Injection molding machine with convenient adjustment and alignment

Abstract

The present application relates to injection molding machine field, disclose a kind of injection molding machine for adjusting and keeping alignment injection glue, including base, fixed mold plate and movable mold plate being arranged on base, for driving element used to promote movable mold plate to move, and with injection glue cylinder and injection glue cylinder can move to fixed mold plate extrusion module, the injection glue cylinder includes barrel, nozzle and movable mechanism, two ends of movable mechanism are connected with barrel and nozzle respectively, so that nozzle can move in the plane parallel with fixed mold plate and within the limited range defined by movable mechanism, nozzle is communicated with injection glue cylinder by movable mechanism.The present application is automatically aligned by setting movable mechanism when installing mold, while nozzle and barrel can be relatively moved within limited range, so during injection glue process, the components of injection molding machine and mold are slightly displaced due to vibration, nozzle and glue inlet will also be automatically adjusted, avoid relative misplacement movement stress to cause easy leakage, even nozzle and barrel deformation problem.

Description

TECHNICAL FIELD

[0001] The present application relates to injection molding machine, and more particularly to an injection molding machine which is convenient to adjust and keep aligned glue injection. BACKGROUND

[0002] The basic structure of the existing injection molding machine includes an extrusion module, a fixed mold plate, a movable mold plate and a driving assembly for driving the opening and closing of the movable mold plate and the fixed mold plate, wherein the fixed mold plate and the movable mold plate are used for mounting the fixed mold and the movable mold of the injection mold. When installing the mold, the nozzle of the extrusion module of the existing injection molding machine is fixedly oriented, and the position of the mold needs to be continuously adjusted during installation, so that the glue inlet on the mold is aligned with the nozzle. Thus, the installation and debugging can be more troublesome, time-consuming and laborious. In addition, after installation and debugging, in the process of use, the nozzle is pressed against the glue inlet, but the parts of the injection molding machine and the mold can be slightly displaced due to vibration, resulting in a relative misalignment between the nozzle and the glue inlet. With time, the nozzle and the barrel can be deformed due to the force. SUMMARY

[0003] In view of the above-mentioned deficiencies of the prior art, the present application provides an injection molding machine which is convenient to adjust and keep aligned glue injection.

[0004] The above technical purpose of the present application is achieved by the following technical scheme:

[0005] An injection molding machine which is convenient to adjust and keep aligned glue injection, comprising a base, a fixed mold plate and a movable mold plate arranged on the base, a driving member for pushing the movable mold plate to move, and an extrusion module with a glue injection cylinder which is movable to the fixed mold plate, wherein the glue injection cylinder comprises a cylinder body, a nozzle and a movable mechanism, two ends of the movable mechanism are connected with the cylinder body and the nozzle respectively, so that the nozzle is movable in a plane parallel to the fixed mold plate and within a limited range defined by the movable mechanism, and the nozzle is communicated with the glue injection cylinder through the movable mechanism.

[0006] Further, the movable mechanism comprises a funnel-shaped first glue outlet head, a gland and a resistance-reducing member, a flange is arranged around the large opening end of the first glue outlet head, the gland is threadedly connected with the glue outlet end of the cylinder body and presses the resistance-reducing member, so that the resistance-reducing member abuts against the flange of the first glue outlet head, thereby the top surface of the large opening end of the first glue outlet head is tightly attached to the plane parallel to the fixed mold plate on the glue outlet end of the cylinder body, a limiting opening for limiting the movement range of the first glue outlet head is formed in the gland, and the nozzle is fixedly connected to the small opening end of the first glue outlet head.

[0007] Further, a plurality of concave cavities are arranged around the plurality of limiting openings on the gland, and the resistance-reducing member comprises a plurality of balls which are the same in number as the concave cavities, and the plurality of balls are one-to-one correspondingly arranged in the concave cavities.

[0008] Further, the movable mechanism comprises a connecting block provided with a through flow channel and a funnel-shaped second glue outlet head, the connecting block is connected with the spherical surface of the glue outlet end of the barrel body and can rotate within a limited conical angle relative to the barrel body, the second glue outlet head is connected with the spherical surface of the connecting block and can rotate within a limited conical angle relative to the connecting block, and the nozzle is fixedly connected to the small opening end of the first glue outlet head.

[0009] Further, the movable mechanism comprises a limiting assembly, one end of the limiting assembly is movably connected with the glue outlet end of the barrel body and can move along the plane parallel to the fixed mold plate on the glue outlet end of the barrel body, and the other end of the limiting assembly is arranged at the small outlet end of the second glue outlet head, so that the axis of the second glue outlet head is kept parallel to the axis of the barrel body.

[0010] Further, the limiting assembly comprises a fixed cover and a limiting cover, the fixed cover is fixedly connected to the glue outlet end of the barrel body and covers the flange of one end of the limiting cover, so that the limiting cover can move along the plane parallel to the fixed mold plate on the glue outlet end of the barrel body, and the other end of the limiting cover is sleeved on the outer surface of the small outlet end of the second glue outlet head.

[0011] Further, the movable mechanism comprises a first mounting seat, a second mounting seat and a first threaded adjusting member, the base comprises four parallel arranged guide columns, the guide columns comprise threaded segments and smooth segments, the first mounting seat is slidingly connected to the smooth end of the guide columns, the driving member is fixedly connected to the base and the output end is connected with the first mounting seat, the movable mold plate is fixedly connected to the first mounting seat, the first threaded adjusting member is threadedly connected to the threaded segments of the guide columns, the second mounting seat is sleeved on the threaded segments of the guide columns and is arranged on the first threaded adjusting member, the fixed mold plate is fixedly connected to one side of the second mounting seat and is opposite to the movable mold plate, and the extrusion mold assembly is movably connected to the other side of the second mounting seat and can move perpendicularly to the second mounting seat.

[0012] Further, the extrusion mold assembly comprises an extrusion assembly, a threaded rod and a second threaded adjusting member, one end of the threaded rod is fixedly connected to the second mounting seat, the second threaded adjusting member is threadedly connected to the threaded rod, and the extrusion assembly is sleeved on the threaded rod and is arranged on the second threaded adjusting member.

[0013] In summary, the present invention has the following beneficial effects: When using the present invention, the fixed mold and the moving mold are respectively installed on the fixed template and the moving template, and the sprue on the fixed mold is initially aligned with the nozzle. After installation, the extrusion module is adjusted to move towards the fixed template so that the nozzle comes into contact with the sprue. If the alignment is not complete, the nozzle will be pushed by one side of the sprue during this process. Since there is a movable mechanism between the nozzle and the barrel, the nozzle will move to the opposite side and eventually align with the sprue. Through the movable mechanism, the nozzle and the barrel can move relative to each other within a limited range. Therefore, during the injection process, if the parts of the injection molding machine and the mold experience slight displacement due to vibration, the nozzle and the sprue will automatically adjust, avoiding the problem of leakage or even deformation of the nozzle and barrel caused by relative misalignment and force. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 This is a cross-sectional view and a partially enlarged structural schematic diagram of an extrusion module according to an embodiment of the present invention;

[0016] Figure 3 This is a partial cross-sectional view of the dispensing cylinder according to another embodiment of the present invention.

[0017] Reference numerals: 1. Base; 11. Guide post; 2. Fixed template; 21. Base; 22. Barrel; 23. Heating element; 24. Spiral blade; 25. Driving element; 26. Hopper; 3. Moving template; 4. Driving element; 5. Extrusion module; 51. Extrusion assembly; 511. Barrel body; 512. Nozzle; 52. Threaded rod; 53. Second threaded adjustment element; 6. First mounting seat; 61. Threaded hole; 7. Second mounting seat; 81. First dispensing head; 82. Pressure cap; 83. Drag reducing element; 84. Connecting block; 85. Second dispensing head; 86. Fixed cover; 87. Limiting cover. Detailed Implementation

[0018] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly or indirectly attached to that other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like, indicate directions or positions based on the directions or positions shown in the drawings, and are used only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0021] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified.

[0022] Referring to Figure 1 the injection molding machine, comprising a base 1, a fixed mold plate 2 and a movable mold plate 3 arranged on the base 1, a driving member 4 for pushing the movable mold plate 3 to move, and an extrusion module 5. It also includes a first mounting seat 6, a second mounting seat 7 and a first threaded adjusting member. The base 1 includes four parallel arranged guide columns 11, the guide columns 11 include threaded sections and smooth sections, the first mounting seat 6 is slidingly connected to the smooth end of the guide column 11, the driving member 4 is fixedly connected to the base 1 and the output end is connected to the first mounting seat 6, the movable mold plate 3 is fixedly connected to the first mounting seat 6, the first threaded adjusting member is threadedly connected to the threaded section of the guide column 11, the second mounting seat 7 is sleeved on the threaded section of the guide column 11 and is placed on the first threaded adjusting member, the fixed mold plate 2 is fixedly connected to one side of the second mounting seat 7 and is opposite to the movable mold plate 3, and the extrusion module 5 is movably connected to the other side of the second mounting seat 7. By adjusting the first threaded adjusting member, the second mounting seat 7 and the extrusion module 5 and the fixed mold plate 2 thereon can be moved as a whole along the guide column 11, so as to be adjusted to the appropriate position according to the height of the specific mold.

[0023] In addition, as Figure 1 shown, the extrusion module 5 includes an extrusion assembly 51, a threaded rod 52, and a second threaded adjusting member 53. One end of the threaded rod 52 is fixedly connected to the second mounting seat 7, the second threaded adjusting member 53 is threadedly connected to the threaded rod 52, and the extrusion assembly 51 is sleeved on the threaded rod 52 and placed on the second threaded adjusting member 53. By adjusting the second threaded adjusting member 53, the extrusion assembly 51 can be moved as a whole along the threaded rod 52, so as to adjust the glue injection cylinder on the extrusion assembly 51 to approach or move away from the fixed mold on the fixed mold plate 2, so that the nozzle 512 of the glue injection cylinder is kept in contact or disconnected with the glue inlet of the fixed mold. Manual threaded adjustment is adopted, which makes the adjustment more stable.

[0024] The existing injection molding machine's injection barrel structure generally includes a barrel body 511 and a nozzle 512, with the nozzle 512 rigidly connected to the barrel body 511. This requires constant adjustment of the mold's position during mold installation to align the injection port with the nozzle 512, which is cumbersome. Furthermore, during use, the injection molding machine's components and the mold may experience slight displacement due to vibration, causing a tendency for relative misalignment between the nozzle 512 and the injection port, leading to stress over time and potential problems such as leakage or even deformation of the nozzle 512 and barrel body 511. To address this, a movable mechanism is installed between the barrel body 511 and the nozzle 512. The two ends of the movable mechanism are connected to the barrel body 511 and the nozzle 512 respectively, allowing the nozzle 512 to move within a limited range defined by the movable mechanism in a plane parallel to the fixed mold plate 2. The nozzle 512 communicates with the injection barrel through the movable mechanism. In use, the fixed mold and moving mold are installed on the fixed platen 2 and moving platen 3 respectively, and the sprue on the fixed mold is initially aligned with the nozzle 512. The nozzle 512 is then smoothly adjusted using the second threaded adjustment component 53 until it contacts the sprue of the fixed mold. During further adjustment, the nozzle 512, limited by the sprue of the fixed mold, will move to the opposite side until it is finally aligned with the sprue. By setting up the movable mechanism, only initial alignment of the sprue and nozzle 512 is required, eliminating the need for continuous mold position adjustments as in existing technologies, making overall adjustment faster and more convenient. Furthermore, during use, due to the presence of the movable mechanism, any slight displacement of the injection molding machine components and mold caused by vibration will be automatically adjusted between the nozzle 512 and the sprue, preventing leakage or even deformation of the nozzle 512 and barrel 511 caused by relative misalignment.

[0025] In one embodiment, such as Figure 2 As shown, the movable mechanism includes a funnel-shaped first dispensing head 81, a pressure cap 82, and a drag-reducing component 83. A flange is provided around the large opening end of the first dispensing head 81. The pressure cap 82 is threadedly connected to the dispensing end of the cylinder body 511 and presses against the drag-reducing component 83, causing the drag-reducing component 83 to abut against the flange of the first dispensing head 81. This ensures that the top surface of the large opening end of the first dispensing head 81 is flush against a plane parallel to the fixed template 2 on the dispensing end of the cylinder body 511. The pressure cap 82 has a limiting opening to restrict the movement range of the first dispensing head 81. The nozzle 512 is fixedly connected to the small opening end of the first dispensing head 81. The nozzle 512 communicates with the flow channel inside the cylinder body 511 through the funnel-shaped flow channel inside the first dispensing head 81. When the nozzle 512 is subjected to a lateral force, it will push the entire first dispensing head 81 to the opposite side, preventing the force from persisting and damaging the nozzle 512 or other components. When the nozzle 512 presses against the mold's inlet, the top surface of the large opening end of the first discharge head 81 fits more tightly against the flat surface of the discharge end of the barrel 511, thus better preventing glue leakage.

[0026] The drag reduction member 83 of the above embodiment adopts a plurality of said balls to reduce drag by rolling friction. Specifically, a plurality of concave cavities are arranged uniformly around the plurality of limiting openings on the gland 82, and the balls are arranged one-to-one in the concave cavities. Of course, a high-temperature-resistant rubber block can also be adopted. When the nozzle 512 is pressed against the glue inlet of the mold and receives a lateral force, the first glue outlet head 81 moves to the opposite side, causing the rubber block to deform. When the nozzle 512 is disconnected from the glue inlet, the rubber block will rebound to its original shape, driving the first glue outlet head 81 to fully or partially reset. The rubber block is arranged to reduce drag by elastic deformation instead of friction, making the first glue outlet head 81 easy to move.

[0027] In an embodiment, as shown in Figure 3 The movable mechanism includes a connecting block 84 provided with a through flow channel and a funnel-shaped second glue outlet head 85. The connecting block 84 is spherically connected with the glue outlet end of the barrel body 511 and can rotate within a limited conical angle relative to the barrel body 511. The second glue outlet head 85 is spherically connected with the connecting block 84 and can rotate within a limited conical angle relative to the connecting block 84. The nozzle 512 is fixedly connected to the small opening end of the first glue outlet head 81. Through double spherical connection, the second glue outlet head 85 can swing within a limited space, so that the nozzle 512 can automatically deviate when receiving a lateral force, and finally align with the glue inlet. Similarly, when the nozzle 512 is pressed against the glue inlet of the mold, both spherical connections are tightly fitted, and the seal is better.

[0028] In the above embodiment, the movable mechanism includes a limiting assembly. One end of the limiting assembly is movably connected with the glue outlet end of the barrel body 511 and can move along the plane parallel to the fixed mold plate 2 on the glue outlet end of the barrel body 511. The other end of the limiting assembly is arranged at the small outlet end of the second glue outlet head 85. The limiting assembly includes a fixed cover 86 and a limiting cover 87. The fixed cover 86 is fixedly connected to the glue outlet end of the barrel body 511 to cover the flange of one end of the limiting cover 87, so that the limiting cover 87 can move along the plane parallel to the fixed mold plate 2 on the glue outlet end of the barrel body 511. The other end of the limiting cover 87 is sleeved or fixedly connected to the outer surface at the small outlet end of the second glue outlet head 85. The limiting cover 87 is arranged so that it can only move along the plane parallel to the fixed mold plate 2 on the glue outlet end of the barrel body 511. When the other end of the limiting cover 87 is sleeved on the second glue outlet head 85, the axis of the second glue outlet head 85 can be kept parallel to the axis of the barrel body 511, so that the nozzle 512 can better fit the glue inlet.

[0029] The above embodiment is only an explanation of the present application, which is not a limitation of the present application. Those skilled in the art can make modifications to the present embodiment without creative contribution as long as they are within the scope of the claims of the present application.

Claims

1. An injection molding machine for easy adjustment and maintaining aligned injection, comprising a base, a fixed mold plate and a movable mold plate disposed on the base, a drive component for moving the movable mold plate, and an extrusion die with an injection cylinder movable toward the fixed mold plate, characterized in that: The glue injection cylinder comprises a cylinder body, a nozzle and a movable mechanism, two ends of the movable mechanism are connected with the cylinder body and the nozzle respectively, so that the nozzle can move in a plane parallel to the fixed mold plate and within a limited range defined by the movable mechanism, and the axis of the nozzle always keeps parallel to the axis of the cylinder body within the limited range, the nozzle is communicated with the glue injection cylinder through the movable mechanism; the movable mechanism comprises a connecting block provided with a through flow channel and a funnel-shaped second glue outlet, the connecting block is connected with the glue outlet end of the cylinder body in a spherical manner and can rotate within a limited conical angle relative to the cylinder body, the second glue outlet is connected with the connecting block in a spherical manner and can rotate within a limited conical angle relative to the connecting block, the nozzle is fixedly connected to the small opening end of the first glue outlet, the movable mechanism comprises a limiting assembly, one end of the limiting assembly is movably connected with the glue outlet end of the cylinder body and can move along the plane parallel to the fixed mold plate on the glue outlet end of the cylinder body, the other end of the limiting assembly is arranged at the small outlet end of the second glue outlet, so that the axis of the second glue outlet keeps parallel to the axis of the cylinder body, the limiting assembly comprises a fixed cover and a limiting cover, the fixed cover is fixedly connected to the glue outlet end of the cylinder body and covers the flange of one end of the limiting cover, so that the limiting cover can move along the plane parallel to the fixed mold plate on the glue outlet end of the cylinder body, the other end of the limiting cover is sleeved on the outer surface of the small outlet end of the second glue outlet.

2. The injection molding machine of claim 1, wherein: The base comprises four parallel arranged guide columns, the guide columns comprise threaded segments and smooth segments, the first mounting seat is slidingly connected to the smooth end of the guide column, the driving member is fixedly connected to the base and the output end is connected with the first mounting seat, the movable mold plate is fixedly connected to the first mounting seat, the first threaded adjusting member is threadedly connected to the threaded segment of the guide column, the second mounting seat is sleeved on the threaded segment of the guide column and is arranged on the first threaded adjusting member, the fixed mold plate is fixedly connected to one side of the second mounting seat and is opposite to the movable mold plate, the extrusion mold group can be moved perpendicularly to the other side of the second mounting seat.

3. The injection molding machine of claim 2, wherein: The extrusion mold group comprises an extrusion assembly, a threaded rod and a second threaded adjusting member, one end of the threaded rod is fixedly connected to the second mounting seat, the second threaded adjusting member is threadedly connected to the threaded rod, and the extrusion assembly is sleeved on the threaded rod and arranged on the second threaded adjusting member.

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