Waxy rice cake preparation apparatus and method

Abstract

This invention relates to the field of steamer technology and discloses a glutinous rice cake preparation device and its preparation method. The glutinous rice cake preparation device includes: a rice cake raw material steamer, with several sets of dough steaming trays arranged longitudinally inside the rice cake raw material steamer. The dough steaming trays include: a dough steaming tray body, with a lifting plate movably arranged inside it. Several oscillating needle plates are arranged in an array on the lifting plate, and each oscillating needle plate is rotatably connected to the lifting plate; an array of rotating disks, each of which is correspondingly arranged above the oscillating needle plates and the two are concentrically aligned; two air-injecting needles are fixedly arranged on each set of oscillating needle plates. When the dough steaming tray body containing dough is placed in the rice cake raw material steamer, the lifting plate drives the air-injecting needles to pierce the dough through the rotating disks. This invention achieves simultaneous internal and external steaming of the dough by combining steaming from the outer periphery of the rice cake raw material steamer to the inside with convection steaming by air-injecting steam from the inside to the outside. This bidirectional steaming mode greatly shortens the steaming time.

Description

Technical Field

[0001] This invention relates to the field of steamers, and more specifically, to a glutinous rice cake preparation device and its preparation method. Background Technology

[0002] Glutinous rice cake, as a traditional food, is loved by the public for its unique taste and flavor. The traditional preparation of glutinous rice cake, especially in the steaming process, usually involves placing the glutinous rice dough directly into a steamer for steaming.

[0003] Traditional steaming methods rely primarily on external steam convection for heat transfer. However, steam cannot effectively penetrate the dough, resulting in uneven heating, slow internal cooking, and potentially overcooked or even sticky outer layers, negatively impacting the overall quality and texture of the glutinous rice cake. To address this, we propose a glutinous rice cake preparation device and method. Summary of the Invention

[0004] This invention provides a glutinous rice cake preparation device and preparation method, solving the technical problem in related technologies that steam is difficult to effectively penetrate into the dough, resulting in uneven heating of the dough and slow internal cooking speed.

[0005] The first aspect of this invention provides a glutinous rice cake preparation device, comprising: a rice cake raw material steamer, wherein a plurality of dough steaming tray mechanisms are arranged longitudinally within the rice cake raw material steamer, and the dough steaming tray mechanisms include:

[0006] The dough steaming tray has a lifting plate that is movable inside. Several oscillating needle plates are arranged in an array on the lifting plate, and each oscillating needle plate is rotatably connected to the lifting plate.

[0007] The array of rotating disks is arranged such that each disk is positioned above the oscillating pin disk, and the two disks are aligned concentrically.

[0008] The drive mechanism is used to control the oscillating dial to oscillate periodically at a preset angle;

[0009] Each set of rotating plates is equipped with two air-injecting needles. When the dough steaming tray containing the dough is placed inside the rice cake raw material steamer, the lifting plate drives the air-injecting needles to pierce the dough via the rotating plate. At this time:

[0010] The high-temperature steam generated by the rice cake raw material steamer steams the dough from the outside in.

[0011] The air injection needle sprays high-temperature steam into the dough from the inside out, creating convection to steam it.

[0012] The drive mechanism synchronously controls two air-injecting needles to reciprocate in a manner similar to pulling maltose, continuously injecting gas during the dough mixing process to achieve a gradient increase in the gas content inside the dough.

[0013] The drive mechanism includes several sets of drive pulleys, which are set on the side wall of the rice cake raw material steamer. Each drive pulley corresponds to a set of dough steaming tray mechanism. The drive pulleys can be connected to the drive motor of an external device.

[0014] The drive mechanism also includes an internal drive gear, which is fixedly connected to the external drive pulley. The internal drive gear is located inside the rice cake raw material steamer. A drive gear is located above the internal drive gear and is rotatably connected to the dough steaming tray. A cross arm is located at one end of the drive gear near the dough steaming tray, and an extension arm is located below the cross arm.

[0015] The bottom end of the extension arm is provided with a swing arm that runs through the side wall of the dough steaming tray. The swing arm is rotatably connected to the dough steaming tray. Rubber sheets are fixed around the swing arm and are used to seal the connection between the dough steaming tray and the swing arm. Several main pull wires are fixedly provided at the end of the swing arm away from the extension arm, and several branch wires are provided on the main pull wires. Each branch wire is fixedly connected to a swing needle plate.

[0016] The inner wall of the rice cake raw material steamer is fixedly equipped with several rebound columns, each rebound column corresponds to a dough steaming tray, and each rebound column is equipped with a steam nozzle below it. The steam nozzle is fixedly connected to the inner wall of the rice cake raw material steamer. The rear wall of the dough steaming tray is provided with a matching interface, and the matching interface corresponds one-to-one with the steam nozzle.

[0017] A guide rail is fixedly installed on the lower wall of the outer support edge of the dough steaming tray, and the guide rail is located behind the drive gear. The teeth fixedly installed on the lower wall of the guide rail match the tooth grooves of the drive gear.

[0018] The inside of the dough steaming tray is also equipped with a dough support wall, which is fixedly connected to the dough steaming tray. The dough support wall is parallel to the lifting plate. Several of them are embedded in the dough support wall as the turntable rotates. Two closed air bladders are fixedly embedded inside the turntable. The closed air bladders are aligned with the air pump needles. The outer wall of the air pump needle is equipped with several air jet holes, and the top of the air pump needle is fixedly equipped with a ball head.

[0019] The outer wall of the oscillating plate is equipped with a ball bearing and a slider. The ball bearing is rotatably connected to the oscillating plate, and the slider is fixedly connected to the oscillating plate. A resilient rope is fixedly installed on one side of the slider. A limit groove is also opened inside the lifting plate. The oscillating plate is rotatably connected to the limit groove through the ball bearing, and the end of the resilient rope away from the slider is fixedly connected to the inner wall of the limit groove.

[0020] A force-bearing block is fixedly installed on the lower wall of the lifting plate, and a push arm is installed on the rear side of the force-bearing block. The push arm is slidably connected to the lifting plate, and a spring column is fixedly installed inside the upper wall of the push arm. The push arm passes through the rear wall of the dough steaming tray.

[0021] A second aspect of the present invention provides a method for preparing glutinous rice cake using a glutinous rice cake preparation device, comprising the following steps:

[0022] S1. Connect the external drive motor to the drive pulley via a belt, and start the steam supply pump to preheat the rice cake raw material steamer to the set temperature.

[0023] S2. Spread the glutinous rice dough evenly on the rotating plate inside the dough steaming pan, ensuring that the dough covers the entire area of ​​the rotating plate.

[0024] S3. Manually push the dough steaming tray into the rice cake raw material steamer. When the drive gear meshes with the guide rail, the drive motor automatically drives the steaming tray to fully enter the cabinet, and the steam nozzle is simultaneously inserted into the interface.

[0025] S4. The rice cake raw material steamer injects high-temperature steam into the lower part of the dough support wall through the steam nozzle. The lifting arm is pushed up by the cabinet body, causing the lifting plate to rise and the air injection needle to pierce the dough.

[0026] The drive mechanism drives the pendulum plate to swing back and forth via the dividing disc ribbon, and the air injection needle sprays steam into the dough from the inside out, while stirring the dough to increase the gas gradient.

[0027] S5. After steaming, push the dough steaming tray to hit the rebound column, drive the gear to rotate in the opposite direction and drive the steaming tray to automatically exit, and close the air bag to prevent steam residue leakage.

[0028] The beneficial effects of this invention are as follows:

[0029] This invention combines steaming from the outer periphery of the rice cake raw material steamer inward with steam injection from the inside out via an air pump to create convection steaming, achieving simultaneous steaming of the dough inside and out. This two-way steaming mode greatly shortens the steaming time, improves production efficiency, and ensures that the dough is heated evenly, avoiding the problem of the outside being overcooked while the inside is undercooked.

[0030] The air injection needle continuously injects gas during the mixing of the dough and makes a back-and-forth oscillation similar to pulling maltose, which causes the gas content inside the dough to increase in a gradient. This not only helps the dough to fully mature, but more importantly, through physical mixing and gas injection, it improves the texture of the glutinous rice cake, giving it better fluffiness, elasticity and toughness, and a softer, chewier texture. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the dough steaming tray structure of the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of the air-inflating needle piercing the dough according to the present invention;

[0034] Figure 4 This is a schematic diagram of the side wall structure of the dough steaming tray of the present invention;

[0035] Figure 5 This is a partial cross-sectional structural diagram of the dough steaming tray of the present invention;

[0036] Figure 6 This is the invention Figure 5 Enlarged view of point A in the middle;

[0037] Figure 7 This is a schematic diagram of the lifting plate structure of the present invention;

[0038] Figure 8 This is a schematic diagram of the air inflator structure of the present invention;

[0039] Figure 9 This is the invention Figure 8 Enlarged diagram of point B in the middle.

[0040] In the diagram: 11. Rice cake ingredient steamer; 12. Drive wheel; 13. Drive gear; 14. Steam nozzle; 15. Swing arm; 16. Extension arm; 21. Dough steaming tray; 22. Dough support wall; 23. Rotating plate; 231. Closing air bladder; 24. Air inflator; 241. Ball head; 242. Air jet; 25. Connecting interface; 31. Lifting plate; 32. Swinging pin plate; 33. Main wire pulling mechanism; 34. Dividing wire pull mechanism; 35. Force block; 36. Pushing arm; 37. Spring column; 38. Rotating ball; 39. Slider; 301. Rebound rope; 302. Limiting groove; 41. Drive gear; 42. Guide rail; 43. Rebound column. Detailed Implementation

[0041] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0042] Example 1

[0043] like Figures 1-9 As shown, a glutinous rice cake preparation device includes: a rice cake raw material steamer 11, and a plurality of dough steaming tray mechanisms 2 arranged longitudinally inside the rice cake raw material steamer 11. The dough steaming tray mechanism 2 includes:

[0044] The dough steaming tray 21 has a lifting plate 31 that is movably installed inside. Several oscillating needle plates 32 are arranged in an array on the lifting plate 31, and each oscillating needle plate 32 is rotatably connected to the lifting plate 31.

[0045] The array of rotating disks 23 are arranged above the oscillating needle disk 32, and the two are co-centrically aligned.

[0046] The drive mechanism is used to control the oscillating dial 32 to oscillate periodically at a preset angle;

[0047] Each set of rotating needle plates 32 is fixedly equipped with two air-injecting needles 24. When the dough steaming tray 21 containing dough is placed inside the rice cake raw material steamer 11, the lifting plate 31 drives the air-injecting needles 24 to pierce the dough via the rotating plate 23. At this time:

[0048] The high-temperature steam generated by the rice cake raw material steamer 11 steams the dough from the outside in.

[0049] The air injection needle 24 injects high-temperature steam into the dough from the inside out to create convection and steam it until cooked.

[0050] The drive mechanism synchronously controls two air-injecting needles to perform a reciprocating oscillation similar to pulling maltose, continuously injecting gas during the dough stirring process to achieve a gradient increase in the gas content inside the dough.

[0051] The driving mechanism includes several sets of external driving wheels 12, which are set on the side wall of the rice cake raw material steamer 11. Each external driving wheel 12 corresponds to a set of dough steaming tray mechanism 2. The external driving wheel 12 can be connected to an external drive motor.

[0052] The drive mechanism also includes an internal drive gear 13, which is fixedly connected to the external drive pulley 12. The internal drive gear 13 is located inside the rice cake raw material steamer 11. A drive gear 41 is provided above the internal drive gear 13 and is rotatably connected to the dough steaming tray 21. A cross arm is provided at one end of the drive gear 41 near the dough steaming tray 21, and an extension arm 16 is provided below the cross arm.

[0053] The bottom end of the extension arm 16 is provided with a swing arm 15 that penetrates the side wall of the dough steaming tray 21. The swing arm 15 is rotatably connected to the dough steaming tray 21. Rubber sheets are fixedly provided around the swing arm 15, and the rubber sheets are used to seal the connection between the dough steaming tray 21 and the swing arm 15. Several main pull wires 33 are fixedly provided at the end of the swing arm 15 away from the extension arm 16, and several branch wires 34 are provided on the main pull wires 33. Each branch wire 34 is fixedly connected to a swing needle plate 32.

[0054] The inner wall of the rice cake raw material steamer 11 is fixedly provided with several rebound columns 43, each rebound column 43 corresponds to a dough steaming tray 21, and a steam nozzle 14 is provided below each rebound column 43. The steam nozzle 14 is fixedly connected to the inner wall of the rice cake raw material steamer 11. The rear wall of the dough steaming tray 21 is provided with a connecting interface 25, and the connecting interface 25 corresponds one-to-one with the steam nozzle 14.

[0055] A guide rail 42 is fixedly installed on the lower wall of the outer support edge of the dough steaming tray 21, and the guide rail 42 is located behind the drive gear 41. The teeth fixedly installed on the lower wall of the guide rail 42 match the tooth groove of the drive internal gear 13.

[0056] The dough steaming tray 21 is also provided with a dough support wall 22. The dough support wall 22 is fixedly connected to the dough steaming tray 21, and the dough support wall 22 is parallel to the lifting plate 31. Several of them are embedded in the dough support wall 22 as the turntable 23 rotates. Two closed air bladders 231 are fixedly embedded in the interior of the turntable 23. The closed air bladders 231 are aligned with the air pump needles 24. Several air jet holes 242 are provided on the outer wall of the air pump needles 24, and a ball head 241 is fixedly provided on the top of the air pump needles 24.

[0057] The outer wall of the oscillating plate 32 is provided with a rotating bead 38 and a slider 39. The rotating bead 38 is rotatably connected to the oscillating plate 32, and the slider 39 is fixedly connected to the oscillating plate 32. A resilient rope 301 is fixedly provided on one side of the slider 39. A limiting groove 302 is also provided inside the lifting plate 31. The oscillating plate 32 is rotatably connected to the limiting groove 302 through the rotating bead 38, and the end of the resilient rope 301 away from the slider 39 is fixedly connected to the inner wall of the limiting groove 302.

[0058] A force-bearing block 35 is fixedly installed on the lower wall of the lifting plate 31. A pusher arm 36 is installed on the rear side of the force-bearing block 35 and is slidably connected to the lifting plate 31. A spring column 37 is fixedly installed inside the upper wall of the pusher arm 36 and the pusher arm 36 passes through the rear wall of the dough steaming tray 21.

[0059] In use, firstly, the drive motor of the external device is connected to the drive pulley 12 via a belt, thereby driving the drive pulley 12 and the drive gear 41 to rotate. Then, the staff spreads the dough for making glutinous rice cakes on the rotating plate 23 in the dough steaming tray 21. The dough steaming tray 21 is then manually inserted into the rice cake raw material steaming cabinet 11. When the dough steaming tray 21 is inserted to the halfway position, the drive gear 41 contacts and meshes with the guide rail 42, thereby automatically driving the dough steaming tray 21 containing the dough into the rice cake raw material steaming cabinet 11.

[0060] When it is necessary to remove the dough steaming tray 21, the drive motor of the external device drives the drive gear 41 to rotate in the opposite direction. The staff only needs to apply external force to push the dough steaming tray 21, so that the dough steaming tray 21 hits the rebound post 43. This rebound post 43 is like the rebound component of the cabinet. After being hit, the rebound post 43 pushes the dough steaming tray 21 outward, and the guide rail 42 meshes with the drive gear 41 again, thereby automatically driving the dough steaming tray 21 out of the rice cake raw material steaming cabinet 11. The staff does not need to put their hands into the rice cake raw material steaming cabinet 11, and the staff can push the tray 21 to remove the desired dough steaming tray, so that it can be removed individually.

[0061] The drive pulley 12 is designed to be separate from the external motor, which facilitates maintenance and reduces the space occupied by the equipment.

[0062] The internal drive gear 13 meshes with the guide rail 42, enabling the steaming trays to automatically enter and exit the cabinet, avoiding human contact with the high-temperature environment and improving safety.

[0063] The steam nozzle 14 is directly inserted into the interface 25 to ensure that the steam is injected directionally into the lower part of the dough support wall 22, avoiding steam waste;

[0064] The rebound column 43 simulates the function of the cabinet rebound component, which can trigger the steaming tray to automatically retract with a single push, simplifying the operation process.

[0065] When the dough steaming tray 21 enters the rice cake raw material steamer 11 and reaches the designated position, the steam nozzle 14 is inserted into the interface 25. The steam nozzle 14 is connected to the steam supply pump of the rice cake raw material steamer 11, injecting high-temperature steam into the space below the dough support wall 22. The high-temperature steam entering this space has only one venting channel: the jet hole 242 on the air injection needle 24, so that it is sprayed into the dough.

[0066] When the dough steaming tray 21 enters the rice cake raw material steamer 11 and reaches the designated position, the rice cake raw material steamer 11 squeezes the lifting arm 36, causing the lifting arm 36 to slide below the force block 35, thereby pushing the lifting plate 31 to rise, so that all the air injection needles 24 pass through the closed air bladder 231 and pierce into the dough. When the air injection needles 24 retract, the closed air bladder 231 contains high air pressure, which can automatically close to prevent the dough from entering.

[0067] The closed airbag 231 automatically expands and seals the needle hole when the air needle 24 retracts, preventing dough from seeping into the bottom of the steaming tray and contaminating the equipment.

[0068] The top ball head 241 of the air injection needle 24 is designed to reduce insertion resistance, and the multi-porous distribution of the air jet holes 242 enables uniform steam diffusion.

[0069] The lifting plate 31 drives the air-injecting needle 24 to pierce the dough, and combined with the internal and external convection of steam, it significantly shortens the steaming time and improves efficiency.

[0070] The oscillating needle plate 32 and the rotating plate 23 are coaxially aligned to ensure that the air-injecting needle 24 is accurately inserted and passively rotates with the rotating plate 23, reducing the sticking of the dough to the steaming tray.

[0071] When the dough steaming tray 21 enters the rice cake raw material steamer 11 and reaches the designated position, the drive internal gear 13 disengages from the guide rail 42. At this time, the drive gear 41 contacts the drive internal gear 13, and the drive internal gear 13 drives the drive gear 41 to rotate. The cross arm of the drive gear 41 pushes the extension arm 16 back and forth, and the extension arm 16 drives the swing arm 15 to swing like a seesaw. Each swing pulls all the main wires 33 and the sub-wires 34, thereby pulling the swing needle plate 32 to rotate. Then, the swing needle plate 32 is reset by the re-spring rope 301. In this way, the air injection needle 24 drives the turntable 23 to rotate, and the rotation of the air injection needle 24 can stir the dough.

[0072] Example 2

[0073] A method for preparing glutinous rice cake using a glutinous rice cake preparation device includes the following steps:

[0074] S1. Connect the external drive motor to the drive pulley 12 via a belt, and start the steam supply pump to preheat the rice cake raw material steamer 11 to the set temperature.

[0075] S2. Spread the glutinous rice dough evenly on the rotating plate 23 inside the dough steaming tray 21, ensuring that the dough covers the entire area of ​​the needle plate 32.

[0076] S3. Manually push the dough steaming tray 21 into the rice cake raw material steamer 11. When the drive gear 41 meshes with the guide rail 42, the drive motor automatically drives the steaming tray to fully enter the cabinet, and the steam nozzle 14 is simultaneously inserted into the interface 25.

[0077] S4. The rice cake raw material steamer 11 injects high-temperature steam into the dough support wall 22 through the steam nozzle 14. The lifting arm 36 is pushed by the cabinet body to raise the lifting plate 31, so that the air injection needle 24 pierces the dough.

[0078] The drive mechanism drives the oscillating needle plate 32 to swing back and forth through the dividing wire 34, and the air injection needle 24 sprays steam into the dough from the inside to the outside, while stirring the dough to increase the gas gradient.

[0079] S5. After steaming, push the dough steaming tray 21 to hit the rebound column 43, drive the gear 41 to rotate in the opposite direction to drive the steaming tray to automatically exit, and close the air bag 231 to automatically close to prevent steam residue leakage.

[0080] The embodiments of the present invention have been described above, but the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of the present embodiments, all of which are within the protection scope of the present embodiments.

Claims

1. A glutinous rice cake preparation device, characterized in that, include: A rice cake ingredient steamer (11) has several sets of dough steaming tray mechanisms (2) arranged longitudinally inside it. The dough steaming tray mechanism (2) includes: The dough steaming tray (21) has a lifting plate (31) inside, and several oscillating needle plates (32) are arranged in an array on the lifting plate (31). Each oscillating needle plate (32) is rotatably connected to the lifting plate (31). The array of rotating disks (23) are arranged above the oscillating needle disk (32), and the two are aligned in a concentric axial direction. The drive mechanism is used to control the oscillating disc (32) to oscillate periodically at a preset angle; Two air-pressing needles (24) are fixedly installed on each set of needle plates (32). When the dough steaming tray (21) containing the dough is placed in the rice cake raw material steamer (11), the lifting plate (31) drives the air-pressing needles (24) to pierce the dough through the rotating plate (23). At this time: The high-temperature steam generated by the rice cake raw material steamer (11) steams the dough from the outside in; The air injection needle (24) injects high-temperature steam into the dough from the inside out to form convection steaming; The driving mechanism includes several sets of driving outer belt wheels (12), which are arranged on the side wall of the rice cake raw material steamer (11). Each driving outer belt wheel (12) corresponds to a set of dough steaming tray mechanism (2). The driving outer belt wheel (12) can be connected to the external driving motor. The driving mechanism also includes a driving internal gear (13), which is fixedly connected to the driving external pulley (12). The driving internal gear (13) is located inside the rice cake raw material steamer (11). A driving gear (41) is provided above the driving internal gear (13), and the driving gear (41) is rotatably connected to the dough steaming tray (21). A cross arm is provided at one end of the driving gear (41) near the dough steaming tray (21), and an extension arm (16) is provided below the cross arm. The bottom end of the extension arm (16) is provided with a swing arm (15) that penetrates the side wall of the dough steaming tray body (21). The swing arm (15) is rotatably connected to the dough steaming tray body (21). Rubber sheets are fixedly provided around the swing arm (15), and the rubber sheets are used to seal the connection between the dough steaming tray body (21) and the swing arm (15). A number of main wires (33) are fixedly provided at the end of the swing arm (15) away from the extension arm (16), and a number of branch wires (34) are provided on the main wires (33). Each branch wire (34) is fixedly connected to a swing needle plate (32). The drive mechanism synchronously controls the two air injection needles (24) to swing back and forth, continuously injecting gas during the process of stirring the dough, thereby achieving a gradient increase in the gas content inside the dough.

2. The glutinous rice cake preparation equipment according to claim 1, characterized in that, The inner wall of the rice cake raw material steamer (11) is fixedly provided with several rebound columns (43), each rebound column (43) corresponds to a dough steaming tray (21), and each rebound column (43) is provided with a steam nozzle (14) below it. The steam nozzle (14) is fixedly connected to the inner wall of the rice cake raw material steamer (11). The rear wall of the dough steaming tray (21) is provided with a connecting interface (25), and the connecting interface (25) corresponds one-to-one with the steam nozzle (14).

3. The glutinous rice cake preparation equipment according to claim 2, characterized in that, A guide rail (42) is fixedly provided on the lower wall of the outer support edge of the dough steaming tray (21), and the guide rail (42) is located behind the drive gear (41). The teeth fixedly provided on the lower wall of the guide rail (42) match the tooth groove of the drive internal gear (13).

4. The glutinous rice cake preparation equipment according to claim 3, characterized in that, The dough steaming tray (21) is also provided with a dough support wall (22) inside. The dough support wall (22) is fixedly connected to the dough steaming tray (21), and the dough support wall (22) is parallel to the lifting plate (31). Several of the rotating discs (23) are rotatably embedded in the dough support wall (22). Two closed air bladders (231) are fixedly embedded inside the rotating discs (23). The closed air bladders (231) are aligned with the air pump needles (24). Several air jet holes (242) are provided on the outer wall of the air pump needles (24), and a ball head (241) is fixedly provided on the top of the air pump needles (24).

5. The glutinous rice cake preparation equipment according to claim 4, characterized in that, The outer wall of the oscillating disc (32) is provided with a rotating bead (38) and a slider (39). The rotating bead (38) is rotatably connected to the oscillating disc (32), and the slider (39) is fixedly connected to the oscillating disc (32). A resilient rope (301) is fixedly provided on one side of the slider (39). A limiting groove (302) is also provided inside the lifting plate (31). The oscillating disc (32) is rotatably connected to the limiting groove (302) through the rotating bead (38), and the end of the resilient rope (301) away from the slider (39) is fixedly connected to the inner wall of the limiting groove (302).

6. The glutinous rice cake preparation equipment according to claim 5, characterized in that, A force-bearing block (35) is fixedly provided on the lower wall of the lifting plate (31). A push arm (36) is provided on the rear side of the force-bearing block (35), and the push arm (36) is slidably connected to the lifting plate (31). A spring column (37) is fixedly provided inside the upper wall of the push arm (36), and the push arm (36) passes through the rear wall of the dough steaming tray (21).

7. A method for preparing glutinous rice cake using the glutinous rice cake preparation equipment according to any one of claims 1-6, characterized in that, Includes the following steps: S1. Connect the external drive motor to the drive pulley (12) via a belt, and start the steam supply pump to preheat the rice cake raw material steamer (11) to the set temperature; S2. Spread the glutinous rice dough evenly on the rotating plate (23) inside the dough steaming tray (21), ensuring that the dough covers all areas of the oscillating plate (32); S3. Manually push the dough steaming tray (21) into the rice cake raw material steamer (11). When the drive gear (41) meshes with the guide rail (42), the drive motor automatically drives the steaming tray to fully enter the cabinet, and the steam nozzle (14) is simultaneously inserted into the interface (25). S4. The rice cake raw material steamer (11) injects high-temperature steam into the dough support wall (22) below through the steam nozzle (14). The lifting arm (36) is pushed by the cabinet body to raise the lifting plate (31), so that the air injection needle (24) pierces into the dough. The drive mechanism drives the oscillating needle plate (32) to swing back and forth through the dividing wire (34), and the air injection needle (24) injects steam into the dough from the inside to the outside, while stirring the dough to increase the gas gradient. S5. After steaming, push the dough steaming tray (21) to hit the rebound column (43), drive the gear (41) to rotate in the opposite direction to drive the steaming tray to automatically exit, and close the air bag (231) to automatically close to prevent steam residue leakage.

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