KR20090113949A - A array insertion appartus for insert nut on wire - Google Patents

Abstract

PURPOSE: An insert nut wire aligning and inserting apparatus is provided to check the number of an insert nut inserted into an ejection pin in real time. CONSTITUTION: An insert nut wire aligning and inserting apparatus comprises a mounting saddle(102), a mounting frame(104), a feeder(110), an ejection pin(120), an insert nut stopper assembly(130), a phase, an upper and lower holder assemblies(140,150), an insert nut drop detection sensor(161), and a control box. The feeder aligns automatically an insert nut(N1) and discharges it in turn. The wire(122) onto which the insert nut is threaded is combined with the lower end of the ejection pin. The insert nut stopper assembly consists of a stopper operating cylinder, a stopper housing, an elastic member, and a stopper. The stopper selectively emerges and withdraws from the tip of the stopper housing and controls the pass of the falling insert nut. The upper and lower holder assembly grips and releases the ejection pin alternately. The control box controls the insert nut stopper assembly, the upper and lower assembly and the operation of the feeder depending on the counting of the insert nut.

Description

Insert nut wire alignment inserter {A ARRAY INSERTION APPARTUS FOR INSERT NUT ON WIRE}

The present invention relates to an insert nut wire alignment inserting apparatus, and in particular, to insert the insert nut into the ejection pin without bending the ejection pin, and to be suitable to provide an optimal insert nut alignment control system A nut wire alignment insert.

In general, a case of a mobile communication terminal including a mobile phone is manufactured by injection molding made of synthetic resin, and such an injection molded product is provided with a plurality of insert nuts to insert and fix other parts. .

The insert nut is formed in a small size and is provided with a head portion formed with a flange on one side, so that it is difficult to accurately position it according to the direction of a predetermined position of the injection mold, so that the insert nut is connected to the insert supply device connected to the injection molding machine in a predetermined direction. Supplied in an ordered package.

The insert nut package of the prior art is inserted and aligned in the direction of the feed hose that the insert nut functions as a mobile tunnel.In the injection site, the air is injected into the feed hose while the insert nut package is connected to the insert nut feeder. Let's do it.

In addition, a technology for aligning such insert nuts by sequentially sewing them on a wire such as a piano wire is disclosed in Korean Patent Registration No. 10-0808058 (insert date February 28, 2008), "insert nut wire alignment inserting device" to be.

Since the "insert nut wire alignment inserting device" disclosed in Korean Patent No. 10-0808058 is described in detail in the Patent Publication, detailed description thereof will be omitted.

However, the insert nut wire alignment insertion device according to the prior art as described above has the following problems.

First, the first holder, which is configured to block insertion from the feeder into the take-off pin, has a stator supported on the frame, a lever installed opposite to the stator and pin-coupled to an upper part of the frame, and pushing the lever toward the stator or retracting from the lever. Thus, the lever is composed of a first cylinder to operate the gripping pin or to release the gripping, as described above, there is a problem that the first holder has to install three different components, respectively, so that the number of product assembly labor.

In addition, when the lever rubs with the takeout pin, there is a problem that the scratch or the takeout pin is bent in the takeout pin.

As described above, when the extraction pin is bent, the insert nut cannot be accurately aligned with the ejection part of the feeder, so that the insert nut cannot be accurately inserted into the extraction pin.

Second, the second holder for selectively holding or releasing the ejection pin is provided with a pair of upper cylinders provided with grippers opposed to both sides of the ejection pin. In the case of holding the ejection pin as the second holder, When the upper cylinder of the pair is eccentric, there is a problem that the wire is bent.

As described above, when the ejection pin is bent, the insert nut cannot be accurately inserted into the ejection pin because the ejection pin cannot be accurately aligned.

Third, in the related art, the control unit detects only the case where the insert nut reaches a specific position (that is, the upper position of the insert nut cumulative section) and operates the first holder, the second holder, and the lower holder. There was a technical limitation in the control system for the system.

The present invention was created to solve the problems of the prior art as described above, and an object of the insert nut wire alignment inserting device according to the present invention is that the insert nut can be inserted into the take-out pin without bending the take-out pin by a simple configuration. An object of the present invention is to provide an insert nut wire alignment insert.

Another object of the insert nut wire alignment inserting apparatus according to the present invention is to allow the user to set the number of insert nuts to be inserted into the extraction pin, and to allow the user to check in real time the number of insert nuts to be inserted into the extraction pin. An object of the present invention is to provide an insert nut wire alignment insert that is suitable for providing an accurate and optimal insert nut alignment control system.

Insert nut wire alignment insertion device of the present invention for achieving the above object, the mounting table; A mounting frame installed on the mounting table to mount a component; A feeder installed on the mounting table and configured to automatically align the insert nut and sequentially discharge the insert nut through a discharge port; An ejection pin having an upper end upright disposed below the ejection outlet of the feeder so that the insert nut falling from the ejection outlet of the feeder is inserted, and a wire into which the insert nut is threaded at the lower end thereof; A stopper operation cylinder installed on the mounting frame, a stopper housing fastened to the piston of the stopper operation cylinder, an elastic member in the hollow groove of the stopper housing, and a tip of the stopper housing in close contact with the tip of the elastic member. An insert nut stopper assembly configured to include a stopper that protrudes from the dropping pin and selectively passes through the insert nut falling through the take-out pin; An upper holder assembly and a lower holder assembly installed on the mounting frame below the insert nut stopper assembly to alternately grip and release the draw pins; An insert nut drop detection sensor installed at a sensor mounting stand installed on the mounting stand and sensing an insert nut falling on the extraction pin; And counting the number of falling insert nuts detected by the insert nut drop sensor and controlling the operation of the insert nut stopper assembly, the upper holder assembly, the lower holder assembly, and the feeder based on the number of counted insert nuts. Characterized in that comprises a, characterized in that is configured to include a control box.

Insert nut wire alignment insertion device of the present invention having the configuration as described above has the following effects.

First, by the configuration of the insert nut stopper assembly, the upper holder assembly and the lower holder assembly, there is an effect that the insert nut can be inserted into the takeout pin without bending the takeout pin.

Second, the user can set the number of insert nuts inserted into the extraction pin, and the user can check the number of insert nuts inserted into the extraction pin in real time to provide an accurate and optimal insert nut alignment control system. It has an effect.

The following will be described in detail with reference to the accompanying drawings a preferred embodiment of the insert nut wire alignment inserter of the present invention.

Figure 1 is a block diagram of the insert nut wire alignment insertion apparatus according to an embodiment of the present invention, Figure 2 is an enlarged cross-sectional view of the insert nut stopper assembly in Figure 1, Figure 3 in Figure 1 A plan view and an operation diagram of the upper holder assembly and the lower holder assembly in FIG. 4 are shown, and FIG. 4 is a detailed configuration diagram of the control box in FIG. 1.

As shown in Figures 1 to 4, the insert nut wire alignment inserting apparatus according to an embodiment of the present invention, the mounting frame 102, the mounting frame 104 is installed on the mounting table 102 for mounting components ), A feeder 110 installed in the mounting table 102 to automatically align the insert nut N1 to be sequentially discharged through the discharge port 110a, and an insert nut falling from the discharge port 110a of the feeder. An ejection pin 120 and an insert nut stopper assembly 130 having an upper end upright disposed below the discharge port 110a of the feeder so that the N1 is inserted therein and a wire 122 to which an insert nut N1 is sewn to the lower end is coupled. And an upper holder assembly 140 and a lower holder assembly installed on the mounting frame 104 under the insert nut stopper assembly 130 so as to alternately grip and release the extraction pin 120. 150, and the mounting table (10) 2) an insert nut drop detection sensor 161 installed on the sensor mounting table 106 installed upright and sensing the insert nut N1 falling on the take-out pin 120 and the insert nut drop detection sensor ( The insert nut stopper assembly 130, the upper holder assembly 140, the lower holder assembly 150 are counted based on the number of the inserted insert nuts N1 detected by the 161. It comprises a control box 170 for controlling the operation of the feeder 110, the insert nut stopper assembly 130 is a stopper operation cylinder 131 is installed on the mounting frame 104, and the stopper operation cylinder A stopper housing 132 fastened to the piston 131a of the 131, an elastic member 133 installed in the hollow groove 132a of the stopper housing 132, and close contact with the tip of the elastic member 133. End of the stopper housing 132 It is characterized in that it consists of a stopper 134 to selectively pass through and control the insert nut (N1) falling in and out from the take-out pin 120.

Even if the stopper 134 rubs against the ejection pin 120 or collides with the ejection pin 120, the ejection pin 120 is bent because the stopper 134 is pushed backward in the opposite direction by the configuration of the elastic member 133. The problem does not occur.

The upper holder assembly 140 is installed in the mounting frame 104, the upper cylinder 141 which is moved forward or backward by pneumatic and the direction perpendicular to the operation direction of the upper cylinder 141 horizontally (left and right It is characterized by consisting of a pair of upper holder 142 is connected to the upper cylinder 141 to operate in a direction) to hold or release gripping pin 120.

The lower holder assembly 150, like the upper holder assembly 140, is installed on the mounting frame 104, the lower cylinder 151 to move forward or backward by pneumatic and the operation direction of the lower cylinder 151 It is connected to the lower cylinder 151 so as to operate in a direction orthogonal to the horizontal (left and right directions) to hold or release the take-off pin 120, the take-off pin 120 when holding the take-off pin 120 A pair of lower holders 152 for temporarily loading the insert nut N1 falling on the rod and transferring the temporarily inserted insert nut N1 to the wire 122 when the gripping pin 120 is released. It is characterized by consisting of).

That is, when the upper holder 142 grips the takeout pin, the lower holder 152 releases the takeout pin, and when the upper holder 142 releases the takeout pin, the lower holder 152 releases the takeout pin. While holding the lower holder 152 holding the takeout pin 120, the insert nut N1 is loaded in the lower holder 152.

In addition, the upper holder 142 is formed in a pair so as to face each other in the 'b' shape to hold the take-off pin 120 when contacted to face each other and the gripping of the take-off pin 120 when spaced apart It is characterized in that the release, which is also the case in the lower holder 152.

The control box 170, as shown, the temporary loading insert nut setting unit 211 for setting the number of insert nuts (N1) to be temporarily loaded in the lower holder 152, and the temporary loading insert nut A first storage unit 221 for storing input data input from the setting unit 211, a counting unit 231 counting the number of insert nuts N1 received from the insert nut drop detection sensor 161, and By comparing the number of insert nuts N1 counted by the counting unit 231 with the number of insert nut inserts stored in the first storage unit 221, the counting unit 231 compares the set value. The microcomputer 240 outputting a first cylinder drive control signal and a feeder stop control signal when the number of counted insert nuts N1 reaches the set number of the temporary insert insert nuts, and is received from the microcomputer 240. Based on one first cylinder drive control signal On the basis of the feeder stop control signal received from the microcomputer 240 and the cylinder drive unit 250 for forward operation of the stopper operation cylinder 131 and the upper cylinder 141, and retracting the lower cylinder 151, It characterized in that it comprises a feeder drive unit 260 for controlling the stop of the drive of the feeder (110).

The temporary loading insert nut setting unit 211 is a user interface for setting the number of insert nuts N1 loaded on the lower holder 152 while the lower holder 152 grips the takeout pin 120.

In addition, the insert nut wire alignment insertion device according to an embodiment of the present invention detects that all of the insert nuts N1 temporarily loaded by the release of the lower holder 152 are transferred to the wire 122. It further comprises a transfer completion detection sensor 162, the microcomputer 240 is the second cylinder drive control signal and the feeder run control signal based on the transfer completion detection signal received from the transfer completion detection sensor 162. The cylinder driver 250 retreats the stopper operation cylinder 131 and the upper cylinder 141 based on the second cylinder drive control signal received from the microcomputer 240, and lower cylinder 151. ), And the feeder driver 260 controls run of the feeder based on the feeder run control signal received from the microcomputer 240.

The control box 170 stores a value input by the basic operation cycle repetition frequency setting unit 212 for inputting the repetition frequency of the basic operation cycle and the basic operation cycle repetition frequency setting unit 212. And an operation cycle counting unit 232 for counting the number of times the basic operation cycle is repeated based on the transfer completion detection signal received from the transfer completion detection sensor 162. It is done.

In the basic operation cycle, the insert nut N1 rides on the ejection pin 120 while the upper holder 142 releases the ejection pin 120 and the lower holder 152 grips the ejection pin 120. The dropper is loaded on the lower holder 152, and then the stopper operating cylinder 131 operates under the control of the microcomputer 240, so that the stopper 134 blocks the drop of the insert nut N1, and the upper holder 142 is It refers to a series of processes for holding the take-out pin 120 and the lower holder 152 to release the take-off pin 120 to transfer the insert nut to the wire 122.

The microcomputer 240 compares the repetition frequency of the basic operation cycle counted by the operation cycle counting unit 232 with the repetition frequency setting value of the basic operation cycle stored in the second storage unit 222, and performs the operation cycle. When the repetition number of the basic operation cycle counted by the counter unit 232 reaches the set number of repetition times of the basic operation cycle, the power supply to the feeder drive unit 260 and the cylinder drive unit 250 is cut off and controlled. It is done.

In addition, the control box 170 may include a first display unit 271 that displays the number of insert nuts N1 counted by the counter unit 231 based on the control of the microcomputer 240, and the microcomputer ( Based on the control of the 240, the second display unit 272 for displaying the number of operating cycles counted by the operation cycle counting unit 232 is characterized in that it is configured to further include.

On the other hand, the pedestal 112 is provided directly below the discharge port (110a) of the feeder 110, the pedestal 112 is formed in the center to guide the insert nut (N1) falling to the take-off pin 120 Consisting of the clearance portion 112a and the support portion 112b for receiving the insert nut falling away from the discharge port 110a of the feeder is the same as the prior art.

The following describes the operation of the insert nut wire alignment insertion device of the present invention having the configuration as described above.

First, when the number of insert nuts for temporarily loading the lower holder 152 through the temporary loading insert nut setting unit 211 (that is, the number of temporary loading insert nut settings, for example 50) is controlled, the microcomputer 240 is controlled. Is stored in the first storage unit 221 and inputs a repetition number (for example, 40 times) of the basic operation cycle through the basic operation cycle repetition frequency setting unit 212. Stored in the unit 222.

The feeder 110 is driven so that the insert nut N1 falls sequentially and is inserted into the takeout pin 20. At this time, the stopper operation cylinder 131 is in a retracted state and the upper cylinder 141 is retracted to insert the nut. The upper holder 142 is spaced apart so as not to interfere with the lowering of the N1, and the lower holder 152 holds the ejection pin 20 and supports an insert nut N1 that falls. As a result, the insert nut N1 is sequentially stacked on the lower holder 152.

The insert nut (N1) dropped and loaded as described above is detected by the insert nut drop detection sensor 161 and counted by the counting unit 231, and the microcomputer 240 is counted by the counting unit 231. The number of insert nuts N1 counted by the counter 231 is compared with the number of nuts N1 and the number of temporary insert insert nuts stored in the first storage unit 221. When the number setting value is reached, the first cylinder drive control signal and the feeder stop control signal are output.

The cylinder driving unit 250 moves forward the stopper operation cylinder 131 and the upper cylinder 141 and retracts the lower cylinder 151 based on the first cylinder driving control signal received from the microcomputer 240. do.

The feeder driver 260 stops driving the feeder 110 based on the feeder stop control signal received from the microcomputer 240.

In this way, the stopper 134 blocks the fall of the insert nut N1, the upper holder 142 grasps the takeoff pin 120, and the lower holder 152 is opened to temporarily insert the inserted nut N1 into a wire ( Transfer to 122).

The transfer completion detection sensor 162 which detects that the insert nut N1 temporarily loaded by the release of the lower holder 152 has completed the transfer to the wire 122 is a transfer completion detection signal to the microcomputer 240. The output microcomputer 240 receives the second cylinder drive control signal and the feeder run control signal.

The cylinder driver 250 retracts the stopper operation cylinder 131 and the upper cylinder 141 based on the second cylinder driving control signal received from the microcomputer 240, and moves the lower cylinder 151 forward. In operation, the feeder driver 260 controls the driving of the feeder based on the feeder run control signal received from the microcomputer 240.

Then, the lower holder 152 is again positioned as a pedestal for holding the take-off pin 20 and blocking the fall of the insert nut N1, and the upper holder 142 is opened again to open the take-out pin 120. The gripper is released and the stopper 134 retreats so as not to interfere with the fall of the insert nut N1.

Then, the transfer operation cycle to the wire 122 after the loading by the drop of the insert nut (N1) is repeated a set number of times.

At this time, the microcomputer 240 compares the repetition frequency of the basic operation cycle counted by the operation cycle counting unit 232 with the repetition frequency setting value of the basic operation cycle stored in the second storage unit 222, and performs the operation. When the repetition number of the basic operation cycle counted by the cycle counting unit 232 reaches the repetition frequency setting value of the basic operation cycle, the power supply to the feeder driver 260 and the cylinder driving unit 250 is cut off.

The above embodiments of the present invention are merely one embodiment of the technical idea of the present invention, and of course, other modifications are possible within the technical idea of the present invention.

1 is a block diagram of an insert nut wire alignment insertion apparatus according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of the insert nut stopper assembly in FIG. 1. FIG.

3 is a plan view and an operation view of the upper holder assembly and the lower holder assembly in FIG.

4 is a detailed configuration diagram of the control box in FIG. 1.

          Explanation of symbols on the main parts of the drawings

102; Mounting table 104; Mounting frame

110; Feeder 110a; Feeder outlet

120; Blowout pin 122; wire

130; Insert nut stopper assembly 131; Stopper action cylinder

131a; Piston 132 of stopper operating cylinder; Stopper Housing

133; Elastic member 134; stopper

140; Upper holder assembly 141; Upper cylinder

142; Upper holder 150; Lower holder assembly

151; Lower cylinder 152; Lower holder

161; Insert nut drop sensor 162; Transit completion sensor

170; Control box 211; Temporary insert nut setting part

212; Basic operation cycle repeat count setting unit 221; First storage

222; Second storage 231; Counter

232; Operation cycle counting unit 240; Micom

250; Cylinder drive unit 260; Feeder drive

271; First display portion 272; Second display part

Claims (6)

Mounting table 102; A mounting frame 104 installed on the mounting table 102 to mount a component; A feeder (110) installed on the mounting table (102) for automatically discharging the insert nut (N1) and sequentially discharging it through the discharge port (110a); The upper end is placed upright below the discharge port 110a of the feeder so that the insert nut N1 falling from the discharge port 110a of the feeder is inserted, and the wire 122 to which the insert nut N1 is sewn is coupled to the lower end thereof. Ejection pins 120; A stopper operation cylinder 131 installed on the mounting frame 104, a stopper housing 132 fastened to the piston 131a of the stopper operation cylinder 131, and a hollow groove 132a of the stopper housing 132. And an insert nut (N1) attached to the elastic member 133 in contact with the tip of the elastic member 133 and coming out from the tip of the stopper housing 132 and falling on the take-off pin 120. Insert nut stopper assembly 130 composed of a stopper 134 to pass through the control; An upper holder assembly 140 and a lower holder assembly 150 installed on the mounting frame 104 under the insert nut stopper assembly 130 to alternately grip and release the ejection pins 120; An insert nut drop detection sensor 161 installed on the sensor mounting table 106 installed upright on the mounting table 102 and sensing an insert nut N1 falling on the take-out pin 120; And The insert nut stopper assembly 130, the upper holder assembly 140, counting the number of insert nuts N1 falling by the insert nut drop detection sensor 161, and counting the number of insert nuts that are counted. Insert nut wire alignment insertion device, characterized in that it comprises a control box 170 for controlling the operation of the lower holder assembly 150 and the feeder 110. The method according to claim 1, The upper holder assembly 140, The upper cylinder 141 is installed on the mounting frame 104 and is moved forward or retracted by pneumatic pressure, and is connected to the upper cylinder 141 to operate in a direction orthogonal to the operation direction of the upper cylinder 141. Consists of a pair of upper holder 142 for holding or releasing gripping pin 120, The lower holder assembly 150 is installed in the mounting frame 104, the lower cylinder 151 to move forward or backward by pneumatic and the lower cylinder 151 to operate in a direction orthogonal to the operation direction of the lower cylinder 151 Connected to the lower cylinder 151, the gripping pin 120 is held or released, and when the gripping pin 120 is gripped, an insert nut N1 temporarily falling on the gripping pin 120 is temporarily loaded. Insert nut wire alignment insertion device, characterized in that consisting of a pair of lower holder 152 to transfer the insert nut (N1) temporarily loaded to the wire 122 when the gripping pin 120 is released . The method according to claim 1 or 2, The control box 170, A temporary loading insert nut setting unit (211) for setting the number of insert nuts (N1) temporarily loaded in the lower holder (152); A first storage unit 221 for storing input data input from the temporary insert nut setting unit 211; A counting unit 231 for counting the number of insert nuts N1 received from the insert nut drop detection sensor 161; The counting unit 231 compares the number of insert nuts N1 counted by the counting unit 231 with the set number of temporary insert insert nuts stored in the first storage unit 221, and counts the counting inserts 231 by the counting unit 231. A microcomputer 240 for outputting a first cylinder driving control signal and a feeder stop control signal when the number of inserted insert nuts N1 reaches the set number of the temporary loading insert nuts; A cylinder driving unit 250 for forward-operating the stopper operation cylinder 131 and the upper cylinder 141 and retreating the lower cylinder 151 based on the first cylinder driving control signal received from the microcomputer 240; Insert nut wire alignment insertion device, characterized in that it comprises a feeder drive unit 260 for stopping the drive control of the feeder 110 based on the feeder stop control signal received from the microcomputer (240). The method according to claim 3, It is configured to further include a transfer completion sensor 162 for detecting that the insert nut (N1) temporarily loaded by the gripping release of the lower holder 152 is completed transfer to all the wires 122, The microcomputer 240 outputs a second cylinder drive control signal and a feeder run control signal based on the transfer completion detection signal received from the transfer completion detection sensor 162, The cylinder driver 250 retracts the stopper operation cylinder 131 and the upper cylinder 141 based on the second cylinder driving control signal received from the microcomputer 240, and moves the lower cylinder 151 forward. And The insert nut wire alignment inserting device of claim 1, wherein the feeder driver 260 controls the driving of the feeder based on the feeder run control signal received from the microcomputer 240. The method according to claim 4, A basic operation cycle repetition number setting unit 212 for inputting a repetition number of basic operation cycles; A second storage unit (222) for storing the repeated number of times set value of the basic operation cycle inputted by the basic operation cycle repetition number setting unit (212); And An operation cycle counting unit 232 is further included to count the number of times the basic operation cycle is repeated based on the transfer completion detection signal received from the transfer completion detection sensor 162. The microcomputer 240, The repetition frequency of the basic operation cycle counted by the operation cycle counting unit 232 is compared with the repetition frequency setting value of the basic operation cycle stored in the second storage unit 222, and the operation cycle counting unit 232 is compared. Insert nut wire alignment characterized in that the power supply to the feeder drive unit 260 and the cylinder drive unit 250 is cut off and controlled when the number of repetitions of the basic operation cycle counted by the control unit reaches the set number of repetition times of the basic operation cycle. Insertion device. The method according to claim 5, A first display part 271 which displays the number of insert nuts N1 counted by the counter part 231 based on the control of the microcomputer 240; And Insert nut wire alignment insertion further comprises a second display unit 272 for displaying the number of operation cycles counted by the operation cycle counting unit 232 based on the control of the microcomputer 240. Device.

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