Raw material quantitative conveying device for preparing special isocyanate

Abstract

The invention discloses a raw material quantitative conveying device for preparing special isocyanate, relates to the field of raw material conveying, and solves the problem that an existing raw material quantitative conveying device is difficult to feed and discharge materials circularly for conveying. The raw material quantitative conveying device comprises a conveying belt and a plurality of feeding cylinders arranged at the top of the conveying belt at equal intervals, and a feeding pipe is arranged above the conveying belt; a mounting disc is arranged at the bottom of the feeding pipe, a discharging pipe located above the feeding barrel is arranged at the bottom of the mounting disc, and two symmetrically-distributed supports are fixedly mounted between the outer side of the mounting disc and the top of the conveying belt; the material distributing mechanism is used for quantitatively distributing the raw materials falling from the feeding barrel, and the material distributing mechanism is mounted on the inner side of the mounting disc; by means of the material distributing mechanism, raw materials falling from the feeding pipe can be received in batches, quantitative raw materials are put into the discharging pipe in an alternate mode, in the alternate process, the feeding pipe is sealed, normal discharging of the feeding pipe is guaranteed, and therefore the quantitative circulating conveying effect is achieved.

Description

Technical Field

[0001] The invention relates to the field of raw material transportation, in particular to a raw material quantitative transportation device for preparing special isocyanate. Background Art

[0002] Special isocyanate is a special isocyanate with high refractive index, high durability, excellent anti-yellowing and fast curing properties. It contains unsaturated bonds in the structure and has high activity. It is one of the key raw materials for the production of polyurethane. It can be made into a series of carbamate insecticides, fungicides, herbicides, and is also used to improve the waterproofness of plastics, fabrics, leather, etc.

[0003] In the preparation process of special isocyanate, it is necessary to transport a variety of raw materials to facilitate multi-step processing. The existing Chinese public patent document: CN219468947U discloses a chemical raw material quantitative conveying device, which drives the distribution plate to rotate by a rotating motor, and cooperates with the cam structure and slide rail of the distribution plate to drive the roller to pull the driving rod, so as to realize the sliding of the driving rod and the slider in the distribution piece, thereby driving the two staggered distribution plates to be inserted and reset in the two movable grooves respectively, thereby separating the chemical raw materials in the feeding channel, and fixing the length of the feeding channel between the two distribution plates to achieve quantitative separation of chemical raw materials. In the process of unloading, it is necessary to keep the distribution plate in a normally open state, and close the distribution plate in time after the raw material falls, so that the distribution plate needs to have a faster closing speed, and in order to prevent the weight of the raw materials put into the distribution piece again from affecting the normal unloading of the raw materials below, it is necessary to stop sealing the top of the distribution piece, which increases the difficulty of unloading and affects the normal circulation discharge. Summary of the invention

[0004] The object of the present invention is to provide a raw material quantitative delivery device for preparing special isocyanate to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A device for quantitatively conveying raw materials for preparing special isocyanate comprises: a conveyor belt and a plurality of feeding barrels equidistantly arranged on the top of the conveyor belt, a feeding pipe is arranged above the conveyor belt, a mounting plate is arranged at the bottom of the feeding pipe, a discharge pipe located above the feeding barrel is arranged at the bottom of the mounting plate, and a plurality of raw materials discharged from the discharge pipe are indirectly conveyed in batches through the conveyor belt, and two symmetrically distributed brackets are fixedly installed between the outer side of the mounting plate and the top of the conveyor belt; it also comprises: a material distribution mechanism for quantitatively distributing the raw materials dropped from the feeding barrel, the material distribution mechanism is installed on the inner side of the mounting plate; a quantity adjustment mechanism for adjusting the discharge amount of the mounting plate, the quantity adjustment mechanism is installed on the inner side of the mounting plate; a fixed plate mechanism for improving the stability of the material distribution of the mounting plate, the fixed plate mechanism is installed on the outer side of the mounting plate.

[0007] Preferably, the material distribution mechanism includes a material distribution plate rotatably mounted on the inner side of the mounting plate, the outer side of the material distribution plate contacts the inner side of the mounting plate, the outer side of the material distribution plate is provided with two symmetrically distributed material receiving cavities, the inner side of the material receiving cavity is fixedly provided with a material receiving barrel, the top and bottom of the mounting plate are respectively provided with openings corresponding to the material receiving cavities, the feed pipe and the discharge pipe are both docked with the mounting plate through an annular seat, the inner diameters of the feed pipe, the discharge pipe and the receiving barrel are the same, so that the material inside the feed pipe The falling raw materials can enter the receiving barrel, and when the material distribution disc rotates, the receiving barrel filled with raw materials can be aligned with the discharge pipe, and the empty receiving barrel can be aligned with the feed pipe to realize quantitative circulation transportation. The outer side of the material distribution disc is fixedly installed with a rotating shaft extending to the outer side of the mounting disc, and the outer side of the mounting disc is fixedly installed with a mounting frame, and the outer side of the mounting frame is fixedly installed with a driving motor, and the output end of the driving motor is fixedly connected to the rotating shaft, and the rotating shaft on the material distribution disc is driven to rotate by the driving motor to realize intermittent rotation of the material distribution disc.

[0008] Preferably, the amount adjustment mechanism includes a chassis slidably mounted on the inner side of the material receiving barrel, the outer side of the chassis contacts the inner side of the material receiving barrel, two symmetrically distributed moving blocks are arranged on the inner side of the material distribution plate, a limiting cavity for limiting the sliding of the moving blocks is opened on the inner side of the material distribution plate, a bidirectional screw is rotatably mounted between the inner sides of the two limiting cavities, the threads at both ends of the bidirectional screw are respectively matched with the two moving blocks, four push rods symmetrically distributed in the center are fixedly mounted between the two moving blocks and the two chassis respectively, so that when the bidirectional screw rotates, The two moving blocks can be driven along the corresponding limit cavities to move toward or away from each other to achieve the adjustment of the position of the chassis. The push rod slides through the material receiving barrel, and the storage space in the material receiving barrel is adjusted through the distance between the chassis and the opening of the material receiving barrel. A positioning seat is fixedly installed on the side of the material distribution plate away from the rotating shaft, and an adjusting rod is rotatably installed on the inner side of the positioning seat. A synchronous belt is rotatably installed between the adjusting rod and the bidirectional screw. The bidirectional screw is adjusted by rotating the adjusting rod, and an observation port for the adjustment operation of the adjusting rod is opened on the outer side of the mounting plate.

[0009] Preferably, the fixed disk mechanism includes two mounting plates symmetrically arranged on both sides of the mounting disk, and both sides of the mounting disk are fixedly installed with U-shaped rods, and both ends of the two U-shaped rods slide through the surfaces of the two mounting plates respectively to provide guidance and limitation for the movement of the mounting plates, and both ends of the U-shaped rods are provided with tension springs, which are fixedly installed between the mounting plate and the mounting disk to facilitate the resetting of the mounting plate, and both ends of the mounting plate are fixedly installed with plug-in plates, which slide and extend to the inner side of the mounting disk, and the end of the plug-in plate away from the mounting plate is an arc structure, and the outer side of the distribution disk is provided with an arc groove for the plug-in plate to limit the insertion, so that the distribution disk can push the plug-in plate to move when it rotates, and after the distribution disk rotates one hundred and eighty degrees, the plug-in plate is inserted into the arc groove again.

[0010] Preferably, a discharge pipe is fixedly installed at the bottom of the discharge pipe, the outer diameter of the discharge pipe is smaller than the inner diameter of the feed barrel, a mounting ring is fixedly installed on the inner side of the discharge pipe, a guide block is slidably installed on the inner side of the mounting ring, both sides of the bottom of the guide block are arc-shaped structures, the bottom of the guide block extends to the bottom of the discharge pipe, so that the top of the feed barrel can push the guide block to move upward when it contacts the side of the guide block, and a fixed seat is fixedly installed at the bottom of the feed barrel, a magnetic socket is provided at the bottom of the fixed seat, and a plurality of magnetic sockets matching the magnetic sockets at the bottom of the fixed seat are fixedly installed on the conveyor belt, so that the magnetic sockets are inserted into the fixed seat. The fixing seat is fixed on the conveyor belt in the magnetic socket to provide support for the feeding barrel. A spring is fixedly installed between the outer side of the fixing seat and the outer side of the guide block to facilitate the upward movement and downward reset of the guide block. A discharge cavity is opened on the top of the guide block, and a feed pipe is arranged on the inner side of the guide block. The feed pipe is docked with the discharge cavity through a docking ball, so that the feed pipe can swing up and down in the discharge cavity through the docking ball. Two symmetrically distributed coil springs are fixedly installed between the outer side of the docking ball and the inner side of the guide block to facilitate the swing and reset of the docking ball and the feed pipe. A sliding cavity for limiting the sliding of the feed pipe is opened at the bottom of the guide block to provide space for the swing of the feed pipe.

[0011] Preferably, an annular cavity is provided on the inner side of the mounting plate, and a sealing ring in contact with the outer side of the material distribution plate is fixedly installed on the inner side of the annular cavity, and two through holes corresponding to the two openings of the mounting plate are provided on the outer side of the sealing ring to improve the sealing performance of the receiving barrel.

[0012] Preferably, four guide rods symmetrically distributed in the center are fixedly installed on one side of the chassis close to the push rod, and the guide rods slide through the distribution plate. A limiting block is fixedly installed on one end of the guide rod. A sliding groove is provided on the inner side of the distribution plate for the guide rods and the limiting block to slide in a limited manner, thereby improving the stability of the chassis movement.

[0013] Preferably, two symmetrically distributed sliding rods are provided above and below the positioning seat, the four limit blocks close to the positioning seat are fixedly connected to the four sliding rods respectively, and a long groove for the sliding rods to limit their sliding is provided on the outer side of the material distribution plate, so as to facilitate observation of the movement of the chassis.

[0014] Preferably, an identification strip is fixedly mounted on one end of the slide rod away from the guide rod, and a scale strip matching the identification strip is provided on the outer side of the material distribution plate to facilitate calculation of the storage capacity of the receiving barrel.

[0015] Preferably, a turntable is fixedly mounted on both ends of the adjusting rod, and a plurality of anti-slip strips symmetrically distributed in the center are provided on the outer side of the turntable to facilitate the adjustment operation of the adjusting rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can catch the raw materials dropped from the feed pipe in batches through the material dividing mechanism, and put a certain amount of raw materials into the discharge pipe in a rotation manner, which is convenient for pouring the raw materials into the feeding barrel, so that the conveyor belt can transport the certain amount of raw materials, and in the process of rotation, the feed pipe is sealed to ensure the normal discharge of the feed pipe, thereby achieving the effect of quantitative circulation transportation.

[0018] 2. The present invention can adjust the height of the bottom plate in the docking barrel through the adjusting mechanism, reduce or increase the storage space of the docking barrel, and make corresponding adjustments according to the input amount of raw materials, thereby achieving the effect of facilitating the adjustment of the feeding amount.

[0019] 3. The present invention uses a fixed disc mechanism to push the insert plate to move when the material distribution disc rotates, so that the insert plate is away from the arc groove on the material distribution disc, and after the positions of the two material receiving cavities in the material distribution disc are replaced, the two insert plates can be inserted into the arc groove again to keep the two material receiving cavities in the material distribution disc in a vertical state, thereby achieving the effect of improving the accuracy of material discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the mounting plate and the receiving barrel in the present invention;

[0022] Figure 3 It is a schematic diagram of the sealing plate and the mounting frame structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the chassis and the moving block structure in the present invention;

[0024] Figure 5 It is a schematic diagram of the positioning seat and the rotating shaft structure in the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the guide rod and the identification strip in the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the U-shaped rod and the adjusting rod in the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of the plug board and the mounting plate in the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of the docking ball and the feeding pipe in the present invention.

[0029] In the figure: 1. conveyor belt; 2. feeding barrel; 3. feeding pipe; 4. mounting plate; 5. feeding pipe; 6. bracket; 7. material distribution plate; 8. receiving barrel; 9. annular seat; 10. rotating shaft; 11. mounting frame; 12. driving motor; 13. chassis; 14. moving block; 15. bidirectional screw; 16. push rod; 17. positioning seat; 18. adjusting rod; 19. synchronous belt; 20. mounting plate; 21. U-shaped rod; 22, tension spring; 23, plug plate; 24, discharge pipe; 25, sealing ring; 26, guide rod; 27, slide bar; 28, identification strip; 29, scale strip; 30, turntable; 31, limit cavity; 32, observation port; 33, limit block; 34, mounting ring; 35, guide block; 36, fixing seat; 37, magnetic socket; 38, spring; 39, feed pipe; 40, docking ball; 41, coil spring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative inspiration are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figure 1-Figure 9 The device for quantitatively conveying raw materials for preparing special isocyanate shown in the figure comprises a conveyor belt 1 and a plurality of feeding barrels 2 equidistantly arranged on the top of the conveyor belt 1, a feeding pipe 3 is arranged above the conveyor belt 1, a mounting plate 4 is arranged at the bottom of the feeding pipe 3, a discharge pipe 5 located above the feeding barrel 2 is arranged at the bottom of the mounting plate 4, and the plurality of raw materials discharged from the discharge pipe 5 are indirectly batch-conveyed by the conveyor belt 1, and two symmetrically distributed brackets 6 are fixedly installed between the outer side of the mounting plate 4 and the top of the conveyor belt 1; it also comprises: a material distribution mechanism for quantitatively distributing the raw materials dropped from the feeding barrel 2, and the material distribution mechanism is installed on the inner side of the mounting plate 4; an adjusting mechanism for adjusting the discharge amount of the mounting plate 4, and the adjusting mechanism is installed on the inner side of the mounting plate 4; a fixing plate mechanism for improving the stability of the material distribution of the mounting plate 4, and the fixing plate mechanism is installed on the outer side of the mounting plate 4.

[0032] The material distribution mechanism includes a material distribution plate 7 rotatably mounted on the inner side of the mounting plate 4, the outer side of the material distribution plate 7 is in contact with the inner side of the mounting plate 4, the outer side of the material distribution plate 7 is provided with two symmetrically distributed material receiving cavities, the inner side of the material receiving cavity is fixedly provided with a material receiving barrel 8, the top and bottom of the mounting plate 4 are respectively provided with openings corresponding to the material receiving cavities, the feed pipe 3 and the discharge pipe 5 are docked with the mounting plate 4 through an annular seat 9, the feed pipe 3, the discharge pipe 5 and the material receiving barrel 8 have the same inner diameter, so that the raw materials falling in the feed pipe 3 can enter the material receiving barrel 8, and When the material distribution plate 7 rotates, the receiving barrel 8 filled with raw materials can be aligned with the feeding pipe 5, and the empty receiving barrel 8 is aligned with the feeding pipe 3 to realize quantitative circulation transportation. The outer side of the material distribution plate 7 is fixedly installed with a rotating shaft 10 extending to the outer side of the mounting plate 4, and the outer side of the mounting plate 4 is fixedly installed with a mounting frame 11. The outer side of the mounting frame 11 is fixedly installed with a driving motor 12. The output end of the driving motor 12 is fixedly connected to the rotating shaft 10. The rotating shaft 10 on the material distribution plate 7 is driven to rotate by the driving motor 12 to realize intermittent rotation of the material distribution plate 7.

[0033] The raw materials dropped from the feeding tube 3 can enter the receiving barrel 8 located above the distributing plate 7. When the raw materials in the receiving barrel 8 are full, the driving motor 12 drives the distributing plate 7 to rotate half a circle through the rotating shaft 10, so that the positions of the two receiving barrels 8 in the distributing plate 7 are replaced, and in the process of the receiving barrel 8 moving, the receiving barrel 8 can move along the inner side of the mounting plate 4, so that the inner side of the mounting plate 4 is sealed with the connecting barrel 8, and the outer side of the distributing plate 7 is sealed with the bottom of the feeding tube 3. When the receiving barrel 8 filled with raw materials is aligned with the discharge pipe 5, the raw materials can be sent into the feeding barrel 2 through the discharge pipe 5, and the feeding barrel 2 is transported by the conveyor belt 1. At the same time, the empty receiving barrel 8 is aligned with the bottom of the feeding tube 3, and the raw materials in the feeding tube 3 can enter the empty receiving barrel 8, thereby the driving motor 12 cooperates with the conveyor belt 1 to realize the quantitative and circular transportation of the raw materials.

[0034] The adjusting mechanism includes a chassis 13 slidably mounted on the inner side of the receiving barrel 8, the outer side of the chassis 13 contacts the inner side of the receiving barrel 8, two symmetrically distributed moving blocks 14 are arranged on the inner side of the material distribution plate 7, and a limiting cavity 31 for limiting the sliding of the moving block 14 is opened on the inner side of the material distribution plate 7. A bidirectional screw 15 is rotatably mounted between the inner sides of the two limiting cavities 31, and the threads at both ends of the bidirectional screw 15 are respectively matched with the two moving blocks 14. Four push rods 16 symmetrically distributed in the center are fixedly mounted between the two moving blocks 14 and the two chassis 13, so that when the bidirectional screw 15 rotates, it can drive the two moving blocks 14 are moved toward or away from each other along the corresponding limiting cavity 31 to adjust the position of the chassis 13, the push rod 16 slides through the receiving barrel 8, and the material storage space in the receiving barrel 8 is adjusted by the distance between the chassis 13 and the opening of the receiving barrel 8. A positioning seat 17 is fixedly installed on the side of the distribution plate 7 away from the rotating shaft 10, and an adjusting rod 18 is rotatably installed on the inner side of the positioning seat 17. A synchronous belt 19 is rotatably installed between the adjusting rod 18 and the bidirectional screw 15. The bidirectional screw 15 is adjusted by rotating the adjusting rod 18. An observation port 32 for adjusting the adjusting rod 18 is opened on the outer side of the mounting plate 4;

[0035] The adjusting rod 18 can drive the bidirectional screw 15 to rotate through the synchronous belt 19, so that the bidirectional screw 15 drives the two moving blocks 14 to move closer to or away from each other along the corresponding limiting cavity 31, and the moving block 14 drives the chassis 13 to move along the inner side of the receiving barrel 8 through the push rod 16, so as to realize the adjustment of the internal storage space of the receiving barrel 8, so as to facilitate the corresponding adjustment of the quantitative space of the receiving barrel 8 according to the conveying amount of the raw materials, so as to facilitate the adjustment of the feeding amount of the raw materials.

[0036] Working principle: first, the user rotates the adjusting rod 18, so that the adjusting rod 18 drives the bidirectional screw 15 to rotate through the synchronous belt 19, and the bidirectional screw 15 drives the two moving blocks 14 to move along the inner side of the corresponding limit cavity 31, so that the moving block 14 drives the chassis 13 to move along the inner side of the receiving barrel 8 through the push rod 16, and adjusts the storage space of the docking barrel 8. The user makes corresponding adjustments to the quantitative space of the docking barrel 8 according to the conveying amount of the raw materials. Then, the user docks the pipeline for conveying raw materials with the feeding pipe 3 to feed the raw materials into the feeding pipe 3. At this time, the raw materials falling from the feeding pipe 3 enter the receiving barrel 8 located above the distributing plate 7. When the raw materials in the receiving barrel 8 are filled, the driving motor 12 is started, and the driving motor 12 drives the distributing plate 7 to rotate through the rotating shaft 10, and the distributing plate 7 drives the two receiving barrels 8 The receiving barrel 8 rotates with the rotating shaft 10 as the center, and moves along the inner side of the mounting disk 4, so that the inner side of the mounting disk 4 is sealed with the barrel 8, and the outer side of the distribution disk 7 is sealed with the bottom of the feeding pipe 3. When the distribution disk 7 rotates half a circle, the receiving barrel 8 filled with raw materials is aligned with the discharge pipe 5, and the raw materials are fed into the feeding barrel 2 through the discharge pipe 5. Then, the conveyor belt 1 drives multiple feeding barrels 2 to move, so that the empty feeding barrel 2 moves to the bottom of the discharge pipe 5. At the same time, the empty receiving barrel 8 is aligned with the bottom of the feeding pipe 3, and the raw materials in the feeding pipe 3 can enter the empty receiving barrel 8. Finally, with the cooperation of the driving motor 12 and the conveyor belt 1, the continuous transportation of raw materials by multiple feeding barrels 2 improves the accuracy of raw material transportation, thereby achieving the effect of quantitative and circular feeding, and improving the efficiency and convenience of raw material transportation.

[0037] Example 2: Please refer to Figure 2 , Figure 7 and Figure 8 , this embodiment further explains Example 1. The fixed disk mechanism shown in the figure includes two mounting plates 20 symmetrically arranged on both sides of the mounting disk 4. U-shaped rods 21 are fixedly installed on both sides of the mounting disk 4. The two ends of the two U-shaped rods 21 slide through the surfaces of the two mounting plates 20 respectively, providing guidance and limit for the movement of the mounting plates 20. Tension springs 22 are provided at both ends of the U-shaped rods 21. The tension springs 22 are fixedly installed between the mounting plates 20 and the mounting disk 4 to facilitate the resetting of the mounting plates 20. Insert plates 23 are fixedly installed at both ends of the mounting plates 20. The insert plates 23 slide and extend to the inner side of the mounting disk 4. The end of the insert plates 23 away from the mounting plates 20 is an arc-shaped structure. An arc groove for the insert plates 23 to limit the insertion is opened on the outer side of the distribution disk 7, so that the distribution disk 7 can push the insert plates 23 to move when it rotates, and after the distribution disk 7 rotates 180 degrees, the insert plates 23 are inserted into the arc groove again;

[0038] In the present embodiment: when the material distribution disc 7 rotates, the arc-shaped end of the insert plate 23 can be pushed through the arc-shaped groove on its outer side, so that the insert plate 23 pushes the mounting plate 20 to move along the outer side of the U-shaped rod 21, stretching the tension spring 22. After the material distribution disc 7 rotates half a circle, the insert plate 23 can be inserted into the arc-shaped groove at the opposite position by utilizing the rebound force of the tension spring 22. By utilizing the sound produced by the insert plate 23 being inserted into the arc-shaped groove, the user can judge whether the two receiving barrels 8 on the material distribution disc 7 are aligned with the feed pipe 3 and the discharge pipe 5 respectively, which is convenient for timely maintenance and improves the accuracy of raw material transportation.

[0039] Example 3: Please refer to Figure 1 , Figure 2 and Fig. 9 , this embodiment further explains other embodiments. A discharge pipe 24 is fixedly installed at the bottom of the discharge pipe 5 in the figure. The outer diameter of the discharge pipe 24 is smaller than the inner diameter of the feed barrel 2. A mounting ring 34 is fixedly installed on the inner side of the discharge pipe 24. A guide block 35 is slidably installed on the inner side of the mounting ring 34. Both sides of the bottom of the guide block 35 are arc-shaped structures. The bottom of the guide block 35 extends to the bottom of the discharge pipe 24, so that when the top of the feed barrel 2 contacts the side of the guide block 35, it can push the guide block 35 to move upward. A fixed seat 36 is fixedly installed at the bottom of the feed barrel 2. A magnetic socket is provided at the bottom of the fixed seat 36. A plurality of magnetic sockets 37 that match the magnetic sockets at the bottom of the plurality of fixed seats 36 are fixedly installed on the conveyor belt 1, so that the magnetic sockets 37 can be inserted into The fixed seat 36 is fixed on the conveyor belt 1 in the magnetic socket of the fixed seat 36 to provide support for the feeding barrel 2. A spring 38 is fixedly installed between the outer side of the fixed seat 36 and the outer side of the guide block 35 to facilitate the upward movement and downward reset of the guide block 35. A discharge cavity is provided at the top of the guide block 35, and a feed pipe 39 is provided on the inner side of the guide block 35. The feed pipe 39 is docked with the discharge cavity through a docking ball 40, so that the feed pipe 39 can swing up and down in the discharge cavity through the docking ball 40. Two symmetrically distributed coil springs 41 are fixedly installed between the outer side of the docking ball 40 and the inner side of the guide block 35 to facilitate the swing and reset of the docking ball 40 and the feed pipe 39. A sliding cavity for limiting the sliding of the feed pipe 39 is provided at the bottom of the guide block 35 to provide space for the swing of the feed pipe 39.

[0040] In this embodiment: the staff can dock the magnetic socket of the fixing seat 36 with the magnetic socket 37 on the conveyor belt 1, and fix the fixing seat 36 on the conveyor belt 1 by magnetic attraction, which can improve the stability and firmness of the conveyor belt 1 when conveying the feeding barrel 2. When the feeding barrel 2 contacts the curved surface of the guide block 35, the top of the feeding barrel 2 can push the guide block 35 to move upward along the inner side of the discharge pipe 24 and the inner side of the mounting ring 34, and compress the spring 38. When the top of the feeding barrel 2 contacts the outer side of the delivery pipe 39, the top of the feeding barrel 2 can push the delivery pipe 39 and the docking ball 40 to swing upward, and compress the coil spring 41. When the feeding barrel 2 is aligned with the discharge pipe 24, the material is assembled. The rebound force of the spring 38 causes the curved surface of the guide block 35 to abut against the top of the feed barrel 2, providing a seal for the top of the feed barrel 2. At the same time, the rebound force of the coil spring 41 causes the docking ball 40 and the delivery pipe 39 to swing downward and reset, so that the end of the delivery pipe 39 away from the docking ball 40 can be close to the inner side of the feed barrel 2. The raw material can be discharged downward from the discharge pipe 24 and enter the discharge cavity of the guide block 35, so that the raw material passes through the docking ball 40 and the delivery pipe 39 and is discharged downward along the inner side of the feed barrel 2, so that the raw material can smoothly enter the feed barrel 2, and the amount of raw material input does not exceed one half of the capacity of the feed barrel 2, to prevent the solution level in the feed barrel 2 from submerging the lower port of the delivery pipe 39 when unloading.

[0041] Example 4: Please refer to Figure 2-Figure 4 This embodiment further explains other embodiments. An annular cavity is provided on the inner side of the mounting plate 4 shown in the figure, and a sealing ring 25 in contact with the outer side of the distribution plate 7 is fixedly installed on the inner side of the annular cavity. Two through holes corresponding to the two openings of the mounting plate 4 are provided on the outer side of the sealing ring 25 to improve the sealing performance of the receiving barrel 8. Four guide rods 26 symmetrically distributed in the center are fixedly installed on one side of the chassis 13 close to the push rod 16. The guide rods 26 slide through the distribution plate 7. A limiting block 33 is fixedly installed on one end of the guide rod 26. A sliding groove for limiting the sliding of the guide rod 26 and the limiting block 33 is provided on the inner side of the distribution plate 7 to improve the stability of the movement of the chassis 13.

[0042] In this embodiment: when the chassis 13 moves, it can drive the guide rod 26 and the limit block 33 to move along the slide groove in the distribution plate 7, thereby improving the stability of the movement of the chassis 13 and keeping the chassis 13 moving in a horizontal state. When the distribution plate 7 rotates, it can drive the receiving barrel 8 to move along the inner side of the sealing ring 25, so that the sealing ring 25 can seal the receiving barrel 8 in the moving state, and the sealing ring 25 can be replaced accordingly according to the characteristics of the raw materials.

[0043] Example 5: Please refer to Figure 6-Figure 8, this embodiment further explains other embodiments. Two symmetrically distributed slide bars 27 are provided above and below the positioning seat 17 in the figure. Four limit blocks 33 close to the positioning seat 17 are fixedly connected to the four slide bars 27 respectively. A long groove for the slide bars 27 to limit the sliding of the slide bars 27 is provided on the outer side of the distribution plate 7, which is convenient for observing the movement of the chassis 13. An identification strip 28 is fixedly installed on the end of the slide bar 27 away from the guide rod 26. A scale strip 29 matching the identification strip 28 is provided on the outer side of the distribution plate 7, which is convenient for calculating the storage capacity of the receiving barrel 8. Turntables 30 are fixedly installed at both ends of the adjusting rod 18. A plurality of anti-slip strips symmetrically distributed along the center are provided on the outer side of the turntable 30, which is convenient for adjusting the adjusting rod 18.

[0044] In this embodiment: when the chassis 13 moves, the limit block 33 can be driven to move synchronously through the slide rod 27, so that the limit block 33 drives the slide rod 27 to move along the long groove on the distribution plate 7, and the slide rod 27 drives the identification bar 28 to move along the outside of the scale bar 29. The moving height of the chassis 13 is judged by the scale bar 29, which is convenient for calculating the storage capacity of the receiving barrel 8, and when adjusting the adjusting rod 18, the adjusting rod 18 can be rotated by the turntable 30 to improve the convenience of adjusting the adjusting rod 18.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A raw material quantitative delivery device for preparing special isocyanate, characterized in that: include: A conveyor belt (1) and a plurality of feeding cylinders (2) equidistantly arranged on the top of the conveyor belt (1); a feeding pipe (3) is arranged above the conveyor belt (1); a mounting plate (4) is arranged at the bottom of the feeding pipe (3); a discharge pipe (5) located above the feeding cylinder (2) is arranged at the bottom of the mounting plate (4); and two symmetrically distributed brackets (6) are fixedly installed between the outer side of the mounting plate (4) and the top of the conveyor belt (1); Also includes: A material distribution mechanism, used for quantitatively distributing the raw materials dropped from the feeding cylinder (2), the material distribution mechanism being installed on the inner side of the mounting plate (4); A quantity adjustment mechanism, used for adjusting the material discharge amount of the mounting plate (4), the quantity adjustment mechanism being installed on the inner side of the mounting plate (4); The plate fixing mechanism is used to improve the stability of material distribution of the mounting plate (4), and the plate fixing mechanism is installed on the outside of the mounting plate (4).

2. The device for quantitatively conveying raw materials for preparing special isocyanate according to claim 1, characterized in that: The material distribution mechanism comprises a material distribution plate (7) rotatably mounted on the inner side of the mounting plate (4), the outer side of the material distribution plate (7) contacts the inner side of the mounting plate (4), the outer side of the material distribution plate (7) is provided with two symmetrically distributed material receiving cavities, the inner side of the material receiving cavity is fixedly provided with a material receiving cylinder (8), the top and bottom of the mounting plate (4) are respectively provided with openings corresponding to the material receiving cavities, the feeding pipe (3) and the discharging pipe (5) are both connected through an annular seat (9) ) is docked with the mounting plate (4), the inner diameters of the feed pipe (3), the discharge pipe (5) and the receiving barrel (8) are the same, a rotating shaft (10) extending to the outside of the mounting plate (4) is fixedly installed on the outer side of the distribution plate (7), a mounting frame (11) is fixedly installed on the outer side of the mounting plate (4), a driving motor (12) is fixedly installed on the outer side of the mounting frame (11), and the output end of the driving motor (12) is fixedly connected to the rotating shaft (10).

3. The device for quantitatively conveying raw materials for preparing special isocyanate according to claim 2, characterized in that: The amount adjustment mechanism comprises a chassis (13) slidably mounted on the inner side of the material receiving barrel (8), the outer side of the chassis (13) contacts the inner side of the material receiving barrel (8), two symmetrically distributed moving blocks (14) are arranged on the inner side of the material distribution plate (7), a limiting cavity (31) for limiting the sliding of the moving blocks (14) is opened on the inner side of the material distribution plate (7), a bidirectional screw (15) is rotatably mounted between the inner sides of the two limiting cavities (31), the threads at both ends of the bidirectional screw (15) are respectively matched with the two moving blocks (14), and the two moving blocks (14) are arranged on the inner side of the material distribution plate (7). Four push rods (16) are fixedly installed between the block (14) and the two chassis (13) in a centrally symmetrical manner. The push rods (16) slide through the receiving barrel (8). A positioning seat (17) is fixedly installed on the side of the material distribution plate (7) away from the rotating shaft (10). An adjusting rod (18) is rotatably installed on the inner side of the positioning seat (17). A synchronous belt (19) is rotatably installed between the adjusting rod (18) and the bidirectional screw (15). An observation port (32) for adjusting the adjusting rod (18) is opened on the outer side of the mounting plate (4).

4. The device for quantitatively conveying raw materials for preparing special isocyanate according to claim 3, characterized in that: The fixed plate mechanism comprises two mounting plates (20) symmetrically arranged on both sides of the mounting plate (4); U-shaped rods (21) are fixedly installed on both sides of the mounting plate (4); the two ends of the two U-shaped rods (21) respectively slide through the surfaces of the two mounting plates (20); tension springs (22) are arranged at both ends of the U-shaped rods (21); the tension springs (22) are fixedly installed between the mounting plates (20) and the mounting plate (4); plug-in plates (23) are fixedly installed at both ends of the mounting plates (20); the plug-in plates (23) slide and extend to the inner side of the mounting plate (4); one end of the plug-in plate (23) away from the mounting plate (20) is an arc-shaped structure; and an arc-shaped groove for limiting the insertion of the plug-in plate (23) is provided on the outer side of the material distribution plate (7).

5. The device for quantitatively conveying raw materials for preparing special isocyanate according to claim 2, characterized in that: A discharge pipe (24) is fixedly installed at the bottom of the discharge pipe (5), the outer diameter of the discharge pipe (24) is smaller than the inner diameter of the feed barrel (2), a mounting ring (34) is fixedly installed on the inner side of the discharge pipe (24), a guide block (35) is slidably installed on the inner side of the mounting ring (34), both sides of the bottom of the guide block (35) are arc-shaped structures, the bottom of the guide block (35) extends to the bottom of the discharge pipe (24), a fixed seat (36) is fixedly installed at the bottom of the feed barrel (2), a magnetic suction socket is provided at the bottom of the fixed seat (36), and a plurality of magnetic suction sockets connected to the plurality of the conveyor belt (1) are fixedly installed on the conveyor belt (1). A magnetic socket (37) is matched with the magnetic socket at the bottom of the fixed seat (36); a spring (38) is fixedly installed between the outer side of the fixed seat (36) and the outer side of the guide block (35); a discharge cavity is opened at the top of the guide block (35); a feed pipe (39) is arranged on the inner side of the guide block (35); the feed pipe (39) is docked with the discharge cavity through a docking ball (40); two symmetrically distributed coil springs (41) are fixedly installed between the outer side of the docking ball (40) and the inner side of the guide block (35); a sliding cavity for limiting the sliding of the feed pipe (39) is opened at the bottom of the guide block (35).

6. The device for quantitatively conveying raw materials for preparing special isocyanate according to claim 2, characterized in that: An annular cavity is provided on the inner side of the mounting plate (4), and a sealing ring (25) is fixedly installed on the inner side of the annular cavity and contacts the outer side of the material distribution plate (7). The outer side of the sealing ring (25) is provided with two through holes corresponding to the two openings of the mounting plate (4).

7. The device for quantitatively conveying raw materials for preparing special isocyanate according to claim 3, characterized in that: Four guide rods (26) are fixedly installed on one side of the chassis (13) close to the push rod (16) and are distributed symmetrically with respect to the center. The guide rods (26) slide through the distribution plate (7). A limit block (33) is fixedly installed on one end of the guide rod (26). A sliding groove is provided on the inner side of the distribution plate (7) for the guide rods (26) and the limit block (33) to slide in a limited manner.

8. The device for quantitatively conveying raw materials for preparing special isocyanate according to claim 7, characterized in that: Two symmetrically distributed slide bars (27) are provided above and below the positioning seat (17); four limit blocks (33) close to the positioning seat (17) are respectively fixedly connected to the four slide bars (27); and a long groove for limiting the sliding of the slide bars (27) is provided on the outer side of the material distribution plate (7).

9. A raw material quantitative delivery device for special isocyanate preparation according to claim 8, characterized in that: An identification strip (28) is fixedly mounted on one end of the slide rod (27) away from the guide rod (26), and a scale strip (29) matching the identification strip (28) is provided on the outer side of the material distribution plate (7).

10. The device for quantitatively conveying raw materials for preparing special isocyanate according to claim 3, characterized in that: A rotating disk (30) is fixedly mounted on both ends of the adjusting rod (18), and a plurality of anti-slip strips distributed symmetrically with respect to the center are provided on the outer side of the rotating disk (30).

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