Automatic correction mechanism for gun head of glue coating machine

Abstract

The utility model discloses an automatic correction mechanism for a glue coating machine gun head, which includes a base plate, an adapter plate arranged on the base plate, and a detection fixing plate slidably assembled on the adapter plate; a contact sensor suitable for contacting the glue nozzle gun head is horizontally installed at one end of the detection fixing plate, the detection fixing plate and the adapter plate are connected by a tension spring, and one end of the adapter plate is also provided with a fixed end screw for limiting the detection fixing plate, the end of the tension spring close to the contact sensor is connected to the fixed end screw and the other end away from the contact sensor is connected to the detection fixing plate, and the detection fixing plate is in a stationary state when the glue nozzle gun head contacts the contact sensor. The utility model can help to automatically compensate for the deflection parameters after each replacement of the gun head, improve production efficiency, and ensure the safety of the gun head.

Description

Technical Field

[0001] The utility model relates to the technical field of glue coating machine equipment, in particular to an automatic correction mechanism for a glue coating machine gun head. Background Art

[0002] In the field of glue coating equipment, in order to achieve uniform mixing of glue, existing glue coating machines usually use a long mixing tube + mixing core + gun head structure with a length of 300-400mm. Therefore, the overall structure is long and has many connections. In addition, the consistency of the gun head is insufficient, resulting in large cumulative errors at the gun head after each disassembly and assembly, left and right deflection, and lateral deviation of about 0.5-2mm. Since the mixing core needs to be replaced every shift, the gun head is prone to deflection and deviation after each replacement, which sometimes affects the gluing trajectory or even crashes the machine. Therefore, it is necessary to manually confirm the new position of the gun head and adjust the parameters each time, but the manual operation process is cumbersome and prone to errors, which delays working hours and affects the overall efficiency and yield. In addition, the origin zero reset mechanism in the current automated machine can only ensure the accuracy of the glue dispensing position of the glue coating machine, and cannot solve the error caused by the deflection of the gun head. Moreover, the gun head is relatively fragile. According to the speed of the machine movement, the lack of a flexible buffer structure cannot guarantee the safety of each calibration. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an automatic correction mechanism for a gun head of a glue coating machine, which can help to automatically compensate for the deflection parameters after each replacement of the gun head, thereby improving production efficiency and ensuring the safety of the gun head.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] An automatic correction mechanism for a gun head of a glue coating machine comprises a bottom plate, an adapter plate arranged on the bottom plate, and a detection fixing plate slidably assembled on the adapter plate;

[0006] A contact sensor suitable for contacting the nozzle gun tip is horizontally installed at one end of the detection fixing plate, and the detection fixing plate is connected to the adapter plate by a tension spring. A fixed end screw for limiting the detection fixing plate is also provided at one end of the adapter plate. One end of the tension spring close to the contact sensor is connected to the fixed end screw and the other end away from the contact sensor is connected to the detection fixing plate. The detection fixing plate is in a stationary state when the nozzle gun tip contacts the contact sensor.

[0007] Furthermore, an avoidance hole is provided on the detection fixing plate, and the fixed end screw passes through the avoidance hole and forms a one-way limit for the detection fixing plate.

[0008] Furthermore, the contact sensor has an elastic contact, and the initial elastic force of the tension spring is more than twenty times the elastic force of the contact.

[0009] Furthermore, the initial elastic force of the tension spring is less than one twentieth of the moving force of the nozzle gun head.

[0010] Furthermore, a movable end screw is provided at one end of the detection fixing plate away from the contact sensor, and one end of the tension spring away from the fixed end screw is connected to the movable end screw.

[0011] Furthermore, a slide rail is provided on the adapter plate, a slider is provided at the bottom of the detection fixing plate, and the slider is slidably assembled on the slide rail.

[0012] Furthermore, the bottom plate is provided with a plurality of rows of installation and adjustment holes.

[0013] Furthermore, the detection fixing plate is in an L shape.

[0014] By adopting the above technical solution, the utility model has the following beneficial effects:

[0015] 1. The utility model combines components such as a bottom plate, an adapter plate, a detection and fixing plate, a tension spring, and a contact sensor, so that it can be directly installed inside the machine to assist in calibrating the deflection error. The design of the contact sensor can directly contact the side wall of the nozzle gun head, and then provide feedback to the machine transfer mechanism to assist it in parameter compensation for the offset. No human intervention is required, and automatic operation can be achieved, thereby improving overall production efficiency and yield rate. At the same time, through the design of the tension spring, one end is connected to the fixed end screw and the other end is connected to the detection and fixing plate to achieve a buffering effect, prevent the nozzle gun head from moving over, and protect the safety of the nozzle gun head; and the tension spring is small in size, low in cost, and does not occupy volume with the overall structure, so it is convenient to install and use inside the machine without affecting the internal space of the machine.

[0016] 2. The utility model adopts a tension spring as a buffer structure, and combines the fixed end screw to limit the detection fixing plate in one direction. In addition to reducing the size of the overall structure, it can also facilitate the soft fixing of the detection fixing plate, that is, the initial elastic force of the tension spring can easily be much greater than the contact elastic force of the contact sensor, thereby ensuring that the nozzle gun head does not push the detection fixing plate when it contacts the contact, and the detection fixing plate is in a static state, thereby ensuring the accuracy of the contact sensing point and the final calibration. At the same time, the soft fixation of the detection fixing plate is not completely fixed, and the initial elastic force of the tension spring can easily be much smaller than the moving force of the nozzle gun head, that is, when the nozzle gun head is over-impacted, the detection fixing plate can easily overcome the initial elastic force of the tension spring and perform a buffering sliding action to ensure the safety of the nozzle gun head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 It is a side view schematic diagram of an embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the use state of an embodiment of the utility model;

[0020] Figure 4 for Figure 3 A schematic side view of the structure in FIG.

[0021] Among them, 1. bottom plate; 2. adapter plate; 3. detection fixing plate; 30. avoidance hole; 4. contact sensor; 40. contact; 5. fixed end screw; 6. movable end screw; 7. tension spring; 8. slide rail; 9. slider; 10. glue coating machine; 11. mixing tube sheath; 12. glue nozzle gun head; 100. installation adjustment hole. DETAILED DESCRIPTION

[0022] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0023] like Figure 1-4 As shown, in the present embodiment, there is provided an automatic correction mechanism for the gun head of a glue coating machine, which is mainly composed of a base plate 1, an adapter plate 2, a detection and fixing plate 3, a contact sensor 4, a tension spring 7 and other components. Among them, the base plate 1 is in the shape of a long strip, the adapter plate 2 is fixed on the base plate 1 by screws, the detection and fixing plate 3 is in the shape of an L and is slidably assembled on the adapter plate 2; the contact sensor 4 is transversely installed on the short side of the detection and fixing plate 3 through its own thread and nut, the contact sensor 4 can adopt the MT-M series precision contact sensor, the contact sensor 4 has an elastic contact 40, and different series of models and styles can be selected according to different needs; at the same time, a strip-shaped avoidance hole 30 is opened on the detection and fixing plate 3, and a fixed end screw 5 is installed at one end of the adapter plate 2, and the fixed end The screw 5 passes through the avoidance hole 30 and forms a one-way limit for the detection fixing plate 3, that is, the detection fixing plate 3 cannot slide in the direction of the contact sensor 4. A movable end screw 6 is also fixed to the end of the detection fixing plate 3 away from the contact sensor 4. A tension spring 7 is arranged on the detection fixing plate 3, and the end of the tension spring 7 close to the contact sensor 4 is connected to the fixed end screw 5, and the end of the tension spring 7 away from the fixed end screw 5 is connected to the movable end screw 6. In this way, the tension spring 7 can form a buffering effect on the detection fixing plate 3, and combined with the fixed end screw 5, it can also form a soft fixing effect on the detection fixing plate 3.

[0024] refer to Figure 3 , Figure 4state. Under normal circumstances, the transfer mechanism in the machine is equipped with the glue coating machine 10. The mixing tube sheath 11 and the glue nozzle gun head 12 below the glue coating machine 10 are relatively long. Each time the glue nozzle gun head 12 is replaced, there may be a problem of deflection, that is, there will be a lateral error in the glue coating point. The existing manual correction operation is inconvenient and too troublesome. In addition, the zeroing calibration structure of the machine itself can only target the position of the glue coating machine 10 itself, that is, the position on a vertical line, so it is not possible to quickly and conveniently calibrate the offset glue point of the glue nozzle gun head 12. Therefore, when the present embodiment is in use, the present embodiment can be directly installed inside the machine, which is equivalent to adding a direct calibration structure for the glue nozzle gun head 12. When installed, the contact 40 of the contact sensor 4 faces inward to the glue nozzle gun head 12, because the direct contact between the glue nozzle gun head 12 and the contact sensor 4 can easily compensate and calibrate the lateral error of the glue nozzle gun head 12. The specific principle can refer to the zeroing calibration of the machine itself or the reset calibration of the zero position sensor to the structure. After each replacement of the mixing tube sheath 11 and the nozzle gun head 12, the transfer mechanism will control the movement of the glue coating machine 10 and drive the nozzle gun head 12 to slowly approach the contact 40 of the contact sensor 4. When the nozzle gun head 12 contacts the contact 40, the induction light of the contact sensor 4 lights up and can promptly feedback the signal to the transfer mechanism. The transfer mechanism can quickly stop the action for parameter compensation calibration. Of course, the glue path trajectory can be manually checked at regular intervals, and used as the origin of the nozzle gun head 12 during the first calibration to ensure that the first reference position is accurate. Each subsequent replacement of the mixing tube sheath 11 and the nozzle gun head 12 will automatically perform a calibration operation. This structure is equivalent to adding a position calibration of the glue nozzle head 12 on the basis of the original zero-position calibration of the glue coating machine 10. The design of the contact sensor 4 can directly contact the side wall of the glue nozzle head 12, and then feed back to the machine transfer mechanism to assist it in compensating for the offset parameters. No human intervention is required, and automatic operation can be achieved, thereby improving the overall production efficiency and yield rate.

[0025] In addition, the present embodiment adopts the design of the tension spring 7, one end of which is connected to the fixed end screw 5 and the other end is connected to the movable end screw 6, so as to achieve a buffering effect, prevent the nozzle gun head 12 from overshooting, and protect the safety of the nozzle gun head 12; and the tension spring 7 is small in size and low in cost, and does not occupy volume when combined with the overall structure, so it is convenient to install and use inside the machine without affecting the internal space of the machine.

[0026] It is worth mentioning that the initial elastic force of the tension spring 7 in this embodiment exceeds twenty times the elastic force of the contact 40, that is, the initial elastic force of the tension spring 7 is much greater than the elastic force of the contact 40; the initial elastic force of the tension spring 7 in this embodiment is less than one twentieth of the moving force of the nozzle gun head 12, that is, the initial elastic force of the tension spring 7 is much less than the moving force of the nozzle gun head 12. This embodiment uses the tension spring 7 as a buffer structure, combined with the fixed end screw 5 to perform one-way limit on the detection fixing plate 3, which can easily form a soft fixation effect on the detection fixing plate 3, because the initial elastic force of the tension spring 7 can easily be much greater than the elastic force of the contact 40 of the contact sensor 4, thereby ensuring that the nozzle gun head 12 does not push the detection fixing plate 3 when it contacts the contact 40, and the detection fixing plate 3 is equivalent to being in a static state, thereby ensuring the accuracy of the contact sensing point and the final calibration. At the same time, the soft fixation of the detection fixing plate 3 is not completely fixed, because the initial elastic force of the tension spring 7 can be easily much smaller than the moving force of the nozzle gun head 12, that is, when the nozzle gun head 12 is over-impacted, the detection fixing plate 3 can easily overcome the initial elastic force of the tension spring 7 and perform a buffering sliding action to ensure the safety of the nozzle gun head 12. Therefore, under the premise of not affecting the internal space of the machine, this embodiment can assist the transfer mechanism to compensate for the parameters of the nozzle gun head deviation after installation, and can also ensure the safety performance of the nozzle gun head.

[0027] In order to ensure the sliding stability of the detection fixing plate 3, in this embodiment, a slide rail 8 is provided on the adapter plate 2, and a slider 9 is installed at the bottom of the detection fixing plate 3. The sliding assembly of the detection fixing plate 3 can be realized by sliding the slider 9 on the slide rail 8. In addition, in order to adjust the position of the contact sensor 4 according to various machine mechanisms, in this embodiment, multiple rows of installation adjustment holes 100 are opened on the bottom plate 1, which facilitates the overall migration and adjustment of the components above the adapter plate 2.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The above specific embodiments further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic correction mechanism for a glue coating machine gun head, characterized in that: It comprises a base plate (1), an adapter plate (2) arranged on the base plate (1), and a detection fixing plate (3) slidably mounted on the adapter plate (2); A contact sensor (4) suitable for contacting a nozzle tip is laterally mounted on one end of the detection fixing plate (3); the detection fixing plate (3) is connected to the adapter plate (2) via a tension spring (7); a fixed end screw (5) for limiting the detection fixing plate (3) is also arranged at one end of the adapter plate (2); one end of the tension spring (7) close to the contact sensor (4) is connected to the fixed end screw (5) and the other end away from the contact sensor (4) is connected to the detection fixing plate (3); the detection fixing plate (3) is in a stationary state when the nozzle tip contacts the contact sensor (4).

2. The automatic correction mechanism for the gun head of a glue coating machine according to claim 1 is characterized by: The detection fixing plate (3) is provided with an avoidance hole (30), and the fixed end screw (5) passes through the avoidance hole (30) and forms a one-way limit for the detection fixing plate (3).

3. The automatic correction mechanism for the gun head of a glue coating machine according to claim 1 is characterized in that: The contact sensor (4) has an elastic contact (40), and the initial elastic force of the tension spring (7) exceeds twenty times the elastic force of the contact (40).

4. The automatic correction mechanism for the gun head of a glue coating machine according to claim 3 is characterized by: The initial elastic force of the tension spring (7) is less than one twentieth of the moving force of the nozzle gun head.

5. The automatic correction mechanism for the gun head of a glue coating machine according to claim 1 is characterized by: A movable end screw (6) is provided at one end of the detection fixing plate (3) away from the contact sensor (4), and one end of the tension spring (7) away from the fixed end screw (5) is connected to the movable end screw (6).

6. The automatic correction mechanism for the gun head of a glue coating machine according to claim 1, characterized in that: A slide rail (8) is provided on the adapter plate (2), a slider (9) is provided at the bottom of the detection fixing plate (3), and the slider (9) is slidably mounted on the slide rail (8).

7. The automatic correction mechanism for the gun head of a glue coating machine according to claim 1 is characterized by: The bottom plate (1) is provided with a plurality of rows of mounting adjustment holes (100).

8. The automatic correction mechanism for the gun head of a glue coating machine according to claim 1 is characterized by: The detection fixing plate (3) is in an L shape.

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