Floatable rotary glue spreading roller and glue spreading equipment thereof

Abstract

The invention relates to the technical field of gluing, in particular to a floatable rotary gluing roller and gluing equipment thereof. Comprising a rubber roller which is rotatably installed on a rubber roller shaft through a bearing, the two ends of the rubber roller shaft are installed on a rubber roller frame, the middle of the rubber roller frame is connected with the bottom of a spline shaft, the spline shaft is vertically and movably installed in a rolling spline pair, and the rolling spline pair is connected with a rotating sleeve of a rotating air cylinder through a screw. The top of the spline shaft is connected with a spring guide rod which is vertically and movably installed in a rotating air cylinder, the top of the rotating air cylinder is connected with an installation base, a pressure sensor is arranged in the installation base, the top of the spring guide rod upwards penetrates out of the rotating air cylinder and the installation base and extends into the pressure sensor, and a spring blocking table is arranged on the side wall of the spring guide rod. And a spring is arranged between the spring baffle table and the pressure sensor. According to the glue spreading device, rotation of the glue roller in the horizontal direction is achieved, floating of the glue roller in the vertical direction is achieved, the downward pressure on the glue roller is controllable, and the uniformity and consistency of glue spreading are improved.

Description

Technical field:

[0001] The invention relates to the technical field of glue coating, in particular to a floating rotary glue coating roller and glue coating equipment thereof. Background technology:

[0002] At present, when applying glue to some precision components, the thickness and uniformity of the glue are very high during the gluing process. The general thickness of the glue is only about 2μm, and it needs to be applied evenly to ensure a firm bond. However, the existing glue rollers and gluing equipment cannot accurately control the thickness of the glue. If too much glue is applied, the glue will overflow, affecting the precision. If too little glue is applied, the fixation will not be firm enough, and it is easy to fall off later, affecting the use of the product. In addition, during the gluing process, the existing equipment is difficult to ensure the uniformity of the glue coating on the workpiece to be glued. It is easy to have too much glue and too little glue, which will eventually affect the product quality. There is currently no good solution to the above problems.

[0003] In summary, the above problems encountered in the process of gluing precision components have become technical problems that need to be solved urgently in the industry. Summary of the invention:

[0004] In order to make up for the deficiencies of the prior art, the present invention provides a floating rotary glue coating roller and glue coating equipment thereof, which solves the problem that the thickness and uniformity of glue are difficult to ensure in the glue coating process for precision components in the past.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A floating rotary rubber coating roller comprises a rubber roller, which is rotatably mounted on a rubber roller shaft through a bearing, two ends of the rubber roller shaft are mounted on a rubber roller frame, the middle part of the rubber roller frame is connected to the bottom of a spline shaft, the spline shaft is movably mounted in a rolling spline pair, the rolling spline pair is connected to a rotating sleeve of a rotating cylinder through a screw, the top of the spline shaft is connected to a spring guide rod movably mounted in the rotating cylinder, the top of the rotating cylinder is connected to a mounting seat, a pressure sensor is arranged in the mounting seat, the top of the spring guide rod passes upward through the rotating cylinder and the mounting seat and extends into the pressure sensor, a spring stop is arranged on the side wall of the spring guide rod, a spring is arranged between the spring stop and the pressure sensor, the pressure of the rubber roller after being compressed is transmitted to the pressure sensor through the spline shaft, the spring guide rod and the spring, the pressure of the rubber roller is controlled, and thus the thickness of the rubber coating on the rubber roller is controlled.

[0007] Elastic pins matching the rubber roller shaft are installed at the positions above the rubber roller shaft at both ends of the rubber roller frame, a long hole is provided in the rubber roller frame for the rubber roller shaft to float up and down, and an elastic retaining ring is provided at the position of the rubber roller shaft outside the rubber roller frame for limiting.

[0008] A limiting boss is provided at the position where the spring guide rod is connected to the spline shaft.

[0009] A gluing device with a floating rotating glue coating roller comprises a frame, on which an X-axis motion pair, a Y-axis motion pair and a Z-axis motion pair are installed, the rotating glue coating roller is installed on the Z-axis motion pair, a conveyor line is provided below the rotating glue coating roller, a workpiece to be glued is placed on the conveyor line, a belt assembly is installed on the frame on one side of the conveyor line, and a mixing plate and a plurality of spreading plates are installed in sequence from far to near on the frame on the other side of the conveyor line.

[0010] The tape assembly includes a take-up roller and a pay-out roller installed on a frame, two support rollers are arranged between the take-up roller and the pay-out roller, and are used to support the tape flat, with the adhesive surface of the tape facing upwards, and the X-axis motion pair, the Y-axis motion pair and the Z-axis motion pair drive the rotating glue coating roller to reciprocate on the tape along the Y-axis direction for multiple times, and are used to clean up excess glue on the rotating glue coating roller.

[0011] The rubber mixing plate is used to mix the rubber evenly, and the X-axis motion pair, the Y-axis motion pair and the Z-axis motion pair drive the rotating rubber coating roller to reciprocate multiple times along the X-axis direction and the Y-axis direction on the rubber mixing plate to mix the rubber evenly and adhere it to the rotating rubber coating roller.

[0012] The spreading plate is used to flatten and thin the glue on the rotating glue coating roller. The X-axis motion pair, the Y-axis motion pair and the Z-axis motion pair drive the rotating glue coating roller to reciprocate along the Y-axis direction on the spreading plate for multiple times, so that part of the glue remains on the rotating glue coating roller and the other part of the glue remains on the spreading plate.

[0013] The bottoms of the rubber mixing plate and the spreading plate are both provided with heating devices.

[0014] The X-axis motion pair, the Y-axis motion pair and the Z-axis motion pair drive the rotating glue coating roller to move once along the Y-axis direction on the workpiece to be coated with glue, so as to evenly coat the glue on the workpiece to be coated with glue.

[0015] The present invention adopts the above scheme and has the following advantages:

[0016] By setting a pressure sensor, the pressure of the rubber roller after being compressed during glue coating can be transmitted to the pressure sensor in sequence through the spline shaft, spring guide rod and spring. The pressure sensor sends a signal to the controller, and the controller can control the action of the Z-axis motion pair to keep the pressure of the rubber roller within the set range. The pressure of the rubber roller directly affects the thickness of the glue coating, thereby realizing the control of the thickness of the glue coating on the rubber roller and making the glue coating more uniform. The rolling spline pair can be driven to rotate by the rotating cylinder, and the rolling spline pair can then drive the spline shaft to rotate, and the spline shaft can then drive the rubber roller frame and the rubber roller to rotate, thereby realizing the change of the direction of the rubber roller. The present invention not only realizes the rotation of the rubber roller in the horizontal direction, but also realizes the floating of the rubber roller in the vertical direction. The downward pressure of the rubber roller can be controlled, thereby improving the uniformity of the glue coating on the workpiece to be coated with glue. Description of the drawings:

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the glue coating roller of the present invention.

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the glue coating roller of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the glue coating equipment of the present invention.

[0020] In the figure, 1, rubber roller, 2, bearing, 3, rubber roller shaft, 4, rubber roller frame, 5, spline shaft, 6, rolling spline pair, 7, rotating cylinder, 8, rotating sleeve, 9, spring guide rod, 10, mounting seat, 11, pressure sensor, 12, spring stop table, 13, spring, 14, elastic pin, 15, long hole, 16, limiting boss, 17, frame, 18, X-axis motion pair, 19, Y-axis motion pair, 20, Z-axis motion pair, 21, rotating glue roller, 22, conveyor line, 24, workpiece to be glued, 25, take-up roller, 26, unwinding roller, 27, support roller, 28, tape, 29, mixed rubber board, 31, spreading plate. Specific implementation method:

[0021] In order to clearly illustrate the technical features of the present solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0022] like Figure 1-3 As shown, a floating rotary rubber coating roller comprises a rubber roller 1, wherein the rubber roller 1 is rotatably mounted on a rubber roller shaft 3 through a bearing 2, and both ends of the rubber roller shaft 3 are mounted on a rubber roller frame 4, and the middle part of the rubber roller frame 4 is connected to the bottom of a spline shaft 5, and the spline shaft 5 is movably mounted in a rolling spline pair 6, and the rolling spline pair 6 is connected to a rotating sleeve 8 of a rotating cylinder 7 through a screw, and the top of the spline shaft 5 is connected to a spring guide rod 9 movably mounted in the rotating cylinder 7, and the top of the rotating cylinder 7 is connected to a mounting seat 10, and a pressure sensor 11 is arranged in the mounting seat 10, and the top of the spring guide rod 9 passes through the rotating cylinder 7 and the mounting seat 10 upward to extend into the pressure sensor 11, and a spring stop 12 is arranged on the side wall of the spring guide rod 9, and a spring 13 is arranged between the spring stop 12 and the pressure sensor 11, and the pressure of the rubber roller 1 after being compressed is transmitted to the pressure sensor 11 through the spline shaft 5, the spring guide rod 9 and the spring 13, so as to control the pressure of the rubber roller 1, thereby controlling the thickness of the glue coating on the rubber roller 1.

[0023] Elastic pins 14 matching with the rubber roller shaft 3 are installed at the positions above the rubber roller shaft 3 at both ends of the rubber roller frame 4, and a long hole 15 for the rubber roller shaft 3 to float up and down is provided in the rubber roller frame 4. The rubber roller shaft 3 is provided with an elastic retaining ring for limiting at the position located outside the rubber roller frame 4. With this design, the height of both ends of the rubber roller shaft 3 can be self-adjusted according to the height of the workpiece 24 to be coated with glue. If the workpiece 24 to be coated with glue is tilted, the rubber roller shaft 3 can also be tilted accordingly to ensure the uniformity of the rubber roller coating.

[0024] A limiting boss 16 is provided at the position where the spring guide rod 9 is connected to the spline shaft 5, which limits the components below and prevents them from falling in a free state.

[0025] A gluing device with a floating rotary glue coating roller comprises a frame 17, on which an X-axis kinematic pair 18, a Y-axis kinematic pair 19 and a Z-axis kinematic pair 20 are mounted, a rotary glue coating roller 21 is mounted on the Z-axis kinematic pair 20, a conveyor line 22 is provided below the rotary glue coating roller 21, a workpiece 24 to be glued is placed on the conveyor line 22, a tape assembly is mounted on the frame 17 on one side of the conveyor line 22, and a mixing plate 29 and a plurality of spreading plates 31 are mounted in sequence from far to near on the frame 17 on the other side of the conveyor line 22.

[0026] The adhesive tape assembly includes a take-up roller 25 and a take-out roller 26 installed on the frame 17. Two support rollers 27 are arranged between the take-up roller 25 and the take-out roller 26 for supporting the adhesive tape 28 to be flat. The adhesive tape 28 is arranged with the adhesive surface facing upward. The X-axis motion pair 18, the Y-axis motion pair 19 and the Z-axis motion pair 20 drive the rotating glue coating roller 21 to reciprocate along the Y-axis direction on the adhesive tape 28 for multiple times, so as to clean the excess glue on the rotating glue coating roller 21 and thoroughly clean the glue roller for the next use of glue coating.

[0027] The mixing plate 29 is used to mix the glue evenly. The X-axis motion pair 18, the Y-axis motion pair 19 and the Z-axis motion pair 20 drive the rotating glue coating roller 21 to reciprocate multiple times along the X-axis direction and the Y-axis direction on the mixing plate 29 to mix the glue evenly and adhere it to the rotating glue coating roller 21.

[0028] The number of the spreading plates 31 can be multiple, and the spreading plates 31 are used to flatten and thin the glue on the rotating glue coating roller 21. The X-axis motion pair 18, the Y-axis motion pair 19 and the Z-axis motion pair 20 drive the rotating glue coating roller 21 to reciprocate along the Y-axis direction on the spreading plate 31 for multiple times, so that a part of the glue remains on the rotating glue coating roller 21 to meet the specified glue coating amount requirement, and the other part of the glue remains on the spreading plate 31.

[0029] The bottoms of the mixing plate 29 and the spreading plate 31 are both provided with heating devices, which can be heated to prevent the glue from solidifying when the temperature is too low.

[0030] The X-axis motion pair 18 , the Y-axis motion pair 19 and the Z-axis motion pair 20 drive the rotating glue coating roller 21 to move once along the Y-axis direction on the workpiece 24 to be coated with glue, and evenly coat the glue on the workpiece 24 to be coated with glue.

[0031] Working principle:

[0032] During operation, the rotating glue coating roller 21 is driven to move in the X-axis direction, the Y-axis direction and the Z-axis direction through the X-axis motion pair 18, the Y-axis motion pair 19 and the Z-axis motion pair 20. The rotating glue coating roller 21 is first driven to reciprocate along the X-axis direction and the Y-axis direction on the glue mixing plate 29 for multiple times to mix the glue evenly and adhere it to the rotating glue coating roller 21. Then, the rotating glue coating roller 21 is driven to reciprocate along the Y-axis direction on multiple spreading plates 31 for multiple times, so that a part of the glue remains on the rotating glue coating roller 21 to be flattened and thinned, and the other part of the glue remains on the spreading plate 31. At this time, the glue on the rotating glue coating roller 21 meets the gluing conditions, and then the rotating glue coating roller 21 is driven to move once along the Y-axis direction on the workpiece 24 to be glued. During this process, when the Z-axis motion pair 20 drives the glue roller 1 to descend, the glue roller 1 contacts the workpiece 24 to be glued downward. The pressure of the workpiece 24 after being compressed can be transmitted to the pressure sensor 11 through the spline shaft 5, the spring guide rod 9 and the spring 13 in sequence. The pressure sensor 11 sends a signal to the controller. The controller can control the action of the Z-axis motion pair 20 to keep the pressure of the rubber roller 1 within the set range, thereby controlling the thickness of the glue applied by the rubber roller 1, and evenly applying the glue on the workpiece 24 to be coated with glue. After the glue coating is completed, the conveyor line 22 drives the workpiece 24 to be coated with glue to be conveyed backwards, and the staff then places the new workpiece to be coated with glue on the conveyor line, while the X-axis motion pair 18, the Y-axis motion pair 19 and the Z-axis motion pair 20 drive the rotating glue roller 21 to reciprocate along the Y-axis direction on the tape 28 for multiple times, which is used to clean the excess glue on the rotating glue roller 21 and thoroughly clean the rubber roller for the next glue coating. Repeat the above actions to continuously coat the workpiece to be coated with glue.

[0033] The above specific implementation manner cannot be used as a limitation on the protection scope of the present invention. For those skilled in the art, any substitution, improvement or change made to the implementation manner of the present invention falls within the protection scope of the present invention.

[0034] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A floating rotary glue coating roller, characterized in that: The invention comprises a rubber roller, which is rotatably mounted on a rubber roller shaft through a bearing, two ends of the rubber roller shaft are mounted on a rubber roller frame, a middle portion of the rubber roller frame is connected to the bottom of a spline shaft, the spline shaft is movably mounted up and down in a rolling spline pair, the rolling spline pair is connected to a rotating sleeve of a rotating cylinder through a screw, the top of the spline shaft is connected to a spring guide rod movably mounted up and down in the rotating cylinder, the top of the rotating cylinder is connected to a mounting seat, a pressure sensor is arranged in the mounting seat, the top of the spring guide rod passes upward through the rotating cylinder and the mounting seat and extends into the pressure sensor, a spring stop is arranged on a side wall of the spring guide rod, a spring is arranged between the spring stop and the pressure sensor, the pressure of the rubber roller after being compressed is transmitted to the pressure sensor through the spline shaft, the spring guide rod and the spring, the pressure of the rubber roller is controlled, and thus the thickness of the glue coating on the rubber roller is controlled.

2. A floating rotary glue coating roller according to claim 1, characterized in that: Elastic pins matching the rubber roller shaft are installed at the positions above the rubber roller shaft at both ends of the rubber roller frame, a long hole is provided in the rubber roller frame for the rubber roller shaft to float up and down, and an elastic retaining ring is provided at the position of the rubber roller shaft outside the rubber roller frame for limiting.

3. The floating rotary glue coating roller according to claim 1, characterized in that: A limiting boss is provided at the position where the spring guide rod is connected to the spline shaft.

4. A gluing device with a floating rotating gluing roller as claimed in claim 1, characterized in that: It includes a frame, on which an X-axis motion pair, a Y-axis motion pair and a Z-axis motion pair are installed, a rotating glue coating roller is installed on the Z-axis motion pair, a conveyor line is provided below the rotating glue coating roller, workpieces to be glued are placed on the conveyor line, a belt assembly is installed on the frame on one side of the conveyor line, and a mixing plate and a plurality of spreading plates are installed in sequence from far to near on the frame on the other side of the conveyor line.

5. The gluing device of the floating rotating gluing roller according to claim 4 is characterized in that: The tape assembly includes a take-up roller and a pay-out roller installed on a frame, two support rollers are arranged between the take-up roller and the pay-out roller, and are used to support the tape flat, with the adhesive surface of the tape facing upwards, and the X-axis motion pair, the Y-axis motion pair and the Z-axis motion pair drive the rotating glue coating roller to reciprocate on the tape along the Y-axis direction for multiple times, and are used to clean up excess glue on the rotating glue coating roller.

6. The gluing device of the floating rotating gluing roller according to claim 4 is characterized in that: The rubber mixing plate is used to mix the rubber evenly, and the X-axis motion pair, the Y-axis motion pair and the Z-axis motion pair drive the rotating rubber coating roller to reciprocate multiple times along the X-axis direction and the Y-axis direction on the rubber mixing plate to mix the rubber evenly and adhere it to the rotating rubber coating roller.

7. The gluing device of the floating rotating gluing roller according to claim 4 is characterized in that: The spreading plate is used to flatten and thin the glue on the rotating glue coating roller. The X-axis motion pair, the Y-axis motion pair and the Z-axis motion pair drive the rotating glue coating roller to reciprocate along the Y-axis direction on the spreading plate for multiple times, so that part of the glue remains on the rotating glue coating roller and the other part of the glue remains on the spreading plate.

8. The gluing device of the floating rotating gluing roller according to claim 4 is characterized in that: The bottoms of the rubber mixing plate and the spreading plate are both provided with heating devices.

9. The gluing device of the floating rotating gluing roller according to claim 4 is characterized in that: The X-axis motion pair, the Y-axis motion pair and the Z-axis motion pair drive the rotating glue coating roller to move once along the Y-axis direction on the workpiece to be coated with glue, so as to evenly coat the glue on the workpiece to be coated with glue.

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