CN203124186U - Quantitative coating device for laboratory - Google Patents

Abstract

The utility model provides a quantitative coating device for a laboratory. The quantitative coating device comprises a bracket, a handle, a feeding roller, a coating roller, a gap adjusting bolt, a fixed bolt, a spring compression dynamometer, a liftable worktable and a worktable adjusting bolt, wherein the bracket is arranged at the center position of the worktable in parallel; the worktable adjusting bolt penetrates through the worktable from bottom to top and is connected with the bracket; the axis of the feeding roller is parallel to the axis of the coating roller; the spring compression dynamometer is mounted on a shaft of the coating roller; the feeding roller and the coating roller are connected through the gap adjusting bolt; and a main shaft of the feeding roller is matched with a guide rail on the bracket and can move along the guide rail. According to the quantitative coating device disclosed by the utility model, the problem that a coating amount cannot be accurately controlled when less coating is carried out in the laboratory is solved; and the device is compact in structure, simple to operate and convenient to maintain.

Description

A laboratory quantitative coating device

technical field

The utility model relates to a quantitative coating device used in a laboratory, which is a device that satisfies the uniform coating of a small amount of paint on the surface of a base material during an experiment.

Background technique

At present, many advanced large-scale coating devices have been successfully applied in enterprise production, such as spray coating, roll coating and so on. In order to meet the needs of product upgrades, researchers need to simulate production conditions in the laboratory to optimize various parameters of the coating process. Existing laboratory coating devices such as coating brushes can evenly coat paper, etc. The substrate is coated, but the coating amount cannot be accurately controlled, so that the experiment needs to rely on the operator's coating experience to control the gradient of the coating amount, which cannot eliminate the system error and affect the accuracy of the experimental data, which is the reason for the smooth progress of the experiment A major hurdle to overcome.

Utility model content

The purpose of the utility model is to provide a quantitative coating device for accurate control of the coating amount in the laboratory. The coating device enables a small amount of coating experiments to be carried out simply and accurately.

In order to achieve the above object, the utility model adopts the following technical solutions:

The coating device comprises opposite brackets and a feeding roller and a coating roller arranged between the brackets, the axis of the feeding roller is parallel to the axis of the coating roller, the feeding roller is an empty stomach type, and the surface of the roller body of the feeding roller is uniform Fine holes are distributed, and the fine holes communicate with the inside of the roller body of the feeding roller. The shaft of the feeding roller matches the guide rail set on the bracket. The shaft of the feeding roller is provided with gap adjustment bolts, and the shaft of the coating roller is provided with The gap adjustment bolt is attached to the spring compression dynamometer.

The coating device also includes a liftable workbench, the support is arranged in parallel on the liftable workbench, and one end of the support is connected with the workbench adjustment bolt arranged on the liftable workbench.

The coating device also includes a handle connected to the shaft of the feed roller.

The shape of the pores is a cone with a small inside and a big outside.

A spring compression dynamometer fixing device is welded on the shaft of the coating roller.

The surface material of the feeding roller and the coating roller is the same, and the surface material is rubber or soft plastic.

The diameter of the feed roller is smaller than the diameter of the coating roller.

The applicator roll is an empty stomach type.

A feeding port is opened on the end surface of the feeding roller.

The beneficial effects of the utility model are: the coating device of the utility model adopts the feeding roller with holes to make the coating evenly distributed on the coating roller, and controls the coating by adjusting the gap adjustment bolt connecting the feeding roller and the coating roller. The gap between the two rollers, and the size of the gap between the two rollers can be accurately calculated through the readings on the spring compression dynamometer, so as to accurately control the coating amount, which solves the problem that the coating amount cannot be accurately controlled when a small amount of coating is applied in the laboratory The problem. The coating device has the advantages of compact structure, simple operation, and convenient maintenance. While controlling the amount of coating, the coating is evenly distributed on the substrate, which meets the requirements of experimental precision.

Description of drawings

Fig. 1 is one of structural representations of coating device described in the utility model;

Fig. 2 is the second structural representation of the coating device described in the utility model;

Fig. 3 is a sectional view of the feed roller described in the utility model;

In the figure: bracket 1, handle 2, feeding roller 3, coating roller 4, gap adjustment bolt 5, fixing bolt 6, spring compression dynamometer 7, liftable workbench 8, workbench adjustment bolt 9, guide rail 10, fine Hole 11, spring compression dynamometer fixing device 12, feeding port 13.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Referring to Fig. 1-Fig. 3, the coating device described in the utility model comprises the support 1 that is arranged oppositely and the feeding roller 3 and the coating roller 4 that are arranged between the brackets 1, the axis of the feeding roller 3 and the coating roller 4 The axes are parallel to each other, the feeding roller 3 is an empty stomach type, and the surface of the roller body of the feeding roller 3 is evenly distributed with fine holes 11. The shape of the fine holes 11 is a cone with a small inside and a large outside. The inside of the body is connected, the shaft of the feed roller 3 is matched with the guide rail 10 set on the bracket 1, the shaft of the feed roller 3 is provided with a gap adjustment bolt 5, and the shaft of the coating roller 4 is provided with a gap adjustment bolt 5. A spring compression dynamometer 7, a spring compression dynamometer fixing device 12 is welded on the shaft of the coating roller 4, the coating device also includes a liftable workbench 8, and the support 1 is arranged in parallel on the liftable workbench 8 In the central position on the top, one end of the support 1 is connected with the worktable adjustment bolt 9 arranged on the liftable workbench 8, and the coating device also includes a handle 2 connected with the shaft of the feed roller 3, and the feed roller 3 and The surface material of coating roller 4 is identical, and surface material is rubber or soft plastics, and the diameter of described feeding roller 3 is less than the diameter of coating roller 4, and described coating roller 4 is empty stomach type, and the end face of described feeding roller 3 There is a feeding port 13 on the top.

working principle:

During the coating operation, the base material is placed on the liftable workbench 8, and the liftable workbench 8 is connected with the support 1 through the workbench adjustment bolt 9 at the bottom. The spring compression dynamometer 7 is installed on the spring compression dynamometer fixing device 12 on the coating roller 4 through the fixing bolt 6, and the spring compression dynamometer 7 on the coating roller 4 and the feeding roller 3 are adjusted through the gap Bolt 5 connection. Adjust the gap adjustment bolt 5 according to the amount of coating on the unit substrate area, and obtain the size of the gap through the reading of the spring compression dynamometer 7 and the stiffness coefficient of the selected spring. Put the shaft of the feeding roller 3 into the guide rail 10 of the support 1, and adjust the distance between the coating roller 4 and the liftable worktable 8 through the worktable adjustment bolt 9 according to the thickness of the base material (such as paper). The prepared coating is sent into the feeding roller from the feeding port 13. Pull the handle 2 horizontally at a constant speed, and the paint flows out from the fine hole 11 under the action of centrifugal force, transfers to the coating roller 4, and finally evenly coats the surface of the base material.

Example

A quantitative coating device for a laboratory comprises a support, a handle, a feed roller, a coating roller, a gap adjustment bolt, a fixing bolt, a spring compression dynamometer, a liftable workbench and a workbench adjustment bolt. The support is arranged in parallel at the central position of the workbench, and the width of the workbench exceeds the length of the support. The workbench adjusting bolt passes through the workbench from bottom to top and is connected with the support. The feeding roller is hollow type, and the surface of the roller body is evenly distributed with fine holes, and the fine holes communicate with the roller body. The shape of the pores is a cone with a small inside and a large outside (that is, a tapered hole). By using a feeding roller with a tapered hole, the paint is evenly distributed on the coating roller. The axis of the feeding roller is parallel to the axis of the coating roller, the spring compression dynamometer is installed on the fixing device of the coating roller through fixing bolts, and the feeding roller and the coating roller are connected through gap adjustment bolts. The distance between the two rollers is controlled by adjusting the gap adjustment bolt connecting the feed roller and the coating roller, and the gap between the two rollers is accurately calculated through the readings on the spring compression dynamometer. The shaft of the feeding roller cooperates with the guide rail on the support and can move along the guide rail.

The applicator roll is equipped with a spring compression load cell. The spring compression dynamometer consists of a dial, a case, and a compression spring. Since the spring compression dynamometer is to be connected to the gap adjustment bolt, one end of the housing must have an internal thread. According to Hooke's law F=kx (F—elastic force, k—the stiffness coefficient of the spring, x—the length of the spring being compressed or stretched), a small deformation of the spring can cause a change in the force value. The change of the elastic force reflects the size of the gap between the two rollers, which greatly improves the measurement accuracy of the gap between the two rollers. Springs with different stiffness coefficients can be selected according to the requirements of experimental accuracy.

The surface material of the feeding roller and the coating roller is made of the same elastic material such as rubber or soft plastic, and the surface of the two rollers has a suitable friction coefficient and elasticity, which facilitates the rapid transfer of paint from the feeding roller to the coating roller. The diameter of the feed roller is smaller than that of the applicator roller. The optimal ratio is 1:2, so that when the paint is transferred from the feed roller to the applicator roller, the paint layer is thinner, the distribution is more uniform, and the coating amount is easier to control. The diameter of the feeding roller is 5cm~10cm. The effective axial length of the feeding roller matches the coating roller, the end face of the feeding roller is provided with a feeding port, and the coating roller is an empty stomach type.

Fine holes are evenly distributed on the surface of the roller body of the feed roller, and the shape of the fine holes is a cone with a small inside and a big outside, with a maximum diameter of 3 mm. The small-diameter pores are conducive to the uniform dispersion of paint in the feed roller, and the cone structure with a small inside and a large outside provides a certain pressure difference for the paint to flow out, which is conducive to the smooth flow of paint from the feed roller, and the roller surface is not easy to block. It is beneficial to clean the roller surface.

The above is only one embodiment of the utility model, not all or the only implementation. Any equivalent transformation adopted by those of ordinary skill in the art to the technical solution of the utility model by reading the specification of the utility model shall be considered as the present invention. covered by the claims of the utility model.

Claims (9)

1. A quantitative coating device for laboratory use, characterized in that: the coating device includes opposite brackets (1) and feed rollers (3) and coating rollers (4) arranged between the brackets (1) , the axis of the feed roller (3) is parallel to the axis of the coating roller (4), the feed roller (3) is an empty stomach type, and the surface of the feed roller (3) is evenly distributed with pores (11), the pores (11) communicates with the inside of the roller body of the feeding roller (3), the shaft of the feeding roller (3) matches the guide rail (10) set on the bracket (1), and the shaft of the feeding roller (3) is provided with a gap adjustment The bolt (5), the shaft of the coating roller (4) is provided with a spring compression dynamometer (7) connected with the gap adjustment bolt (5). 2. A quantitative coating device for laboratory use according to claim 1, characterized in that: the coating device also includes a liftable workbench (8), and the support (1) is arranged in parallel on the liftable workbench (8) ), one end of the bracket (1) is connected with the workbench adjusting bolt (9) arranged on the liftable workbench (8). 3. The quantitative coating device for laboratory use according to claim 1, characterized in that: the coating device further comprises a handle (2) connected to the shaft of the feeding roller (3). 4. A quantitative coating device for laboratory use according to claim 1, characterized in that: the shape of the pores (11) is a cone with a small inside and a big outside. 5 . A laboratory quantitative coating device according to claim 1 , characterized in that: a spring compression dynamometer fixing device ( 12 ) is welded on the shaft of the coating roller ( 4 ). 6. A laboratory quantitative coating device according to claim 1, characterized in that: the feeding roller (3) and the coating roller (4) have the same surface material, and the surface material is rubber or soft plastic. 7. A quantitative coating device for laboratory use according to claim 1, characterized in that: the diameter of the feeding roller (3) is smaller than the diameter of the coating roller (4). 8. A laboratory quantitative coating device according to claim 1, characterized in that: the coating roller (4) is an empty stomach type. 9 . The laboratory quantitative coating device according to claim 1 , characterized in that: a feeding port ( 13 ) is opened on the end surface of the feeding roller ( 3 ).

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