Glue sprayer capable of automatically sensing size and position of product

Abstract

The invention provides a glue sprayer capable of automatically sensing the size and position of a product, and belongs to the technical field of packaging equipment, the glue sprayer comprises a portal frame used for mounting a glue spraying assembly and a conveying structure penetrating through the portal frame, and the glue spraying assembly comprises a mounting beam perpendicular to the conveying direction of the conveying structure and mounted on the portal frame; opposite type electric eyes are fixedly installed at the two ends of the installation beam respectively, a sliding frame is further installed on the installation beam in a sliding mode, the sliding direction of the sliding frame is perpendicular to the conveying direction, and a glue spraying gun and a position photoelectric sensor for downward detection are installed on the sliding frame; the glue spraying assembly is provided with the correlation type electric eye for detecting in the horizontal direction and the position photoelectric sensor for detecting in the vertical direction, the position photoelectric sensor is installed in a sliding mode, the position and the size of a product can be automatically detected through cooperation of the correlation type electric eye and the position photoelectric sensor, and then glue spraying operation is directly carried out; the automation degree and the intelligence degree are high, and the glue spraying efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging equipment, and in particular relates to a glue spraying machine capable of automatically sensing product size and position. Background Art

[0002] Glue spraying machine is an automated or semi-automated equipment that uses pressure to atomize glue (such as hot melt glue, water-based glue, solvent-based glue, etc.) and then sprays it evenly on the surface of the material. Its core function is to accurately and efficiently complete processes such as bonding, sealing, fixing or coating. It is widely used in the packaging industry. Its efficient and precise spraying characteristics can meet diverse packaging needs, especially in terms of automated production, environmental protection requirements and process quality improvement.

[0003] However, the existing glue spraying machines need a centering table to measure the size of the product before they can start the glue spraying operation on the product. The degree of automation and intelligence is still insufficient, which affects the glue spraying efficiency. Summary of the invention

[0004] Based on the above-mentioned problems existing in the prior art, the present invention provides a glue spraying machine which can automatically sense the size and position of a product, including a gantry for installing a glue spraying assembly and a conveying structure passing through the gantry, wherein the conveying structure is provided with a workbench at a corresponding position of the gantry, and the glue spraying assembly includes a mounting beam which is mounted on the gantry perpendicular to the conveying direction of the conveying structure, and opposing electric eyes are fixedly mounted on both ends of the mounting beam, and a sliding frame is slidably mounted on the mounting beam, and the sliding direction of the sliding frame is perpendicular to the conveying direction, and a glue spraying gun and a photoelectric sensor for downward detection are mounted on the sliding frame.

[0005] Among them, vertical slide rails are vertically installed on both sides of the gantry, and lifting plates are installed on the vertical slide rails to slide up and down. A sprocket is rotatably installed above and below the vertical slide rails of the gantry, and the same transmission chain is meshed and installed on the two sprockets. One of the sprockets is connected to the lifting motor, and the transmission chain and the lifting plate are fixedly connected. The lifting motor drives the lifting plate to slide up and down, and the two ends of the mounting beam are respectively fixedly installed on the lifting plates on both sides of the gantry.

[0006] The lifting motor is installed on one side of the gantry, and a transmission shaft is fixedly installed on the rotating shaft of the lifting motor through a coupling. The transmission shaft is fixedly connected to the sprockets located above on both sides of the gantry, and the transmission shaft is rotatably installed on the gantry.

[0007] Wherein, two mutually parallel mounting beams are installed on the lifting plate, a plurality of groups of spray gun structures are slidably installed on each mounting beam, and a proximity switch is fixedly installed on each mounting beam.

[0008] Among them, a horizontal slide rail is fixedly installed on the upper surface and one of the side surfaces of the mounting beam, and a driving rack is fixedly installed on the other side surface of the mounting beam. The spray gun structure includes a right-angle frame as a sliding frame, and a sliding block is fixedly installed on each side of the right-angle frame and is slidably connected to the two horizontal slide rails respectively. The right-angle frame is also fixedly installed with a sliding motor, and a transmission gear meshing with the driving rack is fixedly installed on the power shaft of the sliding motor. The spray gun structure is driven to slide along the horizontal slide rail by the sliding motor, and the glue gun is installed on the right-angle frame, and a position photoelectric sensor is also fixedly installed on the right-angle frame of one or more spray gun structures.

[0009] Wherein, the mounting beam is provided with cylindrical shock-proof structures for limiting position at both ends of one of the horizontal slide rails.

[0010] Among them, the same group of spray gun structures is equipped with two position photoelectric sensors, and the two position photoelectric sensors are arranged along the sliding direction.

[0011] The present invention has the beneficial effects that a through-type electric eye for detecting in the horizontal direction and a position photoelectric sensor for detecting in the vertical direction are arranged on the glue spraying assembly, and the position photoelectric sensor is slidably installed. The position and size of the product can be automatically detected through the cooperation of the through-type electric eye and the position photoelectric sensor, and then the glue spraying operation can be directly carried out. The degree of automation and intelligence is high, and the glue spraying efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural diagram of a glue spraying machine that automatically senses product size and position.

[0013] Figure 2 It is a three-dimensional structural diagram of the gantry and the glue spraying assembly.

[0014] Figure 3 yes Figure 2 Enlarged view of point A.

[0015] Figure 4 yes Figure 2 Enlarged view of point B.

[0016] Figure 5 It is a three-dimensional structural schematic diagram of the glue spraying component.

[0017] Figure 6 yes Figure 5 Enlarged view of point C.

[0018] Figure 7 This is a schematic diagram of the coordination between one of the mounting beams and the lifting plate.

[0019] Figure 8 yes Figure 7 Enlarged view of point D.

[0020] Fig. 9 It is a schematic diagram of the three-dimensional structure of the glue spraying component from another angle.

[0021] Fig.10 yes Fig. 9 Enlarged view of point E. DETAILED DESCRIPTION

[0022] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] As attached Figure 1-10 The glue spraying machine shown in the figure can automatically sense the size and position of the product, including a gantry 2 for installing the glue spraying component 1, and a conveying structure 3 passing through the gantry 2. The conveying structure 3 is a conventional conveyor belt structure, including conveying rollers and conveyor belts sleeved on the conveying rollers, and the products are conveyed by the conveyor belts. The conveying structure 3 is provided with a workbench 4 at the corresponding position of the gantry 2. Two vertical slide rails 5 are vertically installed on both sides of the gantry 2, and four vertical slide rails 5 are installed on both sides. The two vertical slide rails 5 on the same side are installed with the same lifting plate 6 for sliding up and down. A sprocket 7 is rotatably installed above and below the center line between the two vertical slide rails 5 on the same side of the gantry 2, and the same transmission chain (the transmission chain is not shown in the accompanying drawings) is meshed and installed on the two sprockets 7. The transmission chain and the lifting plate 6 are fixedly connected. A lifting motor 8 is fixedly installed on the upper part of one side of the gantry 2, and a transmission shaft 9 is fixedly installed on the rotating shaft of the lifting motor 8 through a coupling. The sprocket wheels 7 located at the top on both sides of the gantry 2 are fixedly connected, and the transmission shaft 9 is rotatably installed on the gantry 2. The two lifting plates 6 are driven to slide up and down synchronously by the lifting motor 8. Two parallel mounting beams 10 are fixedly installed between the two lifting plates 6. Four proximity switches 11 are fixedly installed on the mounting beam 10 close to the feed side, and two proximity switches 11 are fixedly installed on the other mounting beam 10. The proximity switches 11 are used to determine the height distance between the mounting beam and the product. Both ends of each mounting beam 10 are respectively fixedly installed on the lifting plates 6 on both sides. The mounting beams 10 are perpendicular to the conveying direction of the conveying structure 3. The two lifting plates 6 are correspondingly fixedly installed with opposing electric eyes 12, that is, the two ends of the mounting beams 10 are respectively fixedly installed with opposing electric eyes 12, one of the mounting beams 10 is slidably installed with two groups of spray gun structures 13, and the other mounting beam 10 is slidably installed with four groups of spray gun structures 13. The spray gun structure 13 and the mounting beam 10 constitute a glue spraying assembly 1.

[0024] As a preferred embodiment, a horizontal slide rail 14 is fixedly installed on the upper surface and one of the side surfaces of the mounting beam 10, a driving rack 15 is fixedly installed on the other side surface of the mounting beam 10, and the spray gun structure 13 includes a right-angle frame as a sliding frame 16, and a sliding block is fixedly installed on each side of the right-angle frame and is slidably connected to the two horizontal slide rails 14 respectively. The right-angle frame is also fixedly installed with a sliding motor 17, and a transmission gear 18 meshing with the driving rack 15 is fixedly installed on the power shaft of the sliding motor 17. The spray gun structure 13 is driven by the sliding motor 17 to move along the water The smooth rail 14 slides, that is, the sliding direction of the sliding frame 16 is perpendicular to the conveying direction. A glue gun 19 is also fixedly installed on the right-angle frame. Two position photoelectric sensors 20 are fixedly installed on the right-angle frame of one of the spray gun structures 13 on the mounting beam 10 close to the feed side. The two position photoelectric sensors 20 are arranged along the sliding direction. The mounting beam 10 is provided with cylindrical shockproof structures 21 for limiting at both ends of one of the horizontal slide rails 14. The cylindrical shockproof structure 21 is used to limit the sliding stroke of the spray gun structure 13 and buffer the movement and collision of the spray gun structure 13.

[0025] The glue spraying machine provided in this embodiment can be used as a part of a carton packaging production line. The conveying structure 3 is a part of the conveying structure 3 of the entire production line. After the product is aligned, it is conveyed from the upstream of the production line to the workbench 4 through the conveying structure 3.

[0026] Before use, the height of the glue spraying assembly 1 is adjusted by the lifting motor 8 according to the size of the product, so that the through-type electric eye 12 can detect whether there is a product. When the product is conveyed to the workbench 4, the detection of the through-type electric eye 12 is blocked first, and the product continues to be conveyed until the detection of the through-type electric eye 12 is no longer blocked, and the product stops being conveyed. At this time, the length of the product and the position of the product can be calculated according to the conveying speed and the blocking time (the product is located on one side of the optical path of the through-type electric eye 12); then the spray gun structure 13 equipped with the position photoelectric sensor 20 slides along the mounting beam 10 driven by the sliding motor 17, and at the same time, the position photoelectric sensor 20 detects the product and converts the width of the product, that is, the position and size of the product can be obtained, and then all the spray gun structures 13 are driven to move according to the preset program and perform corresponding glue spraying operations.

[0027] The above-mentioned embodiment only expresses one implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A glue spraying machine capable of automatically sensing product size and position, comprising a gantry (2) for mounting a glue spraying assembly (1), and a conveying structure (3) passing through the gantry (2), wherein the conveying structure (3) is provided with a workbench (4) at a position corresponding to the gantry (2), characterized in that: The glue spraying assembly (1) comprises a mounting beam (10) mounted on a gantry (2) perpendicular to the conveying direction of the conveying structure (3), with opposing electric eyes (12) fixedly mounted on both ends of the mounting beam (10), and a sliding frame (16) slidably mounted on the mounting beam (10), wherein the sliding direction of the sliding frame (16) is perpendicular to the conveying direction, and a glue spraying gun (19) and a downward detection position photoelectric sensor (20) are mounted on the sliding frame (16).

2. The glue spraying machine capable of automatically sensing product size and position according to claim 1, characterized in that: Vertical slide rails (5) are vertically installed on both sides of the gantry (2), and lifting plates (6) are installed on the vertical slide rails (5) to slide up and down. A sprocket (7) is rotatably installed above and below the vertical slide rails (5) of the gantry (2), and the same transmission chain is meshed and installed on the two sprockets (7), one of the sprockets (7) is transmission-connected to a lifting motor (8), and the transmission chain and the lifting plate (6) are fixedly connected. The lifting motor (8) drives the lifting plate (6) to slide up and down, and the two ends of the mounting beam (10) are respectively fixedly installed on the lifting plates (6) on both sides of the gantry (2).

3. The glue spraying machine capable of automatically sensing product size and position according to claim 2, characterized in that: The lifting motor (8) is mounted on one side of the gantry (2); a transmission shaft (9) is fixedly mounted on the rotating shaft of the lifting motor (8) via a coupling; the transmission shaft (9) is fixedly connected to sprocket wheels (7) located above both sides of the gantry (2); and the transmission shaft (9) is rotatably mounted on the gantry (2).

4. The glue spraying machine capable of automatically sensing product size and position according to claim 2, characterized in that: Two mutually parallel mounting beams (10) are mounted on the lifting plate (6), and a plurality of groups of spray gun structures (13) are slidably mounted on each mounting beam (10); and a proximity switch (11) is fixedly mounted on each mounting beam (10).

5. The glue spraying machine capable of automatically sensing product size and position according to claim 4, characterized in that: A horizontal slide rail (14) is fixedly mounted on the upper surface and one side surface of the mounting beam (10), a driving rack (15) is fixedly mounted on the other side surface of the mounting beam (10), the spray gun structure (13) comprises a right angle frame as a sliding frame (16), a sliding block is fixedly mounted on each side of the right angle frame and is respectively slidably connected to the two horizontal slide rails (14), the right angle frame is also fixedly mounted with a sliding motor (17), a transmission gear (18) meshing with the driving rack (15) is fixedly mounted on the power shaft of the sliding motor (17), the spray gun structure (13) is driven to slide along the horizontal slide rail (14) by the sliding motor (17), the glue gun (19) is mounted on the right angle frame, and a position photoelectric sensor (20) is also fixedly mounted on the right angle frame of one or more spray gun structures (13).

6. The glue spraying machine capable of automatically sensing product size and position according to claim 5, characterized in that: The mounting beam (10) is provided with cylindrical shock-proof structures (21) for limiting position at both ends of one of the horizontal slide rails (14).

7. The glue spraying machine capable of automatically sensing product size and position according to claim 5, characterized in that: The same group of spray gun structures (13) is equipped with two position photoelectric sensors (20), and the two position photoelectric sensors (20) are arranged along the sliding direction.

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