Material homogenizing device for injection molding machine

Abstract

The utility model discloses a material homogenizing device for an injection molding machine, which comprises a homogenizing cylinder, one side of the top of the homogenizing cylinder is fixedly connected with a feeding hopper, a homogenizing component is arranged on the homogenizing cylinder, a dredging component is arranged in the feeding hopper, and the dredging component is connected with the homogenizing cylinder. The homogenizing component comprises through holes formed in the two sides of the homogenizing cylinder respectively, a stirring shaft arranged in the through holes, blades fixedly connected with the outer side of the stirring shaft, a first motor fixedly connected with one end of the stirring shaft, and a movable frame connected with the outer side of the stirring shaft. The material homogenizing device for the injection molding machine solves the problems that when an existing material homogenizing device for the injection molding machine is used, although different raw materials can be mixed, the vertical position of a whole mixing blade is fixed during mixing, the raw materials only can be mixed at a specific level, the mixing efficiency becomes poor, the homogenizing effect is influenced, and the practicability is reduced.

Description

Technical Field

[0001] This utility model relates to the field of injection molding auxiliary equipment technology, specifically a material homogenization device for injection molding machines. Background Technology

[0002] An injection molding machine, also known as an injection molding machine or injection molding machine, is a major molding equipment that uses plastic molds to make plastic products of various shapes from thermoplastic or thermosetting plastics. Its working principle is to feed raw materials into the hopper, and then the raw materials enter the screw extrusion device through the discharge port of the hopper. After being melted and plasticized by the screw extrusion device, pressure is applied for injection. After the mold is filled and cooled, the mold is opened and the part is removed. When the injection molding machine is working, the raw materials need to be mixed evenly to prevent uneven raw materials from affecting the injection molding quality.

[0003] Existing patent CN208645863U discloses a material homogenization device for injection molding machines, belonging to the field of plastic injection molding technology. Its key technical features include a first hopper, a second hopper located on one side of the first hopper, a first connecting pipe connected to the first hopper, a second connecting pipe with one end connected to the second hopper and the other end connected to the first connecting pipe, a mixing hopper connected to the end of the first connecting pipe away from the first hopper, and a mixing shaft located in the mixing hopper for stirring materials. The end of the mixing hopper away from the first connecting pipe is connected to a screw extrusion device. This invention achieves the technical effect of enabling more uniform mixing of plastic resin and additives.

[0004] Current material homogenization devices for injection molding machines can mix different raw materials, but the vertical position of the entire mixing blade is fixed during mixing, which means that the raw materials can only be mixed at a specific level. This results in poor mixing efficiency, affects the homogenization effect, and reduces practicality. Utility Model Content

[0005] The purpose of this invention is to provide a material homogenization device for injection molding machines, which solves the problem mentioned in the background art that, although existing material homogenization devices for injection molding machines can mix different raw materials, the vertical position of the entire mixing blade is fixed during mixing, resulting in the raw materials being mixed only at a specific level, which leads to poor mixing efficiency, affects the homogenization effect, and thus reduces practicality.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a material homogenization device for injection molding machines, comprising a homogenization cylinder, a feeding hopper fixedly connected to one side of the top of the homogenization cylinder, a homogenization component on the homogenization cylinder, and a dredging component inside the feeding hopper;

[0007] The homogenization component includes openings on both sides of the homogenization cylinder, a stirring shaft disposed within the openings, blades fixedly connected to the outside of the stirring shaft, a first motor fixedly connected to one end of the stirring shaft, a movable frame connected to the outside of the stirring shaft, a connecting plate fixedly connected to one side of the movable frame, a rack fixedly connected to the connecting plate, a gear connected to the rack, a fixed frame fixedly connected to one side of the homogenization cylinder, a rotating shaft fixedly connected to the gear, and a second motor fixedly connected to one end of the rotating shaft. The stirring shaft is rotatably connected to the movable frame, the first motor is fixedly connected to the movable frame, the gear meshes with the rack, and the rotating shaft is rotatably connected to the fixed frame.

[0008] Preferably, the unblocking component includes a support frame fixedly connected to the outside of the feeding hopper, a third motor fixedly connected to the top of the support frame, a lead screw fixedly connected to the bottom of the third motor, a connecting frame connected to the outside of the lead screw, and an unblocking plate fixedly connected to the bottom of the connecting frame. The lead screw is screwed to the connecting frame and rotatably connected to the support frame.

[0009] Preferably, the top and bottom of the homogenizing cylinder are fixedly connected to vertical plates, a guide groove is provided on one side of the vertical plate, a guide block is slidably connected in the guide groove, and the guide block is fixedly connected to the moving frame.

[0010] Preferably, connecting rods are fixedly connected to both sides of the stirring shaft, and a scraper is fixedly connected to one end of each connecting rod, with the scraper in contact with the inner wall of the homogenizing cylinder.

[0011] Preferably, the support frame has sliding grooves on both sides, a slider is slidably connected in the sliding groove, and a cross plate is fixedly connected between the slider and the connecting frame.

[0012] Preferably, the bottom of the drain plate is fixedly connected to a plurality of insert rods arranged in a circular pattern, and the bottom of the insert rods is conical.

[0013] Preferably, a discharge pipe is fixedly connected to one side of the bottom of the homogenizing cylinder, and a valve is installed on the outside of the discharge pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting up a homogenization cylinder, a feeding hopper, and homogenization components, the second motor can drive the gear to rotate, which can cause the two racks to move in opposite directions, thereby driving the two moving frames to move in opposite directions, and in turn driving the two stirring shafts and blades to move in opposite directions. The first motor can drive the stirring shafts and blades to rotate, which can mix the raw materials. At the same time, the stirring shafts can also move vertically while rotating, which can change the stirring position, so that the raw materials can be quickly mixed and homogenized, improving the homogenization efficiency, and thus greatly improving the practicality and efficiency of the device.

[0016] 2. With the addition of a unclogging component, the third motor can control the rotation of the lead screw, which in turn drives the connecting frame to move vertically. This allows the unclogging plate and the insert rod to move vertically as well. The unclogging plate and the insert rod can then squeeze and unclog the blocked material, allowing it to be discharged into the homogenizing cylinder. This can quickly unclog the feeding hopper without the need for manual unclogging, thus further improving its practicality. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram provided for this utility model;

[0018] Figure 2 The left view provided for this utility model;

[0019] Figure 3 Provided by this utility model Figure 2 A three-dimensional cross-sectional view at point AA;

[0020] Figure 4 Provided by this utility model Figure 3 Enlarged view of point C in the middle;

[0021] Figure 5 Front view provided for this utility model;

[0022] Figure 6 Provided by this utility model Figure 5 A three-dimensional cross-sectional view at point BB;

[0023] Figure 7 Provided by this utility model Figure 6 Enlarged view of point D in the middle.

[0024] In the diagram: 1. Homogenizing cylinder; 11. Feeding hopper; 21. Inlet; 22. Stirring shaft; 23. Blade; 24. First motor; 25. Moving frame; 26. Connecting plate; 27. Rack; 28. Gear; 29. ​​Fixed frame; 30. Rotating shaft; 31. Second motor; 41. Support frame; 42. Third motor; 43. Lead screw; 44. Connecting frame; 45. Unblocking plate; 51. Vertical plate; 52. Guide groove; 53. Guide block; 61. Connecting rod; 62. Scraper; 71. Slide groove; 72. Sliding block; 73. Horizontal plate; 81. Insert rod; 91. Discharge pipe; 92. Valve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 This utility model provides a technical solution: a material homogenization device for injection molding machines, including a homogenization cylinder 1, a feeding hopper 11 fixedly connected to one side of the top of the homogenization cylinder 1, a homogenization component on the homogenization cylinder 1, and a dredging component inside the feeding hopper 11. The homogenization component includes openings 21 on both sides of the homogenization cylinder 1, a stirring shaft 22 disposed in the openings 21, blades 23 fixedly connected to the outside of the stirring shaft 22, a first motor 24 fixedly connected to one end of the stirring shaft 22, a movable frame 25 connected to the outside of the stirring shaft 22, a connecting plate 26 fixedly connected to one side of the movable frame 25, and a rack fixedly connected to the connecting plate 26. 27. Gear 28 connected to rack 27; fixed frame 29 fixedly connected to one side of homogenizing cylinder 1; rotating shaft 30 fixedly connected to gear 28; and second motor 31 fixedly connected to one end of rotating shaft 30. Stirring shaft 22 is rotatably connected to moving frame 25. First motor 24 is fixedly connected to moving frame 25. Gear 28 meshes with rack 27. Rotating shaft 30 is rotatably connected to fixed frame 29. First motor 24 can drive stirring shaft 22 to rotate, which in turn can drive blade 23 to rotate, thus mixing and homogenizing raw materials. Second motor 31 can drive gear 28 to rotate, and gear 28 can cause the two racks 27 to rotate in opposite directions. The movement of the moving frame 25 can then cause the two stirring shafts 22 to move in the opposite direction, which in turn causes the blades 23 to move in the opposite direction, thus changing the vertical position of the blades 23 and further improving the homogenization performance. Vertical plates 51 are fixedly connected to the top and bottom of the homogenization cylinder 1. A guide groove 52 is provided on one side of the vertical plate 51, and a guide block 53 is slidably connected within the guide groove 52. The guide block 53 is fixedly connected to the moving frame 25, and the moving frame 25 can drive the guide block 53 to move vertically. The guide block 53 restricts the movement of the rack 27, preventing the rack 27 from disengaging from the gear 28. To ensure the meshing stability of rack 27 and gear 28, connecting rods 61 are fixedly connected to both sides of stirring shaft 22. A scraper 62 is fixedly connected to one end of the connecting rod 61. The scraper 62 contacts the inner wall of homogenizing cylinder 1. The rotation of stirring shaft 22 can drive the connecting rod 61 to rotate, and the rotation of connecting rod 61 can drive the scraper 62 to rotate. The scraper 62 can scrape off the raw materials remaining on the inner wall of homogenizing cylinder 1 to prevent the raw materials from affecting the homogenization effect. A discharge pipe 91 is fixedly connected to one side of the bottom of homogenizing cylinder 1. A valve 92 is installed on the outside of the discharge pipe 91. When the valve 92 is opened, the homogenized raw materials can be discharged into the injection molding machine through the discharge pipe 91.

[0027] Please see Figure 1 , Figure 5 , Figure 6 as well as Figure 7The unblocking components include a support frame 41 fixedly connected to the outside of the feeding hopper 11, a third motor 42 fixedly connected to the top of the support frame 41, a lead screw 43 fixedly connected to the bottom of the third motor 42, a connecting frame 44 connected to the outside of the lead screw 43, and an unblocking plate 45 fixedly connected to the bottom of the connecting frame 44. The lead screw 43 is screwed to the connecting frame 44 and rotatably connected to the support frame 41. When the third motor 42 is started, it can drive the lead screw 43 to rotate. The rotation of the lead screw 43 can drive the connecting frame 44 and the unblocking plate 45 to move vertically. The movement of the unblocking plate 45 can unblock the feeding hopper 11 and push the blocked raw material into the homogenizing cylinder 1, which can quickly unblock the feeding hopper. The hopper 11 and the support frame 41 have sliding grooves 71 on both sides. A slider 72 is slidably connected in the sliding groove 71. A horizontal plate 73 is fixedly connected between the slider 72 and the connecting frame 44. The movement of the connecting frame 44 can drive the horizontal plate 73 and the guide block 53 to move vertically. The guide block 53 can guide the connecting frame 44, which can improve the stability of the vertical movement of the unblocking plate 45 and prevent it from tilting. Multiple insert rods 81 arranged in a circle are fixedly connected to the bottom of the unblocking plate 45. The bottom of the insert rods 81 is conical. The vertical movement of the unblocking plate 45 can drive the insert rods 81 to move. The insert rods 81 can be inserted into the raw material to assist in unblocking the raw material and speed up the unblocking efficiency.

[0028] Working principle: During operation, raw materials are added to the homogenizing cylinder 1 through the feeding hopper 11. When a blockage occurs, the third motor 42 starts, driving the lead screw 43 to rotate. The rotation of the lead screw 43 causes the connecting frame 44 to move downwards. The downward movement of the connecting frame 44 causes the unblocking plate 45 and the insert rod 81 to move downwards. The unblocking plate 45 can contact the blocked raw materials, and the insert rod 81 can be inserted into the raw materials, thus pushing all the raw materials into the homogenizing cylinder 1. The third motor 42 reverses, causing the unblocking plate 45 to reset, and the first motor 24 starts. The first motor 24 drives the stirring shaft 22 to rotate, which in turn drives the blades 23 to rotate, thus agitating the raw materials. The second motor 31 starts. The rotating shaft 30 can be driven to rotate, which in turn drives the gear 28 to rotate. The rotation of the gear 28 causes the two racks 27 to move in opposite directions. The movement of the racks 27 causes the connecting plate 26 to move, which in turn drives the moving frame 25 to move. The movement of the moving frame 25 causes the stirring shaft 22 and the blades 23 to move, which in turn changes the vertical position of the blades 23 and improves the homogenization effect of the raw materials. The second motor 31 reverses, which causes the two stirring shafts 22 to move back to the center and reset. This process is repeated, which can greatly improve the homogenization efficiency. The above is the working process of the entire device. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0029] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A material homogenization device for an injection molding machine, comprising a homogenization cylinder (1), characterized in that: The homogenizing cylinder (1) is fixedly connected with a feeding hopper (11) on one side of the top, the homogenizing cylinder (1) is provided with a homogenizing component, and the feeding hopper (11) is provided with a dredging component. The homogenizing component comprises a through opening (21) formed on each side of the homogenizing cylinder (1), a stirring shaft (22) arranged in the through opening (21), a blade (23) fixedly connected with the outer side of the stirring shaft (22), a first motor (24) fixedly connected with one end of the stirring shaft (22), a moving frame (25) connected with the outer side of the stirring shaft (22), a connecting plate (26) fixedly connected with one side of the moving frame (25), a rack (27) fixedly connected with the connecting plate (26), a gear (28) connected with the rack (27), a fixed frame (29) fixedly connected with one side of the homogenizing cylinder (1), a rotating shaft (30) fixedly connected with the gear (28), and a second motor (31) fixedly connected with one end of the rotating shaft (30), the stirring shaft (22) is rotatably connected with the moving frame (25), the first motor (24) is fixedly connected with the moving frame (25), the gear (28) is engaged with the rack (27), and the rotating shaft (30) is rotatably connected with the fixed frame (29).

2. The material homogenizing device for an injection molding machine according to claim 1, characterized in that: The dredging component comprises a supporting frame (41) fixedly connected with the outer side of the feeding hopper (11), a third motor (42) fixedly connected with the top of the supporting frame (41), a lead screw (43) fixedly connected with the bottom of the third motor (42), a connecting frame (44) connected with the outer side of the lead screw (43), and a dredging plate (45) fixedly connected with the bottom of the connecting frame (44), the lead screw (43) is screwed with the connecting frame (44), and the lead screw (43) is rotatably connected with the supporting frame (41).

3. The material homogenizing device for an injection molding machine according to claim 1, characterized in that: The homogenizing cylinder (1) is fixedly connected with a vertical plate (51) on the top and the bottom, a guide groove (52) is formed in one side of the vertical plate (51), a guide block (53) is slidably connected in the guide groove (52), and the guide block (53) is fixedly connected with the moving frame (25).

4. The material homogenizing device for an injection molding machine according to claim 1, characterized in that: The stirring shaft (22) is fixedly connected with a connecting rod (61) on each side, a scraper (62) is fixedly connected with one end of the connecting rod (61), and the scraper (62) is in contact with the inner wall of the homogenizing cylinder (1).

5. The material homogenizing device for an injection molding machine according to claim 2, characterized in that: Sliding grooves (71) are formed in the supporting frame (41) on both sides, sliding blocks (72) are slidably connected in the sliding grooves (71), and a horizontal plate (73) is fixedly connected between the sliding blocks (72) and the connecting frame (44).

6. The material homogenizing device for an injection molding machine according to claim 2, characterized by: The dredging plate (45) is fixedly connected with a plurality of insertion rods (81) arranged in a circle on the bottom, and the bottom of the insertion rod (81) is conical.

7. The material homogenizing device for an injection molding machine according to claim 1, characterized in that: A discharge pipe (91) is fixedly connected with one side of the bottom of the homogenizing cylinder (1), and a valve (92) is mounted on the outer side of the discharge pipe (91).

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