Fixed-point discharging mechanism of adsorption tower for preparing propionic acid

Abstract

The utility model relates to the technical field of propionic acid preparation, and discloses an adsorption tower fixed-point blanking mechanism for propionic acid preparation, which comprises a base, one side of the upper end face of the base is fixedly connected with a positioning frame, the top end of the positioning frame is provided with a lifting driving assembly, the inner side of the positioning frame is slidably connected with two fixing frames, and the two fixing frames are arranged up and down. A hopper is fixedly connected to the inner sides of the two fixing frames, a discharging pipe is fixedly connected to the bottom end of the hopper, four supporting columns are fixedly connected to the top end of the base, a supporting plate is fixedly connected between the four supporting columns, and a fixed-point driving assembly is arranged on the supporting plate. A sliding rod moves in a sliding groove through rotation of a cross rotating block, the sliding rod moves to drive a first transmission rod, a connecting block and a second transmission rod to move, and therefore a positioning block moves on the horizontal plane, and it is ensured that the positioning block can accurately position a collecting box.

Description

Technical Field

[0001] The utility model relates to the technical field of propionic acid preparation, and particularly relates to a fixed-point blanking mechanism for an adsorption tower used in propionic acid preparation. Background Art

[0002] As an important fine chemical and basic chemical raw material, propionic acid has a wide range of application fields, such as food, feed, rubber, plastics, coatings, spices, medicine, pesticides, printing, etc. When preparing propionic acid, filling operations need to be carried out through a blanking machine.

[0003] After retrieval, a Chinese patent with the publication number of CN213726360U discloses a fixed-point blanking mechanism for an adsorption tower used in propionic acid preparation, which includes a base, a placement table, a column, a discharge pipe, a hopper, and an operating machine. The column is welded on the top of the base. The placement table and the hopper are sequentially arranged on the front surface of the column from bottom to top and are fixedly connected to the column. The discharge pipe is welded to the bottom of the hopper. Thus, people can adjust the position of the blanking pipe in real time according to the filling height, which is convenient for people to carry out filling and blanking operations. Push the sliding sleeve, and the sliding sleeve drives the baffle through the gasket to extend and move in the card slot of the blanking pipe to a suitable position, exposing the through slot of the blanking pipe. The material in the blanking pipe is shunted by the fixing block and flows out through the through slot of the blanking pipe. Thus, people can adjust the position of the baffle in real time by pushing the sliding sleeve to realize the adjustment of the blanking speed.

[0004] There are some drawbacks in the existing device during use. For example: in the above solution, the position of the collection box for collecting propionic acid cannot be fixed at a specific point. In actual operation, if the position of the collection box is not fixed or cannot be accurately aligned with the blanking port, it will cause propionic acid to splash out or cannot be accurately collected. Due to the lack of fixed-point positioning of the collection box, operators may need to manually adjust the position of the collection box to ensure that propionic acid can flow in accurately. This not only increases the complexity of the operation but also may affect the collection efficiency due to the error of manual adjustment. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a fixed-point blanking mechanism for an adsorption tower used in propionic acid preparation to solve the problem that the position of the collection box for collecting propionic acid cannot be fixed at a specific point.

[0006] The utility model provides the following technical solution: a fixed-point blanking mechanism for an adsorption tower used in the preparation of propionic acid, including a base, one side of the upper end surface of the base is fixedly connected with a positioning frame, a lifting drive assembly is arranged at the top of the positioning frame, two fixed frames are slidably connected inside the positioning frame, the two fixed frames are arranged up and down, a hopper is fixedly connected inside the two fixed frames, a discharge pipe is fixedly connected to the bottom end of the hopper, four support columns are fixedly connected to the top of the base, a support plate is fixedly connected between the four support columns, a fixed-point drive assembly is arranged on the support plate, and a fixed-point assembly is arranged on the workbench fixed to the top ends of the four support columns.

[0007] In the above solution, through the combination of the positioning frame and the fixed-point assembly, the device can accurately position the hopper (and the propionic acid therein) to a predetermined working point. The design of the discharge pipe enables the propionic acid flowing out of the hopper to pass through a fixed channel, thereby realizing precise control of the blanking process. This ensures that the propionic acid can be accurately delivered to the required position, improving the accuracy and efficiency of production. The designs of the lifting drive assembly and the fixed-point drive assembly allow users to adjust the relative position between the hopper and the workbench according to actual needs. This flexibility enables the device to adapt to blanking requirements at different heights and positions, improving the versatility and practicality of the device. The structural design of the four support columns and the support plate enhances the stability of the entire device, ensuring that there will be no shaking or displacement during operation.

[0008] As a preference of the above technical solution, the lifting drive assembly includes a first drive motor fixedly connected to the top of the positioning frame. The output end of the first drive motor is fixedly connected with a threaded lead screw. The threaded lead screw vertically penetrates the top of the positioning frame and is rotatably connected to the positioning frame. The end of the threaded lead screw away from the first drive motor is rotatably connected to the base. Threaded holes are respectively opened in the two fixed frames, and the threaded lead screw is threadedly connected to the two fixed frames through the corresponding threaded holes.

[0009] In the above solution, by driving the rotation of the threaded lead screw with the first drive motor, the lifting movement of the fixed frame and the hopper can be accurately controlled, so as to ensure that the hopper can accurately reach the required blanking height.

[0010] As a preference of the above technical solution, the fixed-point drive assembly includes a second drive motor fixedly connected to the bottom end of the support plate. The output end of the second drive motor is fixedly connected with a rotating shaft. The rotating shaft vertically penetrates the support plate and is rotatably connected to the support plate.

[0011] In the above solution, by driving the fixed-point assembly with the second drive motor driving the rotating shaft, it can be ensured that the collection box is accurately placed at a predetermined position to receive the propionic acid flowing out of the discharge pipe.

[0012] Preferably, as the above technical solution, the fixed-point component includes a cross-shaped rotating block arranged at the bottom end of the workbench. The cross-shaped rotating block is provided with four sliding grooves. Four sliding rods adapted to the sizes of the four sliding grooves are respectively arranged inside the four sliding grooves. The bottom ends of the four sliding rods are respectively fixedly connected with first transmission rods. First sliding blocks are respectively sleeved on the outer sides of the four first transmission rods. The top ends of the four first sliding blocks are fixedly connected with the bottom end of the workbench. The ends of the four first transmission rods far from the sliding rods are respectively fixedly connected with connecting blocks. Second transmission rods are respectively fixedly connected to one side wall of the top of the four connecting blocks. Second sliding blocks are respectively sleeved on the outer sides of the four second transmission rods. One side wall of each of the four second sliding blocks is fixedly connected with the corresponding four outer walls of the workbench. The ends of the four second transmission rods far from the connecting blocks are fixedly connected with positioning blocks.

[0013] In the above solution, the rotation of the cross-shaped rotating block causes the sliding rods to move in the sliding grooves. The movement of the sliding rods drives the movement of the first transmission rods, connecting blocks, and second transmission rods, so that the positioning blocks move on the horizontal plane, thereby ensuring that the positioning blocks can accurately position the collection box. The respective settings of the first sliding blocks and the second sliding blocks form a stable support structure. This design ensures the stability of the first transmission rods, connecting blocks, and second transmission rods during the working process, reduces vibration and deviation, and further improves the reliability of positioning.

[0014] Preferably, as the above technical solution, the top end of the rotating shaft is fixedly connected with the bottom end of the cross-shaped rotating block.

[0015] In the above solution, the rotation of the rotating shaft can drive the cross-shaped rotating block to rotate.

[0016] Preferably, as the above technical solution, an annular groove is opened at the bottom end of the workbench. An annular slider adapted to the size of the annular groove is fixedly connected to the top end of the cross-shaped rotating block. The cross-shaped rotating block is rotationally connected to the workbench through the annular slider.

[0017] In the above solution, the matching design of the annular groove and the annular slider ensures the stable rotation of the cross-shaped rotating block on the workbench. This design reduces the shaking and deviation during the rotation process and improves the structural stability of the entire fixed-point component.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] In the present utility model, the rotation shaft is driven by the second driving motor, thereby controlling the rotation of the cross-shaped rotating block, causing the sliding rod to move within the sliding groove, thereby driving the movement of the first transmission rod, the connecting block, and the second transmission rod, and ultimately achieving the precise movement of the positioning block on the horizontal plane. This design improves the accuracy and efficiency of positioning, and further ensures that the positioning block can accurately position the collection box. The design of the first sliding block and the second sliding block ensures the stability of the first transmission rod, the connecting block, and the second transmission rod during operation. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of a fixed-point blanking mechanism for an adsorption tower used in the preparation of propionic acid;

[0021] Figure 2 It is a schematic diagram of the structure of the lifting drive assembly in a fixed-point blanking mechanism for an adsorption tower used in the preparation of propionic acid;

[0022] Figure 3 It is a schematic diagram of the partial sectional structure in a fixed-point blanking mechanism for an adsorption tower used in the preparation of propionic acid;

[0023] Figure 4 It is a schematic diagram of the structure of the fixed frame in a fixed-point blanking mechanism for an adsorption tower used in the preparation of propionic acid;

[0024] Figure 5 It is a schematic diagram of the structure of the fixed-point drive assembly in a fixed-point blanking mechanism for an adsorption tower used in the preparation of propionic acid;

[0025] Figure 6 It is a schematic diagram of the structure of the fixed-point assembly in a fixed-point blanking mechanism for an adsorption tower used in the preparation of propionic acid;

[0026] Figure 7 It is a schematic diagram of the structure of the workbench in a fixed-point blanking mechanism for an adsorption tower used in the preparation of propionic acid;

[0027] Figure 8 It is Figure 3 The enlarged view at A in

[0028] Figure 9 It is a schematic diagram of the connection structure between the rotating shaft and the cross-shaped rotating block in a fixed-point blanking mechanism for an adsorption tower used in the preparation of propionic acid.

[0029] In the figure: 10, base; 11, positioning frame; 12, fixing frame; 13, hopper; 14, discharge pipe; 15, support column; 16, support plate; 17, workbench; 20, first driving motor; 21, threaded lead screw; 22, threaded hole; 30, second driving motor; 31, rotating shaft; 40, cross rotating block; 41, sliding groove; 42, sliding rod; 43, first transmission rod; 44, first sliding block; 45, connecting block; 46, second transmission rod; 47, second sliding block; 48, positioning block; 50, annular groove; 51, annular sliding block. Detailed implementation manner

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] Embodiment 1

[0032] As Figure 1 、 Figure 2 and Figure 3 shown, the present invention provides a technical solution: a fixed-point blanking mechanism for an adsorption tower used in the preparation of propionic acid, including a base 10. One side of the upper end surface of the base 10 is fixedly connected with a positioning frame 11. A lifting drive assembly is arranged at the top of the positioning frame 11. Two fixing frames 12 are slidably connected inside the positioning frame 11. The two fixing frames 12 are arranged up and down. A hopper 13 is fixedly connected inside the two fixing frames 12. The bottom end of the hopper 13 is fixedly connected with a discharge pipe 14. Four support columns 15 are fixedly connected to the top end of the base 10. A support plate 16 is fixedly connected between the four support columns 15. A fixed-point drive assembly is arranged on the support plate 16. Four support columns 15 are fixedly connected to the top end of the workbench 17. A fixed-point assembly is arranged on the workbench 17. In the specific use process, through the combination of the positioning frame 11 and the fixed-point assembly, the device can accurately position the hopper 13 and the propionic acid therein to a predetermined working point. The design of the discharge pipe 14 enables the propionic acid flowing out of the hopper 13 to pass through a fixed channel, thereby realizing the precise control of the blanking process. This ensures that the propionic acid can be accurately put to the required position, improving the accuracy and efficiency of production. The designs of the lifting drive assembly and the fixed-point drive assembly allow the user to adjust the relative position between the hopper 13 and the workbench 17 according to actual needs. This flexibility enables the device to adapt to the blanking requirements at different heights and positions, improving the versatility and practicability of the device. The structural design of the four support columns 15 and the support plate 16 enhances the stability of the entire device, ensuring that there will be no shaking or displacement during the operation process.

[0033] As an implementation manner in this embodiment, as Figure 2 and Figure 4As shown in the figure, the lifting drive assembly includes a first drive motor 20 fixedly connected to the top end of the positioning frame 11. The output end of the first drive motor 20 is fixedly connected with a threaded lead screw 21. The threaded lead screw 21 vertically penetrates the top end of the positioning frame 11 and is rotationally connected to the positioning frame 11. The end of the threaded lead screw 21 away from the first drive motor 20 is rotationally connected to the base 10. Threaded holes 22 are respectively formed in the two fixed frames 12. The threaded lead screw 21 is threadedly connected to the two fixed frames 12 through the corresponding threaded holes 22. In the specific use process, by driving the rotation of the threaded lead screw 21 by the first drive motor 20, the lifting movement of the fixed frame 12 and the hopper 13 can be accurately controlled, so as to ensure that the hopper 13 can accurately reach the required blanking height.

[0034] As an implementation manner in this embodiment, as Figure 5 shown in the figure, the fixed-point drive assembly includes a second drive motor 30 fixedly connected to the bottom end of the support plate 16. The output end of the second drive motor 30 is fixedly connected with a rotating shaft 31. The rotating shaft 31 vertically penetrates the support plate 16 and is rotationally connected to the support plate 16. In the specific use process, by driving the rotating shaft 31 by the second drive motor 30 to drive the fixed-point assembly, it can ensure that the collection box is accurately placed at a predetermined position to receive the propionic acid flowing out of the discharge pipe 14.

[0035] As an implementation manner in this embodiment, as Figure 3 、 Figure 6 and Figure 8As shown in the figure, the fixed-point component includes a cross-shaped rotating block 40 arranged at the bottom end of the workbench 17. The cross-shaped rotating block 40 is provided with four sliding grooves 41. Four sliding rods 42 adapted to the sizes of the four sliding grooves 41 are respectively arranged inside the four sliding grooves 41. The bottom ends of the four sliding rods 42 are respectively fixedly connected with first transmission rods 43. First sliding blocks 44 are respectively sleeved on the outer sides of the four first transmission rods 43. The top ends of the four first sliding blocks 44 are fixedly connected with the bottom end of the workbench 17. One ends of the four first transmission rods 43 far away from the sliding rods 42 are respectively fixedly connected with connecting blocks 45. One side walls of the tops of the four connecting blocks 45 are respectively fixedly connected with second transmission rods 46. Second sliding blocks 47 are respectively sleeved on the outer sides of the four second transmission rods 46. One side walls of the four second sliding blocks 47 are respectively fixedly connected with the four outer walls of the workbench 17 corresponding thereto. One ends of the four second transmission rods 46 far away from the connecting blocks 45 are fixedly connected with positioning blocks 48. In the specific use process, the rotation of the cross-shaped rotating block 40 causes the sliding rods 42 to move in the sliding grooves 41. The movement of the sliding rods 42 drives the movement of the first transmission rods 43, the connecting blocks 45 and the second transmission rods 46, so that the positioning blocks 48 move on the horizontal plane, thereby ensuring that the positioning blocks 48 can accurately position the collection box. The respective settings of the first sliding blocks 44 and the second sliding blocks 47 form a stable support structure. This design ensures the stability of the first transmission rods 43, the connecting blocks 45 and the second transmission rods 46 during the working process, reduces vibration and offset, and further improves the reliability of positioning.

[0036] As an implementation manner in this embodiment, as Figure 9 shown, the top end of the rotating shaft 31 is fixedly connected with the bottom end of the cross-shaped rotating block 40. In the specific use process, the rotation of the rotating shaft 31 can drive the cross-shaped rotating block 40 to rotate.

[0037] As an implementation manner in this embodiment, as Figure 6 and Figure 7 shown, an annular groove 50 is opened at the bottom end of the workbench 17. An annular sliding block 51 adapted to the size of the annular groove 50 is fixedly connected to the top end of the cross-shaped rotating block 40. The cross-shaped rotating block 40 is rotationally connected with the workbench 17 through the annular sliding block 51. In the specific use process, the adapted design of the annular groove 50 and the annular sliding block 51 ensures the stable rotation of the cross-shaped rotating block 40 on the workbench 17. This design reduces the shaking and offset during the rotation process and improves the structural stability of the entire fixed-point component.

[0038] Working principle: Start the first driving motor 20 to drive the threaded lead screw 21 to rotate. The rotation of the threaded lead screw 21 drives the fixed frame 12 and the hopper 13 to perform lifting movements. According to needs, the lifting height of the hopper 13 is accurately controlled through the control system until the hopper 13 reaches the required blanking position. Then start the second driving motor 30 to drive the rotating shaft 31 to drive the cross rotating block 40 to rotate. Through the rotation of the cross rotating block 40, the sliding rod 42 moves in the sliding groove 41. The movement of the sliding rod 42 drives the movement of the first transmission rod 43, the connecting block 45 and the second transmission rod 46, so that the positioning block 48 moves on the horizontal plane, thereby ensuring that the positioning block 48 can accurately position the collection box. The first sliding block 44 and the second sliding block 47 provide a stable support structure to ensure the stability of the first transmission rod 43, the connecting block 45 and the second transmission rod 46 during the working process. When both the hopper 13 and the collection box reach the predetermined positions, open the discharge port of the hopper 13, and propionic acid flows into the collection box through the discharge pipe 14.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it.

Claims

1. A fixed-point unloading mechanism for an adsorption tower for preparing propionic acid, comprising a base (10), characterized in that: A positioning frame (11) is fixedly connected to one side of the upper end surface of the base (10), a lifting drive assembly is arranged at the top of the positioning frame (11), two fixed frames (12) are slidably connected to the inner side of the positioning frame (11), the two fixed frames (12) are arranged up and down, a hopper (13) is fixedly connected to the inner side of the two fixed frames (12), a discharge pipe (14) is fixedly connected to the bottom end of the hopper (13), four support columns (15) are fixedly connected to the top of the base (10), a support plate (16) is fixedly connected between the four support columns (15), a fixed-point drive assembly is arranged on the support plate (16), a workbench (17) is fixedly connected to the top of the four support columns (15), and a fixed-point assembly is arranged on the workbench (17).

2. The fixed-point feeding mechanism of the adsorption tower for preparing propionic acid according to claim 1, characterized in that: The lifting drive assembly comprises a first driving motor (20) fixedly connected to the top of the positioning frame (11); the output end of the first driving motor (20) is fixedly connected to a threaded screw (21); the threaded screw (21) vertically penetrates the top of the positioning frame (11) and is rotatably connected to the positioning frame (11); one end of the threaded screw (21) away from the first driving motor (20) is rotatably connected to the base (10); the two fixed frames (12) are respectively provided with threaded holes (22); the threaded screw (21) is threadably connected to the two fixed frames (12) through the corresponding threaded holes (22).

3. The fixed-point feeding mechanism of the adsorption tower for preparing propionic acid according to claim 1, characterized in that: The fixed-point driving assembly comprises a second driving motor (30) fixedly connected to the bottom end of the supporting plate (16); an output end of the second driving motor (30) is fixedly connected to a rotating shaft (31); the rotating shaft (31) vertically penetrates the supporting plate (16) and is rotatably connected to the supporting plate (16).

4. The fixed-point feeding mechanism of the adsorption tower for preparing propionic acid according to claim 1, characterized in that: The fixed point assembly comprises a cross rotating block (40) arranged at the bottom end of the workbench (17), the cross rotating block (40) is provided with four sliding grooves (41), the inner sides of the four sliding grooves (41) are respectively provided with four sliding rods (42) adapted to the size of the four sliding grooves (41), the bottom ends of the four sliding rods (42) are respectively fixedly connected with a first transmission rod (43), the outer sides of the four first transmission rods (43) are respectively slidably sleeved with a first sliding block (44), the top ends of the four first sliding blocks (44) are respectively fixed with the bottom of the workbench (17), and the bottom ends of the four first sliding blocks (44) are respectively fixed with the bottom of the workbench (17). The ends of the four first transmission rods (43) are fixedly connected, one end of the four first transmission rods (43) away from the sliding rod (42) is fixedly connected with a connecting block (45), one side wall of the top of the four connecting blocks (45) is fixedly connected with a second transmission rod (46), the outer sides of the four second transmission rods (46) are respectively slidably sleeved with a second sliding block (47), one side wall of the four second sliding blocks (47) is respectively fixedly connected to four outer walls corresponding to the workbench (17), and one end of the four second transmission rods (46) away from the connecting block (45) is fixedly connected with a positioning block (48).

5. The fixed-point unloading mechanism for the adsorption tower for preparing propionic acid according to claim 3, characterized in that: The top end of the rotating shaft (31) is fixedly connected to the bottom end of the cross rotating block (40).

6. A fixed-point unloading mechanism for an adsorption tower for preparing propionic acid according to claim 4, characterized in that: The bottom end of the workbench (17) is provided with an annular groove (50), the top end of the cross rotating block (40) is fixedly connected with an annular sliding block (51) adapted to the size of the annular groove (50), and the cross rotating block (40) is rotatably connected to the workbench (17) via the annular sliding block (51).

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