CN219408355U - Negative pressure detection switch and cigarette making machine - Google Patents
Negative pressure detection switch and cigarette making machine Download PDFInfo
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- CN219408355U CN219408355U CN202320463781.2U CN202320463781U CN219408355U CN 219408355 U CN219408355 U CN 219408355U CN 202320463781 U CN202320463781 U CN 202320463781U CN 219408355 U CN219408355 U CN 219408355U
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Abstract
The utility model discloses a negative pressure detection switch and a cigarette making machine, wherein the negative pressure detection switch comprises a negative pressure detection module, a wiring terminal and a light emitting diode; the wiring terminal is provided with a first wiring terminal and a second wiring terminal; the first wiring terminal is electrically connected with the positive electrode of the power supply, and the second wiring terminal is electrically connected with the negative electrode of the power supply; the positive electrode of the light-emitting diode is electrically connected with the normally open contact of the negative pressure detection module, and the negative electrode of the light-emitting diode is electrically connected with the second wiring terminal; the positive power end of the negative pressure detection module is electrically connected with the first wiring end, and the negative power end of the negative pressure detection module is grounded. The negative pressure detection switch provided by the utility model is provided with the light emitting diode, whether the pressure reaches a preset value can be intuitively judged (detected by the negative pressure detection switch) through whether the light emitting diode emits light, and further whether equipment generating a negative pressure environment works normally is determined, so that the equipment can be found out in time and maintained in time when the equipment fails.
Description
Technical Field
The embodiment of the utility model relates to a detection device technology, in particular to a negative pressure detection switch and a cigarette making machine.
Background
In the tobacco production and processing process, a pneumatic cut tobacco feeding pipeline is generally adopted to remotely convey cut tobacco from a cut tobacco making line to a wrapping line, when a cigarette machine needs materials, the pipeline is started under negative pressure, the cut tobacco is sucked from a discharging bin of the cut tobacco making and feeding machine, and the action of the cut tobacco feeding machine is controlled by a negative pressure detection switch at an inlet of the pipeline.
At present, the negative pressure detection switch used in the industry has a simple structure, not only lacks state display, but also has the problems that a detection signal is not matched with the negative pressure of a pipeline and the like because the cover plate is easy to separate and fall off, and the defects bring great inconvenience to production and maintenance.
Based on the above-mentioned problem, what is needed is a negative pressure detection switch with visual state, which can visually display the state of the negative pressure detection switch, and effectively solve the problem of falling off and separating the cover plate, assist in manually setting a reasonable negative pressure detection value, and improve the accuracy of the negative pressure detection switch, thereby eliminating the risk of blocking or breaking the wind wire feeding pipeline and improving the efficiency of the wire feeding system during maintenance.
Disclosure of Invention
The utility model provides a negative pressure detection switch and a cigarette making machine, so as to achieve the purpose of visualizing the pressure detection state of the negative pressure detection switch.
In a first aspect, an embodiment of the present utility model provides a negative pressure detection switch, including: the negative pressure detection module, the wiring terminal and the light emitting diode;
the wiring terminal is provided with a first wiring terminal and a second wiring terminal;
the first wiring terminal is electrically connected with the positive electrode of the power supply, and the second wiring terminal is electrically connected with the negative electrode of the power supply;
the positive electrode of the light-emitting diode is electrically connected with the normally open contact of the negative pressure detection module, and the negative electrode of the light-emitting diode is electrically connected with the second wiring terminal;
the positive power end of the negative pressure detection module is electrically connected with the first wiring end, and the negative power end of the negative pressure detection module is grounded.
Optionally, the device further comprises a sleeve, and the negative pressure detection module, the wiring terminal and the light emitting diode are fixed in the sleeve.
Optionally, the sleeve further comprises a cover plate hinged to the outer surface of the sleeve.
Optionally, the system further comprises an analog signal acquisition module;
the wiring terminal is also provided with a third wiring terminal, and the normally open contact is also electrically connected with the analog signal acquisition module through the third wiring terminal.
Optionally, the light emitting diode is further configured with a current limiting resistor;
the positive electrode of the light emitting diode is electrically connected with the normally open contact of the negative pressure detection module through the current limiting resistor.
Optionally, the connection terminal is a female connection terminal.
Optionally, the LED lamp further comprises a wire fixing device, wherein the wiring terminal is respectively connected with the positive electrode and the negative electrode of the LED through wires, and the positive power end of the negative pressure detection module is electrically connected;
the wire fixing device is used for fixing the wire on the surface of the negative pressure detection module.
Optionally, the wire holder comprises a plurality of prongs.
Optionally, the negative pressure detection module is powered by a 24V power supply.
In a second aspect, the embodiment of the utility model also provides a cigarette making machine, which comprises the negative pressure detection switch described in the embodiment of the utility model.
Compared with the prior art, the utility model has the beneficial effects that: the utility model provides a negative pressure detection switch, which comprises a negative pressure detection module and a light emitting diode, wherein the negative pressure detection module is provided with a normally open contact, a positive power end, a normally open contact, the light emitting diode and a negative power end of the negative pressure detection module form a negative pressure detection signal indication branch, when the pressure reaches a preset value, the negative pressure detection signal indication branch is conducted, the light emitting diode emits light, otherwise, the light emitting diode does not emit light, whether the pressure reaches the preset value can be intuitively judged through whether the light emitting diode emits light, and further whether equipment generating a negative pressure environment works normally is determined, so that the equipment can be found out timely and maintained timely when the equipment fails.
Drawings
FIG. 1 is a block diagram of a negative pressure detection switch in an embodiment;
FIG. 2 is a block diagram of another negative pressure detection switch in an embodiment;
fig. 3 is a schematic diagram of the negative pressure detection switch in the embodiment.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
Example 1
Fig. 1 is a block diagram of a negative pressure detection switch in the embodiment, and referring to fig. 1, the negative pressure detection switch includes: the negative pressure detection module 100, the wiring terminal 200 and the light emitting diode 300;
the connection terminal 200 is configured with a first terminal and a second terminal;
the first terminal is electrically connected with the positive electrode of the power supply (VCC), and the second terminal is electrically connected with the negative electrode of the power supply;
the positive electrode of the light emitting diode 300 is electrically connected with the normally open contact of the negative pressure detection module 100, and the negative electrode of the light emitting diode 300 is electrically connected with the second wiring terminal;
the positive power supply end of the negative pressure detection module 100 is electrically connected to the first terminal, and the negative power supply end of the negative pressure detection module 100 is grounded.
In this embodiment, the voltage value of the power supply VCC is not limited, and VCC may be 3.3-24V.
In this embodiment, according to the voltage value of the power VCC and the type of the led 300, a current limiting resistor may be further configured for the led 300, if necessary;
at this time, the positive electrode of the light emitting diode 300 may be configured to be electrically connected to the normally open contact of the negative pressure detection module 100 through the current limiting resistor.
In the present embodiment, the specific form of the connection terminal 200 is not limited, and a male connection terminal or a female connection terminal may be adopted as the connection terminal 200.
In this embodiment, the negative pressure detection module 100 is configured to determine whether the (vacuum) pressure in the specified pipeline or region reaches a preset value, and when the pressure reaches the preset value, the negative pressure detection module 100 outputs an electrical signal, and when the pressure does not reach the preset value, the negative pressure detection module 100 does not output an electrical signal.
In this embodiment, the specific structure and the corresponding working principle of the negative pressure detection module 100 are not limited;
for example, the negative pressure detection module 100 may be internally configured with mechanical micro-motion structures that may include pressure sensing devices (e.g., diaphragms, bellows, pistons, etc.), rail springs, and normally open contacts;
when the pressure is increased, the sensing pressure component deforms and drives the railing spring upwards to move, and finally the normally open contact at the uppermost end of the railing spring is triggered to be closed, so that a loop where the normally open contact is located is conducted, and an electric signal is output (at the normally open contact end).
In this embodiment, the negative pressure detection switch is disposed in a pipeline or an area where the pressure to be detected is located, and a normally open contact in the negative pressure detection module 100 is configured to be connected to a positive power supply end thereof, where the working mode of the negative pressure detection switch includes:
when the pressure reaches a set value, a normally open contact of the negative pressure detection module 100 is closed, a high-level signal (namely a power voltage signal of the negative pressure detection module 100) is output at the normally open contact, at this time, a loop where the light emitting diode 300 is positioned is conducted, and the light emitting diode 300 emits light;
when the pressure does not reach the set value, the normally open contact of the negative pressure detection module 100 is opened, and at this time, the circuit in which the light emitting diode 300 is located is opened, and the light emitting diode 300 does not emit light.
Illustratively, in this embodiment, the negative pressure detection switch is configured with the connection terminal 200, and based on the connection terminal 200, the connection difficulty of the negative pressure detection switch in actual use is reduced, and the usability of the negative pressure detection switch is improved.
In the present embodiment, the relative positions among the negative pressure detection module 100, the connection terminal 200, and the light emitting diode 300 are not particularly limited;
for example, the connection terminal 200 and the light emitting diode 300 may be disposed on the surface of the negative pressure detection module 100, or the negative pressure detection module 100 may be disposed in a region where the pressure is to be detected, and the connection terminal 200 and the light emitting diode 300 may be disposed in another designated region, and the negative pressure detection module 100, the connection terminal 200 and the light emitting diode 300 may be connected by a long wire.
The embodiment provides a negative pressure detection switch, which comprises a negative pressure detection module and a light emitting diode, wherein the negative pressure detection module is provided with a normally open contact, a positive power end, the normally open contact, the light emitting diode and a negative power end of the negative pressure detection module form a negative pressure detection signal indication branch, when the pressure reaches a preset value, the negative pressure detection signal indication branch is conducted, the light emitting diode emits light, otherwise, the light emitting diode does not emit light, whether the pressure reaches the preset value can be intuitively judged through whether the light emitting diode emits light, and whether equipment generating a negative pressure environment works normally is further determined, so that the equipment can be found timely and maintained timely when the equipment fails.
On the basis of the scheme shown in fig. 1, the negative pressure detection switch further comprises a sleeve, and the negative pressure detection module, the wiring terminal and the light emitting diode are fixed in the sleeve.
In this scheme, set up negative pressure detection module, binding post and emitting diode and fix in the sleeve, adopt the sleeve to realize the protection to above-mentioned device, make negative pressure detection switch constitute a whole simultaneously, be convenient for negative pressure detection switch's installation and use.
When the negative pressure detection switch is configured with the sleeve, in one possible embodiment, the negative pressure detection switch further comprises a cover plate hinged to an outer surface of the sleeve.
In the scheme, a cover plate is arranged at the top end of the sleeve, when the luminous state of the light-emitting diode needs to be checked, the cover plate can be opened, and when the luminous state of the light-emitting diode does not need to be checked, the cover plate can be covered;
based on the cover plate, when the luminous state of the light emitting diode does not need to be checked, the wiring terminal and the wires in the negative pressure detection switch can be prevented from being exposed in the environment, so that the possibility of damaging the wiring terminal or the wires due to environmental factors is reduced, and the safety and the reliability of the negative pressure detection switch are improved;
in addition, the cover plate is hinged with the sleeve, the cover plate can be turned over relative to the sleeve in a larger angle range, and falling, separation and deletion of the cover plate can be effectively avoided.
FIG. 2 is a block diagram of another example negative pressure detection switch, referring to FIG. 2, in one possible embodiment, the negative pressure detection switch further includes an analog signal acquisition module 400;
the connection terminal 200 is further configured with a third terminal, and the normally open contact is further electrically connected to the analog signal acquisition module 400 through the third terminal.
For example, in the present embodiment, the specific form of the analog signal acquisition module 400 is not specifically limited, and for example, an MCU (Microcontroller Unit, micro control unit), a PLC (Programmable Logic Controller ) or the like may be used as the analog signal acquisition module 400.
Illustratively, in this embodiment, when the pressure reaches the set value, the normally open contact of the negative pressure detection module 100 is closed, and a high level signal is output at the normally open contact, and at this time, the analog signal acquisition module 400 acquires the high level signal.
For example, in this embodiment, the analog signal acquisition module 400 may be configured to acquire the high-level signal and then make a preset program, for example, perform counting operation, generate a coordinated control instruction for other devices, and so on.
In this scheme, through configuration analog signal acquisition module 400, can extend negative pressure detection switch's function, do benefit to and make negative pressure detection switch carry out linkage etc. with appointed equipment, improved negative pressure detection switch's practicality.
Based on the scheme shown in fig. 1, in one possible embodiment, the negative pressure detection switch further comprises a wire fixing device, and the wiring terminals are respectively and electrically connected with the power supply, the light emitting diode and the analog signal acquisition module through wires;
the wire fixer is used for fixing the wire on the surface of the negative pressure detection module.
In the scheme, a negative pressure detection module, a wiring terminal and a light emitting diode are configured and arranged together, and specifically, the wiring terminal and the light emitting diode are fixed on the surface of the negative pressure detection module;
in addition, the configuration wiring terminal is electrically connected with the power supply, the light emitting diode and the analog signal acquisition module through wires respectively.
In this scheme, will connect the wire of above-mentioned device and fix at negative pressure detection module's surface through solidus ware, can reduce the cracked risk that the wire leads to because of the random removal, and then improve negative pressure detection switch's reliability in use.
In one embodiment, when the negative pressure detection switch is configured with a wire holder, further, the wire holder includes a plurality of prongs.
In the scheme, the wire fixing device is conveniently fixed on the surface of the negative pressure detection module through the screw based on the fork joint, and then the wire is fixed on the surface of the negative pressure detection module.
In this embodiment, any of the above-mentioned negative pressure detection switches may be freely arranged and combined, and fig. 3 is a schematic diagram of the structure of the negative pressure detection switch in the embodiment, and referring to fig. 3, for example, in one possible embodiment, the negative pressure detection switch includes:
the negative pressure detection module 100, the wiring terminal 200, the light emitting diode 300 and the sleeve 1;
the negative pressure detection module 100, the wiring terminal 200 and the light emitting diode 300 are arranged in the sleeve 1, wherein a platform is arranged in the sleeve 1, the wiring terminal 200 and the light emitting diode 300 are fixed on the platform, and part of the negative pressure detection module 100 is exposed on the platform;
the wire fixing device 400 is used for fixing the wires on a platform in the sleeve 1, and the wire fixing device 400 is used for fixing the wires on the platform in the sleeve 1;
the connection terminal 200 is configured with a first terminal, a second terminal, and a third terminal;
the first wiring terminal is electrically connected with the positive electrode of the power supply, and the second wiring terminal is electrically connected with the negative electrode of the power supply;
the positive electrode of the light emitting diode 300 is electrically connected with the normally open contact of the negative pressure detection module 100 through a current limiting resistor (not shown in the figure), and the negative electrode of the light emitting diode 300 is electrically connected with the second wiring terminal;
the positive power end of the negative pressure detection module 100 is electrically connected with the first wiring end, the negative power end of the negative pressure detection module 100 is grounded, and the normally open contact is also electrically connected with the analog signal acquisition module through the third wiring end;
the cover plate 2 is hinged to the outer surface of the sleeve 1 through a hinge part 21, and the cover plate 2 can rotate relative to the sleeve 1 based on the hinge part 21;
the cover plate 2 is further provided with a first buckling part 22, the outer surface of the sleeve 1 is further provided with a second buckling part 23, and the first buckling part 22 and the second buckling part 23 are used for locking the cover plate 2 and the sleeve 1 when the cover plate 2 is closed.
In this solution, the setting power source adopts a 24V power source, and the setting wire fixer 400 includes a plurality of forked joints, which are used to fix the wire fixer 400 on the platform in the sleeve 1 by matching with screws.
In this scheme, the connection terminal 200 is set as a 3Pin female connection terminal, and the negative pressure detection switch is set to be configured with four wires, which are marked as a first wire, a second wire, a third wire and a fourth wire;
a first wire is configured to connect the anode of the light emitting diode 300, the current limiting resistor and the normally open contact of the negative pressure detection module 100, and a second wire is configured to connect the cathode of the light emitting diode 300 and the second terminal;
a third wire is configured to connect the 24V positive power supply terminal of the negative pressure detection module 100 with the first wiring terminal located inside the wiring terminal 200;
a fourth wire is configured to connect the normally open contact of the negative pressure detection module 100 with a third terminal located inside the connection terminal 200;
the first terminal, the second terminal and the third terminal are respectively used for being electrically connected with the positive electrode of the 24V power supply, the negative electrode of the 24V power supply and the analog signal acquisition module.
In the scheme, a negative pressure detection switch is arranged in a control system of a wind power wire feeding pipeline (of a cigarette making system), when a cigarette making machine needs materials to suck wires at a negative pressure, if a negative pressure detection module is switched on, a normally open contact is switched on, a light emitting diode is lighted, and meanwhile, an analog signal acquisition module receives a switching value signal;
if the negative pressure detection module is not connected, the light emitting diode is extinguished, and meanwhile, the analog signal acquisition module has no switching value signal;
when the cover plate is turned over, the state visualization of the negative pressure detection switch can be realized through the luminous state of the light-emitting diode, and the negative pressure detection switch has higher practical value.
On the basis of the beneficial effects of the scheme shown in fig. 1, in the scheme, the negative pressure detection switch is provided with the cover plate and the sleeve, the negative pressure detection module, the wiring terminal and the light-emitting diode are arranged in the sleeve, the cover plate is hinged with the sleeve, the service life of the negative pressure detection switch can be effectively prolonged based on the cover plate and the sleeve, the flow stability of the wire supply system is improved, the manual inspection and maintenance are convenient, the structure is simple, the use is convenient, and the practical value is extremely high.
Example two
The embodiment provides a cigarette making machine, which comprises any negative pressure detection switch described in the first embodiment, and the structure, the working principle and the beneficial effects of the negative pressure detection switch are the same as those of the corresponding matters described in the first embodiment, and are not repeated here.
Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.
Claims (10)
1. A negative pressure detecting switch, characterized by comprising: the negative pressure detection module, the wiring terminal and the light emitting diode;
the wiring terminal is provided with a first wiring terminal and a second wiring terminal;
the first wiring terminal is electrically connected with the positive electrode of the power supply, and the second wiring terminal is electrically connected with the negative electrode of the power supply;
the positive electrode of the light-emitting diode is electrically connected with the normally open contact of the negative pressure detection module, and the negative electrode of the light-emitting diode is electrically connected with the second wiring terminal;
the positive power end of the negative pressure detection module is electrically connected with the first wiring end, and the negative power end of the negative pressure detection module is grounded.
2. The negative pressure detection switch of claim 1, further comprising a sleeve, the negative pressure detection module, the wiring terminal, and the light emitting diode being secured within the sleeve.
3. The negative pressure detecting switch of claim 2, further comprising a cover plate hinged to an outer surface of the sleeve.
4. The negative pressure detection switch of claim 1, further comprising an analog signal acquisition module;
the wiring terminal is also provided with a third wiring terminal, and the normally open contact is also electrically connected with the analog signal acquisition module through the third wiring terminal.
5. The negative pressure detection switch of claim 1, wherein the light emitting diode is further configured with a current limiting resistor;
the positive electrode of the light emitting diode is electrically connected with the normally open contact of the negative pressure detection module through the current limiting resistor.
6. The negative pressure detecting switch of claim 1, wherein the terminal is a female terminal.
7. The negative pressure detection switch according to any one of claims 1 or 2, further comprising a wire holder, wherein the connection terminal is electrically connected with the positive electrode and the negative electrode of the light emitting diode respectively through wires, and the positive power supply end of the negative pressure detection module is electrically connected with the positive electrode;
the wire fixing device is used for fixing the wire on the surface of the negative pressure detection module.
8. The negative pressure detection switch of claim 7, wherein the wire holder includes a plurality of prongs.
9. The negative pressure detection switch of claim 1, wherein the negative pressure detection module is powered by a 24V power supply.
10. A cigarette making machine comprising a negative pressure detecting switch according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320463781.2U CN219408355U (en) | 2023-03-10 | 2023-03-10 | Negative pressure detection switch and cigarette making machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320463781.2U CN219408355U (en) | 2023-03-10 | 2023-03-10 | Negative pressure detection switch and cigarette making machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219408355U true CN219408355U (en) | 2023-07-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320463781.2U Active CN219408355U (en) | 2023-03-10 | 2023-03-10 | Negative pressure detection switch and cigarette making machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219408355U (en) |
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2023
- 2023-03-10 CN CN202320463781.2U patent/CN219408355U/en active Active
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