Non-welding clamping-sleeve-free sealing structure for hydraulic pipeline of injection molding machine

Abstract

The utility model relates to the field of injection molding machines, and discloses an injection molding machine hydraulic pipeline non-welding non-clamping-sleeve sealing structure which comprises an injection molding machine, a hydraulic pipeline is detachably installed on the injection molding machine through a fixing cover plate, the outer wall of the hydraulic pipeline is fixedly connected with the inner wall of the fixing cover plate, and a bolt A penetrates through the top of the fixing cover plate. The bottom of the bolt A is in threaded connection with the outer wall of the injection molding machine, a sealing mechanism is arranged on the inner wall of one fixed cover plate and comprises a rod body, and a shell is fixedly connected to the tops of the fixed cover plates. According to the utility model, through the design of the fixed cover plate, the fixed cover plate and the injection molding machine are connected and fixed by using the bolt A, so that the hydraulic pipeline is mounted without welding or clamping and sleeving, and the injection molding machine and the hydraulic pipeline are not easy to damage when the hydraulic pipeline needs to be dismounted; and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of injection molding machines, in particular to a non-welded and non-ferrule sealing structure for hydraulic pipelines of injection molding machines. Background Technique

[0002] Injection molding machines play an important role in modern industrial production. Their efficient and precise injection molding capabilities rely on a stable and reliable hydraulic system. Common injection molding machines are usually equipped with hydraulic pipelines to ensure the normal operation of the machines.

[0003] In the connection between injection molding machines and hydraulic pipelines, welding and ferrule sealing methods are usually adopted. However, the welding method has problems such as complex processes, high costs, and easy generation of welding defects. At the same time, after the hydraulic pipeline is connected to the injection molding machine, when the hydraulic pipeline needs to be disassembled, it not only takes time, but also causes certain damage to the hydraulic pipeline during the disassembly process. The ferrule sealing structure may have unstable sealing effects and easy leakage due to uneven deformation or improper installation of the ferrule. Therefore, a non-welded and non-ferrule sealing structure for hydraulic pipelines of injection molding machines is proposed to solve the above problems. Content of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a non-welded and non-ferrule sealing structure for hydraulic pipelines of injection molding machines, aiming to improve the problems of poor sealing effect and inconvenient disassembly in the connection between injection molding machines and hydraulic pipelines in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A non-welded and non-ferrule sealing structure for hydraulic pipelines of injection molding machines, including an injection molding machine, on which a hydraulic pipeline can be installed and disassembled through a fixed cover plate. The outer wall of the hydraulic pipeline is fixedly connected to the inner wall of the fixed cover plate. A bolt A penetrates through the top of the fixed cover plate, and the bottom of the bolt A is threadedly connected to the outer wall of the injection molding machine. There are two groups of fixed cover plates. A sealing mechanism is arranged on the inner wall of one group of fixed cover plates. The sealing mechanism includes a rod body. A housing is fixedly connected to the top of the fixed cover plate. A push rod is fixedly connected to the bottom of the rod body. A ring body is fixedly connected to the bottom of the push rod. A conical plate is fixedly connected to the bottom of the ring body. The bottom of the push rod is elastically connected to the inner wall of the fixed cover plate through a spring A. An annular handle is slidably connected to the inner wall of the rod body. A fixing mechanism is arranged on the annular handle. An expansion mechanism is arranged on the inner wall of the other group of fixed cover plates.

[0006] As a further description of the above technical solution:

[0007] The inner wall of the housing is slidably connected to the outer wall of the rod body, and the outer wall of the push rod is slidably connected to the inner wall of the fixed cover plate.

[0008] As a further description of the above technical solution:

[0009] The bottom of the push rod is fixedly connected to one end of spring A, and the other end of spring A is fixedly connected to the bottom of the inner wall of the fixed cover plate.

[0010] As a further description of the above technical solution:

[0011] The fixing mechanism includes a plugging rod, the other end of the plugging rod is plugged into a circular groove, the outer wall of the plugging rod is fixedly connected to one end of spring B, and the other end of spring B is fixedly connected to the inner wall of the rod body.

[0012] As a further description of the above technical solution:

[0013] The outer wall of the plugging rod is slidably connected to the inner wall of the rod body, and one end of the plugging rod is fixedly connected to the outer wall of the annular handle.

[0014] As a further description of the above technical solution:

[0015] The circular groove is opened on the outer wall of the housing.

[0016] As a further description of the above technical solution:

[0017] The expansion mechanism includes a base, the top of the base is fixedly connected with an annular airbag, the bottom of the base is fixedly connected with a mounting frame, and a bolt B penetrates through the outer wall of the mounting frame.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the bolt B penetrates through the mounting frame and is fixedly connected to the inner wall of another group of fixed cover plates.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, through the design of the fixed cover plate, the fixed cover plate is connected and fixed to the injection molding machine by using bolts A, so as to achieve the installation of the hydraulic pipeline without using welding or ferrule methods. When the hydraulic pipeline needs to be disassembled, neither the injection molding machine nor the hydraulic pipeline is easily damaged, and the service life of the equipment is extended.

[0022] 2. In the utility model, by providing a sealing mechanism, after the fixed cover plate is connected and fixed to the injection molding machine, by moving the arc-shaped handle, and in cooperation with the bottom arc-shaped cone design of the cone plate, the annular airbag is fully expanded to both sides, further improving the airtightness between the fixed cover plate and the injection molding machine after installation. Description of the Drawings

[0023] Figure 1The front view schematic diagram of a non-welded and non-ferrule-sealed structure for the hydraulic pipeline of an injection molding machine proposed by the present utility model;

[0024] Figure 2 The structural schematic diagram of the hydraulic pipeline of a non-welded and non-ferrule-sealed structure for the hydraulic pipeline of an injection molding machine proposed by the present utility model;

[0025] Figure 3 The structural schematic diagram of the fixed cover plate of a non-welded and non-ferrule-sealed structure for the hydraulic pipeline of an injection molding machine proposed by the present utility model;

[0026] Figure 4 The sectional structural schematic diagram of the fixed cover plate of a non-welded and non-ferrule-sealed structure for the hydraulic pipeline of an injection molding machine proposed by the present utility model;

[0027] Figure 5 The structural schematic diagram of the base of a non-welded and non-ferrule-sealed structure for the hydraulic pipeline of an injection molding machine proposed by the present utility model;

[0028] Figure 6 The structural schematic diagram of the conical plate of a non-welded and non-ferrule-sealed structure for the hydraulic pipeline of an injection molding machine proposed by the present utility model;

[0029] Figure 7 The sectional structural schematic diagram of the conical plate of a non-welded and non-ferrule-sealed structure for the hydraulic pipeline of an injection molding machine proposed by the present utility model.

[0030] Legend:

[0031] 1. Injection molding machine; 2. Hydraulic pipeline; 3. Fixed cover plate; 4. Sealing mechanism; 401. Rod body; 402. Ring handle; 403. Outer shell; 404. Push rod; 405. Spring A; 406. Ring body; 407. Conical plate; 408. Spring B; 5. Expansion mechanism; 501. Base; 502. Mounting frame; 503. Annular airbag; 6. Fixing mechanism; 601. Inserting rod; 602. Circular groove; 7. Quick fixing mechanism; 701. Wedge block; 702. Rectangular groove. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] Refer to Figure 1 - Figure 3, An embodiment provided by the present utility model: A non-welded and non-ferrule sealing structure for the hydraulic pipeline of an injection molding machine, including an injection molding machine 1. A hydraulic pipeline 2 can be installed and disassembled on the injection molding machine 1 through a fixed cover plate 3. The hydraulic pipeline 2 and the injection molding machine 1 are installed and fixed through the fixed cover plate 3. The outer wall of the hydraulic pipeline 2 is fixedly connected to the inner wall of the fixed cover plate 3. A bolt A penetrates through the top of the fixed cover plate 3, and the bottom of the bolt A is threadedly connected to the outer wall of the injection molding machine 1. There are two groups of fixed cover plates 3, and there are multiple groups of hydraulic pipelines 2 to be installed on the injection molding machine 1. When it is necessary to connect two groups of hydraulic pipelines 2 to each other, a sealing mechanism 4 is arranged on the inner wall of one group of fixed cover plates 3, and an expansion mechanism 5 is arranged on the top of the other group of fixed cover plates 3, as Figure 2 , Figure 3 shown. And when it is necessary to connect a group of hydraulic pipelines 2 to the injection molding machine 1, the expansion mechanism 5 can be installed on the top of the pipeline through-hole of the injection molding machine 1 by means of fixing with bolt B, as Figure 5 shown.

[0034] Referring to Figure 4 , Figure 6 , Figure 7 , a sealing mechanism 4 is arranged on the inner wall of one group of fixed cover plates 3. The sealing mechanism 4 includes a rod body 401. The top of the fixed cover plate 3 is fixedly connected to a housing 403, so that the fixed cover plate 3 provides a support and fixation effect for the housing 403. The inner wall of the housing 403 is slidably connected to the outer wall of the rod body 401, keeping the rod body 401 moving vertically along the inner wall of the housing 403. The bottom of the rod body 401 is fixedly connected to a push rod 404, so that the push rod 404 moves vertically along the inner wall of the fixed cover plate 3 while the rod body 401 moves vertically. The outer wall of the push rod 404 is slidably connected to the inner wall of the fixed cover plate 3, maintaining the stability of the push rod 404 during the movement. The bottom of the push rod 404 is fixedly connected to a ring body 406, so that the push rod 404 drives the ring body 406 to move vertically at the same time. The bottom of the ring body 406 is fixedly connected to a conical plate 407. During the downward movement of the ring body 406, the conical plate 407 is driven to squeeze the annular airbag 503 arranged at the bottom.

[0035] Referring to Figure 3 - Figure 4 , the bottom of the push rod 404 is elastically connected to the inner wall of the fixed cover plate 3 through a spring A405. The bottom of the push rod 404 is fixedly connected to one end of the spring A405, and the other end of the spring A405 is fixedly connected to the bottom of the inner wall of the fixed cover plate 3. The spring A405 drives the push rod 404 to move upward for reset.

[0036] Referring to Figure 3 - Figure 4, a ring handle 402 is slidably connected to the inner wall of the rod body 401, enabling the ring handle 402 to move horizontally along the inner wall of the rod body 401. A fixing mechanism 6 is provided on the ring handle 402. The fixing mechanism 6 includes a plugging rod 601. The outer wall of the plugging rod 601 is slidably connected to the inner wall of the rod body 401, maintaining the horizontal movement of the plugging rod 601 along the inner wall of the rod body 401. One end of the plugging rod 601 is fixedly connected to the outer wall of the ring handle 402, so that the plugging rod 601 is driven to contract inward simultaneously during the process of moving the ring handle 402. The other end of the plugging rod 601 is plugged into a circular groove 602. The circular groove 602 is opened on the outer wall of the housing 403, and two groups of circular grooves 602 are provided, corresponding to the conical plate 407 away from the annular airbag 503 and the conical plate 407 squeezing the annular airbag 503 respectively. The outer wall of the plugging rod 601 is fixedly connected to one end of a spring B 408. The other end of the spring B 408 is fixedly connected to the inner wall of the rod body 401. The spring B 408 drives the plugging rod 601 to move outward, so that the plugging rod 601 maintains the plugging and fixing effect with the circular groove 602.

[0037] Refer to Figure 3 , Figure 5 , an expansion mechanism 5 is provided on the inner wall of the other set of fixing covers 3. The expansion mechanism 5 includes a base 501. The top of the base 501 is fixedly connected to an annular airbag 503, so that the top of the base 501 is connected and fixed to the bottom of the annular airbag 503, maintaining the stability of the annular airbag 503 during use. The bottom of the base 501 is fixedly connected to a mounting frame 502, so that the base 501 is installed on the top of the fixing cover 3 through the mounting frame 502, or installed on the top of the pipeline through hole of the injection molding machine 1. A bolt B penetrates through the outer wall of the mounting frame 502. The outer wall of the bolt B penetrates through the mounting frame 502 and is fixedly connected to the inner wall of the other set of fixing covers 3. The mounting frame 502 is fixed by the penetration of the bolt B, ensuring the stability of the mounting frame 502 after installation.

[0038] Working principle: When the hydraulic pipeline 2 needs to be installed on the outer wall of the injection molding machine 1, first, the expansion mechanism 5 is installed on the top of the pipeline through hole of the injection molding machine 1 by the bolt B, and then the fixing cover 3 is placed downward along the direct upper part of the expansion mechanism 5, so that the fixing cover 3 is installed on the top of the pipeline through hole of the injection molding machine 1, and the fixing cover 3 is connected and fixed to the injection molding machine 1 by matching with the bolt A, achieving the effect of installing and connecting the hydraulic pipeline 2 to the injection molding machine 1 without welding and ferrule, and realizing the effect that the hydraulic pipeline 2 is not easily damaged during multiple disassembly and assembly.

[0039] After the fixed cover plate 3 is installed, first pull the annular handle 402 outwards, so that the annular handle 402 moves horizontally along the inner wall of the rod body 401, and the annular handle 402 drives the insertion rod 601 to separate from the inner wall of the upper circular groove 602, so as to achieve the effect of releasing the fixation of the annular handle 402 and the conical plate 407. Then move the annular handle 402 downwards, so that the annular handle 402 drives the push rod 404 and the ring body 406 to move downwards, and the conical plate 407 arranged at the bottom of the ring body 406 squeezes the top of the annular airbag 503 arranged at the bottom. Due to the design of the arc cone head at the bottom of the conical plate 407, the squeezing effect on the center of the annular airbag 503 is greater, resulting in the annular airbag 503 expanding and extending towards the inner and outer sides. The extended annular airbag 503 fills the gap between the fixed cover plate 3 and the injection molding machine 1, so as to achieve the effect of full sealing and the effect of not easily leaking oil. At the same time, cooperate with the spring B 408 and the insertion rod 601 to insert and fix the lower circular groove 602, so as to achieve the purpose of keeping the conical plate 407 squeezing the annular airbag 503.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A non-welded and sleeve-free sealing structure for a hydraulic pipeline of an injection molding machine, characterized in that: The invention comprises an injection molding machine (1), wherein a hydraulic pipeline (2) can be installed and removed on the injection molding machine (1) via a fixed cover plate (3), wherein the outer wall of the hydraulic pipeline (2) is fixedly connected to the inner wall of the fixed cover plate (3), wherein a bolt A penetrates through the top of the fixed cover plate (3), wherein the bottom of the bolt A is threadedly connected to the outer wall of the injection molding machine (1), wherein the fixed cover plate (3) is provided with two groups, wherein the inner wall of one group of the fixed cover plates (3) is provided with a sealing mechanism (4), wherein the sealing mechanism (4) comprises a rod body (401), and wherein the top of the fixed cover plate (3) is fixedly connected to a housing (401). 03), the bottom of the rod body (401) is fixedly connected to a push rod (404), the bottom of the push rod (404) is fixedly connected to a ring body (406), the bottom of the ring body (406) is fixedly connected to a cone plate (407), the bottom of the push rod (404) is elastically connected to the inner wall of the fixed cover plate (3) through a spring A (405), the inner wall of the rod body (401) is slidably connected to an annular handle (402), a fixing mechanism (6) is arranged on the annular handle (402), and another group of the inner walls of the fixed cover plates (3) are provided with an expansion mechanism (5).

2. According to claim 1, a non-welded and sleeve-free sealing structure for hydraulic pipelines of an injection molding machine, characterized in that: The inner wall of the outer shell (403) is slidably connected to the outer wall of the rod body (401), and the outer wall of the push rod (404) is slidably connected to the inner wall of the fixed cover plate (3).

3. The non-welded and sleeve-free sealing structure for hydraulic pipelines of an injection molding machine according to claim 1, characterized in that: The bottom of the push rod (404) is fixedly connected to one end of a spring A (405), and the other end of the spring A (405) is fixedly connected to the bottom of the inner wall of the fixed cover plate (3).

4. The non-welded and sleeve-free sealing structure for hydraulic pipelines of an injection molding machine according to claim 1, characterized in that: The fixing mechanism (6) comprises a plug-in rod (601), the other end of which is plugged into a circular groove (602), the outer wall of the plug-in rod (601) being fixedly connected to one end of a spring B (408), and the other end of the spring B (408) being fixedly connected to the inner wall of the rod body (401).

5. The non-welding and sleeve-free sealing structure for hydraulic pipelines of an injection molding machine according to claim 4, characterized in that: The outer wall of the plug-in rod (601) is slidably connected to the inner wall of the rod body (401), and one end of the plug-in rod (601) is fixedly connected to the outer wall of the annular handle (402).

6. The non-welding and sleeve-free sealing structure for hydraulic pipelines of an injection molding machine according to claim 5, characterized in that: The circular groove (602) is formed on the outer wall of the housing (403).

7. The non-welding and sleeve-free sealing structure for hydraulic pipelines of an injection molding machine according to claim 1, characterized in that: The expansion mechanism (5) comprises a base (501), the top of the base (501) is fixedly connected to a ring-shaped airbag (503), the bottom of the base (501) is fixedly connected to a mounting frame (502), and the outer wall of the mounting frame (502) is penetrated by bolts B.

8. The non-welding and sleeve-free sealing structure for hydraulic pipelines of an injection molding machine according to claim 7, characterized in that: The outer wall of the bolt B passes through the mounting frame (502) and is fixedly connected to the inner wall of another set of fixed cover plates (3).

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