JP2763769B2 - Lateral streak transfer structure in wire mesh working transverse streak feeder - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal bar supply device for a wire mesh making machine, and more particularly to a vertical bar for manufacturing a concrete reinforced cage used for construction. The present invention relates to a horizontal streak supply device that supplies horizontal streaks to a plurality of parallel vertical streaks sent out by an automatic streak feeder. In particular, the present invention relates to an improvement in a transfer structure of a horizontal streak from a belt to a horizontal streak accumulation chute in a horizontal streak supply device for carrying a horizontal streak cut in accordance with an arrangement width of a vertical streak into a horizontal streak accumulation chute via belt conveyance. 2. Description of the Related Art Conventionally, in a wire mesh making machine for a reinforcing bar cage of a concrete slab, a plurality of vertical streaks arranged in parallel are transferred by an automatic feeder, and according to the width of the wire mesh from a direction perpendicular to the vertical streaks. The horizontal streak cut to the length is sent to the welding position on the vertical streak,
Wire meshes for reinforced cages were manufactured by welding an appropriate number of horizontal bars to the vertical bar rows. [0003] In supplying such transverse streaks, conventionally, a large number of transverse streaks of a predetermined length are manufactured by a reinforcing bar cutting machine provided in another place in advance, and the plurality of transverse streaks are accumulated in a transverse streak pool.
The cam trochanter supplies the horizontal streak from the horizontal streak to the vertical streak row as needed (see JP-A-48-69273). [0004] However, according to the above-mentioned conventional technique, when the width of the wire mesh to be manufactured is changed, it is necessary to replace the horizontal streak of the horizontal streak in order to cope with the change. Required a lot of time and effort. In addition, there were cases where the horizontal streaks were entangled at the time of replacement of the horizontal streaks and could not be supplied satisfactorily. [0005] The object of the present invention is also changed when the width of the wire mesh of the reinforcing bar cage of the concrete slab changes (that is, when the interval between the vertical bars that are arranged in parallel and automatically transferred) changes. The horizontal streaks of the length according to the width
It is an object of the present invention to provide a horizontal streak supply device that can automatically supply vertical streak rows. In particular, the present invention provides a horizontal streak transfer structure capable of smoothly and reliably transferring a horizontal streak from a belt to a horizontal streak accumulation chute when a horizontal streak cut by a horizontal streak cutting device is carried into a horizontal streak accumulation chute via belt conveyance. It is in. According to the present invention, a horizontal streak cut in accordance with an arrangement width of a vertical streak is carried into a horizontal streak accumulation chute via a belt transport, and the horizontal streak accumulation chute is transferred from the horizontal streak accumulation row. A wire mesh feeder for sequentially feeding horizontal streaks to a welding position, wherein the horizontal streaks conveyed by the belt are fed to a belt (25).
In order to move from the top to the horizontal muscle accumulation chute (33, 33A)
A push member (28) is provided which can be switched between an upper position of the belt and a horizontal streak accumulation chute, and a groove (28a) extending parallel to the belt is formed on the lower surface side of the push member to form a wire mesh working horizontal streak supply device. A horizontal muscle transfer structure was constructed. (Operation) According to this configuration, the pushing member has a groove which opens on the lower surface side and extends in parallel with the belt. Therefore, when the pushing member is at the upper position of the belt, the upper surface of the belt and the inside of the groove are formed. A space for accommodating the lateral streaks conveyed by the belt is formed between the wall and the wall. When the horizontal streaks enter the accommodation space, the pushing member is moved (switched arrangement) from the position above the belt toward the horizontal streak accumulation chute. Then, while being pushed by the inner wall surface of the groove, the horizontal streak is transported in a direction substantially perpendicular to the traveling direction of the belt while rolling or skidding on the belt. At this time,
Since the transfer direction of the pressing member does not match the traveling direction of the belt, the horizontal streaks may jump on the belt or may be shifted obliquely. It controls the horizontal dance and misalignment. For this reason, the pushing member moves from the belt upper position toward the horizontal streak accumulation chute,
The horizontal streaks on the belt are smoothly and reliably fed into the horizontal streak accumulation chute. Next, an embodiment of the present invention will be described with reference to the drawings. In FIGS.
Is disposed above a vertical line automatic feeder (not shown), and a horizontal line cutting device 2 is provided above the automatic line feeder. The horizontal streak cutting device 2 includes a left bracket 3 having a lower end attached to a support first upper portion, and a right bracket 4 narrower than the left bracket 3. The left bracket 3 is located on the left end side of the support base 1. , And the right bracket 4 is located closer to the center than the right end of the support 1. Support plates 5 and 6 are provided upright on the upper portions of both brackets 3 and 4 at a predetermined interval. An angled stopper fixing member 7 is horizontally mounted so as to connect the upper portions of the two support plates 5 and 6. As shown in FIG. 2, the stopper fixing member 7 has a horizontal mounting portion 7a having a front surface 3 of the bracket 3 (or 4).
a (or 4a) projecting forward. On the lower surface of the mounting portion 7a, a plurality of operating cylinders 8 for operating a stopper 22, which will be described later, are arranged in parallel at predetermined intervals (seven in the example shown, and the other than the two cylinders at both ends are indicated by dashed lines). Installed. Each working cylinder 8
Has a rod 9 projecting downward.
A roller 10 is axially attached to the lower end of the shaft by a shaft 11 (see FIG. 3). A pair of left and right vertical plates 12 and 12A having the same shape are provided upright on the upper surface of the support base 1 near the left and right sides thereof. The front surfaces of the vertical plates 12 and 12A coincide with the front surfaces of the left and right brackets 3 and 4. Therefore, the upper part of the vertical plate 12 located in front of the left bracket 3 is embedded in the horizontal upper plate 3b of the left bracket 3, but the vertical plate 12A is closer to the end of the support base 1 than the right bracket. And is separate from the right bracket 4. As shown in FIGS. 2 to 4, below the mounting portion 7a of the stopper fixing member 7 and above the upper surface 3b of the bracket 3, a horizontal streak support member 13 having an L-shaped cross section is provided in parallel with the mounting portion 7a. A support shaft 14 attached to the rear surface of the vertical plate 13a is slidably supported by a bush 15 provided on the upper side of the vertical plate 12. The support shaft 14 is retracted within a predetermined range in a direction perpendicular to the vertical plate 12 by a cylinder 16 mounted on the upper surface 3 b of the bracket 3.
Similarly to the vertical plate 12, a support shaft 14 and a cylinder 16 for moving the horizontal streak support portion 13 are attached to the vertical plate 12A. The horizontal streak support member 13 has both sides projecting from the left side of the vertical plate 12 and the right side of the vertical plate 12A. An angle-shaped guide support member 17 having a vertical plate 17a parallel to the vertical plate 12 has an upper plate 17a with the vertical plate 17a protruding forward of the horizontal streak support member 13.
b is attached to the upper surface of the vertical plate 12 by an appropriate number of bolts 18, and a predetermined gap is formed between the front surface of the vertical plate 12 and the rear surface of the vertical plate 17a. The upper bearing 19 and the lower bearing 2 protrude from the back surface of the standing plate 17a.
0 are arranged above and below. A guide support member 17 is attached to the upper portion of the vertical plate 12A, similarly to the vertical plate 12. And the horizontal streak guide 2 is formed by the upper and lower bearings 19 and 20 of the guide support member 17 attached to the vertical plates 12 and 12A, respectively.
1 is supported and is movable in its longitudinal direction.
As shown in FIG. 4, the horizontal streak guide 21 has an engagement surface that engages with the L-shaped upper surface of the horizontal streak support member 13, and a linear iron wire W is guided on the lower surface of the engagement surface. Guide groove 21a is formed. As shown in FIG. 3, a stopper 22 having a rod 22a penetrating its upper surface and having a lower end protruding into the guide groove 21a is provided below the stopper fixing member 7 at a position below the stopper fixing member 7. As shown in FIG. Installed. The stopper 22 is provided at the upper end of the rod 22a.
A receiving plate 22b having a groove engageable with the roller 10 of the stopper fixing member 7 is horizontally fixed. The stopper 22 has the lower surface of the receiving plate 22b constantly pushed up by the compression spring 23, and the lower end of the rod 22a is located above the guide groove 21a when the operating cylinder 8 is not operated. As shown in FIG. 1, a cutting machine 24 is connected to an end 21c of the horizontal streak guide 21 projecting rightward from the vertical plate 21A. 21 and is supported by the upper surface of the lateral streak support member 13. Iron wire W
Is cut by the lowering of a blade 24a of a conventionally known cutting machine 24. An endless belt 25 is provided below the horizontal streak guide 21 in parallel with the horizontal streak guide 21.
reference). As shown in FIG. 5, the endless belt 25 is wound around a pulley 26 rotated by a motor M located to the left of the horizontal streak guide 21 and a pulley 27 located below and near the cutter 24. The upper belt advances in the direction of arrow A. Reference numeral 28 denotes a pushing member having a groove 28a having an inverted U-shaped cross section. The pushing member 28 extends along the endless belt 25 and is usually close to the upper surface of the endless belt 25 as shown in FIG. (The position of the pressing member 28 shown in FIG. 10 is the belt upper position). As shown in FIG. 5, the pressing member 28 is also disposed slightly offset from the center to the motor M side. The pressing member 28 has a pair of bars 29, 29 fixed to the rear surface thereof, and a support plate 1 </ b> A on which the support base 1 is attached.
On the other hand, a pair of left and right cylindrical bushes 30 fixed to the front of the endless belt 25 are slidably supported. In other words, the pressing member 28 is connected to the endless belt 25.
Is attached so as to be able to approach and separate from the support plate 1A provided along the line. A cylinder 31 is mounted between the bushes 30, 30 of the support plate 1A, and a rod 31a of the cylinder 31 is mounted on a pushing member 28. When the cylinder 31 is actuated, the rod 31a is protruded to move the pushing member 28 to the position shown by the two-dot chain line in FIG. Reference numeral 32 denotes a horizontal streak stopper attached to the upper surface of the motor M side end of the support plate 1A, which stops the horizontal streak W1 (cut from the iron wire W) conveyed by the endless belt 25. And horizontal line stopper 3
The horizontal streak W1 stopped by the endless belt 2 is pushed by the pushing member 28 by the operation of the cylinder 31.
Fall from 5. Then, the horizontal streak W1 is sent into a horizontal streak accumulation chute (33, 33A) described later. Below the endless belt 25, as shown in FIG. 6 (the left and right sides are inverted from FIG. 5), channel-like transverse muscle shoots 33 and 33A are attached to the inclined upper surfaces 34a and 35a, respectively. Left and right chute support members 3
There are 4 and 35. These are the members that constitute the horizontal muscle accumulation chute. Here, the transverse muscle shoots 33, 33A have grooves 33a, 3 of a width necessary for sliding only one transverse muscle W1.
It has a U-shaped cross section having 3Aa, and is attached to the chute support members 34, 35 with both grooves facing each other. The left chute support member 34 has an endless belt 2
A screw shaft 36 parallel to 5 is screwed in. One end of the screw shaft 36 is rotatably supported by two bearings 37 provided on a right chute support member 35 fixed below the horizontal streak stopper 32. (See FIG. 7). Since the right chute support member 35 is located below the horizontal streak stopper 32, the horizontal streak chute 33A can receive the tip of the horizontal streak W1 that falls from the endless belt 25. A pulley 38 is attached to the other end of the screw shaft 36, and an intermediate portion between the pulley 38 and the left chute support member 34 is supported by a bearing member 39. The left chute support member 34 is guided by a pair of upper and lower lateral guides 40 and 40A arranged in parallel with the screw shaft 36. When the pulley 38 is rotated by a belt (not shown), the right chute support member 35 Or it is moved in the opposite direction. Below the screw shaft 36, a spline shaft 41 parallel to the screw shaft 36 and longer than the screw shaft 36 is provided. The spline shaft 41 is rotatably supported at one end by a left bearing 42 located below the pulley 38 and at the other end by a right bearing 42A located to the right of the right chute support member 35. The spline shaft 41 is provided with a pair of two lateral streak supply cams 43 and 43A. Left lateral muscle supply cam 4
3 is movable in the axial direction of the spline shaft 41. On the other hand, the right lateral muscle supply cam 43A is located slightly to the right of the center of the right chute support member 35, and is fixed to the spline shaft 41 via a key 45 (see FIG. 8). Each of the left and right lateral streak supply cams 43, 43A is provided with one cam groove 44, 44A having an arcuate outer circumferential surface in the axial direction. The left transverse streak supply cam 43 has its left bearing 42
A connecting plate 46 is fixed to the side surface.
The left lateral muscle supply cam 43 is connected to the left chute support member 34 via
It is connected to. The connecting plate 46 is connected to the chute support member 34 in such a manner that the left lateral streak supply cam 43 can be rotated as described later. And the left chute support member 3
When the pulley 38 rotates in the axial direction of the screw shaft 36 by the rotation of the pulley 38, the left lateral streak supply cam 43 is moved on the spline shaft 41 by the connecting plate 46 in the same direction as the left chute support member 34. The right lateral streak supply cam 43A of the spline shaft 41
A gear 47 is attached between the right bearing 42A and the right bearing 42A. The gear 47 meshes with a rack 48 moved by a cylinder 49. And the cylinder 47
Operates, the rack 48 is pushed out in the downward direction, and the gear 47 rotates clockwise in FIG.
The horizontal streak supply cams 43 and 43A also rotate in the same direction. Below the horizontal streak supply cams 43, 43A, the upper and lower electrodes 50, 50, which are arranged in a larger number than the number of vertical streaks of the wire mesh.
A lower chute 51 for guiding the horizontal streak is provided at the welding position A (see FIG. 10). The magnet blocks 52 are arranged between the lower electrodes 50A. Next, the operation state of the above-described device will be described. After selecting the stopper 22 at a position suitable for cutting the horizontal streak W1 corresponding to the width of the wire mesh to be manufactured, the operating cylinder 8 is operated to push down the stopper 22, and the rod 22a is moved to the guide groove of the horizontal streak guide 21. 21
a. At this time, the support shaft 14 is
, And the horizontal streak support member 13 at the tip of the support shaft 14 is engaged with the horizontal streak guide 21. On the other hand, the left shoot supporting member 34 rotates the pulley 38 so that the transverse streak 33 is moved to the selected stopper 22.
And in the vicinity of the upper endless belt 25. Next, the iron wire W inserted into the guide groove 21a from the cutting machine 24 side is automatically pushed in, and
, The tip of which is the rod 2 of the stopper 22.
When it comes into contact with 2a, the blade 24a of the cutting machine 24 cuts the iron wire W. At the same time, the cylinder 16 operates to retract the support shaft 14, so that the lateral muscle support member 13 and the lateral muscle guide 2
1 and the horizontal streak W1 falls on the upper surface of the endless belt 25. In this case, since the cross-sectional shape of the guide groove 21a provided at the position of the standing plate 17 on both sides is inverted U-shaped (see FIG. 4), the horizontal streak W1 falls straight. Since the endless belt 25 is moving in the direction of arrow A in FIG. 1, the horizontal streak W1 passes through the groove 28a (see FIG. 10) of the pushing member 28, and its tip abuts on the horizontal streak stopper 32. . At the same time, the cylinder 31 operates to push the pushing member 28 at the upper position of the belt in the direction shown by the two-dot chain line in FIG. 5 (the direction of the horizontal streak accumulation chute), so that the horizontal streak W1 falls from the endless belt 25. The tip of the dropped horizontal streak W1 enters the groove 33Aa of the fixed lateral streak chute 33A, the rear end thereof enters the groove 33a of the horizontal streak chute 33 on the moving side, and slides down both grooves to the lower end thereof. The pushing member 28 for dropping the horizontal streak W1 onto the chute is a groove 28 having an inverted U-shaped cross section.
Since the horizontal stripe is held in the inverted U-shaped groove and dropped on the chute, the horizontal stripe does not jump or shift obliquely before being fed into the chute. In this manner, the horizontal streak W1 cut to the same length by the horizontal streak cutting device 2 is sequentially used for both the horizontal streak shoots 33,
33A, and the lowermost horizontal streak W1
Are the cam grooves 44, 44 of the left and right horizontal streak supply cams 43, 43A.
Located in A. At this time, as shown in FIG. 10, when an appropriate number of the vertical streaks W2 arranged in parallel are transferred horizontally in the direction of the lower electrode 50A and stopped at the welding position of the horizontal streaks, the cylinder 49 pushes out the rack 48 and the gear Rotate 47 clockwise. The spline shaft 41 also rotates in the same direction by the rotation of the gear 47, and the horizontal streak supply cams 43 and 43A holding one horizontal streak W1 rotate in the same direction, and the cam grooves 44 and 44 thereof.
When A is directed downward, the horizontal streak W1 in both cam grooves 44, 44A falls onto the lower chute 51. The rebar W1 that has fallen on the lower chute 51 slides on the upper surface and reaches above the lower electrode 50A, where it is attracted to each magnet block 52 and pressed against the upper surface of the welding position of the vertical rebar W2. At this time, the upper electrodes 50 are simultaneously lowered to weld the contact portions between the vertical stripes W2 and the horizontal stripes W1.
When the required number of horizontal streaks W1 are sequentially welded to the rows of the vertical streaks W2 in this manner, a wire mesh (not shown) is formed. And
The operations of the above-described cylinders, motors, and the like are automatically performed by a computer (not shown) and various sensors. Next, when the width of the wire mesh changes, the length of the horizontal streak W1 changes. Therefore, a stopper 22 for lowering the horizontal streak cutting machine 2 is selected according to the length. Next, the pulley 38 is rotated to move the left chute support member 34 on the moving side.
Is moved from the endless belt 25 to a position where the cut end of the horizontal streak W1 to be dropped from the endless belt 25 enters the groove 33a of the horizontal streak chute 33, the left horizontal streak supply cam 43 is also moved at the same time. Becomes possible. In the above-described embodiment, a plurality of stoppers 22 for stopping the distal end of the iron wire W when the iron wire W is cut are provided as a fixed type, but the stopper is moved to a predetermined position on the stopper fixing member 7 to be moved. If it can be fixed, only one stopper needs to be provided. As described above in detail, according to the present invention, in the wire mesh working horizontal streak supply device, a push member which can be switched between the upper position of the belt and the horizontal streak accumulation chute is provided.
Since a groove extending in parallel with the belt is formed on the lower surface side of the pushing member, the lateral streaks jump on the belt when the lateral streak that has been conveyed into the groove and conveyed into the groove is transferred by the pushing member toward the transverse streak accumulation chute. No slanting or slanting. Therefore, the horizontal streaks on the belt can be smoothly and reliably fed into the horizontal streak accumulation chute while maintaining a parallel relationship with the belt. In this way, when the horizontal stripes are transferred from the conveyor belt to the horizontal stripe accumulation shoot, the horizontal stripes are prevented from being entangled and clogged in the apparatus, so that the cutting device for cutting the iron wire to an arbitrary length upstream of the conveyor belt. Is provided, there is an excellent effect that it is possible to automatically manufacture a wire net having different widths as a series of processes.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a horizontal streak supply device. FIG. 2 is a side view of the apparatus of FIG. FIG. 3 is an enlarged view of a stopper portion 22 of FIG. 2; FIG. 4 is an enlarged view of the horizontal streak support member 13 of FIG. FIG. 5 is a plan view of a pressing member and its periphery. FIG. 6 is a front view showing a transverse muscle chute, a transverse muscle supply cam, and a supporting portion thereof. FIG. 7 is a front view of a transverse muscle shoot and a transverse muscle supply cam. FIG. 8 is a front view showing a partial cross-section of a lateral streak supply cam and a supporting portion thereof. FIG. 9 is an enlarged side view of a rotation mechanism of the horizontal streak supply cam 43 in FIG. 8; FIG. 10 is a schematic explanatory view showing a relationship between a belt 25, a pushing member 28, and a transverse muscle chute. [Description of References] 2 is a horizontal line cutting device, 25 is an endless belt, 28 is a pressing member, 28a is a groove (an inverted U-shaped cross section), 29 is a bar, 30 is a cylindrical bush, 31 is a cylinder, 31a is a rod, 3
3, 33A are a pair of horizontal muscle shoots constituting a horizontal muscle accumulation shoot, W1 is a horizontal muscle, and W2 is a vertical muscle.

Claims (1)

(57) [Claims] A wire mesh producing horizontal streak supply device that transports a horizontal streak cut in accordance with the arrangement width of the vertical streak to a horizontal streak accumulation chute via belt conveyance, and sequentially supplies the horizontal streak from this horizontal streak accumulation chute to a welding position on a vertical streak row. In order to transfer the horizontal streaks conveyed to the belt from the belt to the horizontal streak accumulation chute, a push member that can be switched between an upper position of the belt and the horizontal streak accumulation chute is provided, and a lower surface of the push member is parallel to the belt. A horizontal streak transfer structure in a wire netting horizontal streak supply device, characterized in that a groove extending in a direction is formed.