阅读说明：本技术 一种提高植砂均匀性的静电植砂方法 (Electrostatic sand planting method for improving sand planting uniformity ) 是由 雷龙长 于 2019-10-14 设计创作，主要内容包括：本发明公开了一种提高植砂均匀性的静电植砂方法,属于静电植砂的方法技术领域。本发明的一种提高植砂均匀性的静电植砂方法,使附着有粘接剂的基材行走经过电力场,将砂粒传输至电力场内,在电力场的作用下,砂粒上升附着于基材上,在电力场内,使砂粒先上升穿过筛网被均匀化后、再附着于基材上。采用本发明进行基材的植砂作业时,能够提高植砂的均匀性,使得砂粒能够更加均匀的分布于基材上,生产的产品质量更佳。(The invention discloses an electrostatic sand planting method for improving sand planting uniformity, and belongs to the technical field of electrostatic sand planting methods. The invention relates to an electrostatic sand planting method for improving the uniformity of sand planting, which is characterized in that a base material attached with a bonding agent is made to travel through an electric field, sand grains are transmitted into the electric field, under the action of the electric field, the sand grains rise and are attached to the base material, and in the electric field, the sand grains rise firstly to pass through a screen to be homogenized and then are attached to the base material. When the sand planting device is used for sand planting operation of the base material, the uniformity of sand planting can be improved, so that sand grains can be more uniformly distributed on the base material, and the quality of a produced product is better.)

1. An electrostatic sand planting method for improving sand planting uniformity, which enables a substrate (6) attached with adhesive to walk through an electric field, transmits sand grains (7) into the electric field, and the sand grains (7) rise and are attached to the substrate (6) under the action of the electric field, and is characterized in that: in the electric field, the sand grains (7) rise through the screen (8) and are homogenized before being attached to the substrate (6).

2. The electrostatic sand-planting method according to claim 1, characterized in that: the screen (8) is in a traveling state, and the screen (8) travels through an electric field.

3. The electrostatic sand-planting method according to claim 2, characterized in that: the running direction of the screen (8) and the running direction of the base material (6) are intersected when viewed from the top.

4. The electrostatic sand-planting method according to claim 1, characterized in that: the screen (8) is placed under tension.

5. The electrostatic sand-planting method according to claim 1, characterized in that: the screen (8) is set in a vibrating state.

6. The electrostatic sand-planting method according to claim 1, characterized in that: any one mesh of the screen (8) can pass through at least 1 sand grain.

7. The screen panel of claim 1, wherein: the mesh number of the screen mesh (8) is 5-600 meshes.

8. The electrostatic sand-planting method according to claim 1, characterized in that: the distance between the screen (8) and the rising starting point of the sand (7) is less than the distance between the screen (8) and the rising end point of the sand (7).

9. The electrostatic sand-planting method according to claim 1, characterized in that: the screen (8) covers the entire ascending path of the sand (7).

10. The electrostatic sand-planting method according to claim 1, characterized in that: the sand grains (7) are transported in the same or opposite direction as the substrate (6).

Technical Field

The invention relates to an electrostatic sand planting method for improving sand planting uniformity, and belongs to the technical field of electrostatic sand planting methods.

Background

At present, the static sand planting operation of the base material generally adopts reverse sand planting or forward sand planting.

As shown in fig. 1, sand 7 falls onto the sand conveying belt 1 through the lower sand device 2 and is conveyed between the upper pole plate 3 and the lower pole plate 4, under the action of an electric field generated between the upper pole plate 3 and the lower pole plate 4, the sand 7 rises and adheres to a substrate 6 coated with a binder, and the substrate 6 is guided by the substrate guide roller 5 to enter an oven for solidification.

Unlike the reverse sand planting shown in fig. 1, the electrostatic sand planting device for forward sand planting is shown in fig. 2, and the moving direction of the sand grains on the sand conveying belt 1 of the device is the same as the moving direction of the base material, so the device is called forward sand planting. The two sand planting modes are the existing electrostatic sand planting methods: the substrate 6 with the adhesive attached thereto is made to travel through an electric field, and the sand 7 is transferred into the electric field, and the sand 7 rises and adheres to the substrate 6 by the electric field. It can be seen that, in both of the sand planting modes, sand grains directly rise and adhere to the substrate under the action of the electric field generated by the upper and lower electrode plates, the uniformity of sand planting is greatly influenced by the uniformity of the lower sand, and the local unevenness of sand planting can be caused by the mutual collision generated between the sand grains in the electric field.

Disclosure of Invention

The invention aims to: aiming at the problems, the invention provides the electrostatic sand planting method for improving the sand planting uniformity.

The technical scheme adopted by the invention is as follows:

an electrostatic sand planting method for improving the uniformity of sand planting features that the substrate with adhesive is passed through electric field to transfer the sand particles to the electric field, where the sand particles are uniformly spread on the screen and then adhered to the substrate.

When the electrostatic sand planting method is adopted to carry out the sand planting operation of the base material, the principle is as follows: when the substrate attached with the adhesive is made to walk through the electric field and sand grains are transferred into the electric field, obviously, the rising starting point of the sand grains is positioned below the substrate, and the sand grains move upwards under the action of the electric field.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

the electrostatic sand planting method for improving the uniformity of the planted sand is ingenious in conception, and when the electrostatic sand planting method is used for sand planting operation of a base material, the uniformity of the planted sand can be improved, so that sand grains can be distributed on the base material more uniformly, and the quality of a produced product is better.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of an electrostatic sand-planting structure of a reverse sand-planting in the background art;

FIG. 2 is a structural diagram of electrostatic sand planting in the same direction of sand planting in the background art;

FIG. 3 is a schematic diagram of an electrostatic sand-planting structure for improving the uniformity of sand-planting according to the present invention;

FIG. 4 is a structural schematic diagram of the electrostatic sand planting for improving the uniformity of the planted sand in the same direction;

FIG. 5 is a schematic diagram of the winding and unwinding device of the present invention with the screen cloth traveling between the conveyor belt and the substrate travel path;

fig. 6 is a schematic view showing that the running direction of the screen is substantially perpendicular to the running direction of the base material in a plan view of the present invention.

The labels in the figure are: 1-conveying belt, 2-sanding device, 21-blanking hopper, 22-sanding roller, 3-upper polar plate, 4-lower polar plate, 5-guide roller, 6-base material, 6' -base material walking path, 7-sand, 8-screen, 9-winding and unwinding device, 91-unwinding shaft, 92-unwinding guide roller, 93-winding guide roller and 94-winding shaft.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.