A low energy consumption glue coating machine

Abstract

The invention relates to the field of preparation of fiber reinforced composite materials, and specifically to a low-energy consumption glue coating machine, comprising a machine body, characterized in that a cloth placing roller, a cloth guide roller, a glue storage tank, a glue coating mechanism, a cooling mechanism and a film coating mechanism are sequentially arranged on the machine body along the direction of the cloth, the cloth placing roller and the cloth guide roller are fixedly connected to the machine body via a bracket, the glue coating mechanism is provided with an upper heating roller and a lower heating roller connected to a heater, the upper heating roller is located directly above the lower heating roller and the two are parallel, the cloth on the cloth placing roller passes through the cloth guide roller and passes between the upper heating roller and the lower heating roller, the upper heating roller is driven by a motor, the lower heating roller is connected to the lower heating roller via a gear set and a synchronous belt, a glue storage tank is arranged on the upper left part of the upper heating roller, a glue liquid recovery tank is arranged below the glue storage tank and the heating roller, the glue coated cloth is cooled by the cooling mechanism and then coated and rolled up by the film coating mechanism, and the machine has the advantages of simple structure, adjustable glue coating thickness, simplified procedure, high glue coating efficiency, good energy-saving and environmental protection effects, and the like.

Description

Technical Field

[0001] The invention relates to the field of preparation of fiber reinforced composite materials, in particular to a low-energy consumption glue coating machine with adjustable glue coating thickness, high glue coating efficiency and good energy-saving and environmental protection effects. Background Art

[0002] At present, the glue dipping machines on the market generally include cloth placing rollers, cloth guiding rollers, glue dipping tanks, drying mechanisms and reeling mechanisms. After the cloth is dipped in the glue dipping tank, it is dried in the drying mechanism and then reeled. This glue dipping method is relatively rough and cannot set the glue thickness and whether the glue dipping is uniform. In addition, due to the presence of a drying mechanism, a large amount of energy is consumed, making it difficult to meet environmental protection requirements. In addition, since there is no additional pressure on the cloth during the glue dipping process, a little dust or cotton wool will easily cause agglomeration.

[0003] The Chinese patent, entitled "A Glue Dipping Machine" and with the patent number "201410020611.2", discloses a glue dipping machine, including a frame, a cloth feeding roller is arranged in front of the frame, a cloth discharging roller is arranged in the rear, and a glue dipping tank is arranged at the rear lower part of the frame. The invention is characterized in that a first tensioning roller is arranged at the upper front part of the frame, a second tensioning roller is arranged at the rear of the first tensioning roller, a dust collecting device is arranged between the first tensioning roller and the second tensioning roller, a vacuum compressor is arranged at the lower part of the dust collecting device, an upper suction cylinder and a lower suction cylinder are arranged in the dust collecting device, and an upper suction cylinder is arranged at the lower part of the upper suction cylinder. A lower suction port is arranged above the lower suction cylinder, a gap for cloth to pass through is left between the upper suction port and the lower suction port, two cloth pressing rollers are arranged in parallel in the dipping tank, a water level gauge is arranged on one side of the dipping tank, a fixed frame is arranged at the frame position above the dipping tank, a bracket is arranged on the fixed frame, a scraper body is fixedly mounted on the bracket, a dryer is arranged at the frame position above the dipping tank, although a dust suction device is added to this dipping machine before dipping, there are still problems such as high equipment production cost, high energy consumption, and inability to set the dipping thickness, whether the dipping is uniform, etc. Summary of the invention

[0004] In order to solve the deficiencies of the prior art, the present invention provides a method with the advantages of good gluing effect, adjustable gluing thickness, high degree of automation, energy saving and environmental protection.

[0005] In order to achieve the above functions, the present invention will adopt the following technical solutions:

[0006] A low-energy consumption glue coating machine comprises a machine body, characterized in that a cloth placing roller, a cloth guide roller, a glue storage tank, a glue coating mechanism, a cooling mechanism and a film coating mechanism are sequentially arranged on the machine body along the direction of the cloth, the cloth placing roller and the cloth guide roller are fixedly connected to the machine body via a bracket, the glue coating mechanism is provided with an upper heating roller and a lower heating roller connected to a heater, the upper heating roller and the lower heating roller are connected to the machine body via a heating roller bracket, the upper heating roller is located directly above the lower heating roller and the two are parallel, the cloth on the cloth placing roller passes through the cloth guide roller and passes between the upper heating roller and the lower heating roller, the upper heating roller is driven by a motor, and the lower heating roller is connected to the lower heating roller via a gear set and a synchronous belt. The upper left part of the upper heating roller is provided with a glue storage tank which is fixedly connected to the machine body via a bracket, the glue storage tank is provided with a glue outlet, and a glue recovery tank is provided below the glue storage tank and the heating roller to facilitate the recovery and reuse of the glue. After the cloth is glued by the glue coating mechanism, it enters the cooling machine through the cloth guide roller. The cooling mechanism comprises a cooling box and a cooling machine. No less than 3 cooling rollers are arranged at intervals in the cooling box. The cooling machine is connected with the cooling rollers in the cooling box through a conduit. The cooling rollers are arranged in parallel with the heating rollers. The cloth moves forward in a wave-like manner along the cooling rollers in the cooling box to increase the contact area. The cooled cloth is coated and wound by the coating mechanism.

[0007] The upper heating roller and the lower heating roller of the present invention are both provided with a hollow structure, and are both connected to the water storage tank of the heating machine through a conduit. The heating machine is provided with a temperature controller, and the temperature of the heating roller is adjusted by the temperature controller. The temperature of the heating roller is generally 60-70 degrees Celsius.

[0008] The length of the glue recovery tank of the present invention is slightly greater than the length of the heating roller, generally not less than 1.1 times the length of the heating roller; the glue recovery tank is mainly used to collect unused glue left on the cloth, and a glue recovery control unit can be set, a first pressure sensor is provided at the lower end of the glue recovery tank, the glue recovery tank is fixedly connected to the glue storage tank via a glue guide hose, and a pump is provided on the glue guide hose.

[0009] The cloth placing roller of the present invention is provided with a magnetic powder tension controller, the cloth guiding roller is provided with a tension sensor, and the tension sensor and the magnetic powder tension controller are both connected to the tension controller.

[0010] The machine body of the present invention is provided with a heating roller bracket, and the heating roller bracket is provided with a vertical downward limiting slide and a slider matched with the limiting slide, the front and rear ends of the upper heating roller are respectively connected to the slider via matching rotating shaft sleeves, deep groove ball bearings and shaft elastic retaining rings, and the two ends of the lower heating roller are respectively fixedly connected to the heating roller bracket via matching rotating shaft sleeves, deep groove ball bearings and shaft elastic retaining rings.

[0011] The present invention is provided with an upper heating roller height adjustment unit, which can be a manual adjustment unit, a pneumatic adjustment unit or a hydraulic adjustment unit. When it is a pneumatic adjustment unit, the pneumatic adjustment unit includes a cylinder, and the cylinder is provided with a cylinder bracket, and the cylinder bracket is fixedly connected to the sliders of the front and rear sections of the upper heating roller respectively. When it is a hydraulic adjustment, the electric control hydraulic station outputs a constant pressure to control the height of the upper heating roller;

[0012] The glue storage tank of the present invention is provided with a second pressure sensor to determine the amount of glue in the glue storage tank. The glue outlet of the glue storage tank is duckbill-shaped, the number of glue outlets is not less than 3, preferably 5-7, and glue is discharged at multiple points. A control valve is provided at the glue outlet.

[0013] The control valve at the glue outlet of the glue storage tank described in the present invention can be a manual control valve or a flow rate solenoid valve. The glue storage tank is provided with a heating unit. A hollow structure is provided in the glue storage tank shell. The hollow structure is connected to the heater via a conduit, so that the glue liquid in the glue storage tank can be preliminarily heated to reduce the viscosity of the glue liquid.

[0014] The present invention is provided with a glue control unit, and the glue control unit includes a first pressure sensor, a glue outlet control valve, a cylinder solenoid valve, an input keyboard, a liquid crystal display PLC controller, a pump, a second pressure sensor, and an alarm. The first pressure sensor, the second pressure sensor, and the input keyboard are respectively connected to the PLC controller via an input circuit, and the PLC controller is connected to the alarm, the pump, the liquid crystal display, the cylinder solenoid valve, and the glue outlet control valve via an output circuit. The glue coating thickness is input through the input keyboard, and the PLC controller controls the cylinder solenoid valve and the glue outlet control valve through the output circuit. While adjusting the distance between the upper heating roller and the lower heating roller, the glue outlet control valve is adjusted to control the glue flow rate of the glue outlet. When the glue in the glue recovery tank is recovered to a certain amount, the first pressure sensor sends a control signal to the PLC controller, and the glue returns to the glue storage tank under the action of the pump, so that the colloid is recycled; when the glue in the glue storage tank is less than a certain amount, the second pressure sensor inputs a control signal to the PLC controller, and the PLC controller is connected to the alarm via the output circuit to remind the staff to add glue to the glue storage tank.

[0015] The coating unit described in the present invention includes a cloth guide roller, a unwinding roller, a pressure roller group and a winding roller. The unwinding roller is located below the cloth guide roller. A pressure roller group is provided in front of the unwinding roller. The pressure roller group includes an upper pressure roller and a lower pressure roller. The upper pressure roller and the lower pressure roller cooperate to press the cloth and the film together. A winding roller is provided on the right side of the pressure roller group. The winding roller is driven by a driving motor to roll up the cloth covered with the film through the winding roller to form a finished cloth. A second magnetic powder tension controller is provided on the unwinding roller.

[0016] When in use, the cloth on the cloth placing roller passes through the cloth guide roller and passes between the upper heating roller and the lower heating roller of the gluing mechanism. After the cloth is glued by the gluing mechanism, it enters the cooling machine through the cloth guide roller. The cooled cloth is coated and rolled by the coating mechanism. The glue flow rate, glue recovery, glue addition in the glue storage tank, and the distance between the upper heating roller and the lower heating roller are controlled by the glue control unit, and the degree of automation is high. In addition, when gluing, the temperature of the heating roller only needs to be maintained at 60-70 degrees Celsius, which greatly reduces the requirements for the cooling mechanism. The temperature in the cooling box only needs to be maintained between 15-25 degrees. Compared with the drying mechanism, it has the characteristics of environmental protection and energy saving. The heating unit is arranged on the glue storage tank, which can preheat the glue, reduce the viscosity of the glue, and enhance the gluing effect. Due to the adoption of the above mechanism, the present invention has the advantages of good gluing effect, adjustable glue thickness, high degree of automation, energy saving and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a block diagram of the glue control unit. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings:

[0020] As shown in the figure, a low-energy consumption glue coating machine includes a machine body, characterized in that a cloth-releasing roller 1, a cloth-guiding roller 2, a glue storage tank 3, a glue coating mechanism, a cooling mechanism and a film-coating mechanism are sequentially arranged on the machine body along the direction of the cloth, the cloth-releasing roller and the cloth-guiding roller are fixedly connected to the machine body via a bracket, the cloth-releasing roller is provided with a magnetic powder tension controller, the cloth-guiding roller is provided with a tension sensor, the tension sensor and the magnetic powder tension controller are both connected to the tension controller, the glue coating mechanism is provided with an upper heating roller 4 and a lower heating roller 5 connected to a heater, the upper heating roller 4 and the lower heating roller 5 are both provided with a hollow structure, the upper heating roller and the lower heating roller are both connected to a water storage tank of the heater via a conduit, the heater is provided with a temperature controller, The temperature of the heating roller is adjusted by a temperature controller, and the temperature of the heating roller is generally 60-70 degrees Celsius; the upper heating roller and the lower heating roller are connected to the machine body through a heating roller bracket, the upper heating roller is located directly above the lower heating roller and the two are parallel, the cloth on the cloth placing roller passes through the cloth guide roller and passes between the upper heating roller and the lower heating roller, the upper heating roller is driven by a motor, and the lower heating roller is connected to the lower heating roller through a gear set and a synchronous belt, a heating roller bracket is provided on the machine body, and a vertical downward limiting slide and a slider matched with the limiting slide are provided on the heating roller bracket, the front and rear ends of the upper heating roller are respectively connected to the slider through a matching rotating shaft sleeve, a deep groove ball bearing and an elastic retaining ring for the shaft, and the two ends of the lower heating roller are respectively connected to the slider through a matching rotating shaft sleeve, a deep groove ball bearing and an elastic retaining ring for the shaft. The upper heating roller is fixedly connected to the support via matching rotating shaft sleeves, deep groove ball bearings and shaft elastic retaining rings; an upper heating roller height adjustment unit is provided, and the heating roller height adjustment unit can be a manual adjustment unit, a pneumatic adjustment unit or a hydraulic adjustment unit. When it is a pneumatic adjustment unit, the pneumatic adjustment unit includes a cylinder, and the cylinder is provided with a cylinder bracket. The cylinder bracket is fixedly connected to the sliders of the front and rear sections of the upper heating roller respectively. When it is hydraulic adjustment, the electric control hydraulic station outputs a constant pressure to control the height of the upper heating roller; a glue storage tank 3 is provided on the upper left part of the upper heating roller, and a glue outlet is provided on the glue storage tank 3. A second pressure sensor is provided in the glue storage tank to judge the glue storage The glue amount in the tank is large. The glue outlet of the glue storage tank is duckbill-shaped. The number of glue outlets 6 is not less than 3, preferably 5-7, and the glue is discharged at multiple points. A control valve is provided at the glue outlet 6. The control valve of the glue outlet of the glue storage tank can be a manual control valve or a flow rate solenoid valve. The glue storage tank is provided with a heating unit. A hollow structure is provided in the shell of the glue storage tank. The hollow structure is connected to the heater through a conduit, which can preliminarily heat the glue in the glue storage tank to reduce the viscosity of the glue. A glue recovery tank is provided below the glue storage tank and the heating roller to facilitate the recycling of the glue. The length of the glue recovery tank should be slightly larger than the length of the heating roller, generally not less than 1.1 times; the glue recovery tank is mainly used to recover the unused glue left on the cloth, and a glue recovery control unit can be set. A first pressure sensor is provided at the lower end of the glue recovery tank. The glue recovery tank is fixedly connected to the glue storage tank via a glue guide tube, and a pump is provided on the glue guide tube; after the cloth is coated with glue by the glue coating mechanism, it enters the cooling machine through the cloth guide roller. The cooling mechanism includes a cooling box and a cooling machine. No less than 3 cooling rollers 7 are arranged at intervals in the cooling box. The cooling machine is connected to the cooling roller in the cooling box through a guide tube. The cooling roller 7 is arranged in parallel with the heating roller. The cloth moves forward in a wave-like manner along the cooling roller in the cooling box to increase the contact area. The cooled cloth The laminating mechanism is used for laminating and winding. Since the cloth just coated with glue may cause water vapor in the cooling box during the cooling process, a desiccant can be set in the cooling box. The laminating unit includes a cloth guide roller 8, a reel roller 9, a pressure roller group and a reel roller 10. The reel roller is located below the cloth guide roller. A pressure roller group is provided in front of the reel roller. The pressure roller group includes an upper pressure roller 11 and a lower pressure roller 12. The upper pressure roller and the lower pressure roller cooperate to press the cloth and the film together. A reel roller is provided on the right side of the pressure roller group. The reel roller is driven by a drive motor to roll up the cloth covered with the film through the reel roller to make a finished cloth. A second magnetic powder tension controller is provided on the reel roller. .

[0021] The present invention is provided with a glue coating control unit, and the glue control unit includes a first pressure sensor 13, a glue outlet control valve 14, a cylinder solenoid valve 15, an input keyboard 16, a liquid crystal display 17, a plc controller 18, a pump 19, a second pressure sensor 20, and an alarm 21. The first pressure sensor 13, the second pressure sensor 20, and the input keyboard 16 are respectively connected to the plc controller via an input circuit, and the plc controller is connected to the alarm 21, the pump 19, the liquid crystal display 17, the cylinder solenoid valve 15, and the glue outlet control valve 14 via an output circuit. The glue coating thickness is input through the input keyboard, and the PLC controller controls the cylinder solenoid valve and the glue outlet control valve through the output circuit. While adjusting the distance between the upper heating roller and the lower heating roller, the glue outlet control valve is adjusted to control the glue flow rate at the glue outlet. When the glue in the glue recovery tank is recovered to a certain amount, the first pressure sensor sends a control signal to the PLC controller, and the glue returns to the glue storage tank under the action of the pump to recycle the colloid; when the glue in the glue storage tank is less than a certain amount, the second pressure sensor inputs a control signal to the PLC controller, and the PLC controller is connected to the alarm through the output circuit to remind the staff to add glue to the glue storage tank.

[0022] When in use, the cloth on the cloth placing roller passes through the cloth guide roller and passes between the upper heating roller and the lower heating roller of the gluing mechanism. After the cloth is glued by the gluing mechanism, it enters the cooling machine through the cloth guide roller. The cooled cloth is coated and rolled by the coating mechanism. The glue flow rate, glue recovery, glue addition in the glue storage tank, and the distance between the upper heating roller and the lower heating roller are controlled by the glue control unit, and the degree of automation is high. In addition, when gluing, the temperature of the heating roller only needs to be maintained at 60-70 degrees Celsius, which greatly reduces the requirements for the cooling mechanism. The temperature in the cooling box only needs to be maintained between 15-25 degrees. Compared with the drying mechanism, it has the characteristics of environmental protection and energy saving. The heating unit is arranged on the glue storage tank, which can preheat the glue, reduce the viscosity of the glue, and enhance the gluing effect. Due to the adoption of the above mechanism, the present invention has the advantages of good gluing effect, adjustable glue thickness, high degree of automation, energy saving and environmental protection.

Claims

1. A low energy consumption glue coating machine, comprising a machine body, characterized in that A cloth-releasing roller, a cloth-guiding roller, a glue storage tank, a glue coating mechanism, a cooling mechanism and a film-coating mechanism are arranged in sequence on the machine body along the direction of the cloth. The cloth-releasing roller and the cloth-guiding roller are fixedly connected to the machine body via a bracket. The glue coating mechanism is provided with an upper heating roller and a lower heating roller connected to the heater. The cloth on the cloth-releasing roller passes through the cloth-guiding roller and passes between the upper heating roller and the lower heating roller. The upper heating roller is located directly above the lower heating roller and the two are parallel. The upper heating roller is driven by a motor, and the lower heating roller is connected to the lower heating roller via a gear set and a synchronous belt. A glue storage tank is arranged on the upper left part of the upper heating roller, and a glue outlet is arranged at the lower end of the glue storage tank. A glue recovery tank is provided below the glue tank and the heating roller. The cooling mechanism includes a cooling box and a cooling machine. The cooling box is provided with no less than 3 cooling rollers. The cooling machine is connected to the cooling rollers in the cooling box through a conduit. The cooling rollers are arranged in parallel with the heating rollers. The cloth moves forward in a wave-like manner along the cooling rollers in the cooling box. The cooled cloth is coated and rolled up by the coating mechanism. Hollow structures are provided in the upper heating roller and the lower heating roller. The upper heating roller and the lower heating roller are connected to the water storage tank of the heating machine through a conduit. The heating machine is provided with a temperature controller. The length of the glue recovery tank is no less than 1.1 times, a first pressure sensor is arranged at the lower end of the glue recovery tank, the glue recovery tank is fixedly connected with the glue storage tank via a rubber guide tube, a pump is arranged on the rubber guide tube, a magnetic powder tension controller is arranged on the cloth placing roller, a tension sensor is arranged on the cloth guide roller, the tension sensor and the magnetic powder tension controller are both connected with the tension controller, a heating roller bracket is arranged on the machine body, a vertical downward limiting slideway and a slider matched with the limiting slideway are arranged on the heating roller bracket, and the front and rear ends of the upper heating roller are respectively connected with the slide by a matching rotating shaft sleeve, a deep groove ball bearing and an elastic retaining ring for the shaft The two ends of the lower heating roller are respectively fixedly connected with the heating roller bracket through the matching rotating shaft sleeve, deep groove ball bearing and shaft elastic retaining ring. An upper heating roller height adjustment unit is provided. The upper heating roller height adjustment unit includes a cylinder, a cylinder bracket is provided on the cylinder, and the cylinder bracket is fixedly connected with the sliders of the front and rear sections of the upper heating roller. A second pressure sensor is provided in the glue storage tank. The glue outlet of the glue storage tank is duckbill-shaped, and the number of the glue outlets is not less than 3. A control valve is provided at the glue outlet. The control valve of the glue outlet of the glue storage tank is a manual control valve, which is also a flow rate solenoid valve. The glue storage tank is provided with a heating unit. A hollow structure is provided in the shell of the glue storage tank. The hollow structure is connected to the heater through a conduit to preliminarily heat the glue in the glue storage tank to reduce the viscosity of the glue. A glue coating control unit is provided. The glue control unit includes a first pressure sensor, a glue outlet control valve, a cylinder solenoid valve, an input keyboard, a liquid crystal display PLC controller, a pump, a second pressure sensor, and an alarm. The first pressure sensor, the second pressure sensor, and the input keyboard are respectively connected to the PLC controller through an input circuit. The LC controller is connected to the alarm, pump and LCD display, cylinder solenoid valve and glue outlet control valve through the output circuit. The laminating unit includes a cloth guide roller, an unwinding roller, a pressure roller group and a winding roller. The unwinding roller is located below the cloth guide roller. A pressure roller group is provided in front of the unwinding roller. The pressure roller group includes an upper pressure roller and a lower pressure roller. The upper pressure roller and the lower pressure roller cooperate to press the cloth and the film together. A winding roller is provided on the right side of the pressure roller group. The winding roller is driven by a driving motor to roll up the cloth covered with the film through the winding roller to make the finished cloth. The unwinding roller is provided with a second magnetic powder tension controller.

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