Pressurizing ejector rod oil cylinder equipment of die casting machine
By designing a pressurized pinch oil cylinder equipment of a die-casting machine including a cylinder body, a pressurized pinch rod, a pressurized component, an oil conveying component and a sealing component, the hydraulic pump oil injection and a guide rod sealing ring are used to solve the problem of the return spring damage caused by the damage to the return spring The problem of floating piston being unable to reset improves the stability and service life of the compressive position.
Patent Information
- Application Number
- CN202420564211.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-22
AI Technical Summary
When used for a long time, the reset spring is easily damaged, resulting in the floating piston being unable to reset, the pressure position is unstable, and the pressure construction time is shortened.
A pressurized pinch rod oil cylinder equipment including the cylinder body, the booster hoist rod, the booster assembly, the oil transport assembly and the sealing assembly is designed. The hydraulic pump is used to inject oil, and the booster piston and the sealing piston are used to achieve the booster and release of the oil cylinder. 压,延长了使用寿命,并通过导杆和密封圈提高密封效果。
It effectively extends the service life of the supercharged piston and sealed piston, solves the problem that floating piston cannot be reset, improves the stability of the pressurized position and shortens the supercharge time.
Smart Images
Figure CN222185268U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ejector oil cylinders, in particular to a pressurized ejector oil cylinder device for a die-casting machine. Background Art
[0002] The floating piston pressurization method in the prior art has the defects of unstable pressure building position, shortened pressure building time, and easy failure of the ejector rod.
[0003] The existing announcement number CN203371020U discloses a booster push rod cylinder device for a die-casting machine, including a booster push rod piston, which is installed in a booster push rod piston cylinder sleeve. The booster push rod piston is driven by hydraulic force to push open a floating piston that is sealed with the booster piston under the action of a floating piston return spring, thereby realizing the opening and closing of the booster piston and the floating piston and controlling the on-and-off effect of the oil. During the booster shot stage of the cold chamber die-casting machine, the booster push rod piston rod and the floating piston change from the original rigid impact to flexible impact, thereby effectively ensuring the reliability of the booster push rod piston and, more importantly, effectively ensuring the accuracy of the starting position during boost shot, while effectively shortening the boost pressure building time.
[0004] However, when the above-mentioned pressurized ejector cylinder device for a die-casting machine is used, the cylinder is pressurized and depressurized through a return spring and a floating piston. When used for a long time, the return spring is easily damaged, resulting in the floating piston being unable to reset. Utility Model Content
[0005] The purpose of the utility model is to provide a die-casting machine booster push rod oil cylinder device, which solves the problem that when the booster push rod oil cylinder device for the die-casting machine is used, the oil cylinder is pressurized and released by a return spring and a floating piston. When used for a long time, the return spring is easily damaged, resulting in the floating piston being unable to reset.
[0006] To achieve the above-mentioned purpose, the utility model provides a die-casting machine booster push rod cylinder device, including a cylinder body and a booster push rod, the booster push rod is slidably connected to the cylinder body and is located inside the cylinder body, and also includes a booster assembly, an oil delivery assembly and a sealing assembly; the booster assembly includes a booster piston, a booster cylinder, a connecting rod and a sealing piston, the booster piston is slidably connected to the cylinder body and is located inside the cylinder body, the booster cylinder is slidably connected to the cylinder body and is located between the booster piston and the booster push rod, the connecting rod is fixedly connected to the booster piston and passes through the booster cylinder, the sealing piston is fixedly connected to the connecting rod and is located inside the booster cylinder, the oil delivery assembly is connected to the cylinder body, and the sealing assembly is connected to the cylinder body.
[0007] Wherein, the boosting assembly further includes a guide rod, and the guide rod is in multiple number. The multiple guide rods are respectively fixedly connected to the boosting piston and respectively pass through the boosting cylinder.
[0008] Among them, the oil delivery assembly includes a boost oil inlet pipe, a boost oil outlet pipe and a depressurization oil inlet pipe, the boost oil inlet pipe is fixedly connected to the cylinder body and located on the side of the cylinder body, the boost oil outlet pipe is fixedly connected to the cylinder body and located on the side of the cylinder body, and the depressurization oil inlet pipe is fixedly connected to the cylinder body and located at the tail of the cylinder body.
[0009] Among them, the sealing assembly includes an oil pipe sealing ring, a guide sealing ring, a boost sealing ring and a push rod sealing ring. The number of the oil pipe sealing rings is two, and the two oil pipe sealing rings are respectively fixedly connected to the boost oil inlet pipe and the boost oil outlet pipe, and are respectively located inside the cylinder body. The outer side of each guide rod is slidably connected with a guide sealing ring, the boost sealing ring is fixedly connected to the sealing piston, and is located inside the boost cylinder, and the push rod sealing ring is fixedly connected to the boost push rod, and is located on the side of the boost push rod close to the boost cylinder.
[0010] Among them, the die-casting machine booster push rod cylinder equipment also includes an oil drain pipe and a valve. The oil drain pipe is fixedly connected to the cylinder body and is located below the pressure relief oil inlet pipe. The valve is fixedly connected to the oil drain pipe and is not connected to the top of the oil drain pipe.
[0011] The utility model discloses a die-casting machine booster push rod oil cylinder device, the cylinder body pumps oil into the cylinder body through an external hydraulic pump, the booster push rod is pushed out after the boosting of the boosting component, so as to achieve the purpose of driving the die-casting machine, and the oil is injected between the booster piston and the sealing piston, and the oil is introduced into the booster cylinder through the piston between the sealing piston and the booster cylinder. When the oil is continuously injected, the sealing piston seals the booster cylinder, and the booster cylinder and the booster push rod are simultaneously pushed out to the outside of the cylinder body through the movement of the booster piston, so as to achieve the purpose of boosting the cylinder body, prolong the service life of the booster piston and the sealing piston, and solve the problem that when the booster push rod oil cylinder device for the die-casting machine is used, the oil cylinder is pressurized and depressurized by the return spring and the floating piston, and the return spring is easily damaged when used for a long time, resulting in the floating piston being unable to reset. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.
[0013] Figure 1 It is a schematic diagram of the overall structure of a pressurized ejector cylinder device for a die-casting machine according to the first embodiment of the utility model.
[0014] Figure 2 It is a cross-sectional view of a pressurized ejector cylinder device for a die-casting machine according to the first embodiment of the utility model.
[0015] Figure 3 It is a structural schematic diagram of the booster assembly of the first embodiment of the utility model.
[0016] Figure 4 It is a schematic diagram of the overall structure of a pressurized ejector cylinder device for a die-casting machine according to the second embodiment of the utility model.
[0017] In the figure: 101-cylinder body, 102-boosting push rod, 103-boosting piston, 104-boosting cylinder, 105-connecting rod, 106-sealing piston, 107-guide rod, 108-boosting oil inlet pipe, 109-boosting oil outlet pipe, 110-depressurization oil inlet pipe, 111-oil pipe sealing ring, 112-guide sealing ring, 113-boosting sealing ring, 114-pushing rod sealing ring, 201-oil drain pipe, 202-valve. DETAILED DESCRIPTION
[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.
[0019] The first embodiment of the present application is:
[0020] See also Figures 1 to 3 ,in, Figure 1 This is a schematic diagram of the overall structure of a die-casting machine booster push rod cylinder device according to the first embodiment of the utility model. Figure 2 This is a cross-sectional view of a die-casting machine booster push rod cylinder device according to the first embodiment of the utility model. Figure 310. The utility model is a structural schematic diagram of the boosting component of the first embodiment of the utility model. The utility model provides a boosting push rod of a die-casting machine, including a cylinder body 101, a boosting push rod 102, a boosting component, an oil delivery component and a sealing component. The boosting component includes a boosting piston 103, a boosting cylinder 104, a connecting rod 105, a sealing piston 106 and a guide rod 107. The oil delivery component includes a boosting oil inlet pipe 108, a boosting oil outlet pipe 109 and a depressurization oil inlet pipe 110. The sealing component includes an oil pipe sealing ring 111, a guide sealing ring 112, a boosting sealing ring 113 and a push rod sealing ring 114. The above scheme solves the problem that when the boosting push rod cylinder device for the die-casting machine is in use, the cylinder is pressurized and depressurized by a reset spring and a floating piston. When used for a long time, the reset spring is easily damaged, resulting in the floating piston being unable to reset. It can be understood that the above scheme can be used in the scenario where the boosting push rod cylinder is used, and can also be used to solve the problem of oil circuit blockage when the boosting push rod cylinder is in use.
[0021] According to the present specific embodiment, the booster push rod 102 is slidably connected to the cylinder body 101 and is located inside the cylinder body 101. The booster piston 103 is slidably connected to the cylinder body 101 and is located inside the cylinder body 101. The booster cylinder 104 is slidably connected to the cylinder body 101 and is located between the booster piston 103 and the booster push rod 102. The connecting rod 105 is fixedly connected to the booster piston 103 and passes through the booster cylinder 104. The sealing piston 106 is fixedly connected to the connecting rod 105 and is located inside the booster cylinder 104. The oil delivery assembly is connected to the cylinder body 101. The sealing assembly is connected to the cylinder body 101. The oil is pumped into the oil cylinder body 101 through an external hydraulic pump, and the booster push rod 102 is pushed out after the booster assembly is pressurized, thereby achieving the purpose of driving the die-casting machine. The oil is injected between the booster piston 103 and the sealing piston 106, and the oil is introduced into the booster cylinder 104 through the piston between the sealing piston 106 and the booster cylinder 104. When the oil is continuously injected, the sealing piston 106 seals the booster cylinder 104, and the booster cylinder 104 and the booster push rod 102 are simultaneously pushed outward of the oil cylinder body 101 through the movement of the booster piston 103, thereby achieving the purpose of pressurizing the inside of the oil cylinder body 101 and extending the service life of the booster piston 103 and the sealing piston 106.
[0022] There are multiple guide rods 107 , which are fixedly connected to the booster piston 103 and pass through the booster cylinder 104 . The guide rods 107 provide guidance and limiting functions for the sealing piston 106 .
[0023] Secondly, the boost oil inlet pipe 108 is fixedly connected to the cylinder body 101 and is located on the side of the cylinder body 101. The boost oil outlet pipe 109 is fixedly connected to the cylinder body 101 and is located on the side of the cylinder body 101. The depressurization oil inlet pipe 110 is fixedly connected to the cylinder body 101 and is located at the tail of the cylinder body 101. When the equipment is in use, oil is injected into the interior of the cylinder body 101 through the boost oil inlet pipe 108. After use, the boost piston 103 is continuously pushed forward by injecting oil through the depressurization oil inlet pipe 110, and at the same time, the oil in the cylinder body 101 is released through the boost oil outlet pipe 109, thereby achieving the purpose of equipment transmission.
[0024] Again, there are two oil pipe sealing rings 111, which are respectively fixedly connected to the boost oil inlet pipe 108 and the boost oil outlet pipe 109 and are respectively located inside the oil cylinder body 101. The outer side of each guide rod 107 is slidably connected to a guide sealing ring 112. The boost sealing ring 113 is fixedly connected to the sealing piston 106 and is located inside the boost oil cylinder 104. The push rod sealing ring 114 is fixedly connected to the boost push rod 108 and is located inside the boost oil cylinder 104. 2 is fixedly connected and is located on the side of the boosting push rod 102 close to the boosting oil cylinder 104. The oil pipe sealing ring 111 provides sealing for the boosting oil inlet pipe 108 and the boosting oil outlet pipe 109. The guide sealing ring 112 provides sealing for the guide rod 107. The boosting sealing ring 113 provides sealing for the sealing piston 106. The push rod sealing ring 114 provides sealing for the boosting push rod 102, so that the sealing effect of the equipment is better and the force is more sufficient when it is used.
[0025] A die-casting machine booster push rod of the present embodiment is used, the cylinder body 101 pumps oil into the cylinder body 101 through an external hydraulic pump, and the booster push rod 102 is pushed out after being pressurized by the booster assembly, thereby achieving the purpose of driving the die-casting machine, and oil is injected between the booster piston 103 and the sealing piston 106, and the oil is introduced into the booster cylinder 104 through the piston between the sealing piston 106 and the booster cylinder 104. When the oil is continuously injected, the sealing piston 106 pushes the booster cylinder 104. 04 seal, through the movement of the booster piston 103, the booster cylinder 104 and the booster push rod 102 are simultaneously pushed outward from the cylinder body 101, so as to achieve the purpose of pressurizing the cylinder body 101, and extend the service life of the booster piston 103 and the sealing piston 106, and solve the problem that when the booster push rod cylinder device for the die-casting machine is used, the cylinder is pressurized and released by the return spring and the floating piston. When used for a long time, the return spring is easily damaged, resulting in the floating piston being unable to reset.
[0026] The second embodiment of the present application is:
[0027] Based on the first embodiment, please refer to Figure 4 ,in, Figure 4 It is a schematic diagram of the overall structure of a pressurized ejector cylinder device for a die-casting machine according to the second embodiment of the utility model.
[0028] The die casting machine booster ejector of this embodiment further includes an oil drain pipe 201 and a valve 202 .
[0029] According to this specific embodiment, the oil drain pipe 201 is fixedly connected to the cylinder body 101 and is located below the pressure relief oil inlet pipe 110. The valve 202 is fixedly connected to the oil drain pipe 201 and is not connected to the top of the oil drain pipe 201. When a problem occurs in the equipment and the oil circuit is blocked, the valve 202 is opened to facilitate the discharge of the oil in the cylinder body 101 through the oil drain pipe 201, thereby reducing the accident rate of the equipment.
[0030] When a die-casting machine booster push rod of the present embodiment is used and the oil circuit is clogged due to a problem with the equipment, the valve 202 is opened to facilitate the discharge of the oil in the cylinder body 101 through the oil drain pipe 201, thereby reducing the accident rate of the equipment.
[0031] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.
Claims
1. A die-casting machine booster push rod oil cylinder device, comprising an oil cylinder body and a booster push rod, wherein the booster push rod is slidably connected to the oil cylinder body and is located inside the oil cylinder body, characterized in that: It also includes a booster assembly, an oil delivery assembly, and a sealing assembly; The boosting assembly includes a boosting piston, a boosting cylinder, a connecting rod and a sealing piston. The boosting piston is slidably connected to the cylinder body and is located inside the cylinder body. The boosting cylinder is slidably connected to the cylinder body and is located between the boosting piston and the boosting push rod. The connecting rod is fixedly connected to the boosting piston and passes through the boosting cylinder. The sealing piston is fixedly connected to the connecting rod and is located inside the boosting cylinder. The oil delivery assembly is connected to the cylinder body, and the sealing assembly is connected to the cylinder body.
2. A die-casting machine booster push rod cylinder device as claimed in claim 1, characterized in that: The boosting assembly further includes a guide rod, and the guide rod is in multiple number. The multiple guide rods are respectively fixedly connected to the boosting piston and respectively pass through the boosting cylinder.
3. A die-casting machine booster cylinder device as claimed in claim 2, characterized in that: The oil delivery assembly includes a boost oil inlet pipe, a boost oil outlet pipe and a depressurization oil inlet pipe. The boost oil inlet pipe is fixedly connected to the cylinder body and located on the side of the cylinder body. The boost oil outlet pipe is fixedly connected to the cylinder body and located on the side of the cylinder body. The depressurization oil inlet pipe is fixedly connected to the cylinder body and located at the tail of the cylinder body.
4. A die-casting machine booster push rod cylinder device as claimed in claim 3, characterized in that: The sealing assembly includes an oil pipe sealing ring, a guide sealing ring, a boost sealing ring and a push rod sealing ring. There are two oil pipe sealing rings, and the two oil pipe sealing rings are respectively fixedly connected to the boost oil inlet pipe and the boost oil outlet pipe, and are respectively located inside the cylinder body. The outer side of each guide rod is slidably connected with a guide sealing ring. The boost sealing ring is fixedly connected to the sealing piston and is located inside the boost cylinder. The push rod sealing ring is fixedly connected to the boost push rod and is located on the side of the boost push rod close to the boost cylinder.
5. The die-casting machine booster push rod cylinder device according to claim 3, characterized in that: The die-casting machine booster push rod cylinder equipment also includes an oil drain pipe and a valve. The oil drain pipe is fixedly connected to the cylinder body and is located below the pressure relief oil inlet pipe. The valve is fixedly connected to the oil drain pipe and is not connected to the top of the oil drain pipe.