Novel heating bulking machine
The new type of heating extruder, with its cam linkage mechanism and modular design, solves the problems of complex equipment structure and high maintenance costs, and achieves simple operation and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG CHENGMEI FOOD EQUIP CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-08
AI Technical Summary
Existing heating and puffing machines have complex structures, high maintenance costs, and limited production efficiency and economic benefits.
The system employs a first and second cam in conjunction with a linkage mechanism to achieve automatic feeding, conveying, pushing, and clamping functions, simplifying the equipment structure. It adopts a modular steel structure design and reserves space for maintenance.
The equipment is easy to operate, reduces production and operating costs, improves equipment maintainability, and enhances production efficiency.
Smart Images

Figure CN224206142U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extruders, and in particular to a novel heated extruder. Background Technology
[0002] A heated puffing machine is a food processing device that expands the volume of materials through high temperature and high pressure. It is widely used in the production of puffed foods from grains, potatoes, beans, and other raw materials. Its working principle involves feeding the raw material into the puffing chamber. Under high temperature conditions, the moisture in the material rapidly vaporizes, leading to starch gelatinization and protein denaturation. When the material is suddenly released to normal pressure through the die, the internal vapor expands instantaneously, forming a loose, porous structure. This equipment boasts advantages such as high production efficiency, excellent puffing effect, and crispy product texture. It can produce a variety of products including puffed snacks, breakfast cereals, and pet food. The degree of puffing and the shape of the product can be controlled by adjusting the temperature, pressure, and die shape.
[0003] Currently, mainstream molding equipment is mainly divided into two categories: hydraulic presses and single-die machines. However, both types of equipment have significant technical defects that restrict the improvement of production efficiency and economic benefits. Although hydraulic presses have the advantages of stable pressure and high molding precision, their mechanical structure is extremely complex. They require a precision hydraulic system, multiple sets of oil cylinders, and a complex control system. This not only leads to high equipment manufacturing costs but also brings a heavy maintenance burden.
[0004] Therefore, those skilled in the art have provided a novel heating puffing machine to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel heating and puffing machine. Through a first and second cam in conjunction with a linkage mechanism, the upper and lower feed plates are driven to perform different actions, achieving automatic feeding, conveying, and pushing functions. The first and second cams, as well as the third and fourth cams, can also enable the middle and lower templates to cooperate with the first and second connecting rods to achieve an automatic clamping function, preparing for heating and puffing. The die head can be heated, which can clamp and heat the raw material, causing it to puff and separate. After the upper and lower feed plates push out the finished product, it enters the next cycle. The structure is simple and ingenious.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A novel heating puffing machine includes a top plate and a casing. A bearing is fixedly connected to one outer wall of the casing. A connecting shaft is rotatably connected inside the bearing. A first cam is engaged with one side of the outer wall of the connecting shaft. A third cam is provided on the outer wall of the first cam away from the center. A second cam is engaged with the outer wall of the connecting shaft away from the first cam. A second connecting rod is rotatably connected to the inner wall of the first cam. Two first connecting parts are rotatably connected to the end of the second connecting rod away from the first cam. A first rotating seat is rotatably connected to the upper end of the outer wall of the first connecting parts. A middle template is fixedly connected to the upper surface of the first rotating seat. Four limiting posts are provided inside the middle template. The top plate is fixedly connected to the upper end of the outer wall of the limiting posts.
[0008] Multiple spring components are fixedly connected to the lower surface of the top plate. A limit plate is fixedly connected to the lower surface of the spring components. A lower template is provided at the end of the middle of the limit post near the limit plate. Movable posts are fixedly connected to the four corners of the lower surface of the lower template. A movable plate is fixedly connected to the lower end of the outer wall of the movable post. A second rotating seat is fixedly connected to the middle of the lower surface of the movable plate. A fourth cam is provided on the outer wall of the second cam away from the middle. A first connecting rod is rotatably connected to the inner wall of the second cam.
[0009] Through the above technical solution, the first and second cams, in conjunction with the linkage mechanism, drive the upper and lower feed plates to perform different actions, thereby realizing the functions of automatic feeding, conveying, and pushing. The first and second cams, as well as the third and fourth cams, can also enable the middle and lower templates to cooperate with the first and second linkages to realize the automatic pressing function, which prepares for heating and puffing. The die head can be heated, which can press and heat the raw material, causing it to puff and separate. After the upper and lower feed plates push out the finished product, it enters the next cycle. The structure is simple and ingenious.
[0010] Furthermore, a third connecting rod is rotatably connected to the outer wall of the third and fourth cams on the side away from the middle, and a second connecting member is rotatably connected to the end of the third connecting rod away from the third and fourth cams, and a feed plate is rotatably connected to the end of the second connecting member away from the third connecting rod.
[0011] Through the above technical solutions, the equipment is simple and intuitive to operate, and the operation process conforms to conventional production habits. Workers can quickly master it without complicated training. The whole machine adopts a modular steel structure design, and the layout of each functional unit is scientific and reasonable. All key components have reserved sufficient maintenance space, which greatly improves the maintainability of the equipment and effectively reduces production and operation costs compared with traditional models.
[0012] Furthermore, a sliding groove is provided on the upper surface of the chassis, and a feed plate is slidably connected inside the sliding groove;
[0013] The above technical solution allows the feed plate to move via a sliding groove.
[0014] Furthermore, the second connecting rod is provided with a second limiting shaft inside, the first connecting rod is provided with a first limiting shaft inside, and the first connecting rod is rotatably connected to the second rotating seat;
[0015] The above technical solution allows the raw material to be compressed using the first and second limiting shafts.
[0016] Furthermore, the second limiting shaft is rotatably connected to the chassis, and the first limiting shaft is rotatably connected to the chassis;
[0017] The above technical solution enables the device to operate completely by rotating the second limiting shaft to the chassis and the first limiting shaft to the chassis.
[0018] Furthermore, the movable plate slides on the outer wall of the limiting post, the middle template slides on the outer wall of the limiting post, the lower template slides on the outer wall of the limiting post, and the limiting plate slides on the outer wall of the limiting post.
[0019] The above technical solution allows the raw material to be compressed by sliding the movable plate, middle template, lower template, and limiting plate on the outer wall of the limiting column.
[0020] Furthermore, a base plate is fixedly connected to the lower surface of the limiting post;
[0021] The above technical solution provides support for the device by fixing a base plate to the lower surface of the limiting column.
[0022] Furthermore, a hopper is fixedly connected to the front end of the upper surface of the chassis;
[0023] The above technical solution allows raw materials to enter the device via a hopper.
[0024] This utility model has the following beneficial effects:
[0025] 1. This utility model proposes a novel heating puffing machine, which uses a first cam and a second cam in conjunction with a linkage mechanism to drive the upper and lower feeding plates to perform different actions, thereby realizing automatic feeding, conveying, and pushing functions. The first cam, the second cam, the third cam, and the fourth cam can also enable the middle and lower templates to cooperate with the first and second linkages to realize an automatic pressing function, preparing for heating and puffing. The die head can be heated, which can press and heat the raw material, causing it to puff and separate. After waiting for the upper and lower feeding plates to push out the finished product, it enters the next cycle. The structure is simple and ingenious.
[0026] 2. The present invention proposes a novel heating puffing machine. The equipment is simple and intuitive to operate, and the operation process conforms to conventional production habits. Workers can quickly master it without complicated training. The whole machine adopts a modular steel structure design, and the layout of each functional unit is scientific and reasonable. Sufficient maintenance space is reserved for key components, which greatly improves the maintainability of the equipment and effectively reduces production and operation costs compared with traditional models. Attached Figure Description
[0027] Figure 1 This is an isometric view of a novel heating puffing machine proposed in this utility model;
[0028] Figure 2 This is a schematic diagram of the structure of a novel heating puffing machine proposed in this utility model;
[0029] Figure 3 This is a schematic diagram of the connecting rod in a novel heating puffing machine proposed in this utility model;
[0030] Figure 4 This is a schematic diagram of the template structure in a novel heating puffing machine proposed in this utility model;
[0031] Figure 5 This is a schematic diagram of the casing of a novel heating puffing machine proposed in this utility model;
[0032] Figure 6 This is an isometric view of the hopper in a novel heating puffing machine proposed in this utility model.
[0033] Legend:
[0034] 1. Top plate; 2. Hopper; 3. Feed plate; 4. Connecting shaft; 5. Chassis; 6. Bearing; 7. First cam; 8. Second cam; 9. Bottom plate; 10. First connecting rod; 11. Second connecting rod; 12. First connecting piece; 13. Limiting post; 14. Middle template; 15. Lower template; 16. Limiting plate; 17. Spring; 18. Moving post; 19. Moving plate; 20. Second connecting piece; 21. Third connecting rod; 22. First rotating seat; 23. Second rotating seat; 24. Sliding groove; 25. Third cam; 26. Fourth cam; 27. First limiting shaft; 28. Second limiting shaft. Detailed Implementation
[0035] 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.
[0036] One embodiment provided by this utility model:
[0037] Reference Figure 1 , Figure 2 and Figure 3 A novel heating puffing machine includes a top plate 1 and a casing 5. A bearing 6 is fixedly connected to one outer wall of the casing 5. A connecting shaft 4 is rotatably connected inside the bearing 6. A first cam 7 is engaged with one side of the outer wall of the connecting shaft 4. A third cam 25 is provided on the outer wall of the first cam 7 away from the middle. A second cam 8 is engaged with the outer wall of the connecting shaft 4 away from the first cam 7. A second connecting rod 11 is rotatably connected to the inner wall of the first cam 7. Two first connecting parts 12 are rotatably connected to the end of the second connecting rod 11 away from the first cam 7. A first rotating seat 22 is rotatably connected to the upper end of the outer wall of the first connecting part 12. A middle template 14 is fixedly connected to the upper surface of the first rotating seat 22. Four limiting posts 13 are provided inside the middle template 14. The top plate 1 is fixedly connected to the upper end of the outer wall of the limiting posts 13.
[0038] Multiple spring pieces 17 are fixedly connected to the lower surface of the top plate 1. A limit plate 16 is fixedly connected to the lower surface of the spring pieces 17. A lower template 15 is provided at the end of the middle of the limit post 13 near the limit plate 16. Movable posts 18 are fixedly connected to the four corners of the lower surface of the lower template 15. A movable plate 19 is fixedly connected to the lower end of the outer wall of the movable post 18. A second rotating seat 23 is fixedly connected to the middle of the lower surface of the movable plate 19. A fourth cam 26 is provided on the outer wall of the second cam 8 away from the middle. A first connecting rod 10 is rotatably connected to the inner wall of the second cam 8.
[0039] Through the first cam 7 and the second cam 8 in conjunction with the linkage mechanism, the upper and lower feed plates 3 are pushed to perform different actions, realizing the functions of automatic feeding, feeding and pushing. The first cam 7, the second cam 8, the third cam 25 and the fourth cam 26 can also enable the middle template 14 and the lower template 15 to cooperate with the first link 10 and the second link 11 to realize the automatic pressing function, which prepares for heating and puffing. The die head can be heated, which can press and heat the raw material, causing it to puff and separate. After waiting for the upper and lower feed plates 3 to push out the finished product, it enters the next cycle. The structure is simple and ingenious.
[0040] Reference Figure 1 , Figure 3 and Figure 5The third cam 25 and the fourth cam 26 are rotatably connected to the outer wall on the side away from the middle by a third connecting rod 21. The end of the third connecting rod 21 away from the third cam 25 and the fourth cam 26 is rotatably connected to a second connecting piece 20. The end of the second connecting piece 20 away from the third connecting rod 21 is rotatably connected to a feed plate 3. The equipment is simple and intuitive to operate, and the operation process conforms to conventional production habits. Workers can quickly master it without complicated training. The whole machine adopts a modular steel structure design, and the layout of each functional unit is scientific and reasonable. All key components have reserved sufficient maintenance space, which greatly improves the maintainability of the equipment and effectively reduces production and operation costs compared with traditional models.
[0041] Reference Figure 1 , Figure 4 and Figure 6 The upper surface of the casing 5 is provided with a sliding groove 24, and the feed plate 3 is slidably connected inside the sliding groove 24. The feed plate 3 can be moved through the sliding groove 24. The second connecting rod 11 is provided with a second limiting shaft 28, and the first connecting rod 10 is provided with a first limiting shaft 27. The first connecting rod 10 is rotatably connected to the second rotating seat 23. The raw material can be pressed through the first limiting shaft 27 and the second limiting shaft 28. The second limiting shaft 28 is rotatably connected to the casing 5, and the first limiting shaft 27 is rotatably connected to the casing 5. The complete operation of the device can be achieved through the rotatable connection of the second limiting shaft 28 to the casing 5 and the rotatable connection of the first limiting shaft 27 to the casing 5.
[0042] Reference Figure 1 , Figure 3 and Figure 4 The movable plate 19 slides on the outer wall of the limiting column 13, the middle template 14 slides on the outer wall of the limiting column 13, the lower template 15 slides on the outer wall of the limiting column 13, and the limiting plate 16 slides on the outer wall of the limiting column 13. The material can be pressed by the sliding of the movable plate 19, the middle template 14, the lower template 15, and the limiting plate 16 on the outer wall of the limiting column 13. The bottom plate 9 is fixedly connected to the lower surface of the limiting column 13. The bottom plate 9 fixedly connected to the lower surface of the limiting column 13 can provide support for the device. The front end of the upper surface of the machine box 5 is fixedly connected to the hopper 2. The material can enter the device through the hopper 2.
[0043] Working principle: The first cam 7 and the second cam 8, in conjunction with the first connecting rod 10, the second connecting rod 11, and the third connecting rod 21, provide horizontal power along the time axis, pushing the upper and lower feed plates 3 to perform different actions, realizing automatic feeding, conveying, and pushing functions. Furthermore, the first cam 7 and the second cam 8 can also enable the middle mold plate 14 and the lower mold plate 15, in conjunction with the first connecting rod 10 and the second connecting rod 11, to provide vertical power along the time axis, pushing the middle mold plate 14 and the lower mold plate 15 to perform different actions, realizing automatic pressing function, preparing for heating and puffing. The die head has a built-in heating tube. The upper and lower feed plates 3 send the raw material into the cavity formed by the middle mold plate 14 and the lower mold plate 15. The middle and lower molds rise simultaneously with the upper mold head to press and heat the raw material, causing it to puff up. Then the upper and lower molds separate, waiting for the upper and lower feed plates 3 to push out the finished product before entering the next cycle. The structure is simple and ingenious.
[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel heating puffing machine, comprising a top plate (1) and a casing (5), characterized in that: A bearing (6) is fixedly connected to one side of the outer wall of the chassis (5). A connecting shaft (4) is rotatably connected inside the bearing (6). A first cam (7) is snapped into one side of the outer wall of the connecting shaft (4). A third cam (25) is provided on the outer wall of the first cam (7) away from the middle. A second cam (8) is snapped into the outer wall of the connecting shaft (4) away from the first cam (7). A second connecting rod (11) is rotatably connected to the inner wall of the first cam (7). Two first connecting pieces (12) are rotatably connected to the end of the second connecting rod (11) away from the first cam (7). A first rotating seat (22) is rotatably connected to the upper end of the outer wall of the first connecting piece (12). A middle template (14) is fixedly connected to the upper surface of the first rotating seat (22). Four limiting posts (13) are provided inside the middle template (14). A top plate (1) is fixedly connected to the upper end of the outer wall of the limiting posts (13). Multiple spring pieces (17) are fixedly connected to the lower surface of the top plate (1). A limiting plate (16) is fixedly connected to the lower surface of the spring pieces (17). A lower template (15) is provided at the middle end of the limiting column (13) near the limiting plate (16). A movable column (18) is fixedly connected to each of the four corners of the lower surface of the lower template (15). A movable plate (19) is fixedly connected to the lower end of the outer wall of the movable column (18). A second rotating seat (23) is fixedly connected to the middle of the lower surface of the movable plate (19). A fourth cam (26) is provided on the outer wall of the second cam (8) away from the middle. A first connecting rod (10) is rotatably connected to the inner wall of the second cam (8).
2. The novel heating puffing machine according to claim 1, characterized in that: The third cam (25) and the fourth cam (26) are rotatably connected to the outer wall of the side away from the middle by a third link (21). The end of the third link (21) away from the third cam (25) and the fourth cam (26) is rotatably connected to a second connector (20). The end of the second connector (20) away from the third link (21) is rotatably connected to a feed plate (3).
3. The novel heating puffing machine according to claim 1, characterized in that: The upper surface of the chassis (5) is provided with a sliding groove (24), and a feed plate (3) is slidably connected inside the sliding groove (24).
4. A novel heating puffing machine according to claim 1, characterized in that: The second connecting rod (11) is provided with a second limiting shaft (28), the first connecting rod (10) is provided with a first limiting shaft (27), and the first connecting rod (10) is rotatably connected to the second rotating seat (23).
5. A novel heating puffing machine according to claim 4, characterized in that: The second limiting shaft (28) is rotatably connected to the chassis (5), and the first limiting shaft (27) is rotatably connected to the chassis (5).
6. A novel heating puffing machine according to claim 1, characterized in that: The movable plate (19) slides on the outer wall of the limiting post (13), the middle template (14) slides on the outer wall of the limiting post (13), the lower template (15) slides on the outer wall of the limiting post (13), and the limiting plate (16) slides on the outer wall of the limiting post (13).
7. A novel heating puffing machine according to claim 1, characterized in that: The lower surface of the limiting post (13) is fixedly connected to the base plate (9).
8. A novel heating puffing machine according to claim 1, characterized in that: A hopper (2) is fixedly connected to the front end of the upper surface of the chassis (5).