JPH11292214A - Shelf filling apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To orderly arrange molded articles not desired to be stacked in layers by controlling a shelf moving device so as to put in and out a shelf board to confirm the completion of moving the shelf board then transit to the next work. SOLUTION: First, when a shelf board elevating means 40 is moved up and down to detect the lowermost end shelf by a photoelectric sensor 51 and stopped in that position, an arm 23 of a grip means 20 is turned to put a hook part at the tip of the arm 23 on a shelf board 8 placed on a shelf table 4. Subsequently, a shelf board horizontal pulling means 30 is moved to the left (backward) to draw out the shelf board 8 and place the same on a shelf board loading frame 26, and stopped in the position of the shelf board 8'. The shelf board 8 is lifted to the upper limit by a shelf board elevating means 40 to be on standby. A take-out machine 2 sequentially takes out molded articles 7 formed from an injection molding machine 1 and lines up the same to be placed on the shelf board 8. At the end of placing a fixed number of molded articles 7 on the shelf board 8, when the shelf board 8 is pushed in to a designated position of the shelf table 4, the shelf board horizontal pulling means 30 is lifted to detect the position of the next stage (just upper stage).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shelving apparatus for stacking molded articles formed by a molding machine and taken out by a take-out machine in a plurality of shelves.

[0002]

2. Description of the Related Art When loading a molded product molded by a molding machine and taken out by an unloader, depending on the molded product, if the product is randomly stacked, it is deformed. Non-stackable articles, such as when you want the articles to be oriented in the same direction, need to be arranged neatly on removable shelves. And pallet storage devices were used.

[0003] For example, a molded article loading apparatus proposed in Japanese Patent Application No. 4-214740 discloses a molded article having a flat loading surface formed by an injection molding machine. The structure is such that the sections are stacked in order from the bottom like a bridge on the horizontal shelves on both sides of a multi-stage with a stairwell.

A pallet loading device disclosed in Japanese Unexamined Patent Publication No. Hei 6-71536 is an automatic parts warehouse for automatically loading and unloading pallets on which components are loaded on a set shelf. Device.

[0005]

The one proposed in Japanese Patent Application No. 4-214740, which is similar to the conventional shelf packing device, is such that one molded product is loaded in each stage. Although the shape of the product is determined, it is a dedicated shelving device and cannot be used for molded products of other shapes. Also, Japanese Patent Laid-Open No. 6-71
The device disclosed in Japanese Patent Publication No. 536 is a stationary type device for storing stocked parts on a sturdy pallet for the purpose of a stocker for heavy objects.
It is not suitable for use as a trolley for loading and transporting molded products of an injection molding machine.

According to the present invention, when a molded article molded by a molding machine and taken out by an unloader is arranged and loaded on a plurality of shelves,
If you do not want to stack them, such as deforming them when you stack them randomly, or you want to load them in the same direction in order to automatically put them into production flow in the next process, arrange them in order. An object of the present invention is to obtain a shelving device that can be lined up and has a high storage efficiency.

[0007]

The structure of the present invention that achieves the above object has the following features. (1) In a shelving apparatus for receiving molded articles taken out from a molding machine by an unloader and storing the molded articles in order, a plurality of shelves having one side edge bent upward and the plurality of shelves are horizontally placed. A shelf having a beam or a beam to be supported, a shelf horizontal pulling means for horizontally pulling a shelf installed near the side surface of the shelf and grasped by the grasping means, and lifting and lowering each shelf with the same horizontal sliding means A shelf moving device having a shelf elevating means, a shelf position sensor provided in the shelf moving device for detecting a shelf of the shelf, and a shelf level sensor for driving the shelf elevating means. After stopping the shelves horizontal pulling means at the detected shelf position, drive the same shelves horizontal pulling means to put the shelves in and out, confirm that the shelves have been moved, and move the shelves to move to the next operation A control device for controlling the device;
It is characterized by comprising.

(2) In the shelving device described in (1), four casters with a lock function are provided at four corners at the bottom of the shelf, and a guide roller that rotates horizontally is provided at the center of the bottom. It is characterized by the following.

(3) In the shelving device described in (1) and (2), the plurality of shelves have a shape in which ends of two opposing sides are bent upward, and the shelves are arranged on both sides of the shelf. It is possible to take in and out.

(4) In the shelving device described in (1) to (3), an elongated hole is formed in the middle of a shelf guide portion provided on a shelf support beam on a side surface of the shelf, and the shelf is used for the shelf. A downward convex portion is provided on a shelf plate at a position where the shelf plate is aligned with the long hole when housed in the shelf so that the shelf plate does not shift during shelf transport by fitting the long hole and the downward convex portion. And

(5) In the shelving apparatus described in (1) to (4), a large number of through holes are formed at the same height and at the same pitch in the four rectangular cylinders forming the pillars at the four corners of the shelf. , A retaining ring that can be moved up and down on each pillar is provided integrally with the shelf support beam,
The height position of the shelf support beam can be changed by penetrating the retaining ring and the through-hole of the support of the shelf with a retaining pin having a thread and securing the same by screws.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the shelving device and its periphery, FIG. 2 is a side view of the shelving device of FIG.
1 is a plan view of the shelving device of FIG. 1, FIG. 4 is a perspective view of a shelf plate of the shelving device of FIG. 1, FIG. 5 is a perspective view showing another example of a shelf plate used in the shelving device of FIG. FIG. 6 can be used for the shelving device of FIG.
It is a perspective view which shows the structure of the other example of the shelf in which the space | interval of a shelf is variable, and FIG. 7 is sectional drawing which shows the shelf fixed structure of the shelf of FIG.

[First Embodiment] In FIG. 1, reference numeral 1 denotes an injection molding machine, and reference numeral 2 denotes a take-out machine that takes out a molded product 7 from the injection molding machine 1 and transfers it to a shelving device. This unloader 2
Is composed of a hand-rotating robot having three sets of orthogonal arms. Reference numeral 5 denotes a towing vehicle, and reference numeral 6 denotes a guide rail for transporting the shelf 4 pulled by the towing vehicle 5 to the next step.

The shelving device can be roughly divided into shelves moving device 3
And a shelf 4 on which a plurality of shelves 8 are placed.

The shelf moving device 3 is installed near the rear side of the shelf 4, takes out the shelf 8 from the shelf 4, receives the molded product 7, and returns it to the shelf 4. Grasping means 20 for grasping
The horizontal pulling means 30 for horizontally pulling the shelf 8 gripped by the grasping means 20 and the shelf lifting means 40 for vertically moving the shelf 8 with the horizontal pulling means 30.

Each unit will be described in detail. The shelf 4 has a frame 14 on which beams 14 for supporting a plurality of horizontal shelves 8 are provided. It has a long hole 14a in the middle. Shelf guides 15 and 16 for guiding the shelf 8 when the shelf 8 is taken in and out of the support beam 14,
17 are provided for each pair. The shelf 8 has, on one side, an edge 8a whose end is bent upward at a right angle. When the shelf 8 is accommodated in the shelf 4, the slot 1 in the guide portion of the shelf is provided.
A downwardly protruding portion 8b is provided at a position corresponding to 4a so that the shelf plate 8 does not shift during conveyance (see FIG. 4).

At the four corners at the bottom of the shelf 4, four casters 12 with a locking function, and a guide device 13 having a pair of left and right guide rollers 13a that rotate horizontally at the center of the bottom are mounted. The device 13 is guided by the guide rail 6 when the shelf 4 is pulled by the towing vehicle 5 and transported to the next step.

Instead of attaching the casters 12 and the guide devices 13 to the shelf 4, the shelf may be moved by a conveyor or the like.

The main body of the grasping means 20 for grasping the shelf 8 is a moving body 21. A rotating actuator 22 is attached to the moving body 21. By the operation of the rotating actuator 22, the arm 23 can be rotated 90 degrees. Further, the moving body 21 can slide forward and backward (left and right in FIG. 2) on a guide rail 27 attached to the shelf board mounting frame 26 via a linear bearing 28. When the grasping means 20 rotates the arm 23 at the position indicated by the solid line in FIG. 2, the hook at the tip of the arm 23 is hooked inside the edge 8a of the shelf 8 placed on the shelf 4 and fixed to the moving body 21. Presser plate 24
Presses the edge 8a of the shelf 8 so as to sandwich it from the rear side,
The shelf 8 is fixed. The grasping means 20 is provided symmetrically with respect to the shelf mounting frame 26.

The shelf horizontal pulling means 30 is means for moving the grasping means 20 back and forth, and is provided on both sides of the shelf mounting frame 26. The motor with encoder 31 attached to the shelf mounting frame 26 is connected to a sprocket 33 via a chain 32.
And the chain 34 is rotated. The chain 34 rotates a symmetrically positioned chain 38 via a sprocket 37, a shaft 36, and a sprocket 39. Chain 34
And the chain 38 are each provided with a chain attachment 35.
The protrusions 25 provided on the moving body 21 of the grasping means 20 are engaged with the chain attachment 35, and the grasping means 20 on both sides move in the same direction in synchronization.
The position indicated by the solid line in FIG. 2 indicates a state in which the grasping means 20 is holding the shelf plate 8, and the position indicated by the two-dot chain line in FIG. 2 indicates that the chain 34 and the chain 38 rotate and move to the left. 2 shows a state in which the molded product 7 can be placed. Thereafter, the grasping means 20 moves in the opposite direction, and the shelf 8 on which the molded product 7 is placed is placed.
Into the shelf 4.

The shelf board raising / lowering means 40 is based on an upright frame 41 installed on the ground, and
6 is means for raising and lowering the vertically moving frame 42 to which 6 is attached. Along a guide rail 44 laid vertically on the standing frame 41, a vertically moving frame 42 is installed via a linear bearing 43 so as to be vertically movable. A pair of chains 45 suspends the vertically movable frame 42,
A pair of sprockets 46 and an encoder-equipped motor 48 wind and drive the chain 45. Vertical movement frame 42
A pair of balance weights 47 is hung at the opposite end of the chain 45 connected to the vertical movement frame 42 to balance the weights of the vertically movable frame 42 and the components attached thereto, thereby reducing the driving torque of the motor 48. .

Reference numeral 51 denotes a light source built-in photoelectric sensor mounted on the shelf mounting frame 26. The photoelectric sensor 51 senses reflected light from a reflecting mirror 52 provided on each shelf of the shelf, and detects the reflected light. Can be detected.

The shelves moving device 3 drives the shelves elevating means 40 by means of a control device (not shown), stops the shelves horizontal pulling means 30 at the shelf position detected by the photoelectric sensor 51, To move the shelf 8 in and out of the shelf 4,
Is controlled so as to confirm the completion of the movement and move to the next operation.

The operation of the shelving device including the shelf moving device 3 and the shelf 4 will be described below. First, the shelf 4 is pulled by the towing vehicle 5 and stopped at a predetermined position, and the casters 12 of the shelf 4 are locked.

Next, the following operations are performed in accordance with a control program provided in a control device (not shown).

First, the shelf board lifting / lowering means 40 moves up and down,
When the photoelectric sensor 51 detects the lowermost shelf and stops at that position, the arm 23 of the grasping means 20 rotates, and the hook at the tip of the arm 23 is hooked on the shelf 8 placed on the shelf 4. Next, the shelf horizontal pulling means 30 moves to the left (rearward) in FIG. 2, pulls out the shelf 8 and places it on the shelf mounting frame 26, and stops at the position of the shelf 8 'indicated by the two-dot chain line. The shelf board mounting frame 26 on which the shelf board 8 is placed is raised to the upper limit by the shelf board elevating means 40, and stands by. The take-out machine 2 takes out the molded articles 7 from the injection molding machine 1 one after another, and
6 and placed on the shelf 8 above.

When the fixed number of molded articles 7 has been placed on the shelf 8 (by a signal from the control unit of the injection molding machine 1 or the unloading machine 2), the shelf lifting means 40 descends to return the shelf 4 to its original position. Shelf 8
And the shelf horizontal pulling means 30 pushes the shelf 8 into the shelf 4 to a predetermined position via the grasping means 20, and then the shelf horizontal pulling means 30 is raised by the shelf lifting means 40. Then, the position sensor 51 detects the position of the next stage (the stage immediately above) of the shelf 4, stops the elevating means 40, and repeats the above operation.

When the loading of the molded products 7 on the uppermost shelf of the shelf 4 is completed and the shelving is completed, the control of a controller (not shown) is once completed, and the casters 12 of the shelf 4 are unlocked. The shelves 4 full of molded products are pulled by a towing vehicle 5 and carried to the next step.

[Second Embodiment] The shelf 5 shown in FIG.
Numeral 8 is a modification of the shape of the shelf 8 described with reference to FIGS. 1 to 3, in which an edge 58a is formed by bending the ends of two opposing sides upward at right angles. The shelf plate 58 can be taken in and out from both front and rear sides of the shelf 4. The structural function of the shelf 4 is the same as described above. 58b is a downward convex portion 8 in FIG.
The downward convex part corresponding to b is shown.

[Third Embodiment] In the third embodiment shown in FIGS. 6 and 7, a large number of square pillars 55 at the four corners constituting the frame 11 of the above-mentioned shelf 4 are arranged at the same height and at the same pitch. And a vertically movable stopper ring 56b is provided integrally with the beam 56 supporting the shelf plate, and a stopper pin 57 with a screw is used to form the stopper ring 56b and the supporting column 5 of the shelf.
5 and is screwed into the through hole 55a. In the shelf of this configuration, the height position of the beam 56 can be changed according to the height of the molded product to be shelved. The structural functions of the shelf other than those described above are the same as those of the shelf 4 described above. Reference numeral 56a denotes a long hole corresponding to the long hole 14a in FIG.

The present invention is not limited to the above embodiments,
It goes without saying that various changes can be made without departing from the spirit of the present invention.

[0032]

According to the first aspect of the present invention, a plurality of shelves having one side edge bent upward in a shelving device for receiving molded articles taken out from a molding machine by an unloader and storing the articles in order. A board, a shelf having a bar or a beam for horizontally supporting the plurality of shelves, and a shelf board laterally traversing means for laterally traversing the shelves installed near the sides of the shelf and grasped by the grasping means. A shelf moving device having a shelf elevating means for elevating and lowering the shelves for each of the shelves horizontal pulling means; a shelf position sensor provided in the shelf moving device for detecting a shelf of the shelf; After driving the means and stopping the shelf horizontal pulling means at the shelf position detected by the shelf position sensor, driving the same shelf horizontal pulling means, taking out the shelf and confirming the completion of the movement of the shelf. And a control device for controlling the same-shelf moving device so as to move to the next operation. Can be stacked a plurality of molded articles to each stage of the platform, it is also stored in the shape different moldings.
Further, since it is lightweight and has a simple structure, the cost is low, and it is suitable for the use of a trolley for loading and transporting molded articles such as an injection molding machine. In addition, when molding products molded by an injection molding machine or the like and taken out by an unloader are stacked on a shelf board, they can be arranged in an orderly manner. There is no. Also, since the molded products can be stacked in the same direction without stacking them, they can be used in the production process in the next process of the destination.
It is easy to automate.

According to the second aspect of the present invention, the bottom 4 of the shelf
Since four casters with a lock function are provided at the corners and a guide roller that rotates horizontally at the center of the bottom is provided, the transportation to the next step is simplified.

According to the third aspect of the present invention, the plurality of shelves are formed by bending the ends of two opposing sides upward so that shelves can be taken in and out from both sides of the shelves. Therefore, shelves can be taken in and out from both sides of the shelf.

According to the fourth aspect of the present invention, a long hole is formed in the middle of the shelf guide portion provided on the shelf support beam on the side of the shelf, and when the shelf is stored in the shelf, the long hole is formed. A downwardly convex portion is provided on the shelf plate at a position matching with the slot, and the long plate and the downwardly convex portion are fitted so that the shelf plate does not shift during the transport of the shelf, so that the molded product can be smoothly moved. Transport is achieved.

According to the fifth aspect of the present invention, a large number of through holes are formed at the same height and at equal pitches in the four rectangular cylinders constituting the four pillars at the four corners of the shelf, and each pillar can be moved up and down. The height position of the shelf support beam can be changed by providing a stop ring integrally with the shelf support beam and screwing the stop ring and the through hole of the support of the shelf with a stop pin with a screw. Since the distance between the shelves can be adjusted according to the height of the molded product, the storage efficiency is high.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a shelf packing device and its periphery according to a first embodiment of the present invention.

FIG. 2 is a side view of the shelf device of FIG. 1;

FIG. 3 is a plan view of the shelf device of FIG. 1;

FIG. 4 is a perspective view of a shelf plate of the shelf device of FIG. 1;

FIG. 5 is a perspective view showing another example of the shelf board according to the second embodiment of the present invention.

FIG. 6 is a perspective view showing a configuration of an example of a shelf according to a third embodiment of the present invention in which the height of a shelf is variable.

FIG. 7 is a sectional view showing a shelf plate fixing structure of the shelf of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Injection molding machine 2 Unloader 3 Shelf moving device 4 Shelf 7 Molded product 8 Shelf 8b, 58b Downward convex part 11 Frame 12 Caster 13 Guide wheel 14 Beam 14a, 56a Long hole 20 Grasping means 30 Shelf board horizontal pulling means Reference Signs List 40 shelf board lifting / lowering means 51 photoelectric sensor 55 support 56 beam 57 screwed stop pin 58 shelf

Claims (5)

[Claims] 1. A shelving device for receiving molded articles taken out by a take-out machine from a molding machine and storing the molded articles in order, comprising: a plurality of shelves having one side end bent upward; A shelf having a bar or a beam to be supported horizontally, a shelf horizontal pulling means for horizontally pulling a shelf installed near a side surface of the shelf and grasped by grasping means, and a shelf for each shelf horizontal pulling means A shelf moving device having a shelf elevating means for elevating the shelf, a shelf position sensor provided in the shelf moving device for detecting a shelf of the shelf, and the shelf position by driving the shelf elevating means After stopping the shelves horizontal pulling means at the shelf level detected by the sensor, the shelves horizontal pulling means are driven to take out the shelves, confirm that the shelves have been completely moved, and move on to the next operation. And a control device that controls the shelf moving device. 2. The shelving device according to claim 1, wherein
A shelving device, comprising: four casters with a lock function at four corners at the bottom of a shelf; and a guide roller that rotates horizontally at the center of the bottom. 3. The shelving apparatus according to claim 1, wherein the plurality of shelves are formed such that ends of two opposing sides are bent upward, and shelves can be taken in and out from both side surfaces of the shelves. A shelving device, characterized in that: 4. The shelving apparatus according to claim 1, wherein an elongated hole is formed in the middle of a shelf guide portion provided on a shelf support beam on the side of the shelf, and the shelf is accommodated in the shelf. A shelf that is provided with a downwardly projecting portion at a position matching the elongated hole when the shelf is conveyed by the fitting of the elongated hole and the downwardly projecting portion. Filling device. 5. A shelving apparatus according to claim 1, wherein a plurality of through-holes are formed at the same height and at equal pitches in four square cylinders forming the pillars at the four corners of the shelf. In the above, a stop ring movable up and down is provided integrally with the shelf support beam, and the stop ring and the shelf base are pierced into the through holes of the support posts of the shelf with a stop pin having a screw, and are screwed, thereby securing the shelf support beam. A shelving device characterized in that the height position can be changed.