Automatic control gluing device for square PVC (polyvinyl chloride) production line

Abstract

The utility model relates to the technical field of corollary equipment of a square carpet production line, in particular to an automatic control gluing device of a square PVC (polyvinyl chloride) production line, which comprises PVC glue, a conveyor belt, a first color code sensor, a second color code sensor, a proportioning valve and a mounting plate. The first color code sensor, the second color code sensor and the proportioning valve are mounted on the mounting plate above the conveying belt, the position states of the first color code sensor and the second color code sensor can be adjusted, the color recognition can be calibrated, and the opening size of the proportioning valve can be subjected to PID (Proportion Integration Differentiation) calibration. The device is matched equipment of a square PVC (polyvinyl chloride) production line, is beneficial supplement of an automatic square carpet production line, and can avoid the problems of glue breaking and glue overflowing no matter the speed change of the production line or the flow change caused by the glue viscosity change and the glue liquid level change. The product quality stability can be improved, waste of raw materials is reduced, manual control is changed into automatic control, manpower can be reduced, and the purposes of improving quality and improving efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting equipment for a square carpet production line, in particular to an automatic control glue coating device for a square PVC production line. Background Art

[0002] With the development of technology, the square carpet PVC production line can realize automatic embryo blanket feeding, glass fiber feeding, automatic temperature control, tension control, curling control, as well as carpet cutting, packaging, and stacking, which greatly saves manpower and improves efficiency. However, in actual operation, the switch and flow rate of the mixed PVC glue are manually controlled. Under normal circumstances, there is no problem with manual control. In special cases such as abnormal feeding of square PVC carpet embryo blankets and abnormal oven temperature, manual processing is required to go to other places. At this time, the production line slows down or speeds up, and the control of the glue coating amount changes lags. If the personnel go to other places to deal with the problem and do not return in time, the production line continues to produce automatically, and there may be problems of glue breaking or glue leaking. When the glue is broken, the finished carpet lacks glue and becomes waste; when the glue leaks onto the equipment, it not only causes waste, but also leaks onto the conveyor belt and rollers, which can seriously affect the thickness of the finished glue, resulting in defective products or production interruption. Therefore, a square PVC carpet automatic control glue coating device is needed to solve the above problems. Utility Model Content

[0003] The purpose of the embodiment of the utility model is to provide an automatic control glue coating device for a block PVC production line, which can automatically adjust the amount of glue stored while ensuring normal production, avoid glue leakage, and eliminate the hidden danger of defective carpets.

[0004] The utility model is implemented as follows: an automatic control glue coating device for a square PVC production line includes: PVC glue, a conveyor belt, a first color mark sensor, a second color mark sensor, a proportional control valve and a mounting plate, characterized in that the first color mark sensor, the second color mark sensor and the proportional control valve are installed on the mounting plate above the conveyor belt, the position status of the first color mark sensor and the second color mark sensor can be adjusted, the color recognition can be calibrated, and the opening size of the proportional control valve can be PID calibrated.

[0005] Preferably, the proportional control valve is located near the top of the conveyor belt, and the size of the proportional control valve opening is adjustable and the PID parameters can be pre-set.

[0006] Preferably, the first color mark sensor and the second color mark sensor can pre-calibrate the color of the PVC glue to ensure normal recognition.

[0007] Preferably, the first color mark sensor is installed at the front end of the proportional regulating valve to ensure a normal amount of glue applied, and the second color mark sensor is installed at the rear end of the proportional regulating valve to ensure a normal amount of glue applied.

[0008] Preferably, the proportional regulating valve is installed at a position 10-20 cm above the mounting plate, and the first color mark sensor and the second color mark sensor are installed at the upper end of the mounting plate.

[0009] The utility model is a supporting equipment for the square PVC production line and a beneficial supplement to the automatic square carpet production line. It can avoid the problems of glue breaking and glue bubbling, whether it is the speed change of the production line or the change of the viscosity of the glue liquid and the change of the glue liquid level, which leads to the change of flow rate. It can improve the stability of product quality, reduce the waste of raw materials, change manual control to automatic control, reduce labor, achieve the purpose of improving quality and efficiency, and can be widely promoted. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the automatic control glue coating device of the square PVC production line.

[0011] In the attached figure: 1-PVC glue, 2-conveyor belt, 3-first color mark sensor, 4-second color mark sensor, 5-proportional regulating valve, 6-mounting plate. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and do not limit the utility model.

[0013] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0014] See also Figure 1 The utility model provides an automatic control glue coating device for a block PVC production line, and the automatic control glue coating device for a block PVC production line includes:

[0015] PVC glue 1, conveyor belt 2, first color mark sensor 3, second color mark sensor 4, proportional control valve 5 and mounting plate 6, wherein the first color mark sensor 3, second color mark sensor 4 and proportional control valve 5 are mounted on the mounting plate 6 above the conveyor belt 2, the position states of the first color mark sensor 3 and second color mark sensor 4 are adjustable, the color recognition can be calibrated, and the opening size of the proportional control valve 5 can be PID calibrated.

[0016] During normal operation, PVC glue 1 flows to the running conveyor belt 2 through the adjusted proportional regulating valve 5. The position of the first color mark sensor 3 and the second color mark sensor 4 is adjusted to control the amount of PVC glue 1 to about 20 cm in front of the scraper. Then the scraper bonds the PVC glue 1, the blank carpet and the glass cloth and puts them into the heating zone for curing. If the production line slows down due to the blank carpet, temperature control and other reasons, or the flow rate increases due to the decrease in glue viscosity, the increase in glue level and the pressure, and the amount of PVC glue 1 exceeds the detection position of the first color mark sensor 3, a signal will be sent to completely close the proportional regulating valve 5 and send an alarm signal for manual intervention to avoid glue leakage. If the conveyor belt 2 speeds up, or the amount of PVC glue 1 does not reach the position of the second color mark sensor 4 due to the increase in glue viscosity, the decrease in glue level and the pressure, a signal will be sent to slow down the production line and send an alarm signal for manual intervention to avoid glue shortage in the carpet.

[0017] like Figure 1 As shown, as a preferred embodiment of the utility model, the position of the proportional control valve 5 is close to the top of the conveyor belt 2, and the size of the opening of the proportional control valve 5 can be adjusted and the PID parameters can be pre-set.

[0018] The size calibration of the proportional control valve 5 opening is very important. The production line speed is between 0-10M. The control current of the proportional control valve 5 is 4-20ma. The opening size is PID-set according to the production line speed. 0m corresponds to 4ma opening completely closed, and 10m corresponds to 20ma opening completely open. In this way, it can be ensured that the proportional control valve 5 can be adjusted completely according to the production line speed and the amount of glue stored before the scraper.

[0019] like Figure 1 As shown, as a preferred embodiment of the present utility model, the first color mark sensor 3 and the second color mark sensor 4 can pre-calibrate the color of the PVC glue to ensure normal recognition.

[0020] like Figure 1 As shown, as a preferred embodiment of the utility model, the first color mark sensor 3 is installed at the front end of the proportional control valve 5 to ensure a normal amount of glue coating, and the second color mark sensor 4 is installed at the rear end of the proportional control valve 5 to ensure a normal amount of glue coating.

[0021] like Figure 1 As shown, as a preferred embodiment of the utility model, the proportional control valve 5 is installed at a position 10-20 cm above the mounting plate 6, and the first color mark sensor 3 and the second color mark sensor 4 are installed at the upper end of the mounting plate 6.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic control glue coating device for a block PVC production line, comprising PVC glue, a conveyor belt, a first color mark sensor, a second color mark sensor, a proportional regulating valve and a mounting plate, characterized in that: The first color mark sensor, the second color mark sensor, and the proportional control valve are installed on a mounting plate above the conveyor belt. The position states of the first color mark sensor and the second color mark sensor are adjustable, the color recognition is calibrated, and the opening size of the proportional control valve is PID calibrated.

2. The automatic control glue coating device for the block PVC production line according to claim 1 is characterized in that: The position of the proportional control valve is close to the top of the conveyor belt, and the size of the proportional control valve opening is adjustable and the PID parameters can be pre-set.

3. The automatic control glue coating device for the block PVC production line according to claim 1 is characterized in that: The first color mark sensor and the second color mark sensor can pre-calibrate the color of the PVC glue to ensure normal recognition.

4. The automatic control glue coating device for the block PVC production line according to claim 1 is characterized in that: The first color mark sensor is installed at the front end of the proportional regulating valve to ensure a normal amount of glue applied, and the second color mark sensor is installed at the rear end of the proportional regulating valve to ensure a normal amount of glue applied.

5. The automatic control glue coating device for the block PVC production line according to claim 1 is characterized in that: The proportional regulating valve is installed at a position 10-20 cm above the mounting plate, and the first color mark sensor and the second color mark sensor are installed at the upper end of the mounting plate.

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