Drying and feeding device for injection molding machine

Abstract

The utility model relates to the technical field of injection molding feeding, and discloses a dry feeding device for an injection molding machine, which comprises a feeding hopper, one side of the feeding hopper is fixedly connected with a collecting box, the top of the collecting box and the position, close to the bottom end, of the feeding hopper are fixedly communicated with a dust suction pipe, and the end, close to the feeding hopper, of the dust suction pipe is fixedly connected with a filter screen. An exhaust port is formed in the side, away from the feeding hopper, of the collecting box, and a dust filtering net is fixedly connected into the exhaust port. Plastic particles in the feeding hopper are stirred through the stirring mechanism, impurities on the surfaces of raw materials of the plastic particles fall off, the impurities are sucked into the collecting box to be collected through cooperation of the dust suction pipe, the suction ventilator and other structures, impurity removal in the drying process of the plastic particles is achieved, and the drying efficiency of the plastic particles is improved. And impurities are prevented from being mixed in plastic particle raw materials and conveyed into an injection machine barrel of an injection molding machine, and the quality of injection molded part finished products is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding technology field especially relates to a drying feeding device for injection molding machine. BACKGROUND

[0002] Injection molding machine is also called injection molding machine or injection machine, it is the main molding equipment of thermoplastic or thermosetting plastic and is made into various shapes of plastic products by using plastic molding die, and is divided into vertical type, horizontal type and full electric type, injection molding machine can heat plastic, high pressure is applied to molten plastic, so that it fills the mold cavity. At present, the injection molding machine is transported to the injection barrel with heating function through the feeding device in the use process.

[0003] The utility model discloses a kind of feeding mechanisms of injection molding machine, including injection molding device, the injection molding device includes injection molding machine body, the feed inlet of the injection molding machine body is communicated with feed pipe, the top of the injection molding device is provided with feeding device, the top of the feeding device is provided with dosing device, the top of the feeding device is provided with suction device, the left side of the feeding device is provided with separation device, the separation device includes support, the top of the support is fixedly installed with storage bin, the bottom of the storage bin is fixedly installed with separation assembly that one end penetrates and extends to storage bin interior.The feeding mechanism of the injection molding machine, by the setting of separation device and dosing device, effectively avoid the phenomenon that granular raw material is bonded together to cause the blockage of the whole interior of feeding mechanism, so that granular raw material is efficiently fed.

[0004] The above patent lacks impurity cleaning mechanism to clean the impurities falling off during the stirring and drying of plastic granular raw materials during the drying process of plastic granular raw materials, and the impurities are transported into the barrel together with the plastic granular raw materials, which affects the quality of subsequent injection molding parts, and there is certain limitation, which needs to be improved.

[0005] Therefore, it is necessary to provide a drying feeding device for injection molding machine to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the shortcomings in the prior art and provides a drying feeding device for injection molding machine.

[0007] In order to achieve the above object, the utility model discloses the following technical scheme: a drying material loading device for injection molding machine, including the material loading hopper, one side of the material loading hopper is fixedly connected with the collecting box, the top of collecting box and the position close to the bottom of material loading hopper are fixedly connected with dust extraction pipe, one end of dust extraction pipe close to the material loading hopper is fixedly connected with the filter screen, one side of the collecting box away from the material loading hopper is provided with the exhaust port, the inside fixedly connected with the dust filter screen of exhaust port, the position of one side of collecting box and corresponding exhaust port is fixedly installed with the air suction fan, the inside of material loading hopper is provided with the stirring mechanism for stirring the plastic particle, and the heating plate is fixedly connected on the inner wall of material loading hopper.

[0008] The plastic particle in the material loading hopper is stirred through the stirring mechanism, so that the impurities on the surface of the plastic particle raw material fall off, and the impurities are sucked into the collecting box through the cooperation of the dust extraction pipe and the air suction fan, so that the impurities are collected, the impurities are removed during the drying process of the plastic particle, the impurities are prevented from being mixed with the plastic particle raw material and being conveyed into the injection cylinder of the injection molding machine, and the quality of the injection molding product is improved.

[0009] As a further description of the above technical scheme: the stirring mechanism includes a drive motor fixedly installed on the top of the material loading hopper, the output end of the drive motor is fixedly connected with a stirring shaft, and a plurality of stirring frames are fixedly connected with the outer surface of the stirring shaft along the length direction. The plastic particles in the material loading hopper can be stirred through the setting of the stirring mechanism, and the impurities on the surface of the plastic particle raw material can fall off through stirring, so that the fallen impurities are sucked and removed through the cooperation of the dust extraction pipe and the air suction fan.

[0010] As a further description of the above technical scheme: a plurality of connection rods are fixedly connected with the stirring shaft at the position close to the bottom end in a circumferential array, and a scraper is fixedly connected with the other end of the connection rod.

[0011] As a further description of the above technical scheme: the bottom end of the material loading hopper is fixedly connected with a material loading pipe, and a solenoid valve one is arranged on the material loading pipe. The plastic particles dried and impurities removed in the material loading hopper are conveniently conveyed into the cylinder of the injection molding machine through the setting of the material loading pipe, and the solenoid valve one is arranged to control the on-off of the material loading pipe.

[0012] As a further description of the above technical scheme: the top of the material loading hopper is fixedly connected with an air inlet pipe, and a solenoid valve two is arranged on the air inlet pipe. The solenoid valve two is arranged to control the on-off of the air inlet pipe.

[0013] As a further description of the above technical scheme: the side of the material loading hopper close to the top end is fixedly connected with a material suction pipe, and a solenoid valve three is arranged on one end of the material suction pipe close to the material loading hopper. The solenoid valve three is arranged to control the on-off of the material suction pipe.

[0014] As a further description of the above technical solution: the front of the collection box is hingedly provided with a sealing door, and the sealing door facilitates workers to clean the impurities collected in the collection box.

[0015] As a further description of the above technical solution: the front of the feeding hopper is fixedly provided with a control panel.

[0016] The utility model has the advantages of the following beneficial effects:

[0017] 1. Compared with the prior art, the drying and feeding device for an injection molding machine can stir the plastic particles in the feeding hopper through the stirring mechanism, so that the impurities on the surface of the plastic particle raw material fall off, and the impurities are sucked into the collection box for collection through the cooperation of the dust suction pipe, the air suction fan and other structures, thereby realizing the impurity removal during the drying of the plastic particles, avoiding the mixing of impurities in the plastic particle raw material and the delivery of the impurities into the injection cylinder of the injection molding machine, and being conducive to improving the quality of the injection molding product.

[0018] 2. Compared with the prior art, the drying and feeding device for an injection molding machine can heat and dry the plastic particles in the feeding hopper through the heating plate, and can stir the plastic particles in the feeding hopper through the stirring mechanism, thereby being conducive to uniformly heating and drying the plastic particles and improving the drying effect of the plastic particles. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The utility model provides a kind of overall structure three-dimensional schematic view of drying and feeding device for injection molding machine;

[0020] Figure 2 The utility model provides another angle three-dimensional schematic view of the overall structure of drying and feeding device for injection molding machine;

[0021] Figure 3 The utility model provides the internal structure schematic view of the feeding hopper of drying and feeding device for injection molding machine;

[0022] Figure 4 The utility model provides the internal structure schematic view of the collection box of drying and feeding device for injection molding machine.

[0023] LEGEND:

[0024] 1, feeding hopper;2, collection box;3, dust suction pipe;4, filter screen;5, dust filter screen;6, air suction fan;7, heating plate;8, driving motor;9, stirring shaft;10, stirring frame;11, connecting rod;12, scraper;13, feeding pipe;14, electromagnetic valve one;15, suction pipe;16, sealing door;17, control panel;18, air inlet pipe;19, electromagnetic valve two;20, electromagnetic valve three. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0026] With reference to Figures 1-4 The utility model provides a kind of drying and feeding device for injection molding machine: including feeding hopper 1, the side of feeding hopper 1 is fixedly connected with collection box 2, the front of collection box 2 is hingedly installed with sealing door 16, the setting of sealing door 16 is convenient for worker to clean the impurities collected in collection box 2, the top of collection box 2 and the position of feeding hopper 1 close to bottom end are fixedly connected with dust suction pipe 3, one end of dust suction pipe 3 close to feeding hopper 1 is fixedly connected with filter screen 4, the side of collection box 2 away from feeding hopper 1 is provided with exhaust port, the inside of exhaust port is fixedly connected with dust filter screen 5, collection box 2 side and the position corresponding exhaust port are fixedly installed with suction fan 6, the inside of feeding hopper 1 is provided with the stirring mechanism for stirring plastic particle, and heating plate 7 is fixedly connected on the inner wall of feeding hopper 1, plastic particle is stirred in feeding hopper 1 by stirring mechanism, so that the impurities on the surface of plastic particle raw material fall off, and impurities are sucked into collection box 2 for collection by the cooperation of dust suction pipe 3 and suction fan 6 etc., realize the edulcoration in the drying process of plastic particle, avoid impurities mixing in plastic particle raw material and being transported into injection cylinder of injection molding machine, to improve the quality of injection molding product.

[0027] Stirring mechanism includes fixedly installed driving motor 8 on the top of feeding hopper 1, the output of driving motor 8 is fixedly connected with stirring shaft 9, the outer surface of stirring shaft 9 is fixedly connected with several stirring frames 10 along length direction, the output of driving motor 8 is rotated to drive stirring shaft 9 to rotate, in turn stirring frame 10 is rotated to stir plastic particle raw material in feeding hopper 1, so that plastic particle raw material is uniformly heated and dried, improve the drying effect of plastic particle.

[0028] The other end of connecting rod 11 is fixedly connected with scraper 12, rotating connecting rod 11 by the rotation of stirring shaft 9, in turn driving scraper 12 to rotate, plastic particle at filter screen 4 is stirred, to facilitate impurities to pass through filter screen 4 and enter collection box 2 through dust suction pipe 3.

[0029] The bottom end of the upper hopper 1 is fixedly communicated with an upper feeding pipe 13, and the upper feeding pipe 13 is provided with an electromagnetic valve one 14; the top of the upper hopper 1 is fixedly communicated with an air inlet pipe 18, and the air inlet pipe 18 is provided with an electromagnetic valve two 19; one side of the upper hopper 1 is fixedly communicated with a suction pipe 15 close to the top end; the suction pipe 15 is provided with an electromagnetic valve three 20 close to one end of the upper hopper 1; the front of the upper hopper 1 is fixedly installed with a control panel 17; and the electromagnetic valve one 14, the electromagnetic valve two 19, the electromagnetic valve three 20, the air suction fan 6 and the driving motor 8 are electrically connected with the control panel 17.

[0030] Working principle: in the initial state, the electromagnetic valve one 14, the electromagnetic valve two 19 and the electromagnetic valve three 20 are all in the closed state;

[0031] In use, first, one end of the suction pipe 15 away from the upper hopper 1 is inserted into the container bag containing the plastic particle raw materials, then the air suction fan 6 and the electromagnetic valve three 20 are turned on through the control panel 17, the air suction fan 6 sucks out the air in the collection box 2, and the suction pipe 15, the upper hopper 1, the dust suction pipe 3 and the collection box 2 are communicated in turn, so that when the air in the collection box 2 is sucked out, the inside of the collection box 2 is in a negative pressure state, which indirectly makes the suction pipe 15 have a certain suction force, and the plastic particle raw materials in the container bag can be sucked into the upper hopper 1 through the suction pipe 15;

[0032] When the upper hopper 1 sucks in the appropriate amount of plastic particle raw materials, the electromagnetic valve two 19 is turned on and the electromagnetic valve three 20 is turned off, at the same time, the driving motor 8 and the heating plate 7 are turned on through the control panel 17, the heating plate 7 heats and dries the plastic particles in the upper hopper 1, and the output end of the driving motor 8 rotates to drive the stirring shaft 9 to rotate, thereby driving the stirring frame 10 to rotate and stirring the plastic particle raw materials in the upper hopper 1, so as to uniformly heat and dry the plastic particle raw materials and improve the drying effect of the plastic particles, after the plastic particles in the upper hopper 1 are dried, the electromagnetic valve one 14 is turned on, and the dried and impurity-removed plastic particle raw materials are conveyed to the injection cylinder of the injection molding machine through the upper feeding pipe 13 for subsequent injection molding operation of the product;

[0033] And the stirring mechanism stirs the plastic particles in the upper hopper 1, so that the impurities on the surface of the plastic particle raw materials fall off, and the impurities are sucked into the collection box 2 through the dust suction pipe 3 for collection, realizing the impurity removal in the plastic particle drying process, avoiding the impurities mixed in the plastic particle raw materials and conveyed to the injection cylinder of the injection molding machine, and being beneficial to improving the quality of the injection molding product;

[0034] The dust screen 5 arranged at the position of the exhaust port can intercept the impurities collected in the collection box 2, avoid the impurities being discharged from the exhaust port, not only can protect the air suction fan 6, but also can avoid the working environment being polluted;

[0035] The plastic particles in the upper hopper 1 can be intercepted by the filter screen 4, so that the plastic particles are prevented from being sucked into the collecting box 2 by the dust suction pipe 3, and the rotation of the stirring shaft 9 drives the connecting rod 11 to rotate, and then drives the scraper 12 to rotate, so that the plastic particles at the filter screen 4 are stirred, and the impurities are conveniently passed through the filter screen 4 and enter the collecting box 2 through the dust suction pipe 3.

[0036] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A drying and feeding device for injection molding machines, comprising a feeding hopper (1), characterized in that: One side of the upper hopper (1) is fixedly connected with a collecting box (2), the top of the collecting box (2) and the position close to the bottom end of the upper hopper (1) are fixedly communicated with a dust suction pipe (3), one end of the dust suction pipe (3) close to the upper hopper (1) is fixedly connected with a filter screen (4), one side of the collecting box (2) away from the upper hopper (1) is provided with an exhaust port, the inside of the exhaust port is fixedly connected with a dust filter screen (5), the side of the collecting box (2) and the position corresponding to the exhaust port are fixedly installed with a suction fan (6), the inside of the upper hopper (1) is provided with a stirring mechanism for stirring plastic particles, and the inner wall of the upper hopper (1) is fixedly connected with a heating plate (7).

2. The drying and feeding device for injection molding machine according to claim 1, characterized in that: The stirring mechanism comprises a driving motor (8) fixedly installed on the top of the upper hopper (1), the output end of the driving motor (8) is fixedly connected with a stirring shaft (9), and the outer surface of the stirring shaft (9) is fixedly connected with a plurality of stirring frames (10) along the length direction.

3. The drying and feeding device for injection molding machine according to claim 2, characterized in that: The stirring shaft (9) is fixedly connected with a plurality of connection rods (11) arranged in a circumferential array at the position close to the bottom end, and the other end of the connection rod (11) is fixedly connected with a scraper (12).

4. The drying and feeding device for injection molding machine according to claim 1, characterized in that: The bottom end of the upper hopper (1) is fixedly communicated with an upper feeding pipe (13), and the upper feeding pipe (13) is provided with a solenoid valve one (14).

5. The drying and feeding device for injection molding machine according to claim 4, characterized in that: The top of the upper hopper (1) is fixedly communicated with an air inlet pipe (18), and the air inlet pipe (18) is provided with a solenoid valve two (19).

6. The drying and feeding device for injection molding machine according to claim 1, characterized in that: One side of the upper hopper (1) is fixedly communicated with a suction pipe (15) at the position close to the top end, and one end of the suction pipe (15) close to the upper hopper (1) is provided with a solenoid valve three (20).

7. The drying and feeding device for injection molding machine according to claim 1, characterized in that: The front of the collecting box (2) is hingedly installed with a sealing door (16).

8. The drying and feeding device for injection molding machine according to claim 1, characterized in that: The front of the upper hopper (1) is fixedly installed with a control panel (17).

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