Automatic feeding double roller glue coating machine

Abstract

The present application relates to an automatic feeding double-roller glue coating machine, mainly to the technical field of glue coating machines, which includes a chassis, a driving mechanism arranged in the chassis, an operating table arranged on the chassis, a glue coating mechanism arranged on the driving mechanism, and a feeding mechanism arranged on one side of the chassis; the glue coating mechanism includes a support arm whose two ends are respectively fixedly connected to the driving mechanism, a limit plate symmetrically arranged at both ends of the support arm, a glue coating roller passing through the limit plate, and a pressure roller passing through the limit plate; the pressure roller and the glue coating roller are located above the operating table and are rotatably connected to the limit plate, and are arranged parallel to each other; the surface of the glue coating roller is provided with a plurality of grooves in a direction parallel to the axis. The present application has the advantages of high automation and uniform thickness of the glue layer.

Description

Technical Field

[0001] The present application relates to the technical field of glue coating machines, and in particular to an automatic feeding double-roller glue coating machine. Background Art

[0002] Glue coating machine is also called coating machine, glue scraper, automatic glue sprayer, etc. It is a mechanical device mainly used to apply liquid glue on the surface of textiles, paper boxes or leather. There are many types of existing glue coating machines, such as drum glue coating machine, double-acting glue coating machine, double-station lifting glue coating machine, etc.

[0003] At present, common glue coating machines are mainly composed of a frame, glue coating rollers, glue tanks and transmission devices. The glue flows along the glue tank to the surface of the workpiece to be coated, and then the glue coating roller with the roller gap adjusted rolls parallel to the top of the workpiece until the glue forms a thin layer of uniform thickness on the surface of the workpiece. The uniformity of the glue layer thickness is an important indicator to measure the quality standard of the glue coating machine and an important standard for finished product quality control. In the actual use of the above-mentioned glue coating machine, since the glue dripping process spreads from the middle of the glue roller to both ends, it is easy to have the problem of the glue layer thickness in the middle of the workpiece meeting the standard or even too thick, while the edge position is too thin during the processing process. This problem has an adverse effect on product quality.

[0004] With respect to the above-mentioned related technologies, it can be known that the existing glue coating machine has the technical problem of uneven glue layer thickness, which affects the quality of the finished product. Summary of the invention

[0005] In order to increase the uniformity of the thickness of the glue layer of the glue-coated product and improve the quality level of the product, the present application provides an automatic feeding double-roller glue coating machine.

[0006] The present application provides an automatic feeding double-roller glue coating machine adopts the following technical solution: An automatic feeding double-roller glue coating machine comprises a chassis, a driving mechanism arranged in the chassis, an operating table arranged on the chassis, a glue coating mechanism arranged on the driving mechanism and a feeding mechanism arranged on one side of the chassis; the glue coating mechanism comprises a support arm whose two ends are respectively fixedly connected to the driving mechanism, a limit plate symmetrically arranged at both ends of the support arm, a glue coating roller passing through the limit plate and a pressure roller passing through the limit plate; the pressure roller and the glue coating roller are located above the operating table and are rotatably connected to the limit plate, and are arranged parallel to each other; a plurality of grooves are provided on the surface of the glue coating roller in a direction parallel to the axis.

[0007] By adopting the above-mentioned technical scheme, the chassis supports and limits the other parts of the structure of the present application and provides a position for the installation of other parts of the structure. The driving mechanism can provide power for the operation of the gluing mechanism and the feeding mechanism of the present application. The feeding mechanism can transport the glue to the top of the gluing mechanism under the action of the driving mechanism. The support arm in the gluing mechanism can drive the gluing roller and the pressure roller to rotate. The grooves on the gluing roller play a role in receiving the glue from the feeding mechanism. As the gluing roller rotates, the glue received in the grooves can be evenly distributed on the surface of the workpiece to which the glue needs to be applied. The pressure roller arranged parallel to the rear of the gluing roller can flatten the glue into a thin layer with uniform thickness, thereby achieving the purpose of the invention of increasing the uniformity of the thickness of the glue layer of the gluing product and improving the quality level of the product.

[0008] Optionally, the pressure roller includes a roller shaft rotatably connected to the limiting plate, a roller sleeved on the roller shaft, and a heat-conducting rubber sleeved on the roller; and a heating wire is inserted into the roller.

[0009] By adopting the above technical scheme, the roller shaft in the pressure roller plays a limiting role in the installation and rotation of the pressure roller. The roller mounted on the roller shaft can squeeze and flatten the glue liquid. The heat-conductive rubber mounted on the roller can prevent the glue liquid from adhering to the surface of the pressure roller. It has good thermal conductivity and can conduct the heat generated by the heating wire in the roller to the surface of the pressure roller, thereby improving the heating effect of the glue liquid and further improving the glue coating quality.

[0010] Optionally, the support arm is slidably connected to the driving mechanism along a direction perpendicular to the ground.

[0011] By adopting the above technical solution, the structural design of the sliding connection between the support arm and the driving mechanism along the direction perpendicular to the ground allows the distance between the support arm and the upper surface of the workbench to be adaptively adjusted according to the diameters of the pressure roller and the glue coating roller, thereby improving the ease of use and scope of application of the present application.

[0012] Optionally, the driving mechanism includes guide rails symmetrically arranged on both sides of the chassis in the horizontal direction, two sliders slidably connected to the guide rails on both sides, two screws respectively passed through the two sliders, and a driving motor fixed in the chassis; the screw is threadedly matched with the slider, the two screws are connected by a belt drive, and the power output shaft of the driving motor is drivingly connected to any one of the screws.

[0013] By adopting the above technical solution, the sliding connection structure formed by the guide rail and the slider in the driving mechanism can drive the support arm to reciprocate along the length direction of the slide rail. The screw rod passed through the slider can rotate around its own axis under the action of the driving motor. The slider sleeved on the screw rod and matched with the screw rod thread can thus obtain the power to move along the slide rail. The two screw rods are connected by belt drive to achieve torque transmission and synchronous movement.

[0014] Optionally, a guide rod is provided on the slide block; the guide rod is fixed in the chassis along an axial direction parallel to the screw rod.

[0015] By adopting the above technical solution, the guide rod parallel to the axis direction of the screw rod passing through the slider guides the movement of the slider, which can significantly reduce the shaking of the slider during the movement of the slider along the slide rail, making the movement of the support arm more stable.

[0016] Optionally, the feeding mechanism includes a material box arranged on one side of the chassis, an auger whose feed end is connected to the bottom of the material box, a hose and a guide groove connected to the discharge end of the auger; the guide groove is fixed on the support arm.

[0017] By adopting the above technical solution, the material box in the feeding mechanism plays a storage role for the glue liquid. The auger installed on one side of the material box and connected to the bottom of the material box can transport the glue liquid inside the material box to the guide groove through a hose. The guide groove can evenly guide the glue liquid to the groove on the surface of the glue roller along a direction parallel to the axis of the glue coating roller.

[0018] Optionally, the rotating shaft of the auger and the screw are driven by bevel gear meshing.

[0019] By adopting the above technical solution, Optionally, the guide groove includes a shell connected to the hose and an adjustment plate arranged at the bottom of the shell; a guide hole is opened at the bottom of the shell, and the adjustment plate is slidably connected to the bottom of the shell.

[0020] By adopting the above technical solution, the shell in the guide groove plays the role of temporarily receiving and storing the glue liquid. The structure of the sliding connection between the adjustment baffle installed at the bottom of the shell and the shell can be used to adjust the flow rate of the guide groove, thereby adapting to the requirements of different glue layer thicknesses and different glue coating roller diameters for the glue dripping speed.

[0021] Optionally, the operating table includes a platform plate fixedly arranged on the top of the chassis and a vacuum pump arranged on the top of the chassis; the vacuum pump is connected to the bottom of the platform plate, and a plurality of air holes are opened on the platform plate.

[0022] By adopting the above technical solution, the platform plate fixedly arranged on the top of the chassis in the operating table plays the role of receiving and processing the workpiece. The air holes opened on the platform plate can be used for air flow conduction. The vacuum pump is connected to the bottom of the platform plate, and the workpiece can be adsorbed and fixed on the surface of the platform plate by generating negative pressure through vacuum extraction.

[0023] Optionally, the chassis includes a box body, a control panel arranged on the box body, and an inspection door arranged on the box body; the control panel is electrically connected to the driving mechanism.

[0024] By adopting the above technical solution, the box body in the chassis supports other parts of the structure. The control panel installed on the box body can control the start and stop, speed and rotation direction of the drive motor in the drive mechanism. The inspection door installed on the box body can facilitate the staff to repair and maintain the equipment.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The chassis in the present application plays a role of supporting and limiting the other parts of the structure of the present application, and provides a position for the installation of other parts of the structure. The driving mechanism can provide power for the operation of the gluing mechanism and the feeding mechanism of the present application. The feeding mechanism can transport the glue to the top of the gluing mechanism under the action of the driving mechanism. The support arm in the gluing mechanism can drive the gluing roller and the pressure roller to rotate. The grooves provided on the gluing roller play a role of receiving the glue from the feeding mechanism. With the rotation of the gluing roller, the glue received in the grooves can be evenly distributed on the surface of the workpiece to be coated with glue. The pressure roller arranged in parallel behind the gluing roller can flatten the glue into a thin layer of uniform thickness, thereby achieving the invention purpose of increasing the uniformity of the thickness of the glue layer of the gluing product and improving the quality level of the product. 2. The roller shaft in the pressure roller in the present application plays a role in limiting the installation and rotation of the pressure roller. The roller sleeved on the roller shaft can squeeze and flatten the glue liquid. The heat-conducting rubber sleeved on the roller can prevent the glue liquid from adhering to the surface of the pressure roller. It has good thermal conductivity and can conduct the heat generated by the electric heating wire in the roller to the surface of the pressure roller, thereby improving the heating effect of the glue liquid and further improving the glue coating quality. 3. The sliding connection structure formed by the guide rail and the slider in the driving mechanism of the present application can drive the support arm to reciprocate along the length direction of the slide rail. The screw rod passed through the slider can rotate around its own axis under the action of the driving motor. The slider sleeved on the screw rod and matched with the screw thread can thus obtain the power to move along the slide rail. The two screw rods are connected by a belt drive to achieve torque transmission and synchronous movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1It is a structural schematic diagram of an automatic feeding double-roller glue coating machine disclosed in an embodiment of the present application.

[0027] Figure 2 It is a schematic diagram of the structure of the driving mechanism in the embodiment of the present application.

[0028] Figure 3 It is a structural schematic diagram of the gluing mechanism in the embodiment of the present application.

[0029] Figure 4 It is a structural schematic diagram of the feeding mechanism in the embodiment of the present application.

[0030] Explanation of the reference numerals: 1. Chassis; 11. Box body; 12. Control panel; 13. Inspection door; 2. Driving mechanism; 21. Guide rail; 22. Slider; 23. Screw; 24. Driving motor; 25. Guide rod; 3. Operating table; 31. Platform plate; 32. Vacuum pump; 4. Gluing mechanism; 41. Support arm; 42. Limiting plate; 43. Gluing roller; 44. Pressing roller; 441. Roller; 442. Drum; 443. Thermal conductive rubber; 5. Feeding mechanism; 51. Material box; 52. Auger; 53. Hose; 54. Diversion trough; 541. Shell; 542. Adjustment plate. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 -Attached Figure 4 This application is described in further detail.

[0032] Glue coating machine is also called coating machine, glue scraper, automatic glue sprayer, etc. It is a mechanical equipment mainly used to apply liquid glue on the surface of textiles, paper boxes or leather. There are many types of existing glue coating machines, such as drum glue coating machine, double-acting glue coating machine, double-station lifting glue coating machine, etc. At present, common glue coating machines are mainly composed of a frame, a glue coating roller, a glue tank and a transmission device. The glue flows along the glue tank to the surface of the workpiece to be coated, and then the glue coating roller with the roller gap adjusted rolls parallel to the top of the workpiece until the glue forms a thin layer of uniform thickness on the surface of the workpiece. The uniformity of the glue layer thickness is an important indicator to measure the quality standard of the glue coating machine and an important standard for finished product quality control. In the actual use of the above-mentioned glue coating machine, since the glue dripping process spreads from the middle of the glue roller to both ends, it is easy to have the problem that the glue layer thickness in the middle of the workpiece meets the standard or is even too thick, while the edge position is too thin during the processing process. This problem has an adverse effect on product quality. In order to increase the uniformity of the thickness of the glue layer of the glue-coated product and improve the quality level of the product, the present application provides an automatic feeding double-roller glue coating machine.

[0033] The present application embodiment discloses an automatic feeding double-roller glue coating machine. Figure 1The automatic feeding double-roller gluing machine includes a chassis, a driving mechanism, an operating table, a gluing mechanism and a feeding mechanism. The chassis is fixedly arranged on a horizontal ground, the driving mechanism is installed inside the chassis, the operating table is installed on the top of the chassis, the gluing mechanism is located above the operating table and is fixedly connected to the driving mechanism in the chassis. The feeding mechanism is located on one side of the chassis.

[0034] Reference Figure 1 The chassis 1 includes a box body 11, a control panel 12 and an inspection door 13. Among them, the box body 11 is a rectangular hollow metal box. A supporting leg is vertically installed at each of the four corners of the bottom of the box body 11. Two long and parallel waist-shaped holes are provided on the upper surface of the box body 11. A control panel 12 is installed on the side wall of the box body 11. The control panel 12 is electrically connected to the drive mechanism 2 and can control the start and stop, speed and movement direction of the drive mechanism 2. An inspection door 13 is provided on the side wall of the box body 11, and the inspection door 13 is rotatably connected to the box body 11 along an axis parallel to the side wall.

[0035] Reference Figure 1 and Figure 2 The driving mechanism 2 includes a guide rail 21, a slider 22, a screw 23, a driving motor 24 and a guide rod 25. There are two guide rails 21. The two guide rails 21 are arranged parallel to each other. The guide rails 21 are installed on the inner bottom surface of the box body 11. The upper and lower positions of the guide rails 21 and the waist-shaped holes opened on the upper surface of the box body 11 correspond to each other. A slider 22 is installed on each guide rail 21. The slider 22 is slidably connected to the guide rail 21, and can slide along the length direction of the guide rail 21, and pass through the inside of the box body 11 through the long waist-shaped holes opened on the upper surface of the box body 11. The screw 23 and the guide rod 25 are arranged parallel to each other. There is a screw 23 and a guide rod 25 on each guide rail 21, and the screw 23 and the guide rod 25 are both passed through the slider 22. The screw 23 and the slider 22 are threadedly matched, and the two screws 23 are connected by a belt drive. Any one of the screw rods 23 is connected to the power output shaft of the driving motor 24 by means of gear transmission. The driving motor 24 can transmit torque to the screw rod 23 through gears, and the rotation of the screw rod 23 can push the slider 22 to slide along the guide rail 21. The guide rod 25 is a solid cylindrical metal rod with a smooth surface. The guide rod 25 can cooperate with the screw rod 23 to improve the stability of the slider 22 during movement.

[0036] Reference Figure 1The operating table 3 includes a platform plate 31 and a vacuum pump 32. The platform plate 31 and the vacuum pump 32 are both fixedly mounted above the chassis 1, and the platform plate 31 is a hollow metal plate. A plurality of air holes are provided through the upper surface of the platform plate 31. The suction end of the vacuum pump 32 is connected to the interior of the platform plate 31 of the platform plate 31. The vacuum pump 32 can create a negative pressure environment inside the platform plate 31 by extracting a vacuum, so that the workpiece to be processed placed on the upper surface of the platform plate 31 is adsorbed on the platform plate 31.

[0037] Reference Figure 1 and Figure 3 , the glue coating mechanism 4 includes a support arm 41, a limit plate 42, a glue coating roller 43 and a pressure roller 44. Among them, the two ends of the support arm 41 are respectively mounted on the two sliders 22, and the support arm 41 and the slider 22 are slidably connected along a direction perpendicular to the ground. There are two limit plates 42, which are fixedly mounted on the two ends of the support arm 41. The two ends of the glue coating roller 43 and the pressure roller 44 are respectively passed through the two limit plates 42, and are rotatably connected with the limit plates 42. The surface of the glue coating roller 43 is provided with a plurality of grooves along a direction parallel to the axis. The plurality of grooves are evenly distributed along the circumference of the surface of the glue coating roller 43. The axis of the pressure roller 44 is arranged parallel to the axis of the glue coating roller 43. The pressure roller 44 includes a roller shaft 441, a roller 442 and a heat-conducting rubber 443. The roller shaft 441 is inserted through the limit plate 42 and is rotatably connected to the limit plate 42. The roller 442 is fixedly sleeved on the roller shaft 441. A heating wire is inserted into the roller 442. A heat-conducting rubber 443 is sleeved on the surface of the roller 442. The heat generated by the heating wire after being energized can be transferred to the surface of the pressure roller 44 through the heat-conducting rubber 443, thereby achieving heating and shaping of the glue liquid.

[0038] Reference Figure 1 and Figure 4 The feeding mechanism 5 includes a material box 51, an auger 52, a hose 53 and a guide groove 54. Among them, the material box 51 is a hollow cylindrical metal box. The auger 52 is arranged side by side with the material box 51, and the bottom of the auger 52 is connected to the bottom of the material box 51. A communicating vessel is formed between the auger 52 and the material box 51. The discharge end of the auger 52 is connected to the top of the guide groove 54 through a hose 53. The rotating shaft of the auger 52 is connected to any screw by a bevel gear transmission. The guide groove 54 includes a shell 541 and an adjustment plate 542. The shell 541 is fixedly mounted on the support arm 41, and a guide hole is opened at the bottom of the shell 541. The adjustment plate 542 is mounted at the bottom of the shell 541 and is slidably connected to the shell 541. The adjustment plate 542 can change the opening size of the guide hole at the bottom of the shell 541 by sliding. The guide groove 54 is located above the glue coating roller 43.

[0039] The implementation principle of an automatic feeding double-roller glue coating machine of the embodiment of the present application is as follows: first, the auger 52 transports the glue liquid in the material box 51 to the guide groove 54 through the hose 53, and then the guide groove 54 evenly drips the glue liquid into the groove of the glue coating roller 43. The driving motor 24 in the driving mechanism 2 drives the screw 23 to rotate, and the screw 23 pushes the slider 22 to slide along the direction of the slide rail. The support arm 41 installed on the slider 22 drives the glue coating roller 43 and the pressure roller 44 to roll on the upper surface of the workpiece to be processed as the slider 22 moves. The glue coating roller 43 evenly applies the glue liquid on the surface of the workpiece in strips, and the pressure roller 44 heats the glue liquid and flattens it to form a uniform glue layer. During this period, the platform plate 31 in the operating table 3 fixes the workpiece on the upper surface of the platform plate 31 by negative pressure adsorption under the action of the vacuum pump 32 to avoid the dislocation of the workpiece during the processing.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic feeding double-roller glue coating machine, characterized in that: The invention comprises a chassis (1), a driving mechanism (2) arranged in the chassis (1), an operating table (3) arranged on the chassis (1), a gluing mechanism (4) arranged on the driving mechanism (2), and a feeding mechanism (5) arranged on one side of the chassis (1); the gluing mechanism (4) comprises a support arm (41) whose two ends are respectively fixedly connected to the driving mechanism (2), a limit plate (42) symmetrically arranged at two ends of the support arm (41), a gluing roller (43) passing through the limit plate (42), and a pressing roller (44) passing through the limit plate (42); the pressing roller (44) and the gluing roller (43) are located above the operating table (3) and are rotatably connected to the limit plate (42), and are arranged parallel to each other; a plurality of grooves are provided on the surface of the gluing roller (43) in a direction parallel to the axis.

2. The automatic feeding double-roller glue coating machine according to claim 1, characterized in that: The pressure roller (44) comprises a roller shaft (441) rotatably connected to the limiting plate (42), a roller (442) sleeved on the roller shaft (441), and a heat-conducting rubber (443) sleeved on the roller (442); an electric heating wire is inserted into the roller (442).

3. The automatic feeding double-roller glue coating machine according to claim 1 is characterized in that: The support arm (41) is slidably connected to the drive mechanism (2) along a direction perpendicular to the ground.

4. The automatic feeding double-roller glue coating machine according to claim 1, characterized in that: The driving mechanism (2) comprises guide rails (21) symmetrically arranged on both sides of the chassis (1) along the horizontal direction, two sliders (22) respectively slidably connected to the guide rails (21) on both sides, two screw rods (23) respectively inserted through the two sliders (22), and a driving motor (24) fixedly arranged in the chassis (1); the screw rod (23) is threadedly matched with the sliders (22), the two screw rods (23) are connected by a belt drive, and the power output shaft of the driving motor (24) is drivingly connected to any one of the screw rods (23).

5. The automatic feeding double-roller glue coating machine according to claim 4 is characterized in that: A guide rod (25) is provided on the sliding block (22); the guide rod (25) is fixedly arranged in the chassis (1) along an axial direction parallel to the screw rod (23).

6. The automatic feeding double-roller glue coating machine according to claim 4, characterized in that: The feeding mechanism (5) comprises a material box (51) arranged on one side of the chassis (1), an auger (52) whose feeding end is connected to the bottom of the material box (51), a hose (53) connected to the discharge end of the auger (52), and a guide groove (54); the guide groove (54) is fixedly arranged on the support arm (41).

7. The automatic feeding double-roller glue coating machine according to claim 6, characterized in that: The rotating shaft of the auger (52) and the screw rod (23) are driven by meshing bevel gears.

8. The automatic feeding double-roller glue coating machine according to claim 6, characterized in that: The guide groove (54) comprises a shell (541) in communication with the hose (53) and an adjustment plate (542) arranged at the bottom of the shell (541); a guide hole is provided at the bottom of the shell (541), and the adjustment plate (542) is slidably connected to the bottom of the shell (541).

9. The automatic feeding double-roller glue coating machine according to claim 1, characterized in that: The operating table (3) comprises a platform plate (31) fixedly arranged on the top of the chassis (1) and a vacuum pump (32) arranged on the top of the chassis (1); the vacuum pump (32) is connected to the bottom of the platform plate (31), and a plurality of air holes are provided on the platform plate (31).

10. The automatic feeding double-roller glue coating machine according to claim 1, characterized in that: The chassis (1) comprises a box body (11), a control panel (12) arranged on the box body (11), and an inspection door (13) arranged on the box body (11); the control panel (12) is electrically connected to the drive mechanism (2).

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