JP3209650B2 - Work supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work supply apparatus for supplying a work to a processing section. For example, the present invention relates to a work supply device that can always supply a work to a normal position when a rubber or resin material is integrally formed with an insert material (work) or when plastic working is performed in several stages by press working.

[0002]

2. Description of the Related Art As a conventional example according to the present invention, there is an example in which an oil seal is formed by supplying a can 51 as an insert material and a rubber material 52 to a mold 50 as shown in FIG. FIG. 13 is a sectional view of the molding die 50. The molding die 50 is composed of an upper die 50b, a lower die 50a, and a middle die 50c.
Is formed on the forming surface of the molding cavity 53. In this arrangement, the shapes of both ends of the can 51 are different from each other.
A predetermined one end must be arranged at a predetermined position in the molding cavity 53. The operator has to manually set the can 51 on the molding surface of the molding cavity 53 of the mold 50 because the front and back of the can 51 must be checked.

[0003] As described above, the cans 51 are formed one by one in the molding die 50.
If the material and the dough 52 are manually set and molded, the productivity is low and the cost is high.

As an improvement, a large number of molding cavities 53 are formed in one molding die 50, and a can 51 and a dough 52 are manually set in the large number of molding cavities 53 one by one. are doing. Also, as another example,
There is also a type in which a large number of cans 51 are arranged in a stack in a cylindrical magazine, and the stacked cans 51 are supplied to the molding cavity 53 one by one from the bottom of the magazine.

[0005]

However, in the prior art as described above, each of the molding cavities 53 of the molding die 50 is required.
When the cans 51 are set manually by hand, it takes a long time, and when the worker gets tired, it is not noticed that the cans 51 are set upside down.
1 is deformed, the gap between the joining surfaces of the upper mold 50b and the lower mold 50a becomes inconvenient, and all the molded products become defective. Further, since the mold 50 is heated to 200 ° C. or higher, there is a danger in setting the can 51 manually.

Next, in a method in which the cans 51 are arranged in a cylindrical magazine, and the cans 51 are supplied from the magazine to the molding die 50, a case in which the cans 51 are reversely arranged in the magazine (abnormal arrangement) is obtained. If it exists, the can 51 is directly
0 and the can 51 properly arranged as described above.
The whole molded article including the above becomes defective. Also, the mold cavity 53 may be damaged by the can 51 arranged in reverse.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has a technical problem that a work can be arranged at a time in a multi-cavity processing section, and the arrangement can be improved. An object of the present invention is to provide a work supply apparatus that prevents a work from being set improperly.

[0008]

Means for Solving the Problems The present invention has been made to solve the above-mentioned problems, and the technical means thereof are configured as follows. That is, a guide plate formed in an arrangement corresponding to the arrangement of the processing section for supplying the work and having a restriction hole through which the work can be inserted, and a guide plate facing the guide plate and being combined so as to be relatively movable in one direction and having the restriction hole Has a locking portion formed so as not to be locked with the insertion tip of the work and formed in a position opposed to the guide plate, and has a size that allows the work to be inserted facing the regulating hole at a position relatively moved with respect to the guide plate. A base having a guide hole is provided, and the locking portion is configured to engage with the reverse insertion tip of the work and cooperate with the work to prevent relative movement of the guide plate.

[0009]

In the work supply apparatus, the works are set one by one from the supply block (manually possible) in the respective restriction holes of the guide plate. When the base is moved relative to the guide plate so that each regulating hole and each guiding hole correspond to each other, the work supported by the locking portion of the base at each regulating hole passes through the guiding hole and is processed by the processing part. Supplied under normal conditions. If there is one in which the work is placed in an abnormal state in the regulating hole, the work is locked with the locking portion, so that the base cannot move relative to the guide plate. Therefore, if there is an abnormal work, the regulating hole and the guide hole cannot be opposed to each other, so that the abnormal work is not supplied to the processing section.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of a work supply apparatus according to one embodiment of the present invention. FIG. 2 is a side view of the work supply device.

In FIGS. 1 and 2, reference numeral 1 denotes a base.
A guide plate 10 that is guided in a certain direction and relatively moves is disposed on the upper portion of the base 1. This base 1 and guide plate 10
Thus, a workpiece supply device A is configured.

As shown in FIGS. 1 and 2, the base 1 has a rectangular plane and a plate-like thickness. And
In the plane, 3 × 3 guide holes 2 are formed in the vertical and horizontal directions. The guide hole 2 penetrates the base 1 and is formed in such a shape that it can guide the insert material (work, the same applies hereinafter) 3 and set it at the position of a molding cavity (working portion, hereinafter the same) 8. . Further, the base 1 is formed with a locking portion 4 which is engaged with the reverse insertion tip 3a of the insert material 3 at a position away from the guide hole 2 by a distance that the guide plate 10 relatively moves. The locking portion 4 is formed in the concave portion 4a and has a groove 4b formed on the outer peripheral side of the concave portion 4a. Further, the base 1 is formed with an elongated hole 6 that slides with the connecting portion 13 attached to the guide plate 10. In addition, positioning pins 7 that fit into positioning holes 21 of the molding die 20 are provided at four locations on the base 1. FIG. 3 shows a cross section of the locking portion 4 according to one embodiment. The locking portion 4 has no concave portion 4a, and the insert material 3 is inserted first from the back side where the insertion material 3 is abnormal, and the reverse insertion tip 3a is inserted into the groove 4 of the locking portion 4.
b. FIG. 4 shows the same configuration as FIG. 3, but in a normal state in which the insertion tip 3b of the insert material 3 is inserted into the locking portion 4 first. In addition, the locking part 4
Depending on the shape of the insert material 3, a corresponding shape such as only the concave portion 4a or the concave portion 4a and the groove 4b is appropriately designed. The guide hole 2 is provided with an insertion chamfer 2a so that the insert material 3 can be easily inserted.

A guide plate 10 joined to the upper surface of the base 1 and configured to be relatively movable in a certain direction has guide holes 2 of the base 1.
The control holes 11 are formed in the same arrangement as that of FIG. The upper surface of the restriction hole 11 is beveled 11a in a tapered shape so that the insert material 3 can be easily inserted. Further, six mounting holes 12 shown in FIG. 5 are provided between the rows of the restriction holes 11. The coupling portion 13 is attached to the attachment hole 12. FIG. 5 shows the mounting portion 1 of the coupling portion 13 and the handle portion 14.
9 is a sectional view of FIG. The connecting portion 13 holds the base 1 and the guide plate 10 via bolts 13c so as to be relatively movable via the flange of the bush 13a and the washer 13b. In this case, the bush 13a is slidably engaged with the long hole 6 of the base 1. Instead of the connecting portion 13, guides may be provided on both sides of the base 1 so that both can be relatively moved in a certain direction.

The guide plate 10 is provided with handle portions 14 on both sides. The mounting portion 19 of the handle 14 is
As shown in FIG. 5, it has the same configuration as the coupling portion 13 and slidably engages with the long hole 6 provided in the base 1.

The handle 14 is provided with a support rod 9a provided on the base 1.
And is pulled until the bush 13a contacts one end of the long hole 6 of the base 1. A pressing spring 15 is connected to the mounting plate 16 at one end of the guide plate 10, and one end of a cylinder rod 17 is connected to the other end of the pressing spring 15. A limit switch 18 is provided on the mounting plate 16 at a position facing the tip of the cylinder rod 17.

The insert material 3 is aligned with a supply section 31 of a supply block 30 as shown in FIG. 7 via a stutter 41 by a parts feeder 40 as shown in FIG.

FIG. 8 is a sectional view of a supply block for supplying the insert material 3 to the workpiece supply device. The supply of the insert material 3 to the regulating hole 11 is performed by the supply block 30. The supply block 30 includes a supply unit 31 for stacking the insert materials 3, an actuator (not shown) for reciprocating the supply unit 31, and a guide rod 34 and a sleeve 32 for guiding the path of the supply unit 31. ing.

As shown in FIG. 7, the insert material 3 to be supplied is laminated on a supply portion 31. As shown in FIG. 1, the supply portion 31 is provided with a restriction hole 11 of the guide plate 10 (that is, both of the guide hole 2 of the base 1). 3) are provided in accordance with the same row. Since the opened lower surface of the supply unit 31 moves in the column direction with a slight gap from the surface of the guide plate 10, the insert material 3 is provided one by one from each supply unit 31 to the regulation hole 11 of each row. Will be supplied.

The movement of the supply unit 31
Is performed by sliding a sleeve 32 fixed to the guide plate 34 along a guide rod 34 fixed to the base 33, and proceeds while making a small reciprocating movement from the original position of the guide plate 10 to the right direction in the figure. This operation is repeated until the sleeve 32 comes into contact with a stopper 35 provided at the right end of the guide rod 34. When the insert material 3 laminated on the supply unit 31 is supplied to the regulating hole 11 of the guide plate 10, the supply unit 31 can be supplied by moving the supply unit 31 gradually while reciprocating with small amplitude as in the present embodiment. Even if the lamination state of the portion 31 is bad or there is a supply error with respect to a certain regulation hole 11, the supply can be performed more reliably. The above configuration is effective when the insert material 3 has flexibility. Of course, if the stacking condition can be improved by considering the structure of the supply unit 31 (for example, when two mini-cylinders at the top and bottom are provided and operated alternately to drop the lower insert material 3, This is the case of the embodiment in which the upper insert material 3 is pressed.), And the operation of the supply block may be configured to intermittently move at every pitch of the restriction hole 11.

In this embodiment, when the operation on the outward path is completed, the supply block 30 is moved straight back to the original position on the return path, but the supply block 30 is returned while being reciprocated with a small amplitude also on the return path. It is also possible.

Next, the operation will be described. First, FIGS. 1 and 4
As shown in the figure, the guide hole 2 of the base 1 and the control hole 11 of the guide plate 10 are shifted so that the control hole 11 and the locking portion 4 are in the same state, and the supply block 30 in the original position is connected to the guide plate 10.
While reciprocating with a small amplitude relative to the upper part, it is moved rightward in FIGS. 1 and 2. Thus, the insert materials 3 stacked on the supply unit 31 of the supply block 30 are supplied one by one to the regulation holes 11 of each row of the guide plate 10. However, in this state, since the regulation hole 11 of the guide plate 10 is shifted with respect to the guide hole 2 of the base 1,
As shown in FIG. 4, the insert material 3 fits into the restriction hole 11 and remains mounted on the base 1.

When the supply block 30 moves to the right end of the guide plate 10 and the supply of the insert material 3 is completed, the supply block 30 returns to the original position.

Next, the insert material 3 is inserted into all the restriction holes 11.
The work supply device A set on the workpiece is guided by a guide rail (not shown), and is moved above the molding die 20 by a moving means including a mechanism pressed by a fluid pressure cylinder. Then, at the stage where the work is stopped on the upper surface of the lower mold 22, the work supply device A is lowered onto the lower mold 22 by a vertical movement device (not shown). At this time, the positioning pin 7 of the work supply device A is
Are inserted into the positioning holes 21 provided in the, and they are combined. The state is as shown in FIGS.

In this state, when the cylinder rod 17 is operated, the base 1 moves, the guide hole 2 and the restriction hole 11 become concentric, and the insert material 3 falls, and is inserted into the molding cavity 8 of the molding die 20. Set. Next, the molding cavity 8
Is supplied with the dough and molding is performed. This cycle is repeated for each manufacturing process.

During the manufacturing process, it is impossible for the parts feeder 40 to accurately sort the front and back of the insert material 3. Therefore, when the engaging portion 4 is provided in the workpiece supply device A as in the present invention, and the abnormally inserted reverse insertion tip portion 3a is inserted forward as shown in FIG. Since the reverse insertion tip 3a engages with the groove 4b of the locking portion 4, the guide plate 10 cannot move in the moving direction, so that the tip of the cylinder rod 17 of the hydraulic cylinder compresses the holding spring 15. Therefore, it is possible to contact the limit switch 18 and operate the limit switch 18 to supply electricity to the solenoid valve and the like.

The relative movement of the workpiece supply device A may be performed by manually moving the handle 14 without using a fluid pressure cylinder or the like. In any case, in the case of a hydraulic cylinder, a signal can be issued from the limit switch 18 to the alarm means. In the case of manual operation, since the workpiece supply device A does not operate, it is easy to determine that the insert material 3 is improperly inserted. Therefore, it is necessary to remove the insert material 3 or set it to a normal set. Becomes possible.

As a result, abnormal insertion of the insert material 3 is eliminated, so that all of the 3 × 3 molded products are not defective, and the abnormal insert material 3 may damage the molding cavity 8. Absent.

FIG. 8 is a sectional view of a workpiece supply device A according to a second embodiment of the present invention. In FIG. 8, 5 × 4 guide holes 2 and locking portions 4 are formed in the base 1. The pitch between the guide hole 2 and the locking portion 4 is closer than in the case of FIG. 1, and the locking portion 4 is formed in a semi-cut shape. The handle 14 is attached to the base 1.
The elongated hole 6 that slides on the bush 13 a of the coupling portion 13 provided in the mounting portion 19 of the handle 14 is provided in the guide plate 10. The connecting portion 13 is attached to the base 1, and the long hole 6 is formed in the guide plate 10. Further, the positioning pins 7 are provided on the guide plate 10.
Other configurations are substantially the same as those of the workpiece supply device A shown in FIG. The workpiece supply device A is configured so that the base 1 moves. The configuration on the cylinder rod 17 side in FIG.

FIG. 9 is a sectional view of a main part in a state in which a workpiece supply device A and a molding die 20 are attached to each other, similar to the second embodiment of the present invention. The insert material 3 is made of a metal material, and is normally set in the regulating hole 11 of the guide plate 10 and the locking portion 4 of the base 1. When the base 1 is moved leftward in the figure by operating the cylinder rod 17 from this state, since the insert material 3 is not engaged with the locking portion 4,
The base 1 moves so that the regulating hole 11 and the guide hole 2 become concentric, and the insert material 3 is set in the molding cavity 8 of the molding die 20.

FIG. 10 is a cross-sectional view of a main part in a state where the workpiece supply device A and the molding die 20 shown in FIG. The insert material 3 is in a state of being improperly set in the regulating hole 11 of the guide plate 10 at all times. When the cylinder rod 17 is operated from this state to move the base 1 to the left in the drawing,
The base 1 does not move because the reverse insertion tip 3a of the insert material 3 is fitted into the locking portion 4, so that the cylinder rod 17 compresses the pressing spring 15 and the tip end surface contacts the limit switch 18. As a result, the cylinder rod 17
Compresses the pressing spring 15, but since the tip portion immediately contacts the limit switch 18, the limit switch 1
The solenoid valve is closed by energization from 8, and the supply of fluid pressure to the fluid pressure cylinder is stopped. In this case, a signal from the limit switch 18 can be emitted to a buzzer or a lamp to notify the operator. Therefore, an abnormal set of the insert material 3 can be found.

FIG. 11 is a cross-sectional view of a main part of a state in which the workpiece supply device A and the forming die 20 are attached, which are similar to the first embodiment of the present invention. The insert material 3 is formed in a dish shape, and is in a state where it is normally aligned with the regulating hole 11 of the guide plate 10 and the locking portion 4 of the base 1. In the case of this embodiment, the insert material 3 is suitable for a thin material formed of a material such as rubber or resin material which deforms when subjected to a strong force.

In this embodiment, the guide plate 10 is configured to move.
And is conveyed to the guide hole 2 by contacting the formation surface of the regulation hole 11 of
From this guide hole 2, it is set in the lower molding cavity 8.

FIG. 12 is a cross-sectional view of a main part in a state where the workpiece supply device A and the molding die 20 of FIG. FIG. 3 is a view showing a state in which the insert material 3 is improperly set in the restriction hole 11. When the guide plate 10 is to be moved by operating the cylinder rod 17 from this state, the concave portion 4a of the locking portion 4 is formed to a depth smaller than the thickness of the insert material 3 and has the groove 4b on the outer peripheral side. Since the insert material 3 is pushed into the locking portion 4, the guide plate 10 cannot move even if the insert material 3 is flexible such as a resin material. Therefore, the cylinder rod 17 and the limit switch 18 operate as described above with reference to FIG. 10, and an abnormal insert 3 can be found.

In the above description, the work supply apparatus of the molding apparatus has been described. However, the apparatus is not limited to this. For example, a multi-stage multi-stage press working (from a hoop material to a multi-stage The present invention can be applied to a work supply device of (a case where deep drawing is performed by pressing.).

[0036]

According to the work supply apparatus of the present invention, the necessary maximum number of restriction holes, locking portions, and guide holes are provided on the guide plate and the base in accordance with the capacity of the plurality of processing portions of the work. be able to. Therefore, it is possible to improve the working efficiency because a large number of pieces can be machined at one time, and it is not necessary to increase the cycle speed of the machining portion by the large number of pieces, thereby preventing the occurrence of defective products, It is possible to prevent the occurrence of machine failure, and at the same time, to perform safety management by heating or pressing the operator. Further, the work supply apparatus of the present invention can supply a large number of works to the processing unit at one time, and can prevent abnormal supply of the work by the function of the regulating hole and the locking part before reaching the guide hole. In addition, it is possible to effectively prevent the workpiece from being damaged due to the work set by the abnormal setting. Further, in the multi-cavity machining, there is a possibility that the entire multi-cavity may be deteriorated by an abnormal setting of one work. However, the work supply apparatus of the present invention has a restriction hole and a guide hole. Since the setting of the locking part in the intermediate process prevents abnormal setting of the work,
The effect of reliably preventing the occurrence of defective products in the whole multi-cavity can be expected.

[Brief description of the drawings]

FIG. 1 is a plan view of a workpiece supply device according to a first embodiment of the present invention.

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

FIG. 3 is a cross-sectional view of a main part related to the locking portion in a state where the work is improperly set on the locking portion of the work supply device of the first embodiment of the present invention.

FIG. 4 is a cross-sectional view of the embodiment of FIG. 3 of the present invention in a state where a work is normally set.

FIG. 5 is a cross-sectional view of a connecting portion connecting the guide plate and the base of FIG. 1;

FIG. 6 is an external view of a parts feeder for selectively supplying a workpiece according to the present invention.

FIG. 7 is a side view of a supply block for aligning a work to a work supply apparatus of the present invention.

FIG. 8 is a plan view of a workpiece supply device according to a second embodiment of the present invention.

FIG. 9 is a cross-sectional view in which the work is normally set in a combination state of the work supply device and the forming die according to the embodiment of the present invention.

10 is a cross-sectional view of the cross-sectional view of FIG. 9 of the present invention in a state where a work is improperly set.

FIG. 11 is a cross-sectional view illustrating a state in which a work is normally set in a combination state of a work supply device and a molding die according to another embodiment of the present invention.

FIG. 12 is a cross-sectional view of the cross-sectional view of FIG. 11 of the present invention in which a work is improperly set at all times;

FIG. 13 is a cross-sectional view of a state where a work is manually set on a molding die of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Base 2 ... Guide hole 2a ... Insert chamfer 3 ... Insert material (work) 3a ... Reverse insertion tip 3b ... Insert tip 4 ... Locking part 4a ... Depression 4b ... Groove 5 ... spring 6 ... long hole 7 ... positioning pin 8 ... molding cavity (working part) 9 ... bolt 9a ... support rod 10 ... guide plate 11 ... regulating hole 11a ... chamfer 12 ... Mounting hole 13 Joint 13a Bush 13b Washer 13c Bolt 14 Handle 15 Presser spring 16 Mounting plate 17 Cylinder rod 18 Limit switch 19 Mounting part 20 ...... Molding die 21 Locating hole 22 Lower die 30 Supply block 31 Supply part 32 Sleeve 33 Base 34 Guide rod 35 Upper mini-cylinder 36 Lower mini-cylinder 40 ...... Tsufida 41 ...... chute 50 ...... mold 50a ...... lower mold 50b ...... upper die 50c ...... Medium 51 ...... can 52 ...... fabric 53 ...... mold cavity A ...... feeder

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B23P 19/00 B65G 47/14 B23Q 7/00 B29C 31/04

Claims (1)

(57) [Claims] 1. A guide plate (10) formed in an arrangement corresponding to an arrangement of a processing part (8) for supplying a work and having a restriction hole (11) into which the work can be inserted, and a guide plate (10). An engaging portion (4) which is opposed to the regulating hole (11) and is formed at a position facing the regulating hole (11) so as not to engage with the insertion tip portion (3b) of the work. And a base (1) having a guide hole (2) sized to allow the work to be inserted in a position relatively moved with respect to the guide plate (10) and opposed to the regulating hole (11). The engaging portion (4) is configured to engage with the reverse insertion tip (3a) of the work to cooperate with the work and to prevent the relative movement of the guide plate (10). A work supply device.