Automatic glue brushing device for inner wall of cylinder

Abstract

The utility model discloses an automatic glue brushing device for the inner wall of a barrel. The automatic glue brushing device comprises a bottom plate, a shell rotation module and an automatic glue brushing module. The shell rotation module and the automatic glue brushing module are fixed to the left side and the right side of the upper surface of the bottom plate. The shell rotation module is sleeved with the to-be-brushed barrel, and the shell rotation module rotates to drive the to-be-brushed barrel to rotate. The automatic glue brushing module is provided with a glue spraying pipe and a rolling brush, the glue spraying pipe sprays out glue, and the rolling brush brushes the glue on the inner wall of the barrel. And after the inner wall of the barrel is in contact with the rolling brush, the friction force between the inner wall of the barrel and the surface of the rolling brush and the driving force of rotation of the barrel drive the rolling brush to rotate together, at the moment, the glue spraying pipe uniformly discharges glue, and the inner barrel wall glue brushing operation of the rocket shell is jointly completed.

Description

Technical Field

[0001] This utility model relates to an automatic glue-applying device for the inner wall of a cylinder, and is particularly suitable for automatic glue-applying to the inner wall of a solid rocket casing. Background Technology

[0002] The inner wall of a small solid rocket casing needs to be coated with a low-viscosity 730 adhesive to adhere the insulating layer and ultimately achieve thermal protection. Currently, the adhesive application process can only be completed manually. The specific workflow is as follows: the operator places the casing upside down on a flat surface, dips a straight brush into the 730 adhesive, inserts the brush into the inner wall of the casing, and applies the adhesive after contact with the inner wall. This method has the following drawbacks: the adhesive is poorly uniform on the inner wall of the casing, and because the casing has a blind-hole structure, adhesive tends to accumulate at the bottom of the holes to ensure that it can be applied to the bottom.

[0003] Chinese patent CN217165076U discloses an automatic glue application mechanism for Hall effect panels, including machining, a glue storage box, a transmission track, a translation module, and a lifting module. The glue storage box contains a drip tray with several holes, and the glue application components include several brushes and fixing blocks. This mechanism primarily uses the drip tray for glue storage, and the drip tray has a square structure. Chinese patent CN201720904673.9 discloses an automatic glue application device, which uses a worktable with a glue brush and guide device. Glue is connected to a glue brush head via a delivery air pipe, and the glue brush head is mechanically driven to apply glue via a balanced worktable. This invention relies on mechanical drive for brush head operation.

[0004] In the field of pyrotechnics production, the application of adhesive to the inner wall of solid rocket casings requires no missed areas and a uniform application rate. While manual operation can ensure no missed areas, it cannot guarantee the uniformity of the adhesive application. Furthermore, it suffers from low processing efficiency, poor quality consistency, and low reliability. In recent years, solid rocket pyrotechnics have been produced in large batches and under heavy workloads, and existing technologies cannot meet the production demands of solid rocket casing pyrotechnic components. Utility Model Content

[0005] The technical problem solved by this utility model is to overcome the shortcomings of the prior art and propose an automatic glue application device for the inner wall of a cylinder. Through the structural design of the shell rotation module and the automatic glue application module, the cylinder rotation, uniform glue dispensing, and automatic glue application are realized.

[0006] The technical solution of this utility model is:

[0007] An automatic glue-applying device for the inner wall of a cylinder includes a base plate, a shell rotation module, and an automatic glue-applying module.

[0008] The shell rotation module and the automatic glue application module are fixed on the left and right sides of the upper surface of the base plate;

[0009] The shell rotation module includes a left rotating cylinder, a right rotating cylinder, a left stepper motor, a transmission assembly, a left mounting plate, and a right mounting plate. Both the left and right mounting plates are L-shaped structures, with their bottom surfaces fixed to a base plate and their uprights placed opposite each other. The transmission assembly is fixed to the inner side of the upright of the left mounting plate. The rotating gear of the left stepper motor is connected to the input end of the transmission assembly, and the output end of the transmission assembly is connected to the left and right rotating cylinders respectively. The left and right rotating cylinders are placed horizontally, with one end fixed to the outer side of the upright of the left mounting plate and the other end fixed to the outer side of the upright of the right mounting plate. The cylinder to be coated with glue is fitted over the left and right rotating cylinders.

[0010] The automatic glue application module is equipped with a glue spraying tube and a roller brush. The glue spraying tube sprays out glue, and the roller brush applies the glue to the inner wall of the cylinder.

[0011] Furthermore, the transmission assembly includes a first pulley, a second pulley, a third pulley, a fourth pulley, a fifth pulley, and a belt;

[0012] The No. 1 pulley, No. 2 pulley, No. 5 pulley, No. 4 pulley, and No. 3 pulley are fixed on the inner side of the vertical plate of the left mounting plate, and the pulleys are connected in sequence by the tension generated by the belt.

[0013] The first pulley is connected to the output shaft of the left stepper motor;

[0014] The vertical plate of the left mounting plate has two symmetrical through holes in the horizontal direction. The center holes of pulley No. 4 and pulley No. 5 are located at the two through holes and are respectively interference-fitted with the ends of the left and right rotating cylinders.

[0015] Furthermore, the automatic glue application module includes a horizontal lead screw motor, a horizontal lead screw, a vertical lead screw motor, a vertical lead screw, a first connecting rod, a worm gear motor assembly, a second connecting rod, a roller brush, double connecting rods, a connecting plate, and a glue dispensing assembly;

[0016] The output shaft of the horizontal lead screw motor is connected to one end of the horizontal lead screw, and the other end of the horizontal lead screw is connected to the worm gear motor assembly.

[0017] The output shaft of the vertical lead screw motor is connected to one end of the vertical lead screw, and the other end of the vertical lead screw is connected to the connecting plate;

[0018] The dispensing assembly and the roller brush are placed side by side with their ends aligned, and the dispensing port of the dispensing assembly is in close contact with the roller brush; the surface of the roller brush is covered with hair-like fibers, which are in contact with the inner wall of the cylinder.

[0019] The worm gear motor assembly is connected to the roller brush via the second connecting rod;

[0020] One end of the first connecting rod is inserted into the connecting plate and tightened with bolts, and the other end is connected to the worm gear motor assembly.

[0021] Furthermore, the worm gear motor assembly includes a housing and a motor. The housing is connected to the first connecting rod, the glue dispensing assembly, and the horizontal lead screw, respectively, and the motor is connected to the second connecting rod.

[0022] Furthermore, the glue dispensing assembly includes a glue spraying hose, an air adapter, a glue spraying hose connector, an air pipe, and an air valve;

[0023] The glue spraying tube is inserted into the glue spraying tube connecting block, the glue spraying tube connecting block is connected to the double connecting rod, and the other end of the double connecting rod is connected to the worm gear motor assembly.

[0024] One end of the air adapter is connected to the glue spraying hose, and the other end is connected to the air hose. The air hose contains glue and is equipped with an air valve.

[0025] Furthermore, the horizontal lead screw motor controls the automatic glue application module to move in the horizontal direction, and the vertical lead screw motor controls the automatic glue application module to move in the vertical direction.

[0026] Furthermore, the left stepper motor drives the left and right rotating cylinders to rotate in the same direction and at the same speed.

[0027] The advantages of this utility model compared with the prior art are as follows:

[0028] (1) The present invention uses the shell rotation module and the automatic glue application module to complete the rotation of the cylinder and the automatic feeding of the glue application module respectively. When the inner wall of the cylinder comes into contact with the roller brush, under the action of the friction between the inner wall of the cylinder and the surface of the roller brush, the driving force of the cylinder rotation drives the roller brush to rotate together. At this time, the glue spraying pipe dispenses glue evenly, and together completes the glue application operation of the inner wall of the rocket shell.

[0029] (2) The present invention utilizes the tension of the belt and the driving force provided by the stepper motor to drive the two rotating cylinders to rotate in the same direction through the transmission of five connecting wheels, thereby completing the cylinder rotation operation.

[0030] (3) The horizontal lead screw motor and the vertical lead screw motor designed in this invention provide displacement driving force in the X direction and Z direction respectively, and provide displacement direction through the horizontal lead screw and the vertical lead screw, thereby driving the glue spraying tube and the roller brush to complete the displacement in the X direction and Z direction, so as to adapt to rocket shells of different lengths and different diameters and complete the automatic glue application process. Attached Figure Description

[0031] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0032] Figure 1 This is a schematic diagram of the automatic glue application device according to an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram showing the positions of the left and right rotating cylinders in an embodiment of this utility model.

[0034] Figure 3 This is a schematic diagram of the transmission assembly of the housing rotation module in an embodiment of this utility model;

[0035] Figure 4 This is a schematic diagram of the automatic glue application module according to an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram showing the positions of the adhesive sprayer and roller in an embodiment of this utility model;

[0037] Figure 6 This is a schematic diagram of the installation of the glue spray tube and connecting block according to an embodiment of the present utility model. Detailed Implementation

[0038] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0039] This utility model proposes an automatic glue-applying device for the inner wall of a cylinder, such as... Figure 1 As shown, it includes a base plate 1, a shell rotation module, a left mounting plate 4, a middle mounting plate 5, a right mounting plate 6, a small base plate 14, and an automatic glue application module.

[0040] The shell rotation module includes a left rotating cylinder 2, a right rotating cylinder 3, a left stepper motor 7, and a transmission assembly, such as... Figure 2 As shown. The transmission assembly includes pulley 8, pulley 9, pulley 10, pulley 11, pulley 12, and belt 13. In the housing rotation module, the rotating gear of the left stepper motor 7 is connected to the pulleys, and the pulleys are interconnected by the tension generated by the belt. The center holes of pulleys 11 and 12 are respectively interference-fitted with the portions extending from the left rotating cylinder 2 and the right rotating cylinder 3, as shown. Figure 3 As shown.

[0041] In the housing rotation module, the left stepper motor 7 provides the power source, which can drive 5 pulleys. The power transmission between the pulleys is through the tension and friction of the belt 13, and finally the power is transmitted to the fourth pulley 11 and the fifth pulley 12. The two pulleys transmit the rotation power to the left rotating cylinder 2 and the right rotating cylinder 3, so that the two cylinders maintain the same rotation direction and rotation speed, thereby driving the product to rotate.

[0042] The automatic glue application module includes a horizontal lead screw motor 15, a horizontal lead screw 16, a vertical lead screw motor 17, a vertical lead screw 18, a first connecting rod 19, a worm gear motor 20, a worm gear motor housing 21, a second connecting rod 22, a glue spraying hose 23, a roller brush 24, an air adapter 25, double connecting rods 26, and a glue spraying hose connecting block 27. Figure 4 As shown. The horizontal lead screw 16 is threaded to the small base plate 14, and the vertical lead screw 18 is threaded to the connecting plate. The first connecting rod 19 passes through the protruding part of the connecting plate and is tightened with bolts to achieve a tight connection. The outer casing 21 is threaded to the double connecting rods 26, as shown. Figure 5 As shown, the outer casing 21 houses a worm gear motor 20. The worm gear motor 20 is threadedly connected to the second connecting rod 22. The second connecting rod 22 is threadedly connected to the roller brush 24. The glue spraying tube 23 is inserted into the glue spraying tube connecting block 27 and threadedly connected. The glue spraying tube 23 is threadedly connected to the air adapter 25. Figure 6 As shown, the glue spray tube connecting block 27 is connected to the double connecting rod 26 by four bolts, and the double connecting rod 26 is connected to the worm gear motor housing 21 by threads.

[0043] In the automatic glue application module, power is generated by a horizontal lead screw motor 15 and a vertical lead screw motor 17, which transmit the power to the horizontal lead screw 16 and the vertical lead screw 18, respectively, thereby driving the entire automatic glue application module to move in the X and Z directions. One end of the air adapter 25 is connected to the glue spraying tube 23, and the other end is connected to the air pipe, which stores the glue liquid. The glue outlet of the glue spraying tube 23 is in close contact with the roller brush 24. The surface of the roller brush 24 is arranged with hair-like fibers. Because these fibers are relatively rough, they can generate friction with the inner wall of the product cylinder. This friction can transmit the rotation driving force output by the left stepper motor 7 through the inner wall of the product cylinder to the roller brush 24, thereby ensuring that the rotation speed of the roller brush 24 is consistent with that of the inner wall of the product cylinder. At the same time, the fiber structure can effectively absorb the sprayed glue liquid and play a storage role. Until it comes into contact with the inner wall of the housing and is squeezed, the glue liquid can be evenly squeezed onto the inner wall of the housing.

[0044] When the device is started, the vertical lead screw motor 17 and the horizontal lead screw motor 15 first control the vertical lead screw 18 and the horizontal lead screw 16 to move in the positive Z-axis and positive X-axis directions respectively. When they reach their positions, their signals are transmitted to the automatic glue application module. The automatic glue application module then opens the vent valve to transport the glue stored in the air pipe to the glue spraying pipe 23. The glue spraying pipe 23 dispenses glue evenly. The glue is absorbed by the hair-like fibers on the surface of the roller brush 24 and applied to the inner wall of the housing. At the same time, the horizontal lead screw motor 15 controls the automatic glue application module to move in the opposite X-axis direction. Under the rotation of the housing, the glue is evenly applied to all parts of the inner wall of the housing until the roller brush 24 reaches the edge of the inner wall of the housing. The horizontal lead screw 16 stops moving. At the same time, the vertical lead screw motor 17 controls the automatic glue application module to move in the opposite Z-axis direction, taking the automatic glue application module away from the inner wall of the housing. At this time, the roller brush 25 loses contact with the inner wall of the product and its rotation stops. The automatic glue application process on the inner wall of the housing ends here.

[0045] The above-described embodiments are merely preferred embodiments of this utility model. Ordinary variations and substitutions made by those skilled in the art within the scope of this utility model's technical solution should be included within the protection scope of this utility model.

Claims

1. An automatic glue brushing device for the inner wall of a cylinder, characterized in that, Including the bottom plate, the shell self-rotation module and the automatic glue brushing module; The shell self-rotation module and the automatic glue brushing module are fixed on the left and right sides of the upper surface of the bottom plate; The shell self-rotation module comprises a left self-rotation cylinder, a right self-rotation cylinder, a left stepping motor, a transmission assembly, a left mounting plate and a right mounting plate; the left mounting plate and the right mounting plate are both L-shaped structures, the bottom surface is fixed on the bottom plate, and the vertical plate is placed oppositely; the transmission assembly is fixed on the inner side surface of the vertical plate of the left mounting plate, the rotating gear of the left stepping motor is connected with the input end of the transmission assembly, and the output end of the transmission assembly is connected with the left self-rotation cylinder and the right self-rotation cylinder respectively; the left self-rotation cylinder and the right self-rotation cylinder are placed horizontally, one end of each is fixed on the outer side surface of the vertical plate of the left mounting plate, and the other end of each is fixed on the outer side surface of the vertical plate of the right mounting plate, and the glue brushing cylinder is sleeved outside the left self-rotation cylinder and the right self-rotation cylinder; The automatic glue brushing module is provided with a glue spraying pipe and a rolling brush, the glue spraying pipe sprays glue liquid, and the rolling brush brushes the glue liquid on the inner wall of the cylinder.

2. The automatic glue brushing device for the inner wall of the cylinder according to claim 1, characterized in that, The transmission assembly comprises a No. 1 belt pulley, a No. 2 belt pulley, a No. 3 belt pulley, a No. 4 belt pulley, a No. 5 belt pulley and a belt; The No. 1 belt pulley, the No. 2 belt pulley, the No. 5 belt pulley, the No. 4 belt pulley and the No. 3 belt pulley are fixed on the inner side of the vertical plate of the left mounting plate, and the above belt pulleys are sequentially connected through the tension of the belt; The No. 1 belt pulley is connected with the output shaft of the left stepping motor; The vertical plate of the left mounting plate is provided with two symmetrical through holes in the horizontal direction, the center hole of the No. 4 belt pulley and the center hole of the No. 5 belt pulley are located at the positions of the two through holes and are in interference fit with the end of the left self-rotation cylinder and the end of the right self-rotation cylinder respectively.

3. The automatic glue brushing device for the inner wall of the cylinder according to claim 1, characterized in that, The automatic glue brushing module comprises a horizontal lead screw motor, a horizontal lead screw, a vertical lead screw motor, a vertical lead screw, a No. 1 connecting rod, a worm gear motor assembly, a No. 2 connecting rod, a rolling brush, a double connecting rod, a connecting plate and a glue outlet assembly; The output shaft of the horizontal lead screw motor is connected with one end of the horizontal lead screw, and the other end of the horizontal lead screw is connected with the worm gear motor assembly; The output shaft of the vertical lead screw motor is connected with one end of the vertical lead screw, and the other end of the vertical lead screw is connected with the connecting plate; The glue outlet assembly and the rolling brush are placed side by side and in alignment, the glue outlet of the glue outlet assembly is in close contact with the rolling brush; the surface of the rolling brush is provided with a plurality of hair-like fibers, and the hair-like fibers are in contact with the inner wall of the cylinder; The worm gear motor assembly is connected with the rolling brush through the No. 2 connecting rod; One end of the No. 1 connecting rod penetrates into the connecting plate and is fastened by a bolt, and the other end is connected with the worm gear motor assembly.

4. The automatic glue brushing device for the inner wall of the cylinder according to claim 3, characterized in that, The worm gear motor assembly comprises a housing and a motor, the housing is connected with the No. 1 connecting rod, the glue outlet assembly and the horizontal lead screw respectively, and the motor is connected with the No. 2 connecting rod.

5. The automatic glue brushing device for the inner wall of the cylinder according to claim 3, characterized in that, The glue outlet assembly comprises a glue spraying pipe, a gas connector, a glue spraying pipe connecting block, an air pipe and an air valve; The glue spraying pipe is inserted into the glue spraying pipe connecting block, the glue spraying pipe connecting block is connected with the double connecting rod, and the other end of the double connecting rod is connected with the worm gear motor assembly; One end of the gas connector is connected with the glue spraying pipe, and the other end is connected with the air pipe, the air pipe contains glue liquid, and the air pipe is provided with an air valve.

6. The automatic glue brushing device for the inner wall of the cylinder according to claim 3, characterized in that, The horizontal lead screw motor controls the movement of the automatic glue brushing module in the horizontal direction, and the vertical lead screw motor controls the movement of the automatic glue brushing module in the vertical direction.

7. The automatic glue brushing device for the inner wall of a cylinder according to claim 1, characterized in that, The left stepper motor drives the left self-rotating cylinder and the right self-rotating cylinder to rotate at the same speed in the same direction.

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