A fully automatic PUR coating machine

Abstract

This utility model belongs to the technical field of gluing machines, specifically relating to a fully automatic PUR gluing machine. It includes a control body with a glue-applying chamber mounted on its surface. A glue-dispensing component is located on one side of the glue-applying chamber. The side frame and the bottom of the glue-dispensing component are fixedly mounted on the surface of a base plate, which in turn is fixedly mounted on the surface of the control body. In this utility model, activating two second cylinders causes the upper pressure roller to move upwards via corresponding linkage blocks. As the upper pressure roller rises, the space at the glue-dispensing component is further opened. Then, pulling the locking block upwards and to the right disengages it from the positioning claw frame, which is then flipped to one side. Through these operations, the space at the glue-dispensing component is completely opened, allowing maintenance personnel to easily clean the area, thus greatly improving cleaning efficiency and reducing equipment maintenance costs and production downtime.

Description

Technical Field

[0001] This utility model belongs to the field of gluing machine technology, specifically relating to a fully automatic PUR gluing machine. Background Technology

[0002] The fully automatic PUR glue applicator is a device that automates the glue application process using polyurethane reactive hot melt adhesive (PUR). It is widely used in various industries such as footwear and packaging. The glue is extruded onto the application area through a glue dispensing mechanism. When the glue temperature reaches a predetermined value, the dispensing valve opens, and the hot melt adhesive is applied to the target object under air pressure or mechanical motion.

[0003] After prolonged operation, excess adhesive tends to accumulate at the dispensing nozzle of a PUR gluing machine. If not cleaned promptly, the hardened adhesive clumps can cause deviations in the subsequent gluing trajectory and uneven adhesive application, severely impacting bonding accuracy. However, due to equipment structural limitations, the dispensing nozzle is often located in the narrow space between the robotic arm and the workpiece, surrounded by dense components. Manual cleaning with tools is difficult, easily scratching precision valve nozzles and failing to completely remove residual adhesive from the gaps. Especially when PUR adhesive hardens upon contact with air, forming a brittle layer that is difficult to peel off with conventional wiping, repeated cleaning can wear down the dispensing nozzle seals, exacerbating adhesive leakage and creating a vicious cycle of "adhesive accumulation—difficult cleaning—decreased accuracy," indirectly increasing equipment maintenance costs and production downtime. Utility Model Content

[0004] The purpose of this invention is to provide a fully automatic PUR adhesive applicator, aiming to solve the problem that after prolonged operation of a PUR adhesive applicator, excess adhesive tends to accumulate at the dispensing nozzle. If not cleaned in time, the cured adhesive clumps can cause subsequent adhesive application trajectory deviation and uneven adhesive application, severely affecting bonding accuracy. However, due to the limitations of the equipment structure, the dispensing point is often located in the narrow space between the robotic arm and the workpiece. The space is confined and surrounded by dense components, making it difficult for tools to reach the nozzle during manual cleaning. This can easily scratch precision valve nozzles and fail to completely remove residual adhesive from the gaps. Especially when PUR adhesive cures upon contact with air, it forms a hard and brittle layer that is difficult to peel off with conventional wiping. Repeated cleaning can also wear down the dispensing nozzle seals, exacerbating the adhesive leakage problem and creating a vicious cycle of "adhesive accumulation—difficult cleaning—decreased accuracy," indirectly increasing equipment maintenance costs and production downtime.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fully automatic PUR gluing machine, including a control body, a glue-adding cavity installed on the surface of the control body, a glue-dispensing component provided on one side of the glue-adding cavity, and a side frame fixedly installed on both sides of the glue-dispensing component.

[0006] The bottom of the side frame and the dispensing part are fixedly mounted on the surface of the base plate. The bottom of the base plate is fixedly mounted on the surface of the control body. A linear guide rail is fixedly mounted on the surface of the base plate on one side of each side frame. A slider is movably mounted on the surface of each linear guide rail. A first cylinder is fixedly mounted on the outer wall of the end of the base plate away from the dispensing part. The telescopic end of the first cylinder is fixedly connected to one side of the worktable.

[0007] As a fully automatic PUR gluing machine of this utility model, preferably, an inner plate is fixedly installed inside the workbench, and a glue-applying roller is rotatably installed in the recess of the inner plate through a bearing. A dial indicator is installed on the outer wall of one side of the workbench, and the measuring end of the dial indicator is in contact with the outer wall of the side frame.

[0008] The bottom sides of the inner plate are respectively fixedly connected to the surface of a slider, and the worktable is movably mounted on the surface of the base plate through the inner plate, the slider and the first cylinder.

[0009] As a fully automatic PUR gluing machine of this utility model, preferably, one side of the inner wall of the recess on the surface of the glue dispensing part is movably inserted into one end of the positioning claw frame, the other end of the positioning claw frame is attached to the other side of the outer wall of the recess on the surface of the glue dispensing part, one end of the positioning claw frame is engaged in the slot, and the slot is opened on the card block.

[0010] The outer wall of the card block near the bottom is movably connected to the outer wall of one end of the rotating shaft. The other side of the rotating shaft is fixedly installed on the outer wall of the dispensing part. The bottom of the card block is connected to the top of the spring, and the other end of the spring is connected to the surface of the base plate.

[0011] As a fully automatic PUR gluing machine according to this utility model, preferably, a second cylinder is installed on the top of each side frame, the telescopic end of the second cylinder extends into the rectangular opening of the side frame, and a linkage block is installed on the telescopic end of the second cylinder.

[0012] An upper pressure roller is mounted between the two linkage blocks via a bearing, and the initial position of the upper pressure roller is located at the top of the glue coating roller.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] When cleaning of the dispensing part is required, the first cylinder is activated. The extension and retraction of the first cylinder pushes the worktable to one side. As the worktable moves, it drives the dispensing roller to one side via the inner plate, thus moving the dispensing roller away from the dispensing part.

[0015] Simultaneously, two second cylinders are activated, which drive the upper pressure roller upwards via corresponding linkage blocks. As the upper pressure roller rises, the space at the dispensing part is further opened. Then, the locking block is pulled upwards and to the right, disengaging it from the positioning claw holder, and the positioning claw holder is then flipped to one side.

[0016] The above operations completely open up the space at the glue dispensing part, allowing maintenance personnel to easily clean the area, thus greatly improving cleaning efficiency and reducing equipment maintenance costs and production downtime. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall assembly structure provided for an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of the base plate surface mounting structure provided in an embodiment of this application.

[0020] Figure 3 This is a schematic diagram of the dispensing component installation structure provided in an embodiment of this application.

[0021] Figure 4 This is a schematic diagram of the workbench structure from below, provided in an embodiment of this application.

[0022] Figure 5 This is a schematic diagram of the card block structure provided in an embodiment of this application.

[0023] In the diagram: 1. Control body; 2. Glue filling chamber; 3. Glue dispensing component; 31. Positioning claw frame; 32. Clamping block; 33. Rotating shaft; 34. Spring; 35. Clamping slot; 4. Side frame; 41. Second cylinder; 42. Linking block; 43. Upper pressure roller; 5. Worktable; 51. Inner plate; 52. Glue applying roller; 53. Dial indicator; 6. Base plate; 7. Linear guide rail; 8. Slider; 9. First cylinder. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-5The present invention provides the following technical solution: a fully automatic PUR gluing machine, including a control body 1, a glue-adding cavity 2 installed on the surface of the control body 1, a glue-dispensing part 3 provided on one side of the glue-adding cavity 2, and a side frame 4 fixedly installed on both sides of the glue-dispensing part 3.

[0026] The bottom of the side frame 4 and the dispensing part 3 are fixedly installed on the surface of the base plate 6. The bottom of the base plate 6 is fixedly installed on the surface of the control body 1. A linear guide rail 7 is fixedly installed on the surface of the base plate 6 on one side of each side frame 4. A slider 8 is movably installed on the surface of the linear guide rail 7. A first cylinder 9 is fixedly installed on the outer wall of the end of the base plate 6 away from the dispensing part 3. The telescopic end of the first cylinder 9 is fixedly connected to one side of the worktable 5.

[0027] An emergency stop button is installed on the control unit 1. In the event of a sudden material clamping or hand clamping situation, pressing the emergency stop button will cause the upper pressure roller 43 to move upward in time, controlled by the PLC program configured in the control unit 1. This will open the gap between the upper pressure roller 43 and the glue coating roller 52, thus preventing the emergency from escalating further.

[0028] Preferably, an inner plate 51 is fixedly installed inside the workbench 5. A glue-applying roller 52 is rotatably installed in the recess of the inner plate 51 via a bearing. A dial indicator 53 is installed on the outer wall of one side of the workbench 5. The measuring end of the dial indicator 53 is in contact with the outer wall of the side frame 4. The pin on the measuring end of the dial indicator 53 measures the distance between it and the side frame 4. The farther the pin on the dial indicator 53 is from the side frame 4, the thicker the glue application; conversely, the closer the distance, the thinner the glue application.

[0029] The bottom sides of the inner plate 51 are fixedly connected to the surface of a slider 8, and the worktable 5 is movably mounted on the surface of the base plate 6 through the inner plate 51, the slider 8 and the first cylinder 9.

[0030] In practical use, the extension and retraction of the first cylinder 9 will move the worktable 5, which in turn will move the inner plate 51. The movement of the inner plate 51 will then move the corresponding slider 8 at its bottom, which will move along the trajectory of the corresponding linear guide rail 7. Thus, the worktable 5 can adjust the position of the glue-applying roller 52 on the surface of the base plate 6 via the first cylinder 9.

[0031] Preferably, the inner wall of one side of the recess on the surface of the dispensing part 3 is movably inserted into one end of the positioning claw 31, and the other end of the positioning claw 31 overlaps on the outer wall of the other side of the recess on the surface of the dispensing part 3. One end of the positioning claw 31 is engaged in the slot 35, and the slot 35 is opened on the locking block 32.

[0032] The outer wall of the locking block 32 near the bottom is movably connected to the outer wall of one end of the rotating shaft 33. The other side of the rotating shaft 33 is fixedly installed on the outer wall of the dispensing part 3. The bottom of the locking block 32 is connected to the top of the spring 34. The other end of the spring 34 is connected to the surface of the base plate 6.

[0033] When the glue-applying roller 52 is in operation, it is located at the bottom of the upper pressure roller 43, and one end of the positioning claw 31 is inclined and positioned near the outer wall of the glue-applying roller 52. During use, the drive motor on one side of the glue-applying roller 52 will drive the glue-applying roller 52 to rotate, and then the shoe sole component to be glued is placed between the glue-applying roller 52 and the upper pressure roller 43 for glue application.

[0034] When it is necessary to remove glue from the coating roller 52, the second cylinder 41 can be moved upward by controlling the control panel on the surface of the machine body 1. When the second cylinder 41 moves upward, it will drive the upper pressure roller 43 to move upward, thus increasing the distance between the upper pressure rollers 43. At this time, the operator can remove glue from the coating roller 52.

[0035] A drive device is provided on one side of the glue-applying roller 52. When the upper pressure roller 43 and the worktable 5 move backward, the glue-applying roller 52 will continue to rotate. In addition, since the upper pressure roller 43 rotates along with the glue-applying roller 52 and the shoe sole component clamped between them during operation, it will also continue to rotate for a period of time after the upper pressure roller 43 rises.

[0036] Preferably, a second cylinder 41 is installed on the top of each side frame 4, the telescopic end of the second cylinder 41 extends into the rectangular opening of the side frame 4, and a linkage block 42 is installed on the telescopic end of the second cylinder 41;

[0037] By controlling the control button on the machine body 1, the two second cylinders 41 are started synchronously. The two second cylinders 41 will drive the corresponding connecting block 42 to move upward in sync. When the two connecting blocks 42 move upward in sync, they will drive the upper pressure roller 43 to move upward. In this way, the structure can automatically raise the height of the upper pressure roller 43 during cleaning.

[0038] An upper pressure roller 43 is mounted between the two linkage blocks 42 via a bearing. The initial position of the upper pressure roller 43 is at the top of the glue coating roller 52.

[0039] In practical use, when it is necessary to clean the dispensing part 3, the first cylinder 9 is activated. When the first cylinder 9 extends or retracts, it pushes the worktable 5 to one side. When the worktable 5 moves, it will drive the glue applicator roller 52 to one side through the inner plate 51, so that the glue applicator roller 52 will move away from the dispensing part 3.

[0040] At the same time, the two second cylinders 41 are activated. The second cylinders 41 drive the upper pressure roller 43 to move upward through the corresponding linkage block 42. As the upper pressure roller 43 rises, the space at the dispensing part 3 will be further opened.

[0041] After the above two steps are completed, the glue under the dispensing part 3 can be discharged downwards, thereby maximizing the glue cleaning space and facilitating operation and cleaning.

[0042] Now pull the locking block 32 upward and to the right, so that the locking block 32 will disengage from the positioning claw 31, and then flip the positioning claw 31 to one side.

[0043] By performing the above operations, the space at the dispensing part 3 is completely opened, allowing maintenance personnel to easily clean the dispensing part 3, thus greatly improving cleaning efficiency.

[0044] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A fully automatic PUR gluing machine, comprising a control body (1), characterized in that, A glue - adding cavity (2) is surface - mounted on the control body (1). An adhesive - discharging member (3) is provided on one side of the glue - adding cavity (2). On both sides of one side of the adhesive - discharging member (3), a side frame (4) is fixedly installed respectively; The bottoms of the side frames (4) and the adhesive - discharging member (3) are fixedly installed on the surface of the bottom plate (6). The bottom of the bottom plate (6) is fixedly installed on the surface of the control body (1). On the surface of the bottom plate (6) on one side of each side frame (4), a linear guide rail (7) is fixedly installed respectively. On the surface of the linear guide rail (7), a slider (8) is movably installed respectively. On the outer wall of one end of the bottom plate (6) away from the adhesive - discharging member (3), a first cylinder (9) is fixedly installed. The telescopic end of the first cylinder (9) is fixedly connected to one side of the workbench (5).

2. The fully automatic PUR gluing machine according to claim 1, wherein: An inner plate (51) is fixedly installed inside the workbench (5). A glue - applying roller (52) is rotatably installed at the notch of the inner plate (51) through a bearing. A dial indicator (53) is installed on the outer wall of one side of the workbench (5). The detection end of the dial indicator (53) is in contact with the outer wall of the side frame (4).

3. The fully automatic PUR gluing machine according to claim 2, wherein: Both sides of the bottom of the inner plate (51) are fixedly connected to the surface of a slider (8). The workbench (5) is movably installed on the surface of the bottom plate (6) through the inner plate (51), the slider (8) and the first cylinder (9).

4. The fully automatic PUR gluing machine according to claim 1, wherein: One end of a positioning claw frame (31) is movably inserted into the inner wall of the notch on the surface of the adhesive - discharging member (3). The other end of the positioning claw frame (31) overlaps on the outer wall of the other side of the notch on the surface of the adhesive - discharging member (3). One end of the positioning claw frame (31) is clamped in a bayonet (35). The bayonet (35) is opened on a clamping block (32).

5. The fully automatic PUR gluing machine according to claim 4, wherein: One side outer wall of the clamping block (32) near the bottom is movably connected to one end outer wall of a rotating shaft (33). The other side of the rotating shaft (33) is fixedly installed on the outer wall of the adhesive - discharging member (3). The bottom of the clamping block (32) is connected to the top of a spring (34). The other end of the spring (34) is connected to the surface of the bottom plate (6).

6. The full-automatic PUR gluing machine according to claim 1, wherein: On the top of each side frame (4), a second cylinder (41) is installed respectively. The telescopic end of the second cylinder (41) extends movably into the rectangular opening of the side frame (4). A linkage block (42) is installed on the telescopic end of the second cylinder (41).

7. The fully automatic PUR gluing machine according to claim 6, wherein: A upper pressure roller (43) is installed between the two linkage blocks (42) through a bearing. The initial position of the upper pressure roller (43) is at the top of the glue - applying roller (52).

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