CN219702524U - Hot melt adhesive machine - Google Patents

Abstract

The embodiment of the utility model provides a hot melt adhesive machine, and belongs to the technical field of adhesive machines. The hot melt adhesive machine comprises a hot melt adhesive machine body and a fluid supplementing assembly, wherein the hot melt adhesive machine body comprises an adhesive barrel and a power unit, the adhesive is stored in the adhesive barrel, the adhesive barrel is communicated with an adhesive outlet pipe, an adhesive outlet end of the adhesive outlet pipe is connected with an adhesive tank for temporarily storing the adhesive, the adhesive tank is connected with an adhesive gun, and the power unit is used for conveying the adhesive in the adhesive barrel to the adhesive tank through the adhesive outlet pipe; the hot melt adhesive machine body further comprises a liquid supplementing assembly, wherein the liquid supplementing assembly is used for controlling the power unit to supplement adhesive liquid into the adhesive tank so as to maintain the liquid level of the adhesive liquid in the adhesive tank between a first preset value and a second preset value. The hot melt adhesive can improve the utilization rate of the adhesive solution.

Description

Hot melt adhesive machine

Technical Field

The utility model relates to the technical field of glue machines, in particular to a hot melt glue machine.

Background

The hot melt adhesive machine is an indispensable rubberizing equipment in the production and application processes of PUR hot melt adhesive, at present, the hot melt adhesive machine mostly adopts a pressure disk type hot melt adhesive, namely a heating part is an aluminum alloy heating disk, when in use, the heating disk is pressed into an adhesive barrel from top to bottom, the heating disk is positioned above colloid, and when the heating disk heats, only one layer of the colloid contacts with the heating disk, so that the colloid reaches a melting point to be melted. And a hot melt adhesive outlet for the adhesive to flow out is formed from the hot melt adhesive machine body, and the hot melt adhesive outlet is connected with a hot melt adhesive gun through an adhesive outlet pipe to use the PUR hot melt adhesive.

In general, when the PUR hot melt adhesive is used by a hot melt adhesive gun, the hot melt adhesive in the adhesive barrel is generally conveyed into the adhesive pool by manual control equipment of a worker for temporary storage for standby, and the dosage of the adhesive cannot be accurately controlled in the process of manually supplementing the adhesive by the worker, so that the process requirement cannot be met. Of course, the existing hot melt adhesive machine also has the mode of adopting the magnetic induction switch to control the adhesive quantity of the adhesive layer, but because the positioning accuracy of the air cylinder in the hot melt adhesive machine is poor, and the detection intensity of the magnetic induction switch is attenuated after a period of use, the error of the adhesive quantity is larger, so that the hot melt adhesive machine causes a large amount of PUR adhesive to be wasted.

Disclosure of Invention

The embodiment of the utility model provides a hot melt adhesive machine, which can improve the utilization rate of adhesive liquid of the hot melt adhesive machine.

The embodiment of the utility model provides a hot melt adhesive machine, which comprises a hot melt adhesive machine body and a fluid supplementing assembly, wherein the hot melt adhesive machine body comprises an adhesive barrel and a power unit, the adhesive barrel is internally stored with adhesive liquid, the adhesive barrel is communicated with an adhesive outlet pipe, the adhesive outlet end of the adhesive outlet pipe is connected with an adhesive tank for temporarily storing the adhesive liquid, the adhesive tank is connected with an adhesive gun, and the power unit is used for conveying the adhesive liquid in the adhesive barrel to the adhesive tank through the adhesive outlet pipe; the hot melt adhesive machine body further comprises a liquid supplementing assembly, wherein the liquid supplementing assembly is used for controlling the power unit to supplement adhesive liquid into the adhesive tank so as to maintain the liquid level of the adhesive liquid in the adhesive tank between a first preset value and a second preset value.

In the scheme, glue solution is stored in the glue barrel, and the glue solution in the glue barrel is conveyed to a glue pool for temporary storage through a power unit through a glue outlet pipe for glue coating of a glue gun at the tail end of the glue pool. Through being provided with the fluid infusion subassembly, the fluid infusion subassembly can be with the glue solution volume in the glue pond at certain interval all the time, namely the glue solution in the glue pond is maintained between first default and second default to fully satisfy the rubber coating use of glue rifle, after the glue solution volume in the glue pond does not accord with between first default and the second default, power unit can be automatic to the supplementary glue solution in the glue pond, has improved the utilization ratio of hot melt adhesive machine glue solution.

In some embodiments, the fluid infusion assembly comprises a fluid level sensor, a controller and a fluid level switch, wherein the fluid level sensor and the fluid level switch are electrically connected with the controller, and the fluid level sensor is arranged in the glue tank and used for monitoring the fluid level of glue solution in the glue tank; the liquid level switch is arranged on the rubber outlet pipe, when the liquid level of the rubber solution in the rubber pool is equal to or lower than a first preset value, the liquid level sensor is used for sending a first trigger signal to the controller, and when the liquid level of the rubber solution in the rubber pool is equal to or higher than a second preset value, the liquid level sensor is used for sending a second trigger signal to the controller; the controller is used for controlling the opening and closing of the liquid level switch according to the first trigger signal or the second trigger signal so as to supplement glue solution into the glue pool or stop supplementing glue solution through the power unit.

According to the technical scheme, the liquid level sensor is arranged in the glue pool, the liquid level sensor can monitor the liquid level of glue solution in the glue pool in real time, the liquid level sensor and the liquid level switch are electrically connected with the controller, and when the liquid level of the glue solution in the glue pool is equal to or lower than a first preset value, the liquid level sensor is used for sending a first trigger signal to the controller. When the liquid level of the glue solution in the glue pool is equal to or higher than a second preset value, the liquid level sensor is used for sending a second trigger signal to the controller, so that the controller can control the opening and closing of the liquid level switch according to the first trigger signal or the second trigger signal, and the glue solution is replenished into the glue pool or stopped to be replenished through the power unit, so that the glue solution in the glue pool is maintained between the first preset value and the second preset value.

In some embodiments, the controller is configured to send a closing signal to the liquid level switch according to the first trigger signal, and make the power unit supplement the glue solution into the glue tank through the glue outlet pipe, or send an opening signal to the liquid level switch according to the second trigger signal, and disconnect the glue outlet pipe from the glue tank to stop the power unit from delivering the glue solution into the glue tank; wherein the first preset value is smaller than the second preset value. .

According to the technical scheme, when the liquid level of the glue solution in the glue tank is equal to or lower than a first preset value, the controller sends a closing signal according to the first trigger signal liquid level switch, so that the glue barrel is communicated with the glue tank through the glue outlet pipe, then the glue solution in the glue barrel is conveyed into the glue tank by the power unit, when the glue solution in the glue tank is supplemented to a second preset value, the glue solution in the glue tank is supplemented in place, then the controller sends an opening signal to the liquid level switch according to the second trigger signal, the glue outlet pipe is disconnected with the glue tank to stop the power unit from conveying the glue solution into the glue tank, and therefore the glue solution in the glue tank is always maintained in a reasonable interval.

In some embodiments, the power unit is used for conveying the glue solution in the glue barrel to the glue pool through the glue outlet pipe under the condition that the liquid level switch is closed, and stopping conveying the glue solution in the glue barrel to the glue pool through the glue pipe under the condition that the liquid level switch is opened.

In the above technical scheme, the power unit is used for providing power, and the glue solution melted in the glue barrel is conveyed to the glue pond according to the requirement, namely, the power unit represents that the glue solution in the glue pond is insufficient at this moment under the condition that the liquid level switch is closed, and needs to be supplemented, so that the controller controls the power unit to convey the glue solution in the glue barrel to the glue pond through the glue outlet pipe, and when the glue solution amount in the glue pond is enough, the controller controls the liquid level switch to be disconnected, and the power unit stops conveying the glue solution in the glue barrel to the glue pond through the glue pipe.

In some embodiments, the fluid infusion assembly further includes a timing module, the timing module is electrically connected with the controller, the timing module is used for calculating time of single operation of the power unit, under the condition that the glue solution in the glue tank is sufficient, the power unit rises the time of the glue solution in the glue tank from a first preset value to a second preset value to be the first preset time, when the actual time of single action of the power unit recorded by the timing module is greater than the first preset time, the timing module sends a third trigger signal to the controller, and the controller controls the power unit to stop working according to the third trigger signal.

In the above technical scheme, in order to further ensure whether the glue solution amount in the glue barrel is sufficient, through being provided with the timing module, under the condition that the glue solution in the glue barrel is sufficient, the power unit rises the time of the glue solution in the glue pond from the first preset value to the second preset value for the first preset time, so in the actual working process of the power unit, along with the consumption of the glue solution amount in the glue barrel, when the actual time of the single action of the power unit recorded by the timing module is greater than the first preset time, the defect of insufficient glue solution in the glue barrel or no glue solution can be judged, thereby solving the problem of glue solution residue in the glue barrel, and being convenient for the staff to replace the glue barrel or supplement the glue solution in the glue barrel in time.

In some embodiments, the fluid infusion assembly further comprises a speaker electrically connected to the controller, and the speaker is controlled to perform voice broadcast when the controller receives the third trigger signal.

According to the technical scheme, the loudspeaker is arranged on the liquid supplementing component, when the glue liquid quantity in the glue barrel is insufficient or no glue liquid exists, the controller can control the loudspeaker to conduct voice broadcasting when receiving the third trigger signal, and therefore workers can be reminded of timely replacing the glue barrel or supplementing the glue liquid into the glue barrel.

In some embodiments, the power unit comprises two cylinders and a pressure plate assembly, the output ends of the two cylinders are connected to the pressure plate assembly through connecting rods together so as to drive the pressure plate assembly to lift up and down, and the pressure plate assembly is used for melting colloid in the colloid barrel, which is close to one side of the pressure plate assembly, and pressing the melted colloid into the rubber outlet pipe.

In the above technical scheme, the driving end through the cylinder is connected in the connecting rod, and the connecting rod is connected in the pressure disk subassembly to realize the heating extrusion of pressure disk subassembly to the interior colloid of gluing the bucket, and carry the glue solution to gluing in the pond through the play rubber tube.

In some embodiments, a support base is provided at the bottom of the glue barrel for supporting the glue barrel and the power unit.

In the above technical scheme, through being provided with the support base in the bottom of gluing the bucket, the support base can provide the supporting role for the hot melt adhesive machine for the wholeness of hot melt adhesive machine is stronger.

In some embodiments, the bottom of the rubber barrel is concavely provided with a concave part, and the supporting base is provided with a convex part at a position corresponding to the concave part, and the convex part is matched with the shape of the concave part.

Among the above-mentioned technical scheme, because the bottom indent of gluing the bucket forms there is the depressed part, through being provided with the bellying at the top of supporting the base, and the bellying matches with the shape of depressed part, has utilized the bellying effectual deformation of eliminating the gluing bucket at the pressure disk in-process of pushing down like this, makes the pressure disk more laminate with the bottom of PUR gluing the bucket to reach the glue utilization ratio in the improvement gluing bucket.

In some embodiments, the glue reservoir is rectangular or cylindrical in shape.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a hot melt adhesive machine according to some embodiments of the present utility model;

FIG. 2 is a schematic view of another angle of a hot melt adhesive machine according to some embodiments of the present utility model;

fig. 3 is a schematic control logic diagram of a controller in a hot melt adhesive machine according to some embodiments of the present utility model.

Icon: 10-a glue barrel; 20-a power unit; 21-cylinder; 22-connecting rods; 23-pressing plate; 24-gear pump; 30-a rubber outlet pipe; 40-a glue pool; 41-a liquid level sensor; 42-a liquid level switch; 50-supporting a base; 51-a boss; 60-a control cabinet; 61-a controller; 62-a speaker; 63-a timing module.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present utility model, it should be noted that, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is conventionally put when the application product is used, which is merely for convenience in describing the present utility model and simplifying the description, and is not indicative or implying that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples

Referring to fig. 1, 2 and 3, the hot melt adhesive machine comprises a hot melt adhesive machine body and a fluid supplementing component, wherein the hot melt adhesive machine body comprises an adhesive barrel 10 and a power unit 20, adhesive liquid is stored in the adhesive barrel 10, the adhesive barrel 10 is communicated with an adhesive outlet pipe 30, an adhesive outlet end of the adhesive outlet pipe 30 is connected with an adhesive tank 40 for temporarily storing the adhesive liquid, the adhesive tank 40 is connected with an adhesive gun, and the power unit 20 is used for conveying the adhesive liquid in the adhesive barrel 10 to the adhesive tank 40 through the adhesive outlet pipe 30; the hot melt adhesive machine body further comprises a liquid supplementing component, wherein the liquid supplementing component is used for controlling the power unit 20 to supplement the adhesive liquid into the adhesive tank 40 so as to maintain the liquid level of the adhesive liquid in the adhesive tank 40 between a first preset value and a second preset value.

In the scheme, glue solution is stored in the glue barrel 10, and the glue solution in the glue barrel 10 is conveyed to the glue pool 40 for temporary storage through the power unit 20 and the glue outlet pipe 30 for glue coating of a glue gun at the tail end of the glue pool 40. Through being provided with the fluid infusion subassembly, the fluid infusion subassembly can be with the glue solution volume in glue pond 40 at certain interval all the time, namely the glue solution in glue pond 40 is maintained between first default and second default to fully satisfy the rubber coating use of glue rifle, after the glue solution volume in glue pond 40 does not accord with between first default and the second default, power unit 20 can be automatic to the supplementary glue solution in glue pond 40, has improved the utilization ratio of glue solution.

The glue tank 40 is provided with a glue gun for gluing, and the glue gun is in the prior art, so that a detailed description of a specific structure of the glue gun is omitted.

In some embodiments, the fluid replacement assembly comprises a fluid level sensor 41, a controller 61 and a fluid level switch 42, wherein the fluid level sensor 41 and the fluid level switch 42 are electrically connected with the controller 61, and the fluid level sensor 41 is arranged in the glue tank 40 for monitoring the fluid level of the glue solution in the glue tank 40; the liquid level switch 42 is arranged on the rubber outlet pipe 30, when the liquid level of the rubber solution in the rubber tank 40 is equal to or lower than a first preset value, the liquid level sensor 41 is used for sending a first trigger signal to the controller 61, and when the liquid level of the rubber solution in the rubber tank 40 is equal to or higher than a second preset value, the liquid level sensor 41 is used for sending a second trigger signal to the controller 61; the controller is used for controlling the opening and closing of the liquid level switch 42 according to the first trigger signal or the second trigger signal so as to supplement the glue solution into the glue tank 40 or stop supplementing the glue solution through the power unit 20.

By arranging the liquid level sensor 41 in the glue tank 40, the liquid level sensor 41 can monitor the liquid level of the glue solution in the glue tank 40 in real time, the liquid level sensor 41 and the liquid level switch 42 are electrically connected with the controller 61, and when the liquid level of the glue solution in the glue tank 40 is equal to or lower than a first preset value, the liquid level sensor 41 is used for sending a first trigger signal to the controller 61. When the liquid level of the glue solution in the glue tank 40 is equal to or higher than the second preset value, the liquid level sensor 41 is configured to send a second trigger signal to the controller, so that the controller 61 can control the on/off of the liquid level switch 42 according to the first trigger signal or the second trigger signal, and thus the glue solution is replenished into the glue tank 40 or stopped to be replenished through the power unit 20, so that the glue solution in the glue tank 40 is maintained between the first preset value and the second preset value.

It will be appreciated that the level sensor 41 of the present utility model is a prior art and can be obtained by direct purchase, the level sensor 41 (hydrostatic level gauge/level transmitter/level sensor) being a pressure sensor for measuring the liquid level. The static pressure input type liquid level transmitter (liquid level meter) is based on the principle that the measured liquid static pressure is proportional to the height of the liquid, adopts an isolated diffusion silicon sensitive element or a ceramic capacitance pressure sensitive sensor, converts the static pressure into an electric signal, and then converts the electric signal into a standard electric signal through temperature compensation and linear correction, thereby being applicable to liquid level measurement of various media in petrochemical industry, metallurgy, electric power, pharmacy, water supply and drainage, environmental protection and other systems and industries.

In this embodiment, the hot melt adhesive body further includes a control cabinet 60, and the controller 61 is integrated in the control cabinet 60.

In some embodiments, the controller 61 is configured to send a closing signal to the liquid level switch 42 according to the first trigger signal, and make the power unit 20 supplement the glue solution into the glue tank 40 through the glue outlet pipe 30, or send an opening signal to the liquid level switch 42 according to the second trigger signal, and disconnect the glue outlet pipe 30 from the glue tank 40 to stop the power unit 20 from delivering the glue solution into the glue tank 40; wherein the first preset value is smaller than the second preset value. When the liquid level of the glue solution in the glue tank 40 is equal to or lower than a first preset value, a closing signal is sent by the controller 61 according to the first trigger signal liquid level switch 42, so that the glue barrel 10 and the glue tank 40 are communicated through the glue outlet pipe 30, then the glue solution in the glue barrel is conveyed into the glue tank 40 by the power unit 20, when the glue solution in the glue tank 40 is supplemented to a second preset value, the glue solution in the glue tank 40 is supplemented in place, then the controller 61 sends an opening signal to the liquid level switch 42 according to the second trigger signal, and the glue outlet pipe 30 is disconnected from the glue tank 40 to stop the power unit 20 from conveying the glue solution into the glue tank 40, so that the glue solution in the glue tank 40 is always maintained in a reasonable interval.

In this embodiment, the controller 61 may be a PLC, i.e., a programmable logic controller, which is a digital operation electronic system designed specifically for application in an industrial environment. It adopts a programmable memory, in its interior is stored the instruction for executing logic operation, sequence control, timing, counting and arithmetic operation, etc. and utilizes digital or analog input and output to control various mechanical equipments or production processes.

In some embodiments, the power unit 20 is configured to deliver the glue solution in the glue barrel 10 to the glue tank 40 through the glue outlet pipe 30 when the liquid level switch 42 is closed, and to stop delivering the glue solution in the glue barrel to the glue tank 40 through the glue pipe when the liquid level switch 42 is opened. The power unit 20 is used for providing power to convey melted glue in the glue tank 10 to the glue tank 40 according to the requirement, namely, the power unit 20 represents that the glue tank 40 is insufficient in glue amount and needs to be replenished when the liquid level switch 42 is closed, so that the controller controls the power unit 20 to convey the glue in the glue tank 10 to the glue tank 40 through the glue outlet pipe 30, and when the glue amount in the glue tank 40 is sufficient, the controller 61 controls the liquid level switch 42 to be opened, and the power unit 20 stops conveying the glue in the glue tank 10 to the glue tank 40 through the glue pipe.

In some embodiments, the fluid infusion assembly further includes a timing module 63, the timing module 63 is electrically connected to the controller 61, the timing module 63 is configured to calculate a time for the single operation of the power unit 20, when the fluid level of the fluid in the fluid reservoir 40 is raised from the first preset value to the second preset value by the power unit 20 to be the first preset time under the condition that the fluid in the fluid reservoir is sufficient, and when the actual time of the single operation of the power unit 20 recorded by the timing module 63 is greater than the first preset time, the timing module 63 sends a third trigger signal to the controller 61, and the controller 61 controls the power unit 20 to stop operating according to the third trigger signal. In order to further ensure whether the glue solution amount in the glue barrel 10 is sufficient, by arranging the timing module 63, under the condition that the glue solution in the glue barrel 10 is sufficient, the time that the power unit 20 rises the liquid level of the glue solution in the glue tank 40 from the first preset value to the second preset value is the first preset time, so that in the actual working process of the power unit 20, along with the consumption of the glue solution amount in the glue barrel 10, when the actual time of the single action of the power unit 20 recorded by the timing module 63 is greater than the first preset time, the situation that the glue solution amount in the glue barrel 10 is insufficient or no glue solution exists can be judged, thereby solving the problem of glue solution residue in the glue barrel 10, and being convenient for a worker to replace the glue barrel 10 or supplement the glue solution in time.

In some embodiments, the fluid infusion assembly further includes a speaker 62, the speaker 62 being electrically connected to the controller 61, the speaker 62 being controlled to voice broadcast when the controller 61 receives a third trigger signal. Through being provided with speaker 62 at the fluid replacement subassembly, when the glue solution volume is not enough or has not had the glue solution in the glue barrel 10, can control speaker 62 to carry out voice broadcast when controller 61 received the third trigger signal, be convenient for remind the staff in time to change glue barrel 10 or to supplementary glue solution in the glue barrel.

The voice broadcast information of the speaker 62 may be various, for example, the broadcast information may be voice prompts such as "beep", "click" or "please supplement glue solution". In this embodiment, the broadcast information is a ticker.

In some embodiments, the power unit 20 includes two cylinders 21 and a platen assembly, the output ends of the two cylinders 21 are connected to the platen assembly together through a connecting rod 22, so as to drive the platen assembly to lift up and down, and the platen assembly is used for melting the glue in the glue barrel 10 near one side of the platen assembly and pressing the melted glue into the glue outlet pipe 30. The driving end of the air cylinder 21 is connected with the connecting rod 22, and the connecting rod 22 is connected with the pressure plate assembly, so that the pressure plate assembly can heat and squeeze the colloid in the colloid barrel, and the colloid is conveyed into the colloid pool 40 through the rubber outlet pipe 30.

Wherein, the power unit 20 of the hot melt adhesive machine is prior art, the pressure disk subassembly can include pressure disk 23 and gear pump 24, the glue mode of the hot melt adhesive machine in this scheme adopts for the gear pump, the glue mode adopts for the pressure disk, it can be understood that the pressure disk is the heating portion and is an aluminum alloy heating plate, the heating plate from the top down impresss in the glue bucket during the use, the heating plate is located the colloid top, when the heating plate heats, only the upper one deck glue contacts with the heating plate, make it reach the fusing point and melt, glue bucket lower part does not heat this moment, how much melt during the production, avoid glue long-time heating and ageing go bad. Isolation of gum from air during melt adhesive: the O-shaped ring is arranged between the heating disc and the inner wall of the rubber barrel, so that the melted liquid colloid can not contact with air, and the requirement of the PUR on the service condition is met. The pressure plate 23 is precisely cast by aluminum alloy, CNC is precisely machined, the outer surface of the heating plate is subjected to deep infiltration sintering treatment by DuPont Teflon, and the vacuum coating has the advantages of high strength, difficulty in falling off and the like.

In some embodiments, the bottom of the tub 10 is provided with a support base 50, and the support base 50 is used to support the tub 10 and the power unit 20. By providing the support base 50 at the bottom of the glue barrel 10, the support base 50 can provide support for the hot melt adhesive machine, so that the integrity of the hot melt adhesive machine is stronger.

In some embodiments, referring to fig. 2, the bottom of the glue barrel 10 is concavely formed with a recess, and the supporting base 50 is provided with a protrusion 51 at a position corresponding to the recess, and the protrusion 51 matches the shape of the recess. Because the bottom indent of glue bucket 10 is formed with the depressed part, through being provided with bellying 51 at the top of supporting base 50, and bellying 51 matches with the shape of depressed part, the effectual deformation that eliminates glue bucket at pressure disk 23 in-process of pressing down that utilizes bellying 51 like this makes the bottom of pressure disk 23 and PUR glue bucket more laminate to reach the glue utilization ratio in the improvement glue bucket 10.

In some embodiments, the glue reservoir 40 is rectangular or cylindrical in shape. Alternatively, the glue reservoir 40 is rectangular in shape.

It should be noted that the features of the embodiments of the present utility model may be combined with each other without conflict.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A hot melt adhesive machine, comprising:

the hot melt adhesive machine body comprises an adhesive barrel and a power unit, wherein adhesive liquid is stored in the adhesive barrel, the adhesive barrel is communicated with an adhesive outlet pipe, an adhesive outlet end of the adhesive outlet pipe is connected with an adhesive tank for temporarily storing the adhesive liquid, the adhesive tank is connected with an adhesive gun, and the power unit is used for conveying the adhesive liquid in the adhesive barrel to the adhesive tank through the adhesive outlet pipe;

the hot melt adhesive machine body further comprises a liquid supplementing assembly, wherein the liquid supplementing assembly is used for controlling the power unit to supplement the adhesive liquid into the adhesive tank so as to maintain the liquid level of the adhesive liquid in the adhesive tank between a first preset value and a second preset value.

2. The hot melt adhesive machine according to claim 1, wherein the fluid replacement assembly comprises a fluid level sensor, a controller and a fluid level switch, wherein the fluid level sensor and the fluid level switch are electrically connected with the controller, and the fluid level sensor is arranged in the adhesive tank and used for monitoring the fluid level of the adhesive solution in the adhesive tank; the liquid level switch is arranged on the rubber outlet pipe, when the liquid level of the glue solution in the glue pool is equal to or lower than a first preset value, the liquid level sensor is used for sending a first trigger signal to the controller, and when the liquid level of the glue solution in the glue pool is equal to or higher than a second preset value, the liquid level sensor is used for sending a second trigger signal to the controller; the controller is used for controlling the opening and closing of the liquid level switch according to the first trigger signal or the second trigger signal so as to supplement glue solution into the glue pool or stop supplementing glue solution through the power unit.

3. The hot melt adhesive machine according to claim 2, wherein the controller is configured to send a closing signal to the liquid level switch according to the first trigger signal, and make the power unit supplement the adhesive solution into the adhesive tank through the adhesive outlet pipe, or send an opening signal to the liquid level switch according to the second trigger signal, and disconnect the adhesive outlet pipe from the adhesive tank to stop the power unit from delivering the adhesive solution into the adhesive tank; wherein the first preset value is smaller than the second preset value.

4. A hot melt adhesive machine according to claim 3, wherein the power unit is configured to deliver the adhesive solution in the adhesive tank to the adhesive tank through the adhesive outlet pipe when the liquid level switch is closed, and to stop delivering the adhesive solution in the adhesive tank to the adhesive tank through the adhesive pipe when the liquid level switch is opened.

5. The hot melt adhesive machine according to claim 4, wherein the fluid infusion assembly further comprises a timing module, the timing module is electrically connected with the controller, the timing module is used for calculating time of single operation of the power unit, when the adhesive liquid in the adhesive tank is sufficient, the power unit rises the liquid level of the adhesive liquid in the adhesive tank from the first preset value to the second preset value for a first preset time, and when the actual time of single operation of the power unit recorded by the timing module is greater than the first preset time, the timing module sends a third trigger signal to the controller, and the controller controls the power unit to stop operating according to the third trigger signal.

6. The hot melt adhesive machine of claim 5, wherein the fluid replacement assembly further comprises a speaker electrically connected to the controller, the speaker being controlled to perform a voice broadcast when the controller receives the third trigger signal.

7. The hot melt adhesive machine according to claim 1, wherein the power unit comprises two cylinders and a pressure plate assembly, the output ends of the two cylinders are connected with the pressure plate assembly through connecting rods together so as to drive the pressure plate assembly to lift up and down, and the pressure plate assembly is used for melting the adhesive in the adhesive barrel close to one side of the pressure plate assembly and pressing the melted adhesive into the adhesive outlet pipe.

8. The hot melt adhesive machine of claim 7, wherein a support base is provided at the bottom of the adhesive barrel for supporting the adhesive barrel and the power unit.

9. The hot melt adhesive machine according to claim 8, wherein a concave portion is formed at the bottom of the adhesive barrel, and a convex portion is provided at a position corresponding to the concave portion on the support base, and the convex portion is matched with the concave portion in shape.

10. The hot melt adhesive machine of claim 1, wherein the adhesive bath is rectangular or cylindrical in shape.