Automatic gluing device of photo frame corner splicing machine

Abstract

The utility model relates to the technical field of automatic glueing of photo frame splicing, disclose a kind of automatic glueing device of photo frame corner splicing machine, the fixed support, the front side of the fixed support is slidably connected with glue injection adjusting mechanism, the bottom of the glue injection adjusting mechanism is fixedly connected with glue chamber small storehouse, the outside of the glue chamber small storehouse is fixedly connected with glueing mechanism, the glue injection adjusting mechanism includes glue dispensing valve, the outside of the glue dispensing valve is rotatably connected with air passage hole one, the outside of the glue dispensing valve is rotatably connected with air passage hole two, the top of the glue dispensing valve is fixedly connected with micrometer glue injection appropriator, the rear side of the glue dispensing valve is fixedly connected with power component.In the utility model, by manually rotating adjusting micrometer glue injection appropriator, the output size of corner pyramid is controlled, so that the device is in glue drop mode or glue spraying mode, and the photo frame is glued, so as to improve the glueing efficiency, and the device changes the problem that traditional corner nail is only used and unstable.

Description

Technical Field

[0001] This utility model relates to the field of automatic glue application technology for picture frame splicing, and in particular to an automatic glue application device for a picture frame corner splicing machine. Background Technology

[0002] The automatic glue applicator of the picture frame corner splicing machine is a device that works in conjunction with the corner splicing process. Through a glue tank, glue delivery pipeline, glue nozzle and control system, it can automatically and accurately control the amount of glue and the timing of glue application at the splicing position of the picture frame corner to complete the glue application operation.

[0003] When the picture frame workpiece is transported to the corner splicing station, the position sensor detects the workpiece's arrival signal and transmits it to the control system. Based on preset parameters such as glue amount and glue application path, the control system drives the glue delivery mechanism to press the glue in the glue bucket through the pipeline to the glue application nozzle. The glue application nozzle completes precise glue application on the splicing surface of the corner of the picture frame according to the set trajectory. After the glue application is completed, the sensor sends back a completion signal, and the device resets to wait for the next workpiece, thus realizing the automated cycle of the glue application process.

[0004] In existing technologies, picture frames typically require corner cutting and splicing during assembly. The assembled frames must be sturdy and not loose. This is usually achieved using glue and corner nails. A frame has eight corners, and irregularly shaped frames require even more corners to be glued, which slows down production efficiency. If the glue is not used properly, it can overflow after splicing and be difficult to clean. Corner nails can also be used for fixing, but this can sometimes cause the frame to become loose and unstable. Therefore, an automatic glue application device for a picture frame corner splicing machine is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an automatic glue applicator for a picture frame corner splicing machine, which aims to improve the problem that if the glue application is not controlled properly during the assembly of picture frames, it will overflow after the corners are spliced ​​and be difficult to clean.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic glue applicator for a picture frame corner splicing machine includes a fixed bracket, a glue injection adjustment mechanism slidably connected to the front side of the fixed bracket, a glue chamber fixedly connected to the bottom of the glue injection adjustment mechanism, and a glue applicator fixedly connected to the outside of the glue chamber.

[0008] The glue dispensing adjustment mechanism includes a glue dispensing valve, an air passage hole one is rotatably connected to the outside of the glue dispensing valve, an air passage hole two is rotatably connected to the outside of the glue dispensing valve, a micrometer glue dispensing applicator is fixedly connected to the top of the glue dispensing valve, and a power assembly is fixedly connected to the rear side of the glue dispensing valve.

[0009] As a further description of the above technical solution:

[0010] The power assembly includes a cylindrical cylinder, the drive end of which is fixedly connected to a fixed plate, and the rear side of the fixed plate is fixedly connected to a slide rail.

[0011] As a further description of the above technical solution:

[0012] The rear side of the slide rail is fixedly connected to the front side of the fixed bracket, and the outer side of the cylindrical cylinder is slidably connected to the inside of the fixed bracket.

[0013] As a further description of the above technical solution:

[0014] The rear side of the dispensing valve is fixedly connected to the front side of the fixing plate, and the surface of the micrometer dispensing applicator is fixedly connected with an adjustable micrometer scale.

[0015] As a further description of the above technical solution:

[0016] The glue dispensing mechanism includes a glue quantity adjusting screw, two connecting rods are fixedly connected to the top of each glue chamber, a glue injection nozzle is threaded to the bottom of each glue chamber, a glue dispensing needle is fixedly connected inside the glue injection nozzle, and a glue delivery assembly is fixedly connected to the left side of each glue chamber.

[0017] As a further description of the above technical solution:

[0018] The glue dispensing assembly includes a glue inlet, a glue dispensing pipe is fixedly connected inside the glue inlet, a pressure glue storage tank is fixedly connected to the other end of the glue dispensing pipe, and a glue tank rack is fixedly connected to the bottom of the pressure glue storage tank.

[0019] As a further description of the above technical solution:

[0020] The external thread of the glue quantity adjusting screw is connected to the inside of the glue chamber, and the right side of the glue inlet is rotatably connected to the left side of the glue chamber;

[0021] As a further description of the above technical solution:

[0022] The front side of the glue bucket frame is fixedly connected to the rear side of the fixed bracket, and the top of the glue quantity adjusting screw is slidably connected inside the dispensing valve.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the micrometer glue applicator is manually rotated and adjusted, causing the glue applicator to drive the glue quantity adjustment screw, thereby adjusting the internal gap of the glue nozzle and controlling the output size of the cone. The device can apply glue to the picture frame by dripping or spraying glue. The glue head can also be set according to various irregularly shaped picture frame strips. After the glue applicator finishes dripping glue on one frame strip, the cylindrical cylinder will retract the glue applicator upwards. After the second frame strip reaches the position, it will slide down again to start dripping glue, and the cycle will continue. This greatly improves the glue application efficiency and solves the problem of instability caused by traditional corner nails.

[0025] 2. In this utility model, by adding air pressure to the pressure storage tank, the glue is pushed from the pressure storage tank through the glue delivery pipe to the glue chamber. When the glue dispensing device is pressed down, the dispensing valve is opened by the pneumatic action. At this time, the glue enters the glue dispensing nozzle with the pressure provided by the dispensing valve, causing the glue dispensing needle to drip glue, thereby dripping the glue onto the cut surface of the frame strip. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an automatic glue applicator for a picture frame corner splicing machine proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the pressure storage tank of an automatic glue dispensing device for a picture frame corner splicing machine proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the dispensing valve of an automatic glue applicator for a picture frame corner splicing machine proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the glue amount adjustment screw of the automatic glue applicator for a picture frame corner splicing machine proposed in this utility model.

[0030] Legend:

[0031] 1. Fixed bracket; 2. Glue injection adjustment mechanism; 21. Glue dispensing valve; 22. Air passage hole one; 23. Air passage hole two; 24. Micrometer glue dispensing applicator; 25. Power assembly; 251. Cylindrical cylinder; 252. Fixed plate; 253. Slide rail; 3. Glue chamber; 4. Glue dispensing mechanism; 41. Glue quantity adjusting screw; 42. Connecting rod; 43. Glue injection nozzle; 44. Glue dispensing needle; 45. Glue delivery assembly; 451. Glue inlet; 452. Glue delivery tube; 453. Pressure glue storage tank; 454. Glue tank rack; 5. Micrometer adjustable scale. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 and Figure 2 This utility model provides an embodiment of an automatic glue applicator for a picture frame corner splicing machine, comprising a fixed bracket 1, which serves as the mounting base for the device and provides support for various components. A glue injection adjustment mechanism 2 is slidably connected to the front side of the fixed bracket 1. By sliding the glue injection adjustment mechanism 2 on the fixed bracket 1, the horizontal adjustment of the glue application position can be achieved. A glue chamber 3 is fixedly connected to the bottom of the glue injection adjustment mechanism 2. The glue delivered by the glue injection adjustment mechanism 2 is first stored in the glue chamber 3. The glue chamber 3 can stabilize the glue pressure and ensure uniform glue application. A glue application mechanism 4 is fixedly connected to the outside of the glue chamber 3. The glue in the glue chamber 3 is applied to the splicing area of ​​the picture frame through the glue application mechanism 4 to complete the glue application action.

[0034] The glue dispensing adjustment mechanism 2 includes a dispensing valve 21, which is a component that controls the flow of glue. The dispensing valve 21 is externally rotatably connected to an air passage 22, which is connected to compressed air. The change in air pressure drives the movement of the valve core inside the dispensing valve 21, and the opening and closing of the valve core controls the start of glue dispensing. The dispensing valve 21 is externally rotatably connected to an air passage 23, which can adjust the air pressure. The strength of the air pressure drives the action of the flow control component inside the dispensing valve 21.

[0035] A micrometer glue applicator 24 is fixedly connected to the top of the glue dispensing valve 21. Turning the scale knob of the micrometer glue applicator 24 will cause the internal push rod to extend and retract, which in turn pushes the glue volume control structure inside the glue dispensing valve 21 to achieve the purpose of setting the glue volume for a single application, so as to meet the glue requirements of different thickness picture frame frames. A power component 25 is fixedly connected to the rear side of the glue dispensing valve 21. The power component 25 provides power for the movement of the glue dispensing adjustment mechanism 2.

[0036] The power assembly 25 includes a cylindrical cylinder 251, which is the power output source. A fixed plate 252 is fixedly connected to the bottom of the cylindrical cylinder 251. When the piston rod of the cylindrical cylinder 251 extends or retracts, it drives the fixed plate 252 to move. Through the fixed connection between the fixed plate 252 and the dispensing valve 21, the entire dispensing adjustment mechanism 2 is moved. A slide rail 253 is fixedly connected to the rear side of the fixed plate 252. When the fixed plate 252 moves, it slides along the slide rail 253. The slide rail 253 guides and limits the movement of the fixed plate 252. Through sliding cooperation, the dispensing adjustment mechanism 2 is moved horizontally, ensuring the accuracy of the dispensing position.

[0037] Reference Figure 3 and Figure 4 The glue dispensing mechanism 4 includes a glue quantity adjusting screw 41. Rotating the glue quantity adjusting screw 41 causes the conical valve core at its bottom to move up and down along the glue outlet channel of the glue chamber 3. By changing the gap between the valve core and the channel, the amount of glue flowing out of the glue chamber 3 is controlled, adapting to the glue requirements of different widths of splicing seams. Two connecting rods 42 are fixedly connected to the top of each glue chamber 3. One end of the connecting rod 42 is fixed to the glue chamber 3, and the other end is connected to the bottom of the glue dispensing adjusting mechanism 2. A glue dispensing nozzle 43 is threadedly connected to the bottom of the glue chamber 3. Glue in the glue chamber 3 flows into the glue dispensing nozzle 43 under pressure. The glue dispensing nozzle 43 is connected to the glue chamber 3 via a threaded structure. 3. A tight connection is established, which facilitates the transfer of glue from the chamber to the dispensing end. A glue dispensing needle 44 is fixedly connected inside the glue dispensing nozzle 43. The glue collected by the glue dispensing nozzle 43 flows into the glue dispensing needle 44. The small aperture of the needle further constrains the flow rate and shape of the glue, causing the glue to be output in a linear or dotted form. Then, by aligning the needle with the splicing surface of the picture frame, the glue is applied without deviation. A glue delivery component 45 is fixedly connected to the left side of the glue chamber 3. The glue delivery component 45 is connected to the glue chamber 3 through a pipe to continuously deliver glue to it, thereby maintaining a stable glue reserve in the glue chamber 3. Through uninterrupted glue supply, the glue interruption during the glue application process is avoided.

[0038] The glue delivery assembly 45 includes a glue inlet 451, which is connected to the left side wall of the glue chamber 3. Externally supplied glue enters the glue chamber 3 through the glue inlet 451. The flared structure of the glue inlet 451 guides the glue flow, ensuring a smooth entry into the chamber. By adapting to the internal flow channels of the chamber, it reduces glue delivery resistance. A glue delivery pipe 452 is fixedly connected inside the glue inlet 451. The glue delivery pipe 452 is a flexible pipe that can bend as the glue chamber 3 moves. The pressure difference inside the pipe drives the glue to flow from the source towards the glue inlet 451. Through the sealed pipe structure, it achieves... To prevent glue leakage, a pressure storage tank 453 is fixedly connected to the other end of the glue delivery pipe 452. The air pressure inside the pressure storage tank 453 pushes the glue inside the tank into the glue delivery pipe 452. By adjusting the air pressure inside the tank, the glue is driven to be delivered along the glue delivery pipe 452 at different flow rates. Through pressure output, the purpose of ensuring uniform glue delivery is achieved. A glue tank frame 454 is fixedly connected to the bottom of the pressure storage tank 453. The glue tank frame 454 is fixed to the equipment frame by bolts, providing support for the pressure storage tank 453 and keeping the storage tank in a vertical position, thereby preventing the storage tank from tipping over or shifting.

[0039] Reference Figures 2 to 4 The rear side of the slide rail 253 is fixedly connected to the front side of the fixed bracket 1, providing a stable guide reference for the movement of the fixed plate 252. When the cylindrical cylinder 251 extends or retracts, its outer side slides along the inner sliding groove of the fixed bracket 1. The linear motion of the cylinder drives the fixed plate 252 to move along the slide rail 253. Through the fixed relationship between the slide rail 253 and the fixed bracket 1 and the sliding constraint of the cylinder, the overall movement trajectory of the glue injection adjustment mechanism 2 is ensured to be accurate and without deviation.

[0040] The rear side of the dispensing valve 21 is fixedly connected to the front side of the fixing plate 252. The movement of the fixing plate 252 will directly drive the dispensing valve 21 to move, thereby adjusting the overall position of the glue dispensing mechanism 4 to fit the corners of the picture frame. The surface of the micrometer glue dispensing applicator 24 is fixedly connected to the micrometer adjustable scale 5. When the micrometer glue dispensing applicator 24 is rotated, the scale will display the adjustment amount. The numerical feedback of the scale will drive the operator to control the adjustment range. Through the quantitative scale indication, the effect of setting the amount of glue dispensed at one time can be achieved to meet the bonding needs of picture frames of different thicknesses.

[0041] The external thread of the glue quantity adjusting screw 41 is connected to the inside of the glue chamber 3. When the glue quantity adjusting screw 41 is rotated, it moves along the axial direction of the glue chamber 3 through thread engagement. The right side of the glue inlet 451 is rotatably connected to the left side of the glue chamber 3. The glue inlet 451 can rotate around the connection point. By rotating, the direction of the glue delivery tube 452 is adjusted to avoid the tube twisting and obstructing the glue flow. Through angle adaptation, the effect of smooth delivery of glue from the glue delivery component 45 to the glue chamber 3 is achieved.

[0042] The front side of the glue bucket frame 454 is fixedly connected to the rear side of the fixed bracket 1. The glue bucket frame 454 forms an integral structure with the fixed bracket 1 by welding or bolting, providing stable support for the pressure glue storage tank 453 and keeping the glue storage tank in an upright state. This achieves the effect of preventing the glue storage tank from tipping over and ensuring the stable operation of the glue supply system. The top of the glue quantity adjusting screw 41 is slidably connected to the inside of the glue dispensing valve 21. The opening and closing action of the glue dispensing valve 21 will drive the glue quantity adjusting screw 41 to produce a slight displacement through the sliding connection. Through the coordinated action of the two, the output quantity can be finely adjusted simultaneously while controlling the glue flow and avoiding excessive glue quantity at any moment.

[0043] Working principle: When the device is started, after the frame strip is conveyed to the bottom of the dispensing device, the sensing device will push the dispensing device with the cylindrical cylinder 251 at the top of the dispensing device, causing the dispensing device to press down. At this time, air pressure is added to the pressure storage tank 453, and the glue is pushed from the pressure storage tank 453 through the glue delivery pipe 452 to the glue chamber 3. When the dispensing device is pressed down, the dispensing valve 21 is opened by the pneumatic action. At this time, the glue enters the dispensing nozzle 43 with the pressure provided by the dispensing valve 21, causing the dispensing needle 44 to dispense glue, so that the glue is dripped onto the cut surface on the frame strip.

[0044] When it is necessary to adjust the glue output size, the micrometer glue applicator 24 can be manually rotated to drive the glue quantity adjustment screw 41, which in turn adjusts the internal clearance of the glue nozzle 43, thereby controlling the output size of the cone. This allows the device to apply glue to the frame by dripping or spraying. The glue nozzle can also be set according to various irregularly shaped frame strips. After the glue applicator finishes dripping on one frame strip, the cylindrical cylinder 251 will retract the glue applicator upwards. After the second frame strip reaches the position, it will slide down again to start dripping glue, and the cycle will continue. This greatly improves the glue application efficiency and solves the problem of instability caused by traditional corner nails.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic glue-applying device for a picture frame corner splicing machine, comprising a fixed bracket (1), characterized in that: The front side of the fixed bracket (1) is slidably connected to the glue injection adjustment mechanism (2), the bottom of the glue injection adjustment mechanism (2) is fixedly connected to the glue chamber (3), and the outside of the glue chamber (3) is fixedly connected to the glue applicator (4). The glue dispensing adjustment mechanism (2) includes a glue dispensing valve (21), an air passage hole one (22) is rotatably connected to the outside of the glue dispensing valve (21), an air passage hole two (23) is rotatably connected to the outside of the glue dispensing valve (21), a micrometer glue dispensing applicator (24) is fixedly connected to the top of the glue dispensing valve (21), and a power assembly (25) is fixedly connected to the rear side of the glue dispensing valve (21).

2. The automatic glue-applying device for a picture frame corner splicing machine according to claim 1, characterized in that: The power assembly (25) includes a cylindrical cylinder (251), the drive end of which is fixedly connected to a fixing plate (252), and the rear side of the fixing plate (252) is fixedly connected to a slide rail (253).

3. The automatic glue-applying device for a picture frame corner splicing machine according to claim 2, characterized in that: The rear side of the slide rail (253) is fixedly connected to the front side of the fixed bracket (1), and the outer side of the cylindrical cylinder (251) is slidably connected to the inside of the fixed bracket (1).

4. The automatic glue-applying device for a picture frame corner splicing machine according to claim 3, characterized in that: The rear side of the dispensing valve (21) is fixedly connected to the front side of the fixing plate (252), and the surface of the micrometer dispensing applicator (24) is fixedly connected with an adjustable micrometer scale (5).

5. The automatic glue-applying device for a picture frame corner splicing machine according to claim 1, characterized in that: The glue dispensing mechanism (4) includes a glue quantity adjusting screw (41), two connecting rods (42) are fixedly connected to the top of the glue chamber (3), a glue injection nozzle (43) is threadedly connected to the bottom of the glue chamber (3), a glue dispensing needle (44) is fixedly connected inside the glue injection nozzle (43), and a glue delivery assembly (45) is fixedly connected to the left side of the glue chamber (3).

6. The automatic glue-applying device for a picture frame corner splicing machine according to claim 5, characterized in that: The glue delivery assembly (45) includes a glue inlet (451), a glue delivery pipe (452) is fixedly connected inside the glue inlet (451), a pressure storage tank (453) is fixedly connected to the other end of the glue delivery pipe (452), and a glue tank rack (454) is fixedly connected to the bottom of the pressure storage tank (453).

7. The automatic glue-applying device for a picture frame corner splicing machine according to claim 6, characterized in that: The external thread of the glue quantity adjusting screw (41) is connected to the inside of the glue chamber (3), and the right side of the glue inlet (451) is rotatably connected to the left side of the glue chamber (3).

8. The automatic glue-applying device for a picture frame corner splicing machine according to claim 6, characterized in that: The front side of the glue bucket holder (454) is fixedly connected to the rear side of the fixed bracket (1), and the top of the glue quantity adjusting screw (41) is slidably connected to the inside of the dispensing valve (21).

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