JP2015098094A - Hopper with base of injection molding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hopper with a base of an injection molding machine, the base including a discharge guide pipe which can discharge a discharged material optionally to such a direction that convenience of a worker is improved.SOLUTION: The hopper with a base of the injection molding machine includes: a hopper in which a molding material can be stored; and a base part for connecting the hopper to the injection molding machine. The base part includes: a supply part having a hole for supplying the molding material to the injection molding machine; a discharge part having another hole for discharging the molding material; a moving mechanism for moving the hopper between the supply part and the discharge part; and the discharge guide pipe which is attached to a lower part of the discharge part. The discharge guide pipe is constituted so that the molding material can be guided and discharged therethrough and a discharge direction of the molding material can be changed. As a result, the material discharged from the hopper can be discharged optionally to such a direction that convenience of the worker is improved.

Description

  The present invention relates to an injection molding machine, and more particularly to a hopper that supplies material to an injection molding machine.

  In general, when molding with an injection molding machine, a material tank called a hopper is attached to the upper part of the material supply port of the injection molding machine to supply the material, and the material is supplied from the hopper to the inside of the injection molding machine for molding. Do.

  When the molding is completed, it is necessary to discharge the surplus material remaining inside the hopper, so the outlet of the discharge pipe provided in the hopper is opened to discharge the surplus material to the outside. Alternatively, instead of providing a discharge pipe in the hopper, a swivel or slide movement mechanism is provided in the base portion where the hopper is attached to the injection molding machine, and communicates with the material discharge destination from the position where the material is supplied into the injection molding machine. Excess material in the hopper is discharged to the discharge destination through the discharge hole by moving the hopper to the position of the discharge hole by the turning or sliding mechanism. Excess material discharged is collected and used for the next molding. Here, the material is generally a pellet-shaped resin.

Here, the discharge pipe when the discharge pipe is provided in the hopper and the discharge guide pipe attached to the discharge hole of the base part where the hopper is attached are not so long from the viewpoint of installation space and operability of the molding machine. The direction of discharge is also fixed. Alternatively, there is a case where the discharge guide tube itself is not attached and only the hole is provided.
Patent Document 1 discloses a technology that includes a discharge passage for discharging the material remaining in the hopper of the injection molding machine to the outside, and discharges the material remaining in the hopper through the discharge passage.

Japanese Patent Publication No. 5-3809

In the prior art including the technique disclosed in Patent Document 1, the discharge pipe when the discharge pipe is provided in the hopper and the discharge guide pipe attached to the discharge hole of the base portion to which the hopper is attached are not so long. The direction is also fixed, or it consists only of a hole without a discharge guide tube.
Therefore, when discharging surplus material remaining inside the hopper, the pallet should correspond to the discharge part of the discharge guide tube that is short and the discharge direction is fixed, or the discharge hole when the discharge guide tube is not attached Therefore, there is a risk of working with an unreasonable posture or spilling out the discharged material.

  Accordingly, the present invention provides a hopper with a base for an injection molding machine provided with a discharge guide tube that can be discharged in a direction that is convenient for the operator in a hopper with a base for an injection molding machine. With the goal.

  The invention according to claim 1 of the present application includes a hopper capable of storing a molding material, and a base portion for connecting the hopper to an injection molding machine, and the base portion supplies the molding material to the injection molding machine. A supply unit having a hole for supplying, a discharge unit having a hole for discharging the molding material, a moving mechanism for moving the hopper between the supply unit and the discharge unit, and the discharge A discharge guide tube attached to a lower portion of the portion, wherein the discharge guide tube is capable of guiding and discharging the molding material, and the discharge direction can be changed. A provided hopper is provided.

  In the invention according to claim 1, since the discharge direction of the molding material by the discharge guide tube of the molding material from the hopper of the injection molding machine can be changed, the material discharged from the hopper is selected in a direction that is convenient for the operator. It becomes possible to discharge as possible, and workability is improved. In addition, since it is not necessary for the worker to work in an unreasonable system, it is possible to prevent the worker from being injured. Furthermore, since it is not necessary to arrange the molding material recovery tool in a narrow space, it is possible to prevent the discharged material from being dropped.

The invention according to claim 2 of the present application is characterized in that a turning mechanism is provided in at least one of the discharge guide tube or the base portion, and the discharge direction of the discharge guide tube is variable by the turning mechanism. A hopper with a base for an injection molding machine according to claim 1 is provided.
In the invention according to claim 2, in addition to the effect of the invention according to claim 1, the discharge guide pipe itself is bent because the discharge guide pipe discharge method is variable by the turning mechanism provided in the discharge guide pipe or the base portion. Even if it is not possible, the discharge direction of the molding material by the discharge guide tube can be changed.

  In the invention according to claim 3 of the present application, at least one of a plurality of attachment holes or a plurality of screw holes is provided in at least one of the discharge guide tube or the base portion, and when the discharge guide tube is attached, The discharge direction of the discharge guide tube is made variable by selecting any one of the mounting holes or the screw holes from the mounting holes or the plurality of screw holes and attaching the mounting holes to the base portion by fixing means. Item 8. A hopper with a base for an injection molding machine according to Item 1.

  In the invention according to claim 3, in addition to the effect of the invention according to claim 1, since the structure of the discharge guide tube can be made simple, it can be configured at low cost. Furthermore, since the discharge direction of the discharge guide tube is fixed in a predetermined direction, it can be configured with a member without unevenness, and it is easy to configure so that there is no gap between each part, and the material is fine like powder. Even with things, it becomes difficult for the material to enter the gap.

  In the invention according to claim 4 of the present application, a connection mechanism is provided in at least one of the discharge guide tube or the discharge portion, and the discharge guide tube is attached / detached using at least one discharge guide tube detachable from the connection mechanism. The hopper with a base for an injection molding machine according to any one of claims 1 to 3, wherein the length of the discharge guide tube can be extended.

  In the invention according to claim 4, in addition to the effects of the invention according to claims 1 to 3, the discharge guide tube can be detached or extended so that the discharge guide tube does not get in the way during normal molding. It can be removed or shortened. For this reason, the discharge guide tube can be attached or lengthened only at the time of work, so it is not subject to space restrictions such as injection molding machines, and the discharge guide tube has a more flexible shape and length. Get higher. For this reason, even when the hopper with the base is disposed at a high position from the floor surface, the material discharging operation can be performed while the container for collecting the discharged material is installed on the floor surface.

  According to the present invention, in a hopper with a base of an injection molding machine, it is possible to provide a hopper with a base of an injection molding machine provided with a discharge guide pipe capable of selectively discharging discharged materials in a direction convenient for an operator. It becomes possible.

It is the schematic which showed the state in which the hopper was located in the supply part by the hopper with a base in 1st Embodiment. It is the schematic which showed the state in which the hopper was located in the discharge part by the hopper with a base in 1st Embodiment. It is an enlarged view of the discharge part vicinity in 1st Embodiment. It is an enlarged view of the discharge part vicinity in 1st Embodiment. It is the schematic of the hopper with a base in 2nd Embodiment. It is an enlarged view of the discharge part vicinity in 2nd Embodiment. It is the schematic which looked at the discharge part vicinity in 2nd Embodiment from the upper surface. It is the schematic which looked at the discharge part vicinity in 2nd Embodiment from the upper surface. It is the figure which showed the modification of 2nd Embodiment. It is the schematic of the hopper with a base in 3rd Embodiment. It is a figure for demonstrating the attachment method of the discharge guide tube and lower plate in 3rd Embodiment. It is the figure which showed the structure of the discharge guide tube in 4th Embodiment. It is the figure which showed the structure of the discharge guide tube in 5th Embodiment.

(First embodiment)
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view showing a state in which the hopper with a base in the present embodiment is attached to a heating cylinder and the hopper is in the supply unit, and FIG. 2 is a view showing a state in which the hopper is in the discharge unit.

  The base-equipped hopper 10 includes a base portion 20 and a hopper 30. The base portion 20 is mainly composed of an upper plate 40, a lower plate 50, and a discharge guide tube 22. The upper plate 40 is configured to be slidable while being guided by the lower plate 50. The lower plate 50 is provided with a supply portion 42 having a hole for supplying a material at a portion connected to a material supply port 52 to be described later, and at a position away from the supply portion 42, A discharge portion 54 having a hole for discharging the material is provided.

  The material supply port 52 of the heating cylinder 60 of the injection molding machine is attached to the lower part of the supply unit 42 of the lower plate 50, and the material in the hopper is transferred from the hopper 30 through the hole of the supply unit 42 and the material supply port 52. It can be supplied into the heating cylinder 60. A screw 62 is disposed in the heating cylinder 60, and the material supplied into the heating cylinder 60 can be transferred in the injection portion direction (left direction in FIGS. 1 and 2).

  An upper plate 40 is attached to the lower plate 50, and a hopper 30 is attached to the upper plate 40. Then, the upper plate 40 slides relative to the lower plate 50, so that the position of the hopper 30 corresponds to the position corresponding to the supply unit 42 shown in FIG. 1 and the discharge unit 54 shown in FIG. It is configured to be movable between positions.

  A discharge guide tube 22 for guiding the discharged material is attached to the lower portion of the discharge portion 54. The discharge guide tube 22 is made of metal, resin, or rubber and has a hose shape and can be bent in an arbitrary direction. 3 and 4 are enlarged views of the vicinity of the discharge portion 54 in FIGS. 1 and 2, and the shape of the discharge guide tube 22 can be changed from the state of FIG. 3 to the state of FIG. It is. Therefore, when discharging the material in the hopper 30, the operator can bend the discharge guide tube 22 in a direction in which the operator can easily work, or can discharge the material while being bent, and the material discharged from the hopper 30 can be discharged. It can be discharged in a direction that is convenient for the operator.

(Second Embodiment)
FIG. 5 is a schematic view of the base-equipped hopper 10 in the present embodiment, and FIG. 6 is an enlarged view of the vicinity of the discharge portion 54 in FIG. In the present embodiment, the method for changing the discharge direction of the discharge guide tube 23 is different from that of the first embodiment.

  As shown in FIG. 6, in this embodiment, the pressing plates 56 are attached to both sides of the hole on the lower surface of the lower plate 50 in the vicinity of the discharge portion 54. Concave portions 57 are provided on the side of the presser plate 56 facing the holes. Further, a guide 58 is provided at the distal end portion of the discharge guide tube 23, and the discharge guide tube 23 can be pivotably supported by engaging the guide 58 and the recess 57 of the holding plate 56. .

  7 and 8 are schematic views of the vicinity of the discharge portion 54 in the present embodiment as viewed from above. As shown in FIGS. 7 to 8, the discharge guide tube 23 can be swung to change the discharge direction. As in the first embodiment, the discharge guide tube 23 can be easily operated. It is possible to change the discharge direction by turning.

  Since the discharge guide tube 23 used in the first embodiment can be bent in any direction, the discharge guide tube 23 that can be bent is made of a metal bellows. There is a possibility that the material enters the gaps of the bellows and remains in the hose. However, in the present embodiment, the discharge guide tube 23 itself is not bent, but the discharge guide tube 23 can be turned by the presser plate 56 and the guide 58, so that the inside can be configured by a smooth tubular member. It becomes possible. Therefore, it is possible to prevent the material from remaining in the discharge guide tube when the material is discharged.

  In this embodiment, as shown in FIGS. 5 to 8, the discharge guide tube 23 is shown as a straight line, but is not limited to this, and a bendable discharge guide tube 23 may be used. it can.

  FIG. 9 is a view showing a modification of the present embodiment, and shows another configuration for turning the discharge guide tube 23. In this modification, the distal end portion of the discharge guide tube 23 is fixed as a pipe-like member with a flange having a long hole 72 by using a bolt 74. In this modification, the discharge guide tube 23 can be turned by changing the fixing position of the bolt in the long hole 72.

(Third embodiment)
FIG. 10 is a schematic view of the hopper 10 with a base in the present embodiment, and FIG. 11 is a diagram for explaining a method of attaching the discharge guide tube 24 and the lower plate 50 in the present embodiment. In the present embodiment, the method for changing the discharge direction of the discharge guide tube 24 is different from the first embodiment and the second embodiment.

  In the present embodiment, as shown in FIG. 11, the lower plate 50 is provided with a plurality of screw holes 76, and the discharge guide tube 24 is provided with a plurality of through holes 78. Then, one of the screw holes 76 and the through hole 78 is selected and the discharge guide tube 24 is fixed by fixing means such as a screw, so that the direction of the discharge guide tube 24 can be selected and attached to the lower plate 50. Has been. In addition, in this embodiment, although it is set as the structure provided with both the screw hole 76 and the through-hole 78, it is possible to change the direction of the discharge guide pipe | tube 24 also as a structure provided with only any one. .

  In the present embodiment, the screw hole 76 and the through hole 78 are fixed using the fixing means, and therefore the direction of the discharge guide tube 24 cannot be changed during the operation of discharging the material. However, the direction of good workability for discharging the material in the hopper 30 generally depends on the injection molding machine itself or the environment in which the injection molding machine is installed, and is suitable for discharging the material for each work. There is little change in orientation. Therefore, it is often sufficient as a function to set and attach the direction of the discharge guide tube 24 in a direction with good workability in advance. In the present embodiment, since the structure of the discharge guide tube 24 can be made simpler than in the first and second embodiments, it can be configured at a low cost.

  Further, in the first and second embodiments, since the discharge guide pipes (22, 23) are moved, there is a possibility that irregularities and gaps may occur due to the structure of the parts. In the present embodiment, since the discharge guide tube 24 is fixed, the discharge guide tube 24 can be configured with a member having no unevenness, or can be easily configured such that a gap is not easily generated between the components. Therefore, for example, even if the material is as fine as powder, it is possible to make it difficult for the material to enter the gap.

(Fourth embodiment)
FIG. 12 is a view showing the configuration of the discharge guide tube 25 of the present embodiment. In the present embodiment, the first connector 27 is provided at the lower part of the lower plate 50, and the second connector 28 is provided at the end of the discharge guide tube 25. With the first connector 27 and the second connector 28, it is possible to easily attach the discharge guide tube 25 to the lower plate 50. As the first connector 27 and the second connector 28, a means for connecting a pipe in general, such as a connection using a ferrule and a clamper, a connection using a male screw and a female screw, or a connection using a one-touch coupler, should be used. Is possible.

  The discharge guide pipes (22, 23, 24) of the base-equipped hopper 10 in the first to third embodiments have the structure, the length of the discharge guide pipes (22, 23, 24), and the structure of the molding machine. There may be restrictions due to parts to be used. In addition, when the size of a typical 50t to 300t class molding machine is taken into consideration, the height at which the hopper 30 is installed is about 1 to 2 m from the installation surface of the molding machine. The position of the part 54 will also be located in the same height. Therefore, when the length of the discharge guide tube (22, 23, 24) is not so long, the operator can put a bag or a tray for receiving the material discharged to the vicinity of the discharge guide tube (22, 23, 24). I have to bring it. Depending on the size of the hopper 30, the weight of the discharged material may be several tens of kilometres. If the length of the discharge guide pipe (22, 23, 24) is not so long, the discharge of the material is heavy at a high place. It can be a work to handle things.

  On the other hand, in the present embodiment, since the operator only needs to attach the discharge guide tube 25 only during the discharge operation, it can be removed so as not to interfere during normal molding. Therefore, it is difficult to be restricted by the space of the molding machine or the like, and it is possible to increase the degree of freedom of the shape and length of the discharge guide tube 25. For example, even when the base-equipped hopper 10 is arranged at a high position from the floor surface, the material discharging operation can be performed while the container for collecting the discharged material is installed on the floor surface.

(Fifth embodiment)
FIG. 13 is a view showing a configuration of the discharge guide tube 25 of the present embodiment. In the fourth embodiment, the first connector 27 is provided on the lower plate 50 and the second connector 28 is provided at the end of the discharge guide tube 25. However, in the present embodiment, the lower plate 50 is provided. 50, a lower plate discharge guide pipe 26 having a first connector 27 at the end is attached in advance, and a discharge guide pipe 25 having a second connector 28 at the end can be attached. The difference is that the length of the guide tube 25 can be extended.

  In the fourth embodiment and the fifth embodiment, the description has been given of a set of the first connector 27 and the second connector 28 as the connector, but the set of connectors is one set. The discharge guide tube 25 may be configured to be extended by using a plurality of sets of connectors, or the discharge guide tube 25 can be detached from the lower plate 50 as in the combination of FIGS. The structure itself may be extended.

  Further, in FIGS. 12 and 13, the shape of the discharge guide tube has been described as being able to bend the discharge guide tube itself in the same manner as in the first embodiment. However, the present invention is not limited to this. It is also possible to attach / detach / extend the discharge guide tube configured as shown in the embodiment using a connector.

  In the embodiment described above, the hopper 10 with the base has a structure in which the hopper 30 is slid and moved in parallel to move from the supply part 42 to the discharge part 54 of the base part. Not limited to this, other moving mechanisms can be used as long as the hopper can be moved between the supply hole and the discharge hole. For example, it is also possible to use a structure in which the upper and lower two plates of the base portion 20 are fixed by fulcrum pins and the hopper is moved between the supply hole and the discharge hole by the rotational movement of the upper plate.

DESCRIPTION OF SYMBOLS 10 Base hopper 20 Base part 22,23,24,25 Discharge guide pipe 26 Lower plate discharge guide pipe 27 1st connector 28 2nd connector 30 Hopper 40 Upper plate 42 Supply part 50 Lower plate 52 Material supply port 54 discharge part 56 presser plate 57 concave part 58 guide 60 heating cylinder 62 screw 72 long hole 74 bolt 76 screw hole 78 through hole

The invention according to claim 1 of the present application includes a hopper capable of storing a molding material, and a base portion for connecting the hopper to an injection molding machine, and the base portion supplies the molding material to the injection molding machine. A supply unit having a hole for supplying, a discharge unit having a hole for discharging the molding material, a moving mechanism for moving the hopper between the supply unit and the discharge unit, and the discharge A discharge guide tube attached to a lower portion of the portion, the discharge guide tube is capable of guiding and discharging the molding material, and a turning mechanism is provided in at least one of the discharge guide tube or the base portion, A hopper with a base for an injection molding machine is provided in which the discharge direction of the discharge guide tube is variable by a turning mechanism .

In the invention according to claim 1, since the discharge direction of the molding material by the discharge guide tube of the molding material from the hopper of the injection molding machine can be changed, the material discharged from the hopper is selected in a direction that is convenient for the operator. It becomes possible to discharge as possible, and workability is improved. In addition, since it is not necessary for the worker to work in an unreasonable system, it is possible to prevent the worker from being injured. Furthermore, since it is not necessary to arrange the molding material recovery tool in a narrow space, it is possible to prevent the discharged material from being dropped.
In addition, since the discharge guide tube discharge method is variable by the turning mechanism provided in the discharge guide tube or the base portion, even if the discharge guide tube itself is not bendable, the molding material of the discharge guide tube can be changed. It becomes possible to change the discharge direction.

In the invention which concerns on Claim 2 of this application, it is equipped with the hopper which can store a molding material, and the base part for connecting the said hopper to an injection molding machine, The said base part makes the said molding material the said injection molding machine. A supply unit having a hole for supplying, a discharge unit having a hole for discharging the molding material, a moving mechanism for moving the hopper between the supply unit and the discharge unit, and the discharge A discharge guide tube attached to a lower portion of the portion, wherein the discharge guide tube can guide and discharge the molding material, and at least one of the discharge guide tube or the base portion has a plurality of mounting holes or At least one of a plurality of screw holes is provided, and when the discharge guide tube is attached, any one of the plurality of attachment holes or the plurality of screw holes is selected and fixed by a fixing means. By attaching the serial base unit, the base with the hopper of the molding machine out morphism you characterized in that the discharge direction of the discharge guide tubes is variable is provided.

In the invention according to claim 2 , since the discharge direction of the molding material by the discharge guide tube of the molding material from the hopper of the injection molding machine can be changed, the material discharged from the hopper is selected in a direction that is convenient for the operator. It becomes possible to discharge as possible, and workability is improved. In addition, since it is not necessary for the worker to work in an unreasonable system, it is possible to prevent the worker from being injured. Furthermore, since it is not necessary to arrange the molding material recovery tool in a narrow space, it is possible to prevent the discharged material from being dropped. Further, since the structure of the discharge guide tube can be simplified, it can be constructed at a low cost. Furthermore, since the discharge direction of the discharge guide tube is fixed in a predetermined direction, it can be configured with a member without unevenness, and it is easy to configure so that there is no gap between each part, and the material is fine like powder. Even with things, it becomes difficult for the material to enter the gap.

Claims (4)

A hopper capable of storing molding materials;
A base portion for connecting the hopper to an injection molding machine,
The base portion is
A supply unit having a hole for supplying the molding material to the injection molding machine;
A discharge part having a hole for discharging the molding material;
A moving mechanism for moving the hopper between the supply unit and the discharge unit;
A discharge guide pipe attached to the lower part of the discharge part,
A hopper with a base of an injection molding machine, wherein the discharge guide tube is capable of guiding and discharging the molding material, and the discharge direction can be changed. A turning mechanism is provided on at least one of the discharge guide tube or the base portion,
The hopper with a base of an injection molding machine according to claim 1, wherein the discharge direction of the discharge guide tube is variable by the turning mechanism. At least one of a plurality of mounting holes or a plurality of screw holes is provided in at least one of the discharge guide tube or the base portion,
When installing the discharge guide tube,
By selecting any of the mounting holes or screw holes from the plurality of mounting holes or the plurality of screw holes and attaching them to the base portion by a fixing means,
The hopper with a base of an injection molding machine according to claim 1, wherein the discharge direction of the discharge guide tube is variable. A connection mechanism is provided on at least one of the discharge guide tube or the discharge portion,
Using at least one discharge guide tube detachable from the connection mechanism,
The hopper with a base of an injection molding machine according to any one of claims 1 to 3, wherein the discharge guide tube is detachable or the length of the discharge guide tube can be extended.

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