CN224010288U

CN224010288U - A coating machine adhesive application mechanism

Info

Publication number: CN224010288U
Application number: CN202520648131.4U
Authority: CN
Inventors: 曹丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2025-04-08
Filing date: 2025-04-08
Publication date: 2026-03-20
Anticipated expiration: 2035-04-08

Abstract

This utility model relates to the field of wireless charging equipment technology, specifically to a coating machine adhesive coating mechanism for coating adhesive on one side surface of a film. It includes a pair of first rollers spaced horizontally apart; and a pair of second rollers spaced vertically apart, positioned below the first rollers; and an adhesive coating head with an adhesive outlet, one end of which is tapered. The adhesive coating head is positioned in front of the second rollers and can extend horizontally into the gap between the second rollers. This utility model effectively solves the problem of uneven adhesive coating, such as insufficient or accumulated adhesive, that easily occurs when the film and adhesive coating head are distributed in a way that leads to insufficient or accumulated adhesive during the coating process.

Description

Coating machine rubber coating mechanism

Technical Field

The utility model relates to the technical field of coating and gluing equipment, in particular to a coating machine gluing mechanism.

Background

In the existing coating equipment, the conveying and gluing process of the film body has an important influence on the quality of the finished product. The existing coating machine generally adopts a plurality of groups of guide rollers, traction rollers and a gluing mechanism to carry out film body transmission and glue coating, so that the film body can be uniformly attached to the surface of a substrate.

However, in the gluing process of the prior art coating machine, the film body is supported by the tensioning roller or the guiding roller body to form an inclined path, the gluing head is usually arranged at the lower side of the film body, and is directly contacted with the surface of the obliquely arranged film body, so that a better gluing effect is realized by obliquely attaching the film body. The distribution mode of the film body and the gluing head is easily affected by tension fluctuation, uneven friction force and the like, and the phenomenon of uneven gluing such as glue shortage or glue accumulation and the like in the gluing process of the film body is easily caused, so that the coating quality of the final film body on a substrate is affected.

Disclosure of utility model

Technical problem to be solved

Aiming at the defects existing in the prior art, the utility model provides a coating machine gluing mechanism which can effectively solve the problem that uneven gluing such as glue shortage or glue accumulation occurs in the gluing process of a film body due to the distribution mode of the film body and a gluing head.

Technical proposal

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the utility model provides a coating machine gluing mechanism which is used for coating glue on one side surface of a film body and comprises a pair of first roller bodies horizontally arranged at intervals and a pair of second roller bodies vertically arranged at intervals, wherein the second roller bodies are arranged at the lower sides of the first roller bodies;

The glue spreading head is provided with a glue outlet, one end of the glue outlet is in a conical structure, the glue spreading head is arranged on the front side of the second roller body, and the glue spreading head can horizontally extend into the gap between the second roller bodies;

The glue spreading device comprises a first roller body, a second roller body, a glue spreading head, a film body, a traction roller, a film body, a first roller body, a second roller body, a glue spreading head and a glue spreading head, wherein the traction roller is arranged at the lower side of the second roller body, the second roller body is convexly distributed between the traction roller and the first roller body, the film body is guided and led out through the first roller body, is attached to the outer peripheral surface of the second roller body, which faces one side of the glue spreading head, and is driven and output through the traction roller, and when the glue spreading head horizontally stretches into a gap between the second roller body, the glue spreading head presses the film body to be inwards recessed at the gap.

Further, the film body winding device also comprises a winding shaft for supporting the coiled material of the film body, the winding shaft releases the film body through servo driving rotation, and the released film body crosses through the first roller body.

Further, the first roller body is coaxially provided with a pair of limiting rings, and the spacing distance between the limiting rings is matched with the width of the film body.

Further, the horizontal telescopic glue spreading device comprises a moving part used for horizontally stretching the glue spreading head, the moving part comprises a fixed frame, a moving frame and a direct-acting cylinder, two sides of the moving frame are connected with the fixed frame through guide rail pairs, the glue spreading head is fixed on the moving frame, and the direct-acting cylinder is arranged between the moving frame and the fixed frame and drives the glue spreading head to horizontally reciprocate during action.

Further, two second roller bodies arranged at vertical intervals are fixed in parallel to the fixed frame, and avoidance notches are formed in the fixed frame at the positions corresponding to the clearance areas of the second roller bodies.

Further, a cylindrical groove is formed at the glue outlet of the glue spreading head, a glue rolling column is in clearance fit in the cylindrical groove, the circumferential surface of the glue rolling column extends out of the glue spreading head, a strain gauge sensor is externally connected with the glue rolling column, and when the glue rolling column contacts the film body, the tension of the film body is detected in real time through the strain gauge sensor.

Further, the automatic glue spreading device also comprises an elastic support fixed on the movable frame, two ends of the glue spreading column extend out of the glue spreading head and are rotatably connected to the elastic support, the elastic support is arc-shaped, and the strain gauge sensor is attached to the arc surface of the elastic support.

Further, the traction roller is provided with a servo motor to be independently driven, a main shaft of the traction roller is externally connected with a spring regulator, and tension adjustment can be performed in the horizontal direction.

Further, the outer surface of the traction roller is coated with a rubber layer.

Advantageous effects

Compared with the known public technology, the technical scheme provided by the utility model has the following beneficial effects:

According to the utility model, through designing the design of the convex distribution structure among the first roller body, the second roller body and the traction roller and the design of the combination of the second roller body and the gluing heads which are arranged at intervals, the film body is actively pressed at the gap between the gluing heads extending into the second roller body, so that the first roller body and the traction roller form a first-stage tension supporting point, the second roller body which is arranged at intervals form a second-stage tension supporting point, and the film body pressed and deformed by the gluing heads is coated on the gluing heads in a "<" shape, so that the film body is symmetrically stressed on both sides of the gluing heads in the continuous gluing process, the film body and the gluing heads are stably pressed and laminated in a "<" shape coating mode, the uniformity of continuous gluing of the surface of the film body is ensured, and the coating quality of a final substrate is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic illustration of a glue assembly of the present utility model on a coating machine;

FIG. 2 is a schematic diagram of the whole structure of the glue spreading mechanism of the present utility model;

FIG. 3 is a schematic view of the connection of the second roll body and the applicator head to the moving member according to the present utility model;

FIG. 4 is an enlarged schematic view of a portion of FIG. 2A;

FIG. 5 is a schematic view of the outer end of the glue rolling column of the present utility model mounted on an elastic support;

The reference numbers in the figure respectively represent 1, a gluing component, 2, a coating machine, 10, a first roller body, 11, a limiting ring, 20, a second roller body, 30, a gluing head, 31, a cylindrical groove, 32, a glue rolling column, 33, a strain gauge sensor, 34, an elastic support, 40, a traction roller, 50, a unreeling shaft, 60, a film body, 70, a moving part, 71, a fixed frame, 72, a moving frame, 73, a direct-acting cylinder, 74, a avoiding notch, 80 and a spring regulator.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model is further described below with reference to examples.

Examples:

The utility model provides a coating machine gluing mechanism, which is used for coating glue on one side surface of a film body 60, and provides a novel distribution structure form of the film body 60 and a gluing head 30 by optimizing and improving the structure of a gluing assembly 1, so that the problems that the film body 60 is easily affected by tension fluctuation, uneven friction force and the like in the existing product scheme, and uneven gluing such as glue shortage or glue accumulation and the like in the gluing process are easily caused are solved.

Referring to fig. 1-5, the main structure of the glue spreading assembly 1 in this scheme includes, in order, a releasing shaft 50 responsible for driving release, a first roller body 10 set responsible for guiding and rectifying, a second roller body 20 set for establishing a fit gap, and a traction roller 40 for driving traction, and of course, a glue spreading head 30 capable of being inserted into the gap of the second roller body 20 set, where, it should be noted that, in this scheme, the releasing shaft 50 and the traction roller 40 are driven by separate servo motors, and the rotational speed can be actively adjusted according to operation feedback by accessing a PLC control system in the coating machine 2, so as to maintain tension balance when the film body 60 is conducted. In addition, the glue applicator 30 is connected to an external hot melt adhesive delivery device by a conduit, which will not be described in detail.

Specifically, the unwinding shaft 50 for supporting the coiled material of the membrane body 60 can be adapted to the installation of coiled materials with different apertures by adopting a common air expansion shaft in the embodiment, the unwinding shaft 50 releases the membrane body 60 through servo-driven rotation, and the released membrane body 60 passes through the first roller body 10 in a crossing manner. The pair of first roller bodies 10 arranged at horizontal intervals are horizontally distributed on one side of the unreeling shaft 50, wherein the first roller bodies 10 are passively rotated roller bodies and are mainly used for guiding and tension buffering of the film body 60.

A pair of second roller bodies 20 are vertically arranged below the first roller body 10 at intervals, the interval distance between the second roller bodies 20 is smaller, a small gap area is formed, the second roller body 20 is also a polished rod roller body capable of passively rotating, the polished rod roller body has the basic function of the first roller body 10, when the small gap area formed by the second roller body is matched with the gluing head 30 for use, and the upper and lower second roller bodies 20 provide tension support points for the pressed deformation of the film body 60.

The glue spreading head 30 with a linear glue outlet is provided, one end of the glue outlet of the glue spreading head 30 is in a conical structure, and certainly, in order to avoid damaging the surface of the film body 60, the edge of the glue outlet end of the glue spreading head 30 adopts arc surface transition, and the glue spreading head 30 is arranged at the right front side of the second roller body 20 through a movable part 70, and can horizontally extend into the gap between the second roller body 20 under the drive of the movable part 70.

The adhesive coating device further comprises a traction roller 40 arranged on the obliquely lower side of the second roller body 20, and the combination design is adopted, so that the second roller body 20 forms convex distribution between the traction roller 40 and the first roller body 10, the film body 60 is led out through the first roller body 10, is attached to the outer peripheral surface of the second roller body 20 facing one side of the adhesive coating head 30, and is driven to be output through the traction roller 40, wherein when the adhesive coating head 30 horizontally stretches into a gap of the second roller body 20, the adhesive coating head 30 presses the film body 60 to be inwards sunken at the gap, and at the moment, the adhesive coating head 30 can actively contact and press the film body 60 passing through the second roller body 20, so that the film body 60 is inwards sunken in a "<" shape at the gap, and the tapered adhesive coating head 30 is wrapped by the film body 60.

Specifically, the traction roller 40 in this embodiment adopts a roller body with a large diameter, so as to reduce uneven local stress of the film body 60, so that the conveying is more stable, and the outer surface of the traction roller 40 is coated with a high friction rubber layer, such as polyurethane PU, so that the friction force can be effectively increased, and the film body 60 is prevented from slipping. The traction roller 40 is provided with a servo motor to be independently driven, a spring regulator 80 is externally connected with a main shaft of the traction roller 40, and the tension adjustment can be manually performed in the horizontal direction.

According to the gluing component 1, through designing the first roller body 10, the second roller body 20 and the traction roller 40 to be of a convex distribution structure design and combining the second roller body 20 and the gluing head 30 which are arranged at intervals, the gap between the gluing head 30 extending into the second roller body 20 is used for actively pressing the film body 60, so that the first roller body 10 and the traction roller 40 form a first-level tension supporting point, the second roller body 20 which is arranged at intervals forms a second-level tension supporting point, the film body 60 pressed and deformed by the gluing head 30 is coated on the gluing head 30 in a "<" shape, the film body 60 is symmetrically stressed on two sides of the gluing head 30 in the continuous gluing process, stable tension lamination is kept between the film body 60 and the gluing head 30, and the "<" shape wrapping lamination is combined, so that the uniformity of continuous gluing on the surface of the film body 60 is ensured, and the coating quality of a final base material is ensured.

The following is a description of a preferred embodiment of the present solution:

In order to achieve the deviation rectifying capability of the first roller body 10, a pair of limiting rings 11 are coaxially arranged on the first roller body 10, and a user can manually set the spacing distance between the limiting rings 11 to be adaptive to the width of the film body 60.

The moving member 70 for horizontally stretching and retracting the glue spreading head 30, the moving member 70 comprises a fixed frame 71, a moving frame 72 and a straight moving cylinder 73, two sides of the moving frame 72 are connected with the fixed frame 71 through guide rail pairs (namely, linear guide rails and sliding blocks), the glue spreading head 30 is fixed on the moving frame 72, the straight moving cylinder 73 is arranged between the moving frame 72 and the fixed frame 71, and the glue spreading head 30 is driven to horizontally reciprocate during the action to realize the in-out of the glue spreading head 30 between the gaps of the second roller bodies 20.

The two second roller bodies 20 which are vertically arranged at intervals are parallelly fixed on the fixed frame 71 and are connected through axial plugging screws, so that the second roller can keep rotating on the axis, the fixed frame 71 is provided with the avoidance notch 74 at the clearance area corresponding to the second roller body 20, and the avoidance notch 74 is used for avoiding mechanical interference between the gluing head 30 and the connecting piece thereof on one hand and facilitating a user to observe the gluing state of the film body 60 in the clearance area.

In order to further maintain tension balance of the film body 60 in the whole gluing process, a tension monitoring feedback mechanism of the film body 60 is additionally arranged at the gluing head 30, so that the gluing head 30 can acquire tension feedback of the film body 60 in real time when contacting the film body 60, and more accurate data is provided for active adjustment of the traction roller 40. Specifically, a cylindrical groove 31 is formed at the glue outlet of the glue spreading head 30, a glue rolling column 32 is in clearance fit in the cylindrical groove 31, the circumferential surface of the glue rolling column 32 extends out of the glue spreading head 30, and when glue spreading is realized, the glue spreading is realized through the rolling of the glue rolling column 32 and the surface contact of the film body 60. The elastic support 34 is fixed on the movable frame 72, the elastic support 34 is formed by bending 1mm spring steel, two ends of the glue rolling column 32 extend out of the glue spreading head 30 and are connected to the elastic support 34 in a rotating mode in cooperation with a rotating bearing, the elastic support 34 is arc-shaped, and the strain gauge sensor 33 is attached to the arc surface of the elastic support 34. The specific monitoring principle is that when the glue spreading head 30 presses the film body 60, the reaction force given by the film body 60 causes the elastic support 34 supported by the glue rolling column 32 to slightly deform, and the strain gauge sensor 33 detects the deformation amount and converts the deformation amount into the tension of the film body 60. The strain gauge sensor 33 is a full bridge resistance strain gauge, and the main body is a finished module, which is not described herein.

Although the present utility model has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the foregoing embodiments may be modified or equivalents may be substituted for some of the features thereof, and that the modification or substitution does not depart from the spirit and scope of the embodiments.

Claims

1. A coating machine adhesive application mechanism for coating one side surface of a film with adhesive, characterized in that it comprises,

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 mechanism of a coating machine according to claim 1, characterized in that it further 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 passing crosswise through the first roller.

3. The coating mechanism of a coating machine according to claim 2, characterized in that a pair of limiting rings are coaxially arranged on the first roller body, and the interval between the limiting rings is adapted to the width of the film body.

4. The coating mechanism of a coating machine according to claim 1, characterized in that it further includes a movable component for horizontal extension and retraction of the coating head, the movable component including a fixed frame, a movable frame and a direct-acting cylinder, the movable frame being connected to the fixed frame on both sides via guide rail pairs, the coating head being fixed on the movable frame, and the direct-acting cylinder being disposed between the movable frame and the fixed frame, driving the coating head to move horizontally reciprocating during operation.

5. The coating mechanism of a coating machine according to claim 4, characterized in that two second rollers arranged vertically at intervals are fixed in parallel to the fixed frame, and the fixed frame is provided with clearance slots at the corresponding gap areas of the second rollers.

6. The coating mechanism of a coating machine according to claim 4, characterized in that a cylindrical groove is formed at the glue outlet of the coating head, a roller is fitted in the cylindrical groove with a gap, the circumferential surface of the roller extends out of the coating head, and a strain gauge sensor is connected to the outside of the roller. When the 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 further includes an elastic bracket fixed on a movable frame, the two ends of the adhesive roller extending out of the adhesive application head and rotatably connected to the elastic bracket, the elastic bracket being arc-shaped, and the strain gauge sensor being attached to the arc surface of the elastic bracket.

8. The coating mechanism of a coating machine 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 mechanism of a coating machine according to claim 8, wherein the outer surface of the traction roller is coated with a rubber layer.