Conveying device for dehydrated garlic production

Abstract

The invention relates to the technical field of garlic slice conveying, and provides a conveying device for dehydrated garlic production, which is used for conveying garlic slices to pass through a drying machine and comprises a stock bin located on one side of the drying machine and used for containing the garlic slices; the negative-pressure belt conveying device is located between the dryer and the stock bin, one end of the negative-pressure belt conveying device is located in the stock bin, and the other end of the negative-pressure belt conveying device is connected with the dryer; the brush roller is rotationally arranged above the negative pressure belt type conveying device, a plurality of densely-distributed bristles are arranged on the surface of the brush roller, and the brush roller can drive the bristles to rotate to abut against the surface of a conveying belt of the negative pressure belt type conveying device. By means of negative pressure adsorption of the negative pressure belt type conveying device and the sweeping function of bristles on the brush rollers, the garlic slices are flatly conveyed on the negative pressure belt type conveying device, and the technical problem that in the prior art, due to the fact that the accumulation mode of the garlic slices entering the multiple layers of mesh belts in the mesh belt dryer is uncertain, heat of the dryer is wasted or drying is not thorough is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of garlic slice conveying, in particular to a conveying device for dehydrated garlic production. BACKGROUND

[0002] Dehydrated garlic is a processed food that removes water through physical methods, retains the pungent flavor and nutritional ingredients (such as allicin, sulfide) of garlic, and is widely used in food seasoning, health products, feed additives and other fields. The production of dehydrated garlic needs to go through the steps of cleaning, peeling, slicing, drying, packaging, etc. The commonly used drying equipment is a belt dryer, which is a box structure as a whole, has a moisture outlet at the top, and has a multi-layer mesh belt conveying device inside. The multi-layer mesh belt conveying device transports the garlic slices layer by layer downward, and the hot air is blown from below the mesh belt by a blower to dry the garlic slices on the mesh belt.

[0003] In the prior art, in order to prevent the garlic slices from piling up on the mesh belt and making it difficult for the garlic slices to be dried by the hot air, a pre-conveying section is added in front of the mesh belt conveyor. The pre-conveying section can convey the garlic slices in the garlic slice bin to the top layer of the mesh belt conveyor. The pre-conveying section includes a belt conveyor and a rotating scraper. The rotating scraper is spaced apart from the belt of the belt conveyor. The garlic slices within the space between the rotating scraper and the belt can pass through the space. If the height of the garlic slices on the belt is greater than the space between the rotating scraper and the belt, the excess part will be pushed backward from the belt by the rotating scraper, ensuring that the height of the garlic slices on the belt is always maintained at a certain height. However, in actual production, due to the different cutting thicknesses of the garlic slices and the uncertainty of the stacking form of a large number of garlic slices, which are either stacked, or inserted between multiple garlic slices in an inclined or vertical manner, this leads to the problem of uneven drying in the dryer, resulting in heat waste or incomplete drying. Due to the uncertainty of the stacking of the garlic slices, it is not possible to ensure the flatness of the garlic slices by adjusting the rotating scraper to maintain a fixed distance from the belt. SUMMARY

[0004] To overcome the above-mentioned defects, the embodiments of the present application provide a conveying device for dehydrated garlic production, which solves the technical problem of heat waste or incomplete drying of the dryer due to the uncertainty of the stacking form of the garlic slices on the multi-layer mesh belt in the prior art.

[0005] According to one aspect, at least one embodiment of the present application provides a conveying device for dehydrated garlic production for conveying garlic slices through a dryer, comprising: a bin located on one side of the dryer, the bin being used to hold garlic slices; A negative pressure belt conveyor is arranged in the silo and connected to the drying machine, so that the negative pressure belt conveyor is used to suck the garlic slices in the silo and convey the garlic slices to the drying machine. A brush roller is rotatably arranged above the negative pressure belt conveyor and located at the end of the negative pressure belt conveyor close to the silo. The brush roller has a plurality of densely arranged bristles on the surface. The brush roller can rotate the bristles and abut against the surface of the conveying belt of the negative pressure belt conveyor, so that the bristles can scrape off the garlic slices not sucked by the negative pressure on the negative pressure belt conveyor.

[0006] For example, the conveying device for dehydrated garlic production provided by at least one embodiment of the present application further comprises a mesh belt conveyor. The mesh belt conveyor comprises a plurality of layers of drying mesh belts arranged in the drying machine in a staggered manner. The drying mesh belt located at the lower layer is used to receive the garlic slices on the drying mesh belt located at the upper layer. The uppermost layer of the drying mesh belt is connected to the discharge end of the negative pressure belt conveyor through a connecting assembly. The connecting assembly is used to sequentially send the garlic slices on the negative pressure belt conveyor to the uppermost layer of the drying mesh belt.

[0007] For example, the conveying device for dehydrated garlic production provided by at least one embodiment of the present application further comprises a mesh belt conveyor. The mesh belt conveyor comprises a plurality of layers of drying mesh belts arranged in the drying machine in a staggered manner. The drying mesh belt located at the lower layer is used to receive the garlic slices on the drying mesh belt located at the upper layer. The uppermost layer of the drying mesh belt is connected to the discharge end of the negative pressure belt conveyor through a connecting assembly. The connecting assembly is used to sequentially send the garlic slices on the negative pressure belt conveyor to the uppermost layer of the drying mesh belt. The connecting plate is abutted against the outer lower side of the discharge end of the conveying belt at one end and extends to the uppermost layer of the drying mesh belt at the other end. The connecting plate can scrape off the garlic slices adhered to the conveying belt. The mounting frame is arranged above the connecting plate. A plurality of conveying rollers are rotatably arranged on the mounting frame. The conveying rollers and the connecting plate form a conveying space for the garlic slices.

[0008] For example, the conveying device for dehydrated garlic production provided by at least one embodiment of the present application further comprises a mesh belt conveyor. The mesh belt conveyor comprises a plurality of layers of drying mesh belts arranged in the drying machine in a staggered manner. The drying mesh belt located at the lower layer is used to receive the garlic slices on the drying mesh belt located at the upper layer. The uppermost layer of the drying mesh belt is connected to the discharge end of the negative pressure belt conveyor through a connecting assembly. The connecting assembly is used to sequentially send the garlic slices on the negative pressure belt conveyor to the uppermost layer of the drying mesh belt.

[0009] For example, the conveying device for dehydrated garlic production provided by at least one embodiment of the present application further comprises a mesh belt conveyor. The mesh belt conveyor comprises a plurality of layers of drying mesh belts arranged in the drying machine in a staggered manner. The drying mesh belt located at the lower layer is used to receive the garlic slices on the drying mesh belt located at the upper layer. The uppermost layer of the drying mesh belt is connected to the discharge end of the negative pressure belt conveyor through a connecting assembly. The connecting assembly is used to sequentially send the garlic slices on the negative pressure belt conveyor to the uppermost layer of the drying mesh belt. The cleaning roller is rotatably arranged below the negative pressure belt conveyor. The cleaning roller has a plurality of bristles on the surface. The cleaning roller can rotate the bristles and clean the negative pressure holes on the conveying belt.

[0010] For example, the conveying device for dehydrated garlic production provided by at least one embodiment of the present application further comprises a mesh belt conveyor. The mesh belt conveyor comprises a plurality of layers of drying mesh belts arranged in the drying machine in a staggered manner. The drying mesh belt located at the lower layer is used to receive the garlic slices on the drying mesh belt located at the upper layer. The uppermost layer of the drying mesh belt is connected to the discharge end of the negative pressure belt conveyor through a connecting assembly. The connecting assembly is used to sequentially send the garlic slices on the negative pressure belt conveyor to the uppermost layer of the drying mesh belt. The baffle is arranged in the drying machine, and the baffle is located at the feeding end of the drying mesh belt. The baffle has a limiting section and a guide transition section connected to the lower edge of the limiting section. The limiting section is half-covered outside the feeding end of the drying mesh belt on the upper layer. The inner wall of the baffle has a limiting space with the outer wall of the drying mesh belt on the upper layer. The limiting space is used for guiding the garlic slices to move along the discharge end wall of the drying mesh belt. The lower end of the guide transition section can abut against the drying mesh belt on the lower layer to guide the garlic slices to turn over and be fed onto the drying mesh belt on the lower layer.

[0011] For example, the auxiliary turnover assembly of the conveying device for dehydrated garlic production further comprises: The guide roller is rotatably arranged inside the guide transition section, and the guide roller forms a guide space with the guide transition section. The guide roller is used for limiting the garlic slices in the guide space to move along the inner wall of the guide transition section and turn over to be fed onto the drying mesh belt on the lower layer.

[0012] For example, the auxiliary turnover assembly of the conveying device for dehydrated garlic production is movably arranged in the drying machine. The auxiliary turnover assembly can be close to or away from the drying mesh belt to adjust the size of the limiting space.

[0013] For example, the auxiliary turnover assembly of the conveying device for dehydrated garlic production further comprises: The support frame is arranged in the drying machine and is used for mounting the mesh belt conveying device. The mounting seat is arranged on the support frame, and the mounting seat corresponds to the discharge end of the drying mesh belt. The auxiliary turnover assembly is slidably arranged on each mounting seat. The mounting seat has inclined sliding grooves on both sides. The baffle is connected with a sliding frame. The sliding frame is provided with a connecting rod on both sides. The connecting rod is slidably connected in the sliding groove to adjust the size of the limiting space.

[0014] For example, the conveying device for dehydrated garlic production further comprises: The moving plate is horizontally movably arranged on the mounting seat. The moving plate has a lifting groove extending in the up-down direction. The sliding frame is slidably arranged in the lifting groove. The sliding groove can guide the baffle to move to the side away from the drying mesh belt under the translation of the moving plate. The lead screw is arranged through the mounting seat and is threadedly connected with the mounting seat. One end of the lead screw is rotatably arranged on the moving plate, and the other end is connected with a rotary driving member. The lead screw can drive the moving plate to move under the action of the rotary driving member.

[0015] The beneficial effects of the present application are: In the present application, the garlic slices are almost in a flat manner into the conveying belt by the negative pressure from the negative pressure belt conveying device, then the brush roll on the conveying belt rotates, the bristles and the garlic slices on the conveying belt generate interaction force, the garlic slices not adsorbed or partially adsorbed by the negative pressure and partially on other garlic slices will be returned to the hopper under the action of the bristles, so as to ensure that the garlic slices on the conveying belt are in a flat state. Then the negative pressure belt conveying device sends the garlic slices into the dryer. Since the garlic slices are in a flat state, the drying speed is faster, and the operator can select the hot gas supply efficiency or the drying time according to the approximate interval of the thickness of the garlic slices, so as to avoid the output of excess hot gas when the garlic slices are loose, which causes the loss of heat, or the incomplete drying caused by the over-thick accumulation of the garlic slices. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present application. For those skilled in the art, other drawings can be obtained according to the contents of the example embodiments of the present application and the drawings without paying creative labor.

[0017] Figure 1 It is an external overall structure schematic diagram of the present application; Figure 2 It is a structure schematic diagram of the present application after removing part of the shell; Figure 3 It is Figure 2 It is an enlarged structure schematic diagram of A in the figure; Figure 4 It is a side view structure schematic diagram of the present application after removing the shell and the hopper; Figure 5 It is Figure 4 It is an enlarged structure schematic diagram of B in the figure; Figure 6 It is a structure schematic diagram of the net belt conveying device and the auxiliary turnover assembly of the present application; Figure 7 It is Figure 6 It is an enlarged structure schematic diagram of C in the figure; Figure 8 It is a structure schematic diagram of the auxiliary turnover assembly; In the figure: 100, dryer; 200, hopper; 300, negative pressure belt conveying device; 400, brush roller; 500, mesh belt conveying device; 510, drying mesh belt; 600, connecting assembly; 610, connecting plate; 620, mounting frame; 630, conveying roller; 640, conveying space; 310, cleaning roller; 700, auxiliary turnover assembly; 710, baffle; 711, limiting section; 712, transition section; 713, limiting space; 714, guide roller; 715, guide space; 110, support frame; 720, connecting rod; 120, mounting seat; 121, sliding groove; 130, moving plate; 131, lifting groove; 140, lead screw. DETAILED DESCRIPTION

[0018] The application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the application, and not to limit the application.

[0019] In order to make the drawing simple, only the parts related to the application are shown in each figure, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some figures, only one of the parts with the same structure or function is shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0020] In this article, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting" and "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0021] In the application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "above" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0022] In the description of this embodiment, the terms "up", "down", "left", "right", etc., such as directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0023] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0024] like Figures 1-2 The figure shows a conveying device for dehydrated garlic production in one embodiment of the present invention, which is used to convey garlic slices through a dryer 100. The device comprises a hopper 200, a negative pressure belt conveyor 300, and a brush roller 400. The hopper 200 is generally rectangular or inverted conical in shape. A feed port is provided at the top of the hopper 200 for pouring the cut garlic slices into the hopper 200. The bottom of the hopper 200 is inclined at an angle between 30° and 45°. This design allows the garlic slices to slide smoothly toward the feed end of the negative pressure belt conveyor 300 under their own weight. A discharge port is provided at the bottom of the hopper 200, near the negative pressure belt conveyor 300. The discharge port is sized to match the feed port of the negative pressure belt conveyor 300, allowing the negative pressure belt conveyor 300 to rest on the discharge port of the hopper 200 to prevent leakage of the garlic slices.

[0025] The negative pressure belt conveyor 300 is equipped with a negative pressure generating device, such as a vacuum pump. The vacuum pump is connected to the negative pressure chamber below the conveyor belt via a pipeline, forming a negative pressure area on the surface of the conveyor belt, thereby adsorbing the garlic slices in the silo 200. The conveyor belt is made of wear-resistant and corrosion-resistant rubber material. The surface of the conveyor belt can be added with anti-slip grooves to increase the friction between the garlic slices and the conveyor belt, preventing the garlic slices from sliding during transportation. The conveyor belt is driven by a combination of a motor and a reducer. The motor transmits power to the active roller of the conveyor belt through the reducer, driving the conveyor belt to operate. To ensure the smooth operation of the conveyor belt, the negative pressure belt conveyor 300 is provided with support rollers and a tensioning mechanism. The support rollers are evenly distributed below the conveyor belt, and the tensioning mechanism uses a hydraulic device to drive the tensioning wheel to adjust its position to keep the conveyor belt at an appropriate tension and prevent the conveyor belt from becoming loose or deviating during operation.

[0026] The brush roller 400 is in a cylindrical structure, and its length is slightly larger than the width of the conveying belt, so as to ensure that the bristles can cover the entire surface of the conveying belt. The two ends of the brush roller 400 are installed on the rack of the conveying device through bearing seats, so that the brush roller 400 can rotate flexibly. The bristles are made of wear-resistant nylon material, and the bristles are uniformly and densely arranged on the surface of the brush roller 400, so that the bristles can ensure comprehensive and uniform cleaning of the surface of the conveying belt during rotation. The bristles are selected from the medium hardness bristles in the toothbrush hardness classification, which can effectively remove the garlic slices that are not adsorbed by negative pressure, and will not damage the surface of the conveying belt. The brush roller 400 can rotate and abut against the conveying belt on the negative pressure belt type conveying device 300, and the bristles rotate in the opposite direction relative to the conveying belt, so as to re-sweep the garlic slices that are not adsorbed by negative pressure on the negative pressure belt type conveying device 300 to the direction of the hopper 200. The rotation of the brush roller 400 is driven by a motor, and the motor is connected to the brush roller 400 through belt transmission or chain transmission.

[0027] Working principle: The cut garlic slices are poured into the hopper 200 through the feeding port for storage. Due to the inclined structure at the bottom of the hopper 200, the garlic slices slide to the discharge port under the action of their own gravity. The discharge port is tightly connected with the feeding port of the negative pressure belt type conveying device 300, and the garlic slices start to enter the negative pressure belt type conveying device 300 under the double action of gravity and negative pressure. The vacuum pump of the negative pressure belt type conveying device 300 is started, a negative pressure is formed in the negative pressure cavity below the conveying belt, and an adsorption force is generated on the surface of the conveying belt, so as to adsorb the garlic slices close to the conveying belt in the hopper 200 on the conveying belt. The motor drives the conveying belt to run, and the adsorbed garlic slices are conveyed to the direction of the dryer 100. The brush roller 400 rotates under the drive of the motor, and the bristles densely arranged on the surface of the brush roller 400 abut against the surface of the conveying belt. When there are garlic slices on the conveying belt that are not firmly adsorbed by negative pressure or are partially lifted due to accumulation, the rotating bristles can remove these garlic slices, so that they are redistributed on the conveying belt, and the garlic slices are evenly laid on the conveying belt during conveying.

[0028] After being cleaned by the brush roller 400, the garlic slices are evenly laid on the conveying belt, and as the conveying belt runs, the garlic slices are conveyed to the inlet of the dryer 100. Since the conveying belt is connected with the dryer 100, the garlic slices smoothly enter the multi-layer mesh belt conveying device 500 in the dryer 100, and the drying process starts. Before entering the dryer 100, the uniform distribution of the garlic slices provides a good foundation for the subsequent drying, which helps to improve the drying efficiency, reduce heat waste and incomplete drying.

[0029] Through the negative pressure adsorption of the negative pressure belt type conveying device 300 and the cleaning effect of the brush roller 400, the problem of uncertain accumulation form of the garlic slices is effectively solved, so that the garlic slices can be evenly laid on the conveying belt before entering the dryer 100. This provides a good foundation for uniform drying in the dryer 100, reduces heat waste and incomplete drying, and improves the production quality of dehydrated garlic.

[0030] refer to Figure 3 and Figure 4 In some embodiments, a conveying device for dehydrated garlic production further includes a mesh belt conveyor 500, which comprises several layers of drying mesh belts 510 arranged vertically. Adjacent layers of drying mesh belts 510 are staggered within the dryer 100 along the conveying direction of the drying mesh belts 510, with the conveying directions of the two adjacent layers of drying mesh belts 510 being opposite. This staggered arrangement allows the garlic slices on the upper drying mesh belt 510 to naturally fall onto the lower drying mesh belt 510 under the action of gravity. The drying mesh belts 510 are perforated conveyor belts that provide channels for hot air to circulate between the layers, ensuring that the garlic slices are fully exposed to the hot air and evenly dried. Each layer of the drying mesh belts 510 has an independent drive roller. The drive rollers on different layers can be connected to a drive motor via a chain. One of the drive rollers between two adjacent layers of the drying mesh belts 510 is driven by the drive motor via a combination of gear meshing and chain transmission. Each drying mesh belt 510 can also be equipped with an independent drive mechanism consisting of a motor, a speed reducer, and a transmission chain. The motor transmits power to the transmission chain via the speed reducer, driving the drying mesh belts 510. A connecting assembly 600 is positioned between the top drying mesh belt 510 and the negative pressure belt conveyor 300, guiding the garlic slices from the conveyor belt to the drying mesh belt 510 for a smooth transition. The connecting assembly 600 can be an inclined plate-like structure.

[0031] The negative pressure belt conveyor 300 and the drying mesh belt 510 are directly connected. The gap between the negative pressure belt conveyor 300 and the drying mesh belt 510 depends on the diameter of the transmission roller on the negative pressure belt conveyor 300. Adding a plate-shaped connecting component 600 between the negative pressure belt conveyor 300 and the drying mesh belt 510 can abut against the conveyor belt surface on the negative pressure belt conveyor 300 at one end and against the top of the drying mesh belt 510 at the other end, thereby reducing the connection gap.

[0032] The negative pressure belt conveyor 300 and the uppermost drying mesh belt 510 are connected by the connecting assembly 600. Compared with directly connecting the negative pressure belt conveyor 300 and the uppermost drying mesh belt 510, the gap between different conveyor devices is reduced, thereby preventing the garlic slices from getting stuck or falling in the gap.

[0033] Furthermore, the height of one end of the negative pressure belt conveyor 300 connected to the connecting assembly 600 is higher than the height of the uppermost drying mesh belt 510. Figure 3 and Figure 4In some embodiments, the connecting assembly 600 comprises a connecting plate 610 and a mounting frame 620. The connecting plate 610 is connected to the negative pressure belt conveyor 300 and the uppermost drying mesh belt 510 at both ends, respectively, and is in an inclined state as a whole. The connecting plate 610 is in the shape of a rectangle as a whole, and the surface thereof is polished so that the garlic slices can slide down to the uppermost drying mesh belt 510 under the action of gravity after entering the connecting plate 610, and then are driven by the uppermost drying mesh belt 510 to move in the dryer 100. One end of the connecting plate 610 is pressed against the lower side of the discharge end of the conveying belt of the negative pressure belt conveyor 300, and is in contact with the curvature of the conveying belt to ensure that the garlic slices on the conveying belt can be effectively scraped off. The other end of the connecting plate 610 is in flat abutment with the uppermost drying mesh belt 510 through an arc segment to provide a smooth transition for the garlic slices entering the drying mesh belt 510.

[0034] The mounting frame 620 is in the form of a frame structure, and is fixed to the inner wall of the dryer 100 through bolting or welding and is located above the connecting plate 610. The length of the mounting frame 620 is consistent with that of the connecting plate 610, and the height of the mounting frame 620 is determined according to the size of the conveying roller 630 and the requirement of the garlic slice conveying space 640 so that the conveying space 640 can allow the garlic slices to pass through.

[0035] The plurality of conveying rollers 630 are uniformly distributed on the mounting frame 620, and the conveying rollers 630 and the upper side of the connecting plate 610 form a conveying space 640 to ensure that the garlic slices can pass through the conveying space 640, and the conveying rollers 630 can be in abutment with the top of the garlic slices to ensure that the garlic slices can be fully supported and guided during the conveying process, thereby avoiding the overlapping of the garlic slices laid flat on the negative pressure belt conveyor 300 after entering the connecting plate 610 due to the uncertainty of gravity. The two ends of the conveying roller 630 are mounted on the mounting frame 620 through bearings to enable the conveying roller 630 to rotate flexibly. In order to drive the conveying roller 630 to rotate, a motor and a transmission chain can be provided on the mounting frame 620, and the motor drives the conveying roller 630 to rotate synchronously through the transmission chain.

[0036] Further, the conveying roller 630 is sleeved with a protective sleeve made of a flexible material. The protective sleeve made of a flexible material has a deformation amount and can adapt to the thickness fluctuation between different garlic slices without extruding the garlic slices in the conveying space 640 and damaging the connecting plate 610.

[0037] Reference Figure 4In some embodiments, the conveying device for dehydrated garlic production further comprises a cleaning roller 310, which is cylindrical in shape and slightly longer than the width of the conveying belt. The surface of the cleaning roller 310 is densely covered with hard bristles. The shortest vertical distance between the surface of the cleaning roller 310 and the conveying belt on the negative pressure belt conveying device 300 is less than the length of the bristles. Through the rotation of the cleaning roller 310, the bristles can enter and exit the negative pressure holes on the conveying belt, thereby pushing some garlic particles stuck on the negative pressure holes, ensuring the stable operation of the negative pressure belt conveying device 300.

[0038] A filter screen is arranged between the negative pressure cavity of the negative pressure belt conveying device 300 and the negative pressure fan, which can prevent the garlic pieces from entering the negative pressure fan.

[0039] Reference Figure 4 and Figure 5 In some embodiments, the conveying device for dehydrated garlic production further comprises an auxiliary turnover assembly 700, which is located between adjacent drying mesh belts 510 to enable the garlic slices to be turned over before entering the lower drying mesh belt 510, thereby further improving the uniformity of the heating of the garlic slices. The specific auxiliary turnover assembly 700 comprises a baffle 710 made of stainless steel material with high temperature resistance, corrosion resistance and certain toughness, such as 316L stainless steel. This material can maintain good performance under long-term high temperature, humidity and slight corrosion of garlic slices, and is not prone to deformation and rust, ensuring the long-term stable operation of the auxiliary turnover assembly 700. The baffle 710 is composed of a limiting section 711 and a guide transition section 712. The limiting section 711 is semicircular or semieliptical, and is semi-covered outside the support roller at the front of the upper drying mesh belt 510 to effectively limit the movement path of the garlic slices on the drying mesh belt 510. The length of the limiting section 711 is not less than the length of the support roller of the drying mesh belt 510, ensuring that all garlic slices on the drying mesh belt 510 can enter the limiting space 713. The height of the limiting space 713 between the limiting section 711 and the upper drying mesh belt 510 is selected according to the thickness range of the garlic slices, which can limit the movement path of the garlic slices without excessive pressing of the garlic slices. The guide transition section 712 extends downward from the end of the limiting section 711, and the lower end abuts against the lower drying mesh belt 510, ensuring that the garlic slices can smoothly transition from the upper drying mesh belt 510 to the lower drying mesh belt 510. The fixing method of the baffle 710 is not limited here.

[0040] Under the driving of the upper layer drying mesh belt 510, the garlic slices gradually enter the limiting space 713, and then gradually turn to a vertical state in the limiting space 713. The top surface of the garlic slices on the upper layer drying mesh belt 510 is attached to the limiting section 711. After leaving the limiting space 713, the original top surface of the garlic slices remains attached to the guide transition section 712. Under the guidance of the guide transition section 712, the original top surface of the garlic slices enters the lower layer drying mesh belt 510, and the original bottom surface of the garlic slices is located above, thereby realizing the turning of the garlic slices.

[0041] With reference to Figure 6 and Figure 7 In some embodiments, the auxiliary turning assembly 700 further comprises a guide roller 714 which is in the shape of a cylinder as a whole and has a length not less than the width of the drying mesh belt 510. Here, the width of the drying mesh belt 510 refers to the width of the drying mesh belt 510 in the direction of the supporting roller axis. The guide roller 714 is rotatably arranged on the supporting plate extending out of the baffle 710 and is driven to rotate by a separate driving device. The rotating direction of the guide roller 714 is the same as that of the driving roller of the upper layer drying mesh belt 510, and the guide roller 714 is located between two adjacent drying mesh belts 510.

[0042] The guide roller 714 and the guide transition section 712 form a guide space 715. After the garlic slices leave the limiting space 713, they enter the guide space 715. On the one hand, the guide space 715 can further limit the movement path of the garlic slices. On the other hand, the active rotation of the guide roller 714 can provide the garlic slices with a force for sliding along the guide transition section 712, thereby avoiding the garlic slices from being blocked and accumulated due to the gravity alone.

[0043] Further, the auxiliary turning assembly 700 is arranged in the drying machine 100 by a separate driving assembly, so that the auxiliary turning assembly 700 can move to adjust the size of the limiting space 713 according to different thickness ranges of the garlic slices, thereby increasing the applicability of the device. A flexible protective sleeve is sleeved on the surface of the guide roller 714. The flexible protective sleeve has a certain deformation amount, which can prevent the guide roller 714 from crushing the garlic slices and adapt to different thicknesses of the garlic slices.

[0044] With reference to Figure 7 and Figure 8 In some embodiments, the conveying device for dehydrated garlic production further comprises a supporting frame 110, a mounting seat 120 and a moving plate 130. The supporting frame 110 is in the form of a frame structure and is arranged in the drying machine 100. The mesh belt conveying device 500 is arranged on the supporting frame 110. A plurality of mounting seats 120 are uniformly arranged on the supporting frame 110 and correspond to the front of each layer of drying mesh belt 510, thereby providing a stable mounting basis for the auxiliary turning assembly 700. The mounting seat 120 and the supporting frame 110 can be connected by welding or bolts.

[0045] The baffle plate 710 is fixedly provided with a sliding frame away from one side of the limiting space 713. The sliding frame is fixedly provided with a connecting rod 720 at both ends. The two connecting rods 720 can be fixed on the sliding frame of the baffle plate 710 by welding or bolt connection. Each mounting seat 120 is provided with an inclined sliding groove 121. The inclination angle of the inclined sliding groove 121 is about 45°. The cross-sectional shape of the sliding groove 121 can be dovetail-shaped or T-shaped. This shape can effectively prevent the connecting rod 720 from moving laterally in the sliding groove 121, ensuring smooth sliding of the connecting rod 720 along the predetermined inclined direction. The height of the sliding groove 121 gradually increases away from the drying mesh belt 510.

[0046] The moving plate 130 is composed of two rectangular plates connected by bolts at the four corners. The two rectangular plates form a lifting groove 131. The connecting rod 720 is partially located in the lifting groove 131. The moving plate 130 is driven to move along the conveying direction of the drying mesh belt 510 by a separate driving assembly, thereby driving the connecting rod 720 to move. Since a section of the connecting rod 720 is also located in the sliding groove 121, the connecting rod 720 will move along the track of the sliding groove 121. At this time, the connecting rod 720 will rise and fall in the lifting groove 131 relative to the moving plate 130.

[0047] Through the arrangement of the inclined sliding groove 121, the moving plate 130 can be moved to simultaneously control the synchronous increase or reduction of the limiting space 713 between the limiting section 711 and the top of the upper drying mesh belt 510 and the limiting section 711 and the frontmost end of the upper drying mesh belt 510, thereby adapting to garlic slices of different thicknesses.

[0048] Reference Figure 7 and Figure 8 In some embodiments, the conveying device for dehydrated garlic production further includes a lead screw 140. One end of the lead screw 140 is mounted on the moving plate 130 through a deep groove ball bearing. The bearing seat is made of cast iron or cast steel and is fixedly connected to the moving plate 130 by bolts to ensure firm installation. To prevent dust and debris from entering the bearing, a sealing cover is installed on the outside of the bearing to ensure good lubrication and normal operation of the bearing. The other end of the lead screw 140 is threadedly connected to the threaded hole on the mounting seat 120. This ensures that the lead screw 140 can drive the moving plate 130 to move when it rotates.

[0049] The lead screw 140 can be driven to rotate by a separate driving device. To avoid the high-temperature environment in the dryer 100, the lead screw 140 can be transmissionally connected to the driving device outside the inner wall of the dryer 100.

[0050] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced, without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A conveying device for producing dehydrated garlic, used for conveying garlic slices through a drying machine (100), characterized in that: include: A silo (200) is located on one side of the dryer (100), and the silo (200) is used to store garlic slices; a negative pressure belt conveyor (300), one end of the negative pressure belt conveyor (300) being located in the silo (200) and the other end being connected to the dryer (100), so that the negative pressure belt conveyor (300) is used to negatively absorb the garlic slices in the silo (200) and convey the garlic slices to the dryer (100); A brush roller (400) is rotatably arranged above the negative pressure belt conveyor (300), and the brush roller (400) is located at one end of the negative pressure belt conveyor (300) close to the silo (200). The surface of the brush roller (400) has a plurality of densely distributed bristles. The brush roller (400) can drive the bristles to rotate and abut against the conveyor belt surface of the negative pressure belt conveyor (300), so that the garlic slices on the negative pressure belt conveyor (300) that are not absorbed by the negative pressure can be scraped off by the bristles.

2. A conveying device for dehydrated garlic production according to claim 1, characterized in that: The invention also includes a mesh belt conveyor device (500), wherein the mesh belt conveyor device (500) includes a plurality of layers of drying mesh belts (510) staggeredly arranged in the dryer (100), wherein the drying mesh belts (510) located in the lower layer are used to receive the garlic slices on the drying mesh belts (510) located in the upper layer, and the drying mesh belts (510) in the uppermost layer are connected to the discharge end of the negative pressure belt conveyor device (300) via a connecting assembly (600), and the connecting assembly (600) is used to sequentially convey the garlic slices on the negative pressure belt conveyor device (300) to the drying mesh belt (510) in the uppermost layer.

3. A conveying device for dehydrated garlic production according to claim 2, characterized in that: The height of the discharge end of the negative pressure belt conveyor (300) is greater than the height of the uppermost drying mesh belt (510), and the connecting assembly (600) includes: a connecting plate (610), one end of the connecting plate (610) being pressed against the outer lower portion of the discharge end of the conveyor belt, and the other end extending to the uppermost drying mesh belt (510), wherein the connecting plate (610) is capable of scraping off garlic slices adhering to the conveyor belt; A mounting frame (620) is arranged above the connecting plate (610), and a plurality of conveying rollers (630) are rotatably arranged on the mounting frame (620). A conveying space (640) for the garlic slices to pass through is formed between the conveying rollers (630) and the connecting plate (610).

4. A conveying device for dehydrated garlic production according to claim 3, characterized in that: The surface of the conveying roller (630) is covered with a protective sleeve, and the protective sleeve is made of a flexible material.

5. The conveying device for dehydrated garlic production according to claim 1, characterized in that: Also includes: A cleaning roller (310) is rotatably arranged below the negative pressure belt conveyor device (300), and a surface of the cleaning roller (310) has a plurality of bristles. The cleaning roller (310) can drive the bristles to rotate and clean the negative pressure holes on the conveyor belt.

6. The conveying device for dehydrated garlic production according to claim 2, characterized in that: It also includes an auxiliary turning assembly (700) located at the discharge end of the drying mesh belt (510), and the auxiliary turning assembly (700) includes: A baffle (710) is provided in the dryer (100), the baffle (710) being located at the feed end of the drying mesh belt (510), the baffle (710) comprising a connected limiting section (711) and a guide transition section (712) connected to the lower edge of the limiting section (711), the limiting section (711) half covering the outer side of the feed end of the drying mesh belt (510) located at the upper layer, a limiting space (713) being provided between the inner wall of the baffle (710) and the outer wall of the drying mesh belt (510) located at the upper layer, the limiting space (713) being used to guide the garlic slices to move along the wall surface of the discharge end of the drying mesh belt (510), the lower end of the guide transition section (712) being able to abut against the drying mesh belt (510) located at the lower layer, so as to guide the garlic slices to turn over and be sent to the drying mesh belt (510) located at the lower layer.

7. The conveying device for dehydrated garlic production according to claim 6, characterized in that: The auxiliary turning assembly (700) further includes: A guide roller (714) is rotatably arranged on the inner side of the guide transition section (712), and the guide roller (714) and the guide transition section (712) form a guide space (715). The guide roller (714) is used to limit the garlic slices in the guide space (715) to move along the inner wall of the guide transition section (712) and flip over to be sent to the drying mesh belt (510) located at the lower layer.

8. The conveying device for dehydrated garlic production according to claim 7, characterized in that: The auxiliary turning assembly (700) is movably arranged in the dryer (100), and the auxiliary turning assembly (700) can move closer to or farther away from the drying mesh belt (510) to adjust the size of the limiting space (713).

9. The conveying device for producing dehydrated garlic according to claim 8, further comprising a supporting assembly arranged in the dryer (100), characterized in that: The support assembly comprises: A support frame (110) is provided in the drying machine (100), and the support frame (110) is used to install the mesh belt conveying device (500); There are a plurality of mounting seats (120), each of which is arranged on the support frame (110), and each of the mounting seats (120) is located at the discharge end of the drying mesh belt (510) in a one-to-one correspondence, and the auxiliary turning assembly (700) is slidably arranged on each of the mounting seats (120); Wherein, both side walls of the mounting seat (120) are provided with inclined slide grooves (121), the outer side of the baffle (710) is connected to a sliding frame, and both sides of the sliding frame are provided with connecting rods (720), and the connecting rods (720) are slidably connected in the slide grooves (121) in a one-to-one manner to adjust the size of the limiting space (713).

10. The conveying device for dehydrated garlic production according to claim 9, characterized in that: Also includes; A movable plate (130) is horizontally movable on the mounting seat (120), the movable plate (130) having a lifting groove (131) extending in an up-down direction, the sliding frame being slidably disposed in the lifting groove (131), and driven by the translation of the movable plate (130), the sliding groove (121) can guide the baffle (710) to move toward a side away from the drying mesh belt (510); A lead screw (140) is provided through the mounting seat (120) and is threadedly connected to the mounting seat (120). One end of the lead screw (140) is rotatably provided on the movable plate (130), and the other end is connected to a rotary drive member. The lead screw (140) can drive the movable plate (130) to move under the action of the rotary drive member.

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