CN213675158U - Drying hopper of injection molding machine - Google Patents

Abstract

The utility model belongs to the technical field of the technique of injection molding machine and specifically relates to a dry hopper of injection molding machine is related to, and it includes hopper body and hopper cover, the top of hopper body is provided with the feed inlet, the bottom of hopper body is uncovered setting, the hopper cover through a fastener articulated set up in the opening end of hopper body, the bottom of hopper cover is provided with the discharge gate, this internal lift of hopper is provided with the stirring frame, be provided with on the stirring frame and be used for the stirring subassembly of this internal plastics of hopper, the hopper body is provided with and is used for the drive the elevating system that the stirring frame goes up and down, one side of hopper body is provided with and is used for the stoving subassembly of this internal plastics of hopper. This application has the effect that does benefit to improvement plastics drying efficiency.

Description

Drying hopper of injection molding machine

Technical Field

The application relates to the technical field of injection molding machines, in particular to a drying hopper of an injection molding machine.

Background

An injection molding machine, also known as an injection molding machine or an injection molding machine, is a main molding device for molding thermoplastic plastics or thermosetting plastics into plastic products of various shapes by using a plastic molding mold. Under normal conditions, plastics are internally provided with moisture, so that plastic raw materials are mostly dried and then produced before plastic products are produced by an injection molding machine, otherwise, the products are easy to produce defective products. Most of the modern society injection molding machines adopt a traditional dryer to solve the problem.

Present injection molding machine's drying hopper, as shown in fig. 1, including hopper body 1, hopper body 1 is vertical setting, hopper body 1's top is provided with feed inlet 11, hopper body 1's bottom is provided with discharge gate 21, hopper body 1's lateral wall is provided with the stoving subassembly that is used for the plastics in the stoving hopper body 1, when needs stoving plastics, the staff packs into plastics from hopper body 1's feed inlet 11 earlier, dry plastics under the effect of stoving subassembly, then take out the plastics after the stoving from hopper body 1's discharge gate 21.

In view of the above-mentioned related art, the inventor believes that the drying efficiency is affected by uneven drying of the plastic due to a large amount of plastic accumulated in the hopper body.

SUMMERY OF THE UTILITY MODEL

The application provides a drying hopper of injection molding machine is favorable to improving the drying efficiency of plastics.

The application provides a dry hopper of injection molding machine adopts following technical scheme:

the utility model provides a dry hopper of injection molding machine, includes hopper body and hopper cover, the top of hopper body is provided with the feed inlet, the bottom of hopper body is uncovered setting, the hopper cover through a fastener articulated set up in the opening end of hopper body, the bottom of hopper cover is provided with the discharge gate, this internal lift of hopper is provided with the stirring frame, be provided with on the stirring frame and be used for the stirring subassembly of this internal plastics of hopper, the hopper body is provided with and is used for the drive the elevating system that the stirring frame goes up and down, one side of hopper body is provided with and is used for heating and drying the stoving subassembly of this internal plastics of hopper.

Through adopting the above technical scheme, the top of hopper body is provided with the feed inlet, the bottom of hopper lid is provided with the discharge gate, be provided with the stirring subassembly that is used for stirring this internal plastics of hopper on the stirring frame, the hopper body is provided with the elevating system who is used for driving the stirring frame to go up and down, one side of hopper body is provided with the drying assembly who is used for heating the internal plastics of stoving hopper, when needs stoving plastics, the staff pours plastics into earlier from the feed inlet toward this is internal to the hopper, then in proper order under the stirring subassembly, elevating system and drying assembly's effect, this internal plastics of hopper stir and heat simultaneously this moment, and plastics are dry even, and then be favorable to improving the drying efficiency of plastics.

Optionally, the stirring subassembly includes stirring roller and driving motor, the stirring roller rotate set up in on the stirring frame, be provided with the stirring leaf that is used for stirring plastics on the stirring roller, driving motor set up in one side of stirring frame, driving motor's output shaft pass the stirring frame and with the stirring roller is connected.

Through adopting above-mentioned technical scheme, be provided with the stirring leaf that is used for stirring plastics on the stirring roller, driving motor's output shaft passes the stirring frame and is connected with the stirring roller, and when staff started driving motor, driving motor's output shaft drive stirring roller rotated, and the stirring roller drives the stirring leaf and rotates, and then is favorable to improving the stability of stirring plastics.

Optionally, the lifting mechanism includes a moving rod and a driving component for driving the moving rod to lift, the moving rod is arranged in the hopper body, one end of the moving rod is connected with the stirring frame, the other end of the moving rod penetrates through the top of the hopper body and extends to the outside of the top of the hopper body, and the driving component is arranged at the top of the hopper body.

Through adopting above-mentioned technical scheme, the one end of carriage release lever is connected with the stirring frame, and outside the other end of carriage release lever passed the top of hopper body and extended to the top of hopper body, when drive assembly drive carriage release lever descended, the final stirring leaf that drives of carriage release lever descended, and the stirring leaf stirs the plastics in the hopper this moment, and then is favorable to improving the stability of stirring plastics.

Optionally, the driving assembly comprises a lifting motor, a worm wheel, a worm and rotating teeth, the lifting motor is arranged at the top of the hopper body, the worm is connected with an output shaft of the lifting motor, the worm wheel is rotatably arranged on the hopper body, the worm is meshed with the worm wheel, the rotating teeth are rotatably arranged on the hopper body, the worm wheel is coaxially connected with the rotating teeth through a rotating shaft, the side wall of the moving rod is provided with external threads, and the rotating teeth are meshed with the external threads.

Through adopting above-mentioned technical scheme, the worm is connected with elevator motor's output shaft, worm and worm wheel intermeshing, the worm wheel through a rotation axis with rotate tooth coaxial coupling, rotate tooth and external screw thread intermeshing, when the staff starts elevator motor, elevator motor's output shaft drive worm rotates, the worm drives the worm wheel and rotates, the worm wheel drives through the rotation axis and rotates the tooth rotation, it descends to rotate the tooth drive movable rod, the movable rod finally drives the stirring leaf decline, and then is favorable to improving the stability that the movable rod goes up and down.

Optionally, the hopper body includes outer fill and interior fill, outer fill set up in outside the lateral wall of interior fill, outer fill and interior fill enclose to close and form the heating space of stoving subassembly, the lateral wall of interior fill is followed the wall thickness direction of interior fill is worn to be equipped with the heat conduction mouth, interior fill lateral wall is provided with the screen cloth, the screen cloth set up in the heat conduction mouth.

Through adopting above-mentioned technical scheme, outer fill and interior fill enclose the heating space that closes formation stoving subassembly, and the screen cloth sets up in the heat conduction mouth, and when stoving subassembly stoving heating, steam heats the lateral wall of fighting in the heating space earlier, then steam enters into interior the fighting through the screen cloth and heats the stoving to plastics, and then is favorable to improving the stability of steam stoving plastics.

Optionally, the drying component comprises a heating air inlet device and an exhaust pipe, the outer side wall of the outer bucket is communicated with a heat pipe, the output end of the heating air inlet device is communicated with the other end of the heat pipe, and the exhaust pipe is communicated with the top of the inner bucket.

Through adopting above-mentioned technical scheme, heating air inlet unit's output is linked together with the other end of heat pipe, and the blast pipe is linked together with the top of interior fill, and after heating air inlet unit produced the heat, the heat flowed into in the heating space through pouring into the pipe, and then was favorable to improving the stability of heat production.

Optionally, the fastener is bolt and nut, one side of hopper lid is provided with the fixed block, the lateral wall of outer fill corresponds outward and is provided with the connecting block, the bolt passes the connecting block and the fixed block extends to outside the fixed block lateral wall, the nut with the bolt extends to the outer one end threaded connection of fixed block lateral wall.

Through adopting above-mentioned technical scheme, the bolt passes connecting block and fixed block and extends to the fixed block lateral wall outside, and the nut extends to the outer one end threaded connection of fixed block lateral wall with the bolt, and when staff screwed up bolt and nut, the hopper lid was fixed in the open end of hopper body this moment, and then is favorable to improving the closed stability of hopper body open end.

Optionally, the agitator frame is provided with a protective cover for covering the driving motor.

Through adopting above-mentioned technical scheme, the agitator frame is provided with and is used for covering the safety cover that closes driving motor, is favorable to improving driving motor operation's stability.

To sum up, the application comprises the following beneficial technical effects:

when needs heat the stoving to plastics, the staff pours plastics into from the feed inlet of hopper body earlier, then produces the heat through heating hot blast blowpipe apparatus to heat the heating space, then under the effect of rethread elevating system and stirring subassembly, the stirring leaf heats the stirring to the plastics of fighting in this moment, and then is favorable to improving the drying efficiency of plastics.

Drawings

Fig. 1 is a schematic view of the overall structure of a drying hopper of a prior art injection molding machine.

Fig. 2 is a schematic view of the overall structure of the drying hopper of the injection molding machine of the present application.

Fig. 3 is a partial structural sectional view of the outer bucket, the inner bucket, and the protective cover of the present application.

Fig. 4 is an enlarged view of a portion a of fig. 3.

Description of reference numerals: 1. a hopper body; 11. a feed inlet; 12. a feed hopper; 13. an outer bucket; 14. an inner bucket; 15. connecting blocks; 2. a hopper cover; 21. a discharge port; 22. a discharge pipe; 23. a fixed block; 3. a stirring frame; 4. a stirring roller; 41. a drive motor; 42. stirring blades; 43. a protective cover; 5. a travel bar; 51. a lifting motor; 52. a worm gear; 53. a worm; 54. rotating the teeth; 55. a rotating frame; 56. a rotating shaft; 57. an external thread; 6. heating the space; 61. a heat conducting port; 62. screening a screen; 7. a heating air inlet device; 71. an exhaust pipe; 72. a heat conducting pipe; 8. a bolt; 81. and a nut.

Detailed Description

The present application is described in further detail below with reference to figures 2-4.

Example (b):

referring to fig. 2, a drying hopper of an injection molding machine includes a hopper body 1 and a hopper cover 2. Hopper body 1 is cylindricly, and hopper body 1 is vertical setting, and the bottom of hopper body 1 is uncovered setting. One side of the top of the hopper body 1 is provided with a feed inlet 11 along the vertical direction of the hopper body 1 in a penetrating manner, and the hopper body 1 is provided with a feed hopper 12 through the fixed communication of the feed inlet 11. The open end of the hopper body 1 is hinged with a hopper cover 2, and the hopper cover 2 is fixed on the open end of the hopper body 1 through a fastener. One side of the hopper cover 2 far away from the hinged position is provided with a discharge hole 21 along the wall thickness direction of the hopper cover 2 in a penetrating way, and the hopper cover 2 is provided with a discharge pipe 22 through the fixed communication of the discharge hole 21. Hopper body 1 is provided with the removal and is provided with stirring frame 3, and stirring frame 3 is the frame structure, and stirring frame 3 is vertical setting, and is provided with the stirring subassembly that is used for stirring hopper body 1 interior plastics bottom stirring frame 3. The hopper body 1 drives the stirring frame 3 to lift towards the direction close to or far away from the hopper cover 2 through a lifting mechanism. The hopper body 1 provides heat for heating and drying the plastic in the hopper body 1 through a drying component.

Specifically, referring to fig. 3, in order to improve the stability of the plastic stirring in the hopper body 1, the stirring assembly includes a stirring roller 4 and a driving motor 41. The stirring roller 4 is horizontally arranged, and two ends of the stirring roller 4 are respectively connected with two inner sides of the bottom of the stirring frame 3 in a rotating manner. Three stirring blades 42 are fixedly arranged on the side wall of the stirring roller 4, and the three stirring blades 42 are distributed in an annular array along the horizontal central axis direction of the stirring roller 4. The section of the stirring blade 42 is arc-shaped, which is beneficial to stirring plastics. The driving motor 41 is fixedly arranged on the outer side wall of the stirring frame 3, the output shaft of the driving motor 41 penetrates through the side wall of the stirring frame 3 and extends into the side wall of the stirring frame 3, and one end, extending into the side wall of the stirring frame 3, of the output shaft of the driving motor 41 is fixedly connected with the stirring roller 4. When the staff started driving motor 41, driving motor 41's output shaft drive stirring roller 4 rotated, and stirring roller 4 drives three stirring leaf 42 and rotates, and three stirring leaf 42 stir the plastics in the hopper body 1 this moment.

It should be noted that, referring to fig. 3, in order to maintain the operation stability of the driving motor 41, a protective cover 43 is fixedly disposed on the outer side wall of the stirring frame 3, and the protective cover 43 covers the driving motor 41.

Specifically, referring to fig. 3 and 4, in order to improve the stability of the stirring frame 3 driving the stirring roller 4 to ascend and descend towards the direction close to or away from the hopper cover 2, the elevating mechanism includes a moving rod 5 and a driving assembly for driving the moving rod 5 to ascend and descend towards the direction close to or away from the hopper cover 2. The movable rod 5 is vertically arranged, and the movable rod 5 is arranged in the hopper body 1. The lower extreme of carriage release lever 5 and the middle department fixed connection at agitator 3 top, outside the top of hopper body 1 was passed and extended to the top of hopper body 1 in the upper end of carriage release lever 5, and carriage release lever 5 slides with hopper body 1 and is connected.

Referring to fig. 3 and 4, the driving assembly includes a lifting motor 51, a worm gear 52, a worm 53, and a rotation tooth 54. The lifting motor 51 is fixedly arranged on the hopper body 1, and an output shaft of the lifting motor 51 is fixedly connected with the worm 53. The worm wheel 52 and the rotating teeth 54 are both vertically arranged, the hopper body 1 is provided with a rotating frame 55, the worm wheel 52 and the rotating teeth 54 are respectively arranged on two sides of the rotating frame 55 in a rotating mode, the top of the rotating frame 55 is provided with a rotating shaft 56 in a rotating mode, one end of the rotating shaft 56 is coaxially and fixedly connected with the worm wheel 52, and the other end of the rotating shaft 56 is coaxially and fixedly connected with the rotating teeth 54. The worm 53 is engaged with the worm wheel 52, the side wall of the moving rod 5 is correspondingly provided with an external thread 57, and the rotating teeth 54 are engaged with the moving rod 5 through the external thread 57.

When the worker starts the lifting motor 51, the output shaft of the lifting motor 51 drives the worm 53 to rotate, the worm 53 drives the worm wheel 52 to rotate, the worm wheel 52 drives the rotating shaft 56 to rotate, the rotating shaft 56 drives the rotating teeth 54 to rotate, the rotating teeth 54 drive the movable rod 5 to descend towards the direction close to the hopper cover 2, the movable rod 5 drives the stirring frame 3 to descend towards the direction close to the hopper cover 2, and the stirring frame 3 drives the stirring roller 4 to descend towards the direction close to the hopper cover 2. Due to the mutual self-locking function of the worm wheel 52 and the worm 53, when the lifting motor 51 stops starting, the stirring frame 3 is still at the current position.

Specifically, referring to fig. 3, in order to facilitate the drying component to heat and dry the plastic in the hopper body 1, the hopper body 1 includes an outer hopper 13 and an inner hopper 14, the inner hopper 14 is fixedly disposed inside the outer hopper 13, and the inner sidewall of the outer hopper 13 and the outer sidewall of the inner hopper 14 enclose each other to form a heating space 6 of hot air. The lateral wall of interior fill 14 wears to be equipped with a plurality of heat conduction mouths 61 along the wall thickness direction of interior fill 14, and a plurality of heat conduction mouths 61 are annular array along the vertical axis direction of interior fill 14 and distribute. The side wall of the inner bucket 14 is correspondingly provided with a plurality of screens 62, and the screens 62 are respectively and fixedly arranged in the heat conducting port 61. The screen 62 is advantageous in reducing the plastic in the inner bucket 14 from falling through the heat conducting port 61 into the heating space 6.

Referring to fig. 3, the drying assembly includes a heating air intake device 7 and an exhaust duct 71. A heat pipe 72 is provided outside the side wall of the outer bucket 13, one end of the heat pipe 72 is fixed to and communicates with the side wall of the outer bucket 13, and the other end of the heat pipe 72 is a free end. The heating air inlet device 7 is arranged at one side of the outer bucket 13, and the output end of the heating air inlet device 7 is fixed and communicated with the free end of the heat conduction pipe 72. The exhaust pipe 71 is vertically arranged, the exhaust pipe 71 is arranged at the top of the inner bucket 14, and one end of the exhaust pipe 71 is fixed and communicated with the top of the inner bucket 14. When the heating air intake device 7 is started by a worker, heat flows into the heating space 6 through the heat conduction pipe 72, at this time, the heat in the heating space 6 heats the side wall of the inner bucket 14 first, then the heat flows into the inner bucket 14 through the screen 62, and water vapor after plastic drying is discharged from the exhaust pipe 71.

Specifically, referring to fig. 2, in order to overhaul the stirring blade 42, the fastening member is a bolt 8 and a nut 81, one side of the hopper cover 2 away from the hinge is fixedly provided with a fixed block 23, one side opposite to the outer hopper 13 is correspondingly provided with a connecting block 15, the bolt 8 is arranged on one side of the outer hopper 13, the bolt 8 penetrates through the connecting block 15 and the fixed block 23 and extends to the bottom of the fixed block 23, and the nut 81 and the bolt 8 are connected through a thread at one end outside the bottom of the fixed block 23. When the stirring blade 42 in the inner hopper 14 needs to be overhauled, the worker firstly releases the threaded connection between the nut 81 and the bolt 8, then swings the hopper cover 2 towards the direction away from the open end of the hopper body 1, at the moment, the open end of the hopper body 1 is in an open state, and then the worker overhauls the stirring blade.

The working principle of a drying hopper of an injection molding machine is as follows:

when plastics need to be heated and dried, a worker pours the plastics into the inner hopper 14 through the feeding hopper 12, then the worker starts the heating air inlet device 7, the heat flows into the heating space 6 through the heat pipe 72, the heat preheats the inner hopper 14, and simultaneously flows into the inner hopper 14 through the screen 62 of the heat conduction port 61. Then the worker starts the driving motor 41 again, the output shaft of the driving motor 41 drives the stirring roller 4 to rotate, and the stirring roller 4 drives the stirring blade 42 to rotate. Then, the worker starts the lifting motor 51 again, the output shaft of the lifting motor 51 drives the worm 53 to rotate, the worm 53 drives the worm wheel 52 to rotate, the worm wheel 52 drives the rotating teeth 54 to rotate through the rotating shaft 56, the rotating teeth 54 drive the moving rod 5 to descend through the external threads 57, the moving rod 5 drives the stirring roller 4 to rotate through the stirring frame 3, and at the moment, the stirring blade 42 stirs the plastic in the inner bucket 14.

In conclusion, the stirring blades 42 stir the plastics in the inner hopper 14, which is beneficial to improving the drying efficiency of the plastics.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a dry hopper of injection molding machine which characterized in that: including hopper body (1) and hopper cover (2), the top of hopper body (1) is provided with feed inlet (11), the bottom of hopper body (1) is uncovered setting, hopper cover (2) through a fastener articulated set up in the opening end of hopper body (1), the bottom of hopper cover (2) is provided with discharge gate (21), it is provided with stirring frame (3) to go up and down in hopper body (1), be provided with on stirring frame (3) and be used for the stirring subassembly of plastics in hopper body (1), hopper body (1) is provided with and is used for the drive the elevating system that stirring frame (3) go up and down, one side of hopper body (1) is provided with and is used for the heating stoving the stoving subassembly of plastics in hopper body (1).

2. The drying hopper of an injection molding machine according to claim 1, wherein: the stirring subassembly includes stirring roller (4) and driving motor (41), stirring roller (4) rotate set up in on stirring frame (3), be provided with stirring leaf (42) that are used for stirring plastics on stirring roller (4), driving motor (41) set up in one side of stirring frame (3), the output shaft of driving motor (41) pass stirring frame (3) and with stirring roller (4) are connected.

3. The drying hopper of an injection molding machine according to claim 2, wherein: elevating system includes carriage release lever (5) and is used for the drive assembly that carriage release lever (5) go up and down, carriage release lever (5) set up in hopper body (1), the one end of carriage release lever (5) with agitator (3) are connected, the other end of carriage release lever (5) passes the top of hopper body (1) and extends to outside the top of hopper body (1), drive assembly set up in the top of hopper body (1).

4. The drying hopper of an injection molding machine according to claim 3, wherein: drive assembly includes elevator motor (51), worm wheel (52), worm (53) and rotates tooth (54), elevator motor (51) set up in hopper body (1) top, worm (53) with elevator motor (51)'s output shaft is connected, worm wheel (52) rotate set up in on the hopper body (1), worm (53) with worm wheel (52) intermeshing, rotate tooth (54) rotate set up in on the hopper body (1), worm wheel (52) through a rotation axis (56) with rotate tooth (54) coaxial coupling, the lateral wall of carriage release lever (5) is provided with external screw thread (57), rotate tooth (54) with external screw thread (57) intermeshing.

5. The drying hopper of an injection molding machine according to claim 4, wherein: hopper body (1) is including outer fill (13) and interior fill (14), outer fill (13) set up in outside the lateral wall of interior fill (14), outer fill (13) and interior fill (14) enclose and close and form drying assembly's heating space (6), the lateral wall of interior fill (14) is followed heat conduction mouth (61) are worn to be equipped with in the wall thickness direction of interior fill (14), interior fill (14) lateral wall is provided with screen cloth (62), screen cloth (62) set up in heat conduction mouth (61).

6. The drying hopper of an injection molding machine according to claim 5, wherein: the drying component comprises a heating air inlet device (7) and an exhaust pipe (71), the outer side wall of the outer bucket (13) is communicated with a heat conduction pipe (72), the output end of the heating air inlet device (7) is communicated with the other end of the heat conduction pipe (72), and the exhaust pipe (71) is communicated with the top of the inner bucket (14).

7. The drying hopper of an injection molding machine according to claim 6, wherein: the fastener is bolt (8) and nut (81), one side of hopper lid (2) is provided with fixed block (23), the lateral wall of outer fill (13) corresponds outward and is provided with connecting block (15), bolt (8) pass connecting block (15) and fixed block (23) and extend to outside fixed block (23) lateral wall, nut (81) with bolt (8) extend to the outer one end threaded connection of fixed block (23) lateral wall.

8. The drying hopper of an injection molding machine according to claim 3, wherein: the stirring frame (3) is provided with a protective cover (43) used for covering the driving motor (41).

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