阅读说明：本技术 玻璃管抗划伤方法、玻璃管抗划伤装置和玻璃管切割系统 (Glass tube scratch-resistant method, glass tube scratch-resistant device and glass tube cutting system ) 是由 张顶 张增强 王艳辉 李�远 任士芳 田鹏 刘彬 韩军 于 2021-08-04 设计创作，主要内容包括：本发明涉及玻璃制备技术领域,公开了玻璃管抗划伤方法、玻璃管抗划伤装置和玻璃管切割系统,所述玻璃管抗划伤方法包括：步骤S10：在玻璃管的外壁面设置表面活性剂层。所述玻璃管抗划伤装置包括喷涂机构,所述喷涂机构具有喷射部,所述喷射部设置为能够朝向玻璃管喷射表面活性剂溶液。所述玻璃管切割系统包括用于切割玻璃管的切割机以及设置于所述切割机的上游的上述玻璃管抗划伤装置。(The invention relates to the technical field of glass preparation, and discloses a glass tube scratch-resistant method, a glass tube scratch-resistant device and a glass tube cutting system, wherein the glass tube scratch-resistant method comprises the following steps: step S10: a surfactant layer is provided on the outer wall surface of the glass tube. The glass tube scratch-resistant device comprises a spraying mechanism, wherein the spraying mechanism is provided with a spraying part, and the spraying part is arranged to be capable of spraying surfactant solution towards the glass tube. The glass tube cutting system comprises a cutting machine for cutting a glass tube and the glass tube scratch-resistant device arranged at the upstream of the cutting machine.)

1. The scratch-resistant method for the glass tube is characterized by comprising the following steps:

step S10: a surfactant layer is provided on the outer wall surface of the glass tube (20).

2. A method as claimed in claim 1, wherein the surfactant layer comprises a non-ionic surfactant layer;

further, the nonionic surfactant layer includes a polyoxyethylene sorbitan monooleate layer.

3. A method as claimed in claim 1, characterized in that the thickness of the surfactant layer is 20nm to 50 nm.

4. A method as claimed in claim 1, wherein the step S10 includes:

step S10 a: preparing a surfactant solution;

step S10 b: spraying the surfactant solution prepared in the step S10a on the outer wall surface of the glass tube (20);

step S10 c: and drying the sprayed surfactant solution to form the surfactant layer.

5. A method of scratching resistance of a glass tube according to claim 4,

in the step S10a, the surfactant solution has a mass percentage concentration of 5% to 8%;

in the step S10b, the liquid spraying pressure is 0.1-0.3 MPa;

in the step S10c, the drying temperature is 250-300 ℃.

6. Glass tube scratch resistance device, characterized in that glass tube scratch resistance device (10) includes spray mechanism (12), spray mechanism (12) have the injection portion, the injection portion sets up to be able to spray surfactant solution towards glass tube (20).

7. The glass tube scratch resistant device according to claim 6, wherein the spraying mechanism (12) comprises a plurality of spray heads (120), the plurality of spray heads (120) are formed as the spraying part, on a vertical plane perpendicular to the axial direction of the glass tube (20), the spray heads (120) are projected towards the vertical plane, the plurality of spray heads (120) are distributed along the circumferential direction of the glass tube (20), and the plurality of spray heads (120) jointly enclose to form a passage for the glass tube (20) to pass through.

8. A glass tube scratch resistant arrangement in accordance with claim 7, wherein a plurality of said spray heads (120) are staggered in an axial direction along the glass tube (20);

preferably, the interval between the adjacent shower heads (120) is 30mm to 50mm in the axial direction of the glass tube (20).

9. Glass tube scratch resistant arrangement according to claim 7 or 8, characterized in that the spray head (120) has a nozzle directed towards the glass tube (20), the distance between the nozzle and the glass tube (20) being 50-200 mm; and/or

The glass tube scratch-resistant device (10) comprises a shell (18), the spraying mechanism (12) is arranged in the shell (18), and an inlet and an outlet for the glass tube (20) to enter and exit are respectively arranged on a pair of mutually opposite side walls of the shell (18).

10. Glass tube cutting system, characterized in that the glass tube cutting system (40) comprises a cutting machine (22) for cutting a glass tube (20) and a glass tube scratch resistant device (10) according to any one of claims 6 to 9 arranged upstream of the cutting machine (22).

Technical Field

The invention relates to the technical field of glass preparation, in particular to a glass tube scratch-resistant method, a glass tube scratch-resistant device and a glass tube cutting system.

Background

In the preparation and processing process of the glass tube, after the glass tube is subjected to drawing and cutting processes in sequence, the cut glass tube section is conveyed to the next process. For example, after the medical glass tube is processed and the drawing and cutting processes are sequentially carried out, a plurality of glass tube sections obtained by cutting are conveyed side by side, and the glass tube sections conveyed side by side can collide with each other, so that the surface of the glass tube is very easy to scratch, and the yield is reduced.

At present, the material of the conveyer belt which is in direct contact with the glass tubes is mainly replaced by wood or plastic so as to reduce scratches or increase the distance between the two glass tubes, but the mode still causes the collision between the glass tubes, and the scratch resistant effect is not good.

Disclosure of Invention

The invention aims to overcome the problem that the glass tube sections are easy to collide with each other to cause scratch when a plurality of glass tube sections in a row are conveyed by a conveying belt in the prior art, and provides a glass tube scratch-resistant method.

In order to achieve the above object, an aspect of the present invention provides a scratch resistant method for a glass tube, the scratch resistant method comprising:

step S10: a surfactant layer is provided on the outer wall surface of the glass tube.

According to the technical scheme, the surface active agent layer is arranged on the outer wall surface of the glass tube, so that the glass tube can be protected, the glass tube is not easily scratched in the conveying process, the scratching rate can be reduced to below 5%, and the impact resistance and the friction resistance of the glass tube are improved.

Preferably, the surfactant layer comprises a nonionic surfactant layer.

Preferably, the nonionic surfactant layer comprises a polyoxyethylene sorbitan monooleate layer.

Preferably, the thickness of the surfactant layer is 20nm to 50 nm.

Preferably, the step S10 includes:

step S10 a: preparing a surfactant solution;

step S10 b: spraying the surfactant solution prepared in the step S10a on the outer wall surface of the glass tube;

step S10 c: and drying the sprayed surfactant solution to form the surfactant layer.

Preferably, in the step S10a, the surfactant solution has a mass percentage concentration of 5% to 8%;

in the step S10b, the liquid spraying pressure is 0.1-0.3 MPa;

in the step S10c, the drying temperature is 250-300 ℃.

A second aspect of the present invention provides a glass tube scratch resistant apparatus including a spray mechanism having a spray portion configured to spray a surfactant solution toward a glass tube.

Preferably, the spraying mechanism comprises a plurality of spray heads, the spray heads are formed into the spraying part, the spray heads project towards a vertical surface perpendicular to the axial direction of the glass tube, the spray heads are distributed along the circumferential direction of the glass tube, and the spray heads jointly enclose a channel for the glass tube to pass through.

Preferably, the plurality of the shower heads are staggered in the axial direction of the glass tube.

Preferably, the distance between adjacent spray heads in the axial direction of the glass tube is 30mm to 50 mm.

Preferably, the spray head is provided with a nozzle facing the glass tube, and the distance between the nozzle and the glass tube is 50mm-200 mm; and/or

The glass tube scratch-resistant device comprises a shell, wherein the spraying mechanism is arranged in the shell, and an inlet and an outlet for the glass tube to enter and exit are respectively formed in a pair of side walls, opposite to each other, of the shell.

A third aspect of the present invention provides a glass tube cutting system including a cutter for cutting a glass tube and a glass tube scratch resistant device provided by the present invention disposed upstream of the cutter.

Drawings

FIG. 1 is a schematic view showing the overall construction of a glass tube cutting system according to a preferred embodiment of the present invention, in which a glass tube scratch resistant device according to a preferred embodiment of the present invention is provided;

fig. 2 is a schematic cross-sectional view of a scratch resistant apparatus for a glass tube according to a preferred embodiment of the present invention.

Description of the reference numerals

10-a glass tube scratch resistant device; 12-a spraying mechanism; 120-a spray head; 14 a-a gas supply tube; 14 b-a gas supply control valve; 16 a-a supply tube; 16 b-a liquid supply control valve; 20-a glass tube; 40-a glass tube cutting system; 22-a cutter; 24-a tractor; 240-traction wheels.

Detailed Description

In the present invention, the use of directional terms such as "upper, lower, left and right" in the absence of a contrary explanation generally means that the directions shown in the drawings and the practical application are considered to be the same, and "inner and outer" mean the inner and outer of the outline of the component.

The invention provides a scratch-resistant method for a glass tube, which comprises the following steps of S10: the surfactant layer is provided on the outer wall surface of the glass tube 20, and a surfactant solution may be applied or sprayed on the outer wall surface of the glass tube 20, and the surfactant solution may be dried to form the surfactant layer on the outer wall surface of the glass tube 20. The surface active agent layer is arranged on the outer wall surface of the glass tube 20, so that the glass tube 20 can be protected, the glass tube 20 is not easily scratched in the conveying process, the scratching rate can be reduced to be below 5%, and the impact resistance and the friction resistance of the glass tube 20 are improved. The glass tube scratch resistant method is particularly suitable for borosilicate glass such as medium borosilicate glass.

Wherein the surfactant layer may include a non-ionic surfactant layer; further preferably, the nonionic surfactant layer may include a polyoxyethylene sorbitan monooleate layer. It should be noted that, a nonionic surfactant such as polyoxyethylene sorbitan monooleate may be prepared into an aqueous solution, and then the aqueous solution is coated or sprayed on the surface of the glass tube 20, and after the aqueous solution is dried, a nonionic surfactant layer is formed, wherein the drying temperature of the aqueous solution may be selected according to actual requirements, and it should be noted that, when the glass tube 20 has a certain temperature, the required drying temperature may also be provided for the aqueous solution.

The thickness of the surfactant layer can be 20nm-50nm, so that the protective effect is ensured, and the formation of the surfactant layer is facilitated.

In order to better dispose the surfactant layer on the surface of the glass tube 20, the step S10 may include the steps of:

step S10a, preparing a surfactant solution, preferably, preparing a surfactant aqueous solution, where the surfactant aqueous solution has a mass percentage concentration of 5% to 8%, so as to facilitate spraying of the surfactant solution and drying of the surfactant solution, where the kind of the surfactant is mentioned in the foregoing, and is not described herein again;

step S10b, spraying the surfactant solution prepared in step S10a on the outer wall surface of the glass tube 20, wherein the spraying pressure can be 0.1 to 0.3MPa, and by setting the spraying pressure within the above range, the spraying effect is improved, so that the finally formed surfactant layer is more uniform;

and S10c, drying the sprayed surfactant solution to form a surfactant layer, wherein the drying temperature can be 250-300 ℃, so that the drying efficiency is improved, and the formed surfactant layer is more uniform. It is noted that the glass tube 20 itself has a certain temperature during the processing, and thus can provide a desired drying temperature for the surfactant solution to facilitate rapid evaporation of solvent components such as moisture in the surfactant solution.

The invention also provides a glass tube scratch resistant device, the glass tube scratch resistant device 10 comprises a spraying mechanism 12, the spraying mechanism 12 is provided with a spraying part, the spraying part can be set to spray surfactant solution towards the glass tube 20, and after the surfactant solution is dried, a surfactant layer can be formed on the outer wall surface of the glass tube 20, so that the glass tube 20 can be protected, the scratch resistance of the glass tube 20 is improved, and the impact resistance and the friction resistance of the glass tube 20 are also improved. The surfactant solution is mentioned in the foregoing, and is not described herein again.

Referring to fig. 1 and 2, the spraying mechanism 12 may include a plurality of spray heads 120, the plurality of spray heads 120 may be formed as spraying portions, and the plurality of spray heads 120 may be projected toward a vertical plane perpendicular to the axial direction of the glass tube 20, and the plurality of spray heads 120 may be distributed along the circumferential direction of the glass tube 20, whereby the spraying liquid of the glass tube 20 may be ensured to be uniform, so that the outer wall surface of the glass tube 20 may be sprayed with the surfactant solution, and finally, the thickness of the surfactant layer on the outer wall surface of the glass tube 20 may be ensured to be uniform. In addition, it will be appreciated that a plurality of the spray heads 120 may collectively enclose a channel through which the glass tube 20 passes.

In order to further improve the uniformity of the spraying, the plurality of spray heads 120 may be staggered along the axial direction of the glass tube 20, and it is understood that the plurality of spray heads 120 may be located in different planes, so long as they are located in the same plane after being projected toward the vertical plane. The interval between the adjacent spray heads 120 may be 30mm to 50mm in the axial direction of the glass tube 20, so that the outer wall surface of the glass tube 20 is further uniformly covered with the surfactant solution.

The head 120 has a nozzle facing the glass tube 20, and it is understood that the nozzle can spray the surfactant solution toward the glass tube 20 with a distance of 50mm to 200mm from the glass tube 20, thereby not only allowing the surfactant solution to be uniformly sprayed to the outer wall surface of the glass tube 20 but also reducing the loss of the surfactant solution. Preferably, the interval between the nozzle and the glass tube 20 is 80mm to 150mm

To reduce the contamination of the space, a housing 18 may be provided, and the spray mechanism 12 may be disposed within the housing 18, that is, the housing 18 may house the spray mechanism 12 therein such that the surfactant solution is not substantially diffused into the external space when the spray mechanism 12 sprays the surfactant solution, and the housing 18 may have a pair of side walls opposite to each other, and the pair of side walls may be provided with an inlet and an outlet for the glass tube 20, respectively. It will be appreciated that both the inlet and outlet are in communication with the channel for smooth passage of the glass tube 20.

In addition, as shown in fig. 2, a gas supply pipe 14a through which a compressed gas such as compressed air passes and a liquid supply pipe 16a through which a surfactant solution passes, each of which communicates with a corresponding spray head 120, may be provided. A gas supply control valve 14b may be provided on the gas supply pipe 14a, the gas supply control valve 14b being capable of controlling the flow rate of the compressed gas in the gas supply pipe 14 a; further, a liquid supply control valve 16b may be provided on the liquid supply pipe 16a, and the liquid supply control valve 16b may control the flow rate of the surfactant solution in the liquid supply pipe 16 a.

The present invention also provides a glass tube cutting system, and the glass tube cutting system 40 may include a cutter 22 for cutting the glass tube 20 and the glass tube scratch resistant apparatus 10 provided in the present invention disposed upstream of the cutter 22, such that, before cutting, a surfactant solution may be sprayed to the glass tube 20 to be able to form a surfactant layer on an outer wall surface of the glass tube 20, thereby making the cut glass tube sections less susceptible to scratch by the protection of the surfactant layer after colliding with each other during side-by-side conveyance.

Further, as shown in fig. 1, a drawing machine 24 for drawing the glass tube 20 may be provided upstream of the glass tube scratch resistance apparatus 10, the drawing machine 24 being provided with a plurality of pairs of drawing wheels 240, the pairs of drawing wheels 240 being opposed to each other, and a gap for passing the glass tube 20 being formed between the pairs of drawing wheels 240. It will be appreciated that after the glass tube 20 is drawn off the drawing wheel 240, it enters the glass tube scratch resistance apparatus 10 where the surfactant solution is sprayed, and after the surfactant layer is formed, a cutting process is performed to obtain a plurality of glass tube segments side by side, and then the plurality of glass tube segments side by side are conveyed to the next process.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the individual specific technical features in any suitable way. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.