Conveying device for turning plate circulating type tea dryer

Abstract

The invention 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. By the adoption of the conveying device, through the arranged 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 prevented, the phenomena of tea clamping, bridging and tea hanging of tea leaves on the overturning plate are effectively avoided, through the arranged conveying unit, heat energy loss in the drying box is reduced, and the service life of the drying box is prolonged. The tea dryer is simple in overall structure, convenient to install, capable of meeting the using requirements of the tea dryer and suitable for application and popularization.

Description

Technical Field

[0001] The invention relates to the technical field of tea processing equipment, and in particular to a conveying device for a flap circulation type tea drying machine. Background Art

[0002] During the tea processing and production process, tea leaves need to be dried to remove moisture from the tea leaves, reduce the moisture content in tea cells, reduce their activity and remove the semi-permeability of the cell membrane, so as to ensure that the subsequent processing can normally produce high-quality tea leaves. It can be seen that the quality of tea leaves will be directly affected by the quality of tea leaves. There are three main methods of tea leaf drying: drying, frying and sun drying. For the drying process of green tea, it is generally dried first and then fried. Because the water content of tea leaves after rolling is still very high, if they are fried directly, they will quickly form lumps in the pot of the frying machine, and the tea juice will easily stick to the pot wall. Therefore, the tea leaves are first dried to reduce the water content to meet the requirements of pan frying.

[0003] In the process of drying tea leaves in the existing dryer, the tea leaves cannot be evenly distributed in the dryer, and the tea leaves will pile up together, which affects the drying effect of the tea leaves. In order to solve the problem of tea leaves piling up and uneven drying during the drying process, the existing dryer generally adds a conveying device with a flap structure, and the tea leaves in the dryer are turned over and dried by the flap, so as to improve the drying quality of the tea leaves. However, the existing conveying device for the dryer generally includes a sprocket, a chain and a flap, and the drying is achieved by flipping the material layer by layer. When the flap runs to the output end of the conveying device with the chain, due to the opening groove at the end of the guide rail, when the flap runs to the groove, it will flip down, and the material will fall into the lower layer. The existing conveying device has the following main defects: first, the flap is dragged to the groove. When the flap is flipped down, a lot of noise will be generated due to the sound of the flap hitting, and the flap is prone to jamming, which is easy to cause the reverse crash of the driving motor. At the same time, due to the jamming of the flap, it is also easy to cause the tea leaves to be clamped and bridged at the flap, which is easy to damage the tea leaves. Among them, the phenomenon of tea clamping easily prevents the flap from turning over, causing the tea to be unable to fall from the groove into the drying box, and the phenomenon of bridging easily causes the tea to fall directly to the bottom, resulting in a mixture of dry and wet tea, thereby affecting the tea drying efficiency. Therefore, in order to prevent the phenomenon of tea clamping and bridging caused by the flap in the groove and avoid damage to the tea, a conveying device for a flap circulation tea dryer is provided to meet the existing dryer's tea conveying needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a conveying device with simple structure and easy operation in response to the problems existing in the background technology. By using the conveying device, not only the sound generated by the impact when the flap is turned over can be avoided, but also the flap can be prevented from clamping the tea and bridging the tea in the groove. At the same time, the sprocket and chain of the conveying device are arranged in the drying box, which can not only meet the transportation needs of the tea, but also effectively reduce the heat energy loss in the drying box, thereby improving the utilization rate of hot air and reducing the tea processing cost, so as to meet the use requirements of the tea dryer. Specifically, it is a conveying device for a flap circulation type tea dryer.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a conveying device for a flap circulation type tea dryer, comprising a drying box, the drying box comprising a box body and a partition arranged in the box body, the box body is divided into a drainage area and a drying area by the partition; a plurality of groups of parallelly arranged conveying units are provided in the drying box, the conveying unit comprises a sprocket, a transmission mechanism for driving the sprocket to rotate, a chain arranged on the sprocket, and a plurality of flaps moving synchronously with the chain, one of the side edges of the flaps being rotatably connected to the chain; and a flap unloading area is provided in the drying area in the drying box, the flap unloading area is arranged in front of the sprocket on the side close to the output end of the conveying unit, and an anti-flipping mechanism is provided in the flap unloading area, the anti-flipping mechanism is used to support the flap moving synchronously with the chain.

[0006] Furthermore, a conveying device for a flap circulation type tea dryer described in the present invention is adopted, and the anti-flip mechanism includes an anti-flip positioning block and a positioning screw, and the anti-flip positioning block is fixed to the partition in the box body by the positioning screw and is located between the chains rotatably connected to the sprocket; a plurality of serrated knocking teeth are provided on the surface of the anti-flip positioning block, and the anti-flip mechanism is connected to the flap above the flap unloading area by the knocking teeth.

[0007] Furthermore, a conveying device for a flap circulation type tea dryer is adopted according to the present invention, wherein the knocking teeth are composed of an inclined plane and a straight plane to form a sawtooth structure, and the length of the inclined plane on each knocking tooth is greater than the height of the straight plane, and a support cavity is formed between two adjacent knocking teeth by the inclined plane and the straight plane, and the knocking teeth can be in contact and connected with the flap through the support cavity.

[0008] Furthermore, using the conveying device for the flap circulation type tea drying machine described in the present invention, the top of the knocking tooth is also provided with an arc transition structure.

[0009] Furthermore, a conveying device for a flap circulation tea dryer described in the present invention is adopted, and the transmission mechanism includes a transmission shaft and a bearing seat, and through holes corresponding to the transmission shaft are respectively provided on the sides of the partition and the box body, and the bearing seat is installed in the drainage area and fixed to the outer side of the partition, and the transmission shaft is rotatably connected to the bearing seat after passing through the through hole in the partition, and its two ends extend outward to the outside of the box body through the through holes in the box body; 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 through the transmission shaft.

[0010] Furthermore, a conveying device for a flap circulation type tea dryer described in the present invention is adopted, and a fixed guide plate is also provided in the drying area within the box body. The fixed guide plate is arranged in an arc-shaped structure, and the fixed guide plate is located behind the sprocket on one side of the output end of the conveying unit. The fixed guide plate is in contact and connected with the flap in the conveying unit.

[0011] Furthermore, a conveying device for a flap circulation type tea dryer described in the present invention is adopted, and a guide rail is also provided on the partition, and the guide rail is arranged on the inner side of the partition on both sides of the transmission shaft located in the drying area, and rollers corresponding to the guide rail are respectively provided at both ends of the flap, and the flap in the conveying unit is in contact with the guide rail through the rollers.

[0012] Compared with the prior art, the conveying device for a flap circulation type tea dryer described in the present invention has the following beneficial effects: since an anti-flipping mechanism is provided in the flap unloading area, the knocking teeth in the anti-flipping positioning block are used to support the flap that moves synchronously with the chain, which can not only effectively reduce the sound generated by the impact when the flap is flipped, but also prevent the flap from clamping the tea and bridging the tea in the flap unloading area; at the same time, since a plurality of groups of parallel conveying units are provided in the drying box, and the sprockets and chains in the conveying units are all arranged in the drying area in the drying box, and a fixed guide plate that is in contact with the flap is also provided in the drying area, not only can the tea conveying demand be met, but also the heat energy loss in the drying box can be effectively reduced, thereby improving the utilization rate of hot air and reducing the tea processing cost, so as to meet the use requirements of the tea dryer. It can be seen that the conveying device described in the present invention can greatly reduce the sound generated by the impact when the flap is turned over by configuring the anti-turnover mechanism, which can not only effectively reduce the noise, but also prevent the reverse deadlock of the driving motor caused by the flap being stuck, and effectively avoid the phenomenon of tea leaves being clamped, bridged, and hung on the flap. In addition, the configured conveying unit can not only meet the transportation needs of tea leaves, but also effectively reduce the heat loss in the drying box. Its overall structure is simple and easy to install, which can meet the use requirements of the tea dryer and is suitable for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the structure of the conveying device of the present invention; Figure 2 yes Figure 1 A schematic diagram of the enlarged local structure at point A in the middle; Figure 3 It is a schematic cross-sectional structure diagram of the conveying device of the present invention; Figure 4 It is a structural schematic diagram of the anti-flip positioning block of the present invention.

[0015] As shown in the figure: 1-drying box, 11-box body, 12-partition, 13-drainage area, 14-drying area, 15-flip plate unloading area, 2-conveyor unit, 21-sprocket, 22-chain, 23-flip plate, 24-drive shaft, 25-bearing seat, 3-anti-turnover mechanism, 31-anti-turnover positioning block, 32-positioning screw, 33-knocking tooth, 331-inclined plane, 332-straight plane, 4-fixed guide plate, 5-guide rail. DETAILED DESCRIPTION

[0016] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0017] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", etc. quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] It should be noted that the term "comprise" or any other variation is intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus. Example 1

[0020] like Figures 1 to 4 As shown, the present embodiment provides a conveying device for a flap circulation type tea dryer, comprising a drying box 1, wherein the drying box 1 comprises a box body 11 and a partition 12 arranged in the box body 11, wherein the box body 11 is divided into a drainage area 13 and a drying area 14 by the partition 12; a plurality of parallelly arranged conveying units 2 are arranged in the drying box 1, wherein the conveying units 2 comprise a sprocket 21, a transmission mechanism for driving the sprocket 21 to rotate, a chain 22 arranged on the sprocket 21, and a plurality of flaps 23 moving synchronously with the chain 22, wherein one side edge of the flap 23 is rotatably connected to the chain 22; and a flap unloading area 15 is provided in the drying area 14 in the drying box 1, wherein the flap unloading area 15 is arranged in front of the sprocket 21 on the side close to the output end of the conveying unit 2, and an anti-flipping mechanism 3 is provided in the flap unloading area 15, wherein the anti-flipping mechanism 3 is used to support the flap 23 moving synchronously with the chain 22.

[0021] Among them, the anti-rollover mechanism 3 includes an anti-rollover positioning block 31 and a positioning screw 32. The anti-rollover positioning block 31 is fixed to the partition 12 in the box body 11 by the positioning screw 32, and is located between the chain 22 rotatably connected to the sprocket 21; a plurality of serrated knocking teeth 33 are provided on the surface of the anti-rollover positioning block 31, and the anti-rollover mechanism 3 is in contact and connected with the flap 23 above the flap unloading area 15 through the knocking teeth 33.

[0022] The transmission mechanism includes a transmission shaft 24 and a bearing seat 25. Through holes corresponding to the transmission shaft 24 are respectively provided on the sides of the partition 12 and the box body 11. 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, and its two ends extend outward to the outside of the box body 11 through the through holes in the box body 11; the sprocket 21 is fixed on the transmission shaft 3 located on the inner side of the partition 12, and the transmission mechanism drives the sprocket 21 to rotate synchronously with the transmission shaft 24 through the transmission shaft 24.

[0023] Furthermore, a conveying device for a flap circulation type tea dryer described in this embodiment is adopted, and the knocking tooth 33 is a sawtooth structure composed of an inclined plane 331 and a straight plane 332, and the length of the inclined plane 331 on each knocking tooth 33 is greater than the height of the straight plane 332, and a support cavity is formed between two adjacent knocking teeth 33 by the inclined plane 331 and the straight plane 332, and the knocking tooth 33 can be in contact and connected with the flap 23 through the support cavity.

[0024] Furthermore, a conveying device for a flap circulation type tea dryer described in this embodiment is adopted, and a fixed guide plate 4 is also provided in the drying area 14 in the box body 11, and the fixed guide plate 4 is arranged in an arc-shaped structure. The fixed guide plate 4 is located behind the sprocket 21 on the output end side of the conveying unit 2, and the fixed guide plate 4 is in contact and connected with the flap 23 in the conveying unit 2. Example 2

[0025] This embodiment is based on the embodiment 1. In order to improve the stability of the flap 23 in the conveying unit 2 during the synchronous movement with the chain 22, a conveying device for a flap circulation type tea dryer described in this embodiment is adopted. A guide rail 5 is also provided on the partition 12. The guide rail 5 is arranged on the inner side surface of the partition 12 on both sides of the transmission shaft 24 in the drying area 14. Rollers corresponding to the guide rail 5 are respectively provided at both ends of the flap 23. The flap 23 in the conveying unit 2 is contacted and connected with the guide rail 5 through the rollers. The guide rail 5 also provided on the partition 12 is used to support the flap 23. In this way, the stability of the flap 23 during the synchronous movement with the chain 22 can be improved.

[0026] In addition, in order to enable the flap 23 to slide smoothly on the anti-flip positioning block 31 in the anti-flip mechanism 3 and avoid damage to the flap 23 due to impact, and at the same time, to reduce the friction between the knocking tooth 33 and the flap 23, the top of the knocking tooth 33 is also provided with an arc transition structure, and the arc transition structure at the top of the knocking tooth 33 is used to contact the flap 23, so that the problem of damage to the flap 23 can be avoided, so that the conveying unit 2 can run more smoothly.

[0027] The conveying device for the flap circulation type tea dryer described in the present invention is adopted. Since an anti-turnover mechanism 3 is provided in the flap unloading area 15, the knocking teeth 33 in the anti-turnover positioning block 31 are used to support the flap 23 that moves synchronously with the chain 22, which can not only effectively reduce the sound generated by the impact when the flap is turned over, but also prevent the flap 23 from clamping tea and bridging at the flap unloading area 15; at the same time, since a plurality of groups of parallel conveying units 2 are provided in the drying box 1, and the conveying unit 2 is powered by the motor installed on the outside of the drying box, the conveying unit 2 arranged in the drying box can be driven to operate normally, and the sprocket 21 and the chain 22 in the conveying unit 2 are both arranged in the drying area 14 in the drying box, and a fixed guide plate 4 in contact with the flap 23 is also provided in the drying area 14, which can not only meet the tea transportation needs, but also effectively reduce the heat energy loss in the drying box, thereby improving the utilization rate of hot air and reducing the tea processing cost, so as to meet the use requirements of the tea dryer.

[0028] In summary, the conveying device of the present invention can greatly reduce the sound caused by the impact of the flap 23 when it is turned over by the anti-turnover mechanism 3, which can not only effectively reduce the noise, but also prevent the reverse deadlock of the driving motor caused by the flap being stuck, and effectively avoid the phenomenon of tea leaves being clamped, bridged and hung on the flap 23. In addition, the conveying unit 2 can not only meet the transportation needs of tea leaves, but also effectively reduce the heat loss in the drying box. Its overall structure is simple and easy to install, which can meet the use needs of the tea dryer and is suitable for promotion and application.

[0029] The conveying device of the present invention is not described in detail in this specification because the multiple sets of parallel conveying units 2 arranged in the drying box 1 are well-known technical solutions in the prior art. Other unexplained aspects of the present invention are all conventional technologies known to those skilled in the art.

[0030] The protection scope of the present invention is not limited to the technical solutions disclosed in the specific implementation methods. The above description is only a preferred implementation method of the present invention and does not limit the present invention. Any minor modifications, equivalent substitutions and improvements made according to the technical solutions of the present invention should be included in the protection scope of the technical solutions of the present invention.

Claims

1. A conveying device for a flap circulation tea drying machine, comprising a drying box (1), wherein the drying box (1) comprises a box body (11) and a partition (12) arranged in the box body (11), wherein the box body (11) is divided into a drainage area (13) and a drying area (14) by the partition (12); characterized in that: A plurality of conveying units (2) arranged in parallel are arranged in the drying box (1), the conveying unit (2) comprising a sprocket (21), a transmission mechanism for driving the sprocket (21) to rotate, a chain (22) arranged on the sprocket (21), and a plurality of flaps (23) moving synchronously with the chain (22), one side of the flap (23) being rotatably connected to the chain (22); and a flap unloading area (15) is arranged in the drying area (14) in the drying box (1), the flap unloading area (15) being arranged in front of the sprocket (21) on the side close to the output end of the conveying unit (2), and an anti-turnover mechanism (3) is arranged in the flap unloading area (15), the anti-turnover mechanism (3) being used to support the flap (23) moving synchronously with the chain (22).

2. A conveying device for a flap circulation tea drying machine according to claim 1, characterized in that: The anti-turnover mechanism (3) comprises an anti-turnover positioning block (31) and a positioning screw (32); the anti-turnover positioning block (31) is fixed to a partition (12) in a box body (11) by means of the positioning screw (32) and is located between chains (22) rotatably connected to a sprocket wheel (21); a plurality of sawtooth-shaped knocking teeth (33) are provided on the surface of the anti-turnover positioning block (31); the anti-turnover mechanism (3) is in contact and connection with a flap (23) above a flap unloading area (15) by means of the knocking teeth (33).

3. A conveying device for a flap circulation tea drying machine according to claim 2, characterized in that: The knocking teeth (33) are formed into a sawtooth structure by an inclined plane (331) and a straight plane (332), and the length of the inclined plane (331) on each knocking tooth (33) is greater than the height of the straight plane (332), and a support cavity is formed between two adjacent knocking teeth (33) by the inclined plane (331) and the straight plane (332), and the knocking teeth (33) can be in contact with and connected to the flap (23) through the support cavity.

4. A conveying device for a flap circulation tea drying machine according to claim 3, characterized in that: The top of the striking tooth (33) is also provided with an arc transition structure.

5. The conveying device for a flap circulation tea drying machine according to claim 1, characterized in that: The transmission mechanism comprises a transmission shaft (24) and a bearing seat (25); through holes corresponding to the transmission shaft (24) are respectively provided on the side surfaces of the partition (12) and the housing (11); the bearing seat (25) is installed in the drainage area (13) and fixed on the outer side surface of the partition (12); the transmission shaft (24) passes through the through hole in the partition (12) and is rotatably connected with the bearing seat (25), and its two ends extend outwardly to the outside of the housing (11) through the through holes in the housing (11); the sprocket (21) is fixed on the transmission shaft (3) located on the inner side surface 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. The conveying device for a flap circulation tea drying machine according to claim 1, characterized in that: A fixed guide plate (4) is also provided in the drying area (14) in the box body (11); the fixed guide plate (4) is arranged in an arc-shaped structure; the fixed guide plate (4) is located behind the sprocket (21) on the output end side of the conveying unit (2); and the fixed guide plate (4) is in contact with and connected to a flap (23) in the conveying unit (2).

7. The conveying device for a flap circulation tea drying machine according to claim 1, characterized in that: A guide rail (5) is also provided on the partition (12), and the guide rail (5) is arranged on the inner side surface of the partition (12) on both sides of the transmission shaft (24) located in the drying area (14). Rollers corresponding to the guide rail (5) are respectively provided at both ends of the flap (23), and the flap (23) in the conveying unit (2) is in contact with the guide rail (5) via the rollers.

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