Main and auxiliary ejection integrated block with stop valve

Abstract

The utility model provides a main and auxiliary ejection integrated block with a stop valve, which relates to the technical field of integrated blocks and comprises an integrated block body, and two groups of drift diameter superposed pressure reducing valves are arranged at the top of the integrated block body close to the left side. In the utility model, the main ejection consists of the proportional servo valve, the two groups of drift diameter electro-hydraulic directional control valves and the drift diameter superposition pressure reducing valves, and the drift diameter superposition pressure reducing valves are arranged below the drift diameter electro-hydraulic directional control valves and are used for controlling the pressure of the drift diameter electro-hydraulic directional control valves, so as to prevent an oil cylinder from drifting under the action of system pressure in the main ejection process; the two groups of auxiliary ejection oil cylinders are respectively embedded in the movable mold plate, the acting force of the auxiliary oil cylinders is changed into thrust from front tension, the piston rod directly acts on the multi-cavity PET mold, the two groups of drift diameter electro-hydraulic directional control valves are independently controlled, and one group can be closed as required when the demolding force is not large, so that the stable demolding of the PET bottle blank and the rapid ejection of the main oil cylinder are ensured; the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated circuits, in particular to a main and auxiliary ejection integrated circuit block with a stop valve. Background Technique

[0002] At present, several ejectors of large PET preform injection molding machines apply force to the ejector plate through a combination of a main oil cylinder and an auxiliary ejection valve. The auxiliary multi-ejection oil cylinder is used for preform demolding, and the main ejection is used for rapid ejection. This auxiliary ejection is generally used for four auxiliary ejection oil cylinders, and the acting point is in the oil cylinder cavity, that is, the acting point of the oil cylinder pulling force, which is widely used in 48-72 cavity molds.

[0003] In the prior art, the auxiliary oil cylinder is prone to oil leakage under high oil pressure, and the four cylinders are significantly unbalanced in force for a large-area ejection device. Especially for fast machines, even for nitrogen energy storage fast machines, a proportional pressure reducing valve needs to be installed to adjust the pressure. The process is complex, and if the adjustment is not in place, it is easy to cause the ejector plate to move forward under unstable oil pressure during the shutdown process. The machine cost is high, and the working efficiency is low. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems existing in the prior art, such as the auxiliary oil cylinder is prone to oil leakage under high oil pressure, and the four cylinders are significantly unbalanced in force for a large-area ejection device. Especially for fast machines, even for nitrogen energy storage fast machines, a proportional pressure reducing valve needs to be installed to adjust the pressure. The process is complex, and if the adjustment is not in place, it is easy to cause the ejector plate to move forward under unstable oil pressure during the shutdown process. The machine cost is high, and the working efficiency is low. A main and auxiliary ejection integrated circuit block with a stop valve is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A main and auxiliary ejection integrated circuit block with a stop valve, comprising: an integrated circuit block body, two groups of through-diameter superimposed pressure reducing valves are arranged at the position close to the left side of the top of the integrated circuit block body, through-diameter electro-hydraulic directional control valves are arranged at the tops of the two groups of through-diameter superimposed pressure reducing valves, a proportional servo valve is arranged at the position close to the through-diameter superimposed pressure reducing valve on the top of the integrated circuit block body, an injection stop valve is arranged at the position close to the right side of the top of the integrated circuit block body, a through-diameter electromagnetic directional control valve is arranged at the top of the injection stop valve, a first screw is arranged on the front surface of the through-diameter electro-hydraulic directional control valve, and a second screw is arranged on the front surface of the first screw.

[0006] Preferably, a first pipe joint is arranged at the position close to the left side of the rear surface of the integrated circuit block body, and an auxiliary ejection is arranged at the position on the right side of the rear surface of the integrated circuit block body.

[0007] Preferably, a plurality of first sealing plugs are arranged on the front surface of the integrated circuit block body, and second sealing plugs are arranged at positions close to the plurality of first sealing plugs.

[0008] Preferably, a second pipe joint is provided on the outer surface of one side of the integrated block body, and a third sealing plug is provided near the second pipe joint.

[0009] Preferably, a third pipe joint is provided near the center of the front surface of the integrated block body, and a fourth pipe joint is provided near the left side of the front surface of the integrated block body.

[0010] Preferably, a two-way cartridge valve is provided near the right side of the front surface of the integrated block body, and a taper plug is provided on the right surface of the through-diameter electromagnetic directional valve.

[0011] Preferably, the injection stop valve and the two-way cartridge valve are provided in a matching manner.

[0012] Preferably, a first pressure measuring hole and a second pressure measuring hole are provided on the left surface of the integrated block body, a third pressure measuring hole and a fourth pressure measuring hole are respectively provided near both sides of the rear surface of the integrated block body, and a fifth pressure measuring hole is provided near the center of the rear surface of the integrated block body.

[0013] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0014] 1. In the present utility model, the main ejection is composed of a proportional servo valve, two groups of through-diameter electro-hydraulic directional valves and a through-diameter stacking pressure reducing valve. The through-diameter stacking pressure reducing valve is installed below the through-diameter electro-hydraulic directional valve to control the pressure of the through-diameter electro-hydraulic directional valve. To prevent the drift of the oil cylinder under the action of the system pressure during the main ejection process, and a total of eight oil cylinders for the two groups of auxiliary ejections are respectively embedded in the moving template. The acting force of the auxiliary oil cylinder is changed from the previous pulling force to a pushing force, and the piston rod directly acts on the multi-cavity PET mold. The two groups of through-diameter electro-hydraulic directional valves are independently controlled. When the demolding force is not large, one group can be closed according to needs to ensure the stable demolding of the PET preform, and the main oil cylinder can eject quickly, improving the working efficiency.

[0015] 2. In the present utility model, the third pressure measuring hole is used for measuring the pressure of the oil coming from the oil pump, the first pressure measuring hole and the fourth pressure measuring hole are used for measuring the pressure of the four outer oil cylinders, the fifth pressure measuring hole and the first pressure measuring hole are used for measuring the pressure of the four middle oil cylinders, and the auxiliary oil cylinders are all designed with detection oil ports to meet the pressure adjustment of the through-diameter stacking pressure reducing valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional view of a main and auxiliary ejection integrated block with a stop valve proposed by the present utility model;

[0017] Figure 2 is a front view of a main and auxiliary ejection integrated block with a stop valve proposed by the present utility model;

[0018] Figure 3The present utility model provides a top view of an integrated block with a main and auxiliary ejection cut-off valve;

[0019] Figure 4 The present utility model provides a rear view of an integrated block with a main and auxiliary ejection cut-off valve;

[0020] Figure 5 The present utility model provides a right view of an integrated block with a main and auxiliary ejection cut-off valve;

[0021] Figure 6 The present utility model provides a left view of an integrated block with a main and auxiliary ejection cut-off valve.

[0022] Legend: 1. Integrated block body; 2. First sealing plug; 3. First pipe joint; 4. First screw; 5. Second screw; 6. Second pipe joint; 7. Second sealing plug; 8. Third sealing plug; 9. Third pipe joint; 10. Tapered tooth plug; 11. Fourth pipe joint; 12. Full-bore electro-hydraulic directional valve; 13. Full-bore stacking pressure reducing valve; 14. Proportional servo valve; 15. Full-bore electromagnetic directional valve; 16. Injection cut-off valve; 17. Two-way cartridge valve; 18. Auxiliary ejection; 20. First pressure measuring hole; 21. Second pressure measuring hole; 22. Third pressure measuring hole; 23. Fourth pressure measuring hole; 24. Fifth pressure measuring hole; Detailed implementation manners

[0023] In order to more clearly understand the above objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0024] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model may be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0025] Embodiment 1, as Figures 1-6As shown in the figure, the utility model provides an integrated main and auxiliary ejector block with a stop valve, which includes: an integrated block body 1, on the top of the integrated block body 1, two groups of path-overlapping pressure reducing valves 13 are fixedly connected at positions close to the left side, on the top of the two groups of path-overlapping pressure reducing valves 13, path electro-hydraulic reversing valves 12 are arranged, on the top of the integrated block body 1, at positions close to the path-overlapping pressure reducing valves 13, a proportional servo valve 14 is arranged, on the top of the integrated block body 1, at positions close to the right side, an injection stop valve 16 is arranged, on the top of the injection stop valve 16, a path electromagnetic reversing valve 15 is arranged, on the front surface of the path electro-hydraulic reversing valve 12, a first screw 4 is arranged, on the front surface of the first screw 4, a second screw 5 is arranged, on the rear surface of the integrated block body 1, at positions close to the left side, a first pipe joint 3 is arranged, on the rear surface of the integrated block body 1, at positions on the right side, an auxiliary ejector 18 is arranged, on the front surface of the integrated block body 1, a plurality of first sealing plugs 2 are arranged, and at positions close to the plurality of first sealing plugs 2, second sealing plugs 7 are arranged, on one outer surface of the integrated block body 1, a second pipe joint 6 is arranged, and at positions close to the second pipe joint 6, a third sealing plug 8 is arranged, on the front surface of the integrated block body 1, at positions close to the center, a third pipe joint 9 is arranged, on the front surface of the integrated block body 1, at positions close to the left side, a fourth pipe joint 11 is arranged, on the front surface of the integrated block body 1, at positions close to the right side, a two-way cartridge valve 17 is arranged, on the right surface of the path electromagnetic reversing valve 15, a taper thread plug 10 is arranged, and the injection stop valve 16 and the two-way cartridge valve 17 are provided in a matching manner.

[0026] The effects achieved by the entire Embodiment 1 are as follows: The first sealing plug 2, the second sealing plug 7, and the third sealing plug 8 are all made of soft materials, and the first screw 4 and the second screw 5 are both hexagon socket head cap screws. Multiple first sections, the first pipe joint 3, the third pipe joint 9, and the fourth pipe joint 11 are all ferrule type right-angle pipe joints, and the second pipe joint 6 is a straight-through pipe joint, all of which are used to connect pipelines. The first sealing plug 2, the second sealing plug 7, and the third sealing plug 8 are used to seal the first pipe joint 3, the third pipe joint 9, and the fourth pipe joint 11. The integrated block body 1 is provided with XY pilot oil ports, and the main oil port incoming oil is provided with an injection stop valve 16 to limit the oil port. It consists of a group of main jack proportional servo valves 14, two groups of full-bore electro-hydraulic directional valves 12, and a full-bore stacking pressure reducing valve 13. The full-bore stacking pressure reducing valve 13 is installed below the full-bore electro-hydraulic directional valve 12 to control the pressure of the full-bore electro-hydraulic directional valve 12. To prevent the drift of the oil cylinder under the action of the system pressure during the main jack process, the pilot hydraulic oil is used to control the proportional servo valve 14 to control the main jack oil cylinder to push the ejector plate to quickly eject the product. Since the incoming oil is controlled by the injection stop valve 16, the main oil controls the incoming oil of the proportional servo valve 14 under the action of the injection stop valve 16. After ejecting the product, the ejector plate returns to its position, and the injection stop valve 16 cuts off the main oil and the incoming oil passage of the proportional servo valve 14, and no longer supplies oil to the proportional servo valve 14 to ensure that the ejector plate will not drift. There are a total of eight oil cylinders for the two groups of auxiliary ejection 18, with four oil cylinders in the middle as one group and four oil cylinders on the periphery as one group, which are respectively embedded in the moving template. The acting force of the auxiliary oil cylinder is changed from the previous pulling force to a pushing force, and the piston rod directly acts on the multi-cavity PET mold. The two groups of full-bore electro-hydraulic directional valves 12 are independently controlled. When the demolding force is not large, one group can be closed according to needs to ensure the stable demolding of the PET preform and the rapid ejection of the main oil cylinder.

[0027] Embodiment 2, as Figures 1-6 shown, the left surface of the integrated block body 1 is provided with a first pressure measuring hole 20 and a second pressure measuring hole 21, and the positions near both sides of the rear surface of the integrated block body 1 are respectively provided with a third pressure measuring hole 22 and a fourth pressure measuring hole 23, and the position near the center of the rear surface of the integrated block body 1 is provided with a fifth pressure measuring hole 24.

[0028] The effects achieved by the entire Embodiment 2 are as follows: The third pressure measuring hole 22 is used for measuring the pressure of the incoming oil from the oil pump, the first pressure measuring hole 20 and the fourth pressure measuring hole 23 are used for measuring the pressure of the four outer oil cylinders, the fifth pressure measuring hole 24 and the first pressure measuring hole 20 are used for measuring the pressure of the four middle oil cylinders, and the auxiliary oil cylinders are all designed with detection oil ports to meet the pressure adjustment of the full-bore stacking pressure reducing valve 13.

[0029] Working principle: The integrated block body 1 is provided with XY pilot oil ports, and the oil from the main oil port is provided with an injection cut-off valve 16 to limit the oil port. It consists of a group of main top proportional servo valves 14, two groups of full-bore electro-hydraulic reversing valves 12, and full-bore superimposed pressure reducing valves 13. The full-bore superimposed pressure reducing valve 13 is installed below the full-bore electro-hydraulic reversing valve 12 to control the pressure of the full-bore electro-hydraulic reversing valve 12. To prevent the drift of the oil cylinder under the action of the system pressure during the main top process, the proportional servo valve 14 is controlled by the pilot hydraulic oil to push the ejector plate to quickly eject the product. Since the incoming oil is controlled by the injection cut-off valve 16, the main oil controls the incoming oil of the proportional servo valve 14 under the action of the injection cut-off valve 16. After ejecting the product, the ejector plate returns to its position, and the injection cut-off valve 16 cuts off the main oil and the oil inlet channel of the proportional servo valve 14, and no longer supplies oil to the proportional servo valve 14 to ensure that the ejector plate will not drift. There are a total of eight oil cylinders in two groups of auxiliary ejections 18, with four oil cylinders in the middle as one group and four oil cylinders on the periphery as one group, which are respectively embedded in the moving template. The acting force of the auxiliary oil cylinder is changed from the previous pulling force to a pushing force, and the piston rod directly acts on the multi-cavity PET mold. The two groups of full-bore electro-hydraulic reversing valves 12 are independently controlled. When the demolding force is not large, one group can be closed according to needs to ensure the stable demolding of the PET preform. The main oil cylinder quickly ejects, and the third pressure measuring hole 22 is used for pressure measurement of the oil from the oil pump. The first pressure measuring hole 20 and the fourth pressure measuring hole 23 are used for pressure measurement of the four outer oil cylinders. The fifth pressure measuring hole 24 and the first pressure measuring hole 20 are used for pressure measurement of the four middle oil cylinders. The auxiliary oil cylinders are all designed with detection oil ports to meet the pressure adjustment of the full-bore superimposed pressure reducing valve 13.

[0030] The above is only a preferred embodiment of the present invention, and it does not limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical content of the technical solution of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A manifold with main and auxiliary ejection of stop valves, characterized in that: include: An integrated block body (1), wherein the top of the integrated block body (1) is fixedly connected to two groups of through-diameter stacked pressure reducing valves (13) arranged near the left side, the tops of the two groups of through-diameter stacked pressure reducing valves (13) are both provided with through-diameter electro-hydraulic reversing valves (12), a proportional servo valve (14) is arranged near the through-diameter stacked pressure reducing valves (13) at the top of the integrated block body (1), an injection stop valve (16) is arranged near the right side of the top of the integrated block body (1), a through-diameter electromagnetic reversing valve (15) is arranged on the top of the injection stop valve (16), a first screw (4) is arranged on the front surface of the through-diameter electro-hydraulic reversing valve (12), and a second screw (5) is arranged on the front surface of the first screw (4).

2. The integrated block with main and auxiliary ejectors of stop valves according to claim 1, characterized in that: A first pipe joint (3) is provided on the rear surface of the integrated block body (1) near the left side, and an auxiliary ejector (18) is provided on the rear surface of the integrated block body (1) on the right side.

3. The integrated block with main and auxiliary ejectors of stop valves according to claim 2 is characterized in that: A plurality of first sealing plugs (2) are arranged on the front surface of the integrated block body (1), and second sealing plugs (7) are arranged at positions close to the plurality of first sealing plugs (2).

4. The integrated block with main and auxiliary ejectors of stop valves according to claim 3 is characterized in that: A second pipe joint (6) is provided on one side outer surface of the integrated block body (1), and a third sealing plug (8) is provided at a position close to the second pipe joint (6).

5. The integrated block with main and auxiliary ejectors of stop valves according to claim 4, characterized in that: A third pipe joint (9) is provided near the center of the front surface of the integrated block body (1), and a fourth pipe joint (11) is provided near the left side of the front surface of the integrated block body (1).

6. The integrated block with main and auxiliary ejectors of stop valves according to claim 5, characterized in that: A two-way cartridge valve (17) is provided on the front surface of the integrated block body (1) near the right side, and a tapered plug (10) is provided on the right surface of the through-path electromagnetic reversing valve (15).

7. The integrated block with main and auxiliary ejectors of stop valves according to claim 6, characterized in that: The injection stop valve (16) and the two-way cartridge valve (17) are arranged in a matching manner.

8. The integrated block with main and auxiliary ejectors of stop valves according to claim 7, characterized in that: A first pressure measuring hole (20) and a second pressure measuring hole (21) are provided on the left surface of the integrated block body (1), a third pressure measuring hole (22) and a fourth pressure measuring hole (23) are provided on the rear surface of the integrated block body (1) near both sides, and a fifth pressure measuring hole (24) is provided on the rear surface of the integrated block body (1) near the center.

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