Discharging structure of injection molding machine

Abstract

The utility model discloses a blanking structure of an injection molding machine, which comprises a blanking box and a feeding structure transversely arranged at the bottom of the blanking box, a feeding pipe is inserted in the middle in the blanking box, the upper end of the feeding pipe is communicated with a feeding hopper which extends to the outer side of the blanking box and is used for feeding, and a scattering component is arranged in the feeding hopper. Clustered plastic particles are preliminarily scattered during feeding, discharging blockage is avoided, the lower end of a feeding pipe penetrates through the bottom of a discharging box and communicates with a feeding structure, the scattered plastic particles are discharged into the feeding structure and conveyed to an injection molding machine for injection molding work, and meanwhile a drying structure is arranged at the position, corresponding to the feeding pipe, in the discharging box. And in the plastic particle scattering process, water on the surfaces of the plastic particles is evaporated, the scattering efficiency is improved, secondary caking is avoided, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of blanking of injection molding machines, in particular to a blanking structure of an injection molding machine. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal and all-electric types.

[0003] Utility model patent CN218748999U discloses an automatic blanking structure for an injection molding machine, comprising: a blanking structure body, wherein the upper end of the blanking structure body is fixedly provided with a feed port, and the lower end of the blanking structure body is fixedly provided with a discharge port; a material shifting mechanism, wherein the material shifting mechanism is arranged at the upper end of the inner side of the blanking structure body; and a material screening plate, wherein the material screening plate is fixedly arranged at the inner side of the blanking structure body.

[0004] The utility model uses the upper extrusion block on the surface of the material guide funnel and the lower extrusion block on the surface of the mounting block to gradually rub the agglomerated material into the original small particles and then discharge them, thereby avoiding the problem of plastic particles agglomerating due to moisture; however, due to the agglomeration of plastic particles, the arrangement of the upper extrusion block on the surface of the material guide funnel and the lower extrusion block on the surface of the mounting block can easily cause material discharge blockage during the discharge process. Utility Model Content

[0005] In view of the above technical problems in the prior art, the present utility model provides a blanking structure of an injection molding machine, the purpose of which is to solve the above problems.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A material discharge structure of an injection molding machine includes a material discharge box and a feeding structure horizontally arranged at the bottom of the material discharge box. A feeding pipe is inserted into the middle of the material discharge box. The upper end of the feeding pipe is connected to a feeding hopper extending to the outside of the material discharge box. A breaking component is provided in the feeding hopper. The lower end of the feeding pipe passes through the bottom of the material discharge box and is connected to the feeding structure. A drying structure is provided in the material discharge box corresponding to the feeding pipe.

[0008] Preferably, the feeding structure includes a feeding chamber horizontally arranged at the bottom of the discharge box, the left end of the upper side of the feeding chamber is connected to the feed pipe, and the right end of the lower side of the feeding chamber is provided with a discharge port, and an auger is horizontally arranged in the feeding chamber, and the left and right ends of the auger are rotatably inserted in the left and right sides of the feeding chamber, and a driving motor is provided at the right side of the feeding chamber corresponding to the auger rotation connection, and the driving end of the driving motor is connected to the auger drive.

[0009] Preferably, the breaking up component includes a support frame arranged horizontally in the feed hopper, a rotating motor is fixedly provided in the middle of the lower side of the support frame, the driving end of the lower end of the rotating motor is vertically driven and connected to a rotating rod, and a plurality of breaking up blades are annularly provided on the surface of the rotating rod.

[0010] Preferably, the support frame includes a ring located in the middle and fixedly connected to the rotating motor, and the outer annular array of the ring is provided with six connecting rods, one end of the six connecting rods is fixedly connected to the outer wall of the ring, and the other end is fixed to the inner wall of the feed hopper.

[0011] Preferably, the plurality of scattering blades are evenly arranged in an annular array from top to bottom on the surface of the rotating rod, and the distribution shape of the plurality of scattering blades is consistent with the shape of the inner wall of the feed hopper.

[0012] Preferably, the drying structure includes a heating block arranged on the inner wall of the material box, and air holes for communicating the inside and outside of the material box are respectively opened on the left and right side walls.

[0013] Preferably, the top of the discharge box is provided with openings on the left and right sides of the feed hopper, and a cover plate is hinged at the opening, and a handle for opening the cover plate is provided on the upper side of the cover plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The utility model provides a feeding structure of an injection molding machine, in which a heating block in a feeding box is heated and the heat is transferred to a feed hopper and a feed pipe, thereby assisting in drying the surface of the plastic particles. At the same time, a breaking-up structure is provided in the feed hopper, thereby assisting in breaking up the plastic particles entering from the feed port, thereby avoiding agglomeration of the plastic particles and blocking the feeding, so that the plastic particles can be fed smoothly into the feeding cavity, and the plastic particles can be transported to the injection molding machine for injection molding by the rotation of the auger. At the same time, the auger can further break up the plastic particles during the transportation process, assist in mixing the plastic particles, and ensure the quality of the injection molded products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front overall schematic diagram of the blanking structure of the injection molding machine described in the utility model;

[0017] Figure 2 This is a top view schematic diagram of the connection between the support frame and the feed hopper of the blanking structure of the injection molding machine described in the utility model.

[0018] In the figure: 1. Feed box; 2. Feeding structure; 21. Feeding chamber; 22. Discharge port; 23. Auger; 24. Drive motor; 3. Feed pipe; 4. Feed hopper; 5. Breakup assembly; 51. Support frame; 511. Ring; 512. Connecting rod; 52. Rotating motor; 53. Rotating rod; 54. Breakup blades; 6. Drying structure; 61. Heating block; 62. Air vent; 63. Opening; 64. Cover; 65. Handle. DETAILED DESCRIPTION

[0019] The following will be combined with the 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.

[0020] See also Figure 1-2 The embodiment proposed in this application is: a feeding structure of an injection molding machine, including a feeding box 1 and a feeding structure 2 horizontally arranged at the bottom of the feeding box 1, a feeding pipe 3 is inserted in the middle of the feeding box 1, and the upper end of the feeding pipe 3 is connected to a feeding hopper 4 for feeding that extends to the outside of the feeding box 1, and a breaking component 5 is provided in the feeding hopper 4, which performs preliminary breaking up of the agglomerated plastic particles during feeding to avoid blockage of the feeding, and the lower end of the feeding pipe 3 passes through the bottom of the feeding box 1 and is connected to the feeding structure 2, discharges the broken up plastic particles into the feeding structure 2, and transports them to the injection molding machine for injection molding. At the same time, a drying structure 6 is provided in the feeding box 1 corresponding to the feeding pipe 3. In the process of breaking up the plastic particles, the moisture on the surface of the plastic particles is evaporated, thereby improving the breaking efficiency and avoiding re-agglomeration, which is highly practical.

[0021] In another embodiment, see Figure 1-2 The feeding structure 2 includes a feeding chamber 21 horizontally arranged at the bottom of the discharge box 1, the left end of the upper side of the feeding chamber 21 is connected to the feeding pipe 3, and a discharge port 22 is provided at the right end of the lower side of the feeding chamber 21. A screw dragon 23 is horizontally arranged in the feeding chamber 21, and the left and right ends of the screw dragon 23 are rotatably inserted in the left and right sides of the feeding chamber 21. A driving motor 24 for driving the screw dragon to rotate is provided at the rotation connection of the screw dragon 23 on the right side of the feeding chamber 21. The driving end of the driving motor 24 is connected to the screw dragon 23, thereby driving the screw dragon 23 to rotate and transport the broken plastic particles to the discharge port 22 to enter the injection molding machine for injection molding. At the same time, the screw dragon 23 can break up the plastic particles again and fully mix them when rotating and transporting, thereby ensuring the quality of the injection molded products.

[0022] In another embodiment, see Figure 1-2The scattering component 5 includes a support frame 51 arranged horizontally in the feed hopper 4, and a rotating motor 52 is fixedly provided in the middle of the lower side of the support frame 51. The driving end of the lower end of the rotating motor 52 is vertically driven and connected to a rotating rod 53. A plurality of scattering blades 54 are arranged in a ring on the surface of the rotating rod 53. By starting the rotating motor 52, the rotation of the rotating rod 53 is driven to cause the scattering blades 54 to scatter the plastic particles. At the same time, the plurality of scattering blades 54 are evenly arranged in a ring array from top to bottom on the surface of the rotating rod 53, and the distribution shape of the plurality of scattering blades 54 is consistent with the shape of the inner wall of the feed hopper 4, so that the scope of the scattering blades is more comprehensive, thereby improving the scattering effect.

[0023] In this embodiment, the support frame 51 includes a ring 511 located in the middle and fixedly connected to the rotating motor 52. The outer annular array of the ring 511 is provided with six connecting rods 512. One end of the six connecting rods 512 is fixedly connected to the outer wall of the ring 511, and the other end is fixed to the inner wall of the feed hopper 4, so that the support frame 51 will not block the discharge of plastic particles.

[0024] In another embodiment, see Figure 1-2 The drying structure 6 includes a heating block 61 located on the inner side wall of the blanking box 1. The heating block 61 here can be an electric heating wire, an electric heating tube, or an electromagnetic heater. The left and right side walls of the blanking box 1 are respectively provided with air vents 62 that connect the inside and outside of the blanking chamber to prevent gas expansion in the blanking box 1. The top of the blanking box 1 is provided with openings 63 on the left and right sides of the feed hopper 4, and the openings 63 are hinged with cover plates 64. The upper side of the cover plate 64 is provided with a handle 65 that can be opened to facilitate replacement or maintenance of the heating block 61 in the blanking box 1.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0026] In the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "upper", "lower", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and 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, and therefore cannot be understood as a limitation to the present invention.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blanking structure for an injection molding machine, characterized in that: The utility model comprises a material discharge box (1) and a feeding structure (2) arranged transversely at the bottom of the material discharge box (1); a feeding pipe (3) is inserted into the middle of the material discharge box (1); the upper end of the feeding pipe (3) is connected to a feeding hopper (4) extending to the outside of the material discharge box (1); a breaking component (5) is arranged in the feeding hopper (4); the lower end of the feeding pipe (3) passes through the bottom of the material discharge box (1) and is connected to the feeding structure (2); a drying structure (6) is provided in the material discharge box (1) at a position corresponding to the feeding pipe (3).

2. The blanking structure of an injection molding machine according to claim 1, characterized in that: The feeding structure (2) comprises a feeding chamber (21) arranged transversely at the bottom of the discharge box (1); the left end of the upper side of the feeding chamber (21) is connected to the feeding pipe (3); the right end of the lower side of the feeding chamber (21) is provided with a discharge port (22); an auger (23) is arranged transversely in the feeding chamber (21); the left and right ends of the auger (23) are rotatably inserted in the left and right sides of the feeding chamber (21); a driving motor (24) is provided on the right side of the feeding chamber (21) corresponding to the rotating connection of the auger (23); the driving end of the driving motor (24) is drivingly connected to the auger (23).

3. The blanking structure of an injection molding machine according to claim 1, characterized in that: The scattering assembly (5) comprises a support frame (51) arranged transversely in the feed hopper (4); a rotating motor (52) is fixedly provided in the middle of the lower side of the support frame (51); a driving end at the lower end of the rotating motor (52) is vertically driven and connected to a rotating rod (53); and a plurality of scattering blades (54) are provided in an annular manner on the surface of the rotating rod (53).

4. The blanking structure of an injection molding machine according to claim 3, characterized in that: The support frame (51) includes a collar (511) located in the middle and fixedly connected to the rotating motor (52); six connecting rods (512) are provided in an annular array on the outer side of the collar (511); one end of the six connecting rods (512) is fixedly connected to the outer side wall of the collar (511), and the other end is fixed to the inner side wall of the feed hopper (4).

5. The blanking structure of an injection molding machine according to claim 3, characterized in that: The plurality of scattering blades (54) are evenly arranged in an annular array from top to bottom on the surface of the rotating rod (53), and the distribution shape of the plurality of scattering blades (54) is consistent with the shape of the inner wall of the feed hopper (4).

6. The blanking structure of an injection molding machine according to claim 1, characterized in that: The drying structure (6) includes a heating block (61) arranged on the inner wall of the material box (1), and air holes (62) are respectively opened on the left and right side walls of the material box (1) to connect the inside and outside of the material chamber.

7. The blanking structure of an injection molding machine according to claim 6, characterized in that: The top of the discharge box (1) is provided with openings (63) on the left and right sides of the feed hopper (4), and a cover plate (64) is hinged at the opening (63). A handle (65) for opening the cover plate (64) is provided on the upper side of the cover plate (64).

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