JP2000185347A - Small-sized injection molding machine with casters - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply move an injection molding machine even by a human power with casters by utilizing an interior and an upper surface of a machine base by forming the base in a box-like body having a rectangular flat shape and being tall in height. SOLUTION: A machine base 1 is formed of a box-like body having a rectangular flat shape and being tall in height. Casters 5 are mounted at a bottom of the body so that the base 1 can be movable and installed by a human power. An injecting unit 2 and a mold clamping unit 3 are installed with a hydraulic or electric drive source on an upper surface of the base 1 in a lengthwise direction. An interior of the base 1 is vertically partitioned by a partition plate, and an equipment required for an injection molding of a mold cooling means or a mold temperature regulator is contained on a floor plate of a lower side of the partition plate. A hydraulic drive means or an electric drive means and a chute 21 or the like of a molded product and the like are contained on the partition plate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wagon-type caster in which all devices and equipment necessary for injection molding are assembled inside and outside a machine base, and can be moved and installed at any place by human power. The present invention relates to a small injection molding machine.

In a conventional small injection molding machine, even if the injection device and the mold clamping device are downsized, the machine base is formed to be larger than the injection device and the mold clamping device in order to secure a place for installing a hydraulic pump and the like. Since the machine base is merely a miniaturized version of the normal structure, even if everything including the mold is lightened by miniaturization, it is still lifted and moved and installed by a crane as before. there were.

[0003] In addition, the injection molding machine is made compact by utilizing the inside of the machine base for accommodating a control device, a mold temperature controller, and the like. Although the machine is partially developed, the movement by this conventional technology requires the guide rails laid on the floorboard, and once installed, the movement is restricted in the direction of the guide rails. It could not be moved and re-installed.

Further, since all of the plurality of electric servomotors for driving the injection device and the mold clamping device are vertically mounted on the device, the height of the molding machine becomes unnecessarily high, and the inside of the machine stand is unnecessarily high. Although the injection molding machine was designed to be compact by using it, it was not possible to make the injection molding machine easily compact.

The present invention has been conceived in order to solve the above-mentioned problems in an injection molding machine.
The machine base is formed from a tall box with a rectangular plane shape, and the injection molding machine is made more compact than before using the inside of the machine and the top of the machine, and even with the use of casters, An object of the present invention is to provide a new compact injection molding machine configured to be easily moved like a wagon.

Further, the present invention can employ either hydraulic or electric drive sources for the injection molding machine. Even if the drive means for such a drive is incorporated in a machine base together with a mold temperature controller. Another object of the present invention is to provide a new compact injection molding machine which can be configured without particularly changing the size of the machine base.

[0007]

According to the present invention, the machine base is formed by a tall box having a rectangular planar shape and a caster is attached to the bottom surface of the box, and the machine base is manually operated. It can be moved and installed, and an injection device that uses hydraulic pressure as a drive source and a mold clamping device are installed in the longitudinal direction on the upper surface of the machine, and the lower side of the mold opening position is located substantially at the center of the front plate of the machine. The molded product dropout of the shooter arranged in the machine base is opened, the inside of the machine base is divided at least up and down by the partition plate, and the chiller unit cooler, water tank and cooling unit are placed on the floor plate below the partition plate. A mold cooling means by a water pressure pump and the like, and a mold temperature controller are housed, and a hydraulic pump, an oil tank, a driving means such as a valve device of a hydraulic circuit, and a control device are housed on the partition plate, Driving means, injection device and mold clamping device Is that a formed by connecting the hydraulic circuit.

According to the present invention, the machine base is formed by a tall box having a rectangular planar shape and a caster is attached to the bottom of the box so that the machine can be moved and installed by human power. An injection device and a mold clamping device that use electricity as a drive source are installed on the upper surface of the machine base in the longitudinal direction, and are disposed in the machine base below the mold opening position at substantially the center of the front plate of the machine base. An electric servomotor for injection, which opens the molded product dropout of the shooter, forms the inside of the machine base at least by a partition plate into upper, lower, left and right storage chambers, and moves together with the injection device to the upper right half of the storage chamber, An electric servomotor for weighing and an electric servomotor for nozzle touch are accommodated, and an electric servomotor for mold clamping, an electric servomotor for ejector, and a water tank are accommodated in the upper left half of the accommodation room. Control equipment And formed by accommodating the other devices and equipment required for the injection molding, is that.

In such a configuration, all the devices and equipment as an injection molding machine are collectively provided on a machine that can be moved by casters. Therefore, the installation place only needs to secure the installation space of the machine. However, there is no restriction on the direction of movement like a conventional small injection molding machine,
It has the simplicity of movement by human power.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawings, reference numeral 1 denotes a machine base, 2 denotes an injection device installed on the upper surface of the machine base, 3 denotes a mold clamping device, and both of them are covered with a cover 4. The injection device 2 has a screw diameter of 14 mm in the heating cylinder and an injection capacity of 6.
It is about 2 cubic centimeters. Further, the mold clamping device 3 is a small one having both a mold clamping stroke and a minimum mold thickness of 110 mm and a tie bar interval of about 102 mm.

The machine base 1 has a length of 1425 mm and a height of 11
The plane shape of about 00 mm and the width of about 490 mm is made of a rectangular and tall box, and the casters 5 are attached to the four corners of the bottom of the box together with the stand member 6. It has to double.

As shown in FIGS. 1 and 5, the injection device 2 and the mold clamping device 3 are disposed in the longitudinal direction so as to be shifted toward the non-operation side of the upper surface of the machine base. The operation side is a working space 30 for mold replacement and maintenance. At the approximate center of the front plate 1a of the machine base 1, a dropout for a molded product of the shooter 21 disposed in the machine base below the mold opening position is opened. A push hand 22 is attached to the upper part.

The inside of the machine base 1 has a certain difference between a molding machine that uses hydraulic pressure as a driving source and a molding machine that uses electricity. In a hydraulic molding machine, as shown in FIG. 2 and FIG.
The inside of the machine below the injection device is partitioned into a storage room 10 of a control device 9 by a vertical partition plate 8.

A mold cooling means such as a chiller unit cooler 12, a water tank 13, a cooling water pump 14 and the like, a mold temperature controller 15, a power cord reel 16 Etc. are housed. The hydraulic pump 17 and the oil tank 1 are placed on the partition plate 7.
8 and the valve device 20 of the hydraulic circuit 19 connecting them
And the like, and these hydraulic drive means are connected to the injection device 2 and the mold clamping device 3 by a hydraulic circuit 19.

Reference numeral 23 denotes a viewing window of the water meter of the chiller unit cooler 12, and reference numeral 24 denotes a switch installation portion provided in the front panel 1a at the location of the accommodation chamber 10. 25 is a hopper, and 26 is a controller monitoring device.

FIGS. 6 and 7 show the case of an electric molding machine. The injection device 102 and the mold clamping device 103 on the machine base 1 are driven by a DC or AC electric servomotor. And has a normal structure in which the rotary motion of the electric servomotor is converted into a linear motion by a ball screw and a nut member of a normal structure to perform injection and measurement of the resin, opening and closing of the mold, and clamping.

The interior of the machine base 1 of this electric molding machine is also
Similar to the hydraulic molding machine shown in FIGS. 2 and 3, the horizontal molding is divided vertically and horizontally by a horizontal partition plate 7 and a vertical partition wall 8; Since the hydraulic valve device is not required, the right half of the upper portion in which the hydraulic valve devices are housed is the electric servomotor 10 for injection.
4. The accommodation chamber 27 for the electric servomotor 105 for measurement and the electric servomotor 106 for nozzle touch, and the left half part is used as the accommodation chamber 28 for the electric servomotor 107 for mold clamping and the electric servomotor 108 for the ejector. I have.

Of the above-mentioned electric servomotors, an injection electric servomotor 104, a measuring electric servomotor 105,
Each electric servo motor of the nozzle touch electric servo motor 106 is connected to a slidable base 109 up to the injection device main body, though its details are omitted in the drawing so as to move forward and backward together with the injection device 102. Attached to the bracket and housed inside the machine.

Since the electric servomotor 107 for mold clamping does not move, the electric servomotor for ejector 108 is mounted on the bracket plate 110 connected to the mold clamping device 103 and accommodated. And mounted so as to move with the movable platen 111 as the mold is opened and closed.

The rotational force of each of these electric servomotors is transmitted to an operating device on the injection device or mold clamping device side via a timing belt wound around each pulley and the pulley on the injection or mold clamping device side. . For example, the rotational force of the electric servomotor 105 for measurement is transmitted to the pulley 113 at the end of the apparatus to become the rotational force of an injection screw (not shown), and the rotational force of the electric servomotor 107 for mold clamping is generated at the end of the mold clamping device 103. The force is transmitted to the pulley 114 and becomes a mold clamping force.

The three electric servomotors, such as the injection electric servomotor 104 in the accommodation chamber 27,
02 moves inside the accommodation room 27 along with the reciprocating movement of 02, so that the right half accommodation room 27 has no space for accommodating other devices, but the left half accommodation room 28 has a partition plate 8 side. Since an installation space is generated, the water tank 13 is installed at that position, an accommodation room 29 is formed below the accommodation room 27, and the control device 115 and the power cord coil 16 are accommodated in the accommodation room 29. . Reference numeral 115a indicates a servo amplifier.

As described above, all the devices and equipment necessary for the injection molding of the resin, including the driving means of the molding machine installed on the machine base, are housed in the machine base 1, and the casters 5 of the machine base are accommodated. In the small-sized injection molding machine of the present invention, which can be moved by providing a hand, the hand can be freely moved in any direction by putting the hand on the pusher 22 and pushing it. Unlike the molding machine to be made, there is no restriction in the direction, and even a female worker who is less powerful than a male worker can be easily transported, and can be easily installed at a predetermined place by extending the stand member 6. it can.

Also, since all the devices and equipment necessary for injection molding are provided inside and outside the machine base 1, no equipment for cooling and controlling the temperature of the mold is required, so that no running cost is required and installation is possible. The installation space of the machine 1 is sufficient, and the driving of the molding machine is all performed inside the machine, so there is almost no contamination in the surroundings. Furthermore, since the temperature of the mold can be adjusted inside the machine, the condition It is possible to easily exchange a mold having a well-defined lining. Furthermore, since the operation side of the upper surface of the machine base is the work table 30, a jig, a mold, and the like can be placed on the work table 30 to easily perform operations such as maintenance or mold replacement.

[Brief description of the drawings]

FIG. 1 is a perspective view of a small injection molding machine with casters according to the present invention, in which hydraulic pressure is used as a drive source for an injection device and a mold clamping device.

FIG. 2 is a front view showing the machine base in a longitudinal section.

FIG. 3 is a rear view showing the machine base in a state where the cover of the injection and mold clamping device is removed.

FIG. 4 is a right side view of FIG. 1;

FIG. 5 is a plan view of the same.

FIG. 6 is a front view of a small molding machine in a case where electricity is used as a drive source of an injection device and a mold clamping device, with a cover taken off and a machine stand longitudinally sectioned.

FIG. 7 is a left side view showing the machine base in a longitudinal section.

[Explanation of symbols]

 Reference Signs List 1 machine stand 2 injection device 3 mold clamping device 4 cover 5 caster 7 partition plate 8 partition plate 9 control device 10 storage room 11 floor slab 12 chiller unit cooler 13 water tank 14 cooling water pressure pump 15 mold temperature controller 16 power cord Reel 17 Hydraulic pump 18 Oil tank 19 Hydraulic circuit 20 Valve device 21 Molded product shooter 22 Pusher 102 Electric injection device 103 Electric mold clamping device 104 Electric servomotor for injection 105 Electric servomotor for back pressure control 106 Nozzle Electric servo motor for touch 107 Electric servo motor for mold clamping 108 Electric servo motor for ejector 115 Controller

Claims (2)

[Claims] A machine base is formed by a tall box having a rectangular planar shape and a caster is attached to the bottom of the box so that the machine can be moved and installed by human power. An injection device and a mold-clamping device that use hydraulic pressure as a drive source are installed on the upper surface in the longitudinal direction, and a shooter formed in the machine base below the mold opening position at substantially the center of the front plate of the machine base is formed. While opening the product drop port, the interior of the machine base is vertically divided by at least a partition plate, and a mold cooling means such as a chiller unit cooler, a water tank and a cooling water pump is provided on a floor plate below the partition plate, A mold temperature controller is accommodated, and a hydraulic pump, an oil tank, a drive unit such as a valve device of a hydraulic circuit, and a control unit are housed on a partition plate, and the hydraulic drive unit, an injection device, and a mold clamping device are combined. It is characterized by being connected by a hydraulic circuit Injection molding machine with casters. 2. The machine base is formed of a tall box having a rectangular planar shape, and casters are attached to the bottom of the box so that the machine can be moved and installed by human power. A molded product of a shooter in which an injection device having a drive source as an electric source and a mold clamping device are installed in the longitudinal direction, and arranged in the machine below the mold opening position substantially at the center of the front plate of the machine. At the same time as the opening for the drop, the inside of the machine base is divided into at least upper, lower, left and right storage chambers by a partition plate, and the electric servomotor for injection and electric servo for weighing that move with the injection device into the upper right half of the storage chamber. A motor and an electric servomotor for nozzle touch are accommodated, and an electric servomotor for mold clamping, an electric servomotor for an ejector, and a water tank are accommodated in an accommodation room in the upper left half, and a control device and Indispensable for injection molding A small injection molding machine equipped with casters, which accommodates other necessary devices and equipment.