CN213689282U - Redispersible latex powder cohesiveness testing device - Google Patents
Redispersible latex powder cohesiveness testing device Download PDFInfo
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- CN213689282U CN213689282U CN202022439364.3U CN202022439364U CN213689282U CN 213689282 U CN213689282 U CN 213689282U CN 202022439364 U CN202022439364 U CN 202022439364U CN 213689282 U CN213689282 U CN 213689282U
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Abstract
The application provides a device for testing the cohesiveness of redispersible latex powder, which comprises a test board, a pressing plate, a lifting driving mechanism, a control unit, a pressure sensor and a guide rail, wherein the lifting driving mechanism is arranged on the test board; the pressure plate is arranged above the test plate, the output end of the lifting driving mechanism is connected to the pressure plate, and the lifting driving mechanism drives the pressure plate to move up and down; the pressure sensor is arranged on the surface, close to the test board, of the pressure plate; the control unit is in signal connection with the lifting driving mechanism and the pressure sensor; the two sides of the test board corresponding to the press plate are vertically provided with a pair of guide rails, the two sides of the press plate are sleeved on the pair of guide rails, and the press plate slides up and down along the guide rails. The beneficial effect of this application is: the mortar is placed on the surface of the test board, the press plate applies a certain pressure to the test board, the cohesiveness of the mortar is visually displayed through the spread area of the mortar, the abstract concept is realized, experimenters can conveniently compare the influence of the redispersible latex powder on the cohesiveness of the mortar, and visual data are provided for guiding the application of the redispersible latex powder.
Description
Technical Field
The disclosure relates to the technical field of redispersible latex powder cohesiveness test, in particular to a redispersible latex powder cohesiveness test device.
Background
The redispersible emulsion powder is water soluble redispersible powder, which is divided into ethylene/vinyl acetate copolymer, vinyl acetate/versatic acid ethylene copolymer, acrylic acid copolymer, etc. polymer emulsion is sprayed and dried to prepare powder adhesive, and polyvinyl alcohol is used as protective colloid. The powder can be quickly redispersed into emulsion after being dissolved in water, and the redispersible emulsion powder has high bonding capability and unique performance, so that the redispersible emulsion powder can be widely applied to products such as putty powder, mortar and the like.
The redispersible latex powder is used as one of main adhesives of products such as mortar and the like, and can directly influence the cohesiveness of the mortar, wherein the cohesiveness refers to that the phenomena such as layering, segregation and the like do not occur in the construction process of the mortar and the like, and the polymerization performance is kept among the components of the mortar and the like. The good cohesiveness can ensure that the problems of layering, segregation and the like can not occur in the processes of smearing, forming and the like of mortar products, and the internal structure is uniform after the mortar products are hardened. Therefore, the influence of the addition amount of the redispersible latex powder in the mortar on the cohesiveness is tested, and the influence of different redispersible latex powders on the cohesiveness of the mortar is necessary to test.
Disclosure of Invention
The purpose of this application is to provide a can redispersible emulsion powder cohesiveness testing arrangement to above problem.
In a first aspect, the application provides a device for testing the cohesiveness of redispersible latex powder, which comprises a test board, a pressing plate, a lifting driving mechanism, a control unit, a pressure sensor and a guide rail, wherein the pressing plate is arranged on the test board; the lifting driving mechanisms are arranged in pairs and respectively correspond to two sides of the pressing plate, the pair of lifting driving mechanisms work synchronously, the output ends of the lifting driving mechanisms are connected to the pressing plate, and the lifting driving mechanisms are used for driving the pressing plate to move up and down; the pressure sensor is arranged on the surface, close to the test board, of the pressing plate; the control unit is in signal connection with the lifting driving mechanism and the pressure sensor; the two sides of the test board corresponding to the pressing plates are vertically provided with a pair of guide rails, the two sides of the pressing plates are sleeved on the pair of guide rails, and the pressing plates slide along the guide rails in a lifting manner.
According to the technical scheme provided by the embodiment of the application, the pressing plate is a plastic flat plate or a stainless steel flat plate.
According to the technical scheme provided by the embodiment of the application, the test plate is a plastic flat plate or a stainless steel flat plate.
According to the technical scheme provided by the embodiment of the application, the two sides of the pressing plate correspond to a pair of the guide rails which are respectively provided with the openings, a circle of rolling balls are embedded in the surfaces of the openings, and each ball is in rolling contact with the guide rail.
According to the technical scheme provided by the embodiment of the application, a central driving mechanism is arranged above the pressing plate corresponding to the center of the pressing plate, and the output end of the central driving mechanism is connected to the center of the pressing plate.
According to the technical scheme provided by the embodiment of the application, the central driving mechanism is set to be a hydraulic cylinder, and the piston end of the hydraulic cylinder is fixedly connected to the center of the pressing plate.
The invention has the beneficial effects that: the application provides a redispersible latex powder cohesiveness testing arrangement places the mortar sample on the test board surface, applys certain pressure to the sample through the clamp plate for the sample is spread out on the test board surface, and the area is spread out through the mortar and is shown mortar cohesiveness directly perceivedly, with abstract concept materialization, makes things convenient for the experimenter to compare out the influence of redispersible latex powder to mortar cohesiveness, provides visual data for guiding the application of redispersible latex powder.
Drawings
FIG. 1 is a schematic front view of a first embodiment of the present application;
FIG. 2 is a schematic top view of a first embodiment of the present application;
FIG. 3 is a schematic top view of a preferred embodiment of the first embodiment of the present application;
the text labels in the figures are represented as: 1. a test board; 2. a guide rail; 3. pressing a plate; 4. a lifting drive mechanism; 5. a control unit; 6. a pressure sensor; 7. a ball bearing; 8. a central drive mechanism.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings, and the description of the present section is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention in any way.
Fig. 1 and 2 are schematic diagrams illustrating a first embodiment of the present application, including a testing board 1, a pressing board 3, a lifting driving mechanism 4, a control unit 5, a pressure sensor 6 and a guide rail 2; the pressing plate 3 is arranged above the test plate 1, the lifting driving mechanisms 4 are arranged in a pair and respectively correspond to two sides of the pressing plate 3, the pair of lifting driving mechanisms 4 work synchronously, the output end of the lifting driving mechanism 4 is connected to the pressing plate 3, and the lifting driving mechanism 4 is used for driving the pressing plate 3 to move up and down; the pressure sensor 6 is arranged on the surface, close to the test board 1, of the pressure plate 3; the control unit 5 is in signal connection with the lifting driving mechanism 4 and the pressure sensor 6; the two sides of the test board 1 corresponding to the press plate 3 are vertically provided with a pair of guide rails 2, the two sides of the press plate 3 are sleeved on the pair of guide rails 2, and the press plate 3 moves up and down and slides along the guide rails 2.
In the embodiment, the mortar sample to be tested is stacked on the test board 1, the lifting driving mechanism 4 drives the press board 3 to move downwards, so that the press board 3 is pressed on the surface of the test board 1 at a set pressure, the press board 3 is moved away from the surface of the test board 1 after the set time, the cohesiveness of the samples such as the mortar is tested through the spread area of the pressed samples, the abstract concept is realized, experimenters can conveniently compare the influence of redispersible latex powder with different quality or different types on the cohesiveness of the samples such as the mortar, and visual data are provided for guiding the application of the redispersible latex powder.
In this embodiment, the control unit 5 is configured to control the lifting driving mechanism 4 to move up and down, and receive data from the pressure sensor 6, and when the pressure value of the pressure sensor 6 reaches the set pressure requirement, the control unit 5 controls the lifting driving mechanism 4 to stop pressing down. After the pressure plate 3 is pressed on the surface of the test plate 1 for a set time under the set pressure, the lifting driving mechanism 4 is controlled by the control unit 5 to move upwards, and the pressure plate 3 is separated from the surface of the test plate 1. The lifting driving mechanism 4 in this embodiment may be configured as a hydraulic cylinder or an electric telescopic rod. In this embodiment, in order to make the lift process of clamp plate 3 go on steadily, set up guide rail 2 in the both sides of clamp plate 3, along the lift removal of both sides guide rail 2 in the in-process of the lift removal of clamp plate 3, also the guide rail 2 plays good guide effect to the lift removal of clamp plate 3.
In a preferred embodiment, the pressure plate 3 is provided as a flat plastic plate or a flat stainless steel plate. The preferred embodiment facilitates cleaning of the platen 3 and ensures that the sample is evenly stressed.
In a preferred embodiment, the test plate 1 is provided as a plastic or stainless steel plate. This preferred embodiment facilitates cleaning of the test plate 1 plate and ensures that the sample is evenly stressed.
In a preferred embodiment, as shown in fig. 3, a pair of the guide rails 2 corresponding to both sides of the pressure plate 3 are respectively opened, a circle of rolling balls 7 are embedded in the surface of the opening, and each ball 7 is in rolling contact with the guide rail 2. In the preferred embodiment, the contact form of the pressing plate 3 and the guide rail 2 is set to be rolling contact, so that the friction force generated when the pressing plate 3 slides along the guide rail 2 can be reduced, the pressing plate 3 can move up and down more smoothly, and the working stability of the system is ensured.
In a preferred embodiment, as shown in fig. 3, a central driving mechanism 8 is arranged above the pressure plate 3 corresponding to the center of the pressure plate 3, and the output end of the central driving mechanism 8 is connected to the center of the pressure plate 3. In the preferred embodiment, the output end of the central driving mechanism 8 is connected to the center of the pressing plate 3, the central driving mechanism 8 and the lifting driving mechanism 4 work synchronously in the process that the pair of lifting driving mechanisms 4 drive the pressing plate 3 to move up and down, and in the process that the pressing plate 3 is in contact with the test plate 1, downward pressure with the same size as that applied by the lifting driving mechanisms 4 on the two sides of the pressing plate 3 is applied to the center of the pressing plate 3, so that the stress uniformity of the pressing plate 3 is ensured, and the accuracy of test data is improved.
Preferably, the central driving mechanism 8 is configured as a hydraulic cylinder, and a piston end of the hydraulic cylinder is fixedly connected to the center of the pressure plate 3.
The principles and embodiments of the present application are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present application, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments, or may be learned by practice of the invention.
Claims (6)
1. The device for testing the cohesiveness of the redispersible latex powder is characterized by comprising a test board, a pressing plate, a lifting driving mechanism, a control unit, a pressure sensor and a guide rail;
the lifting driving mechanisms are arranged in pairs and respectively correspond to two sides of the pressing plate, the pair of lifting driving mechanisms work synchronously, the output ends of the lifting driving mechanisms are connected to the pressing plate, and the lifting driving mechanisms are used for driving the pressing plate to move up and down;
the pressure sensor is arranged on the surface, close to the test board, of the pressing plate; the control unit is in signal connection with the lifting driving mechanism and the pressure sensor;
the two sides of the test board corresponding to the pressing plates are vertically provided with a pair of guide rails, the two sides of the pressing plates are sleeved on the pair of guide rails, and the pressing plates slide along the guide rails in a lifting manner.
2. The apparatus of claim 1, wherein the pressing plate is a plastic plate or a stainless steel plate.
3. The apparatus for testing the cohesiveness of the redispersible latex powder of claim 1, wherein the testing plate is a plastic plate or a stainless steel plate.
4. The apparatus of claim 1, wherein the pressing plate has openings corresponding to a pair of the guide rails on both sides, a ring of rolling balls is embedded in the surface of the openings, and each ball is in rolling contact with the guide rail.
5. The apparatus of claim 1, wherein a central driving mechanism is disposed above the pressing plate corresponding to the center of the pressing plate, and the output end of the central driving mechanism is connected to the center of the pressing plate.
6. The apparatus of claim 5, wherein the central driving mechanism is a hydraulic cylinder, and the piston end of the hydraulic cylinder is fixedly connected to the center of the pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022439364.3U CN213689282U (en) | 2020-10-28 | 2020-10-28 | Redispersible latex powder cohesiveness testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022439364.3U CN213689282U (en) | 2020-10-28 | 2020-10-28 | Redispersible latex powder cohesiveness testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213689282U true CN213689282U (en) | 2021-07-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022439364.3U Active CN213689282U (en) | 2020-10-28 | 2020-10-28 | Redispersible latex powder cohesiveness testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213689282U (en) |
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2020
- 2020-10-28 CN CN202022439364.3U patent/CN213689282U/en active Active
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