JP5846656B2 - Insert nut placement support device - Google Patents

Description

  The present invention provides an insert nut placement support device that has a small diameter front end and a large diameter intermediate portion and a rear end, and supports an operation of placing an insert nut to be press-fitted into a concave portion of a molded product in the concave portion of the molded product. About.

  There are two types of metal insert nuts that are inserted and arranged in resin molded products: one that is placed in the mold in advance before the molding process of the molded product and placed in the molded product at the time of molding, Some are press-fitted into the provided recesses. In the latter press-fitting step, the insert nut is press-fitted into the softened concave portion while softening at least a portion including the concave portion of the molded product by heating or ultrasonic irradiation. This press-fitting process is executed manually using a jig or automatically by an insert nut press-fitting device in order to implement this efficiently. An insert nut press-fitting device is disclosed in, for example, Patent Documents 1 to 3 and the like.

Prior to the press-fitting process of the insert nut, the insert nut is placed (positioned or temporarily placed) in the opening of the concave portion of the molded product. In this case, it is necessary to position the insert nut in a normal posture. This normal posture is the posture shown in FIG. In FIG. 1, the recess w formed in the molded product W has a tapered shape in which the diameter d _{wt of the} opening _wt is slightly larger than the diameter d _{wb of the} bottom surface wb. On the other hand, insert nut N, the diameter _{d Nr} of the rear end Nr is slightly larger than the diameter _{d wt} of the aperture wt recess w. Further, the tip end diameter d _Nf is slightly smaller than the rear end diameter d _Nr and has a tapered shape slightly larger than the diameter d _{wb of the} recess wb. The insert nut N is thus pressed into the concave portion w of the molded product W after being placed in a normal posture with the tip Nf facing the bottom surface wb of the concave portion w.

  The insertion of the insert nut is generally made artificially using tweezers or the like. Alternatively, in order to achieve high work efficiency, the insert nut press-fitting device may have a function of placing the insert nut and may be automatically executed. Specifically, an insert nut press-fitting device having a function of placing an insert nut is specifically a manipulator for releasably grasping a supplied insert nut and a relative position between the insert nut and a recessed portion of a molded product. Alternatively, an XYZ moving mechanism for moving the molded product in the XYZ direction and an XYZ moving mechanism so that the insert nut is positioned at the opening of the recessed portion of the molded product based on a preset program indicating the position of the recessed portion of the molded product or an optical sensor detection signal. And a control unit for sending a control signal.

JP-A-9-94722 JP-A-3-55131 JP 59-129114 A

  Although the insert nut press-fitting device described above can place the insert nut more efficiently than human work, it has a large scale due to the XYZ movement mechanism, and detects the recessed portion position of the molded product. It is necessary to update the preset program indicating the recess position for each type of molded product. For this reason, when press-fitting insert nuts in a relatively small lot, the scale and man-hour of the apparatus are excessive.

  Therefore, an object of the present invention is to provide an insert nut placement support device that can efficiently place an insert nut on a molded product, and that has a simple structure, is small and inexpensive, and has a small installation area. Is to provide.

According to the present invention, an insert nut to be press-fitted into a concave portion having a small diameter front end, a large diameter intermediate portion and a rear end, and having a tapered shape with a diameter of an opening larger than the diameter of the bottom surface of the molded product. An insert nut placement support device that is supported by a user and that supports the work of placing in a regular posture with the front end facing the bottom surface of the recess, which is slightly less than the middle portion and the rear end of the insert nut It has a cylindrical shape with a large inner diameter, an insert storage sleeve that accumulates insert nuts in a normal posture in a row, and a pin shape that is smaller in diameter than the screw hole of the insert nut. It penetrates the screw hole of the accumulated insert nut with a gap and extends from the insert accumulating sleeve to the tip that protrudes, and the tip becomes a recess in the molded product When inserted, the insert nut released from the insert accumulation sleeve is guided to the recessed portion of the molded product, and the insert nut provided at the tip of the insert accumulation sleeve is triggered by the insert nut accumulated in the insert accumulation sleeve. An insert discharge head that discharges one by one in accordance with an operation, and the insert discharge head is provided at the tip of the insert accumulation sleeve and has a through-hole portion that communicates with a cylindrical hole of the insert accumulation sleeve A block and a first side portion of the head block are arranged to move from the initial position to the trigger position and return to the initial position by being pushed in the cylinder radial direction of the insert accumulation sleeve as a trigger operation. The activated trigger block and the head block A back block provided on a second side opposite to the first side and coupled to the trigger block via a guide pin, wherein the back block has the trigger block at the initial position. When the trigger block is at the trigger position, the leading insert nut is released from the through-hole portion of the head block while holding the leading insert nut so that it is not released from the through-hole portion of the head block. The trigger block is provided with a stopper that releases the holding of the insert nut, and the trigger block allows the next insert nut to move to the head when in the initial position, while the trigger block includes other than the initial position including the trigger position. A hold pin is provided to hold the next insert nut so that it does not move to the top. The stopper moves with the back block, and when the trigger block moves, the back block also moves, and when the trigger block moves from the initial position to the trigger position, After the hold pin holds the first insert nut, the stopper releases the hold to the first insert nut, the first insert nut is released from the through hole of the head block, and the trigger block is the trigger. When returning from the initial position to the initial position, after the stopper has moved to a position to hold the leading insert nut, the hold pin releases the leading insert nut and the leading insert nut drops. And the stopper as the first insert nut The hold pin is spring-loaded, and in the initial position, the stopper is over the top insert nut compared to the distance from the front end of the hold pin to the top next insert nut. The length of the wrap is long, the hold pin presses and holds the leading next insert nut, the insert guide pin has the tip extending beyond the insert discharge head, and the hold pin Through the center of the insert nut until the accumulated insert nut is placed in the recessed portion of the molded product, including when holding the leading insert nut by the stopper and when holding the leading insert nut by the stopper The stopper moves at a position where it does not contact the insert guide pin, and the stopper The tip is provided so as to be in a position beyond the center of the leading insert nut at the initial position, and the guide pin is in a direction perpendicular to the direction in which the trigger block moves on a plane in which the trigger block moves. The two hold pins are disposed between the trigger block and the head block so that the trigger block returns to the initial position along the two guide pins. , insert nut mounting support device, characterized in that spring biasing the trigger block is provided is obtained in the direction opposite from the initial position and moved Dokata direction of the trigger position.

  The insert guide pin extends when the tip extends beyond the insert discharge head, and when the leading insert nut is held by the hold pin, and when the leading insert nut is held by the stopper. The accumulated insert nut passes through the center of the insert nut until it is placed in the recess of the molded product, the stopper moves at a position not in contact with the insert guide pin, and the tip is at the initial position. In this case, the first insert nut may be provided at a position beyond the center.

  The sleeve may further include a removable sleeve cap that closes the rear end of the insert accumulating sleeve, and the insert guide pin may have a proximal end attached to the sleeve cap.

  According to the present invention, there is also provided a stand for supporting the support device body having the insert accumulation sleeve and the insert discharge head in a state where a rear end of the insert accumulation sleeve faces upward, and the support supported by the stand. And an insert supply part for supplying the insert nut to the apparatus body in a regular posture, the insert supply part having a funnel shape having an upper wide opening and a lower narrow opening, and a plurality of insert nuts. A storage hopper for storing, and an upper end portion including a recessed portion having a shape that can be stored except for the rear end of the insert nut in a normal posture, and the upper end portion includes the lower narrow opening and the upper wide opening of the storage hopper. An elevating column provided to move up and down between the upper part of the opening and the elevating column provided above the upper wide opening of the storage hopper An insert nut detector that detects the presence or absence of an insert nut in the recess and whether or not a proper posture is present; and an elevating column provided so as to reciprocate horizontally above the upper wide opening of the storage hopper. And a wiper having a shape corresponding to the shape of the rear end of the insert nut in a normal posture housed in the recess, and inserted in the recess of the lifting column based on the detection result of the insert nut detector. When the nut is in a non-regular posture, the insert nut is wiped with the wiper to a normal posture or dropped into the storage hopper through the upper wide opening, while the insert is inserted into the recess of the lifting column. When there is no nut, an insert nut placement support device is obtained in which the lifting column descends and rises again.

  Further, according to the present invention, the insert insertion for receiving the insert nut in a normal posture from the insert supply section and inserting the received insert nut into the insert storage sleeve in the normal posture from the rear end of the insert storage sleeve. An insert nut placement support device further having a portion is obtained.

  In addition to being able to efficiently place the insert nut on the molded product, the insert nut placement assisting device according to the present invention has a simple structure, is small and inexpensive, and requires a small installation area.

It is a figure for demonstrating the insert nut which should be press-fitted in the recessed part of a molded article. It is a figure which shows the assistance apparatus main body in the insert nut mounting assistance apparatus by embodiment of this invention, (a) is sectional drawing, (b) is a top view of a front end surface. It is a figure which expands and shows the principal part of the assistance apparatus main body shown by FIG. 2, (a) is sectional drawing, (b) is a top view of a front end surface. It is a figure which shows the insert supply part in an insert nut mounting assistance apparatus, (a) is a top view, (b) is the side view partially represented with the cross section. It is the side view partially represented by the cross section which shows the storage hopper in the insert supply part shown by FIG. It is a figure which shows the principal part of the raising / lowering pillar in the insert supply part shown by FIG. 4, (a) is a top view, (b) is sectional drawing of an upper end part, (c) is a side view, (d) is an upper end It is an expanded sectional view of a part. (A)-(c) is a figure for demonstrating the insert nut detection method by the insert nut detector in the insert supply part shown by FIG. It is a side view which shows the principal part of the wiper in the insert supply part shown by FIG. It is a figure which shows the suction nozzle which is the principal part of the insert insertion part in an insert nut mounting assistance apparatus, (a) is a top view, (b) is a side view, (c) is a bottom view, (d) is a lower end. Sectional drawing partially enlarged and illustrated, (e) is an enlarged bottom view.

  Hereinafter, an embodiment of an insert nut placement support apparatus according to the present invention will be described with reference to the drawings.

  Referring to FIGS. 2 (a) and 2 (b) and FIGS. 3 (a) and 3 (b), the present insert nut placement assisting device has a small-diameter tip and a large-diameter intermediate portion as shown in FIG. And an apparatus for supporting the operation of placing the insert nut to be press-fitted into the concave portion of the molded product in a regular posture with the tip Nf facing the bottom surface wb of the concave portion w of the molded product W, It has the support apparatus main body 200 which exhibits the shape of a pen hold | gripped by the user so that a pen may be held, and the stand, insert supply part, and insert insertion part which are mentioned later.

  The support device main body 200 includes an insert accumulation sleeve 210, an insert guide pin 220, an insert discharge head 230, and a sleeve cap 212.

  The insert guide pin 220 passes through a screw hole formed at the center of the insert nut N accumulated in the insert accumulation sleeve 210 and extends to a tip 220 f protruding from the insert accumulation sleeve 210. And the insert nut N discharged | emitted from the insert accumulation | storage sleeve 210 is guided to the recessed part w of the molded article W by the front-end | tip being applied to the recessed part w (FIG. 1) of the molded article W. FIG.

  The insert discharge head 230 is provided at the tip 210f of the insert storage sleeve 210, and discharges the insert nuts N stored in the insert storage sleeve 210 one by one in response to a trigger operation.

  The sleeve cap 212 removably closes the rear end 210r of the insert accumulating sleeve 210. The base end 220r of the insert guide pin 220 is attached to the sleeve cap 212.

  The insert discharge head 230 has a head block 231, a trigger block 232, and a back block 233.

  The head block 231 has a through-hole portion 231 a that is provided at the tip 210 f of the insert accumulation sleeve 210 and communicates with the cylindrical hole of the insert accumulation sleeve 210.

  The trigger block 232 is provided on the first side of the head block 231 (the left side in FIGS. 2 and 3). The trigger block 232 is moved from the initial position to the trigger position by being pushed in the cylinder radial direction of the insert accumulating sleeve 210 as a trigger operation by the user, and is moved by the pair of compression springs 235 so as to return to the initial position. 3 is biased to the left.

  The back block 233 is provided on the second side (the right side in FIGS. 2 and 3) that faces the first side of the head block 231. The back block 233 is connected to the trigger block 232 via a pair of guide pins 234.

The back block 233 includes a pin-shaped stopper 236.
The stopper 236 holds the leading insert nut N by overlapping the tip end surface thereof so that the leading insert nut N is not released from the through hole 231a of the head block 231 when the trigger block 232 is in the initial position. On the other hand, when the trigger block 232 is at the trigger position, the leading insert nut N is released from the through-hole portion 231a of the head block 231 so that the overlap of the leading insert nut N with the tip surface is eliminated. It is something to solve.

On the other hand, the trigger block 232 includes a pin-shaped hold pin 237 with a spring.
When the trigger block 232 is in the initial position, the spring-loaded hold pin 237 allows the top next (second from the top) insert nut N to move to the top, while the trigger block 232 includes a trigger position other than the initial position. In order to prevent the leading insert nut N from moving to the leading part, engage the leading insert nut N with the elastic part at the boundary between the small diameter tip and the large diameter intermediate part of the peripheral side surface. A holding pin 237 with a spring is provided.

  As described above, the combination of the trigger block 232 and the back block 233 cooperates to release the insert nuts N one by one in accordance with the trigger operation by the user.

  4 and 8 together with FIGS. 2 and 3, the insert nut placement assisting device further includes a stand (not shown) and an insert supply unit 120 (FIGS. 4 to 8).

  The stand has the support device body 200 in a state where the sleeve cap 212 to which the insert guide pin 220 is fixed is removed and the rear end 210r of the insert accumulating sleeve 210 is opened, and the rear end 210r of the insert accumulating sleeve 210 faces upward. It is a temporary support in the state.

  The insert supply unit 120 supplies the insert nut in a normal posture to the support device main body 200 supported by the stand.

  Referring to FIGS. 4A and 4B, the insert supply unit 120 includes a storage hopper 10, a lifting column 20, an insert nut detector 30, and a wiper 40.

  As shown in FIG. 5, the storage hopper 10 has a funnel shape including an upper wide opening 10 t and a lower narrow opening 10 b, and stores a plurality of insert nuts N (not shown).

  Although the main part of the elevating column 20 is shown in FIGS. 6A to 6D, the recess 21 has a shape that can be accommodated except for the rear end Nr (FIG. 1) of the insert nut N in a normal posture. The upper end includes a fluid pressure type or electric cylinder 23 between the lower narrow opening 10b and the upper wide opening 10t of the storage hopper 10 (FIGS. 4A and 4B). ) To move up and down. The upper end portion of the elevating column 20 has a tapered shape in which the outer peripheral surface of the concave portion 21 becomes narrower toward the tip.

The shape corresponding to the shape of the insert nut N in the normal posture of the concave portion 21 to the shape of the intermediate portion is as follows in detail. That is, the recess 21, as is apparent from FIG. 6 (d), the and the lower region of the diameter _{d 21l,} a two-stage shape with tapered upper region which changes a maximum diameter _{d 21u} from a minimum diameter _{d 21l} Presents. The diameter d _21l of the lower region is slightly larger than the diameter d _Nf of the front end Nf of the insert nut N shown in FIG. 1, while being smaller than the diameter d _{Nr of the} rear end Nr. The maximum diameter d _21u of the upper region is slightly larger than the diameter d _Nr of the rear end Nr of the insert nut N.

  Due to the shape of the concave portion 21, when the lifting column 20 rises from the lower narrow opening 10 b of the storage hopper 10 toward the upper side of the upper wide opening 10 t, only one insert nut N in a normal posture is rearward. It is accommodated in the recess 21 leaving the end Nr. Further, even if a plurality of insert nuts N in a normal posture are scooped up by the lifting column 20, only one is stored in the recess 21 leaving the rear end Nr. On the other hand, there is a possibility that a part of the insert nut N that is not in a normal posture enters the upper region of the recess 21. However, at this time, more parts than the insert nuts N correctly stored in the recesses 21 protrude upward from the upper end surface of the lifting column 20. As will be described later, this state can be detected by the insert nut detector 30 as a state that is not a normal posture. Further, there may be a case where no insert nut N can be stored in the recess 21 of the lifting column 20. However, in this case, the inside of the recess 21 is empty, and there is nothing that protrudes upward from the upper end surface of the lifting column 20. As will be described later, this state can be detected by the insert nut detector 30 as a state in which there is no insert nut N.

  The insert nut detector 30 is provided above the upper wide opening 10t of the storage hopper 10, and detects the presence or absence of the insert nut N in the recess 21 of the lifting column 20 and the presence or absence of a normal posture when there is. The lower sensor 31 disposed at a height just above the upper end surface of the lifting column 20 rising above the upper wide opening 10t of the storage hopper 10 and the height above the lower sensor 31. The upper sensor 32 is arranged. The lower sensor 31 is a pair of a light source 31a that emits detection light horizontally toward the axis of the lifting column 20 and a light receiving element 31b that faces the light source 31a in the horizontal direction via the axis of the lifting column 20. It is configured. The upper sensor 32 is also configured by a pair of a light source 32 a that emits detection light horizontally toward the axis of the lifting column 20 and a light receiving element 32 b that faces the light source 32 a in the horizontal direction via the axis of the lifting column 20. Has been.

  The method of detecting the presence or absence of the insert nut N in the concave portion 21 of the lifting column 20 by the insert nut detector 30 and the presence or absence of the normal posture when it is present are as follows. As shown in FIG. 7A, when there is no insert nut N in the recess 21 of the lifting column 20, there is no light shielding object above the upper end surface of the lifting column 20, and the detection light is transmitted. The light receiving element 31b of the lower sensor 31 receives the detection light from the light source 31a. The light receiving element 32b of the upper sensor 32 also receives the detection light from the light source 32a. Therefore, when the transmission / shielding result of the detection light of both sensors is the conditions shown in FIG. 7A, it is determined that there is no insert nut N in the recess 21 of the lifting column 20.

  As shown in FIG. 7 (b), when the insert nut N is stored in a normal posture in the recess 21 of the lifting column 20, the rear end Nr of the insert nut N is cut from the upper end surface of the lifting column 20. Therefore, the light receiving element 31b of the lower sensor 31 is provided with a light source 31a because only the lower sensor 31 has a light shield (the rear end Nr of the insert nut N) and the detection light is shielded. The detection light from is not received. On the other hand, the light receiving element 32b of the upper sensor 32 receives the detection light from the light source 32a. Therefore, when the transmission / shielding result of the detection light of both sensors is the condition shown in FIG. 7B, it is determined that the insert nut N is housed in the normal posture in the recess 21 of the lifting column 20. .

  As shown in FIG. 7 (c), when only a part of the insert nut N enters the recess 21 of the lifting column 20 in a state where it is not in a normal posture, many parts of the insert nut N are above the lifting column 20. Since it protrudes high from the end face, there is a light shielding object (the rear end Nr of the insert nut N) for both the lower sensor 31 and the upper sensor 32, and the detection light is shielded. The light receiving element 31b of 31 does not receive the detection light from the light source 31a. Further, the light receiving element 32b of the upper sensor 32 does not receive the detection light from the light source 32a. Therefore, when the transmission / shielding result of the detection light of both sensors is the condition shown in FIG. 7C, it is determined that the insert nut N is placed in the recess 21 of the lifting column 20 in a state where it is not in a normal posture. The

  These determinations are made by a control unit (not shown) including a storage unit (not shown) that stores the condition table shown in FIG. 7A and a dedicated microcomputer chip (not shown) or a general-purpose personal computer. Executed.

  The insert nut detector 30 in this embodiment is a transmitted light detection system that detects whether or not the detection light is shielded by the insert nut N as a light shield, but the insert nut detector of the present invention is In a reflected light detection method for detecting whether or not the detection light is reflected by the insert nut N as a light reflecting object, an imaging method for determining the presence or absence of the insert nut N using a camera and an image processing circuit, etc. There may be.

  The wiper 40 reciprocates in the horizontal direction (in the left and right directions in FIGS. 4A and 4B) by driving the hydraulic or electric cylinder 42 above the upper wide opening 10 t of the storage hopper 10. Is provided. As shown in FIG. 8, the wiper 40 also has a shape corresponding to the shape of the rear end Nr of the insert nut N in the normal posture in the recess 21 of the lifting column 20, and a shape that avoids the rear end Nr of the insert nut N. Presents.

  The insert nut placement assisting device receives the insert nut from the insert supply unit 120 and inserts the received insert nut into the insert accumulating sleeve 210 from the rear end 210r of the insert accumulating sleeve 210 of the assisting device main body 200 in a normal posture. And an insert insertion portion.

  The insert insertion portion is connected to the suction nozzle 151 shown in FIGS. 9A to 9E and the rear end (upper end) of the suction nozzle 151, and includes a first unillustrated intake pump including an electrically controllable intake pump. And at least a pneumatic circuit. And an insert nut is supplemented to the front-end | tip (lower end) of the suction nozzle 151 by air suction.

  In this configuration, the user holds the suction nozzle 151, receives the insert nut from the insert supply unit 120 while turning on / off the first pneumatic circuit, and supports the received insert nut on the stand. The insert accumulating sleeve 210 is inserted into the insert accumulating sleeve 210 from the rear end 210r of the support device main body 200 in a normal posture.

  Alternatively, the suction nozzle 151 and the first pneumatic circuit include a nozzle drive cylinder (not shown) that drives the suction nozzle 151 vertically and horizontally, and an intake pump that is connected to the nozzle drive cylinder and can be electrically controlled. When the second pneumatic circuit is added, the insert insertion unit automatically receives the insert nut from the insert supply unit 120, and the received insert nut is supported on the support device main body 200 supported by the stand. The insert storage sleeve 210 is inserted into the insert storage sleeve 210 from the rear end 210r in a normal posture.

Referring to FIGS. 9A to 9E, the suction nozzle 151 includes a rear end portion 151r having a large diameter and a front end portion 151f having a small diameter. The end surface (lower end surface) of the tip portion 151f has a shape corresponding to the rear end (upper end) of the insert nut N (FIG. 1) to be captured, as shown in FIGS. 9 (d) and 9 (e). . That is, the lower end surface of the distal end portion 151f, slightly larger in diameter than the diameter d _Nr of the rear end of the insert nut, a depth of 1mm approximately recesses 151d are formed. In addition, four suction holes 151a are formed concentrically in the recess 151d corresponding to the rear end surface of the insert nut having a substantially cylindrical shape. The four suction holes 151a communicate with each other within the suction nozzle 151, and are formed as one hole at the rear end 151r so as to be connected to a pneumatic circuit (not shown).

  Next, with reference to FIGS. 2-9, operation | movement of this insert nut mounting assistance apparatus is demonstrated. The general operation steps are as follows.

  The insert nut is supplied in a normal posture by the insert supply unit 120.

  Next, the supplied insert nut is inserted into the insert storage sleeve 210 in a normal posture from the rear end 210r of the insert storage sleeve 210 of the support device main body 200 supported by the stand by the insert insertion portion having the suction nozzle 151. .

  Next, the user covers the sleeve cap 212 on which the insert guide pin 220 is fixed to the rear end 210r of the insert accumulation sleeve 210.

  Next, the user applies the tip 220 f of the insert guide pin 220 to the concave portion of the molded product W and holds down the trigger block 232 while holding the support device main body 200 with a pen. By this trigger operation, one insert nut is released from the insert accumulation sleeve 210 and is placed in the concave portion of the molded product W in a normal posture.

  Thereafter, after the insert nuts are placed in the recesses of all the molded products W into which the insert nuts are to be press-fitted, the press-fitting step is executed by means for press-fitting the insert nuts.

  The detailed operation of the insert supply unit 120 is as follows.

  Referring to FIGS. 4 to 8, the control unit (not shown) determines the necessity of supplying the insert nut, and raises the lifting column 20 when necessary.

  When the lifting / lowering column 20 rises to above the upper wide opening 10t of the storage hopper 10, the insert nut detector 30 detects whether or not there is an insert nut N in the recess 21 of the lifting / lowering column 20; Is detected.

  Based on the detection result of the insert nut detector 30, the control unit operates the wiper 40 when the insert nut N is in a non-regular posture in the recess 21 of the lifting column 20. In particular, when the tip Nf of the insert nut N is hooked downward, the insert nut N is changed to a normal posture by wiping the wiper 40. Alternatively, when the tip Nf is placed upward, the insert nut N is pushed down by the wiping of the wiper 40, and falls back into the storage hopper 10 through the upper wide opening 10t. On the other hand, if there is no insert nut N in the recess of the lifting column 20, the lifting column 20 is lowered and then raised again, and the same operation is repeated (retry).

  Further, based on the detection result of the insert nut detector 30, the control unit waits without moving the wiper 40 and the lifting column 20 when the insert nut N is in a normal posture in the recess 21 of the lifting column 20. Therefore, an insert nut having a normal posture is supplied to the upper end of the lifting column of the insert supply unit 120.

  The insert nut N in the normal posture is received (taken out) from the recess 21 of the lifting column 20 by the insert insertion portion, and is inserted into the insert accumulation sleeve 210 of the support device main body 200.

  The present invention is not limited to the embodiments described above, and it goes without saying that various modifications are possible within the technical scope described in the claims. For example, according to the present invention, the object to be placed is not limited to the insert nut, and a work for placing a large number of objects having the same shape with normal / unnormal orientation on the placement target in a normal posture. It is applicable to all devices that support

DESCRIPTION OF SYMBOLS 10 Storage hopper 10t Upper wide opening part 10b Lower narrow opening part 20 Elevating pillar 21 Recessed part 23 Cylinder 30 Insert nut detector 31 Lower sensor 31a Light source 31b Light receiving element 32 Upper sensor 32a Light source 32b Light receiving element 40 Wiper 42 Cylinder 120 Insert supply Part 151 Suction nozzle 200 Support device main body 210 Insert accumulation sleeve 210f Tip 210r Rear end 212 Sleeve cap 220 Insert guide pin 220f Tip 220r Base 230 Insert discharge head 231 Head block 231a Through hole 232 Trigger block 233 Back block 234 Guide pin 235 Compression spring 236 Stopper 237 Holding pin with spring N Insert nut Nf Tip Nr Trailing end W Molded product w Concave

Claims (4)

An insert nut to be press-fitted into a recess having a tapered shape having a small-diameter front end and a large-diameter intermediate portion and a rear end and having an opening diameter larger than that of the bottom surface of the molded product. An insert nut placement support device that is supported and used by a user to support the work of placing in a regular posture with the tip facing,
An insert accumulation sleeve that presents a cylindrical shape having an inner diameter slightly larger than the middle portion and the rear end of the insert nut, and accumulates the insert nuts in a normal posture in a state where they are aligned in a row;
It has a pin shape smaller in diameter than the screw hole of the insert nut, penetrates the screw hole of the insert nut accumulated in the insert accumulation sleeve with a gap and extends to the tip protruding from the insert accumulation sleeve, and the tip is molded An insert guide pin that guides the insert nut discharged from the insert accumulation sleeve to the recess of the molded product by being applied to the recess of the product,
An insert discharge head provided at the tip of the insert storage sleeve and discharging the insert nuts stored in the insert storage sleeve one by one in response to a trigger operation;
The insert discharge head is
A head block provided at the tip of the insert accumulation sleeve and having a through-hole portion communicating with a cylindrical hole of the insert accumulation sleeve;
Provided on the first side of the head block, and is pushed from the initial position to the trigger position by being pushed in the cylinder radial direction of the insert accumulating sleeve as a trigger operation, and urged to return to the initial position. Trigger block,
A back block connected to the trigger block via a guide pin, provided on a second side opposite to the first side of the head block;
The back block holds a leading insert nut so that it is not released from the through-hole portion of the head block when the trigger block is at the initial position, while the head block is when the trigger block is at the trigger position. Comprising a stopper to release the holding to the leading insert nut so as to be discharged from the through hole portion of
The trigger block allows the top and bottom insert nuts to move to the top when in the initial position, while the top and bottom insert nuts do not move to the top when other than the initial position including the trigger position. Has a hold pin to hold,
The hold pin moves with the trigger block, the stopper moves with the back block, and when the trigger block moves, the back block also moves,
When the trigger block moves from the initial position to the trigger position, after the hold pin holds the leading insert nut, the stopper releases the holding to the leading insert nut, and the leading insert nut Discharged from the through hole of the head block,
When the trigger block returns from the trigger position to the initial position, after the stopper moves to a position to hold the leading insert nut, the hold pin releases the leading insert nut and holds the leading insert nut. The next insert nut falls and is held by the stopper as the leading insert nut,
The hold pin has a spring,
In the initial position, the overlap length of the stopper to the leading insert nut is longer than the distance from the leading end of the holding pin to the leading insert nut, and the holding pin Press and hold the next insert nut,
The insert guide pin extends when the tip extends beyond the insert discharge head, and when the leading insert nut is held by the hold pin, and when the leading insert nut is held by the stopper. Including, until the accumulated insert nut is placed in the recess of the molded product,
The stopper is provided so that the stopper moves at a position not in contact with the insert guide pin, and the tip is positioned beyond the center of the leading insert nut at the initial position,
Two guide pins are arranged in a direction perpendicular to the direction in which the trigger block moves on the plane in which the trigger block moves, with the hold pin in between,
Wherein between the trigger block and the head block, along the two guide pins, so that the trigger block is returned to the initial position, the reverse of the transfer Dokata direction from the initial position to the trigger position An insert nut placement support device, wherein a spring for biasing the trigger block in a direction is provided.   The insert nut placement support device according to claim 1, further comprising a removable sleeve cap that closes a rear end of the insert accumulation sleeve, and a base end of the insert guide pin is attached to the sleeve cap. . A stand that supports the support device body having the insert accumulation sleeve and the insert discharge head in a state in which a rear end of the insert accumulation sleeve faces upward;
An insert supply unit that supplies an insert nut in a normal posture to the support device main body supported by the stand;
The insert supply unit is
A storage hopper that exhibits a funnel shape with an upper wide opening and a lower narrow opening, and stores a plurality of insert nuts;
An upper end portion including a recessed portion having a shape that can be accommodated except for the rear end of the insert nut in a normal posture, and the upper end portion is formed between the lower narrow opening portion of the storage hopper and the upper wide opening portion. A lifting column provided to move up and down between,
An insert nut detector that is provided above the upper wide opening of the storage hopper, and detects the presence or absence of an insert nut in the recess of the elevating column, and if there is a proper posture;
A wiper that is provided so as to reciprocate horizontally above the upper wide opening of the storage hopper, and that has a shape corresponding to the shape of the rear end of the insert nut in a normal posture housed in the recess of the elevating column And
Based on the detection result of the insert nut detector, if the insert nut is in a non-regular posture in the recess of the lifting column, the insert nut is wiped with the wiper to a normal posture or the upper wide opening The insert nut placement assisting device according to claim 1 or 2, wherein when the insert hopper is dropped into the storage hopper via the step, and the insert nut is not in the concave portion of the lift column, the lift column is lowered and raised again.   The insert insertion part which receives an insert nut of a normal posture from the insert supply part, and inserts the received insert nut into the insert storage sleeve in a normal posture from the rear end of the insert storage sleeve. The insert nut placement support device according to claim 1.

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