CN219519420U

CN219519420U - Hot melt adhesive's play gluey mechanism

Info

Publication number: CN219519420U
Application number: CN202223508299.0U
Authority: CN
Inventors: 裴明丰
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-08-15
Anticipated expiration: 2032-12-27

Abstract

The utility model provides a hot melt adhesive discharging mechanism, which comprises an adhesive discharging module, a heating module and a control module; the glue outlet module comprises a glue cylinder body, a gear pump and a backflow valve, the gear pump is arranged below the rear side of the glue cylinder body, an inlet of the gear pump is communicated with an inner cavity of the glue cylinder body, an outlet of the gear pump is communicated with a glue outlet, the backflow valve is arranged above the rear side of the glue cylinder body, an inlet of the backflow valve is communicated with the glue outlet, and a backflow port of the backflow valve is communicated with the inner cavity of the glue cylinder body. According to the utility model, a direct butt joint mode is adopted between the rubber cylinder body and the gear pump, and the gear pump can precisely control the rubber yield; meanwhile, the backflow valve can achieve the effect of glue outlet safety protection, when a glue outlet or an external valve body is plugged, glue can flow back to the inner cavity through the backflow valve, pressure is released, and external components are not damaged.

Description

Hot melt adhesive's play gluey mechanism

Technical Field

The utility model relates to hot melt adhesive equipment, in particular to a hot melt adhesive discharging mechanism.

Background

The hot melt adhesive device is widely used in household appliance industry, automobile industry, filter industry, bottle cap bonding industry, non-woven fabric industry, packaging label industry, shoe material industry, medical dressing industry and clothing and material composite industry. Most of the existing small hot melt adhesive barrels comprise an air control unit, an air pressure meter, a cover, a flange seat, a heating barrel, an adhesive outlet nozzle and the like, when the novel hot melt adhesive barrel is used, the cover is manually unscrewed, hot melt adhesive particles are put into the heating barrel, the cover is covered, a layer of heating ring is wrapped in the heating barrel, the heating barrel is heated after the starting of electrification, and after a certain time, ventilation control is performed through an air hole unit to realize an adhesive dispensing function. The small hot melt adhesive barrel is pneumatically controlled to discharge adhesive, so that the adhesive cannot be precisely discharged, and errors exist; the heating ring is slowly heated, the glue melting speed is low, and the temperature in the barrel is uneven; the heating barrel and other parts are integrally arranged, so that the inner barrel wall is inconvenient to clean; the temperature in the barrel is not monitored, the accurate temperature cannot be obtained, and the problem of insufficient temperature or too high temperature can be caused.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present utility model is directed to a hot melt adhesive dispensing mechanism, which is used for solving the problems of the prior art that the precise dispensing of the hot melt adhesive is impossible, the melting speed is slow, the melting speed is uneven, the cleaning is inconvenient, and the temperature cannot be monitored.

To achieve the above and other related objects, the present utility model provides a hot melt adhesive dispensing mechanism, comprising:

the glue outlet module comprises a glue cylinder body, a gear pump and a backflow valve, wherein the gear pump is arranged below the rear side of the glue cylinder body, an inlet of the gear pump is communicated with an inner cavity of the glue cylinder body, an outlet of the gear pump is communicated with a glue outlet, the backflow valve is arranged above the rear side of the glue cylinder body, an inlet of the backflow valve is communicated with the glue outlet, and a backflow port of the backflow valve is communicated with the inner cavity of the glue cylinder body;

the heating module is used for heating the hot melt adhesive in the adhesive cylinder body;

and the control module is used for controlling the heating module and the gear pump.

The bottom of the inner cavity is arranged obliquely downwards from front to back.

In one embodiment of the present utility model, the bottom of the cavity is disposed obliquely downward from front to back.

In an embodiment of the utility model, the heating module includes a first heating rod, the first heating rod is disposed below the rubber cylinder body, and the first heating rod is disposed obliquely according to a slope of the bottom of the inner cavity.

In an embodiment of the utility model, the heating module further includes a second heating rod, and the second heating rod is longitudinally disposed on a side surface of the rubber cylinder body.

In an embodiment of the utility model, the heating module further includes a heating block, the heating block is disposed in the inner cavity, and a second heating rod is installed inside the heating block.

In an embodiment of the utility model, a plurality of heating plates are disposed in the inner cavity at intervals along two sides.

In an embodiment of the utility model, an upper end of the heating plate is horizontal to an opening end of the inner cavity.

In an embodiment of the present utility model, a temperature sensor is further installed in the inner cavity, and an output end of the temperature sensor is connected with an input end of the control module.

In an embodiment of the utility model, a first heat insulation board is arranged at the front side of the rubber cylinder body, and second heat insulation boards are respectively arranged at two sides of the rubber cylinder body.

In an embodiment of the utility model, a third heat insulation board for sealing the inner cavity is hinged to the top of the rubber cylinder body, and an observation window is arranged in the middle of the third heat insulation board.

As described above, the hot melt adhesive discharging mechanism has the following beneficial effects:

1. the rubber cylinder body and the gear pump are in direct butt joint, and the gear pump can precisely control the rubber yield; meanwhile, the gear pump can avoid the influence of motor shake on glue discharging, and the stability of glue discharging is improved.

2. The backflow valve can achieve the effect of glue outlet safety protection, when a glue outlet or an external valve body is plugged, glue can flow back to the inner cavity through the backflow valve, pressure is released, and external components are not damaged.

3. The bottom of inner chamber is from front to back slope downwards setting, simultaneously, sets up a plurality of heating plates along both sides direction interval in the inner chamber to this increases the heating area, accelerates the glue melting speed.

4. The inner cavity is also provided with a temperature sensor, and the control module can adjust the output power of the heating module in real time through the information fed back by the temperature sensor so as to adjust the temperature in the rubber cylinder body.

5. The third heat insulating plate is connected to the top of the rubber cylinder body in an opening and closing mode, so that the inner cavity of the rubber cylinder body is conveniently cleaned, and hot melt adhesive is also conveniently supplemented.

6. An observation window is arranged, so that an operator can observe the melting condition inside the rubber cylinder body in real time.

Drawings

Fig. 1 is a schematic structural view showing a closed state of a hot melt adhesive dispensing mechanism according to the present utility model.

Fig. 2 is a schematic diagram showing a closed state of a hot melt adhesive dispensing mechanism according to the present utility model.

Fig. 3 is a schematic structural view showing an opened state of a glue discharging mechanism of a hot melt glue according to the present utility model.

Fig. 4 is a schematic cross-sectional view of a hot melt adhesive dispensing mechanism according to the present disclosure.

Fig. 5 shows a second schematic cross-sectional view of a hot melt adhesive dispensing mechanism according to the present disclosure.

Description of element reference numerals

1. A rubber cylinder body; 11. an inner cavity; 12. a glue outlet; 2. a gear pump; 3. a return valve; 31. a return port; 32. a return valve plug; 4. a first heat shield; 5. a second heat shield; 6. a third heat shield; 61. an observation window; 62. a hinge base; 63. a hinge block; 64. a hinge; 71. a first heating rod; 72. a second heating rod; 73. a heating block; 74. a mounting hole; 8. a temperature sensor; 9. and heating the sheet.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.

Please refer to fig. 1 to 5. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.

Referring to fig. 1, the utility model provides a hot melt adhesive dispensing mechanism, which comprises an adhesive dispensing module, a heating module and a control module; wherein, go out to glue the module and include gluey jar body 1, gear pump 2 and return valve 3, gear pump 2 sets up in the rear side below of gluey jar body 1, the entry of gear pump 2 communicates with the inner chamber 11 of gluey jar body 1, the export of gear pump 2 communicates with play glue mouth 12, return valve 3 sets up in the rear side top of gluey jar body 1, the entry and the play glue mouth 12 intercommunication of return valve 3, the return mouth 31 of return valve 3 communicates with the inner chamber 11 of gluey jar body 1.

In the glue outlet module, a direct butt joint mode is adopted between the glue cylinder body 1 and the gear pump 2, and the gear pump 2 can precisely control the glue outlet amount; meanwhile, the gear pump 2 can avoid the influence of motor shake on glue discharging, and the stability of glue discharging is improved. The glue outlet safety protection effect can be realized by adding the reflux valve 3 to the glue outlet module, and when the glue outlet 12 or the external valve body is blocked, glue can flow back to the inner cavity 11 through the reflux valve 3, so that the pressure is released, and the external components are not damaged. In order to facilitate the outflow of the glue, the inlet of the gear pump 2 is communicated with the bottom of the inner cavity 11; to facilitate the glue return, the return opening 31 of the return valve 3 communicates with the rear side of the cavity 11.

In order to prevent heat from leaking, the front side of the rubber cylinder body 1 is provided with a first heat insulation plate 4, two sides of the rubber cylinder body 1 are respectively provided with a second heat insulation plate 5, and the heat insulation plates not only can store heat in the rubber cylinder body 1, but also can prevent an operator from being scalded by mistake, so that the rubber cylinder is safer. Meanwhile, a third heat insulation plate 6 for sealing the inner cavity 11 is hinged to the top of the rubber cylinder body 1, and an observation window 61 is formed in the middle of the third heat insulation plate 6. The observation window 61 is made of glass so that an operator can observe the melting condition inside the rubber cylinder body 1 in real time. The third heat insulating plate 6 is opened and closed in a hinged connection mode, so that the inner cavity 11 of the rubber cylinder body 1 is conveniently cleaned, and hot melt adhesive is also conveniently supplemented. Specifically, the top of the rubber cylinder body 1 is provided with a hinge 64 seat 62, the rear side of the third heat insulation plate 6 is provided with a hinge 64 block 63, and the hinge 64 seat 62 and the hinge 64 block 63 are hinged through the hinge 64.

Further, a heating module is used for heating the hot melt adhesive in the adhesive cylinder body 1, and the heating module comprises a first heating rod 71, a second heating rod 72 and a heating block 73. Wherein the first heating rod 71 is arranged below and at the rear side of the rubber cylinder body 1; specifically, a plurality of first heating rods 71 are disposed below the rubber cylinder body 1, and the first heating rods 71 are disposed obliquely according to the inclination of the bottom of the inner cavity 11. The first heating rod 71 is slightly larger in size than the second heating rod 72, which can provide a large amount of heat. The second heating rod 72 is longitudinally arranged on the side surface of the rubber cylinder body 1, and two sides of the rubber cylinder body 1 are provided with matched mounting holes 74. The heating block 73 is disposed in the inner cavity 11, and the second heating rod 72 is installed inside the heating block 73. For more abundant heating glue, the bottom of inner chamber 11 sets up downwards from front to back slope, simultaneously, sets up a plurality of heating plates along both sides direction interval in inner chamber 11 to this increases the heating area, accelerates the glue speed that melts. At the same time, the inclined bottom of the inner cavity 11 can facilitate the glue to flow to the gear pump 2. Preferably, the upper end of the heater chip is level with the open end of the cavity 11.

Further, the control module is used for controlling the heating module and the gear pump 2. A temperature sensor 8 is also arranged in the inner cavity 11, and the output end of the temperature sensor 8 is connected with the input end of the control module. The control module can adjust the output power of the heating module in real time through the information fed back by the temperature sensor 8, so as to adjust the temperature in the rubber cylinder body 1.

In summary, the rubber cylinder body and the gear pump are directly in butt joint, and the gear pump can precisely control the rubber amount; meanwhile, the backflow valve can achieve the effect of glue outlet safety protection, when a glue outlet or an external valve body is plugged, glue can flow back to the inner cavity through the backflow valve, pressure is released, and external components are not damaged. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. The utility model provides a play gum mechanism of hot melt adhesive which characterized in that includes:

the control module is used for controlling the heating module and the gear pump;

2. The hot melt adhesive dispensing mechanism of claim 1, wherein the heating module comprises a first heating rod disposed below the adhesive cylinder body, the first heating rod being disposed obliquely according to the slope of the bottom of the inner cavity.

3. The hot melt adhesive dispensing mechanism of claim 2, wherein the heating module further comprises a second heating rod disposed longitudinally on a side of the adhesive cylinder body.

4. A hot melt adhesive dispensing mechanism as recited in claim 3, wherein said heating module further comprises a heating block disposed within said cavity, said heating block having a second heating rod mounted therein.

5. The hot melt adhesive dispensing apparatus according to any one of claims 1 to 4, wherein a plurality of heating plates are disposed in the cavity at intervals along both sides.

6. The hot melt adhesive dispensing mechanism of claim 5, wherein the upper end of the heating plate is horizontal to the open end of the cavity.

7. The hot melt adhesive dispensing mechanism of claim 1, wherein a temperature sensor is further mounted in the interior cavity, and an output of the temperature sensor is connected to an input of the control module.

8. The hot melt adhesive dispensing mechanism of claim 1, wherein the front side of the adhesive cylinder body is provided with a first heat shield, and the two sides of the adhesive cylinder body are respectively provided with a second heat shield.

9. The hot melt adhesive dispensing mechanism of claim 8, wherein a third heat shield for sealing the cavity is hinged to the top of the adhesive cylinder body, and an observation window is provided in the middle of the third heat shield.