotates rapidly in the direction of the middle arrow. Due to the interaction force of molecular friction, the material flows downward synchronously with the booster gear 201, forming a boost in the closed box 4, which makes the material flow quickly to the inlet of the vacuum gear set 3, ensuring that the material fully covers the inlet.

[0023] (4) Secondary pressurization and extrusion: Vacuum gear 301 of vacuum gear set 3 ( Figure 3 , Figure 4The gears mesh and rotate in opposite directions, drawing in material that has undergone initial pressurization through the tooth gap. When vacuum gear 301 rotates to 180 degrees, the material within the tooth gap is squeezed by the meshing of another gear and discharged from the outlet below the closed housing 4. As the gears continue to rotate for one cycle, the material is extruded, achieving a continuous and stable extrusion process.

[0024] (5) Process monitoring and adjustment: During the extrusion process, parameters such as the rotation speed of the booster gear set 2 and the vacuum gear set 3, and the material extrusion volume can be monitored through the equipment control system. According to the material characteristics (such as viscosity and particle size), the rotation speed of the booster gear set 2 can be adjusted to ensure the secondary boosting effect and the accuracy and stability of the material extrusion.

[0025] Through the above implementation methods, this secondary booster gear 201 pump can effectively solve the extrusion problem of viscous and particulate food materials, achieve precise and stable extrusion, and meet the needs of food production.

[0026] In this invention, the "vacuum" in "vacuum gear" refers to the low-pressure state (below atmospheric pressure) formed by the volume change of the space between the gear teeth when the gear rotates. The specific principle can be understood in conjunction with the working process of a gear pump:

[0027] When the gears of the vacuum gear set rotate in the opposite direction, the gears disengage on one side, and the space between the teeth "expands," the internal gas becomes rarefied, and the pressure decreases (below the external atmospheric pressure), forming an effect similar to a "local low-pressure area"—this gas state with pressure lower than atmospheric pressure is the meaning of "vacuum" in this scenario.

[0028] It differs from the physical concept of a "perfect vacuum (zero pressure)" and is closer to the practical definition of a "relatively low-pressure space" in engineering applications. The purpose is to utilize this low pressure to "draw" materials into the space between the gears due to the pressure difference, achieving stable conveying in conjunction with rotation and solving the extrusion problem of viscous and particulate materials. Simply put, it relies on the rotation of gears to create localized low pressure, "holding" the material and assisting in conveying. The "vacuum" here is a description of a relatively low-pressure working condition based on changes in the volume of the gear pump, not an absolutely empty physical vacuum.

[0029] The principle behind this invention for achieving stable and precise extrusion of highly viscous, particulate materials is as follows:

[0030] 1. Secondary pressurization feeding principle: First, the material in the hopper is pressurized by its own gravity, allowing the material to initially flow towards the inlet of the vacuum gear set; then, the pressurization gear set rotates rapidly, and the interaction force generated by the friction between material molecules pushes the material downward again to achieve secondary pressurization, so that the material can fully cover the inlet of the vacuum gear set, solving the problem of insufficient inlet feeding caused by high material viscosity and particle content, and ensuring a stable amount of material entering the vacuum gear set each time.

[0031] 2. Vacuum Gear Set Meshing and Extrusion Principle: A pair of gears in the vacuum gear set mesh and rotate in opposite directions, using the tooth gap to "grab" material. When the gears rotate 180 degrees, the top and bottom of the meshing gear teeth fit tightly together, squeezing the material within the tooth gap and extruding it from the closed chamber. Because the gear rotation cycle is fixed and the tooth gap volume is stable, combined with the stable feeding brought by secondary pressurization, the amount of material extruded each time can be precisely controlled, achieving stable and precise extrusion of highly viscous materials containing particles.

[0032] By combining "secondary pressurization to ensure stable feeding and gear meshing extrusion for precise quantity control", the drawbacks of existing gear pumps are solved, achieving the goal of stable and precise extrusion.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A secondary booster gear pump for food materials, characterized in that: The device includes a hopper, a booster gear set, a vacuum gear set, and a sealed housing. The hopper is used to hold food materials. The sealed housing has a primary pump chamber and a secondary pump chamber that are interconnected from top to bottom. The booster gear set is located in the primary pump chamber, and the vacuum gear set is located in the secondary pump chamber. The booster gear set contains two cooperating booster gears, which drive the material downward to perform primary pressurization. The vacuum gear set contains two meshing vacuum gears that rotate in opposite directions, which perform secondary pressurization and extrusion of the material. The inlet of the secondary pump chamber is connected to the outlet of the primary pump chamber. After being pressurized once in the primary pump chamber, the material enters the secondary pump chamber for secondary pressurization and extrusion.

2. The secondary booster gear pump for food materials according to claim 1, characterized in that: The bottom of the primary pump chamber is shaped like a conical funnel.

3. The secondary booster gear pump for food materials according to claim 1, characterized in that: The vacuum gear includes a shaft and a tooth, with one tooth forming a semi-circular shape around the shaft.

4. The secondary booster gear pump for food materials according to claim 1, characterized in that: The booster gear has multiple evenly distributed teeth.

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