JP2004001421A - Injection molding machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an injection molding machine having a plurality of injection molding machine units and capable of easily and safely performing maintenance or the like. <P>SOLUTION: The injection molding machine 10 is equipped with a cell structure 11 having a hierarchical frame 20. Lower stage unit housing parts 21 and 22 and upper stage unit housing parts 23 and 24 are provided on the hierarchical frame 20 and injection molding machine units 40a-40d are arranged to these unit housing parts 21-24. Moving stands 30 and 31, which can be drawn out horizontally, are provided to the lower stage unit housing parts 21 and 22. The injection molding machine units 40a and 40b are mounted on the moving stands 30 and 31. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an injection molding apparatus including a plurality of injection molding machine units.
[0002]
[Prior art]
Conventionally, when multiple injection molding machines are installed in a factory, peripheral equipment such as each of the injection molding machines and the material supply system and temperature control piping system attached to the injection molding machines are installed in the factory. In accordance with the position of the heat medium supply pipe, the power supply, and the like, each injection molding machine is independently and individually arranged. For this reason, if a plurality of injection molding machines are installed side by side in a factory, a floor area equivalent to the number of installed injection molding machines, including peripheral equipment, is required, and the space occupied in the factory is considerably large. growing.
[0003]
[Problems to be solved by the invention]
For this reason, it has been considered that a plurality of injection molding machines are arranged three-dimensionally in the vertical direction. However, simply overlapping the plurality of injection molding machines in the vertical direction makes it particularly difficult to perform maintenance on the lower injection molding machine. Become. Further, when some injection molding machines are operating, there is a danger in performing maintenance on other injection molding machines.
[0004]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an injection molding apparatus capable of compactly integrating a plurality of injection molding machine units and performing an operation such as maintenance of each unit easily and safely.
[0005]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided an injection molding machine comprising: a cell structure having a hierarchical frame having a lower unit receiving section and an upper unit receiving section; a cell structure disposed in the lower unit receiving section; An injection molding machine having a lower injection molding machine unit having an apparatus and an injection device, and an upper injection molding machine unit which is disposed in the upper unit housing and has a mold clamping device and an injection device. At least, in the lower and upper unit receiving sections, at least the lower unit receiving section is provided with a movable platform that can be pulled out from the hierarchical frame, and the injection molding machine unit is mounted on the movable platform. Mount.
The moving direction of the movable gantry is substantially horizontal, but may be slightly inclined with respect to the horizontal plane due to the weight of the injection molding machine unit and the like.
[0006]
According to a second aspect of the present invention, there is provided an injection molding machine comprising: a first cell structure including a hierarchical frame having a lower unit receiving unit and an upper unit receiving unit; a lower unit receiving unit and an upper unit; A second cell structure having a layered frame having a housing, and a unit clamping unit and an injection device, each of which is disposed in each of the unit housings of the first and second cell structures. What is claimed is: 1. An injection molding apparatus comprising: an injection molding machine unit; and coupling means for coupling said first and second cell structures to each other, wherein at least a lower unit housing portion of said first and second cell structures. And a movable gantry capable of being pulled out from the hierarchical frame to the outside, and the injection molding machine unit is mounted on the movable gantry.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an injection molding apparatus 10 according to a first embodiment of the present invention will be described with reference to FIGS.
This injection molding apparatus 10 includes a first cell structure 11 located on the near side in FIG. 1 and a second cell structure 12 located on the back side in FIG. Since the first and second cell structures 11 and 12 have the same configuration, the first cell structure 11 will be described below as a representative.
[0008]
The first cell structure 11 includes a hierarchical frame 20 having lower unit receiving sections 21 and 22 and upper unit receiving sections 23 and 24. The hierarchical frame 20 forms a highly rigid box-shaped frame structure by combining a plurality of column members 25 extending vertically and a plurality of beam members 26 extending horizontally.
[0009]
As shown in FIG. 2, movable frames 30 and 31 are provided in the lower unit housing sections 21 and 22, and the injection molding machine units 40 a and 40 b are mounted on the movable frames 30 and 31, respectively. These movable frames 30 and 31 can be pulled out to the operation side along guide members 32 (partially shown in FIG. 4) extending in the horizontal direction. The operation side referred to in this specification is the side on which the operation units 34 and 35 operated by the operator 33 are provided.
[0010]
Mounts 36 and 37 are also provided in the upper unit housing sections 23 and 24. The injection molding machine units 40c and 40d are mounted on these mounts 36 and 37. In this embodiment, the configurations of the injection molding machine units 40a to 40d are common to each other, but in some cases, a plurality of types of injection molding machine units having different configurations may be housed in the unit housing sections 21 to 24. .
[0011]
The injection molding machine units 40 a to 40 d are covered by a cover member 50 provided on the hierarchical frame 20. The cover member 50 includes front covers 51a, 51b, 51c, and 51d that can be opened on the operation side. Windows 52 made of a transparent material or the like are formed in the front covers 51a to 51d so that a part of the injection molding machine units 40a to 40d can be seen.
[0012]
As shown in FIG. 3, each of the injection molding machine units 40a to 40d includes a mold clamping device 60, an injection device 61, a spool unloader 62, and the like. One example of the mold clamping device 60 includes a fixed die plate 65, a movable die plate 66, a die plate driving mechanism 67, and the like.
[0013]
The fixed die 70 is attached to the fixed die plate 65. The movable die 71 is attached to the movable die plate 66. An example of the die plate driving mechanism 67 includes a ball screw 75, a servomotor 77 for rotating the ball screw 75, and the like.
[0014]
The injection device 61 includes a base member 81, a guide member 82, a movable frame 83, and the like. Along the guide member 82, the movable frame 83 can reciprocate in the left-right direction (direction along the axis X shown in FIG. 3), and the movable frame 83 is moved in the axis X direction by the geared motor 84 for nozzle touch. You can do it.
[0015]
The movable frame 83 is provided with a barrel 90, an injection servomotor 91, an injection power transmission mechanism 92, a screw rotation servomotor 93, a screw rotation power transmission mechanism 94, and the like. A screw 95 is housed inside the barrel 90. The nozzle 96 provided at the tip of the barrel 90 is located on the center line of a hole 97 (shown in FIG. 1) formed in the fixed die plate 65.
[0016]
When the movable frame 83 is advanced by the geared motor 84 for nozzle touch and the barrel 90 is advanced to a predetermined position, the tip of the nozzle 96 contacts the injection port of the fixed mold 70.
[0017]
The screw 95 can be relatively moved in the axial direction with respect to the barrel 90 by the injection servomotor 91 and the power transmission mechanism 92. The screw 95 can be rotated by a servo motor 93 for screw rotation and a power transmission mechanism 94 at the time of kneading and metering the resin as the material of the injection molded product.
[0018]
The barrel 90 is provided with a heater (not shown) for heating and melting the resin. A hopper 100 that supplies resin is provided near the base of the barrel 90. A material supply pipe 101 functioning as material supply means is connected to the hopper 100 of the lower injection molding machine units 40a and 40b. The material supply pipe 102 is also connected to the hoppers 100 of the upper injection molding machine units 40c and 40d.
[0019]
Below the dies 70, 71 of the lower injection molding machine units 40a, 40b, a product discharge chute 110 for taking out the formed product is provided. A product discharge chute 111 is also provided below the dies 70, 71 of the upper injection molding machine units 40c, 40d. These chutes 110 and 111 extend below the dies 70 and 71.
[0020]
As shown in FIG. 2, each product discharge chute 110 of the lower injection molding machine units 40a and 40b and each product discharge chute 111 of the upper injection molding machine units 40c and 40d are connected to each other of the injection molding device 10. They are arranged to be shifted in the left-right direction (the direction of the axis X shown in FIG. 3). Product outlets 112 and 113 provided at the lower ends of the product discharge chutes 110 and 111 are open to the operation side of the cell structure 11. Therefore, the products formed by the injection molding machine units 40a to 40d can be easily sorted.
[0021]
On the operation side of the cell structure 11, a controller 120 (shown in FIG. 1) using an information processing device such as a personal computer is provided. One controller 120 functioning as a setting device can individually control the operations of the four injection molding machine units 40a to 40d.
[0022]
In FIG. 2, an operation unit 34 including a switch for operating the right injection molding machine units 40a and 40c is provided in the right half of the cell structure 11, and a mold 70 for each of the injection molding machine units 40a and 40c. , 71, and a control panel 123 are accommodated. The operation unit 34 is provided with a switch or the like capable of independently selecting operation or stop of the injection molding machine units 40a and 40c.
[0023]
As shown in FIG. 4, on the back surface 11 a of the cell structure 11, that is, on the side opposite to the operation unit, temperature control pipes 124 typified by temperature control pipes, joints, valves and the like for the injection molding machine units 40 a and 40 c are provided. A part and peripheral devices such as the material supply pipes 101 and 102 are arranged. The temperature control device 122 supplies a heat medium such as a fluid that heats the molds 70 and 71 and a fluid that cools the lower part of the hopper 100 via the temperature control pipes 124 to each part of the injection molding machine units 40a and 40c. To be supplied.
[0024]
In FIG. 2, in the left half of the cell structure 11, an operation unit 35 for operating the left injection molding machine units 40b and 40d and the temperatures of the respective dies 70 and 71 of the injection molding machine units 40b and 40d are controlled. For this purpose, a temperature controller 132 and a control panel 133 are housed. The operation unit 35 is provided with a switch or the like capable of independently selecting operation or stop of the injection molding machine units 40b and 40d.
[0025]
On the back surface 11a of the cell structure 11, a part of peripheral devices such as temperature control piping 124 and material supply pipes 101 and 102 of the injection molding machine units 40b and 40d are arranged.
[0026]
The second cell structure 12 located on the back side in FIG. 1 also includes a hierarchical frame 140, like the first cell structure 11. The hierarchical frame 140 is provided with lower unit receiving sections 21 and 22 and upper unit receiving sections 23 and 24 similar to the first cell structure 11. The injection molding machine units 40e to 40h are housed in the unit housing sections 21 to 24, respectively. Note that, of these injection molding machine units 40e to 40h, only the upper units 40g and 40h are shown in FIG.
[0027]
The second cell structure 12 includes the same operation units 34 and 35 and a controller 120 as those of the first cell structure 11, temperature control devices 122 and 132, and control panels 123 and 133. Temperature control piping 124 and a part of peripheral devices such as material supply pipes 101 and 102 are arranged on the back surface 12 a of the cell structure 12.
[0028]
As shown in FIG. 4, the first cell structure 11 and the second cell structure 12 on the factory floor 152 are mutually connected by a lower connecting member 150 and an upper connecting member 151 functioning as connecting means. The rear portions 11a and 12a are connected in a state where they face each other. Further, a space S is formed between the first cell structure 11 and the second cell structure 12 so that an operator can enter during maintenance or the like.
[0029]
The lower connecting member 150 is fixed to the lower connecting portion 160 of the frames 20 and 140 by a fastening member 153 such as a bolt. The upper connecting member 151 is fixed to the upper connecting portion 165 of the frames 20 and 140 by a fastening member 154 such as a bolt.
[0030]
Hereinafter, the operation of the injection molding apparatus 10 will be described using the injection molding machine units 40a to 40d of the first cell structure 11 as a representative.
The molds 70 and 71 are closed by the mold clamping device 60, and the barrel 90 is advanced toward the fixed die plate 65 by the geared motor 84 for nozzle touch, so that the tip of the nozzle 96 is connected to the injection port of the fixed mold 70. Contact.
[0031]
Then, the injection servomotor 91 is rotated, and the screw 95 is advanced. As a result, the pre-metered molten resin in the barrel 90 is extruded from the tip of the nozzle 96 by the screw 95 and is filled in the molds 70 and 71.
[0032]
After the resin in the molds 70 and 71 has cooled, the screw 95 is retracted by a predetermined amount by rotating the injection servomotor 91 in the reverse direction. Further, the screw 95 is rotated by the screw rotation motor 93 to mix and knead the molten resin while feeding the molten resin to the tip side of the barrel 90, and to measure the molten resin.
[0033]
The movable die plate 66 is retracted by the drive mechanism 67 of the mold clamping device 60, and the molds 70 and 71 are opened. In addition, the product in the mold 71 is ejected by the ejector mechanism while the spool take-out machine 62 is operated, so that the product is dropped into the product discharge chute 110 (or 111). Thus, the injection molding process for one cycle is completed.
[0034]
In the injection molding apparatus 10, the first cell structure 11 is provided with four injection molding machine units 40a to 40d, and the second cell structure 12 is also provided with four injection molding machine units 40e to 49h. Is provided. Therefore, the same type of injection molded product can be efficiently produced. Further, different types of injection molded products can be simultaneously produced according to the types of the injection molding machine units 40a to 40h.
[0035]
In the injection molding apparatus 10, since the outlets 112, 113 of the chutes 110, 111 are integrated on the respective operation sides of the cell structures 11, 12 for each of the units 40a to 40h, it is easy to collect products. It can be carried out. Further, since the outlets 112 and 113 of the chutes 110 and 111 are independent for each of the units 40a to 40h, the products can be separately taken out and collected for each of the units 40a to 40h.
[0036]
In the injection molding apparatus 10, since a pair of injection molding machine units 40c and 40d are further arranged three-dimensionally on the pair of injection molding machine units 40a and 40b, the space on the floor 152 is effectively utilized three-dimensionally. can do. That is, the floor area occupied in the factory can be reduced to about half as compared with the case where the conventional injection molding machines are arranged only in the horizontal direction.
[0037]
When transporting the injection molding apparatus 10, the first cell structure 11 and the second cell structure 12 are brought close to each other and connected back to back as shown in FIG. For example, the connecting portions 160 provided at the lower portions of the frames 20 and 140 of the cell structures 11 and 12 are connected to each other by a temporary connecting member 161 and a fastening member 153 such as a bolt, and provided at the upper portions of the frames 20 and 140. The connecting portions 165 are connected by a fastening member 154 such as a bolt.
[0038]
By connecting the cell structures 11 and 12 close to each other in a back-to-back manner, the width of the injection molding apparatus 10 (FIG. 5) at the time of transportation can be made smaller than the width at the time of installation shown in FIG. Can be easily loaded on a carrier 170 such as a truck or a pallet.
[0039]
After the injection molding apparatus 10 is carried into the factory, the cell structures 11 and 12 are separated from each other by a predetermined distance as shown in FIG. 4, and the cell structures 11 and 12 are separated by the connecting members 150 and 151 and the fastening members 153 and 154. Are connected to each other.
[0040]
By doing so, the width of the injection molding device 10 can be increased. For this reason, even if the individual cell structures 11 and 12 are taller and unstable relative to the width, the two cell structures 11 and 12 are connected to each other by the connecting members 150 and 151 on the factory floor 152. Stability can be improved. In addition, a work space S that also serves as a layout space for peripheral devices can be secured between the back surface 11a of the first cell structure 11 and the back surface 12a of the second cell structure 12.
[0041]
When the cell structures 11 and 12 are connected by the connection members 150 and 151 as described above, the injection molding machine units 40a to 40d of the first cell structure 11 and the second cell are connected as shown in FIG. The injection molding machine units 40e to 40h of the structure 12 face in opposite directions.
[0042]
For this reason, vibration generated when the injection molding machine units 40a to 40d of the first cell structure 11 are operated and vibration generated when the injection molding machine units 40e to 40h of the second cell structure 12 are operated. Act in directions canceling each other. For this reason, the force at which the injection molding apparatus 10 moves in a specific direction due to the vibration during the injection molding can be canceled.
[0043]
The injection molding apparatus 10 can easily perform the work at the time of maintenance or trouble occurrence of the injection molding machine units 40a to 40h. For example, when performing maintenance or the like of the lower injection molding machine units 40a and 40b, the work can be easily performed by pulling out the movable gantry 30 to the operation side as shown in an example in FIG. For this reason, even when the injection molding machine units 40b to 40d are operating, the maintenance work of the unit 40a can be performed safely by stopping the injection molding machine unit 40a and pulling it out to the operation side.
[0044]
In the case of this embodiment, the first cell structure 11 and the second cell structure 12 are connected to each other by the connection members 150 and 151, so that the entire width of the injection molding apparatus 10 can be increased. Even if the position of the center of gravity moves to the operation side by pulling out the injection molding machine units 40a, 40b to the operation side, sufficient stability can be obtained.
[0045]
When performing maintenance or the like of the injection molding machine units 40c, 40d on the upper side, the front covers 51c, 51d on the upper side are opened as shown in FIG. In the case of this embodiment, the work can be more easily performed in combination with the upper surface of the cover member 50 being open. In addition, since the worker can enter the space S between the cell structures 11 and 12, the temperature control piping 124, the material supply pipes 101 and 102, the power cables for the motors 77, 84, 91 and 93, and the like. In addition, workability for various peripheral devices can be further improved.
[0046]
FIG. 6 shows an injection molding apparatus 10 'according to a second embodiment of the present invention. The injection molding device 10 'has lower unit receiving portions 21 and 22 and upper unit receiving portions 23 and 24, similarly to the injection molding device 10 of the first embodiment. Injection molding machine units 40a, 40b are mounted on movable frames 30, 31 provided in the lower unit housings 21, 22, respectively. In this injection molding apparatus 10 ′, the same parts as those of the injection molding apparatus 10 of the first embodiment are denoted by the same reference numerals, and the description is omitted.
[0047]
Injection molding machine units 40c and 40d are mounted on mounts 36 and 37 provided in the upper unit housing sections 23 and 24, respectively. The mold clamping device 60 and the injection device 61 of each of the injection molding machine units 40a to 40d are covered by separate cover members 200 and 201, respectively.
[0048]
The upper-stage injection molding machine units 40c and 40d are provided at positions shifted from the lower-stage injection molding machine units 40a and 40b by a dimension L in the left-right direction when viewed from the operation side. With this configuration, the positions of the product discharge chutes 110 of the lower units 40a and 40b and the product discharge chutes 111 of the upper units 40c and 40d can be shifted from each other in the left-right direction. , 111 and the outlets 112, 113 can be easily arranged.
[0049]
In the injection molding apparatus 10 'of the second embodiment, the positions of the chutes 110 and 111 are shifted by shifting the positions of the lower units 40a and 40b and the upper units 40c and 40d in the left and right directions. With respect to the chutes 110 and 111, the lower units 40a and 40b and the upper units 40c and 40d can have a common configuration.
[0050]
In the present invention, the direction in which the movable gantry is pulled out is not limited to the operation side, and may be configured to be pulled out, for example, in the back side or side direction of the cell structure. In short, it is only necessary to provide a movable gantry capable of pulling out the injection molding machine unit from the hierarchical frame to the outside. In addition, not only the lower stage but also the upper stage can be configured to be movable, so that the upper injection molding machine unit can be drawn out of the hierarchical frame.
[0051]
In the present invention, the injection molding machine unit is not limited to the above embodiments, but may be an injection molding machine unit having another structure. Further, the cell structure may be one in which one injection molding machine unit is arranged in each of the lower and upper stages.
[0052]
The injection molding apparatus of the present invention may include only one cell structure, or may include three or more unit housing sections of the hierarchical frame. Further, the present invention can be applied to an injection molding device for synthetic resin products, and can also be applied to an injection molding device for metal products and rubber products.
[0053]
【The invention's effect】
According to the first aspect of the present invention, the plurality of injection molding machine units can be compactly arranged by arranging the plurality of injection molding machine units three-dimensionally in the lower and upper unit housing sections. In the present invention, at least the lower injection molding machine unit is mounted on a movable gantry so that the injection molding machine unit can be pulled out at the time of maintenance or the like, so that the operation can be performed easily and safely. Can be.
[0054]
According to the second aspect of the present invention, since the first cell structure and the second cell structure are connected to each other, the width of the entire apparatus can be widened. For example, sufficient stability can be obtained even when the center of gravity moves to the operation side by being pulled out to the operation side.
[Brief description of the drawings]
FIG. 1 is a perspective view of an injection molding apparatus showing a first embodiment of the present invention.
FIG. 2 is a front view of the injection molding apparatus shown in FIG.
FIG. 3 is a plan view of the injection molding apparatus shown in FIG.
FIG. 4 is a side view of the injection molding apparatus shown in FIG.
5 is a side view showing a state where the first cell structure and the second cell structure of the injection molding apparatus shown in FIG. 1 are joined close to each other.
FIG. 6 is a front view of an injection molding apparatus showing a second embodiment of the present invention.
[Explanation of symbols]
10, 10 '... injection molding device 11 ... first cell structure 12 ... second cell structure 20 ... hierarchical frames 21, 22 ... lower unit receiving units 23, 24 ... upper unit receiving units 30, 31 ... Mobile gantry 40a to 40h Injection molding machine unit 60 Mold clamping device 61 Injection device 140 Hierarchical frames 150 and 151 Connection member (connection means)

Claims (2)

A cell structure including a hierarchical frame having a lower unit receiving section and an upper unit receiving section,
A lower injection molding machine unit, which is disposed in the lower unit housing portion and includes a mold clamping device and an injection device,
An upper injection molding machine unit that is disposed in the upper unit housing section and includes a mold clamping device and an injection device.
An injection molding apparatus comprising:
At least the lower unit storage section of the lower and upper unit storage sections is provided with a movable platform that can be pulled out from the hierarchical frame,
An injection molding apparatus, wherein the injection molding machine unit is mounted on the movable base. A first cell structure including a hierarchical frame having a lower unit receiving section and an upper unit receiving section;
A second cell structure including a hierarchical frame having a lower unit receiving section and an upper unit receiving section;
An injection molding machine unit disposed in each unit accommodating portion of the first and second cell structures, each including a mold clamping device and an injection device;
Connecting means for connecting the first and second cell structures to each other;
An injection molding apparatus comprising:
At least a lower frame unit of the first and second cell structures is provided with a movable platform that can be pulled out from the hierarchical frame to the outside,
An injection molding apparatus, wherein the injection molding machine unit is mounted on the movable base.

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