Energy accumulator for injection molding machine
By installing a filter on the oil circuit block of the injection molding machine's accumulator, the problem of impurities in the oil circuit affecting the hydraulic drive was solved, thus achieving stable operation of the injection molding machine.
Patent Information
- Application Number
- CN202520189123.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-07
AI Technical Summary
The existing injection molding machine accumulators lack filtration devices, which causes impurities such as iron slag and rust in the oil circuit to affect the hydraulic drive system and the normal operation of the injection molding machine.
A filter is installed on the oil circuit block of the accumulator. The filter is located between the inlet and the main body of the accumulator to filter the hydraulic oil and prevent impurities such as iron slag and rust from entering the system.
By setting up a filter, impurities in the oil circuit are effectively filtered out, ensuring the normal operation of the hydraulic drive of the injection molding machine and avoiding system failures caused by impurities.
Smart Images

Figure CN223662208U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding machine technology, and in particular to an energy storage device for injection molding machines. Background Technology
[0002] During operation, injection molding machines typically incorporate accumulators in their hydraulic systems to optimize energy utilization. However, existing accumulators often lack filtration devices, and during actual operation, impurities such as iron filings and rust may accumulate in the hydraulic circuit, affecting the system and consequently the hydraulic drive of the injection molding machine. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides an energy storage device for injection molding machines, which avoids the influence of iron slag, water rust, etc. on the system oil circuit and ensures the normal hydraulic drive of the injection molding machine.
[0004] The technical solution adopted by this utility model to solve its technical problem is:
[0005] An energy storage device for an injection molding machine includes an oil passage block with an oil passage cavity inside. One end of the oil passage cavity is a liquid inlet, and the other end is a liquid outlet. The oil passage block is provided with a plurality of energy storage bodies that communicate with the oil passage cavity. A filter that communicates with the oil passage cavity is provided on one side of the oil passage block, and the filter is disposed between the liquid inlet and the energy storage body.
[0006] Preferably, the oil passage block is provided with a one-way valve that communicates with the oil passage cavity, and the one-way valve is located between the filter and the liquid inlet.
[0007] Preferably, the oil passage block is provided with a pressure gauge that communicates with the oil passage cavity.
[0008] Preferably, the oil circuit block includes an oil circuit block body and a valve block, the inlet, the filter and the energy storage body are all disposed on the oil circuit block body, and the outlet is disposed on the valve block.
[0009] Preferably, an overflow valve and a solenoid valve are provided on one side of the valve block, and both the overflow valve and the solenoid valve are connected to the oil passage cavity.
[0010] Preferably, the valve block is provided with a safety valve that communicates with the oil passage cavity.
[0011] Preferably, the valve block is provided with a reversing valve that communicates with the oil passage cavity.
[0012] Preferably, there are four energy storage units, and the four energy storage units are arranged in two rows and two columns.
[0013] The present invention discloses an energy accumulator for an injection molding machine. Compared with the prior art, its advantages are as follows: by setting a filter connected to the oil circuit cavity on one side of the oil circuit block, and the filter being set between the inlet and the main body of the energy accumulator, the hydraulic oil is filtered, avoiding the influence of iron slag, water rust, etc. on the system oil circuit, and ensuring the normal hydraulic drive of the injection molding machine. Attached Figure Description
[0014] Figure 1 This is a front view of the energy storage device for injection molding machines according to this utility model.
[0015] Figure 2 This is a side view of the energy storage device for injection molding machines according to this utility model.
[0016] Figure 3 This is an isometric view of the energy storage device for injection molding machines according to this utility model.
[0017] Wherein: 1-oil manifold block, 11-inlet, 12-outlet, 13-oil manifold block body, 14-valve block, 2-energy storage body, 3-filter, 4-check valve, 5-pressure gauge, 6-relief valve, 7-solenoid valve, 8-safety valve, 9-directional valve. Detailed Implementation
[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0019] It should be noted that in this application, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0020] like Figure 1-3 As shown, a preferred embodiment of the present invention provides an energy storage device for an injection molding machine, comprising an oil passage block 1. The oil passage block 1 has an internal oil passage cavity, one end of which is an inlet 11 and the other end is an outlet 12. The oil passage block 1 has multiple energy storage bodies 2 connected to the oil passage cavity. Preferably, there are four energy storage bodies 2 arranged in two rows and two columns. A filter 3 connected to the oil passage cavity is provided on one side of the oil passage block 1, and the filter 3 is positioned between the inlet 11 and the energy storage body 2. The filter 3 is preferably a high-pressure online filter.
[0021] Based on the above-mentioned technical features, the accumulator for injection molding machines achieves the filtration of hydraulic oil by setting a filter 3 connected to the oil circuit cavity on one side of the oil circuit block 1, and the filter 3 is set between the liquid inlet 11 and the main body 2 of the accumulator. This avoids the impact of iron slag, water rust, etc. on the system oil circuit and ensures the normal hydraulic drive of the injection molding machine.
[0022] In this embodiment, the oil circuit block 1 is equipped with a one-way valve 4 connected to the oil circuit cavity, and the one-way valve 4 is located between the filter 3 and the inlet 11. The one-way valve 4 is preferably a plate-type one-way valve. Driven by an electric motor, the injection molding machine's oil pump supplies pressurized oil to the system through the main oil circuit, and simultaneously fills the energy storage unit 2 with liquid through the one-way valve 4 to store energy. When oil needs to be supplied to the system, the high-pressure oil in the energy storage unit 2 returns through the outlet 12. Furthermore, to monitor the hydraulic oil pressure in the oil circuit cavity, the oil circuit block 1 is equipped with a pressure gauge 5 connected to the oil circuit cavity.
[0023] In this embodiment, the oil circuit block 1 includes an oil circuit block body 13 and a valve block 14. The inlet 11, the filter 3, the one-way valve 4, the pressure gauge 5, and the energy storage unit body 2 are all disposed on the oil circuit block body 13, and the outlet 12 is disposed on the valve block 14. The valve block 14 is equipped with various valves to ensure the safety of the energy storage unit. Specifically, one side of the valve block 14 is provided with an overflow valve 6 and a solenoid valve 7, both of which are connected to the oil circuit cavity. The valve block 14 is also provided with a safety valve 8 connected to the oil circuit cavity.
[0024] In addition, the valve block 14 is equipped with a reversing valve 9 that communicates with the oil passage chamber. When it is necessary to return oil to the main oil passage of the injection molding machine, the reversing valve 9 opens, and the accumulator body 2 releases pressure through the reversing valve 9. At the same time, when the pressure gauge 5 detects a high pressure value, it also releases pressure through the reversing valve 9 to ensure the safety of the system.
[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.
Claims
1. An energy storage device for an injection molding machine, characterized in that: The device includes an oil passage block, which has an oil passage cavity inside. One end of the oil passage cavity is a liquid inlet, and the other end is a liquid outlet. The oil passage block is provided with multiple energy storage bodies that communicate with the oil passage cavity. A filter that communicates with the oil passage cavity is provided on one side of the oil passage block, and the filter is located between the liquid inlet and the energy storage body.
2. The energy storage device for injection molding machines as described in claim 1, characterized in that: The oil passage block is equipped with a one-way valve that communicates with the oil passage cavity, and the one-way valve is located between the filter and the liquid inlet.
3. The energy storage device for injection molding machines as described in claim 1, characterized in that: The oil passage block is equipped with a pressure gauge that is connected to the oil passage cavity.
4. The energy storage device for injection molding machines as described in claim 1, characterized in that: The oil circuit block includes an oil circuit block body and a valve block. The inlet, the filter and the energy storage body are all located on the oil circuit block body, and the outlet is located on the valve block.
5. The energy storage device for injection molding machines as described in claim 4, characterized in that: An overflow valve and a solenoid valve are provided on one side of the valve block, and both the overflow valve and the solenoid valve are connected to the oil passage cavity.
6. The energy storage device for injection molding machines as described in claim 4, characterized in that: The valve block is equipped with a safety valve that communicates with the oil passage cavity.
7. The energy storage device for injection molding machines as described in claim 4, characterized in that: The valve block is equipped with a reversing valve that communicates with the oil passage cavity.
8. The energy storage device for injection molding machines as described in any one of claims 1-7, characterized in that: The energy storage device consists of four main bodies, which are arranged in two rows and two columns.