JPH038251B2 - - Google Patents

Description

Detailed Description of the Invention Technical Field The present invention relates to an automatic molded product retrieval device that can move a holding member in any three-dimensional direction to release an injection molded product (hereinafter referred to as a molded product) at a desired release position. It is.

Conventionally, the above-mentioned type of molded product automatic take-out device has a running body that reciprocates in the left-right direction on a main body frame fixed to the injection molding machine, and a running body that is attached to the running body and grips the molded product. The structure consists of a front and rear cylinder that moves the chuck back and forth, and a vertical cylinder that is attached to a holder fixed to a piston rod in the front and rear cylinders and that moves the chuck up and down to a take-out position and a release position. Since the chuck is moved according to a preset longitudinal stroke, it has been impossible to arbitrarily vary the moving position of the chuck according to the order of extraction.

In other words, when molded products taken out from an injection molding machine are sequentially released into each section on a pallet and boxed work is performed within the molded product take-out cycle, the conventional automatic molded product take-out device does not It is impossible to change the release position of the molded product according to the order, and it is not possible to improve the efficiency and save labor of the removal operation.

In addition, the above-mentioned drawbacks can be solved by technology that arbitrarily changes the chuck part in the front-back direction or up-down direction using a servo motor, step motor, etc. that can perform positioning with high resolution. In some cases, positioning accuracy with high resolution is not required to the extent that servo motors or step motors are used.Furthermore, when servo motors or step motors are used, the control system becomes sophisticated and the equipment This has the disadvantage of increasing costs.

Purpose of the Invention The present invention was invented in order to solve the above-mentioned conventional drawbacks, and its purpose is to arbitrarily adjust the holding member according to the amount of rotation of the rotor of the longitudinal movement device and the vertical movement device. It is an object of the present invention to provide an automatic injection molded product retrieval device that can be moved in the front-rear direction and the vertical direction over a distance of , can change the movement position of a holding member very easily, and can improve the retrieval work efficiency.

Composition of the invention The present invention will be described below with reference to Examples.

Fig. 1 is a front view of the automatic molded product removal device according to the present invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a right side view of Fig. 1, and Fig. 4 is Fig. 2 A-A. Figure 5 is a cross-sectional view taken along the line B--B in Figure 2. In the figure, the main body frame 1 is a base part 1a fixed to the molding part of an injection molding machine (indicated by a chain line in the figure). and a running frame 1b having a pair of running rails 2a, 2b fixed to its upper surface, on which a running body 3 (to be described later) mounted on the running rails 2a, 2b is reciprocated in the left-right direction in the figure.

The running body 3 is meshed with a rack gear (not shown) fixed to one side of the running frame 1a.
Induction electric motor 5 that reciprocates in the left and right directions shown
It consists of front and rear running frames 3a and 3b on which a front and rear running body 6 (described later) is mounted, and a back and forth movement device 8 that moves a chuck portion 7 (described later) in the longitudinal direction in the figure.

The longitudinal movement mounting 8 is attached to a motor casing 9 fixed within the traveling body 3, and is attached to a stator core 10.
a, a stator core 10b, and a stator 10 around which an excitation coil (not shown) is wound; A rotor 11 has a female thread 11b formed on the inner periphery of a hollow portion 11a extending through its axis, and a screw shaft 12 that has a male thread 12a formed on its outer periphery and is screwed into the female thread 11b.
According to the rotational drive of the rotor 11, the screw shaft 12 is moved back and forth.

The front and rear running bodies 13 include the front and rear running frames 3a,
3b, and the screw shaft 1
The front end of 2 is fixed, and the vertical movement mounting 14 described later is attached.
is installed.

The vertical movement device 14 has the same structure as the above-mentioned longitudinal movement device 8, and is similar to the longitudinal movement device 1.
A stator 16 is attached to the casing 15 of the induction motor fixed to the motor casing 3, and includes a stator core 16a and a stator core 16b. A rotor 17 has a female thread 17b formed on the inner peripheral surface of a hollow part 17a extending through the axis of the rotor 17, and a single male thread 18a is formed on the outer periphery of the rotor 17. It consists of a screw shaft 18 that is screwed together, and a pair of guide rods 19a and 19b that are slidably mounted on the front and rear traveling body 14 parallel to the axis of the screw shaft 18.

The chuck part 7 has the screw shaft 18 and the lower ends of the guide rods 19a and 19b fixed, and uses an air cylinder and a link mechanism to invert a chuck plate 20 (described later) by about 90 degrees, thereby controlling the take-out position of the molded product. a control member 21;
It consists of at least one pair of air cylinders 22 that are fixed on a chuck plate 20 that is removably attached to the attitude control member 21 and grip the molded product.

The induction electric motor 5, the longitudinal movement device 8, and the vertical movement device 14 are integrally attached to the rotors 11 and 17 thereof, and a disk with a large number of slits formed at equal pitches on the outer periphery, and a disk at the slit position. A photodetector consisting of three pairs of light-emitting elements and a light-receiving element installed at every 1/3 pitch of the pitch, and an electric signal sequentially output from the light-receiving element based on changes in the light passing through the slit. The rotor as well as the screw shaft 1 based on the input transition state of
A detection device comprising a control circuit for calculating the direction of movement of screw shafts 2 and 18 and the amount of movement of screw shafts 12 and 18 based on the number of electrical signals is attached and numerically controlled. Since this configuration is described in detail in the "Reciprocating Device" filed by the present applicant on August 2, 1980, a detailed explanation of its configuration and operation will be omitted.

Next, the operation of this embodiment will be explained with reference to FIG.

When the traveling body 3 is located at the origin position on the left end side of the traveling frame 1b and a molding end signal is input from the injection molding machine, the rotor 11 is rotationally driven as the stator 10 is started, and the screw shaft 12 is rotated. By forward movement, the front and rear traveling body 6 is numerically controlled and moved forward by a predetermined stroke l1, and the chuck portion 7 is positioned above between the molds.

After this operation, the rotor 17 is driven to rotate by starting the stator 16 in the same manner as described above, and the chuck portion 7 is moved a predetermined stroke l2 by the downward movement of the screw shaft 18.
After moving downward by numerical control to position the chuck part 7 between the molds, and positioning the chuck part 7 on the molded product by starting the forward and backward movement device 8,
The molded product is chucked by the operation of the air cylinder 22.

Next, in the opposite direction to the previous operation, the forward and backward movement device 8 and the vertical movement device 15 are activated in reverse, and numerically controlled to return the chuck portion 7 to the thick point position, and after taking out the molded product from the mold. , the electric motor 5 is activated, and the traveling body 3 is moved to the right under numerical control, and the chuck portion 7 is positioned above the release position in the left-right direction, which is set in advance in accordance with the ejection assistance order.

At the release position, the forward and backward movement device 8 and the vertical movement device 15 move forward and backward position data and up and down positions, which are preset in accordance with the order of taking out the molded products, and which correspond to compartment position coordinates of a magasin (not shown), for example. After driving to the front and back positions and up and down positions based on the data, the clamp of the molded product by the air cylinder 23 is released, and the molded product is released into a predetermined section of the magazine.

After the above operation, the chuck part 7 is returned to the original position, and the molded product is removed and
Perform a release action.

Therefore, in this embodiment, the chuck portion 7 is moved in any left-right direction, front-rear direction, and vertical direction set in advance in accordance with the ejecting order, and the molded products held in the chuck portion 7 are moved in the ejecting order. It is therefore possible to release the moldings in a modified manner, for example into a desired compartment in a magazine as a collection box, and to carry out the packing operation of the moldings within the molding removal cycle.

Effects of the Invention As explained above, the first invention provides a traveling body that longitudinally moves a traveling frame attached to an injection molding machine, a traveling drive member that moves the traveling body in the longitudinal direction, and a traveling body that moves the traveling frame in the longitudinal direction. A front-rear moving body movably supported by a front-rear frame extending in the front-rear direction perpendicular to the front-rear direction, a longitudinal movement device for moving the front-rear travel body in the front-rear direction, and a vertical movement device attached to the front-rear travel body and perpendicular to the front-rear direction. In an automatic injection molded product retrieval device, which consists of upper and lower cylinders extending to the upper and lower cylinders, and a holding member attached to the rod of the upper and lower cylinders, and which moves the holding member in a three-dimensional direction to take out the molded product from an injection molding machine to a predetermined release position. The longitudinal motion device is rotatably supported by a casing attached to the traveling body, and includes a rotor having a screw hole extending in the longitudinal direction in the center, and a rotor provided in the casing according to the circumference of the rotor. and a screw shaft having an axis in the front-rear direction, a part of which is meshed with a screw hole of the rotor, and one end of which is attached to the front-rear traveling body. A running body that moves the running frame attached to the molding machine in the longitudinal direction, a running drive member that moves the running body in the longitudinal direction, and a front and rear frame that extends in the front and back direction perpendicular to the longitudinal direction with respect to the running body can be moved. a supported longitudinal traveling body; a longitudinally moving member for moving the longitudinal traveling body in the longitudinal direction; a vertical motion device attached to the longitudinal traveling body and extending in a vertical direction perpendicular to the longitudinal direction; and a vertical motion device attached to the vertical motion device; In an automatic injection molded product take-out device that consists of a holding member that holds a molded product and moves the holding member in a three-dimensional direction to take out the molded product from an injection molding machine to a predetermined release position, the vertical movement device is a front-rear moving body. A rotor that is rotatably supported in a casing attached to the rotor and has a screw hole in the center that extends vertically, an excitation coil provided in the casing according to the circumference of the rotor, It consists of a screw shaft having an axis line, a part of which is engaged with the screw hole of the rotor, and one end of which is attached to the holding member,
The holding member can be moved an arbitrary distance in the longitudinal direction and the vertical direction according to the rotation amount of the rotor of the longitudinal movement device and the vertical movement device, and the moving position of the holding member can be changed extremely easily, making it easy to remove It is possible to provide an automatic extraction device for injection molded products that can improve workability.

[Brief explanation of the drawing]

Fig. 1 is a front view of the automatic molded product removal device according to the present invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a right side view of Fig. 1, and Fig. 4 is Fig. 2 A-A. 5 is a sectional view taken along the line B--B in FIG. 2, and FIG. 6 is an explanatory diagram showing an example of operation.
1 is a front and rear running frame, 6 is a running body, 9 is a motor casing, 10 is a stator, 11a is a female screw, 1
2 and 18 are screw shafts, and 19a and 19b are guide rods.

Claims (1)

[Scope of Claims] 1. A traveling body that longitudinally moves a traveling frame attached to an injection molding machine, a traveling drive member that longitudinally moves the traveling body, and a front-back direction perpendicular to the longitudinal direction with respect to the traveling body. a front-rear traveling body movably supported by a front-rear frame extending to a front-rear frame; a front-rear moving device for moving the front-rear travel body in the front-rear direction; and a vertical cylinder attached to the front-rear travel body and extending in an up-down direction perpendicular to the front-rear direction; In an automatic injection molded product retrieval device that consists of a holding member attached to the rods of the upper and lower cylinders and moves the holding member in three-dimensional directions to take out the molded product from the injection molding machine to a predetermined release position, the back-and-forth movement device is A rotor that is rotatably supported by a casing attached to a running body and has a screw hole in the center that extends in the front-rear direction, an excitation coil provided in the casing according to the circumference of the rotor, and An automatic extraction device for injection molded products, comprising: a screw shaft having an axis in the direction, a part of which is engaged with a screw hole of a rotor, and one end of which is attached to a front and rear traveling body; 2. A traveling body that moves the traveling frame attached to the injection molding machine in the longitudinal direction, a traveling drive member that moves the traveling body in the longitudinal direction, and a front and rear frame that extends in the front-rear direction perpendicular to the longitudinal direction with respect to the traveling body. A front-rear moving body that is supported so that it can move forward and backward, a back-and-forth moving member that moves the front-rear moving body in the front-rear direction, a vertical movement device that is attached to the front and rear travel body and extends in a vertical direction orthogonal to the front-rear direction, and a vertical movement device that is attached to the vertical movement device. is,
In an automatic injection molded product take-out device that consists of a holding member that holds a molded product and moves the holding member in a three-dimensional direction to take out the molded product from an injection molding machine to a predetermined release position, the vertical movement device is a front-rear moving body. A rotor that is rotatably supported in a casing attached to the rotor and has a screw hole in the center that extends vertically, an excitation coil provided in the casing according to the circumference of the rotor, 1. An automatic injection molded product retrieval device comprising a screw shaft having an axis, a part of which is engaged with a screw hole of a rotor, and one end of which is attached to a holding member.