Drying oven structure for producing fondaparinux sodium intermediate EF5
Quantitative cut-off and screening are achieved by using circular plates, limit columns and other structures in the production oven of fundaldehyde sodium intermediate EF5, and collecting water droplets in combination with bar boxes and other structures, solving the inefficiency caused by frequent start-up and closing of the drive source. Problems, improving work efficiency and drug quality.
Patent Information
- Application Number
- CN202420863565.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-24
AI Technical Summary
In the prior art, the frequent start-up and shutdown of the oven drive source during the production process of the EF5 fundaldehyde sodium intermediate EF5 leads to a reduced working efficiency.
An oven with structures including circular plates, limit columns, transfer plates, leakproof plates, and connection plates is designed. Through the combination of these structures, quantitative cutting is achieved to avoid excessive accumulation and damage of drugs, and through the connecting plates, Support plate, screen plate, collection plate and other structures realize the flip drying of drugs and screening of defective products. At the same time, the water droplets formed after drying are collected through bar boxes, motor 2, threaded rods, sliders, collection frames and other structures to avoid Water drops fall.
Improve work efficiency, ensure the quality of quantitative drug discharge and drying, avoid waste of water resources, and save water resources.
Smart Images
Figure CN222187586U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of drying of fondaparinux sodium, in particular to an oven structure used for producing an intermediate EF5 of fondaparinux sodium. Background Art
[0002] Fondaparinux is a common surfactant, commonly used in the manufacture of detergents, cleaning agents, personal care products, etc. In the production of Fondaparinux, EF5 refers to a specific intermediate compound, which plays an important role in the entire synthesis process. As an intermediate of Fondaparinux, it is a stage product in the reaction path of synthesizing Fondaparinux. It is an intermediate compound synthesized from the starting materials through a series of chemical reactions, or it is further transformed in subsequent reaction steps. During the synthesis process, EF5 has a specific structure and function to ensure that the quality, stability and performance of the final product meet the requirements.
[0003] After searching, the Chinese patent document announcement number: CN216925003U discloses a Chinese medicinal material drying device that can automatically load materials, which relates to the technical field of Chinese medicine processing. A heating box is installed on one side of the internal part of the loading component, a heating tube is arranged inside the heating box, and an exhaust fan is arranged on the top of the heating box. The power drive end of the motor passes through the interior of the drying box and is connected to the stirring component; the Chinese medicine is put into the feeding barrel, and when loading is required, the hydraulic cylinder is started. When the baffle is located at the first feeding port, the Chinese medicine in the feeding barrel is blocked to prevent the Chinese medicine from falling. If loading is required later, the hydraulic cylinder is started again until the second feeding port is connected to the first feeding port, and the Chinese medicine falls without the need for staff to operate; the exhaust fan extracts the heat in the heating box and then transports the heat into the connecting shaft. This structure enables the stirring paddle to continuously flip and stir the Chinese medicine inside the drying box, so that the drying process of the Chinese medicine is more uniform, thereby improving the efficiency and quality of the drying of the Chinese medicine.
[0004] In view of the above-mentioned related technologies, the inventor believes that the above patent mentioned in the beneficial effects: "A Chinese medicinal material drying device that can automatically load materials. The user first puts the Chinese medicine into the feed barrel. If the Chinese medicine needs to be loaded later, it only needs to start the hydraulic cylinder. When the baffle is located at the first discharge port, the Chinese medicine in the feed barrel is blocked to prevent the Chinese medicine from falling. If loading is required later, the hydraulic cylinder is started again until the second discharge port and the first discharge port are connected, and the Chinese medicine falls. This structure does not require staff to operate, has an automatic mode, can load materials at regular intervals, brings convenience to staff, and improves overall work efficiency". Although the above patent loads materials by starting and shutting down cylinders differently, in the specific operation process, since it takes some time to stabilize and adjust during the startup and shutdown process, the cylinder is frequently started and shut down, resulting in a decrease in the work efficiency of the production line. Therefore, in view of the above shortcomings, an oven structure for the production of fondaparinux sodium intermediate EF5 is proposed. Utility Model Content
[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose an oven structure for the production of fondaparinux sodium intermediate EF5, aiming to improve the problem in the prior art that a driving source needs to be constantly started and shut down, and the driving source needs a certain amount of time to adjust, resulting in reduced work efficiency.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A drying oven structure for producing fondaparinux sodium intermediate EF5 comprises a drying box, a feed box is fixedly connected to the left side of the drying box, a trapezoidal bucket is fixedly connected to the top of the inner wall of the feed box, a driving assembly is fixedly connected to the bottom side of the inner wall of the feed box, an active bevel gear is fixedly connected to the bottom of the driving assembly, a circular plate is fixedly connected to the top side of the driving assembly, a limiting column is fixedly connected to the top of the circular plate, a reciprocating assembly is arranged on the top of the limiting column, a collecting rack is fixedly connected to the right side of the reciprocating assembly, a leak-proof plate is fixedly connected to the top of the left side of the collecting rack, a feed plate is fixedly connected to the middle part of the right end of the trapezoidal bucket, a triangular opening is provided at the right end of the feed box, a rotating assembly is arranged at the right end of the rotating assembly, and a driven bevel gear is fixedly connected to the left end of the rotating assembly.
[0008] As a further description of the above technical solution:
[0009] Two fixing plates are fixedly connected to the front and rear sides of the drying box, a fixing rod is fixedly connected to the inner wall of the fixing plate, a reset assembly is arranged on the outside of the fixing rod, and a plurality of the reset assemblies are fixedly connected to the adjacent sides of each other with a supporting plate, wherein a plurality of the supporting plates are fixedly connected to the top sides with a first sieve plate, and another plurality of the supporting plates are fixedly connected to the bottom sides with a second sieve plate, a collecting plate is slidably connected to the bottom end of the drying box, dryers are arranged at the front and rear ends of the drying box, and a strip plate is fixedly connected to the middle part of the right side of the drying box.
[0010] As a further description of the above technical solution:
[0011] A protection box is fixedly connected to the top right side of the drying box, a strip box is fixedly connected to the top side of the protection box, a power assembly is fixedly connected to the right side of the inner wall of the strip box, a slider is connected to the external thread of the power assembly, a collection frame is fixedly connected to the bottom side of the slider, and rubber rings are in contact with the bottoms of the front and rear ends of the collection frame.
[0012] As a further description of the above technical solution:
[0013] The driving assembly includes a motor 1, the bottom side of the motor 1 is fixedly connected to the bottom side of the inner wall of the feed box, and the driving end of the motor 1 is fixedly connected to a rotating shaft.
[0014] As a further description of the above technical solution:
[0015] The reciprocating assembly comprises a rotating plate, the left end of the rotating plate is externally rotatably connected to the outside of the limiting column, and the right end of the rotating plate is rotatably connected to a connecting plate.
[0016] As a further description of the above technical solution:
[0017] The rotating assembly comprises a driven shaft, the left end of the driven shaft is fixedly connected to the inner wall of the driven bevel gear, and the right end of the driven shaft is fixedly connected to two rubber wheels.
[0018] As a further description of the above technical solution:
[0019] The power assembly includes a second motor, the right side of which is fixedly connected to the right side of the inner wall of the strip box, a threaded rod is fixedly connected to the driving end of the second motor, the outer thread of the threaded rod is connected to the inside of the slider, the outer part of the slider is slidably connected to the inner wall of the strip box, and the outer part of the collection frame is slidably connected to the top inner wall of the drying box.
[0020] As a further description of the above technical solution:
[0021] The bottom end of the rotating shaft is fixedly connected to the inner wall of the driving bevel gear, one side of the driving bevel gear is meshed with one side of the driven bevel gear, and the top side of the rotating shaft is fixedly connected to the bottom side of the circular plate.
[0022] As a further description of the above technical solution:
[0023] The right side of the connecting plate is fixedly connected to the left side of the collecting rack, the top side of the leak-proof plate is slidably connected to the bottom side of the trapezoidal bucket, the top side of the collecting rack is slidably connected to the bottom side of the trapezoidal bucket, and the bottom side of the collecting rack is slidably connected to the top side of the feed plate.
[0024] As a further description of the above technical solution:
[0025] The plurality of reset assemblies each comprise two connecting plates, the interior of the connecting plates being slidably connected to the exterior of the fixing rod, the upper and lower ends of the fixing rod being sleeved with strong springs, and the exterior of the connecting plates being slidably connected to the interior of the fixing plates.
[0026] The utility model has the following beneficial effects:
[0027] 1. In the utility model, by using the structures such as the circular plate, the limit column, the rotating plate, the leak-proof plate, and the connecting plate in coordination, the medicine can be quantitatively discharged, thereby avoiding damage caused by excessive accumulation of the medicine. At the same time, the quantitative discharge can be continued without repeatedly starting and shutting down the driving source, thereby improving work efficiency.
[0028] 2. In the utility model, through the coordinated use of the connecting plate, the support plate, the first sieve plate, the second sieve plate, the collecting plate and other structures, the device can turn over and dry the medicine, so that the medicine can be dried more comprehensively, and at the same time, the defective products can be screened out, thereby improving the quality of the medicine.
[0029] 3. In the utility model, by using the bar box, motor 2, threaded rod, slider, collection frame and other structures in coordination, the water droplets formed after drying can be collected to prevent excessive water droplets from falling back onto the medicine. At the same time, the collected water can be used for other purposes, thereby saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 This is a three-dimensional diagram of an oven structure for producing the intermediate EF5 of fondaparinux sodium proposed in the utility model;
[0031] Figure 2 This is a schematic diagram of the internal structure of a feed box of an oven structure for producing the intermediate EF5 of fondaparinux sodium proposed in the utility model;
[0032] Figure 3 for Figure 2Enlarged view of point A in the middle;
[0033] Figure 4 This is a schematic diagram of the internal structure of a drying oven for the production of fondaparinux sodium intermediate EF5 proposed in the utility model;
[0034] Figure 5 This is a schematic diagram of the internal structure of a fixed plate of an oven structure for producing the intermediate EF5 of fondaparinux sodium proposed in the utility model;
[0035] Figure 6 This is a schematic diagram of the internal structure of a strip box of an oven structure for producing the intermediate EF5 of fondaparinux sodium proposed in the utility model.
[0036] Legend:
[0037] 1. Drying box; 2. Feed box; 3. Trapezoidal bucket; 4. Motor 1; 5. Rotating shaft; 6. Active bevel gear; 7. Round plate; 8. Limiting column; 9. Rotating plate; 10. Leakage-proof plate; 11. Connecting plate; 12. Collecting rack; 13. Feeding plate; 14. Triangular opening; 15. Driven shaft; 16. Driven bevel gear; 17. Rubber wheel; 18. Fixed plate; 19. Fixed rod; 20. Strong spring; 21. Connecting plate; 22. Support plate; 23. First sieve plate; 24. Second sieve plate; 25. Collecting plate; 26. Dryer; 27. Strip plate; 28. Protective box; 29. Strip box; 30. Motor 2; 31. Threaded rod; 32. Sliding block; 33. Collecting frame; 34. Rubber ring. DETAILED DESCRIPTION
[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0039] Reference Figure 1 - Figure 3The utility model provides an embodiment: an oven structure for producing the intermediate EF5 of fondaparinux sodium, including a drying box 1 which is the main structure of the whole equipment, a feed box 2 is fixedly connected to the left side of the drying box 1 for receiving and temporarily storing the materials to be dried, a trapezoidal bucket 3 is fixedly connected to the top of the inner wall of the feed box 2 for guiding the materials into the drying box 1, a driving assembly is fixedly connected to the bottom side of the inner wall of the feed box 2, and the driving assembly includes a motor 4 and a driving source, and the bottom side of the motor 4 is fixedly connected to the bottom side of the inner wall of the feed box 2 so that the motor 4 can operate stably, The driving end of the motor 4 is fixedly connected with a rotating shaft 5, the bottom end of the rotating shaft 5 is fixedly connected to the inner wall of the active bevel gear 6, and the active bevel gear 6 is driven to rotate through the rotating shaft 5, the top side of the rotating shaft 5 is fixedly connected to the bottom side of the circular plate 7, and the rotational movement of the rotating shaft 5 is transmitted to the circular plate 7 at the same time, the bottom end of the driving component is fixedly connected to the active bevel gear 6, and the active bevel gear 6 is driven to rotate through the driving component, the top side of the driving component is fixedly connected with the circular plate 7, and the top side of the circular plate 7 is fixedly connected with a limiting column 8, and the limiting column 8 is located above the circular plate 7, and is used to control the motion range of the reciprocating component;
[0040] A reciprocating assembly is provided at the top of the limiting column 8, and the reciprocating assembly includes a rotating plate 9. The left end of the rotating plate 9 is externally rotatably connected to the outside of the limiting column 8, and the right end of the rotating plate 9 is rotatably connected to the connecting plate 11. When the rotating shaft 5 rotates, the rotating plate 9 reciprocates under the control of the limiting column 8, thereby driving the connecting plate 11 and the collecting frame 12 fixed thereto to perform corresponding reciprocating movements. The right side of the reciprocating assembly is fixedly connected to the collecting frame 12 for catching the materials coming down from the trapezoidal bucket 3. The top side of the collecting frame 12 is slidably connected to the bottom side of the trapezoidal bucket 3, and the right side of the connecting plate 11 It is fixedly connected to the left side of the collecting rack 12, and a leak-proof plate 10 is fixedly connected to the top left side of the collecting rack 12 and is slidably connected to the bottom side of the trapezoidal bucket 3 to prevent leakage of materials during transportation. The top side of the leak-proof plate 10 is slidably connected to the bottom side of the trapezoidal bucket 3. The rotating assembly includes a driven shaft 15, which is driven by the rotating assembly to rotate. The left end of the driven shaft 15 is fixedly connected to the inner wall of the driven bevel gear 16, thereby driving the driven bevel gear 16 to rotate. The driven bevel gear 16 is meshed with the active bevel gear 6 in the driving assembly to realize power transmission.
[0041] Reference Figure 2 , Figure 4 and Figure 5, the right end of the driven shaft 15 is fixedly connected with two rubber wheels 17, the middle part of the right end of the trapezoidal bucket 3 is fixedly connected with a feed plate 13, the bottom side of the collecting frame 12 is slidably connected to the top side of the feed plate 13, and the right end of the feed plate 13 is provided with a triangular opening 14 for discharging materials, and a rotating assembly is provided at the right end of the feed box 2, and a driven bevel gear 16 is fixedly connected to the left end of the rotating assembly, and one side of the driving bevel gear 6 is meshed with one side of the driven bevel gear 16. Two fixed plates 18 are fixedly connected to the front and rear sides of the drying box 1, and a fixed rod 19 is fixedly connected to the inner wall of the fixed plate 18. A reset assembly is provided on the outside of the fixed rod 19, and multiple reset assemblies each include two connecting plates 21;
[0042] The inside of the connecting plate 21 is slidably connected to the outside of the fixed rod 19, and the upper and lower ends of the fixed rod 19 are both sleeved with strong springs 20 to provide elastic force for the reset assembly. The outside of the connecting plate 21 is slidably connected to the inside of the fixed plate 18, wherein the adjacent sides of multiple reset assemblies are fixedly connected with support plates 22, and the top sides of multiple support plates 22 are fixedly connected with first sieve plates 23, and the bottom sides of multiple support plates 22 are fixedly connected with second sieve plates 24, which together complete the screening and supporting functions of the materials. The bottom end of the drying box 1 is slidably connected with a collecting plate 25 for collecting waste or residues that may be generated during the drying process. Dryers 26 are provided at the front and rear ends of the drying box 1 for providing hot air into the box to achieve drying of the materials. A strip plate 27 is fixedly connected to the middle of the right side of the drying box 1.
[0043] Reference Figure 1 and Figure 6 The top right side of the drying box 1 is fixedly connected with a protection box 28, the top side of the protection box 28 is fixedly connected with a strip box 29, the right side of the inner wall of the strip box 29 is fixedly connected with a power assembly, the power assembly includes a motor 2 30, the driving source motor 2 30 drives the threaded rod 31 to rotate, the right side of the motor 2 30 is fixedly connected to the right side of the inner wall of the strip box 29, the driving end of the motor 2 30 is fixedly connected with a threaded rod 31, the external thread of the threaded rod 31 is connected to the inside of the slider 32, the external sliding connection of the slider 32 is connected to the inner wall of the strip box 29, and then drives the slider 32 to move up and down on the inner wall of the strip box 29, the external sliding connection of the collecting frame 33 is connected to the top inner wall of the drying box 1, which is used to bear force on the hydrogel beads, the external thread of the power assembly is connected with the slider 32, the bottom side of the slider 32 is fixedly connected with the collecting frame 33, and the front and rear ends of the collecting frame 33 are in contact with rubber rings 34 at the bottom.
[0044] Working principle: We put the material inside the feed box 2, and then it flows to the inside of the collecting rack 12. At this time, the driving motor 4 drives the rotating shaft 5 to rotate, thereby driving the circular plate 7 to rotate, and then driving the limiting column 8 to rotate, and the rotating plate 9 is rotated outside the limiting column 8 and the connecting plate 11, so that the rotating plate 9 is pushed back and forth by the limiting column 8, and then the connecting plate 11 is pushed to slide, and then the collecting rack 12 is pushed to slide on the top side of the feed plate 13, and then the collecting rack 12 drives the leak-proof plate 10 to slide on the bottom side of the trapezoidal bucket 3 to prevent the material from rolling down. At the same time, the material inside the collecting rack 12 will slide to the top of the triangular opening 14 opened by the feed plate 13, and the material will fall down, thereby continuously completing the quantitative feeding process;
[0045] The material will fall to the top side of the first sieve plate 23, and the rotating shaft 5 will also drive the active bevel gear 6 to rotate, thereby driving the meshing driven bevel gear 16 to rotate, thereby driving the driven shaft 15 to rotate, and then driving the rubber wheel 17 to hit the first sieve plate 23 and the second sieve plate 24, so that the material can roll, and then it will be subjected to the heat source provided by the dryer 26, and then it will be evenly dried, and the first sieve plate 23 and the second sieve plate 24 will slide up and down to screen the material and drop it into the collecting plate 25 for collection, and at the same time, the second sieve plate 24 and the first sieve plate 23 will drive the four connecting plates 21 to slide in different directions on the outside of the fixed rod 19, and each connecting plate 21 will squeeze the strong spring 20 after sliding under force, so that the strong spring 20 can store elastic potential energy, and then give the first sieve plate 23 and the second sieve plate 24 a force in the opposite direction to reset;
[0046] The water vapor formed by drying will form water droplets on the top side of the inner wall of the drying box 1. At this time, the threaded rod 31 is driven to rotate by the driving motor 2 30, thereby driving the slider 32 to slide inside the strip box 29. Through the restriction of the strip box 29, the slider 32 converts the force it receives into sliding, and then drives the collection frame 33 to slide, and then the top side of the collection frame 33 will contact the top side of the inner wall of the drying box 1 and collect the water droplets.
[0047] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An oven structure for producing fondaparinux sodium intermediate EF5, comprising a drying oven (1), characterized in that: The left side of the drying box (1) is fixedly connected to a feed box (2), the top of the inner wall of the feed box (2) is fixedly connected to a trapezoidal bucket (3), the bottom side of the inner wall of the feed box (2) is fixedly connected to a driving assembly, the bottom end of the driving assembly is fixedly connected to an active bevel gear (6), the top side of the driving assembly is fixedly connected to a circular plate (7), the top side of the circular plate (7) is fixedly connected to a limiting column (8), the top of the limiting column (8) is provided with a reciprocating assembly, the right side of the reciprocating assembly is fixedly connected to a collecting rack (12), the left top of the collecting rack (12) is fixedly connected to a leak-proof plate (10), the middle of the right end of the trapezoidal bucket (3) is fixedly connected to a feed plate (13), the right end of the feed plate (13) is provided with a triangular opening (14), the right end of the feed box (2) is provided with a rotating assembly, and the left end of the rotating assembly is fixedly connected to a driven bevel gear (16).
2. The oven structure for producing the intermediate EF5 of fondaparinux sodium according to claim 1, characterized in that: Two fixing plates (18) are fixedly connected to both the front and rear sides of the drying box (1), a fixing rod (19) is fixedly connected to the inner wall of the fixing plate (18), a reset assembly is arranged outside the fixing rod (19), and a plurality of the reset assemblies are fixedly connected to the adjacent sides of a plurality of the reset assemblies, wherein a first sieve plate (23) is fixedly connected to the top side of a plurality of the support plates (22), and a second sieve plate (24) is fixedly connected to the bottom side of another plurality of the support plates (22), a collecting plate (25) is slidably connected to the bottom end of the drying box (1), a dryer (26) is arranged at both the front and rear ends of the drying box (1), and a strip plate (27) is fixedly connected to the middle of the right side of the drying box (1).
3. The oven structure for producing the intermediate EF5 of fondaparinux sodium according to claim 1, characterized in that: The top right side of the drying box (1) is fixedly connected to a protection box (28), the top side of the protection box (28) is fixedly connected to a strip box (29), the right side of the inner wall of the strip box (29) is fixedly connected to a power assembly, the external thread of the power assembly is connected to a slider (32), the bottom side of the slider (32) is fixedly connected to a collection frame (33), and the bottoms of the front and rear ends of the collection frame (33) are in contact with rubber rings (34).
4. The oven structure for producing the intermediate EF5 of fondaparinux sodium according to claim 1, characterized in that: The driving assembly comprises a motor 1 (4), the bottom side of the motor 1 (4) is fixedly connected to the bottom side of the inner wall of the feed box (2), and the driving end of the motor 1 (4) is fixedly connected to a rotating shaft (5).
5. The oven structure for producing the intermediate EF5 of fondaparinux sodium according to claim 1, characterized in that: The reciprocating assembly comprises a rotating plate (9), the left end of the rotating plate (9) is rotatably connected to the outside of the limiting column (8), and the right end of the rotating plate (9) is rotatably connected to a connecting plate (11).
6. The oven structure for producing the intermediate EF5 of fondaparinux sodium according to claim 1, characterized in that: The rotating assembly comprises a driven shaft (15), the left end of the driven shaft (15) is fixedly connected to the inner wall of the driven bevel gear (16), and the right end of the driven shaft (15) is fixedly connected to two rubber wheels (17).
7. The oven structure for producing the intermediate EF5 of fondaparinux sodium according to claim 3, characterized in that: The power assembly comprises a second motor (30), the right side of the second motor (30) is fixedly connected to the right side of the inner wall of the strip box (29), the driving end of the second motor (30) is fixedly connected to a threaded rod (31), the outer thread of the threaded rod (31) is connected to the inside of the slider (32), the outer part of the slider (32) is slidably connected to the inner wall of the strip box (29), and the outer part of the collection frame (33) is slidably connected to the inner wall of the top end of the drying box (1).
8. The oven structure for producing the intermediate EF5 of fondaparinux sodium according to claim 4, characterized in that: The bottom end of the rotating shaft (5) is fixedly connected to the inner wall of the active bevel gear (6), one side of the active bevel gear (6) is meshingly connected to one side of the driven bevel gear (16), and the top side of the rotating shaft (5) is fixedly connected to the bottom side of the circular plate (7).
9. The oven structure for producing the intermediate EF5 of fondaparinux sodium according to claim 5, characterized in that: The right side of the connecting plate (11) is fixedly connected to the left side of the collecting frame (12), the top side of the leak-proof plate (10) is slidably connected to the bottom side of the trapezoidal bucket (3), the top side of the collecting frame (12) is slidably connected to the bottom side of the trapezoidal bucket (3), and the bottom side of the collecting frame (12) is slidably connected to the top side of the feeding plate (13).
10. The oven structure for producing the intermediate EF5 of fondaparinux sodium according to claim 2, characterized in that: The plurality of reset assemblies each comprise two connecting plates (21), the interior of the connecting plates (21) being slidably connected to the exterior of the fixing rod (19), the upper and lower ends of the fixing rod (19) being sleeved with strong springs (20), and the exterior of the connecting plates (21) being slidably connected to the interior of the fixing plate (18).