JPH11179461A - Feed device for member to be worked - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an inexpensive feed device for a member to be worked capable of feeding a member to be worked by synchroneously rotating a feed roll and a tension roll with a mechanical mechanism only. SOLUTION: This device is provided with a feed out device 39 and a pull in device 59 which are arranged opposing to the both sides with interposing a die and respectively have a pair of upper.lower material feed rolls, an air cylinder 32 which reciprocates a feed out side feed plate 33 and a pull in side feed plate 56, a gear which is constituted to convert the reciprocating motion force of the feed out side feed plate 33 and the pull in side feed plate 56 to rotating motion force so as to be transmitted to the material feed rolls and a connecting plate 55 for left.right interval adjustment which adjusts an interval between the feed out device 39 and the pull in device 59 arranged opposing to each other according to the size of the die. By holding a strip like material 25 between a pair of the upper.lower material feed rolls, the strip like material 25 is fed to the die through the rotation of the material feed roll.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a workpiece feeding device for intermittently feeding workpieces such as strips by a predetermined length to a mold on a bolster plate of a press machine. .

[0002]

2. Description of the Related Art Conventionally, as a feeding device for feeding a plate material to a press, a double feed provided with roll feeds on both left and right sides of the press has been frequently used. For example, Shokai 5
Japanese Patent Application Laid-Open No. 5-28034 discloses a double-roll feed strip feeding apparatus in which roll feeds provided on the inlet side and the outlet side of a strip of a press machine are driven by a motor controlled by NC. .

FIG. 6 is a perspective view showing a conventional strip feeder disclosed in Japanese Utility Model Publication No. 2-14813, in which a roll feeder strip attachment is added. In FIG. 6, reference numeral 1 denotes an NC roll feeder, and reference numeral 2 denotes an attachment for a roll feeder strip material, which is disposed on both sides of a press die (not shown). Reference numeral 3 denotes a feed roll composed of a lower feed roll 3a and an upper feed roll 3b of the NC roll feeder 1, and 4 denotes an NC control device. The NC control device 4 drives the servo motor 5 to drive the speed reduction device 6 Then, the rotation is transmitted to the lower feed roll 3a, and the upper feed roll 3b is further rotated by the gears 7 and 8, so that the upper and lower feed rolls 3a and 3b are rotated.
Is fed in the direction of arrow A by a fixed amount. The rotation of the lower feed roll 3a is controlled by a first driving force changing mechanism 10 including gears 10a and 10b, a coupling shaft 11, a transmission shaft 13 including a main shaft 12, and a gear 1.
Through the second driving force changing mechanism 14 composed of 4a and 14b, the power is transmitted to the lower roll 15a of the tension roll 15 of the roll feeder strip material attachment 2. The rotation of the lower roll 15a is controlled by the gears 16 and 17 to rotate the upper roll 15a.
b.

In such a conventional strip feeder, when the strip 9 is fed in the direction of arrow A by the feed roll 3 of the NC roll feeder 1 and when the tip of the strip 9 reaches the pulling roll 15, The strip material 9 is clamped by the pulling roll 15, and thereafter the strip material 9 is fed by the pulling roll 15.

[0005]

In the conventional workpiece feeder as described above, the NC controller 4 and the servomotor 5 are used for driving the NC roll feeder 1 to rotate. There is a problem that the manufacturing cost is increased due to the complicated structure of the directional mechanisms 10, 14, and the like.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and does not use an NC control device, a servomotor, a driving force changing mechanism, and the like, and uses only a mechanical mechanism and a feed roll. It is an object of the present invention to provide an inexpensive workpiece feeder capable of feeding a workpiece by synchronously rotating a pulling roll.

[0007]

In a workpiece feeding apparatus according to the present invention, a pair of upper and lower first and second pairs of upper and lower workpieces, which are disposed opposite to each other with a mold therebetween and feed the workpiece to the mold, are provided. And a reciprocating unit having a reciprocating member that performs reciprocating motion, and a conversion unit configured to convert the reciprocating motion force of the reciprocating member of the reciprocating portion into a rotational motion force and transmit the rotational motion force to the first rotating member. A workpiece is sandwiched between a pair of upper and lower first rotating members, and the workpiece is fed to a mold by rotation of the first rotating member. In addition, an interval adjustment unit is provided for adjusting the interval between the first rotating members disposed to face each other according to the size of the mold. In addition, a height adjusting unit is provided for adjusting the height of the workpiece to be sandwiched between the pair of upper and lower first rotating members according to the height of the mold.

In addition, the apparatus has a feed amount adjusting section for adjusting the feed amount of the workpiece by adjusting the range in which the reciprocating member of the reciprocating portion reciprocates. Further, the adjustment of the feed amount of the workpiece is performed by using an elongated hole provided in the feed amount adjustment unit in parallel with the reciprocating direction of the reciprocating member and positioning the workpiece at an arbitrary position in the elongated hole. is there.

The converting portion converts the reciprocating motion force into a rotational motion force by a flat tooth profile provided on a reciprocating member of the reciprocating portion and a gear engaging with the tooth profile and rotating in one direction. . The conversion unit has a pair of upper and lower second rotating members, sandwiches the reciprocating member of the reciprocating unit between the pair of second rotating members, and reciprocates the pair of second rotating members by the reciprocating motion of the reciprocating member. One of the members rotates in one direction, and a second rotating member rotating in one direction is connected to the first rotating member.

In addition, the outer peripheral surface of the second rotating member that rotates in one direction is formed as a gear, and the reciprocating member of the reciprocating portion is formed with a tooth profile so as to engage with the gear. . The reciprocating member of the reciprocating portion is driven by an air cylinder.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a perspective view showing a strip material feeding apparatus according to Embodiment 1 of the present invention. In FIG. 1, 21 is a press machine, 22 is a press machine 2
A ram 23 is a bolster plate of the press 21. 24 is a die for press working, 25 is a strip material to be processed, 26 is a strip material sandwiched between the dies 24 to feed the strip material 25 to the pressing surface of the die 24. Feeding device.

FIG. 2 is a perspective view showing a configuration of a main part of the strip material feeding apparatus of the present invention. In FIG. 2, reference numeral 27 denotes a vertically movable plate supporting plate which constitutes a height adjusting unit, and is fixed to a bolster plate 23 of a press machine 21 with screws. Reference numeral 28 denotes a vertically movable plate, and 29 denotes a height adjusting screw of the vertically movable plate 28. Inside the guide rail (not shown) provided on the vertically movable plate support plate 27, the vertically movable plate 28 is shown in FIG. It is configured to be able to slide in the vertical direction of the bolster plate 23 of the press machine 21, and
The apparatus support plate 30 supported by the vertically movable plate 28 is moved up and down by a height adjusting screw 29 to adjust the height of the press machine 21 on the bolster plate 23 in accordance with the predetermined height.

The apparatus supporting plate 30 is perpendicular to the vertically movable plate 28, and
It is attached and fixed in parallel to the three surfaces. Reference numeral 31 denotes an air cylinder support plate, which is vertically fixed to one end of the device support plate 30. An air cylinder 32 is driven by air supplied from an air compressor (not shown), and is attached and fixed to the air cylinder support plate 31. Reference numeral 33 denotes a delivery side feed plate. Reference numeral 34 denotes a feed amount adjusting pad, which is vertically fixed to one end of the feed side feed plate 33 and is directly connected to and fixed to the cylinder end of the air cylinder 32. Drive back and forth in the B direction. Reference numeral 35 denotes a feed amount adjusting plate constituting a feed amount adjusting portion, which is bent in an L shape, and is formed so that the contact surface 36 can be engaged with the feed amount adjusting pad 34. Also, the feed amount adjusting plate 3
5 is provided with an oval hole 37 for adjusting the feed amount.
Is set, and the movable restriction dimension L1 is set in accordance with the predetermined feed length of the strip material 25, and the strip material 25 is tightened and fixed by the feed amount adjusting plate mounting screw 38.

Reference numeral 39 denotes a feeder, and reference numeral 40 denotes a feed roll support member for accommodating and supporting each component of the feeder 39. Reference numeral 41 denotes a generally used roll with a built-in one-way clutch, the outer peripheral surface of which is formed on a gear (not shown). Reference numeral 42 denotes a material feeding lower roll, and 43 denotes a material feeding upper roll provided with a predetermined gap facing the material feeding lower roll 42. The rotation shaft (not shown) of the material feeding lower roll 42 is directly connected to the output shaft (not shown) of the one-way clutch built-in roll 41 to transmit the rotation. . Reference numeral 44 denotes a toothed belt, which constitutes a conversion unit together with the roll 41 with a built-in clutch, is wound around the roll 41 with a built-in one-way clutch, The teeth 44 are configured so as to mesh with each other, and are attached and fixed to the feed-side feed plate 33.
Reference numeral 45 denotes a pair of pressing rollers, which are disposed on both sides of the one-way clutch built-in roll 41 and press the toothed belt 44, and mesh teeth of the gear of the one-way clutch built-in roll 41 and the gear of the toothed belt 44. By increasing the number, it is used to ensure this engagement.

Reference numeral 46 denotes a lower roll shaft, 47 denotes an upper roll shaft,
8 is an upper roll push-up handle, 49 is an upper roll push-up cam, 50 is an upper roll push-up shaft, 51 is an upper roll push-up lever, 52 is an upper roll push-up lever fulcrum, 53 is an upper roll movable hole, and 54 is an upper roll push-up shaft. These are pressure screws, which constitute an interval adjusting unit for adjusting the gap between the lower material feed roll 42 and the upper material feed roll 43 in accordance with the thickness of the strip material 25.
The parts are supported or mounted by means of these. 55
Is a connecting plate for adjusting the interval between the left and right rolls, and 56 is a drawing-in feed plate. The connecting plate 55 for adjusting the interval between the left and right rolls is provided with an oblong hole 57 in the center and a connecting plate fixing screw 58 at the tip.
Are screwed and fixed to the feed side feed plate 33 and the draw side feed plate 56 respectively. A reciprocating member is constituted by the sending-side feed plate 33, the retraction-side feed plate 56, and the connecting plate 55 for adjusting the interval between the left and right rolls. A reciprocating portion is constituted by the reciprocating member and an air cylinder for driving the reciprocating member. Reference numeral 59 denotes a pull-in device, and 60 denotes a pull-in roll support member, which is configured similarly to the feed-out device 39 and the feed roll support member 40. The distance between the feeding device 39 and the retracting device 59 is variable by setting the position of the connecting plate 55 for adjusting the distance between the left and right rolls according to the size of the mold 24 and screwing and fixing the connecting plate fixing screw 58. It is configured to be able to.

FIG. 3 is a perspective view showing the details of the main part of the strip material feeding device of FIG. 2. FIG. 3 (a) shows a case where the distance between the feeding device and the drawing device is narrow, and FIG. Is shown. In the figure, 25, 31 to 38, 41 to 4
5, 55 to 58 are the same as those in FIG. L2 and L3 are lengths corresponding to the size of the mold.
Is set and screwed and fixed using the connecting plate fixing screw 58.

In the strip material feeding apparatus thus configured, as shown in FIG. 2 and FIG.
5, the feed amount L1 of the strip material 25 is set and fixed, and the feed side feed plate 33 is driven by the driving of the air cylinder 32.
Performs a linear reciprocating motion of dimension L1 in the direction of arrow B. This linear reciprocating motion is transmitted as a rotational motion to the one-way clutch built-in roll 41 by the meshing of the gears of the toothed belt 44 and the one-way clutch built-in roll 41. When the feed-side feed plate 33 is pushed rightward, the one-way clutch built-in roll 41 rotates clockwise as viewed from the near side of FIG. When rotated, the rotation is counterclockwise as indicated by arrow C.

The output shaft (not shown) of the one-way clutch built-in roll 41 is directly connected to the material feeding lower roll 42 to transmit this rotation. Here, when the one-way clutch built-in roll 41 rotates clockwise as indicated by the arrow C, the rotation of the material feeding lower roll 42 is in the direction of the arrow Da. This rotation is not transmitted to the material lowering roll 42 by the clutch mechanism (not shown) of the clutch built-in roll 41,
The material lower roll 42 is in a stopped state. A material feed upper roll 43 is provided opposite to the material feed lower roll 42 with the strip material 25 interposed therebetween. The rotation of the material feed lower roll 42 and the material feed upper roll 43 (the material feed upper roll 4
The rotation of No. 3 is in the direction of arrow Db), and the strip material 25 is sent in a predetermined amount (the right direction shown in FIG. 3A) set by the dimension L1. The strip material 25 is placed on the bolster plate 23 by the vertically movable plate support plate 27, the vertically movable plate 28, and the height adjusting screw 29 in accordance with the height of the mold 24 fixed on the bolster plate 23 in FIG. Set the height and fix it.

At the start of the operation, the strip material 25 is shown in FIG.
When the sheet is manually fed from the left side to the feeding device 39 side and abuts against the material feed lower roll 42 and the material feed upper roll 43, the upper roll push-up handle 48 is pulled toward the front, so that the upper roll push-up cam portion 49 and the upper roll The material feed upper roll 43 is lifted upward by the push-up lever 51, the strip material 25 is sandwiched between them, and the gap between the material feed lower roll 42 and the material feed upper roll 43 is reduced by the upper roll pressing screw 54. The strip material 25 is set so that an appropriate clamping force is obtained according to the thickness of the material 25, and the strip material 25 is fed onto the mold 24. Then, the strip material 25 is pressed on the mold 24, and the remaining material is subsequently sent to the drawing device 59.

Next, also in the retraction device 59, the linear reciprocating motion of the retraction side feed plate 56 connected to the feed side feed plate 33 by the connecting plate 55 for adjusting the roll gap between the right and left rolls is performed by the roll 41 with a built-in one-way clutch. 3
The rotation is transmitted to the material feeding lower roll 42 on the drawing-in device 59 side in synchronization with the one-way clutch built-in roll 41 on the 9 side and the material feeding lower roll 42. When the strip material 25 reaches the drawing-in device 59, the strip material 25 has an appropriate holding pressure by setting a gap between the material feeding lower roll 42 and the material feeding upper roll 43, similarly to the feeding device 39 side. The sheet is nipped, and is fed in synchronization with the feed device 39 in accordance with the rotation of these rolls.

According to the first embodiment, the feeding mechanism for feeding the strip material 25 to the mold 24 is provided by the air cylinder 32.
The feed-side feed plate 33 and the draw-in side feed plate 56 linearly reciprocated by the air cylinder 32; the feed amount adjusting plate 35; the toothed belt 44 of the feed device 39 and the pull-in device 59; A roll 41 with a built-in one-way clutch that engages with
And the upper and lower material feed rolls 42 and 43 of the pull-in device 59. The linear reciprocating drive of the feed-side feed plate 33 and the pull-in side feed plate 56 driven by the linear reciprocating motion of the air cylinder 32 includes Rotational motion is converted by a directional clutch built-in roll 41 and a toothed belt 44, and the material feed lower roll 42 and the material feed upper roll 4 are converted.
3 is fed, and the feed amount at this time is set by adjusting the distance between the feed amount adjusting plate 35 and the feed amount adjusting pad 34. It is not necessary to use expensive components such as an NC control device and a servomotor, and the manufacturing cost is reduced.

Further, since a complicated mechanism such as a rotating direction changing mechanism as in the conventional apparatus is not required, the strip 25 can be reliably fed with a simple configuration, and the manufacturing cost of the strip feeder is reduced. be able to. Further, the distance between the feed device 39 and the pull-in device 59 is adjusted by the connecting plate 5 for adjusting the left-right roll distance.
By changing the tightening and fixing position of the oblong hole 57 provided in 5, it is configured to be variable, so that it is possible to cope with the dimensional change of the press machine 21 and the mold 24 in the left-right direction.

Embodiment 2 FIG. FIG. 4 is a perspective view showing a conversion mechanism for converting a linear reciprocating drive to a rotary motion of a strip material feeding apparatus according to Embodiment 2 of the present invention. In the first embodiment, as a mechanism for converting a linear reciprocating drive into a rotary motion, a delivery-side feed plate 33, a toothed belt 44 provided on a retraction-side feed plate 56, and a roll with a one-way clutch engaged with the same. As shown in FIG. 4, a one-way clutch built-in roll 41a connected to the material feed lower roll 42 and having no gear on the outside is provided as shown in FIG.
A pressing roll 61 is provided opposite to the one-way clutch built-in roll 41a so as to sandwich and press the feed-side feed plate 33 or the retraction-side feed plate 56, and feeds a strip material as a second rotating member. Even if the device is configured, the same operation can be performed, and the structure can be simplified.

Embodiment 3 FIG. FIG. 5 is a perspective view showing a conversion mechanism for converting a linear reciprocating drive to a rotary motion of a strip material feeding apparatus according to Embodiment 3 of the present invention. In the figure, reference numeral 41b denotes a gear formed on the outer peripheral surface of the one-way clutch built-in roll 41. 33b is the feed side feed plate 33 or the retract side feed plate 5 so as to mesh with the gear 41b.
6 is a rack having a tooth shape formed on the back surface of No. 6; Other configurations are the same as those of the second embodiment.

With such a configuration, the linear reciprocating drive of the feed side feed plate 33 or the retraction side feed plate 56 is converted into the rotational motion of the one-way clutch built-in roll 41, the material feed lower roll 42, and the material feed upper roll 43. Thus, the same operation as in the first embodiment can be performed, and the structure can be further simplified. In the second and third embodiments, the sending-side feed plate 33 is used.
Alternatively, the pressing roll 61 is provided so as to sandwich and press the drawing-in side feed plate 56.
It is a matter of course that the pressing roll 61 facing the one-way clutch built-in roll may be provided on both the pull-in side feed plate 3 and the pull-in side feed plate 56.

[0026]

Since the present invention is configured as described above, it has the following effects. A pair of upper and lower first rotating members, each of which is arranged opposite to both sides of the mold and feeds a workpiece to the mold, and a reciprocating unit having a reciprocating member performing reciprocating motion, A conversion unit configured to convert the reciprocating motion force of the reciprocating member into a rotational motion force and transmit the rotational motion force to the first rotating member is provided, and the workpiece is sandwiched between a pair of upper and lower first rotating members. Since the workpiece is fed to the mold by the rotation of the first rotating member,
The workpiece can be reliably fed with a simple configuration without using an expensive NC device, a servomotor, or a complicated axial direction conversion mechanism, and the manufacturing cost can be reduced. In addition, since the distance adjusting unit is provided for adjusting the distance between the first rotating members disposed to face each other according to the size of the mold, the distance can be adjusted according to the size of the mold. In addition, according to the height of the mold, a height adjustment unit is provided for adjusting the height of the workpiece to be sandwiched between the pair of upper and lower first rotating members. Can be adjusted.

Further, since a feed amount adjusting portion for adjusting the feed amount of the workpiece by adjusting the reciprocating range of the reciprocating member of the reciprocating portion is provided, the feed amount is adjusted according to the size of the die. Can be adjusted. Furthermore, since the adjustment of the feed amount of the workpiece is performed by using an elongated hole provided in the feed amount adjustment unit in parallel with the reciprocating direction of the reciprocating member and by positioning the workpiece at an arbitrary position in the elongated hole, The feed amount can be easily and reliably adjusted.

Further, since the converting portion converts the reciprocating motion force into the rotational motion force by means of a plate-shaped tooth profile provided on the reciprocating member of the reciprocating portion and a gear which rotates in one direction by engaging with the tooth profile, With such a configuration, the reciprocating motion force can be converted into the rotational motion force. The conversion unit has a pair of upper and lower second rotating members, sandwiches the reciprocating member of the reciprocating unit between the pair of second rotating members, and reciprocates the pair of second rotating members by the reciprocating motion of the reciprocating member. While one of the members rotates in one direction,
Since the second rotating member rotating in one direction is connected to the first rotating member, the reciprocating motion force can be converted into the rotational motion force with a simple configuration.

In addition, the outer peripheral surface of the second rotating member that rotates in one direction is formed in a gear, and the reciprocating member of the reciprocating portion is also formed with a tooth profile so as to engage with the gear. The reciprocating motion force can be converted into the rotational motion force. Further, since the reciprocating member of the reciprocating portion is driven to reciprocate by the air cylinder, the configuration can be simplified.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a strip material feeding device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration of a main part of the strip material feeding device according to the first embodiment of the present invention.

FIG. 3 is a perspective view showing details of a main part of the strip material feeding apparatus of FIG. 2;

FIG. 4 is a perspective view showing a conversion mechanism of a strip material feeding device according to a second embodiment of the present invention.

FIG. 5 is a perspective view showing a conversion mechanism of a strip material feeding device according to a third embodiment of the present invention.

FIG. 6 is a perspective view showing a conventional strip material feeding apparatus.

[Explanation of symbols]

24 mold, 25 strip material, 26 strip material feeder, 29 height adjustment screw, 32 air cylinder, 3
3 Feeding side feed plate, 33b rack, 34 Feed amount adjusting plate, 35 Feed amount adjusting plate, 37 Oval hole, 38 Feed amount adjusting plate mounting screw, 39 Feeding device, 41 One-way clutch built-in roll, 42 Material feed Lower roll, 43 Material feed upper roll, 44 Toothed belt, 55 Left and right roll spacing adjustment connecting plate, 56
Retraction side feed plate, 59 Retraction device, 61 Press roll.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takashi Oguro 1-8 Midoricho, Fukuyama City, Hiroshima Prefecture Inside Yamabishi Technica Co., Ltd. (72) Inventor Norio No. 1-8 Midorimachi, Fukuyama City, Hiroshima Prefecture Yamabishi Technica Co., Ltd. (72) Inventor Nobuyuki Fujiyama 1-8 Midoricho, Fukuyama City, Hiroshima Prefecture Yamabishi Technica Co., Ltd.

Claims (9)

[Claims] Claims: 1. A mold is disposed opposite to both sides of a mold,
A pair of upper and lower first rotating members for feeding the workpiece to the mold, a reciprocating unit having a reciprocating member for performing reciprocating motion, and a reciprocating motion force of the reciprocating member of the reciprocating portion to a rotational motion force in one direction. A conversion unit configured to convert and transmit to the first rotating member is provided, and a workpiece is sandwiched between the pair of upper and lower first rotating members to rotate the first rotating member. A workpiece feeder for feeding a workpiece to the mold. 2. The workpiece feeding device according to claim 1, further comprising an interval adjusting unit that adjusts an interval between the first rotating members disposed opposite to each other according to the size of the mold. apparatus. 3. A height adjusting unit for adjusting the height of a workpiece to be sandwiched between a pair of upper and lower first rotating members according to the height of the mold. 3. The workpiece feeder according to claim 1 or 2. 4. A feed amount adjusting section for adjusting a feed amount of a workpiece by adjusting a reciprocating range of a reciprocating member of a reciprocating portion. A workpiece feeder according to any one of the preceding claims. 5. A feed amount adjusting section is provided with an elongated hole parallel to the reciprocating direction of the reciprocating member, and a fixing member inserted into the elongated hole to fix the feed amount adjusting section is provided. The workpiece feeder according to claim 4, wherein the feed position of the workpiece is adjusted by changing the fixed position. 6. The conversion unit converts a reciprocating motion force into a rotational motion force by a flat tooth profile provided on a reciprocating member of the reciprocating unit and a gear engaging with the tooth profile and rotating in one direction. The workpiece feeder according to any one of claims 1 to 5. 7. The conversion section has a pair of upper and lower second rotating members, and a reciprocating member of the reciprocating portion is sandwiched between the pair of second rotating members, and the pair of second rotating members is reciprocated by the reciprocating member. The one of the second rotating members rotates in one direction, and the second rotating member rotating in the one direction is connected to the first rotating member. A workpiece feeder according to any one of the preceding claims. 8. The reciprocating member of the reciprocating portion is formed with a gear on an outer peripheral surface of a second rotating member that rotates in one direction, and a tooth profile is formed so as to engage with the gear. The workpiece feeding device according to claim 7, wherein 9. The member feeding device according to claim 1, wherein the reciprocating member of the reciprocating portion is reciprocally driven by an air cylinder.