Horizontal-vertical combined type clay large plate double screw vacuum extruder

Abstract

The utility model discloses a horizontal vertical combined type pottery soil large board double screw vacuum extruder relates to vacuum extruder technical field, including vacuum extruder assembly, the upper portion of vacuum extruder assembly is equipped with the receiving hopper, and the vacuum extruder assembly includes vacuum extruder main part, and the end of vacuum extruder main part is equipped with motor, and the motor between vacuum extruder main part is equipped with supplementary mixing mechanism. In the utility model, through motor synchronous drive supplementary mixing mechanism in the gear box inside no. 1 gear rotation, no. 1 gear engagement drive no. 2 gear, and further drive no. 3 gear and with its fixed no. 1 stirring paddle rotation, simultaneously no. 3 gear engagement drive no. 4 gear, drive the synchronous rotation of no. 2 stirring paddle in receiving hopper, this can before pottery soil raw materials enter vacuum extruder main part, utilize no. 1 stirring paddle and no. 2 stirring paddle to raw materials carry out double preliminary stirring, and effectively improved the raw material mixing uneven problem in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of vacuum extruder technology, and in particular to a horizontal-vertical combined type twin-screw vacuum extruder for large clay slabs. Background Technology

[0002] In the large-scale production of terracotta slabs, the horizontal-vertical combined twin-screw vacuum extruder plays a crucial role in overcoming the bottlenecks of traditional equipment in raw material processing, green body quality, and production efficiency. This innovative equipment integrates the raw material conveying and preliminary plasticizing capabilities of the horizontal unit with the vacuum degassing system of the vertical unit. Through the precise meshing of the twin screws, it achieves efficient material mixing while simultaneously removing air bubbles from inside the green body, forming an integrated "conveyor-plasticizer-degasser-extruder" process. This effectively solves the problems of easy cracking and uneven performance of terracotta slabs, significantly improving production efficiency and product qualification rate, and providing key technical support for the high-quality mass production of terracotta slabs.

[0003] However, in existing technologies, the screw engagement and pitch design of ordinary twin-screw structures are difficult to adapt to the characteristics of clay raw materials with different moisture content and viscosity. Furthermore, process parameters such as screw speed and temperature are not adjusted in real time according to the state of the raw materials, which exacerbates the unevenness of material mixing. This leads to an imbalance in the distribution of clay particles, additives, and moisture in the clay raw materials. During the plasticizing process, the raw materials cannot form a uniform colloidal structure, resulting in stress concentration inside the subsequently formed clay slab. This not only causes large fluctuations in the density, strength, and other mechanical properties of the finished product, but also generates internal stress during the firing process due to uneven heating, significantly increasing the probability of cracking and deformation of the slab, and seriously affecting the stability and pass rate of product quality. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a horizontal and vertical combined type of twin-screw vacuum extruder for large clay slabs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: It includes a vacuum extruder assembly, with a receiving hopper mounted above the assembly. The vacuum extruder assembly includes a vacuum extruder body, with a motor mounted at the end of the body. An auxiliary mixing mechanism is installed between the body and the motor. The auxiliary mixing mechanism includes a gearbox, a first gear, and a first stirring paddle. A second gear and a third gear are rotatably connected inside the gearbox, meshing with each other. The first gear is fixedly connected to the output end of the motor and meshes with the second gear. The first stirring paddle is rotatably connected to the receiving hopper, and one end of the first stirring paddle is fixedly connected to the third gear.

[0006] Preferably, a No. 4 gear is rotatably connected inside the gearbox, and a No. 2 stirring paddle is rotatably connected inside the receiving hopper. One end of the No. 2 stirring paddle is fixedly connected to the No. 4 gear, and the No. 4 gear meshes with the No. 3 gear.

[0007] Preferably, a cutting mechanism is provided at the end of the vacuum extruder body.

[0008] Preferably, the cutting mechanism includes a fixed frame, a cylinder is fixedly connected to the upper part of the fixed frame, and a cutting blade is fixedly connected to the bottom of the cylinder.

[0009] Preferably, a limiting rod is fixedly connected to the upper part of the cutting blade, and the limiting rod is slidably inserted into the fixing frame.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] 1. In this utility model, while the material is fed into the vacuum extruder body through the receiving hopper and the motor drives the vacuum extruder body to run, the motor can simultaneously drive the first gear inside the gearbox of the auxiliary mixing mechanism to rotate. The first gear meshes with and drives the second gear, which in turn drives the third gear and the first stirring paddle fixed therewith to rotate. At the same time, the third gear meshes with and drives the fourth gear, which drives the second stirring paddle in the receiving hopper to rotate synchronously. This allows the clay raw material to be double-pre-mixed by the first and second stirring paddles before entering the vacuum extruder body, effectively improving the problem of uneven mixing of raw materials in the prior art. This makes the clay particles, additives and moisture more evenly distributed, laying the foundation for the formation of a uniform colloidal structure in subsequent plasticization. This reduces the stress concentration phenomenon in the subsequent molding of large clay slabs and reduces the probability of cracking and deformation during firing.

[0012] 2. In this utility model, the auxiliary mixing mechanism relies on the power of the motor to achieve linkage, without the need for additional drive components. While improving the pretreatment effect of raw materials and ensuring the stability and pass rate of product quality, it also simplifies the equipment structure, avoids additional energy consumption, and further adapts to the needs of large-scale production of clay slabs.

[0013] 3. In this utility model, a fixed frame is used as the basic support. When the output of the vacuum extruder body reaches the set requirement, the cylinder can provide stable power to push the cutting blade downward and quickly complete the cutting of the extruded material. It can accurately match the set length requirement of the clay slab blank without manual intervention, which significantly improves the cutting efficiency. At the same time, the limiting rod fixed on the upper part of the cutting blade is slidably inserted into the fixed frame, which can strictly limit the offset direction of the cutting blade during its up and down movement, avoid the cutting trajectory from being skewed, ensure the cut is flat, and effectively reduce material waste or subsequent molding size deviation caused by cutting errors. Attached Figure Description

[0014] Figure 1This utility model presents a first three-dimensional structural schematic diagram of a horizontal-vertical combined twin-screw vacuum extruder for large clay slabs.

[0015] Figure 2 This utility model presents a second three-dimensional structural schematic diagram of a horizontal-vertical combined twin-screw vacuum extruder for large clay slabs.

[0016] Figure 3 This utility model presents a three-dimensional structural diagram of the No. 2 gear in a horizontal-vertical combined twin-screw vacuum extruder for large clay slabs.

[0017] Figure 4 This utility model presents a three-dimensional structural diagram of the cutting mechanism in a horizontal-vertical combined twin-screw vacuum extruder for large clay slabs.

[0018] Legend: 1. Vacuum extruder assembly; 11. Vacuum extruder body; 12. Motor; 2. Feed hopper; 3. Auxiliary mixing mechanism; 31. Gearbox; 32. Gear No. 1; 33. Gear No. 2; 34. Gear No. 3; 35. Gear No. 4; 36. Agitator No. 1; 37. Agitator No. 2; 4. Cutting mechanism; 41. Fixing frame; 42. Cylinder; 43. Cutting blade; 44. Limiting rod. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figure 1 - Figure 3As shown, this utility model provides a horizontal-vertical combined twin-screw vacuum extruder for large clay slabs, including a vacuum extruder assembly 1. A receiving hopper 2 is installed above the vacuum extruder assembly 1. The vacuum extruder assembly 1 includes a vacuum extruder body 11. A motor 12 is installed at the end of the vacuum extruder body 11. An auxiliary mixing mechanism 3 is installed between the vacuum extruder body 11 and the motor 12. The auxiliary mixing mechanism 3 includes a gearbox 31, a first gear 32, and a first stirring paddle 36. A second gear is rotatably connected inside the gearbox 31. Gear 33 and gear 34 mesh with gear 34. Gear 32 is fixedly connected to the output end of motor 12 and meshes with gear 33. Agitator 36 is rotatably connected to hopper 2 and one end of agitator 36 is fixedly connected to gear 34. Gear 35 is rotatably connected inside gearbox 31. Agitator 37 is rotatably connected inside hopper 2 and one end of agitator 37 is fixedly connected to gear 35. Gear 35 meshes with gear 34.

[0022] The specific settings and functions of this embodiment are described below: Material is added into the vacuum extruder body 11 through the receiving hopper 2, and the vacuum extruder body 11 is driven to work by the motor 12. While the motor 12 drives the vacuum extruder body 11 to run, it will drive the first gear 32 and the second gear 33 inside the gearbox 31 to rotate. At this time, the second gear 33 will drive the third gear 34 and the first stirring paddle 36 to rotate. Through the rotation of the first stirring paddle 36, the material inside the receiving hopper 2 can be pre-stirred before entering the vacuum extruder body 11.

[0023] While gear 34 drives impeller 1 to rotate, it will also drive gear 4 to rotate. At this time, gear 4 will drive impeller 2 to rotate, thus pre-stirring the raw materials.

[0024] While the vacuum extruder body 11 is fed through the receiving hopper 2 and driven by the motor 12, the motor 12 can simultaneously drive the first gear 32 inside the gearbox 31 of the auxiliary mixing mechanism 3 to rotate. The first gear 32 meshes with and drives the second gear 33, which in turn drives the third gear 34 and the first stirring paddle 36 fixed therewith to rotate. At the same time, the third gear 34 meshes with and drives the fourth gear 35, which drives the second stirring paddle 37 inside the receiving hopper 2 to rotate synchronously. This allows the first stirring paddle 36 and the second stirring paddle 37 to mix the clay raw material before it enters the vacuum extruder body 11. Double pre-mixing effectively improves the problem of uneven raw material mixing in existing technologies, making the distribution of clay particles, additives and moisture more uniform. This lays the foundation for the formation of a uniform colloidal structure during subsequent plasticization, thereby reducing stress concentration in the subsequently formed clay slab blanks and lowering the probability of cracking and deformation during firing. Furthermore, the auxiliary mixing mechanism 3 is linked by the motor 12, eliminating the need for additional drive components. While improving the pre-treatment effect of raw materials and ensuring product quality stability and pass rate, it also simplifies the equipment structure, avoids additional energy consumption, and further adapts to the needs of large-scale production of clay slabs.

[0025] Example 2: Figure 1 , Figure 2 and Figure 4 As shown, a cutting mechanism 4 is provided at the end of the vacuum extruder body 11. The cutting mechanism 4 includes a fixed frame 41. A cylinder 42 is fixedly connected to the upper part of the fixed frame 41. A cutting blade 43 is fixedly connected to the bottom of the cylinder 42. A limit rod 44 is fixedly connected to the upper part of the cutting blade 43. The limit rod 44 is slidably inserted into the fixed frame 41.

[0026] The overall effect of this embodiment is that when the output of the vacuum extruder assembly 1 reaches the set requirement, the cylinder 42 pushes the cutting blade 43 to move downward, thereby cutting the material at the end of the vacuum extruder body 11. During the process of the cylinder 42 driving the cutting blade 43 to move up and down, the limiting rod 44 slides along the fixed frame 41 to limit the up and down movement of the cutting blade 43.

[0027] With the fixed frame 41 as the base support, when the output of the vacuum extruder body 11 reaches the set requirement, the cylinder 42 provides stable power to push the cutting blade 43 downward, quickly completing the cutting of the extruded material. This allows for precise matching of the set length requirement of the clay slab blank without manual intervention, significantly improving cutting efficiency. Simultaneously, the limiting rod 44 fixed to the upper part of the cutting blade 43 slides into the fixed frame 41, strictly limiting its offset direction during the up-and-down movement of the cutting blade 43, preventing skewed cutting trajectories, ensuring a smooth cut, and effectively reducing material waste or subsequent dimensional deviations caused by cutting errors. The overall structure is simple and reliable. Relying on the dual protection of the cylinder 42 drive and the limiting rod 44, it not only improves the automation level of the cutting process but also ensures cutting quality, further adapting to the needs of continuous operation and precise shape control in the large-scale production of clay slabs, reducing labor costs and production losses.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A horizontal-vertical combined twin-screw vacuum extruder for large clay slabs, comprising a vacuum extruder assembly (1), wherein a receiving hopper (2) is installed above the vacuum extruder assembly (1), the vacuum extruder assembly (1) includes a vacuum extruder body (11), and a motor (12) is installed at the end of the vacuum extruder body (11), characterized in that: An auxiliary mixing mechanism (3) is installed between the vacuum extruder body (11) and the motor (12). The auxiliary mixing mechanism (3) includes a gearbox (31), a first gear (32), and a first stirring paddle (36). The gearbox (31) is rotatably connected to a second gear (33) and a third gear (34). The second gear (33) meshes with the third gear (34). The first gear (32) is fixedly connected to the output end of the motor (12), and the first gear (32) meshes with the second gear (33). The first stirring paddle (36) is rotatably connected to the receiving hopper (2), and one end of the first stirring paddle (36) is fixedly connected to the third gear (34).

2. The horizontal-vertical combined twin-screw vacuum extruder for large clay slabs according to claim 1, characterized in that: The gearbox (31) is rotatably connected to a fourth gear (35), and the receiving hopper (2) is rotatably connected to a second stirring paddle (37). One end of the second stirring paddle (37) is fixedly connected to the fourth gear (35), and the fourth gear (35) meshes with the third gear (34).

3. The horizontal-vertical combined twin-screw vacuum extruder for large clay slabs according to claim 1, characterized in that: The end of the vacuum extruder body (11) is provided with a cutting mechanism (4).

4. The horizontal-vertical combined twin-screw vacuum extruder for large clay slabs according to claim 3, characterized in that: The cutting mechanism (4) includes a fixed frame (41), a cylinder (42) is fixedly connected to the upper part of the fixed frame (41), and a cutting blade (43) is fixedly connected to the bottom of the cylinder (42).

5. A horizontal-vertical combined twin-screw vacuum extruder for large clay slabs according to claim 4, characterized in that: The upper part of the cutting blade (43) is fixedly connected to a limiting rod (44), and the limiting rod (44) is slidably inserted into the fixing frame (41).

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