Triangular rice ball packaging device
By designing a triangular rice ball packaging device, which utilizes an isosceles triangle structure and an electric push rod, automated packaging of triangular rice balls has been achieved. This solves the problem of low efficiency in manual packaging, reduces labor costs, and ensures the integrity of the rice balls.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN YINGBAOER MACHINERY CO LTD
- Filing Date
- 2025-09-28
- Publication Date
- 2026-07-24
AI Technical Summary
The current packaging of triangular rice balls mainly relies on manual operation, resulting in high labor costs and low efficiency.
A triangular rice ball packaging device was designed, including a shell assembly, a lower mold assembly, an ejection assembly, and a guide assembly. By utilizing the precise fit between the isosceles triangle structure and the triangular placement groove, combined with the sliding fit between the electric push rod and the guide rail groove, the automatic wrapping of seaweed sheets and the damage-free transfer of triangular rice balls can be achieved.
The automated packaging of triangular rice balls has been achieved, reducing labor costs, improving packaging efficiency, and ensuring the integrity and undamaged nature of the rice balls during the transfer process.
Smart Images
Figure CN224546428U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of triangular rice ball packaging technology, specifically a triangular rice ball packaging device. Background Technology
[0002] Triangular rice balls, as a convenient ready-to-eat food, are widely used in convenience stores, supermarkets, and the catering industry. Their core packaging requirement is to achieve a precise fit between the seaweed and the rice ball, ensuring undamaged packaging. Triangular rice balls are made primarily of rice, wrapped in an outer layer of seaweed, and filled with fillings such as meat, seafood, and vegetables. Their common shape is triangular. The production process includes three stages: rice processing, filling, and shaping. It requires controlling the moisture content and seasoning of the rice to ensure the rice balls are firm and do not easily crumble after cooling.
[0003] Based on the above, the inventors have discovered the following problems: the current packaging method for triangular rice balls is mainly manual packaging. Operators need to first lay the seaweed sheet flat, manually place the triangular rice ball in the center of the seaweed, and then fold the three corners of the seaweed in sequence to complete the packaging. Packaging a single triangular rice ball requires laying the seaweed flat, placing the rice ball in the center, and folding the three corners in sequence, which is labor-intensive and inefficient.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a triangular rice ball packaging device in order to achieve a more practical purpose. Utility Model Content
[0005] The purpose of this invention is to provide a triangular rice ball packaging device to solve the problems mentioned in the background art.
[0006] In view of the above problems, the technical solution proposed by this utility model is as follows: A triangular rice ball packaging device includes a shell assembly, a lower mold assembly, an ejection assembly, and a guide assembly. The shell assembly includes a housing, a horizontal plate installed inside the housing, and a second mold installed inside the housing. The lower mold assembly includes a first mold, which is slidably disposed inside the housing. The first mold, the horizontal plate, and the second mold are arranged sequentially from bottom to top. Both the first mold and the second mold have triangular placement grooves inside them. The ejection assembly includes an electric push rod, which is installed at the bottom inside the housing, and a top block is installed at the movable end of the electric push rod.
[0007] Furthermore, the top block is an isosceles triangle, and the horizontal plate has a through groove inside near the second mold. The through groove is an isosceles triangle, and the inner wall of the through groove slides with the outer wall of the top block. The through groove and the pair of triangular placement grooves have the same shape.
[0008] The beneficial effects of adopting the above-mentioned further solution are that the isosceles triangle structure is perfectly adapted to the shape of the triangular rice ball; the triangular placement groove on the first mold facilitates placing the seaweed sheet on the first mold first and then placing the triangular rice ball in it; at the same time, the triangular placement groove on the first and second molds and the through groove on the horizontal plate ensure that the top block can accurately pass through the through groove and the triangular placement groove, thereby realizing the packaging of the triangular rice ball by the seaweed; through the sliding cooperation between the top block and the through groove, a stable vertical movement guide is provided for the top block; the through groove and the pair of triangular placement grooves have the same shape, so that the top block can completely fit the bottom of the rice ball, and smoothly lift the rice ball from the placement groove of the first mold to the placement groove of the second mold and finally push it out, realizing the transfer without damage.
[0009] Furthermore, the first mold has grooves on both sides of its outer wall, and guide rails are provided inside each pair of grooves. The opposite sides of the pair of guide rails are fixedly connected to the inner wall of the outer shell, and the outer walls of the pair of guide rails slide in cooperation with the inner walls of the pair of grooves. The guide rails are trapezoidal.
[0010] The beneficial effects of adopting the above-mentioned further solution are that the cooperation between the trapezoidal guide rail and the slide groove forms an anti-detachment guide, which not only prevents the first mold from detaching from the guide rail during the sliding process, but also ensures that the first mold moves smoothly along a straight line through the tight fit of the trapezoidal surface; and the sliding cooperation between the guide rail and the slide groove allows the operator to easily push and pull the first mold, which is convenient to accurately push the first mold into the shell to align with the second mold after the rice ball is placed on the first mold.
[0011] Furthermore, a baffle is installed on one side of the top surface of the first mold, and a connecting plate is bolted to the outer wall of the first mold at the end away from the second mold. A handle is installed on the top surface of the connecting plate, and the handle is spherical.
[0012] The beneficial effect of adopting the above-mentioned further solution is that, through the setting of the baffle, when the seaweed sheet is placed, one end of the seaweed sheet abuts against the baffle, and then a triangular rice ball is placed on the seaweed sheet and stuffed into the triangular placement groove in the first mold. Then, the user pinches the end of the seaweed sheet away from the baffle and folds it to form a semi-enclosed shape for the rice ball. Since the handle forms an integral structure with the first mold through the connecting plate, the first mold is sent under the second mold using the handle.
[0013] Furthermore, the guide assembly includes an outer cylinder disposed at the inner bottom end of the housing and located on one side of the electric push rod. An inner rod is slidably disposed inside the outer cylinder, and the top end of the inner rod is fixedly connected to the bottom end of the top block.
[0014] The beneficial effects of adopting the above-mentioned further solution are that the sliding fit between the outer cylinder and the inner rod provides additional vertical guiding support for the top block and forms a double guide with the electric push rod, which avoids the bending phenomenon of the moving end of the electric push rod due to long-term stress and extends the service life of the electric push rod; at the same time, the inner rod moves synchronously with the top block, which can offset the lateral force on the top block during the lifting process, ensuring that the top block always moves vertically, and further improving the stability of lifting the triangular rice ball.
[0015] Furthermore, the inner wall of the outer cylinder is provided with a plurality of limiting grooves along the circumference, and each of the limiting grooves is slidably connected with a limiting strip, and the outer wall of one end of each limiting strip is fixedly connected to the outer wall of the inner rod.
[0016] The beneficial effect of adopting the above-mentioned further solution is that the sliding fit between the limiting strip and the limiting groove can prevent the inner rod from rotating inside the outer cylinder, thereby ensuring that the top block always maintains the orientation of the isosceles triangle and is aligned with the triangular placement groove. At the same time, the circumferentially distributed limiting groove and limiting strip can evenly distribute the force on the inner rod.
[0017] Furthermore, the length of the inner rod is greater than the extension of the movable end of the electric push rod.
[0018] The beneficial effect of adopting the above-mentioned further solution is that when the moving end of the electric push rod is at its maximum extension, part of the inner rod still remains inside the outer cylinder, thus avoiding the inner rod from completely detaching from the outer cylinder and causing guide failure.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: The triangular rice ball packaging device first places a sheet of seaweed on the first mold, with one end of the seaweed abutting against the baffle. Then, a triangular rice ball is placed on the seaweed sheet and inserted into the triangular placement groove inside the first mold. The user then holds the end of the seaweed sheet away from the baffle and folds it to partially wrap the rice ball. With the sliding cooperation of the guide rail and the slide groove, the operator can easily push the first mold using the handle, precisely pushing it into the outer shell to align with the second mold. The electric push rod is activated, and its movable end moves upward, causing the top block to pass sequentially through the through groove, the triangular placement groove on the first mold, and the triangular placement groove on the second mold. During the lifting process, the seaweed sheet completely wraps the triangular rice ball. The device then continues to lift, causing the triangular rice ball to be ejected. Attached Figure Description
[0020] Figure 1 A three-dimensional structural diagram of a triangular rice ball packaging device provided by this utility model; Figure 2 A three-dimensional structural diagram of the lower mold assembly of a triangular rice ball packaging device provided by this utility model; Figure 3 An exploded three-dimensional structural diagram of a triangular rice ball packaging device provided by this utility model; Figure 4 A three-dimensional structural schematic diagram of a guide component for a triangular rice ball packaging device provided by this utility model; Figure 5 This is a front cross-sectional structural diagram of a triangular rice ball packaging device provided by this utility model.
[0021] In the diagram: 1. Shell assembly; 11. Outer shell; 12. Horizontal plate; 13. Through slot; 14. Guide rail; 2. Lower mold assembly; 21. First mold; 22. Baffle; 23. Connecting plate; 24. Handle; 3. Second mold; 4. Ejection assembly; 41. Electric push rod; 42. Ejector block; 5. Guide assembly; 51. Outer cylinder; 52. Inner rod; 53. Limiting slot. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-5This utility model provides a technical solution: a triangular rice ball packaging device, including a shell assembly 1, a lower mold assembly 2, an ejection assembly 4, and a guide assembly 5. The shell assembly 1 includes a shell 11, a horizontal plate 12 installed inside the shell 11, and a second mold 3 installed inside the shell 11. The lower mold assembly 2 includes a first mold 21 slidably disposed inside the shell. The first mold 21, the horizontal plate 12, and the second mold 3 are arranged sequentially from bottom to top, and both the first mold 21 and the second mold 3 have triangular placement grooves inside. The ejection assembly 4 includes an electric push rod 41, which is installed at the bottom inside the shell 11. A top block 42 is installed at the movable end of the electric push rod 41. The top block 42 is an isosceles triangle. The horizontal plate 12 has a through groove 13 near the second mold 3. The through groove 13 is an isosceles triangle. The inner wall of the top block 42 slides in conjunction with the outer wall of the top block 42. The through groove 13 and a pair of triangular placement grooves have the same shape. The isosceles triangular structure is perfectly adapted to the shape of the triangular rice ball. The triangular placement groove on the first mold 21 makes it easy to place the seaweed sheet on the first mold 21 first and then place the triangular rice ball in it. At the same time, the triangular placement grooves on the first mold 21 and the second mold 3, and the through groove 13 on the horizontal plate 12 ensure that the top block 42 can accurately pass through the through groove 13 and the triangular placement groove, thereby realizing the packaging of the triangular rice ball with seaweed. The sliding fit between the top block 42 and the through groove 13 provides a stable vertical movement guide for the top block 42. The through groove 13 and the pair of triangular placement grooves have the same shape, so that the top block 42 can completely fit the bottom of the rice ball, and smoothly lift the rice ball from the placement groove of the first mold 21 to the placement groove of the second mold 3 and finally push it out, realizing the transfer without damage.
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1-5This utility model provides a technical solution: The outer walls of the first mold 21 are provided with grooves on both sides. Each pair of grooves has a guide rail 14 inside. The opposite sides of the guide rails 14 are fixedly connected to the inner walls of the outer shell 11. The outer walls of the guide rails 14 slide against the inner walls of the grooves. The guide rails 14 are trapezoidal. A baffle 22 is installed on one side of the top surface of the first mold 21. A connecting plate 23 is bolted to the outer wall of the first mold 21 at the end furthest from the second mold 3. A handle 24 is installed on the top surface of the connecting plate 23. The handle 24 is spherical. The baffle... With the setting of 22, when placing the seaweed sheet, one end of the seaweed sheet abuts against the baffle 22, and then a triangular rice ball is placed on the seaweed sheet and inserted into the triangular placement groove in the first mold 21. Then, the user pinches the end of the seaweed sheet away from the baffle 22 and folds it to form a semi-enclosed shape for the rice ball. Since the handle 24 forms an integral structure with the first mold 21 through the connecting plate 23, the operator can easily push the first mold 21 with the handle 24 under the sliding cooperation of the guide rail 14 and the slide groove, and accurately push the first mold 21 into the shell 11 to align with the second mold 3.
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figures 1-5 This utility model provides a technical solution: the guide assembly 5 includes an outer cylinder 51, which is disposed at the bottom of the inner part of the housing and is located on one side of the electric push rod 41. An inner rod 52 is slidably disposed inside the outer cylinder 51, and the top end of the inner rod 52 is fixedly connected to the bottom end of the top block 42. A plurality of limiting grooves 53 are formed circumferentially on the inner wall of the outer cylinder 51. Limiting strips are slidably connected inside the plurality of limiting grooves 53. The outer wall of one end of the plurality of limiting strips is fixedly connected to the outer wall of the inner rod 52. The length of the inner rod 52 is greater than the extension amount of the movable end of the electric push rod 41. The sliding cooperation between the outer cylinder 51 and the inner rod 52 provides additional vertical guiding support for the top block 42 and forms a double guide with the electric push rod 41, avoiding bending of the movable end of the electric push rod 41 due to long-term stress and extending the service life of the electric push rod 41. When the movable end of the electric push rod 41 is at its maximum extension, part of the inner rod 52 still remains inside the outer cylinder 51, preventing the inner rod 52 from completely detaching from the outer cylinder 51 and causing guide failure.
[0028] Specifically, the working principle of this triangular rice ball packaging device is as follows: First, a sheet of seaweed is placed on the first mold 21, with one end of the seaweed abutting against the baffle 22. Then, a triangular rice ball is placed on the seaweed sheet and inserted into the triangular placement slot within the first mold 21. The user then holds the end of the seaweed sheet away from the baffle 22 and folds it to partially wrap the rice ball. With the sliding cooperation of the guide rail 14 and the slide groove, the operator can easily push the first mold 21 using the handle 24, precisely pushing it into the outer shell 11 to align with the second mold 3. The electric push rod 41 is activated, and its movable end moves upward, causing the top block 42 to pass sequentially through the through slot 13, the triangular placement slot on the first mold 21, and the triangular placement slot on the second mold 3. During the lifting process, the seaweed sheet completely wraps the triangular rice ball. The lifting continues, causing the triangular rice ball to be ejected. The operator's hand covers the triangular placement slot of the second mold 3, and the lifting continues, causing the triangular rice ball to be ejected into the operator's palm.
[0029] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. Furthermore, since this application is mainly used to protect mechanical devices, the control methods and circuit connections will not be explained in detail in this application.
Claims
1. A triangular rice ball packaging device, characterized in that, The assembly includes a housing assembly (1), a lower mold assembly (2), an ejection assembly (4), and a guide assembly (5). The housing assembly (1) includes a housing (11), a horizontal plate (12) is installed inside the housing (11), and a second mold (3) is installed inside the housing (11). The lower mold assembly (2) includes a first mold (21), which is slidably disposed inside the housing. The first mold (21), the horizontal plate (12), and the second mold (3) are arranged sequentially from bottom to top. The interiors of the first mold (21) and the second mold (3) are both provided with triangular placement slots. The ejection assembly (4) includes an electric push rod (41), which is installed at the bottom of the interior of the housing (11), and a top block (42) is installed at the movable end of the electric push rod (41).
2. The triangular rice ball packaging device according to claim 1, characterized in that, The top block (42) is an isosceles triangle, and the horizontal plate (12) has a through groove (13) in the interior near the second mold (3). The through groove (13) is an isosceles triangle, and the inner wall of the through groove (13) slides with the outer wall of the top block (42). The through groove (13) and a pair of triangular placement grooves have the same shape.
3. The triangular rice ball packaging device according to claim 1, characterized in that, The first mold (21) has grooves on both sides of its outer wall. Each of the two grooves has a guide rail (14) inside. The opposite sides of the two guide rails (14) are fixedly connected to the inner wall of the outer shell (11). The outer walls of the two guide rails (14) slide in cooperation with the inner walls of the two grooves. The guide rails (14) are trapezoidal.
4. The triangular rice ball packaging device according to claim 3, characterized in that, A baffle (22) is installed on one side of the top surface of the first mold (21). A connecting plate (23) is bolted to the outer wall of the first mold (21) at the end away from the second mold (3). A handle (24) is installed on the top surface of the connecting plate (23). The handle (24) is spherical.
5. A triangular rice ball packaging device according to claim 1, characterized in that, The guide assembly (5) includes an outer cylinder (51), which is located at the bottom of the inner part of the housing and is situated on one side of the electric push rod (41). An inner rod (52) is slidably disposed inside the outer cylinder (51), and the top end of the inner rod (52) is fixedly connected to the bottom end of the top block (42).
6. The triangular rice ball packaging device according to claim 5, characterized in that, The inner wall of the outer cylinder (51) is provided with a plurality of limiting grooves (53) along the circumferential direction. Each of the limiting grooves (53) is slidably connected with a limiting strip. The outer wall of one end of each limiting strip is fixedly connected to the outer wall of the inner rod (52).
7. A triangular rice ball packaging device according to claim 6, characterized in that, The length of the inner rod (52) is greater than the extension of the movable end of the electric push rod (41).