A multi-paddle mixing device for evenly mixing lemon jam

By introducing a conical screen assembly, a spiral conveyor assembly, and an additive addition assembly into the lemon jam mixing device, combined with the coordinated control of the control center, the problems of uneven raw material mixing and insufficient automation have been solved, achieving efficient and uniform lemon jam production.

CN224506919UActive Publication Date: 2026-07-17广西农业职业技术大学

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
广西农业职业技术大学
Filing Date
2025-08-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing lemon jam mixing equipment lacks a raw material pretreatment and screening structure, which leads to the entry of impurities, causing the raw materials to clump together and making it difficult to mix evenly, resulting in low mixing efficiency and insufficient automation.

Method used

The system employs a combination of conical screening components, screw conveyor components, mixing tank components, and additive addition components. These measures, including the conical screening components and screw conveyor assembly installed within the outer frame, enable preliminary screening, dispersal, and precise control of additives for raw materials, combined with collaborative control from the control center.

Benefits of technology

It enables efficient screening and dispersing of raw materials, ensuring uniform mixing and automation, and improving the production quality and efficiency of lemon jam.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a multi-paddle mixing device for uniformly mixing lemon jam, comprising an outer frame, and within the outer frame, from top to bottom, a conical sieve assembly, a spiral conveyor assembly, a mixing tank assembly, and an additive addition assembly connected to the mixing tank assembly. A control center is located on one side of the outer frame. The conical sieve assembly includes a sieve hopper with an open top cover and a discharge pipe at the bottom; the spiral conveyor assembly includes a spiral conveyor pipe with a spiral conveyor shaft connected to a conveyor motor; the mixing tank assembly includes a mixing tank body with a multi-paddle mixing mechanism inside, comprising a mixing motor and a mixing shaft with impellers; the additive addition assembly includes an additive storage tank connected to an addition pipe with a control valve. This device, through the coordinated operation of its components, achieves efficient coordination of raw material screening, conveying, mixing, and additive addition, improving the uniformity of lemon jam mixing and production efficiency.
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Description

Technical Field

[0001] This utility model provides a multi-blade mixing device, and particularly relates to a multi-blade mixing device for uniformly mixing and blending lemon jam. Background Technology

[0002] In the food processing industry, the production of jams such as lemon jam usually requires the use of mixing equipment to stir and blend various ingredients such as lemon raw materials, sugar, and additives to achieve uniform mixing of each component and ensure the stability of the product's taste and quality. This type of equipment is a key piece of equipment on the jam production line, and its performance directly affects the production efficiency and quality of the product.

[0003] Existing lemon jam mixing devices typically consist of a simple mixing tank and a mixing paddle inside the tank. Raw materials are usually added directly to the mixing tank manually or via simple conveying equipment. Some devices may be equipped with a simple additive inlet. However, these devices generally have significant shortcomings. For example, they lack a pre-treatment screening structure for raw materials, which can easily lead to impurities or large pieces of raw materials entering the mixing stage and affecting the mixing effect. They also cannot perform preliminary dispersal during the raw material conveying process, making it difficult to quickly and evenly mix the raw materials after they enter the mixing tank in clumps. The mixing paddles are mostly of a single structure and are not reasonably distributed, which can easily create mixing dead zones. The additive addition method is rudimentary and cannot accurately control the amount and speed of addition. There is a lack of coordinated control between the various stages, resulting in a low overall level of automation, which affects the mixing efficiency and the final quality of the lemon jam. Utility Model Content

[0004] In order to solve the above problems, this application provides a multi-blade mixing device for mixing lemon jam evenly, which solves the problems of low mixing efficiency, uneven mixing and insufficient automation of existing devices.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a multi-blade mixing device for uniformly mixing and blending lemon jam, including an outer frame, and a conical screen assembly, a spiral conveying assembly, a mixing tank assembly, and an additive adding assembly connected to one side of the mixing tank assembly are arranged sequentially from top to bottom inside the outer frame.

[0006] The conical screening assembly includes a conical screening hopper, the top of which is provided with an open top cover, and the bottom of which is connected to a discharge pipe for conveying materials.

[0007] The spiral conveying assembly includes a spiral conveying pipe, a spiral conveying shaft is provided inside the spiral conveying pipe, one end of the spiral conveying shaft is connected to a conveying motor that drives its rotation, one end of the spiral conveying pipe is connected to the discharge pipe of the screen hopper through a pipe, and the other end is connected to the mixing tank assembly through a pipe.

[0008] The mixing tank assembly includes a mixing tank body, the top of which is provided with a feed inlet connected to the screw conveyor assembly, the bottom of which is provided with a discharge outlet, and a multi-blade mixing mechanism inside the mixing tank body. The multi-blade mixing mechanism includes a mixing motor, the output shaft of which extends into the mixing tank body and is connected to a mixing shaft, and multiple mixing blades are spaced apart along the axial direction on the mixing shaft.

[0009] The additive addition component includes an additive storage tank, the bottom of which is connected to an addition pipe. A control valve is provided on the addition pipe, and the end of the addition pipe away from the additive storage tank is connected to the inlet side wall of the mixing tank.

[0010] The outer frame is fixedly connected to a control center that controls the conical screen assembly, the screw conveyor assembly, the mixing tank assembly, and the additive addition assembly.

[0011] Preferably, the top cover opening of the sieve hopper is provided with a detachable screen, and the screen is fitted with an openable outer shell placed above the top cover of the sieve hopper. One side of the openable outer shell is connected to a hot air fan placed inside the outer frame through a hot air pipe.

[0012] The screen hopper is fixedly connected to a number of support legs, which are fixedly connected inside the outer frame.

[0013] Preferably, the spiral conveying pipe is inclined, with its lower horizontal end connected to the discharge pipe, which facilitates more efficient initial dispersal before feeding into the mixing tank assembly;

[0014] The two ends of the discharge pipe are detachably sealed via sealing flanges.

[0015] Preferably, the agitator is a paddle-type agitator, and the plurality of agitators are arranged in a spiral pattern on the agitator shaft.

[0016] Preferably, the additive storage tank is provided with multiple external connecting pipes below it. The external connecting pipes are used to connect to external water sources or other additives. The external connection ports of the external connecting pipes are located at the bottom of the horizontal level, which facilitates the slow mixing of the additives after pressurization with the additives inside the additive storage tank and their joint transportation through the addition pipeline.

[0017] Preferably, the control center controls the start and stop of the conveyor motor and its speed, the start and stop of the stirring motor and its speed, and the opening and closing of the valves in the additive addition component. It can also receive feedback on the operating status of each component to achieve automated operation of the device.

[0018] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages compared with the prior art:

[0019] This device uses a conical sieve hopper in a conical sieve assembly with a detachable screen at the top cover opening to perform preliminary screening of raw materials. Simultaneously, the openable outer casing and hot air blower deliver hot air through hot air pipes for raw material pretreatment. The screened raw materials are then fed through an outlet pipe into an inclined spiral conveyor pipe. Driven by a conveyor motor, the spiral conveyor shaft initially disperses and conveys the raw materials. Through a sealed flange-connected pipe, the raw materials are efficiently introduced into a mixing tank. Inside the mixing tank, spirally distributed paddle-type agitators rotate axially in multiple layers under the drive of a mixing motor. Various additives, connected via an external pipe, are precisely injected through an additive addition pipe. The control center coordinates and controls the speeds of the conveyor motor and the mixing motor, as well as the opening of the additive valves, ensuring thorough mixing of the raw materials and additives under multi-blade three-dimensional agitation, achieving a highly efficient and uniform mixing effect.

[0020] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0021] Figure 1 This is a three-dimensional installation diagram of a multi-paddle stirring device for uniformly mixing and blending lemon jam according to this utility model;

[0022] Figure 2 This is a three-dimensional schematic diagram of the internal structure of a multi-blade mixing device for uniformly mixing and blending lemon jam according to this utility model;

[0023] Figure 3 This is a three-dimensional schematic diagram of the outer frame structure of a multi-blade mixing device for uniformly mixing and blending lemon jam according to this utility model;

[0024] Figure 4 This is a schematic diagram showing the connection state of a multi-blade mixing device for uniformly mixing lemon jam according to this utility model.

[0025] As shown in the figure:

[0026] 1. Conical screen assembly;

[0027] 11. Screening hopper; 12. Discharge pipe; 13. Screen mesh; 14. Openable outer casing; 15. Hot air duct; 16. Support legs;

[0028] 2. Screw conveyor assembly;

[0029] 21. Spiral conveyor pipe; 22. Conveyor motor;

[0030] 3. Mixing tank assembly;

[0031] 31. Mixing tank; 32. Multi-blade mixing mechanism; 33. Mixing motor; 34. Mixing blade;

[0032] 4. Additive addition components;

[0033] 41. Additive storage tank; 42. Additive pipeline; 43. External connection pipe;

[0034] 5. Control Center;

[0035] 6. Hot air blower. Detailed Implementation

[0036] 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.

[0037] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] like Figure 1 and Figure 2As shown, this multi-blade mixing device for mixing lemon jam evenly has an outer frame. Inside the outer frame, from top to bottom, there are a conical screen assembly 1, a spiral conveyor assembly 2, a mixing tank assembly 3, and an additive addition assembly 4 connected to one side of the mixing tank assembly 3. A control center 5 is fixed to one side of the outer frame. The conical screening assembly 1 includes a conical screening hopper 11 with an open top cover and a discharge pipe 12 at the bottom. The screw conveyor assembly 2 includes a screw conveyor pipe 21 with a screw conveyor shaft inside. One end of the shaft is connected to a conveyor motor 22. One end of the screw conveyor pipe 21 is connected to the discharge pipe 12 of the screening hopper 11 through a pipe, and the other end is connected to the mixing tank assembly 3 through a pipe. The mixing tank assembly 3 has a mixing tank body 31 with an inlet at the top connected to the screw conveyor assembly 2 and an outlet at the bottom. It is equipped with a multi-blade stirring mechanism 32 inside, which includes a stirring motor 33. The motor output shaft extends into the tank body and is connected to the stirring shaft. Multiple stirring blades 34 are spaced axially on the shaft. The additive addition assembly 4 includes an additive storage tank 41 with an addition pipe 42 at the bottom. The pipe has a control valve, and the end of the pipe away from the storage tank is connected to the side wall of the inlet of the mixing tank body 31.

[0040] In this implementation scheme, the outer frame provides overall support, ensuring the orderly distribution of the conical sieve assembly 1, the screw conveyor assembly 2, the mixing tank assembly 3, the additive addition assembly 4, and the control center 5. The conical sieve hopper 11 of the conical sieve assembly 1 allows for smooth material entry, while the top opening facilitates feeding. The discharge pipe 12 transfers the material to the screw conveyor assembly 2, performing preliminary screening to remove impurities and ensure the purity of the material for subsequent mixing. The screw conveyor assembly 2's screw conveyor pipe 21, in conjunction with the internal screw conveyor shaft and conveyor motor 22, initially breaks up the material during transport, preventing clumping. The inclined conveyor pipe further facilitates efficient material transport to the mixing tank assembly 3. The mixing tank body 31 of the mixing tank assembly 3 provides mixing space. In the multi-blade mixing mechanism 32, the mixing motor 33 drives the mixing shaft to rotate, and multiple axially spaced mixing blades 34 on the shaft can mix the material from different heights and angles, eliminating dead zones and ensuring more uniform mixing of the lemon jam. The additive storage tank 41 of the additive addition component 4 stores the additives, while the addition pipeline 42 and control valves can precisely control the amount and timing of additive addition, ensuring thorough mixing of the additives and raw materials in the mixing tank. The control center 5 can coordinate and control the operation of each component, achieving automated operation and improving the efficiency and precision of mixing and blending. The overall structure works in synergy, effectively solving the problems of low mixing efficiency and uneven mixing in existing devices, thus improving the production quality and efficiency of lemon jam.

[0041] like Figure 2 and Figure 3As shown, a production and connection embodiment is provided. The outer frame supports the internal structures, and the structural connections between the internal and outer frames are as follows: The outer frame is a square frame structure, composed of multiple columns and beams connected together, providing stable support for the internal components. The conical screening assembly 1 is fixedly connected to the beams inside the outer frame via support feet 16 on the outside of its screening hopper 11, achieving its positioning within the frame. The spiral conveying pipe 21 of the spiral conveying assembly 2 is connected to the columns and beams of the outer frame via pipe supports, ensuring its stable inclined position. The bottom of the mixing tank 31 of the mixing tank assembly 3 is fixed to the bottom platform of the outer frame via a support base. The additive storage tank 41 of the additive adding assembly 4 is mounted on a column on one side of the outer frame via a bracket, and the adding pipe 42 is arranged along the columns and beams of the outer frame and connected to the mixing tank 31. The control center 5 is directly fixedly connected to a column on one side of the outer frame for convenient control of the components.

[0042] like Figure 3 and Figure 4 As shown, in the device, the top cover opening of the screening hopper 11 has a detachable screen 13. Outside the screen 13 is an openable outer shell 14 that fits over the top cover of the screening hopper 11. One side of the outer shell 14 is connected to a hot air blower 6 inside the outer frame via a hot air pipe 15. Several support feet 16 are fixed to the outside of the screening hopper 11 and are fixed inside the outer frame. The spiral conveying pipe 21 is inclined, with its lower horizontal end connected to the discharge pipe 12. Both ends of the discharge pipe 12 are detachably sealed via sealing flanges. The stirring paddle 34 is a blade type, with multiple stirring paddles 34 spirally distributed on the stirring shaft. Below the additive storage tank 41 are multiple external connecting pipes 43 for connecting to external water sources or other additives. The external connection ports of the external connecting pipes 43 are located at the lower horizontal end. The control center 5 can control the start and stop of the conveyor motor 22 and its speed, the start and stop of the stirring motor 33 and its speed, and the opening and closing of the control valves in the additive addition component 4. It can also receive feedback on the operating status of each component to realize the automated operation of the device.

[0043] In this implementation scheme, the detachable screen 13 can be replaced according to the raw material conditions for precise screening; the openable outer shell 14, in conjunction with the hot air blower 6 and hot air pipe 15, can introduce hot air into the screening hopper 11 for pre-treatment such as drying of the raw materials; the support feet 16 ensure the stability of the screening hopper 11. The inclined spiral conveying pipe 21, combined with the discharge pipe 12 connected by a sealed flange, facilitates the flow of raw materials and is easy to disassemble and maintain. The spirally distributed paddle-type stirring paddle 34 can agitate the raw materials from different levels and angles when the stirring shaft rotates, enhancing the mixing effect. Multiple external connection pipes 43 facilitate the connection of various additives or water sources; the low horizontal external connection ports help additives to smoothly enter the additive storage tank 41 and be mixed with the internal substances before being transported. The control center 5 accurately controls and receives status feedback from each component, realizing the automated and intelligent operation of the device, further improving the efficiency and uniformity of lemon jam mixing and blending.

[0044] When using this multi-paddle mixer to mix and blend lemon jam evenly, it is necessary to use a raw material transport vehicle, as is available in the technology, to transport the lemon raw materials to the sieve hopper 11 of the conical sieve assembly 1. The raw material transport vehicle can be a common electric transport vehicle, which is convenient and flexible for transferring raw materials. At the same time, after the mixing is completed, the existing pipeline pump is used to transport the mixed lemon jam to the subsequent storage tank or packaging equipment through the discharge port of the mixing tank 31. The pipeline pump can be a stainless steel centrifugal pump to ensure corrosion resistance and stable delivery. In addition, the screen 13 in the device can be made of 304 stainless steel screen, which has good corrosion resistance and strength and can effectively screen raw materials. The hot air blower 6 can be an industrial hot air generator to provide stable hot air for raw material pretreatment. The mixing paddle 34 is made of food-grade stainless steel to ensure that the lemon jam is not contaminated during the mixing process. The additive storage tank 41 is made of acid and alkali resistant plastic material, which can be used for various additives and ensure the service life and safety of the storage tank.

[0045] Specifically, during installation, the outer frame can be fixed to the concrete foundation with expansion bolts. The connection between each component and the outer frame adopts the existing installation method of welding or bolting. For example, the support leg 16 is fastened to the outer frame beam with M10 bolts to ensure overall stability. In use, first weigh the required lemon raw materials, sugar, and other ingredients using an electronic scale, pour the raw materials into the hopper of the raw material conveyor, and then manually push the conveyor to the side of the screen hopper 11. After opening the openable outer shell 14, pour the raw materials into the screen 13 through the top cover opening. Before starting the hot air blower 6, the appropriate temperature (such as 50-60℃) needs to be set using its built-in temperature control knob. When the hot air enters the outer shell 14 through the hot air pipe 15, it can pass through the existing wind deflector on the outer shell. Adjust the hot air flow direction; when the screw conveyor assembly 2 is running, the conveyor motor (22) is connected to the control center 5 through the existing frequency converter, and the operator sets the conveying speed (e.g., 100-200 r / min) on the control center panel; before the additive is added, it is connected to the existing metering pump through the external connection pipe 43. The metering pump pumps the external additive into the additive storage tank 41 according to the preset amount of the control center. When adding, the opening of the control valve is adjusted through the touch screen of the control center; after the stirring is completed, the discharge valve of the discharge port of the stirring tank 31 is opened, the existing hose pump is started, and the lemon sauce is pumped into the subsequent sterilization equipment through the food-grade silicone hose. During the whole process, the operation of each existing device follows its regular operating procedures and works with this device to complete the lemon sauce preparation process.

[0046] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A multi-paddle mixing device for uniform mixing of lemon curd blend comprising an outer frame, characterized in that, The outer frame is provided with a conical screen assembly (1), a screw conveyor assembly (2), a mixing tank assembly (3), and an additive addition assembly (4) connected to one side of the mixing tank assembly (3) in sequence from top to bottom. The conical screening assembly (1) includes a conical screening hopper (11), the top of which is provided with an open top cover, and the bottom of which is connected to a discharge pipe (12) for conveying materials. The spiral conveying assembly (2) includes a spiral conveying pipe (21), which is provided with a spiral conveying shaft. One end of the spiral conveying shaft is connected to a conveying motor (22) that drives it to rotate. One end of the spiral conveying pipe (21) is connected to the discharge pipe (12) of the screen hopper (11) through a pipe, and the other end is connected to the mixing tank assembly (3) through a pipe. The mixing tank assembly (3) includes a mixing tank body (31), the top of the mixing tank body (31) is provided with a feed port that communicates with the screw conveyor assembly (2), the bottom of the mixing tank body (31) is provided with a discharge port, the mixing tank body (31) is provided with a multi-blade mixing mechanism (32) inside the mixing tank body (31), the multi-blade mixing mechanism (32) includes a mixing motor (33), the output shaft of the mixing motor (33) extends into the mixing tank body (31) and is connected to a mixing shaft, and a plurality of mixing blades (34) are arranged axially at intervals on the mixing shaft; The additive addition component (4) includes an additive storage tank (41), the bottom of which is connected to an addition pipe (42), and the addition pipe (42) is provided with a control valve. The end of the addition pipe (42) away from the additive storage tank (41) is connected to the inlet side wall of the mixing tank (31). The outer frame is fixedly connected to a control center (5) that controls the conical screen assembly (1), the screw conveyor assembly (2), the mixing tank assembly (3), and the additive addition assembly (4).

2. The lemonade mix blending uniformity multi-paddle stirring device of claim 1, wherein, The top cover opening of the sieve hopper (11) is provided with a detachable screen (13). The screen (13) is fitted with an openable outer shell (14) placed above the top cover of the sieve hopper (11). One side of the openable outer shell (14) is connected to a hot air blower (6) placed inside the outer frame through a hot air pipe (15). The screen hopper (11) is fixedly connected to a number of support legs (16), which are fixedly connected inside the outer frame.

3. The lemonade mix blending uniformity multi-paddle stirring device of claim 1, wherein, The spiral conveying pipe (21) is inclined, and its lower horizontal end is connected to the discharge pipe (12), which facilitates more efficient initial dispersal before input into the mixing tank assembly (3); The discharge pipe (12) is detachably sealed at both ends through sealing flanges.

4. The lemonade mix blending uniformity multi-paddle stirring device of claim 1, wherein, The stirring paddle (34) is a blade-type stirring paddle, and multiple stirring paddles (34) are spirally distributed on the stirring shaft.

5. The lemonade mix blending uniformity multi-paddle stirring device of claim 1, wherein, The additive storage tank (41) is provided with multiple external connecting pipes (43) below it. The external connecting pipes (43) are used to connect to external water sources or other additives. The external connection port of the external connecting pipe (43) is located at the end with the horizontal height, which facilitates the slow mixing of the additive with the additive inside the additive storage tank (41) after pressurization and transportation through the addition pipe (42).

6. The lemonade mix blending uniformity multi-paddle stirring device of claim 1, wherein, The control center (5) controls the start and stop of the conveying motor (22) and its speed, the start and stop of the stirring motor (33) and its speed, and the opening and closing of the control valves in the additive addition component (4). It can also receive feedback on the operating status of each component to realize the automated operation of the device.