JP2012240291A - Apparatus for removing resin molded product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To move a holding member up and down with long strokes by means of short vertical strokes so as to reduce the size and weight of the apparatus, hold the holding member to a constant attitude, and simplify the apparatus to reduce the cost.SOLUTION: First-third swing arms (25), (31), (35) are swung while vertically moving an elevating body (21) with respect to a vertical frame (17) by a first traveling member (29) that travels accompanying the drive of an electric motor (23) to move a holding member (49) provided on an arm member (47) between the mold side of a resin molding machine and an open position on the outside. A second traveling member (43) that travels accompanying the swing of the third swing arm (35) controls the attitude of the arm member (47) to be aligned with the vertical direction at all times.

Description

  The present invention relates to a resin molded product take-out machine that takes out a resin molded product from a resin molding machine.

  Conventionally, as shown in, for example, Patent Document 1, the mold position and the injection unit side of the resin molding machine are fixed to the operation side or the non-operation side of the stationary platen in the resin molding machine and coincide with the central axis of the resin molding machine. A main body frame extending between, a front and rear traveling body supported so as to move in the central axis direction relative to the main body frame, and a direction orthogonal to the central axis with respect to the front and rear traveling body, Left and right traveling bodies supported so as to move to the left and right frames extending between the non-operation side and the mold position, and a holding member that is provided on the left and right traveling bodies and holds a resin molded product, And a vertical unit that moves between upper positions spaced apart upward from the mold, and with the driving of the front and rear traveling body, the left and right traveling body, and the vertical unit, the holding member is moved in a three-dimensional direction to take out the resin molded product Resin molded product take-out machine Are known.

In the resin molding machine shown in Patent Document 1, the safety door can be opened and closed so as to cover the entire mold part on the operation side and the non-operation side of the mold part in consideration of safety during the molding operation. Installed. For this reason, in the resin molded product take-out machine shown in Patent Document 1, when removing the resin molded product from the resin molding machine, it is necessary to move over the safety door, so the holding member is moved with a long vertical stroke. Therefore, it is necessary to use a large member with a long stroke for the upper and lower unit itself. As a result, there is a problem that the resin molded product take-out machine itself becomes large and the equipment cost increases.

Also, when taking out a large resin molded product, the resin molding machine itself is large, and it is possible to secure a wide space around it, but when taking out a small resin molded product, Since the molding machine itself is small and it is necessary to increase productivity, it is necessary to arrange a large number of resin molding machines in a predetermined molding work space, and it is difficult to secure a wide space between the resin molding machines.

As a resin molded product take-out machine for a small resin molded product, for example, as shown in Patent Document 2, it is fixed to the operation side or the non-operation side of the stationary platen in the resin molding machine, and extends in the central axis direction of the resin molding machine. A slider supported to move in the direction of the central axis with respect to the main body frame, an electric motor fixed to the slider and having an axis in the direction of the central axis, and a base end portion on the rotation shaft of the electric motor 2. Description of the Related Art There is known a resin molded product take-out machine that is composed of a swing arm that is fixed and has a vertical unit attached to the tip and a holding member that is provided at the tip of the vertical unit and holds a resin molded product. .

The resin molded product take-out machine shown in Patent Document 2 is configured such that the holding unit moves over the tie bar and safety door of the resin molding machine by operating the vertical unit in the vertical direction as the turning arm rotates. doing.

However, in the resin molded product take-out machine configured as described above, it is necessary to control the rotation of the upper and lower units with the rotation of the swivel arm because the upper and lower units must always be kept vertical. For this reason, a mechanism for rotating the upper and lower units in conjunction with the turning operation of the turning arm is required, which causes a problem that the device itself becomes complicated and expensive.

Also, since the tip of the swivel arm is heavy, it is necessary to use a high-speed rotation and high-torque electric motor in order to turn the swivel arm at high speed with high responsiveness. Have the problem of becoming

JP2003-300272A JP 2003-245927 A

  The problem to be solved is that in order to lengthen the up / down stroke of the holding member so as not to interfere with the resin molding machine, it is necessary to use a large up / down unit with a long up / down stroke. It is in the point of weight. Further, in order to keep the posture of the holding member constant during the turning operation of the turning arm, it is necessary to provide the posture control member of the holding member with respect to the turning arm, and the structure is complicated and the cost is increased.

  The present invention is provided in a main body frame fixed to an upper surface of a fixed platen of a resin molding machine, an elevating body supported so as to be movable in the vertical direction with respect to the upper and lower frames provided in the main body frame, and the main body frame. A numerically controllable electric motor, a first swing arm whose base end is pivotally supported so as to coincide with an output shaft of the electric motor, a first rotating body fixed to the output shaft, and the first A first traveling member that is stretched over a second rotating body that is fixed to a first rotating shaft that is rotatably supported by a distal end portion of one swinging arm, and a base end portion that is fixed to the first rotating shaft. A second swinging arm, and a first end fixed to the other end of the second rotating shaft, which is pivotally supported by the elevating body and fixed at one end to the tip of the second swinging arm. 3 swing arms, and a disk member fixed concentrically with the second rotating shaft with respect to the lifting body, A second traveling member that is spanned by a third rotating body that is rotatably supported by the disk member and the tip of the third swing arm, an upper part is fixed to the third rotating body, and a resin molded product is provided at the lower part An arm member provided with a holding member for holding is provided, and the first to third swing arms are swung while the lift body is moved up and down with respect to the upper and lower frames by the first traveling member that travels as the electric motor is driven. The holding member provided on the arm member is moved between the mold side and the outer open position of the resin molding machine, and the arm member is moved by the second traveling member that travels as the third swinging arm swings. The most important feature is that the posture can be controlled so that it always faces the vertical direction.

  According to the present invention, the holding member can be moved up and down with a short vertical stroke, and the apparatus can be reduced in size and weight. Further, the posture of the holding member can be kept constant, and the device itself can be simplified and the cost can be reduced.

It is a whole perspective view of a resin molded product take-out machine. It is the front view which looked at FIG. 1 from the arrow A direction. It is explanatory drawing which disassembled the rocking | fluctuation mechanism. It is explanatory drawing which shows a state when a holding member moves to an upper limit position. It is explanatory drawing which shows a state at the time of a holding member moving to a molded article open position.

  A first molding member that travels as the electric motor is driven causes the first to third swing arms to swing while raising and lowering the lifting body with respect to the upper and lower frames, and a holding member provided on the arm member is used as a resin molding machine. The position of the arm member can be controlled so that the arm member is always oriented in the vertical direction by the second traveling member that is moved between the mold side and the open position on the outer side of the mold and that travels as the third swinging arm swings. This is the best mode.

The present invention will be described below with reference to the drawings showing examples.
1 to 3, a resin molded product take-out machine 3 according to the present invention is fixed to the upper surface of the operation side or the non-operation side of the stationary platen 1 in the resin molding machine. The main body frame 5 of the resin molded product take-out machine 3 extends in a longitudinal direction that coincides with the central axis of the resin molding machine, with a length reaching one mold (not shown) and the stationary platen 1 side. It consists of the length to be.

A rail 7 extending in the front-rear direction is fixed on the main body frame 5, and a movable body 9 is supported on the rail 7 so as to move in the front-rear direction. A rotating body (not shown) that constitutes a part of the moving member is rotatably supported at each end of the main body frame 5 by a toothed pulley or the like, and one of the rotating bodies is numerically controlled. An electric motor 13 constituting a part of the moving member is connected by a possible servo motor or the like. A toothed belt 15 that constitutes a part of the moving member is stretched over each rotating body, and a part of the toothed belt 15 is fixed to the movable body 9, and is movable as the electric motor 13 is driven. The body 9 is reciprocated in the front-rear direction.

As the moving member of the movable body 9, a reciprocating mechanism in which a feed screw having an axis in the longitudinal direction of the main body frame 5 and connected to an electric motor at one end is engaged with the nut portion of the movable body 9, or A known linear motor or the like may be used.

A base end portion of an upper and lower frame 17 extending in the vertical direction is fixed to the movable body 9, and a rail 19 extending in the vertical direction is fixed to the upper and lower frame 17. The lifting and lowering body 21 is supported on the rail 19 so as to move in the vertical direction.

The movable body 9 is provided with an electric motor 23 such as a numerically controllable servomotor having an axis in the front-rear direction. The output shaft of the electric motor 23 has a first rotation such as a toothed pulley. The body 26 is attached with its rotation prevented. The movable body 9 has a base end portion of the first swing arm 25 pivotally supported around the output shaft of the electric motor 23, and a distal end portion of the first swing arm 25 has A second rotating body 27 such as a toothed pulley is rotatably supported. A toothed belt 29 as a first traveling member is stretched between the first and second rotating bodies 26 and 27.

A base end portion of the second swing arm 31 is fixed to the first rotary shaft 30 fixed to the shaft center of the rotary body 27, and a distal end portion of the second swing arm 31 is attached to the lifting body 21. One end of the second rotating shaft 33 that is rotatably supported is fixed. A base end portion of the third swing arm 35 is fixed to the other end portion of the second rotating shaft 33. Further, a toothed disk member 37 is fixed at a position concentric with the second rotating shaft 33 on the elevating body 21 on the third swing arm 35 side.

A third rotating shaft 39 is rotatably supported at the tip of the third swing arm 35, and a third rotating body 41 such as a toothed pulley is provided at one end of the third rotating shaft 39. Fixed. Between the toothed disk member 37 and the third rotating body 41, a toothed belt 43 as a second traveling member is stretched. An attachment member 45 is fixed to the other end portion of the third rotating shaft 39, and an upper portion of an upper and lower arm 47 having an axis line in the vertical direction is fixed to the attachment member 45 so that the position thereof can be adjusted. The

A holding member 49 for a resin molded product (not shown) is attached to the lower part of the upper and lower arms 47. The holding member 49 is connected to a negative pressure generation source to adsorb and hold the resin molded product, an air cylinder connected to the compressed air generation source and the like to open and close the claw portion and hold the resin molded product. A gripping member (gripper) or the like is used.

Next, the resin molded product take-out operation by the resin molded product take-out machine 3 configured as described above will be described.
At the time of molding a resin molded product by the resin molding machine, the movable body 9 is moved and awaited so as to be positioned, for example, in the middle portion of the main body frame 5 in the longitudinal direction. Further, the elevating body 21 is moved and waited on the upper part of the upper and lower frames 17 in a state where the first to third swing arms 25, 31, 35 are swung so as to be perpendicular to each other, for example. (See Figure 4)

When a mold opening signal is input from the resin molding machine to the control device (not shown) of the resin molded product take-out machine 3 in accordance with the completion of the resin molding operation from the resin molding machine, the control device drives and controls the electric motor 13. Then, the movable body 9 is moved to the movable mold side of the resin molding machine, and the electric motor 23 is driven and controlled to rotate the first rotating body 26 in a required direction so that the toothed belt 29 travels. The second rotating body 27 is rotated by the running of the toothed bell 29 to swing the second swing arm 31 toward the inside of the resin molding machine.

The elevating body 21 is moved below the upper and lower frames 17 as the second swing arm 31 swings, and the third swing arm 35 is resin-molded as the second swing arm 31 swings. The holding member 49 is moved closer to the mating surface side of the movable mold by swinging inward of the machine and causing the upper and lower arms 47 to enter between the opened molds.

  At this time, the first swing arm 25 swings to the outside of the resin molding machine around the output shaft of the electric motor 23 so that the elevating body 21 can be lowered with respect to the upper and lower frames 17. Further, since the upper and lower arms 47 are provided with the toothed disk member 37 fixedly on the elevating body 21, the toothed belt with respect to the toothed disk member 37 as the second and third swing arms 31 swing. The meshing position of 43 is displaced, and the third rotating body 41 is rotated according to the amount of displacement to rotate the attachment member 45. As a result, the posture is controlled so that the upper and lower arms 47 always face the vertical direction with respect to the third swing arm 35 that swings. (See Figure 2)

When the resin molded product is protruded from the movable mold by the protruding mechanism (not shown) of the resin molding machine and held by the holding member 49 in the above state, the electric motor 13 is driven to rotate in the opposite direction. The movable body 9 is moved to the fixed platen 1 side, and the toothed belt 29 travels in the opposite direction to the second rotation by the first rotating body 26 that rotates by rotating the electric motor 23 in the opposite direction. The arm 31 is swung toward the outside of the resin molding machine.

When the second swing arm 31 is swung toward the outside of the resin molding machine, the elevating body 21 is moved upward of the upper and lower frames 17 and the third swing arm 35 is moved to the resin molding machine. The holding member 49 that swings from the inside toward the outside and holds the resin molded product is separated upward from between the molds.

At this time, the first swing arm 25 swings from the outer side to the inner side of the resin molding machine around the output shaft of the electric motor 23 to allow the lifting body 21 to rise with respect to the upper and lower frames 17. Further, since the upper and lower arms 47 are provided with the toothed disk member 37 fixedly on the elevating body 21, the teeth with respect to the toothed disk member 37 are associated with the swinging of the second and third swinging arms 31 and 35. The meshing position of the attached belt 43 is displaced, and the mounting member 45 is rotated by rotating the third rotating body 41 according to the amount of displacement. As a result, the posture is controlled so that the upper and lower arms 47 always face the vertical direction with respect to the third swing arm 35 that swings.

  Then, when the electric motor 23 is driven, the first to third swing arms 25, 31, 35 are swung vertically to move the lifting body 21 to the upper part of the upper and lower frames 17. The holding member 49 holding the product 51 is lifted to a height at which it can get over the tie bar 1a and the safety door of the resin molding machine. (See Figure 4)

When the second swing arm 31 is swung further from the vertical state to the outside of the resin molding machine by the toothed belt 29 that travels as the electric motor 23 is driven, the lift 21 is moved below the upper and lower frames 17. The third swing arm 35 is swung toward the outside of the resin molding machine, and the holding member 49 holding the resin molded product is moved to the open position side of the resin molded product.

When the second swing arm 31 is swung to the outside of the resin molding machine by the toothed belt 29 that travels as the electric motor 23 is driven, the lift 21 is moved to the lower portion of the upper and lower frames 17. The holding member 49 holding the resin molded product is positioned at the open position by the third swing arm 35 swinging to the outside of the molding machine. (See Figure 5)

At this time, the upper and lower arms 47 displace the meshing position of the toothed belt 43 with respect to the toothed disk member 37 in accordance with the swing of the second and third swing arms 31 and 35 in the same manner as described above. Correspondingly, the third rotating body 41 is rotated to rotate the attachment member 45. As a result, the posture is controlled so that the upper and lower arms 47 always face the vertical direction with respect to the third swing arm 35 that swings.

  When the holding member 49 is moved to the open position, after the holding of the resin molded product by the holding member 49 is released and the take-out operation is completed, the electric motors 13 and 23 are respectively driven to rotate in the opposite direction. Then, the movable body 9 and the elevating body 21 are moved to the standby position described above.

  In the present embodiment, the holding member 49 can be moved up and down by a long distance while shortening the moving distance of the elevating body 21 with respect to the up and down direction, and the tie bar 1a and the safety door in the resin molding machine can be reliably overcome. It can be reduced in size and weight. Further, when the holding member 49 holding the resin molded product is moved between the mold and the open position, the upper and lower arms can be taken out while being moved while controlling the posture in a vertical state.

DESCRIPTION OF SYMBOLS 1 Fixed platen 1a Tie bar 3 Resin molded product take-out machine 5 Main body frame 7 Rail 9 Movable body 13 Electric motor 15 Toothed belt 17 Vertical frame 19 Rail 21 Lifting body 23 Electric motor 25 First swing arm 26 First rotating body 27 First 2-rotor 29 toothed belt 30 as first running member first rotating shaft 31 second swinging arm 33 second rotating shaft 35 third swinging arm 37 toothed disk member 39 third rotating shaft 41 third rotating body 43 Toothed belt 45 as second traveling member Mounting member 47 Upper and lower arm 49 Holding member

Claims (4)

A main body frame fixed to the upper surface of the fixed platen of the resin molding machine;
An elevating body supported so as to be movable in the vertical direction with respect to the upper and lower frames provided in the main body frame;
A numerically controllable electric motor provided in the main body frame;
A first swing arm whose base end is pivotally supported so as to coincide with the output shaft of the electric motor;
A first rotating member fixed to the output shaft, and a first traveling member that is stretched over a second rotating member that is fixed to the first rotating shaft that is rotatably supported at the tip of the first swing arm. ,
A second swing arm whose base end is fixed to the first rotation shaft;
A third oscillating arm pivotally supported by the elevating body and having a base end fixed to the other end of the second rotating shaft, the tip of the second oscillating arm being fixed to one end;
A disk member fixed concentrically with the second rotating shaft with respect to the lifting body;
A second traveling member that is stretched over a third rotating body that is rotatably supported by the disk member and the tip of the third swing arm;
An arm member having an upper portion fixed to the third rotating body and a lower portion provided with a holding member for holding a resin molded product;
With
A first molding member that travels as the electric motor is driven causes the first to third swing arms to swing while raising and lowering the lifting body with respect to the upper and lower frames, and a holding member provided on the arm member is used as a resin molding machine. The position of the arm member can be controlled so that the arm member is always oriented in the vertical direction by the second traveling member that is moved between the mold side and the open position on the outer side of the mold and that travels as the third swinging arm swings. Resin molded product take-out machine. 2. The upper and lower frames according to claim 1, wherein the upper and lower frames are provided on a movable body supported so as to be movable in the direction of the central axis on the main body frame extending in a direction coinciding with the central axis of the resin molding machine. A resin molded product take-out machine that can reciprocate in the direction of the central axis. 2. The resin molded product take-out machine according to claim 1, wherein the first to third rotating bodies are made of toothed pulleys, and the first and second traveling members are made of toothed belts. 2. The resin molded product take-out machine according to claim 1, wherein the second traveling member is a toothed belt, and the third rotating body and the disk member are toothed pulleys around which the toothed belt is stretched.

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