Glue spraying machine and glue spraying method thereof
The glue spraying machine addresses issues of uneven glue distribution and unstable conveyance by employing a detachable head, guide head, and grid plate, achieving uniform glue application and efficient, stable production.
Patent Information
- Application Number
- CN202411500410.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-01-03
AI Technical Summary
Existing glue spraying machines suffer from imprecise glue distribution, uneven glue lines, difficult maintenance, glue waste, bubble formation, and unstable material conveyance, leading to reduced quality and efficiency.
A glue spraying machine with a detachable glue spraying head, a lifting drive device, a guide head, and a grid plate for uniform glue distribution, combined with a conveying device and a return filtering system, along with intelligent detection and control systems for precise glue application.
Ensures continuous and uniform glue lines, improves maintenance flexibility, reduces waste, and enhances production efficiency and quality by accurately controlling glue flow and height, while maintaining equipment stability and cleanliness.
Smart Images
Figure CN119237239A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of veneer processing machinery, and in particular relates to a glue spraying machine and a glue spraying method thereof. Background Art
[0002] Under the technical background of existing glue spraying machines, there are a series of problems that affect the quality and efficiency of glue spraying. First, the glue spraying head design of traditional glue spraying machines is often not precise enough, and the distribution of glue spraying holes is not uniform, resulting in uneven distribution of glue liquid on the material and discontinuous glue lines, which affects the glue spraying quality. At the same time, the fixed connection method of the glue spraying head makes maintenance and replacement difficult, reducing the flexibility and service life of the equipment.
[0003] Secondly, the traditional glue spraying machine lacks a mechanism to accurately control the height and flow of the glue liquid, resulting in glue waste and uneven coverage of the material during the glue spraying process. In addition, the connection pipeline between the glue dispensing box and the glue spraying head is not designed properly, which easily generates bubbles and impurities when conveying the glue liquid, further affecting the glue spraying quality.
[0004] Furthermore, the conveying device design of traditional glue spraying machines is often not stable and reliable enough, and the material is prone to deviation or jamming during the conveying process, affecting the continuity and stability of the glue spraying process. Summary of the invention
[0005] In view of the problems of the prior art, a glue spraying machine and a glue spraying method thereof are proposed. The present invention provides the following technical solutions: A glue spraying machine comprises a frame, on which a conveying device and an installation box are installed, the installation box is mounted on the conveying device, a lifting drive device is arranged in the installation box, the lifting drive device is driven and connected with a lifting connecting piece, the lower end of the lifting connecting piece is connected with a glue dispensing box for storing glue liquid, a colloid pump is installed on the glue dispensing box, a glue spraying head is detachably connected to the bottom of the glue dispensing box, the glue dispensing box is connected to the glue spraying head, and a plurality of rows of glue spraying holes are evenly distributed on the bottom of the glue spraying head.
[0006] Preferably, a guide head for assisting the glue liquid to connect into a line is detachably connected under the glue spraying hole.
[0007] Preferably, a liquid collecting port is provided above the flow guide head, and a glue outlet is provided below the flow guide head, and the liquid collecting port and the glue outlet are connected to form a glue collecting cavity.
[0008] Preferably, a grid plate for uniformly distributing the glue liquid is installed in the glue collecting chamber, and grid holes are arranged on the grid plate, and the width of the grid holes is smaller than the diameter of the glue spraying hole.
[0009] Preferably, the conveying device includes a driving motor and a driving shaft, a first driven shaft, a second driven shaft, and a third driven shaft rotatably connected to the frame, the driving motor is transmission-connected to the driving shaft, the driving shaft, the first driven shaft, the second driven shaft, and the third driven shaft are sleeved with pulleys, and a belt body is mounted on the pulleys.
[0010] Preferably, the conveyor belt encloses a middle installation space, a collecting bin is provided in the middle installation space, a plurality of support plates are fixedly connected to the upper side of the collecting bin, and the support plates are arranged in parallel along the upper end of the belt body.
[0011] Preferably, a return glue filtering device is installed at the lower part of the frame, and the return glue filtering device includes a receiving hopper, a return pipe is connected to the lower part of the receiving hopper, a filter is arranged above the return pipe, and a discharge valve is installed on the return pipe.
[0012] A glue spraying method is carried out using the above glue spraying machine, and the steps include: S1, material conveying and positioning, the material is conveyed by the conveying device, after the material is conveyed to the top of the glue spraying head, the glue dispensing box is driven to the corresponding height by the lifting drive device; S2, glue spraying, the glue pump pumps the glue liquid to make the glue liquid flow out from the glue spraying hole of the glue spraying head and form a glue line. After the glue line becomes a glue curtain, it descends to the material through the lifting drive device; S3, reset and recycle, use the colloid pump to stop the glue liquid from continuing to flow downward, and collect the glue liquid through the receiving hopper and collection bin.
[0013] Preferably, the glue spraying machine is equipped with a distance sensor for detecting the veneer and a visual detection device for detecting the appearance of the veneer. The visual detection device and the distance sensor are connected to the colloid pump, the conveying device and the lifting drive device through a controller. The visual detection device detects the appearance of the veneer, sets the working distance to the veneer according to the appearance of the veneer, and controls the distance in real time through the distance sensor until the working distance is reached and then starts the colloid pump.
[0014] Preferably, in step S2, if after gluing, the visual inspection device detects that the coverage of the glue surface on the veneer is less than a preset value, the conveying device is controlled to reversely convey and gluing is performed again.
[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. A continuous and uniform glue line can be formed through the glue spraying hole to improve the glue spraying quality. The glue spraying process can accurately control the height and flow of the glue liquid, which improves the uniformity and efficiency of glue spraying. At the same time, the detachable connection structure facilitates the maintenance and replacement of the glue spraying head, increasing the flexibility and service life of the equipment; 2. A guide head for assisting the glue liquid to connect into a line can be detachably connected under the glue spraying hole, which further ensures the continuity and uniformity of the glue liquid forming the glue line and improves the glue spraying quality; 3. A liquid collecting port is arranged above the guide head, and a glue outlet is arranged below the guide head. The liquid collecting port and the glue outlet are connected to form a glue collecting cavity. A grid plate is arranged in the glue collecting cavity to further refine the glue liquid and make it more evenly distributed on the material, thereby improving the glue spraying effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a front structural schematic diagram of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the present invention; Figure 3 is a front structural schematic diagram of the guide head of the present invention; Figure 4 is a schematic diagram of the cross-section structure of the guide head of the present invention; In the attached drawings, 1, frame; 2, conveying device; 21, driving motor; 22, driving shaft; 23, first driven shaft; 24, second driven shaft; 25, third driven shaft; 26, pulley; 27, belt body; 3, lifting connector; 4, installation box; 5, glue dispensing hose; 51, liquid inlet pipe; 52, liquid dispensing hose; 53, connecting pipe; 6, glue dispensing box; 7, glue spraying head; 8, collecting bin; 81, support plate; 9, glue return filtering device; 91, collecting hopper; 92, baffle; 921, mesh; 93, return pipe; 10, guide head; 101, buckle; 102, installation platform; 103, liquid collecting port; 104, glue outlet; 11, grid plate. DETAILED DESCRIPTION
[0017] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention. The directional words mentioned in the following embodiments, such as "up", "down", "left" and "right", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.
[0018] Example 1 like Figure 1-4As shown, a glue spraying machine includes a frame 1, on which a conveying device 2 and an installation box 4 are installed, and the installation box 4 is mounted on the conveying device 2. A lifting drive device is arranged in the installation box 4, and the lifting drive device is driven and connected with a lifting connection member 3. The lower end of the lifting connection member 3 is connected with a glue dispensing box 6 for storing glue liquid, and a colloid pump is installed on the glue dispensing box 6. The bottom of the glue dispensing box 6 is detachably connected with a glue spraying head 7 through a buckle 101, and the glue dispensing box 6 is connected with the glue spraying head 7. The bottom of the glue spraying head 7 is evenly distributed with multiple rows of glue spraying holes, and the glue spraying holes in each row are coaxially arranged at equal intervals, and a continuous and uniform glue line can be formed through the glue spraying holes, thereby improving the glue spraying quality. The glue spraying process can accurately control the height and flow rate of the glue liquid, improve the uniformity and efficiency of the glue spraying, and at the same time, the detachable connection structure facilitates the maintenance and replacement of the glue spraying head 7, and increases the flexibility and service life of the equipment.
[0019] Specifically, the lifting drive device can be a cylinder, and the lifting connection member 3 can be a strip steel plate.
[0020] Furthermore, the glue dispensing box 6 is connected to a glue dispensing pipe 5, which includes a liquid inlet pipe 51, a liquid dispensing pipe 52 and a connecting pipe 53 from top to bottom, and the connecting pipe 53 is connected to the glue dispensing pipe 5; the liquid inlet pipe 51 is centrally arranged and passes upward through the installation box 4, which can play a guiding role and improve the stability of lifting and lowering.
[0021] Furthermore, the conveying device 2 includes a driving motor fixedly connected to the frame 1 and a driving shaft, a first driven shaft 23, a second driven shaft 24, and a third driven shaft 25 rotatably connected to the frame 1. The driving motor is transmission-connected to the driving shaft. The driving shaft, the first driven shaft 23, the second driven shaft 24, and the third driven shaft 25 are sleeved with a pulley 26, and a belt body 27 is mounted on the pulley 26. The conveying device 2 is stable and reliable, can efficiently convey materials, and ensures the continuity of the glue spraying process.
[0022] Furthermore, the conveyor belt is enclosed to form a middle installation space, in which a collection bin 8 is arranged, a collection and discharge pipe is arranged at the bottom of the collection bin 8, and a driving shaft, a first driven shaft 23, a second driven shaft 24, and a third driven shaft 25 are arranged outside the collection bin 8; a plurality of support plates 81 are fixedly connected to the upper side of the collection bin 8, and the support plates 81 are arranged horizontally and parallelly along the upper end of the belt body 27, and the length direction of the support plates 81 is parallel to the conveying direction, which can provide stable support for the veneer and ensure a high degree of smoothness. At the same time, the collection bin 8 can effectively collect excess glue and dropped glue, reduce cleaning work, and improve the cleanliness of the working environment.
[0023] Furthermore, a return glue filtering device 9 is installed at the lower part of the frame 1, and the return glue filtering device 9 includes a receiving hopper 91, a return pipe 93 is connected to the lower part of the receiving hopper 91, a baffle 92 is installed in the receiving hopper 91, the baffle 92 is tilted, a mesh 921 is arranged at the lower corner of the baffle 92, and a filter is arranged above the return pipe 93 to effectively filter out impurities and ensure the quality of the glue liquid. A discharge valve is installed on the return pipe 93, and the return pipe 93 can be connected to the colloid pump through a pipeline to the outside, so as to realize the recycling of the glue liquid and reduce the production cost.
[0024] Example 2 Furthermore, on the basis of Example 1, a guide head 10 for assisting the glue liquid to connect into a line is detachably connected under the glue spraying hole. The guide head 10 can be connected to the glue spraying hole through an elastic buckle 101 or other devices. The guide head 10 can further ensure the continuity and uniformity of the glue liquid in forming the glue line, thereby improving the glue spraying quality.
[0025] Furthermore, a liquid collecting port 103 is provided above the guide head 10, and a glue outlet 104 is provided below the guide head 10. The liquid collecting port 103 and the glue outlet 104 are connected to form a glue collecting chamber. An installation platform 102 is provided in the glue collecting chamber, and a grid plate 11 for uniform glue liquid is placed on the installation platform 102. The grid plate 11 is provided with grid holes, and the width of the grid holes is smaller than the diameter of the glue spraying hole; further, a plurality of installation platforms 102 are provided, and the side walls of the glue collecting chamber are arranged in an arc shape, and the corresponding grid plates 11 gradually decrease in width from top to bottom, and the specifications of the grid holes gradually decrease. The design of the glue collecting chamber helps to concentrate the glue liquid, and the grid plate 11 can further refine the glue liquid so that it is more evenly distributed on the material, thereby improving the uniformity of glue spraying; refining the glue liquid so that it is more evenly distributed on the material improves the glue spraying effect.
[0026] Example 3 A glue coating method is performed using the glue coating machine of Example 2, and the steps include: S1, material conveying and positioning, the material is conveyed by the conveying device 2, and after the material is conveyed to the top of the glue spraying head 7, the glue dispensing box 6 is driven to the corresponding height by the lifting drive device; S2, glue spraying: the colloid pump pumps the glue liquid to make it flow out from the glue spraying hole of the glue spraying head 7 and form a thick glue line. After being converged and homogenized by the glue collecting cavity of the guide head 10 and the grid plate 11 in the glue collecting cavity, the glue line becomes a uniform glue curtain, and then the glue curtain is lowered onto the material through the lifting drive device. This step ensures that the glue liquid can evenly cover the material by precisely controlling the lifting drive device and the colloid pump, thereby improving the accuracy and efficiency of glue spraying.
[0027] S3, reset and recovery, the glue liquid is prevented from continuing to flow downward by the colloid pump, and the glue liquid is collected by the receiving hopper 91 and the collecting bin 8 and filtered and reused.
[0028] Furthermore, the glue spraying machine is equipped with a distance sensor for detecting the veneer and a visual detection device for detecting the appearance of the veneer. The visual detection device and the distance sensor are connected to the colloid pump, the conveying device 2 and the lifting drive device through a controller. The visual detection device detects the appearance of the veneer, sets the working distance with the veneer according to the appearance of the veneer, and controls the distance in real time through the distance sensor until the working distance is reached before starting the colloid pump. This design realizes the intelligence and automation of the glue spraying process through automatic detection and control, and improves production efficiency and product quality.
[0029] In step S2, if the coverage of the glue surface on the veneer detected by the visual inspection device is less than a preset value after the glue is applied, the conveying device 2 is controlled to reversely convey and apply glue again. This step ensures the integrity and uniformity of the glue application, avoids quality problems caused by insufficient glue, and improves the qualified rate of the product.
[0030] Furthermore, a glue circulation system is provided between the glue dispensing box 6 and the return pipe 93, and unused glue is sent back to the glue dispensing box 6 by a circulation pump to avoid glue waste. At the same time, a filter is provided in the glue circulation system to remove impurities and bubbles in the glue to ensure glue spraying quality.
[0031] Furthermore, an intelligent control system is provided to record various parameters and data during the glue spraying process, such as glue liquid flow, glue spraying speed, lifting height, etc. The recorded data can be analyzed and processed by data analysis software to optimize glue spraying parameters and improve production efficiency.
Claims
1. A glue spraying machine, characterized in that: The invention comprises a frame (1), on which a conveying device (2) and an installation box (4) are installed, the installation box (4) is mounted on the conveying device (2), a lifting drive device is arranged in the installation box (4), the lifting drive device is drivingly connected to a lifting connection member (3), the lower end of the lifting connection member (3) is connected to a glue dispensing box (6) for storing glue liquid, a colloid pump is installed on the glue dispensing box (6), a glue spraying head (7) is detachably connected at the bottom of the glue dispensing box (6), the glue dispensing box (6) is connected to the glue spraying head (7), and a plurality of rows of glue spraying holes are evenly distributed at the bottom of the glue spraying head (7).
2. The glue spraying machine according to claim 1, characterized in that: A flow guide head (10) for assisting the glue liquid to be connected into a line is detachably connected under the glue spraying hole.
3. The glue spraying machine according to claim 2, characterized in that: A liquid collecting port (103) is provided above the flow guide head (10), and a glue outlet (104) is provided below the flow guide head (10); the liquid collecting port (103) and the glue outlet (104) are connected to form a glue collecting cavity.
4. The glue spraying machine according to claim 3, characterized in that: A grid plate (11) for uniformly distributing the glue liquid is installed in the glue collecting chamber, and grid holes are arranged on the grid plate (11), wherein the width of the grid holes is smaller than the diameter of the glue spraying hole.
5. The glue spraying machine according to claim 1, characterized in that: The conveying device (2) comprises a driving motor and a driving shaft, a first driven shaft (23), a second driven shaft (24), and a third driven shaft (25) which are rotatably connected to the frame (1); the driving motor is drivingly connected to the driving shaft; the driving shaft, the first driven shaft (23), the second driven shaft (24), and the third driven shaft (25) are sleeved with pulleys (26); and a belt body (27) is matched and mounted on the pulleys (26).
6. The glue spraying machine according to claim 5, characterized in that: The conveyor belt encloses a central installation space, a collecting bin (8) is provided in the central installation space, a plurality of support plates (81) are fixedly connected to the upper side of the collecting bin (8), and the support plates (81) are arranged in parallel along the upper end of the belt body (27).
7. The glue spraying machine according to claim 1, characterized in that: A return glue filtering device (9) is installed at the lower part of the frame (1), and the return glue filtering device (9) comprises a receiving hopper (91), a return material pipe (93) (91) is connected to the lower part of the receiving hopper (91), a filter screen is arranged above the return material pipe (93) (91), and a discharge valve is installed on the return material pipe (93) (91).
8. A glue spraying method, characterized in that: Using the glue spraying machine as claimed in claim 1, the steps include: S1, material conveying positioning, conveying the material through the conveying device (2), after the material is conveyed to the top of the glue spraying head (7), the glue dispensing box (6) is driven to a corresponding height through the lifting drive device; S2, glue spraying, the glue pump pumps the glue liquid so that the glue liquid flows out from the glue spraying hole of the glue spraying head (7) and forms a glue line. After the glue line becomes a glue curtain, it is lowered onto the material through the lifting drive device; S3, resetting and recycling, using the colloid pump to stop the glue liquid from continuing to flow downward, and collecting the glue liquid through the receiving hopper (91) and the collecting bin (8).
9. The glue spraying method according to claim 8, characterized in that: The glue spraying machine is equipped with a distance sensor for detecting the veneer and a visual detection device for detecting the appearance of the veneer. The visual detection device and the distance sensor are connected to the colloid pump, the conveying device (2) and the lifting drive device through a controller. The visual detection device detects the appearance of the veneer, sets the working distance with the veneer according to the appearance of the veneer, and controls the distance in real time through the distance sensor until the working distance is reached and then starts the colloid pump.
10. The glue spraying method according to claim 9, characterized in that: In step S2, if after gluing, the visual detection device detects that the coverage of the glue surface on the veneer is less than a preset value, the conveying device (2) is controlled to convey in the reverse direction to perform gluing again.