JPH0140607Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention is utilized in a field in which a pressed product is used as a semi-finished material and the material is subsequently subjected to rolling processing.

That is, the present invention relates to an apparatus that realizes automatic supply of a semi-finished material from a multi-stage heading machine to a rolling machine.

[Conventional technology]

By the way, when attempting to mass-produce bolts and various parts with shapes similar to bolts, the supplied rod-shaped material is subjected to forging in stages using multiple sets of forging dies and forging punches facing each other. A multi-stage heading molding machine of the type that follows this process is widely used.

Similarly, on the outer circumferential surface of the rod-shaped material,
When forming knurling, serration, or ring-shaped grooves, the material should be
A rotary rolling forming machine that performs rolling while rolling in an arcuate rolling space between a circular rotary die and an arcuate fixed die has been widely used. .

However, the latter rolling machine is often supplied with the product formed by the former rolling machine as a semi-finished material, and then the outer peripheral surface of the product is subsequently subjected to rolling processing. In this case, the semi-finished materials sent out from the heading forming machine are stored in a certain quantity at a time and transferred to a vibrating alignment machine, etc., and then sequentially aligned again from the machine and transferred to the rolling forming machine. However, even if both molding machines were placed one after the other on the same production line, it would be troublesome to transfer the material between the two molding machines, and the production efficiency would be unexpectedly improved. do not.

This inconvenience in terms of material transfer, that is, the need to rearrange the material when feeding it to the rolling machine, is due to the fact that ordinary rolling machines eject the rolled products without aligning them in an orderly manner. ing.

On the other hand, Japanese Patent Publication No. 55-11419 and Japanese Utility Model Publication No. 55-14440 describe a forging machine that sends out forged products while orderly aligning them toward the rear.

Therefore, if a forging machine that is capable of aligning and sending out such forged products is adopted and a rolling machine is attached to this machine, it is possible to supply semi-finished materials from the former to the latter.
It can be done directly without re-aligning in the middle,
The above-mentioned inconveniences associated with material supply should be easily solved. However, when comparing a heading forming machine and a rolling forming machine, the latter generally processes a larger number of pieces per unit time than the former, so even if the two forming machines are directly connected, , there is no concern that the number of processed pieces for the latter will not be able to catch up with that for the former.

In particular, in the forging machine described in the above-mentioned Japanese Utility Model Publication No. 55-14440, a sensor is installed in the ram that contributes to the delivery of the product, which is used to stop the machine in an emergency when the delivery of the forged product becomes difficult. Since it is installed on the side, even if there is a problem with the co-supply of material to the attached rolling machine, it is convenient because the rolling machine can be immediately stopped.

On the other hand, in a typical rotary type rolling forming machine, the material must be supplied to the rolling space at a specific timing synchronized with the rotation of the rotary die. Therefore, this type of rolling forming machine
- As described in Publication No. 20412, it is equipped with a material supply cam that rotates in synchronization with the rotating die, and a material pusher that advances and retreats following the cam,
The tip of the pusher normally retreats from the starting end of the rolling space and waits, and moves forward according to a specific timing in order to push the material supplied to the starting end into the rolling space. In addition, this type of rolling forming machine is intended to be used alone, and therefore the material is continuously supplied to the starting end of the rolling space at a rate of one material per reciprocation of the material pusher. It's becoming like that.

[Problem that the invention attempts to solve]

Therefore, if the above-mentioned rolling forming machine is attached to the above-mentioned heading forming machine that is capable of aligning and sending out the formed products, and the latter is intended to directly supply material to the former, a new method is required. The following problems arise.

First, let the number of pieces processed per unit time in the heading forming machine be N ₁ , and that in the rolling forming machine be N ₂ .
In general, N ₁ <N ₂ , that is, N ₁ = aN ₂ /b (where a,
b is a positive integer, a<b), and a=1
This is rarely the case. Therefore, in many cases,
nN ₁ ≠N ₂ (where n is a positive integer of 2 or more).
Therefore, the supply amount is insufficient to feed the material from the heading machine to the rolling machine at a rate of 1 piece for each round trip of the material pusher, and at a rate of 1 piece for every n round trips. Even if it is attempted, it is difficult to match the above-mentioned specific supply timing of the rotary die.

In addition, in such a combination of both forming machines, it is most convenient to feed the semi-finished material to the starting end of the rolling space in the length direction; If you do not make sure that the insertion depth of each material is constant and push them into the rolling space one after another, the length range to be rolled for each material will be inconsistent. .

Furthermore, when supplying the material in the above-mentioned direction, the part to be processed of the material is reliably guided to the starting end of the rolling space without being affected by the shape of the semi-finished material, and rolling is started based on the specific timing of the rotating die. It is necessary to temporarily hold the material until a certain period of time is reached, and if any abnormality occurs in such supply, it is necessary to promptly remove the subsequent semi-finished material.

[Means for solving problems]

The technical means of the present invention for dealing with such problems is configured as follows.

First, the present invention is based on the premise that a multi-stage heading molding machine of the type described in the above-mentioned Japanese Utility Model Publication No. 14440/1988 is employed. In other words, this heading forming machine has an allowance of one more heading stage than the required number of heading stages, and is capable of delivering the heading product in line from the next stage of the final heading stage to the rear of the machine, and detecting abnormalities in the delivery. A sensor is provided on the ram side.

Further, as a rotary type rolling machine attached to the above-mentioned heading machine, for example, the above-mentioned
When the product described in Publication No. 20412 is a vertical type, a horizontal type is adopted in which the center of rotation of the rotary die is horizontal in the front-rear direction, and therefore the rolling space between it and the fixed die is , located around its horizontal center of rotation. This rolling machine is installed so that the starting end of the rolling space is located behind the pressed product outlet on the back surface of the rolling machine. Therefore, the forged products sent out from the former are
As a semi-finished material to the latter, it is supplied in the length direction of the starting end of the rolling space.

In the above-mentioned type of rolling forming machine, a material detection mechanism is added to the innermost part of the starting end of the rolling space to detect whether or not the semi-finished material has been inserted to a predetermined depth.
This mechanism has a detection member that responds to the insertion of a semi-finished material into the starting end of the rolling space, and a material pusher restraining member that is interlocked with the member, and prevents the operation of the material supply cam while the material is not inserted. Regardless, the material pusher is restrained at a standby position retreated from the starting end of the rolling space, and the restraint is released only when the material is inserted to a predetermined depth.

In addition, a material temporary holding mechanism that also serves to guide the semi-finished material to be supplied to the rolling space starting end is arranged a little before the rolling space starting end of this rolling forming machine, that is, at a position close to the heading forming machine. Ru. This mechanism consists of a guide member that correctly guides the tip of the semi-finished material to be supplied to the starting end of the rolling space, and a holding member that temporarily holds the supplied material until the rolling start time. The holding member has elasticity so that the material that has started to move due to the start of rolling can be naturally released.

Furthermore, a material removal mechanism that also serves as a supply path for the semi-finished material is disposed between the pressed product delivery port of the heading molding machine and the above-mentioned material temporary holding mechanism. This mechanism consists of a cylindrical member that is divided into two in the length direction and is normally closed, and a drive member that opens the member. When a feeding abnormality is detected, the cylindrical member is opened.

[Effect]

In the technical means of the present invention configured as described above, material supply to the rolling forming machine is realized as follows.

First, both the heading molding machine and the rolling molding machine are operated together. Then, in the heading forming machine, heading processing for N ₁ piece is performed per unit time at a rate of 1 item for each round trip of the ram, and the formed heading product is transferred from the next stage of the final heading stage to the rear of the machine. They are arranged and sent out in sequence.

In addition, in the rolling forming machine, a rotary die is rotated to perform rolling processing for N ₂ pieces per unit time, and a material feed cam that rotates in synchronization with the die pushes the material pusher to the starting end of the rolling space. They try to force them to advance and retreat. However, unless the semi-finished material is inserted to the starting end of the rolling space to a predetermined depth, the material pusher is restrained from the starting end to the standby position by the restraining member of the material detection mechanism, and is not affected by the rotational movement of the material supply cam. It stands still.

Under these circumstances, the forged product sent to the rear of the machine is passed through the normally closed cylindrical member of the material removal mechanism as a semi-finished material to the machine. The tip portion is correctly guided by the guide member of the material temporary holding mechanism, inserted into the starting end of the rolling space, and temporarily held by the elastic holding member.

At this time, if the semi-finished material is inserted deep into the starting end of the rolling space to the required depth, the detection member of the material detection mechanism is pushed by the tip of the material, and the restraint member is interlocked to push the material. have their restraints lifted. However, since this material pusher operates following the material supply cam, it does not necessarily move forward immediately even if it is released from the restrained state. In other words, the material pusher moves forward while following the cam only after its restraint is released and the time comes for the material supply cam to operate the pusher, and its tip is fed to the starting end of the rolling space. The existing semi-finished material is forcibly pushed into the space. Therefore, if the semi-finished material is supplied to the starting end of the rolling space without synchronizing with the specific rolling timing of the rolling forming machine, it will wait until the next timing at the starting end before being pushed into the rolling space and rolling. It will be processed. Note that the holding member that temporarily holds the semi-finished material until the start of rolling undergoes elastic deformation due to the above-mentioned semi-forced movement of the material, and can easily detach the material.

By the way, in the above case, in many cases, a waiting time is required, however small, until rolling of the semi-finished material supplied to the starting end of the rolling space starts.
However, as mentioned above, the processing capacity N ₁ of the heading forming machine and the processing capacity N ₂ of the rolling forming machine are N ₁ < N ₂ , and the latter has sufficient margin, so the above waiting time is not used. However, in normal cases, there is no concern that the subsequent semi-finished material being fed to the rolling forming machine will break during the process.

On the other hand, if the supply of the semi-finished material to the starting end of the rolling space is hindered, or if the material is not inserted deep into the starting end to the required depth, the constraint state of the material pusher may be released. If there is no such material, the subsequent semi-finished material will be interrupted in the middle. Then, on the heading forming machine side, an abnormality occurred in the feeding of the heading product.
Since this is detected by a sensor, the cylindrical member of the material removal mechanism located in the middle of the supply route to the rolling forming machine is opened in conjunction with the sensor, and the semi-finished material being supplied is removed from the rolling space. It will be discharged. In other words, in the event of an emergency situation in which semi-finished materials cannot be supplied smoothly, the above-mentioned measures should be taken to prevent an even worse situation, such as the destruction of the feeding device itself or the aligning and feeding device of the rolling machine. This can be avoided by evacuation.

[Effect of idea]

Therefore, according to the present invention as described above, a pressed product formed by a pressing machine is supplied as a semi-finished material to the rolling machine, and the material is directly supplied from the former molding machine to the latter molding machine. This makes it possible to easily transfer the material between the two molding machines, thereby making it possible to achieve a significant efficiency improvement in integrated production from heading to rolling.

Further, according to the present invention, the semi-finished material supplied to the starting end of the rolling space is pushed into the rolling space in accordance with the specific rolling timing of the material supply cam synchronized with the rotation of the rotary die, so that the semi-finished material is processed into the rolling space. Even in a combination of a heading forming machine and a rolling forming machine, where it is difficult to match the timing due to differences in capacity, the rolling process in the latter can be performed smoothly without any problems, and the semi-finished material can be Even though the material is supplied in the length direction, the length range to be rolled for each material can be made constant.

Furthermore, according to the present invention, the tip portion, which is the processed part of the semi-finished material to be supplied to the starting end of the rolling space, is correctly guided to the starting end during feeding, and is temporarily maintained until the rolling process starts. Since the material is retained, there is no risk of producing defective rolled products, and if an abnormality occurs in the supply of material to the starting end of the rolling space, the subsequent semi-finished material is immediately removed from the supply path. The feeding device itself and the heading molding machine will not be adversely affected.

〔Example〕

Next, specific embodiments of the present invention will be described with reference to the drawings.

First, to explain the multi-stage heading forming machine adopted in the present invention, as shown in Fig. 1, this forming machine A has one more than the required number of heading stages (three stages in the example).
There is an extra stage, and the extra stage is used as the delivery stage for the headed product. That is, each forging stage of the die block 2 fixed to the machine body 1 is individually equipped with a forging die 3, and the final delivery stage is equipped with a delivery conduit 4 for the forged product.
is attached so as to pass through the body 1 from the block and open to the rear side. In addition, the ram 5 which reciprocates toward the die block 2 in front of the die block 2 is equipped with a pair of forging punches 6 facing each of the forging dies 3 at a position facing the front end of the delivery conduit 4. A delivery punch 7 is attached to the. This delivery punch 7 includes a bunch holder 7a fixed to the ram 5, a punch body 7b fitted into the tip of the holder so as to be able to move forward and backward, and a spring receiver 7c that approaches the holder 7a by being pushed by a spring 8 from behind. and a push rod 7d that urges the punch body 7b in the forward direction with this spring receiver, and the punch body 7b during normal product extrusion.
is always maintained in the most advanced position.

Therefore, in this heading forming machine A, a bar-shaped material A cut to a fixed length by a cutter 9 is sequentially headed at each heading stage, and intermediate products B and C are turned into completed headed products.
(d) is finished, and this is sequentially sent out to the rear of the machine body 1 from the delivery pipe line 4 of the delivery stage as a semi-finished material to a rolling forming machine.

In the vicinity of the above-mentioned delivery punch 7, a proximity switch or a microswitch, for example, is incorporated as a sensor 10 for detecting delivery abnormality, and is adapted to operate in conjunction with the backward movement of the spring receiver 7c against the spring 8.

On the other hand, the horizontal rotary type rolling forming machine B employed in the present invention, as shown in detail in FIG. A stationary die 13 that forms a pair with the die and creates an arcuate rolling space 14 therebetween, a material supply cam 15 that rotates in synchronization with the rotating die 12, and a cam follower 17 that is biased by a spring 16. A rotatable material supply lever 18 that is in constant sliding contact with the cam, and a material pusher 19 that is attached to the working end of the lever.
The tip 19a of the material pusher 19, which is to be advanced toward the starting end 14a of the rolling space 14 by the biasing force of the spring 16, is normally moved away from the starting end 14a by a distance corresponding to the lift amount of the cam 15 described above. They are forced to retreat and wait. A tip 20a of a material stopper 20 is provided at the starting end 14a of the rolling space, facing the tip 19a of the material pusher, and the material pusher 19 is moved forward by a plunger 21 driven by fluid pressure or electromagnetic force. Only time can set us back.

Therefore, in this rolling forming machine B, the semi-finished material 2 supplied to the starting end 14a of the rolling space 14 in a horizontal position is completely rolled while passing through the space as the rotary die 12 rotates. It becomes a manufactured product E and is discharged from the terminal end 14b of the same space.

Such a horizontal rolling machine B is installed such that the starting end 14a of the rolling space is positioned behind the outlet of the forged product delivery conduit 4 on the back side of the forging machine A described above.

The material detection mechanism C added to the inner depth of the rolling space starting end 14a in such a rolling forming machine B is, as shown in FIGS. It is equipped with a detection protrusion 22 and a restraint piece 23 as a restraint member that engages with the stepped portion 19b of the material pusher 19 that has retreated from its starting end 14a to the standby position, and these detection protrusion 22 and restraint piece 23 are , is attached to the tip of a detection lever 25 which is rotatably supported by a pivot 24, and by the elasticity of a spring 26 applied to the lever, the detection protrusion 22 is moved to a deep position inside the starting end 14a, and the restraining piece 2
3 are each urged to advance to a position where they engage with the stepped portion 19b of the material pusher. Note that behind the tip of the detection lever 25, there is a rolling space starting end 14.
An adjustment screw 27 is provided as a stopper for regulating the insertion depth of the semi-finished material into the hole a.

Therefore, this material detecting mechanism C has the material supply cam 1
Even if the material supply lever 18 following the material feed lever 18 operates to advance the material pusher 19 toward the starting end 14a of the rolling space, normally the step portion 19b of the pusher
When the semi-finished material 2 supplied to the starting end 14a reaches a predetermined insertion depth as shown by the chain line in FIG. When the detection protrusion 22 is pushed by the tip of the material and the detection lever 25 is rotated as shown by the chain line, the restraining piece 23 is retracted from the material pusher 19 and the pusher is released from the previously restrained state. works.
Therefore, the material pusher 19 moves forward in accordance with the movement of the material supply cam 15 of the material supply lever 18, and uses its tip to roll the semi-finished material 2 supplied to the starting end 14a of the rolling space. This means that they will be forced halfway into the built space 14.

However, in the embodiment of FIG. 3 regarding the material detection mechanism C as described above, the detection protrusion 22 and the restraining piece 2
3 are configured to mechanically interlock with each other via the detection lever 25, so if the force pushing the detection protrusion 22 of the supplied semi-finished material 2 is weak, the restraint piece 23 will be separated from the step 19b of the material pusher. I failed to let it happen,
There is a concern that it may become impossible to push the material 2 into the rolling space 14.

Therefore, the material detection mechanism of the embodiment shown in FIG.
C' includes a detection switch 22' such as a push switch in place of the detection protrusion 22, and a restraining piece 23.
A restraint plunger 23', such as a solenoid plunger, is configured to replace the workpiece pusher, and the plunger is electrically linked with the pressure receiving operation of the detection switch 22, and is retracted in the direction of separating from the stepped portion 19b of the material pusher. There is. In this embodiment, the detection switch 2 is used as a stopper for regulating the insertion depth of the semi-finished material into the starting end 14a of the rolling space.
A mounting board 28 2' is used, and the front and rear positions of the board are adjusted with setscrews 29 thereof.

In the embodiment of FIG. 4, the detection switch 2
2' operates satisfactorily even with a weak pressing force, and the restraining plunger 23' also operates strongly regardless of the strength of the pressing force applied to the switch. Therefore, according to this embodiment, even if the force for pressing the detection switch 22' of the supplied semi-finished material is weak, the restraint plunger 23' can be separated from the stepped portion 19b of the material pusher 19, and the pusher The restraint of the material can be reliably released, and therefore, there is no fear that the material 2 will not be able to be pushed into the rolling space 14.

Next, as shown in Figs.
A guide block 32 as a guide member supported by a position-adjustable bracket 31 on a bar 30 protruding from the body 11 of
It is equipped with The block 32 has a semi-cylindrical shape along the direction toward the starting end 14a of the rolling space, and a guide groove 34 which is open in the direction of movement during rolling of the semi-finished material, and a heading forming machine from the groove. Conical guiding surface 35 once expanded toward A
The lower end of the spring plate 33 is a part of a conical surface that faces the guide groove 34 and slightly blocks the open lateral upper part of the groove, and is substantially the same as the guide surface 35 described above. It has a guiding piece 36. The space surrounded by the guide groove 34 and the lower end of the spring plate 33 is set to a size corresponding to the outer diameter of the semi-formed material 2 toward the starting end 14a of the rolling space.

Therefore, this material temporary holding mechanism D is slightly inclined as shown by the chain line in FIG. Even if the device is in a tilted posture, the leading end portion is guided in the correct direction by the guiding surface 35 and the guiding piece 36, and guided to the starting end 14a by the guiding groove 34 and the lower end of the spring plate 33 without any trouble. Furthermore, even after the semi-finished material 2 has been guided and supplied to the starting end 14a of the rolling space as described above, the mechanism D continues to guide it as shown in FIG. As shown in the solid line diagram, the guide groove 34 and the lower end of the spring plate 33 that blocks the open side of the groove are temporarily held,
Prevent undesirable inclination between them. However, the above-mentioned temporary holding of the semi-finished material 2 is achieved by the elastic deformation of the spring plate 33 in the direction away from the material when the material begins to move along the rolling space 14 with the start of the rolling process. It is released by the process and does not interfere with the rolling process.

On the other hand, the material removal mechanism E for emergencies, which is placed closer to the forging machine than the material temporary holding mechanism D, can be positioned on the bar 30 as shown in FIGS. 1, 5, and 7. The opening/closing cylinder 38 is a cylindrical member supported by a bracket 37, and the driving body 40 is driven by fluid pressure or electromagnetic force and has a plunger 39 as a driving member for opening the cylinder. The above-mentioned opening/closing cylinder 38 consists of two cylindrical pieces 38a and 38b which are divided into two in the length direction and pivotally connected to the upper hinge shaft 41 so as to be freely openable downward. It is closed with a tension spring 42 so that it can also serve as a path. Further, the driving body 40 is electrically linked with the above-mentioned delivery abnormality detection sensor 10 in the ram 5 of the heading forming machine A, and in response to the detection operation of the sensor, the opening/closing cylinder 3
8, the plunger 39 is pulled.

Therefore, this material removal mechanism E usually only serves to guide the semi-finished material 2, which is about to be supplied to the starting end 14a of the rolling space, through the closed opening/closing cylinder 38. However, due to some kind of hindrance to this supply, the subsequent semi-finished materials became unavailable.
When an emergency situation occurs in which the heading product cannot be sent out on the heading forming machine side, the opening/closing cylinder 38 is opened downward in conjunction with the sensor 10 that detects this situation, so that the rolling space is closed. This situation can be dealt with by discharging and dropping the subsequent semi-finished material before reaching the starting end 14a.

By the way, in the embodiment described above, the first and fifth
As is clear from the figure, the supply of the semi-finished material 2 to the starting end 14a of the rolling space relies on the delivery operation of the delivery punch 7 on the heading forming machine side, and therefore the punch successively supplies the semi-finished material 2 to the delivery pipe line 4. Each semi-finished material 2 that is fed reaches the starting end 14a of the rolling space while being sequentially pressed by the same material that follows. Therefore, in this embodiment, as can be understood from FIG. 1, from the tip end surface of the delivery punch 7 when the ram 5 moves forward, to the predetermined insertion depth of the semi-finished material 2 at the starting end 14a of the rolling space. The distance must be set to an integral multiple of the total length of the material. Therefore, the delivery pipe 4 on the back of the head forming machine A
An extension pipe 43 is connected to the outlet of the material removal mechanism E, and the rear end of the pipe faces the opening/closing cylinder 38 of the material removal mechanism E. The length of this extension pipe 43 is considered in advance to achieve the above set distance. I'm letting you do it.

However, in practice, such embodiments often require troublesome fine adjustment work such as moving the position of the rolling machine B back and forth in order to achieve the above-mentioned set distance. Every time the total length of the material is changed or the rolled length is changed, it is necessary to replace the extension tube 43 with one of a different length and perform the above-mentioned fine adjustment work.

Therefore, in the embodiment shown in FIG.
An annular compressed air injection nozzle 44 is interposed between the opening and closing cylinder 38 and a plurality of inward nozzles 45 provided in the nozzle are opened toward the inside of the cylinder 38.

According to the embodiment shown in FIG. 8, the compressed air pressure injected from each nozzle 45 is applied to the semi-finished material that has passed through the nozzle 44 from the extension pipe 43 and entered the opening/closing cylinder 38. Since the material can be fed to the starting end 14a of the rolling space, there is no need to rely on the feeding operation of the feeding punch 7 on the heading forming machine side to feed the material to the starting end, and therefore, the above-mentioned distance setting is unnecessary. Therefore, various troubles for realizing the set distance can be avoided.

In the embodiment shown in FIGS. 1 and 2, there is a chute 46 below the terminal end 14b of the rolling space, and further below this there is a turntable 47 that rotates forward or reverses intermittently by 180 degrees. , on the table is a main conveyor 48 that can be moved in both directions in a direction perpendicular to the supply direction of the semi-finished materials.
is installed, and auxiliary conveyors 49 and 50 that can be run at any time are installed in the same direction before and after the conveyor. A storage box 51 for rolled products E is placed on the main conveyor 48, and a spare storage box 51' is placed on the auxiliary conveyor 49. Therefore, according to this embodiment, the rolled product hos released one after another from the terminal end 14b of the rolling space can be guided into the storage box 51 by the chute 46 and stored therein. By inching the main conveyor 48 one by one, it is possible to store the products in alignment, and by rotating the turntable 47 180 degrees when the products are stored end to end, the orientation of the products can be changed. You can also store them by changing them and stacking them on top of each other. Furthermore, when the inside of the storage box 51 is filled with rolled products in this way, the main conveyor 48 is made to run toward the auxiliary conveyor 50, and the auxiliary conveyor 49 is made to run toward the main conveyor 48. The full storage box 51 is transferred to the auxiliary conveyor 50, and at the same time a spare storage box 51' is supplied from the auxiliary conveyor 49 to the main conveyor 48, so that the aligned storage of rolled products can be continued. can.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway plan view showing an embodiment of the present invention, Fig. 2 is a partially cutaway enlarged front view seen from the - line in Fig. 1, and Fig. 3 is a partially cutaway enlarged front view seen from the - line in Fig. 2. 4 is a partially cutaway plan view of another embodiment taken from the same line, and FIG. 5 is a partially cutaway enlarged side view taken from the - line of FIG. Figure 6 is a partially cutaway front view taken from the - line in Figure 5;
The figure is a partially cutaway front view seen from the - line in Figure 5.
FIG. 8 is a cutaway enlarged sectional view showing only the main parts of another embodiment as seen from the - line in FIG. 1. A...Multi-stage heading machine, B...Rotary rolling machine, C, C'...Material detection mechanism, D...Material temporary holding mechanism, E...Material removal mechanism, 1...Forging machine Machine body, 2...Diamond block, 4...Delivery pipe line, 5...Ram, 7...Delivery punch, 10...
Delivery abnormality detection center, 11... Body of the rolling forming machine, 12... Rotating die, 13... Fixed die, 14
...Rolling space, 15...Material supply cam, 18...
Material supply lever, 19...Material pusher, 19
a...Step part of material pusher, 20...Material stopper, 22...Detection protrusion (detection member), 23...
...Restraint piece (restraint member), 25...Detection lever, 2
2'...detection switch, (detection member), 23'...restriction plunger (restraint member), 32...guide block (guiding member), 33...spring plate (holding member),
34...Guiding groove, 35...Guiding surface, 36...Guiding piece, 38...Opening/closing cylinder (cylindrical member), 40...Driving body (driving member) having plunger 39, 42...
...Tension spring, 43... Extension pipe, 44... Annular compressed air injection nozzle, 45... Nozzle, A... Rod-shaped material, B, C... Intermediate product, D... Heading which is a semi-finished material Product, ho...Rolled product.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) The final stage is a delivery stage for the forged product, with one more stage than the required number of heading stages, and the die block side of this delivery stage is provided with a spacer for the back of the machine. A multi-stage head forming machine is equipped with a delivery punch on the ram side and a sensor for detecting delivery abnormality near the punch, a rotary die whose center of rotation is horizontal, and This has a pair of fixed dies, and an arc-shaped rolling space is provided between both dies. A horizontal rotary rolling forming machine facing the beginning of the space,
Both of the above-mentioned forming machines are installed so that the starting end of the rolling space of the latter is located behind the forged product outlet on the back of the former machine, and the forged products of the former are supplied as semi-finished materials to the latter. In combination, a material detection mechanism added to the inner depths of the starting end of the rolling space in the rolling machine, a material temporary holding mechanism placed at a position near the heading machine in front of the starting end, and a material temporary holding mechanism that It consists of an emergency material removal mechanism located closer to the forging machine than the mechanism, and the material detection mechanism described above is
A detecting member is pushed and moved by the semi-finished material inserted to the starting end of the rolling space to a required depth, and the pushing shear is usually restrained in a standby position where the tip of the material pusher is retreated from the starting end of the rolling space. The material temporary holding mechanism is composed of a restraining member that moves in conjunction with the detection member in the direction of releasing the rolling space, and a guide member that guides the tip of the semi-finished material to the starting end of the rolling space, and a guide member that guides the tip of the semi-finished material to the starting end of the rolling space, and The material removal mechanism consists of a holding member that elastically captures the semi-finished material supplied to the starting end of the space, and the material removal mechanism is a cylinder that is divided into two in the length direction and is normally closed to serve as a transport path for the semi-finished material. and a drive member that moves forward and opens the cylindrical member when the sensor detects a feeding abnormality on the side of the heading forming machine. Equipment for supplying semi-finished materials to molding machines. (2) The material detection mechanism is composed of a detection protrusion located deep inside the starting end of the rolling space and a restraining piece that engages with the step of the retracted material pusher, and both of them are attached to the same detection lever. Utility model registration claim No. 1, characterized in that the detection lever rotatably supported is elastically biased in a direction to advance the detection protrusion into the starting end of the rolling space. ) The semi-finished material supply device described in item ). (3) The material detection mechanism is composed of a detection switch located deep inside the starting end of the rolling space and a restraint plunger that engages with the step of the retreated material pusher, and this restraint plunger receives pressure from the detection switch. The semi-finished material supply device according to claim (1) of the utility model registration, characterized in that it is electrically interlocked with the material pusher and separated from the material pusher. (4) The distance from the tip of the delivery punch when the ram advances in the heading forming machine to the predetermined insertion depth of the semi-finished material to the starting end of the rolling space in the forming machine is an integral multiple of the total length of the semi-finished material. 1. A semi-finished material supply device as set forth in claim (1) of the utility model registration claim. (5) An annular compressed air injection nozzle is interposed at a position of the emergency material removal mechanism near the heading machine, and each of the plurality of injection ports in the nozzle is opened toward the inside of the cylindrical member of the mechanism. A semi-finished material supplying device as set forth in claim (1) of the utility model registration claim.