Recycling method of waste coating for preform wire drawing

Abstract

The invention discloses a method for recovering a waste coating during drawing of a preform, which can automatically collect the residual coating in a coating die holder after fiber breakage occurs in the drawing process of an optical fiber preform. A waste material receiving container capable of movably receiving materials is arranged at the bottom of a coating module, a moving module of the waste material receiving container is controlled through a control box, a signal input end of the control box is connected to a broken fiber emergency stop signal of a wire drawing master control cabinet, and when the broken fiber emergency stop signal of the wire drawing master control cabinet is sent out, the wire drawing master control cabinet is started to cut off the broken fiber. And the signal input end of the control box is used for receiving, and the control box controls the moving module to move, so that the waste receiving container is arranged under the bottom of the coating module, and residual coating in the coating module is collected.

Description

Technical Field

[0001] The invention relates to the technical field of optical fiber production, in particular to a method for recovering waste coatings from preform rod drawing. Background Art

[0002] After a fiber break occurs during the normal drawing process of an optical fiber preform, there is still residual coating in the coating mold seat. The existing optical fiber preform drawing equipment does not have the function of automatically collecting coating. If the production staff fails to find the fiber break in time and take corresponding measures, this part of the coating will drip into the UV lamp, and even drip into the guide wheel groove and the surface of the diameter gauge, causing pollution to the various parts of the UV lamp, the guide wheel and the diameter gauge lens. The production staff must clean the UV lamp, guide wheel and diameter gauge in time before re-mold drawing, which increases the workload, prolongs the waiting time for mold drawing, and reduces production efficiency. If the production staff does not clean the UV lamp and diameter gauge properly, re-drawing may cause quality problems such as poor fiber curing and many coating defects, resulting in a large waste of manpower, material resources and time, and seriously affecting the production efficiency of optical fiber drawing. Summary of the invention

[0003] In view of the above problems, the present invention provides a method for recovering waste coatings during preform drawing, which can automatically collect the residual coatings in the coating mold base after fiber breakage occurs during the optical fiber preform drawing process.

[0004] A method for recovering waste coatings from preform rod drawing, characterized in that a movable waste receiving container for receiving materials is arranged at the bottom of a coating module, the mobile module of the waste receiving container is controlled by a control box, the signal input end of the control box is connected to the fiber break emergency stop signal of a drawing main control cabinet, when the fiber break emergency stop signal of the drawing main control cabinet sends out a fiber break emergency stop signal, the signal input end of the control box receives the signal, and the control box controls the mobile module to move, so that the waste receiving container is placed directly below the bottom of the coating module to collect residual coatings in the coating module.

[0005] It is further characterized by:

[0006] The mobile module includes a telescopic cylinder, a linear guide rail, and a sliding base. The bottom of the waste receiving container is fixedly mounted on the sliding base. The bottom of the sliding base is supported on the linear guide rail through a guide rail pair. The output end of the telescopic cylinder is connected to one side of the sliding base. The telescopic cylinder drives the sliding base to move linearly along the linear guide rail.

[0007] When the telescopic cylinder is in an extended state, the waste receiving container is located directly below the coating module; when the telescopic cylinder is in a retracted state, the waste receiving container is arranged on one side directly below the coating module;

[0008] The linear guide rail comprises two groups of rails arranged in parallel, and the area between the two groups of rails is used to penetrate the optical fiber in a normal working state;

[0009] When fiber breakage occurs suddenly during normal wire drawing, the control box receives the fiber breakage emergency stop signal and immediately controls the telescopic cylinder to extend and slide the waste receiving container on the linear guide to the bottom of the coating module to catch the residual coating dripping from the coating module. When the mold is to be penetrated, the control box is controlled to shrink the telescopic cylinder and slide the waste receiving container to the side, thus clearing the center line position and allowing normal mold penetration and wire drawing operations.

[0010] It is further characterized by:

[0011] The waste receiving container is a waste cup;

[0012] The telescopic rod of the telescopic cylinder has a telescopic length of about 20 cm and is used to control the movement of the sliding base;

[0013] The linear guide rails are two parallel rails with a width of 15 cm and a length of 50 cm, which are used for guiding the movement of the sliding base;

[0014] The waste cup has a diameter of 20 cm and a height of 20 cm. The waste cup is made of plastic and is used to store waste paint. When the waste liquid level in the waste cup reaches a set height, the waste cup is removed to pour out the waste, and then the waste cup is installed again.

[0015] The control box is used to receive the fiber break emergency stop signal from the main control cabinet and control the operation of the telescopic cylinder.

[0016] After adopting the present invention, the first heat exchanger and the second heat exchanger have the same shape, and the tops of the first heat exchanger and the second heat exchanger form an inverted V-shaped heat exchanger with an angle α, which can solve the bottom icing problem of the low-temperature heat pump air conditioner during the defrosting process and optimize the energy utilization efficiency of the unit at partial load. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A simplified diagram of the device structure corresponding to the method of the present invention;

[0018] The names corresponding to the serial numbers in the figure are as follows:

[0019] Coating module 1, control box 2, telescopic cylinder 3, linear guide rail 4, sliding base 5, adjustable mold base frame 6, waste cup 7. DETAILED DESCRIPTION

[0020] A method for recycling waste coatings from preform rod drawing, see Figure 1: A movable waste receiving container for receiving materials is arranged at the bottom of the coating module 1, and the mobile module of the waste receiving container is controlled by the control box 2. The signal input end of the control box 2 is connected to the fiber break emergency stop signal of the wire drawing main control cabinet. When the fiber break emergency stop signal of the wire drawing main control cabinet sends out the fiber break emergency stop signal, the signal input end of the control box 2 receives it, and the control box controls the mobile module to move, so that the waste receiving container is placed directly below the bottom of the coating module 1 to collect the residual coating in the coating module 1.

[0021] In a specific implementation, the mobile module includes a telescopic cylinder 3, a linear guide rail 4, and a sliding base 5. The bottom of the waste receiving container is fixedly mounted on the sliding base 5. The bottom of the sliding base 5 is supported on the linear guide rail 4 through a guide rail pair. The output end of the telescopic cylinder 3 is connected to one side of the sliding base 5. The telescopic cylinder 3 drives the sliding base 5 to move linearly along the linear guide rail 4.

[0022] When the telescopic cylinder 3 is extended, the waste receiving container is located directly below the coating module 1, and when the telescopic cylinder 3 is retracted, the waste receiving container is arranged on one side directly below the coating module 1;

[0023] The linear guide rail 4 includes two groups of rails arranged in parallel, and the area between the two groups of rails is used to penetrate the optical fiber in normal working state;

[0024] When fiber breakage occurs suddenly during normal wire drawing, after the control box 2 receives the fiber breakage emergency stop signal, the control box 2 immediately controls the telescopic cylinder 3 to extend the telescopic cylinder 3 so that the waste receiving container slides on the linear guide rail 4 to the bottom of the coating module 1 to catch the residual coating dripping from the coating module 1; when the mold is to be penetrated, the control box 2 is controlled so that the waste receiving container slides to the side after the telescopic cylinder 3 is contracted, thereby giving up the center line position and performing normal mold penetration and wire drawing operations.

[0025] In the specific embodiment, see Figure 1 : The coating module 1 is placed on an adjustable mold base 6, and the waste receiving container is a waste cup 7. The diameter of the waste cup 7 is 20 cm and the height is 20 cm. The waste cup 7 is made of plastic material. The waste cup 7 is used to store waste coatings. When the waste liquid level in the waste cup 7 reaches a set height, the waste cup 7 is removed to pour out the waste, and then the waste cup 7 is installed again;

[0026] The telescopic rod of the telescopic cylinder 3 has a telescopic length of about 20 cm, which is used to control the movement of the sliding base 5; the linear guide rails 4 are two side-by-side guide rails with a width of 15 cm and a length of 50 cm, which are used to guide the movement of the sliding base 5;

[0027] The control box 1 is used to receive the fiber break emergency stop signal from the main control cabinet and control the operation of the telescopic cylinder 3. The control box 1 is equipped with a solenoid valve for controlling the extension and retraction of the telescopic cylinder 3. The control box 1 is equipped with a PLC for receiving the fiber break emergency stop signal and driving the solenoid valve to open or close. The control box 1 is also equipped with a button, which is manually pressed to drive the telescopic cylinder to retract.

[0028] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A method for recycling waste coatings from preform rod drawing, characterized in that: A movable waste receiving container for receiving materials is provided at the bottom of the coating module. The mobile module of the waste receiving container is controlled by a control box. The signal input end of the control box is connected to the fiber break emergency stop signal of the wire drawing main control cabinet. When the fiber break emergency stop signal of the wire drawing main control cabinet sends out a fiber break emergency stop signal, the signal input end of the control box receives it, and the control box controls the mobile module to move, so that the waste receiving container is placed directly below the bottom of the coating module to collect residual coating in the coating module.

2. The method for recycling waste coating material during preform rod drawing according to claim 1, characterized in that: The mobile module includes a telescopic cylinder, a linear guide rail, and a sliding base. The bottom of the waste receiving container is fixedly mounted on the sliding base. The bottom of the sliding base is supported on the linear guide rail through a guide rail pair. The output end of the telescopic cylinder is connected to one side of the sliding base. The telescopic cylinder drives the sliding base to move linearly along the linear guide rail.

3. The method for recycling waste coating material during preform rod drawing according to claim 2, characterized in that: When the telescopic cylinder is in an extended state, the waste receiving container is located directly below the coating module. When the telescopic cylinder is in a retracted state, the waste receiving container is arranged on one side directly below the coating module.

4. The method for recycling waste coating material during preform drawing according to claim 2, characterized in that: The linear guide rail comprises two groups of rails arranged in parallel, and the area between the two groups of rails is used to penetrate the optical fiber in a normal working state.

5. The method for recycling waste coating material during preform drawing according to claim 2, characterized in that: When fiber breakage occurs suddenly during normal wire drawing, the control box receives the fiber breakage emergency stop signal and immediately controls the telescopic cylinder to extend and slide the waste receiving container on the linear guide to the bottom of the coating module to catch the residual coating dripping from the coating module. When the mold is to be penetrated, the control box is controlled to shrink the telescopic cylinder and slide the waste receiving container to the side, thus clearing the center line position and allowing normal mold penetration and wire drawing operations.

6. The method for recycling waste coating material during preform drawing according to claim 1, characterized in that: The waste receiving container is a waste cup.

7. The method for recycling waste coating material during preform drawing according to claim 2, characterized in that: The linear guide rails are two side-by-side guide rails with a width of 15 cm and a length of 50 cm, which are used for guiding the movement of the sliding base.

8. The method for recycling waste coating material during preform drawing according to claim 2, characterized in that: The telescopic rod of the telescopic cylinder has a telescopic length of about 20 cm and is used to control the movement of the sliding base.

9. The method for recycling waste coating material during preform drawing according to claim 6, characterized in that: The waste cup has a diameter of 20 cm and a height of 20 cm. The waste cup is made of plastic and is used to store waste paint. When the waste liquid level in the waste cup reaches a set height, the waste cup is removed and the waste is poured out, and then the waste cup is installed again.

10. The method for recycling waste coating material during preform drawing according to claim 2, characterized in that: The control box is used to receive the fiber break emergency stop signal from the main control cabinet and control the operation of the telescopic cylinder.

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