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

Abstract

The invention 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, the injection molding machine is detachably provided with a hydraulic pipeline 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 invention, 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, 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 invention relates to the technical field of injection molding machines, in particular to a non-welded and sleeve-free sealing structure for a hydraulic pipeline of an injection molding machine. Background Art

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

[0003] In the connection between the injection molding machine and the hydraulic pipeline, welding and ferrule sealing methods are usually used. However, the welding method has problems such as complex process, high cost, and easy 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 delays time, but also causes certain damage to the hydraulic pipeline during the disassembly process. The ferrule sealing structure may cause unstable sealing effect and easy leakage due to uneven deformation of the ferrule or improper installation. Therefore, a non-welded ferrule-free sealing structure for the hydraulic pipeline of an injection molding machine is proposed to solve the above problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a non-welded and sleeve-free sealing structure for the hydraulic pipeline of an injection molding machine, which solves the problems in the prior art of poor connection between the injection molding machine and the hydraulic pipeline, poor sealing effect, and inconvenient disassembly.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a non-welded and sleeve-free sealing structure for a hydraulic pipeline of an injection molding machine, comprising an injection molding machine, on which a hydraulic pipeline can be installed and removed 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, the bottom of the bolt A is threadedly connected to the outer wall of the injection molding machine, and the fixed cover plate is provided with two groups;

[0006] A sealing mechanism is provided on the inner wall of a group of the fixed cover plates. The staff manually presses the sealing mechanism to operate it, so as to fill the gap generated after the fixed cover plates are installed and connected. The sealing mechanism includes a rod body, and the inner wall of the rod body is slidably connected with a ring handle;

[0007] The annular handle is provided with a fixing mechanism to keep the vertical position of the sealing mechanism unchanged before and after use;

[0008] The inner wall of the other group of fixed cover plates is provided with an expansion mechanism, which expands toward the outer shape when pressed downward in cooperation with the sealing mechanism.

[0009] Preferably, the top of the fixed cover plate is fixedly connected to the outer shell, the bottom of the rod body is fixedly connected to the push rod, the bottom of the push rod is fixedly connected to the ring body, the bottom of the ring body is fixedly connected to the cone plate, and the bottom of the push rod is elastically connected to the inner wall of the fixed cover plate through a spring A.

[0010] Preferably, the inner wall of the outer shell 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.

[0011] Preferably, the bottom of the cone plate is in the shape of an arc-shaped cone head.

[0012] Preferably, the bottom of the push rod is fixedly connected to one end of the spring A, and the other end of the spring A is fixedly connected to the bottom of the inner wall of the fixed cover plate.

[0013] Preferably, the fixing mechanism includes a plug-in rod, the other end of which is plugged with a circular groove, the outer wall of the plug-in rod is fixedly connected to one end of a spring B, and the other end of the spring B is fixedly connected to the inner wall of the rod body.

[0014] Preferably, the outer wall of the plug-in rod is slidably connected to the inner wall of the rod body, and one end of the plug-in rod is fixedly connected to the outer wall of the annular handle.

[0015] Preferably, the circular groove is opened on the outer wall of the shell.

[0016] Preferably, the expansion mechanism includes a base, the top of the base is fixedly connected to an annular airbag, the bottom of the base is fixedly connected to a mounting frame, and the outer wall of the mounting frame is penetrated by bolts B.

[0017] Preferably, the outer wall of the bolt B passes through the mounting frame and is fixedly connected to the inner wall of another set of fixed cover plates.

[0018] The present invention provides a non-welding and sleeve-free sealing structure for a hydraulic pipeline of an injection molding machine. It has the following beneficial effects:

[0019] 1. The present invention adopts the design of a fixed cover plate and connects and fixes the fixed cover plate to the injection molding machine by using bolts A, thereby achieving installation of the hydraulic pipeline without using welding or ferrules. When the hydraulic pipeline needs to be disassembled, the injection molding machine and the hydraulic pipeline are not easily damaged, thereby extending the service life of the equipment.

[0020] 2. The present invention is provided with a sealing mechanism, so that after the fixed cover plate is connected and fixed to the injection molding machine, the annular airbag can be fully expanded to both sides by moving the arc handle in conjunction with the arc cone head design at the bottom of the cone plate, thereby further improving the airtightness between the fixed cover plate and the injection molding machine after installation.

[0021] 3. The present invention is provided with a quick fixing mechanism, so that the push plate and the cone head can be quickly driven down by directly pressing down the annular handle, and the wedge block is driven to pop out and be clamped and fixed with the rectangular groove by the force of the spring B, thereby improving the efficiency of the sealing mechanism when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the hydraulic pipeline structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the fixed cover plate structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the fixed cover plate of the present invention;

[0026] Figure 5 It is a schematic diagram of the base structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the cone-plate structure of the present invention;

[0028] Figure 7 It is a schematic diagram of the cross-sectional structure of the cone plate of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the quick fixing mechanism of the second embodiment of the present invention.

[0030] Among them, 1. injection molding machine; 2. hydraulic pipeline; 3. fixed cover plate; 4. sealing mechanism; 401. rod body; 402. ring handle; 403. shell; 404. push rod; 405. spring A; 406. ring body; 407. cone plate; 408. spring B; 5. expansion mechanism; 501. base; 502. mounting frame; 503. annular airbag; 6. fixing mechanism; 601. plug-in rod; 602. circular groove; 7. quick fixing mechanism; 701. wedge block; 702. rectangular groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1:

[0033] Please refer to the attached Figure 1 -Attached Figure 8The embodiment of the present invention provides a non-welded and sleeve-free sealing structure for a hydraulic pipeline of an injection molding machine, including an injection molding machine 1, on which a hydraulic pipeline 2 can be installed and removed through a fixed cover plate 3, the hydraulic pipeline 2 is installed and fixed to the injection molding machine 1 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, the top of the fixed cover plate 3 is penetrated by a bolt A, the bottom of the bolt A is threadedly connected to the outer wall of the injection molding machine 1, two groups of fixed cover plates 3 are provided, and there are multiple groups of hydraulic pipelines 2 that need to be installed on the injection molding machine 1, when the two groups of hydraulic pipelines 2 need to be connected to each other, a sealing mechanism 4 is provided on the inner wall of one group of fixed cover plates 3, and an expansion mechanism 5 is provided on the top of the other group of fixed cover plates 3, such as Figure 2 , Figure 3 As shown, when a set of hydraulic pipelines 2 needs to be connected to the injection molding machine 1, the expansion mechanism 5 is fixed on the top of the pipeline through hole of the injection molding machine 1 by bolts B, as shown in FIG. Figure 5 shown.

[0034] A sealing mechanism 4 is provided on the inner wall of a group of fixed cover plates 3, and the sealing mechanism 4 includes a rod body 401. The top of the fixed cover plate 3 is fixedly connected with an outer shell 403, so that the fixed cover plate 3 provides a supporting and fixing effect for the outer shell 403. The inner wall of the outer shell 403 is slidably connected to the outer wall of the rod body 401, so that the rod body 401 is kept moving vertically along the inner wall of the outer shell 403. The bottom of the rod body 401 is fixedly connected with a push rod 404, so that the push rod 404 is driven to move vertically along the inner wall of the fixed cover plate 3 at the same time during the vertical movement of the rod body 401. The outer wall of the push rod 404 is slidably connected to the inner wall of the fixed cover plate 3 to maintain the stability of the push rod 404 during the movement. The bottom of the push rod 404 is fixedly connected with 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 with a cone plate 407. During the downward movement of the ring body 406, the cone plate 407 is driven to squeeze the annular airbag 503 arranged at the bottom.

[0035] 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. The other end of the spring A405 is fixedly connected to the bottom of the inner wall of the fixed cover plate 3. The force of the spring A405 drives the push rod 404 to move upward for reset.

[0036] The inner wall of the rod body 401 is slidably connected with an annular handle 402, so that the annular handle 402 can move laterally along the inner wall of the rod body 401. A fixing mechanism 6 is provided on the annular handle 402, and the fixing mechanism 6 includes a plug-in rod 601. The outer wall of the plug-in rod 601 is slidably connected with the inner wall of the rod body 401 to keep the plug-in rod 601 moving laterally along the inner wall of the rod body 401. One end of the plug-in rod 601 is fixedly connected with the outer wall of the annular handle 402, so that the plug-in rod 601 is driven to retract inwards during the movement of the annular handle 402. The other end of the connecting rod 601 is plugged with a circular groove 602, which is opened on the outer wall of the shell 403, and there are two groups of circular grooves 602, which respectively correspond to the cone plate 407 moving away from the annular airbag 503 and the cone plate 407 squeezing the annular airbag 503. The outer wall of the connecting rod 601 is fixedly connected to one end of the spring B408, and the other end of the spring B408 is fixedly connected to the inner wall of the rod body 401. The connecting rod 601 is driven to move outward by the force of the spring B408, so that the connecting rod 601 maintains the plug-in and fixing effect with the circular groove 602.

[0037] The inner wall of another set of fixed cover plates 3 is provided with an expansion mechanism 5, and the expansion mechanism 5 includes a base 501. The top of the base 501 is fixedly connected with an annular airbag 503, so that the top of the base 501 is connected and fixed to the bottom of the annular airbag 503 to maintain the stability of the annular airbag 503 during use. The bottom of the base 501 is fixedly connected with a mounting frame 502, so that the base 501 can be installed on the top of the fixed cover plate 3 or on the top of the pipeline through hole of the injection molding machine 1 through the mounting frame 502. The outer wall of the mounting frame 502 is penetrated by a bolt B. The outer wall of the bolt B penetrates the mounting frame 502 and is fixedly connected to the inner wall of another set of fixed cover plates 3. The mounting frame 502 is fixed by the bolt B to ensure the stability of the mounting frame 502 after installation.

[0038] Working principle: When the outer wall of the injection molding machine 1 needs to install the hydraulic pipeline 2, the expansion mechanism 5 is first installed on the top of the pipeline through-hole of the injection molding machine 1 through the bolt B, and then the fixed cover plate 3 is placed downward just above the expansion mechanism 5, so that the fixed cover plate 3 is installed on the top of the pipeline through-hole of the injection molding machine 1, and the fixed cover plate 3 is connected and fixed to the injection molding machine 1 with the bolt A, so that the hydraulic pipeline 2 is installed and connected to the injection molding machine 1 without welding or ferrules, and the hydraulic pipeline 2 is not easily damaged after multiple disassembly and assembly.

[0039] After the fixed cover plate 3 is installed, the annular handle 402 is first pulled outward to move the annular handle 402 laterally along the inner wall of the rod body 401, so that the annular handle 402 drives the plug rod 601 to separate from the inner wall of the circular groove 602 above, thereby achieving the effect of releasing the fixing of the annular handle 402 and the cone plate 407, and then the annular handle 402 is moved downward to drive the push rod 404 and the ring body 406 to move downward, so that the cone plate 407 provided at the bottom of the ring body 406 presses against the annular airbag 503 provided at the bottom. The annular airbag 503 is squeezed at the bottom, and due to the design of the arc cone head at the bottom of the cone plate 407, the center of the annular airbag 503 is squeezed more, causing the annular airbag 503 to expand and extend to the inside and outside, so that the extended annular airbag 503 fills the gap between the fixed cover plate 3 and the injection molding machine 1, thereby achieving a full sealing effect and achieving an effect of not easy oil leakage. At the same time, the spring B408 and the plug-in rod 601 are used to plug and fix the circular groove 602 below, so as to achieve the purpose of keeping the cone plate 407 squeezing the annular airbag 503.

[0040] Embodiment 2

[0041] Reference Figure 8 The utility model replaces the fixing mechanism 6 on the basis of the first embodiment: a non-welded sleeve-free sealing structure for a hydraulic pipeline of an injection molding machine, comprising a quick fixing mechanism 7, the quick fixing mechanism 7 comprising a wedge 701, the outer wall of the wedge 701 is fixedly connected to the outer wall of the annular handle 402, so that the wedge 701 is driven to move laterally at the same time during the lateral movement of the annular handle 402, the outer wall of the wedge 701 is slidably connected to the inner wall of the rod body 401, so that the wedge 701 moves along the inner wall of the rod body 401, and can be retracted into the inner wall of the rod body 401 for storage, the outer shell 4 03 is provided with a rectangular groove 702 on the outer wall, and the rectangular groove 702 is provided with two groups. The two groups of rectangular grooves 702 correspond to the vertical position change of the wedge block 701. The inner wall of the rectangular groove 702 is clamped with the outer wall of the wedge block 701, so as to achieve the effect of fixing the vertical position of the annular handle 402 and the cone plate 407. The outer wall of the wedge block 701 is fixedly connected with one end of the spring B408, and the other end of the spring B408 is fixedly connected with the inner wall of the rod body 401. The wedge block 701 is driven to move outward by the force of the spring B408, so that the wedge block 701 maintains the clamping and fixing effect with the rectangular groove 702.

[0042] Working principle: When it is necessary to use the cone plate 407 to squeeze the annular airbag 503, the quick fixing mechanism 7 is used to make the staff press down the annular handle 402, so that the annular handle 402 drives the wedge block 701 to move directly downward, so that the bottom arc surface of the wedge block 701 is squeezed with the inner wall of the rectangular groove 702 above, and the wedge block 701 is contracted along the inner wall of the rod body 401, thereby quickly driving the rod body 401 and the cone plate 407 to move downward, and when moving to the rectangular groove 702 set below, the wedge block 701 is automatically popped out by the force of the spring B408 to be clamped and fixed with the inner wall of the rectangular groove 702, so as to achieve the purpose of self-locking the annular handle 402 and the cone plate 407. On the basis of Example 1, the efficiency of the sealing mechanism 4 during use is improved.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

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), a bolt A passes 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), and the fixed cover plate (3) is provided with two groups; A sealing mechanism (4) is provided on the inner wall of a group of the fixed cover plates (3), and a worker manually presses the sealing mechanism (4) to operate the sealing mechanism to fill the gap generated after the fixed cover plates (3) are installed and connected, and the sealing mechanism (4) includes a rod body (401), and the inner wall of the rod body (401) is slidably connected to a ring handle (402); The annular handle (402) is provided with a fixing mechanism (6) for maintaining the vertical position of the sealing mechanism (4) before and after use; The inner wall of the other group of fixed cover plates (3) is provided with an expansion mechanism (5) which expands toward the outer shape when pressed downward in cooperation with the sealing mechanism (4).

2. The non-welded and sleeve-free sealing structure for hydraulic pipelines of an injection molding machine according to claim 1, characterized in that: The top of the fixed cover plate (3) is fixedly connected to a housing (403), 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), and the bottom of the push rod (404) is elastically connected to the inner wall of the fixed cover plate (3) via a spring A (405).

3. The non-welded and sleeve-free sealing structure for hydraulic pipelines of an injection molding machine according to claim 2, 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).

4. The non-welded and sleeve-free sealing structure for hydraulic pipelines of an injection molding machine according to claim 2, characterized in that: The bottom of the cone plate (407) is in the shape of an arc-shaped cone head.

5. The non-welding and sleeve-free sealing structure for hydraulic pipelines of an injection molding machine according to claim 2, 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).

6. 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).

7. The non-welded and sleeve-free sealing structure for hydraulic pipelines of an injection molding machine according to claim 6, 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).

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

9. The non-welded 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.

10. The non-welding and sleeve-free sealing structure for hydraulic pipelines of an injection molding machine according to claim 9, 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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