A ring-wrapping mechanism used in an adhesive applicator

Abstract

This utility model discloses a wrapping mechanism for an adhesive applicator. It includes a base plate and a gantry frame mounted on the base plate. Feed rollers and discharge rollers are respectively located at the left and right ends of the gantry frame. A crossbeam is provided on the lower end face of the crossbar of the gantry frame. A flow channel is provided inside the crossbeam, and air holes are evenly distributed at the bottom of the crossbeam, all of which communicate with the flow channel. A connector for connecting a vacuum pump is provided on the crossbeam, and the connector communicates with the flow channel. Wrapping frames are located in front of and behind the base plate of the gantry frame. This utility model relies on the crossbeam, which can perform vacuum adsorption of materials, to fix the material during wrapping, effectively fixing and clamping long strip-shaped materials, ensuring the stability of material clamping. Combined with the pressure roller shaft and the springs at the receiving plate and the crossbeam, the pressure roller shaft completes the wrapping work in one go during the pushing process.

Description

Technical Field

[0001] This utility model relates to the field of adhesive application equipment technology, and in particular to a ring wrapping mechanism used in an adhesive application machine. Background Technology

[0002] As is well known, a tape applicator is an automated device for applying adhesive to semi-finished products. It applies double-sided tape (3M tape) one by one to the adhesive side of the product. Based on the machine's programmed settings, it can automatically perform processes such as material feeding, tape distribution, application, cutting, and material collection, significantly reducing labor costs and efficiently completing the tedious tape application work. Generally, single-sided tape is applied during the application process, but for certain products, some require a circumferential application, meaning the entire product is covered with tape.

[0003] Currently, existing loop wrapping adhesive application processes rely on the adhesive applicator completing single-sided application. The double-sided adhesive remains suspended on the left and right sides, and a loop wrapping mechanism then completes the subsequent loop wrapping. This existing mechanism typically involves first taut the single-sided applied material, then using a roller-like structure to press down the edges of the still-suspended double-sided adhesive and push it inwards to complete the loop wrapping. While this method maintains stability for shorter products, it becomes problematic for longer products. Relying solely on pulling the material during loop wrapping easily leads to swaying, uneven application, and ultimately, defective products. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a ring-wrapping mechanism for applying adhesive to long strip products using an adhesive applicator.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A wrapping mechanism for an adhesive applicator includes a base plate and a gantry frame mounted on the base plate. Feed rollers and discharge rollers are respectively mounted at the left and right ends of the gantry frame. A crossbeam is mounted on the lower end face of the crossbar of the gantry frame. A flow channel is provided inside the crossbeam, and air holes are evenly distributed at the bottom of the crossbeam, all of which communicate with the flow channel. A connector for connecting a vacuum pump is mounted on the crossbeam, and the connector communicates with the flow channel. Wrapping frames are mounted in front of and behind the base plate of the gantry frame. A working platform is mounted on the top of the wrapping frame via a first slide rail. A first lead screw motor is mounted on the wrapping frame. The nut seat is connected to the working platform. The working platform is equipped with a movable plate and a second lead screw motor for driving the movable plate to move via a second slide rail. The movable plate is connected to the nut seat of the second lead screw motor. A hinge block is installed on the movable plate. A round rod is shafted to one end of the hinge block. A cross plate is provided at the other end of the hinge block. A swing arm is shafted to both ends of the round rod. A pressure roller shaft is shafted to one end of the swing arm. The pressure roller shaft is placed on the side of the cross beam. The other end of the swing arm is connected to a support plate. A spring is provided between the surface of the support plate and the cross plate. Under the action of the spring, the support plate always stays against the end face of the hinge block.

[0007] Preferably, the cross plate is threaded with a first adjusting bolt, the top of which is adapted to be above the receiving plate.

[0008] Preferably, at least one auxiliary plate is also axially connected to the middle of the round rod. One end of the auxiliary plate is fixed to the receiving plate, and the other end of the auxiliary plate is provided with a stepped surface. Two sets of rolling rollers are provided on the stepped surface, and the rollers are supported on the lower end face of the pressure roller shaft.

[0009] Preferably, the gantry frame is equipped with a first cylinder at both the feed roller shaft and the discharge roller shaft, which can push the material vertically upward. The push head of the first cylinder is equipped with a push roller shaft for contacting the material.

[0010] Preferably, the ring-wrapping frame is mounted on the base plate via a third slide rail, a column is provided on the base plate, the column is shaft-connected to a second adjusting bolt, a connecting seat is provided on the ring-wrapping frame, and a threaded hole adapted to the second adjusting bolt is provided on the connecting seat, the second adjusting bolt is locked into the threaded hole.

[0011] Preferably, the substrate is mounted on the adhesive applicator via a fourth slide rail, and at least one second cylinder is provided at the bottom of the substrate. A brake block is provided on the push head of the second cylinder. After the push head of the second cylinder is pushed out, the brake block presses against the guide rail of the fourth slide rail.

[0012] Preferably, at least one photoelectric sensor is provided at both the first and second slide rails.

[0013] Preferably, the ring-shaped frame is also provided with an outer cover.

[0014] By adopting the above solution, this utility model relies on the crossbeam that can perform vacuum adsorption of materials to fix the materials during the ring wrapping process, effectively fixing and clamping long strip-shaped materials, ensuring the stability of material clamping, and combined with the pressure roller shaft and the springs at the receiving plate and the crossbeam, the pressure roller shaft can complete the ring wrapping work in one go during the pushing process. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the ring-wrapping frame according to an embodiment of the present utility model.

[0017] Figure 3 This is a schematic diagram of the ring-wrapping frame from another direction according to an embodiment of the present utility model.

[0018] Figure 4 This is a cross-sectional view of the receiving plate in an embodiment of this utility model.

[0019] Figure 5 This is a cross-sectional view of the beam in an embodiment of this utility model.

[0020] Figure 6 This is a schematic diagram of the structure with an outer cover installed according to an embodiment of the present utility model.

[0021] Figure 7 This is a structural schematic diagram of the second cylinder in an embodiment of the present invention.

[0022] Figure 8 This is a structural schematic diagram of the material pattern according to an embodiment of the present utility model. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0026] like Figures 1 to 8As shown in the figure, this embodiment provides a ring-wrapping mechanism for an adhesive applicator, including a base plate 1 and a gantry frame 2 mounted on the base plate 1. Feed roller shafts (not shown) and discharge roller shafts 3 are respectively mounted at the left and right ends of the gantry frame 2. A crossbeam 4 is mounted on the lower end face of the crossbar of the gantry frame 2. A flow guide channel 41 is provided inside the crossbeam 4. Air holes 42 are evenly distributed at the bottom of the crossbeam 4, and all air holes 42 communicate with the flow guide channel 41. A connector 43 for connecting a vacuum pump is mounted on the crossbeam 4, and the connector 43 communicates with the flow guide channel 41. Ring-wrapping frames 5 are mounted on the base plate 1 in front of and behind the gantry frame 2. A working platform 52 is mounted on the top of the ring-wrapping frame 5 via a first slide rail 51. A first lead screw motor 53 is mounted on the ring-wrapping frame 5. The nut seat of the first lead screw motor 53 is connected to the working platform 52. The platform 52 is connected to the working platform 52. A movable plate 55 and a second lead screw motor 56 for driving the movable plate 55 to move are provided on the working platform 52 via a second slide rail 54. The movable plate 55 is connected to the nut seat of the second lead screw motor 56. A hinge block 57 is installed on the movable plate 55. A round rod 58 is axially connected to one end of the hinge block 57. A cross plate 59 is provided at the other end of the hinge block 57. A swing rod 501 is axially connected to both ends of the round rod 58. A pressure roller shaft 502 is axially connected to one end of the swing rod 501. The pressure roller shaft 502 is placed on the side of the cross beam 4. The other end of the swing rod 501 is connected to a support plate 503. A spring 504 is provided between the plate surface of the support plate 503 and the cross plate 59. Under the action of the spring 504, the support plate 503 always stays against the end face of the hinge block 57.

[0027] In this embodiment, the semi-finished product (hereinafter referred to as material) with single-sided tape already applied enters from the feed roller shaft, passes through the bottom surface of the crossbeam 4, and exits from the discharge roller shaft 3. For the operation settings of the tape applicator, the material is in a taut state and is transported in one direction. The material's shape at this time is as follows: Figure 8As shown, the tape on both sides of the material is the part that will be wrapped. When the wrapping work begins, the external vacuum pump connected to the crossbeam 4 is turned on to draw a vacuum, adsorbing the end of the material with the tape already attached. The tape to be wrapped is located on both sides of the crossbeam 4. As the vacuum continues to work, the material will be steadily and flatly adsorbed. At this point, the first screw motor 53 operates, moving the work platform 52 along the first slide rail 51 to a suitable height, i.e., the pressure roller shaft 502 is higher than the material. Then, the second screw motor 56 operates, moving the movable plate 55 towards the material, i.e., moving the pressure roller shaft 502 towards the crossbeam 4, i.e., when the pressure roller shaft 502 is on the material (above the tape that needs to be wrapped around the material). Then, the first screw motor 53 operates, lowering the work platform 52 to a certain height, causing the pressure roller shaft 502 to press down on the tape, and making the center line of the pressure roller shaft 502 slightly lower than the bottom surface of the crossbeam 4. Finally, the second screw motor 56 pushes the movable plate 55 inward, because the center line of the pressure roller shaft 502 has just passed the bottom surface of the crossbeam 4, and the receiving plate 503 at the other end of the swing arm 501 is not fixed, but relies on the spring. As the top pressure support, after the pressure roller shaft 502 is pushed horizontally, the upper end face of the pressure roller shaft 502 touches the crossbeam 4, and the pressure roller shaft 502 will move downward. The swing arm 501 swings, causing the receiving plate 503 to tilt up and the spring 504 to be compressed. As the movable plate 55 continues to move inward, the pressure roller shaft 502 will drive the tape to fold downward and rely on the reaction force of the spring 504 on the pressure roller shaft 502. The pressure roller shaft 502 will have an upward pressing force, which is the pressing force for applying the tape, thus adhering the tape to the lower end face of the material. This pressure roller shaft 502 is divided into two synchronous working parts, which can quickly complete the circumferential tape application in one go. After the circumferential tape application is completed, the first lead screw motor 53 and the second lead screw motor 56 return to their positions, waiting for the next tape application work. In order to more accurately feed back the movement parameters to the system during each movement operation, this embodiment provides at least one photoelectric sensor 505 at both the first slide rail 51 and the second slide rail 54. The photoelectric sensor 505 is divided into a photoelectric sensor and a trigger plate. As for the specific installation position of the photoelectric sensor and the trigger plate, one can be installed on the component connected to the slider, and the other can be connected to the component connected to the guide rail.

[0028] Furthermore, specific adjustments are required for the thickness of different materials and the tolerance values ​​during equipment installation. The sliding trajectory of the pressure roller shaft 502, the main component of the ring-wrapping adhesive in this application, also needs to be adjusted accordingly, which means limiting the range of motion of the receiving plate 503. Therefore, in this embodiment, a first adjusting bolt 506 is threaded into the horizontal plate 59. The top of the first adjusting bolt 506 is adapted to the top of the receiving plate 503. In this way, the range of motion of the receiving plate 503 is limited according to the depth of the first adjusting bolt 506.

[0029] Furthermore, because the span of the pressure roller shaft 502 is relatively long, it may sag and deform in the middle during operation, thus making it impossible to reliably complete the circumferential adhesive application. Therefore, in this embodiment, at least one auxiliary plate 507 is also shaft-connected to the middle of the round rod 58. One end of the auxiliary plate 507 is fixed to the receiving plate 503, and the other end of the auxiliary plate 507 is provided with a stepped surface. Two sets of rolling rollers 508 are provided on the stepped surface. The rollers 508 are supported on the lower end face of the pressure roller shaft 502. In this way, the rollers 508 at the stepped surface support the bottom of the pressure roller shaft 502, thereby playing a supporting role and preventing it from sagging due to excessive span.

[0030] Furthermore, in order to quickly and reliably allow the crossbeam 4 to adsorb the material, the gantry frame 2 in this embodiment is equipped with a first cylinder 21 at both the feed roller shaft and the discharge roller shaft 3, which can push the material vertically upward. The push head of the first cylinder 21 is equipped with a push roller shaft 22 for contacting the material. When working, the first cylinder 21 first drives the push roller shaft 22 to lift the material upward, so that the upper surface of the material (the side with the tape attached) directly abuts against the air hole 42 of the crossbeam 4, so that after the vacuum is turned on, it can be directly adsorbed.

[0031] Furthermore, to facilitate the adjustment of the installation position, the ring-wrapping frame 5 in this embodiment is mounted on the base plate 1 via a third slide rail 509. A column 11 is provided on the base plate 1, and a second adjusting bolt 12 is shaft-connected to the column 11. A connecting seat 510 is provided on the ring-wrapping frame 5, and a threaded hole adapted to the second adjusting bolt 12 is provided on the connecting seat 510. The second adjusting bolt 12 is locked into the threaded hole. In this way, the position of the ring-wrapping frame 5 can be finely adjusted by adjusting the second adjusting bolt 12, thereby finely adjusting the spatial position of other components on the ring-wrapping frame 5.

[0032] Furthermore, in this embodiment, the entire mechanism is mounted on the adhesive applicator, so there is a requirement to move or adjust its position. Once the position is determined, it needs to be locked. Therefore, in this embodiment, the substrate 1 is mounted on the adhesive applicator via the fourth slide rail 13. At least one second cylinder 14 is provided at the bottom of the substrate 1. A brake block 15 is provided on the push head of the second cylinder 14. After the push head of the second cylinder 14 is pushed out, the brake block 15 presses against the guide rail of the fourth slide rail 13. In this way, whether the entire mechanism is manually pushed or mechanically driven, once the appropriate position is reached, the movement can be locked by the operation of the second cylinder 14.

[0033] In addition, the ring wrapping machine frame 5 in this embodiment is also provided with an outer cover 511, which is used to prevent debris from falling into the ring wrapping machine frame 5.

[0034] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A ring-wrapping mechanism used in an adhesive applicator, characterized in that: The system includes a substrate and a gantry frame mounted on the substrate. Feed rollers and discharge rollers are respectively installed at the left and right ends of the gantry frame. A crossbeam is installed on the lower end face of the crossbar of the gantry frame, and a flow guide channel is provided inside the crossbeam. Air holes are evenly distributed at the bottom of the crossbeam, and all air holes communicate with the flow guide channel. A connector for connecting a vacuum pump is provided on the crossbeam, and the connector communicates with the flow guide channel. A ring-wrapping frame is installed in front of and behind the gantry frame on the substrate. A working platform is installed at the top of the ring-wrapping frame via a first slide rail. A first lead screw motor is installed on the ring-wrapping frame, and the nut seat of the first lead screw motor is connected to the working platform. The platform is connected, and a movable plate and a second lead screw motor for driving the movable plate to move are set on the working platform via a second slide rail. The movable plate is connected to the nut seat of the second lead screw motor. A hinge block is installed on the movable plate. A round rod is shafted to one end of the hinge block, and a cross plate is set at the other end of the hinge block. A swing arm is shafted to both ends of the round rod. A pressure roller shaft is shafted to one end of the swing arm. The pressure roller shaft is placed on the side of the cross beam. The other end of the swing arm is connected to a support plate. A spring is set between the plate surface of the support plate and the cross plate. Under the action of the spring, the support plate always stays against the end face of the hinge block.

2. The ring-wrapping mechanism for an adhesive applicator as described in claim 1, characterized in that: The cross plate is threaded in with a first adjusting bolt, the top of which is adapted to be above the receiving plate.

3. The ring-wrapping mechanism for an adhesive applicator as described in claim 2, characterized in that: At least one auxiliary plate is also axially connected to the middle of the round rod. One end of the auxiliary plate is fixed to the receiving plate, and the other end of the auxiliary plate is provided with a stepped surface. Two sets of rolling rollers are provided on the stepped surface, and the rollers are supported on the lower end face of the pressure roller shaft.

4. The ring-wrapping mechanism for an adhesive applicator as described in claim 3, characterized in that: The gantry frame is equipped with a first cylinder at both the feed roller shaft and the discharge roller shaft, which can push the material vertically upward. The push head of the first cylinder is equipped with a push roller shaft for contacting the material.

5. The ring-wrapping mechanism for an adhesive applicator as described in claim 4, characterized in that: The ring-wrapping frame is mounted on the base plate via a third slide rail. A column is set on the base plate, and a second adjusting bolt is connected to the column shaft. A connecting seat is provided on the ring-wrapping frame, and a threaded hole adapted to the second adjusting bolt is provided on the connecting seat. The second adjusting bolt is locked into the threaded hole.

6. The ring-wrapping mechanism for an adhesive applicator as described in claim 1, characterized in that: The substrate is mounted on the adhesive applicator via a fourth slide rail. At least one second cylinder is provided at the bottom of the substrate. A brake block is provided on the push head of the second cylinder. After the push head of the second cylinder is pushed out, the brake block presses against the guide rail of the fourth slide rail.

7. The ring-wrapping mechanism for an adhesive applicator as described in claim 5, characterized in that: At least one photoelectric sensor is provided at both the first and second slide rails.

8. The ring-wrapping mechanism for an adhesive applicator as described in claim 1, characterized in that: The ring-shaped frame is also equipped with an outer cover.

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