Technical Field
The utility model relates to the technical field of adhesive strips, in particular to an IR preheating unit.
Background Art
Adhesive strip is a commonly used bonding material. Before practical application, a preheating unit equipped with IR lamps is required to preheat the adhesive strip so as to guarantee the subsequent bonding performance of the adhesive strip. However, the existing preheating devices suffer from poor preheating performance and uneven heating of adhesive strips during operation, which leads to non-uniform preheating and adversely affects the bonding effect. In view of the above problems, it is urgent to carry out innovative design on the basis of the original preheating unit.
Contents of the Utility Model
The purpose of the utility model is to provide an IR preheating unit so as to solve the problems of unsatisfactory preheating effect, poor heating condition of adhesive strips, uneven preheating and impaired bonding performance mentioned in the background art.
To achieve the above purpose, the utility model adopts the following technical scheme:An IR preheating unit comprises a base frame, a first IR lamp and a second IR lamp.A motor is mounted on the side of the base frame. The motor is connected to rotating shafts rotatably mounted inside the base frame. Horizontally arranged conveying rollers are mounted on the rotating shafts, and adjacent rotating shafts are connected through gear chains.A transverse shaft arranged inside a power box is disposed above the base frame. The power box is fixed at the top end of an equipment housing, and the equipment housing is installed on the upper end face of the base frame.Vertically arranged first connecting rods are slidably connected to the top wall of the equipment housing. The first IR lamp is fixedly connected to the bottom end of the first connecting rod. The second IR lamp is arranged on the side of the first IR lamp. A first vertical rod and a second vertical rod are fixedly mounted at the edges of the first IR lamp and the second IR lamp respectively. The upper end face of the second IR lamp is slidably connected with the equipment housing via second connecting rods.
Preferably, anti-slip strips distributed at equal angles are bonded to the conveying rollers. The anti-slip strips are arranged parallel to the rotating shafts and made of rubber materials.
Preferably, belt pulleys are arranged at the end of the transverse shaft and the outermost rotating shaft. The belt pulleys are connected via a transmission belt. The horizontally arranged transverse shaft is rotatably connected with the power box, and a circular plate is fixed at the end of the transverse shaft.
Preferably, the circular plate is arranged vertically. A horizontally arranged adjusting column is fixed at the edge of its front surface. The adjusting column is fitted inside a square frame. The length of the square frame is equal to the diameter of the circular plate, and the lower end face of the square frame is connected with the first connecting rod.
Preferably, the top end of the first vertical rod is slidably connected to the top wall of the equipment housing. A first rack is welded on the inner surface of the first vertical rod and meshes with a transmission gear. The transmission gear is mounted at the top of the equipment housing through a gear shaft and meshes with a second rack. The second rack, which is symmetrically arranged relative to the first rack, is fixed on the second vertical rod.
Beneficial Effects
Compared with the prior art, the utility model has the following beneficial effects:According to the IR preheating unit, the two IR lamps cyclically move up and down, so that the conveyed adhesive strips can be heated uniformly to the maximum extent, and the bonding performance of the adhesive strips is guaranteed with a more reasonable structural design.
The anti-slip strips ensure stable conveying of adhesive strips on the conveying rollers. With the adoption of components such as belt pulleys matched with the circular plate, rotation of the rotating shafts can drive one lamp to move up and down, realizing a more rational structural layout.
The arrangement of transmission gears ensures that the lifting movement of one lamp drives the other lamp to move reversely synchronously. Combined with the conveying function of the conveying rollers, the heating effect on the moving adhesive strips is improved.
