Oil suction structure special for servo pump control of injection molding machine

Abstract

The utility model belongs to the technical field of injection molding machine parts, and particularly relates to a special oil suction structure for injection molding machine servo pump control, which comprises an oil suction flange, a connecting part and a connecting pipe, the oil suction flange comprises a flange plate and an external thread pipe, and the side edge of the flange plate is connected with the external thread pipe; the connecting part is connected to the external thread pipe and comprises a connecting sleeve and an internal thread, and the internal thread connected with the external thread pipe is arranged in the connecting sleeve; the connecting pipe is connected in the connecting sleeve, the connecting pipe comprises a pipeline and a connecting check ring, the left end of the pipeline is inserted into the connecting sleeve, the connecting check ring is arranged outside the pipeline, the tail end of the connecting pipe is in butt joint with the tail end of the external threaded pipe, then the connecting part is connected between the connecting pipe and the external threaded pipe, and during connection, the connecting gap is sealed; during connection, the connecting pipe can rotate on the connecting part, the arrangement direction is changed, mutual interference between pipelines is avoided, and the pipelines are convenient to detach, replace and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machine components, in particular to a special oil suction structure for servo pump control of an injection molding machine. Background Art

[0002] At present, ordinary injection molding machines still rely on liquid kinetic energy to drive the cylinder as the actuator to complete various actions of the injection molding machine, such as mold closing, mold opening, injection, ejection, etc., to meet the plastic product molding process. At present, injection molding machines have changed to servo motors to drive internal gear pumps for energy efficiency to achieve large-flow and high-pressure liquid output. Due to the unique characteristics of servo pumps, the oil suction port requires a large flow rate to ensure the output of hydraulic energy.

[0003] At present, most manufacturers use a small mounting flange of the oil suction port of the internal gear pump, weld a large straight steel pipe and a sawtooth end connected to the hose, and then connect it to the oil tank to transfer the hydraulic oil in the oil tank to the oil pump. This connection method is prone to oil leakage and position interference, resulting in installation difficulties. For this reason, the present application proposes a special oil suction structure for servo pump control of injection molding machines. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above problems and / or the problems existing in the existing servo pumps of injection molding machines, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide a special oil suction structure for servo pump control of an injection molding machine. The end of the connecting pipe is docked with the end of the external threaded pipe, and then the connecting component is connected between the connecting pipe and the external threaded pipe. At the same time, the connecting gap is closed. When connected, the connecting pipe can be rotated on the connecting component to change the setting direction to avoid interference between the pipelines, which is convenient for disassembly and maintenance of the pipelines.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A special oil suction structure for servo pump control of an injection molding machine, comprising:

[0009] The oil suction flange comprises a flange plate and an externally threaded pipe, wherein the side of the flange plate is connected to the externally threaded pipe;

[0010] A connecting component connected to the externally threaded pipe, the connecting component comprising a connecting sleeve and an internal thread, wherein the connecting sleeve is provided with an internal thread connected to the externally threaded pipe;

[0011] The connecting pipe is connected in the connecting sleeve. The connecting pipe includes a pipe and a connecting retaining ring. The left end of the pipe is inserted into the connecting sleeve. The connecting retaining ring is arranged outside the pipe.

[0012] As a preferred solution of the servo pump-controlled special oil suction structure for an injection molding machine described in the utility model, the left end of the pipeline is butted against the right end of the externally threaded pipe, and a sealing gasket is provided at the connection between the pipeline and the externally threaded pipe.

[0013] As a preferred solution of the special oil suction structure for servo pump control of an injection molding machine described in the utility model, wherein: a notch is opened at the left end of the connecting sleeve, a fastening component is provided on the externally threaded tube, and the fastening component includes a sliding sleeve, a ramp and a spring, the sliding sleeve is provided on the outside of the externally threaded tube, a slope is provided on the inner wall of the sliding sleeve, and a spring is provided at the outer end of the sliding sleeve.

[0014] As a preferred solution of the special oil suction structure for servo pump control of an injection molding machine described in the utility model, wherein: when the spring is in a natural state, the sliding sleeve is located at the right end of the external threaded tube.

[0015] As a preferred solution of the special oil suction structure for servo pump control of an injection molding machine described in the utility model, the outer wall of the connecting sleeve is provided with a handle, and the outer wall of the handle is provided with an anti-slip sleeve.

[0016] As a preferred solution of the special oil suction structure for servo pump control of an injection molding machine described in the utility model, a sealing ring is provided between the inner wall of the connecting sleeve and the external threaded pipe.

[0017] As a preferred solution of the special oil suction structure for servo pump control of an injection molding machine described in the utility model, the outer wall of the sliding sleeve is provided with evenly distributed anti-slip ridges.

[0018] Compared with the prior art: the utility model arranges an external threaded pipe on the oil suction flange, the end of the connecting pipe is docked with the end of the external threaded pipe, and then the connecting component is connected between the connecting pipe and the external threaded pipe. At the same time, the connecting gap is closed. When connecting, the connecting pipe can be rotated on the connecting component to change the setting direction, avoiding interference between pipelines and facilitating pipeline disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0020] Figure 1 This is a schematic diagram of the shaft side structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the expanded structure of the utility model.

[0022] In the figure: 100 oil suction flange, 110 flange plate, 120 external threaded pipe, 200 connecting component, 210 connecting sleeve, 220 internal thread, 230 notch, 240 handle, 300 connecting pipe, 310 pipe, 320 connecting retaining ring, 330 sealing gasket, 400 fastening component, 410 sliding sleeve, 420 ramp, 430 spring. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0027] The utility model provides a special oil suction structure for servo pump control of injection molding machine. The end of the connecting pipe is connected to the end of the external threaded pipe, and then the connecting component is connected between the connecting pipe and the external threaded pipe. At the same time, the connection gap is closed. When connected, the connecting pipe can be rotated on the connecting component to change the setting direction, avoiding interference between the pipes and facilitating the removal and maintenance of the pipes. Figure 1-Figure 2, including: an oil suction flange 100, a connecting component 200 and a connecting pipe 300.

[0028] The oil suction flange 100 includes a flange 110 and an externally threaded pipe 120 . The side of the flange 110 is connected to the externally threaded pipe 120 . The externally threaded pipe 120 is located at the center of the side of the flange 110 to provide threaded connection support.

[0029] The connecting component 200 is connected to the external threaded pipe 120. The connecting component 200 includes a connecting sleeve 210 and an internal thread 220. The internal thread 220 connected to the external threaded pipe 120 is provided inside the connecting sleeve 210.

[0030] The left end of the connecting sleeve 210 is inserted into the external threaded tube 120 and is screwed onto the external threaded tube 120 via the internal thread 220 .

[0031] The connecting pipe 300 is connected to the connecting sleeve 210. The connecting pipe 300 includes a pipe 310 and a connecting retaining ring 320. The left end of the pipe 310 is inserted into the connecting sleeve 210. The connecting retaining ring 320 is provided outside the pipe 310.

[0032] The connecting retaining ring 320 at the left end of the pipe 310 is connected to the right end of the external threaded pipe 120 , and the pipe 310 is held at the right end of the connecting sleeve 210 by the connecting retaining ring 320 .

[0033] The left end of the pipe 310 is butted against the right end of the externally threaded pipe 120 , and a sealing gasket 330 is provided at the connection between the pipe 310 and the externally threaded pipe 120 to improve the sealing effect and prevent leakage from occurring at the gap.

[0034] Since the connecting sleeve 210 is easy to loosen and fall off, a notch 230 is opened at the left end of the connecting sleeve 210. A fastening component 400 is provided on the externally threaded tube 120. The fastening component 400 includes a sliding sleeve 410, a ramp 420 and a spring 430. The sliding sleeve 410 is arranged on the outside of the externally threaded tube 120. The inner wall of the sliding sleeve 410 is provided with a ramp 420. The outer end of the sliding sleeve 410 is provided with a spring 430.

[0035] Among them, when the spring 430 is in the natural state, the sliding sleeve 410 is located at the right end of the external threaded tube 120, and the right end of the sliding sleeve 410 is sleeved on the left end of the connecting sleeve 210, squeezing the notch 230 at the left end of the connecting sleeve 210 to shrink, so that the left end of the connecting sleeve 210 is tightened, thereby improving the connection stability and tightness and avoiding loosening. A sealing ring is provided between the inner wall of the connecting sleeve 210 and the external threaded tube 120 to ensure the sealing effect.

[0036] Since the connecting sleeve 210 needs to be rotated to be tightened, a handle 240 is provided on the outer wall of the connecting sleeve 210 , and an anti-slip cover is provided on the outer wall of the handle 240 , and the connecting sleeve 210 is rotated by the handle 240 .

[0037] Since the sliding sleeve 410 needs to be slid manually and the limit is cancelled, the outer wall of the sliding sleeve 410 is provided with evenly distributed anti-slip ridges to facilitate manual movement of the sliding sleeve 410.

[0038] During specific use, the connecting retaining ring 320 at the left end of the pipe 310 is connected to the right end of the external threaded pipe 120, the left end of the connecting sleeve 210 is inserted into the external threaded pipe 120, and is screwed to the external threaded pipe 120 through the internal thread 220. The pipe 310 is held at the right end of the connecting sleeve 210 by the connecting retaining ring 320, so that the pipe 310 can rotate at the right end of the connecting sleeve 210 without falling off. The spring 430 supports the sliding sleeve 410, so that it is located at the right end of the external threaded pipe 120 and the right end of the sliding sleeve 410 is sleeved on the left end of the connecting sleeve 210, squeezing the notch 230 at the left end of the connecting sleeve 210 to shrink, so that the left end of the connecting sleeve 210 is tightened, thereby improving the connection stability and tightness and preventing loosening.

[0039] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A special oil suction structure for servo pump control of injection molding machine, characterized in that: include: An oil suction flange (100) comprises a flange plate (110) and an externally threaded pipe (120), wherein a side edge of the flange plate (110) is connected to the externally threaded pipe (120); A connecting component (200) is connected to the externally threaded pipe (120), the connecting component (200) comprising a connecting sleeve (210) and an internal thread (220), the internal thread (220) being connected to the externally threaded pipe (120) being provided inside the connecting sleeve (210); A connecting pipe (300) is connected to the connecting sleeve (210). The connecting pipe (300) comprises a pipe (310) and a connecting retaining ring (320). The left end of the pipe (310) is inserted into the connecting sleeve (210), and a connecting retaining ring (320) is provided outside the pipe (310).

2. The special oil suction structure for servo pump control of an injection molding machine according to claim 1, characterized in that: The left end of the pipe (310) is butted against the right end of the externally threaded pipe (120), and a sealing gasket (330) is provided at the connection between the pipe (310) and the externally threaded pipe (120).

3. The special oil suction structure for servo pump control of an injection molding machine according to claim 1, characterized in that: A notch (230) is provided at the left end of the connecting sleeve (210); a fastening component (400) is provided on the externally threaded tube (120); the fastening component (400) comprises a sliding sleeve (410), a slope (420) and a spring (430); the sliding sleeve (410) is provided outside the externally threaded tube (120); the inner wall of the sliding sleeve (410) is provided with a slope (420); and a spring (430) is provided at the outer end of the sliding sleeve (410).

4. The special oil suction structure for servo pump control of an injection molding machine according to claim 3, characterized in that: When the spring (430) is in a natural state, the sliding sleeve (410) is located at the right end of the external threaded tube (120).

5. The special oil suction structure for servo pump control of an injection molding machine according to claim 1, characterized in that: The outer wall of the connecting sleeve (210) is provided with a handle (240), and the outer wall of the handle (240) is provided with an anti-slip sleeve.

6. The special oil suction structure for servo pump control of an injection molding machine according to claim 1, characterized in that: A sealing ring is provided between the inner wall of the connecting sleeve (210) and the externally threaded tube (120).

7. The special oil suction structure for servo pump control of an injection molding machine according to claim 4, characterized in that: The outer wall of the sliding sleeve (410) is provided with evenly distributed anti-slip ridges.

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