A raw material conveying device for food industrial processing

Abstract

This invention relates to the field of food raw material conveying technology, and proposes a raw material conveying device for industrial food processing. The device includes a frame, a protective box fixedly connected to the top of the frame, a conveyor belt for conveying raw materials installed inside the protective box, an ultraviolet sterilization lamp fixedly connected to one end of the inner side of the protective box, and a drying mechanism located at the other end of the inner side of the protective box. The drying mechanism includes an air guide box fixedly connected to the top of the protective box, an air duct fixedly connected to the top of the air guide box, a blower impeller rotatably connected to the inner side of the air duct, a drive assembly located on the outer side of the air guide box, a heating box fixedly connected to the inlet end of the air duct, an electric heating tube fixedly connected to the inner side of the heating box, several air inlets on the top of the heating box, an air guide plate rotatably connected to the inner side of the air guide box, and a linkage assembly located on the outer side of the air guide box. This invention improves the hygiene level of the food raw material conveying process by integrating sterilization, uniform drying, and automatic cleaning functions.

Description

Technical Field

[0001] This invention relates to the field of food raw material conveying technology, specifically to a raw material conveying device for industrial food processing. Background Technology

[0002] In the industrial processing of food, the transportation of raw materials is a fundamental and crucial step. To ensure the safety and quality of the final product, raw materials typically require basic surface treatment before entering the next processing stage, such as sterilization and removal of excess moisture. Traditional processing methods often treat transportation, sterilization, and drying as independent processes, completed between different equipment or workstations. This results in long production lines, large floor space requirements, and may increase the risk of raw material contamination due to multiple transfers.

[0003] To address the aforementioned issues, several integrated solutions have emerged in the prior art. For example, patent document CN216493035U discloses a hot air circulating elastic correction tunnel oven for the production of cereal crisps. This oven, with its main body, circulating fan, and air duct mounted on a base, utilizes a guide vane to ensure hot air is evenly blown downwards to dry the cereal crisps. This structure improves hot air distribution to some extent by fixing and guiding the airflow direction through the guide vane.

[0004] However, existing technologies still have certain technical defects in the raw material conveying process: First, many existing raw material conveying devices only have simple conveying functions, and sterilization and drying need to be completed by subsequent independent equipment. This segmented processing method prolongs the production cycle, increases equipment investment and energy consumption, and there is a risk of secondary contamination when raw materials are transferred between processes; Second, the fixed air guide plate structure shown in CN216493035U, although it can guide the direction of hot air, has a fixed air outlet angle and a limited range of direct hot air blowing, which still easily leads to uneven heating of raw materials on the conveyor belt. Raw materials located directly below the air nozzle may be damaged in quality due to overheating (such as local dehydration and discoloration), while raw materials in the edge areas may be under-dried, affecting the overall processing quality and the stability of subsequent processes.

[0005] In view of this, the present invention proposes a raw material conveying device for industrial food processing. Summary of the Invention

[0006] This invention proposes a raw material conveying device for industrial food processing, which solves the problem of uneven heating of raw materials during drying in the prior art.

[0007] The technical solution of the present invention is as follows: A raw material conveying device for industrial food processing includes a frame, a protective box fixedly connected to the top of the frame, a conveyor belt for conveying raw materials installed inside the protective box, an ultraviolet sterilization lamp fixedly connected to one end of the inner side of the protective box, and a drying mechanism provided at the other end of the inner side of the protective box. The drying mechanism includes an air guide box fixedly connected to the top of the protective box, an air duct fixedly connected to the top of the air guide box, a blower impeller rotatably connected to the inner side of the air duct, a drive assembly for driving the blower impeller to rotate on the outer side of the air guide box, a heating box fixedly connected to the inlet end of the air duct, an electric heating tube fixedly connected to the inner side of the heating box, a plurality of arrayed air inlets opened on the top of the heating box, a plurality of air guide plates equidistantly distributed along the length direction rotatably connected to the inner side of the air guide box, and a linkage assembly for driving the air guide plates to reciprocate by cooperating with the activation of the drive assembly on the outer side of the air guide box.

[0008] Preferably, the drive assembly includes a first bevel gear fixedly connected to the blower impeller on the same axis, a rotating shaft rotatably connected to the inner side of the heating box, a second bevel gear meshing with the first bevel gear fixedly connected to one end of the rotating shaft, a first pulley fixedly connected to the other end of the rotating shaft, a motor fixedly installed on the outer side of the air guide box, a second pulley fixedly connected to the output shaft of the motor, and the second pulley and the first pulley being connected by belt drive.

[0009] Preferably, the ratio of the number of teeth of the first bevel gear to the number of teeth of the second bevel gear is 1:6.

[0010] Preferably, the linkage component includes a plurality of transmission gears corresponding one-to-one with the air guide plate. The plurality of transmission gears are coaxially and fixedly connected to the corresponding air guide plate. A fixing rod is fixedly connected to the outside of the air guide box. A toothed plate is slidably connected to the fixing rod. The plurality of transmission gears mesh with the toothed plate. A transmission component is provided on the top of the toothed plate to drive the toothed plate to slide back and forth by cooperating with the start of the motor.

[0011] Preferably, the toothed plate has a guide groove along its length, and the fixing rod is clearance-fitted with the guide groove.

[0012] Preferably, the transmission component includes a fixed frame fixedly connected to the middle of the gear plate, two internal racks symmetrically arranged along the center line of the fixed frame are fixedly connected to the inner side of the fixed frame, an incomplete gear is rotatably connected to the outer side of the air guide box, the incomplete gear alternately meshes with the two internal racks, a third pulley is coaxially fixedly connected to the incomplete gear, and a fourth pulley is fixedly connected to the output shaft of the motor, the fourth pulley and the third pulley are connected by belt drive.

[0013] Preferably, a wiping mechanism is provided at one end of the conveyor belt. The wiping mechanism includes a fixed plate fixedly connected to the end of the frame. A slide rod is slidably connected to the fixed plate and passes through the fixed plate. A mounting plate is fixedly connected to one end of the slide rod. A wiping cotton plate that abuts against the outer wall of the conveyor belt is fixedly connected to one side of the mounting plate. A stop block is fixedly connected to the other end of the slide rod.

[0014] Preferably, the wiping mechanism further includes a spring sleeved on the slide rod, with both ends of the spring abutting against the fixing plate and the mounting plate, respectively.

[0015] The working principle and beneficial effects of this invention are as follows: 1. The air guide plate is driven by a linkage component to oscillate back and forth, dispersing the concentrated hot air and forming a sweeping airflow, which evenly blows over the entire surface of the raw material passing below. This effectively solves the problem of uneven heating of raw materials caused by fixed air nozzles, avoids local over-drying or under-drying, and significantly improves the uniformity of drying and the stability of overall processing quality.

[0016] 2. The drive assembly employs a combination of motor, belt, and bevel gear transmission. The first and second bevel gears have a 1:6 gear ratio, achieving speed reduction and torque increase. This design successfully converts the horizontal rotational motion of the motor shaft into the vertical rotational motion required by the blower impeller. The power transmission path is rational, the structure is compact, and it is suitable for industrial environments with limited installation space.

[0017] 3. The linkage component cleverly utilizes the same motor as a power source. Through the alternating meshing of the incomplete gear and the two internal racks in the fixed frame, the continuous rotational motion of the motor is automatically converted into the stable and regular linear reciprocating motion of the rack, thereby driving all the air guide plates to swing synchronously. This process does not require additional control circuits or dedicated reciprocating motors. The mechanical structure itself realizes the conversion of motion mode, which is ingeniously designed and highly reliable. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of a raw material conveying device for industrial food processing according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a raw material conveying device for industrial food processing according to the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the drying mechanism of the present invention; Figure 4 This is a schematic diagram of the structure of the driving component of the present invention; Figure 5This is a schematic diagram of the linkage component of the present invention; Figure 6 This is a schematic diagram of the transmission component of the present invention; Figure 7 This is a schematic diagram of the wiping mechanism of the present invention.

[0020] In the diagram: 1. Frame; 2. Conveyor belt; 3. Protective box; 4. Ultraviolet sterilization lamp; 5. Drying mechanism; 51. Air guide box; 52. Air duct; 53. Heating box; 54. Blower impeller; 55. Drive assembly; 551. First bevel gear; 552. Rotating shaft; 553. Second bevel gear; 554. First pulley; 555. Motor; 556. Second pulley; 56. Heating element; 57. Air inlet; 58. Air guide plate 59. Linkage assembly; 591. Transmission gear; 592. Fixed rod; 593. Gear plate; 594. Guide groove; 595. Transmission component; 5951. Fixed frame; 5952. Internal rack; 5953. Incomplete gear; 5954. Third pulley; 5955. Fourth pulley; 6. Wiping mechanism; 61. Fixed plate; 62. Slide rod; 63. Mounting plate; 64. Wiping cotton board; 65. Spring; 66. Stop block. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1 to 7 As shown, this embodiment proposes a raw material conveying device for industrial food processing, including a frame 1. A protective box 3 is fixedly connected to the top of the frame 1. A conveyor belt 2 for conveying raw materials is installed inside the protective box 3. An ultraviolet sterilization lamp 4 is fixedly connected to one end of the inner side of the protective box 3, and a drying mechanism 5 is provided at the other end of the inner side of the protective box 3. The drying mechanism 5 includes an air guide box 51 fixedly connected to the top of the protective box 3. An air duct 52 is fixedly connected to the top of the air guide box 51, and a blower is rotatably connected to the inner side of the air duct 52. The impeller 54 and the outer side of the air guide box 51 are provided with a drive assembly 55 for driving the impeller 54 to rotate. The inlet end of the air duct 52 is fixedly connected to a heating box 53. The inner side of the heating box 53 is fixedly connected to an electric heating tube 56. The top of the heating box 53 is provided with several arrayed air inlets 57. The inner side of the air guide box 51 is rotatably connected to several air guide plates 58 that are equidistantly distributed along the length direction. The outer side of the air guide box 51 is provided with a linkage assembly 59 that drives the air guide plates 58 to swing back and forth by cooperating with the start of the drive assembly 55.

[0023] In this embodiment, the food raw materials are placed on the conveyor belt 2, which is then started and transported through the protective box 3. During the transport process, the raw materials first pass through the irradiation area of ​​the ultraviolet sterilization lamp 4 for surface sterilization. Subsequently, the raw materials enter the working area of ​​the drying mechanism 5. At this time, the drying mechanism 5 is started, and its internal electric heating tube 56 heats the air. At the same time, the drive component 55 drives the blower impeller 54 to rotate, blowing hot air from the air duct 52 into the air guide box 51. Driven by the linkage component 59, multiple air guide plates 58 in the air guide box 51 reciprocate, dispersing the concentrated hot air and forming a sweeping airflow that evenly blows onto the surface of the raw material passing below, achieving drying. The reciprocating swing of the air guide plates 58 ensures that the hot air evenly sweeps across the entire width of the raw material on the conveyor belt 2, avoiding the problems of local over-drying or uneven drying that may be caused by fixed air nozzles, significantly improving the uniformity of drying quality. The sweeping airflow expands the area of ​​raw material covered by a single hot air flow and makes heat exchange more complete, reducing heat energy waste and potentially saving energy consumption while achieving the same drying effect.

[0024] In a further preferred embodiment of the present invention, the drive assembly 55 includes a first bevel gear 551 coaxially and fixedly connected to the blower impeller 54, a rotating shaft 552 rotatably connected to the inner side of the heating box 53, a second bevel gear 553 meshing with the first bevel gear 551 fixedly connected to one end of the rotating shaft 552, the gear ratio of the first bevel gear 551 to the second bevel gear 553 being 1:6; a first pulley 554 fixedly connected to the other end of the rotating shaft 552, a motor 555 fixedly mounted on the outer side of the air guide box 51, a second pulley 556 fixedly connected to the output shaft of the motor 555, and the second pulley 556 and the first pulley 554 being connected by belt drive.

[0025] In this embodiment, the motor 555 starts, and its output shaft directly drives the second pulley 556 to rotate. The second pulley 556 transmits power to the first pulley 554 via a belt, thereby driving the rotating shaft 552, which is coaxial with the first pulley 554, to rotate. A second bevel gear 553 is installed at one end of the rotating shaft 552, and the second bevel gear 553 meshes with the first bevel gear 551, which is fixed together with the blower impeller 54. Through this pair of bevel gears, the power direction is changed from the horizontal axis to the vertical axis, ultimately driving the blower impeller 54 to rotate within the vertical air duct 52. The gear ratio of the first bevel gear 551 to the second bevel gear 553 is set to 1:6, meaning that for every 6 rotations of the second bevel gear 553, the first bevel gear 551 rotates only once. Through the combination of the belt and the bevel gears, the horizontal rotational power of the motor 555 is successfully converted into the vertical rotational power required by the blower impeller 54. The structure is compact and suitable for installation environments with limited space.

[0026] In a further preferred embodiment of the present invention, the linkage component 59 includes a plurality of transmission gears 591 corresponding one-to-one with the air guide plate 58. The plurality of transmission gears 591 are coaxially and fixedly connected to the corresponding air guide plate 58. A fixing rod 592 is fixedly connected to the outside of the air guide box 51. A toothed plate 593 is slidably connected to the fixing rod 592. A guide groove 594 is formed on the toothed plate 593 along the length direction. The fixing rod 592 and the guide groove 594 are clearance-fitted. The plurality of transmission gears 591 mesh with the toothed plate 593. The top of the toothed plate 593 is provided with a transmission mechanism that drives the toothed plate 593 to reciprocate by starting the motor 555. The transmission component 595 includes a fixed frame 5951 fixedly connected to the middle of the toothed plate 593. Two internal racks 5952 symmetrically arranged along the center line of the fixed frame 5951 are fixedly connected to the inner side of the fixed frame 5951. An incomplete gear 5953 is rotatably connected to the outer side of the air guide box 51. The incomplete gear 5953 alternately meshes with the two internal racks 5952. A third pulley 5954 is fixedly connected to the incomplete gear 5953 on the same axis. A fourth pulley 5955 is also fixedly connected to the output shaft of the motor 555. The fourth pulley 5955 and the third pulley 5954 are connected by belt drive.

[0027] In this embodiment, the power for the linkage component 59 also originates from the motor 555. The fourth pulley 5955 on the output shaft of the motor 555 transmits power to the third pulley 5954 via another belt, thereby driving the incomplete gear 5953, which is coaxial with the third pulley 5954, to rotate. The incomplete gear 5953 has teeth only on a portion of its circumference. When the toothed portion rotates to mesh with the inner rack 5952 above the fixed frame 5951, it pushes the toothed plate 593 to slide in one direction. When the toothed portion rotates away from the upper inner rack 5952 and then meshes with the lower inner rack 5952, it pulls the toothed plate 593 to slide in the opposite direction. The toothed plate 593 engages with the fixed rod 592 via its guide groove 594, achieving stable linear reciprocating motion. The toothed plate 593 meshes with the transmission gears 591 corresponding to all the air guide plates 58. Therefore, the reciprocating linear motion of the toothed plate 593 is converted into the synchronous reciprocating rotational oscillation of all the air guide plates 58 around their own axis through the transmission gear 591. This design utilizes the ingenious combination of a single incomplete gear 5953 and a double internal rack 5952 to automatically convert the continuous rotational motion of the motor 555 into the stable and regular linear reciprocating motion of the rack 593, thereby driving all the air guide plates 58 to swing synchronously. No additional control circuit or reciprocating motor is required. The structure is ingenious and highly reliable.

[0028] In a further preferred embodiment of the present invention, a wiping mechanism 6 is provided at one end of the conveyor belt 2. The wiping mechanism 6 includes a fixed plate 61 fixedly connected to the end of the frame 1. A slide rod 62 is slidably connected to the fixed plate 61 and passes through the fixed plate 61. A mounting plate 63 is fixedly connected to one end of the slide rod 62. A wiping cotton plate 64 that abuts against the outer wall of the conveyor belt 2 is fixedly connected to one side of the mounting plate 63. A stop block 66 is fixedly connected to the other end of the slide rod 62. A spring 65 is sleeved on the slide rod 62. The two ends of the spring 65 abut against the fixed plate 61 and the mounting plate 63, respectively.

[0029] In this embodiment, the wiping mechanism 6 is installed at the return end of the conveyor belt 2 (usually below or on the non-load-bearing surface). The wiping pad 64 is slidably connected to the fixed plate 61 via the mounting plate 63 and the slide bar 62. A spring 65 is fitted onto the slide bar 62, with one end abutting against the fixed plate 61 and the other end abutting against the mounting plate 63. The spring 65 is in a compressed state, thereby continuously applying a thrust to the mounting plate 63. This thrust is transmitted to the wiping pad 64, causing it to fit tightly against the surface of the conveyor belt 2. When the conveyor belt 2 is running continuously, its surface rubs against the stationary wiping pad 64, and the raw material residue, moisture, or dust adhering to the conveyor belt 2 is scraped and absorbed by the wiping pad 64. The stop block 66 is used to limit the maximum stroke of the slide bar 62 and the mounting plate 63 to prevent them from accidentally coming off. During the operation of the device, the surface of the conveyor belt 2 can be automatically and continuously cleaned without manual intervention, preventing the residue of the previous batch of raw materials from contaminating the next batch of raw materials, meeting the hygiene requirements of food processing, and reducing the cleaning time required during production breaks.

[0030] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A raw material conveying device for industrial food processing, comprising a frame (1), wherein a protective box (3) is fixedly connected to the top of the frame (1), and a conveyor belt (2) for conveying raw materials is installed on the inner side of the protective box (3), characterized in that, An ultraviolet sterilization lamp (4) is fixedly connected to one end of the inner side of the protective box (3), and a drying mechanism (5) is provided at the other end of the inner side of the protective box (3). The drying mechanism (5) includes an air guide box (51) fixedly connected to the top of the protective box (3). An air duct (52) is fixedly connected to the top of the air guide box (51). A blower impeller (54) is rotatably connected to the inner side of the air duct (52). A drive assembly (55) for driving the blower impeller (54) to rotate is provided on the outer side of the air guide box (51). The inlet end of the air duct (52) is fixedly connected to a heating box (53), and the inner side of the heating box (53) is fixedly connected to an electric heating tube (56). The top of the heating box (53) is provided with several arrayed air inlets (57). The inner side of the air guide box (51) is rotatably connected to several air guide plates (58) distributed at equal intervals along the length direction. The outer side of the air guide box (51) is provided with a linkage component (59) that drives the air guide plates (58) to swing back and forth by cooperating with the start of the drive component (55).

2. The raw material conveying device for industrial food processing according to claim 1, characterized in that, The drive assembly (55) includes a first bevel gear (551) coaxially fixedly connected to the blower impeller (54), a rotating shaft (552) rotatably connected to the inner side of the heating box (53), a second bevel gear (553) meshing with the first bevel gear (551) fixedly connected to one end of the rotating shaft (552), a first pulley (554) fixedly connected to the other end of the rotating shaft (552), a motor (555) fixedly installed on the outer side of the air guide box (51), a second pulley (556) fixedly connected to the output shaft of the motor (555), and the second pulley (556) and the first pulley (554) are connected by belt drive.

3. The raw material conveying device for industrial food processing according to claim 2, characterized in that, The ratio of the number of teeth of the first bevel gear (551) to the number of teeth of the second bevel gear (553) is 1:

6.

4. The raw material conveying device for industrial food processing according to claim 2, characterized in that, The linkage component (59) includes several transmission gears (591) that correspond one-to-one with the air guide plate (58). The several transmission gears (591) are coaxially fixedly connected to the corresponding air guide plate (58). A fixed rod (592) is fixedly connected to the outside of the air guide box (51). A toothed plate (593) is slidably connected to the fixed rod (592). The several transmission gears (591) mesh with the toothed plate (593). A transmission component (595) is provided on the top of the toothed plate (593) to drive the toothed plate (593) to slide back and forth by cooperating with the start of the motor (555).

5. A raw material conveying device for industrial food processing according to claim 4, characterized in that, The toothed plate (593) has a guide groove (594) along its length, and the fixing rod (592) is in clearance fit with the guide groove (594).

6. A raw material conveying device for industrial food processing according to claim 5, characterized in that, The transmission component (595) includes a fixed frame (5951) fixedly connected to the middle of the toothed plate (593). Two internal racks (5952) symmetrically arranged along the center line of the fixed frame (5951) are fixedly connected to the inner side of the fixed frame (5951). An incomplete gear (5953) is rotatably connected to the outer side of the air guide box (51). The incomplete gear (5953) alternately meshes with the two internal racks (5952). A third pulley (5954) is coaxially fixedly connected to the incomplete gear (5953). A fourth pulley (5955) is also fixedly connected to the output shaft of the motor (555). The fourth pulley (5955) and the third pulley (5954) are connected by belt drive.

7. The raw material conveying device for industrial food processing according to claim 1, characterized in that, One end of the conveyor belt (2) is provided with a wiping mechanism (6). The wiping mechanism (6) includes a fixed plate (61) fixedly connected to the end of the frame (1). A slide rod (62) that passes through the fixed plate (61) is slidably connected to the fixed plate (61). One end of the slide rod (62) is fixedly connected to a mounting plate (63). One side of the mounting plate (63) is fixedly connected to a wiping cotton board (64) that abuts against the outer wall of the conveyor belt (2). The other end of the slide rod (62) is fixedly connected to a stop block (66).

8. A raw material conveying device for industrial food processing according to claim 7, characterized in that, The wiping mechanism (6) also includes a spring (65) sleeved on the slide bar (62), and the two ends of the spring (65) abut against the fixing plate (61) and the mounting plate (63) respectively.

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