Cordyceps militaris cultivation device

Abstract

The invention relates to a cordyceps militaris cultivation device which comprises a cultivation frame and a cultivation box, the cultivation frame comprises a plurality of sets of independent cultivation chambers, and each set of cultivation chambers are divided into cultivation cavities of a plurality of levels according to cultivation stages; an inoculated culture medium is contained in the culture box; each group of cultivation chambers is internally provided with an independent transfer mechanism, the transfer mechanisms control the cultivation boxes to gradually transfer from low-grade cultivation cavities to high-grade cultivation cavities according to needs, each cultivation cavity is internally provided with an independent illumination system, and the cultivation cavities of the same grade are internally provided with the same ventilation system; the cultivation boxes in the static state and the corresponding cultivation cavities form closed or sealed spaces; efficient partitioned independent cultivation management is achieved, environment parameters such as illumination, temperature and humidity can be better controlled on the basis of the growth stage of mycelia, high-yield and high-quality cordyceps militaris can be obtained, and the growth processes of the mycelia in different cultivation boxes can be compared and observed more visually.

Description

TECHNICAL FIELD

[0001] The present application relates to the cultivation of Cordyceps militaris technical field, specifically relates to a kind of Cordyceps militaris cultivation device. BACKGROUND

[0002] Cordyceps militaris also known as North Cordyceps sinensis, North Cordyceps sinensis;It has the effects of improving human immune function, anticancer, antibacterial, anti-fatigue, anti-aging, anti-convulsion, hypoxia tolerance, etc., and also has the effects of weight loss, slimming, beauty, etc.;With the deepening understanding of Cordyceps, the market demand for Cordyceps is increasing, due to the limitation of natural resources, Cordyceps sinensis is in short supply in the market, and artificial cultivation of Cordyceps militaris as a substitute for wild Cordyceps sinensis is very necessary. At present, the artificial cultivation technology of Cordyceps militaris has become mature, and the cultivation of Cordyceps militaris needs to go through strain breeding, slope strain preparation, liquid strain production, disinfection, inoculation, basic cultivation, harvesting and other stages. In the prior art, it is put in a glass bottle, and the glass bottle is directly placed in a temperature control cultivation room for management. Because the environment required by Cordyceps militaris at different growth stages is different, the temperature control cultivation room can only uniformly control the overall environmental parameters according to the growth stage of the same batch of Cordyceps militaris, and cannot carry out continuous cultivation of different batches of Cordyceps militaris. When there are individual differences in growth cycle, only different temperature control cultivation rooms can be manually transferred or the different individuals are abandoned, which increases labor cost and reduces product yield. Therefore, a Cordyceps militaris cultivation device is needed to solve the above problems. SUMMARY

[0003] The purpose of the present application is to provide a Cordyceps militaris cultivation device to solve the problems mentioned in the background art.

[0004] To solve the above technical problems, the present application adopts the following technical scheme: a Cordyceps militaris cultivation device, comprising: a cultivation rack, the cultivation rack comprises a plurality of independent cultivation chambers, each group of cultivation chambers is divided into a plurality of levels of cultivation cavities according to the cultivation stage; a cultivation box containing inoculated culture medium; An independent transfer mechanism is arranged in each group of cultivation chambers, and the transfer mechanism is configured to control the cultivation box to gradually transfer from a lower level cultivation cavity to a higher level cultivation cavity as needed; and An independent lighting system is arranged in each cultivation cavity, and the same level cultivation cavities are provided with the same ventilation system, and the cultivation box in a stationary state forms a closed or sealed space with the corresponding cultivation cavity.

[0005] Preferably, each of the cultivation cavities comprises a first cavity and a second cavity, the second cavities of each group of the cultivation chambers are connected to each other, the transfer mechanism controls the cultivation box to move from a lower-level second cavity to a higher-level second cavity, and the cultivation box in the static state forms a closed or sealed space with the corresponding second cavity; The first cavities of each group of the cultivation chambers are independent of each other, and the first cavities are partially connected to the second cavities, the second cavities are used for heat exchange and air exchange between the partial connection and the corresponding second cavities; The first cavities of different groups of the cultivation chambers at the same level are connected through ventilation pipes, and the ventilation pipes are used to transport gas with corresponding humidity and temperature into each of the corresponding first cavities.

[0006] Preferably, a plurality of groups of cultivation chambers are arranged in a stacked manner along the vertical direction in the cultivation rack, and cultivation cavities of the same level of each group of the cultivation chambers are arranged in the same column.

[0007] Preferably, a plurality of cultivation barrels are installed in the cultivation box, each of the cultivation barrels comprises a base and an outer barrel, the base is fixedly installed in the cultivation box, the base is used to hold inoculated culture medium, the outer barrel is sleeved on the base, and the outer barrel is configured to move upward synchronously when the cultivation box moves from a lower-level second cavity to a higher-level second cavity, thereby gradually increasing the internal space of the cultivation barrel.

[0008] Preferably, the second cavities of the cultivation chambers are provided with stepped channels at the bottom, the stepped channels comprise a plurality of levels of planar channels, the planar channels are smoothly connected between adjacent planar channels, and each level of the planar channels is correspondingly arranged at the bottom of each level of the second cavities, and the height of the corresponding planar channel increases with the increase of the level of the second cavity. The top of each of the outer barrels is provided with a limiting sliding block, the limiting sliding block is configured to slide along the stepped channel and drive the outer barrel to move upward synchronously with the change of the height of the planar channel.

[0009] Preferably, a partition plate with a through hole is arranged between each of the planar channels and the second cavity, and an elastic sealing ring is arranged at the opening of the top of the outer barrel; when the limiting sliding block is installed in the planar channel, the elastic sealing ring at the top of the corresponding outer barrel is attached to the partition plate, and only the through hole covered by the opening of the outer barrel is connected to the second cavity.

[0010] Preferably, each level of the planar channels is provided with a through hole at each of the corresponding outer barrels in the corresponding first cavity only in the working state, and the number of the through holes arranged in each of the corresponding outer barrels in the planar channel increases gradually with the increase of the level of the first cavity.

[0011] Preferably, an annular elastic membrane is provided between the bottom of the outer cylinder and the base. The annular elastic membrane is used to seal the gap between the bottom of the outer cylinder and the base. At the same time, the annular elastic membrane is configured to pull the outer cylinder downward to the initial state in its natural state.

[0012] Preferably, the two sides of the incubation box perpendicular to the incubation chamber are configured as telescopic plate structures, the telescopic plate structures are configured to extend and retract in the vertical direction, and the top of the telescopic plate structures is always in contact with the planar channel.

[0013] Preferably, each group of cultivation chambers has a feeding tray on the side of the lower-level cultivation chamber and a discharging tray on the side of the higher-level cultivation chamber, and the transfer mechanism controls the movement range of the cultivation box to cover the feeding tray and the discharging tray.

[0014] Beneficial effects: This invention features multiple independent cultivation chambers, each divided into several levels according to the cultivation stage. With the help of a transfer mechanism, the cultivation chambers can be gradually transferred from lower to higher levels as needed, based on the mycelial growth stage. This achieves efficient, independent regional cultivation management, allowing for better control of environmental parameters such as light, temperature, and humidity based on the mycelial growth stage, resulting in high-yield and high-quality Cordyceps militaris. Furthermore, it allows for more direct comparison and observation of the mycelial growth process in different cultivation chambers, facilitating flexible cultivation management.

[0015] In this invention, a retractable cultivation tube is used, and the internal space of the cultivation tube can be increased synchronously as it is gradually transferred from a lower-level cultivation chamber to a higher-level cultivation chamber. The physical space is dynamically adjusted based on the growth stage of the mycelium. During the mycelium cultivation period, it is in a compressed state, creating a compact and sealed space. As the growth process progresses, the cultivation tube is gradually stretched layer by layer, providing just the right vertical growth space for the Cordyceps militaris in each cultivation tube, thus achieving phased optimization of the internal environment of the cultivation tube. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the Cordyceps militaris cultivation device of the present invention; Figure 2 This is a front view of the Cordyceps militaris cultivation device of the present invention; Figure 3 This is a rear view of the Cordyceps militaris cultivation device of the present invention; Figure 4 This is a schematic diagram of the incubator structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of a single-unit culture chamber of the present invention; Figure 6 This is a plan view of the interior of a single-unit cultivation chamber of the present invention; Figure 7 This is a schematic diagram of the stepped channel structure of the present invention; Figure 8 This is a schematic diagram of the structure of the single-unit incubation chamber of the present invention; Figure 9 This is a schematic diagram of the structure of the cultivation tube of the present invention; Figure 10 This is a schematic diagram of the internal structure of the cultivation tube of the present invention; Numbered in the diagram: 1. Cultivation rack; 2. Cultivation box; 21. Transparent sheet; 22. Blackout curtain; 23. Cultivation cylinder; 231. Base; 232. Outer cylinder; 233. Limiting slider; 234. Annular elastic membrane; 24. Mounting hole; 25. Groove; 26. Baffle; 27. Elastic sealing ring; 3. Cultivation chamber; 4. Cultivation cavity; 41. First cavity; 42. Second cavity; 5. Illumination system; 61. Air inlet pipe; 612. Air outlet pipe; 62. Air inlet end; 63. Air outlet end; 7. Feed tray; 8. Discharge tray; 9. Conveyor belt; 10. Stepped channel; 101. Planar channel; 102. Partition; 103. Through hole. Detailed Implementation

[0017] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0018] Example: Figures 1-3 As shown, a Cordyceps militaris cultivation device includes a cultivation rack 1 and a cultivation box 2. The cultivation rack 1 includes several sets of independent cultivation chambers 3, and each set of cultivation chambers 3 is divided into several levels of cultivation cavities 4 according to the cultivation stage. The cultivation box 2 contains the culture medium after inoculation. Each set of cultivation chambers 3 is equipped with an independent transfer mechanism, which is configured to control the cultivation box 2 to gradually transfer from the lower level cultivation cavity 4 to the higher level cultivation cavity 4 as needed. Each cultivation cavity 4 is equipped with an independent lighting system 5, and the same level of cultivation cavity 4 is equipped with the same ventilation system. The cultivation box 2 in a static state and the corresponding cultivation cavity 4 form a closed or sealed space.

[0019] by Figures 1-2For example, a culture rack 1 has multiple sets of culture chambers 3 stacked vertically along its interior. Each set of culture chambers 3 has multiple culture cavities 4 arranged horizontally. The leftmost culture cavity 4 is moved to the first level of culture cavity 4, and so on, resulting in the second, third, and fourth level culture cavities 4, etc., with culture cavities 4 of the same level arranged in the same row. Each culture cavity 4 includes a first cavity 41 and a second cavity 42. The second cavities 42 of each set of culture chambers 3 are interconnected. The transfer mechanism controls the culture box 2 to move from the lower level second cavity 42 to the higher level second cavity 42, and the stationary culture box 2 forms a closed or sealed space with the corresponding second cavity 42. The first cavities 41 of each set of culture chambers 3 are independent of each other, and the first cavity 41 and the second cavity 42 are partially connected. The second cavity 42 is used for heat exchange and airflow exchange between the partially connected part and the corresponding second cavity 42. refer to Figure 3 As shown, the first chambers 41 of the same level in different group cultivation chambers 3 are connected by ventilation ducts, and valves can be installed at the connection between the ventilation ducts and each first chamber 41 to flexibly control the airflow to flow into the designated first chamber 41 as needed. The ventilation ducts are used to deliver gas with corresponding humidity and temperature to each corresponding first chamber 41.

[0020] In use, after inoculation, the incubator 2 is placed into the first-stage incubation chamber 4. At this time, all the first-stage incubation chambers 4 on the incubator rack 1 are placed into the first-stage incubation chamber 4. Gas with suitable temperature and humidity is introduced into the second chamber 42 of the first-stage incubation chamber 4 through the ventilation duct, so as to... Figure 2 For example, the gas flow in the first chamber 41 of the first stage is shown. The left side of the first chamber 41 is the air inlet 62 and the right side is the air outlet 63. Suitable gas is delivered to each second chamber 42 of the first stage through the air inlet pipe 61 and input from the air inlet 62. The humidity and temperature in the corresponding first chamber 41 are regulated by the flow and heat exchange of the gas in the first chamber 41. The gas flows out from the air outlet 63 and the matching air outlet pipe 612. The temperature and humidity of the introduced gas are controlled externally. Since the mycelial growth stage in the first stage requires protection from light, the independent light system 5 can be omitted in the first-stage cultivation chamber 4 or the independent light system 5 can be turned off. When entering the next stage of color change, the incubator 2 in the first-level incubation chamber 4 can be transported to the second-level incubation chamber 4 through the transfer mechanism. At this time, the incubator 2 that has completed the vegetative growth stage can be transferred as needed through manual observation. By managing the zones independently, the different needs can be met. The incubator 2 transferred to the second-level incubation chamber 4 is similarly managed by temperature and humidity control through the corresponding ventilation ducts and the first chamber 41. It can also be observed as needed through the independent lighting system 5. This process is repeated until the fruiting body stops growing and reaches maturity. Finally, the mature body is output through the fourth-level incubation chamber 4. With the above-mentioned cultivation rack 1, Cordyceps militaris of the same or different batches can be flexibly cultivated in different cultivation chambers 3, and can be automatically transferred with the transfer mechanism. It can be combined with the existing monitoring system to realize remote automated operation, reduce contact with managers, avoid the introduction of miscellaneous bacteria, and ensure the cleanliness of the cultivation environment to the maximum extent. By adjusting the differences in parameters such as humidity and temperature in different cultivation chambers 3, the progress can be intuitively obtained by observing the position of the incubator in the corresponding cultivation chamber 3. The optimal parameter data can also be screened during cultivation.

[0021] In another embodiment, reference Figures 1-3 As shown, each group of cultivation chambers 3 has a feeding tray 7 on one side of the lower-level cultivation chamber 4 and a discharging tray 8 on one side of the higher-level cultivation chamber 4. The transfer mechanism controls the movement range of the cultivation box 2 to cover the feeding tray 7 and the discharging tray 8, improving the convenience of feeding and discharging.

[0022] In another embodiment, reference Figure 2 As shown, the incubator 2 is set as a transparent plate 21 parallel to the side wall of the incubation chamber 3, and is equipped with a light-blocking curtain 22. The light-blocking curtain 22 can ensure the independence of the internal environment of the incubator 2, and can also be opened to observe the growth of the incubator 2 as needed.

[0023] In one embodiment, a conveyor belt 9 is provided as a transfer mechanism. The incubation box 2 is placed on the conveyor belt 9 on the feeding tray 7. The conveyor belt 9 is started to transport the incubation box 2 step by step until it matures and is transported to the discharge tray 8 for subsequent processing by the manager.

[0024] In one embodiment, reference Figure 4As shown, the incubation box 2 contains multiple incubation cylinders 23. Each incubation cylinder 23 includes a base 231 and an outer cylinder 232. The base 231 is fixedly installed inside the incubation box 2 and is used to hold the culture medium after inoculation. The outer cylinder 232 is fitted onto the base 231. The outer cylinder 232 is configured to move upward synchronously as the incubation box 2 moves from the lower level second cavity 42 to the higher level second cavity 42, gradually increasing the internal space of the incubation cylinder 23. The physical space can be dynamically adjusted based on the growth stage of the mycelium. In the early stage, a low and sealed environment can be constructed to maintain a stable high humidity and high carbon dioxide concentration. As the growth process progresses, the incubation cylinders 23 are gradually raised layer by layer, providing just the right vertical growth space for the Cordyceps militaris in each incubation cylinder 23, thus realizing the staged optimization of the internal environment of the incubation cylinder 23. In one specific embodiment, a stepped channel 10 structure is designed to cooperate with the above-described transfer operation to achieve the gradual upward movement of the outer cylinder 232, as shown in the reference. Figure 2 and Figures 7-8 As shown, a stepped channel 10 is provided at the bottom of each second cavity 42 in the cultivation chamber 3. The stepped channel 10 includes several levels of planar channels 101, which are smoothly connected. Each level of planar channel 101 is correspondingly located at the bottom of each level of the second cavity 42, and the height of the corresponding planar channel 101 increases with the level of the second cavity 42. (Reference) Figure 9 As shown, each outer cylinder 232 is provided with a limit slider 233 at its top. The limit slider 233 is configured to slide along the stepped channel 10 and synchronously drive the outer cylinder 232 to move upward as the height of the planar channel 101 changes.

[0025] Several mounting holes 24 are provided inside the incubator 2. The base 231 is inserted into the mounting holes 24 for fixation to ensure that the base 231 remains stable during subsequent movement, and only the outer cylinder 232 moves upward. After installing an appropriate number of incubator cylinders 23 as needed, the incubator 2 is transferred to the first-level incubation chamber 4. At this time, the limiting sliders 233 at the top of each incubator cylinder 23 will be engaged in the stepped channel 10 to ensure that the limiting sliders 233 can slide along the stepped channel 10 and remain engaged in the vertical direction. When moving from the lower-level planar channel 101 to the higher-level planar channel 101, the higher-level planar channel 101 will exert an upward force on the outer cylinder 232 through the limiting sliders 233, forcing the outer cylinder 232 to move upward.

[0026] Furthermore, telescopic plate structures are provided on two sides of the incubator 2 perpendicular to the incubation chamber 3. These telescopic plate structures are configured to extend and retract vertically, and the top of the telescopic plate structures is always in contact with the planar channel 101; (Reference) Figure 4As shown, grooves 25 are provided on two sides of the incubator 2 perpendicular to the incubation chamber 3. Baffles 26 are inserted into the grooves 25. The bottom of the baffles 26 is connected to the inner wall of the grooves 25 by springs, forming a telescopic plate structure. When in the lower second cavity 42, since the lower planar channel 101 is at the bottom, the baffles 26 compress the springs and retract into the grooves 25. A flexible structure such as a rubber strip can be provided on the top of the baffles 26 to fill the gap between the two. When transferring to the higher second cavity 42, the baffles 26 can be automatically extended out of the grooves 25 by the action of the springs, so that the top of the baffles 26 is always in contact with the top surface of the second cavity 42, thereby ensuring that each incubator 2 is in a relatively independent space.

[0027] In one embodiment, reference Figure 10 As shown, an annular elastic membrane 234 is provided between the bottom of the outer cylinder 232 and the base 231. The annular elastic membrane 234 is used to seal the gap between the bottom of the outer cylinder 232 and the base 231, ensuring that the internal environment of the cultivation cylinder 23 is controlled in one direction. At the same time, the annular elastic membrane 234 is configured to pull the outer cylinder 232 downward to the initial state in its natural state. When the mature cordyceps is output from the cultivation chamber 3, since the top of each cultivation cylinder 23 is not under tension, the elasticity of the annular elastic membrane 234 will pull the outer cylinder 232 downward, exposing the mature cordyceps so that the manager can harvest it.

[0028] In one embodiment, reference Figures 5-7 As shown, a partition 102 with through holes 103 is provided between each planar channel 101 and the second cavity 42, for reference. Figure 4As shown, an elastic sealing ring 27 is provided around the top opening of the outer cylinder 232; when the limiting slider 233 is installed into the planar channel 101, the corresponding elastic sealing ring 27 at the top of the outer cylinder 232 fits against the partition plate 102, and is connected to the second cavity 42 only through the through hole 103 covered by the opening of the outer cylinder 232; and each level of the planar channel 101 only has through holes 103 at the corresponding outer cylinder 232 in the first cavity 41 during the working state, and the number of through holes 103 in the planar channel 101 and at the corresponding outer cylinder 232 increases with the level of the first cavity 41; compared with the conventional cultivation method, it eliminates the need for the top of each cultivation cylinder 23 In the process of coating the incubator, after inoculation, the incubator 2 is transferred to the first-stage incubation chamber 4. With the action of the limiting slider 233 and the planar channel 101, the top of the incubator 23 can be made to fit against the partition 102, and further sealed by the action of the elastic sealing ring 27. The top of the incubator 23 is sealed by the partition 102. At this time, the number of through holes 103 at the corresponding positions of the partition 102 is set according to the required degree of sealing at different stages, so as to control the ventilation and airflow exchange degree as needed. As the incubator 2 is transferred, the ventilation degree can be automatically switched, and it can be reused. Compared with the coating process, it saves costs and improves efficiency.

[0029] The embodiments of the present invention have been described in detail above with reference to the examples. However, the present invention is not limited to the above embodiments. For those skilled in the art, after learning the contents described in the present invention, several equivalent changes and substitutions can be made without departing from the principle of the present invention. These equivalent changes and substitutions should also be considered to fall within the protection scope of the present invention.

Claims

1. A Cordyceps militaris cultivation device, characterized in that, include: The culture rack includes several groups of independent culture chambers, and each group of culture chambers is divided into several levels of culture cavities according to the culture stage. An incubator containing the culture medium after inoculation; Each incubation chamber is equipped with an independent transfer mechanism, which is configured to control the incubator to gradually transfer from a lower-level incubation chamber to a higher-level incubation chamber as needed. as well as Each of the culture chambers is equipped with an independent lighting system, and the culture chambers of the same level are equipped with the same ventilation system. When the culture box is stationary, it forms a closed or sealed space with the corresponding culture chamber.

2. The Cordyceps militaris cultivation device according to claim 1, characterized in that: Each of the aforementioned cultivation chambers includes a first chamber and a second chamber. The second chambers of each group of cultivation chambers are interconnected. The transfer mechanism controls the cultivation box to move from a lower-level second chamber to a higher-level second chamber. The cultivation box in a stationary state forms a closed or sealed space with the corresponding second chamber. The first cavity of each group of incubation chambers is independent of each other, and the first cavity and the second cavity are partially connected. The second cavity is used for heat exchange and airflow exchange between the second cavity and the corresponding second cavity through the partial connection. The first chambers of the same level in different groups of cultivation chambers are connected by ventilation ducts, which are used to deliver gases with corresponding humidity and temperature to each corresponding first chamber.

3. The Cordyceps militaris cultivation device according to claim 2, characterized in that: The culture rack has multiple sets of culture chambers stacked vertically, and the same level of culture cavities in each set of culture chambers are arranged in the same row.

4. The Cordyceps militaris cultivation device according to claim 2, characterized in that: The incubator contains multiple incubation cylinders, each of which includes a base and an outer cylinder. The base is fixedly installed inside the incubator and is used to hold the culture medium after inoculation. The outer cylinder is fitted onto the base and is configured to move synchronously upward as the incubator moves from a lower-level second cavity to a higher-level second cavity, thereby gradually increasing the internal space of the incubator.

5. The Cordyceps militaris cultivation device according to claim 4, characterized in that: Each of the second cavities in the cultivation chamber is provided with a stepped channel at the bottom. The stepped channel includes several levels of planar channels, which are smoothly connected. Each level of planar channel is located at the bottom of the second cavity at each level, and the height of the corresponding planar channel increases as the level of the second cavity increases. Each of the outer cylinders is provided with a limit slider at its top. The limit slider is configured to slide along the stepped channel and synchronously drive the outer cylinder to move upward as the height of the planar channel changes.

6. The Cordyceps militaris cultivation device according to claim 5, characterized in that: Each of the planar channels is provided with a partition plate with a through hole between it and the second cavity. An elastic sealing ring is provided around the top opening of the outer cylinder. When the limiting slider is installed into the planar channel, the corresponding elastic sealing ring at the top of the outer cylinder fits into the partition plate and communicates with the second cavity only through the through hole covered by the opening of the outer cylinder.

7. The Cordyceps militaris cultivation device according to claim 6, characterized in that: Each level of the planar channel has through holes only at the corresponding outer cylinders within the first cavity during operation. Furthermore, as the level of the first cavity increases, the number of through holes at the corresponding outer cylinders within the planar channel increases progressively.

8. The Cordyceps militaris cultivation device according to claim 4, characterized in that: An annular elastic membrane is provided between the bottom of the outer cylinder and the base. The annular elastic membrane is used to seal the gap between the bottom of the outer cylinder and the base. At the same time, the annular elastic membrane is configured to pull the outer cylinder downward to the initial state in its natural state.

9. The Cordyceps militaris cultivation device according to claim 5, characterized in that: The incubator has two sides perpendicular to the incubation chamber configured as telescopic plate structures, which are designed to extend and retract in the vertical direction, and the top of the telescopic plate structures is always in contact with the planar channel.

10. A Cordyceps militaris cultivation device according to claim 1 or 3, characterized in that: Each group of cultivation chambers has a feeding tray on the side of the lower-level cultivation chamber and a discharging tray on the side of the higher-level cultivation chamber. The transfer mechanism controls the movement range of the cultivation box to cover the feeding tray and the discharging tray.

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