Bread code spraying device and code spraying process thereof

Abstract

The application discloses a bread code spraying device and a code spraying process and relates to the food processing technical field.The bread code spraying device comprises a conveying assembly, the conveying assembly comprises a conveying belt, a feeding assembly is arranged in front of the conveying belt, a guide assembly, a flattening assembly, a code spraying assembly and a solidifying assembly are sequentially arranged above the conveying belt, the guide assembly comprises a guide plate, the guide plate enables materials to enter an entrance in front of the flattening assembly, the flattening assembly comprises a first connecting assembly, a second connecting assembly and an extruding assembly, the extruding assembly is arranged in an inclined mode from top to bottom along the conveying direction of the conveying belt, the code spraying assembly is arranged behind the flattening assembly, the solidifying assembly is arranged behind the code spraying assembly, the solidifying assembly comprises a blower, and the blowers are sequentially arranged along the conveying direction of the conveying belt.The bread is subjected to pattern code spraying by the code spraying machine, the bread is extruded before code spraying to enable the height of the bread to be within the code spraying range, and the pattern after code spraying is solidified.

Description

Technical Field

[0001] This invention relates to the field of food processing technology, and in particular to a bread inkjet printing device and its inkjet printing process. Background Technology

[0002] With the development of the food industry, food not only needs to be delicious but also visually appealing. Spraying certain patterns or text on the surface of food can enhance its appearance.

[0003] Currently, patterns are carved on pastries either manually or using molds that already have designs. However, for bread, manual carving would be too costly and inefficient, and there are no suitable molds available to create patterns on the bread surface during baking.

[0004] In automated equipment, food inkjet printers (or food printers) can be used to achieve this. However, the printing range of the inkjet printer's printhead is fixed. When the height of the bread passing by is greater than the height of the printhead, the printhead comes into contact with the bread surface, and the printing function cannot be achieved. When the height of the bread passing by is too low and less than the printing range of the printhead, the printing is blurry, and the printing function also cannot be achieved. Therefore, the printing function can only be achieved when the bread passing by the inkjet printer is within the printhead's error tolerance range.

[0005] Therefore, to solve the above-mentioned technical problems, a new technical solution is needed. Specifically, a bread inkjet printing device and its inkjet printing process are required. Summary of the Invention

[0006] This invention addresses the technical problem that existing inkjet printers require the food height to be within permissible limits, by providing a bread inkjet printer and its inkjet printing process.

[0007] To achieve the above objectives, the following technical solution is provided: a bread inkjet printing device.

[0008] The system includes a conveying component, which includes a conveyor belt and a feeding component located in front of the conveyor belt.

[0009] The conveyor belt is sequentially equipped with a guiding component, a flattening component, a coding component, and a curing component.

[0010] The guiding assembly includes a guide plate that directs material into an inlet in front of the flattening assembly;

[0011] The flattening assembly includes: a first connecting assembly, a second connecting assembly, and an extrusion assembly. The first connecting assembly and the second connecting assembly are mounted on the conveying assembly and connected to both ends of the extrusion assembly. The extrusion assembly is disposed above the conveyor belt and has a gap between it and the conveyor belt. The extrusion assembly is inclined from top to bottom along the conveying direction of the conveyor belt.

[0012] The extrusion assembly includes: a first fixed frame, an extrusion conveyor belt, a second fixed frame, and a connecting bracket. The extrusion conveyor belt is disposed between the first fixed frame and the second fixed frame, and the connecting bracket is disposed at both ends of the extrusion assembly and is respectively connected to the first connecting component and the second connecting component.

[0013] The extrusion conveyor belt has the same transmission direction as the conveyor belt; the inkjet printing component is located behind the flattening component;

[0014] The curing component is located behind the inkjet printer, and the curing component includes a blower, which is arranged sequentially along the conveyor belt transmission direction.

[0015] Preferably, the conveying assembly includes a main fixing frame, a conveyor belt, and support legs. The main fixing frame is disposed on both sides of the conveyor belt, and the support legs are disposed below the main fixing frame. The first connecting assembly and the second connecting assembly are mounted on the main fixing frame.

[0016] Preferably, the first connecting component and the second connecting component have the same structure, including a first bracket, a first adjusting rod, a second adjusting rod and a third adjusting rod disposed on the first bracket; the first bracket is mounted on the main fixing frame;

[0017] The first bracket is mounted on the conveyor belt and has a first mounting hole, a second mounting hole, and a third mounting hole. The first adjusting rod, the second adjusting rod, and the third adjusting rod pass through the first bracket and are connected to the connecting bracket. The first adjusting rod is threadedly connected to the first mounting hole and then contacts one side of the connecting bracket. The third adjusting rod is threadedly connected to the third mounting hole and then contacts the other side of the connecting bracket. The second adjusting rod is threadedly connected to a screw sleeve, and the screw sleeve is engaged with the second mounting hole. The second adjusting rod is fixedly connected to the connecting bracket in the middle.

[0018] Preferably, the guide assembly includes a guide bracket, a mounting frame, a connecting rod, and a guide plate; the guide bracket is mounted on the main fixing frame, the guide bracket is provided with a mounting frame, and the connecting rod passes through the mounting frame and is fixedly connected to the guide plate.

[0019] Preferably, the feeding assembly includes a feeding hopper, and a first distributing conveyor belt, a second distributing conveyor belt, and a third distributing conveyor belt are sequentially arranged at the discharge port of the feeding hopper, with the rotation speeds of the first distributing conveyor belt, the second distributing conveyor belt, and the third distributing conveyor belt increasing sequentially; a first distributing plate is provided on the first distributing conveyor belt, a second distributing plate is provided on the second distributing conveyor belt, and a third distributing plate is provided on the third distributing conveyor belt; the first distributing plate, the second distributing plate, and the third distributing plate are inclinedly arranged above the first distributing conveyor belt, the second distributing conveyor belt, and the third distributing conveyor belt.

[0020] Preferably, the first, second, and third dividing plates are arranged in an approximately "S" shape.

[0021] Preferably, it further includes an arc-shaped material distribution conveyor belt, which is disposed behind the third material distribution conveyor belt, and a fourth material distribution plate is provided on the arc-shaped material distribution conveyor belt, which is zigzagged with the third material distribution plate.

[0022] Preferably, the first and second fixing frames are positioned below the plane where the extrusion conveyor belt is located.

[0023] Preferably, the curing assembly includes a second bracket, a mounting slot, and a blower. The second bracket is mounted on the main fixing frame, the mounting slot is disposed on the second bracket, a ventilation hole is provided below the mounting slot, and the blower is disposed in the mounting slot.

[0024] This invention also discloses a bread inkjet printing process, comprising the aforementioned inkjet printing equipment, including the following steps:

[0025] S1: Adjust the distance between the flattening component and the conveyor belt according to the height of the bread being produced;

[0026] S11: Adjust the second adjusting rod of the first connecting component so that the distance between the extrusion conveyor belt and the conveyor belt at the feed inlet of the flattening component is greater than the maximum height of the bread being produced;

[0027] S12: Adjust the second adjusting rod of the second connecting component so that the distance between the extrusion conveyor belt at the discharge port of the flattening component and the conveyor belt is within the inkjet height range of the inkjet printing terminal of the inkjet printing component;

[0028] S2: Adjust the angle of the guide assembly so that the guide plate of the guide assembly is located on the side in front of the feed inlet of the flattening assembly;

[0029] S3: Adjust the angles of the first and second adjusting rods according to the ground inclination so that the extrusion assembly is parallel to the surface of the conveyor belt.

[0030] S4: Adjust the tilt angle of the first, second, and third dividing plates so that the first, second, and third dividing plates are arranged in a near "S" shape; and the opening distance between the first and second dividing plates is greater than the opening distance between the second and third dividing plates.

[0031] S5: Start the curing component, conveying component, feeding component, flattening component and inkjet printing component in sequence to perform inkjet printing operation.

[0032] Beneficial effects:

[0033] The bread coding device disclosed in this invention uses a coding machine (or food printer) to print codes on bread. It is suitable for factory assembly line production, reducing labor costs while improving production efficiency.

[0034] Before printing the code on the bread, the bread of varying heights is flattened and adjusted so that the height of the bread is within the printing range of the printer. This solves the technical problem of being able to print the code on bread of varying heights after baking, thus achieving the effects of reducing labor costs, increasing printing efficiency, and producing clear patterns.

[0035] Before inkjet printing, the bread being fed is adjusted so that the scattered bread is aligned into a single line and moves forward with the conveyor belt. The guide plate then guides the adjusted bread to the front of the flattening component.

[0036] After inkjet printing, the inkjet pattern is rapidly cooled and solidified into a fixed pattern by a curing component. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the flattening component structure of the present invention. Figure 1 .

[0038] Figure 2 This is a schematic diagram of the flattening component structure of the present invention. Figure 2 .

[0039] Figure 3 yes Figure 2 A magnified structural diagram of point A in the middle.

[0040] Figure 4 This is a schematic diagram of the structure of the first connecting component of the present invention.

[0041] Figure 5 This is a schematic diagram of the feeding component of the present invention.

[0042] in:

[0043] 1. Main fixed frame; 11. Conveyor belt; 12. Support leg; 21. Guide bracket; 22. Mounting frame; 23. Connecting bracket; 24. Guide plate; 31. First bracket; 311. First mounting hole; 312. Second mounting hole; 313. Third mounting hole; 32. First adjusting rod; 33. Second adjusting rod; 331. Rotary wheel; 332. Screw; 333. Screw sleeve; 34. Third adjusting rod; 35. Extrusion assembly; 351. First fixed frame; 352. Extrusion... 353. Press conveyor belt; 354. Second fixed frame; 355. Connecting bracket; 356. Motor; 4. Second connecting assembly; 5. Marking assembly; 61. Second bracket; 62. Mounting slot; 63. Blower; 71. Feed hopper; 72. First material distribution conveyor belt; 721. First material distribution plate; 73. Second material distribution conveyor belt; 731. Second material distribution plate; 74. Third material distribution conveyor belt; 741. Third material distribution plate; 75. Arc-shaped material distribution conveyor belt; 751. Fourth material distribution plate. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative and are not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0045] In the description of this invention, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0046] In the description of this invention, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0047] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a conductive connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] like Figures 1 to 5 As shown, a bread coding device includes a feeding component, a conveying component, a guiding component, a flattening component, a coding component, and a curing component. The feeding component is located in front of the conveying component. The guiding component, flattening component, coding component, and curing component are all mounted on the conveying component and arranged sequentially. In this embodiment, the printing ports of the flattening component and coding component and the curing component are preferably arranged in a straight line above the conveying component. Bread material is fed into the feeding component. After being sorted by the feeding component, the scattered bread material is arranged into a row and conveyed to the conveying component. The guiding component guides the conveyed bread, causing it to move forward along the edge of the guide plate on the conveying component and to the inlet in front of the flattening component. The flattening component compresses the incoming bread, ensuring that the height of the bread is uniform within the allowable error range of the coding component. The coding component prints codes on the bread, forming text or patterns on the bread surface. The curing component quickly solidifies the printed bread, fixing the pattern and preventing deformation in subsequent processes (such as packaging).

[0049] like Figure 5 As shown, the feeding assembly includes a feeding hopper 71. At the outlet of the feeding hopper 71, a first distributing conveyor belt 72, a second distributing conveyor belt 73, and a third distributing conveyor belt 74 are sequentially arranged. These three conveyor belts are segmented and spaced at intervals, with consistent heights and their top conveying surfaces on the same horizontal plane. The rotational speeds of the first distributing conveyor belt 72, the second distributing conveyor belt 73, and the third distributing conveyor belt 74 increase sequentially, allowing the bread material to be quickly conveyed forward to the next conveyor belt, thereby separating and sorting the bread material. The first material distribution conveyor belt 72 is provided with a first material distribution plate 721, the second material distribution conveyor belt 73 is provided with a second material distribution plate 731, and the third material distribution conveyor belt 74 is provided with a third material distribution plate 741. The first material distribution plate 721, the second material distribution plate 731, and the third material distribution plate 741 are inclinedly arranged above the first material distribution conveyor belt 72, the second material distribution conveyor belt 73, and the third material distribution conveyor belt 74. The first material distribution plate 721, the second material distribution plate 731, and the third material distribution plate 741 are arranged in an approximately "S" shape.

[0050] When bread is conveyed from the feeding hopper to the first distribution conveyor belt, it is transported forward in multiple rows with a random order. Because the first distribution conveyor belt is inclined above the first distribution plate, the bread gradually moves towards the first distribution plate and is conveyed forward along its edge. Upon reaching the second distribution conveyor belt, where the rotational speed is greater than that of the first, the bread is conveyed forward rapidly. Similarly, the second distribution plate, also inclined above the second conveyor belt, blocks the forward-moving bread, causing it to move along its edge. Because the second conveyor belt's speed is greater than the first, and the bread is also closer to the first distribution plate, the closer the bread is to the first plate, the faster it moves forward. This results in a lower density of bread on the second distribution conveyor belt compared to the first. The principle of the subsequent third material distribution conveyor belt is the same. After passing through the three material distribution conveyor belts and three material distribution plates in sequence, the bread material is arranged from a scattered state into a single column that is transported forward along the edge of the third material distribution plate.

[0051] The number of bread pieces between the first and second dividing plates is greater than the number of bread pieces between the second and third dividing plates. The distance between the first and second dividing plates is greater than the distance between the second and third dividing plates. This ensures that the bread pieces do not obstruct the passage of bread pieces and allows the bread to be quickly conveyed forward along the edge of the next dividing plate.

[0052] Depending on the application scenario, if the straight-line distance in the factory is insufficient, an arc-shaped material distribution conveyor belt 75 may be included. This arc-shaped material distribution conveyor belt 75 is positioned behind the third material distribution conveyor belt 74, and a fourth material distribution plate 751 is provided on the arc-shaped material distribution conveyor belt 75. The fourth material distribution plate 751 is zigzagged with the third material distribution plate 741. The function and principle of the arc-shaped material distribution conveyor belt and the fourth material distribution plate are the same as those of the first, second, and third material distribution conveyor belts.

[0053] like Figure 1 As shown, the conveying assembly includes a main fixing frame 1, a conveyor belt 11, and support legs 12. The main fixing frame 1 is disposed on both sides of the conveyor belt 11, and the support legs 12 are disposed below the main fixing frame 1. The first connecting component and the second connecting component are mounted on the main fixing frame 1. The conveyor belt is driven forward by a motor. A feeding component is provided in front of the conveyor belt 11.

[0054] like Figure 1 As shown, the guiding assembly includes a guide bracket 21, a mounting frame 22, a connecting rod 23, and a guide plate 24. The guide bracket 21 is mounted on the main fixed frame 1, and the mounting frame 22 is provided on the guide bracket 21. The connecting rod 23 passes through the mounting frame 22 and is fixedly connected to the guide plate 24. The mounting frame is movably arranged inside the guide bracket. Moving the mounting frame left and right can synchronously move the guide plate's left and right position on the conveyor belt, assisting in adjusting the guide plate. The connecting rod is fixedly connected to the guide plate at the bottom. Rotating the connecting rod can adjust the tilt angle of the guide plate on the conveyor belt, so that one side of the guide plate corresponds to the material distribution plate of the feeding component, and the other side is located at the inlet of the flattening component. The bread material is conveyed along the edge of the guide plate into the flattening component.

[0055] like Figures 1 to 3 As shown, the flattening assembly includes a first connecting component, a second connecting component, and a pressing component 35. The first and second connecting components are mounted on the main fixing frame 1 of the conveying assembly. The first and second connecting components are connected to both ends of the pressing component 35. The pressing component 35 is disposed above the conveyor belt 11 and has a gap between it and the conveyor belt 11. The pressing component 35 is inclined downwards along the conveying direction of the conveyor belt 11.

[0056] like Figure 1 As shown, the first connecting assembly and the second connecting assembly 4 hold the extrusion assembly above the conveyor belt. The first and second connecting assemblies have identical structures, including a first bracket 31, a first adjusting rod 32, a second adjusting rod 33, and a third adjusting rod 34 disposed on the first bracket 31. The first bracket 31 is mounted on the main fixing frame 1.

[0057] like Figure 4As shown, the first bracket 31 is mounted on the conveyor belt 11, and the first bracket 31 has a first mounting hole 311, a second mounting hole 312, and a third mounting hole 313. The first adjusting rod 32, the second adjusting rod 33, and the third adjusting rod 34 pass through the first bracket 31 and are connected to the connecting bracket 354. The first adjusting rod 32 is threadedly connected to the first mounting hole 311 and contacts one side of the connecting bracket 354. The third adjusting rod 34 is threadedly connected to the third mounting hole 313 and contacts the other side of the connecting bracket 354. The second adjusting rod 33 is threadedly connected to the threaded sleeve 333, and the threaded sleeve 333 is engaged with the second mounting hole 312. The second adjusting rod 33 is fixedly connected to the connecting bracket 354 in the middle.

[0058] The first and third adjusting rods pass through the first bracket and contact the left and right sides of the connecting bracket, respectively. The second adjusting rod passes through the first bracket and is fixedly connected to the middle position of the connecting bracket. The second adjusting rod serves to fix the extrusion assembly. By adjusting the second adjusting rod, the height of both ends of the extrusion assembly on the conveyor belt can be adjusted, thereby adjusting the tilt angle of the entire flattening assembly, the allowable height of the bread material entering the flattening assembly, and the height of the adjusted bread. Figure 4 As shown, the second adjusting rod includes a rotating wheel 331, a screw 332, and a screw sleeve 333. The screw sleeve 333 is disposed within the second mounting hole 312 and engages with it. The diameter of the second mounting hole is larger than the outer diameter of the screw sleeve, and their shapes are adapted to each other, preventing the screw sleeve from rotating within the second mounting hole, but allowing it to tilt to the left or right at a certain angle. The second adjusting rod controls the height between the extrusion assembly and the conveyor belt. The first and third adjusting rods slightly adjust the left and right angles of the extrusion assembly, ensuring that the extrusion assembly and the conveyor belt surface remain parallel to each other.

[0059] The extrusion assembly includes: a first fixed frame 351, an extrusion conveyor belt 352, a second fixed frame 353, a connecting bracket 354, and a motor 355. The extrusion conveyor belt 352 is disposed between the first fixed frame 351 and the second fixed frame 353. The connecting bracket 354 is disposed at both ends of the extrusion assembly 35 and connected to the first connecting component and the second connecting component, respectively. The first connecting component and the second connecting component control the height of both ends of the extrusion assembly. The motor drives the extrusion conveyor belt to rotate. The extrusion conveyor belt 352 has the same transmission direction as the conveyor belt 11, and the bread is gradually extruded forward through the inclined extrusion conveyor belt to adjust the height of the bread. The coding component 5 is disposed behind the flattening component. Figure 3 As shown, the first fixing frame 351 and the second fixing frame 353 are arranged below the plane where the extrusion conveyor belt 352 is located, so that after the bread material enters the extrusion assembly, it is blocked inside the extrusion assembly and will not leak out from the left and right sides of the extrusion assembly.

[0060] The distance between the front of the extrusion assembly and the conveyor belt is greater than the maximum height of the bread, and the distance between the rear of the extrusion assembly and the conveyor belt is equal to the optimal inkjet printing height of the inkjet printing station.

[0061] The coding component is located behind the flattening component. The coding component uses existing technology, such as food printers. The inkjet nozzle of the coding component can be moved to directly above the discharge port of the flattening component to code the bread after the height is adjusted.

[0062] like Figure 1 As shown, the curing component is located behind the coding component. The curing component includes a blower 63, which is sequentially arranged along the conveyor belt 11. The curing component includes a second bracket 61, a mounting slot 62, and the blower 63. The second bracket 61 is mounted on the main fixing frame 1, the mounting slot 62 is located on the second bracket 61, and a ventilation hole is provided below the mounting slot 62. The blower 63 is located within the mounting slot 62. The curing component is positioned above the bread conveyor line after coding, blowing air onto each passing piece of bread to accelerate the curing of the coded text or patterns, ensuring that the coded shape is not affected in subsequent processes.

[0063] This invention also discloses a bread inkjet printing process, characterized by: including the aforementioned inkjet printing equipment, comprising the following steps:

[0064] S1: Adjust the distance between the flattening component and the conveyor belt according to the height of the bread being produced;

[0065] S11: Adjust the second adjusting rod 33 of the first connecting component so that the distance between the extrusion conveyor belt 352 and the conveyor belt 11 at the feed inlet of the flattening component is greater than the maximum height of the bread being produced;

[0066] S12: Adjust the second adjusting rod 33 of the second connecting component so that the distance between the extrusion conveyor belt 352 at the discharge port of the flattening component and the conveyor belt 11 is within the inkjet height range of the inkjet terminal of the inkjet component 5;

[0067] S2: Adjust the angle of the guide assembly so that the guide plate 24 of the guide assembly is located on the side in front of the feed inlet of the flattening assembly;

[0068] S3: Adjust the angles of the first adjusting rod 32 and the second adjusting rod 33 according to the ground inclination so that the extrusion assembly 35 is parallel to the surface of the conveyor belt 11.

[0069] S4: Adjust the tilt angle of the first dividing plate 721, the second dividing plate 731 and the third dividing plate 741 so that the first dividing plate 721, the second dividing plate 731 and the third dividing plate 741 are arranged in a near "S" shape; and the opening distance between the first dividing plate 721 and the second dividing plate 731 is greater than the opening distance between the second dividing plate 731 and the third dividing plate 741.

[0070] S5: Start the curing component, conveying component, feeding component, flattening component and inkjet printing component in sequence to perform inkjet printing operation.

[0071] This invention discloses a bread inkjet printing device and its inkjet printing process. The device uses an inkjet printer to print patterns or text onto the bread surface. Before printing, the scattered bread pieces are sorted and transported forward in a single line. The bread pieces are then gradually flattened sequentially until they are positioned at the optimal height for printing. After printing, a blower is used to solidify the printed pattern during subsequent transport.

[0072] The extrusion assembly is tilted and can be adjusted according to the product height. The length of the extrusion assembly is crucial. By controlling the length of the extrusion assembly, the bread after being extruded meets the coding requirements. At the same time, after coding, the bread that has been extruded can gradually spring back to its original height, so that the extrusion before coding does not affect the bread's internal fluffiness and texture.

[0073] The above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the present invention, and the patent protection scope of the present invention should be defined by the claims.

Claims

1. A bread inkjet printing process, characterized in that: It includes a conveying assembly, which includes a conveyor belt (11) and a main fixed frame (1), and a feeding assembly is provided in front of the conveyor belt (11); Above the conveyor belt (11) are arranged a guide assembly, a flattening assembly, a coding assembly and a curing assembly in sequence; The guiding assembly includes a guide plate (24) that allows material to enter the inlet in front of the flattening assembly; The flattening assembly includes: a first connecting assembly, a second connecting assembly (4), and an extrusion assembly (35). The first connecting assembly and the second connecting assembly are mounted on the conveying assembly. The first connecting assembly and the second connecting assembly are connected to both ends of the extrusion assembly (35). The extrusion assembly (35) is disposed above the conveyor belt (11) and has a gap between it and the conveyor belt (11). The extrusion assembly (35) is inclined from top to bottom along the conveying direction of the conveyor belt (11). The extrusion assembly includes: a first fixed frame (351), an extrusion conveyor belt (352), a second fixed frame (353), and a connecting bracket (354). The extrusion conveyor belt (352) is disposed between the first fixed frame (351) and the second fixed frame (353). The connecting bracket (354) is disposed at both ends of the extrusion assembly (35) and is respectively connected to the first connecting assembly and the second connecting assembly. The extrusion conveyor belt (352) has the same transmission direction as the conveyor belt (11); the inkjet printing assembly (5) is located behind the flattening assembly; The curing component is located behind the inkjet printer, and the curing component includes a blower (63), which is arranged sequentially along the conveyor belt (11) in the transmission direction. The first connecting component and the second connecting component have the same structure, including a first bracket (31), a first adjusting rod (32), a second adjusting rod (33) and a third adjusting rod (34) disposed on the first bracket (31); the first bracket (31) is mounted on the main fixing frame (1); The first bracket (31) is provided with a first mounting hole (311), a second mounting hole (312) and a third mounting hole (313); the first adjusting rod (32), the second adjusting rod (33) and the third adjusting rod (34) pass through the first bracket (31) and are connected to the connecting bracket (354). The first adjusting rod (32) is threaded to the first mounting hole (311) and contacts one side of the connecting bracket (354). The third adjusting rod (34) is threaded to the third mounting hole (313) and contacts the other side of the connecting bracket (354). The second adjusting rod (33) is threaded to the screw sleeve (333). The screw sleeve (333) is engaged with the second mounting hole (312). The second adjusting rod (33) is fixedly connected to the connecting bracket (354) in the middle. The guiding assembly includes a guide bracket (21), a mounting frame (22), a connecting rod (23), and a guide plate (24); the guide bracket (21) is mounted on the main fixing frame (1), the guide bracket (21) is provided with a mounting frame (22), and the connecting rod (23) passes through the mounting frame (22) and is fixedly connected to the guide plate (24); The feeding assembly includes a feeding hopper (71), and the outlet of the feeding hopper (71) is provided with a first material distribution conveyor belt (72), a second material distribution conveyor belt (73), and a third material distribution conveyor belt (74) in sequence; the first material distribution conveyor belt (72) is provided with a first material distribution plate (721), the second material distribution conveyor belt (73) is provided with a second material distribution plate (731), and the third material distribution conveyor belt (74) is provided with a third material distribution plate (741); It also includes the following steps: S1: Adjust the distance between the flattening component and the conveyor belt according to the height of the bread being produced; S11: Adjust the second adjusting rod (33) of the first connecting component so that the distance between the extrusion conveyor belt (352) at the feed inlet of the flattening component and the conveyor belt (11) is greater than the maximum height of the bread to be produced; S12: Adjust the second adjusting rod (33) of the second connecting component so that the distance between the extrusion conveyor belt (352) at the outlet of the flattening component and the conveyor belt (11) is within the inkjet height range of the inkjet printing terminal of the inkjet printing component (5); S2: Adjust the angle of the guide assembly so that the guide plate (24) of the guide assembly is located on the side in front of the feed inlet of the flattening assembly; S3: Adjust the angles of the first adjusting rod (32) and the second adjusting rod (33) according to the ground inclination so that the extrusion assembly (35) is set parallel to the surface of the conveyor belt (11); S4: Adjust the tilt angle of the first dividing plate (721), the second dividing plate (731) and the third dividing plate (741) so that the first dividing plate (721), the second dividing plate (731) and the third dividing plate (741) are arranged in a near "S" shape; and the opening distance between the first dividing plate (721) and the second dividing plate (731) is greater than the opening distance between the second dividing plate (731) and the third dividing plate (741); S5: Start the curing component, conveying component, feeding component, flattening component and inkjet printing component in sequence to perform inkjet printing operation.

2. The bread inkjet printing process as described in claim 1, characterized in that: The conveying assembly includes legs (12), the main fixing frame (1) is disposed on both sides of the conveyor belt (11), the legs (12) are disposed below the main fixing frame (1), and the first connecting assembly and the second connecting assembly are mounted on the main fixing frame (1).

3. The bread inkjet printing process as described in claim 1, characterized in that: The transmission speeds of the first material distribution conveyor belt (72), the second material distribution conveyor belt (73), and the third material distribution conveyor belt (74) increase sequentially; the first material distribution plate (721), the second material distribution plate (731), and the third material distribution plate (741) are inclinedly arranged above the first material distribution conveyor belt (72), the second material distribution conveyor belt (73), and the third material distribution conveyor belt (74).

4. The bread inkjet printing process as described in claim 1, characterized in that: The first dividing plate (721), the second dividing plate (731) and the third dividing plate (741) are arranged in an approximately "S" shape.

5. The bread inkjet printing process as described in claim 1, characterized in that: It also includes an arc-shaped material distribution conveyor belt (75), which is located behind the third material distribution conveyor belt (74). A fourth material distribution plate (751) is provided on the arc-shaped material distribution conveyor belt (75), and the fourth material distribution plate (751) is zigzag-shaped with the third material distribution plate (741).

6. The bread inkjet printing process as described in claim 1, characterized in that: The first fixing frame (351) and the second fixing frame (353) are arranged below the plane where the extrusion conveyor belt (352) is located.

7. The bread inkjet printing process as described in claim 1, characterized in that: The curing assembly includes a second bracket (61), a mounting slot (62), and a blower (63). The second bracket (61) is mounted on the main fixing frame (1), the mounting slot (62) is disposed on the second bracket (61), and a ventilation hole is provided below the mounting slot (62). The blower (63) is disposed in the mounting slot (62).

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