A rice ball compacting and molding apparatus

Abstract

The utility model discloses a kind of rice ball forming equipment, including rack, driving device, intermittent driving mechanism, carousel, fixed bottom plate, motion conversion mechanism, linkage assembly, feeding mechanism, compacting mechanism and discharge mechanism. Single driving device is used to control carousel intermittent rotation and each execution mechanism linear action through mechanical linkage synchronous control. Driving device output shaft is connected cam divider by chain or belt drive to drive carousel, while the cam disc on this output shaft is synchronous lifting by lever mechanism with linkage rod, guide rod and hanger plate, so that feeding, compacting, discharge mechanism on hanger plate synchronous action when carousel is stationary. Carousel is arranged on fixed bottom plate, and only discharge station of bottom plate is provided with discharge port. The utility model simplifies structure, and through the mechanical hard connection of single driving device, the high synchronism and reliability of action are ensured, and it is convenient to disassemble and clean, and it is suitable for efficient, high-quality forming of rice ball with stuffing.

Description

Technical Field

[0001] This utility model relates to the field of food machinery processing, specifically to a rice ball pressing and forming device. Background Technology

[0002] Rice balls, especially triangular ones filled with meat, plum, or eel, are a popular product in modern fast food and convenience stores. The industrial production of these rice balls typically involves multiple processes, including rice preparation, filling addition, pre-forming, final pressing, and unloading. Among these, the pressing process is crucial to the final shape, density, and even distribution of the filling within the rice.

[0003] Currently, most rice ball pressing and forming machines on the market adopt a multi-motor drive combined with programmable logic controller (PLC) control. Specifically, an independent drive motor is usually used to handle the intermittent indexing rotation of the turntable, while multiple other cylinders or motors independently control linear actions such as feeding, pre-compression, secondary pressing, and discharging. The timing coordination of the actions of each actuator depends entirely on the PLC program control.

[0004] While this traditional technical solution can achieve basic functions, it has several inherent drawbacks: First, the electrical control system is complex and costly. The use of multiple motors, cylinders, and numerous sensors and solenoid valves makes the circuit connections complex, the control system programming and debugging cumbersome, and the equipment manufacturing and maintenance costs high. Second, there are issues with synchronization and reliability. The precision of the coordination between the actuators heavily depends on the PLC's scan cycle and electrical signal response speed. Under long-term, high-frequency operation, even small timing errors can accumulate and lead to incoordination, resulting in faults such as "air pressure" or "interference," which can affect product quality or even cause mechanical damage. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a novel rice ball pressing and forming device with a simpler structure, more concise control, more reliable operation, and easier cleaning and maintenance, thereby resolving the problems existing in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a rice ball forming device, comprising a frame and an intermittent rotating mechanism, a feeding mechanism, a pressing mechanism, and a discharging mechanism disposed on the frame, characterized in that: The device also includes a drive unit; The output end of the drive device is connected to the input end of an intermittent drive mechanism, and the output end of the intermittent drive mechanism drives a turntable to rotate intermittently. The output end of the drive device is also connected to a motion conversion mechanism; The motion conversion mechanism is simultaneously connected to the feeding mechanism, the pressing mechanism, and the discharging mechanism via a linkage component; The motion conversion mechanism is configured to synchronously drive the feeding mechanism, the pressing mechanism, and the discharging mechanism to perform linear motions through the linkage component when the turntable is stationary.

[0007] Furthermore, the driving device is a servo motor.

[0008] Furthermore, the intermittent drive mechanism is a cam divider.

[0009] Furthermore, the motion conversion mechanism is a cam mechanism, including a cam disk fixed to the output end of the drive device, and the cam disk is provided with a track groove configured to cause the linkage component to generate periodic reciprocating motion.

[0010] Furthermore, the linkage component includes: A lever, one end of which is pivotally hinged to the frame; A guide wheel is rotatably mounted on the lever body and fitted into the track groove; A linkage rod, one end of which is connected to the other end of the lever; Multiple guide rods, one end of each guide rod being connected to the lower end of the linkage rod; The hanger plate is detachably connected to the other end of each of the guide rods; The linear drive units of the feeding mechanism, the pressing mechanism, and the discharging mechanism are all mounted on the hanger plate.

[0011] Furthermore, the linear drive unit of the clamping mechanism includes at least one of a pre-pressing module and a secondary clamping module, wherein the pre-pressing module and / or the secondary clamping module includes a sleeve, which is fixedly installed on the hanger plate; A sliding rod is slidably inserted into the sleeve, and a push plate is connected to its lower end; An elastic element is sleeved outside the sliding rod, with its two ends abutting against the push plate and the sleeve, respectively.

[0012] Furthermore, a waist-shaped hole is formed on the wall of the sleeve, and a pin passes through the waist-shaped hole and is fixed to the sliding rod to limit the sliding stroke of the sliding rod relative to the sleeve.

[0013] Furthermore, the output end of the intermittent drive mechanism is provided with a mounting base, and the center of the turntable is provided with a foolproof mounting hole that matches the shape of the mounting base.

[0014] Furthermore, the top surface of the turntable is provided with at least two handles.

[0015] Furthermore, it also includes a control system and at least one sensing device; the sensing device is located near the feeding station and / or the discharging station for detecting the presence or absence of rice balls; the control system is electrically connected to the drive device and is configured to control the drive device to stop operating when an abnormal signal is received from the sensing device.

[0016] The beneficial effects of this utility model are as follows: 1. This utility model creatively employs a single servo motor as the sole power source for the entire machine. Through mechanical chain or belt transmission, cam divider, and cam lever linkage mechanism, a single rotary input is simultaneously converted into the intermittent indexing rotation of the turntable and the synchronous linear lifting motion of multiple actuators. This completely eliminates the need for multiple motors, cylinders, solenoid valves, and complex PLC control programs found in traditional equipment, greatly simplifying the electrical control system. This not only reduces hardware and software development costs but also minimizes potential failure points caused by numerous electrical components, thereby improving equipment reliability.

[0017] 2. High synchronization and coordination of movements are achieved through pure mechanical linkage, ensuring product quality and production stability. Since the rotation of the turntable and all pressing actions are driven by the same servo motor and rigidly linked through a mechanical structure (cam disc track groove contour), the timing coordination between each actuator is fixed and precise. This fundamentally eliminates the risk of asynchronous movements caused by signal delays and program scanning cycles when multiple motors drive independently. This ensures a high degree of consistency in the processing time, pressing force, and rhythm of the rice balls at each station, effectively guaranteeing the uniformity and stability of product forming quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the rice ball forming equipment.

[0019] Figure 2 This is a schematic diagram of the rice ball forming equipment from another perspective.

[0020] Figure 3 This is a schematic diagram of the intermittent drive mechanism connected to the turntable.

[0021] Figure 4 This is another perspective on the structural principle of the intermittent drive mechanism connected to the turntable.

[0022] Figure 5 This is a schematic diagram of the intermittent drive mechanism connecting to the mounting chassis.

[0023] Figure 6 This is a schematic diagram of the structural principle of the motion conversion mechanism driven by the drive device.

[0024] Figure 7This is another perspective on the structural principle of the motion conversion mechanism driven by the drive device.

[0025] Figure 8 This is a structural schematic diagram of the feeding mechanism, the pressing mechanism, and the discharging mechanism.

[0026] Reference numerals: 1. Frame; 2. Feeding mechanism; 3. Clamping mechanism; 4. Discharge mechanism; 5. Drive unit; 6. Intermittent drive mechanism; 7. Turntable; 71. Foolproof mounting hole; 72. Handle; 73. Station slot; 11. Mounting base; 12. Sensing device; 13. Fixed chassis; 14. Discharge port; 21. Feed push rod; 22. Feed push plate; 23. Feed plum blossom knob; 25. Feed pin hole; 31. Pre-compression module; 32. Secondary clamping module; 33. Sleeve; 34. Sliding rod; 35. Push plate; 36. Elastic element; 37. Waist-shaped hole; 41. Discharge top rod; 43. Discharge plum blossom knob; 42. Discharge push plate; 8. Motion conversion mechanism; 81. Cam plate; 82. Track groove; 83. Intermediate output shaft; 84. First sprocket; 85. Second sprocket; 86. Motor sprocket; 87. Third sprocket; 91. Lever; 92. Guide wheel; 93. Pivot; 94. Linkage rod; 95. Hanger plate; 96. Slide rail slider assembly; 10. Guide rod.

[0027] The preferred embodiments of the rice ball forming equipment of this utility model will be described in full and in detail below with reference to the accompanying drawings. This description is intended to fully disclose the technical solution of this utility model so that those skilled in the art can understand and implement this utility model. Detailed Implementation

[0028] like Figures 1 to 8 As shown, this rice ball forming equipment includes a frame 1, a drive unit 5, an intermittent drive mechanism 6, a turntable 7, a fixed base 13, a motion conversion mechanism 8, a linkage component 9, a feeding mechanism 2, a pressing mechanism 3, and a discharging mechanism 4. The frame 1 is welded from structural steel, forming the main supporting structure of the equipment, and each functional component is installed in its corresponding position on the frame 1.

[0029] The turntable 7 is a horizontally placed circular disc, fixedly mounted on the output end of the intermittent drive mechanism 6 (i.e., the cam divider) through a central foolproof mounting hole 71. Driven by the cam divider, the turntable 7 can perform precise, indexed intermittent rotational motion. Multiple triangular workstation slots 73 are evenly spaced along the edge of the turntable 7's circumferential surface; these slots 73 are used to hold rice balls during processing. The fixed base 13 is a key component, fixedly mounted on the frame 1 via a support frame, remaining stationary and not rotating with the turntable 7. The fixed base 13 is tightly attached to the underside of the turntable 7, functioning similarly to a "fixed base for a movable container." At most processing stations (such as the feeding station, pre-pressing station, and secondary pressing station), the solid upper surface of the fixed base 13 tightly encloses the bottom of the corresponding workstation slot 73 on the turntable 7, forming a complete receiving cavity to prevent the rice balls from falling out during the pressing process. The unique design of the fixed base 13 is that a single discharge port 14 is provided at a specific position on its circumference. When the turntable 7 carries a shaped rice ball that has completed the pressing process and rotates intermittently to a position aligned with this discharge port 14, the bottom of the work station trough 73 loses its support, forming an open channel.

[0030] The drive unit 5 employs a high-torque servo motor, which is bolted to the lower platform of the frame 1. Its output shaft is horizontally arranged. A motor sprocket 86 (or a pulley) is fixedly mounted on the output shaft of the servo motor via a key connection. Next to the servo motor, an intermediate output shaft 83 is supported by a bearing housing. Two sprockets are fixedly mounted side-by-side on this intermediate output shaft 83: a first sprocket 84 (or a pulley) and a second sprocket 85 (or a pulley). The motor sprocket 86 on the servo motor output shaft is connected to the first sprocket 84 on the intermediate output shaft 83 via a first chain (or a belt), forming the first stage of chain drive. The intermittent drive mechanism 6 employs a high-precision cam divider, which is fixedly mounted on the frame 1 via a base. A third sprocket 87 is mounted on the input shaft of the cam divider. The second sprocket 85 on the intermediate output shaft 83 is connected to the third sprocket 87 (or a pulley) on the input shaft of the cam divider via a second chain (or a belt), forming the second stage of chain drive.

[0031] The output end of the cam divider extends upwards and is equipped with a mounting base 11. This mounting base 11 has a non-circular structure, specifically a flange structure with a positioning key. A turntable 7 is horizontally positioned above the cam divider. The center of the turntable 7 has a foolproof mounting hole 71 that matches the shape of the mounting base 11, ensuring that the turntable 7 can only be installed in one correct orientation. In this embodiment, ten equally spaced workstation slots 73 are formed on the circumferential edge surface of the turntable 7. These workstation slots 73 have a triangular cross-section and are used to hold rice balls. Two stainless steel handles 72 are symmetrically installed on the upper surface of the turntable 7 near the foolproof mounting holes 71. The handles 72 are fixed to the turntable 7 with screws, facilitating the operator to lift the turntable 7 for cleaning and maintenance.

[0032] The motion conversion mechanism 8 includes a cam disk 81 fixedly mounted on the intermediate output shaft 83. A closed track groove 82 with a specific profile is machined on the end face of the cam disk 81. The profile curve of the track groove 82 is precisely calculated, and its radius variation is configured such that when the turntable 7 is rotating, the track groove 82 pushes the linkage component 9 to the lifting position; when the turntable 7 rotates to the position and stops, the track groove 82 drives the linkage component 9 to press down.

[0033] The linkage assembly 9 includes a lever 91, a guide wheel 92, a pivot 93, a linkage rod 94, a guide rod 10, and a hanger plate 95. The pivot 93 is fixedly mounted on the frame 1 via a bearing seat. One end of the lever 91 is fitted onto the pivot 93 and can rotate around it. The guide wheel 92 is mounted on the middle of the lever 91 via a bearing and is embedded in the track groove 82 of the cam disc 81. The other end (acting end) of the lever 91 is connected to one end of the laterally arranged linkage rod 94 via a hinge pin. The other end of the linkage rod 94 is fixed to the top ends of two vertically arranged guide rods 10 via a threaded connection. The upper ends of the two guide rods 10 are detachably connected to the hanger plate 95 via screws. To ensure smooth movement of the linkage rod 94, a slide rail slider assembly 97 is provided in the middle of the linkage rod 94. The slide rail is vertically fixed on the frame 1, and the slider is fitted with the linkage rod 94.

[0034] The linear drive units of the feeding mechanism 2, the clamping mechanism 3, and the discharging mechanism 4 are all mounted on the hanger plate 95. The feeding mechanism 2 includes a feeding push rod 21, the lower end of which is connected to a feeding push plate 22. The upper end of the feeding push rod 21 is detachably mounted on the hanger plate 95 via a feeding knob 23. A feeding positioning groove 24 along its length is provided on the feeding push rod 21, and a feeding pin hole 25 is correspondingly provided on one side of the hanger plate 95. A feeding pin passes through the feeding pin hole 25 and cooperates with the feeding positioning groove 24 to limit the rotation of the feeding push rod 21 and ensure that the feeding push plate 22 remains directionally stable during movement.

[0035] Similarly, the discharge mechanism 4 includes a discharge push rod 41, the lower end of which is connected to a discharge push plate 42. The upper end of the discharge push rod 41 is detachably mounted on the hanger plate 95 via a discharge knob 43. A discharge positioning groove along its length is provided on the discharge push rod 41, and a discharge pin hole is correspondingly provided on one side of the hanger plate 95. A discharge pin passes through the discharge pin hole and engages with the discharge positioning groove to restrict the rotation of the discharge push rod 41 and ensure that the discharge push plate 42 remains directionally stable during movement.

[0036] The clamping mechanism 3 includes a pre-clamping module 31 and a secondary clamping module 32. These two modules have the same structure, each including a sleeve 33, a sliding rod 34, a push plate 35, and an elastic element 36. The sleeve 33 is vertically fixed to the hanger plate 95 by bolts. The sliding rod 34 is slidably inserted into the sleeve 33, and the push plate 35 is fixed to the lower end of the sliding rod 34. The elastic element 36 is a stainless steel helical spring, sleeved on the outside of the sliding rod 34, with its two ends abutting against the push plate 35 and the lower end of the sleeve 33, respectively. A waist-shaped hole 37 is opened on the wall of the sleeve 33. A pin 38 passes through the waist-shaped hole 37 and is fixed to the sliding rod 34 to limit the maximum stroke of the sliding rod 34. At the same time, it effectively prevents the sliding rod 34 and the push plate 35 from rotating circumferentially during movement, ensuring that the push plate 35 remains correctly aligned with the triangular work slot 73 on the turntable 7 throughout the entire working cycle.

[0037] The equipment is also equipped with a control system and multiple sensing devices 12. The sensing devices 12 are photoelectric sensors, which are installed at key locations such as the feeding station and the discharging station to detect the presence or absence of rice balls. The control system uses a PLC controller, which is electrically connected to the sensing devices 12 and the servo motor. When an abnormal signal is detected, the equipment can be stopped immediately.

[0038] The working process of this utility model is described in detail below (taking four core workstations out of ten workstations as an example): Step 1: Feeding and initial compaction Driven by the cam divider, the turntable 7 rotates intermittently by 36 degrees, precisely stopping an empty workstation slot 73 below the feeding station (S1). At this time, the bottom of the workstation slot 73 is supported by the solid part of the fixed base 13. The external feeding device puts the loose rice ball with filling into the workstation slot 73. Then, the servo motor drives the cam disk 81 to rotate, which drives the hanging plate 95 and all its actuators to press down synchronously through the linkage component 9. The push plate of the feeding mechanism 2 located above the feeding station S1 moves downward, initially pushing and compacting the loose rice ball into the workstation slot 73.

[0039] Step 2: Step-by-step transfer and parallel operation

[0040] After feeding is complete, the turntable 7 rotates 36 degrees again. The station slot 73 that has just finished feeding moves to the next position (such as buffer station S2), while a new empty station slot 73 enters station S1 to receive the next rice ball. At the same time, the previously fed rice balls move forward one station synchronously with the turntable 7. This process is repeated continuously until all the station slots 73 on the turntable 7 are filled with rice balls, forming a continuous processing flow, until the rice balls reach the fourth station (S4). The first sensing device 12 (such as a photoelectric sensor) set at station S4 will detect whether there is a rice ball in the station slot 73. This detection signal is sent to the control system to confirm that the feeding process is normal. If no rice ball is detected at station S4, the control system can determine that the feeding has failed or that the rice ball has fallen off during the transfer, and may trigger an alarm or shutdown.

[0041] Step 3: Pre-compression and shaping

[0042] After passing the inspection at station S4, the rice ball continues to the pre-compression station (S5). After the turntable 7 stops, the hanger plate 95 and all actuators press down synchronously. The push plate 35 of the pre-compression module 31, cushioned by the spring 36, performs the first shaping of the rice ball. At this time, the push plate 35 of the pre-compression module 31, located above the pre-compression station S5, contacts the rice ball A and, cushioned by the spring 36, applies a moderate and gentle pressure, completing the first shaping and initially forming the basic outline of the rice ball.

[0043] Step 4: Secondary tightening

[0044] After pre-compression, turntable 7 continues to rotate 36 degrees, sending the pre-compressed rice ball A to the secondary pressing station (S6). After turntable 7 stops, all actuators press down again. The push plate 35 of the secondary pressing module 32 at this station applies final pressure to rice ball A, making it achieve the predetermined compactness and final triangular shape. During this process, subsequent rice balls also pass through the pre-compression station for processing.

[0045] Step 5: Discharge

[0046] The compressed rice ball is conveyed to the discharge station (S7) by a stepper motor. When the turntable 7 stops, the station slot 73 aligns with the discharge port 14 on the fixed base 13. During the synchronous downward pressing process, the push rod of the discharge mechanism 4 pushes the finished rice ball out of the station slot 73, allowing it to fall into the collection device through the discharge port 14. Under normal circumstances, the rice ball has been pushed out of the equipment at station S7. Subsequently, the empty station slot 73 continues to step to the eighth station (S8) and the ninth station (S9). The core function of the second sensor 12 set at station S9 is to perform safety monitoring: under normal equipment operation, since station S7 has successfully discharged, station S9 should be empty, so sensor 12 should not detect the rice ball. Only when discharge fails (such as when the rice ball is stuck in station slot 73 and not pushed out) will the rice ball be carried to station S9 and detected by sensor 12. Once the control system receives a signal of rice balls at station S9, it determines that there is a discharge jam fault and will immediately instruct the servo motor to stop running to prevent equipment damage.

[0047] Step 6: Continuous loop

[0048] After discharge, the empty workstation 73 continues to rotate with the turntable 7, returning to the feeding station S1 to begin a new cycle of feeding, pressing, and discharging. Due to the ten-station design, once the equipment enters a stable operating state, each rotation of the turntable stops, simultaneously completing the feeding of a new rice ball, the pre-pressing of a rice ball, the secondary pressing of a rice ball, and the discharge of a finished rice ball, thus achieving efficient and continuous parallel production. Throughout the process, sensors 12 installed at key workstations monitor the rice ball status in real time. If any abnormalities such as insufficient material or jamming are detected, the control system will immediately instruct the servo motor to stop, ensuring equipment safety.

[0049] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A rice ball pressing and forming device, comprising a frame (1) and an intermittent rotation mechanism, a feeding mechanism (2), a pressing mechanism (3) and a discharging mechanism (4) disposed on the frame (1), characterized in that: The device also includes a drive unit (5); The output end of the drive device (5) is connected to the input end of an intermittent drive mechanism (6), and the output end of the intermittent drive mechanism (6) drives a turntable (7) to rotate intermittently. The output end of the drive device (5) is also connected to a motion conversion mechanism (8); The motion conversion mechanism (8) is connected to the feeding mechanism (2), the pressing mechanism (3) and the discharging mechanism (4) simultaneously through a linkage component (9); The motion conversion mechanism (8) is configured to synchronously drive the feeding mechanism (2), the pressing mechanism (3) and the discharging mechanism (4) to perform linear motion through the linkage component (9) when the turntable (7) is stationary.

2. The rice ball pressing and forming equipment according to claim 1, characterized in that, The intermittent drive mechanism (6) is a cam divider.

3. The rice ball pressing and forming equipment according to claim 1, characterized in that, The motion conversion mechanism (8) is a cam mechanism, including a cam disk (81) fixed to the output end of the drive device (5), and the cam disk (81) is provided with a track groove (82) configured to cause the linkage component (9) to generate periodic reciprocating motion.

4. The rice ball pressing and forming equipment according to claim 3, characterized in that, The linkage component (9) includes: A lever (91), one end of which is hinged to the frame (1) via a pivot (93); The guide wheel (92) is rotatably mounted on the body of the lever (91) and fitted into the track groove (82); Linkage rod (94), one end of which is connected to the other end of the lever (91); Multiple guide rods (10), one end of each guide rod (10) is connected to the lower end of the linkage rod (94); The hanger plate (95) is detachably connected to the other end of each of the guide rods (10); The linear drive units of the feeding mechanism (2), the pressing mechanism (3) and the discharging mechanism (4) are all mounted on the hanger plate (95).

5. The rice ball pressing and forming equipment according to claim 4, characterized in that, The linear drive unit of the clamping mechanism (3) includes at least one of a pre-pressing module (31) and a secondary clamping module (32), wherein the pre-pressing module (31) and / or the secondary clamping module (32) includes: Sleeve (33) is fixedly installed on the hanger plate (95); A sliding rod (34) is slidably inserted into the sleeve (33), and its lower end is connected to a push plate (35). The elastic element (36) is sleeved on the outside of the sliding rod (34), and its two ends abut against the push plate (35) and the sleeve (33) respectively.

6. The rice ball pressing and forming equipment according to claim 5, characterized in that, The sleeve (33) has an oblong hole (37) on its wall. A pin passes through the oblong hole (37) and is fixed to the sliding rod (34) to limit the sliding stroke of the sliding rod (34) relative to the sleeve (33) and prevent the sliding rod (34) from rotating.

7. The rice ball pressing and forming equipment according to claim 4, characterized in that, The feeding mechanism (2) includes: A feed push rod (21) is connected to a feed push plate (22) at its lower end; A feed knob (23) is used to detachably mount the upper end of the feed push rod (21) onto the hanger plate (95); A feeding positioning groove (24) is provided along the length of the feeding push rod (21); The feed pin hole (25) is located on one side of the hanger plate (95) and corresponds to the feed positioning groove (24); A feed pin passes through the feed pin hole (25) and engages with the feed positioning groove (24) to restrict the rotation of the feed push rod (21) and ensure that the feed push plate (22) remains directionally stable during movement.

8. The rice ball pressing and forming equipment according to claim 4, characterized in that, The discharge mechanism (4) includes: The discharge push rod (41) has a discharge push plate (42) connected to its lower end; The discharge plum blossom knob (43) is used to detachably install the upper end of the discharge top rod (41) onto the hanger plate (95); The discharge positioning groove is formed along the length of the discharge top rod (41); The discharge pin hole is located on one side of the hanger plate (95) and corresponds to the discharge positioning groove; A discharge pin passes through the discharge pin hole and engages with the discharge positioning groove to restrict the rotation of the discharge push rod (41) and ensure that the discharge push plate (42) remains directionally stable during movement.

9. The rice ball pressing and forming equipment according to claim 1, characterized in that, The output end of the intermittent drive mechanism (6) is provided with a mounting base (11), and the center of the turntable (7) is provided with a foolproof mounting hole (71) that matches the shape of the mounting base (11).

10. The rice ball pressing and forming equipment according to claim 1, characterized in that, It also includes a control system and at least one sensing device (12); the sensing device (12) is located near the feeding station and / or the discharging station and is used to detect the presence or absence of rice balls; the control system is electrically connected to the drive device (5) and is configured to control the drive device (5) to stop running when it receives an abnormal signal from the sensing device (12).

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