Sampling device for production of dioctyl cyclohexanedicarboxylate

Abstract

The utility model discloses a cyclohexane dioctyl phthalate production sampling device which comprises a machine shell, a PLC (programmable logic controller) is mounted on the outer side wall of the machine shell, a motor is mounted at the bottom end in the machine shell, the output end of the motor is connected with a worm, and one end of the worm is meshed and connected with a worm gear. During operation, the motor is started, and the driving frame can be driven to move up and down along with the nut seat connected to the machine shell in a sliding mode by matching with the transmission effect of the screw rod and the nut seat; according to the present invention, the driving frame is arranged between the motor and the screw rod, such that the sampling bottle at the bottom of the driving frame can be driven to be inserted into or separated from the corresponding cyclohexane dioctyl phthalate reaction kettle, and the sampling depth of the sampling bottle in the cyclohexane dioctyl phthalate reaction kettle can be automatically changed; the self-locking effect generated when the worm gear reversely drives the worm is utilized, it is guaranteed that the lead screw is not loosened, and the stability of the driving frame when the driving frame is static is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of cyclohexanedicarboxylate production and processing technology, specifically to a sampling device for cyclohexanedicarboxylate production. Background Technology

[0002] Dioctyl cyclohexanedicarboxylate, as an environmentally friendly plasticizer, can replace traditional phthalate plasticizers, thereby reducing harm to the environment and health. It has good heat resistance, cold resistance and migration resistance, and is suitable for the plastics industry, wire and cable, and automotive interiors. In actual production, in order to monitor the reaction process and product quality, staff need to use a dioctyl cyclohexanedicarboxylate production sampling device.

[0003] Sampling devices for the production of dioctyl cyclohexanedicarboxylate often require manual operation to determine the sampling depth, as they are not easily automated and thus have poor functionality. Based on this, we propose a novel sampling device for the production of dioctyl cyclohexanedicarboxylate that can automatically take samples from different locations in the reactor, ensuring that the samples are representative. Utility Model Content

[0004] The purpose of this invention is to provide a sampling device for the production of dioctyl cyclohexanedicarboxylate, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sampling device for the production of dioctyl cyclohexanedicarboxylate, comprising a housing, a PLC controller mounted on the outer wall of the housing, a motor mounted at the bottom of the housing, a worm gear connected to the output end of the motor, a worm wheel meshing with one end of the worm gear, a lead screw welded to the middle position of the top of the worm wheel, a nut seat threaded onto the lead screw, a drive frame welded onto the nut seat, a sampling bottle threaded to the bottom end of the drive frame, a telescopic cylinder and a radar liquid level sensor sequentially mounted inside the drive frame above the sampling bottle, a connecting arm connected to the output end of the telescopic cylinder, a rubber seal at the bottom end of the connecting arm, a sampling port at the top of the sampling bottle, a positioning block at the top of the housing, and a laser rangefinder sensor matching the positioning block mounted on the drive frame.

[0006] Preferably, one side of the housing is provided with a guide groove that matches the nut seat, and the nut seat and the housing form a sliding connection.

[0007] Preferably, the output end of the radar level sensor extends into the top of the sampling bottle.

[0008] Preferably, the top of the sampling bottle is fixed with a threaded assembly post, and the drive frame is provided with a threaded assembly slot that is threadedly connected to the threaded assembly post.

[0009] Preferably, a switch valve is installed on the sampling port.

[0010] Preferably, the casing is made of aluminum alloy.

[0011] Preferably, the laser rangefinder and the drive frame are connected by screws to form a disassembly and installation structure.

[0012] Preferably, the drive frame sidewall has a wiring cavity inside.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The sampling device for the production of dioctyl cyclohexanedicarboxylate has optimized its structure by installing a motor, etc. On the one hand, starting the motor and cooperating with the transmission action of the lead screw and nut seat can drive the drive frame to move up and down with the nut seat that is slidably connected to the housing. This can drive the sampling bottle at the bottom of the drive frame to be inserted into or removed from the corresponding dioctyl cyclohexanedicarboxylate reactor. It can also automatically change the sampling depth of the sampling bottle inside the dioctyl cyclohexanedicarboxylate reactor. In addition, by adding a transmission structure consisting of a worm and a worm wheel between the motor and the lead screw, the self-locking effect generated by the worm wheel driving the worm in the opposite direction is used to ensure that the lead screw will not loosen and to ensure the stability of the drive frame when it is stationary. On the other hand, the laser ranging sensor set on the drive frame at the same height as the sampling port of the sampling bottle will monitor the distance between itself and the positioning block at the same height as the highest point inside the dioctyl cyclohexanedicarboxylate reactor in real time through the laser ranging principle. Then, the monitored data is sent to the PLC controller to facilitate its intelligent control of the sampling depth, ensuring that the sample is representative and improving the sampling accuracy.

[0015] (2) The sampling device for the production of dioctyl cyclohexanedicarboxylate is equipped with a telescopic cylinder, which optimizes the performance of the device. When the telescopic cylinder is activated, it drives the connecting arm to extend, so that the rubber seal at the bottom of the arm moves away from the sampling port. This can release the blocking effect on the sampling port and facilitate the material inside the reactor to enter the sampling bottle. At the same time, the radar level sensor will monitor the depth of the sample inside the sampling bottle in real time. When the preset range is reached, the telescopic cylinder is activated to drive the rubber seal at the bottom of the connecting arm to press the sampling port to achieve the blocking effect. At this time, the drive mechanism on the drive frame will be activated, driving the sampling bottle to rise to detach from the dioctyl cyclohexanedicarboxylate reactor. Finally, the user can close the switch valve on the sampling port and then use the threaded connection between the threaded assembly pin and the threaded assembly slot to remove the sampling bottle after sampling. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention;

[0017] Figure 2 This is a top view cross-sectional structural diagram of the casing of this utility model;

[0018] Figure 3 This is a schematic diagram of a partial cross-sectional view of the sampling bottle of this utility model.

[0019] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0020] Figure 5 This is a front view structural diagram of the sampling bottle of this utility model in its disassembled state.

[0021] In the diagram: 1. PLC controller; 2. Guide slide; 3. Lead screw; 4. Positioning block; 5. Drive frame; 6. Sampling bottle; 7. Housing; 8. Worm gear; 9. Threaded assembly ferrule; 10. Motor; 11. Worm gear; 12. Radar level sensor; 13. Threaded assembly slot; 14. Telescopic cylinder; 15. Connecting arm; 16. Rubber seal; 17. Switch valve; 18. Nut seat; 19. Laser rangefinder sensor; 20. Sampling port. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figure 1-5 One embodiment of this utility model is a sampling device for the production of dioctyl cyclohexanedicarboxylate, which includes a housing 7 and a PLC controller 1 installed on the outer wall of the housing 7.

[0024] A motor 10 is installed at the bottom inside the housing 7. The output end of the motor 10 is connected to a worm 8. One end of the worm 8 is meshed with a worm wheel 11. A lead screw 3 is welded at the middle position of the top of the worm wheel 11. A nut seat 18 is threaded onto the lead screw 3. A drive frame 5 is welded onto the nut seat 18.

[0025] The bottom end of the drive frame 5 is threadedly connected to a sampling bottle 6. Inside the drive frame 5 above the sampling bottle 6, a telescopic cylinder 14 and a radar liquid level sensor 12 are installed in sequence. The output end of the telescopic cylinder 14 is connected to a connecting arm 15. The bottom end of the connecting arm 15 is provided with a rubber seal 16. The top end of the sampling bottle 6 is provided with a sampling port 20.

[0026] In use, the telescopic cylinder 14 is activated, which drives the connecting arm 15 to extend, so that the rubber seal 16 at its bottom moves away from the sampling port 20. This can release the sealing effect on the sampling port 20 and facilitate the material inside the reactor to enter the sampling bottle 6. At the same time, the radar level sensor 12 will monitor the depth of the sample inside the sampling bottle 6 in real time. When the preset range is reached, the telescopic cylinder 14 is activated to drive the rubber seal 16 at the bottom of the connecting arm 15 to press the sampling port 20 to achieve the sealing effect. At this time, the drive mechanism on the drive frame 5 will be activated, which will drive the sampling bottle 6 to rise to the point of detachment from the dioctyl cyclohexanedicarboxylate reactor. Finally, the user can close the switch valve 17 on the sampling port 20 and then use the threaded connection between the threaded mounting post 9 and the threaded mounting groove 13 to remove the sampling bottle 6 after sampling.

[0027] A positioning block 4 is provided at the top of the housing 7, and a laser rangefinder 19 that matches the positioning block 4 is installed on the drive frame 5.

[0028] A guide groove 2 matching the nut seat 18 is provided on one side of the housing 7, and the nut seat 18 and the housing 7 form a sliding connection.

[0029] In use, starting the motor 10, in conjunction with the transmission action of the lead screw 3 and the nut seat 18, can drive the drive frame 5 to move up and down with the nut seat 18 which is slidably connected to the housing 7. This can drive the sampling bottle 6 at the bottom of the drive frame 5 to insert or detach from the corresponding dioctyl cyclohexane dicarboxylate reactor, and can also automatically change the sampling depth of the sampling bottle 6 inside the dioctyl cyclohexane dicarboxylate reactor. Furthermore, by adding a transmission structure consisting of a worm gear 8 and a worm wheel 11 between the motor 10 and the lead screw 3, the self-locking effect generated by the worm wheel 11 driving the worm gear 8 in the reverse direction is used to ensure that the lead screw 3 will not loosen, thus ensuring the stability of the drive frame 5 when it is stationary.

[0030] The output end of the radar level sensor 12 extends into the top of the sampling bottle 6;

[0031] The top of the sampling bottle 6 is fixed with a threaded assembly post 9, and the drive frame 5 is provided with a threaded assembly groove 13 that is threadedly connected to the threaded assembly post 9.

[0032] A switch valve 17 is installed on the sampling port 20;

[0033] The casing 7 is made of aluminum alloy;

[0034] The laser rangefinder 19 and the drive frame 5 are connected by screws to form a disassembly and installation structure.

[0035] The drive frame 5 has a wiring cavity inside its side wall.

[0036] In this embodiment, during use: First, the user installs the housing 7 near the dioctyl cyclohexanedicarboxylate reactor using screws, and reserves a corresponding sampling position on the top of the reactor. Then, the user starts the motor 10, which, in conjunction with the transmission action of the lead screw 3 and the nut seat 18, drives the drive frame 5 to move up and down with the nut seat 18 slidably connected to the housing 7. This allows the sampling bottle 6 at the bottom of the drive frame 5 to be inserted into or detached from the corresponding dioctyl cyclohexanedicarboxylate reactor. The sampling depth of the sampling bottle 6 inside the dioctyl cyclohexanedicarboxylate reactor is automatically changed. Furthermore, a laser rangefinder 19, mounted on the drive frame at the same height as the sampling port 20 of the sampling bottle 6, monitors the distance between itself and the positioning block 4 at the same height as the highest point inside the dioctyl cyclohexanedicarboxylate reactor using laser ranging principles. The monitored data is then sent to the PLC controller 1 for intelligent control of the sampling depth, ensuring sample representativeness and improving sampling accuracy. Additionally, the motor 10 and... A transmission structure consisting of a worm gear 8 and a worm wheel 11 is added between the lead screw 3 and the worm rod 3. The self-locking effect generated by the worm wheel 11 driving the worm gear 8 in the reverse direction ensures that the lead screw 3 will not loosen and ensures the stability of the drive frame 5 when stationary. During the sampling process, the telescopic cylinder 14 is activated, which drives the connecting arm 15 to extend, so that the rubber seal 16 at its bottom moves away from the sampling port 20. This releases the blockage of the sampling port 20 and facilitates the entry of materials from inside the reactor into the sampling bottle 6. At the same time, the radar liquid level sensor... 12 will monitor the depth of the sample entering the sampling bottle 6 in real time. When the preset range is reached, the telescopic cylinder 14 will be activated to drive the rubber seal 16 at the bottom of the connecting arm 15 to press the sampling port 20 to achieve the sealing effect. At this time, the drive mechanism on the drive frame 5 will be activated to drive the sampling bottle 6 to rise to the point of detachment from the dioctyl cyclohexanedicarboxylate reactor. Finally, the user can close the switch valve 17 on the sampling port 20 and then use the threaded connection between the threaded mounting post 9 and the threaded mounting groove 13 to remove the sampling bottle 6 after sampling.

Claims

1. A cyclohexane dicarboxylic acid dioctyl ester production sampling device characterized by, The utility model relates to a sampling bottle automatic sampling device, including casing (7), the outer side wall of casing (7) is equipped with PLC controller (1), the bottom of casing (7) inside is equipped with motor (10), the output of motor (10) is connected with worm (8), one end of worm (8) is engaged with worm gear (11), and the middle position of the top of worm gear (11) is welded with lead screw (3), the nut seat (18) is screwed on lead screw (3), the driving frame (5) is welded on nut seat (18), the bottom of driving frame (5) is connected with sampling bottle (6), the inside of driving frame (5) above sampling bottle (6) is installed telescopic cylinder (14) and radar liquid level sensor (12) in proper order, the output of telescopic cylinder (14) is connected with connecting arm (15), the bottom of connecting arm (15) is provided with rubber sealing element (16), the top of sampling bottle (6) is provided with sampling port (20), the top of casing (7) is provided with locating block (4), the driving frame (5) is installed laser ranging sensor (19) and locating block (4) match.

2. A cyclohexane dicarboxylic acid dioctyl ester production sampling device according to claim 1, characterized in that: One side of casing (7) is provided with guide sliding slot (2) and nut seat (18) match, and sliding connection is formed between nut seat (18) and casing (7).

3. A cyclohexane dicarboxylic acid dioctyl ester production sampling device as claimed in claim 1, characterized in that: The output of radar liquid level sensor (12) extends into the top of sampling bottle (6) inside.

4. The cyclohexane dicarboxylic acid dioctyl ester production sampling device of claim 1, wherein: The top of sampling bottle (6) is fixed with threaded assembly clamping post (9), and threaded assembly clamping groove (13) is arranged on the driving frame (5) and is screwed with threaded assembly clamping post (9).

5. A cyclohexane dicarboxylic acid dioctyl ester production sampling device as claimed in claim 1, characterized in that: Switch valve (17) is installed on sampling port (20).

6. A cyclohexane dicarboxylic acid dioctyl ester production sampling device as claimed in claim 1, characterized in that: The material of casing (7) is aluminum alloy.

7. A cyclohexane dicarboxylic acid dioctyl ester production sampling device as claimed in claim 1, characterized in that: The laser ranging sensor (19) and driving frame (5) are detachably connected through screws.

8. A cyclohexane dicarboxylic acid dioctyl ester production sampling device as claimed in claim 1, characterized in that: The inside of the side wall of driving frame (5) is provided with wiring cavity.

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