A multi-functional machine for mixing and kneading grains
By setting up a double kneading drum, a movable top frame that can move up and down, and a spiral kneading rod, combined with an extrusion hydraulic cylinder driving an extrusion plate and a cutter, the kneading and dough-separating operation of mixed grain buns is realized, solving the problems of single function and low efficiency of existing equipment, and improving the degree of automation and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU KUAILU GRP CO
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-24
Smart Images

Figure CN224539289U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food processing equipment technology, specifically to an integrated machine for kneading and separating dough for multigrain buns. Background Technology
[0002] In the food processing industry, whole grain buns are widely favored by consumers due to their rich content of dietary fiber, vitamins, and minerals, and market demand continues to grow.
[0003] While some existing food processing equipment can achieve mechanized dough kneading, most of them are single-function and can only complete the dough kneading operation. The kneaded dough needs to be manually transferred to the dough-separating equipment for the next step of processing. The intermediate steps are cumbersome, which not only increases labor costs but also poses a risk of secondary contamination of the dough. At the same time, most equipment lacks the design for alternating operation of dual workstations, making it impossible to achieve continuous production of dough kneading and dough separation. This limits production efficiency and makes it difficult to meet the needs of large-scale production.
[0004] In light of this, we propose an integrated dough kneading and separating machine for multigrain buns. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an integrated machine for kneading and dividing dough for multigrain buns.
[0006] The technical solution of this utility model is: The dough mixing and dividing machine for multigrain buns includes a mounting base at the bottom, two dough mixing drums on top of the mounting base, a movable top frame above the mounting base, a dough mixing motor mounted on the top frame, a rotating shaft coaxially fixed to the output shaft of the dough mixing motor, a dough mixing rod fixedly mounted at the bottom of the rotating shaft, the dough mixing rod being spiral-shaped, an extrusion hydraulic cylinder fixedly mounted on the top frame, an extrusion plate fixed to the piston rod of the extrusion hydraulic cylinder, a feeding channel opened directly below the extrusion plate on the mounting base, a blade movable groove perpendicular to the feeding channel opened inside the mounting base, and a cutter installed in the blade movable groove, and an outwardly retractable baffle on the outer wall of the dough mixing drum. By incorporating a double kneading drum, a movable top frame, and a spiral kneading rod, the dough kneading process is mechanized. Simultaneously, an extrusion hydraulic cylinder drives an extrusion plate, which, in conjunction with a feeding channel and cutter, smoothly extrudes and cuts the kneaded dough into smaller portions. A baffle design prevents material splashing by sealing the drum opening during kneading. This overall structure enables a seamless operation from kneading to portioning, improving the automation and efficiency of whole-grain bun production. It should be noted that the bottom of the kneading drum is open.
[0007] As a preferred technical solution, two lifting hydraulic cylinders are symmetrically fixedly installed on the top of the mounting base, and the top of the piston rods of the two lifting hydraulic cylinders are fixedly connected to the bottom of the top movable frame. The two lifting hydraulic cylinders symmetrically drive the top movable frame to move up and down, providing stable and balanced support and driving force for the top movable frame, which is used to pull the dough-making rod into the outside of the dough-making bucket in the vertical direction.
[0008] As a preferred technical solution, a turntable is rotatably mounted at the top center of the mounting base. Two placement slots are symmetrically formed on the top of the turntable, and a conical groove is formed at the bottom of each placement slot. Two dough-making buckets are placed in the two placement slots respectively. The design of the turntable and placement slots enables alternating operation of the two dough-making buckets, i.e., one is kneading dough while the other is dividing it into portions.
[0009] As a preferred technical solution, when the conical groove rotates to be directly opposite the feeding channel, the two are connected. This connection between the conical groove and the feeding channel ensures smooth transport of the dough from the mixing bowl to the feeding channel.
[0010] As a preferred technical solution, a handle is fixedly connected to the outer wall of the baffle, and the baffle is fixedly connected to the outer wall of the kneading bucket by two symmetrically arranged fixing bolts. The handle facilitates the pulling operation of the baffle, while the fixing bolts can firmly fix the baffle to the kneading bucket, ensuring the sealing effect of the bucket opening during kneading.
[0011] As a preferred technical solution, a dough-dividing motor is fixedly installed at the bottom of the mounting base, directly below the center of the blade's movable groove. A mounting block extending into the blade's movable groove is coaxially fixed to the output shaft of the dough-dividing motor, and the cutter is fixedly connected to the mounting block. The dough-dividing motor drives the cutter to move within the blade's movable groove via the mounting block, providing a stable power source for the cutter and enabling rapid and uniform cutting of the extruded dough.
[0012] As a preferred technical solution, a rotary motor is fixedly connected to the bottom of the mounting base. The rotary motor is a stepper motor with a rotation angle of 180 degrees per revolution. A support leg is fixedly connected to each of the four corners of the bottom of the mounting base. The rotary motor is a stepper motor with a rotation angle of 180 degrees per revolution, which can precisely control the rotation angle of the turntable, ensuring that the two mixing drums accurately alternate to the working position and guaranteeing the accuracy of the equipment operation.
[0013] As a preferred technical solution, when the piston rod of the lifting hydraulic cylinder is extended to its longest position, the bottom of the kneading rod is higher than the top of the kneading bucket. When the piston rod of the lifting hydraulic cylinder is retracted to its shortest position and the piston rod of the extrusion hydraulic cylinder is extended to its longest position, the bottom of the extrusion plate is flush with the bottom of the kneading bucket. The stroke design of the lifting hydraulic cylinder and the extrusion hydraulic cylinder ensures that the kneading rod can penetrate deep into the kneading bucket for thorough mixing during kneading, and that the extrusion plate can completely push the dough out of the kneading bucket during extrusion, avoiding dough residue. This ensures both the kneading effect and the utilization rate of the dough, allowing the equipment to fully perform its functions.
[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention mechanizes the dough-kneading process by incorporating a double kneading bucket, a movable top frame, and a spiral kneading rod. Simultaneously, a hydraulic extrusion cylinder drives an extrusion plate in conjunction with a feeding channel and a cutter to smoothly extrude and cut the kneaded dough into smaller portions. A baffle design prevents material splashing by sealing the bucket opening during kneading. The overall structure enables seamless operation from kneading to portioning, improving the automation and efficiency of whole-grain bun production. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 In this utility model Figure 1 Internal structure diagram; Figure 3 This is a top view of the turntable in this utility model; Figure 4 In this utility model Figure 2 Enlarged view of point A in the image; The meanings of the labels in the diagram are as follows: 1. Mounting base; 10. Feeding channel; 11. Blade movable slot; 2. Top movable frame; 20. Kneading motor; 200. Rotating shaft; 201. Kneading rod; 21. Extrusion hydraulic cylinder; 210. Extrusion plate; 3. Lifting hydraulic cylinder; 4. Kneading bucket; 40. Baffle; 41. Handle; 42. Fixing bolt; 5. Support leg; 6. Rotary motor; 7. Turntable; 70. Placement slot; 71. Conical slot; 8. Dividing motor; 80. Mounting block; 81. Cutter. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0017] Please see Figures 1-4 This utility model provides a technical solution: The dough kneading and separating machine for multigrain buns includes a mounting base 1 at the bottom, two kneading drums 4 on the top of the mounting base 1, and a movable top frame 2 that can move up and down above the mounting base 1. A kneading motor 20 is mounted on the movable top frame 2, and a rotating shaft 200 is coaxially fixed to the output shaft of the kneading motor 20. A kneading rod 201 is fixedly mounted at the bottom of the rotating shaft 200. The kneading rod 201 is spiral-shaped. An extrusion hydraulic cylinder 21 is fixedly mounted on the movable top frame 2. An extrusion plate 210 is fixed to the piston rod of the extrusion hydraulic cylinder 21. A feeding channel 10 is opened directly below the extrusion plate 210 on the mounting base 1. A blade movable groove 11 is opened inside the mounting base 1, which is perpendicular to the feeding channel 10. A cutter 81 is installed in the blade movable groove 11. A baffle 40 that can be pulled out is provided on the outer wall of the kneading drums 4. By incorporating a double kneading drum 4, a movable top frame 2, and a spiral kneading rod 201, the kneading operation is mechanized. Simultaneously, the extrusion hydraulic cylinder 21 drives the extrusion plate 210, which, in conjunction with the feeding channel 10 and the cutter 81, smoothly extrudes and cuts the kneaded dough into smaller portions. The baffle 40 design seals the drum opening during kneading to prevent material splashing. The overall structure achieves a seamless operation from kneading to portioning, improving the automation and efficiency of whole grain bun production. It should be noted that the bottom of the kneading drum 4 is open.
[0018] In a preferred embodiment, two lifting hydraulic cylinders 3 are symmetrically fixedly mounted on the top of the mounting base 1, and the top of the piston rods of the two lifting hydraulic cylinders 3 are fixedly connected to the bottom of the top movable frame 2. The two lifting hydraulic cylinders 3 symmetrically drive the top movable frame 2 to move up and down, providing stable and balanced support and driving force for the top movable frame 2, which is used to pull the dough-making rod 201 into the outside of the dough-making bucket 4 in the vertical direction.
[0019] In a preferred embodiment, a turntable 7 is rotatably mounted at the top center of the mounting base 1. Two placement slots 70 are symmetrically formed on the top of the turntable 7, and a conical groove 71 is formed at the bottom of each placement slot 70. The two dough-making buckets 4 are placed in the two placement slots 70 respectively. The design of the turntable 7 and the placement slots 70 enables the alternating operation of the two dough-making buckets 4, i.e., one is kneading dough while the other is dividing it into portions.
[0020] In a preferred embodiment, the conical groove 71 is rotated to be directly opposite the feeding channel 10, and the two are connected. When the conical groove 71 is directly opposite the feeding channel 10, the connection ensures the smooth transport of dough from the mixing bucket 4 to the feeding channel 10.
[0021] In a preferred embodiment, a handle 41 is fixedly connected to the outer wall of the baffle 40, and the baffle 40 is fixedly connected to the outer wall of the kneading bucket 4 by two symmetrically arranged fixing bolts 42. The handle 41 facilitates the pulling operation of the baffle 40, while the fixing bolts 42 can firmly fix the baffle 40 to the kneading bucket 4, ensuring the sealing effect of the bucket opening during kneading.
[0022] In a preferred embodiment, a dough-dividing motor 8 is fixedly mounted at the bottom of the mounting base 1, directly below the center of the blade movement groove 11. A mounting block 80, extending into the blade movement groove 11, is coaxially fixed to the output shaft of the dough-dividing motor 8. The cutter 81 is fixedly connected to the mounting block 80. The dough-dividing motor 8 drives the cutter 81 to move within the blade movement groove 11 via the mounting block 80, providing a stable power source for the cutter 81 and enabling rapid and uniform cutting of the extruded dough.
[0023] In a preferred embodiment, a rotary motor 6 is fixedly connected to the bottom of the mounting base 1. The rotary motor 6 is a stepper motor and rotates 180 degrees at a time. A support leg 5 is fixedly connected to each of the four corners of the bottom of the mounting base 1. The rotary motor 6 is a stepper motor and rotates 180 degrees at a time, which can precisely control the rotation angle of the turntable 7, ensuring that the two mixing drums 4 accurately alternate to the working position and guaranteeing the accuracy of the equipment operation.
[0024] In a preferred embodiment, when the piston rod of the lifting hydraulic cylinder 3 is extended to its longest position, the bottom of the kneading rod 201 is higher than the top of the kneading bucket 4. When the piston rod of the lifting hydraulic cylinder 3 is retracted to its shortest position and the piston rod of the extrusion hydraulic cylinder 21 is extended to its longest position, the bottom of the extrusion plate 210 is flush with the bottom of the kneading bucket 4. The stroke design of the lifting hydraulic cylinder 3 and the extrusion hydraulic cylinder 21 ensures that the kneading rod 201 can penetrate deep into the kneading bucket 4 for thorough mixing during kneading, and that the extrusion plate 210 can completely push the dough out of the kneading bucket 4 during extrusion, avoiding dough residue. This ensures both the kneading effect and the utilization rate of the dough, allowing the equipment to function fully.
[0025] In use, the integrated dough kneading and separating machine for multigrain buns is as follows: First, insert the baffle 40 into the outer wall of the kneading bucket 4 using the handle 41 and lock it with the fixing bolt 42 to seal the bucket opening. Then, add the multigrain powder, water, yeast, and other ingredients to one of the kneading buckets 4. At this time, the rotary motor 6 drives the turntable 7 to rotate 180 degrees, aligning the kneading bucket 4 with the lower part of the top movable frame 2. The piston rods of the two lifting hydraulic cylinders 3 shorten, causing the top movable frame 2 to descend, allowing the spiral kneading rod 201 to penetrate into the kneading bucket 4. The kneading motor 20 starts, driving the kneading rod 201 to rotate via the rotating shaft 200. The spiral structure thoroughly mixes and kneads the ingredients, achieving mechanized dough kneading.
[0026] After the dough is kneaded, the lifting hydraulic cylinder 3 extends, causing the top movable frame 2 to rise, so that the kneading rod 201 detaches from the kneading bucket 4. The rotary motor 6 drives the turntable 7 to rotate 180 degrees again, rotating the kneading bucket 4 containing the dough to directly below the extrusion plate 210. At the same time, another kneading bucket 4 rotates to the kneading station for the next round of material addition. At this time, the baffle 40 of the kneading bucket 4 is pulled out, the hydraulic cylinder retracts, causing the top movable frame 2 to descend to the appropriate position, and the piston rod of the extrusion hydraulic cylinder 21 extends, pushing the extrusion plate 210 downward. Since the bottom of the kneading bucket 4 is open and the lower conical groove 71 is connected to the feeding channel 10, the extrusion plate 210 extrudes the dough from the bottom of the kneading bucket 4, guiding it into the feeding channel 10 through the conical groove 71.
[0027] When the dough is conveyed through the feeding channel 10, the dough-dividing motor 8 starts, driving the cutter 81 to move rapidly within the blade slot 11 via the mounting block 80, uniformly cutting the continuously extruded dough into dough portions of uniform size, thus completing the dough-dividing operation. During the extrusion process, the bottom of the extrusion plate 210 can be flush with the bottom of the mixing bowl 4 to ensure no dough residue remains.
[0028] The entire process, through alternating operation of two buckets, achieves continuous and automated operation from raw material mixing to dough division, greatly improving the production efficiency and quality stability of whole grain buns.
[0029] It should be added that when the baffle 40 is pulled out and the piston rod of the extrusion hydraulic cylinder 21 is extended, it is necessary to ensure that part of the baffle 40 is inside the dough mixing drum 4 to ensure that the side wall of the dough mixing drum 4 is sealed.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A dough mixing and dividing machine for multigrain buns, characterized in that: The system includes a mounting base (1) at the bottom, two dough mixing buckets (4) on the top of the mounting base (1), a movable top frame (2) that can move up and down above the mounting base (1), a dough mixing motor (20) is mounted on the movable top frame (2), a rotating shaft (200) is coaxially fixed to the output shaft of the dough mixing motor (200), a dough mixing rod (201) is fixedly mounted at the bottom of the rotating shaft (200), the dough mixing rod (201) is spiral-shaped, an extrusion hydraulic cylinder (21) is fixedly mounted on the movable top frame (2), an extrusion plate (210) is fixed to the piston rod of the extrusion hydraulic cylinder (21), a feeding channel (10) is opened directly below the extrusion plate (210) on the mounting base (1), a blade movable groove (11) is opened inside the mounting base (1) that is perpendicular to the feeding channel (10), and a cutter (81) is installed in the blade movable groove (11). A baffle (40) that can be pulled out is provided on the outer wall of the dough mixing bucket (4).
2. The dough mixing and dividing machine for multigrain buns as described in claim 1, characterized in that: Two lifting hydraulic cylinders (3) are symmetrically fixedly installed on the top of the mounting base (1), and the top of the piston rod of the two lifting hydraulic cylinders (3) is fixedly connected to the bottom of the top movable frame (2).
3. The dough mixing and dividing machine for multigrain buns as described in claim 2, characterized in that: A turntable (7) is rotatably installed at the top center of the mounting base (1). Two placement slots (70) are symmetrically opened on the top of the turntable (7), and a conical slot (71) is opened at the bottom of each placement slot (70). Two dough buckets (4) are placed in the two placement slots (70) respectively.
4. The dough mixing and dividing machine for multigrain buns as described in claim 3, characterized in that: When the conical groove (71) is rotated to be directly opposite the feeding channel (10), the two are connected.
5. The dough mixing and dividing machine for multigrain buns as described in claim 4, characterized in that: A handle (41) is fixedly connected to the outer wall of the baffle (40), and the baffle (40) is fixedly connected to the outer wall of the dough mixing bucket (4) by two symmetrically arranged fixing bolts (42).
6. The dough mixing and dividing machine for multigrain buns as described in claim 5, characterized in that: A splitting motor (8) is fixedly installed at the bottom of the mounting base (1) directly below the center of the blade movable groove (11). A mounting block (80) extending into the blade movable groove (11) is coaxially fixed to the output shaft of the splitting motor (8). The cutter (81) is fixedly connected to the mounting block (80).
7. The dough mixing and dividing machine for multigrain buns as described in claim 6, characterized in that: A rotary motor (6) is fixedly connected to the bottom of the mounting base (1). The rotary motor (6) is a stepper motor and rotates 180 degrees at a time. A support leg (5) is fixedly connected to each of the four corners of the bottom of the mounting base (1).
8. The dough mixing and dividing machine for multigrain buns as described in claim 7, characterized in that: When the piston rod of the lifting hydraulic cylinder (3) is extended to its longest length, the bottom of the dough mixing rod (201) is higher than the top of the dough mixing bucket (4). When the piston rod of the lifting hydraulic cylinder (3) is retracted to its shortest length and the piston rod of the extrusion hydraulic cylinder (21) is extended to its longest length, the bottom of the extrusion plate (210) is flush with the bottom of the dough mixing bucket (4).