Gluing mechanism of coating machine
By designing a combined structure of a first roller, a second roller, and a traction roller on the coating machine, and combining it with real-time detection by a coating head and strain gauge sensors, the problem of uneven coating of the membrane was solved, achieving continuous and uniform coating of the membrane surface and high-quality substrate coating.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-20
AI Technical Summary
In the existing coating process of coating machines, the distribution of the film and the coating head is easily affected by tension fluctuations and uneven friction, which can lead to uneven coating problems such as insufficient or accumulated glue on the film during the coating process.
A coating mechanism for a coating machine was designed. A first roller with horizontal spacing and a second roller with vertical spacing, combined with a coating head that can extend horizontally and a traction roller, form primary and secondary tension support points to ensure stable tension adhesion between the film and the coating head. A strain gauge sensor is used to detect and adjust the film tension in real time to ensure uniform coating.
It achieves continuous and uniform adhesive coating on the membrane surface, improves the final substrate coating quality, and avoids adhesive deficiency or accumulation.
Smart Images
Figure CN224010288U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a coating and gluing equipment technical field, concretely relates to a coating machine gluing mechanism. BACKGROUND
[0002] In the existing coating equipment, the conveying and gluing process of the film body have important influence on the quality of finished products. The current coating machine generally adopts multiple sets of guide rollers, traction rollers and gluing mechanisms to transmit and glue the film body, so that the film body can be uniformly attached to the surface of the base material.
[0003] However, in the gluing process of the prior art coating machine, the film body is supported by the tensioning roller or the guide roller body to form an inclined path, the gluing head is usually arranged on the lower side of the film body and directly contacts the surface of the film body arranged in an inclined manner, and the film body is inclined to realize better gluing effect. This distribution mode of the film body and the gluing head is easily affected by tension fluctuation and uneven friction, and is prone to cause the phenomenon of uneven gluing such as lack of glue or accumulation of glue during the gluing process of the film body, thereby affecting the coating quality of the film body on the base material. SUMMARY
[0004] TECHNICAL PROBLEM
[0005] In view of the above-mentioned defects in the prior art, the utility model provides a coating machine gluing mechanism, which can effectively solve the problem that the distribution mode of the film body and the gluing head easily causes the phenomenon of uneven gluing such as lack of glue or accumulation of glue during the gluing process of the film body.
[0006] TECHNICAL SCHEME
[0007] To achieve the above-mentioned purposes, the utility model realizes the following technical scheme:
[0008] The utility model provides a coating machine gluing mechanism for glueing the side surface of the film body, which comprises a pair of first rollers arranged horizontally and spaced apart, and a pair of second rollers arranged vertically and spaced apart, which are arranged on the lower side of the first rollers.
[0009] The gluing head is provided with a glue outlet, and the gluing head is tapered at one end of the glue outlet. The gluing head is arranged on the front side of the second roller, and the gluing head can horizontally extend into the gap between the second rollers.
[0010] The traction roller is arranged on the lower side of the second roller, the second roller is distributed protruding between the traction roller and the first roller, the film body is guided out through the first roller, adheres to the outer circumferential surface of the side of the second roller facing the gluing head, and is then driven and output through the traction roller. When the gluing head horizontally extends into the gap between the second rollers, the gluing head compresses the film body to be concave inward at the gap.
[0011] Further, a releasing roller is arranged to support the film body, and the releasing roller is rotated by a servo drive to release the film body, and the released film body crosses the first roller body.
[0012] Further, the first roller body is coaxially provided with a pair of limiting rings, and the interval distance between the limiting rings is adapted to the width of the film body.
[0013] Further, a moving part is arranged to horizontally stretch and retract the glue applying head, and the moving part comprises a fixed frame, a moving frame and a straight cylinder, the moving frame is connected to the fixed frame through a guide rail pair on both sides, the glue applying head is fixed on the moving frame, and the straight cylinder is arranged between the moving frame and the fixed frame and drives the glue applying head to horizontally reciprocate when in action.
[0014] Further, the two second roller bodies are vertically and separately arranged and fixed in parallel on the fixed frame, and the fixed frame is provided with a avoiding slot at a gap area corresponding to the second roller body.
[0015] Further, a cylindrical groove is formed at the glue outlet of the glue applying head, a glue rolling column is fitted in the cylindrical groove, the circumferential surface of the glue rolling column is extended out of the glue applying head, and a strain gauge sensor is arranged outside the glue rolling column, and the strain gauge sensor is used to detect the tension of the film body in real time when the glue rolling column contacts the film body.
[0016] Further, an elastic support is fixed on the moving frame, both ends of the glue rolling column are extended out of the glue applying head and are rotatably connected to the elastic support, the elastic support is in the shape of an arc, and the strain gauge sensor is attached to the arc surface of the elastic support.
[0017] Further, the traction roller is independently driven by a servo motor, and a spring adjuster is arranged outside the main shaft of the traction roller, and the tension can be adjusted in the horizontal direction.
[0018] Further, the outer surface of the traction roller is covered with a rubber layer.
[0019] Beneficial effects
[0020] Compared with the known prior art, the technical scheme provided by the utility model has the following beneficial effects:
[0021] The utility model discloses a first roller body, second roller body and traction roller between the convex distribution structure design and the combination design of the second roller body and the glue applying head that are arranged at intervals, and the first roller body and traction roller form a first tension support point, and the second roller body arranged at intervals forms a second tension support point, and the film body that is compressed and deformed by the glue applying head is in the shape of "<" and covers the glue applying head, so that the film body is symmetrically stressed on both sides of the glue applying head in the continuous glue applying process, the film body and the glue applying head keep stable tension fit, and the uniformity of the surface of the film body is guaranteed, and the coating quality of the final base material is guaranteed. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.
[0023] Figure 1 It is the schematic diagram of the glue applying assembly of the utility model on the coating machine;
[0024] Figure 2 It is the schematic diagram of the overall structure of the glue applying mechanism of the utility model;
[0025] Figure 3 It is the connection schematic diagram of the second roller body and the glue applying head on the moving piece of the utility model;
[0026] Figure 4 It is Figure 2 It is the local enlarged schematic diagram of A in the middle;
[0027] Figure 5 It is the installation schematic diagram of the outer end of the glue rolling column on the elastic support of the utility model;
[0028] The reference numerals in the drawing respectively represent: 1, glue applying assembly;2, coating machine;10, first roller body;11, limiting ring;20, second roller body;30, glue applying head;31, cylindrical groove;32, glue rolling column;33, strain gauge sensor;34, elastic support;40, traction roller;50, unwinding shaft;60, film body;70, moving piece;71, fixed frame;72, moving frame;73, direct-acting cylinder;74, avoiding notch;80, spring adjuster. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0030] The utility model will be further described in combination with embodiments below.
[0031] Embodiment:
[0032] The utility model provides a kind of coating machine gluing mechanism, for the glue water coating of one side surface of film body 60, by optimizing and improving gluing component 1 structure, a new distribution structure form of film body 60 and glue head 30 is proposed, to solve the problem that uneven gluing such as lack of glue or glue accumulation of film body 60 in gluing process is easily caused by tension fluctuation, friction unevenness etc. in existing product scheme.
[0033] With reference to Figures 1-5 , the main structural components of the gluing component 1 of the scheme include, in order, the unwinding shaft 50 responsible for driving release, the first roller body 10 group responsible for guiding deviation correction, the second roller body 20 group for establishing a matching gap, the traction roller 40 for driving traction, and of course, the glue head 30 that can be inserted into the gap between the second roller body 20 group, wherein it is worth mentioning that the unwinding shaft 50 and the traction roller 40 in the scheme are both driven by independent servo motors, and through the PLC control system connected to the inside of the coating machine 2, the speed can be actively adjusted according to the operation feedback to maintain the tension balance when the film body 60 is conducted. In addition, the glue head 30 is connected to the external hot melt adhesive conveying equipment through a conduit, and no further description is made hereafter.
[0034] Specifically, the unwinding shaft 50 for supporting the coiled material of the film body 60, a commonly used air inflation shaft is adopted in the embodiment to adapt to the installation of coiled materials with different hole diameters, and the unwinding shaft 50 releases the film body 60 by rotating through servo driving, and the released film body 60 crosses the first roller body 10.
[0035] A pair of second roller bodies 20 are vertically spaced apart obliquely below the first roller body 10, the second roller bodies 20 are spaced apart by a small distance to form a small gap, and the second roller bodies 20 are also passive rotating mandrel roller bodies. In addition to the basic functions of the first roller body 10, the small gap formed by the second roller bodies 20 provides tension support points for the compression deformation of the film body 60 when used in cooperation with the glue applying head 30.
[0036] The glue applying head 30 is provided with a linear glue outlet, and the end of the glue outlet of the glue applying head 30 is in a tapered structure. In order to avoid damaging the surface of the film body 60, the edges of the end of the glue outlet of the glue applying head 30 are all transitioned by arc surfaces. The glue applying head 30 is arranged on the front side of the second roller body 20 through a displaceable moving part 70, and under the driving of the moving part 70, the glue applying head 30 can horizontally extend into the gap between the second roller bodies 20.
[0037] The traction roller 40 is also arranged obliquely below the second roller body 20. In this way, the second roller body 20 is distributed convexly between the traction roller 40 and the first roller body 10. The film body 60 is guided out by the first roller body 10, adheres to the outer circumferential surface of the side of the second roller body 20 facing the glue applying head 30, and is then driven out by the traction roller 40. When the glue applying head 30 horizontally extends into the gap between the second roller bodies 20, the glue applying head 30 causes the film body 60 to inwardly recess at this gap. At this time, the glue applying head 30 can actively contact and press the film body 60 passing through the second roller body 20, so that the film body 60 inwardly recesses at this gap to form a "<" shape. The "<" shaped film body 60 wraps the tapered glue applying head 30.
[0038] Specifically, in the present embodiment, the traction roller 40 adopts a large-diameter roller body to reduce the uneven force on the film body 60, so that the film body 60 is more stable during conveying. The outer surface of the traction roller 40 is coated with a high-friction rubber layer, such as polyurethane PU, which can effectively increase the friction and prevent the film body 60 from slipping. The traction roller 40 is independently driven by a servo motor, and the main shaft of the traction roller 40 is provided with a spring adjuster 80. The tension can be manually adjusted in the horizontal direction.
[0039] The glue coating assembly 1 of the present scheme is designed in a convex distribution structure among the first roller body 10, the second roller body 20 and the traction roller 40, and is designed in combination with the second roller body 20 and the glue coating head 30 which are arranged at intervals. The glue coating head 30 is extended into the gap between the second roller body 20 to actively compress the film body 60, so that the first roller body 10 and the traction roller 40 form a first level tension support point, the second roller body 20 arranged at intervals forms a second level tension support point, and the film body 60 compressed and deformed by the glue coating head 30 is in the shape of "<" and covers the glue coating head 30. In the continuous glue coating process, the film body 60 is symmetrically stressed on both sides of the glue coating head 30, so that the film body 60 and the glue coating head 30 are stably and tightly connected in tension, and the combination of the "<" shape wrapping type connection ensures the uniformity of the surface of the film body 60 in the continuous glue coating process, and guarantees the wrapping quality of the final substrate.
[0040] The following is a description of the preferred embodiments of the present scheme:
[0041] In order to realize the deviation rectification ability of the first roller body 10, a pair of limiting rings 11 is coaxially arranged on the first roller body 10, and the user can manually set the interval distance between the limiting rings 11 to be suitable for the width of the film body 60.
[0042] The moving part 70 for horizontal extension of the glue coating head 30 includes a fixed frame 71, a moving frame 72 and a straight cylinder 73. The moving frame 72 is connected to the fixed frame 71 through a guide pair (i.e. a linear guide and a sliding block) on both sides, the glue coating head 30 is fixed on the moving frame 72, and the straight cylinder 73 is arranged between the moving frame 72 and the fixed frame 71. When the straight cylinder 73 is actuated, the glue coating head 30 is horizontally reciprocated to realize the in-out movement of the glue coating head 30 in the gap between the second roller body 20.
[0043] The two second roller bodies 20 arranged vertically at intervals are fixed in parallel on the fixed frame 71 and are connected through axial plug screws, so that the second roller body can rotate on the axis. The fixed frame 71 is provided with an avoiding notch 74 at the gap area corresponding to the second roller body 20. The avoiding notch 74 is used to avoid mechanical interference between the glue coating head 30 and its connecting parts, and can also facilitate the user to observe the glue coating state of the film body 60 in the gap area.
[0044] In order to further maintain the tension balance of the film body 60 in the whole gluing process, a film body 60 tension monitoring feedback mechanism is added at the gluing head 30, so that the gluing head 30 can obtain the tension feedback of the film body 60 in real time when contacting the film body 60, and provide more accurate data for the active adjustment of the traction roller 40. Specifically, a cylindrical groove 31 is formed at the glue outlet of the gluing head 30, and a glue rolling column 32 is fitted in the cylindrical groove 31, the circumferential surface of the glue rolling column 32 extends out of the gluing head 30, and the glue rolling column 32 is in rolling contact with the surface of the film body 60 during gluing. An elastic support 34 fixed on a moving frame 72 is also included, the elastic support 34 is made of 1mm spring steel and is bent into shape, the two ends of the glue rolling column 32 extend out of the gluing head 30 and are rotatably connected to the elastic support 34 through a rotating bearing, the elastic support 34 is in the shape of a circular arc, and a strain sensor 33 is attached to the arc surface of the elastic support 34. The specific monitoring principle is that when the gluing head 30 presses the film body 60, the reaction force from the film body 60 causes the elastic support 34 supporting the glue rolling column 32 to deform slightly, and the strain sensor 33 detects the deformation and converts it into the tension of the film body 60. The strain sensor 33 is a full-bridge resistance strain gauge, and the main body is a finished module, which will not be described here.
[0045] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present application.
Claims
1. A coating machine adhesive application mechanism for coating one side surface of a film with adhesive, characterized in that, include, A pair of first rollers arranged at horizontal intervals; A pair of second rollers, arranged vertically at intervals, are positioned below the first roller. A glue applicator is provided with a glue outlet. The glue applicator has a tapered structure at one end of the glue outlet. The glue applicator is located on the front side of the second roller body and can extend horizontally into the gap between the second roller bodies. It also includes a traction roller disposed on the lower side of the second roller body, the second roller body protruding between the traction roller and the first roller body, the film body being guided out by the first roller body, adhering to the outer peripheral surface of the second roller body facing the coating head, and then driven out by the traction roller; wherein, when the coating head can be horizontally extended into the gap of the second roller body, the coating head presses the film body to be recessed inward at this gap.
2. The coating machine adhesive application mechanism according to claim 1, characterized in that, It also includes an unwinding shaft for supporting the roll of film, the unwinding shaft being rotated by a servo drive to release the film, and the released film crossing the first roller.
3. The coating machine adhesive application mechanism according to claim 2, characterized in that, The first roller body is coaxially provided with a pair of limiting rings, and the spacing between the limiting rings is adapted to the width of the film body.
4. The coating machine adhesive application mechanism according to claim 1, characterized in that, It also includes a movable component for horizontal extension and retraction of the dispensing head. The movable component includes a fixed frame, a movable frame, and a direct-acting cylinder. The movable frame is connected to the fixed frame on both sides via guide rails. The dispensing head is fixed on the movable frame. The direct-acting cylinder is disposed between the movable frame and the fixed frame and drives the dispensing head to move horizontally back and forth when it is activated.
5. The coating machine adhesive application mechanism according to claim 4, characterized in that, Two second rollers, arranged vertically at intervals, are fixed in parallel to the fixing frame, and the fixing frame has clearance slots at the corresponding gap areas of the second rollers.
6. The coating machine adhesive application mechanism according to claim 4, characterized in that, A cylindrical groove is formed at the glue outlet of the glue applicator. A glue roller is fitted into the cylindrical groove with a clearance. The circumferential surface of the glue roller extends out of the glue applicator. A strain gauge sensor is connected to the outside of the glue roller. When the glue roller contacts the membrane, the tension of the membrane is detected in real time by the strain gauge sensor.
7. The coating machine adhesive application mechanism according to claim 6, characterized in that, It also includes an elastic bracket fixed on the movable frame, with both ends of the glue roller extending out of the glue applicator and rotatably connected to the elastic bracket, the elastic bracket being arc-shaped, and the strain gauge sensor attached to the arc surface of the elastic bracket.
8. The coating machine adhesive application mechanism according to claim 1, characterized in that, The traction roller is equipped with a servo motor for independent drive, and the main shaft of the traction roller is externally connected to a spring adjuster, which can adjust the tension in the horizontal direction.
9. The coating machine adhesive application mechanism according to claim 8, characterized in that, The outer surface of the traction roller is covered with a rubber layer.