A kind of polymerization inhibitor adding device and adding method

Abstract

The invention discloses an inhibitor adding device and an adding method, belonging to the technical field of material adding devices, wherein the inhibitor adding device comprises a turntable which can be raised and lowered, the outer sleeve of the turntable is provided with a support platform, the turntable is slidably equipped with a guide block, and a slider is provided above the guide block, a flow guide tube is provided at the guide block, and a limit axis is provided above the turntable; by arranging detection components on both sides of the slider, as the flow guide tube contacts the inner wall of the barrel body during a reciprocating movement, the detection components can be distributed at the two end positions of the limit axis, and the detection components can be clamped with the turntable, so that during the subsequent reciprocating movement of the slider, the flow guide tube can stir the raw materials in the barrel body with the largest diameter without contacting the inner wall of the barrel body, so that the inhibitor can be dispersed in the raw materials to the greatest extent.

Description

Technical Field

[0001] The invention relates to the technical field of material adding devices, and in particular to an inhibitor adding device and an adding method. Background Art

[0002] In order to prevent polymerization of olefin monomers during storage and transportation, a small amount of inhibitor is often added to the monomer and then removed before use.

[0003] Chinese patent CN218741432U discloses a polymerization inhibitor configuration device for distillation and purification, which sets the addition amount of polymerization inhibitor and olefin monomer through a PLC controller, and automatically stops adding the polymerization inhibitor and olefin monomer after the addition amount reaches the set value through a solenoid valve and an infrared liquid level sensor, thereby automatically controlling the addition amount of polymerization inhibitor and olefin monomer.

[0004] The above-mentioned device stirs the raw materials through the stirring blades provided, so that the inhibitor is evenly dispersed in the material. However, in actual use, the stirring mechanism is often separated and not assembled together with the container containing the material. When it comes to containers with different diameters, the stirring range in the above-mentioned device is difficult to match them, thereby affecting the dispersion of the inhibitor. In summary, the above-mentioned device still has room for improvement.

[0005] Therefore, it is necessary to provide an inhibitor adding device and an adding method to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide an inhibitor adding device and an adding method, so as to solve the problem that the existing device proposed in the above background technology stirs the raw materials by means of the provided stirring blades so that the inhibitor is evenly dispersed in the materials, but in actual use, the stirring mechanism is often separated and not assembled together with the container containing the materials. When it comes to containers with different diameters, the stirring range in the above device is difficult to match them.

[0007] Based on the above ideas, the present invention provides the following technical solutions: an inhibitor adding device, comprising a turntable capable of being raised and lowered, a support platform being provided on the outer sleeve of the turntable, a guide block being slidably mounted on the turntable, and a slider being provided above the guide block, a flow guide tube being provided at the guide block, a limit shaft being provided above the turntable, the limit shaft passing through the slider and rotatingly cooperating with the slider, and the slider being driven to move along its axial direction by the rotation of the limit shaft;

[0008] Detection components are provided on both sides of the slider. When the guide tube contacts the inner wall of the barrel body, the detection components can be retained and clamped on the turntable, so that the slider can slide between the two detection components, so that the guide tube does not contact the inner wall of the barrel body during the reciprocating movement of the slider.

[0009] As a further solution of the present invention: a spiral limiting groove is provided on the outer circumferential surface of the limiting shaft, a limiting block is elastically mounted on the sliding block and slidably cooperates with the limiting groove, a slope is provided on one end of the limiting block close to the limiting shaft, and the slope is arranged opposite to the side edge of the limiting groove.

[0010] As a further solution of the present invention: both end surfaces of the limiting shaft are fixedly sleeved with bevel gears, and the upper and lower sides of the limiting shaft are respectively provided with an upper gear ring and a lower gear ring meshing with the bevel gears, and both end surfaces of the limiting shaft are rotatably installed with connecting blocks, a base is installed on the support platform, and a first electromagnet is arranged below the base, the base is made of iron, and the base and the first electromagnet are elastically connected.

[0011] As a further solution of the present invention: the detection component includes a positioning block that is clamped with the slider, the positioning blocks are located on both sides of the slider and are symmetrical about the center of the slider, positioning grooves are provided on both sides of the top surface of the turntable, and the bottom surface of the positioning block is fixedly provided with a convex strip that slides with the positioning groove, the cross-section of the convex strip and the positioning groove are both set to T-shaped, a plurality of slots are evenly provided on the bottom surface of the positioning groove, and the bottom surface of the convex strip is fixedly provided with an insert block that cooperates with the slot.

[0012] As a further solution of the present invention: a detection block is elastically mounted on the slider, a second electromagnet is arranged between the detection block and the positioning block, clamping blocks are elastically arranged on both sides of the second electromagnet, the clamping blocks are made of iron, the positioning block and the detection block on one side close to the second electromagnet are provided with a clamping groove matching the clamping block, a detection unit is installed on the side of the positioning block close to the detection block, and a signal connection is provided between the detection unit and the above-mentioned first electromagnet.

[0013] As a further solution of the present invention: a rotating shaft is provided at one end of the limit block away from the limit axis, a spiral groove is provided on the outer circumference of the rotating shaft, a protrusion that slides with the spiral groove is fixedly provided on the limit block, the rotating shaft and the slider are connected through a one-way bearing, a pressure rod is fixedly installed on the outer circumference of the rotating shaft, two switches that cooperate with the pressure rod are provided on the slider, and the switch and the pressure rod are on the same horizontal plane, and the switch is electrically connected to the second electromagnet.

[0014] As a further solution of the present invention: an annular groove is provided on the top surface of the support platform, and the base is slidably disposed in the annular groove.

[0015] As a further solution of the present invention: the first electromagnet is fixedly installed on the inner bottom surface of the annular groove.

[0016] As a further solution of the present invention: an annular groove is provided at the top end surface of the annular groove, a protrusion which slides with the groove is fixedly provided on the connecting block, and the cross-sections of the protrusion and the groove are both set to be T-shaped.

[0017] A method for adding polymerization inhibitor using the above-mentioned polymerization inhibitor adding device comprises the following steps: moving a barrel containing raw materials to the bottom of a support platform, driving the support platform to move downward, so that a guide tube is inserted into the barrel; driving the limit shaft to revolve through a turntable, and during the rotation, the bevel gear can drive the limit shaft to rotate, thereby prompting the slider to move along the diameter of the limit shaft, and the guide tube can be used to stir the raw materials in the barrel.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging detection components on both sides of the slider, as the guide tube contacts the inner wall of the barrel body during a reciprocating movement, the detection components can be distributed at the two end positions of the limit axis, and the detection components can be engaged with the turntable, so that during the subsequent reciprocating movement of the slider, the guide tube can stir the raw materials in the barrel body with the largest diameter without contacting the inner wall of the barrel body, so that the inhibitor can be dispersed in the raw materials to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[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 limit shaft and the slider structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the rotating shaft and the supporting platform of the present invention;

[0023] Figure 4 It is a schematic diagram of the plug-in block and slot structure of the present invention;

[0024] Figure 5 is a cross-sectional view of a turntable and a support platform of the present invention;

[0025] Figure 6 The present invention Figure 5 A schematic diagram of the enlarged structure at point A;

[0026] Figure 7 It is a schematic diagram of the positioning block and the detection block structure of the present invention;

[0027] Figure 8 The present invention Figure 7 A schematic diagram of the enlarged structure at B;

[0028] Fig. 9 The present invention Figure 7 A schematic diagram of the enlarged structure at C;

[0029] Fig.10 It is a schematic diagram of the rotating shaft and the pressure rod structure of the present invention.

[0030] In the figure: 1, barrel; 2, belt; 3, connecting cylinder; 301, first notch; 4, limit shaft; 401, limit groove; 5, upper gear ring; 501, support rod; 6, slider; 601, slide rod; 7, guide pipe; 8, three-way pipe; 9, bevel gear; 10, connecting block; 11, base; 12, support table; 13, turntable; 1301, positioning groove; 1302, slot; 14, positioning block; 1401, convex strip; 1402, insert block; 15, guide block; 16, lower gear ring; 17, first electromagnet; 18, detection block; 19, limit block; 1901, inclined plane; 20, detection unit; 21, block; 22, second electromagnet; 23, convex block; 24, pressure rod; 25, rotating shaft; 2501, spiral groove; 26, switch. DETAILED DESCRIPTION

[0031] like Figure 1-Figure 4 As shown, a polymerization inhibitor adding device and adding method, comprising a turntable 13 that can be raised and lowered, a support platform 12 is provided on the outer periphery of the turntable 13, the turntable 13 is rotatably connected to the support platform 12, and the turntable 13 cannot move along the axial direction of the support platform 12, a guide block 15 is slidably mounted on the turntable 13, specifically, the guide block 15 can move along the diameter direction of the turntable 13 but cannot move in the vertical direction relative to the turntable 13, a slider 6 is provided above the guide block 15, and the slider 6 can move in the vertical direction relative to the guide block 15;

[0032] Furthermore, a limit shaft 4 is provided above the turntable 13, the limit shaft 4 passes through the slider 6 and rotates with it, and the rotation of the limit shaft 4 can drive the slider 6 to move along its axial direction, and two guide tubes 7 are provided at the guide block 15, the guide tube 7 passes through the guide block 15 and is fixedly connected thereto, and the guide tube 7 passes through the slider 6 and slides with the slider 6. Through this structure, when the turntable 13 rotates, the two guide tubes 7 can be driven to revolve, and the two guide tubes 7 can move along the diameter direction of the turntable 13. During actual use, the barrel body 1 filled with raw materials is moved to the bottom of the support platform 12. At this time, the support platform 12 is covered on the top of the barrel body 1, and the inhibitor is introduced into the barrel body 1 through the guide tube 7. According to the above description, the guide tube 7 can be stirred in a large range in the barrel body 1, which is conducive to more uniform dispersion of the inhibitor in the raw materials.

[0033] like Figure 2-Figure 10As shown, in order to drive the slider 6 to move during the rotation of the limit shaft 4, a spiral limit groove 401 is provided on the outer peripheral surface of the limit shaft 4, and a limit block 19 that slides with the limit groove 401 is elastically mounted on the slider 6. Figure 7 As shown, a slope 1901 is provided at one end of the limit block 19 close to the limit axis 4, and the slope 1901 is arranged opposite to the side edge of the limit groove 401. Through this structure, when the pressure between the slope 1901 on the limit block 19 and the side edge of the limit groove 401 increases, the limit block 19 can move out of the limit groove 401.

[0034] In order to drive the limiting shaft 4 to rotate, bevel gears 9 are fixedly sleeved on both end surfaces of the limiting shaft 4. In addition, an upper gear ring 5 and a lower gear ring 16 meshing with the bevel gear 9 are respectively arranged on the upper and lower sides of the limiting shaft 4. The engagement of the bevel gear 9 with the upper gear ring 5 or the lower gear ring 16 can change the rotation direction of the limiting shaft 4, thereby driving the slider 6 to move in different directions.

[0035] Furthermore, connecting blocks 10 are rotatably installed on both end surfaces of the limit shaft 4, and a base 11 is installed on the support platform 12. The connecting block 10 is located above the base 11 and slidably cooperates with the base 11. A first electromagnet 17 is arranged below the base 11. The first electromagnet 17 is fixedly installed on the support platform 12, and the above-mentioned base 11 can be made of iron, and the base 11 and the first electromagnet 17 are elastically connected. Through this structure, it is beneficial to drive the limit shaft 4 to move in the vertical direction, thereby prompting the bevel gear 9 to engage with the upper gear ring 5 or the lower gear ring 16.

[0036] Detection components are provided on both sides of the slider 6. When the guide tube 7 contacts the inner wall of the barrel body 1, the detection components can be retained and clamped on the turntable 13, so that the slider 6 can slide between the two detection components. This is beneficial for the guide tube 7 to obtain the maximum stirring range without touching the inner wall of the barrel body 1, thereby enabling the inhibitor to be mixed with the raw materials to the maximum extent.

[0037] The detection assembly includes a positioning block 14 that is engaged with the slider 6. The positioning block 14 is located on both sides of the slider 6 and is symmetrical about the center of the slider 6. Figure 3-4 As shown, positioning grooves 1301 are provided on both sides of the top surface of the rotating disk 13, and a convex strip 1401 that slides with the positioning groove 1301 is fixedly provided on the bottom surface of the positioning block 14. The cross-sections of the convex strip 1401 and the positioning groove 1301 are both set to be T-shaped, and the inner cavity size of the positioning groove 1301 is larger than the size of the convex strip 1401, so that the convex strip 1401 can move in the positioning groove 1301 along the vertical direction;

[0038] Furthermore, a plurality of slots 1302 are evenly arranged on the inner bottom surface of the positioning groove 1301, and an insert block 1402 matching with the slot 1302 is fixedly arranged on the bottom surface of the convex strip 1401. When the positioning block 14 is disconnected from the slider 6, the positioning block 14 can fall on the turntable 13 and engage with it, and then when the slider 6 moves to the positioning block 14 again, the moving direction of the slider 6 can be changed.

[0039] Reference Figure 7-10 As shown, a detection block 18 is elastically mounted on the slider 6, and the detection block 18 is a plate structure. A second electromagnet 22 is arranged between the detection block 18 and the positioning block 14, and the second electromagnet 22 is fixedly connected to the slider 6. Blocks 21 are elastically arranged on both sides of the second electromagnet 22, and the block 21 is made of iron. A slot matching the block 21 is provided on one side of the positioning block 14 and the detection block 18 close to the second electromagnet 22. In the initial state, one end of the block 21 is inserted into the slot, so that the detection block 18 and the positioning block 14 can be locked;

[0040] A detection unit 20 is installed on one side of the positioning block 14 close to the detection block 18. The detection unit 20 is signal-connected to the first electromagnet 17. The detection units 20 arranged on both sides of the slider 6 can control the first electromagnet 17 in linkage, that is, when one of the detection units 20 is triggered, the first electromagnet 17 is controlled (powered on or off) once. Specifically, the detection unit 20 can be a switch 26 or an infrared sensor or other component. When the detection block 18 coincides with the detection unit 20, the first electromagnet 17 can be controlled. Of course, the detection unit 20 and the first electromagnet 17 can be connected through a controller (such as a PLC or a single-chip microcomputer, etc.).

[0041] The end of the limit block 19 away from the limit shaft 4 is provided with a rotating shaft 25, and the outer peripheral surface of the rotating shaft 25 is provided with a spiral groove 2501, and the limit block 19 is fixedly provided with a protrusion 23. In the initial state, the protrusion 23 is slidably arranged in the spiral groove 2501, and the rotating shaft 25 is connected to the slider 6 through a one-way bearing, so that the rotating shaft 25 can only rotate in a single direction relative to the slider 6. Figure 8-9 As shown, a pressure rod 24 is fixedly installed on the outer circumferential surface of the rotating shaft 25, and the pressure rod 24 is located at the end of the rotating shaft 25 away from the limit block 19. Two switches 26 cooperating with the pressure rod 24 are arranged on the slider 6. The switch 26 is arranged near the chamfered end surface of the rotating shaft 25, and this switch 26 and the pressure rod 24 are on the same horizontal plane. The above-mentioned switch 26 is electrically connected to the second electromagnet 22. Through this structure, it is beneficial to control the two second electromagnets 22 on the slider 6.

[0042] In actual use, the barrel body 1 filled with raw materials is moved to the bottom of the support platform 12. At the same time, the support platform 12 is driven to move downward so that the guide tube 7 extends into the barrel body 1. The guide tube 7 is arranged to facilitate the addition of the inhibitor into the barrel body 1. When the turntable 13 rotates, the limit shaft 4 can rotate synchronously with the turntable 13, and in the initial state, the bevel gear 9 is meshed with the lower gear ring 16, so that during the rotation of the limit shaft 4, the meshing of the bevel gear 9 and the lower gear ring 16 can drive the limit shaft 4 to rotate by itself, and the cooperation of the limit block 19 and the limit groove 401 can make the limit shaft 4 rotate and drive the slider 6 to slide toward one end of the limit shaft 4, and stop moving when the guide tube 7 contacts the inner wall of the barrel body 1. At this time, the pressure between the inclined surface 1901 on the limit block 19 and the side edge of the limit groove 401 increases, so that the limit block 19 can be squeezed out of the limit groove 401. In this process, the limit block 19 will move relative to the rotating shaft 25. The provided protrusion 23 cooperates with the spiral groove 2501, so that the limit block 19 can drive the pressure rod 24 to rotate during the process of being compressed into the slider 6. When the pressure rod 24 is squeezed by one of the switches 26, it can drive one of the second electromagnets 22 to be in an energized state. At this time, the suction force of the second electromagnet 22 on the blocks 21 on both sides thereof can cause one end of the block 21 to move out of the slot, so that the positioning block 14 on one side of the slider 6 can be disengaged from the slider 6 and fall onto the turntable 13. When the positioning block 14 falls onto the turntable 13, the positioning block 14 can be locked on the turntable 13 through the cooperation of the insert block 1402 and the slot 1302. At the same time, the detection block 18 will also pop up and overlap with the detection unit 20, so that the first electromagnet 17 is in a de-energized state. At this time, the base 11 will pop up, so that the bevel gear 9 is engaged with the upper gear ring 5, so that the bevel gear 9 can drive the limit shaft 4 to rotate in the opposite direction. At this time, the limit shaft 4 will drive the slider 6 to move in the opposite direction. Similarly, when the slider 6 moves in the opposite direction so that the guide tube 7 contacts the inner wall of the barrel body 1, the limit block 19 will move out of the limit slot 401 again. During this process, the limit block 19 will continue to drive the rotating shaft 25 Rotate and make the pressure rod 24 contact with another switch 26, so as to control another second electromagnet 22 on the slider 6 to be energized, so that the positioning block 14 on the other side of the slider 6 is clamped on the turntable 13, and the detection block 18 on the other side of the slider 6 will also pop out and overlap with the positioning block 14 on the same side, so that the first electromagnet 17 is in a energized state, so as to drive the base 11 and the limit shaft 4 to move downward through the suction force on the base 11. At this point, the bevel gear 9 on the limit shaft 4 is meshed with the lower gear ring 16 again, and the positioning blocks 14 are distributed at both ends of the limit shaft 4. Repeat the above operation, so that the bevel gear 9 can be alternately meshed with the upper gear ring 5 and the lower gear ring 16, thereby driving the slider 6 to move back and forth;

[0043] Since the detection block 18 is in a pop-up state, when the slider 6 moves to the vicinity of the positioning block 14 next time, the guide tube 7 will overlap with the detection unit 20 without being in contact with the inner wall of the barrel body 1. Through this structure, the guide tube 7 can be stirred in the barrel body 1 to the maximum extent without contacting the inner wall of the barrel body 1, thereby evenly dispersing the inhibitor in the raw material.

[0044] In summary, this device is provided with detection components on both sides of the slider 6. As the guide tube 7 contacts the inner wall of the barrel body 1 during a reciprocating movement, the detection components can be distributed at the two end positions of the limit shaft 4, and the detection components can be engaged with the turntable 13, so that during the subsequent reciprocating movement of the slider 6, the guide tube 7 can stir the raw materials in the barrel body 1 with the largest diameter without contacting the inner wall of the barrel body 1, so that the inhibitor can be dispersed in the raw materials to the greatest extent.

[0045] like Figure 1-Figure 4 As shown, in order to drive the turntable 13 to rotate, in this solution, an annular connecting tube 3 is fixedly installed on the top surface of the turntable 13, and a first slot 301 is opened at the bottom end of the connecting tube 3 to avoid interference with the slider 6 when it moves. A motor is fixedly installed on the outside of the support platform 12, and pulleys can be fixedly installed on the outside of the connecting tube 3 and the motor output shaft. Belts 2 are provided on the outside of the two pulleys to drive the turntable 13 to rotate.

[0046] The lower gear ring 16 is fixedly mounted on the top surface of the support platform 12, while the upper gear ring 5 is fixedly connected to the support platform 12 via an L-shaped support rod 501. A boss is fixedly provided on the outer circumferential surface of the support platform 12, and a hydraulic rod 24 is provided under the boss. The telescopic end of the hydraulic rod 24 is fixedly connected to the boss, thereby driving the support platform 12 to move in the vertical direction.

[0047] The top surface of the support platform 12 is provided with an annular groove, and the base 11 is slidably arranged in the annular groove, and the first electromagnet 17 is fixedly installed on the inner bottom surface of the annular groove. In addition, an annular groove is provided at the top end surface of the annular groove, and a protrusion that slides with the groove is fixedly arranged on the connecting block 10, and the cross-sections of the protrusion and the groove are both set to T-shaped. A three-way pipe 8 is fixedly installed on the top of the guide pipe 7, and an external hose for conveying the inhibitor is connected to the three-way pipe 8 through a joint, and the three-way pipe 8 can rotate relative to the external hose.

[0048] Reference Figure 5As shown, a support spring is fixedly provided between the first electromagnet 17 and the base 11, a slide rod 601 is fixedly provided on the bottom surface of the slider 6, and a mounting groove for slidingly fitting the slide rod 601 is provided on the top end surface of the guide block 15. The cross-sections of the slide rod 601 and the mounting groove are both polygonal. In actual use, a plurality of conical through holes can be provided on the outer peripheral surface of the guide tube 7 to facilitate dispersing the inhibitor into the raw material at different heights.

[0049] In actual use, a through guide groove is opened at the center of the turntable 13, and the guide block 15 is slidably set in the guide groove. Specifically, the cross-sections of the guide groove and the guide block 15 can be set to a "cross" shape, so that the guide block 15 can slide stably relative to the turntable 13.

[0050] The slider 6 is provided with a sliding groove that slidably cooperates with the positioning block 14 and the detection block 18, and the two sliding grooves are connected to each other. A first spring is fixedly arranged between the inner end surface of the sliding groove and the detection block 18. A through groove is provided between the two sliding grooves, and the above-mentioned second electromagnet 22 is fixedly arranged at the through groove, and the clamping block 21 is slidably arranged at the two ends of the through groove, and a second spring is fixedly arranged between the clamping block 21 and the second electromagnet 22.

[0051] The slider 6 is provided with a through hole that cooperates with the limit shaft 4, and a second notch that slides with the limit block 19 is provided on the inner wall of the through hole, a baffle is fixedly arranged on the inner wall of the second notch, and a limit spring is fixedly arranged between the baffle and the limit block 19. A blind hole is provided on the end face of the limit block 19 away from the limit shaft 4, and the above-mentioned protrusion 23 is fixedly arranged on the inner wall of the blind hole. The above-mentioned switch 26 connected to the second electromagnet 22 is installed at the second notch, and one end of the above-mentioned rotating shaft 25 extends from the bottom end of the second notch into the slider 6 and rotates with it.

Claims

1. A polymerization inhibitor adding device, comprising a turntable capable of being raised and lowered, a support platform being arranged on the outer periphery of the turntable, a guide block being slidably mounted on the turntable, and a slider being arranged above the guide block, and a flow guide pipe being arranged at the guide block, characterized in that: A limit shaft is arranged above the rotating disk, the limit shaft passes through the slider and rotates with it, and the slider can be driven to move along its axial direction through the rotation of the limit shaft; Detection components are provided on both sides of the slider. When the guide tube contacts the inner wall of the barrel containing the raw materials, the detection components can be retained and clamped on the turntable, so that the slider can slide between the two detection components, so that the guide tube does not contact the inner wall of the barrel during the reciprocating movement of the slider; A spiral limiting groove is provided on the outer peripheral surface of the limiting shaft, a limiting block is elastically mounted on the slider and is slidably matched with the limiting groove, an inclined surface is provided at one end of the limiting block close to the limiting shaft, and the inclined surface is arranged opposite to the side edge of the limiting groove; Both end surfaces of the limiting shaft are fixedly sleeved with bevel gears, and upper and lower sides of the limiting shaft are respectively provided with upper and lower gear rings meshing with the bevel gears, and both end surfaces of the limiting shaft are rotatably installed with connecting blocks, and a base is installed on the support platform, and a first electromagnet is arranged below the base, and the base is made of iron, and the base and the first electromagnet are elastically connected; The detection assembly includes a positioning block that is engaged with the slider, the positioning blocks are located on both sides of the slider and are symmetrical about the center of the slider, positioning grooves are provided on both sides of the top surface of the turntable, and a convex strip that is slidably matched with the positioning groove is fixedly provided on the bottom surface of the positioning block, and the cross-sections of the convex strip and the positioning groove are both set to be T-shaped, and a plurality of slots are evenly provided on the bottom surface of the positioning groove, and an insert block that is matched with the slot is fixedly provided on the bottom surface of the convex strip; A detection block is elastically mounted on the slider, a second electromagnet is arranged between the detection block and the positioning block, a card block is elastically mounted on both sides of the second electromagnet, the card block is made of iron, a card slot matching the card block is provided on the side of the positioning block and the detection block close to the second electromagnet, a detection unit is mounted on the side of the positioning block close to the detection block, and a signal connection is provided between the detection unit and the first electromagnet; A rotating shaft is provided at one end of the limit block away from the limit axis, and a spiral groove is provided on the outer circumference of the rotating shaft. A protrusion that slides with the spiral groove is fixedly provided on the limit block. The rotating shaft and the slider are connected through a one-way bearing. A pressure rod is fixedly installed on the outer circumference of the rotating shaft. Two switches that cooperate with the pressure rod are provided on the slider, and the switch and the pressure rod are on the same horizontal plane. The switch is electrically connected to the second electromagnet.

2. The device for adding polymerization inhibitor according to claim 1, characterized in that: The top surface of the support platform is provided with an annular groove, and the base is slidably arranged in the annular groove.

3. The device for adding polymerization inhibitor according to claim 2, characterized in that: The first electromagnet is fixedly mounted on the inner bottom surface of the annular groove.

4. The device for adding polymerization inhibitor according to claim 2, characterized in that: An annular groove is provided at the top end surface of the annular groove, and a protrusion that slidably cooperates with the groove is fixedly provided on the connecting block, and the cross sections of the protrusion and the groove are both set to be T-shaped.

5. A method for adding a polymerization inhibitor using the polymerization inhibitor adding device as claimed in any one of claims 1 to 4, characterized in that: The method comprises the following steps: moving a barrel containing raw materials to the bottom of a support platform, driving the support platform to move downward, so that a guide tube is inserted into the barrel; driving the limit shaft to revolve through a turntable, and during the rotation, the bevel gear can drive the limit shaft to rotate, thereby prompting the slider to move along the diameter of the limit shaft, and the guide tube can be used to stir the raw materials in the barrel.

Images