Temperature resistance detection equipment for PVC (polyvinyl chloride) sizing material

Abstract

The utility model discloses temperature-resistant detection equipment for PVC (polyvinyl chloride) sizing materials, which belongs to the technical field of temperature-resistant detection and comprises a high-temperature detection box, a limiting tray is fixedly mounted in the high-temperature detection box and consists of a supporting plate and four positioning columns, the positioning columns are symmetrically and fixedly mounted at the upper end of the supporting plate, and the upper end of the supporting plate is fixedly connected with the limiting tray. A driving assembly is fixedly installed on the inner wall of the lower side of the high-temperature detection box and composed of driving equipment and a connecting plug pin, the connecting plug pin is fixedly installed at the upper end of an output shaft of the driving equipment, a sample containing tray is installed on the limiting tray and composed of a base plate, an annular net and a sleeve, and the sleeve is located on the inner side of the base plate; by arranging the limiting tray, the driving assembly, the sample containing tray and the telescopic pushing assembly, one face of each PVC sample particle can be prevented from making contact with the annular net for a long time, finally, the PVC sample particles can be evenly heated, and then the accuracy of the temperature resistance detection result of the PVC sample particles can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature resistance detection, in particular to a temperature resistance detection device for PVC rubber materials. Background Art

[0002] PVC, short for polyvinyl chloride, is a polymer material formed by the polymerization of vinyl chloride monomer. Due to its excellent durability, waterproofness, insulation, and relatively low price, PVC is widely used in various fields. Testing the heat resistance of PVC primarily examines changes in its physical and chemical properties at different temperatures. As a common plastic material, PVC has limited heat resistance. Pure PVC generally has a temperature resistance range of -10°C to 60°C, maintaining excellent physical properties within this range. However, when temperatures exceed this range, PVC's properties may change. In particular, when temperatures rise above 80°C, PVC's mechanical properties significantly deteriorate, and it may even soften. At even higher temperatures, PVC may decompose, producing harmful gases such as hydrogen chloride. Testing PVC heat resistance involves placing a PVC sample in a predetermined high-temperature environment. Changes in morphology, color, and dimensions are observed and recorded to assess its heat resistance. When PVC sample particles are placed in a high-temperature testing box for temperature resistance testing, the side of the PVC sample particles that contacts the container holding them will not be easily heated, which will cause uneven heating of the PVC sample particles, and in turn will lead to poor accuracy of the temperature resistance test results of the PVC sample particles. Therefore, a temperature resistance testing device for PVC rubber is needed to solve the above problem. Utility Model Content

[0003] The main purpose of the utility model is to provide a temperature resistance testing device for PVC rubber materials, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A temperature resistance testing device for PVC rubber, comprising a high-temperature testing box, wherein a limit tray is fixedly installed in the high-temperature testing box, wherein the limit tray consists of a support plate and a positioning column, wherein the positioning column has four and is symmetrically fixedly installed on the upper end of the support plate, wherein a driving assembly is fixedly installed on the lower inner wall of the high-temperature testing box, wherein the driving assembly consists of a driving device and a connecting pin, wherein the connecting pin is fixedly installed on the upper end of the output shaft of the driving device, wherein a sample holding tray is installed on the limit tray, wherein the sample holding tray consists of a base plate, an annular net and a sleeve, wherein the sleeve is located on the base plate On the inner side, the annular net connects the sleeve to the substrate, and a retractable pushing assembly is fixedly installed on the upper inner wall of the high-temperature detection box. The retractable pushing assembly consists of a fixed rod, a telescopic rod, a fixed ring, a connecting head, a rotating arm and a pushing rod. The telescopic rod is movably installed in the fixed rod, the fixed ring is fixedly sleeved on the upper part of the fixed rod, the connecting head is fixedly installed on the lower end of the telescopic rod, there are three rotating arms and they are distributed in a ring shape on the outer wall of the connecting head, there are several fixed rods and they are respectively fixed on the lower ends of the three rotating arms, and the connecting head can be sleeved on the connecting pin.

[0006] Preferably, a protective door is installed on the high temperature detection box.

[0007] Preferably, the support plate on the limiting tray is fixedly mounted on the inner wall of the high-temperature detection box, and the support plate is provided with a through hole.

[0008] Preferably, the driving device on the driving assembly is fixedly mounted on the lower inner wall of the high-temperature detection box, and the connecting pin passes upward through a through hole provided on the supporting plate.

[0009] Preferably, the substrate on the sample holding tray is placed on the upper end of the support plate, and four positioning holes are symmetrically provided on the substrate. The substrate is sleeved on four positioning columns through the positioning holes. A mounting groove is provided on the substrate and between the four positioning holes. The sleeve and the annular net are both located in the mounting groove. The annular net is fixedly installed on the inner wall of the mounting groove and the outer wall of the sleeve at the same time. The sleeve is sleeved on the output shaft of the driving device and the outside of the connecting pin.

[0010] Preferably, the fixing ring on the retractable pushing assembly is fixedly mounted on the upper inner wall of the high temperature detection box, the connecting head is located below the fixing rod, a connecting groove is provided at the lower end of the connecting head, and the connecting head is sleeved on the connecting pin through the connecting groove.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By setting a limit tray, a drive component, a sample holding tray and a retractable pushing component, when conducting a temperature resistance test, the PVC sample particles can be placed on the annular net on the sample holding tray, and then the connector on the retractable pushing component can be connected to the connecting pin on the drive component. Then, when the protective door is closed to heat the PVC sample particles, the drive component can be started, so that the drive component can be used to drive the telescopic rod, the connector, the rotating arm, and the push rod to rotate. At this time, the rotating push rod will push the PVC sample particles, thereby turning the PVC sample particles over, thereby avoiding one side of the PVC sample particles from contacting the annular net for a long time, and ultimately allowing the PVC sample particles to be heated evenly, thereby improving the accuracy of the temperature resistance test results of the PVC sample particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic structural diagram of the high-temperature detection box, limit tray and drive assembly of the utility model;

[0015] Figure 3 This is a schematic structural diagram of a sample holding tray of the present invention;

[0016] Figure 4 It is a schematic structural diagram of the fixed rod and fixed ring after being cut away;

[0017] Figure 5 This is a schematic diagram of the structure of the connector and the connecting pin after being separated.

[0018] In the figure: 1. High-temperature testing box; 2. Limit tray; 3. Drive assembly; 4. Sample holding tray; 5. Retractable push assembly; 6. Protective door; 7. Support plate; 8. Positioning column; 9. Perforation; 10. Drive device; 11. Connecting pin; 12. Base plate; 13. Positioning hole; 14. Mounting slot; 15. Ring net; 16. Sleeve; 17. Fixed rod; 18. Telescopic rod; 19. Fixed ring; 20. Connector; 21. Rotating arm; 22. Push rod; 23. Connecting slot. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5As shown, a temperature resistance testing device for PVC rubber material includes a high-temperature testing box 1, a protective door 6 is installed on the high-temperature testing box 1, a limit tray 2 is fixedly installed in the high-temperature testing box 1, the limit tray 2 is composed of a support plate 7 and a positioning column 8, there are four positioning columns 8 and they are symmetrically fixedly installed on the upper end of the support plate 7, a driving component 3 is fixedly installed on the lower inner wall of the high-temperature testing box 1, the driving component 3 is composed of a driving device 10 and a connecting pin 11, the connecting pin 11 is fixedly installed on the upper end of the output shaft of the driving device 10, a sample holding tray 4 is installed on the limit tray 2, the sample holding tray 4 is composed of a base plate 12, an annular net 15 and a sleeve 16, the sleeve 16 is located on the inner side of the base plate 12, the annular net 15 and the sleeve 16 15 connects the sleeve 16 to the base plate 12. A retractable push assembly 5 is fixedly installed on the upper inner wall of the high-temperature detection box 1. The retractable push assembly 5 consists of a fixed rod 17, a telescopic rod 18, a fixed ring 19, a connector 20, a rotating arm 21 and a push rod 22. The telescopic rod 18 is movably installed in the fixed rod 17. The fixed ring 19 is fixedly sleeved on the upper part of the fixed rod 17. The connector 20 is fixedly installed at the lower end of the telescopic rod 18. There are three rotating arms 21 and they are distributed in an annular shape on the outer wall of the connector 20. There are several fixed rods 17 and they are fixedly installed at the lower ends of the three rotating arms 21. The connector 20 can be sleeved on the connecting pin 11. When the temperature resistance test of PVC rubber is performed, P The VC sample particles are placed on the annular net 15 on the sample holding tray 4, and then the sample holding tray 4 can be placed on the limit tray 2, and then the driving telescopic rod 18, the connecting head 20, the rotating arm 21, and the pushing rod 22 on the telescopic pushing component 5 are pulled downward, so that the connecting head 20 is sleeved on the connecting pin 11 through the connecting groove 23. At this time, the pushing rod 22 can contact the PVC sample particles placed on the annular net 15, and then the protective door 6 is closed, and then the high-temperature detection box 1 is used to heat the PVC sample particles. During this process, the driving device 10 on the driving component 3 can be started. At this time, the driving device 10 will drive the telescopic rod 18, the connecting head 20 and the rotating arm 21 through the connecting pin 11. 0, the rotating arm 21 and the pushing rod 22 rotate, and as the pushing rod 22 rotates, the pushing rod 22 will push the PVC sample particles, thereby turning the PVC sample particles over, thereby preventing one side of the PVC sample particles from contacting the annular net 15 for a long time, and ultimately allowing the PVC sample particles to be heated evenly, thereby improving the accuracy of the temperature resistance test results of the PVC sample particles; when the temperature resistance test of the PVC sample particles is completed, the protective door 6 can be opened, and then the telescopic rod 18, the connecting head 20, the rotating arm 21, and the pushing rod 22 can be pushed upward, and then the sample holding tray 4 can be removed from the limit tray 2, and finally the PVC sample particles can be taken out of the sample holding tray 4.

[0021] Furthermore, the support plate 7 on the limiting tray 2 is fixedly mounted on the inner wall of the high-temperature detection box 1, and a through hole 9 is opened on the support plate 7. The driving device 10 on the driving assembly 3 is fixedly mounted on the lower inner wall of the high-temperature detection box 1, and the connecting pin 11 passes upward through the through hole 9 opened on the support plate 7. The base plate 12 on the sample holding tray 4 is placed on the upper end of the support plate 7. Four positioning holes 13 are symmetrically opened on the base plate 12. The base plate 12 is sleeved on the four positioning columns 8 through the positioning holes 13. A mounting groove 14 is opened on the base plate 12 and between the four positioning holes 13. The sleeve 16 and the annular net 15 are both located in the mounting groove 14. The annular net 1 5 is fixedly mounted on the inner wall of the mounting groove 14 and the outer wall of the sleeve 16. The sleeve 16 is sleeved on the output shaft of the driving device 10 and the outer side of the connecting pin 11. When the sample holding tray 4 is placed on the limiting tray 2, the base plate 12 needs to be sleeved on the positioning column 8 through the positioning hole 13 and the base plate 12 is located at the upper end of the supporting plate 7. At this time, the limiting tray 2 can limit the sample holding tray 4. At the same time, the sleeve 16 will be sleeved on the connecting pin 11 and the output shaft of the driving device 10. When the high-temperature detection box 1 heats the PVC sample particles, the mesh on the annular net 15 is conducive to promoting heat transfer.

[0022] Furthermore, the fixing ring 19 on the telescopic pushing assembly 5 is fixedly installed on the upper inner wall of the high-temperature detection box 1, and the connecting head 20 is located below the fixed rod 17. A connecting groove 23 is provided at the lower end of the connecting head 20. The connecting head 20 is sleeved on the connecting pin 11 through the connecting groove 23, and the telescopic rod 18 can move up and down and rotate on the fixed rod 17. Therefore, when the connecting head 20 is sleeved on the connecting pin 11 through the connecting groove 23, under the drive of the driving device 10, the telescopic rod 18, the connecting head 20, the rotating arm 21, and the pushing rod 22 will produce horizontal rotation. At this time, the telescopic rod 18 will rotate on the fixed rod 17, and the rotating pushing rod 22 will push the PVC sample particles on the annular net 15 to move, and the PVC sample particles will flip over during the movement.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. The scope of protection claimed in this utility model is defined by the attached claims and their equivalents.

Claims

1. A temperature resistance testing device for PVC rubber, comprising a high temperature testing box (1), characterized in that: A limiting tray (2) is fixedly installed in the high-temperature detection box (1), and the limiting tray (2) consists of a support plate (7) and a positioning column (8). There are four positioning columns (8) that are symmetrically fixed on the upper end of the support plate (7). A driving component (3) is fixedly installed on the lower inner wall of the high-temperature detection box (1), and the driving component (3) consists of a driving device (10) and a connecting pin (11). The connecting pin (11) is fixedly installed on the upper end of the output shaft of the driving device (10). A sample holding tray (4) is installed on the limiting tray (2), and the sample holding tray (4) consists of a base plate (12), an annular net (15) and a sleeve (16). The sleeve (16) is located on the inner side of the base plate (12), and the annular net (15) connects the sleeve (16) to the base plate. The high temperature detection box (1) is connected with a plate (12), and a retractable pushing assembly (5) is fixedly installed on the upper inner wall of the high temperature detection box (1), and the retractable pushing assembly (5) is composed of a fixed rod (17), a telescopic rod (18), a fixed ring (19), a connecting head (20), a rotating arm (21) and a pushing rod (22). The telescopic rod (18) is movably installed in the fixed rod (17), the fixed ring (19) is fixedly sleeved on the upper part of the fixed rod (17), the connecting head (20) is fixedly installed on the lower end of the telescopic rod (18), the rotating arms (21) are in three numbers and are distributed in an annular shape on the outer wall of the connecting head (20), the fixed rod (17) is in several numbers and is fixedly installed on the lower ends of the three rotating arms (21), and the connecting head (20) can be sleeved on the connecting pin (11).

2. The heat resistance testing device for PVC rubber according to claim 1, characterized in that: A protective door (6) is installed on the high-temperature detection box (1).

3. The heat resistance testing device for PVC rubber according to claim 2, characterized in that: The support plate (7) on the limiting tray (2) is fixedly mounted on the inner wall of the high-temperature detection box (1), and a through hole (9) is provided on the support plate (7).

4. The heat resistance testing device for PVC rubber according to claim 3, characterized in that: The driving device (10) on the driving assembly (3) is fixedly mounted on the lower inner wall of the high-temperature detection box (1), and the connecting pin (11) passes upward through a through hole (9) provided on the support plate (7).

5. The heat resistance testing device for PVC rubber according to claim 4, characterized in that: The base plate (12) on the sample holding tray (4) is placed on the upper end of the support plate (7), and four positioning holes (13) are symmetrically opened on the base plate (12). The base plate (12) is sleeved on the four positioning columns (8) through the positioning holes (13). A mounting groove (14) is opened on the base plate (12) and between the four positioning holes (13). The sleeve (16) and the annular net (15) are both located in the mounting groove (14). The annular net (15) is fixedly installed on the inner wall of the mounting groove (14) and the outer wall of the sleeve (16). The sleeve (16) is sleeved on the output shaft of the driving device (10) and the outer side of the connecting pin (11).

6. The heat resistance testing device for PVC rubber according to claim 5, characterized in that: The fixing ring (19) on the telescopic pushing assembly (5) is fixedly mounted on the upper inner wall of the high-temperature detection box (1), and the connecting head (20) is located below the fixing rod (17). A connecting groove (23) is provided at the lower end of the connecting head (20), and the connecting head (20) is sleeved on the connecting pin (11) through the connecting groove (23).

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