Aging device for making ground coffee

Abstract

The utility model belongs to the field of powder manufacturing equipment, concretely relates to a kind of maturation device of making powder, including barrel and the maturation screw of being set in barrel in matched, the front part lateral wall of barrel is equipped with feed inlet, the maturation screw is successively distinguished as feeding section, maturation section, extrusion section from front to back, the front end of maturation screw is connected with mounting base, it is characterized in that, the rear portion of maturation section is equipped with vice thread, the rotation direction of vice thread is same with main thread, the screw pitch of vice thread is greater than main thread, the tooth height of vice thread is lower than main thread, the start end and end of vice thread are connected with main thread.The utility model has realized that rice ball heats in addition, the maturation of powder machine generated by using the maturation device is more uniform, and the quality of powder taste is better, significantly improve the propelling force to rice ball material, to improve the rotation efficiency of screw, it is advantageous to energy saving.

Description

Technical Field

[0001] This utility model belongs to the field of flour production equipment, specifically relating to a maturation device for making flour. Background Technology

[0002] Rice noodle making is a type of strip-shaped food made from rice. The process typically involves washing, soaking, fermenting, grinding, pressing, semi-cooking, forming, pressing, and shaping the rice. If the pressing process doesn't involve further heating and cooking, the resulting product is semi-cooked rice noodles. These semi-cooked noodles need to be fully cooked and shaped by immersing them in boiling water (see utility model patent CN205947096U, "Rice Noodle Pressing Machine for Raw Rice Noodles"). To simplify the process, existing technologies combine heating and pressing. Some use a heat source on the outside of the press barrel, while others utilize the friction between the high-speed rotating screw and the raw material to generate heat. However, existing cooking devices suffer from high energy consumption, uneven cooking, and low efficiency. See utility model patent CN201393536Y, "Self-Cooking Rice Noodle Pressing Machine" (see [link]). Figure 3 Although the degree of maturation can be improved by increasing the compression ratio of the primary shaft (maturation screw), it is impossible to guarantee the uniformity of the raw material maturation, which affects the taste and quality of the powder. Utility Model Content

[0003] The purpose of this invention is to provide a simple and effective maturation device for making rice flour.

[0004] The technical solutions for achieving the above objectives include the following:

[0005] A maturation device for producing rice flour includes a barrel and a maturation screw installed inside the barrel. The front side wall of the barrel has a feed inlet. The maturation screw is divided into a feeding section, a maturation section, and an extrusion section from front to back. The front end of the maturation screw is connected to a mounting base. The rear part of the maturation section has a secondary thread. The rotation direction of the secondary thread is the same as that of the primary thread. The pitch of the secondary thread is greater than that of the primary thread, and the thread height of the secondary thread is lower than that of the primary thread. The starting end and the ending end of the secondary thread are connected to the primary thread.

[0006] Furthermore, the pitch of the secondary thread is 1.2 to 1.8 times that of the pitch of the primary thread.

[0007] Furthermore, the tooth height of the secondary thread is 0.5-0.9 times the compression height of the primary thread.

[0008] Furthermore, the curing screw is a double-ended screw with two main threads, a and b, and two auxiliary threads, c and d. The starting end of auxiliary thread c is connected to the main thread a, and the ending end of auxiliary thread c is connected to the main thread b. The starting end of auxiliary thread d is connected to the main thread b, and the ending end of auxiliary thread d is connected to the main thread a. Using a double-ended screw is beneficial to improving the curing efficiency of rice dough.

[0009] Furthermore, the front end is provided with a long lead thread with 6-10 starts, and the pitch of the long lead thread is 1.5-3 times that of the main thread. Providing a multi-start long lead thread on the front end helps prevent material from entering the root of the screw (connection part) and causing leakage that affects the screw's movement.

[0010] When the above-mentioned rice flour making maturation device is working, the semi-raw rice dough enters the barrel through the feed port on the barrel. As the maturation screw rotates at high speed, the material (semi-raw rice dough) passes through the feeding section, maturation section, and extrusion section in sequence. In the feeding section, the rice dough is loose and solid when it first enters the barrel. As the rice dough rubs against the screw groove wall and the inner wall of the barrel, the temperature of the rice dough rises and it gradually matures. When it reaches the maturation section, the rice dough in the screw groove is further matured. Since the auxiliary screw is set across the screw groove, the rice dough must cross the auxiliary screw as it is pushed backward. This is equivalent to the auxiliary screw stirring the rice dough in the screw groove, changing the state of the rice dough. The rice dough is heated inside and out, and the maturation of the rice dough is more uniform. The matured material continues to be pushed backward in the extrusion section and reaches the forming device.

[0011] This invention relates to a rice flour processing device that incorporates a secondary thread in the processing section of the screw. This facilitates the mixing of the passing material (rice clumps), achieving heating of the rice clumps from both inside and out. This overcomes the shortcomings of existing technologies where rice clumps in the center of the screw groove heat up slowly, while those adjacent to the screw groove wall and barrel wall (on the outside) heat up quickly, resulting in uneven processing. Rice flour produced by a mill using this device is more uniformly processed, resulting in better taste and quality. Furthermore, as the rice clumps transition from a loose to a processed state during feeding, processing, and extrusion, the pressure gradually increases. The secondary thread effectively prevents backflow of the rice clumps, significantly improving the propulsion force and thus increasing the screw's rotational efficiency, which helps save energy. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the external structure of the maturation device for producing rice flour, as shown in the embodiment.

[0013] Figure 2 This is a schematic diagram of the curing screw structure in an embodiment.

[0014] Figure 3 This is a structural diagram of a self-cooking flour milling machine in the prior art.

[0015] In the diagram, 1. Barrel; 1-1. Feed inlet; 2. Curing screw; 2-1. Main thread a; 2-2. Main thread b; 2-3. Secondary thread c; 2-4. Secondary thread d; 2-5. Front end. Detailed Implementation

[0016] The present invention will be described in detail below with reference to the embodiments.

[0017] See Figure 1 and Figure 2 A maturation device for producing rice flour includes a barrel 1 and a maturation screw 2 installed inside the barrel 1. The front side wall of the barrel 1 has a feed inlet 1-1. The maturation screw 2 consists of a feeding section, a maturation section, and an extrusion section from front to back. The front end 2-5 of the maturation screw 2 is connected to a mounting base. The maturation screw 2 is a double-ended screw with main threads a and b. In this embodiment, the main thread stroke is 90 mm. The rear part of the maturation section of the double-ended screw has auxiliary threads c and d. The rotation direction of the auxiliary thread is the same as that of the main thread. The starting end of the auxiliary thread c2-3 is connected to the main thread a2-1, and the ending end of the auxiliary thread c2-3 is connected to the main thread b2-2. The starting end of the auxiliary thread d2-4 is connected to the main thread b2-2, and the ending end of the auxiliary thread d2-4 is connected to the main thread a2-1. In this embodiment, the pitch of the auxiliary thread is 124.8 mm, which is 1.38 times that of the main thread, and the thread height of the auxiliary thread is 0.8 times that of the main thread. The front end head 2-5 of the curing screw in this embodiment is provided with 8 long lead threads, and the pitch of the long lead threads is 180 mm.

[0018] The cooking device in this embodiment uses a double-headed screw, which can apply a higher average shear rate and shear force to the conveyed rice dough material, thereby improving the cooking efficiency of the rice dough material. Secondary threads are provided in both screw grooves formed by the two main threads, ensuring that the rice dough material is stirred as it passes through the cooking section. This allows the rice dough material to rub against the screw groove walls and the inner wall of the barrel 1 from the inside out, resulting in more uniform heating. This effectively ensures uniform cooking of the rice noodles, resulting in a product with a better taste. The secondary threads also effectively prevent backflow of rice dough material in the extrusion section, significantly increasing the propulsion force on the rice dough material, thereby increasing the screw's rotational efficiency and saving energy. Production practice has proven that, consuming the same amount of electricity, the rice noodle machine using the cooking device of this invention produces more than 1.5 times the output of existing technologies.

Claims

1. A maturation device for producing rice flour, comprising a barrel and a maturation screw installed inside the barrel, wherein a feed inlet is provided on the front side wall of the barrel, and the maturation screw is divided into a feeding section, a maturation section, and an extrusion section from front to back, and the front end of the maturation screw is connected to a mounting base, characterized in that, The rear part of the curing section is provided with a secondary thread. The rotation direction of the secondary thread is the same as that of the main thread. The pitch of the secondary thread is greater than that of the main thread, and the tooth height of the secondary thread is lower than that of the main thread. The starting end and the ending end of the secondary thread are connected to the main thread.

2. The maturation device for producing flour according to claim 1, characterized in that, The pitch of the secondary thread is 1.2 to 1.8 times that of the main thread.

3. The maturation device for producing flour according to claim 1, characterized in that, The tooth height of the secondary thread is 0.5-0.9 times the compression height of the primary thread.

4. The maturation device for producing flour according to claim 1, characterized in that, The curing screw is a double-ended screw with two main threads, a and b. The auxiliary threads are c and d. The starting end of the auxiliary thread c is connected to the main thread a, and the ending end of the auxiliary thread c is connected to the main thread b. The starting end of the auxiliary thread d is connected to the main thread b, and the ending end of the auxiliary thread d is connected to the main thread a.

5. The maturation apparatus for producing flour according to claim 1, characterized in that, The front end is provided with 6-10 long lead threads, the pitch of which is 1.5-3 times that of the main thread.

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