Constant-temperature maintaining device for square carpet PVC (polyvinyl chloride) glue tank

Abstract

The utility model relates to the technical field of square carpet production line corollary equipment, in particular to a square carpet PVC (polyvinyl chloride) glue tank constant temperature keeping device which comprises a PVC glue stirring tank with a double-body interlayer structure, water is injected into an interlayer, and PVC glue is stored in the tank. The water inlet end is connected with a water inlet valve through a lead-in pipe, the water inlet valve is connected with a return pipe to a temperature control circulator, and the water inlet end of the circulator is connected with a circulating pipe, is connected with the lead-out pipe and is externally connected with a refrigerator for temperature control; and the PLC control system is connected with all parts to realize integral control. According to the constant-temperature maintaining device for the square carpet PVC glue tank, the constant temperature of the glue tank is realized through interlayer water circulation and feedback of the temperature sensor, and the stable quality of a glue solution is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of supporting equipment for carpet tile production lines, and in particular to a constant temperature maintaining device for PVC glue tanks used for carpet tiles. Background Technology

[0002] Before production, PVC carpet tiles require pre-mixing of the PVC adhesive for easy use during the manufacturing process. The viscosity of the mixed adhesive has specific process requirements. Too high a viscosity makes adhesive delivery difficult through pipelines, significantly impacts the cutting speed, and hinders thickness control. Too low a viscosity necessitates increased liquid plasticizer, increasing costs and resulting in a softer finished product with potential odor issues. In actual mixing, changes in external temperature can have adverse effects. For example, high summer temperatures can cause the mixing tank to overheat, leading to premature adhesive curing and affecting quality. Low winter temperatures increase the viscosity of the liquid plasticizer, resulting in poor dispersibility, requiring approximately 20% more plasticizer for the same formula. This increases costs, causes significant viscosity variations between batches, leads to unstable adhesive quality, and can even cause slowdowns due to excessive viscosity, resulting in inconsistent finished product hardness and other quality problems. Therefore, maintaining stable adhesive quality and eliminating the influence of external temperature on the mixing tank is crucial. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide a constant temperature maintaining device for PVC glue tanks used for carpet tiles, which aims to solve the problems mentioned in the background art.

[0004] This utility model embodiment is implemented as follows: A constant temperature maintaining device for a PVC glue container used for carpet tiles includes: a PVC glue mixing tank, which is a double-layered tank containing PVC glue. The interlayer is filled with water. An outlet pipe is connected to the outlet pipe, and a temperature sensor is installed on the outlet pipe to detect the water temperature discharged through the outlet pipe. An inlet pipe is connected to the inlet pipe, and an inlet valve is installed on the inlet pipe to control the inlet flow rate. The inlet valve is connected to a return pipe, and the inlet end of the return pipe is connected to a temperature-controlled circulator. The return pipe is connected to the outlet end of the temperature-controlled circulator, and the inlet end of the temperature-controlled circulator is connected to a circulation pipe, which is connected to the outlet pipe's outlet end. An external chiller is connected to the temperature-controlled circulator to lower the circulating water temperature. A PLC control system is connected to the entire device for controlling the entire system.

[0005] Preferably, the PVC glue mixing tank, water inlet valve, and temperature sensor are each provided with four sets.

[0006] Preferably, the inlet valve is an electric proportional valve.

[0007] Preferably, both the temperature sensor and the water inlet valve can feed back signals to the PLC control system.

[0008] The constant temperature maintaining device for PVC glue tanks used in carpet tiles provided by this utility model can accurately maintain the temperature of each glue tank, keep the glue quality stable, eliminate the influence of external ambient temperature on the mixing tank, ensure the stability of PVC glue quality, ensure the stability of finished product quality, and also ensure smooth production. In addition, it eliminates the need to add 20% plasticizer in winter, reducing costs and achieving the effects of improving quality and reducing consumption. This can improve production efficiency, reduce finished product quality problems, ensure smooth production, and achieve the goal of improving quality and efficiency. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of a temperature-controlled device for PVC glue tanks used to maintain the temperature of carpet tiles.

[0010] In the attached diagram: 1-PVC glue mixing tank, 2-outlet pipe, 3-temperature sensor, 4-inlet pipe, 5-water inlet valve, 6-return pipe, 7-temperature control circulator, 8-circulation pipe, 9-refrigeration unit, 10-PLC control system. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and do not limit the present utility model.

[0012] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0013] Please see Figure 1 This utility model provides a temperature-controlled device for a PVC glue tank containing carpet tiles, comprising:

[0014] A PVC glue mixing tank 1 is a double-layered tank containing PVC glue. The jacket is filled with water. A drain pipe 2 is connected to the water outlet of the PVC glue mixing tank 1, and a temperature sensor 3 is installed on the drain pipe 2 to detect the water temperature discharged from the drain pipe 2. A water inlet pipe 4 is connected to the water inlet of the PVC glue mixing tank 1, and a water inlet valve 5 is installed on the water inlet pipe 4 to control the water inflow. A return pipe 6 is connected to the water inlet of the return pipe 6, and a temperature-controlled circulator 7 is connected to the water outlet of the temperature-controlled circulator 7. A circulation pipe 8 is connected to the water inlet of the temperature-controlled circulator 7, and the circulation pipe 8 is connected to the water outlet of the drain pipe 2. A chiller 9 is externally connected to the temperature-controlled circulator 7 to lower the circulating water temperature. A PLC control system 10 is connected to the entire device and is used to control the entire device.

[0015] like Figure 1 As shown, in a preferred embodiment of this utility model, the PVC glue mixing tank 1, the water inlet valve 5, and the temperature sensor 3 are all provided with four sets.

[0016] like Figure 1 As shown, in a preferred embodiment of this utility model, the water inlet valve 5 is an electric proportional valve.

[0017] like Figure 1 As shown, in a preferred embodiment of this utility model, both the temperature sensor 3 and the water inlet valve 5 can feed back signals to the PLC control system 10.

[0018] Working principle: First, the required temperature of the PVC glue mixing tank 1 is set through the PLC control system 10. Then, the temperature control circulation machine 7 is turned on. If the temperature of the PVC glue is lower than the set temperature, the temperature circulation machine 7 turns on the heating mode. The circulating water pump on the temperature circulation machine 7 pumps water from the return pipe 6 and the inlet pipe 4 into the glue tank jacket of the PVC glue mixing tank 1 to heat the glue. Then, the water flows back to the temperature circulation machine 7 through the outlet pipe 2 and the circulation pipe 8. If the temperature of the glue is higher than the set temperature, the temperature circulation machine 7 turns on the external chiller 9 mode. The circulating water pump on the temperature circulation machine 7 pumps water from the return pipe 6 and the inlet pipe 4 into the glue tank jacket of the PVC glue mixing tank 1 to cool the glue. Then, the water flows back to the temperature circulation machine 7 through the outlet pipe 2 and the circulation pipe 8. The PLC control system 10 controls the opening size of the water inlet valve 5 according to the temperature sensor 3 detecting the temperature difference from the set value. The PLC control system 10 controls the speed of the circulating water pump on the temperature circulation machine 7 according to the feedback of the four sets of water inlet valves 5.

[0019] In addition, the circulating water pump on the temperature circulation machine 7 is controlled by a frequency converter, and the speed corresponds to the opening size of the four sets of inlet valves 5. The speed needs to be calibrated in advance. The inlet valves 5 and the temperature control circulation machine 7 are both controlled by the PLC control system 10. The inlet valves 5 and the temperature control circulation machine 7 both have feedback signals to the PLC control system 10.

[0020] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A constant temperature maintaining device for a PVC glue container used for carpet tiles, comprising a PVC glue mixing tank, characterized in that, The PVC glue mixing tank is a double-layered tank. The tank contains PVC glue, and the jacket is filled with water. An outlet pipe is connected to the outlet of the PVC glue mixing tank, and a temperature sensor is installed on the outlet pipe to detect the water temperature discharged from the outlet pipe. An inlet pipe is connected to the inlet of the PVC glue mixing tank, and an inlet valve is installed on the inlet pipe to control the water flow rate. The inlet valve is connected to a return pipe, and the inlet of the return pipe is connected to a temperature-controlled circulator. The return pipe is connected to the outlet of the temperature-controlled circulator, and the inlet of the temperature-controlled circulator is connected to a circulation pipe, which is connected to the outlet of the outlet pipe. An external chiller is connected to the temperature-controlled circulator to lower the circulating water temperature. The PLC control system is connected to the entire device and is used to control the entire device.

2. The constant temperature maintaining device for PVC glue tanks used in carpet tiles according to claim 1, characterized in that, The PVC glue mixing tank, water inlet valve, and temperature sensor are each equipped with four sets.

3. The constant temperature maintaining device for PVC glue tanks used in carpet tiles according to claim 2, characterized in that, The inlet valve is an electric proportional valve.

4. The constant temperature maintaining device for PVC glue tanks used in carpet tiles according to claim 1, characterized in that, Both the temperature sensor and the water inlet valve can send signals back to the PLC control system.

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