CN-224221782-U - Anti-blocking device of automatic glue supply hot melt adhesive machine

Abstract

The utility model belongs to the technical field of hot melt adhesive machines, and particularly relates to an anti-blocking device of an automatic adhesive feeding hot melt adhesive machine, which comprises a bottom plate, wherein a supporting table is fixedly arranged on the bottom plate, a melting cylinder is fixedly arranged on the supporting table, a rotating rod is arranged in the melting cylinder, a cleaning frame is fixedly arranged below the rotating rod, three groups of scrapers are fixedly arranged on the cleaning frame, a gear pump is fixedly arranged on the bottom plate, a discharge port of the gear pump is fixedly communicated with a material guide pipe, the material guide pipe is fixedly communicated with a reversing valve through a connecting pipe, the reversing valve is fixedly communicated with an air inlet pipe and an adhesive spraying head, the scraping plate on the cleaning frame drives the brush to clean a filter screen in the material guide pipe so as to prevent the filter screen from being blocked, and when adhesive feeding is required to be stopped, the switch of the reversing valve is rotated so that an air inlet pipe is communicated with the adhesive spraying head, high-pressure air blows residual adhesive in the adhesive spraying head, and the hot melt adhesive is prevented from being blocked in the adhesive spraying head.

Inventors

• WANG HUI

Assignees

• 深圳金皇尚热熔胶喷涂设备有限公司

Dates

Publication Date

20260512

Application Date

20250529

Claims (6)

1. 1. The anti-blocking device of the automatic glue supply hot melt adhesive machine comprises a bottom plate (1) and is characterized in that a supporting table (2) and a limiting frame (21) are fixedly installed on the bottom plate (1), a melting cylinder (4) is fixedly installed on the supporting table (2), a discharging pipe (17) is fixedly communicated below the melting cylinder (4), a filter screen (9) is arranged in the discharging pipe (17), a rotating rod (10) is installed in the melting cylinder (4), a cleaning frame (12) is fixedly installed below the rotating rod (10), three groups of scraping plates (15) are fixedly installed on the cleaning frame (12), a plurality of brushes are fixedly installed at one end of each scraping plate (15), a gear pump (18) is fixedly installed on the bottom plate (1), a feeding port of the discharging pipe (17) is fixedly communicated with a feeding port of the gear pump (18), a feeding pipe (22) is fixedly communicated with the other end of the discharging pipe (17), a connecting pipe (16) is fixedly communicated with a rotating rod (10), a reversing valve (23) is fixedly communicated with the feeding pipe (23), a reversing valve (24) is fixedly communicated with a reversing valve (24), and the reversing valve (23) is fixedly communicated with a reversing valve (24).
2. 2. The anti-blocking device of the automatic glue supply hot melt adhesive machine according to claim 1, wherein a sealing cover (6) is fixedly arranged above the melting cylinder (4), the sealing cover (6) is rotationally connected with a rotating rod (10), a feeding groove (8) and a transmission motor (7) are fixedly arranged on the sealing cover (6), and a transmission shaft of the transmission motor (7) is fixedly sleeved with the rotating rod (10).
3. 3. The anti-blocking device of the automatic glue supply hot melt adhesive machine according to claim 1, wherein a stirring frame (11) is fixedly arranged on the rotating rod (10), a plurality of stirring blades (13) are fixedly arranged on the stirring frame (11), and three groups of scraping strips (14) are fixedly arranged on the side edge of the stirring frame (11).
4. 4. The anti-blocking device of the automatic glue supply hot melt adhesive machine according to claim 1, wherein the gear pump (18) is sleeved with the heat preservation bin (3), the heat preservation bin (3) is fixedly connected with the bottom plate (1), a fixed table (19) is fixedly installed on the bottom plate (1), a driving motor (20) is fixedly installed on the fixed table (19), and a transmission shaft of the driving motor (20) is fixedly sleeved with a driving shaft of the gear pump (18).
5. 5. The anti-blocking device of the automatic glue supply hot melt adhesive machine according to claim 1, wherein the limiting frame (21) comprises two groups of supporting plates (5), limiting plates (27) are fixedly arranged between the supporting plates (5), limiting notches (28) are formed in the limiting plates (27), limiting rings are fixedly arranged on the connecting pipes (16), the limiting notches (28) are matched with the limiting rings, connecting plates (26) are fixedly arranged between the material guide pipes (22) and the air inlet pipes (25), and handles (29) are fixedly arranged on the gear pumps (18).
6. 6. The anti-blocking device of the automatic glue supply hot melt adhesive machine according to claim 1, wherein an electric heating wire is fixedly arranged on the inner wall of the melting cylinder (4), and an insulating layer is fixedly sleeved on the outer wall of the material guide pipe (22).

Description

Anti-blocking device of automatic glue supply hot melt adhesive machine Technical Field The utility model relates to the technical field of hot melt adhesive machines, in particular to an anti-blocking device of an automatic adhesive supply hot melt adhesive machine. Background The hot melt adhesive machine is equipment which can realize the functions of automatic gluing, glue spraying and the like by heating and melting solid hot melt adhesive to be liquid and extruding the solid hot melt adhesive through a pumping system. The core principle is that the glue block/glue particles are melted into fluid by an electric heating device, the glue solution is conveyed to a glue coating head through a pump body (such as a gear pump and a piston pump) or air pressure drive, and finally the glue coating operation is completed through a nozzle or the coating head. But in practice many blockage problems are faced. The glue spraying head is easy to be blocked by solidified glue due to sudden drop of outlet temperature and long-term use residue, and the filter screen is blocked due to untimely impurity cleaning. These problems affect the spraying effect, equipment stability and increase maintenance cost, and in order to reduce the blocking condition of the hot melt adhesive machine, we propose an anti-blocking device of the automatic adhesive supply hot melt adhesive machine. Disclosure of utility model According to the anti-blocking device of the automatic glue supply hot melt adhesive machine, the rotating rod is arranged in the melting cylinder, the cleaning frame is fixedly arranged on the rotating rod, the scraping plate on the cleaning frame can drive the hairbrush to clean the filter screen in the discharging pipe, so that the filter screen is prevented from being blocked, when glue supply is required to be stopped, the air inlet pipe is communicated with the glue spraying head through rotating the switch of the reversing valve, and high-pressure gas blows away residual glue in the glue spraying head, so that the hot melt adhesive is prevented from being blocked in the glue spraying head, and the background problem is solved. In order to achieve the above purpose, the utility model is realized by the following technical scheme: The utility model provides an automatic glue feeding hot melt adhesive machine anti-blocking device, includes the bottom plate, fixed mounting has brace table and spacing on the bottom plate, fixed mounting has the jar that melts on the brace table, melt jar below fixed intercommunication has the discharging pipe, be provided with the filter screen in the discharging pipe, melt jar internal rotation and install the bull stick, bull stick below fixed mounting has the cleaning frame, fixed mounting has three group's scrapers on the cleaning frame, scraper blade one end fixed mounting has a plurality of brushes, fixed mounting has the gear pump on the bottom plate, the discharging pipe is fixed with the feed inlet of gear pump intercommunication, the discharge gate fixed intercommunication of gear pump has the passage, the other end fixed intercommunication of passage has the connecting pipe, the fixed intercommunication of connecting pipe has the switching-over valve, the fixed intercommunication of valve port of switching-over valve top has the intake pipe, the fixed intercommunication of valve port of switching-over valve left side has the glue spraying head. Preferably, a sealing cover is fixedly arranged above the melting cylinder and is rotationally connected with the rotating rod, a feed chute and a transmission motor are fixedly arranged on the sealing cover, and a transmission shaft of the transmission motor is fixedly sleeved with the rotating rod. Preferably, the stirring frame is fixedly arranged on the rotating rod, a plurality of stirring blades are fixedly arranged on the stirring frame, and three groups of scraping strips are fixedly arranged on the side edge of the stirring frame. Preferably, the gear pump is sleeved with a thermal insulation bin, the thermal insulation bin is fixedly connected with a bottom plate, a fixed table is fixedly installed on the bottom plate, a driving motor is fixedly installed on the fixed table, and a transmission shaft of the driving motor is fixedly sleeved with a driving shaft of the gear pump. Preferably, the limiting frame comprises two groups of supporting plates, a limiting plate is fixedly arranged between the supporting plates, a limiting notch is formed in the limiting plate, a limiting ring is fixedly arranged on the connecting pipe, the limiting notch is matched with the limiting ring, a connecting plate is fixedly arranged between the material guiding pipe and the air inlet pipe, and a handle is fixedly arranged on the gear pump. Preferably, the inner wall of the melting cylinder is fixedly provided with an electric heating wire, and the outer wall of the material guiding pipe is fixedly sleeved with an insulating layer. Advantageous