A multi-layer adhesive applicator for positioning round tubes

Abstract

This utility model relates to the field of adhesive applicator technology, and more particularly to an adhesive applicator for positioning and applying multiple layers of adhesive to round pipes. It includes a frame, a pipe conveying mechanism, a pipe rotating mechanism, an adhesive applicator, and an adhesive applicator drive mechanism. This utility model ensures accurate positioning of the pipe in the adhesive applicator area through the pipe conveying mechanism; the adhesive applicator station facilitates adhesive applicator application; the pipe rotating mechanism enables the pipe to be rotated circumferentially for adhesive applicator application, facilitating the application of multiple layers of adhesive tape along the pipe's axial direction, thus solving the traditional problem of difficulty in applying multiple layers of adhesive. Simultaneously, the adhesive applicator drive mechanism drives the adhesive applicator to move axially along the pipe, achieving axial control when applying multiple layers of adhesive tape. This, combined with the adhesive applicator's application operation, overcomes the problem of unstable application accuracy and quality, ultimately achieving the goal of positioning and applying multiple layers of adhesive tape to round pipes in a single, high-precision, and high-efficiency manner.

Description

Technical Field

[0001] This utility model relates to the field of adhesive applicator technology, and in particular to an adhesive applicator for positioning and applying multiple layers of adhesive to a round tube. Background Technology

[0002] In many industrial production processes, particularly in electronics, automotive, or medical devices, tubular parts (such as wire harnesses, air ducts, or support rods) often require multiple layers of tape or labels to be precisely applied to their surfaces for identification, insulation, fixation, or protection during subsequent assembly and functionalization.

[0003] Traditional adhesive application typically involves manual operation or simple automated equipment capable of applying only one layer of adhesive. During manual application, the curved surface of the tube and the strict axial positioning requirements between multiple layers of adhesive tape easily lead to problems such as tape skewing, uneven application, and inconsistent spacing, making it difficult to guarantee the accuracy and quality of the application. Especially when the tube is long and the number of adhesive layers is large, operators need to repeatedly adjust and measure, resulting in high workload and low production efficiency.

[0004] While existing single-pass automated adhesive applicators have solved the efficiency problem of single-pass circumferential adhesive application, they often lack the ability to achieve multi-pass axial positioning and precise spacing control. To complete multiple passes of adhesive application, multiple loading and unloading operations or complex tooling fixture switching are required, making the operation cumbersome.

[0005] Therefore, the industry urgently needs an automated device that can position and apply multiple tapes on round pipe fittings in a single, high-precision, and high-efficiency manner to meet the requirements of modern production for product quality and cycle time. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a multi-layer adhesive applicator for round pipes. A pipe conveying mechanism ensures accurate positioning of the pipe within the adhesive application area; the adhesive application station facilitates adhesive application; and a pipe rotation mechanism enables circumferential rotation of the pipe for application, facilitating the application of multiple layers of adhesive tape along the pipe's axial direction, thus solving the traditional problem of difficulty in applying multiple layers of adhesive. Simultaneously, an adhesive application drive mechanism drives the adhesive application mechanism to move axially along the pipe, achieving axial control during multi-layer tape application. This, combined with the adhesive application operation performed by the adhesive application mechanism, overcomes the problem of inconsistent application accuracy and quality, ultimately achieving the goal of positioning and applying multiple layers of adhesive tape to round pipes in a single, high-precision, and highly efficient manner.

[0007] To achieve the above objectives, this utility model provides a multi-layer adhesive applicator for positioning round tubes, comprising a frame, a tube conveying mechanism, a tube rotating mechanism, an adhesive applicator, and an adhesive applicator drive mechanism. One side of the frame is provided with an adhesive application station for applying adhesive to pipe fittings; The pipe fitting conveying mechanism is mounted on the frame and is used to convey pipe fittings to the adhesive application station; The pipe fitting rotation mechanism is located at the adhesive application station and is used to drive the pipe fitting to rotate along its own axial direction. The adhesive application mechanism is located above the pipe rotation mechanism and is used to apply adhesive to the surface of the pipe. The adhesive application drive mechanism is fixed to the frame and is used to drive the adhesive application mechanism to move axially along the pipe.

[0008] Preferably, the pipe conveying mechanism includes a conveying ramp and a limiting guide; The conveying ramp is located on one side of the frame and is inclined downward toward the adhesive application station; The limiting guide is disposed on the conveying ramp to restrict and / or guide the pipe fittings to be conveyed along the conveying ramp.

[0009] Preferably, the limiting guide includes an edge guide, an anti-jump guide plate, a stop block, and a stop driver; The edge guides are disposed on both sides of the edge of the conveying ramp and are used to guide the tube to roll along the conveying ramp. The anti-jump guide plate is disposed above the conveying inclined platform, and a conveying gap is formed between the anti-jump guide plate and the conveying inclined platform, allowing only one pipe to pass through at a time; The stop block is located on the side of the conveying ramp near the adhesive application station and is used to control the conveying of the pipe fittings. The stop driver is fixed to the frame and is used to drive the stop block to move closer to or away from the conveyor ramp.

[0010] Preferably, the conveying ramp is provided with an extension plate on the side near the pipe rotation mechanism; The extension plate is positioned above the pipe rotation mechanism to support the pipe as it rolls off the pipe rotation mechanism.

[0011] Preferably, the pipe rotation mechanism includes a fixed bracket, a movable bracket, a first roller, a second roller, a first rotation driver, a second rotation driver, and a push driver; The fixed bracket is fixed to the frame and located on one side of the adhesive application station; The first roller is rotatably mounted on the fixed bracket; The first rotary driver is fixed to the fixed bracket and is used to drive the first roller to rotate; The movable bracket is slidably mounted on the frame and located on the other side of the adhesive application station; The second roller is rotatably mounted on the movable bracket; The second rotation driver is fixed to the movable bracket and is used to drive the second roller to rotate; The drive driver is fixed to the frame and is used to drive the movable support to move closer to or away from the fixed support.

[0012] Preferably, the movable support is slidably equipped with a positioning sensor for obtaining the position of the pipe fitting.

[0013] Preferably, the adhesive applicator includes a lifting driver, a movable mounting plate, an adhesive tray, a guide wheel, an applicator head, and a pressing head; The lifting driver is fixed to the adhesive application driving mechanism and is used to drive the movable mounting plate to rise and fall; The solid adhesive tray is rotatably mounted on the movable mounting plate and is used to convey the adhesive belt; The guide roller is rotatably mounted on the movable mounting plate and is used to guide the conveyor belt. The adhesive applicator is located at one end of the movable mounting plate and is used to press the tape onto the surface of the pipe fitting, pull the tape to convey it, and cut the tape. The adhesive pressing head is located at the other end of the movable mounting plate and is used to roll the tape that has been applied to the surface of the pipe fitting.

[0014] Preferably, the adhesive applicator includes a cutter, an adhesive cutting actuator, an adhesive pulling box, and an adhesive applicator wheel; The cutter is movably mounted at the end of the movable mounting plate and is used to cut the tape; The tape-pulling box is positioned above the cutter and is used to pull the tape for conveying. The tape-cutting actuator is fixed to the movable mounting plate and is used to drive the cutter to move closer to or away from the tape-pulling box so that the tape comes into contact with the cutter and is cut. The adhesive roller is rotatably mounted on one side of the adhesive box to press the adhesive tape onto the surface of the pipe fitting.

[0015] Preferably, the adhesive box is provided with an adhesive guide groove, an adhesive tape patch, and an adhesive tape actuator; The adhesive guide groove is used to guide the adhesive tape to the adhesive application roller; The adhesive tape patch is used to adhere to the tape and pull the tape to move; The tape-pulling actuator is fixed to the movable mounting plate and is used to drive the tape patch to move along the adhesive guide groove to the adhesive roller.

[0016] Preferably, the pressing head includes a roller and a roller driver; The rolling roller is rotatably mounted on the rolling driver; The rolling driver is fixed to the movable mounting plate and is used to drive the rolling roller to roll the tape that has been attached to the surface of the pipe.

[0017] The beneficial effects of this invention are as follows: The pipe conveying mechanism ensures that the pipe can be accurately positioned in the adhesive application area; the adhesive application station facilitates adhesive application to the pipe; the pipe rotation mechanism enables the pipe to be flipped along the circumferential direction for adhesive application, facilitating the application of multiple layers of adhesive tape along the pipe's axial direction, thus solving the traditional problem of difficulty in applying multiple layers of adhesive. Simultaneously, the adhesive application drive mechanism drives the adhesive application mechanism to move along the pipe's axial direction, achieving axial control when applying multiple layers of adhesive tape. This, combined with the adhesive application operation performed by the adhesive application mechanism, overcomes the problem of unstable adhesive application accuracy and quality, ultimately achieving the goal of positioning and applying multiple layers of adhesive tape on round pipes in a single, high-precision, and high-efficiency manner. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the pipe fitting conveying mechanism of this utility model.

[0020] Figure 3 for Figure 1 A schematic diagram of the structure of part A.

[0021] Figure 4 This is a schematic diagram of the adhesive application mechanism of this utility model.

[0022] The reference numerals in the figures include: 1. Machine frame; 11. Adhesive application station; 2. Pipe fitting conveying mechanism; 21. Conveying ramp; 22. Limiting guide; 221. Edge guide; 222. Anti-jump guide plate; 223. Stop block; 224. Stop actuator; 23. Extension plate; 3. Pipe fitting rotation mechanism; 31. Fixed bracket; 32. Movable bracket; 33. First roller; 34. Second roller; 35. First rotation driver; 36. Second rotation driver; 37. Push driver; 38. Positioning sensor; 4. Adhesive application mechanism; 41. Lifting driver; 42. Movable mounting plate; 43. Adhesive tray; 44. Guide roller; 45. Application head; 451. Cutter; 452. Cutting actuator; 453. Adhesive box; 4531. Guide groove; 4532. Adhesive tape applicator; 4533. Adhesive tape actuator; 454. Application roller; 46. Pressure head; 461. Roller roller; 462. Roller driver; 5. Adhesive application drive mechanism. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings.

[0024] like Figures 1 to 4 As shown, this utility model discloses a multi-layer adhesive applicator for positioning round tubes, comprising a frame 1, a tube conveying mechanism 2, a tube rotating mechanism 3, an adhesive applicator 4, and an adhesive applicator driving mechanism 5. The adhesive applicator driving mechanism 5 is a linear drive module, a drive module consisting of a cylinder or stepper motor / servo motor cooperating with a guide rail / lead screw.

[0025] A glue-applying station 11 is provided on one side of the frame 1 for applying glue to pipe fittings; the glue-applying station 11 facilitates the application of glue to pipe fittings.

[0026] The pipe conveying mechanism 2 is set on the frame 1 and is used to convey the pipe to the adhesive application station 11 to ensure that the pipe can be accurately positioned in the adhesive application area.

[0027] The pipe fitting rotation mechanism 3 is set at the adhesive application station 11 to drive the pipe fitting to rotate along its own axis; to realize the pipe fitting to be flipped and applied adhesive in the circumferential direction, which makes it easy to apply multiple layers of adhesive tape along the pipe fitting axis.

[0028] The adhesive applicator 4 is located above the pipe rotation mechanism 3 and is used to apply adhesive to the surface of the pipe. The adhesive applicator 4 performs the adhesive application operation to attach the tape to the surface of the pipe.

[0029] The adhesive application drive mechanism 5 is fixed to the frame 1 and is used to drive the adhesive application mechanism 4 to move axially along the pipe. This enables the adhesive application mechanism 4 to achieve axial positioning and precise spacing control when applying multiple layers of adhesive tape.

[0030] The pipe rotation mechanism 3 enables the pipe to rotate circumferentially, and the adhesive application mechanism 4 is driven to move axially along the pipe by the adhesive application drive mechanism 5. This allows the equipment to complete the multi-position adhesive application on the surface of the pipe in one go with high precision, thereby solving the problems of unstable adhesive application quality and low production efficiency in the existing technology.

[0031] During operation, the pipe fittings to be coated are first received by the pipe fitting conveying mechanism 2 and then transported to the coating station 11. The coating station 11 serves as the work area, facilitating subsequent coating operations.

[0032] After the pipe reaches the adhesive application station 11, it is clamped and fixed by the rotating mechanism. The pipe rotation mechanism 3 is activated, causing the pipe to rotate along its own axis to reach the first adhesive tape bonding surface. This facilitates the circumferential flipping and adhesive application of the pipe.

[0033] The adhesive applicator 4, located above the pipe rotation mechanism 3, prepares the first layer of adhesive tape. The adhesive applicator drive mechanism 5 drives the adhesive applicator 4 to move axially along the pipe, and at the same time, the adhesive applicator 4 performs the adhesive applicator operation, attaching the first layer of adhesive tape to the first adhesive tape bonding surface, thus completing the application of the first layer of adhesive tape.

[0034] The adhesive application drive mechanism 5 drives the adhesive application mechanism 4 to reposition along the axial direction of the pipe fitting. At the same time, the pipe fitting rotation mechanism 3 restarts the pipe fitting rotation, causing the pipe fitting to rotate along its own axial direction to reach the second adhesive tape bonding surface.

[0035] The adhesive applicator 4 prepares the second layer of adhesive tape, and the adhesive applicator drive mechanism 5 drives the adhesive applicator 4 to move along the axial direction of the pipe fitting again. At the same time, the adhesive applicator 4 performs the adhesive applicator operation again, attaching the second layer of adhesive tape to the bonding surface of the second layer of adhesive tape, thus completing the application of the second layer of adhesive tape.

[0036] After the second layer of tape is applied, the pipe rotation mechanism 3 releases the pipe, which falls and moves out of the tape application station 11, waiting for the next pipe to enter.

[0037] like Figure 2 As shown, the pipe conveying mechanism 2 in this embodiment includes a conveying ramp 21 and a limiting guide 22; The conveying ramp 21 is set on one side of the frame 1 and tilted downward toward the adhesive application station 11; it uses gravity to realize the automatic and smooth conveying of the pipe fittings from the feeding side to the adhesive application station 11, thereby simplifying the conveying process and improving efficiency.

[0038] The limiting guide 22 is set on the conveying ramp 21 to limit and / or guide the pipe fittings to be conveyed along the conveying ramp 21. This ensures that the pipe fittings can move accurately along a predetermined trajectory during the sliding process under gravity, and that the pipe fittings are finally accurately positioned at the adhesive application station 11, avoiding deviation or misalignment of the pipe fittings during the conveying process.

[0039] With the cooperation of the conveying ramp 21 and the limiting guide 22, the pipe conveying mechanism 2 can efficiently and accurately complete the conveying and positioning of pipes, providing stable pipe preparation for subsequent high-precision adhesive application operations and solving the problem of inaccurate pipe positioning.

[0040] like Figure 2 As shown, the limiting guide 22 in this embodiment includes an edge guide 221, an anti-jump guide plate 222, a stop block 223, and a stop driver 224; wherein, the stop driver 224 can be a drive module that cooperates with a cylinder or a stepper motor / servo motor and a guide rail / lead screw.

[0041] Edge guides 221 are provided on both sides of the edge of the conveying ramp 21 to guide the pipe to roll along the conveying ramp 21 and prevent the pipe from deviating to the sides or leaving the conveying path during the conveying process.

[0042] The anti-jump guide plate 222 is set above the conveying inclined platform 21, and a conveying gap is formed between the anti-jump guide plate 222 and the conveying inclined platform 21, allowing only one pipe to pass through; the pipe can only be conveyed in a single layer, preventing the pipe from stacking or jumping, and ensuring the stability and single-piece nature of the conveying.

[0043] The stop block 223 is set on the side of the conveying ramp 21 near the adhesive application station 11 to control the conveying of the pipe fittings; to achieve precise blocking and positioning of the pipe fittings before they enter the adhesive application station 11.

[0044] The stop actuator 224 is fixed to the frame 1 and is used to drive the stop block 223 to move closer to or away from the conveyor ramp 21. When the stop actuator 224 drives the stop block 223 closer to the conveyor ramp 21, the pipe is stopped from being conveyed; when the stop actuator 224 drives the stop block 223 away from the conveyor ramp 21, the pipe is allowed to continue being conveyed. This achieves automated and programmed control of the pipe conveying, ensuring that the pipes are fed into the adhesive application station 11 in sequence and with precision.

[0045] The edge guide 221 and anti-jump guide plate 222 ensure the stability and single-piece nature of the conveying process. The stop block 223 and stop driver 224 work together to achieve precise stopping and programmed control of the pipe before the adhesive application station 11, which greatly improves the accuracy and automation of pipe conveying and provides a reliable guarantee for solving the problem of inaccurate pipe positioning.

[0046] like Figure 2 and Figure 3 As shown, in this embodiment, the conveying ramp 21 is provided with an extension plate 23 on the side near the pipe rotating mechanism 3; The extension plate 23 is positioned above the pipe fitting rotation mechanism 3 to support the pipe fitting as it rolls off the pipe fitting rotation mechanism 3.

[0047] The extension plate 23 acts as a bridge between the conveying mechanism and the rotating mechanism. By bearing and guiding the pipe to roll down, it ensures the stability and accuracy of the pipe's positioning when it enters the core component of the adhesive application station 11 - the pipe rotation mechanism 3, further improving the accuracy and reliability of the entire adhesive application process and achieving the goal of high-precision adhesive application.

[0048] like Figure 3 As shown, the pipe rotation mechanism 3 in this embodiment includes a fixed bracket 31, a movable bracket 32, a first roller 33, a second roller 34, a first rotation driver 35, a second rotation driver 36, and a push driver 37. The first rotation driver 35 and the second rotation driver 36 are both motors, and both motors are connected to the first roller 33 and the second roller 34 via transmission gear sets. The push driver 37 can be a cylinder or a drive module consisting of a stepper motor / servo motor and a guide rail / lead screw.

[0049] The fixed bracket 31 is fixed to the frame 1 and located on one side of the adhesive application station 11; The first roller 33 is rotatably mounted on the fixed bracket 31; The first rotary driver 35 is fixed to the fixed bracket 31 and is used to drive the first roller 33 to rotate. The movable bracket 32 ​​is slidably mounted on the frame 1 and located on the other side of the adhesive application station 11; The second roller 34 is rotatably mounted on the movable bracket 32; The second rotary driver 36 is fixed to the movable bracket 32 ​​and is used to drive the second roller 34 to rotate. The drive driver 37 is fixed to the frame 1 and is used to drive the movable bracket 32 ​​to move closer to or away from the fixed bracket 31.

[0050] The clamping structure composed of the fixed bracket 31 and the movable bracket 32, along with the push driver 37, enables automatic centering and stable clamping of pipes of different diameters. Furthermore, the dual drive system consisting of the first roller 33, the second roller 34, the first rotary driver 35, and the second rotary driver 36 ensures that the pipes can rotate smoothly and accurately along the axial direction, thereby achieving high-precision rotary adhesive application.

[0051] In use, the movable bracket 32 ​​is close to the fixed bracket 31, and the first roller 33 and the second roller 34 jointly support the pipe, so that the pipe is located at the adhesive application station 11. The first rotary driver 35 and the second rotary driver 36 work simultaneously, so that the first roller 33 and the second roller 34 rotate respectively, so that the pipe rotation mechanism 3 drives the pipe to rotate along its own axis, so that the pipe flips from the first adhesive tape bonding surface to the second adhesive tape bonding surface.

[0052] like Figure 3 As shown, the movable bracket 32 ​​in this embodiment is slidably equipped with a positioning sensor 38 for obtaining the position of the pipe fitting. The positioning sensor 38 can be a linear displacement sensor, a proximity switch, or a photoelectric sensor.

[0053] By incorporating the positioning sensor 38, the device can accurately perceive the actual size and / or lateral positioning status of the pipe fittings. This precise information can be used to control the clamping force of the drive driver 37 or adjust the initial position of the adhesive application drive mechanism 5, thereby improving the positioning accuracy and adhesive application precision for pipe fittings of different specifications, and further addressing the requirements for high-precision adhesive application.

[0054] like Figure 4 As shown, the adhesive applicator 4 in this embodiment includes a lifting driver 41, a movable mounting plate 42, an adhesive tray 43, an adhesive guide wheel 44, an adhesive applicator head 45, and an adhesive pressing head 46; wherein, the lifting driver 41 can be a drive module that uses a cylinder or a stepper motor / servo motor in conjunction with a guide rail / lead screw.

[0055] The lifting driver 41 is fixed to the adhesive application driving mechanism 5 and is used to drive the movable mounting plate 42 to rise and fall. The lifting driver 41 enables the adhesive application mechanism 4 to move closer to or further away from the pipe, ensuring accurate contact with the pipe surface when applying adhesive, safe separation when not in operation, and adaptability to different pipe diameters.

[0056] The adhesive tray 43 is rotatably mounted on the movable mounting plate 42 for conveying the tape; the guide roller 44 is rotatably mounted on the movable mounting plate 42 for guiding the tape conveying; the adhesive tray 43 ensures that the tape can be smoothly and accurately drawn out of the tray and guided to the adhesive application position.

[0057] The tape applicator 45 is located at one end of the movable mounting plate 42. It is used to press the tape onto the surface of the pipe fitting and to drive the tape conveying and cut the tape. The tape applicator 45 integrates the functions of tape initiation, conveying control and precise cutting, ensuring the accuracy of the beginning and end positioning of each tape.

[0058] The adhesive applicator 46 is located at the other end of the movable mounting plate 42 and is used to roll the tape already applied to the surface of the pipe fitting. Eliminating air bubbles or unevenness that may occur during the application process, the adhesive applicator 46 ensures full adhesion and smoothness between the tape and the pipe fitting surface, directly improving the quality and reliability of the adhesive application.

[0059] The adhesive application height is controlled by the lifting driver 41; the adhesive material tray 43 and the guide roller 44 ensure smooth conveying of the tape; the application, traction and cutting of the adhesive application head 45 and the rolling of the adhesive pressing head 46 realize the complete automated process of tape application, conveying, cutting and compaction, effectively solving the technical problems of uneven tape bonding and low precision, and ensuring the quality stability and efficiency of multiple adhesive application processes.

[0060] like Figure 4 As shown, the adhesive applicator 45 in this embodiment includes a cutter 451, an adhesive cutting actuator 452, an adhesive pulling box 453, and an adhesive applicator wheel 454; wherein, the adhesive cutting actuator 452 can be a drive module that works with a cylinder or a stepper motor / servo motor and a guide rail / lead screw.

[0061] The cutter 451 is movably mounted at the end of the movable mounting plate 42 for cutting the tape; the cutter 451 provides a cutting position.

[0062] The tape feeding box 453 is positioned above the cutter 451 and is used to pull the tape conveyor; it precisely controls the tape conveying process.

[0063] The tape cutting actuator 452 is fixed to the movable mounting plate 42 and is used to drive the cutter 451 to approach or move away from the tape hopper 453, so that the tape comes into contact with the cutter 451 and is cut. When the tape cutting actuator 452 drives the cutter 451 to approach the tape hopper 453 and cut the tape, the tape cutting actuator 452 drives the cutter 451 to move away from the tape hopper 453 and separate from the tape, ensuring normal tape feeding. This achieves automated and precise control of tape cutting, ensuring high consistency in the length of each tape.

[0064] The adhesive application roller 454 is rotatably mounted on one side of the adhesive box 453 to press the adhesive tape onto the surface of the pipe fitting. The adhesive application roller 454 achieves effective contact and initial adhesion between the adhesive tape and the surface of the pipe fitting.

[0065] The tape applicator 45 controls the tape conveying through the tape feeding box 453, and the tape cutter 451 is driven by the tape cutting actuator 452 to cooperate with the tape feeding box 453, so as to achieve precise cutting of the tape at a specified length; at the same time, the tape applicator roller 454 completes the initial pressing, ensuring accurate positioning of the beginning and end of each tape and a flat cut, effectively solving the technical requirements for tape applicator accuracy and tape beginning and end control.

[0066] like Figure 4 As shown, the adhesive box 453 in this embodiment is provided with an adhesive guide groove 4531, an adhesive tape patch 4532, and an adhesive tape actuator 4533; wherein, the adhesive tape actuator 4533 can be a drive module that cooperates with a cylinder or a stepper motor / servo motor and a guide rail / lead screw.

[0067] The guide groove 4531 is used to guide the conveyor belt to the applicator roller 454; it ensures that the conveyor belt can move along a predetermined and precise path during the traction process, and avoids the conveyor belt from running off track or curling.

[0068] The tape-pulling patch 4532 is used to bond with the tape and pull the tape to move; it provides a controllable drive point that can actively and precisely draw the required length of tape from the adhesive tray 43, thereby achieving precise length control of the tape.

[0069] The tape-pulling actuator 4533 is fixed to the movable mounting plate 42 and is used to drive the tape-pulling patch 4532 to move along the tape guide groove 4531 to the tape-applying roller 454. This realizes the automation and programming of tape conveying, as well as precise control of the traction distance.

[0070] The tape feeding box 453 drives the tape feeding pad 4532 via the tape feeding actuator 4533. Guided by the tape guide groove 4531, it can actively and precisely control the tape feeding distance until it reaches the application roller 454. This facilitates the application roller 454 pressing the tape onto the surface of the pipe fitting.

[0071] like Figure 4 As shown, the pressure head 46 in this embodiment includes a pressure roller 461 and a pressure driver 462; wherein, the pressure driver 462 may be a cylinder or a stepper motor / servo motor that works with a guide rail / lead screw.

[0072] The rolling roller 461 is rotatably mounted on the rolling actuator 462; The roller driver 462 is fixed to the movable mounting plate 42 and is used to drive the roller 461 to roll the tape that has been applied to the surface of the pipe fitting.

[0073] The pressure head 46 drives the roller 461 through the roller driver 462 to automatically and forcibly roll the applied tape, eliminating air bubbles or unevenness that may exist after the tape is applied, thus effectively solving the problem of unstable tape application quality and ensuring the reliability and flatness of multiple tape applications.

[0074] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A multi-layer adhesive applicator for positioning and applying adhesive to round tubes, characterized in that, It includes a frame (1), a pipe conveying mechanism (2), a pipe rotating mechanism (3), an adhesive application mechanism (4), and an adhesive application drive mechanism (5). One side of the frame (1) is provided with an adhesive application station (11) for applying adhesive to pipe fittings. The pipe fitting conveying mechanism (2) is installed on the frame (1) and is used to convey the pipe fitting to the adhesive application station (11). The pipe fitting rotation mechanism (3) is located at the adhesive application station (11) and is used to drive the pipe fitting to rotate along its own axis; The adhesive application mechanism (4) is located above the pipe rotation mechanism (3) and is used to apply adhesive to the surface of the pipe. The adhesive application drive mechanism (5) is fixed to the frame (1) and is used to drive the adhesive application mechanism (4) to move along the axial direction of the pipe.

2. The multi-layer adhesive applicator for positioning and applying adhesive to a round tube according to claim 1, characterized in that, The pipe fitting conveying mechanism (2) includes a conveying ramp (21) and a limiting guide (22); The conveying ramp (21) is located on one side of the frame (1) and is inclined downward toward the adhesive application station (11); The limiting guide (22) is disposed on the conveying ramp (21) to limit and / or guide the pipe to be conveyed along the conveying ramp (21).

3. The multi-layer adhesive applicator for positioning and applying adhesive to a round tube according to claim 2, characterized in that, The limiting guide (22) includes an edge guide (221), an anti-jump guide plate (222), a stop block (223), and a stop driver (224). The edge guide (221) is disposed on both sides of the edge of the conveying ramp (21) and is used to guide the tube to roll along the conveying ramp (21); The anti-jump guide plate (222) is disposed above the conveying ramp (21), and a conveying gap is formed between the anti-jump guide plate (222) and the conveying ramp (21) that allows only one pipe to pass through; The stop block (223) is located on the side of the conveying ramp (21) near the adhesive application station (11) and is used to control the conveying of the pipe fittings; The stop driver (224) is fixed to the frame (1) and is used to drive the stop block (223) to move closer to or away from the conveying ramp (21).

4. A multi-layer adhesive applicator for positioning round tubes according to claim 2 or 3, characterized in that, An extension plate (23) is provided on the side of the conveying ramp (21) near the pipe rotating mechanism (3). The extension plate (23) is disposed above the pipe rotating mechanism (3) and is used to support the pipe rolling down the pipe rotating mechanism (3).

5. The multi-layer adhesive applicator for positioning and applying adhesive to a round tube according to claim 1, characterized in that, The pipe rotation mechanism (3) includes a fixed bracket (31), a movable bracket (32), a first roller (33), a second roller (34), a first rotation driver (35), a second rotation driver (36), and a push driver (37). The fixed bracket (31) is fixed to the frame (1) and located on one side of the adhesive application station (11); The first roller (33) is rotatably mounted on the fixed bracket (31); The first rotation driver (35) is fixed to the fixed bracket (31) and is used to drive the first roller (33) to rotate; The movable bracket (32) is slidably disposed on the frame (1) and located on the other side of the adhesive application station (11); The second roller (34) is rotatably mounted on the movable bracket (32); The second rotation driver (36) is fixed to the movable bracket (32) and is used to drive the second roller (34) to rotate; The push driver (37) is fixed to the frame (1) and is used to drive the movable bracket (32) to move closer to or away from the fixed bracket (31).

6. The multi-layer adhesive applicator for positioning and applying adhesive to a round tube according to claim 5, characterized in that, The movable support (32) is slidably equipped with a positioning sensor (38) for obtaining the position of the pipe fitting.

7. The multi-layer adhesive applicator for positioning round tubes according to claim 1, characterized in that, The adhesive applicator (4) includes a lifting driver (41), a movable mounting plate (42), an adhesive tray (43), an adhesive guide wheel (44), an adhesive applicator head (45), and an adhesive pressing head (46). The lifting driver (41) is fixed to the adhesive application driving mechanism (5) and is used to drive the movable mounting plate (42) to rise and fall; The solid adhesive tray (43) is rotatably mounted on the movable mounting plate (42) for conveying the adhesive belt; The guide roller (44) is rotatably mounted on the movable mounting plate (42) for guiding the conveyor belt. The adhesive applicator (45) is located at one end of the movable mounting plate (42) and is used to press the tape onto the surface of the pipe fitting, pull the tape to convey and cut the tape. The pressure head (46) is located at the other end of the movable mounting plate (42) and is used to roll the tape that has been attached to the surface of the pipe fitting.

8. A multi-layer adhesive applicator for positioning round tubes according to claim 7, characterized in that, The adhesive applicator (45) includes a cutter (451), an adhesive cutting actuator (452), an adhesive pulling box (453), and an adhesive applicator wheel (454). The cutter (451) is movably disposed at the end of the movable mounting plate (42) and is used to cut the tape; The tape-pulling box (453) is located above the cutter (451) and is used to pull the tape for conveying. The tape cutting actuator (452) is fixed to the movable mounting plate (42) and is used to drive the cutter (451) to move closer to or away from the tape-pulling box (453) so that the tape comes into contact with the cutter (451) and is cut. The adhesive roller (454) is rotatably mounted on one side of the adhesive box (453) to press the adhesive tape onto the surface of the pipe fitting.

9. A multi-layer adhesive applicator for positioning round tubes according to claim 8, characterized in that, The adhesive box (453) is provided with an adhesive guide groove (4531), an adhesive tape patch (4532), and an adhesive tape actuator (4533). The adhesive guide groove (4531) is used to guide the tape to be conveyed to the adhesive roller (454). The tape-pulling patch (4532) is used to adhere to the tape and pull the tape to move; The tape-pulling actuator (4533) is fixed to the movable mounting plate (42) and is used to drive the tape-pulling patch (4532) to move along the adhesive guide groove (4531) to the adhesive roller (454).

10. A multi-layer adhesive applicator for positioning round tubes according to claim 7 or 8, characterized in that, The pressure head (46) includes a pressure roller (461) and a pressure driver (462). The rolling roller (461) is rotatably mounted on the rolling driver (462). The rolling driver (462) is fixed to the movable mounting plate (42) and is used to drive the rolling wheel (461) to roll the tape that has been attached to the surface of the pipe fitting.

Images