CN218938177U

CN218938177U - PVC material thermal stability testing machine for cable

Info

Publication number: CN218938177U
Application number: CN202223034380.XU
Authority: CN
Inventors: 张顺益
Original assignee: Dongguan Chengye Plastic Co ltd
Current assignee: Dongguan Chengye Plastic Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-04-28
Anticipated expiration: 2032-11-14

Abstract

The utility model discloses a thermal stability testing machine for a PVC material for a cable, which aims to solve the technical problems that the thermal stability testing machine for the PVC material for the cable in the prior art is difficult to realize the full mixing of the PVC material and heat conduction oil, and the PVC material is difficult to realize uniform heating and influences the test result. The testing machine comprises a bearing box and a testing box fixedly arranged at the upper end of the bearing box; the automatic test device is characterized in that a fixed box is fixedly arranged at the rear end of the bearing box, a fixed box is fixedly arranged at the upper end of the bearing box, congo red test paper is movably arranged on the inner wall of the fixed box, and a fixed block is fixedly arranged on the outer wall of the test box. This testing machine passes congo red test paper and places inside the test box with second cell body and first cell body, places the test box inside with the conduction oil, opens first electric heating pipe and second electric heating pipe and heats the conduction oil, opens the motor and drives the carousel and rotate, can improve the heating effect to the conduction oil, realizes the even heating of PVC material, improves the accuracy of test result.

Description

PVC material thermal stability testing machine for cable

Technical Field

The utility model belongs to the field of testing machines, and particularly relates to a PVC material thermal stability testing machine for cables.

Background

In the current cable production process, a thermal stability test is required to be carried out on a PVC material used in cable insulation or a sheath, a sample of a PVC blend or product is heated in an air-free state and is kept at a constant temperature for a specified period of time, whether the thermal stability of the PVC material is qualified or not is judged through a Congo red test paper color at the upper part of the sample, but the conventional thermal stability tester for the PVC material for the cable is difficult to realize the full mixing of the PVC material and heat conduction oil, and the PVC material is difficult to realize uniform heating, so that the test result is influenced.

At present, the utility model patent number CN202020614640.2 discloses a PVC material thermal stability testing machine for cables, which comprises a rectangular box body, wherein two vertical partition plates are arranged in the box body, the partition plates divide the box body into an electric control chamber, a heating chamber and a purifying chamber, a power switch, a temperature control switch, a stirring switch, a thermometer and a timer are arranged on a panel of the electric control chamber, a PVC material heating device and an air suction pipe for pumping flue gas in the heating chamber to the purifying chamber are arranged in the heating chamber, an active carbon filter tank connected with the air suction pipe is arranged in the purifying chamber, an exhaust pipe is connected with an exhaust port of the active carbon filter tank, and the tail end of the exhaust pipe is connected with the exhaust fan.

Therefore, aiming at the problem that the conventional PVC material thermal stability testing machine for cables is difficult to realize the thorough mixing of the PVC material and the heat conduction oil, the PVC material is difficult to realize uniform heating and the test result is influenced, the problem needs to be solved so as to realize that the PVC material thermal stability testing machine for cables can realize the thorough mixing of the PVC material and the heat conduction oil, realize the uniform heating of the PVC material and improve the test accuracy.

Disclosure of Invention

(1) Technical problem to be solved

Aiming at the defects of the prior art, the utility model aims to provide a PVC material thermal stability testing machine for cables, which aims at solving the technical problems that the existing PVC material thermal stability testing machine for cables is difficult to realize the full mixing of PVC materials and heat conduction oil, and the PVC materials are difficult to realize uniform heating and influence the testing result.

(2) Technical proposal

In order to solve the technical problems, the utility model provides a PVC material thermal stability testing machine for cables, which comprises a bearing box and a testing box fixedly arranged at the upper end of the bearing box; the electric heating device comprises a test box, and is characterized in that a fixing box is fixedly arranged at the rear end of the test box, a fixing box is fixedly arranged at the upper end of the test box, congo red test paper is movably arranged on the inner wall of the fixing box, a fixing block is fixedly arranged on the outer wall of the test box, a motor is fixedly arranged on the inner wall of the upper end of the test box, a rotary table is fixedly arranged at the upper end of an output shaft of the motor in a penetrating mode, a symmetrical first electric heating pipe is fixedly arranged at the upper end of the rotary table, a containing plate is movably arranged at the upper end of the rotary table, fixing columns are fixedly arranged at the upper end of the containing plate, a waste liquid outflow pipe is fixedly arranged at the upper end of the test box and the inner wall of the upper end in a penetrating mode, and an electric valve is fixedly arranged on the waste liquid outflow pipe.

When the testing machine of the technical scheme is used, PVC materials are placed in the containing plate in the testing box, the movable cover is placed at the upper end of the magnet ring, the air suction body is placed at the upper end of the pipe body, congo red test paper passes through the first groove body and the second groove body and is placed in the testing box, the heat conduction oil is placed in the testing box, the first electric heating pipe and the second electric heating pipe are started to heat the heat conduction oil, the motor is started to drive the turntable to rotate, the heating effect of the heat conduction oil can be improved, the PVC materials are heated uniformly, and the accuracy of the test result is improved.

Preferably, a movable cover is movably arranged above the test box, a pipe body is fixedly arranged at the upper end and the lower end of the movable cover in a penetrating mode, a gas suction body is movably arranged above the pipe body, and a connecting hose is fixedly connected to the upper end of the gas suction body. The arrangement of the pipe body and the air suction body can avoid the direct discharge of waste gas into the air during the test.

Preferably, the inner wall of the test box is fixedly provided with a magnet ring, and the inner wall of the test box is fixedly provided with second electric heating pipes which are uniformly distributed. The arrangement of the plurality of second electric heating pipes can realize the rapid heating of the heat conduction oil.

Preferably, the fixed box is internally and fixedly provided with an air pump, an air extraction port of the air pump is connected with a connecting hose, an exhaust gas discharge pipe is fixedly arranged on an air outlet port of the air pump, and one end of the exhaust gas discharge pipe penetrates through the fixed box and extends to the outside of the fixed box. The exhaust pump is started, waste gas generated during the test can be pumped to the waste gas discharge pipe, and the waste gas discharge pipe can be connected with waste gas treatment equipment to treat the waste gas.

Preferably, a fixed cylinder is fixedly arranged at the upper end of the turntable, and through holes which are uniformly distributed are formed in the inner wall and the outer wall of the fixed cylinder in a penetrating manner. The setting of fixed section of thick bamboo realizes the guard action to first electric heating pipe, and the setting of through-hole does benefit to first electric heating pipe with the quick heating of conduction oil.

Preferably, the wall layer of the containing plate is fixedly provided with a first magnet block, and the wall layer of the turntable is fixedly provided with a second magnet block. The first magnet block and the second magnet block are mutually magnetically adsorbed, so that the bearing plate can be stably placed at the upper end of the turntable.

Preferably, the first groove body is penetrated and arranged on the inner wall and the outer wall of the test box, the second groove body is penetrated and arranged on the front end and the rear end of the fixed block, and the third magnet block is movably arranged at the front end of the fixed block. After the Congo red test paper passes through the second groove body and the first groove body and is placed in the test box, the third magnet block can press the Congo red test paper on the fixed block made of the iron material, so that the Congo red test paper is stably placed.

(3) Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that: the testing machine provided by the utility model has the advantages that the Congo red test paper passes through the second groove body and the first groove body and is placed in the testing box, the heat conduction oil is placed in the testing box, the first electric heating pipe and the second electric heating pipe are started to heat the heat conduction oil, meanwhile, the motor is started to drive the turntable to rotate, the heating effect on the heat conduction oil can be improved, the uniform heating of the PVC material is realized, and the accuracy of a test result is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the description of the embodiments or the prior art will be briefly described, and it is apparent that the drawings in the following description are only one embodiment of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of the testing machine of the present utility model;

FIG. 2 is a cross-sectional view of a test chamber of one embodiment of the testing machine of the present utility model;

FIG. 3 is a schematic view of a partially enlarged structure of a turntable of an embodiment of the testing machine of the present utility model;

FIG. 4 is a schematic perspective view of a fixed block of an embodiment of the testing machine of the present utility model.

The marks in the drawings are: 1. a carrying case; 2. a fixed box; 3. a test chamber; 4. a magnet ring; 5. a movable cover; 6. a tube body; 7. sucking gas; 8. a connecting hose; 9. a fixed box; 10. congo red test paper; 11. a waste liquid outflow pipe; 12. a fixed block; 13. a first tank body; 14. a turntable; 15. a first electric heating tube; 16. a second electric heating tube; 17. an electric valve; 18. a motor; 19. an air extracting pump; 20. an exhaust gas discharge pipe; 21. a holding plate; 22. fixing the column; 23. a first magnet block; 24. the second magnet block; 25. a fixed cylinder; 26. a through hole; 27. a third magnet block; 28. and a second groove body.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present utility model easy to understand, the technical solutions in the embodiments of the present utility model are clearly and completely described below to further illustrate the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, not all versions.

Example 1

The specific embodiment is a PVC material thermal stability testing machine for cables, the schematic diagram of the three-dimensional structure of the testing machine is shown in fig. 1, the cross-sectional view of a testing box 3 of the testing machine is shown in fig. 2, and the testing machine comprises a bearing box 1 and the testing box 3 fixedly arranged at the upper end of the bearing box 1; the rear end of the bearing box 1 is fixedly provided with a fixed box 2, the upper end of the bearing box 1 is fixedly provided with a fixed box 9, the inner wall of the fixed box 9 is movably provided with Congo red test paper 10, the outer wall of the test box 3 is fixedly provided with a fixed block 12, the inner wall of the upper end of the bearing box 1 is fixedly provided with a motor 18, the upper end of an output shaft of the motor 18 penetrates through the bearing box 1 and is fixedly provided with a rotary table 14, the upper end of the rotary table 14 is fixedly provided with a symmetrical first electric heating pipe 15, the upper end of the rotary table 14 is movably provided with a containing plate 21, the upper end of the containing plate 21 is fixedly provided with a fixed column 22, the upper end and the inner wall of the upper end of the bearing box 1 are fixedly provided with a waste liquid outflow pipe 11, and the waste liquid outflow pipe 11 is fixedly provided with an electric valve 17.

For this embodiment, the movable cover 5 is made of iron material.

In order to realize collecting the waste gas that produces during the test, the activity of test chamber 3 top is provided with movable cover 5, and both ends run through fixed mounting has body 6 about the movable cover 5, and body 6 top activity is provided with getter body 7, and getter body 7 upper end fixedly connected with coupling hose 8, the inside fixed mounting of fixed box 2 has aspiration pump 19, and aspiration port and coupling hose 8 of aspiration pump 19 are connected, and fixed mounting has waste gas discharge pipe 20 on the outlet port of aspiration pump 19, and the outside that fixed box 2 was extended to is run through to waste gas discharge pipe 20's one end. The exhaust gas generated during the test can be pumped to the exhaust gas discharge pipe 20 by starting the air pump 19, and the exhaust gas discharge pipe 20 can be connected with an exhaust gas treatment device for use.

In order to realize the quick heating of the heat conduction oil in the test box 3, the inner wall of the test box 3 is fixedly provided with a magnet ring 4, the inner wall of the test box 3 is fixedly provided with uniformly distributed second electric heating pipes 16, the upper end of the turntable 14 is fixedly provided with a fixed cylinder 25, and the inner wall and the outer wall of the fixed cylinder 25 are penetrated and provided with uniformly distributed through holes 26.

In order to realize stable placement of the containing plate 21, a first magnet block 23 is fixedly arranged in the wall layer of the containing plate 21, and a second magnet block 24 is fixedly arranged in the wall layer of the turntable 14. The holding plate 21 can be stably placed at the upper end of the turntable 14 by utilizing the magnetic adsorption effect of the first magnet block 23 and the second magnet block 24, and the turntable 14 is made of steel.

In order to fix Congo red test paper 10, the inner and outer walls of test box 3 are penetrated and provided with first groove body 13, the front and back ends of fixed block 12 are penetrated and provided with second groove body 28, and the front end of fixed block 12 is movably provided with third magnet 27. The fixed block 12 is made of iron materials, and after the congo red test paper 10 passes through the second groove body 28 and the first groove body 13 and is placed in the test box 3, the congo red test paper 10 exposed to the outside is pressed on the fixed block 12 by the third magnet block 27, so that the congo red test paper 10 can be fixed.

The enlarged partial structure of the turntable 14 is shown in fig. 3, and the perspective structure of the fixed block 12 is shown in fig. 4.

When the testing machine of the technical scheme is used, congo red test paper 10 passes through the second groove body 28 and the first groove body 13 and is placed in the testing box 3, heat conduction oil is placed in the testing box 3, the movable cover 5 is placed at the upper end of the magnet ring 4, the air suction body 7 is placed at the upper end of the pipe body 6, the first electric heating pipe 15 and the second electric heating pipe 16 are started to heat the heat conduction oil, meanwhile, the motor 18 is started to drive the rotary table 14 to rotate, the heating effect of the heat conduction oil can be improved, the uniform heating of PVC materials is realized, the accuracy of a test result is improved, the exhaust gas generated during the test can be pumped to the exhaust gas discharge pipe 20 by starting the air pump 19, the exhaust gas discharge pipe 20 is connected to exhaust gas treatment equipment, the test exhaust gas can be treated, the Congo red test paper 10 exposed to the outside is pressed on the fixed block 12 by utilizing the third magnet block 27, and the fixing of the Congo red test paper 10 can be realized.

Having described the main technical features and fundamental principles of the present utility model and related advantages, it will be apparent to those skilled in the art that the present utility model is not limited to the details of the above exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The above detailed description is, therefore, to be taken in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments in terms of various embodiments, not every embodiment is described in terms of a single embodiment, but rather that the descriptions of embodiments are merely provided for clarity, and that the descriptions of embodiments in terms of various embodiments are provided for persons skilled in the art on the basis of the description.

Claims

1. The PVC material thermal stability testing machine for the cable comprises a bearing box and a testing box fixedly arranged at the upper end of the bearing box; the electric heating device is characterized in that a fixed box is fixedly arranged at the rear end of the bearing box, a fixed box is fixedly arranged at the upper end of the bearing box, congo red test paper is movably arranged on the inner wall of the fixed box, a fixed block is fixedly arranged on the outer wall of the test box, a motor is fixedly arranged on the inner wall of the upper end of the bearing box, a rotary table is fixedly arranged at the upper end of an output shaft of the motor in a penetrating manner, a symmetrical first electric heating pipe is fixedly arranged at the upper end of the rotary table, a containing plate is movably arranged at the upper end of the rotary table, a fixed column is fixedly arranged at the upper end of the containing plate, a waste liquid outflow pipe is fixedly arranged at the upper end of the bearing box and the inner wall of the upper end in a penetrating manner, and an electric valve is fixedly arranged on the waste liquid outflow pipe.

2. The PVC material thermal stability testing machine for cables according to claim 1, wherein a movable cover is movably arranged above the testing box, a pipe body is fixedly arranged at the upper end and the lower end of the movable cover in a penetrating mode, a gas suction body is movably arranged above the pipe body, and a connecting hose is fixedly connected to the upper end of the gas suction body.

3. The machine for testing the thermal stability of the PVC material for the cable according to claim 1, wherein the magnet ring is fixedly arranged on the inner wall of the test box, and the second electric heating pipes which are uniformly distributed are fixedly arranged on the inner wall of the test box.

4. The machine according to claim 1, wherein an air pump is fixedly installed in the fixing box, an air exhaust port of the air pump is connected with the connecting hose, an exhaust gas discharge pipe is fixedly installed on an air outlet port of the air pump, and one end of the exhaust gas discharge pipe penetrates through the fixing box and extends to the outside of the fixing box.

5. The machine for testing the thermal stability of the PVC material for the cable according to claim 1, wherein a fixed cylinder is fixedly arranged at the upper end of the turntable, and through holes which are uniformly distributed are formed in the inner wall and the outer wall of the fixed cylinder in a penetrating manner.

6. The machine according to claim 1, wherein the first magnet is fixedly installed in the wall layer of the holding plate, and the second magnet is fixedly installed in the wall layer of the turntable.

7. The machine for testing the thermal stability of the PVC material for the cable according to claim 1, wherein the inner wall and the outer wall of the test box are penetrated and provided with a first groove body, the front end and the rear end of the fixed block are penetrated and provided with a second groove body, and the front end of the fixed block is movably provided with a third magnet block.