JP6591218B2 - Continuous screw tightening machine with washer stack supply mechanism - Google Patents

Description

  The present invention relates to a continuous screw tightening machine with a washer stack supply mechanism, and more specifically, in a state where the screw penetrates the hole of the washer, the screw and the washer can be simultaneously tightened and fixed to a tightening target location, The present invention relates to a continuous screw tightening machine with a washer stacked supply mechanism that realizes a stable supply of washers one by one and prevents the washer from being blown or double shot.

  For example, in the case of a roof gutter or the like, it is necessary to tighten the screw and the washer to a target position of the roof gutter member in a state where the screw penetrates the hole of the washer.

  As a continuous screw clamping machine with a washer lamination supply mechanism in such a field, a washer distribution and fastener screwing machine disclosed in Patent Document 1 are known.

  This washer distribution, fastener screwing machine (i.e., screw tightening machine) is configured to distribute the washers individually from similar roof gutter washer products that can be stacked.

  That is, this washer distribution and fastener screwing machine includes a base, a shuttle, an elongated stop, a gate, and a claw. One washer is supplied to the shuttle from the lower outlet of the base, and the washer received by the shuttle passes through the gate, When the shuttle is moved to the next position and moved to receive the next washer again, the previous washer is held by the pawl so that it does not move, and the screw on the base causes the screw to move to the center of the previous washer. It is configured to be screwed into a hole and fixed at a target location.

  However, in the case of the washer distribution and fastener screwing machine of Patent Document 1, the overall size is large and the weight is large, so that the working speed is slow, and the washers are stacked and supplied one by one even though they are in the preparation position. It must be cumbersome, both the screw and the washer at the fastening preparation position are not visible from the outside, it is difficult to prevent the fastening failure, and the screw is supplied manually one by one, so it is inconvenient. In addition, there are cases where the washer is pressurized with a weight, and there is a possibility that the washer may drop during transportation.

JP 7-76911 A

  The problem to be solved by the present invention is that these screws and the washer can be tightened and fixed to the tightening target at the same time in a state where the screws penetrate the hole of the washer, and the screws necessary for the tightening work, A continuous screw tightening machine with a washer stacking supply mechanism that can automatically and continuously supply washers one by one, and realizes a stable supply of each washer, preventing the washer from being blown or double shot. Is a point that does not exist in the past.

The continuous screw tightening machine with a washer-stacked supply mechanism according to the present invention is equipped with a driving machine, and is a tightening mechanism in which a screw tightening bit that is rotationally driven by the driving machine is detachably and rotatably connected. A main body of the machine, a tightening machine main body guide mechanism for moving the fastening machine main body forward and backward through a standby position and an advanced position in which the bit is advanced so as to be disposed at a position where the screw can be tightened; A movable latch portion is provided below the auxiliary machine body guide mechanism and accommodates a single washer having a hole through which the screw is inserted so that the washer can be pulled out downward, and restricts movement of the loaded washer in the feeding direction. a temporary housing unit washer supported pivotably latch piece arranged axially supported pins at the periphery of the washer temporary housing unit in the advance and retreat direction of the washer feed member To together comprises a standing position the latch piece under the action of the biasing force of the coil spring wound around the axially supported pins, the movable latch part configured so as to movable over a position inclined to the temporary housing part side washer A tip block that has a washer temporary storage portion and a base plate on which a large number of the washers can be placed in a stacked arrangement, and is disposed on a tightening target portion; the tightening machine main body guide mechanism; and the tip block; A screw having a large number of washer receiving areas arranged on the rear side, a washer supply mechanism main body, a washer-feeding pressing rod interlocked with the tightening machine main body, the screw and the washer A pivot lever incorporated from the side to the bottom of the housing area of the supply mechanism body and pivoting in conjunction with the washer-feeding press rod; and the washer Along with the backward movement of the feeding pressing rod, the lowermost washer among the multiple washers stacked on the base plate and housed in the washer supply mechanism main body is moved to the washer temporary housing portion. A washer feeder that automatically supplies a washer feeder having an arc-shaped contact portion corresponding to the outer shape of the washer and having a seat surface portion on which the washer is placed. Slide the base plate of the block to automatically supply the washer on the seating surface to the washer temporary storage, and interlock with the pivot lever in conjunction with the advancement of the washer-feeding press rod to the advance position. A washer sequential supply mechanism for automatically returning the washed washer feeder to the supply preparation position of the next one washer, and a number of screws. A screw rope magazine which is removably disposed on the rear side of the washer supply mechanism main body and a screw rope press which is interlocked with the tightening machine main body. And a screw feed claw that is incorporated in the screw and the washer supply mechanism main body and moves in conjunction with the screw feed pressing rod, so that the bit of the clamping machine main body can be tightened. A supply preparation position for one of the screws of the screw rope to which the feed claw is supplied from the screw rope magazine in accordance with the movement of the screw feed pressing rod interlocked with the movement of the screw to the correct position. The screw that follows is moved in accordance with the backward movement of the screw feed pressing rod interlocked with the backward movement of the tightening machine body to the standby position. A screw sequential supply mechanism that automatically supplies a screw in order so as to be concentrically arranged between the holes of the washer, and rotationally driven by the driver with respect to the bit advanced to the position capable of being tightened. The most important feature is that the screw is configured to be separated from the washer temporary housing portion downward together with the washer whose position is regulated by the movable latch portion, and to be fastened and fixed to a place to be fastened.

According to the first aspect of the present invention, in conjunction with the backward movement of the tightening machine main body, the washer is supplied to the washer temporary housing portion including the movable latch portion having the above-described configuration by the washer feeder of the washer sequential supply mechanism. And a single screw connected to the screw rope from the screw rope magazine by the screw sequential supply mechanism so as to be concentrically disposed between the washer and the bit. In conjunction with the tightening operation, the washer sequential supply mechanism is configured to prepare for feeding the subsequent washer, and the sequential screw supply mechanism is configured to prepare for feeding the subsequent screw. The operation can be performed efficiently in order and continuously, and the screw and washer supply mechanism The washers are stacked and stored in the storage area of the machine, and the screw and washer supply mechanism main body also contains the main parts of the screw sequential supply mechanism and the washer sequential supply mechanism. member little, can be configured compact and lightweight as a whole, can contribute greatly to the improvement of working speed, moreover, the feed direction of the washer, which is loaded in the tip block the movable latch for restricting the movement in the opposite direction In addition, the washer feeder is provided with a washer temporary housing portion, and the washer feeder is provided with an arc-shaped contact portion corresponding to the outer shape of the washer and a seat surface portion on which the washer is placed. The washer can be fed in one sheet at a time. It is possible to prevent the over clogged, further realized washers ineffective and washers two beating washers stacked supply mechanism with a continuous screw tightening machine capable of preventing may also be provided.

According to a second aspect of the present invention, in the first aspect of the invention, the washer feeder has a thin and narrow return claw that covers a part of the outer peripheral upper surface of the washer on the seat surface portion without restraining it. Since the structure is provided, it is possible to realize and provide a continuous screw tightening machine with a washer stack supply mechanism capable of more stably and reliably feeding the washer into the washer temporary housing portion by the washer feeder.

  According to the invention described in claim 3, the effect of the invention described in claim 1 or 2 is obtained, and the washer is independently fed by manual operation of the independent operation lever interlocked with the washer sequential supply mechanism instead of the main body of the tightening machine. Since the washer is emptied first, it is possible to set the washer alone to the position where it can be tightened, and it is possible to feed only the washer when the screw and washer are loaded. A continuous screw tightening machine with a mechanism can be realized and provided.

  According to the invention described in claim 4, the effects of the invention described in any one of claims 1 to 3 can be achieved, and the side surfaces of the storage areas of a number of washers arranged in layers on the screw and washer supply mechanism main body can be provided. Equipped with a lid that opens and closes, and a washer restraining piece that holds down the top of a number of washers in a stacked arrangement, making it easy to set in the storage area, and with a washer stacking supply mechanism that does not worry about washer dropping A screw tightening machine can be realized and provided.

FIG. 1 is a schematic right side view showing an overall configuration of a continuous screw tightening machine with a washer stacked supply mechanism according to an embodiment of the present invention. FIG. 2 is a schematic view showing a tightening machine main body, a tightening machine main body guide mechanism in a state in which a screw rope magazine is removed, a screw and washer supply mechanism main body, and a tip block in a continuous screw tightening machine with a washer laminated supply mechanism according to the present embodiment. It is a perspective view. FIG. 3 is a schematic plan view of a tightening machine main body guide mechanism, a screw and washer supply mechanism main body, and a tip block in a continuous screw tightening machine with a washer stack supply mechanism according to the present embodiment. FIG. 4 is a schematic plan view of a tightening machine main body guide mechanism, a screw and a washer supply mechanism main body, and a tip block in a state where a lid is opened in the continuous screw tightening machine with a washer stacked supply mechanism according to the present embodiment. FIG. 5 is a schematic rear view of a tightening machine main body guide mechanism, a screw and washer supply mechanism main body, and a tip block in a continuous screw tightening machine with a washer stacked supply mechanism according to the present embodiment. FIG. 6 is a schematic bottom view of a front end block, a screw, and a washer supply mechanism main body in a continuous screw tightening machine with a washer lamination supply mechanism according to the present embodiment. 7 is a cross-sectional view taken along line AA in FIG. FIG. 8 is a schematic left side view of a tightening machine main body guide mechanism, a screw and washer supply mechanism main body, and a tip block in a continuous screw tightening machine with a washer stacked supply mechanism according to the present embodiment. FIG. 9 is a schematic perspective view showing the internal structure of the screw and the washer supply mechanism main body in the continuous screw tightening machine with the washer laminated supply mechanism according to the present embodiment as viewed obliquely from the front. FIG. 10 is a schematic perspective view showing the internal structure of the screw and the washer supply mechanism body in the continuous screw tightening machine with the washer lamination supply mechanism according to the present embodiment as viewed obliquely from the rear. FIG. 11 is a schematic perspective view showing main parts of the screw sequential supply mechanism and the washer sequential supply mechanism in the continuous screw tightening machine with the washer stacked supply mechanism according to the present embodiment as viewed obliquely from the front. FIG. 12 is a schematic perspective view showing a main part of the screw sequential supply mechanism and the washer sequential supply mechanism in the continuous screw tightening machine with the washer stacked supply mechanism according to the present embodiment as viewed obliquely from the rear. FIG. 13 is an explanatory view showing the rotating state of the rotating lever of the washer sequential supply mechanism and the washer feeding operation in the continuous screw tightening machine with the washer stacked supply mechanism according to this embodiment. FIG. 14 is a perspective view of a washer sequential supply mechanism showing a base plate of a tip block in a continuous screw tightening machine with a washer lamination supply mechanism according to the present embodiment. FIG. 15 is a bottom view showing the base plate of the front end block in the continuous screw tightening machine with a washer lamination supply mechanism according to the present embodiment. FIG. 16 is a schematic perspective view showing a part of a screw sequential supply mechanism in a continuous screw tightening machine with a washer lamination supply mechanism according to the present embodiment. FIG. 17: is a schematic bottom view which shows the connection state of the screw rope to the screw feed unit in the continuous screw tightening machine with a washer laminated supply mechanism according to the present embodiment. FIG. 18 is a schematic cross-sectional view showing a screw rope magazine in a continuous screw tightening machine with a washer stacked supply mechanism according to this embodiment. FIG. 19 is a partial cross-sectional view showing a state in which a screw rope is unwound from a screw rope magazine in a continuous screw tightening machine with a washer stacked supply mechanism according to the present embodiment. FIG. 20 is a schematic cross-sectional view showing a state in which a screw and a washer are fastened to a place to be fastened by a continuous screw fastening machine with a washer stacked supply mechanism according to this embodiment. FIG. 21 is a flowchart showing the flow of operations for tightening screws and washers in a continuous screw tightening machine with a washer stack supply mechanism according to this embodiment. FIG. 22 is a schematic perspective view showing a main part of the screw sequential supply mechanism in the continuous screw tightening machine with the washer stacked supply mechanism according to the present embodiment and the washer sequential supply mechanism according to the modification as seen obliquely from the rear. FIG. 23 is a schematic perspective view of a washer feeder in a washer sequential supply mechanism according to a modification. FIG. 24 is a schematic plan view of a washer feeder in a washer sequential supply mechanism according to a modification. 25 is a cross-sectional view taken along line AA of the washer feeder shown in FIG. FIG. 26 is a schematic plan view showing a state in the middle of the washer feeding of the tip block and the washer feeder in the washer sequential supply mechanism according to the modification. 27 is a cross-sectional view taken along line BB in FIG. FIG. 28 is a schematic plan view showing a state in which the tip block and the washer feeder in the washer sequential supply mechanism according to the modified example are moved backward. 29 is a cross-sectional view taken along the line CC of FIG. FIG. 30 is an operation explanatory view showing a state in which a screw, a washer is driven, a washer is fed, and a washer is loaded into a tip block in a continuous screw tightening machine with a washer stacked supply mechanism including a washer sequential supply mechanism according to a modification. FIG. 31 is an operation explanatory view showing the operation from the washer feeding to the tip block by the washer feeder to the backward movement and the operation of the movable latch portion in the washer sequential supply mechanism according to the modification.

In the present invention, these screws and washers can be fastened and fixed simultaneously to the place to be tightened with the screws passing through the holes of the washers, and the screws and washers necessary for the tightening work are sequentially and continuously. The purpose is to realize and provide a continuous screw tightening machine with a washer stack supply mechanism that can supply automatically to each washer, realize stable supply of each washer one by one, and prevent the washer from being blown or double shot. And a tightening machine main body that is detachably and rotatably connected to a screw tightening bit that is rotationally driven by the driving machine, the fastening machine main body, the standby position, and the A tightening machine main body guide mechanism for moving the bit forward and backward so that the bit is arranged at a position where the screw can be tightened, and under the tightening machine main body guide mechanism Provided, the one of the washers having holes for inserting the screws as well as capable of accommodating escape downward, a washer temporary housing unit comprises a movable latch portion for restricting the movement in the feeding direction of the loaded washer The support pin is disposed on the outer peripheral portion of the washer temporary housing portion to support the latch piece so as to be rotatable in the forward / backward direction of the washer feeder, and the action of the urging force of the coil spring wound around the support pin. A washer temporary storage part having a movable latch part configured to be movable between a standing position and a position inclined to the washer temporary storage part side below, and a large number of the washers can be placed in a stacked arrangement. A leading end block disposed on a tightening target portion, the tightening machine main body guide mechanism, and the leading end block. A screw and a washer supply mechanism main body having a plurality of the washer receiving areas arranged and stacked on the rear side, a washer feed pressing rod interlocked with the tightening machine main body, the screw and the washer supply mechanism main body The rotating lever is incorporated from the side to the lower part of the housing area and rotates in conjunction with the washer-feeding pressing rod, and is laminated on the base plate in accordance with the backward movement of the washer-feeding pressing rod. A washer feeder that automatically supplies the lowermost washer among the plurality of washers housed in the screw and washer supply mechanism main body to the washer temporary housing portion, and corresponds to the outer shape of the washer. A washer feeder comprising a seat surface portion on which a washer is placed, and a washer feeder. The rotation lever is slid on the base plate of the tip block to automatically supply the washer on the seating surface portion to the washer temporary housing portion, and in conjunction with the advancing movement of the washer feed pressing rod to the advancing position. A washer sequential supply mechanism that automatically returns the washer feeder linked to the first one to the supply preparation position of the next one washer, and a screw rope in which a number of screws are connected at regular intervals by a belt-like member so as to be fed out. And a screw rope magazine detachably disposed on the rear side of the screw and the washer supply mechanism main body, a screw feed pressing rod interlocked with the tightening machine main body, the screw and the washer supply mechanism main body, A screw feed claw that moves in conjunction with the screw feed pressing rod, and tightens the bit of the fastening machine body. Preparation for supply of one of the screws of the screw rope supplied with the feed claw from the screw rope magazine in accordance with the movement of the screw feed pressing rod interlocking with the movement to the active position As the screw feed pressing rod moves backward to the standby position of the tightening machine main body and automatically moves to the standby position, the screw that follows is screwed into the hole of the washer by the feed claw. A screw sequential supply mechanism that automatically supplies the screw in order so as to be concentrically disposed between the screw and the screw driven by the driving machine with respect to the bit advanced to the tightenable position. This is realized by a configuration in which the washer whose position is regulated by the movable latch portion is separated downward from the washer temporary housing portion and is fastened and fixed to a place to be tightened.

  Hereinafter, a continuous screw clamping machine with a washer lamination supply mechanism according to an embodiment of the present invention will be described in detail with reference to the drawings.

  In the present embodiment, the basic configuration and operation of the continuous clamping machine with a washer stack supply mechanism according to the present embodiment will be described with reference to FIGS. 1 to 21, and further to FIGS. The configuration and operation of the washer sequential supply mechanism of the continuous tightening machine with the washer stack supply mechanism will be described in detail as a modification.

  As shown in FIGS. 1 and 2, the continuous screw tightening machine 1 with a washer stacked supply mechanism according to the present embodiment is equipped with a driving machine (not shown) and is screw driven and rotated by the driving machine. The fastening machine body 2 detachably and rotatably connected thereto, the fastening machine body 2 is placed in a standby position, and the bit 3 is placed in a position where the screw S can be fastened. A clamping machine main body guide mechanism 11 that moves forward and backward over the advanced position, and a washer W provided below the clamping machine main body guide mechanism 11 and having a hole Wa through which the screw S is inserted. A washer temporary storage portion 32 that is detachably accommodated, and a base plate 33 on which a large number of washers W can be placed in a stacked arrangement. A screw and washer supply mechanism main body 51 disposed between the machine main body guide mechanism 11 and the tip block 31, and a screw and washer supply mechanism main body 51 are incorporated into the main body guide mechanism 11 to move the clamping machine main body 2 back to the standby position. As shown in FIG. 12, the lowermost washer W among the multiple washers W stacked on the base plate 33 and accommodated in the washer supply mechanism main body 51 is connected to the washer feeder 70 as shown in FIG. The washer sequential supply mechanism 71 that slides on the base plate 33 of the tip block 31 and supplies it to the washer temporary storage portion 32 and the screw rope 102 in which a number of screws S are connected at regular intervals by the belt-like member 103 are accommodated so as to be fed out. And a screw rope magazine 101 detachably disposed on the rear side of the screw and washer supply mechanism main body 51; Each screw S of the screw rope 102 incorporated in the screw and washer supply mechanism main body 51 and supplied from the screw rope magazine 101 is interlocked with the movement of the bit 3 in the tightening machine main body 2 to a position where it can be tightened. And a screw sequential supply mechanism 111 that sequentially supplies one by one so as to be concentrically arranged in a region between the tip of the bit 3 and the hole Wa of the washer W.

  The tightening machine body 2 projects a bit 3 for tightening a screw S vertically downward, and a grip handle 7 for an operator can be attached to and detached from the upper side of the tightening machine body 2 as necessary. It can be installed.

  Further, although not shown in the drawings, the tightening machine main body 2 incorporates a drive (motor), a reducer, a clutch, and the like for rotationally driving the bit 3, and the bit 3 is detachably attached to the clutch. It is composed. The bit 3 is a member corresponding to a driver of a general tool, and has a hexagonal shaft in cross-sectional shape.

  Engaging protrusions 3a as shown in FIGS. 5 and 9 are formed at both ends of the bit 3 so as to engage with an engaging groove of the head of the screw S, for example, a + groove. Grooves 3b are formed in the circumferential direction in the vicinity of the mating projections 3a so as to engage with chucks disposed at the lower part of the clutch. FIG. 9 shows a state in which the lower end of the bit 3 is exposed.

  The bit 3 can be used with its front and rear positions changed according to the wear of the engaging projections 3a at both ends, and when both the engaging projections 3a are worn, a new bit 3 can be used. It is used by exchanging.

  Further, as shown in FIG. 1, the tightening machine main body 2 is connected to a commercial power supply and connected to a power cable 4 with a plug 5 for supplying a required power to the driving machine. A trigger switch 6 is provided for starting the motor.

  As shown in FIG. 2, the tightening machine main body guide mechanism 11 includes an upper slide mounting portion 12 attached to the lower portion of the tightening machine main body 2 and a lower mounting portion 13 attached to the upper portion of the screw feed unit 112 described later. It has.

  The lower mounting part 13 attached to the upper part of the substantially box-shaped screw feed unit 112 constituting the screw sequential supply mechanism 111 integrally provided on the front surface of the screw and washer supply mechanism main body 51, and the upper side is the upper slide attachment It has a pair of guide poles 14 and 14 arranged in parallel so as to slidably penetrate the portion 12 and have a lower end fixed to the lower mounting portion 13.

  That is, the upper slide mounting portion 12 is configured to slide up and down while being guided by the pair of guide poles 14 and 14 in a state where the tightening machine body 2 is mounted.

  Further, a bit 3 protruding from the clamping machine body 2 is arranged vertically downward at the center position of the pair of guide poles 14 and 14 and moves up and down together with the clamping machine body 2, Accordingly, the fastening machine main body 2 itself is moved forward and backward over the standby position shown in FIG. 1 and the advanced position in which the bit 3 is advanced so as to be disposed at a position where the screw S can be tightened (described later) ( It is configured to move up and down).

  Although not shown, the pair of guide poles 14 and 14 incorporates an elastic material such as a coil spring that constantly urges the tightening machine body 2 toward the standby position.

  Next, the tip block 31 will be described with reference to FIGS. 2, 9, 14, and 15.

  The tip block 31 is provided below the tightening machine main body guide mechanism 11, and isher washer temporary storage having a circular hole shape for receiving a single washer W having a hole Wa through which the screw S is inserted so that the screw S can be pulled out downward. Portion 32, base plate 33 on which a large number of washers are integrated with this washer temporary storage portion 32, and a bit guide fixed to base plate 33 above the washer temporary storage portion 32 in base plate 33. A body 34 and a slide recess 35 provided on the upper surface of the base plate 33 and on the rear side of the bit guide body 34 for sliding the washer feeder 70 in the length direction of the base plate 33; A long hole 36 for guiding the washer feeder 70 provided at the center in the length direction of the slide recess 35 is provided.

  Further, the washer W is temporarily supported on the circular peripheral wall of the washer temporary housing portion 32 of the tip block 31, and the washer W is moved below the washer temporary housing portion 32 when a downward pressing force is applied. A latch portion 37 for disengagement is disposed.

  The bit guide body 34 includes a substantially semicircular recess 38a and a vertical upright 38b through which the bit 3 can be inserted above the washer temporary storage portion 32.

  Next, the screw and washer supply mechanism main body 51 will be described in detail with reference mainly to FIG. 2, FIG. 9, and FIG.

  The screw and washer supply mechanism main body 51 is positioned at a lower position of the clamping machine main body guide mechanism 11 and at an upper portion of the tip block 31 and is supported in a direct arrangement, and further, the screw rope at the rear portion. The magazine 101 is configured to be detachable.

  The screw and washer supply mechanism main body 51 is supported by the tip block 31 in a vertical arrangement, and as shown in FIG. 2, a washer sequential supply mechanism 71 including a washer feed unit 72 having a rectangular cylindrical appearance, and the screw A screw sequential supply mechanism 111 including a feed unit 112 is included.

  As shown in FIGS. 9 and 10, the screw and washer supply mechanism main body 51 includes a pole support body 52 supported in a vertical arrangement by the tip block 31, and the vertical support by the tip block 31. It has a bit guide rod 53 that guides the bit 3 in a loosely fitted state.

  The pole support 52 has a vertical piece 52a bent and formed at a lower end portion by a vertical standing portion 38b of the bit guide body 34 and is fixedly supported together with a lower end portion 53a of the bit guide rod 53, and is integrated with the vertical piece 52a. The piece 52b extends in the horizontal direction, the wall surface forming plate portion 52c is erected vertically upward from the end portion of the horizontal piece 52b, and the pair of guide poles 14, 14 from both upper corners of the wall surface forming plate portion 52c. The pair of guide poles 14 and 14 are supported in a vertical arrangement in a state where a predetermined position of the pair of guide poles 14 and 14 penetrates by a pair of guide pole support pieces 52d and 52d protruding horizontally in the side. It is composed.

  The horizontal piece 52b is provided with a square hole 52f through which the screw feeding pressing rod 121 is inserted.

  In addition, the bit guide rod 53 is arranged in parallel with the bit 3 from the lower end portion 53a and vertically up in a state of penetrating the screw feed unit 112, and a vertical portion 53b A bit loosely fitting piece 53c provided with a through hole 53d that is bent from the upper end and penetrates the bit 3 without contacting it.

  The screw feed unit 112 is disposed on the front side of the wall surface forming plate portion 52c of the pole support 52, and the washer feed unit 72 constituting the washer sequential supply mechanism 71 is disposed on the rear side.

  The washer feed unit 72 includes a front wall surface plate 73 fixed to the wall surface forming plate portion 52c with screws, a right wall surface plate 74 fixed to the right bent piece 52e of the wall surface forming plate portion 52c with screws, and a right side surface plate. 74 is fixed to the rear side of the rear side wall plate 75, and the right side wall plate 74 and the rear side wall surface plate 75 are fixedly arranged at predetermined intervals. The substantially U-shaped partition plate 77 is provided.

  As shown in FIG. 10, the partition plate 77 includes a front mounting plate portion 77 a that is attached to the rear surface right side of the front wall plate 73 in a vertical arrangement by screws, and a right partition plate portion that is arranged in parallel with the right wall plate 74 at a predetermined interval. 77b and a rear side wall plate 75 and a rear partition plate portion 77c arranged in parallel at a predetermined interval are integrally formed.

  Further, the washer feed unit 72 is attached to the left side of the rear partition plate portion 77c using a pair of hinges 80 so as to be opened and closed, and an open area between the front wall plate 73 and the rear partition plate portion 77c. Is provided with a lid body 78 that substantially closes or opens.

  With such a configuration, a substantially rectangular parallelepiped space defined by the front wall plate 73, the right partition plate portion 77b, the rear partition plate portion 77c, and the lid 78 is configured to function as a storage region 79 for the washer W. is doing.

  A pair of parallel-arranged guide rods 81 are fixedly arranged in a vertical arrangement on the outer side of the lid 78 (opposite the accommodation area 79), and a movable box 82 including a knob 83 is attached by the pair of guide rods 81. Further, the washer holding piece 84 attached to the moving box body 82 is supported in such a manner as to be movable up and down, and the uppermost end surface of the washer W stacked in the receiving area 79 is placed by the washer holding piece 84. It is configured to hold down.

  Further, the main part of the washer sequential supply mechanism 71 is accommodated in a region between the right wall surface plate 74 and the right partition plate portion 77b.

  Next, a specific configuration example of the washer sequential supply mechanism 71 will be described with reference to FIGS.

  As shown in FIGS. 2, 11, 10, and 12, the washer sequential supply mechanism 71 has an upper end connected to the upper slide mounting portion 12 and a lower end on the right wall plate 74 and a right partition plate. 11 can be rotated in the direction of the arrow shown in FIG. 11 by a washer-feeding pressing rod 85 facing the region between the portions 77b and a shaft portion 86 mounted horizontally between the right side wall plate 74 and the right partition plate portion 77b. The washer feeder 70 is slidable on the base plate 33 on the washer feeder 70 that is supported by the washer feeder pressing rod 85 and disposed on the base plate 33. And a single operation lever 88 that is arranged outside the right wall plate 74 and interlocks with the rotation lever 87.

  As shown in FIG. 12, the washer feeder 70 includes a slide plate portion 70a having a substantially rectangular shape in plan view, and an arcuate recess portion 70b corresponding to the outer shape of the washer W provided on the front end side of the slide plate portion 70a. And a feed receiving piece 70c provided in a standing arrangement at the rear end corner of the slide plate 70a.

  As shown in FIGS. 11 and 12, the washer-feeding pressing rod 85 has a double plate 85a having two hanging plates 85a each having an upper end attached to the upper slide attaching part 12 with a gap 85c therebetween. A connecting ring 85b that connects the two hanging plates 85a is fixed to the lowermost part of the two hanging plates 85a using bolts and taps (not shown).

  The rotating lever 87 passes through a receiving piece portion 87a with which the connecting ring 85b abuts and an engaging pin 89 attached to the feeding receiving piece 70c of the washer feeding body 70 when the washer feeding pressing rod 85 is lowered. When the slide operating piece 87b provided with the engaging elongated hole 87c and the washer-feeding press rod 85 are raised, the protruding end side enters the gap 85c of the washer-feeding press rod 85 and is positioned at the lower end thereof. A return piece 87d that comes into contact with the connecting ring 85b and pivots the pivot lever 87 so as to return to the initial position with the shaft portion 86 as a support shaft projects radially in three directions as viewed from the shaft portion 86. It is formed like this.

  The single operation lever 88 and the rotation lever 87 are arranged so as to penetrate an arc-shaped elongated hole 74a provided in the right wall surface plate 74, as shown in FIGS. The washer feeder 70 can be mounted on the base plate 33 by connecting the two connecting rods 90, 91 corresponding to the arcuate elongated hole 74a and manually operating only the single operating lever 88 in the direction of the arrow. It can be made to slide with.

  Next, the screw rope magazine 101 will be described with reference to FIGS. 1, 17, 18, and 19. FIG.

  The screw rope magazine 101 has a circular box-shaped magazine main body 104 that accommodates a screw rope 102 in which a large number of screws S are connected at regular intervals by a belt-like member 103 so that the screw rope 102 can be fed out. A bracket provided at one end of the magazine main body 104 The screw and washer supply mechanism main body 51 is configured to be detachably mounted on the mounting receiving piece 76 provided on the rear side wall face plate 75 shown in FIG.

  As shown in FIGS. 18 and 19, the magazine body 104 has an outer lid 106 attached to a part of an opening thereof through a hinge 105 a so that the magazine body 104 can be opened and closed, and a part of the magazine body 104 in the circumferential direction. In addition, an outlet 107 for taking out the screw rope 102 is opened.

  Inside the magazine body 104, a wound screw rope 102 is accommodated, one end of the screw rope 102 is led out from the outlet 107, and the screw rope 102 is sequentially sent to the screw sequential supply mechanism 111. Yes.

In the embodiment of the present invention, the inner lid 108 is reversibly attached to the magazine body 104 so that, for example, two types of screws S having different lengths can be accommodated in the magazine body 104.
The inner lid 108 is attached in a snap-fixed manner so that a boss 109 protrudes from the inner center portion of the outer lid 106 and can be attached to the boss 109 from any direction in its axial direction. .

  Next, a specific configuration example of the screw sequential supply mechanism 111 will be described with reference to FIGS. 2, 11, 12, and 16.

  The screw sequential supply mechanism 111 has a screw feed unit 112 attached to the lower attachment portion 13 on the front surface of the screw and washer supply mechanism main body 51 above the tip block 31.

  The screw feed unit 112 is formed in a substantially rectangular parallelepiped box shape in which the front cover body 113 and the rear cover body 114 are tightly coupled.

  On the front surface side of the front cover body 113, a screw guide body 116 that rotates in the vertical direction and the front-rear direction with the shaft portion 115 as a support shaft by a shaft portion 115 that is horizontally fixed, and a shaft that is vertically fixed A screw rope having a screw pressing claw body 118 reciprocating in the horizontal direction with the shaft part 117 as a support shaft by a part 117, and a screw rope 120 having an insertion hole 120 through which the belt-like member 103 fixed to the lower position of the screw pressing claw body 118 is inserted. An insertion body 119 is arranged.

  The screw guide body 116 is urged toward the front cover body 113 by a coil spring (not shown) disposed on the shaft 115.

  The screw pressing claw body 118 is biased counterclockwise as viewed from above by a coil spring (not shown) disposed on the shaft portion 117.

  Furthermore, a U-shaped screw head passage groove 116a for guiding and passing the head of the screw S is provided on the inner surface of the screw guide body 116 on the front cover body 113 side. As shown in FIG. 16, a U-shaped screw head passage groove 113a corresponding to the screw head passage groove 116a is provided at a position corresponding to the screw head passage groove 116a.

  Then, as shown in FIG. 17, the belt-like member 103 and the screw S of the screw rope 102 are mounted between the front cover body 113 and the screw guide body 116, and between the screw head passage groove 113a and the screw head passage groove 116a. The screw heads of many screws S are configured to pass therethrough.

  Main components of the screw sequential supply mechanism 111 are arranged inside the front cover body 113 and the rear cover body 114.

  A specific configuration example of the screw sequential supply mechanism 111 will be described.

  As shown in FIGS. 11 and 12, the screw sequential supply mechanism 111 is connected to the upper slide mounting portion 12 at the upper end portion and has a screw feed pressing rod with the lower end portion facing the screw feed unit 112. 121.

  The screw feeding pressing rod 121 has a double structure having two hanging plates 122, 122 having upper ends attached to the upper slide attaching portion 12 with a gap 122a therebetween, and two pieces. A connecting ring 123 that connects them is fixed to the lowermost part of the hanging plates 122, 122 using bolts and taps (not shown).

  Further, as shown in FIGS. 11 and 12, the screw sequential supply mechanism 111 is vertically moved by a shaft portion 125a attached to the rear cover body 114 below the connecting ring 123 of the screw feeding pressing rod 121. A turning lever 124 supported so as to be turnable, a feed claw 126 for a screw S that is protruded so as to be turnable in the horizontal direction by a shaft portion 125b attached to a lower end portion of the turning lever 124 in a vertical arrangement; A lower end portion is rotatably supported by a shaft portion 127 attached to the rear cover body 114, and an upwardly projecting, for example, arcuate engagement protrusion piece 128a is exposed in the gap 122a on the upper side of the connecting ring 123. The return lever 128 and one end side of the return lever 128 are rotatably connected to the rotation lever 124 by a shaft portion 129, and the other end side is rotatably connected to the return lever 128 by a shaft portion 130. These pivoting lever 124, and includes a link lever 131 that links the return lever 128, a.

  The feed claw 126 rotates only in one direction, that is, when it moves to the feeding preparation position of the screw S (in the direction of arrow a shown in FIG. 11), and does not rotate when it moves to the feeding position of the screw S (FIG. 11 (in the direction of arrow b).

  The right end in FIG. 11 of the rotating lever 124 is pressed by the screw feed pressing rod 121 when the screw feeding press rod 121 interlocking with the tightening machine body 2 moves forward (downward movement). The pivot lever 124 itself pivots in the vertical right direction with the shaft portion 125 as a supporting shaft, and at the same time, functions as a pressure receiving side 124a that moves the feeding claw 126 in the direction of arrow a, that is, to the feeding preparation position. It has become.

  The engagement protrusion 128a of the return lever 128 rotates in conjunction with the link lever 131 when the screw feed pressing rod 121 moves forward (downward movement), and is in the gap 122a on the upper side of the connecting ring 123. It rotates in the state which contacts the said connection ring 123.

  On the other hand, when the screw feed pressing rod 121 moves backward (upward movement) to the initial position as opposed to the forward movement (downward movement), the engagement protrusion 128a is raised along with the rise of the screw feeding press rod 121. Is pivoted upward by the connecting ring 123 to return to the initial position, thereby functioning to return the pivot lever 124 interlocked with the link lever 131 to the initial position.

  Next, regarding the operation of the continuous screw tightening machine 1 with the washer stack supply mechanism according to the present embodiment, with reference to FIGS. 20 and 21, the tightening operation of the bit 3 and the washer W to the tightening target portion 100 is mainly performed. explain.

(Preparation for tightening)
In the continuous screw tightening machine 1 with the washer stacked supply mechanism according to the present embodiment, the tightening machine body 2 is set to the standby position, and in this state, the magazine body 104 is attached to the rear part of the washer feed unit 72, and the washer feed unit A plurality of washers W are stacked on the storage area 79 in a stacked manner on the 72 washer feeders 70.

  Then, for example, the single operation lever 88 is manually operated, the washer feeder 70 is slid on the base plate 33, and the lowermost one washer W is fed into the washer temporary housing portion 32.

  On the other hand, the screw rope 102 fed out from the magazine main body 104 passes between the front cover body 113 and the screw guide body 116 and sandwiches the first screw S between the feed claw 126 and the screw pressing claw body 118. The screws S are arranged vertically and concentrically between the bit 3 and the washer W.

  Further, the tip of the band-like member 103 is inserted into the insertion hole 120 of the screw rope insertion body 119.

  Further, the lower surface of the base plate 33 of the tip block 31 is arranged so that the washer W is positioned directly above the location 100 to be tightened.

  In this way, the tightening preparation of the continuous screw tightening machine 1 with the washer stack supply mechanism is completed.

(Screw and washer tightening operation)
Next, by operating the trigger switch 6 and rotating the motor of the tightening machine main body 2, the tightening machine main body 2 is guided by the tightening machine main body guide mechanism 11 and lowered to a tightenable position. 3 is engaged with the screw head of the screw S, the clutch is engaged, and the bit 3 is driven to rotate.

  Further, the tightening machine body 2 is advanced (lowered) so that the screw S passes through the hole Wa of the washer W, and further, the screw S together with the washer W is separated from the washer temporary housing portion 32 downward. Is tightened and fixed to the tightening target portion 100, and the tightening operation is completed.

  An example of the screw S and the washer W in the tightened state is shown in FIG.

  When the engaging protrusion 3a of the bit 3 is in a tightenable position where it engages with the screw head of the screw S and further descends, the rotating lever 124 is rotated by the screw feeding pressing rod 121, Accordingly, the feeding claw 126 also moves in the direction of the arrow a, and is positioned at the feeding preparation position for the subsequent screw S.

  When the feed claw 126 moves in the direction of the arrow a, the feed claw once comes into contact with the subsequent screw S, but the feed claw 126 is moved over the subsequent screw S by the rotation of the feed claw 126 itself, and is arranged at a position where the screw S can be fed. Is done.

  On the other hand, in the washer sequential supply mechanism 71, the washer-feeding pressing rod 85 is also lowered as the fastening machine body 2 is lowered, and the receiving piece portion 87 a of the rotating lever 87 is rotated.

  As the receiving piece 87a is rotated, the slide operation piece 87b is also rotated, and the washer feeder 70 is slid on the base plate 33 of the tip block 31 to the next preparation position for supplying one washer W. Return.

  The turning state of the turning lever 87 at this time is shown in FIG.

  When the bit S as described above is in a position where it can be tightened and further lowered, the screw feed pressing rod 121 is also lowered, and its lower end passes through the square hole 52f and faces the upper surface of the base plate 33.

(Raising operation of the tightening machine body 2 to the standby position)
After the fastening operation of one screw S and washer W is completed as described above, the fastening machine body 2 is guided by the fastening machine body guide mechanism 11 and returned to the standby position, and the next screw S and washer are returned. Shifts to W tightening posture.

  When the tightening machine body 2 is moved backward (raised) to return to the standby position, the washer-feeding pressure bar 85 is also raised, and at this time, the return piece 87d is moved to the washer-feeding pressure bar 85. The rotating lever 87 is rotated so as to return to the initial position using the shaft portion 86 as a support shaft.

  At this time, the slide operation piece 87b also rotates, the washer feeder 70 is slid on the base plate 33 of the tip block 31, and the second washer W is placed in the washer temporary housing portion 32 of the tip block 31. Send it in.

  Further, when the tightening machine body 2 is moved backward (upward movement) to return to the standby position, the screw feed pressing rod 121 is also raised, and accordingly, the turning lever 124 is also as described above. Rotates in the opposite direction, and the feed claw 126 moves in the direction of the arrow b to feed the second screw S to a position where the bit 3 can be tightened.

  As a result, the continuous screw tightening machine 1 with the washer stack supply mechanism is in a state similar to the above-described tightening preparation state, and is ready to execute the second screw and washer tightening operation.

  Thereafter, the operation as described above is repeated, and the target number of screws and the washer tightening operation can be executed sequentially and continuously.

  According to the continuous screw clamping machine 1 with the washer lamination supply mechanism of the present embodiment described above, the following characteristic effects are obtained.

  In conjunction with the screw tightening stroke of the tightening machine main body 2, screw feeding and washer supply are automatically performed. Therefore, the operator can fasten and fix the washer W and the screw S at the tightening target portion 100 at the same time only by moving the fastening machine body 2 forward and performing the screw fastening operation, and also moves the fastening machine body 2 backward. By returning to the standby position, the supply of the next washer W to the washer temporary storage portion 32 and the supply of the next screw S by the feed claw 126 are performed, whereby the screw and the washer tightening operation are sequentially and continuously performed. Efficient execution.

  Since the washer W is stacked and stored in the housing area 79 inside the screw and washer supply mechanism main body 51 and the screw sequential supply mechanism 111 and the washer sequential supply mechanism 71 are also stored, the screw and the washer supply mechanism main body 51 are obstructed to the outside. There are almost no overhanging members, and the overall structure is compact and lightweight, which can greatly contribute to the improvement of working speed.

  Further, since the screw S and the washer W for fastening can be visually recognized from the outside, for example, there is no inconvenient situation where only the screw S is fastened or only the washer W comes out. Work efficiency is improved.

  The washer W can be set in the receiving area 79 by simply lifting the washer restraining piece 84 and opening the lid 78, loading the washer W from the side, and closing the lid 78. In addition, even if the screw and the washer supply mechanism main body 51 are tilted, the washer W does not fall.

  Since the washer unit can be supplied to the washer temporary housing portion 32 that is the fastening preparation position simply by operating the single operation lever 88, it is very convenient when setting the washer unit after only the washer W is empty.

  Next, referring to FIGS. 22 to 31, a washer feeder 70 </ b> A according to a modification of the washer feeder 70 constituting the washer sequential supply mechanism 71 and a tip block 31 </ b> A according to a modification of the tip block 31. explain.

  In addition, in the washer feeder 70A and the tip block 31A according to the modification, the same elements as those of the washer feeder 70 and the tip block 31 described above are denoted by the same reference numerals, and detailed description thereof will be omitted.

  As shown in FIGS. 22 to 25, a washer feeder 70A according to a modification of the washer feeder 70 is a part of the outer shape of the washer W that is brought into contact with the outer periphery of the washer W on the tip side of the slide plate portion 70a. An arcuate abutting portion 70d corresponding to the shape of the portion (substantially semicircular shape) is provided, and the lower surface of the washer W is supported from the bottom of the arcuate abutting portion 70d further to the distal end side with a thinner thickness than the slide plate portion 70a. A seat surface portion 70e having a substantially semicircular shape is provided so as to extend from the slide plate portion 70a.

  That is, an arcuate contact portion 70d is formed at the boundary portion between the slide plate portion 70a and the seating surface portion 70e utilizing the difference in thickness between the two.

  Further, on the end face of the arcuate abutting portion 70d, a thin and narrow return claw 70f is provided so as to project from the slide plate portion 70a side, for example, at two positions separated from the end of the arcuate contact portion 70d. When the washer W is fed by 70A, the return claw 70f covers a part of the outer peripheral upper surface of the washer W without being restrained.

  Further, the seat surface portion 70e has a concave portion 70g having a substantially U shape formed so as to be arranged from the tip side to the substantially central portion, and the arcuate contact portion 70d is penetrated from the deepest portion of the concave portion 70g. A seat surface recessed portion 70i is provided, which is formed by a cut-in recess 70h having a rectangular shape formed so as to bite into the portion 70a.

  Next, a tip block 31A according to a modification of the tip block 31 of the embodiment described above will be described with reference to FIGS.

  The tip block 31A according to the modified example has substantially the same basic configuration as the tip block 31, but eliminates the latch portion 37 provided in the washer temporary housing portion 32 and temporarily stores the washer of the tip block 31A. The washer W is a part of the outer periphery of the portion 32 and is the deepest advancing / retreating area of the cut-in recess 70h of the seat surface portion 70e constituting the washer feeder 70A, and the washer W is temporarily accommodated by the washer W by the washer feeder 70A. The movable latch portion 41 is provided at a position where it does not come into contact with the cut-out recess 70h when loaded.

  As shown in FIGS. 27 to 29, the movable latch portion 41 is provided with a pivot pin 42 on the outer peripheral portion of the washer temporary housing portion 32 to rotate the latch piece 43 in the forward and backward movement direction of the washer feeder 70A. The latch piece 43 is tilted toward the standing position shown in FIG. 29 and the washer temporary housing portion 32 side shown in FIG. 27 under the action of the urging force of the coil spring 44 wound around the shaft support pin 42. It is configured to be movable over the specified position. Therefore, the movable latch portion 41 is configured to tilt only in the moving direction of the washer feeder 70A.

  That is, when the washer W is placed on the seat surface portion 70e of the washer feeder 70A and fed into the washer temporary housing portion 32, the latch piece 43 of the movable latch portion 41 is, as shown in FIGS. It is pushed by the lower surface of the washer W that is exposed downward from the recess 70g and tilts toward the washer temporary housing portion 32 while resisting the urging force of the coil spring 44, and simultaneously with the end of feeding into the washer temporary housing portion 32, FIG. 28, as shown in FIG. 29, the outer periphery of the washer W on the washer feeder 70A side of the washer W that has been erected by the urging force of the coil spring 44 and sent to the washer temporary housing portion 32 as shown in FIG. The movement of the washer feeder 70A is moved backward for feeding the next washer W. The washer W are not configured to retraction with the washer feed member 70A.

  Next, various actions and effects associated with the operation of supplying the washer W 70A according to the above-described modified example and the washer W to the washer temporary housing portion 32 by the tip block 31A will be described with reference to FIGS. To do.

  FIG. 30 shows the washer feed body 70A when the screw S and the washer W are driven by the tightening machine main body 2 in the continuous screw tightening machine 1 with the washer stacked supply mechanism including the washer sequential supply mechanism 71 according to the modification. The state when the washer is loaded into the temporary housing portion 32 of the tip block 31A when the washer is fed is shown.

  Further, FIG. 31 shows that the washer W is being fed into the tip block 31A by the washer feeder 70A in the washer sequential supply mechanism 71 according to the modified example (a), and the washer W starts to enter the washer temporary housing portion 32 by the washer feeder 70A. FIG. 4 schematically shows the state of time (b), when the washer W is loaded into the washer temporary storage portion 32 (c), when the washer feeder 70A is moved backward (d), and the state of the movable latch portion 41. is there.

  If the arcuate recess 70b in the washer feeder 70 of the above-described embodiment is worn, there is a situation in which the washer W is moved away from the arcuate recess 70b when the washer W is fed, and the washer W is moved by the idle feed. There is a possibility that only the screw S will be tightened in the absence, and that the washer W may be clogged due to a two-sheet feeding state of the washer W by feeding again after the idling of the washer W during feeding. .

  On the other hand, by adopting the washer feeder 70A and the tip block 31A according to the modification, the washer W is reliably supported by the seat surface portion 70e provided with the arcuate contact portion 70d of the washer feeder 70A, and the return The washers W can be surely loaded one by one into the washer temporary housing portion 32 of the tip block 31A so as to cover a part of the outer peripheral upper surface of the washer W without being restricted by the claw 70f.

  As a result, it is possible to eliminate the occurrence of an inconvenient situation such as tightening only the screw S by idle feeding of the washer W, or an occurrence of an inconvenient situation such as clogging of the washer W caused by feeding two washers W or the like. It becomes.

  Next, in the embodiment described above, the latch portion 37 is provided in the washer temporary housing portion 32 in the tip block 31. In this case, the washer W is sent to the washer temporary housing portion 32, and the washer W Will be loaded on the upper part of the latch part 37, so that if the washer W is detached from the latch part 37 due to vibration or impact of the tightening machine main body 2, there is no washer W and the washer S is fastened only. There was a possibility that an empty shot could occur.

  On the other hand, in the tip block 31A according to the modification, the latch portion 37 is eliminated, and the lower surface of the washer W is supported by the seat surface portion 70e of the washer feeder 70A, so that the vibration and impact of the tightening machine main body 2 can be achieved. Therefore, it is possible to eliminate the occurrence of an inconvenient situation where the washer W drops off and only the screw S is fastened in an empty state.

  Next, in the embodiment described above, when the washer W is sent to the washer temporary storage portion 32 by the washer feeder 70, the washer W is loaded on the upper portion of the latch portion 37, and the washer W is sent again in this state, the washer W Due to the clearance that only one W can enter, the extra one washer W has fallen off the latch part 37 to prevent the washer W from hitting two sheets, but if the latch part 37 is worn out Two washers W are loaded in the washer temporary storage portion 32, which may cause an inconvenient situation of two washer W strikes.

  On the other hand, in the tip block 31A according to the modified example, the movable latch portion 41 as described above is provided in the washer temporary housing portion 32, and the movement of the washer W already fed by the latch piece 43 to the washer feeder 70A side is restricted. Therefore, only one washer W is surely loaded in the washer temporary housing portion 32, and it is possible to eliminate the two washer W strikes.

  Further, even if the screw S is idled by the tightening machine body 2 due to some reason such as the end of the supply of the screw S in the washer temporary housing portion 32 and the situation where only one washer W remains, the movable latch portion 41. Since the movement of the washer W toward the washer feeder 70A is restricted by the latch piece 43, the remaining washer W can be dropped downward.

  The continuous screw tightening machine with a washer laminated supply mechanism according to the present invention can be widely applied to roofing work, interior work such as a wall surface and floor surface in a building, and exterior work such as an outer wall of a building.

DESCRIPTION OF SYMBOLS 1 Continuous screw clamping machine with a washer lamination supply mechanism 2 Clamping machine main body 3 Screw fastening bit 3a Engaging convex part 3b Groove 4 Power cable 5 Insertion plug 6 Trigger switch 7 Grip handle 11 Clamping machine main body guide mechanism 12 Upper part Slide mounting portion 13 Lower mounting portion 14 Guide pole 31 Tip block 31A Tip block 32 Washer temporary storage portion 33 Base plate 34 Bit guide body 35 Slide recess 36 Long hole 37 Latch portion 38a Recess portion 38b Vertical upright portion 41 Movable latch portion 42 Shaft Support pin 43 Latch piece 44 Coil spring 51 Screw and washer supply mechanism main body 52 Pole support 52a Vertical piece 52b Horizontal piece 52c Wall surface plate 52d Guide pole support piece 52e Right bent piece 52f Square hole 53 Bit guide rod 53a Lower end Portion 53b vertical portion 53c bit loosely fitting piece 53d through hole 70 washer feeder 70A washer feeder 70a slide plate portion 70b arc-shaped recessed portion 70c feed receiving piece 70d arc-shaped abutting portion 70e seat surface portion 70f return claw 70g recess 70h notch recess 70i Seat recessed portion 71 Washer sequential supply mechanism 72 Washer feed unit 73 Front wall plate 74 Right side plate 74a Arc-shaped slot 75 Rear side wall plate 76 Mounting plate 77 Partition plate 77a Front mounting plate portion 77b Right side partition plate portion 77c Rear Side partition plate portion 78 Lid 79 Housing area 80 Hinge 81 Guide rod 82 Moving box 83 Pick 84 Washer restraining piece 85 Washer feed pressing rod 85a Drooping plate 85b Connecting ring 85c Clearance 86 Shaft portion 87 Turning lever 87a Receiving piece portion 87b Slide operation piece 87c Joint slot 87d Return piece 88 Single operation lever 89 Engagement pin 90 Connection rod 91 Connection rod 100 Location to be tightened 101 Screw rope magazine 102 Screw rope 103 Strip member 104 Magazine body 105a Hinge 105b Bracket 106 Outer cover 107 Outlet 108 Middle cover 109 Boss 111 Screw sequential supply mechanism 112 Screw feed unit 113 Front cover body 113a Screw head passage groove 114 Rear cover body 115 Shaft section 116 Screw guide body 116a Screw head passage groove 117 Shaft section 118 Screw pressing claw body 119 Screw rope insertion body 120 Insertion Hole 121 Screw feeding pressing rod 122 Drooping plate 122a Gap 123 Connecting ring 124 Rotating lever 124a Press receiving side 125a Shaft portion 125b Shaft portion 126 Feeding claw 127 Shaft portion 128 Return lever 128a Engaging protrusion 129 Shaft portion 130 Shaft portion 1 1 link lever S bis-W washer Wa hole

Claims (4)

A tightening machine main body mounted with a driving machine and detachably and rotatably connected to a screw clamping bit that is rotationally driven by the driving machine;
A tightening machine main body guide mechanism for moving the tightening machine main body forward and backward over a standby position and an advanced position in which the bit is advanced so as to be disposed at a position where the screw can be tightened;
A movable latch portion that is provided below the tightening machine main body guide mechanism and accommodates a single washer having a hole through which the screw is inserted so that the washer can be pulled out downward and restricts movement of the loaded washer in the feeding direction. A washer temporary storage portion provided with a shaft support pin on the outer peripheral portion of the washer temporary storage portion to support the latch piece so as to be rotatable in the forward and backward movement direction of the washer feeder, and wound around the shaft support pin. A washer temporary housing portion comprising a movable latch portion configured to be movable over an upright position and a position inclined to the washer temporary housing portion side under the action of the biasing force of the coil spring mounted ; A base plate capable of placing the washer in a stacked arrangement, and a tip block disposed on a tightening target location;
A screw and a washer supply mechanism main body, which are disposed between the tightening machine main body guide mechanism and the tip block, and have a plurality of the washer-accommodating areas stacked on the rear side;
A washer-feeding press rod interlocked with the tightening machine main body, and a screw and a screw that is incorporated from the side to the lower part of the receiving area of the washer supply mechanism main body and rotated in conjunction with the washer-feeding press rod. The lower washer of the plurality of washers stacked on the base plate and accommodated in the washer supply mechanism main body as the moving lever and the washer-feeding pressing rod move backward, A washer feeder for automatically supplying to the washer temporary housing portion, the washer feeder having an arc-shaped contact portion corresponding to the outer shape of the washer and a seat surface portion on which the washer is placed. The washer on the base block of the tip block is slid by the feeder to automatically move the washer on the seat surface to the washer temporary housing part. A washer sequentially feeding and automatically returning the washer feeder linked to the pivot lever to the next ready position for supplying the washer in conjunction with the advancement of the washer-feeding press rod to the advance position. A supply mechanism;
A screw rope magazine that accommodates a plurality of screws connected at regular intervals by a belt-like member so as to be able to pay out and is detachably arranged on the rear side of the screw and the washer supply mechanism main body,
A screw-feeding pressing rod interlocked with the tightening machine main body, and a screw-feeding pawl incorporated in the screw and the washer supply mechanism main body and moving in conjunction with the screw-feeding pressing rod. Each of the screw ropes supplied from the screw rope magazine with the feed pawl as the screw feed pressing rod is moved in conjunction with the movement of the bit to the position where the bit can be tightened. One of the screws is automatically moved to the supply preparation position of the screw, followed by the backward movement of the screw feed pressing rod interlocked with the backward movement of the tightening machine body to the standby position. A screw sequential supply mechanism that automatically supplies the screws in order so as to be concentrically arranged with the holes of the washer by the feed claws;
Have
The screw is moved downward from the washer temporary storage portion together with the washer whose position is regulated by the movable latch portion by the rotational drive by the driving machine with respect to the bit advanced to the tightenable position, and the portion to be tightened A continuous screw tightening machine with a washer-stacked supply mechanism, characterized in that it is configured to be fastened and fixed to. 2. The continuous screw with a washer-stacking supply mechanism according to claim 1, wherein the washer feeder includes a thin and narrow return claw that covers a part of the outer peripheral upper surface of the washer on the seat surface without being restricted. Tightening machine.   The washer sequential supply mechanism is configured such that the lowermost washer among the plurality of washers in the stacked arrangement is moved by the washer feeder by a manual rotation operation separately from the advance and retreat of the tightening machine main body. The top block of the washer is slid on the base plate and supplied to the washer temporary housing portion, and the washer feeder is returned to the next one washer supply preparation position and linked to the rotating lever of the washer sequential supply mechanism. The continuous screw tightening machine with a washer lamination supply mechanism according to claim 1 or 2, further comprising a single operation lever.   The screw and the washer supply mechanism main body include a lid body that opens and closes the side surfaces of a plurality of the washer receiving areas that are stacked, and a pair of guide rods that are fixedly arranged in a vertical arrangement outside the lid body, A moving box body having a knob supported by the pair of guide rods so as to be movable up and down, and a washer holding piece for pressing down the uppermost portions of the plurality of washers arranged in a stack attached to the moving box body. The continuous screw fastening machine with a washer lamination supply mechanism according to any one of claims 1 to 3.

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