JPH0649017U - Positioning mechanism for gate cutting device - Google Patents

Abstract

(57) [Abstract] [Purpose] We propose a positioning mechanism that is designed so that the positioning work of the Geek-cut device with respect to the unloader of the molding machine can be performed easily, quickly and accurately. [Structure] An adjusting table 3 which is slidable in two horizontal (X, Y) directions by operating a feed screw 20 is provided between a support base 1 and a gate cutting device 2 mounted on the support base 1. ing.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a positioning mechanism for aligning and arranging a gate cutting device at a work delivery position taken out by a take-out machine from a molding machine.

[0002]

[Prior art]

 It is usual to take out a plastic molded product molded by an injection molding machine with the runner and sprue attached, and after molding, cut the gate to separate the product part from the runner. Recently, for the purpose of labor saving, the use of a gate cutting device (gate cutting robot) that automatically cuts off the product part from the molded product with runner taken out from the molding machine by the unloader is becoming popular.

The gate cutting device grips a runner-formed product (hereinafter referred to as a work) taken out from a molding machine on a gantry, and moves and rotates the chuck member in a predetermined manner by the chuck member. It is configured by arranging a cutter etc. that cuts the gate part of the work carried in to the cutting position, and when using it, place it on the support table and place it near the molding machine. At that time, in order to ensure that the work transfer operation does not fail between the chuck member of the unloader and the chuck member of the gate cutting device, the work must be performed by the molding machine. It is necessary to accurately align the relative position between the unloader installed and the gate cutting device located near the molding machine.

Conventionally, the positioning work of the gate cutting device with respect to the take-out device of the molding machine is performed by moving the gate cutting device together with the support base and adjusting the relative positional relationship by trial and error.

[0005]

[Problems to be solved by the device]

 However, with the current positioning method, it takes time to align the gate cutting device, and especially at the molding site where high-mix low-volume production is performed, the gate cutting device is frequently installed and removed almost every time the mold is changed. Therefore, in order to reduce the man-hours for setup change work and improve work efficiency, it is required to position the gate cutting device more quickly. Also, with the conventional method, it is difficult to make fine adjustments during installation and the positioning accuracy tends to be roughly rough, so there is a drawback that work transfer errors between the unloader and the gate cutting device are likely to occur.

The present invention pays attention to the present problems, and newly proposes a positioning mechanism devised so that the positioning work of the gate cutting device with respect to the take-out device of the molding machine can be performed simply, quickly and accurately. It is a thing.

[0007]

[Means for Solving the Problems]

 The positioning mechanism according to the present invention, as a means for achieving the above object, is provided between a support base and a gate cutting device mounted on the support base in a horizontal two-axis direction by operating a feed screw. A slidable adjustment table is provided.

[0008]

[Action]

 If this adjustment table is provided, the gate cutting device is placed on the support base and roughly positioned near the molding machine, and then installed, and then the feed screw of the adjustment table is operated to slide it in the two horizontal axes. This allows the gate cutting device on the adjustment table to be finely adjusted to a predetermined relative position with respect to the unloader and then positioned.

[0009]

【Example】

 1 to 4 show an embodiment of a positioning mechanism of a gate cutting device according to the present invention.

The outline of the entire apparatus will be described with reference to FIG. 1. A gate cutting device according to the present invention is a support base (table stand) 1 and a gate cutting device mounted on the support base 1. It is composed of a device 2 and an XY adjust table 3 which is slidable in the horizontal two-axis (X, Y) directions and is interposed between the support base 1 and the gate cutting device 2 thereon.

The support base 1 is provided with a table 4 and a stand 5, and a height adjustment handle 6 for moving the table 4 up and down is provided on the stand 5 with the screw 5a cut off. The placed gate cutting device 2 can be finely adjusted in the height (Z) direction. However, the type of the support base 1 is not necessarily limited to the type shown in the drawings, and may be, for example, a four-legged type equipped with casters with a brake.

The gate cutting device 2 mounted on the support base 1 will be described. The device 2 grips a work (not shown) on the gantry box 7 as shown in detail in FIG. The chuck member 8, a positioning guide 9 for correcting the gripping posture of the workpiece gripped by the chuck member 8, and the workpiece that is also gripped by the chuck member 8 and carried in front of the chuck member 8 are gate-cut to remove the product portion. A cutter (air nipper) unit 10 for cutting off is arranged. Reference numeral 11 denotes a work detection sensor which is arranged so as to face a work carry-in position from a unloader (not shown), and 12a and 12b denote respective product and scrap drop chutes.

The chuck member 8 of the gate cutting device 2 is provided with two rodless air cylinders 13 and 14 and a step high rotor 15 as its operating means, and as shown in the drawing, orthogonal X and Y 2 axes and Y axis are provided. It can move and rotate around three axes parallel to the axis (θ axis).

The operation of the gate cutting device 2 will be outlined. When the work detection sensor 11 detects that the work has been carried in to a predetermined delivery position by the unloader, the chuck member 8 is at the origin position (position on the left side in FIG. 4). To the Y-axis direction to receive it, and then further advances in the Y-axis direction to bring the workpiece into contact with the positioning guide 9 and re-grip it. After that, the chuck member 8 that re-grasps the workpiece retreats in the Y-axis direction and once returns to the origin, then advances straight in the X-axis direction and then in the Y-axis direction to move the workpiece to the front of the cutter unit. The cutting unit is set at the cutting position, and the cutter unit 10 operates in this state to cut the gate. Then, while rotating the workpiece as necessary, the gate portion is sequentially cut to cut off the product, and after the gate cutting is completed, the chuck member 8 discards the scrap of the residue on the way and is returned to the origin position. Then, one cycle is completed.

Therefore, in the gate cutting device 2 of this type, it is indispensable to ensure the reliability of the device by surely receiving the work by the chuck member 8. For that purpose, the unloader and the gate cutting device are required. Accurate alignment of the two relative positions is a prerequisite.

Next, the XY adjust table 3 provided between the support 1 and the gate cutting device 2 will be described. As shown in FIG. 1, the XY adjustment table 3 has a rectangular frame-shaped mounting plate 16 and a slightly smaller same-shaped slide that is superposed on the mounting plate 16 with resin plates 18 at four corners. The plate 17 and the small block pieces 19 fixed to the upper surfaces of the four sides of the mounting plate 16 are screwed into the screw holes 19a, respectively, and are horizontally biaxial (X, Y) from the facing position to the four side end faces of the slide plate 17. A plurality of (a total of eight) feed screws with a knob 20 that are brought into contact with each other in a direction are provided.

The assembled state of the XY adjustment table 3 is shown in FIGS. 2 and 3. That is, the lower mounting plate 16 is fixed to the table 4 of the support base 1, and the upper slide plate 17 is freely superposed on it through the resin plate 18, and the gate cutting device 2 is mounted on the upper slide plate 17. Is placed. Then, the feed screw 20 that is brought into contact with the end surface of the slide plate 17 from the opposite position is screwed forward and backward, so that the slide plate 17 and the gate cutting device 2 mounted on the slide plate 17 are horizontally biaxial (X, The slide can be finely adjusted in the Y direction.

Thus, as long as the gate cutting device 2 is placed on the support base 1 via the XY adjustment table 3, the gate cutting device 2 is installed in the vicinity of the molding machine. The positioning work of the device 2 can be performed easily, quickly and accurately.

That is, when positioning the gate cutting device 2 in the relative position, first, the gate cutting device 2 is placed on the support base 1 and roughly positioned near the molding machine and installed, and then the XY adjust table 3 is placed. By manipulating the feed screw 20 and sliding it in the horizontal two-axis (X, Y) directions, the gate cutting device 2 on the table 3 can be finely adjusted to a predetermined relative position with respect to the unloader and positioned accurately. . Note that the positioning in the vertical direction (Z) is adjusted by the height adjustment handle 6 provided on the stand 5 of the support base 1 as needed.

[0020]

[Effect of device]

 As described above, in the positioning mechanism of the present invention, the adjust table that is slidable in the two horizontal axes by the operation of the feed screw is provided between the support base and the gate cutting device mounted on the support base. Relative alignment between the cutting device and the unloader mounted on the molding machine can be performed easily, quickly and accurately, which shortens setup change work at the molding site, improves efficiency, and operates the gate cutting device. Will ensure the reliability of.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a positioning mechanism showing an embodiment.

FIG. 2 is a plan view showing an assembled state of the positioning mechanism of FIG.

FIG. 3 is a side view showing an assembled state of the positioning mechanism in FIG.

FIG. 4 is a perspective view showing details of a gate cutting device.

[Explanation of symbols]

 1 Support Stand (Table Stand) 2 Gate Cut Device 3 XY Adjust Table 4 Table 5 Stand 6 Height Adjustment Handle 7 Stand Box 8 Chuck Member 9 Positioning Guide 10 Cutter (Air Nipper) Unit 11 Work Detection Sensor 12a, 12b Chute 13, 14 Rodless air cylinder 15 Step high rotor 16 Mounting plate 17 Slide plate 18 Resin plate 19 Small block piece 20 Feed screw with knob

Claims (1)

[Scope of utility model registration request] 1. An adjusting table, which is slidable in two horizontal directions by operating a feed screw, is provided between a support and a gate cutting device mounted on the support. Positioning mechanism for gate cut device.