Reed leaf folding and forming device

Abstract

The invention provides a rice dumpling leaf folding and forming device which can realize rotary folding and forming operation of rice dumpling leaves and has certain adaptability to the size of the rice dumpling leaves and the shape of rice dumpling bodies. A rice dumpling leaf folding and forming device comprises a forming mechanism and a bearing mechanism. The forming mechanism is characterized in that two pairs of ball screws and a pair of ball spline screws are arranged and used for controlling a forming push plate to rotate and fold the reed leaves around a reed-shaped mold, and the forming mechanism further comprises the reed-shaped mold and a discharging switch which are used for folding and forming the reed leaves and filling stuffing; the supporting mechanism is characterized in that the internal structures of four corner supports are kept consistent with the zongzi-shaped mold, can be completely attached to the zongzi-shaped mold and are used for primary folding of the zongzi leaves and fixing and supporting of the formed zongzi leaves. According to the method, the reed leaves are rotationally folded and formed on the reed-shaped mold, so that orderly folding of the reed leaves along a preset path and double folding of the bottom corners of the reed are easily realized, and improvement of reed-shaped forming quality and standardized production can be facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of food packaging production, in particular to a rice dumpling leaf folding and forming device. Background Art

[0002] At present, the wrapping of zongzi still relies on manual labor. Due to the soft material characteristics of zongzi leaves, it is difficult to shape them, and the reliability is difficult to ensure. It is easy to form them incompletely, and it is difficult to achieve scale and standardization of production. It is difficult to significantly increase the production speed and output. There are also health risks in manual contact. Research on the mechanized wrapping of zongzi mainly focuses on the single bundling process, and the method for folding and forming zongzi leaves is mainly based on the robot holding the zongzi leaves and rotating and folding them. This method requires the angle of the robot to be determined according to the specific size of the zongzi leaves to ensure the forming effect, which is difficult to adapt to actual production. This also makes most of the overall process of zongzi wrapping use the method of manually folding the zongzi leaves, which is difficult to achieve full mechanization. Summary of the invention

[0003] In view of the shortcomings in the above-mentioned existing production technology, the applicant provides a new type of rice dumpling leaf folding and forming device suitable for continuous mechanized production. By realizing the rotational folding and forming of the rice dumpling leaf in a rice dumpling-shaped mold, the forming reliability is improved and the device has a certain adaptability to the size of the rice dumpling leaf to meet the needs of industrial production.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A zong leaf folding and forming device comprises a forming mechanism and a supporting mechanism; the forming mechanism is characterized in that: two pairs of ball screws and one pair of ball spline screws are provided to control the forming push plates to rotate and fold the zong leaf around a zong-shaped mold, and also comprises a zong-shaped mold and a feeding switch, which are used for zong leaf folding and forming and filling; the supporting mechanism is characterized in that: a positive angle support, a left angle support, a right angle support, and a bottom support are provided, and its internal structure is consistent with the zong-shaped mold, and can be completely fitted with the zong-shaped mold, and is used for the initial folding of the zong leaf, and the fixation and support of the zong leaf after it is formed.

[0006] Furthermore, the forming mechanism has two groups and is in a symmetrical relationship, and the supporting mechanism is located between the two groups of forming mechanisms and below the rice dumpling-shaped mold.

[0007] Furthermore, the forming push plate is parallel to the side 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 movement of the forming push plate in the X-axis direction (the movement direction of the supporting mechanism) and the rotation around the X-axis are controlled by the ball spline screw; 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.

[0008] Furthermore, 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, thereby controlling the movement of the forming push plate in the Y-axis direction (perpendicular to the movement direction of the supporting mechanism); the Z-axis ball screw is connected to the forming module through the forming module support plate, thereby controlling the movement of the forming push plate in the Z-axis direction (vertical direction).

[0009] Furthermore, the forming module includes a ball spline screw, a Y-axis ball screw, a spline cap, a screw cap, a spline screw mounting plate and a connecting block; the vertical movement of the forming module is guided by linear bearings and guide rods on both sides, and the guide rods are installed on the guide rod mounting plate.

[0010] Furthermore, the side of the zongzi-shaped mold is tangent to the zongzi leaf, its symmetry plane is coplanar with the one-third surface of the zongzi leaf, and the bottom edge of the zongzi leaf exceeds the bottom of the unloading switch along the side direction of the zongzi-shaped mold; the unloading switch is located inside the zongzi-shaped mold, and is combined with it to form a complete zongzi leaf forming mold; the zongzi-shaped mold and the unloading switch can move in the vertical direction and can undergo relative movement.

[0011] Furthermore, 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 an angle support plate that forms an angle of 60° with the horizontal plane. A stop mechanism is also provided at the end of the angle support plate. The crank slider mechanism converts linear motion into rotational motion through linear bearings, bearing seats and angle support connecting rods to drive the crank slider mechanism.

[0012] Furthermore, the bottom bracket is driven by the angle bracket connecting rod and reciprocates in the vertical direction on the angle bracket supporting plate.

[0013] Furthermore, a pair of cam bearing followers are installed at the bottom of the angle support connecting rod.

[0014] When the rice dumpling leaf folding and forming device of the present invention is working, the forming push plate and the angle support jointly 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; taking the bottom of the feeding switch as a reference, the distance of the rice dumpling leaf along the side of the rice dumpling-shaped mold beyond the bottom of the feeding switch is kept consistent, which can realize the double folding of the bottom corner of the rice dumpling and avoid the leakage of fillings and its influence on the subsequent processes, improve the process stability, and facilitate standardized production and improve the adaptability of the device to the size of rice dumpling leaves; the rice dumpling-shaped mold is hollow designed and equipped with a feeding switch to serve as a feeding channel, and the first filling of the filling is realized while demoulding, which can avoid the problem of looseness of the pre-formed rice dumpling body, and the functional reuse also reduces the complexity and production cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the rice dumpling leaf folding and forming device of the present invention.

[0016] Figure 2 It is a front view of the forming mechanism of the present invention.

[0017] Figure 3 It is the left view of the forming mechanism of the present invention.

[0018] Figure 4 It is a schematic diagram of the overall structure of the supporting mechanism of the present invention.

[0019] Figure 5 It is a schematic diagram of the rice dumpling-shaped mold and the material discharge switch of the present invention.

[0020] Figure 6 It is a schematic diagram of the shape of the rice dumpling leaf after folding and forming of the present invention.

[0021] Among them: 1. Forming mechanism; 2. Supporting mechanism;

[0022] 101, forming push plate; 102, ball spline screw; 103, Z-axis ball screw; 104, Y-axis ball screw; 105, connecting block; 106, spline screw mounting plate; 107, forming module; 108, linear bearing; 109, guide rod; 110, guide rod mounting plate; 111, forming module support plate; 112, zong-shaped mold; 113, unloading switch;

[0023] 201. Positive angle support; 202. Left angle support; 203. Right angle support; 204. Bottom support; 205. Crank slider 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. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 5 As shown, a zongzi leaf folding and forming device of the present embodiment includes a forming mechanism 1 and a supporting mechanism 2. When the zongzi leaf is transported to the zongzi leaf mold 112, it is tangent to the side of the zongzi leaf mold 112, one-third of the zongzi leaf surface is coplanar with the symmetry surface of the zongzi mold 112, and the bottom edge of the zongzi leaf is 10 mm beyond the bottom of the unloading switch 113 along the side direction of the zongzi mold 112; then, the angle support connecting rod 209 moves in the vertical direction, and drives the crank slider mechanism 205 to move to the position of the stop mechanism 212 on the angle support support plate 206 through the bearing seat 208 and the linear bearing 207 and stops, so that the positive angle support 201 on the manual slide 211 cooperates with the zongzi mold 112 to complete the initial folding of the zongzi leaf and press the zongzi leaf onto the zongzi mold 112;

[0025] 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 101 is driven by the ball spline screw 102 to move in a direction perpendicular to the symmetry plane of the rice dumpling mold 112 until it exceeds 10 mm, and then the Y-axis ball screw 104 rotates through the connecting block 105 to drive the forming push plate 101 installed on the spline screw mounting plate 106 to move along the movement direction of the supporting mechanism, and at the same time, the Z-axis ball screw 103 rotates through the forming module support plate 111 to drive the forming module 107 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. Driven by the Y-axis ball screw 104 and the Z-axis ball screw 103, the forming push plate 101 moves along the side of the rice dumpling mold 112, driving the short side of the rice dumpling leaf to move on the forming mold 112 to complete the folding, and 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 rice dumpling mold 112; 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 101 and the left corner support 202; the corner support connecting rod 209 moves in the vertical direction so that the bottom support 204 presses the bottom of the formed rice dumpling leaf against the rice dumpling mold 112, completing the folding and forming of the rice dumpling leaf. Figure 6 Finally, the ball spline screw 102 is withdrawn first, and the Y-axis ball screw 104 and the Z-axis ball screw 103 are withdrawn again, so that the forming push plate 101 is reset. The unloading switch 113 moves in the vertical direction to open the bottom of the zongzi mold 112, and then the unloading switch 113 and the zongzi mold 112 move in the vertical direction together to connect the subsequent filling operation.

[0026] The present invention has high action continuity, high reliability and high efficiency during the process of folding and forming the rice dumpling leaves.

[0027] The present invention takes the bottom of the lower material switch as a reference, so that the distance of the rice dumpling leaf along the side of the rice dumpling-shaped mold beyond the bottom of the lower material switch remains consistent, so as to realize the double folding of the rice dumpling bottom, the overlapping of the short side and the long side of the rice dumpling leaf ensures the closedness of the rice dumpling leaf, and also improves the adaptability of the device to the size of the rice dumpling leaf, which is conducive to standardized production.

[0028] The present invention can adjust the rotational speed ratio of the Y-axis ball screw and the Z-axis ball screw according to the angle of the side of the rice dumpling-shaped mold, and adjust the angle of the forming push plate through the spline cap on the ball spline screw to meet the needs of folding rice dumpling leaves into rice dumplings of different sizes, which is beneficial to the adjustment of product lines in actual production.

[0029] The above is only a preferred embodiment of the present invention and does not limit the present invention. It should be noted that a person skilled in the art can develop a variety of modifications and variations of similar mechanisms without departing from the principle and scope of the present invention, which should also be regarded as the protection scope of the present invention.

Claims

1. A rice dumpling leaf folding and forming device, comprising a forming mechanism and a supporting mechanism; The forming mechanism is characterized in that: two pairs of ball screws and one pair of ball spline screws are provided to control the forming push plate to rotate and fold the zong leaves around the zong-shaped mold, and also includes a material discharge switch, which cooperates with the zong-shaped mold for folding the zong leaves and filling them with stuffing; The supporting mechanism is characterized in that a positive angle support, a left angle support, a right angle support, and a bottom support are provided, and its internal structure is consistent with the zong-shaped mold, and can be completely fitted with the zong-shaped mold, and is used for the initial folding of the zong leaves, and for fixing and supporting the zong leaves after they are formed.

2. A rice dumpling leaf folding and forming device as claimed in claim 1, characterized in that: There are two groups of forming mechanisms, which are symmetrical. The supporting mechanism is located between the two groups of forming mechanisms and below the rice dumpling-shaped mold.

3. A rice dumpling leaf folding and forming device as claimed in claim 1, characterized in that: The forming push plate is parallel to the side 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 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 are controlled by the ball spline screw; 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.

4. A rice dumpling leaf folding and forming device as claimed in claim 1, characterized in that: 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, thereby controlling the movement of the forming push plate in the Y-axis direction (the movement direction of the supporting mechanism); the Z-axis ball screw is connected to the forming module through a forming module support plate, thereby controlling the movement of the forming push plate in the Z-axis direction (vertical direction).

5. A rice dumpling leaf folding and forming device as claimed in claim 4, characterized in that: The forming module includes a ball spline screw, a Y-axis ball screw, a spline cap, a screw cap, a spline screw mounting plate and a connecting block; the vertical movement of the forming module is guided by linear bearings and guide rods on both sides, and the guide rods are mounted on the guide rod mounting plate.

6. A rice dumpling leaf folding and forming device as claimed in claim 1, characterized in that: The side of the zongzi-shaped mold is tangent to the zongzi leaf, its symmetry plane is coplanar with the one-third surface of the zongzi leaf, and the bottom edge of the zongzi leaf exceeds the bottom of the blanking switch along the side direction of the zongzi-shaped mold; the blanking switch is located inside the zongzi-shaped mold and is combined with it to form a completed zongzi leaf forming mold; the zongzi-shaped mold and the blanking switch can move in the vertical direction and can undergo relative movement.

7. A rice dumpling leaf folding and forming device as claimed in 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 an angle support plate that forms an angle of 60° with the horizontal plane. A stop mechanism is also provided at the end of the angle support plate. The crank slider mechanism converts linear motion into rotational motion through linear bearings, bearing seats and angle support connecting rods to drive the crank slider mechanism.

8. The rice dumpling leaf folding and forming device according to claim 1, characterized in that: The bottom bracket is driven by the angle bracket connecting rod and reciprocates in the vertical direction on the angle bracket supporting plate.

9. A rice dumpling leaf folding and forming device as claimed in claim 7, characterized in that: A pair of cam bearing followers are installed at the bottom of the angle support connecting rod.

Images