A fully automatic zongzi wrapping machine

Abstract

The application provides a full-automatic zongzi wrapping machine, which can realize continuous automatic operation from zongzi leaf forming to bundling, and solves the technical problems of unstable zongzi leaf folding forming and low adaptability of the device to zongzi leaf size and zongzi shape. The full-automatic zongzi wrapping machine comprises a ring track conveying line, a supporting mechanism, a leaf moving mechanism, a forming mechanism, a filling mechanism, a top sealing mechanism and a bundling mechanism, and is characterized in that the supporting mechanism is connected with the ring track line, can be moved to below each execution mechanism, and realizes the driving of the movement of the corner support on the supporting mechanism through a cam on the ring track line, so as to complete the zongzi leaf folding forming and the four-corner zongzi bundling in cooperation with the forming mechanism and the bundling mechanism. The application greatly reduces the consumption of human resources and effectively improves the working efficiency of the automatic wrapping of the four-corner zongzi.

Description

Technical Field

[0001] The invention relates to the technical field of food packaging production, in particular to a full-automatic rice dumpling wrapping machine. Background Art

[0002] Traditionally, the production of four-cornered zongzi is primarily done manually. Specifically, two pieces of zongzi leaves are stacked in an offset pattern, twisted and folded into a cone at one-third of the way, glutinous rice and fillings are added, and the top is folded again to seal the top. Finally, the zongzi is tied with string. This manual operation is labor-intensive and cannot meet the needs of mass production. Automated production is difficult due to the soft nature of the zongzi leaves, making them difficult to shape and ensuring reliability. This can easily lead to problems such as incomplete shaping and leaking bottoms. Furthermore, the entire process, from folding the leaves to tying the four-cornered zongzi, is challenging to connect. Summary of the Invention

[0003] In response to the shortcomings of the above-mentioned existing production technologies, the applicant provides a fully automatic rice dumpling wrapping machine, which can realize multi-station continuous actions such as conveying, folding, forming and topping of rice dumpling leaves, winding and knotting of four-corner rice dumplings, and continuing and cutting the wires; by setting a rice dumpling-shaped mold, the rice dumpling leaves can be rotated and folded and formed in the rice dumpling-shaped mold, thereby improving the forming reliability and having a certain adaptability to the size of the rice dumpling leaves to meet the needs of industrial production; at the same time, a split supporting mechanism is also provided for the transportation and transfer of rice dumpling leaves at various stations, realizing rice dumpling leaf forming and four-corner rice dumpling bundling; the overall rotary transportation method is adopted to meet the needs of efficient production.

[0004] The technical solutions adopted in the present invention are as follows:

[0005] A fully automatic rice dumpling wrapping machine includes a circular track conveyor line, a supporting mechanism, a rice dumpling leaf conveyor line, a leaf moving mechanism, a forming mechanism, a filling mechanism, a capping mechanism and a bundling mechanism. The supporting mechanism is connected to the circular track line and can be moved below each actuator. The cam on the circular track line drives the upper corner support of the supporting mechanism to move, so as to cooperate with the forming mechanism and the bundling mechanism to complete the rice dumpling leaf folding and the bundling of the four corners.

[0006] Furthermore, the supporting mechanism is provided with a positive angle support, a left angle support, a right angle support and a bottom support, the internal structure of which is consistent with the zongzi-shaped mold and can be fully fitted with the zongzi-shaped mold, and is used for the initial folding of the zongzi leaves, and for fixing and supporting the zongzi leaves after they are formed; the positive angle support, the left angle support and the right angle support are installed on a manual slide, and the whole is driven by a crank slider mechanism, and reciprocates on an angle support plate that is at an angle of 60° to the horizontal plane, and a stop mechanism is also provided at the end of the angle support plate; the crank slider mechanism is connected to the angle support plate through a linear bearing, a bearing seat and an angle support The rod converts linear motion into rotational motion, driving the crank slider mechanism, and a cam bearing follower is provided at the bottom of the angle support connecting rod; the bottom support is driven by the angle support connecting rod, and reciprocates in the vertical direction on the angle support support plate, and a cam bearing follower is provided at the bottom of the connecting rod; the cam bearing followers on the positive angle support and the bottom support are in contact with the driving plate, and the driving plate is connected to the support plate on the supporting mechanism through a linear track, and the support plates of the positive angle support, left angle support, right angle support and bottom support are all installed on the rotating plate, and the rotating plate and the support plate are connected through bearings.

[0007] Furthermore, the forming mechanism has two groups, and they are symmetrical. The supporting mechanism is located in the middle of the two groups of forming mechanisms and below the zongzi-shaped mold. The forming mechanism is provided with two pairs of ball screws and one pair of ball spline screws for controlling the forming push plates to rotate and fold the zongzi leaves around the zongzi-shaped mold. It also includes a feeding switch, which cooperates with the zongzi-shaped mold for folding the zongzi leaves and filling them with stuffing.

[0008] Furthermore, the forming push plate is flat with the side surface of the forming mold, and the distance between them is less than the thickness of the rice dumpling leaf; the forming push plate is connected to the ball spline screw through a coupling, and the ball spline screw controls the movement of the forming push plate in the X-axis direction (perpendicular to the movement direction of the supporting mechanism) and the rotation around the X-axis; the ball spline screw is installed on the spline cap and the screw cap, and its movement is controlled by two motors connected to the spline cap and the screw cap through synchronous wheels; the spline cap, the screw cap and the two motors are all installed on the spline screw mounting plate; the two pairs of ball screws are respectively a Y-axis ball screw and a Z-axis ball screw; the Y-axis ball screw is connected to the spline screw mounting plate through a connecting block, which controls the movement of the forming push plate in the Y-axis direction (movement direction of the supporting mechanism); the Z-axis ball screw is connected to the forming module through the forming module support plate, which controls the movement of the forming push plate in the Z-axis direction (vertical direction).

[0009] Furthermore, the leaf-moving mechanism includes two leaf-moving clamps, which are installed on pneumatic fingers and control the spacing. The pneumatic fingers are installed on the ball spline screw, and the rotation and translation of the leaf-moving clamps are controlled through two output shafts and synchronous wheels. The leaf-moving mechanism can clamp the rice dumplings on the rice dumpling conveyor line and rotate them onto the forming mold. The central symmetry plane of the leaf-moving mechanism and the central symmetry plane of the supporting mechanism are one-sixth of the length of the rice dumpling.

[0010] Furthermore, the rice leaf conveyor line includes a conveyor belt with three partitions, which is installed on a bracket. The spacing between the partitions of the conveyor belt is slightly larger than the width of the rice leaf. The gap between the conveyor belts is sufficient for the movement of the leaf moving clamp in the leaf moving mechanism. The rice leaf conveyor line also includes a bearing seat at the end, and a connecting rod mechanism and a jack in the middle. The jack adjusts the angle between the conveyor belt and the horizontal plane, and the angle is consistent with the angle between the side of the rice dumpling mold close to the rice leaf conveyor belt and the vertical plane.

[0011] Furthermore, the filling mechanism includes a first filling mechanism and a second multi-component filling mechanism. The first filling mechanism includes a quantitative funnel, an air nozzle, a rocker mechanism, and a hopper. The quantitative funnel can move in a direction perpendicular to the movement direction of the supporting mechanism, and the switch at the bottom of the quantitative funnel is controlled by the rocker mechanism for filling glutinous rice; the second multi-component filling mechanism includes a filling plate, a filling rotating plate and a feeding barrel, which is used for filling solid block fillings. It also includes a quantitative funnel for filling glutinous rice.

[0012] Furthermore, the capping mechanism includes a capping rotating plate and a capping roller; the capping rotating plate is shaped like a vertical triangle, and its size is slightly larger than half of the top of the formed rice dumpling. The initial position of the capping rotating plate is parallel to the side of the rice dumpling, and it is driven by a four-bar mechanism to achieve its rotational movement around the side of the top of the rice dumpling, and is driven by a motor and a ball screw to achieve its translation in a direction perpendicular to the side of the top of the rice dumpling; the bottom of the capping roller is higher than the top of the rice dumpling by a distance slightly greater than the thickness of the capping rotating plate, and is driven by a cylinder to move in the opposite direction along the supporting mechanism to the top of the rice dumpling, and can rotate on its own.

[0013] Furthermore, the bundling mechanism includes a winding mechanism, a top angle forming mechanism, a wire rewinding mechanism, a knotting mechanism, and a rotating mechanism; the top angle forming mechanism is located on the right side of the movement direction of the supporting mechanism, and includes a leaf splint, a support rod, and a limit rod. The leaf splint is started by two cylinders and can move in a vertical direction and in the opposite direction of the movement of the supporting mechanism. A spring is provided between the two leaf splints, and an opening is provided in the middle position. The support rod is driven by the cylinder to move in a vertical direction, and the support rod can rotate around the axis and is controlled by the leaf splint; the wire rewinding mechanism includes a winding post, a cutter mechanism, and a wire pressing mechanism. The winding post is driven by a cylinder It can move in a direction perpendicular to the movement direction of the supporting mechanism. The cutter in the cutter mechanism is located at the center of the base plate and passes through the center of the wire pressing plate. A spring is provided between the base plate and the wire pressing plate. The wire pressing plate mechanism includes the base plate, the wire pressing plate and the spring; the knotting mechanism includes a knotting needle and a knotting channel. A track is provided in the knotting channel, the interior of which can accommodate the passage of the knotting needle and can rotate as the knotting needle moves; the rotating mechanism includes a rotating shaft, a spline cap and a synchronous wheel. The spline cap is connected to the spline shaft on the supporting mechanism by a cylinder, and the rotating shaft and the spline shaft are driven to rotate by the motor and the synchronous wheel, and the rotating plate connected to the spline shaft also rotates accordingly.

[0014] Furthermore, the circular track conveyor line includes a drive plate, several cam bearing followers, a track plate and a support track; the drive plate can move vertically on the linear guide rail and is driven by a cam, and is tangent to the cam bearing follower on the angle support top rod. The drive plates of the positive angle support and the bottom support are fixed by several cam bearing followers during the movement of the supporting mechanism, and the left angle support and the right angle support are fixed by the track plate; the chain transmission mechanism in the circular track conveyor line is connected through the chain connecting plate on the supporting mechanism, and is supported and guided by the support track.

[0015] When the fully automatic rice dumpling wrapping machine of the present invention is working, the forming push plate and the angle support are used together to realize the folding and forming operation of the rice dumpling leaf on the rice dumpling-shaped mold, and the angle support and the rice dumpling-shaped mold cooperate to fix the formed rice dumpling leaf, which makes it easy to realize the orderly folding of the rice dumpling leaf along a predetermined path to improve the forming quality; the bottom of the unloading switch is used as a reference, so that the distance of the rice dumpling leaf extending beyond the bottom of the unloading switch along the side of the rice dumpling-shaped mold is kept consistent, which can realize the double folding of the bottom corner of the rice dumpling, avoid the leakage of fillings and its influence on the subsequent process, improve the process stability, and facilitate standardized production and improve the adaptability of the device to the size of the rice dumpling leaf; the rice dumpling-shaped mold is hollow designed and A feeding switch is configured to serve as a feeding channel, and the first filling of the filling is achieved while demoulding, which can avoid the problem of looseness of the pre-formed rice dumpling body. Functional reuse also reduces the complexity of the device and production costs; the rice dumpling body with filling is capped by a capping mechanism; after forming, it can also be transported to the bundling mechanism through a supporting mechanism to achieve the top corner forming and secondary winding of the four-corner rice dumpling, meet the needs of the four-corner rice dumpling bundling process, and ensure the tightness of the four-corner rice dumpling bundling; the setting of the wire renewing mechanism can realize the uninterrupted supply of bundling wire, thereby improving the bundling efficiency of the four-corner rice dumpling; the overall use of a rotary transportation method effectively improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a front view of the overall structure of the present invention.

[0018] Figure 3 It is a top view of the overall structure of the present invention.

[0019] Figure 4 It is a schematic diagram of the overall structure of the supporting mechanism of the present invention.

[0020] Figure 5 It is a front view of the rice dumpling leaf conveying line of the present invention.

[0021] Figure 6 It is a schematic diagram of the overall structure of the leaf shifting mechanism of the present invention.

[0022] Figure 7It is a schematic diagram of the positional relationship among the rice dumpling leaf conveying line, leaf moving mechanism and supporting mechanism of the present invention.

[0023] Figure 8 It is a schematic diagram of the positional relationship between the forming mechanism and the supporting mechanism of the present invention.

[0024] Figure 9 It is a front view of the forming mechanism of the present invention.

[0025] Figure 10 It is a left view of the forming mechanism of the present invention.

[0026] Figure 11 It is a schematic diagram of the rice dumpling-shaped mold and the blanking switch of the present invention.

[0027] Figure 12 It is a schematic diagram of the overall structure of the first filling mechanism of the present invention.

[0028] Figure 13 It is a front view of the second multi-component filling mechanism of the present invention.

[0029] Figure 14 It is a top view of the second multi-component filling mechanism of the present invention.

[0030] Figure 15 It is a front view of the capping mechanism of the present invention.

[0031] Figure 16 It is the right side view of the capping mechanism of the present invention.

[0032] Figure 17 It is a schematic diagram of the overall structure of the strapping mechanism of the present invention.

[0033] Figure 18 It is a front view of the vertex forming mechanism of the present invention.

[0034] Figure 19 It is a front view of the wire-renewing mechanism of the present invention.

[0035] Figure 20 It is a schematic diagram of the overall structure of the knotting mechanism of the present invention.

[0036] Figure 21 It is a structural diagram of the cooperation between the rotating mechanism and the supporting mechanism of the present invention.

[0037] Figure 22 It is a structural schematic diagram of the cooperation between the supporting mechanism of the present invention and the circular track conveyor line.

[0038] Figure 23 It is a schematic diagram of the shape of the rice dumpling leaf after folding and forming of the present invention.

[0039] Figure 24 It is a schematic diagram of the final product of the present invention.

[0040] Among them: 1. Double-track circular conveyor line; 2. Support mechanism; 3. Zong leaf conveyor line; 4. Leaf moving mechanism; 5. Forming mechanism; 6. Capping mechanism; 7. Bundling mechanism;

[0041] 101. Drive plate; 102. Cam bearing follower support plate; 103. Track plate; 104. Support track; 105. Chain drive mechanism

[0042] 201. Angle support; 202. Left angle support; 203. Right angle support; 204. Bottom support; 205. Slider-crank mechanism; 206. Angle support support plate; 207. Linear bearing; 208. Bearing seat; 209. Angle support connecting rod; 210. Cam bearing follower; 211. Manual slide; 212. Stop mechanism; 213. Angle support drive plate; 214. Rotating plate; 215. Support plate; 216. Chain connecting plate;

[0043] 301, Zongzi leaf conveyor belt; 302, bearing seat; 303, connecting rod mechanism; 304, jack; 305, Zongzi leaf conveyor belt bracket;

[0044] 401, leaf-moving clamp; 402, pneumatic finger; 403, ball spline screw; 404, spline drive shaft; 405, screw drive shaft;

[0045] 501, forming push plate; 502, ball spline screw; 503, Z-axis ball screw; 504, Y-axis ball screw; 505, connecting block; 506, spline screw mounting plate; 507, forming module; 508, linear bearing; 509, guide rod; 510, guide rod mounting plate; 511, forming module support plate; 512, rice dumpling mold; 513, blanking switch;

[0046] 601, dosing funnel; 602, air nozzle; 603, rocker mechanism; 604, silo; 605, lower hopper; 606, filling tray; 607, filling rotating plate; 608, feeding barrel;

[0047] 701, capping rotating plate; 702, four-bar linkage; 703, capping roller;

[0048] 801. Winding mechanism; 802. Top angle forming mechanism; 8021. Support rod; 8022. Zongye splint; 8023. Limit rod; 8024. Spring; 803. Wire rewinding mechanism; 8031. Winding post; 8032. Cutter; 8033. Bottom plate; 8034. Spring; 8035. Wire pressing plate; 804. Knotting mechanism; 8041. Knotting hook; 8042. Knotting channel; 805. Rotating mechanism; 8051. Spline cap; 8052. Rotating shaft. DETAILED DESCRIPTION

[0049] The specific structure and working process of this embodiment are as follows:

[0050] like Figure 1-Figure 22 As shown, it is a specific embodiment of the present invention, including a double-track ring conveyor line 1, a supporting mechanism 2, a rice dumpling leaf conveyor line 3, a leaf moving mechanism 4, a forming mechanism 5, a filling mechanism 6, a capping mechanism 7, and a bundling mechanism 8.

[0051] The chain transmission mechanism 105 on the double-track circular conveyor line 1 is connected to the chain connecting plate 216 on the supporting mechanism 2. The chain rotation causes the supporting mechanism 2 to move on the support track to the bottom of the forming mechanism 5, the filling mechanism 6, the capping mechanism 7 and the strapping mechanism 8 to complete the corresponding operation;

[0052] When the supporting mechanism 2 moves to the bottom of the forming mechanism 5, the leaf-moving clamp 401 is kept horizontal with the moving direction of the zongzi leaves under the rotation of the spline drive shaft 403. When the zongzi leaves conveyor belt 301 transports the zongzi leaves to the inside of the leaf-moving clamp 401, the pneumatic finger 402 drives the leaf-moving clamp 401 to close and clamp the zongzi leaves; the leaf-moving mechanism 4 is driven by the screw rod and moves a distance on the zongzi leaves conveyor belt support 305. The spline drive shaft 403 rotates the leaf-moving clamp 401 90°, cutting the zongzi leaves to the side of the zongzi-shaped mold 512, and the bottom edge of the zongzi leaves exceeds the bottom of the zongzi-shaped mold 512 by about 10 mm. Because the central symmetry plane of the leaf-moving mechanism 4 and the central symmetry plane of the supporting mechanism 2 are one-sixth of the length of the zongzi leaves, the zongzi leaves will fit with the zongzi-shaped mold 512 at about one-third of the length.

[0053] The cam in the double-track circular conveyor line 1 pushes the driving plate to move, causing the angle support connecting rod 209 in the supporting mechanism 2 to move in the vertical direction. Under the motion transmission of the crank slider mechanism 205, the linear bearing 207, and the bearing seat 208, the positive angle support 201 will move on the angle support support plate 206 until it reaches the stop mechanism 212, so as to realize the folding of the rice dumpling leaf on the rice dumpling mold 512 and press it onto the rice dumpling mold 512; then, the spline drive shaft 403 rotates to make the leaf moving clamp 401 continue to rotate, At the same time, the spline drive shaft 404 rotates, so that the ball spline screw 403 drives the leaf moving clamp 401 to move toward the central symmetry plane of the leaf moving mechanism 4. Due to the different transmission ratios, the leaf moving clamp 401 on the long side will move a greater distance, so that the end of the rice leaf exceeds the rice dumpling mold 512; the motor near the short side of the rice leaf drives the screw cap to rotate through the synchronous wheel, so that the forming push plate 501 is driven by the ball spline screw 502 and moves in a direction perpendicular to the symmetry plane of the rice dumpling mold 512 until it exceeds 10 mm Then the Y-axis ball screw 504 rotates through the connecting block 505 to drive the forming push plate 501 installed on the spline screw mounting plate 506 to move along the moving direction of the supporting mechanism. At the same time, the Z-axis ball screw 503 rotates through the forming module support plate 511 to drive the forming module 507 to move in the vertical direction, and is guided by the linear bearings on both sides and the guide rods on the guide rod mounting plate. Under the driving cooperation of the Y-axis ball screw 504 and the Z-axis ball screw 503, the forming push plate 501 moves along the forming direction. The mold 512 moves sideways, driving the short side of the rice dumpling leaf to move on the rice dumpling mold 512 to complete the folding. The right corner support 203 moves in the same way as the positive corner support 201 to press the short side of the rice dumpling leaf against the forming mold 512; on the other side, the long side of the rice dumpling leaf is folded and pressed in the same way by the forming push plate 501 and the left corner support 502; the corner support connecting rod 209 moves in the vertical direction to make the bottom support 204 press the bottom of the formed rice dumpling leaf against the rice dumpling mold 512, completing the folding and forming of the rice dumpling leaf. Figure 23 Finally, the ball spline screw 502 retracts first, and the Y-axis ball screw 504 and the Z-axis ball screw 503 retract, so that the forming push plate 501 is reset. The blanking switch 513 moves in the vertical direction to open the bottom of the zongzi mold 512. Then the blanking switch 513 and the zongzi mold 512 move in the vertical direction together to connect to the subsequent filling operation. During the subsequent movement of the supporting mechanism 2, the positive angle support 201 and the bottom support 204 are limited by the cam bearing follower support plate 102 to the diagonal support drive plate 213, and the left angle support 202 and the right angle support 203 are limited by their cam bearing followers 210 by the track plate 103 to achieve the fixation of the angle support to the zongzi body when the supporting mechanism 2 moves.

[0054] Then, driven by the ball screw, the zongzi-shaped mold 512 and the discharge switch 513 move upward in the vertical direction. At the same time, the cylinder drives the discharge switch 513 to move relative to the zongzi-shaped mold 512, and the bottom of the zongzi-shaped mold 512 is opened. The quantitative funnel 601 in the first filling mechanism moves between the zongzi-shaped mold 512 and the air nozzle 602 in a direction perpendicular to the movement direction of the supporting mechanism, and the bottom of the quantitative funnel 601 is opened by the rocker mechanism 603. Under the weight of the glutinous rice and the blowing of the air nozzle 602, the glutinous rice is delivered to the formed zongzi body; the quantitative funnel 601 is reset, and the zongzi-shaped mold 512 and the discharge switch 513 are completely withdrawn. When the zong body is formed, the supporting mechanism 2 moves to the next station to carry out the second multi-component filling operation. The block filling is located in the filling tray 606, and the filling rotating plate 607 rotates to make it fall through the channel into the feeding barrel 608, and is rotated by the screw to deliver it into the zong body at the discharge port at the end of the feeding barrel 608. Then the second multi-component filling mechanism is displaced in a direction perpendicular to the movement direction of the supporting mechanism, and the discharge hopper 605 is aligned with the central axis of the zong body. The quantitative funnel 601 in the first filling mechanism moves in a direction perpendicular to the movement direction of the supporting mechanism to the top of the discharge hopper 605, which is consistent with the first filling method, to complete the entire filling operation.

[0055] The supporting mechanism 2 moves to the bottom of the capping mechanism 7, and the screw mechanism transports the capping rotating plate 701 to the side of the four-corner rice dumpling. Under the movement of the four-bar mechanism 702, the capping rotating plate 701 rotates around the side of the rice dumpling top to rotate and fold the rice dumpling leaves until they are close to the filling; then the capping roller 702 is pushed by the cylinder to move to the top edge of the rice dumpling in the opposite direction of the movement of the supporting mechanism, and folds the excess rice dumpling leaves with the support of the capping rotating plate 701. Then the supporting mechanism 2 continues to move, and cooperates with the capping roller 702 to complete the subsequent folding and capping of the excess rice dumpling leaves, and at the same time, the four-corner rice dumpling with the capped end is removed from the capping mechanism 7.

[0056] The supporting mechanism 2 transports the square rice dumpling to the bundling mechanism 8, and the cam mechanism causes the driving plate 101 to move downward in the vertical direction, and the left corner support 202 and the right corner support 203 are evacuated through motion transmission, and at the same time, the winding mechanism 801 completes the rotational winding operation of the square rice dumpling; then the winding mechanism 801 retreats a distance, and the cam mechanism causes the driving plate 101 to move upward in the vertical direction, and the left corner support 202 and the right corner support 203 are supported on the square rice dumpling again through motion transmission; the cylinder in the rotating mechanism 805 causes the rotating shaft 8052 to move upward until the spline cap 8051 at the end of the shaft is connected to the shaft in the supporting mechanism 2, and then the synchronous wheel drives the rotating shaft 8052 to rotate 90°, so that the rotating plate 214 in the supporting mechanism is relative to the support plate 21 5 rotates 90°; the support rod 8021 in the top angle forming mechanism 802 moves upward under the drive of the cylinder to support the tail end of the rice dumpling leaf. At the same time, under the push of the cylinder, the rice dumpling leaf splint 8022 first moves vertically downward to fold the tail end of the rice dumpling leaf in half. When the support rod 8021 withdraws, another cylinder drives the rice dumpling leaf splint 8022 to move in the opposite direction of the supporting mechanism, initially rotating the rice dumpling leaf tail 90° around the limiting rod 8023. The spring 8024 in the rice dumpling leaf splint 8022 can prevent its clamping force on the rice dumpling leaf from being too large, so that the rice dumpling leaf is damaged during operation. Since the limiting rod 8023 is supported by the rice dumpling leaf splint 8022, when the rice dumpling leaf splint 8022 moves a certain distance, 8023 will rotate and withdraw due to its own weight to avoid it from interfering with the movement of the winding mechanism 801. Dynamic interference; then the rotating mechanism 805 drives the rotating plate 214 to continue rotating 25° so that the side of the four-cornered dumpling is perpendicular to the center line of the winding mechanism, and the cylinder in the knotting mechanism 804 pushes the knotting hook 8041 to move in the knotting channel 8042, and rotates until the hook head of the knotting hook 8041 is close to the top of the four-cornered dumpling, and the needle head is flush with the top of the dumpling, and the winding mechanism 801 repeats the winding action from the farthest end. After completing the second winding, the winding mechanism 801 stops at an angle of 30° to the horizontal plane; the cylinder in the wire-renewing mechanism 803 retracts the lower wire pressing plate 8035, loosens the old thread end, and the winding post 8031 ​​is pushed by the cylinder to the winding range of the winding mechanism 801, and the winding mechanism continues to rotate 60° clockwise to wind the line onto the winding post 8031 , the cylinder retracts to pull the line back into the line renewing mechanism 803, and the lower cylinder pushes the lower wire pressing plate 8035 to press the line tightly. At the same time, the upper cylinder pushes the bottom plate 8033 to move downward until the upper wire pressing plate 8035 presses the line tightly on the winding column 8031. Under the action of the spring 8034 between the bottom plate 8033 and the wire pressing plate 8035, the cutter 8032 on the bottom plate 8033 can continue to move until the thread end is cut off, and the upper cylinder retracts; at the same time, the cylinder in the knotting mechanism 804 pushes the knotting hook 8041 to retract and rotate in the knotting channel 8042, so that the knotting hook 8041 needle moves a distance first to hook the thread end, and then rotates 90° to the needle facing downward until the thread end is pulled out from the winding coil to complete the bundling of the four-cornered rice dumplings.

[0057] The bundled zongzi is transported to the next station by the supporting mechanism for output. The final product is Figure 24 .

[0058] The present invention has high action continuity, high reliability and high efficiency during the process of preforming the rice dumpling leaves and bundling the four-corner rice dumplings.

[0059] In the present invention, starting from the transportation of rice dumpling leaves, the manual workload is greatly reduced, and multiple stations are carried out simultaneously, which can meet the demand for high-speed production.

[0060] The above description is only a preferred embodiment of the present invention and does not limit the present invention. It should be noted that those skilled in the art can develop various modifications and variations of similar mechanisms without departing from the principles and scope of the present invention, which should also be considered as the scope of protection of the present invention.

Claims

1. A fully automatic rice dumpling wrapping machine, comprising a circular track conveyor line, a supporting mechanism, a rice dumpling leaf conveyor line, a leaf moving mechanism, a forming mechanism, a filling mechanism, a capping mechanism and a bundling mechanism, characterized in that: The supporting mechanism is connected to the circular track conveyor line and can be moved to the bottom of each actuator, and the cam on the circular track conveyor line drives the upper corner support of the supporting mechanism to cooperate with the forming mechanism and the bundling mechanism to complete the folding and forming of the rice dumplings leaves and the bundling of the four corner rice dumplings; The supporting mechanism is provided with a positive angle support, a left angle support, a right angle support and a bottom support. Its internal structure is consistent with the zongzi-shaped mold and can be fully fitted with the zongzi-shaped mold for the initial folding of the zongzi leaves and the fixing and supporting of the zongzi leaves after forming. The forming mechanism has two groups, and they are in a symmetrical relationship. The supporting mechanism is located between the two groups of forming mechanisms and below the rice dumpling mold. The forming mechanism is provided with two pairs of ball screws and one pair of ball spline screws for controlling the forming push plates to rotate and fold the rice dumpling leaves around the rice dumpling mold. The forming push plate is flat with the side surface of the forming mold, and the distance between them is less than the thickness of the rice dumpling leaf; the forming push plate is connected to the ball spline screw by a coupling, and the ball spline screw controls the movement of the forming push plate in the X-axis direction and the rotation around the X-axis; the X-axis direction is perpendicular to the movement direction of the supporting mechanism; The leaf-moving mechanism includes two leaf-moving clamps, which are installed on pneumatic fingers and control the spacing. The pneumatic fingers are installed on the ball spline screw and are transmitted through two output shafts and synchronous wheels to control the rotation and translation of the leaf-moving clamps. The leaf-moving mechanism can clamp the rice dumplings on the rice dumpling conveyor line and rotate them to the forming mold.

2. The fully automatic rice dumpling wrapping machine according to claim 1, characterized in that: The positive angle support, left angle support and right angle support are installed on a manual slide and are driven as a whole by a crank slider mechanism. They make reciprocating motion on the angle support support plate which is at an angle of 60° to the horizontal plane. A stop mechanism is also provided at the end of the angle support support plate. The crank slider mechanism converts the linear motion into rotational motion through linear bearings, bearing seats and angle support connecting rods to drive the crank slider mechanism. A cam bearing follower is provided at the bottom of the angle support connecting rod. The bottom support is driven by the angle support connecting rod and makes reciprocating motion in the vertical direction on the angle support support plate. A cam bearing follower is provided at the bottom of the connecting rod. The cam bearing followers on the positive angle support and the bottom support are in contact with the drive plate, and the drive plate is connected to the support plate on the support mechanism through a linear track. The support plates of the positive angle support, left angle support, right angle support and bottom support are all installed on the rotating plate, and the rotating plate and the support plate are connected through bearings.

3. The fully automatic rice dumpling wrapping machine according to claim 1, characterized in that: The forming mechanism also includes a feeding switch, which cooperates with the rice dumpling mold to be used for folding the rice dumpling leaves and filling them with stuffing.

4. The fully automatic rice dumpling wrapping machine according to claim 3, characterized in that: The ball spline screw is installed on the spline cap and the screw cap, and its movement is controlled by two motors connected to the spline cap and the screw cap through the synchronous wheel; the spline cap, the screw cap and the two motors are all installed on the spline screw mounting plate; The two pairs of ball screws are respectively a Y-axis ball screw and a Z-axis ball screw; the Y-axis ball screw is connected to the spline screw mounting plate through a connecting block, which controls the movement of the forming push plate in the Y-axis direction; the Y-axis direction is the movement direction of the supporting mechanism; The Z-axis ball screw is connected to the forming module through the forming module support plate, and controls the movement of the forming push plate in the Z-axis direction; the Z-axis direction is the vertical direction.

5. The fully automatic rice dumpling wrapping machine according to claim 1, characterized in that: The central symmetry plane of the leaf moving mechanism and the central symmetry plane of the supporting mechanism are one-sixth of the length of the rice leaf.

6. The fully automatic rice dumpling wrapping machine according to claim 1, characterized in that: The rice leaf conveyor line includes a conveyor belt with three partitions, which is installed on a bracket. The spacing between the partitions of the conveyor belt is slightly larger than the width of the rice leaf. The gap between the conveyor belts is sufficient for the movement of the leaf moving clamp in the leaf moving mechanism. The rice leaf conveyor line also includes a bearing seat at the end, and a connecting rod mechanism and a jack in the middle. The jack adjusts the angle between the conveyor belt and the horizontal plane, and the angle is consistent with the angle between the side of the rice dumpling mold close to the rice leaf conveyor belt and the vertical plane.

7. The fully automatic rice dumpling wrapping machine according to claim 1, characterized in that: The filling mechanism includes a first filling mechanism and a second multi-component filling mechanism. The first filling mechanism includes a quantitative funnel, an air nozzle, a rocker mechanism, and a silo. The quantitative funnel can move in a direction perpendicular to the movement direction of the supporting mechanism. The switch at the bottom of the quantitative funnel is controlled by the rocker mechanism and is used for filling glutinous rice; the second multi-component filling mechanism includes a filling plate, a filling rotating plate and a feeding barrel, and is used for filling solid block fillings. It also includes a quantitative funnel for filling glutinous rice.

8. The fully automatic rice dumpling wrapping machine according to claim 1, characterized in that: The capping mechanism includes a capping rotating plate and a capping roller; the capping rotating plate is in the shape of a vertical triangle, and its size is slightly larger than half of the top of the formed rice dumpling. The initial position of the capping rotating plate is parallel to the side of the rice dumpling. It is driven by a four-bar mechanism to achieve its rotational movement around the side of the rice dumpling top, and is driven by a motor and a ball screw to achieve its translation in a direction perpendicular to the side of the rice dumpling top; the bottom of the capping roller is higher than the top of the rice dumpling by a distance slightly greater than the thickness of the capping rotating plate, and is driven by a cylinder to move in the opposite direction along the supporting mechanism to the top of the rice dumpling, and can rotate on its own.

9. The fully automatic rice dumpling wrapping machine according to claim 1, characterized in that: The bundling mechanism includes a winding mechanism, a top angle forming mechanism, a wire rewinding mechanism, a knotting mechanism, and a rotating mechanism; the top angle forming mechanism is located on the right side of the movement direction of the supporting mechanism, and includes a leaf splint, a support rod, and a limit rod. The leaf splint is started by two cylinders and can move in a vertical direction and in the opposite direction of the movement of the supporting mechanism. A spring is provided between the two leaf splints, and an opening is provided in the middle position. The support rod is driven by the cylinder to move in a vertical direction, and the limit rod can rotate around the axis and is controlled by the leaf splint; the wire rewinding mechanism includes a winding post, a cutter mechanism and a wire pressing mechanism. The winding post is driven by the cylinder to move in a vertical direction, and the limit rod can rotate around the axis and is controlled by the leaf splint. It moves perpendicular to the movement direction of the supporting mechanism. The cutter in the cutter mechanism is located at the center of the base plate and passes through the center of the wire pressing plate. A spring is provided between the base plate and the wire pressing plate. The wire pressing plate mechanism includes the base plate, the wire pressing plate and the spring; the knotting mechanism includes a knotting hook and a knotting channel. A track is provided in the knotting channel. The interior can accommodate the passage of the knotting hook and can rotate with the movement of the knotting hook; the rotating mechanism includes a rotating shaft, a spline cap and a synchronous wheel. The spline cap is connected to the spline shaft on the supporting mechanism by a cylinder, and the rotating shaft and the spline shaft are driven to rotate by the motor and the synchronous wheel, and the rotating plate connected to the spline shaft also rotates accordingly.

10. The fully automatic rice dumpling wrapping machine according to claim 1, characterized in that: The circular track conveyor line includes a drive plate, a cam bearing follower support plate, a track plate and a support track; the drive plate can move vertically on the linear guide rail and is driven by a cam, and is tangent to the cam bearing follower on the angle support top rod. The drive plates of the positive angle support and the bottom support are fixed by several cam bearing followers during the movement of the support mechanism, and the left angle support and the right angle support are fixed by the track plate; the chain transmission mechanism in the circular track conveyor line is connected through the chain connecting plate on the support mechanism, and is supported and guided by the support track.

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