Injection molding device for hose connector of dust collector

Abstract

The utility model discloses a dust collector hose connector injection molding device which is used for injection molding of a special-shaped dust collector hose connector, and two outer molds of a connector outer side molding structure synchronously move towards each other or away from each other through an air pressure adjusting seat to open and close the molds. A first mounting base drives a first mold core of a joint straight pipe structure inner side forming structure to open and close a closed outer mold, a swing arm drives a second mold core of a joint bent pipe structure inner side forming structure to rotate and be in butt joint, mold opening and closing are achieved with the closed outer mold, and a guide rail and an arc-shaped guide groove are matched, so that injection molding of a special-shaped pipe body is achieved; the outer mold and the mold core are more convenient and accurate to open and close, the formed mold cavity is more matched with the shape of an injection molding part, the magnet realizes magnetic attraction positioning of the outer mold and the mold core, and the mold closing tightness and the injection molding quality are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding devices, in particular to an injection molding device for a vacuum cleaner hose connector. Background Art

[0002] Vacuum cleaner hose connectors are mostly made using the injection molding process. In actual production, there is a large demand for the manufacture of special-shaped connectors. However, when the current injection molding device is used to manufacture special-shaped hollow tubes, it is impossible to achieve the docking of the outer mold and mold core of the special-shaped casting cavity, tight mold closing, and mold opening. The adaptability to the required finished product shape is low, resulting in poor injection molding quality of the vacuum cleaner hose connector. Utility Model Content

[0003] The purpose of the utility model is to provide an injection molding device for a vacuum cleaner hose connector to solve the problem that when an injection molding device is used to manufacture a special-shaped hollow tube body, the outer mold and the mold core of the special-shaped casting mold cavity cannot be connected, the mold cannot be tightly closed, and the mold cannot be opened, resulting in low adaptability to the desired finished product shape, resulting in poor injection molding quality of the vacuum cleaner hose connector.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a vacuum cleaner hose connector injection molding device, comprising:

[0005] Upper die seat;

[0006] A lower die base is connected to the lower portion of the upper die base via a lifting rod;

[0007] The outer mold clamping mechanism includes two semi-annular outer molds and an air pressure regulating seat for driving the outer mold to open and close. The outer mold is connected to an external plastic supply device through a hose, and the air pressure regulating seat is connected to an external air pressure regulating device.

[0008] The first mold core clamping mechanism includes a straight first mold core and a first mounting base connected to the first mold core, wherein the first mounting base is driven by a telescopic motor or cylinder on the inner side of the lower mold base;

[0009] The second mold core clamping mechanism includes an arc-shaped second mold core, a second mounting seat connected to the second mold core, and a swing arm that drives the second mounting seat to rotate. The swing arm is driven by a rotating motor on the inner side of the upper mold base.

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

[0011] The outer mold is slidably connected to the air pressure regulating seat. A first sliding block is provided at the bottom of the outer mold. The first sliding block penetrates the sliding hole of the air pressure regulating seat and is slidably connected to the top of the cavity.

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

[0013] The cavity is an O-type cavity, and the top of the cavity forms a normal pressure cavity between the two first sliders, which is connected to the outside through the sliding hole. The cavity forms a C-type variable pressure cavity outside the two first sliders, which is connected to the air pressure regulating device.

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

[0015] The inner bottom surface of the lower die seat is provided with a guide rail for guiding the first mounting seat.

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

[0017] A second sliding block is provided on the side surface of the second mounting seat, and the second sliding block is slidably connected to the arc-shaped guide grooves on the inner side surfaces of the upper die seat and the lower die seat.

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

[0019] Magnets for assisting mold closing are provided on the butting surfaces of the first mounting seat, the second mounting seat and the outer mold.

[0020] As a further description of the above technical solution:

[0021] A first magnet is provided on the top of the second mounting seat, and a second magnet is provided on the inner side surface of the upper mold seat at the top of the movable range of the second mounting seat.

[0022] In summary, due to the adoption of the above technical solution, the present invention has the following advantages compared with the prior art:

[0023] Beneficial effects:

[0024] This injection molding device is used for the injection molding of special-shaped vacuum cleaner hose connectors. Through the air pressure adjustment seat, the two outer molds of the outer molding structure of the connector can be synchronously moved toward or away from each other and the membranes can be opened and closed. The first mounting seat drives the first mold core of the inner molding structure of the straight tube structure of the connector to open and close the mold with the closed outer mold. The swing arm drives the second mold core of the inner molding structure of the curved tube structure of the connector to rotate and dock with the closed outer mold to realize mold opening and closing. With the help of guide rails and arc-shaped guide grooves, the injection molding of the special-shaped tube body and the opening and closing of the outer mold and mold core are more convenient and accurate, and the formed casting mold cavity is more matched with the shape of the injection molded part. The magnet realizes magnetic attraction positioning of the outer mold and mold core to ensure mold tightness and injection molding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a front cross-sectional view of an injection molding device for a vacuum cleaner hose connector during mold opening.

[0027] Figure 2 This is a top view of the lower mold base in an injection molding device for a vacuum cleaner hose connector.

[0028] Figure 3 This is a front cross-sectional view of an injection molding device for a vacuum cleaner hose connector when the mold is closed.

[0029] Legend:

[0030] 1. Upper die base; 2. Lower die base; 3. Lifting rod; 4. Outer die; 41. First slider; 5. Air pressure adjustment seat; 51. Slide hole; 52. Cavity; 6. First mold core; 61. First mounting seat; 62. Guide rail; 7. Second mold core; 71. Second mounting seat; 711. Second slider; 712. First magnet; 72. Swing arm; 8. Arc guide groove; 9. Second magnet. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0033] See also Figure 1-3 The utility model provides a technical solution: an injection molding device for a vacuum cleaner hose connector, comprising:

[0034] Upper die base 1;

[0035] The lower die base 2 is connected to the lower portion of the upper die base 1 by a lifting rod 3;

[0036] The outer mold clamping mechanism includes two semi-annular outer molds 4 and an air pressure regulating seat 5 that drives the outer mold 4 to open and close. The outer mold 4 is connected to an external plastic supply device via a hose, and the air pressure regulating seat 5 is connected to the external air pressure regulating device. In this embodiment, the plastic supply device is used to heat plastic to a molten state and inject it into the outer mold 4 through the hose. The air pressure regulating device is used to quantitatively inject or extract gas from the air pressure regulating seat 5 to regulate the air pressure, thereby achieving opening and closing of the outer mold 4 by the internal and external pressure difference.

[0037] The first mold core clamping mechanism includes a straight first mold core 6 and a first mounting base 61 connected to the first mold core 6. The first mounting base 61 is driven by a telescopic motor or cylinder on the inner side of the lower mold base 2.

[0038] The second mold core clamping mechanism includes an arc-shaped second mold core 7, a second mounting base 71 connected to the second mold core 7, and a swing arm 72 for driving the second mounting base 71 to rotate. The swing arm 72 is driven by a rotating motor on the inner side of the upper mold base 1.

[0039] This injection molding device is used for the injection molding of special-shaped vacuum cleaner hose connectors including straight tube and curved tube structures. The air pressure regulating seat 5 is used to realize the opening and closing membrane of the outer mold 4 of the outer molding structure of the connector. The first mounting seat 61 drives the first mold core 6 of the inner molding structure of the straight tube structure of the connector to open and close the mold with the closed outer mold 4. The swing arm 72 drives the second mold core 7 of the inner molding structure of the curved tube structure of the connector to rotate and dock with the closed outer mold 4 to realize the opening and closing of the mold, so that the injection molding of the special-shaped tube body and the opening and closing of the outer mold and mold core are more convenient, and the formed casting mold cavity is more matched with the shape of the injection molded part, thereby ensuring the injection molding quality.

[0040] Among them, the opening and closing mold structure of the outer mold 4 is specifically as follows: the outer mold 4 is slidably connected to the air pressure regulating seat 5, a first slider 41 is set at the bottom of the outer mold 4, the first slider 41 penetrates the sliding hole 51 of the air pressure regulating seat 5 and is slidably connected to the top of the cavity 52.

[0041] The cavity 52 is an O-shaped cavity. The top of the cavity 52 forms a normal-pressure cavity between the two first sliders 41, connected to the outside world through the slide hole 51. The cavity 52 forms a C-shaped variable-pressure cavity outside the two first sliders 41, connected to the air pressure regulating device. During use, gas is injected into the variable-pressure cavity through the air pressure regulating device to achieve internal pressurization. This creates an equal thrust on the two first sliders 41 due to the internal and external pressure differential, causing the two outer molds 4 to move toward each other synchronously, achieving mold closing. When the mold needs to be opened after injection molding, the gas in the variable-pressure cavity is extracted, causing the air pressure between the first sliders 41 to exceed the internal pressure of the variable-pressure cavity, causing the outer mold 4 to move outward, achieving mold opening.

[0042] In order to improve the movement stability of the first mold core 6 and the accuracy of docking with the outer mold 4, a guide rail 62 for guiding the first mounting seat 61 is set on the inner bottom surface of the lower mold base 2 to provide precise guidance and assist in docking and opening and closing the mold.

[0043] A second slider 711 is provided on the side of the second mounting seat 71 , and the second slider 711 is slidably connected to the arc guide groove 8 formed by the inner side surfaces of the upper mold base 1 and the lower mold base 2 to improve the movement stability of the second mold core 7 and the accuracy of docking with the outer mold 4.

[0044] In order to further improve the docking and mold tightness between the outer mold 4 and the first mold core 6 and the second mold core 7, magnets are provided on the docking surfaces of the first mounting seat 61, the second mounting seat 71 and the outer mold 4 to assist in mold closing.

[0045] A first magnet 712 is provided on the top of the second mounting seat 71 , and a second magnet 9 is provided on the inner side surface of the upper mold base 1 at the top of the movable range of the second mounting seat 71 to position the second mold core clamping mechanism when the mold is opened.

[0046] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vacuum cleaner hose connector injection molding device, characterized in that: include: Upper die seat; A lower die base is connected under the upper die base through a lifting rod; The outer mold clamping mechanism comprises two semi-annular outer molds and an air pressure regulating seat for driving the outer mold to open and close, the outer mold is connected to an external plastic supply device through a hose, and the air pressure regulating seat is connected to an external air pressure regulating device; The first mold core clamping mechanism comprises a straight first mold core and a first mounting seat connected to the first mold core, wherein the first mounting seat is driven by a telescopic motor or a cylinder on the inner side of the lower mold base; The second mold core clamping mechanism includes an arc-shaped second mold core, a second mounting seat connected to the second mold core, and a swing arm driving the second mounting seat to rotate, and the swing arm is driven by a rotating motor on the inner side of the upper mold base.

2. The vacuum cleaner hose connector injection molding device according to claim 1, characterized in that: The outer mold is slidably connected to the air pressure regulating seat, a first slider is arranged at the bottom of the outer mold, the first slider penetrates into the sliding hole of the air pressure regulating seat and is slidably connected to the top of the cavity.

3. The vacuum cleaner hose connector injection molding device according to claim 2, characterized in that: The cavity is an O-type cavity, and a normal pressure cavity is formed at the top of the cavity between the two first sliders and connected to the outside through the sliding hole, and a C-type variable pressure cavity is formed outside the two first sliders and connected to the air pressure regulating device.

4. The vacuum cleaner hose connector injection molding device according to claim 1, characterized in that: The inner bottom surface of the lower die seat is provided with a guide rail for guiding the first mounting seat.

5. The vacuum cleaner hose connector injection molding device according to claim 1, characterized in that: A second sliding block is arranged on the side surface of the second mounting seat, and the second sliding block is slidably connected to the arc-shaped guide grooves on the inner side surfaces of the upper die seat and the lower die seat.

6. The vacuum cleaner hose connector injection molding device according to claim 1, characterized in that: Magnets for assisting mold closing are arranged on the butting surfaces of the first mounting seat, the second mounting seat and the outer mold.

7. The vacuum cleaner hose connector injection molding device according to claim 1, characterized in that: A first magnet is arranged on the top of the second mounting seat, and a second magnet is arranged on the inner side surface of the upper mold seat at the top of the movable range of the second mounting seat.

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