A device for preparing culture medium for Poria cocos strain

Abstract

This invention belongs to the field of culture medium preparation technology, specifically a device for preparing a culture medium for Poria cocos spawn. The device includes a frame with a hopper mounted on it. One side of the hopper has a discharge pipe and an auxiliary bagging sleeve for bagging. The other side of the hopper has an inoculation channel generating component. The inoculation channel generating component includes a first auger rotatably mounted inside the discharge pipe. The first auger has a hollow central shaft, with one end of the central shaft extending out of the hopper and communicating with a feed pipe. The feed pipe is clearance-fitted with the central shaft. An extrusion tube is positioned above the feed pipe. This invention significantly improves the efficiency of culture medium bagging and inoculation. It also provides a slow-release effect for nutrients, continuously supplying nutrition for mycelial growth. Furthermore, because the extrusion component remains inside the bag during bagging, there is no need for careful handling to prevent channel collapse after the stick is pulled out, further facilitating automated inoculation.

Description

Technical Field

[0001] This invention relates to the field of culture medium preparation technology, and in particular to a device for preparing culture medium for Poria cocos strain. Background Technology

[0002] The existing culture medium is generally prepared by weighing and mixing pine sawdust, wheat grains, wheat bran, gypsum, superphosphate, sugar, and urea, and then sterilizing it.

[0003] The culture medium then needs to be bagged; for example, CN202411009427.8 A kind of mushroom cultivation equipment; which can conveniently bag the culture medium, and then insert rods, seal and send it into an autoclave for sterilization;

[0004] After sterilization, allow the mixture to cool naturally before inoculation. When inoculating, remove the previous insert and place the inoculum into the hole formed by the middle insert.

[0005] By creating channels in the mushroom bag, the spawn can penetrate deep into the culture medium, preventing mycelium from growing only on the surface and improving sterilization efficiency during high-temperature sterilization. However, inserting and removing the sticks reduces efficiency, and after removing the sticks, the mushroom bag needs to be kept free from pressure to prevent the channels from collapsing. Inoculation must also be carried out in a sterile environment. These two conditions further restrict the convenience of inoculation and the difficulty of automating inoculation. Summary of the Invention

[0006] This invention provides a Poria cocos culture medium preparation device, which solves the shortcomings of the prior art, such as the reduced efficiency due to inserting and removing the sticks, the need to keep the bags from being compressed after removing the sticks so that the channels do not collapse, and the need to carry out inoculation in a sterile environment. These two conditions further restrict the convenience of inoculation and the difficulty of automating inoculation.

[0007] This invention provides the following technical solution:

[0008] A Poria cocos culture medium preparation device includes a frame, on which a hopper is installed. A discharge pipe and an auxiliary bagging sleeve for bagging are provided on one side of the hopper; an inoculation channel generation component is provided on the other side of the hopper.

[0009] The inoculation channel generating assembly includes a first auger rotatably disposed within the discharge pipe. The first auger has a hollow central shaft. The end of the central shaft away from the discharge cylinder passes through a hopper and communicates with a feeding pipe. The feeding pipe is clearance-fitted with the central shaft. An extrusion pipe is disposed above the feeding pipe. The extrusion pipe is connected to the feeding pipe through a guide pipe. A sealing assembly is disposed between the guide pipe and the extrusion pipe. The extrusion pipe is provided with a feeding assembly and an extrusion assembly. The feeding assembly is used to feed material into the extrusion pipe. The extrusion assembly is used to extrude and shape the material to form an extruded part. A pushing assembly is disposed within the feeding pipe.

[0010] In one possible implementation, the extrusion assembly includes a moving die disposed at one end of the extrusion tube and a fixed die at the other end. The moving die is axially movable toward the fixed die, thereby extruding and shaping the material between the fixed die and the moving die.

[0011] In one possible implementation, the feeding assembly includes a wheel frame rotatably mounted on a frame, the wheel frame being provided with a plurality of storage pipes, one of which, at one end, is connected to a hopper via a conveying pipe, a second auger is rotatably disposed inside the conveying pipe, a stop is provided on the side of the wheel frame away from the conveying pipe, the stop is provided with a clearance opening for avoiding the moving die, and the storage pipe is located between the moving die and the extrusion pipe.

[0012] In one possible implementation, a demolding assembly is further provided on one side of the fixed mold, including a demolding rod fixedly connected to the frame. The fixed mold is provided with a demolding hole adapted to the demolding rod, and the demolding rod and the demolding hole are movable relative to each other.

[0013] In one possible implementation, the sealing assembly includes a movable end that is axially movable relative to the extrusion tube, and the feed tube is provided with a clearance opening that mates with the movable end.

[0014] In one possible implementation, the fixed mold is fixed to the movable end.

[0015] In one possible implementation, the pushing assembly includes a pushing rod disposed within a feeding tube, the pushing rod being capable of reciprocating along the axial direction of the feeding tube.

[0016] In one possible implementation, the pusher includes a rod body and a rod head, the rod head being elastically connected to the rod body.

[0017] In one possible implementation, a synchronization pipe is provided between the feed pipe and the central shaft. One end of the synchronization pipe is connected to the feed pipe and the other end is connected to the central shaft. The synchronization pipe and the central shaft are in clearance fit. A through-hole is provided on the side of the synchronization pipe, and a drive wheel is rotatably provided at the through-hole.

[0018] In one possible implementation, the fixed mold and / or moving mold are provided with a rod in the middle to form a central through hole in the extruded part, and the fixed mold and / or moving mold are provided with a groove and / or a boss around the rod to form a boss and / or groove around the central through hole, so that lateral through holes are formed between the extruded parts and the lateral through holes communicate with the central through hole.

[0019] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the invention.

[0020] This invention eliminates the need for inserting and removing sticks, saving significant manpower and greatly improving the efficiency of culture medium bagging and inoculation. Furthermore, by incorporating continuous, high-strength extruders internally, it provides sustained nutrient release, continuously supplying nutrition for mycelial growth. During bagging, the extruders remain inside the bag, eliminating concerns about the need for careful handling to prevent pore collapse after stick removal, thus facilitating automated inoculation. Attached Figure Description

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of a Poria cocos culture medium preparation device provided in an embodiment of the present invention;

[0023] Figure 2 This is one of the partially enlarged structural schematic diagrams of a Poria cocos culture medium preparation device provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of the extrusion tube and the feeding tube of a Poria cocos culture medium preparation device provided in an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of a Poria cocos culture medium preparation device provided in this embodiment of the invention, comprising a fixed mold, a moving mold, a movable end, and a demolding tube;

[0026] Figure 5 This is a schematic diagram of the feeding component structure of a Poria cocos culture medium preparation device provided in an embodiment of the present invention;

[0027] Figure 6 This is a second partially enlarged structural schematic diagram of a Poria cocos culture medium preparation device provided in an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the synchronization tube and drive wheel structure of a Poria cocos culture medium preparation device provided in an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the synchronous tube structure of a Poria cocos culture medium preparation device provided in an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the drive wheel structure of a Poria cocos culture medium preparation device provided in an embodiment of the present invention;

[0031] Figure 10 This is a schematic diagram of the moving and fixed mold structures of a Poria cocos culture medium preparation device provided in an embodiment of the present invention;

[0032] Figure 11 This is a schematic diagram of one of the extrusion components of a Poria cocos culture medium preparation device provided in an embodiment of the present invention.

[0033] Figure label:

[0034] 1. Hopper; 2. Discharge pipe; 3. Auxiliary bagging sleeve; 4. Inoculation channel generation component; 5. Frame; 6. Central shaft; 7. Feed pipe; 8. Extrusion pipe; 9. Feeding component; 10. First cylinder; 11. Rod head; 12. Rod body; 13. Spring; 14. Guide pipe; 15. Moving mold; 16. Fixed mold; 17. Demolding rod; 18. Second cylinder; 19. Movable end; 20. Groove; 21. Boss; 22. Rod; 23. Hydraulic cylinder; 24. Stop; 26. Storage pipe; 27. Wheel frame; 28. Drive gear; 29. ​​Ring gear; 30. Conveying pipe; 31. Synchronizing pipe; 32. Drive wheel; 33. Through port; 34. Driven gear; 35. Central through hole; 36. Lateral through hole; 37. Extruded part; 38. Demolding hole. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0037] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0040] To better understand the purpose, function, and specific design of this invention, the fully automatic open-line pressing machine of this invention will be described in further detail below with reference to the accompanying drawings.

[0041] Figure 1 This is a schematic diagram of the overall structure of a device for preparing a culture medium for Poria cocos strain, as shown below. Figure 1 As shown, the device includes a frame 5, on which a hopper 1 is mounted. A discharge pipe 2 and an auxiliary bagging sleeve 3 for bagging are provided on one side of the hopper 1. An inoculation channel generating component 4 is provided on the other side of the hopper 1.

[0042] like Figure 2As shown, the inoculation channel generating component 4 includes a first auger (not shown) rotatably disposed within the discharge pipe 2. The first auger has a hollow central shaft 6, which allows material to pass through. In this invention, it is used to allow the extrusion component 37 to pass through, so that the culture medium can be loaded and the extrusion component 37 can be fed in simultaneously. The extrusion component 37 can be disposed in the middle of the bag. The end of the central shaft 6 away from the discharge cylinder passes through the hopper 1 and is connected to the feed pipe 7. The feed pipe 7 and the central shaft 6 are in clearance fit. An extrusion pipe 8 is disposed above the feed pipe 7. The extrusion pipe 8 is connected to the feed pipe 7 through a guide pipe 14. A sealing component is disposed between the guide pipe 14 and the extrusion pipe 8. The extrusion pipe 8 is provided with a feed component 9 and an extrusion component. The feed component 9 is used to feed material into the extrusion pipe 8, and the extrusion component is used to extrude and shape the material to form the extrusion component 37. A pushing component is disposed inside the feed pipe 7.

[0043] like Figures 2-3 As shown, the pushing assembly includes a pushing rod disposed in the feeding pipe 7. The pushing rod can reciprocate along the axial direction of the feeding pipe 7. The movement of the pushing rod can push the extrusion piece 37 that has slid into the feeding pipe 7 toward the central shaft 6, and push the extrusion piece 37 in the central shaft 6 into the mushroom bag. There are no restrictions on the driving component that drives the pushing rod to reciprocate. For example, in this embodiment, a first cylinder 10 is fixed on the frame 5. The output shaft of the first cylinder 10 is fixedly connected to the pushing rod so that the pushing rod can be pushed to reciprocate through the first cylinder 10.

[0044] The push rod includes a rod body 12 and a rod head 11. The rod head 11 is elastically connected to the rod body 12. The elastic connection allows the rod head 11 to provide an axial elastic force to the extrusion piece 37 in the feed tube 7, thereby making the adjacent extrusion pieces 37 in the feed tube 7 and the central shaft 6 fit together. For example, in this embodiment, the elastic element is a spring 13. The rod head 11 is provided with an insertion hole, the rod body 12 is inserted into the insertion hole, and the spring 13 is fixed between the end of the rod body 12 and the insertion hole.

[0045] like Figure 2 , Figure 4 As shown, in one embodiment, the extrusion assembly includes a moving die 15 disposed at one end of the extrusion tube 8 and a fixed die 16 disposed at the other end. The moving die 15 is axially movable toward the fixed die 16, thereby extruding and shaping the material between the fixed die 16 and the moving die 15. For example, the moving die 15 is driven to move by a hydraulic cylinder 23.

[0046] like Figure 4As shown, a demolding assembly is also provided on one side of the fixed mold 16, including a demolding rod 17 fixedly connected to the frame 5. The fixed mold 16 is provided with a demolding hole 38 adapted to the demolding rod 17. The demolding rod 17 and the demolding hole 38 can move relative to each other. For example, the demolding rod 17 is fixed on the frame 5, and the fixed mold 16 is fixed on the output shaft of the second cylinder 18. The second cylinder 18 is fixed on the frame 5, and the fixed mold 16 and the demolding rod 17 can be driven to move axially through the second cylinder 18.

[0047] In one embodiment, the sealing assembly includes a movable end 19, which is axially movable relative to the extrusion tube 8. The guide tube 14 is provided with a clearance opening that mates with the movable end 19. For example, the movable end 19 is cylindrical, and the clearance opening matches the cylindrical tube. When the movable end 19 moves away from the extrusion tube 8, the top of the guide tube 14 is open, and the extruder 37 can slide down along the guide tube 14 after moving to the open position.

[0048] The fixed mold 16 is fixed to the movable end 19, so that when the second cylinder 18 drives the fixed mold 16 to move, the movable end 19 can move synchronously. At this time, the top of the guide tube 14 forms an open state, and the demolding rod 17 extends out from the demolding hole 38, thereby pushing out the extrusion part 37 on the fixed mold 16. The extruded extrusion part 37 is located at the open, so the extrusion part 37 can slide down along the guide tube 14 into the lower feed tube 7.

[0049] like Figure 5 As shown, in one embodiment, the feeding assembly 9 includes a wheel frame 27 rotatably mounted on the frame 5. The wheel frame 27 is provided with a plurality of storage pipes 26. One of the storage pipes 26, which is away from the extrusion pipe 8, is connected to the hopper 1 through a conveying pipe 30. A second auger is rotatably arranged inside the conveying pipe 30. A stop 24 is provided on the side of the wheel frame 27 away from the conveying pipe 30. The stop 24 is provided with a clearance opening to avoid the moving mold 15. The storage pipe 26 is located between the moving mold 15 and the extrusion pipe 8. For example, the second auger is driven to rotate by a motor. When the second auger rotates, it conveys material from the hopper 1 to the corresponding storage pipe 26. After the storage is completed, the wheel frame 27 is rotated so that the unfilled storage pipe 26 is connected to the conveying pipe 30, while the filled storage pipe 26 is rotated to the lower part to connect with the extrusion pipe 8.

[0050] In this embodiment, a ring tooth 29 is provided on the outer side of the wheel frame 27. The ring tooth 29 meshes with the drive gear 28, which is connected to a motor mounted on the frame. When the motor is powered on, it drives the drive gear 28 to rotate, which in turn drives the ring tooth 29 to rotate, and the ring tooth 29 drives the wheel frame 27 to rotate.

[0051] In this embodiment, the baffle 24 is a baffle fixed on the frame 5. One side of the baffle is in clearance fit with the end of the storage tube 26, thereby preventing the material inside the storage tube 26 from spilling out from the end during loading and rotation. An opening is provided at the bottom of the baffle as a clearance opening for the moving mold 15 to enter and exit the storage tube 26.

[0052] like Figure 6 As shown, in one embodiment, a synchronization pipe 31 is provided between the feeding pipe 7 and the central shaft 6. One end of the synchronization pipe 31 is connected to the feeding pipe 7 and the other end is connected to the central shaft 6. The synchronization pipe 31 and the central shaft 6 are in clearance fit. A through-hole 33 is provided on the side of the synchronization pipe 31. A drive wheel 32 is rotatably provided at the through-hole 33. The rotation of the drive wheel 32 can drive the extrusion piece 37 in the synchronization pipe 31 to move in an orderly manner into the central shaft 6.

[0053] like Figures 7-9 As shown, in this embodiment, through-holes 33 are symmetrically arranged on both sides of the synchronization tube 31, and drive wheels 32 are respectively arranged at the through-holes 33. For example, the drive wheels 32 are set as elastic rollers. Two elastic rollers are rotatably mounted on the frame 5, and one of them is driven to rotate by a motor. The roller shafts of the two elastic rollers are equipped with mutually meshing driven gears 34. After the motor is powered on, it can drive the two elastic rollers to rotate synchronously in opposite directions, thereby pushing the extruder 37 in the synchronization tube 31 to move towards the central axis 6. By setting a controller to control the linear speed of the elastic rollers to be the same as the speed at which the auxiliary bagging sleeve 3 moves with the culture bag, the placement speed of the extruder 37 in the central axis 6 is consistent with the bagging speed of the culture medium.

[0054] like Figure 10 As shown, in one embodiment, the fixed mold 16 and / or the moving mold 15 are provided with a rod 22 in the middle to form a central through hole 35 of the extruded part 37. The fixed mold 16 and / or the moving mold 15 are provided with a groove 20 and / or a boss 21 around the rod 22 to form a boss 21 and / or a groove 20 around the central through hole 35, so that a lateral through hole 36 is formed between the extruded parts 37, and the lateral through hole 36 communicates with the central through hole 35. For example, in this embodiment, the moving mold 15 is a circular extrusion block, and the fixed mold 16 is provided with a central rod 22 and a boss 21 and a groove 20 around the rod 22.

[0055] The shapes of the rod 22, the boss 21, and the groove 20 are not limited in this invention. For example, in this embodiment, the rod 22 is set as a round rod, the boss 21 and the groove 20 are set as fan-shaped, and the boss 21 and the groove 20 are spaced apart on the moving mold 15.

[0056] like Figure 11As shown, in some embodiments, by way of example, the present invention provides a possible shape of extrusion member 37 under a unified concept; extrusion member 37 includes a ring body, and a plurality of bosses are provided on one side of the ring body so that when the extrusion member 37 is continuously fitted, a continuous hollow channel, i.e., a central through hole 35, is formed in the middle, and a through hole, i.e., a lateral through hole 36, is formed on the side that communicates with the hollow channel.

[0057] In one embodiment, the present invention can prepare the culture medium through the following steps:

[0058] Step 1: Pour the prepared culture medium into hopper 1;

[0059] Step 2: Then, the inoculation channel generating component 4 on the left side is pre-driven to operate, and the second screw conveyor feeds the material into the storage tube 26. The storage tube 26 containing the culture medium rotates to the lower part and aligns with the extrusion tube 8.

[0060] Step 3: Then, the moving mold 15 is driven by the hydraulic cylinder 23 to move towards the fixed mold 16. During the movement, the material in the storage tube 26 is pushed into the extrusion tube 8. Finally, the moving mold 15 cooperates with the demolding rod 17 and the fixed mold 16 to complete the pressing operation of the extruded part 37.

[0061] Step 4: Drive the second cylinder 18 to move the movable end 19 and the fixed mold 16 to one side. At this time, the demolding rod 17 extends out of the demolding hole 38, and the guide tube 14 closed by the movable end 19 is in an open state. The extruded extruded part 37 slides down from the open part along the guide tube 14 into the feed tube 7.

[0062] Step 5: The first cylinder 10 drives the push rod to move towards the central shaft 6, thereby continuously pushing the fallen extruded part 37 into the central shaft 6. At this time, the pushing speed of the drive wheels 32 on both sides of the synchronous tube 31 matches the extrusion speed.

[0063] Step 6: Continue the above actions until the extrusion part 37 is pushed out from the end of the central shaft 6 near the discharge pipe 2;

[0064] Step 7: Then adjust the inoculation channel generation component 4 and the three sets of auxiliary bagging sleeves to operate synchronously;

[0065] Step 8: First, put the mushroom bag onto the discharge pipe 2, and then control the auxiliary bagging sleeve 3 to be put onto the mushroom bag;

[0066] Step Nine: Drive the first auger, the second auger, the hydraulic cylinder 23, the second cylinder 18, the first cylinder 10, and the drive wheel to move; the first auger transports the culture medium in the hopper to the mushroom bag, while the second auger transports the culture medium to the upper storage pipe 26. The hydraulic cylinder 23 drives the moving mold 15 to move towards the fixed mold 16 to squeeze the material in the lower storage pipe 26. The second cylinder 18 drives the moving end 19 and the fixed mold 16 to cooperate with the demolding rod 17 to demold, thereby continuously transporting the extruded part 37 to the feeding pipe. The first cylinder 10 drives the push rod to continuously push the extruded part 37 in the feeding pipe to the synchronous pipe. The linear speed of the elastic rollers on both sides of the synchronous pipe is consistent with the speed at which the auxiliary bagging sleeve 3 exits from the discharge pipe, so that the extruded part 37 in the central shaft 6 can be continuously transported to the middle of the mushroom bag. At the same time as the extruded part 37 is sent out, culture medium is simultaneously fed into the circumference of the extruded part 37 to position the extruded part 37.

[0067] Step 10: After bagging is completed, the auxiliary bagging sleeve 3 transports the inner mushroom bags to the strapping machine for sealing and boxing. After boxing, high-temperature sterilization is carried out.

[0068] Step 11: After high-temperature sterilization, open the mushroom bag and insert the inoculum into the inoculation channel formed by the extrusion component 37 inside the mushroom bag. There is no need to pull the stick first. Since the extrusion component 37 provides support inside, there is no need to worry about the inoculation channel collapsing during inoculation. Then, simply tie and seal the mushroom bag.

[0069] In the above process, the present invention does not require the insertion and removal of sticks, which can save a lot of labor and significantly improve the efficiency of culture medium bagging and inoculation. On the other hand, by setting a continuous and strong extrusion member 37 inside, it can play the role of slow release of nutrients, which can continuously provide nutrients for mycelial growth. Moreover, since the extrusion member 37 remains in the bag during bagging, there is no need to be careful to avoid the collapse of the channel after the stick is pulled out, which is more conducive to the automation of inoculation.

[0070] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. In the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A kind of poria cocos spawn medium preparation equipment, including rack (5), the hopper (1) is installed on the rack (5), the hopper (1) one side is equipped with discharge pipe (2) and the auxiliary bagging sleeve (3) of cooperation bagging;The hopper (1) other side is equipped with inoculation hole generating component (4);Its characterized in that, The inoculation hole generating assembly (4) comprises a first auger rotatably arranged in the discharge pipe (2), the first auger is provided with a hollow central shaft (6), one end of the central shaft (6) away from the discharge cylinder penetrates the hopper (1) and is communicated with a feeding pipe (7), the feeding pipe (7) is in clearance fit with the central shaft (6), an extrusion pipe (8) is arranged above the feeding pipe (7), the extrusion pipe (8) is communicated with the feeding pipe (7) through a guide pipe (14), a sealing assembly is arranged between the guide pipe (14) and the extrusion pipe (8), the extrusion pipe (8) is provided with a feeding assembly (9) and an extrusion assembly, the feeding assembly (9) is used for feeding materials into the extrusion pipe (8), the extrusion assembly is used for extruding and shaping the materials to form an extruded piece (37), a pushing assembly is arranged in the feeding pipe (7), the extrusion assembly comprises a movable die (15) arranged at one end of the extrusion pipe (8) and a fixed die (16) arranged at the other end, the movable die (15) can move axially towards the fixed die (16), so as to extrude and shape the materials between the fixed die (16) and the movable die (15), the feeding assembly (9) comprises a wheel frame (27) rotatably arranged on a rack (5), a plurality of storage pipes (26) are arranged on the wheel frame (27), one end of one of the storage pipes (26) away from the extrusion pipe (8) is communicated with a storage bin through a conveying pipe (30), a second auger is rotatably arranged in the conveying pipe (30), a blocking piece (24) is arranged on the side of the wheel frame (27) away from the conveying pipe (30), the blocking piece (24) is provided with an avoiding opening (25) avoiding the movable die (15), the storage pipe (26) is located between the movable die (15) and the extrusion pipe (8), a demolding assembly is further arranged on one side of the fixed die (16), comprising a demolding rod (17) fixedly connected with the rack (5), the fixed die (16) is provided with a demolding hole (38) matched with the demolding rod (17), the demolding rod (17) and the demolding hole (38) can relatively move, the sealing assembly comprises a movable end (19), the movable end (19) can move axially relative to the extrusion pipe (8), the guide pipe (14) is provided with an avoiding opening matched with the movable end (19), the fixed die (16) is fixed on the movable end (19), the pushing assembly comprises a pushing rod arranged in the feeding pipe (7), the pushing rod can reciprocate along the axial direction of the feeding pipe (7).

2. The P. fraxinus spore culture medium preparation device according to claim 1, characterized in that, The pushing rod comprises a rod body (12) and a rod head (11), the rod head (11) is elastically connected with the rod body (12).

3. The P. fraxinus spore culture medium preparation device according to any one of claims 1-2, characterized in that, A synchronization pipe (31) is arranged between the feeding pipe (7) and the central shaft (6), one end of the synchronization pipe (31) is communicated with the feeding pipe (7), the other end is communicated with the central shaft (6), and the synchronization pipe (31) is in clearance fit with the central shaft (6), a through opening (33) is arranged on the side of the synchronization pipe (31), and a driving wheel (32) is rotatably arranged at the through opening (33).

4. The P. fraxinus spore culture medium preparation device according to claim 3, characterized in that, The middle part of the fixed mold (16) and / or the movable mold (15) is provided with a rod (22) to form a middle through hole (35) of the extruded part (37), and the fixed mold (16) and / or the movable mold (15) is provided with a groove (20) and / or a boss (21) around the rod (22) to form a boss (21) and / or a groove (20) around the middle through hole, so that a lateral through hole (36) is formed between the extruded parts (37), and the lateral through hole (36) is through the middle through hole (35).

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