Conveying device for turning plate circulating type tea dryer

Abstract

The utility model discloses a conveying device for a turning plate circulation type tea dryer, which comprises a drying box, the drying box comprises a box body and a partition plate arranged in the box body, and the box body is divided into a drainage area and a drying area by the partition plate; a conveying unit is arranged in the drying box and comprises a chain wheel, a transmission mechanism, a chain and a turning plate; a turnover plate discharging area is arranged in the drying area in the drying box, and an anti-turnover mechanism is arranged in the turnover plate discharging area and used for supporting the turnover plate. According to the conveying device, due to the arrangement of the anti-overturning mechanism, sound generated by collision during overturning of the overturning plate is greatly reduced, the problem of reverse dead halt of the driving motor can be solved, the phenomena of tea clamping, bridging and tea hanging of tea leaves on the overturning plate are effectively avoided, and the conveying efficiency is improved through the arranged conveying unit. And the whole structure is simple, installation is convenient, the use requirement of the tea leaf drying machine is met, and the tea leaf drying machine is suitable for application and popularization.

Description

Technical Field

[0001] This utility model relates to the technical field of tea processing equipment, specifically to a conveying device for a flip-type circulating tea dryer. Background Technology

[0002] In the tea processing and production process, tea leaves need to be dried to remove moisture, reduce the water content in the tea cells, lower their activity, and eliminate the semi-permeability of the cell membranes, ensuring that subsequent processing can produce high-quality tea. Therefore, the quality of tea drying directly affects the quality of the tea. There are three main methods of tea drying: oven drying, pan-frying, and sun drying. For green tea, the drying process generally involves oven drying first, followed by pan-frying. Because the moisture content of the tea leaves after rolling is still very high, if directly pan-fried, they will quickly clump together in the pan, and the tea juice will easily stick to the pan walls. Therefore, the tea leaves are first oven-dried to reduce the moisture content to a level suitable for pan-frying.

[0003] In existing tea dryers, tea leaves often clump together during the drying process, resulting in uneven distribution and poor drying efficiency. To address this, existing dryers typically incorporate a conveyor system with a flipping mechanism to tumble the tea leaves during drying, improving quality. However, these conveyor systems generally consist of sprockets, chains, and flipping plates. Drying is achieved through layer-by-layer tumbling. When the flipping plate reaches the output end of the conveyor, an open groove at the guide rail causes it to flip downwards, dropping the tea leaves to the lower layer. The main drawbacks of this system are: firstly, the impact noise from the flipping plate during downward flipping, especially when dragged to the groove, can cause jamming, potentially leading to motor reversal and failure. Secondly, jamming can cause tea leaves to become trapped or bridged at the flipping plate, damaging the tea. One problem is that tea getting stuck in the tray can prevent the flap from turning properly, causing the tea leaves to fall from the groove into the drying chamber. Another problem is bridging, which can cause the tea leaves to fall directly to the bottom, resulting in a mixture of dry and wet tea leaves, thus affecting the drying efficiency. Therefore, to prevent tea getting stuck and bridging in the groove and to avoid damage to the tea leaves, a conveying device for a flap-type circulating tea dryer is provided to meet the tea conveying needs of existing dryers. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the problems existing in the background art by providing a conveying device with a simple structure and convenient operation. Using this conveying device, not only can the noise caused by the impact when the flap is flipped be avoided, but the phenomenon of tea being stuck or bridging at the groove of the flap can also be prevented. At the same time, by setting the sprocket and chain of the conveying device inside the drying box, not only can the conveying needs of tea be met, but the heat loss in the drying box can also be effectively reduced, thereby improving the utilization rate of heat and reducing the tea processing cost, so as to meet the use needs of tea dryers. Specifically, it is a conveying device for a flap circulating tea dryer.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a conveying device for a flip-plate circulating tea dryer, comprising a drying box, the drying box comprising a box body and a partition disposed within the box body, the box body being divided into a diversion area and a drying area by the partition; multiple sets of parallel conveying units are provided in the drying box, each conveying unit comprising a sprocket, a transmission mechanism for driving the sprocket to rotate, a chain disposed on the sprocket, and multiple flip plates that move synchronously with the chain, one side of each flip plate being rotatably connected to the chain; and a flip plate unloading area is provided in the drying area within the drying box, the flip plate unloading area being disposed in front of the sprocket near the output end of the conveying unit, and an anti-overturning mechanism is provided in the flip plate unloading area, the anti-overturning mechanism being used to support the flip plates that move synchronously with the chain.

[0006] Furthermore, in the conveying device for a flip-type circulating tea dryer described in this utility model, the anti-tilting mechanism includes an anti-tilting positioning block and positioning screws. The anti-tilting positioning block is fixed in the partition inside the box by the positioning screws and is located between the chains that are rotatably connected to the sprocket. The surface of the anti-tilting positioning block is provided with a plurality of sawtooth-shaped striking teeth, and the anti-tilting mechanism is connected to the flip plate above the flip plate unloading area through the striking teeth.

[0007] Furthermore, in the conveying device for a flip-type circulating tea dryer described in this utility model, the striking teeth are formed by a sawtooth structure consisting of an inclined plane and a straight plane, and the length of the inclined plane on each striking tooth is greater than the height of the straight plane. A support cavity is formed between two adjacent striking teeth through the inclined plane and the straight plane, and the striking teeth can contact and connect with the flip plate through the support cavity.

[0008] Furthermore, in the conveying device for a flip-type circulating tea dryer described in this utility model, the top of the striking teeth is also provided with an arc transition structure.

[0009] Furthermore, the conveying device for a flip-type circulating tea dryer according to the present invention includes a transmission mechanism comprising a transmission shaft and a bearing seat. Through holes corresponding to the transmission shaft are provided on the sides of the partition and the housing. The bearing seat is installed in the flow-in zone and fixed to the outer surface of the partition. The transmission shaft passes through the through hole in the partition and is rotatably connected to the bearing seat, with both ends extending outwards to the outer side of the housing through through holes in the housing. The sprocket is fixed on the transmission shaft located on the inner side of the partition, and the transmission mechanism drives the sprocket to rotate synchronously with the transmission shaft via the transmission shaft.

[0010] Furthermore, in the conveying device for a flip-type circulating tea dryer described in this utility model, a fixed guide plate is also provided in the drying area inside the box. The fixed guide plate is arranged in an arc shape and is located behind the sprocket on one side of the output end of the conveying unit. The fixed guide plate is in contact with the flip plate in the conveying unit.

[0011] Furthermore, in the conveying device for a flip-type circulating tea dryer described in this utility model, a guide rail is also provided on the partition plate. The guide rail is set on the inner side of the partition plate on both sides of the drive shaft located in the drying zone. Rollers corresponding to the guide rail are respectively provided at both ends of the flip plate. The flip plate in the conveying unit is connected to the guide rail through the rollers.

[0012] The conveying device for a flip-type circulating tea dryer described in this utility model has the following advantages compared with the prior art: Because an anti-overturning mechanism is provided in the flip-plate feeding area, and the striking teeth in the anti-overturning positioning block are used to support the flip-plate moving synchronously with the chain, it not only effectively reduces the noise generated by the impact when the flip-plate is flipped, but also prevents tea from being stuck or bridging in the flip-plate feeding area. Simultaneously, because multiple sets of parallel conveying units are provided in the drying chamber, and the sprockets and chains in the conveying units are all located in the drying area of ​​the drying chamber, and a fixed guide plate that contacts and connects with the flip-plate is also provided in the drying area, it not only meets the tea conveying requirements, but also effectively reduces heat loss in the drying chamber, thereby improving the utilization rate of heat and reducing tea processing costs, thus meeting the usage requirements of the tea dryer. Therefore, the conveying device described in this utility model, with its anti-tilting mechanism, greatly reduces the noise generated by the impact when the flaps are flipped. This not only effectively reduces noise but also prevents the drive motor from stalling due to flap jamming, effectively avoiding tea jamming, bridging, and sticking on the flaps. Furthermore, the configured conveying unit not only meets the tea conveying requirements but also effectively reduces heat loss within the drying chamber. Its overall structure is simple, easy to install, and meets the usage requirements of tea dryers, making it suitable for widespread application. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the conveying device described in this utility model;

[0015] Figure 2 yes Figure 1 Enlarged schematic diagram of the local structure at point A;

[0016] Figure 3 This is a cross-sectional structural schematic diagram of the conveying device described in this utility model;

[0017] Figure 4 This is a schematic diagram of the anti-flip positioning block described in this utility model.

[0018] The diagram shows: 1-Drying box, 11-Box body, 12-Baffle, 13-Drainage area, 14-Drying area, 15-Flip plate unloading area, 2-Conveying unit, 21-Sprocket, 22-Chain, 23-Flip plate, 24-Drive shaft, 25-Bearing seat, 3-Anti-overturning mechanism, 31-Anti-overturning positioning block, 32-Positioning screw, 33-Actuating teeth, 331-Inclined plane, 332-Straight plane, 4-Fixed guide plate, 5-Guide rail. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0020] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," and "right" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "provided with" 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 an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] It should be noted that the term "comprising" or any other variation is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Example 1

[0023] like Figures 1 to 4 As shown, this embodiment provides a conveying device for a flip-plate circulating tea dryer, including a drying box 1. The drying box 1 includes a box body 11 and a partition 12 disposed inside the box body 11. The box body 11 is divided into a diversion area 13 and a drying area 14 by the partition 12. Multiple sets of parallel conveying units 2 are provided inside the drying box 1. Each conveying unit 2 includes a sprocket 21, a transmission mechanism for driving the sprocket 21 to rotate, a chain 22 disposed on the sprocket 21, and multiple flip plates 23 that move synchronously with the chain 22. One side of each flip plate 23 is rotatably connected to the chain 22. A flip plate unloading area 15 is provided in the drying area 14 inside the drying box 1. The flip plate unloading area 15 is disposed in front of the sprocket 21 near the output end of the conveying unit 2. An anti-overturning mechanism 3 is provided in the flip plate unloading area 15. The anti-overturning mechanism 3 is used to support the flip plates 23 that move synchronously with the chain 22.

[0024] The anti-overturning mechanism 3 includes an anti-overturning positioning block 31 and a positioning screw 32. The anti-overturning positioning block 31 is fixed in the partition 12 inside the housing 11 by the positioning screw 32 and is located between the chain 22 that is rotatably connected to the sprocket 21. The surface of the anti-overturning positioning block 31 is provided with a plurality of sawtooth-shaped striking teeth 33. The anti-overturning mechanism 3 is in contact with the flip plate 23 above the flip plate unloading area 15 through the striking teeth 33.

[0025] The transmission mechanism includes a drive shaft 24 and a bearing seat 25. The sides of the partition 12 and the housing 11 are respectively provided with through holes corresponding to the drive shaft 24. The bearing seat 25 is installed in the drainage area 13 and fixed to the outer side of the partition 12. The drive shaft 24 passes through the through hole in the partition 12 and is rotatably connected to the bearing seat 25. Its two ends extend outward to the outside of the housing 11 through the through hole in the housing 11. The sprocket 21 is fixed on the drive shaft 24 located on the inner side of the partition 12. The transmission mechanism drives the sprocket 21 to rotate synchronously with the drive shaft 24 through the drive shaft 24.

[0026] Furthermore, in the conveying device for a flip-type circulating tea dryer described in this embodiment, the striking teeth 33 are formed by a sawtooth structure consisting of an inclined plane 331 and a straight plane 332, and the length of the inclined plane 331 on each striking tooth 33 is greater than the height of the straight plane 332. A support cavity is formed between two adjacent striking teeth 33 through the inclined plane 331 and the straight plane 332, and the striking teeth 33 can contact and connect with the flip plate 23 through the support cavity.

[0027] Furthermore, in the conveying device for the flip-type circulating tea dryer described in this embodiment, a fixed guide plate 4 is also provided in the drying area 14 inside the housing 11. The fixed guide plate 4 is arranged in an arc shape and is located behind the sprocket 21 on one side of the output end of the conveying unit 2. The fixed guide plate 4 is in contact with the flip plate 23 in the conveying unit 2. Example 2

[0028] This embodiment is based on embodiment 1. In order to improve the stability of the flip plate 23 in the conveying unit 2 during synchronous movement with the chain 22, a conveying device for a flip plate circulating tea dryer as described in this embodiment is adopted. A guide rail 5 is also provided on the partition plate 12. The guide rail 5 is set on the inner side of the partition plate 12 on both sides of the drive shaft 24 located in the drying zone 14. Rollers corresponding to the guide rail 5 are respectively provided at both ends of the flip plate 23. The flip plate 23 in the conveying unit 2 is connected to the guide rail 5 through the rollers. The guide rail 5 provided on the partition plate 12 supports the flip plate 23, which can improve the stability of the flip plate 23 during synchronous movement with the chain 22.

[0029] In addition, in order to enable the flap 23 to slide smoothly on the anti-overturning positioning block 31 in the anti-overturning mechanism 3 and avoid damage to the flap 23 due to impact, and also to reduce the friction between the striking tooth 33 and the flap 23, the top of the striking tooth 33 is provided with an arc transition structure. The arc transition structure at the top of the striking tooth 33 contacts the flap 23, which can avoid damage to the flap 23 and thus enable the conveying unit 2 to operate more smoothly.

[0030] The conveying device for a flip-type circulating tea dryer described in this utility model has an anti-overturning mechanism 3 in the flip-plate feeding area 15. The striking teeth 33 in the anti-overturning positioning block 31 support the flip-plate 23, which moves synchronously with the chain 22. This not only effectively reduces the noise caused by the impact when the flip-plate is flipped, but also prevents the flip-plate 23 from causing tea to get stuck or bridging at the flip-plate feeding area 15. At the same time, multiple sets of parallel conveying units 2 are provided in the drying box 1. The conveying units 2 are powered by a motor installed on the outside of the drying box, which drives the conveying units 2 set in the drying box to operate normally. The sprockets 21 and chains 22 in the conveying units 2 are set in the drying area 14 in the drying box. The drying area 14 is also provided with a fixed guide plate 4 that contacts and connects with the flip-plate 23. This not only meets the tea conveying needs, but also effectively reduces the heat loss in the drying box, thereby improving the utilization rate of heat and reducing the tea processing cost, so as to meet the use requirements of the tea dryer.

[0031] In summary, the conveying device described in this utility model, with its anti-tilting mechanism 3, significantly reduces the noise generated by the impact when the flip plate 23 is flipped. This not only effectively reduces noise but also prevents the drive motor from stalling due to the flip plate jamming, effectively avoiding tea jamming, bridging, and sticking on the flip plate 23. Furthermore, the conveying unit 2 not only meets the tea conveying requirements but also effectively reduces heat loss within the drying chamber. Its overall structure is simple, easy to install, and meets the usage requirements of tea dryers, making it suitable for widespread application.

[0032] The conveying device described in this utility model, since the multiple sets of parallel conveying units 2 arranged in the drying chamber 1 are well-known technical solutions in the prior art, are not described in detail in this specification. Other aspects of this utility model not described in detail are conventional techniques known to those skilled in the art.

[0033] The scope of protection of this utility model is not limited to the technical solutions disclosed in the specific embodiments. The above description is only a preferred embodiment of this utility model and does not limit this utility model. Any minor modifications, equivalent substitutions and improvements made based on the technical solutions of this utility model should be included within the scope of protection of the technical solutions of this utility model.

Claims

1. A conveying device for a flip-type circulating tea dryer, comprising a drying box (1), wherein the drying box (1) comprises a box body (11) and a partition (12) disposed within the box body (11), wherein the box body (11) is divided into a diversion area (13) and a drying area (14) by the partition (12); characterized in that: Multiple sets of parallel conveying units (2) are provided in the drying box (1). Each conveying unit (2) includes a sprocket (21), a transmission mechanism for driving the sprocket (21) to rotate, a chain (22) on the sprocket (21), and multiple flip plates (23) that move synchronously with the chain (22). One side of each flip plate (23) is rotatably connected to the chain (22). A flip plate unloading area (15) is provided in the drying area (14) of the drying box (1). The flip plate unloading area (15) is located in front of the sprocket (21) near the output end of the conveying unit (2). An anti-overturning mechanism (3) is provided in the flip plate unloading area (15). The anti-overturning mechanism (3) is used to support the flip plates (23) that move synchronously with the chain (22).

2. The conveying device for a flip-plate circulating tea dryer according to claim 1, characterized in that: The anti-overturning mechanism (3) includes an anti-overturning positioning block (31) and a positioning screw (32). The anti-overturning positioning block (31) is fixed in the partition (12) inside the box (11) by the positioning screw (32) and is located between the chain (22) that is rotatably connected to the sprocket (21). The surface of the anti-overturning positioning block (31) is provided with a plurality of sawtooth-shaped striking teeth (33). The anti-overturning mechanism (3) is in contact with the flip plate (23) above the flip plate unloading area (15) through the striking teeth (33).

3. The conveying device for a flip-plate circulating tea dryer according to claim 2, characterized in that: The striking tooth (33) is formed by a serrated structure consisting of an inclined plane (331) and a straight plane (332). The length of the inclined plane (331) on each striking tooth (33) is greater than the height of the straight plane (332). A support cavity is formed between two adjacent striking teeth (33) through the inclined plane (331) and the straight plane (332). The striking tooth (33) can contact and connect with the flap (23) through the support cavity.

4. A conveying device for a flip-plate circulating tea dryer according to claim 3, characterized in that: The top of the striking tooth (33) is also provided with a rounded transition structure.

5. A conveying device for a flip-plate circulating tea dryer according to claim 1, characterized in that: The transmission mechanism includes a transmission shaft (24) and a bearing seat (25). The sides of the partition (12) and the housing (11) are respectively provided with through holes corresponding to the transmission shaft (24). The bearing seat (25) is installed in the drainage area (13) and fixed on the outer side of the partition (12). The transmission shaft (24) passes through the through hole in the partition (12) and is rotatably connected to the bearing seat (25). Its two ends extend outward to the outside of the housing (11) through the through hole in the housing (11). The sprocket (21) is fixed on the transmission shaft (24) located on the inner side of the partition (12). The transmission mechanism drives the sprocket (21) to rotate synchronously with the transmission shaft (24) through the transmission shaft (24).

6. A conveying device for a flip-plate circulating tea dryer according to claim 1, characterized in that: A fixed guide plate (4) is also provided in the drying area (14) inside the box (11). The fixed guide plate (4) is arranged in an arc shape. The fixed guide plate (4) is located behind the sprocket (21) on one side of the output end of the conveying unit (2). The fixed guide plate (4) is in contact with the flip plate (23) in the conveying unit (2).

7. A conveying device for a flip-plate circulating tea dryer according to claim 1, characterized in that: A guide rail (5) is also provided on the partition (12). The guide rail (5) is set on the inner side of the partition (12) on both sides of the drive shaft (24) located in the drying zone (14). Rollers corresponding to the guide rail (5) are provided at both ends of the flip plate (23). The flip plate (23) in the conveying unit (2) is connected to the guide rail (5) through the rollers.

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