A rotary slicing apparatus for danish type bread production

Abstract

The utility model relates to food processing machinery technical field, concretely relates to a kind of rotary face cutting equipment for Danish bread production.The utility model provides the technical scheme provided by the utility model to provide a kind of rotary face cutting equipment for Danish bread production, including rack, cutter assembly, drive mechanism and conveyer belt;The cutter assembly includes triangular cutter, rotating shaft and cutting power source;The drive mechanism includes synchronous wheel group and the rotating power source for driving synchronous wheel group;Wherein, the triangular cutter is rotatably connected with rack by rotating shaft, the cutting power source drives triangular cutter to do reciprocating motion along vertical direction, the rotating power source drives triangular cutter to do rotary motion around rotating shaft by synchronous wheel group.The conveyer belt is installed below triangular cutter.The utility model solves the problems of equipment redundancy, efficiency bottleneck and poor direction consistency in the prior art by the above structure.

Description

Technical Field

[0001] This utility model relates to the field of food processing machinery technology, specifically to a rotary cutting device for the production of Danish bread. Background Technology

[0002] Traditional Danish croissants are classic baked goods made with a core technique of folding and puffing together layers of butter and dough. Their characteristic shape is a spiral or croissant-like exterior, with a uniform honeycomb-like, crumbly interior. They are one of the most consumed puff pastry products in the global baking market. Their role is to satisfy consumers' demand for high-quality baked goods through their unique crisp texture and visual appeal. They are also a key category for baking companies to achieve product differentiation and large-scale production, occupying an important position in modern automated baking production lines.

[0003] Existing cutting equipment for producing this product has significant problems:

[0004] Firstly, there is serious equipment redundancy. Option 1 requires multiple machines such as a cutting machine, a tray stacking machine, a rotating mechanism, and a rolling machine to be connected in series, which is complex and discontinuous, limiting production capacity. Option 2 uses a double reverse belt plate to replace the rotating mechanism to achieve double dough sheet output, but it forces the use of two rolling machines, resulting in double the cost and energy consumption.

[0005] Secondly, the efficiency bottleneck is prominent. After cutting, the rotating mechanism needs to rotate 90° and reset. The reset time is too long, which restricts the production cycle.

[0006] Third, poor directional consistency causes the dough to easily shift during rotation and tray arrangement, leading to misalignment during rolling and increasing the scrap rate. These problems collectively result in low automation and poor overall efficiency in the production of Danish breads. Utility Model Content

[0007] This invention provides an integrated rotary cutting device for the production of Danish bread, aiming to solve problems such as equipment redundancy, efficiency bottlenecks, and poor directional consistency in the prior art.

[0008] The technical solution provided by this utility model is a rotary cutting device for the production of Danish bread, including a frame, a cutting blade assembly, a drive mechanism and a conveyor belt;

[0009] The cutting blade assembly includes a triangular cutting blade, a rotating shaft, and a cutting power source;

[0010] The drive mechanism includes a synchronous pulley set and a rotational power source for driving the synchronous pulley set;

[0011] The triangular cutter is rotatably connected to the frame via a rotating shaft, the cutting power source drives the triangular cutter to reciprocate in the vertical direction, and the rotational power source drives the triangular cutter to rotate around the rotating shaft via a set of synchronous pulleys.

[0012] The conveyor belt is installed below the triangular cutter.

[0013] As a preferred technical solution of this utility model, the triangular cutter is a detachable mold, and its cutting edge shape is an isosceles right triangle or an equilateral triangle arranged at equal intervals.

[0014] As a preferred embodiment of this utility model, the conveyor belt is a continuously operating annular conveyor belt with anti-slip texture on its surface, and the running speed of the conveyor belt is adapted to the cutting frequency of the cutter.

[0015] As a preferred embodiment of this utility model, the output end of the rotary power source is driven to connect to an output wheel via a first reducer, the output wheel is connected to a driven wheel via a synchronous belt, the top of the rotary shaft is slidably connected to the center of the driven wheel, and the sliding connection of the driven wheel is provided with a guide groove for longitudinal guidance, and the top of the rotary shaft is provided with a limit key in the guide groove.

[0016] As a preferred embodiment of this utility model, the output end of the cutting power source is driven by a transmission rod connected to a second reducer, and the other end of the transmission rod is rotatably connected to the top of the rotating shaft via an extension rod.

[0017] As a preferred technical solution of this utility model, the top of the rotating shaft is rotatably connected to the driven wheel, and the other end of the connector is rotatably connected to the extension rod. The bottom of the connector rotates with the rotating shaft about the axis of the rotating shaft, and the top of the connector rotates in the same direction as the swing surface formed by the movement trajectory of the extension rod.

[0018] As a preferred technical solution of this utility model, both the cutting power source and the rotation power source are servo motors or stepper motors, and the cutting power source, the rotation power source and the transmission belt are all linked and controlled by an external controller.

[0019] The advantages of this utility model compared with the prior art are as follows:

[0020] 1. Equipment integration and cost optimization: By integrating the cutter assembly and drive mechanism, the traditional combination of multiple equipment such as cutting machine and rotating mechanism is replaced, realizing the integration of "cutting-rotating-forming", reducing the number of equipment by more than 50%, avoiding the configuration of two rolling machines in the dual-output scheme, and reducing equipment cost and energy consumption.

[0021] 2. Significantly improved production efficiency: The rotary power source adopts ±90° alternating rotation logic (no need to reset to the initial position), shortening the single rotation cycle by 30%; the cutting and rotation actions are controlled by servo motor linkage, and the production cycle can reach 60 times / minute, which is 40% more efficient than the traditional rotary mechanism.

[0022] 3. Ensure directional consistency: The rotation angle of the cutter and the cutting sequence are controlled in tandem (0° / 180° start cutting) to ensure the cutting position accuracy of the dough is ±1mm, reducing the scrap rate to below 2%.

[0023] 4. Versatile and easy to maintain: The triangular cutter has a detachable and replaceable blade edge (isosceles right angle / equilateral triangle) to adapt to various sizes of dough sheets; the modular design of the cutter supports quick replacement, reducing maintenance time by 60%.

[0024] 5. Enhanced motion accuracy and stability: The synchronous pulley set adopts synchronous belt drive with a transmission efficiency of >98%, eliminating the risk of slippage; the guide groove + limit key sliding pair between the driven pulley and the rotating shaft (similar to the machine tool guide rail-slider structure) ensures zero axial offset during rotation, and the long-term operation accuracy decay rate is <0.5%. Attached Figure Description

[0025] Figure 1 This is a structural diagram of a rotary cutting device for producing Danish bread according to this utility model.

[0026] Figure 2 This is a front view of a rotary cutting device for producing Danish bread according to this utility model.

[0027] Figure 3 This is a structural diagram of the drive mechanism of a rotary cutting device for producing Danish bread according to this utility model.

[0028] Figure 4 This is a structural diagram of the triangular cutter of a rotary cutting device for producing Danish bread according to this utility model.

[0029] Figure 5 This is a schematic diagram of the cutting path of a rotary cutting device for producing Danish bread according to this utility model.

[0030] As shown in the figure:

[0031] 1. Rack;

[0032] 2. Cutting blade assembly; 21. Triangular cutting blade; 22. Rotating shaft; 23. Cutting power source; 24. Second reducer; 25. Transmission rod; 26. Extension rod; 27. Connector; 28. Pad plate;

[0033] 3. Drive mechanism; 31. Synchronous pulley set; 32. Rotary power source; 33. First reducer; 34. Output pulley; 35. Synchronous belt; 36. Driven pulley;

[0034] 4. Conveyor belt. 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] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Example 1:

[0038] This utility model provides a rotary cutting device for producing Danish bread, comprising a frame 1, a cutting blade assembly 2, a drive mechanism 3, and a conveyor belt 4. The frame 1, serving as the load-bearing base, is welded from aluminum alloy profiles, combining high strength with lightweight design. A bracket is mounted on the upper part of the frame 1 to fix the cutting blade assembly 2 and the drive mechanism 3.

[0039] As per the instruction manual Figure 1-5 As shown, the cutter assembly 2 includes a triangular cutter 21, a rotating shaft 22, and a cutting power source 23. The drive mechanism 3 includes a synchronous pulley set 31 and a rotating power source 32 for driving the synchronous pulley set 31. The triangular cutter 21 is rotatably connected to the frame 1 through the rotating shaft 22. The cutting power source 23 drives the triangular cutter 21 to reciprocate in the vertical direction. The rotating power source 32 drives the triangular cutter 21 to rotate around the rotating shaft 22 through the synchronous pulley set 31.

[0040] Specifically, the output end of the rotary power source 32 is driven to connect to the output wheel 34 via the first reducer 33. The output wheel 34 is connected to the driven wheel 36 via the synchronous belt 35. The top of the rotary shaft 22 is slidably connected to the center of the driven wheel 36. The sliding connection of the driven wheel 36 is provided with a guide groove for longitudinal guidance. The top of the rotary shaft 22 is located in the guide groove and a limit key is correspondingly provided.

[0041] Furthermore, both the output wheel 34 and the driven wheel 36 are wheel structures with synchronous tooth grooves machined on their surfaces, and the diameter of the output wheel 34 is smaller than the diameter of the driven wheel 36. The inner wall of the synchronous belt 35 is provided with synchronous teeth corresponding to the synchronous tooth grooves to enhance the accuracy of synchronous drive and prevent slippage during use. At the same time, the synchronous belt 35 can be reinforced with materials such as steel wire embedded inside to prevent deformation during long-term use and affect its use. In addition, the synchronous belt 35 can be replaced after damage.

[0042] Specifically, the output end of the cutting power source 23 is driven by the second reducer 24 to connect to the transmission rod 25. The other end of the transmission rod 25 is rotatably connected to the top of the rotating shaft 22 via the extension rod 26. The two ends of the transmission rod 25 are respectively connected to the output shaft of the second reducer 24 and the top of the rotating shaft 22, forming an eccentric drive structure, which enables the transmission rod 25 to move up and down to achieve the purpose of cutting up and down.

[0043] Furthermore, a connector 27 is rotatably connected to the top of the rotating shaft 22, which passes through the driven wheel 36. The other end of the connector 27 is rotatably connected to the extension rod 26. The bottom of the connector 27 rotates with the rotating shaft 22 around its axis. The top of the connector 27 rotates in the same direction as the swing surface formed by the movement trajectory of the extension rod 26. Through the eccentric rotation of the extension rod 26, the upper part of the connector 27 is driven to swing, thereby enabling the connector 27 to drive the entire rotating shaft 22 to move up and down. Moreover, due to the rotational connection at the bottom of the connector 27, the rotating shaft 22 will not rotate during the rotation of the driven wheel 36.

[0044] In this embodiment, the conveyor belt 4 is installed below the triangular cutter 21. The conveyor belt 4 is a continuously operating PU material ring conveyor belt with diamond-shaped anti-slip texture pressed on its surface. This is used to continuously convey the rolled-out dough sheet, facilitating continuous cutting by the triangular cutter 21, and reducing dough sheet movement during the cutting process through the anti-slip texture. A support plate 28 is provided below the cutter assembly to support the bottom of the conveyor belt 4 during cutting. Furthermore, the conveyor belt 4 is driven by an independent variable frequency motor. The running speed of the conveyor belt 4 is matched to the cutting frequency of the cutter. The controller collects the cutter rotation angle signal and the conveyor belt 4 displacement signal in real time through an encoder, dynamically adjusting the variable frequency motor speed (adjustment accuracy ±0.5Hz) to ensure that the dough sheet passes through the cutting area at a uniform speed (speed fluctuation <2%). This mechanism references the speed matching principle of the paper feed belt in a printing press, avoiding pulling or piling of the dough sheet due to speed mismatch.

[0045] In this embodiment, both the cutting power source 23 and the rotation power source 32 are servo motors or stepper motors, and the cutting power source 23, the rotation power source 32 and the transmission belt are all linked and controlled by an external controller.

[0046] Specifically, the frame 1 is equipped with multiple photoelectric sensors. The photoelectric sensors are used to detect the rotation angle of the cutter and the position of the dough. The photoelectric sensors are electrically connected to the controller to assist in control, thereby enabling the coordination of the ±90° alternating rotation logic of the cutter with the cutting timing.

[0047] Furthermore, the control system is based on a Siemens S7-200 SMART PLC. Both the cutting power source 23 and the rotation power source 32 are servo motors, which are linked and controlled by pulse signals (pulse frequency corresponds to rotation speed, and pulse number corresponds to displacement). At the same time, multiple photoelectric sensors (Omron E3Z-T61) are installed on the frame 1. The photoelectric sensors are used to detect the rotation angle of the cutter and the position of the dough. The photoelectric sensors are electrically connected to the controller to assist in the control, thereby enabling the coordination of the ±90° alternating rotation logic of the cutter with the cutting timing. The coordination logic is as follows: when the cutter rotates to 0° or 180° (triggered by the photoelectric sensor signal), the PLC starts the cutting power source 23 to complete the downward cutting action; if the sensor at the dough entry end detects that the dough offset is too large, the PLC immediately adjusts the speed of the conveyor belt 4 to ensure the cutting position accuracy.

[0048] The implementation principle of a rotary cutting device for producing Danish bread according to an embodiment of this application is as follows:

[0049] When the equipment is working, the conveyor belt 4 continuously transports Danish bread dough to the cutter at an appropriate speed; the rotary power source 32 starts and drives the output wheel 34 to rotate via the first reducer 33. The output wheel 34 drives the driven wheel 36 and the vertically sliding rotating shaft 22 to rotate around its own axis via the synchronous belt 35; the cutting power source 23 starts synchronously and drives the rotating shaft 22 to move up and down along the guide groove via the second reducer 24, transmission rod 25, extension rod 26 and connector 27, so that the triangular cutter 21 can make a vertical downward cut of 180 degrees in both directions during rotation, and make a spiral cut on the dough.

[0050] Photoelectric sensors monitor the cutter angle and dough position in real time: one sensor triggers cutting when the cutter reaches 0° / 180°, while another sensor detects dough offset and provides feedback to compensate for the speed of conveyor belt 4. After cutting, the dough enters the rolling process with conveyor belt 4, and the cutter assembly 2 resets under PLC command (rotating shaft 22 rises to its highest position), ready for the next cycle. Throughout the process, the "rotation-cutting-feed" actions are seamlessly connected, enabling continuous and high-precision production of Danish bread.

[0051] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A rotary cutting device for producing Danish bread, characterized in that: It includes a frame (1), a cutter assembly (2), a drive mechanism (3), and a conveyor belt (4); The cutter assembly (2) includes a triangular cutter (21), a rotating shaft (22), and a cutting power source (23); The drive mechanism (3) includes a synchronous wheel set (31) and a rotational power source (32) for driving the synchronous wheel set (31). The triangular cutter (21) is rotatably connected to the frame (1) via a rotating shaft (22), the cutting power source (23) drives the triangular cutter (21) to reciprocate in the vertical direction, and the rotating power source (32) drives the triangular cutter (21) to rotate around the rotating shaft (22) via a synchronous wheel set (31). The conveyor belt (4) is installed below the triangular cutter (21).

2. The rotary cutting device for producing Danish bread according to claim 1, characterized in that: The triangular cutter (21) is a detachable mold, and its cutting edge is an isosceles right triangle or an equilateral triangle arranged at equal intervals.

3. A rotary cutting device for producing Danish bread according to claim 1, characterized in that: The conveyor belt (4) is a continuously operating annular conveyor belt with anti-slip texture on its surface. The running speed of the conveyor belt (4) is adapted to the cutting frequency of the cutter.

4. A rotary cutting device for producing Danish bread according to claim 1, characterized in that: The output end of the rotary power source (32) is driven to connect to the output wheel (34) via the first reducer (33). The output wheel (34) is connected to the driven wheel (36) via the synchronous belt (35). The top of the rotary shaft (22) is slidably connected to the center of the driven wheel (36). The sliding connection of the driven wheel (36) is provided with a guide groove for longitudinal guidance. The top of the rotary shaft (22) is located in the guide groove and a limit key is correspondingly provided.

5. A rotary cutting device for producing Danish bread according to claim 4, characterized in that: The output end of the cutting power source (23) is driven by a transmission rod (25) through a second reducer (24), and the other end of the transmission rod (25) is rotatably connected to the top of the rotating shaft (22) through an extension rod (26).

6. A rotary cutting device for producing Danish bread according to claim 5, characterized in that: The top of the rotating shaft (22) is rotatably connected to the driven wheel (36) and the other end of the connector (27) is rotatably connected to the extension rod (26). The bottom of the connector (27) rotates with the rotating shaft (22) around the axis of the rotating shaft (22), and the top of the connector (27) rotates in the same direction as the swing surface formed by the movement trajectory of the extension rod (26).

7. A rotary cutting device for producing Danish bread according to claim 1, characterized in that: The cutting power source (23) and the rotation power source (32) are both servo motors or stepper motors, and the cutting power source (23), the rotation power source (32) and the transmission belt are all linked and controlled by an external controller.

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