An apparatus for automatically wrapping zongzi and a method of using the same

Abstract

This invention relates to an automatic rice dumpling wrapping device and its method of use, belonging to the technical field of rice dumpling processing equipment. The automatic rice dumpling wrapping device includes a frame, characterized in that a rice dumpling leaf conveying mechanism is installed on the frame, a rice dumpling leaf folding mechanism is installed at the discharge end of the rice dumpling leaf conveying mechanism, a turntable mechanism is installed to the side of the rice dumpling leaf folding mechanism, a rice dumpling box device is arranged on the edge of the turntable mechanism, and a filling mechanism and a binding and sealing mechanism are also arranged around the turntable mechanism. The various mechanisms of this application cooperate to achieve automation and mechanization of the triangular rice dumpling processing process.

Description

Technical Field

[0001] This invention relates to an automatic rice dumpling wrapping device and its usage method, belonging to the technical field of rice dumpling processing equipment. Background Technology

[0002] Zongzi (sticky rice dumplings) are a traditional delicacy, with the most common shape being triangular. Because the folding method of the bamboo leaves for triangular zongzi is not easily mechanized, their production is still largely manual. Manual production of triangular zongzi requires a large workforce, and to mechanize the processing, technicians in this field have been researching how to use machinery to produce them. Summary of the Invention

[0003] In view of the existing technology, a rice dumpling processing equipment is provided to automate the processing of triangular rice dumplings.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] An automatic rice dumpling wrapping device includes a frame, characterized in that a rice dumpling leaf conveying mechanism is installed on the frame, a rice dumpling leaf folding mechanism is installed at the discharge end of the rice dumpling leaf conveying mechanism, a turntable mechanism is installed on the side of the rice dumpling leaf folding mechanism, a rice dumpling box device is arranged on the edge of the turntable mechanism, and a filling mechanism is also arranged around the turntable mechanism.

[0006] The zongzi leaf folding mechanism includes a forming mold, which is installed at the end of the piston rod of the electric push rod. Clamping plate A and clamping plate B are hinged together. Clamping plate A is hinged to the piston rod of electromagnetic push rod A. Clamping plate B is hinged to the piston rod of electromagnetic push rod B. An upper limit plate is installed on the side of clamping plate A. The upper limit plate is installed on the upper crossbeam of a door frame by a servo motor.

[0007] The turntable mechanism includes a turntable, on which three zongzi box devices are arranged. Each zongzi box device includes a conical zongzi box, the bottom of which is fixedly connected to the rocker arm of a high-torque servo motor. A cover plate is installed on the top edge of the conical zongzi box, and the cover plate is installed on the conical zongzi box through a cover plate servo motor. A servo motor is installed on each side of the conical zongzi box.

[0008] The advantages of the above technical solution are:

[0009] Clamping plates A and B are approximately right-angled trapezoids, positioned opposite each other in a V-shape, with the hypotenuse facing outwards (towards the wheel module). Their roots are hinged to the frame, and the distance between the roots of clamping plates A and B is less than 2mm. Small holes are located near the roots of the two clamping plates on the left and right sides of the platform, with electromagnetic push rods A and B fixed to their bottoms. The push rods' pins extend from the small holes, pressing against the lower surfaces of clamping plates A and B, allowing them to rotate around their roots after being pushed out. A triangular pyramid forming mold is placed at the center of the "V" shape of clamping plates A and B. One generatrix of the pyramid is parallel to the plane. The forming mold is fixed to the top of the rear electric push rod column. Two servos with side pressure plates are placed on the hypotenuses of the two pressure plates, respectively. Another servo is mounted less than one centimeter above the mold, fixed to the outermost position by an arch-shaped bracket. The upper limit plate is an isosceles trapezoid, with its central axis coinciding with the axis of the electric push rod column.

[0010] The bamboo leaves are conveyed to the designated position by the outer rollers. The bamboo leaves are transported between two clamps and then divided into three steps.

[0011] (1) The two electromagnetic push rods below clamp A and clamp B are pushed out at the same time, so that the clamps on both sides close the bamboo leaves from the left and right sides of the mold respectively, so that the bamboo leaves are raised on both sides and close to the mold, while the bottom is approximately a line fixed on the plane.

[0012] (2) The two servo motors placed on the inclined sides of clamp A and clamp B are fastened inwards. The right pressure plate closes first, pressing the part of the zongzi leaf protruding from the inclined side of the right clamp onto the outward side of the mold. Then the left pressure plate also closes, pressing the part of the zongzi leaf protruding from the inclined side of the left clamp onto the outward side of the mold. At this time, the zongzi leaf is tightly attached to the three sides of the triangular pyramid, forming a bucket-shaped structure. Then the outer upper limit plate presses down, pressing the end (i.e., the head) of the zongzi leaf that is still facing upwards and protruding from the mold after two folds to a horizontal position.

[0013] (3) After the upper limit plate completes the pressing action, the electric push rod at the rear will push the formed zongzi leaf along with the mold into the conical zongzi box on the front wheel. The conical zongzi box is a triangular bucket-shaped opening mold. At the same time, the two side pressure plates on the left and right will open, but the upper limit plate will remain pressed down to ensure that the bucket-shaped structure of the zongzi leaf will not fall apart. After successful pushing, the two servo motors on the side of the conical zongzi box will buckle inward to hold the zongzi leaf in place. Then the electric push rod will drive the mold back to the initial position, leaving the formed zongzi leaf in the triangular bucket-shaped opening mold.

[0014] The turntable mechanism consists of a wheel, a keyed shaft beneath the wheel, and a 57-stepper motor mounted at the bottom of the wheel. A conical rice dumpling box is placed at 120° intervals on the wheel. Each conical rice dumpling box is a triangular funnel-shaped mold, shaped like an oblique triangular pyramid, with the opening on the base of the pyramid, forming an isosceles triangle. The purpose of the conical rice dumpling box is to shape the folded rice dumpling leaves. Each conical rice dumpling box is fixed to a square connecting block with its opening facing upwards. The bottom of the connecting block has a groove that engages with a high-torque servo motor rocker arm. The high-torque servo motor drives the upper conical rice dumpling box to rotate vertically, and finally, the high-torque servo motor is fixed to the edge of the wheel. Servo motors are placed on both sides and the rear of the conical rice dumpling box to control and fix the rice dumpling leaves inside. A rice dumpling leaf cover is fixed to the rear servo motor rocker arm to close the rice dumpling. The wheel is made of acrylic material with a round hole and keyway in the center. The central shaft can be connected to a roller via a key. The shaft is thinner at both ends and has a thicker shoulder in the middle. The upper end has a keyway to mate with the wheel, and the lower end is connected to the output shaft of the 57 stepper motor via a coupling. When installing the wheel, the lower surface fits tightly against the upper surface of the shoulder, and the upper surface is pressed together with an end cap to fix it axially.

[0015] Based on the above technical solution, this application makes the following improvements and enhancements to the above technical solution:

[0016] Furthermore, the forming mold is a triangular pyramid, and a connecting block with a U-shaped groove is provided on the forming mold, with a connecting pin installed in the groove of the connecting block.

[0017] The beneficial effect of the above-mentioned technical features in this application is that the connection block facilitates the connection between the molding die and the electric push rod.

[0018] Furthermore, the conical rice dumpling box includes an open, corner-cut box body, a movable angle that fits into the open, corner-cut box body, and a rotating plate at the bottom of the open, corner-cut box body.

[0019] The beneficial effect of the above-mentioned technical features in this application is that: the opening of the conical rice dumpling box is provided with an interactive angle that can be opened and closed, so that the wire can be tied in the open position when the wire is tied later.

[0020] Furthermore, clamping plates A and B are right-angled trapezoidal plates, and servo motors are installed on the hypotenuses of clamping plates A and B, with pressure plates installed on the rocker arms of the servo motors; a slanted baffle is provided on clamping plate B; and a servo motor is installed at the end of the hinge shaft connecting clamping plates A and B.

[0021] The beneficial effects of the above-mentioned technical features in this application are: the inclined sides of clamping plate A and clamping plate B cooperate with the inclined sides of the forming module, and the servo motors on clamping plate A and clamping plate B are used to clamp the zongzi leaves and make the zongzi leaves bend.

[0022] Furthermore, the filling mechanism includes a hopper, with a downward conveying pipe at the center of the hopper, and a horizontally inserted baffle plate at the lower end of the conveying pipe. The baffle plate is installed at the piston rod end of the baffle electromagnetic push rod. A threaded rod is installed at the center of the conveying pipe, and a driven bevel gear is installed at the top of the threaded rod. The driven bevel gear meshes with the driving bevel gear at the end of the output shaft of the anti-blocking motor. The smooth section of the threaded rod is inserted into the mounting tube.

[0023] The beneficial effects of the above-mentioned technical features in this application are as follows: The filling mechanism consists of a hopper, a conveying pipe, an anti-blocking mechanism, and a blocking mechanism, which are placed vertically from top to bottom. The uppermost anti-blocking mechanism is powered by an anti-blocking motor (which is a stepper motor) through a drive bevel gear and a driven bevel gear. This enables the anti-blocking motor to control the rotation of the threaded rod. The threaded section of the threaded rod is located inside the conveying pipe, and the rotating threaded rod can prevent material from blocking the conveying pipe. The blocking electromagnetic push rod controls the blocking plate to open and close the conveying pipe, controlling the outflow of material. The turntable transports the zongzi leaves formed at the zongzi leaf folding mechanism to the bottom of the conveying pipe from the palm box device to receive the material. After receiving the material, the cover plate servo motor is activated to seal the zongzi leaves.

[0024] Furthermore, a wire-binding and sealing mechanism is arranged around the turntable mechanism. The wire-binding and sealing mechanism includes an L-shaped rotating arm. The end of the vertical rod of the L-shaped rotating arm is mounted on a servo motor. The other end of the vertical rod is mounted below the drive slider via a servo motor. The drive slider is mounted on a lead screw, and the end of the lead screw is connected to a drive motor. An L-shaped bracket is set at the corner of the L-shaped rotating arm. Circular holes are provided on both walls of the L-shaped bracket. A spool is set at the fixed end of the L-shaped rotating arm. The vertical spool is mounted on the lower base plate and is located in front of the extended end of the L-shaped rotating arm. A heat sealer is mounted on the lower base plate and is located at the front end of the extended arm of the L-shaped rotating arm. A wire guide ring is set at the end of the extended end of the L-shaped rotating arm.

[0025] The beneficial effects of the above-mentioned technical features in this application are:

[0026] A rope is looped in the collar of the L-shaped binding mechanism on the side, and the other end of the rope is fixed to a pressure push rod to hold the rope in place and prevent it from loosening. When binding the rope, the upper lead screw pushes the entire binding arm to the designated position. The L-shaped frame mechanism is rotated by using a 360-degree servo motor to wind the rope around the rice dumpling.

[0027] Then, the 360 ​​servo controls the L-shaped arm to rotate to a certain position (ensuring that the line and the pressure push rod are on the same horizontal plane, so that the line can be accurately pushed into the clamp of the pressure push rod). Then, the lead screw rotates to push the entire mechanism forward, sending the line to the pressure push rod (at the same time, the pressure push rod rises to form a clamp). After that, the pressure push rod falls down to press the line, and then the heat sealing machine seals and cuts the line.

[0028] After the wire is cut, the lead screw moves, and the servo motor of the L-shaped rod moves, causing the entire mechanism to return to its initial position. The wire itself is wound around the spool of the L-shaped rod, with roughly equal mass on both sides to ensure balance. It will not get tangled during rotation.

[0029] Finally, the triangular mold rotates clockwise, allowing the rice dumpling to slowly slide out of the mold and fall onto a conveyor track or box via an inclined plane.

[0030] Furthermore, the zongzi leaf conveying mechanism includes a zongzi leaf box, inside which is an inclined tray. The feeding section of the tray is hinged to the bottom of the inner side of the zongzi leaf box. A spring is installed below the discharge end of the tray, and an inner rotating roller is installed above the discharge end of the tray. A discharge port is provided on the side wall of the zongzi leaf box at the discharge end of the tray. A zongzi leaf slide is installed at the discharge port of the zongzi leaf box, and an outer rotating roller is installed on the zongzi leaf slide. The inner rotating roller is connected to an inner rotating roller motor, and the outer rotating roller is connected to an outer rotating roller motor. A vertical baffle is provided at the end of the zongzi leaf slide.

[0031] The beneficial effects of the above-mentioned technical features in this application are:

[0032] The bamboo leaves are arranged neatly, with the head facing forward (we call the stiffer end of the stem the "head," and the other end the "tail"), fed in from the rear tray. There are two springs at the bottom front of the tray. The springs serve two purposes: first, to support the tray, raising one end; and second, to keep the bamboo leaves close to the inner roller shaft above. The inner roller shaft is a rubber roller, and the bamboo leaf cover and the inner roller shaft are at the same height to prevent the bamboo leaves from tilting during transport and reducing conveying efficiency. The upper inner roller shaft works in conjunction with an external photoelectric sensor. When the external light is cut off, the inner roller shaft starts rotating, transporting the bamboo leaves out. Once the bamboo leaves have been transported out, a laser-connected control activates the outer roller motor, stopping the inner roller motor. This allows the bamboo leaves to be individually conveyed.

[0033] The zongzi leaf conveyor includes an inclined channel, an outer roller motor mounted above the inclined channel, two electromagnetic push rods, and two springs. The shaft of the outer roller is fixed on a platform with one end supported by a spring and the other end hinged to a fixed plane. When the photoelectric switch detects that the zongzi leaf enters from the inlet, the two push rods above the spring-supported side will be pushed out, thereby pressing the zongzi leaf output from the conveyor box onto the inclined surface of the channel for further conveying.

[0034] Meanwhile, the equipment described in the above technical solution is used to process zongzi (sticky rice dumplings).

[0035] The advantage of this application is that it enables the automation and mechanization of the triangular rice dumpling processing process through cooperation between various institutions. Attached Figure Description

[0036] Figure 1This is a three-dimensional structural diagram of an automatic rice dumpling wrapping device according to this application;

[0037] Figure 2 A schematic diagram of the installation structure of the bamboo leaf conveying mechanism and the bamboo leaf folding mechanism;

[0038] Figure 3 This is a cross-sectional view of the internal structure of the bamboo leaf box;

[0039] Figure 4 This is a schematic diagram of the installation structure of clamping plate A, clamping plate B, and forming mold;

[0040] Figure 5 This is a schematic diagram showing the installation relationship of the upper positioning plate, clamp A, and clamp B.

[0041] Figure 6 Schematic diagram of the molding die and electric push rod installation structure;

[0042] Figure 7 This is a schematic diagram of the molding die;

[0043] Figure 8 This is a schematic diagram of the installation structure of clamp A and clamp B;

[0044] Figure 9 This is a schematic diagram of the servo motor.

[0045] Figure 10 This is a three-dimensional structural diagram of the turntable mechanism;

[0046] Figure 11 A three-dimensional structural diagram of the brown box device;

[0047] Figure 12 This is a schematic diagram of the open end structure of the palm box device;

[0048] Figure 13 This is a schematic diagram of the zongzi box device;

[0049] Figure 14 This is a three-dimensional structural diagram of the packing mechanism;

[0050] Figure 15 A three-dimensional structural diagram of the binding and sealing mechanism;

[0051] Figure 16 This is a schematic diagram of the L-shaped swing arm.

[0052] The attached diagram is labeled as follows: Zongzi leaf conveying mechanism-1, Zongzi leaf folding mechanism-2, Turntable mechanism-3, Filling mechanism-4, Binding and sealing mechanism-5, Steering motor-6;

[0053] Zongzi leaf box - 1.1, Zongzi leaf cover plate - 1.2, Inner rotating roller motor - 1.3, Outer rotating roller motor - 1.4, Inner rotating roller - 1.31, Zongzi leaf slide - 1.5, Vertical baffle - 1.6, Support plate - 1.7, Spring - 1.8;

[0054] Electric push rod - 2.1, upper limit plate - 2.2, forming mold - 2.3, connecting block - 2.31, connecting pin - 2.32, clamping plate A - 2.4, electromagnetic push rod A - 2.5, clamping plate B - 2.6, inclined baffle - 2.61, electromagnetic push rod B - 2.7;

[0055] Turntable - 3.1, Zongzi box device - 3.2, Conical Zongzi box - 3.21, High torque servo motor - 3.22, Cover plate servo motor - 3.23, Cover plate - 3.24;

[0056] Opening corner missing box body - 3.2101, movable corner - 3.2102, box body rotating plate - 3.2103;

[0057] Anti-blocking motor - 4.1, driving bevel gear - 4.2, driven bevel gear - 4.3, mounting tube - 4.4, threaded rod - 4.5, hopper - 4.6, conveying pipe - 4.7, material blocking electromagnetic push rod - 4.8, material blocking plate - 4.9;

[0058] Drive motor - 5.1, lead screw - 5.2, drive slider - 5.3, L-shaped rotating arm - 5.4, heat sealing machine - 5.5, vertical shaft - 5.6, lower seat plate - 5.7, horizontal shaft - 5.8, guide bar - 5.9, guide bar slider - 5.10;

[0059] Rotary arm -6.1, servo motor A611. Detailed Implementation

[0060] The following embodiments, in conjunction with the accompanying drawings, are merely for illustrating the technical solutions described in the claims and are not intended to limit the scope of protection of the claims.

[0061] An automatic rice dumpling wrapping device, (in conjunction with attached) Figure 1 The device includes a frame on which a bamboo leaf conveying mechanism 1 is installed. A bamboo leaf folding mechanism 2 is installed at the discharge end of the bamboo leaf conveying mechanism 1. A turntable mechanism 3 is installed on the side of the bamboo leaf folding mechanism 2. A bamboo box device 3.2 is arranged on the edge of the turntable mechanism 3. A filling mechanism 4 and a binding and sealing mechanism 5 are also arranged around the turntable mechanism 3.

[0062] Combination Figure 2 , 3The zongzi leaf conveying mechanism 1 includes a zongzi leaf box 1.1, inside which is an inclined support plate 1.7. The feeding section of the support plate 1.7 is hinged to the bottom of the inner side of the zongzi leaf box 1.1. A spring 1.8 is installed below the discharge end of the support plate 1.7, and an inner rotating roller 1.31 is installed above the discharge end of the support plate 1.7. A discharge port is provided on the side wall of the zongzi leaf box 1.1 at the discharge end of the support plate 1.7. A zongzi leaf slide 1.5 is installed at the discharge port of the zongzi leaf box 1.1, and an outer rotating roller is installed on the zongzi leaf slide 1.5. The inner rotating roller 1.31 and the inner rotating roller are connected. The roller motor 1.3 is connected, and the outer roller is connected to the outer roller motor 1.4; the end of the zongzi leaf slide 1.5 is provided with a vertical baffle 1.6; the two ends of the outer roller are mounted on the short beam through bearing seats, and floating springs are installed below the short beam. The outer roller motor 1.4 is also mounted on a floating platform. The two ends of the short beam are mounted on the frame through electromagnetic push rods. The electromagnetic push rods are fixed on the frame. The distance between the outer roller and the bottom plate of the zongzi leaf slide 1.5 is adjusted by the electromagnetic push rods to facilitate the zongzi leaf to slide under the outer roller, making it easier for the outer roller to drive the zongzi leaf.

[0063] Combined with appendix Figure 2 , 4 -9, the zongzi leaf folding mechanism 2 includes a forming mold 2.3, which is installed at the end of the piston rod of the electric push rod 2.1. Clamping plate A2.4 is hinged to clamping plate B2.6, clamping plate A2.4 is hinged to the piston rod of electromagnetic push rod A2.5, and clamping plate B2.6 is hinged to the piston rod of electromagnetic push rod B2.7. An upper limit plate 2.2 is installed on the side of clamping plate A2.4, and the upper limit plate 2.2 is installed on the upper crossbeam of a door frame via a servo motor. A servo motor 6 is installed on clamping plate A2.4 and clamping plate B2.6 respectively, and a pressure plate is provided on the rotating arm of each servo motor 6. The pressure plate is used to press down the zongzi leaf.

[0064] The forming mold 2.3 is a triangular pyramid, and a connecting block 2.31 with a U-shaped groove is provided on the forming mold 2.3. A connecting pin 2.32 is installed in the groove of the connecting block 2.31. The clamping plates A2.4 and B2.6 are right-angled trapezoidal plates. A servo motor 6 is installed on the hypotenuse of the clamping plates A2.4 and B2.6, and a pressure plate is installed on the rocker arm of the servo motor 6. An inclined baffle 2.61 is provided on the clamping plate B2.6. A servo motor A611 is installed at the end of the hinge shaft connecting the clamping plates A2.4 and B2.6.

[0065] Combined with appendix Figure 10-13The turntable mechanism 3 includes a turntable 3.1, on which three zongzi box devices 3.2 are arranged. Each zongzi box device 3.2 includes a conical zongzi box 3.21, the bottom of which is fixedly connected to the rocker arm of a high-torque servo motor 3.22. A cover plate 3.24 is installed on the top edge of the conical zongzi box 3.21, and the cover plate 3.24 is installed on the conical zongzi box 3.21 through a cover plate servo motor 3.23. A servo motor is installed on each side of the conical zongzi box 3.21. The conical zongzi box 3.21 includes an open-corner box body 3.2101 and a movable angle 3.2102 that is assembled with the open-corner box body 3.2101. A box body rotating plate 3.2103 is provided at the bottom of the open-corner box body 3.2101. Turntable 3.1 is mounted on the frame below via a servo motor, which controls the rotation of turntable 3.1. Cover plate 3.24 has a trapezoidal structure, with the short side of cover plate 3.24 located at the corner of the notched box 3.2101. When steel plate 3.24 is closed, the movable corner 3.2102 can be opened to expose a corner of the zongzi for easy binding. To facilitate the control of the opening and closing of the movable corner 3.2102, a servo motor is installed on the notched box 3.2101, and the swing arm of the servo motor is fixedly connected to the movable corner.

[0066] Combined with appendix Figure 14 The filling mechanism 4 includes a hopper 4.6, with a downward conveying pipe 4.7 at the center of the hopper 4.6. A horizontally inserted baffle plate 4.9 is installed at the lower end of the conveying pipe 4.7 and is mounted on the piston rod end of the baffle electromagnetic push rod 4.8. A threaded rod 4.5 is installed at the center of the conveying pipe 4.7, and a driven bevel gear 4.3 is installed at the top of the threaded rod 4.5. The driven bevel gear 4.3 meshes with the driving bevel gear 4.2 at the end of the output shaft of the anti-blocking motor 4.1. The smooth section of the threaded rod 4.5 is inserted into the mounting tube 4.4. A bearing is installed at the end of the mounting tube 4.4, and the mounting tube 4.4 is mounted on the frame through a bearing seat.

[0067] Combined with appendix Figure 15-16The binding and sealing mechanism 5 includes an L-shaped rotating arm 5.4. The end of the vertical rod is mounted on the L-shaped rotating arm 5.4 via a servo motor, which drives the L-shaped rotating arm 5.4 to rotate. The other end of the vertical rod is mounted below the drive slider 5.3 via a servo motor, enabling the vertical rod to rotate. The rotation of the vertical rod allows the L-shaped rotating arm to swing. The drive slider 5.3 is mounted on a drive screw 5.2, the end of which is connected to a drive motor 5.1. An L-shaped bracket is provided at the corner of the L-shaped rotating arm 5.4, with round holes on both sides of the bracket. A horizontal shaft 5.8 is provided at the fixed end of the L-shaped rotating arm 5.4. The spool 5.6 is mounted on the lower seat plate 5.7, and the vertical spool 5.6 is located in front of the extended end of the L-shaped rotating arm 5.4; the heat sealer 5.5 is mounted on the lower seat plate 5.7, and is located at the front end of the extended arm of the L-shaped rotating arm 5.4; a guide ring is provided at the end of the extended end of the L-shaped rotating arm 5.4, and a guide bar 5.9 is arranged parallel to the drive screw 5.2. A guide bar slider 5.10 is installed on the guide bar 5.9, and the guide bar slider 5.10 and the drive slider 5.3 are fixedly connected by a connecting plate; the vertical spool 5.6 is installed below the heat sealer 5.5; a material discharge port is provided on the lower seat plate 5.7, and a material discharge inclined plate is installed at the material discharge port.

[0068] The above-mentioned equipment processes zongzi (sticky rice dumplings) in the following way:

[0069] Step 1: Straighten the bamboo leaves and feed them into the bamboo leaf box 1.1 from the side inlet. The ends of the bamboo leaves are held between the tray 1.7 and the inner roller 1.31.

[0070] Step 2: Start the inner roller motor 1.3. The inner roller motor 1.3 rotates, driving the bamboo leaves to be output laterally from the discharge port of the bamboo leaf box 1.1. A photoelectric sensor is installed at the discharge port. The bamboo leaves are detected by the external photoelectric sensor to monitor their movement. The bamboo leaves move along the bamboo leaf slide 1.5 and their ends move to the bottom of the outer roller. The two ends of the outer roller are mounted on the short beam through bearing seats. The two ends of the short beam are slidably mounted on the frame. The push rod end of the electromagnetic push rod is connected to the short beam. The electromagnetic push rod is used to adjust the distance between the outer roller and the bamboo leaf slide, so that the end of the bamboo leaf can enter between the outer roller and the bamboo leaf slide 1.5. The outer roller motor 1.3 drives the outer roller to continue to convey the bamboo leaves on the bamboo leaf slide. The bamboo leaves are conveyed to the top of the clamping plate A2.4 and clamping plate B2.6.

[0071] Step 3, shaping the bamboo leaves.

[0072] (1) The two electromagnetic push rods below clamping plate A2.4 and clamping plate B2.6 are pushed out at the same time, so that the clamping plates on both sides close the bamboo leaves from the left and right sides of the mold respectively, so that the bamboo leaves are raised on both sides and close to the forming mold 2.3, while the bottom is approximately a line fixed on the plane.

[0073] (2) The two servo motors placed on the inclined side of clamping plate A2.4 and clamping plate B2.6 are inwardly fastened. The right pressure plate is closed first under the control of the servo motor, pressing the part of the zongzi leaf exposed on the inclined side of the right clamping plate onto the outward side of the mold. Then the left pressure plate is also closed, pressing the part of the zongzi leaf exposed on the inclined side of the left clamping plate onto the outward side of the forming mold 2.3. At this time, the zongzi leaf is tightly attached to the three sides of the triangular pyramid of the forming mold, forming a bucket-shaped structure. At this time, the outer upper limit plate 2.2 is pressed down, pressing the end (i.e. head) of the zongzi leaf that is still exposed outside the mold after two folds to the horizontal. The upper limit plate 2.2 is installed on the swing arm of a servo motor. The servo motor is installed on the frame through the gantry.

[0074] (3) After the upper limit plate 2.2 completes the pressing action, the electric push rod at the rear will push the formed zongzi leaf along with the mold into the conical zongzi box 3.21 on the front wheel. The conical zongzi box 3.21 is a triangular bucket-shaped opening mold. At the same time, the two side pressure plates on the left and right will open, but the upper limit plate will remain pressed down to ensure that the bucket-shaped structure of the zongzi leaf will not fall apart. After successful pushing, the two servo motors on the side of the conical zongzi box 3.21 will lock the zongzi leaf in place. Then the electric push rod will drive the mold back to the initial position, leaving the formed zongzi leaf in the triangular bucket-shaped opening conical zongzi box.

[0075] Step 4: The turntable 3.1 rotates, moving the conical rice dumpling box 3.21 containing the shaped rice dumpling leaves to below the filling mechanism. The filling mechanism consists of a hopper 4.6, a conveying pipe 4.7, an anti-blocking mechanism, and a material blocking mechanism, arranged vertically from top to bottom. The uppermost anti-blocking mechanism is powered by an anti-blocking motor 4.1 (which is a stepper motor) driven by a driving bevel gear 4.2 and a driven bevel gear 4.3. This allows the anti-blocking motor to control the rotation of a threaded rod. The threaded section of the threaded rod 4.5 is located inside the conveying pipe 4.7, and the rotating threaded rod can prevent material from blocking the conveying pipe. The material blocking electromagnetic push rod 4.8 controls the material blocking plate 4.9 to open and close the conveying pipe, controlling the amount of material flowing out. The turntable transports the rice dumpling leaves shaped at the rice dumpling leaf folding mechanism from the rice dumpling box device to the area below the conveying pipe for receiving the material. After receiving the material, the cover plate servo motor is activated to seal the rice dumpling leaves.

[0076] Step 5: Tying the string. The filled and shaped bamboo leaves are transported by a turntable to the bottom of the string-tying and sealing mechanism 5 for sealing. The specific process of string tying and sealing is as follows:

[0077] 1. The high-torque servo motor rotates the zongzi box device 3.2, making the opening horizontally outward, and the top cover plate 3.24 presses down to restrict the zongzi leaves from spreading out. The V-shaped movable angle 3.2102 at the front end of the zongzi box moves from the hinge position and rotates to separate from the box body 3.2101 with the notched corner of the opening.

[0078] 2. First, wrap the rope around the horizontal axis 5.8, then pass it through the through hole at the corner of the L-shaped swing arm, and finally pass it through the collar at the front end of the L-shaped swing arm. The other end of the rope is fixed under the pressure push rod.

[0079] 3. The drive motor 5.1 controls the rotation of the active lead screw 5.2, which in turn controls the drive slider 5.3 to move forward, causing the L-shaped rotating arm 5.4, which is suspended from the bottom of the drive slider 5.2 by a suspension rod, to move forward to the position of the V-shaped notch in the rice dumpling box. The suspension rod and the drive slider are connected by a 360-degree servo motor A, and the L-shaped rotating arm 5.1 and the vertical rod are also connected by a 360-degree servo motor B. The 360-degree servo motor B controls the L-shaped rotating arm 5.4 to rotate vertically, wrapping the rope around the exposed corner of the rice dumpling (the rope itself is wrapped around the horizontal axis at the rotation axis of the L-shaped rotating arm, and the horizontal axis itself is fixed to part of the vertical arm of the L-shaped rotating arm and does not rotate with the L-shaped rotating arm, so that the L-shaped rotating arm will not get tangled in itself when rotating).

[0080] 4. When the L-shaped rotating arm 5.4 has rotated a specified number of times and the winding is completed, the L-shaped rotating arm 5.4, driven by the 360-degree servo motor A between the vertical rod and the drive slider, rotates to the side of the pressure push rod, and then moves forward to the outside of the pressure push rod, sending the rope to the pressure push rod (at the same time, the pressure push rod is raised to form a clamp), and then the pressure push rod falls down to tighten the line;

[0081] 5. The rope between the rice dumpling box and the pressure push rod is melted and sealed by the heat sealing machine 5.5 (readjusted to be located between the rice dumpling box and the pressure push rod). Then the screw drives the L-shaped rotating arm to move backward, so that the entire mechanism returns to the initial position and the machine returns to the initial state.

[0082] Finally, let the rice dumplings slowly slide out of the cone-shaped rice dumpling box and fall onto the conveyor track or box through the inclined surface of the unloading plate.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic rice dumpling wrapping device, comprising a frame, characterized in that, The frame is equipped with a zongzi leaf conveying mechanism (1), a zongzi leaf folding mechanism (2) is installed at the discharge end of the zongzi leaf conveying mechanism (1), a turntable mechanism (3) is installed on the side of the zongzi leaf folding mechanism (2), a zongzi box device (3.2) is arranged on the edge of the turntable mechanism (3), and a filling mechanism (4) is also arranged around the turntable mechanism (3). The zongzi leaf folding mechanism (2) includes a forming mold (2.3), which is installed at the end of the piston rod of the electric push rod (2.1). The clamping plate A (2.4) is hinged to the clamping plate B (2.6), the clamping plate A (2.4) is hinged to the piston rod of the electromagnetic push rod A (2.5), the clamping plate B (2.6) is hinged to the piston rod of the electromagnetic push rod B (2.7), and an upper limit plate (2.2) is installed on the side of the clamping plate A (2.4). The upper limit plate (2.2) is installed on the upper crossbeam of a door frame by a servo motor. The turntable mechanism (3) includes a turntable (3.1), and three zongzi box devices (3.2) are arranged on the circumference of the turntable (3.1). Each zongzi box device (3.2) includes a conical zongzi box (3.21). The bottom of the conical zongzi box (3.21) is fixedly connected to the rocker arm of the high-torque servo motor (3.22). A cover plate (3.24) is installed on the top edge of the conical zongzi box (3.21). The cover plate (3.24) is installed on the conical zongzi box (3.21) through a cover plate servo motor (3.23). A servo motor is installed on each side of the conical zongzi box (3.21). The forming mold (2.3) is a triangular pyramid, and a connecting block (2.31) with a U-shaped groove is provided on the forming mold (2.3). A connecting pin (2.32) is installed in the groove of the connecting block (2.31). The clamping plates A (2.4) and B (2.6) are right-angled trapezoidal plates. A servo motor three (6) is installed on the hypotenuse of the clamping plates A (2.4) and B (2.6), and a pressure plate is installed on the rocker arm of the servo motor three (6). An inclined baffle (2.61) is provided on the clamping plate B (2.6). A servo motor four is installed at the end of the hinge shaft connecting the clamping plates A (2.4) and B (2.6). The conical rice dumpling box (3.21) includes an open corner-cut box body (3.2101), a movable corner (3.2102) that is assembled with the open corner-cut box body (3.2101), and a box body rotating plate (3.2103) is provided at the bottom of the open corner-cut box body (3.2101). A wire-binding and sealing mechanism (5) is also arranged around the turntable mechanism (3). The wire-binding and sealing mechanism (5) includes an L-shaped rotating arm (5.4). The L-shaped rotating arm (5.4) is installed at the end of the vertical rod by a servo motor five. The other end of the vertical rod is installed below the drive slider (5.3) by a servo motor six. The drive slider (5.3) is installed on the active screw (5.2). The end of the active screw (5.2) is connected to the drive motor (5.1). An L-shaped bracket is set at the corner of the L-shaped rotating arm (5.4). Circular holes are set on both walls of the L-shaped bracket. A horizontal wire shaft (5.8) is set at the fixed end of the L-shaped rotating arm (5.4). A vertical wire shaft (5.6) is installed on the lower seat plate (5.7) and is located in front of the extended end of the L-shaped rotating arm (5.4). A heat sealer (5.5) is installed on the lower seat plate (5.7) and is located at the front end of the extended arm of the L-shaped rotating arm (5.4).

2. The automatic rice dumpling wrapping equipment according to claim 1, characterized in that, The filling mechanism (4) includes a hopper (4.6), a downward conveying pipe (4.7) is provided at the center of the hopper (4.6), and a horizontally inserted baffle plate (4.9) is provided at the lower end of the conveying pipe (4.7). The baffle plate (4.9) is installed at the piston rod end of the baffle electromagnetic push rod (4.8).

3. The automatic rice dumpling wrapping equipment according to claim 2, characterized in that, A threaded rod (4.5) is installed at the center of the feed pipe (4.7), and a driven bevel gear (4.3) is installed at the top of the threaded rod (4.5). The driven bevel gear (4.3) meshes with the driving bevel gear (4.2) at the end of the output shaft of the anti-blocking motor (4.1). The smooth section of the threaded rod (4.5) is inserted into the mounting pipe (4.4). A bearing seat is installed at the end of the mounting pipe (4.4), and the mounting pipe (4.4) is mounted on the frame through the bearing seat.

4. The automatic rice dumpling wrapping equipment according to claim 3, characterized in that, The zongzi leaf conveying mechanism (1) includes a zongzi leaf box (1.1), an inclined tray (1.7) is provided inside the zongzi leaf box (1.1), the feeding section of the tray (1.7) is hinged to the bottom of the inner side of the zongzi leaf box (1.1), a spring (1.8) is installed below the discharge end of the tray (1.7), an inner rotating roller (1.31) is installed above the discharge end of the tray (1.7), a discharge port is provided on the side wall of the zongzi leaf box (1.1) at the discharge end of the tray (1.7), a zongzi leaf slide (1.5) is installed at the discharge port of the zongzi leaf box (1.1), an outer rotating roller is installed on the zongzi leaf slide (1.5), the inner rotating roller (1.31) is connected to the inner rotating roller motor (1.3), and the outer rotating roller is connected to the outer rotating roller motor (1.4).

5. The automatic rice dumpling wrapping equipment according to claim 4, characterized in that, The end of the zongzi leaf slide (1.5) is provided with a vertical baffle (1.6).

6. A method of using the automatic rice dumpling wrapping device as claimed in claim 5, characterized in that, The above-mentioned equipment is used to process zongzi (sticky rice dumplings); Step 1: Straighten the bamboo leaves and feed them into the bamboo leaf box through the feed inlet on the side. The ends of the bamboo leaves are held between the tray and the inner roller. Step 2: Start the inner roller motor. The inner roller motor rotates and drives the bamboo leaves to be output horizontally from the discharge port of the bamboo leaf box. The bamboo leaves are detected by the external photoelectric sensor. The bamboo leaves move along the bamboo leaf slide and the end moves to the bottom of the outer roller. The outer roller motor drives the outer roller to continue to transport the bamboo leaves on the bamboo leaf slide. The bamboo leaves are transported to the top of clamp A and clamp B. Step 3, shaping the bamboo leaves. Step 4: The turntable rotates, moving the conical rice dumpling box containing the shaped rice dumpling leaves to below the filling mechanism. The anti-blocking motor provides rotational power through the drive and driven bevel gears, enabling the anti-blocking motor to control the rotation of the threaded rod. The threaded section of the threaded rod is located inside the conveying pipe, and the rotating threaded rod can prevent material from clogging the conveying pipe. The material-blocking electromagnetic push rod controls the material-blocking plate to open and close the conveying pipe, controlling the amount of material flowing out. The turntable transports the rice dumpling leaves shaped at the rice dumpling leaf folding mechanism from the rice dumpling box device to the bottom of the conveying pipe to receive the material. After receiving the material, the cover plate servo motor starts to seal the rice dumpling leaves. Step 5, tie the thread.

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