A feeding mechanism for an injection molding machine for plastic articles

Abstract

The utility model provides a kind of feeding mechanism of injection molding machine for plastic product belongs to injection molding machine technical field, the device includes icon mark list stirring bucket, hopper, cover plate mechanism, feed pipe, air exchange mechanism and filter sleeve, through air exchange mechanism, dust screen and filter sleeve can ensure that the air entering device is clean and dry, prevent dust in air from polluting raw materials, the cross-sectional area of limit slide strip gradually increases from one end close to dust screen to one end close to mesh bag, filter sleeve can be clamped in air exchange sleeve by limit sliding slot, so as to facilitate the installation and disassembly of filter sleeve in air exchange sleeve, facilitate the replacement of filter sleeve, reduce the maintenance burden of device, by clamping connection between dust screen and air exchange sleeve, so as to facilitate the disassembly cleaning of dust screen, facilitate the replacement maintenance of filter sleeve in air exchange sleeve.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, and in particular to a feeding mechanism for an injection molding machine for plastic products. Background Technology

[0002] Injection molding machines are machines that heat and melt thermoplastic or solid plastics and inject them into specific shapes. Injection molding machines are very common in the production of plastic products. Existing injection molding machines mainly include a feeding structure, a heating structure, a pushing structure, and a molding structure. Thermoplastic or solid plastics enter the injection molding machine through the feeding structure and are then pushed into the molding structure by the pushing structure. At the same time, the heating structure heats the thermoplastic or solid plastics into a liquid state, and the pushing structure pushes the liquid plastic into the molding structure, causing the liquid plastic to flow into a specific shape. Then the liquid plastic cools and solidifies, completing the production process.

[0003] Chinese Patent CN222712682U discloses a feeding mechanism for an injection molding machine and an injection molding machine. The injection molding machine body has a feeding mechanism installed at the inlet of the injection molding machine body, including a funnel, a storage tank rotatably connected above the funnel, and a support frame located outside the funnel and the storage tank. The funnel is connected to the inlet of the injection molding machine, and the storage tank is connected to the funnel. Multiple stirring plates are arranged inside the storage tank. A motor that drives the storage tank to rotate is arranged on the support frame and is connected to the storage tank. This achieves the effect of preventing the raw material of the injection molding machine from clogging the inlet of the injection molding machine. A filter screen for filtering dust is arranged in the vent, and an activated carbon layer for absorbing water vapor is attached to the filter screen.

[0004] The shortcomings of the above-mentioned existing technical solutions are: the activated carbon layer is attached to the filter screen, making it inconvenient to clean the dust on the filter screen during use, and also inconvenient to replace the activated carbon layer. The maintenance process is relatively cumbersome and inconvenient to use. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a feeding mechanism for an injection molding machine for plastic products, thereby resolving the problems existing in the prior art.

[0006] According to a first aspect of the present invention, a feeding mechanism for an injection molding machine for plastic products is provided, comprising:

[0007] A mixing tank is provided with a feeding hopper at the lower end and a cover plate mechanism at the upper end. The cover plate mechanism includes a cover plate body, a feeding pipe is embedded and fixedly connected through the cover plate body, and a ventilation groove is opened through the cover plate body.

[0008] The ventilation mechanism includes a ventilation sleeve fitted inside a ventilation channel. A limiting slide is fixedly connected to the inner wall of the ventilation sleeve, and the limiting slide is arranged along the axial direction of the ventilation sleeve. A filter sleeve filled with activated carbon is installed inside the ventilation sleeve. A limiting groove is opened on the side end face of the filter sleeve, and the limiting slide is fitted inside the limiting groove. A mesh bag is installed at the opening of the ventilation sleeve inside the mixing tank. The mesh bag is a bowl-shaped protective net. A dustproof net is snapped into the opening of the ventilation sleeve outside the mixing tank. The cross-sectional area of ​​the limiting slide gradually increases from the end near the dustproof net to the end near the mesh bag.

[0009] As a further embodiment of this utility model: the ventilation sleeve opening is symmetrically provided with fixing holes.

[0010] As a further embodiment of this utility model: a snap-fit ​​post corresponding to the fixing hole is fixedly connected to the frame of the dustproof net, and the snap-fit ​​post is snapped into the fixing hole.

[0011] As a further embodiment of this utility model: an installation groove is provided at the opening of the ventilation channel, and the installation groove is distributed around the edge of the opening of the ventilation channel.

[0012] As a further embodiment of this utility model: the bottom surface of the mounting groove is provided with a number of connecting holes, which are symmetrically arranged around the ventilation groove.

[0013] As a further embodiment of this utility model: an installation ring is fitted and fixedly connected to the outer side of the ventilation sleeve, and an installation through hole corresponding to a plurality of connection holes is opened through the installation ring. A connecting screw is provided on the installation ring, and the connecting screw passes through the installation through hole and is threadedly connected to the connection hole.

[0014] As a further embodiment of this utility model: a sealing ring is fixedly connected to the end face of the mounting ring near the mounting groove.

[0015] The beneficial effects of this utility model are:

[0016] This invention ensures that the air entering the device is clean and dry through a ventilation mechanism, dustproof net, and filter sleeve, preventing dust in the air from contaminating the raw materials. The ventilation mechanism ensures that the internal air pressure of the device is balanced with the external air pressure, making the material conveying process smoother. The cross-sectional area of ​​the limiting slide bar gradually increases from the end near the dustproof net to the end near the net bag, so that the cross-sectional area of ​​the limiting slide bar end near the dustproof net is slightly smaller than the cross-sectional area of ​​the limiting slide groove, and the cross-sectional area of ​​the limiting slide bar end near the net bag is slightly larger than the cross-sectional area of ​​the limiting slide groove, allowing the filter sleeve to pass through the limiting slide bar. The slot is inserted into the ventilation sleeve, facilitating the installation and removal of the filter sleeve and its replacement, thus reducing the maintenance burden of the device. A snap-fit ​​connection between the dustproof net and the ventilation sleeve allows for easy disassembly and cleaning of the dustproof net, and facilitates the replacement and maintenance of the filter sleeve within the ventilation sleeve. The ventilation mechanism and the cover plate mechanism are fixedly installed via connecting screws, facilitating the disassembly and assembly of the ventilation mechanism and the cleaning of the mesh bag on the ventilation mechanism. The bowl-shaped protective mesh bag prevents softened materials from sticking to the mesh bag, ensuring the ventilation effect of the ventilation mechanism. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the feeding mechanism of an injection molding machine for plastic products according to the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram showing the connection relationship between the cover plate mechanism and the feed pipe of the feeding mechanism of an injection molding machine for plastic products according to the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram illustrating the connection relationship between the air exchange mechanism and the filter sleeve of the feeding mechanism of an injection molding machine for plastic products, according to the present invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the ventilation mechanism of the feeding mechanism of an injection molding machine for plastic products according to the present invention. Figure 1 ;

[0021] Figure 5 This is a three-dimensional structural diagram of the ventilation mechanism of the feeding mechanism of an injection molding machine for plastic products according to the present invention. Figure 2 ;

[0022] Figure 6 This is a three-dimensional structural diagram of the filter sleeve of the feeding mechanism of an injection molding machine for plastic products according to the present invention.

[0023] List of reference numerals in the attached diagram:

[0024] 1. Mixing tank; 2. Feed hopper; 3. Cover plate mechanism; 31. Cover plate body; 32. Ventilation groove; 33. Mounting groove; 34. Connecting hole; 4. Feed pipe; 5. Ventilation mechanism; 51. Mounting ring; 52. Mounting through hole; 53. Ventilation sleeve; 54. Fixing hole; 55. Limiting slide bar; 56. Sealing ring; 57. Mesh bag; 6. Dustproof net; 7. Filter sleeve; 8. Limiting slide bar. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0026] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Reference Figures 1 to 6This utility model provides a feeding mechanism for an injection molding machine for plastic products, including a mixing tank 1 and a ventilation mechanism 5. A hopper 2 is provided at the lower end of the mixing tank 1, and a cover plate mechanism 3 is provided at the upper end of the mixing tank 1. The cover plate mechanism 3 includes a cover plate body 31, on which a feeding pipe 4 is embedded and fixedly connected. A ventilation groove 32 is provided through the cover plate body 31. The ventilation mechanism 5 includes a ventilation sleeve 53, which is fitted inside the ventilation groove 32. A limiting slide 55 is fixedly connected to the inner wall of the ventilation sleeve 53, and the limiting slide 55 is arranged along the axial direction of the ventilation sleeve 53. A filter sleeve 7 is provided inside the ventilation sleeve 53, and the filter sleeve 7 is filled with activated carbon. A limiting groove 8 is provided on the side end face of the filter sleeve 7, and the limiting slide 55 is fitted inside the limiting groove 8. Inside the chute 8, a mesh bag 57 is installed at one end of the ventilation sleeve 53 located inside the mixing tank 1. The mesh bag 57 is a bowl-shaped protective net. A dustproof net 6 is snapped into the other end of the ventilation sleeve 53 located outside the mixing tank 1. The cross-sectional area of ​​the limiting slide bar 55 gradually increases from the end near the dustproof net 6 to the end near the mesh bag 57, so that the cross-sectional area of ​​the end of the limiting slide bar 55 near the dustproof net 6 is slightly smaller than the cross-sectional area of ​​the limiting chute 8, and the cross-sectional area of ​​the end of the limiting slide bar 55 near the mesh bag 57 is slightly larger than the cross-sectional area of ​​the limiting chute 8. This allows the filter sleeve 7 to be snapped into the ventilation sleeve 53 through the limiting chute 8, thereby facilitating the installation and removal of the filter sleeve 7 within the ventilation sleeve 53, making it easier to replace the filter sleeve 7, and reducing the maintenance burden of the device.

[0029] The ventilation sleeve 53 has symmetrically arranged and fixed holes 54 at the opening edge. The dust screen 6 has a snap-fit ​​post corresponding to the fixed hole 54 fixedly connected to the frame. The snap-fit ​​post is snapped into the fixed hole 54. The dust screen 6 is snapped into the ventilation sleeve 53, which facilitates the disassembly and cleaning of the dust screen 6 and the replacement and maintenance of the filter sleeve 7 inside the ventilation sleeve 53.

[0030] An installation groove 33 is provided at the opening of the ventilation channel 32. The installation groove 33 is distributed around the opening edge of the ventilation channel 32. Several connecting holes 34 are provided on the bottom surface of the installation groove 33. The connecting holes 34 are symmetrically arranged with the ventilation channel 32 as the center. An installation ring 51 is fitted and fixedly connected to the outside of the ventilation sleeve 53. The installation ring 51 has a through hole 52 that corresponds to one of the connecting holes 34. A connecting screw is provided on the installation ring 51. The connecting screw passes through the through hole 52 and is threadedly connected to the connecting hole 34. The ventilation mechanism 5 and the cover plate mechanism 3 are fixedly installed by the connecting screw, which facilitates the disassembly and assembly of the ventilation mechanism 5, thereby facilitating the cleaning of the mesh bag 57 on the ventilation mechanism 5.

[0031] In some specific embodiments, a sealing ring 56 is fixedly connected to the end face of the mounting ring 51 near the mounting groove 33 to ensure the sealing of the connection between the cover plate mechanism 3 and the ventilation mechanism 5, and to ensure the air filtration effect.

[0032] Workflow:

[0033] The feed pipe will be connected to the feed pipe 4. The raw material will be conveyed through the mixing tank 1 and then through the discharge hopper 2. The mixing tank 1 can prevent blockage during the material conveying process. The ventilation mechanism 5, dustproof net 6, and filter sleeve 7 can ensure that the air entering the device is clean and dry, preventing dust in the air from contaminating the raw material. The ventilation mechanism 5 can ensure that the internal air pressure of the device is balanced with the external air pressure, making the material conveying process smoother. The cross-sectional area of ​​the limiting slide bar 55 gradually increases from the end near the dustproof net 6 to the end near the net bag 57, so that the cross-sectional area of ​​the end of the limiting slide bar 55 near the dustproof net 6 is slightly smaller than the cross-sectional area of ​​the limiting slide groove 8, and the cross-sectional area of ​​the end of the limiting slide bar 55 near the net bag 57 is slightly larger than the limiting slide groove 8. The cross-sectional area of ​​the groove 8 allows the filter sleeve 7 to be secured within the ventilation sleeve 53 via the limiting slide groove 8, facilitating the installation and removal of the filter sleeve 7 within the ventilation sleeve 53 and reducing the maintenance burden of the device. The dustproof net 6 is connected to the ventilation sleeve 53 via a snap-fit ​​connection, facilitating the disassembly and cleaning of the dustproof net 6 and the replacement and maintenance of the filter sleeve 7 within the ventilation sleeve 53. The ventilation mechanism 5 and the cover plate mechanism 3 are fixedly installed via connecting screws, facilitating the disassembly and assembly of the ventilation mechanism 5 and the cleaning of the mesh bag 57 on the ventilation mechanism 5. The mesh bag 57 is a bowl-shaped protective net that prevents softened materials from adhering to the mesh bag 57, ensuring the ventilation effect of the ventilation mechanism 5.

[0034] It should be noted that not all steps and modules in the above processes and system structure diagrams are mandatory; some steps or modules can be omitted as needed. The execution order of each step is not fixed and can be adjusted as required. The system structure described in the above embodiments can be a physical structure or a logical structure. That is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities, or they may be jointly implemented by certain components in multiple independent devices.

[0035] In the above embodiments, the hardware modules can be implemented mechanically or electrically. The present invention has been described and illustrated in detail above with reference to the accompanying drawings and preferred embodiments. However, the present invention is not limited to these disclosed embodiments. Based on the above embodiments, those skilled in the art will understand that more embodiments of the present invention can be obtained by combining the code review methods in the different embodiments described above, and these embodiments are also within the protection scope of the present invention.

Claims

1. A feeding mechanism for an injection molding machine for plastic products, characterized in that, include: A mixing tank (1) is provided with a feeding hopper (2) at the lower end of the mixing tank (1) and a cover plate mechanism (3) at the upper end of the mixing tank (1). The cover plate mechanism (3) includes a cover plate body (31), a feed pipe (4) is embedded and fixedly connected through the cover plate body (31), and a ventilation slot (32) is opened through the cover plate body (31). The ventilation mechanism (5) includes a ventilation sleeve (53), which is fitted inside the ventilation channel (32). A limiting slide (55) is fixedly connected to the inner wall of the ventilation sleeve (53), and the limiting slide (55) is arranged along the axial direction of the ventilation sleeve (53). A filter sleeve (7) is provided inside the ventilation sleeve (53), and the filter sleeve (7) is filled with activated carbon. A limiting groove is opened on the side end face of the filter sleeve (7). (8) The limiting slide bar (55) is fitted inside the limiting slide groove (8). The ventilation sleeve (53) is set with a net bag (57) at one end of the opening inside the mixing tank (1). The net bag (57) is a bowl-shaped protective net. The ventilation sleeve (53) is set with a dustproof net (6) at one end of the opening outside the mixing tank (1). The cross-sectional area of ​​the limiting slide bar (55) gradually increases from the end near the dustproof net (6) to the end near the net bag (57).

2. The feeding mechanism of an injection molding machine for plastic products according to claim 1, characterized in that, The ventilation sleeve (53) is symmetrically arranged at the opening edge and has fixing holes (54).

3. The feeding mechanism of an injection molding machine for plastic products according to claim 2, characterized in that, The dustproof net (6) has a snap-fit ​​post that corresponds to the fixing hole (54) fixedly connected to the frame. The snap-fit ​​post is snapped into the fixing hole (54).

4. The feeding mechanism of an injection molding machine for plastic products according to claim 1, characterized in that, An installation groove (33) is provided at the opening of the ventilation channel (32), and the installation groove (33) is distributed around the opening edge of the ventilation channel (32).

5. The feeding mechanism of an injection molding machine for plastic products according to claim 4, characterized in that, The mounting slot (33) has several connecting holes (34) on its bottom surface, and the connecting holes (34) are symmetrically arranged with the ventilation slot (32) as the center.

6. The feeding mechanism of an injection molding machine for plastic products according to claim 5, characterized in that, An installation ring (51) is fitted and fixedly connected to the outside of the ventilation sleeve (53). The installation ring (51) has through holes (52) that correspond one-to-one with several connection holes (34). A connecting screw is provided on the installation ring (51). The connecting screw passes through the installation through hole (52) and is threaded to the connection hole (34).

7. The feeding mechanism of an injection molding machine for plastic products according to claim 1, characterized in that, A sealing ring (56) is fixedly connected to the end face of the mounting ring (51) near the mounting groove (33).

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