JP6895205B2 - Sizing device - Google Patents

Description

The present invention relates to a sizing device.

The sizing device of Patent Document 1 is known as a device for correcting the dimensions of a sintered body in the process of manufacturing a sintered part. This sizing device is provided with a plurality of workpiece insertion holes for accommodating sintered parts, and includes a turntable that rotates about a rotation axis. The turntable moves the work insertion hole in the order of the work insertion part, the press part (above the die), and the work discharge part by its rotation. Then, the sintered part to be sizing is taken into the work insertion hole at the work loading part, conveyed to the press part, and pressed by the upper and lower punches inserted into the inside of the die for sizing. The sintered part after sizing is taken into the work insertion hole again and conveyed to the work discharge part.

Japanese Unexamined Patent Publication No. 2011-080113

The sizing device of the present disclosure is
A plurality of storage holes for storing the work are provided, and the work in each storage hole is pierced through the die while the storage holes rotate around the rotation axis and move from the work supply position to the work removal position. A sizing device equipped with a turntable for transporting to
A plurality of identification information holding units provided in the vicinity of the respective storage holes in the turntable and corresponding to the respective storage holes,
A supply-side input unit for inputting a tag code into the identification information holding unit corresponding to the storage hole at the work supply position,
A take-out side reading unit that reads a tag code input to the identification information holding unit corresponding to the storage hole at the work take-out position, and a take-out side reading unit.
A storage unit that stores a collation tag code obtained by calculating the rotation position information of the storage hole from the work supply position to the work removal position in advance.
The tag code read by the take-out side reading unit is collated with the collation tag code, and a quality determination unit for determining the quality of the work from the matching of both tag codes is provided.

It is a schematic block diagram of the sizing apparatus which concerns on embodiment.

[Issues to be solved by this disclosure]
Normally, when the turntable stops in the middle of rotation due to a defect, all the workpieces on the turntable are collected without being conveyed downstream of the sizing device. When restarting the turntable, the turntable is manually moved from its stop position to an appropriate position, but there is a risk of moving the turntable to an inappropriate position due to an erroneous operation. If the product is restarted while being moved to an inappropriate position, an unsized product that has not been sized or a product that has been sized multiple times is produced. However, although it is possible to suppress the transportation of the unsized product or the product that has been sized a plurality of times to the downstream, the work of collecting the work on the turntable every time the turntable stops in the middle of rotation is very complicated.

Therefore, one of the purposes of the present invention is to provide a sizing device capable of reducing the collection work of the work on the turntable while suppressing the downstream transportation of the unsized product or the sizing product multiple times.

[Effect of the present disclosure]
The sizing device of the present disclosure can reduce the work of collecting the workpiece on the turntable while suppressing the downstream transportation of the unsized product or the sizing product multiple times.

<< Explanation of Embodiments of the Present Invention >>
First, embodiments of the present invention will be listed and described.

(1) The sizing device according to one aspect of the present invention is
A plurality of storage holes for storing the work are provided, and the work in each storage hole is pierced through the die while the storage holes rotate around the rotation axis and move from the work supply position to the work removal position. A sizing device equipped with a turntable for transporting to
A plurality of identification information holding units provided in the vicinity of the respective storage holes in the turntable and corresponding to the respective storage holes,
A supply-side input unit for inputting a tag code into the identification information holding unit corresponding to the storage hole at the work supply position,
A take-out side reading unit that reads a tag code input to the identification information holding unit corresponding to the storage hole at the work take-out position, and a take-out side reading unit.
A storage unit that stores a collation tag code obtained by calculating the rotation position information of the storage hole from the work supply position to the work removal position in advance.
The tag code read by the take-out side reading unit is collated with the collation tag code, and a quality determination unit for determining the quality of the work from the matching of both tag codes is provided.

According to the above configuration, it is possible to reduce the work of collecting the workpiece on the turntable while suppressing the transport of the unsized unsized product or the sizing product that has been sized a plurality of times to the downstream of the sizing device. It is not necessary to collect the work on the turntable every time the turntable stops in the middle of rotation, and the work on the turntable is collected when the judgment is either "match" or "mismatch". Because it is good. Unsized products and multiple times sized products are included on the turntable when both tag codes are either "matched" or "mismatched".

(2) As one form of the above sizing device,
A die set having the die and upper and lower punches that are inserted into the through hole of the die and press the work in the through hole is provided.
It can be mentioned that the turntable is provided not on the press main body side having the punch drive mechanism for driving the upper and lower punches, but on the die set side.

According to the above configuration, the turntable can be treated as a die set integrated with the die and the upper and lower punches.

<< Details of Embodiments of the present invention >>
Details of the embodiments of the present invention will be described below with reference to the drawings.

[Sizing device]
The sizing device 1 according to the embodiment is a device that corrects (sizing) the dimensions of the sintered body (work W) conveyed by the turntable 2. The turntable 2 is provided with a plurality of storage holes 21h for storing the work W, and each storage hole 21h rotates about the rotation axis Cr while each storage hole 21h moves from the work supply position F to the work removal position E. The work W in 21h is conveyed to the through hole 31h of the die 31 provided at the work forming position S. The work W conveyed into the through hole 31h of the die 31 is pressed by upper and lower punches (not shown) inserted into the through hole 31h of the die 31 to correct the dimensions. One of the features of the sizing device 1 is a plurality of identification information holding units 22 corresponding to each storage hole 21h, a supply side input unit 4 for inputting a tag code into each identification information holding unit 22, and an input tag code. The point is that the take-out side reading unit 5 for reading the work W and the information processing unit 6 for determining the quality of the work W are provided. Hereinafter, the work W to be sizing will be described, and then the details of each configuration of the sizing device will be described with reference to FIG. 1 as appropriate. FIG. 1 shows a view of the upper surface of the turntable 2 as viewed from its rotation axis Cr direction. That is, the upper punch is arranged on the front side of the paper surface of FIG. 1, and the lower punch is arranged on the back side of the paper surface of FIG.

[work]
A typical example of the work W is a metal sintered body obtained by molding a raw material powder mainly composed of a metal powder into a predetermined shape with a pressing device and sintering the obtained powder molded body. Examples of the metal powder include iron-based powder and aluminum-based powder. The shape of the sintered body is a shape along the final shape, and examples thereof include various shapes such as a columnar shape and a tubular shape in which a shaft hole is formed in the center.

[Turntable]
The turntable 2 is provided with a plurality of storage holes 21h for storing the work W, and rotates about the rotation axis Cr. As a result, the work W before sizing, which is supplied from the outside and received in the storage hole 21h at the work supply position F, is conveyed from the work supply position F to the die 31 at the work forming position S, and the through hole 31h (cavity) of the die 31 is conveyed. The work W sized in) is conveyed from the work forming position S to the work taking-out position E. The work W in the storage hole 21h conveyed to the work take-out position E is discharged to the outside of the turntable 2. The turntable 2 is a disk-shaped member, and a plurality of identification information holding portions 22 corresponding to the respective storage holes 21h are provided in the vicinity of the respective storage holes 21h.

(Storage hole)
The storage hole 21h is a hole for storing the work W. Each storage hole 21h of this example is fitted with a work holding portion (not shown) that holds the work W, which will be described later. The shape of each storage hole 21h is circular. The diameter of each storage hole 21h is the same and is larger than the diameter of the maximum circle containing the work W. The number of storage holes 21h can be appropriately selected, and is set to 8 here. The plurality of storage holes 21h are arranged at equal intervals on the circumference coaxial with the rotation axis Cr of the turntable 2.

The storage holes 21h of the work supply position F and the work removal position E are adjacent to each other, and the storage holes 21h of the work supply position F are located on the front side in the rotation direction of the turntable 2 with respect to the storage holes 21h of the work removal position E. To do. One of the storage holes 21h of the work supply position F or the work removal position E may be positioned so as to face the die 31 with the rotation axis Cr of the turntable 2 interposed therebetween. Is located at a position facing the die 31 with the rotation axis Cr of the turntable 2 interposed therebetween. That is, assuming that the basic rotation angle (45 ° in this case) described later is one rotation unit, the work W in the storage hole 21h of the work supply position F is rotated four times by the turntable 2 from the work supply position F (180 in total). (° rotation), it is conveyed to the die 31, and when the turntable 2 rotates 3 times from the position of the die 31 (the turntable 2 rotates 7 times from the work supply position F (total rotation of 315 °)), it is conveyed to the work removal position E. To. The storage hole 21h at the work take-out position E moves to the work supply position F when the turntable 2 rotates once from the work take-out position E (turntable 2 rotates eight times from the work supply position F (total 360 ° rotation)). To do.

The work holding portion is provided with an insertion hole according to the outer shape of the work W, and includes an indenter (eg, a ball plunger, etc.) that projects from the inner peripheral surface of the insertion hole toward the internal space of the insertion hole to hold the work W. Things can be mentioned. A work holding portion having a known configuration can be used (see Patent Document 1). If the work holding portion is attached to and detached from each storage hole, a single turntable 2 can be commonly used for the work W having various shapes.

(Identification information holding unit)
The identification information holding unit 22 holds a tag code. The number of the identification information holding units 22 is the same as the number of the storage holes 21h, and here, the number is eight. Examples of the type of the identification information holding unit 22 include an IC tag in which a tag code can be written, overwritten, and read by non-contact (wireless communication). The type of the tag code is not particularly limited as long as the identification information holding units 22 can be distinguished from each other, and examples thereof include numbers and alphabets. If it is a number or an alphabet, it is easy to determine the order in which each identification information holding unit 22 holds the tag code. The location where each identification information holding unit 22 is arranged is in the vicinity of each storage hole 21h in the turntable 2. Here, the arrangement position of each identification information holding unit 22 is the outer peripheral edge of the turntable 2 between the storage holes 21h. The identification information holding unit 22 corresponding to each storage hole 21h is located behind each storage hole 21h in the rotation direction.

The turntable 2 is rotated by a table drive mechanism (not shown), and the rotation direction may be either clockwise or counterclockwise, and this example is counterclockwise as shown by a white arrow. The turntable 2 of this example includes a connection base portion 25 connected to a table drive mechanism. The connection base portion 25 is provided coaxially with the rotation axis Cr of the turntable 2. The basic rotation angle of the turntable 2 can be appropriately selected according to the number of storage holes 21h and the arrangement form. The basic rotation angle refers to a central angle composed of the center of each adjacent storage hole 21h and the center of the turntable 2, and is indicated by "360 ° / (number of storage holes 21h)". In this example, since the eight storage holes 21h are arranged at equal intervals, the basic rotation angle of the turntable 2 is 45 °. That is, the turntable 2 rotates counterclockwise by 45 °. The turntable 2 pauses when rotated by 45 °.

As the table drive mechanism, rotary actuators having various configurations used for rotating the index table can be used. The table drive mechanism of this example includes an index device (commercially available, not shown) including a roller gear cam mechanism. In addition, an index device provided with a parallel cam mechanism may be used. The roller gear cam mechanism of this example is configured so that the driven vehicle on the secondary side rotates 45 ° while the prime mover on the primary side rotates 360 °. The center of rotation of the driven vehicle is provided coaxially with the rotation axis Cr of the turntable 2. A power source for driving the index device (not shown, such as a motor for rotating a motor vehicle in this example) is provided in a press body described later.

The work W can be transported from the outside of the turntable 2 to the storage hole 21h at the work supply position F by gripping the work W with a manipulator such as a robot hand (not shown). In addition, the work W may be attracted by an electromagnet, a vacuum pad, or the like. It is preferable to provide a supply transport path (not shown) such as a belt conveyor that runs near the outside of the work supply position F and conveys the work W. Then, the work W can be continuously supplied.

To convey the work W from the storage hole 21h at the work forming position S to the die 31, the work W is dropped from the storage hole 21h at the work forming position S toward the cavity formed by the die 31 and the lower punch (not shown). Do it by letting. This drop may be performed by pressing with an upper punch. The work W after sizing is pulled up from the die 31 by being pushed up by the lower punch and is stored again in the storage hole 21h at the work forming position S.

The work W can be discharged from the storage hole 21h at the work take-out position E to the outside of the turntable 2 by gripping the work W with a manipulator such as a robot hand (not shown). In addition, the work W can be dropped from the storage hole 21h below the storage hole 21h or sucked from above the storage hole 21h (not shown). When dropping the work, it is preferable to provide a discharge transport path such as a belt conveyor that runs and transports the work W below the storage hole 21h at the work removal position E. Further, if a slide (not shown) or the like on which the work W slides down from the storage hole 21h toward the belt conveyor is provided, the work W can be smoothly discharged from the storage hole 21h. Further, in order to make it easier to drop the work W, a pressing device (not shown) that pushes the work W from above may be separately provided.

The turntable 2 may be provided on the die set 3 side including the die 31 and the upper and lower punches, or may be provided on the press main body side (not shown) having a punch drive mechanism for driving the upper and lower punches. May be good. If the turntable 2 is provided not on the press body side but on the die set 3 side, the turntable 2 can be handled as a die set 3 integrated with the die 31 and the upper and lower punches. Therefore, the work holding portion can be attached to the turntable 2 attached to the die set 3 by the external setup, and the indenter (ball plunger or the like) for holding the work W can be adjusted (replaced). As the punch drive mechanism, various mechanisms capable of reciprocating the upper and lower punches can be used, and for example, a hydraulic ram cylinder or the like can be used. The press body includes a power source (not shown) such as a motor that operates a pump that flows hydraulic oil in a hydraulic ram cylinder.

The turntable 2 of this example is detachably provided on the die set 3. As a result, it can be handled as an integral assembly (die set 3) with the die 31 and the upper and lower punches. Therefore, the turntable 2 can be attached (replaced) to the die set 3 by the external setup. Specifically, the die set 3 includes a die 31 and a die plate 35 for holding the die in addition to the upper and lower punches, and the turntable 2 is mounted on the upper portion of the die plate 35. The die plate 35 supports approximately half of the lower surface of the turntable 2, has a semicircular portion having a peripheral edge along the circular peripheral edge of the turntable 2, and supports the other half, and has a rectangular shape larger than the turntable 2. It has a part of. The rectangular portion is provided with an arrangement area for the die 31. The arrangement area of the die 31 is provided with punch insertion holes (not shown) that penetrate vertically so that the upper punch and the lower punch can be inserted into the through holes 31h of the die 31.

[Supply side input section]
The supply side input unit 4 inputs the tag code to the identification information holding unit 22 corresponding to the storage hole 21h of the work supply position F. Examples of the type of the supply side input unit 4 correspond to the type of the identification information holding unit 22, and here, the supply side input unit 4 can use a non-contact (wireless communication) type IC tag reader / writer. The location of the supply-side input unit 4 is outside the turntable 2. The tag code input by the supply side input unit 4 is, for example, a number consecutive from "1", a number (1 to 8) equal to the number of the identification information holding units 22 (8 in this case), and an alphabet (A to H). ). The tag code input to the identification information holding unit 22 by the supply side input unit 4 is used for the collation tag code stored in the storage unit 61 of the information processing unit 6 described later.

[Reading unit on the take-out side]
The take-out side reading unit 5 reads the tag code input to the identification information holding unit 22 corresponding to the storage hole 21h at the work taking-out position E. Similar to the supply side input unit 4, the type of the take-out side reading unit 5 may be one according to the type of the identification information holding unit 22. Here, an IC tag reader / writer can be used as the take-out side reading unit 5. The location of the take-out side reading unit 5 is the outside of the turntable 2 as in the supply-side input unit 4. The tag code read from the identification information holding unit 22 by the extraction side reading unit 5 is used for the determination by the quality determination unit 62 of the information processing unit 6 described later.

[Information Processing Department]
The information processing unit 6 includes a storage unit 61 and a pass / fail determination unit 62. As the information processing unit 6, a computer including a processor that executes a determination procedure described later can be used.

(Memory)
The storage unit 61 stores the collation tag code obtained by calculating the rotation position information of the storage hole 21h from the work supply position F to the work removal position E. The rotation position information of the storage holes 21h can be obtained by the number of storage holes 21h or the like. For example, when the total rotation angle (315 °) of the basic rotation angle (45 °) or the basic rotation angle is set as one rotation unit. The total number of rotations (7 times) can be mentioned. That is, the collation tag code is a tag code input to the identification information holding unit 22 by the supply side input unit 4, and when it is assumed that the turntable 2 rotates appropriately (when it is rotated by 315 ° (7 times)). ) Is a tag code to be read by the take-out side reading unit 5.

(Good / bad judgment unit)
The quality determination unit 62 collates the tag code read by the extraction side reading unit 5 with the collation tag code, and determines the quality of the work W from the matching of both tag codes. When the judgment is "good", it means that the rotation of the turntable 2 is appropriate. That is, it means that the work W is conveyed from the work supply position F to the work take-out position E in an appropriate order. When the judgment is "bad", it means that the turntable 2 is not rotated properly. That is, it means that the work W is conveyed from the work supply position F to the work take-out position E in an improper order. Here, the quality determination unit 62 determines "good" when both tag codes match, and determines "bad" when they do not match.

For example, the storage hole 21h of the work supply position F was rotated by 45 ° in order from 0 ° (work supply position F) to 315 ° (work take-out position E) without causing any trouble in the turntable 2 and without stopping in the middle of rotation. In that case, since both tag codes match, the judgment is "good". Even if the turntable 2 stops in the middle of rotation due to a problem, if the stopped turntable 2 is manually moved to an appropriate position and the turntable 2 is restarted, both tag codes will match, so the judgment will be made. It becomes "good". If the turntable 2 is restarted by manually moving it to an inappropriate position, both tag codes will not match, and the judgment will be "bad". Problems that the turntable 2 stops in the middle of rotation include, for example, foreign matter getting caught in the table drive mechanism.

By judging the quality, it is possible to reduce the work of collecting the work W on the turntable 2 while suppressing the downstream transfer of the unsized product that has not been sized or the product that has been sized multiple times to the downstream of the sizing device 1. .. This is because it is not necessary to collect the work W on the turntable 2 when the judgment is "good", and the work W on the turntable 2 may be collected when the judgment is "bad". .. That is, it is not necessary to collect all the work W on the turntable 2 every time the turntable 2 stops in the middle of rotation. The unsized product and the multiple sizing product are included on the turntable 2 when the determination is "defective". When the turntable 2 is stopped in the middle of rotation, if the turntable 2 is advanced forward in the rotation direction from the appropriate position, an unsized product is produced and the turntable 2 is returned to the rear in the rotation direction from the appropriate position. In the case, the sizing product is produced multiple times. The details of the determination procedure will be described later.

Further, when the measured value of the pressing force by the punch drive mechanism for driving the upper and lower punches is outside the set range of the punch drive mechanism (exceeding the set range or less than the set range), the information processing unit 6 determines that the pressure is "defective". It is preferable to provide a shortage determination unit. If this excess / deficiency determination unit is provided, it is possible to prevent the sizing pressure excess product that is excessively pressurized by the upper and lower punches and the sizing pressure insufficient product that is underpressurized by the upper and lower punches from being transported downstream. , The work of collecting the work W can be reduced. Similar to the pass / fail determination unit 62, it is not necessary to collect all the work W on the turntable 2 every time the turntable 2 stops in the middle of rotation, and it is determined that the work W on the turntable 2 is collected. This is because it is sufficient when is "bad". The product with excess sizing pressure and the product with insufficient sizing pressure are produced, for example, by increasing or decreasing the volume of the work W. The reason is as follows. When sizing is performed by a mechanical press, the lower limit position of the upper punch is determined by the mechanism. When sizing is performed by a hydraulic press, a punch position control method is adopted, and the lower limit position of the upper punch is also determined. That is, regardless of the sizing press method, the lower limit position of the upper punch is usually determined. Therefore, if the volume of the work W is excessive, a product with excess sizing pressure is produced, and if the volume of the work W is too small, a product with insufficient sizing pressure is produced.

It is preferable that the information processing unit 6 includes a rotation control unit (not shown) that commands the table drive mechanism to stop the rotation of the turntable 2 based on the determination of the quality determination unit 62. Here, the rotation control unit issues a command to stop the rotation of the turntable 2 when the judgment of the quality determination unit 62 is “defective”. Further, it is preferable that the rotation control unit instructs the table drive mechanism to stop the rotation of the turntable 2 based on the determination (defectiveness) of the excess / deficiency determination unit.

[Judgment procedure]
The determination procedure by the pass / fail determination unit 62 will be described. The turntable 2 is positioned in advance so that the identification information holding unit 22 and the supply side input unit 4 (takeout side reading unit 5) face each other.

Based on the number and arrangement form of the storage holes 21h of the turntable 2, the collation tag code obtained by calculating the rotation position information of the storage holes 21h from the work supply position F to the work removal position E is stored. Store in unit 61. Here, since the eight storage holes 21h are arranged at equal intervals and the basic rotation angle is 45 ° (the basic rotation angle is one rotation unit), the work is moved from the work supply position F to the work removal position E. The rotation position information of the storage hole 21h is 315 ° (7 times). That is, as shown in Table 1, the storage unit 61 performs collation after rotating each tag code (here, a number) input to the identification information holding unit 22 by the supply side input unit 4 by 315 ° (7 times). Store as a tag code. “-” In Table 1 means that there is no matching tag code.

When the work W is conveyed to the storage hole 21h at the work supply position F, the supply side input unit 4 inputs a tag code to the identification information holding unit 22 corresponding to the storage hole 21h at the work supply position F. Here, as shown in Table 1, the supply side input unit 4 inputs consecutive numbers in order from "1" as a tag code each time the turntable 2 rotates by a basic rotation angle (45 °). By using consecutive numbers for the tag code to be input, it is easier to determine the transport time of the work W, the sizing time of the work W, and the like, as compared with the case where the numbers "1" to "8" are repeatedly used.

The take-out side reading unit 5 reads the tag code input to the identification information holding unit 22 corresponding to the storage hole 21h at the work taking-out position E. The read tag code is sent to the pass / fail determination unit 62. The take-out side reading unit 5 reads the tag code input to the identification information holding unit 22 each time the turntable 2 rotates by a basic rotation angle (45 °).

The quality determination unit 62 reads the collation tag code from the storage unit 61, collates the collation tag code with the tag code read by the extraction side reading unit 5, and determines that the tag code is “good” if both tag codes match. However, if they do not match, it is judged as "defective". This determination is performed each time the tag code is read by the take-out side reading unit 5. The quality determination unit 62 reads a collation tag code from the storage unit 61 at the start of rotation (immediately after the determination) of the basic rotation angle of the turntable 2 based on the rotation speed of the table drive mechanism (motor of the motor vehicle). If the turntable 2 is stopped in the middle of rotation due to a malfunction of the table drive mechanism and the turntable 2 is rotated by a manual operation, the pass / fail determination unit 62 reads the next collation tag code from the storage unit 61. The current collation tag code is used to determine the consistency with the tag code read by the take-out side reading unit 5.

When the turntable 2 is rotating appropriately, both tag codes always match, so that the pass / fail determination unit 62 always determines "good". Further, when the turntable 2 is stopped in the middle of rotation due to a malfunction, if the turntable 2 is manually rotated to move the position of the storage hole 21h to an appropriate position and restarted, both tag codes match. Therefore, the judgment of the pass / fail determination unit 62 is “good”. For example, when the supply side input unit 4 inputs "8" as a tag code, the tag code read by the extraction side reading unit 5 is "1" and the collation tag code is "1", so both tag codes. Match.

If the turntable 2 rotates improperly, for example, the turntable 2 stops in the middle of rotation due to a defect, and the turntable 2 is manually rotated to move the position of the storage hole 21h to an inappropriate position. When restarted, both tag codes do not match, so the judgment is "bad". For example, when the turntable 2 is rotated to move the position of the storage hole 21h to the position of the storage hole 21h one position ahead of the appropriate position in the rotation direction, when the collation tag code is "3", the take-out side The tag code read by the reading unit 5 becomes "4", and both tag codes do not match. Then, since the work W that should be conveyed to the die 31 passes through the work forming position S without being conveyed to the die 31, an unsized product is produced on the turntable 2. When the turntable 2 is rotated and the storage hole 21h is moved to the position of the storage hole 21h one rearward in the rotation direction from the appropriate position, when the collation tag code is "3", the take-out side reading unit 5 The read tag code becomes "2", and both tag codes do not match. Then, since the sized work W is conveyed to the die 31 again, the sizing product is produced on the turntable 2 a plurality of times, so that the turntable 2 is stopped. As a result of the determination being "bad" in this way, the turntable 2 is stopped and the work on the turntable 2 is collected.

[Other]
It is preferable to provide a judgment confirmation unit (not shown) that allows the operator to confirm the judgment result. Examples of the determination confirmation unit include at least one of a display device such as a monitor that can be visually confirmed, a lighting device such as a warning lamp that emits light, and an alarm device such as an alarm speaker that makes a sound to notify an operator. The determination confirmation unit may be provided on the press body, for example.

[Use]
The sizing device 1 according to the embodiment can be suitably used as a sizing device that corrects the dimensions of the sintered body in the process of manufacturing the sintered parts.

[Action effect]
According to the sizing device 1 according to the embodiment, it is possible to reduce the work of collecting the work W on the turntable 2 while suppressing the transportation of the unsized product or the sizing product a plurality of times to the downstream of the sizing device 1.

It should be noted that the present invention is not limited to these examples, and is indicated by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

For example, if the tag code read by the take-out side reading unit and the collation tag code do not match, the determination may be "good", and if both tag codes match, the determination may be "bad". In this case, the collation tag code is a tag code (number) that is deviated by a certain number from the tag code (number) input by the supply side input unit, and is read by the take-out side when it is assumed that the turntable rotates appropriately. One example is to use a tag code (number) that is shifted by a certain number from the tag code that is planned to be read by the unit. Specifically, the turntable stops in the middle of rotation due to a malfunction of the table drive mechanism, and the position of the storage hole is moved to the position of the storage hole one forward or backward in the rotation direction by a manual operation. The tag code (number) in which both tag codes match when the turntable is rotated in this way is used as the collation tag code. By doing so, it is possible to reduce the work of collecting the workpiece on the turntable while suppressing the transportation of the unsized product or the sizing product a plurality of times to the downstream of the sizing device.

1 Sizing device 2 Turntable 21h Storage hole 22 Identification information holding unit 25 Connection base part 3 Die set 31 Die 31h Through hole 35 Die plate 4 Supply side input unit 5 Extraction side reading unit 6 Information processing unit 61 Storage unit 62 Good / bad judgment unit W work F work supply position S work molding position E work take-out position

Claims (2)

A plurality of storage holes for storing the work are provided, and the work in each storage hole is pierced through the die while the storage holes rotate around the rotation axis and move from the work supply position to the work removal position. A sizing device equipped with a turntable for transporting to
A plurality of identification information holding units provided in the vicinity of the respective storage holes in the turntable and corresponding to the respective storage holes,
A supply-side input unit for inputting a tag code into the identification information holding unit corresponding to the storage hole at the work supply position,
A take-out side reading unit that reads a tag code input to the identification information holding unit corresponding to the storage hole at the work take-out position, and a take-out side reading unit.
A storage unit that stores a collation tag code obtained by calculating the rotation position information of the storage hole from the work supply position to the work removal position in advance.
A sizing device including a quality determination unit that collates the tag code read by the take-out side reading unit with the collation tag code and determines the quality of the work from the matching of both tag codes. A die set having the die and upper and lower punches that are inserted into the through hole of the die and press the work in the through hole is provided.
The sizing device according to claim 1, wherein the turntable is provided not on the press main body side having a punch drive mechanism for driving the upper and lower punches, but on the die set side.

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