A pipe coating device

Abstract

The present application belongs to the technical field of winding packaging device, and particularly relates to a pipe film coating device, which comprises a winding drum driving device, a pipe conveying device, a rotary disc and a limiting device. The pipe conveying device comprises a first roller group, a supporting roller group and a second roller group arranged in sequence from left to right. The limiting device is arranged at the supporting roller group. The pipe is driven to move forward spirally through the second roller group. The rotary disc is arranged between the first roller group and the supporting roller group assembly. The winding drum driving device is arranged at one side of the rotary disc. The winding drum driving device is provided with a winding film roll. The winding film roll is in a horizontal or vertical state through the winding drum driving device, and is driven to move up and down. Through the arrangement of the pipe conveying device and the rotary disc, and the cooperation of the rotatable structure of the supporting frame in the winding drum driving device, the film coating operation of the pipe or similar objects in horizontal and vertical modes is completed on the same device.

Description

Technical Field

[0001] This invention belongs to the technical field of wrapping equipment, specifically relating to a pipe coating device. Background Technology

[0002] In industrial production, construction, and logistics, the surfaces of long profiles such as pipes and columnar components often require stretch film coating to achieve rust prevention, corrosion protection, scratch prevention, or marking. Traditional stretch film coating operations mostly rely on manual labor or single-function specialized equipment. For horizontally placed pipes, existing technology typically uses a method of driving the pipe spirally forward along its axis while a fixed-position film roll unwinds and winds it; this method is suitable for longer pipes. However, for pipe fittings with larger diameters and shorter lengths, or other rotating bodies, they often need to be placed vertically and rotated, with coating also achieved using a fixed film roll.

[0003] Horizontal lamination and vertical lamination often require two different sets of equipment, resulting in high equipment investment costs, large space requirements, and cumbersome conversion processes, which affect overall work efficiency. In the vertical lamination process, the loading and unloading of workpieces usually rely on external equipment such as forklifts, increasing the operational steps and coordination difficulties. Summary of the Invention

[0004] To address the aforementioned technical problems, the present invention provides a pipe coating device that can perform both horizontal and vertical wrapping operations.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A pipe coating device includes a roll drive, a pipe conveying device, a rotary table, and a limiting device;

[0007] The pipeline conveying device includes a first roller group, a support roller group, and a second roller group arranged sequentially from left to right; the limiting device is located at the support roller group; the pipeline is driven to move forward spirally through the second roller group.

[0008] The rotary table is located between the first roller group and the support roller group assembly; the roll drive device is located on one side of the rotary table; the roll drive device is equipped with a winding film roll, which is used to make the winding film roll horizontal or vertical and drive the winding film roll to move up and down.

[0009] The roll drive device includes a fixed column and a support frame. A slider is slidably connected to the fixed column, and a first drive mechanism connected to the slider is provided on the fixed column. The support frame is rotatably connected to the slider, and a second drive mechanism connected to the support frame is provided on the slider. The winding film is disposed on the support frame.

[0010] The first roller group includes a first base frame and a pushing mechanism. The pushing mechanism is connected to the first base frame and drives the first base frame to move left and right. A pair of parallel and inclined first slanted rollers are rotatably connected to the first base frame.

[0011] The first base frame is equipped with a lifting cylinder, which is connected to a fork arm.

[0012] The support roller assembly includes a base and support rollers, with a pair of parallel and inclined support rollers rotatably connected to the base.

[0013] The second roller group includes a second base frame and a drive motor. The drive motor is mounted on the second base frame, and a pair of parallel and inclined second slanted rollers are rotatably connected to the base frame. The two second slanted rollers are connected to the output shaft of the drive motor through gears.

[0014] The limiting device includes a limiting frame and a third driving mechanism. There are two limiting frames, which are staggered and slidably connected to the base. The two limiting frames are driven to move towards or away from each other by the third driving mechanism.

[0015] The limiting device also includes a pressure roller frame and a pressure roller. The pressure roller frame is slidably connected to the base; the pressure roller is rotatably connected to the pressure roller frame; and the limiting frame and the pressure roller frame are connected by a linkage component.

[0016] The linkage assembly includes a column, a guide pin, and a guide plate; the guide plate is fixedly connected to the pressure roller frame, the column is fixedly connected to the limiting frame, the guide pin is fixedly connected to the column, the guide pin is slidably connected to the guide plate, and the guide plate is provided with a corresponding inclined groove; the limiting frame is rotatably connected to a limiting wheel.

[0017] The support frame is provided with support columns that are inserted into the stretch film, and the two ends of the support frame are provided with opening slots that are connected to the support columns; the support frame is provided with positioning components.

[0018] The positioning assembly includes a guide rod, a bidirectional lead screw, and a pair of positioning blocks. The bidirectional lead screw is rotatably connected to the support frame; the pair of positioning blocks are slidably connected to the support frame, and the bidirectional lead screw and the positioning blocks are threadedly connected; a positioning plate is hinged to the positioning block, and the lower end of the positioning plate is provided with a groove that cooperates with the support column; the middle part of the guide rod is fixedly connected to the support frame, and the positioning plate is slidably connected to the guide rod.

[0019] Compared with the prior art, the beneficial effects of this invention are:

[0020] By setting up a pipe conveying device (for horizontal film coating) and a rotary table (for vertical film coating), and cooperating with the rotatable structure of the support frame in the roll drive device (which allows the film roll to be switched to horizontal or vertical states), it is possible to complete both horizontal and vertical film coating operations for pipes or similar objects on the same equipment.

[0021] In the pipeline conveying device, the first roller group, support roller group, and second roller group all adopt an inclined roller design. Combined with the drive of the second roller group, this effectively drives the pipeline to advance smoothly in a spiral. The limiting device automatically adjusts the distance between the two limiting frames according to the pipeline diameter and synchronously drives the pressure roller frame to rise and fall through a linkage component. This ensures effective and stable support and limiting for pipelines of different diameters, preventing pipeline displacement during the coating process and guaranteeing coating quality.

[0022] The positioning components on the support frame drive the positioning blocks to move synchronously in opposite directions or in opposite directions via a bidirectional lead screw, enabling the limiting and centering of winding film rolls of different widths. The lifting fork arm structure on the first roller group provides a feeding assistance function for vertical lamination mode, reducing reliance on external equipment such as forklifts and further improving operational efficiency and safety.

[0023] The first roller group can be adjusted in position by a pushing mechanism, which can provide front-end support when applying horizontal film and avoid the space of the turntable when applying vertical film. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention in one direction;

[0025] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0026] Figure 3 yes Figure 1 A magnified view of a section at point B in the middle;

[0027] Figure 4 yes Figure 1 A magnified view of a section at point C;

[0028] Figure 5 This is a schematic diagram of the structure from another direction of the present invention;

[0029] Figure 6 yes Figure 5 A magnified view of a section at point D;

[0030] Figure 7 This is a schematic diagram of the horizontal coating state of the present invention;

[0031] Wherein: 1 is the drum drive device, 10 is the fixed column, 11 is the support frame, 12 is the slider, 13 is the first drive mechanism, 14 is the second drive mechanism, 15 is the support column, 16 is the opening slot, 17 is the guide rod, 18 is the double-acting lead screw, 19 is the positioning block, 110 is the positioning plate, 111 is the groove, 2 is the pipeline conveying device, 3 is the rotary table, 4 is the limiting device, 40 is the limiting frame, 41 is the third drive mechanism, 410 is the drive rack, 411 is the drive gear, 412 is... Drive cylinder, 413 driven rack, 42 ​​pressure roller frame, 43 pressure roller, 44 column, 45 guide pin, 46 guide plate, 460 inclined groove, 47 limit wheel, 5 first roller group, 50 first base frame, 51 pushing mechanism, 52 first inclined roller, 53 lifting cylinder, 54 fork arm, 6 support roller group, 60 base, 61 support roller, 7 second roller group, 70 second base frame, 71 drive motor, 72 second inclined roller, 8 stretch film, 9 pipe. Detailed Implementation

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] like Figures 1 to 7 As shown, a pipe coating device includes a roller drive device 1, a pipe conveying device 2, a rotary table 3, and a limiting device 4. The roller drive device 1, the pipe conveying device 2, and the rotary table 3 are arranged on the ground.

[0034] The pipeline conveying device 2 includes a first roller group 5, a support roller group 6, and a second roller group 7 arranged sequentially from left to right; a limiting device 4 is installed at the support roller group 6; the second roller group 7 drives the pipeline 9 to move forward spirally, causing the winding film 8 on the roll drive device 1 to wrap and cover the pipeline 9. The pipeline conveying device 2 achieves the horizontal movement of the pipeline 9, thus realizing the horizontal film covering of the pipeline 9.

[0035] The rotary table 3 is positioned between the first roller group 5 and the support roller group 6. Pipes 9 with larger diameters and shorter lengths, or other objects to be covered, can be placed on the rotary table 3. The rotary table 3 drives the object to rotate, causing the wrapping film 8 to wrap and cover the vertically placed pipes 9 (or other objects), thus achieving vertical wrapping of the pipes 9.

[0036] The roll drive device 1 is located on one side of the rotary table 3; the roll drive device 1 is equipped with a roll of stretch film 8, which is used to make the roll of stretch film 8 horizontal or vertical and drive the roll of stretch film 8 to move up and down. That is, the purpose of the roll drive device 1 is to cooperate with the pipeline conveying device 2 and the rotary table 3 to horizontally or vertically cover the pipeline 9.

[0037] The drum drive device 1 includes a fixed column 10 and a support frame 11. A slider 12 is slidably connected to the fixed column 10, and a first drive mechanism 13 connected to the slider 12 is provided on the fixed column 10. Specifically, the first drive mechanism 13 can be a lead screw drive mechanism, in which the lead screw is rotatably connected to the fixed column 10 and connected to a motor, and the slider 12 is threadedly connected to the lead screw. The motor housing is fixedly connected to the fixed column 10, and the motor output shaft is fixedly connected to the lead screw. The slider 12 moves up and down by the motor driving the lead screw to rotate forward and backward.

[0038] The support frame 11 and the slider 12 are rotatably connected. The slider 12 is equipped with a second drive mechanism 14 connected to the support frame 11, which realizes the rotation of the support frame 11. The second drive mechanism 14 is specifically a geared motor. The housing of the geared motor is fixedly connected to the slider 12, and the output shaft of the geared motor passes through the fixed column 10 (which is provided with a corresponding through slot) and is fixedly connected to the support frame 11. The rotation of the output shaft of the geared motor drives the support frame 11 to rotate, and the wrapping film 8 is placed on the support frame 11.

[0039] When performing horizontal film coating, pipe 9 is placed on pipe conveying device 2; support frame 11 is rotated to a horizontal position by second drive mechanism 14; one end of stretch film 8 is manually pasted (by tape, etc.) onto pipe 9; then pipe 9 is driven to move forward spirally by second roller group 7, and as pipe 9 moves forward spirally, stretch film 8 will spirally wrap around pipe 9.

[0040] When performing vertical lamination, the pipe 9 is placed on the rotary table 3; the support frame 11 is rotated to a vertical position by the second drive mechanism 14; one end of the stretch film 8 is manually attached to the pipe 9 (using tape, etc.); then the rotary table 3 drives the pipe 9 to rotate, and as the pipe 9 rotates, the stretch film 8 is spirally wound around the pipe 9. According to the required length of the pipe 9, the support frame 11 and the stretch film 8 are driven to move up and down by the first drive mechanism 13.

[0041] Whether it is horizontal or vertical lamination, the wrapping film needs to be manually cut after lamination is completed.

[0042] Furthermore, the first roller group 5 includes a first base frame 50 and a pushing mechanism 51. The pushing mechanism 51 is connected to the first base frame 50 and drives the first base frame 50 to move left and right. A pair of parallel and inclined first inclined rollers 52 are rotatably connected to the first base frame 50, forming a certain angle with the pipe 9. Specifically, the pushing mechanism 51 can be a hydraulic cylinder, with both ends of the cylinder fixedly connected to the ground and the first base frame 50, respectively. The first base frame 50 can be slidably connected to the ground by setting a track, and the left and right movement of the first base frame 50 is achieved by extending and retracting the hydraulic cylinder.

[0043] During horizontal lamination, the piston rod of the hydraulic cylinder extends to push the first base frame 50 closer to the support roller group 6, thereby shortening the distance between them and supporting the front end of the pipe 9 when winding begins. During vertical lamination, the piston rod of the hydraulic cylinder retracts to pull the first base frame 50 away from the support roller group 6, avoiding obstruction of the rotation of the rotary table 3.

[0044] Furthermore, the first base frame 50 is equipped with a lifting cylinder 53, which is connected to a fork arm 54. The fork arm 54 moves up and down by extending and retracting the piston rod of the lifting cylinder 53. During vertical lamination, the pipe 9 is placed on a pallet and then transferred to the turntable 3 by a forklift. After vertical lamination is completed, the piston rod of the hydraulic cylinder extends, pushing the first base frame 50 closer to the turntable 3 until the fork arm 54 extends into the bottom of the pallet; then the lifting cylinder 53 drives the fork arm 54, the pallet, and the pipe 9 to move upward; finally, the piston rod of the hydraulic cylinder retracts, pulling the first base frame 50 back. This structure improves work efficiency, allowing the fork arm 54 to replace the forklift in operation.

[0045] Furthermore, the support roller group 6 includes a base 60 and support rollers 61. A pair of parallel and inclined support rollers 61 are rotatably connected to the base 60. The support rollers 61 mainly support the pipe 9, and their inclination angle is consistent with that of the first inclined roller 52.

[0046] Furthermore, the second roller group 7 includes a second base frame 70 and a drive motor 71. The drive motor 71 is mounted on the second base frame 70, and a pair of parallel and inclined second slanted rollers 72 are rotatably connected to the base frame. The two second slanted rollers 72 are connected to the output shaft of the drive motor 71 via gears. Specifically, there can be two drive motors 71, i.e., each of the two second slanted rollers 72 is connected to a drive motor 71; or there can be one drive motor 71, which drives the two second slanted rollers 72 to rotate. Regardless of whether there is one or two drive motors 71, gear transmission is used, i.e., meshing gears are provided on the output shaft of the drive motor 71 and on the second slanted rollers 72.

[0047] Similarly, the tilt angle of the second inclined roller 72 is the same as that of the first inclined roller 52; since there is an angle between it and the pipe 9, when the second inclined roller 72 rotates, it will drive the pipe 9 to move forward spirally from right to left.

[0048] Furthermore, the limiting device 4 includes a limiting frame 40 and a third driving mechanism 41. Two limiting frames 40 are provided, staggered and slidably connected to the base 60. Depending on the diameter of the pipe 9, the two limiting frames 40 are driven to move towards or away from each other via the third driving mechanism 41. The third driving mechanism 41 specifically includes a driving rack 410, a driving gear 411, a driving cylinder 412, and a driven rack 413. The driving gear 411 is a double-layer gear, rotatably connected to the base 60. The limiting frame 40 is fixedly connected to the driven rack 413, which meshes with the lower gear of the driving gear 411. The driving rack 410 is slidably connected to the base 60 and meshes with the upper gear of the driving gear 411. The two ends of the driving cylinder 412 are fixedly connected to the driving rack 410 and the base 60 respectively. The extension and retraction of the driving cylinder 412 enables the two limiting frames 40 to move towards or away from each other.

[0049] Furthermore, the limiting device 4 also includes a pressure roller frame 42 and a pressure roller 43. The pressure roller frame 42 is slidably connected to the base 60; the pressure roller 43 is rotatably connected to the pressure roller frame 42; the pressure roller 43 presses down on the pipe 9. The limiting frame 40 and the pressure roller frame 42 are connected by a linkage component; the two limiting frames 40 can move towards or away from each other, and the pressure roller frame 42 can move up and down through the linkage component.

[0050] Furthermore, the linkage assembly includes a column 44, a guide pin 45, and a guide plate 46; the guide plate 46 is fixedly connected to the pressure roller frame 42, the column 44 is fixedly connected to the limit frame 40, the guide pin 45 is fixedly connected to the column 44, and the guide pin 45 is slidably connected to the guide plate 46. The guide plate 46 is provided with a corresponding inclined groove 460. When the two limit frames 40 move towards or away from each other, they will drive the guide pin 45 to move along the inclined groove 460, and drive the pressure roller frame 42 to move up and down.

[0051] Furthermore, a limiting wheel 47 is rotatably connected to the limiting frame 40. The outer surface of the limiting wheel 47 contacts the pipe 9, which can prevent the limiting frame 40 from directly contacting the pipe 9 and causing scratches on the surface of the pipe 9.

[0052] Furthermore, the support frame 11 is provided with support columns 15 that are inserted into the stretch film 8. The support columns 15 have protrusions at both ends (to restrict the left and right movement of the support columns 15), and the support frame 11 has opening slots 16 at both ends that connect to the support columns 15. The support frame 11 is also provided with positioning components. These positioning components limit the movement of the support columns 15 and the stretch film 8, preventing the support columns 15 from moving out of the openings of the slots 16 and ensuring that the stretch film 8 is positioned in the middle of the support columns 15.

[0053] Furthermore, the positioning assembly includes a guide rod 17, a bidirectional lead screw 18, and a pair of positioning blocks 19. The bidirectional lead screw 18 is rotatably connected to the support frame 11; the pair of positioning blocks 19 are slidably connected to the support frame 11, and the bidirectional lead screw 18 and the positioning blocks 19 are threadedly connected. A handle is fixedly connected to one end of the bidirectional lead screw 18, and the two positioning blocks 19 can be moved towards or away from each other by manually holding the handle to drive the bidirectional lead screw 18 to rotate.

[0054] A positioning plate 110 is hinged to the positioning block 19. The lower end of the positioning plate 110 has a groove 111 that mates with the support column 15. The middle part of the guide rod 17 is fixedly connected to the support frame 11. The positioning plate 110 is slidably connected to the guide rod 17. The positioning plate 110 has corresponding through holes. When the positioning plate 110 is slidably connected to the guide rod 17, the positioning plate 110 cannot be rotated open.

[0055] When the stretch film 8 is used up and needs to be replaced, drive the bidirectional lead screw 18 to rotate, causing the two positioning blocks 19 to move in opposite directions until the positioning plate 110 disengages from the guide rod 17. At this time, the positioning plate 110 can be rotated open and will not block the support column 15, so that the support column 15 and the stretch film 8 can be removed from the support frame 11.

[0056] Insert the support column 15 into the new stretch film 8; then place the support column 15 into the opening slot 16 of the support frame 11; finally rotate the closing positioning plate 110 to drive the bidirectional lead screw 18 to rotate in the opposite direction, so that the two positioning blocks 19 move towards each other, and the positioning plate 110 is slidably connected with the guide rod 17 until there is a small gap between the positioning plate 110 and the side of the stretch film 8.

[0057] The distance between the positioning plates 110 can be changed depending on the length of the wrapping film 8; at the same time, since the two positioning blocks 19 and the positioning plates 110 move synchronously, the wrapping film 8 can be centered.

[0058] The above description only illustrates preferred embodiments of the present invention, but the present invention is not limited to the above embodiments.

Claims

1. A pipe coating device, characterized in that: It includes a drum drive device (1), a pipeline conveying device (2), a rotary table (3), and a limit device (4). The pipeline conveying device (2) includes a first roller group (5), a support roller group (6), and a second roller group (7) arranged sequentially from left to right; the limiting device (4) is located at the support roller group (6); the pipeline (9) is driven to move forward spirally through the second roller group (7); The rotary table (3) is located between the first roller group (5) and the support roller group (6); the roll drive device (1) is located on one side of the rotary table (3); the roll drive device (1) is provided with a winding film (8) roll, and the winding film (8) roll is made to be horizontal or vertical by the roll drive device (1), and the winding film (8) roll is driven to move up and down. The roll drive device (1) includes a fixed column (10) and a support frame (11). A slider (12) is slidably connected to the fixed column (10), and a first drive mechanism (13) connected to the slider (12) is provided on the fixed column (10). The support frame (11) is rotatably connected to the slider (12), and a second drive mechanism (14) connected to the support frame (11) is provided on the slider (12). The wrapping film (8) is disposed on the support frame (11). The first roller group (5) includes a first base frame (50) and a pushing mechanism (51). The pushing mechanism (51) is connected to the first base frame (50) and drives the first base frame (50) to move left and right. A pair of parallel and inclined first slant rollers (52) are rotatably connected to the first base frame (50). The support roller assembly (6) includes a base (60) and support rollers (61), and a pair of parallel and inclined support rollers (61) are rotatably connected to the base (60). The second roller group (7) includes a second base frame (70) and a drive motor (71). The drive motor (71) is mounted on the second base frame (70). A pair of parallel and inclined second rollers (72) are rotatably connected to the second base frame. The two second rollers (72) are connected to the output shaft of the drive motor (71) through gears.

2. The pipe coating device according to claim 1, characterized in that: The first base frame (50) is equipped with a lifting cylinder (53), and the lifting cylinder (53) is connected to a fork arm (54).

3. The pipe coating device according to claim 1, characterized in that: The limiting device (4) includes a limiting frame (40) and a third driving mechanism (41). There are two limiting frames (40), which are staggered and slidably connected to the base (60). The two limiting frames (40) are driven to move towards or away from each other by the third driving mechanism (41).

4. A pipe coating device according to claim 3, characterized in that: The limiting device (4) further includes a pressure roller frame (42) and a pressure roller (43). The pressure roller frame (42) is slidably connected to the base (60); the pressure roller (43) is rotatably connected to the pressure roller frame (42); and the limiting frame (40) and the pressure roller frame (42) are connected by a linkage component.

5. A pipe coating device according to claim 4, characterized in that: The linkage assembly includes a column (44), a guide pin (45), and a guide plate (46); the guide plate (46) is fixedly connected to the pressure roller frame (42), the column (44) is fixedly connected to the limiting frame (40), the guide pin (45) is fixedly connected to the column (44), the guide pin (45) is slidably connected to the guide plate (46), and the guide plate (46) is provided with a corresponding inclined groove (460); the limiting frame (40) is rotatably connected to a limiting wheel (47).

6. A pipe coating device according to claim 1, characterized in that: The support frame (11) is provided with a support column (15) that is inserted into the wrapping film (8), and the two ends of the support frame (11) are provided with opening slots (16) that are connected to the support column (15); the support frame (11) is provided with a positioning component.

7. A pipe coating device according to claim 6, characterized in that: The positioning assembly includes a guide rod (17), a two-way lead screw (18), and a pair of positioning blocks (19). The two-way lead screw (18) is rotatably connected to the support frame (11). The pair of positioning blocks (19) are slidably connected to the support frame (11), and the two-way lead screw (18) and the positioning blocks (19) are threadedly connected. A positioning plate (110) is hinged on the positioning block (19), and the lower end of the positioning plate (110) is provided with a groove (111) that cooperates with the support column (15). The middle part of the guide rod (17) is fixedly connected to the support frame (11), and the positioning plate (110) is slidably connected to the guide rod (17).

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