CN215354437U

CN215354437U - Low liquid level alarm device

Info

Publication number: CN215354437U
Application number: CN202121667914.5U
Authority: CN
Inventors: 欧阳达志; 王媛
Original assignee: Heshan Clivia Paint Co ltd
Current assignee: Heshan Clivia Paint Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2021-12-31
Anticipated expiration: 2031-07-21

Abstract

The embodiment of the utility model discloses a low liquid level alarm device, which comprises: a device main body; the coating cylinder is fixedly arranged on the device main body, and a plurality of liquid level sensors are arranged inside the coating cylinder; the paint pump is fixedly arranged on the device main body and is communicated with the paint cylinder; the control cabinet is fixedly arranged on the device main body, and the control cabinet is electrically connected with the liquid level sensor, the coating pump and the alarm respectively. The control cabinet controls the coating pump to stop working and the alarm to give an alarm by receiving an electric signal sent by the liquid level sensor when the coating in the coating cylinder is lower than a preset liquid level, so that the phenomenon that the coating pump continues to work under the condition of insufficient coating or no coating to cause uneven or unsmooth coating film sprayed on a plate is prevented, and an operator is reminded of timely guiding in the coating when the coating in the coating cylinder is insufficient.

Description

Low liquid level alarm device

Technical Field

The utility model relates to the field of curtain coating equipment, in particular to a low liquid level alarm device.

Background

The curtain coater is an automatic industrial machine specially designed and manufactured for painting and changing colors on plane sections and plates such as bamboo floors, pvc pinch plates, furniture countertops and the like. The paint film treated by the curtain coating machine has smooth surface, good plumpness, no paint build-up before and after treatment, and almost the same curtain coating effect; and the paint has high thickness and surface flatness, so the paint is widely applied to the field of industrial design.

The curtain coating machine is generally provided with a coating cylinder, the coating to be coated is stored in the coating cylinder, and the coating is uniformly sprayed onto the section bar or the plate through a spraying mechanism when the curtain coating machine works, so that a coating film with a smooth surface and good plumpness is formed. However, the curtain coating machine in the prior art has the following technical defects and shortcomings: the coating in the coating cylinder needs to be manually or automatically introduced through equipment, when the coating in the coating cylinder is lower than a preset amount, the coating needs to be supplemented in time, otherwise, the coating film sprayed on the plate is not uniform or smooth due to insufficient coating or no coating; moreover, if the paint pump runs when the paint cylinder is empty for a long time, the paint pump is easy to malfunction, and even has potential safety hazards.

Therefore, the prior art needs to invent a curtain coating machine which is reasonable in design and can avoid empty coating cylinder.

SUMMERY OF THE UTILITY MODEL

In order to overcome at least one defect in the prior art, the utility model provides a low liquid level alarm device which has the characteristics of reasonable structural design, prevention of empty paint cylinder and high safety performance.

The technical scheme adopted by the utility model for solving the problems is as follows:

a low level warning device, comprising:

a device main body;

the coating cylinder is fixedly arranged on the device main body, a plurality of liquid level sensors are arranged inside the coating cylinder, and the liquid level sensors are used for generating electric signals when the coating of the coating cylinder is lower than a preset liquid level;

the paint pump is fixedly arranged on the device main body and is communicated with the paint cylinder;

the control cabinet is fixedly arranged on the device main body and is respectively and electrically connected with the liquid level sensor, the coating pump and the alarm;

the control cabinet is used for receiving the electric signal of the liquid level sensor and controlling the paint pump to stop working and the alarm to start working according to the electric signal.

Furthermore, the control cabinet is a variable frequency control cabinet.

Furthermore, the back of the device main body is sunken towards the front end to form an installation cavity, the coating cylinder is fixedly arranged in the installation cavity, and an opening is formed in the top of the coating cylinder.

Further, still include spraying mechanism and workstation, spraying mechanism sets up the front end of device main part, just spraying mechanism with scribble the material pump intercommunication, the workstation sets up under spraying mechanism.

Further, the coating device also comprises a heater, wherein the heater is arranged adjacent to the coating cylinder and is used for preheating the coating in the coating cylinder.

Further, the coating machine further comprises a temperature detector, and a temperature sensing element of the temperature detector is arranged inside the coating cylinder.

Further, the plate winding device further comprises a driving mechanism, wherein the driving mechanism comprises a support and a belt wheel which is rotatably arranged on the support, and the belt wheel is used for winding and arranging the plate.

Further, the driving mechanism further comprises a conveying mechanism, and the conveying mechanism is arranged at the front end of the belt wheel and used for conveying the plate to the device main body.

Further, the conveying mechanism comprises a plurality of rotatable rollers, and the rollers are used for placing the plate so as to convey the plate to the device main body.

Further, still include supplementary mechanism that opens and shuts down, supplementary mechanism that opens and shuts down includes the locating lever, the locating lever is used for when the band pulley stops rotating the crimping is in on the panel of band pulley.

In summary, compared with the prior art, the low liquid level alarm device provided by the utility model at least has the following technical effects:

1) according to the low liquid level alarm device provided by the utility model, the control cabinet receives an electric signal sent by the liquid level sensor when the paint in the paint cylinder is lower than a preset liquid level, and controls the paint pump to stop working, so that the situation that the paint pump continues to work under the condition of insufficient paint or no paint is prevented, and the coating film sprayed on the plate is uneven or not smooth;

2) the low liquid level alarm device provided by the utility model is characterized in that the control cabinet controls the alarm to start working to give an alarm by receiving an electric signal sent by the liquid level sensor when the paint in the paint tank is lower than a preset liquid level, so as to remind an operator that the paint in the paint tank is insufficient and the paint needs to be introduced in time; after the paint is introduced, the alarm is released.

Drawings

FIG. 1 is a schematic structural view of a low level alarm device of the present invention;

FIG. 2 is another schematic structural view of the low level warning device of the present invention;

FIG. 3 is a cross-sectional view of a paint cylinder of the present invention;

FIG. 4 is a schematic diagram of the control system of the present invention;

FIG. 5 is a schematic structural view of the low level warning device and drive mechanism of the present invention;

FIG. 6 is a schematic structural view of the driving mechanism of the present invention;

FIG. 7 is another schematic view of the driving mechanism of the present invention;

wherein the reference numerals have the following meanings:

1. a device main body; 101. a mounting cavity; 2. a coating cylinder; 201. a liquid level sensor; 3. a paint pump; 4. a spraying mechanism; 5. a control cabinet; 6. an alarm; 7. a heater; 8. a temperature detector; 9. A horizontal work table; 10. a drive mechanism; 11. a support; 12. a pulley; 13. a plate material; 14. a conveying mechanism; 141. a roller; 15. an auxiliary start-stop mechanism; 151. and (5) positioning the rod.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1 to 4, according to an embodiment of the present invention, the low level warning apparatus includes:

device main part 1 and coating jar 2, coating jar 1 is fixed to be set up in on the device main part 2, just the inside of coating jar 2 is equipped with a plurality of level sensor 201, level sensor 201 is used for the coating of coating jar 2 produces the signal of telecommunication when being less than preset liquid level. When the paint in the paint cylinder 2 is lower than the preset liquid level, the paint is insufficient at the moment; the liquid level sensor 201 is a signal of insufficient coating in the coating tank 2 by detecting an electric signal emitted by the liquid level.

And the paint pump 3 is fixedly arranged on the device main body 1, and the paint pump 3 is communicated with the paint cylinder 2. Wherein the inner containing space of the paint cylinder 2 is used for storing the paint to be sprayed, and the paint pump 3 acts on the gravitation to convey the paint in the paint cylinder 3 to the plate material, thereby forming a coating film on the plate material.

The coating device comprises a control cabinet 5 and an alarm 6, wherein the control cabinet 5 is fixedly arranged on the device main body 1, and the control cabinet 5 is respectively and electrically connected with the liquid level sensor 201, the coating pump 3 and the alarm 6. The control cabinet 5 is electrically connected with the liquid level sensor 201, the paint pump 3 and the alarm 6 respectively, so that the control cabinet can receive an electric signal of the liquid level sensor 201 and can send out a control signal for controlling the paint pump 3 and the alarm 6.

In the technical solution of this embodiment, the control cabinet 5 is configured to receive an electrical signal from the liquid level sensor 201, and accordingly control the paint pump 3 to stop operating and the alarm 6 to start operating. Specifically, when the paint in the paint tank 2 is below a preset level (i.e., when the amount of paint is insufficient), the level sensor 201 detects and sends out an electric signal; the control cabinet 6 receives the electric signal of the liquid level sensor 201, thereby controlling the paint pump 3 to stop working, preventing the paint pump 3 from continuing working under the condition of insufficient paint or no paint, and preventing the paint film sprayed on the plate from being uneven or unsmooth, and even preventing the equipment from being failed due to an empty tank. Meanwhile, the control cabinet 5 controls the alarm 6 to start working to give an alarm so as to remind an operator that the paint in the paint cylinder 2 is insufficient, and the paint needs to be automatically introduced into the paint cylinder 2 manually or through equipment in time. More specifically, after the paint is introduced into the paint tank 2, the control cabinet 5 controls the paint pump 3 to continue operating and the alarm 6 to stop alarming.

In an alternative of this embodiment, the control cabinet 5 is a variable frequency control cabinet. The variable frequency control cabinet can realize automatic adjustment of the running speed of the paint pump 3 by changing the power supply frequency, so that the lift of the paint pump 3 is adjusted, the water spray intensity of the paint pump 3 is further adjusted, and the self-adaptive adjustment of the working state of the paint pump 3 is also realized.

Referring to fig. 2, in a preferred embodiment of the present invention, a mounting cavity 101 is formed by recessing the back of the apparatus main body 1 towards the front end, the paint cylinder 2 is fixedly disposed in the mounting cavity 101, and an opening is formed at the top of the paint cylinder 2. In the preferred scheme, the preheated coating can be directly introduced through the opening at the top of the coating cylinder 2, the uniformity and the smoothness of a sprayed coating are ensured, the preheating time does not need to be waited, the production or experimental efficiency of the curtain coating machine can be obviously improved, and the requirement of modern industrialization can be met.

Referring to fig. 1, in a further scheme of this embodiment, the low liquid level alarm device further comprises a spraying mechanism 4 and a workbench 9, wherein the spraying mechanism 4 is arranged at the front end of the device main body 1, the spraying mechanism 4 is communicated with the paint pump 3, and the workbench 9 is arranged right below the spraying mechanism 4. In this further scheme, because the coating jar 2 sets up in installation cavity 101 of device main part 1 back, and the spraying mechanism 4 then sets up the front end at device main part 1, through this kind of isolated structural design, the operator can directly be through installation cavity 101 top or dorsal opening with paint leading-in coating jar 2, need not to bypass spraying mechanism 4 or dismantle spraying mechanism 4 earlier, the coating change operation is simple and convenient and operating efficiency is high.

Referring to fig. 2, in a further development of this embodiment, the low level warning device further comprises a heater 7, said heater 7 being arranged adjacent to said coating cylinder 2 for performing a preheating operation on the coating material in said coating cylinder 2. In this further aspect, when there is no need to improve the production and experimental efficiency of the flow coating machine or to introduce the preheated paint from the outside, the paint in the paint tank 2 can be heated to a preset temperature by the heater 7 by activating the heater 7, thereby ensuring the uniformity and smoothness of the coating film. Specifically, the heater 7 may be a PTC electric heater. More specifically, the heat generating body of the PTC electric heater is disposed inside the paint tank 2 so as to exchange heat with the paint in the paint tank 2 to raise the temperature thereof to the preheating temperature.

Referring to fig. 1 and 2, in a further preferred scheme of the embodiment, the low liquid level alarm device further comprises a temperature detector 8, and a temperature sensing element of the temperature detector 8 is arranged inside the coating cylinder 2. In the preferred scheme, the temperature sensing element of the temperature detector 8 is arranged in the coating cylinder 2 and used for detecting and monitoring the temperature of the coating in real time, so that potential safety hazards caused by overhigh temperature of the coating in the coating cylinder 2 are avoided. More specifically, the temperature sensing element may be a temperature sensor.

Referring to fig. 5 and 6, in another embodiment of the present invention, the low liquid level alarm device further comprises a driving mechanism 10, wherein the driving mechanism 10 comprises a bracket 11 and a pulley 12 rotatably disposed on the bracket 11, and the pulley 12 is used for winding and disposing a sheet material 13. Specifically, when the pulley 12 is activated, the sheet material 13 wound around the outside thereof can be fed out by rotation, that is, a driving force is provided for the conveyance of the sheet material 13 from the driving mechanism 10 to the apparatus main body 1.

Referring to fig. 6, in a preferred embodiment of the present invention, the driving mechanism 10 further includes a conveying mechanism 14, and the conveying mechanism 14 is disposed at a front end of the pulley 12 and is used for conveying the sheet material 13 to the apparatus main body 1. In the preferred embodiment, the plate 13 passes through the conveying mechanism 14 before being conveyed to the worktable 9 of the device main body, and the conveying mechanism 14 is arranged to lift and support the plate 13 during conveying.

Referring to fig. 7, in a further version of this embodiment, the conveying mechanism 14 includes a plurality of rotatable rollers 141, and the rollers 141 are used for placing the sheet material 13 to convey the sheet material 13 to the apparatus main body 1. In this further aspect, by providing the rotatable roller 141, the frictional resistance between the sheet material 13 and the driving mechanism 10 can be reduced, thereby reducing the operation load of the motor and improving the conveying efficiency of the sheet material 13.

Referring to fig. 6 and 7, in a further preferred scheme of the embodiment, the low liquid level alarm device further comprises an auxiliary start-stop mechanism 15, wherein the auxiliary start-stop mechanism 15 comprises a positioning rod 151, and the positioning rod 151 is used for being pressed on the plate 13 of the belt wheel 12 when the belt wheel 12 stops rotating. In the preferred scheme, when the driving mechanism 10 is started, the belt wheel 12 rotates to convey the sheet material 13, at the moment, the positioning rod 151 of the auxiliary start-stop mechanism 15 rotates upwards to be lifted to a position where the plate material 13 is not contacted, and the belt wheel 12 works normally; when the driving mechanism 10 stops operating, the belt wheel 12 stops rotating to stop conveying the plate 13, and at this time, the positioning rod 151 of the auxiliary start-stop mechanism 15 rotates downward and lifts to press the plate 13, thereby further preventing the plate 13 from continuing to rotate and preventing the belt wheel 12 from continuing to rotate to convey the plate 13, thereby playing a role of assisting in pressing and stopping the belt wheel 12.

In summary, the low liquid level alarm device provided by the present invention, wherein the control cabinet 5 receives an electrical signal sent by the liquid level sensor 201 when the paint in the paint tank 2 is lower than the preset liquid level, and controls the paint pump 3 to stop working, so as to prevent the paint pump 3 from continuing working under the condition of insufficient paint or no paint, which results in uneven or unsmooth paint film sprayed on the sheet material 13. In addition, according to the low liquid level alarm device provided by the utility model, the control cabinet 5 receives an electric signal sent by the liquid level sensor 201 when the paint in the paint cylinder 2 is lower than a preset liquid level, and controls the alarm 6 to start working to send an alarm, so that an operator is reminded that the paint in the paint cylinder 2 is insufficient and the paint needs to be introduced in time; and after the paint is introduced, the alarm of the alarm 6 is released.

The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims

1. A low level warning device, comprising:

a device main body;

2. The low level alarm device of claim 1, wherein the control cabinet is a variable frequency control cabinet.

3. The low level warning device of claim 1, wherein the back of the device body is recessed towards the front end to form a mounting cavity, the paint cylinder is fixedly arranged in the mounting cavity, and an opening is formed in the top of the paint cylinder.

4. The low level warning device of claim 3 further comprising a spraying mechanism disposed at a front end of the device body and in communication with the paint pump, and a table disposed directly below the spraying mechanism.

5. The low level warning device of claim 4 further comprising a heater disposed adjacent to the paint tank for preheating paint in the paint tank.

6. The low level alarm device of claim 5, further comprising a temperature detector, a temperature sensing element of the temperature detector being disposed inside the paint tank.

7. The low level warning device of claim 1 further comprising a drive mechanism, the drive mechanism including a bracket and a pulley rotatably disposed on the bracket, the pulley adapted to be wrapped with a sheet material.

8. The low level warning device of claim 7 wherein the drive mechanism further comprises a transport mechanism disposed at a forward end of the pulley for transporting sheet material to the device body.

9. The low level alarm device of claim 8, wherein the conveyor mechanism comprises a plurality of rotatable rollers for receiving sheet material for conveying the sheet material to the device body.

10. The low level warning device of claim 8 further comprising an auxiliary start-stop mechanism, wherein the auxiliary start-stop mechanism comprises a positioning rod for pressing against the plate of the pulley when the pulley stops rotating.