CN217586586U - Sample preparation device for testing bonding strength of PVC-U adhesive - Google Patents
Sample preparation device for testing bonding strength of PVC-U adhesive Download PDFInfo
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- CN217586586U CN217586586U CN202220968500.4U CN202220968500U CN217586586U CN 217586586 U CN217586586 U CN 217586586U CN 202220968500 U CN202220968500 U CN 202220968500U CN 217586586 U CN217586586 U CN 217586586U
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Abstract
The application discloses a sample preparation device for testing the bonding strength of a PVC-U adhesive, which comprises a base, a lower heating plate, a sample preparation mold, an upper heating plate and a plurality of cylindrical guide rails fixedly arranged between the base and the upper heating plate, wherein the lower heating plate is arranged on the cylindrical guide rails in a sliding manner; still fixedly on the base be provided with the cylinder, the push rod of cylinder and the lower fixed surface of hot plate are connected down, and the system appearance mould is placed on the upper surface of hot plate down. The device can press the sample into the required size according to the QB/T2568-2002 size requirement, and has the advantages of simple operation, low labor intensity and high sample preparation efficiency. The device of this application sample one shot forming when making the appearance, the surface smoothness is even, and the size is unified, can effectively improve the accuracy of test bonding strength.
Description
Technical Field
The utility model relates to a sample preparation facilities field, concretely relates to sample preparation facilities for PVC-U adhesive bonding strength test.
Background
The bonding strength is one of the important indexes of the PVC-U adhesive, and the accuracy of the index directly influences the quality of a judged product. The size of the sample and the flatness of the sample surface are the main factors affecting the accuracy of the bonding strength. Samples of the corresponding dimensions were cut from PVC sheets approximately 6mm thick, according to QB/T2568-2002 solvent-based adhesives for rigid polyvinyl chloride (PVC-U) plastic piping systems. The production enterprises generally adopt a cutting method to prepare samples, cut apart, heat and flatten the PVC-U pipes, measure by using a ruler, mark by marking, and cut by using an abrasive wheel saw. The method has the disadvantages of complex steps, low cutting efficiency, uneven flatness of the surface of the sample, poor cutting precision, difficulty in accurate measurement of the size, influence on the accuracy of test data, and result in large discreteness and poor accuracy of the detected bonding strength data.
In view of this, the present invention provides a sample preparation device for testing the bonding strength of a PVC-U adhesive. The device is customized and researched according to products of enterprises and QB/T2568-2002 standard requirements, aims at improving sample preparation efficiency and detecting data accuracy, and assists companies in production and operation.
Disclosure of Invention
To the above-mentioned technical problem that prior art exists, the utility model aims to provide a sample preparation facilities for PVC-U adhesive bonding strength test to solve prior art system appearance inefficiency and the low problem of detection data accuracy.
The sample preparation device for testing the bonding strength of the PVC-U adhesive is characterized by comprising a base, a lower heating plate, a sample preparation mold, an upper heating plate and a plurality of cylindrical guide rails fixedly arranged between the base and the upper heating plate, wherein the lower heating plate is arranged on the cylindrical guide rails in a sliding manner; still fixedly on the base be provided with the cylinder, the push rod of cylinder and the lower fixed surface of hot plate are connected down, and the system appearance mould is placed on the upper surface of hot plate down.
The sample preparation device for testing the bonding strength of the PVC-U adhesive is characterized in that the sample preparation mold comprises a lower mold and an upper mold covered on the lower mold, and a plurality of sample notches for placing sample particles are formed in the lower mold; when the preparation of the prefabricated test piece is carried out, the sample particles are placed in the sample notch of the lower die, and the sample preparation upper die is matched with the lower die to form a sample preparation die.
The sample preparation device for testing the bonding strength of the PVC-U adhesive is characterized in that the number of the cylindrical guide rails is 4, and the 4 cylindrical guide rails are symmetrically arranged at four corners of the lower heating plate.
The sample preparation device for testing the bonding strength of the PVC-U adhesive is characterized in that a temperature controller is arranged on the base, heating resistance wires are uniformly distributed in the lower heating plate and the upper heating plate, temperature sensors are arranged in the lower heating plate and the upper heating plate, and the temperature controller is connected with the temperature sensors and the heating resistance wires; the base is further provided with a temperature control display, the temperature control display is connected with a temperature controller through a circuit, and the temperature controller is connected with a power supply.
The sample preparation device for testing the bonding strength of the PVC-U adhesive is characterized in that a temperature control starting switch is arranged on the base and connected with a temperature controller through a circuit, and the temperature control starting switch is used for driving the temperature controller to be turned on or turned off.
The sample preparation device for testing the bonding strength of the PVC-U adhesive is characterized in that a cylinder starting switch is arranged on the base and connected with a cylinder through a circuit to drive the cylinder to be opened or closed.
The beneficial effect that this application was got is: the utility model is used for sample preparation facilities of PVC-U adhesive bond strength test, according to QB/T2568-2002 size requirement, suppress the sample with the device and become the size that meets the requirements, easy operation, low in labor strength, system appearance is efficient. The sample one shot forming, surface smoothness is even, and the size is unified, can effectively improve the accuracy of test bond strength.
Drawings
FIG. 1 is a schematic structural diagram of a sample preparation device for testing the bonding strength of a PVC-U adhesive according to the present application;
FIG. 2 is a front view of the sample preparation device for testing the bonding strength of PVC-U adhesives of the present application;
FIG. 3 is a schematic structural view of a lower mold of the present application;
in the figure: 1-base, 2-cylindrical guide rail, 3-upper heating plate, 4-lower heating plate, 5-cylinder, 6-lower mould, 6-1 sample notch A, 6-2 sample notch B, 7-upper mould, 8-temperature control display, 9-cylinder starting switch and 10-temperature control starting switch.
Detailed Description
The invention is further illustrated with reference to the following specific examples, without limiting the scope of the invention thereto.
Example (b): compare FIGS. 1-3
A sample preparation device for testing the bonding strength of a PVC-U adhesive comprises a base 1, a lower heating plate 4, a sample preparation mold, an upper heating plate 3 and a plurality of cylindrical guide rails 2 fixedly arranged between the base 1 and the upper heating plate 3, wherein the lower heating plate 4 is arranged on the cylindrical guide rails 2 in a sliding manner; still fixedly on the base 1 be provided with cylinder 5, the push rod of cylinder 5 is connected with the lower fixed surface of lower hot plate 4, and the system appearance mould is placed on the upper surface of lower hot plate 4. When the prefabricated test piece is prepared, the sample particles are placed in a sample preparation mold, the cylinder 5 pushes the lower heating plate 4 to move upwards along the cylindrical guide rail 2 until the upper heating plate 3 is tightly pushed, and hot pressing is carried out.
In the application, the sample preparation mold comprises a lower mold 6 and an upper mold 7 for covering the lower mold 6, wherein a plurality of sample notches for placing sample particles are formed in the lower mold 6; when the preparation of the prefabricated test piece is carried out, the sample particles are placed in the sample notch of the lower die 6, and the sample preparation upper die 7 is matched with the cover and arranged on the lower die 6 to form a sample preparation die.
Referring to fig. 3, the lower mold 6 is provided with 5 sample notches A6-1 and 5 sample notches B6-2.
In the comparison figure 1, the number of the cylindrical guide rails 2 is 4, and the 4 cylindrical guide rails 2 are symmetrically arranged at four corners of the lower heating plate 4.
A temperature controller is arranged on the base 1, heating resistance wires and temperature sensors are uniformly distributed in the lower heating plate 4 and the upper heating plate 3, and the temperature controller is connected with the temperature sensors and the heating resistance wires; wherein, still be equipped with temperature control display 8 on the base 1, temperature control display 8 passes through the circuit and is connected with temperature controller, and temperature controller reconnection power.
The base 1 is provided with a temperature control starting switch 10, the temperature control starting switch 10 is connected with the temperature controller through a circuit, and the temperature control starting switch 10 is used for driving the temperature controller to be turned on or turned off.
The base 1 is provided with a cylinder starting switch 9, and the cylinder starting switch 9 is connected with the cylinder 5 through a circuit and used for driving the cylinder to be opened or closed.
The lower end of the cylindrical guide rail is fixed on the base and can not move freely; the upper heating plate is fixed on the cylindrical guide rail and can not move freely; the lower heating pressing plate can move up and down along the cylindrical guide rail, the lower heating plate moves up to act on the sample preparation mold, and the sample softened by high temperature is pressed into a size meeting the requirement.
The device of this application during operation: weigh granular sample and place in the sample notch of bed die 6, will go up mould 7 and cover, then put the system appearance mould that forms on sample preparation facilities's lower hot plate 4, start temperature detect switch 10 and make hot plate intensification from top to bottom, start cylinder switch 9, cylinder 5 promotes down hot plate 4 and upwards moves along cylindrical guide rail 2 and act on the system appearance mould, will make the appearance mould compress tightly, pressurize 5min takes out the cooling and can obtain the sample that accords with the experimental requirement.
The description is given for the sole purpose of illustrating the invention concept in its implementation form and the scope of the invention should not be considered as being limited to the particular form set forth in the examples.
Claims (5)
1. A sample preparation device for testing the bonding strength of a PVC-U adhesive is characterized by comprising a base (1), a lower heating plate (4), a sample preparation mold, an upper heating plate (3) and a plurality of cylindrical guide rails (2) fixedly arranged between the base (1) and the upper heating plate (3), wherein the lower heating plate (4) is arranged on the cylindrical guide rails (2) in a sliding manner; the base (1) is also fixedly provided with an air cylinder (5), a push rod of the air cylinder (5) is fixedly connected with the lower surface of the lower heating plate (4), and the sample preparation mold is placed on the upper surface of the lower heating plate (4); the sample preparation mould comprises a lower mould (6) and an upper mould (7) used for covering the lower mould (6), and a plurality of sample notches used for placing sample particles are formed in the lower mould (6); when the preparation of the prefabricated test piece is carried out, the sample particles are placed in the sample notch of the lower die (6), and the sample preparation upper die (7) is matched with the cover and arranged on the lower die (6) to form a sample preparation die.
2. The sample preparation device for testing the bonding strength of the PVC-U adhesive according to claim 1, wherein the number of the cylindrical guide rails (2) is 4, and the 4 cylindrical guide rails (2) are symmetrically arranged at four corners of the lower heating plate (4).
3. The sample preparation device for testing the bonding strength of the PVC-U adhesive according to claim 1, wherein a temperature controller is arranged on the base (1), heating resistance wires and temperature sensors are uniformly distributed in the lower heating plate (4) and the upper heating plate (3), and the temperature controller is connected with the temperature sensors and the heating resistance wires; the base (1) is further provided with a temperature control display (8), the temperature control display (8) is connected with a temperature controller through a circuit, and the temperature controller is connected with a power supply.
4. The sample preparation device for testing the bonding strength of the PVC-U adhesive according to claim 3, wherein the base (1) is provided with a temperature-controlled start switch (10), the temperature-controlled start switch (10) is connected with a temperature controller through a circuit, and the temperature-controlled start switch (10) is used for driving the temperature controller to be turned on or off.
5. The sample preparation device for testing the bonding strength of the PVC-U adhesive according to claim 1, wherein the base (1) is provided with a cylinder starting switch (9), and the cylinder starting switch (9) is connected with the cylinder (5) through a circuit to drive the cylinder to be opened or closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220968500.4U CN217586586U (en) | 2022-04-25 | 2022-04-25 | Sample preparation device for testing bonding strength of PVC-U adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220968500.4U CN217586586U (en) | 2022-04-25 | 2022-04-25 | Sample preparation device for testing bonding strength of PVC-U adhesive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217586586U true CN217586586U (en) | 2022-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220968500.4U Active CN217586586U (en) | 2022-04-25 | 2022-04-25 | Sample preparation device for testing bonding strength of PVC-U adhesive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217586586U (en) |
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2022
- 2022-04-25 CN CN202220968500.4U patent/CN217586586U/en active Active
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