JP2002086455A - Moldings unloading machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a moldings unloading machine which is capable of shortening an unloading cycle by making a movable part lightweight and upgrading the rapid moving characteristics and the moving response and also a molding unloading machine which uses a small-size and lightweight movable part drive member with a low output and a low torque as a drive member with such advantages that the moving characteristics can be upgraded and the manufacturing cost of the device itself can be saved. SOLUTION: The chuck part of the moldings unloading machine is linearly moved at least in two directions selected from among a forward/backward direction which coincides with the center axis of a molding machine, a right and left direction and an up and down direction which are orthogonal to the axis and thus the moldings are unloaded from the molding machine. A fluororesin layer is composite formed on an anodized film formed on the surface of an aluminum material constituting a traveling support which supports the movable part for moving the chuck part and then is treated by curing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molded product removing machine for removing a molded product from a molding machine.

[0002]

As a conventional molded product take-out machine, a chuck for holding a molded product is provided with a chuck portion which is arranged in a left-right direction perpendicular to the axial direction of the molding machine (moving direction of the movable mold), the axis of the molding machine. A three-dimensional movement method in which the molded product is removed from the molding part of the molding machine to the release position on the front side of the molding machine by controlling the movement in the three-dimensional direction of the front-rear direction and the vertical direction corresponding to the above, or the chuck part is moved from the front side of the molding machine. 2. Description of the Related Art There is known a two-dimensional movement type in which movement is controlled in a left-right direction and a front-rear direction to a forming section, respectively, and taken out.

[0003] In this type of molded product take-out machine, a traveling body is provided on left and right rail portions as traveling support members provided on a traveling frame fixed to a fixed-side mounting plate of the molding machine, and the traveling body is provided on the traveling body. The tertiary chuck is supported by movably supporting the front and rear traveling body on the front and rear rails provided on the front and rear frames, and the upper and lower rails or upper and lower rods provided on the upper and lower frames on the guides provided on the front and rear traveling bodies. Original or two-dimensional movement.

However, each of the rails provided on the traveling frame, the front and rear frames, and the front and rear traveling bodies is required to have a certain degree of rigidity and to be made of steel because it is necessary to increase abrasion resistance. . In particular, in the case of a front and rear frame or a steel rail attached to a front and rear traveling body that becomes a movable part with respect to the traveling frame, the weight of the movable part is inevitable, and its high-speed movement characteristics and movement responsiveness are deteriorated. .

In addition, when the movable part is heavy, an electric motor having a high torque and a high output must be used for an electric motor such as a servo motor for moving the traveling body, the front and rear traveling body, and the upper and lower frames, respectively. As a result, the electric motor itself becomes larger and heavier, and the movable part itself becomes heavier. As a result, the high-speed movement characteristics and movement responsiveness of the movable part are deteriorated, and this has been an obstacle to shortening the cycle of removing the molded product.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned drawbacks. The object of the present invention is to reduce the weight of the movable part to improve the high-speed movement characteristics and the movement responsiveness, and to improve the take-out cycle. It is an object of the present invention to provide a molded product take-out machine capable of reducing the length of a molded product.

Another object of the present invention is to provide a molded product capable of using a small and light-weight drive member of a movable portion with low output and low torque, improving the movement characteristics and reducing the cost of the device itself. An object of the present invention is to provide a take-out machine.

[0008]

SUMMARY OF THE INVENTION The present invention is directed to a molding machine in which a chuck portion is linearly moved in at least two directions of a front-rear direction coinciding with a central axis of a molding machine, a right-left direction and a vertical direction orthogonal to the axis. In a molded product removal machine for removing a molded product, a traveling support for supporting a movable portion for moving a chuck portion is formed by forming a composite of a fluororesin layer and an anodized film formed on a surface of an aluminum material. .

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 In FIGS. 1 to 4, a traveling frame 3 of a molded product take-out machine 1 is fixed to a fixed-side mounting board (none is shown) of the molding machine, and is orthogonal to a moving direction of a movable mold of the molding machine. And extends to the open position of the molding section of the molding machine and the front of the molding machine.

A pair of running rails 5 constituting a part of a running support extending in the left-right direction are fixed on the upper surface of the running frame 3 in parallel at a predetermined interval in the right-left direction (front-back direction). A traveling body 7 is supported on each traveling rail 5 so as to be movable in the left-right direction. As a support member for the traveling body 7 with respect to the traveling rail 5, a linear bearing member (not shown) that rolls and circulates while a built-in bearing ball is brought into point contact with the traveling rail 5 is suitable.

A pair of toothed pulleys 9a and 9b are rotatably supported at left and right ends of the traveling frame 3, and a right and left driving member 11 such as a servomotor is connected to one of the toothed pulleys 9a. On each toothed pulley 9a, 9b, a toothed belt 13 having each end fixed to the traveling body 7 is stretched, and the toothed pulley 9a which rotates with the driving of the left and right driving member 11 causes the toothed belt. 13, the traveling body 7 is reciprocated in the left-right direction.

A front and rear frame 15 extending in the front-rear direction is fixed to the traveling body 7, and a pair of upper and lower upper and lower rails 17 extending in the front-rear direction constituting a part of the traveling support is fixed to the front and rear frame 15. Fixed. A front and rear traveling body 19 is supported by the front and rear rails 17 so as to be movable in the front and rear direction.

The front and rear traveling body 19 is movably supported on the front and rear rails 17 via a linear bearing member (not shown), like the traveling body 7.

A pair of toothed pulleys 21a and 21b are rotatably supported at each end of the front and rear frame 15, and a front and rear driving member 23 such as a servomotor is connected to one toothed pulley 21a. And each toothed pulley 21a
A toothed belt 25 whose ends are fixed to the front-rear traveling body 19 is stretched over 21b, and the toothed belt 25 is rotated by a toothed pulley 21a that rotates with the driving of the front-rear drive member 23.
To move the front and rear traveling body 19 in the front and rear direction.

A rail guide 27 is fixed to the front and rear traveling body 19, and an upper and lower rail 31 fixed to an upper and lower frame 29 constituting a part of the traveling support is fixed to the rail guide 27.
Are supported movably in the vertical direction. A vertical drive member 33 such as a servomotor is fixed to the front and rear traveling body 19, and a toothed pulley 35 is attached to a rotation axis of the vertical drive member 33.
Is attached.

On the other hand, a toothed belt 37 is stretched over the upper and lower frames 29 in the vertical direction.
The toothed pulley 35 of the vertical driving member 33 is meshed with a part of 7, and the vertical frame 29 is moved in the vertical direction by the toothed pulley 35 rotating with the driving of the vertical driving member 33. The rail guide 27 may be constituted by a linear bearing member having a large number of balls circulating in point contact with the upper and lower rails 31. Reference numeral 35b in the drawing denotes a belt pressing roll.

A chuck unit 39 is attached to the lower ends of the upper and lower frames 29 via a reversing drive member 41. The chuck unit 39 includes a chuck plate 39a and a chuck member 39b such as a suction cup or an air cylinder attached to the chuck plate 39a and holding a molded product.

A reversing drive member 41 is attached to a chuck plate 39 on a rotating shaft of a rod of an air cylinder, a servomotor, or the like.
When the chuck plate 39a is fixed, the chuck plate 39a is inverted and rotated between the vertical direction facing the movable mold and the chuck plate 39a facing downward in the horizontal direction facing the unloading device 40 such as a shooter or an unloading conveyor.

The above-described linear bearing members and rail guides 27 are composed of the traveling rail 5, the front and rear rails 17, and the upper and lower rails 3.
The moving body 7, the front-rear running body 19, and the upper and lower frames 29 are movably supported by moving the built-in ball with respect to 1 while making point contact. The running rail 5, the front and rear rails 17, and the upper and lower rails 31 are formed as follows.

In FIG. 5, each of the running rails 5, the front and rear rails 17 and the upper and lower rails 31, which are running support members, are made of a drawn or extruded material made of aluminum, and are subjected to a hardening process described later.

The aluminum material 51 extruded into a rail shape is anodized to form an anodic oxide film 53 on the surface.
It is formed with a thickness of about 50 μm. At this time, the anodic oxide film 53
Are formed with a large number of holes (pores) 55 by alumite treatment. The alumite treatment method is a well-known technique,
The detailed description is omitted. Then, a cured resin film 57 of a fluorocarbon polymer is formed on the surface of the anodized film 53 that has been subjected to the alumite treatment.

As a method for forming the cured resin film 57, the aluminum material 51 on which the anodic oxide film 53 has been formed is degreased and then immersed in a solution containing a fluorocarbon polymer or sprayed with the solution for drying. After the low temperature (120-2
(00 ° C.). Part of the fluorocarbon polymer melted by the baking treatment penetrates into the holes 55 and then hardens to cause an anchoring action, thereby improving the peeling resistance. As the fluorocarbon polymer, polytetrafluoroethylene and polytetrafluoroethylene-polyhexafluoroethylene copolymer are suitable.

The cured resin film 57 itself, which has abrasion resistance and heat resistance and is processed with a fluorinated resin, is transformed into a high hardness composition of about 300 to 500 micro Vickers hardness. You. The hardness of the aluminum material 51 is about 40 to 12 in micro Vickers hardness.
0, the hardness of the anodized film subjected to the alumite treatment is about 150 to 200 at the same hardness, and the hardness of the steel is also about 200 to 3
The hardness was at least equal to that of steel.

Then, the cured film 57 coated on the anodic oxide film 53 is polished. This gives the coefficient of friction of the surface (μ)
Becomes about 0.1.

The molded product take-out machine 1 configured as described above.
Will be described. In FIG. 6, first, the driving unit 33 is driven while the traveling body 7 is on standby above the molding machine to move the chuck unit 39 downward, and the molded product held in the movable mold that has been opened is formed. After the opposition, the front-rear drive member 23 is driven to move the front-rear traveling body 19 forward, and the chuck unit 39 is brought into contact with the molded product to cause the chuck unit 39 to hold the molded product.

Incidentally, as a method of holding the molded product in the chuck unit 39, a configuration may be adopted in which a protruding pin built in the movable mold is operated to press the molded product against the chuck unit 39 and hold the molded product.

Next, after the front and rear driving member 23 is moved back and the front and rear traveling body 19 is moved rearward to extract the molded product from the movable mold, the vertical driving member 33 is moved back and the chuck unit 39 is moved. Move up outside the mold. Next, the left and right driving members 11 are driven to move the traveling body 7 toward the release position,
When the chuck unit 39 moves to the release position, the front-rear drive member 23 and the vertical drive member 33 are driven to move the chuck unit 39 onto a discharge device 40 such as a discharge conveyor or a shooter provided at the release position.

At this position, if necessary, the chuck unit 39 is driven in reverse by the reversing device to make the molded product face the discharge surface, and then the molded product is released and taken out.

The traveling body 7 slides on the traveling rail 5, the front and rear traveling body 19 on the front and rear rails 17, and the upper and lower rails 31 slide with respect to the rail guide 27 to move the chuck unit 39 to a desired position. When moving, especially the front and rear rails 17 and the upper and lower rails 31 are made of aluminum and the weight can be reduced to about 1/3 as compared with the conventional steel rail, so that the weight of these movable parts can be reduced, The stopping accuracy can be improved by moving the chuck unit 39 at high speed and reducing the load inertia.

The left and right driving members 11 and the front and rear driving members 2
Since a small and lightweight electric motor with low torque and low output can be adopted as the third and upper and lower driving members 33,
The weight of the entire traveling body 7 including the upper and lower frames 29 and the front and rear traveling bodies 19 can be reduced, and the above-described high-speed movement responsiveness and the like can be improved.

Further, the cured resin film 57 itself formed compositely on the traveling rail 5, the front and rear rails 17, and the upper and lower rails 31,
Since it has a low friction coefficient and abrasion resistance, the traveling body 7, the front-rear traveling pair 19, and the upper and lower frames 29 can be stably moved at high speed for a long period of time.

The drive mechanism for moving the traveling body 7, the front-rear traveling body 19 and the upper and lower frames 29 is not limited to the above, and the traveling body 7 and the front-rear traveling body 19
The following structure may be used as a drive mechanism for moving the. Although the driving mechanism of the traveling body 7 will be described as an example, the same applies to the driving mechanism of the front and rear traveling body 19, and a detailed description thereof will be omitted.

A rack gear extending in the left-right direction is mounted on the traveling rail 5 and an electric motor such as a servomotor having a pinion gear meshing with the rack gear is mounted on the traveling body 7 on a rotating shaft. A rack-pinion mechanism for moving the traveling body 7 by rotational driving, and a permanent magnet or a stator such as an electromagnet device is attached to the traveling rail 5 in the left-right direction. When the device or the stator is an electromagnet device, any of a linear motor mechanism that attaches a mover made of a permanent magnet and controls the excitation of the electromagnet device to control the movement of the traveling body 7 may be used.

The vertical drive mechanism of the chuck unit 39 is not limited to the above, and may have the following structure.

A vertically extending rack gear is mounted on an upper and lower frame 29 supported by the rail guide 27 so as to be movable in the vertical direction, and a pinion gear meshing with the rack gear is mounted on the rotating shaft on the front and rear traveling body 19. And a rack-pinion mechanism for mounting an electric motor such as a servomotor.

The above-mentioned molded product take-out machine 1 is configured to take out a molded product by moving the chuck unit 39 in the three-dimensional directions of the left-right direction, the front-rear direction and the up-down direction. As shown in FIG. A molded product take-out machine 60 of a type in which the molded product is taken out by moving at least in the left-right direction.
It may be.

That is, a molded product unloading machine 60 is provided in front of the molding machine.
And a linear bearing member (not shown) is attached to the base 61. The linear bearing member slidably supports a rail 67 attached to a movable arm 65 having a length extending in the left-right direction from the front of the molding machine to a molding portion of the molding machine.

As the rail 67, similarly to the running rail 5, the front and rear rails 17 and the upper and lower rails 31 attached to the molding machine 1 described in the above embodiment, an anodic oxide film is formed on the surface of an aluminum material, and then a fluorinated resin is formed. Is formed.

Further, a feed screw 69 connected to an electric motor 63 such as a servomotor is attached to the base 61 and a nut member 71 fixed to a movable arm 65 is engaged with the linear bearing member 63 so that the base 61 is engaged. , The movable arm 65 is configured to be movable in the left-right direction. Then, the chuck unit 73 is attached to the tip of the movable arm 65. The chuck unit 73 includes a chuck plate 73a attached to the distal end of the movable arm 65 similarly to the chuck unit 39, and a chuck member 73b attached to the chuck plate 73a to hold a molded product.

In order to bring the molded product into contact with the chuck unit 73 that has entered between the opened molds, the molded product in the movable mold is protruded by a protruding pin mounted in the movable mold. One of a system in which the base unit 61 is movably supported in the front-rear direction with respect to the molding machine, and a system in which the chuck unit 73 is movably mounted in the front-rear direction on the tip of the movable arm 65. You may.

Further, in the laterally traveling type molded product unloading machine shown in FIG. 7, the rotary pulleys 81 and 83 rotatably supported on the left and right ends of one side of the movable arm 65 as shown in FIG. , A belt 85 partially fixed to the base 61 is stretched. In addition, rotating pulleys 87 and 89 are rotatably supported at both ends of the other side surface of the movable arm 65, and one of the pulleys 87 is coaxially connected with the rotating pulley 81 to be integrally rotated.

A belt 9 is attached to these pulleys 87 and 89.
1 and a part of the belt 91 is fixed to a chuck unit 95 supported on a rail 93 provided on the movable arm 65 so as to be movable in the left-right direction, and as the movable arm 65 moves with respect to the base 61. It may be configured as a double speed mechanism that moves the chuck unit 95 at about twice the moving distance of the movable arm 65 by running the belts 85 and 91 respectively.

The rail 93 is formed by forming an anodic oxide film on the surface of an aluminum material and then forming a cured resin film of a fluororesin similarly to the rail 67. For the detailed structure of a molded product unloading machine equipped with a double speed mechanism, see Japanese Patent Laid-Open No. 1-2
It is the same as that shown in No. 46085, and the detailed description is omitted.

Embodiment 2 Although the traveling support pair is a rail in Embodiment 1 described above, the present embodiment is characterized in that the traveling support is constituted by a shaft member such as a guide rod. FIG. 9 shows front and rear frame portions of a molded product take-out device 91 having a guide rod as a running support for supporting the front and rear running bodies. In the drawing, the same members as those in the first embodiment are denoted by the same reference numerals. A detailed description thereof will be omitted.

The front and rear frames 15 are a pair of upper and lower guide rods 9 which form a traveling support and have an axis in the front and rear direction.
The guide rod 93 is mounted on the front and rear traveling body 19.
Are slidably supported in the axial direction.

The guide rod 93 is formed by forming an anodic oxide film on the surface of a pultruded or extruded aluminum material in the same manner as each of the rails 5, 17, and 31 of the first embodiment. And a curing treatment.

In the above description, a guide rod is used as a member for supporting the front and rear traveling body. However, the present invention may employ a guide rod for a member for supporting the traveling body and / or a member for supporting the upper and lower frames. Of course.

[0048]

According to the present invention, it is possible to shorten the takeout cycle by reducing the weight of the movable portion, improving the high-speed movement characteristics and the movement response. Also, the driving member of the movable part has a low output,
A small and lightweight one with low torque can be used, improving the moving characteristics and reducing the cost of the device itself.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a molded product unloading machine according to a first embodiment.

FIG. 2 is an enlarged explanatory view of a left and right traveling body.

FIG. 3 is an enlarged explanatory view of a front-rear traveling unit.

FIG. 4 is an enlarged explanatory view of a vertical lifting device.

FIG. 5 is an explanatory diagram showing a processing mode of a traveling rail, front and rear rails, and upper and lower rails.

FIG. 6 is a perspective view showing the removal operation of a molded product.

FIG. 7 is a perspective view showing a modified embodiment.

FIG. 8 is a perspective view of a modified embodiment of the molded product unloading machine shown in FIG. 7;

FIG. 9 is a perspective view showing a support structure of a front-rear traveling body in a molded product unloading machine according to a second embodiment.

[Explanation of symbols]

1-Molded product take-out machine, 3-travel frame, 5-travel rail constituting a part of travel support member, 7-travel body, 15-
Front and rear frames, 17-front and rear rails constituting part of the traveling support member, 19-front and rear traveling bodies, 31-upper and lower rails constituting part of the traveling support member, 29-upper and lower frames, 51-
Aluminum material, 53-anodized film, 55-hole, 57
―Curing resin film

Claims (4)

[Claims] 1. A molded product take-out machine for linearly moving a chuck portion in at least two directions of a front-rear direction coinciding with a center axis of the molding machine, a right-left direction and a vertical direction perpendicular to the axis, and taking out a molded product from the molding machine. , Wherein a traveling support for supporting a movable portion for moving a chuck portion is a molded product removal machine in which a fluorinated resin layer is formed on an anodic oxide film formed on a surface of an aluminum material. 2. A molded product take-out machine according to claim 1, wherein the traveling support comprises a rail for supporting the movable portion so as to be able to travel. 3. The machine according to claim 1, wherein the traveling support comprises a shaft member slidably supporting the movable portion. 4. A molded product take-out machine according to claim 1, wherein the fluorinated resin layer penetrates into the pores of the surface of the anodic oxide film to form a film.