CN217597751U - Hydraulic system for pressure relief protection of injection cavity of injection molding machine - Google Patents
Hydraulic system for pressure relief protection of injection cavity of injection molding machine Download PDFInfo
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- CN217597751U CN217597751U CN202122983491.4U CN202122983491U CN217597751U CN 217597751 U CN217597751 U CN 217597751U CN 202122983491 U CN202122983491 U CN 202122983491U CN 217597751 U CN217597751 U CN 217597751U
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Abstract
The utility model belongs to the technical field of injection molding machine hydraulic system, a hydraulic system that injection molding machine penetrated gluey chamber pressure release protection is provided, it is equipped with to penetrate gluey chamber including penetrating mucilage binding and first valve, penetrates the mucilage binding and puts, penetrates gluey chamber and is used for placing liquid, first valve with penetrate gluey chamber and be connected, first valve is used for penetrating when mucilage binding has a power failure or trouble and derives liquid. Penetrate when gluey device has a power failure or breaks down, penetrate the liquid in the gluey intracavity and produce hydraulic pressure force, through opening first valve, can derive penetrating the liquid in gluey intracavity to reach the purpose of pressure release, improve user's safety in utilization, the pressure release effect is better.
Description
Technical Field
The utility model belongs to the technical field of injection molding machine hydraulic system, especially, relate to an injection molding machine penetrates hydraulic system who glues chamber pressure release protection.
Background
At present, many executing parts on the injection molding machine are driven by hydraulic pressure, and because the executing parts are driven by the hydraulic pressure at a certain speed and pressure, when the oil cylinder drives the executing parts to execute an action, the compressed hydraulic oil in the oil cylinder can rebound. For the existing glue injection hydraulic system on the injection molding machine, when the nozzle of the glue injection oil cylinder is blocked, the front part of the material pipe can accumulate melt with higher pressure, and the oil cylinder can be pushed by the pressure to retreat, so that hydraulic oil in a glue injection cavity (a piston rod cavity) of the glue injection oil cylinder is compressed, and hydraulic pressure with a certain value is formed and stored. If the nozzle is maintained or maintained when the whole injection molding machine equipment is in a power failure state, the glue injection device is in a closed state due to the power failure of the glue injection cavity, and therefore stored hydraulic pressure cannot be released. If demolish and penetrate the mouth, penetrate the gluey chamber this moment because hydraulic pressure that hydraulic oil was compressed and is formed is released, can promote the piston rod antedisplacement, does and penetrate gluey action, then the fuse-element of the intraduct of material will be extruded, causes the waste of potential safety hazard and material.
In conclusion, in the existing injection molding machine hydraulic system technology, the technical problems of poor pressure relief effect and low safety of the injection molding machine glue injection hydraulic system exist.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an injection molding machine penetrates hydraulic system who glues chamber pressure release protection, it is including penetrating mucilage binding and putting and first valve.
The glue injection device is provided with a glue injection cavity, and the glue injection cavity is used for containing liquid.
The first valve is connected with the glue injection cavity and used for guiding out the liquid when the glue injection device is in power failure or fault.
Preferably, the first valve is a three-position four-way solenoid valve, the first valve comprises an oil port A and an oil return port T, one end of the oil port A is connected with the glue injection cavity, and the other end of the oil port A is connected with the oil return port T.
Preferably, the hydraulic system includes a first pressure gauge and a proportional relief valve, and both the first pressure gauge and the proportional relief valve are connected with the oil return port T.
Preferably, the hydraulic system comprises a one-way valve and a glue melting device, one end of the one-way valve is connected with the glue melting device, the other end of the one-way valve is connected with the first valve, and the glue melting device is used for providing glue for the glue injection device.
Preferably, the hydraulic system comprises a second solenoid valve, and the second solenoid valve is connected with the glue injection device.
Preferably, penetrate the mucilage binding and put still include the pine move back the chamber, the pine moves back the chamber with the second solenoid valve is connected.
Preferably, the hydraulic system comprises a third solenoid valve and a shooting and moving device, and the third solenoid valve is connected with the shooting and moving device.
Preferably, the hydraulic system comprises a system overflow valve, and the system overflow valve is connected with the third electromagnetic valve.
Preferably, the hydraulic system comprises a second pressure gauge and a pressure sensor, and the second pressure gauge is connected with the pressure sensor.
Preferably, the glue injection device comprises a nozzle and a spray rod, and the nozzle is arranged at one end of the spray rod.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model provides a hydraulic system of injection molding machine penetrates gluey chamber pressure release protection, its is including penetrating gluey device and first valve, penetrates gluey device and is equipped with and penetrates gluey chamber, penetrates gluey chamber and is used for placing liquid, first valve with penetrate gluey chamber and be connected, first valve is used for penetrating gluey device and cuts off power or derives liquid when breaking down. Penetrate when gluey device has a power failure or the trouble is examined, penetrate the liquid in the gluey intracavity and produce hydraulic pressure force, through opening first valve, can derive penetrating the liquid in gluey intracavity to reach the purpose of pressure release, improve user's safety in utilization, the pressure release effect is better.
2. The first valve is a three-position four-way electromagnetic valve and comprises an oil port A and an oil return port T, one end of the oil port A is connected with the glue injection cavity, and the other end of the oil port A is connected with the oil return port T. When penetrating the mucilage binding and putting out of order, when penetrating the mouth shutoff, the material pipe front portion can accumulate the fuse-element of higher pressure, thereby penetrate the piston of gluing the intracavity and receive pressure to penetrating the removal of gluey chamber direction, and then compress to penetrating gluey chamber, make and penetrate gluey chamber and have a definite value hydraulic pressure force, be connected with penetrating gluey chamber when adopting tribit four-way solenoid valve, break down or power failure, tribit four-way solenoid valve is when normal position, tribit four-way solenoid valve's oil return opening T and hydraulic fluid port A intercommunication, can leak the oil tank with penetrating the unnecessary liquid in gluey chamber, the liquid of having avoided penetrating gluey chamber is compressed, make and penetrate gluey intracavity zero pressure, thereby improve hydraulic system's pressure release effect and safety in utilization.
Drawings
Fig. 1 is a schematic diagram of a hydraulic system.
Illustration of the drawings:
10. a glue injection device; 11. a glue injecting cavity; 12. loosening and withdrawing the cavity; 13. shooting mouth; 14. shooting a rod;
20. a first valve; 21. a third electromagnet; 22. a fourth electromagnet; 30. a glue melting device; 40. a one-way valve; 50. a second solenoid valve; 51. a first electromagnet; 52. a second electromagnet; 60. a third electromagnetic valve; 70. a shooting and moving device; 80. a system relief valve; 81. a second pressure gauge; 82. a pressure sensor; 83. a first pressure gauge; 84. a proportional overflow valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, the utility model provides a hydraulic system of injection molding machine penetrates gluey chamber pressure release protection, it is including penetrating mucilage binding and putting 10 and first valve 20.
Penetrate mucilage binding and put 10 and be equipped with and penetrate gluey chamber 11, penetrate gluey chamber 11 and be used for placing liquid, first valve 20 with penetrate gluey chamber 11 and be connected, first valve 20 is used for penetrating when gluey device 10 has a power failure or trouble and derives liquid. The injection device 10 is used to guide the melt out of a nozzle 13 of the injection device 10.
In this design, penetrate when mucilage binding is put 10 to have a power failure or trouble, penetrate the liquid production hydraulic pressure force in the gluey chamber 11, through opening first valve 20, can derive penetrating the liquid in gluey chamber 11 to reach the purpose of pressure release, improve user's safety in utilization, the pressure release effect is better.
In one embodiment, referring to fig. 1, the first valve 20 is a three-position four-way solenoid valve, and the first valve 20 includes an oil port a and an oil return port T, one end of the oil port a is connected to the glue injection cavity 11, and the other end is connected to the oil return port T. Be tribit four-way solenoid valve through setting up first valve 20, when penetrating the shutoff of 13 mouths of mucilage binding to put 10, the fuse-element of higher pressure can be accumulated to the material pipe front portion, thereby penetrate the piston in the gluey chamber 11 and receive pressure to penetrating gluey 11 direction removals, and then compress penetrating gluey chamber 11, make penetrating gluey chamber 11 to have a definite value's hydraulic pressure force, be connected with penetrating gluey chamber 11 when adopting tribit four-way solenoid valve, break down or power failure, when tribit four-way solenoid valve is in the normal position, tribit four-way solenoid valve's oil return opening T and hydraulic fluid port A intercommunication, can let penetrate gluey 11 unnecessary liquid in chamber and leak the oil tank, the liquid of having avoided penetrating gluey chamber 11 is compressed, make and penetrate gluey intracavity zero pressure, thereby improve hydraulic system's pressure release effect and safety in utilization.
In one embodiment, referring to fig. 1, the hydraulic system includes a first pressure gauge 83 and a proportional relief valve 84, and both the first pressure gauge 83 and the proportional relief valve 84 are connected to the oil return port T. The proportional overflow valve 84 is used for directly generating thrust by an electromagnet, the thrust is applied to a valve core, the input voltage of the electromagnet can be changed between 0 and 24 volts, and the generated thrust is changed along with the change of the input voltage, so that continuously changed hydraulic pressure is obtained, and the hydraulic pressure can be better controlled by adopting the proportional overflow valve 84.
In one embodiment, referring to fig. 1, the hydraulic system includes a check valve 40 and a glue melting device 30, wherein one end of the check valve 40 is connected to the glue melting device 30, and the other end is connected to the first valve 20, and the glue melting device 30 is used for supplying glue to the glue injection device 10.
Further, referring to fig. 1, the hydraulic system includes a second solenoid valve 50, the second solenoid valve 50 is connected to the glue injection device 10, and the second solenoid valve 50 may include an oil port a, an oil port B, an oil inlet P, and an oil return port T. The second solenoid valve 50 may include a first solenoid 51 and a second solenoid 52, and the first valve 20 may include a third solenoid 21 and a fourth solenoid 22. When the glue injection device 10 performs the glue injection action, the first valve 20 and the fourth solenoid valve need to be simultaneously electrified, and the arranged check valve 40 is arranged between the first valve 20 and the glue melting device 30, so that the situation that the glue melting motor rotates reversely when the fourth solenoid 22 is electrified can be avoided.
In one embodiment, referring to fig. 1, the glue injection device 10 further includes a release chamber 12, a cylinder and a piston rod, the release chamber 12 is connected to the oil port a of the second solenoid valve 50, the piston rod is disposed in the cylinder, and the piston rod and the cylinder limit the release chamber 12. Further, referring to fig. 1, the hydraulic system includes a third solenoid valve 60 and a shooting and moving device 70, and the third solenoid valve 60 is connected with the shooting and moving device 70. The third solenoid valve 60 may include an oil port a, an oil port B, an oil inlet P, and an oil return port T.
In one embodiment, referring to fig. 1, the hydraulic system includes a system relief valve 80, and one end of the system relief valve 80 is connected to the second solenoid valve 50, and the other end is connected to the third solenoid valve 60. The hydraulic system comprises a second pressure gauge 81 and a pressure sensor 82, and the second pressure gauge 81 and the pressure sensor 82 are both connected with the third solenoid valve 60.
In one embodiment, referring to fig. 1, the injection device 10 includes a nozzle 13 and a rod 14, the nozzle 13 is disposed at one end of the rod 14, and the rod 14 can be a screw having a spiral groove for pushing the melt toward the nozzle 13.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (9)
1. The utility model provides a hydraulic system of injection molding machine penetrates gluey chamber pressure release protection which characterized in that includes:
the glue injection device is provided with a glue injection cavity, and the glue injection cavity is used for placing liquid;
the first valve is connected with the glue injection cavity and used for leading out the liquid when the glue injection device is powered off or has a fault;
the first valve is a three-position four-way electromagnetic valve and comprises an oil port A and an oil return port T, one end of the oil port A is connected with the glue injection cavity, and the other end of the oil port A is connected with the oil return port T.
2. The hydraulic system of claim 1, wherein: the oil return device comprises a first pressure gauge and a proportional overflow valve, wherein the first pressure gauge and the proportional overflow valve are connected with the oil return port T.
3. The hydraulic system of claim 1, wherein: the glue injection device comprises a one-way valve and a glue melting device, wherein one end of the one-way valve is connected with the glue melting device, the other end of the one-way valve is connected with the first valve, and the glue melting device is used for providing glue materials for the glue injection device.
4. The hydraulic system of claim 1, wherein: the glue injection device comprises a second electromagnetic valve, and the second electromagnetic valve is connected with the glue injection device.
5. The hydraulic system of claim 4, wherein: penetrate the mucilage binding and put still including the pine move back the chamber, the pine move back the chamber with the second solenoid valve is connected.
6. The hydraulic system of claim 1, wherein: the device comprises a third electromagnetic valve and a shooting and moving device, wherein the third electromagnetic valve is connected with the shooting and moving device.
7. The hydraulic system of claim 6, wherein: the system overflow valve is connected with the third electromagnetic valve.
8. The hydraulic system of claim 1, wherein: the pressure gauge comprises a second pressure gauge and a pressure sensor, wherein the second pressure gauge is connected with the pressure sensor.
9. The hydraulic system of claim 1, wherein: penetrate the mucilage binding and put including penetrating the mouth and penetrating the pole, penetrate the mouth and arrange in penetrate the one end of pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122983491.4U CN217597751U (en) | 2021-11-30 | 2021-11-30 | Hydraulic system for pressure relief protection of injection cavity of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122983491.4U CN217597751U (en) | 2021-11-30 | 2021-11-30 | Hydraulic system for pressure relief protection of injection cavity of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217597751U true CN217597751U (en) | 2022-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122983491.4U Active CN217597751U (en) | 2021-11-30 | 2021-11-30 | Hydraulic system for pressure relief protection of injection cavity of injection molding machine |
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| CN (1) | CN217597751U (en) |
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2021
- 2021-11-30 CN CN202122983491.4U patent/CN217597751U/en active Active
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