CN216768443U - Reversing valve suitable for packaging machine - Google Patents
Reversing valve suitable for packaging machine Download PDFInfo
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- CN216768443U CN216768443U CN202220290837.4U CN202220290837U CN216768443U CN 216768443 U CN216768443 U CN 216768443U CN 202220290837 U CN202220290837 U CN 202220290837U CN 216768443 U CN216768443 U CN 216768443U
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Abstract
The utility model discloses a reversing valve suitable for a packaging machine, and relates to the technical field of packaging machinery. The utility model comprises a negative pressure cavity and a load connecting cavity, wherein one end of the negative pressure cavity is provided with a vent communicated with the atmosphere, the other end of the negative pressure cavity is provided with a communicating port communicated with the load connecting cavity, and one end of the load connecting cavity is provided with a pressure relief port for pressure relief; the pressure relief opening is correspondingly provided with a pressure relief valve core, the communication opening is correspondingly provided with a communication valve core, the vent opening is correspondingly provided with a vent valve core, and the pressure relief valve core, the communication valve core and the vent valve core are driven by the driving assembly to be linked. Compared with the traditional three-way valve body structure, the vacuum suction type three-way valve has the advantages that after the load connecting cavity is disconnected from the negative pressure cavity, the vacuum suction type three-way valve body structure can be immediately communicated with the atmosphere, the negative pressure in the load connecting cavity is discharged, the stability of the operation of the process of sucking and discharging materials under the negative pressure can be effectively guaranteed, the structure is compact, the size is small, the cost is low, the noise is low, the sucking and discharging time of the sucking disc is shortened, and the vacuum suction type three-way valve body structure is stable and reliable.
Description
Technical Field
The utility model relates to the technical field of packaging machinery, in particular to a reversing valve suitable for a packaging machine.
Background
In the field of packaging machinery, a negative pressure fan is commonly used for sucking and discharging materials or sucking raised dust away by negative pressure, no matter the negative pressure fan is used for sucking and discharging materials or sucking raised dust, negative pressure wind power generated by the negative pressure fan needs to be stopped at a certain stage and then started again at the next stage, and the whole working state of the negative pressure needs to be repeatedly switched on and off.
There are several ways to accomplish this:
the first method comprises the following steps: the fan is turned off when the negative pressure needs to be stopped, and is turned on when the negative pressure needs to be started, so that the fan is easily damaged when the fan is repeatedly started and stopped, the residual negative pressure after the fan is stopped lasts for several seconds and cannot be immediately stopped, and a certain delay exists after the fan is started, so that the negative pressure cannot be immediately provided;
and the second method comprises the following steps: a starting butterfly valve is arranged on the negative pressure pipeline, and the butterfly valve is closed when the negative pressure needs to be stopped, so that the fan is easy to be damaged after long-time use;
and the third is that: the negative pressure pipeline is provided with two pneumatic butterfly valves, one butterfly valve is arranged in the middle of the pipeline, the other butterfly valve is arranged on the side surface of the pipeline and serves as a ventilation valve, when the negative pressure is required to stop, the butterfly valve of the channel is closed, and the ventilation valve on the side surface is opened, so that the fan is prevented from being damaged, but the mode needs a larger installation space, the installation effect is not attractive, and the cost is higher;
and fourthly: a three-way reversing valve is arranged on the negative pressure pipeline to realize the reciprocating switching between the negative pressure fan and the atmosphere channel and between the negative pressure fan and the negative pressure working channel so as to realize the repeated opening and closing of the negative pressure wind power generated by the negative pressure fan.
The above-mentioned fourth mode, it is comparatively extensive to use in the packaging machinery field at present, like the utility model patent of publication No. CN207374715U, the utility model patent of the name "be applied to three-way switching-over valve of packagine machine" authorizes the bulletin text, this utility model patent discloses a be applied to three-way switching-over valve of packagine machine, with trunk line and side pipeline intercommunication through the cavity, set up in the cavity and turn over the board, turn over the board and be used for switching negative pressure and taking a breath by gyration cylinder control gyration to overcome among the prior art or adopt to open repeatedly and close the problem that the fan leads to damaging the fan easily.
The turnover plate in the prior art is turned over in a reciprocating mode and used for switching on and off negative pressure and ventilation. The three-way reversing valve with the structure can be used in the working condition of negative pressure dust collection and is not suitable for the working condition of negative pressure material suction and discharge. In the working condition of sucking and releasing materials by negative pressure, the negative pressure suction force generated by the negative pressure suction valve disappears when the negative pressure is required to be closed, namely, a channel for providing the negative pressure suction force is required to be communicated with the atmosphere in time so as to release the negative pressure of the negative pressure suction valve.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the three-way reversing valve of the flap structure in the prior art is not suitable for the material sucking and releasing working condition, so that the material sucking and releasing is unstable and the packaging efficiency is affected. The reversing valve comprises a negative pressure cavity and a load connecting cavity, wherein one end of the negative pressure cavity is provided with a vent communicated with the atmosphere, the other end of the negative pressure cavity is provided with a communication port communicated with the load connecting cavity, and one end of the load connecting cavity is provided with a pressure relief port for pressure relief; the pressure relief valve core is correspondingly arranged at the pressure relief opening, the communicating valve core is correspondingly arranged at the communicating opening, the vent valve core is correspondingly arranged at the vent opening, and the pressure relief valve core, the communicating valve core and the vent valve core are driven by the driving assembly to be linked, wherein the linkage means that when the communicating valve core and the communicating opening are opened, the pressure relief valve core closes the pressure relief opening, and the vent valve core closes the vent opening; when the communicating valve core and the communicating port are closed, the pressure relief valve core and the pressure relief port are opened, and the vent valve core and the vent port are opened; thereby realize the intercommunication and the closure in load connection chamber and negative pressure chamber, the intercommunication and the closure of load connection chamber and atmospheric, negative pressure chamber and atmospheric intercommunication and closure. Compared with the traditional three-way valve body structure, the vacuum suction type three-way valve has the advantages that after the load connecting cavity is disconnected from the negative pressure cavity, the vacuum suction type three-way valve body structure can be immediately communicated with the atmosphere, the negative pressure in the load connecting cavity is discharged, the stability of the operation of the process of sucking and discharging materials under the negative pressure can be effectively guaranteed, the structure is compact, the size is small, the cost is low, the noise is low, the sucking and discharging time of the sucking disc is shortened, and the vacuum suction type three-way valve body structure is stable and reliable.
In order to solve the problems in the prior art, the utility model is realized by the following technical scheme.
A reversing valve suitable for a packaging machine comprises a negative pressure cavity and a load connecting cavity, wherein a vent hole communicated with the atmosphere is formed in the side wall of one side of the negative pressure cavity, and a communication port communicated with the load connecting cavity is formed in the side wall of the other side of the negative pressure cavity; a pressure relief opening for pressure relief is formed in the side wall of one side of the load connection cavity; the pressure relief valve core is correspondingly arranged at the pressure relief opening, the communicating valve core is correspondingly arranged at the communicating opening, the vent valve core is correspondingly arranged at the vent opening, and the pressure relief valve core, the communicating valve core and the vent valve core are driven by the driving assembly to be linked; the linkage means that when the communicating valve core and the communicating port are opened, the pressure relief valve core closes the pressure relief port, and the vent valve core closes the vent hole; when the communicating valve core and the communicating port are closed, the pressure relief valve core and the pressure relief port are opened, and the ventilation valve core and the ventilation port are opened.
The vent hole, the communication port and the pressure relief port are coaxially arranged.
The driving assembly comprises a driving cylinder and a valve rod, the driving cylinder is connected with the valve rod, and the pressure relief valve core, the communication valve core and the vent valve core are all assembled on the valve rod.
The pressure relief valve core and the communicating valve core are two end faces of the same valve core and are positioned in the load connecting cavity.
The reversing valve also comprises a valve body, the negative pressure cavity and the load connecting cavity are both positioned in the valve body, and a negative pressure joint for connecting a negative pressure fan is arranged on the position, corresponding to the negative pressure cavity, on the valve body; and a load joint used for connecting a load component is arranged on the position, corresponding to the load connecting cavity, of the valve body.
The reversing valve further comprises a supporting seat, the supporting seat comprises a first supporting plate and a second supporting plate, the first supporting plate is fixedly assembled at one end of the valve body, and the second supporting plate is fixedly assembled at the other end of the valve body.
The driving cylinder is assembled on the first supporting plate or the second supporting plate through a mounting seat.
Compared with the prior art, the beneficial technical effects brought by the utility model are as follows:
1. compared with the traditional three-way valve body structure, the vacuum suction type three-way valve has the advantages that after the load connecting cavity is disconnected from the negative pressure cavity, the vacuum suction type three-way valve body structure can be immediately communicated with the atmosphere, the negative pressure in the load connecting cavity is discharged, the stability of the operation of the process of sucking and discharging materials under the negative pressure can be effectively guaranteed, the structure is compact, the size is small, the cost is low, the noise is low, the sucking and discharging time of the sucking disc is shortened, and the vacuum suction type three-way valve body structure is stable and reliable.
2. When the pressure relief valve core and the pressure relief opening are closed, the vent hole and the vent valve core are closed, the communication opening and the communication valve core are opened, and the negative pressure cavity and the load connection cavity form a passage to form negative pressure so as to achieve the purpose of negative pressure suction; when the communicating valve core and the communicating port are closed, the pressure relief valve core and the pressure relief port are opened at the moment, the vent valve core and the vent port are opened, the negative pressure cavity forms a passage with the external atmosphere through the vent port, the passage between the load connecting cavity and the negative pressure cavity is cut off, and the load connecting cavity forms a passage with the external atmosphere through the pressure relief port; thereby realize the intercommunication and the closure in load connection chamber and negative pressure chamber, the intercommunication and the closure of load connection chamber and atmospheric, negative pressure chamber and atmospheric intercommunication and closure.
3. The air vent, the communication port and the pressure relief port are coaxially arranged, and the linkage of the three valve cores can be controlled through one valve rod, so that the reversing valve is more compact in structure, smaller in size and quick in response.
4. Compared with the traditional three-way reversing valve, the structure of one air cylinder and one valve rod is adopted, the valve core has shorter moving stroke, so that the air suction and air discharge time of a load part (such as a sucker) is shortened, the stable and reliable operation of the load part is ensured, the problem of the blockage of the air cylinder when a plurality of guide rods exist is solved, the cost is lower, and the noise is lower.
5. The pressure relief valve core and the communicating valve core share one valve core, and the opening and closing of the pressure relief opening and the communicating opening are realized through two end faces of the valve core, so that the structure is more compact, and the valve is stable and reliable.
Drawings
FIG. 1 is a schematic perspective view of a diverter valve according to the present invention;
FIG. 2 is a schematic perspective view of a further angle of the diverter valve of the present invention;
FIG. 3 is a schematic front view of the reversing valve of the present invention;
FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3 according to the present invention;
FIG. 5 is a schematic side view of the diverter valve of the present invention;
FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 5 in accordance with the present invention;
reference numerals: 1. the negative pressure cavity, 2, the load connection cavity, 3, the vent hole, 4, the communication port, 5, the pressure relief port, 6, the pressure relief valve core, 7, the communication valve core, 8, the vent valve core, 9, the driving cylinder, 10, the valve rod, 11, the valve body, 12, the negative pressure joint, 13, the load joint, 14, the first supporting plate, 15, the second supporting plate, 16 and the mounting seat.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the drawings and the specific embodiments. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment discloses a reversing valve suitable for a packaging machine, which is shown in a figure 4 and a figure 6 in the specification, and comprises a negative pressure cavity 1 and a load connecting cavity 2 as an implementation mode of the embodiment, wherein the negative pressure cavity 1 is connected with a negative pressure fan, and the load connecting cavity 2 is used for being connected with a load component, such as a vacuum chuck, a dust cover and the like. A vent 3 communicated with the atmosphere is arranged on the side wall of one side of the negative pressure cavity 1, and a communication port 4 communicated with the load connecting cavity 2 is arranged on the side wall of the other side of the negative pressure cavity 1; a pressure relief opening 5 for pressure relief is formed in the side wall of one side of the load connection cavity 2; the pressure relief port 5 is correspondingly provided with a pressure relief valve core 6, the communication port 4 is correspondingly provided with a communication valve core 7, the vent port 3 is correspondingly provided with an air vent valve core 8, and the pressure relief valve core 6, the communication valve core 7 and the air vent valve core 8 are driven by a driving assembly to be linked. The linkage means that, as shown in fig. 4, when the communication valve core 7 and the communication port 4 are opened, the pressure relief valve core 6 closes the pressure relief port 5, and the vent valve core 8 closes the vent port 3; as shown in fig. 6, when the communication valve body 7 and the communication port 4 are closed, the relief valve body 6 and the relief port 5 are opened, and the vent valve body 8 and the vent port 3 are opened.
When the pressure relief valve core 6 and the pressure relief opening 5 are closed, the vent 3 and the vent valve core 8 are closed, the communication opening 4 and the communication valve core 7 are opened, and the negative pressure cavity 1 and the load connection cavity 2 form a passage to form negative pressure so as to achieve the purpose of negative pressure suction; when the communicating valve core 7 and the communicating port 4 are closed, the pressure relief valve core 6 and the pressure relief port 5 are opened at the moment, the vent valve core 8 and the vent port 3 are opened, the negative pressure cavity 1 forms a passage with the external atmosphere through the vent port 3, the passage between the load connecting cavity 2 and the negative pressure cavity 1 is cut off, and the load connecting cavity 2 forms a passage with the external atmosphere through the pressure relief port 5; thereby realize the intercommunication and the closure of load connection chamber 2 and negative pressure chamber 1, the intercommunication and the closure of load connection chamber 2 and atmospheric, negative pressure chamber 1 and atmospheric intercommunication and closure.
As another embodiment of this embodiment, the pressure relief valve element 6, the communication valve element 7, and the vent valve element 8 may be independently controlled by a separate driving assembly to achieve linkage therebetween. Or any two of the three valve cores share one set of driving assembly, and the other valve core independently uses one set of driving assembly; or the three valve cores share one set of driving assembly for linkage.
As still another embodiment of the present embodiment, as shown in fig. 4 and 6, the vent port 3, the communication port 4, and the relief port 5 are coaxially arranged. The linkage of three valve cores can be controlled through one valve rod 10, so that the reversing valve is more compact in structure, smaller in size and quick in response.
Further, as another embodiment of this embodiment, the driving assembly includes a driving cylinder 9 and a valve rod 10, the driving cylinder 9 is connected to the valve rod 10, and the pressure relief valve core 6, the communication valve core 7 and the vent valve core 8 are all assembled on the valve rod 10. Adopt a cylinder and a valve rod 10's structure, compare traditional tee bend switching-over valve result, case removal stroke is shorter to make the carrier (like the sucking disc) breathe in and the gassing time shortens, ensured the reliable and stable operation of carrier, and the dead problem of cylinder card when can not having many guide bars, the cost is lower, and the noise is lower.
In another embodiment of the present embodiment, the pressure relief valve element 6 and the communication valve element 7 are two end surfaces of the same valve element and are located in the load connection chamber 2. The pressure relief valve core 6 and the communication valve core 7 share one valve core, and the opening and closing of the pressure relief port 5 and the communication port 4 are realized through two end faces of the valve core, so that the structure is more compact, and the valve core is stable and reliable.
As another embodiment of this embodiment, referring to fig. 1, fig. 2, fig. 3 and fig. 5 of the specification, the reversing valve further includes a valve body 11, the negative pressure cavity 1 and the load connection cavity 2 are both located in the valve body 11, and a negative pressure joint 12 for connecting a negative pressure fan is arranged on the valve body 11 at a position corresponding to the negative pressure cavity 1; a load connection 13 for connecting load components is arranged on the valve body 11 at a position corresponding to the load connection chamber 2.
Furthermore, the reversing valve further comprises a supporting seat, the supporting seat comprises a first supporting plate 14 and a second supporting plate 15, the first supporting plate 14 is fixedly assembled at one end of the valve body 11, and the second supporting plate 15 is fixedly assembled at the other end of the valve body 11.
Further, the driving cylinder 9 is mounted on the first support plate 14 or the second support plate 15 through a mounting seat 16.
Claims (7)
1. A reversing valve suitable for a packaging machine is characterized in that: the device comprises a negative pressure cavity (1) and a load connecting cavity (2), wherein a vent hole (3) communicated with the atmosphere is formed in the side wall of one side of the negative pressure cavity (1), and a communication port (4) communicated with the load connecting cavity (2) is formed in the side wall of the other side of the negative pressure cavity (1); a pressure relief opening (5) for pressure relief is formed in the side wall of one side of the load connecting cavity (2); a pressure relief valve core (6) is correspondingly arranged at the pressure relief port (5), a communicating valve core (7) is correspondingly arranged at the communicating port (4), an air vent valve core (8) is correspondingly arranged at the air vent (3), and the pressure relief valve core (6), the communicating valve core (7) and the air vent valve core (8) are driven by a driving component to be linked; the linkage means that when the communicating valve core (7) and the communicating port (4) are opened, the pressure relief valve core (6) closes the pressure relief port (5), and the ventilation valve core (8) closes the ventilation port (3); when the communicating valve core (7) and the communicating port (4) are closed, the pressure relief valve core (6) and the pressure relief port (5) are opened, and the ventilation valve core (8) and the ventilation port (3) are opened.
2. A diverter valve adapted for use in a packaging machine as defined in claim 1, wherein: the vent hole (3), the communication hole (4) and the pressure relief hole (5) are coaxially arranged.
3. A diverter valve adapted for use in a packaging machine as defined in claim 1, wherein: the driving assembly comprises a driving cylinder (9) and a valve rod (10), the driving cylinder (9) is connected with the valve rod (10), and the pressure relief valve core (6), the communication valve core (7) and the ventilation valve core (8) are all assembled on the valve rod (10).
4. A diverter valve suitable for a packaging machine according to any one of claims 1-3, wherein: the pressure relief valve core (6) and the communication valve core (7) are two end faces of the same valve core and are positioned in the load connection cavity (2).
5. A diverter valve suitable for a packaging machine according to any one of claims 1-3, wherein: the reversing valve further comprises a valve body (11), the negative pressure cavity (1) and the load connecting cavity (2) are both positioned in the valve body (11), and a negative pressure joint (12) for connecting a negative pressure fan is arranged on the position, corresponding to the negative pressure cavity (1), on the valve body (11); and a load joint (13) for connecting a load component is arranged on the valve body (11) at a position corresponding to the load connecting cavity (2).
6. A diverter valve suitable for a packaging machine according to any one of claims 1-3, wherein: the reversing valve further comprises a supporting seat, the supporting seat comprises a first supporting plate (14) and a second supporting plate (15), the first supporting plate (14) is fixedly assembled at one end of the valve body (11), and the second supporting plate (15) is fixedly assembled at the other end of the valve body (11).
7. A diverter valve adapted for use in a packaging machine as defined in claim 6, wherein: the driving cylinder (9) of the driving assembly is assembled on the first supporting plate (14) or the second supporting plate (15) through a mounting seat (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220290837.4U CN216768443U (en) | 2022-02-14 | 2022-02-14 | Reversing valve suitable for packaging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220290837.4U CN216768443U (en) | 2022-02-14 | 2022-02-14 | Reversing valve suitable for packaging machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216768443U true CN216768443U (en) | 2022-06-17 |
Family
ID=81955397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220290837.4U Active CN216768443U (en) | 2022-02-14 | 2022-02-14 | Reversing valve suitable for packaging machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216768443U (en) |
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2022
- 2022-02-14 CN CN202220290837.4U patent/CN216768443U/en active Active
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