KR102322271B1 - Injection molding system with automatic feeding of insert parts and control method thereof - Google Patents

Abstract

The objective of the present invention is to provide an injection molding system in which the automatic supply and delivery of parts to a required position of a mold where injection molding is performed can be accomplished quickly and accurately, and a controlling method thereof. The injection molding system of the present invention in which insert parts are automatically supplied comprises: a part supply device which stores a large amount of insert parts, such as bushes or nuts, and injects a fluid according to a part detection signal of a sensor disposed at a predetermined position on a part supply line, thereby allowing the parts to be ejected and supplied one by one; and an insert injection molding device which is provided separately from the part supply device, has the parts supplied from the part supply device mounted on a part mounting portion, and performs the injection molding after automatically arranging the respective parts inside an injection mold portion at the required positions into which the parts will be inserted, one by one, by being interlocked with the opening/closing operations of the injection mold portion.

Description

Injection molding system with automatic feeding of insert parts and control method thereof {Injection molding system with automatic feeding of insert parts and control method thereof}

The present invention relates to an injection molding system in which insert parts are automatically supplied and a control method thereof, and more particularly, the present invention improves the conventional insert injection molding method in which an operator or robot supplies parts to an injection mold one by one, It relates to an injection molding system in which an automated insert part is automatically supplied and a control method therefor so that the supply and delivery of parts to a required position of a mold where molding is made can be automatically and accurately and quickly.

In general, an injection machine is a device that injects resin into a mold to make injection molded products such as automobile bumpers, phone cases, and monitor cases. By injection molding, an insert part is integrally molded into an injection-molded article is called insert injection.

In the case of insert injection, when the volume is large, the operator can directly insert the insert part into the injection mold while visually checking it. However, in the case of insert parts with very small size, it is difficult for the operator to check the position one by one, and a person enters the mold directly. There was a problem in that the risk of an industrial accident exists when the work is confirmed with the naked eye.

In order to compensate for this problem, after performing injection molding in advance, the required insert part is heated, and it is driven into the injection molded article using a back-pressure machine. Although the method of attaching it to the product is also used, there is another problem in that the process time becomes longer as the process is added, thereby lowering the process efficiency and increasing the production cost.

Therefore, as described above, the method in which the operator directly puts the part into the injection mold is defective because the position of the insert part varies depending on the melting point of the injection molded product, the temperature of the insert part, and the skill of the operator. There is a problem in that the incidence rate is high, and the method using the back press also has a problem in that workability and productivity are lowered because insert parts must be inserted one by one into the injection molded product.

Therefore, recently, an insert unit that automatically grips a small-sized insert part such as a small nut using an automated robot and inserts the gripped insert part into an injection mold for insert injection. It has been released and applied in the field.

However, this insert unit moves one insert part at a time, and when several identical parts need to be inserted, the same robot has to repeat the same operation several times, or it cannot be applied to products with different insert press-in directions or complex products. There was no problem.

In addition, in order to realize the insert process of parts, since the parts feeding process, parts supply process, parts take-out and insert process are performed, the scale of the equipment increases, the structure of the equipment is complicated, and the efficiency and productivity of the operation are still low. This occurred.

Korean Patent Registration No. 10-0804449 (2008.02.20. Announcement) Korean Patent Registration No. 10-1105901 (2012.01.17. Announcement)

Accordingly, the present invention has been devised to solve the above problems, and the present invention improves the conventional insert injection molding method in which an operator or a robot supplies parts to an injection mold one by one, so that the injection molding is performed at the required position of the mold. An object of the present invention is to provide an injection molding system in which an automated insert part is automatically supplied, and a control method thereof, so that the supply and delivery of parts can be performed automatically, accurately and quickly.

According to an embodiment, the injection molding system for automatically supplying insert parts of the present invention for achieving the above object stores a large amount of insert parts, such as bushes or nuts, and a sensor disposed at a predetermined position on the parts supply line. a component supply device for firing and supplying the components one by one by injecting a fluid according to a component detection signal of the; And it is provided separately from the part supply device, the parts supplied from the parts supply device are seated on the part seating part, and are interlocked by the opening and closing operation of the injection mold part to automatically insert the parts inside the injection mold part one by one at the required positions to be inserted. and an insert injection molding device that performs injection molding after being disposed as a .

In addition, according to an embodiment, the sensor includes a component supply detection sensor and a component movement detection sensor provided in the component seating portion, and the component supply detection sensor and the component movement detection sensor detect whether the component is seated or remains, respectively. The obtained component detection signal is transmitted to the control unit.

In addition, according to an embodiment, the automatic insert injection molding apparatus may include: an injection mold unit provided with a molding die in which injection molding is performed in a state in which a part is press-fitted on one side; a mold opening and closing unit provided in a state opposite to the molding mold of the injection mold part to open and close the mold while being coupled or separated from the injection mold part during injection molding; and a component delivery device unit that automatically inserts parts into the mold immediately before the mold is closed while rotating according to the coupling or separation operation of the opening and closing part of the mold.

In addition, according to an embodiment, the mold opening/closing unit may include: a first opening/closing frame for opening and closing the mold while directly contacting or separating from the injection mold unit in a state in which the component delivery device unit is provided therein; and a first opening/closing frame provided opposite the injection mold part of the first opening/closing frame to elastically push and separating the first opening/closing frame when the injection mold part is opened, or coupled with the injection mold part with the first opening/closing frame interposed therebetween when the injection mold part is closed 2 opening and closing frames;

In addition, according to an embodiment, a resilient spring is further provided between the first opening and closing frame and the second opening and closing frame to elastically push the first opening and closing frame from the second opening and closing frame when the injection mold unit is opened.

In addition, according to an embodiment, a detachable slot is formed in the vertical frame toward the injection mold part of the first opening/closing frame, and a component delivery device is fitted and coupled to the detachable slot. A hole is formed.

In addition, according to an embodiment, a part guide tube is further provided on the upper end of the first opening/closing frame, and after the part guide tube is penetrated into the first opening/closing frame and coupled to the inside of the first opening/closing frame, the part is transferred to the first opening/closing frame through the part guide tube. It is supplied to the combined parts delivery device unit.

In addition, according to an embodiment, at least one part delivery device operated by an inclined pin or a hydraulic cylinder is additionally provided on a portion of the circumferential surface of the injection mold part except for the mold.

On the other hand, the control method of the injection molding system in which the insert parts of the present invention are automatically supplied,

(a) by injecting a fluid from the parts supply device, firing the parts one by one and supplying the parts to the seating part of the insert injection molding device; (b) transmitting, by the component supply detection sensor, a component detection signal obtained by detecting whether the component is seated on the component seating part to the control unit; (c) when it is sensed that the part is seated on the part seating part in step b, the part seating part is rotated by the closing operation of the injection mold part and inserting the part into a position where the part inside the injection mold part needs to be inserted; (d) performing insert injection molding in the injection mold unit; (e) immediately before step d proceeds, at the same time as step d proceeds or immediately after step d proceeds, the component movement detection sensor detects whether the component remains in the component seating portion and transmits the obtained component detection signal to the control unit ; (f) when it is detected that the part does not remain in the part seating part in step e, determining that the part has been properly inserted in the required position and supplying the part from the part supply device to the part seating part again; .

Also, according to one embodiment, in step c, when it is detected that the part is not seated on the part seating part, the control unit immediately stops the part supply device and the insert injection molding device and generates an alarm.

In addition, according to an embodiment, in the step f, when it is detected that a part remains in the part seating part, the control unit immediately stops the part supply device and the insert injection molding device and generates an alarm.

The injection molding system in which the insert part of the present invention is automatically supplied as described above can automatically and accurately and quickly supply the parts to the required position of the injection mold that requires the supply of the parts by the part delivery device mounted in the injection mold, , through which insert injection can be performed quickly and easily through press-fitting of parts, thereby reducing process time and improving process efficiency, as well as significantly reducing the defect rate.

In addition, the parts delivery device unit according to the present invention receives the parts and places the parts on the parts seating part and the operations of transferring the parts seated on the parts seating part and supplying the parts to the required positions are all continuously performed in one process, and further Since the operation of the cylinder in the fixed body is performed quickly at a short operating distance, there is an effect of improving the efficient arrangement of the device and the operability of the device.

In addition, when the rotating part of the parts delivery device part is rotated 90 degrees downward by receiving the parts from above, the push part of the cylinder presses the cam part of the rotating part to firmly support it. It has the effect of preventing damage that may occur on the shaft of the motor.

1 is a system conceptual diagram showing an injection molding system in which an insert part is automatically supplied according to an embodiment of the present invention;
2 is a flowchart illustrating a system control sequence of FIG. 1 according to an embodiment;
3 is a perspective view illustrating the insert injection molding apparatus of FIG. 1 according to an embodiment;
4 is a longitudinal cross-sectional view of FIG.
5 is a partial perspective view AA′ of FIG. 4;
6 is a longitudinal cross-sectional view showing the insert injection molding apparatus of FIG. 1 according to another embodiment;
Figure 7 is a perspective view of the main part showing the parts delivery device of Figure 4;
8 is an exploded perspective view of FIG.
9 is an operation state diagram of the component delivery device of FIG. 7 , (a) is a state in which the rotating part is rotated upward by 90 degrees, and the parts are supplied, (b) is a state in which the parts are inserted into the parts seating part, (c) is The state in which the rotating part rotates according to the lowering of the cylinder, (d) is a state in which the push part presses and supports the rotating part while the rotating part is rotated 90 degrees downward while inserting the parts
10 is a reference view showing a representative embodiment of the part used in the injection molding system to which the insert part of the present invention is automatically supplied.
11 is a cross-sectional view of a main part for explaining the structure of the part seating part that varies depending on the structure of the part in the injection molding system in which the insert part is automatically supplied according to the present invention;
12 is a reference view showing an example of insert press-fitting of the supplied part using the injection molding system in which the present invention insert part is automatically supplied.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as "comprise" or "have" to "include" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the present specification exist, but one It should be understood that it does not preclude the existence or addition of other features or numbers, steps, operations, components, parts, or combinations thereof, or other features or more.

Unless defined otherwise herein, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present specification. shouldn't

Hereinafter, with reference to the accompanying drawings, the configuration and operation relationship of the automatic insert injection molding apparatus of the present invention will be described in detail as follows.

1 is a system conceptual diagram showing an injection molding system in which an insert part is automatically supplied according to an embodiment of the present invention.

Referring to FIG. 1 , the injection molding system for automatically supplying insert parts according to the present invention may be largely composed of a parts supply device 1 and an insert injection molding device 2 .

First, the parts supply device 1 stores a large amount of insert parts P, such as bushes or nuts, and injects a fluid according to the parts detection signal of the sensor 500 disposed at a predetermined position on the parts supply line. The parts P are fired one by one and supplied to the insert injection molding apparatus 2 .

According to an embodiment, the sensor 500 may be divided into a component supply detection sensor 501 and a component movement detection sensor 502 provided in the component seating unit 300 (refer to FIG. 9 ).

First, as shown in FIG. 1A , the component supply detection sensor 501 installed on the component supply path through which the component P is launched and supplied detects this and detects whether the component P is properly supplied.

On the other hand, the insert injection molding device (2) is provided separately from the component supply device (1) and can communicate with the component supply device (1) by wire or wirelessly, and the parts supplied from the component supply device (1) ( P) is seated on the part seating part 300 (refer to FIG. 9) and is interlocked by the opening and closing operation of the injection mold part 10 to insert the part P inside the injection mold part 10. A required position Injection molding is performed one by one automatically.

At this time, referring to FIG. 1B , the part seating part 300 is rotated 90 degrees to the left when the injection mold part 10 is closed, and the part P is put into the injection mold part 10 .

On the other hand, when the injection molding is completed, the injection molded product (I) is taken out from the injection mold unit. Detects whether or not the part P is not detected in the part seating part 300 , the control unit (not shown) determines that the part P is properly inserted into the injection mold part 10 .

As described above, the component detection signal obtained by the component supply detection sensor 501 and the component movement detection sensor 502 is transmitted to the control unit (not shown), whereby the control unit automatically supplies the insert parts of the present invention through injection molding. will control the system.

In addition, if necessary, only the configuration of the component movement detection sensor 502 may detect the supply of components and whether they remain.

The configuration of the component supply detection sensor 501 and the component movement detection sensor 502 will be described in more detail in the description of FIG. 9 to be described later.

FIG. 2 is a flowchart illustrating a system control sequence of FIG. 1 according to an exemplary embodiment.

Referring to FIG. 2 , the control method of the injection molding system in which the insert part of the present invention is automatically supplied may be performed according to the sequence according to the following exemplary embodiment.

(S1) is a step in which the parts supply and insert injection molding process starts.

The step S1 is a step in which power is applied to the component supply device 1 and the insert injection molding device 2 . In this step, power is applied to each device, and the insert injection molding process is prepared by the injection molding system in which the insert parts of the present invention are automatically supplied.

(S2) is a step of checking whether there are any abnormalities in the parts supply device and the insert injection molding device.

In the step S2, it is checked whether power is normally applied to the component supply device 1 and the insert injection molding device 2, and whether each device 1, 2 and the component P are positioned for the process. is a step The state check in this step may be performed visually by the operator, or the system may automatically perform self-inspection by an automation program.

(S3) is a step of inputting a line to be fired among several component supply lines of the component supply device.

According to one embodiment, the component supply device 1 used in the injection molding system to which the insert component of the present invention is automatically supplied may include a plurality of component firing holes (not shown).

Therefore, in the step S3, by setting the component P to be fired at the same time from several component firing holes (not shown) to supply the component P to a plurality of required positions inside the insert injection molding apparatus 2 at the same time. can be set.

(S4) is a step of setting the part delivery device part of the insert injection molding apparatus to the automatic mode in the control unit.

In the step S4, for example, the operation of the part delivery device 30 (see FIGS. 4 to 9) of the insert injection molding apparatus 2 is performed in an 'automatic mode' or a 'manual mode' through an external control panel (not shown). ' to change the setting.

If the operation of the part delivery device unit 30 is set to 'manual mode', the operation of the 'automatic mode' of the parts supply device 1 and the parts delivery device unit 300 is stopped, and the operator selectively It can be set to supply the part (P).

(S5) is a step of supplying the components (P) one by one by injecting the fluid from the component supply device (1) is supplied to the component seating portion 300 of the insert injection molding device (2).

(S6) is a step in which the component supply detection sensor 501 detects whether the component P is seated on the component mounting unit 300 and transmits a component detection signal obtained to the control unit (not shown).

(S7) is the injection mold part while the part seating part 300 is rotated by the operation of closing the injection mold part 10 when it is detected that the part P is seated on the part seating part 30 in step S6. 10) It is a step of putting the part (P) in the required position where the internal part (P) is to be inserted.

(S8) is a step in which insert injection molding is performed in the injection mold unit 10 .

(S10) is a part detection signal obtained by detecting whether or not the part 300 remains in the part seating part 300 immediately after the step S9 is performed by the part movement detection sensor 502 to the controller (not shown) This is the sending step.

In step S10, it has been described that step S10 proceeds immediately after step S9, but it is not necessarily limited thereto. More preferably, if step S10 proceeds immediately before step S8 or at the same time as step S8 proceeds It is possible to prevent unnecessary material waste by detecting a defect in which the part P is not properly inserted before injection molding and blocking the injection molding process in advance.

(S11) is, in the step S10, when it is detected that the component (P) does not remain in the component seating part 300, it is determined that the component (P) is properly inserted at the required position, and in the component supply device (1) It is a step of supplying the component (P) to the component mounting part (300) again.

(S12) is a step of terminating the parts supply and injection molding process.

(S91) is, in the step S6, when it is detected that the component P is not seated on the component seating unit 300, the control unit (not shown) immediately controls the component supply device 1 and the insert injection molding device 2 Step S91 of stopping and generating an alarm may be further performed.

Similarly, in the step S10, when it is detected that the component P remains in the component seating portion 300, the control unit (not shown) immediately stops the component supply device 1 and the insert injection molding device 2 and Step S91 of generating an alarm may further proceed.

In (S92), after the step S91 is performed, the system check step S92 of properly taking action on the cause of the failure after checking the entire system may be further performed.

3 is a perspective view showing the insert injection molding apparatus of FIG. 1 according to an embodiment, FIG. 4 is a longitudinal cross-sectional view of FIG. 3, and FIG. 5 is a partial perspective view taken along line A-A' of FIG.

First, the injection mold part 10 provided with the molding die 10a in which injection molding is performed in a state in which the component P is press-fitted on one side is provided.

In addition, on the right side of the injection mold part 10 in the drawing, the injection mold part 10 is opposed to the mold 10a and spaced apart by a predetermined distance to be coupled or separated from the injection mold part 10 during injection molding. A mold opening and closing part 20 for opening and closing the mold 10a is provided.

At this time, although not shown in the drawings, one side of the injection mold part 10 and the mold opening and closing part 20 is mounted on the injection machine in order to perform an operation in which the injection mold part 10 and the mold opening and closing part 20 are coupled or separated from each other. It moves horizontally according to the operation of the injection machine.

On the other hand, the inside of the mold opening and closing part 20 is rotated according to the coupling or separation operation of the mold opening and closing part 20, and the part P is automatically put into the mold 10a just before the mold 10a is closed. A component delivery device unit 30 is provided.

The configuration of the component delivery device unit 30 will be described later in detail with reference to FIG. 7 .

Therefore, when the injection mold part 10 and the mold opening/closing part 20 are coupled to each other for injection molding, the part P to be insert-injected into the mold 10a of the injection mold part 10, for example, a bush or a nut It automatically transmits the back so that it can be accurately and quickly attached to a desired position within the mold 10a.

Referring to FIG. 4 , the mold opening/closing unit 20 opens and closes the mold while directly contacting or separating the injection mold unit 10 with the component delivery device unit 30 provided therein, according to an embodiment. is provided on the opposite side of the injection mold part 10 of the first opening and closing frame 21 to elastically push the first opening and closing frame 21 when the injection mold part 10 is opened It may be separated or divided into a second opening/closing frame 22 coupled to the injection mold unit 10 with the first opening/closing frame 21 interposed therebetween when the injection mold unit 10 is closed.

In addition, a resilient spring 23 may be further provided between the first opening and closing frame 21 and the second opening and closing frame 22 . When the injection mold unit 10 is opened by the resilient force of the resilient spring 23 , the first opening/closing frame 21 may be elastically pushed away from the second opening/closing frame 22 .

To this end, the resilient spring 23 may be implemented as a large-diameter coil spring to push and separate the first opening/closing frame 21 and the second opening/closing frame 22 .

On the other hand, a detachable slot 211a is formed in the vertical frame 211 on the injection mold part 10 side of the first opening/closing frame 21, and the component delivery device 30 is fitted and coupled to the detachable slot 211a. and a part transfer hole 211b communicating toward the injection mold part 10 is formed inside the detachable slot 211a.

In addition, the part guide tube 25 is further provided at the upper end of the first opening/closing frame 21 , and after the part guide tube 25 is penetrated into the first opening/closing frame 21 and coupled to the inside of the first opening/closing frame 21 , the part guide tube 25 . ) through the component (P) is supplied to the component delivery device unit 30 coupled to the first opening and closing frame 21.

Therefore, the component (P) supplied through the component guide tube 25 is seated on the component delivery device unit 30 inside the first opening/closing frame 21, and the rotating part 300 of the component delivery device unit 30. ) is rotated by the linear movement of the cylinder 200 and accurately and quickly delivers the part P to the mold 10a of the injection mold unit 10 through the part delivery hole 211b.

Thereafter, injection molding is performed including the component P delivered by the component delivery device 30 , thereby completing the manufacture of the insert-molded product in which the component P is integrated.

In addition, a buffer spring 24 may be further provided at the end of the cylinder 200 of the component delivery device 30 . Even if the cylinder 200 coupled to the second opening and closing frame 22 through the buffer spring 24 moves a little further in the horizontal direction, the buffer spring 24 compensates for the error in the horizontal movement distance of the cylinder 200. Adjust as (24) is compressed and adjusted so that the part seating part is always in the ideal position to receive the part.

At this time, when the cylinder 200 moves less, correction is not performed, and it is preferable that the cylinder 200 is always moved more.

On the other hand, referring to FIG. 5 , the sensor cable C of the component supply detection sensor 501 and the component movement detection sensor 502 of the component delivery device unit 30 to be described later in FIG. 9 is the first opening/closing frame 21 of FIG. By extending to the outside of the first opening/closing frame 21 through the cable guide hole 211c formed by penetrating the vertical frame 211 vertically, it is possible to facilitate location management of the component guide tube 25 .

6 is a longitudinal cross-sectional view showing the insert injection molding apparatus of FIG. 1 according to another embodiment.

6, in the automatic insert injection device of the present invention, in addition to supplying the insert in the mold operation direction, the part delivery device unit 30 can be additionally positioned in various directions other than the operation axial direction of the mold, The additional component delivery device unit 30 may be additionally provided to variously supply the insert parts (P) to the corresponding positions of the mold by being operated through an inclined pin or a hydraulic cylinder.

For example, in the case of using the inclined pin 27 as shown in FIG. 6 , another component delivery device unit 30-1 is further installed on the upper side of the injection mold unit 10, and the added another component While the inclined block 28 is installed thereon for driving the transmission unit 30-1, the inclined pin 27 fixed to the first opening/closing frame 21 is provided with the upper and lower inclined blocks 28a and 28b. ) by operating left and right in the state inserted in the component delivery device 30-1 is driven.

That is, in the state in which the injection mold part 10 and the first opening/closing frame 21 are coupled as shown in FIG. 6 , the upper and lower inclined blocks 28a and 28b keep in contact with the inclined pins 27 , When the injection mold part 10 and the first opening/closing frame 21 are separated, the upper inclined block 28a contacted by the inclined pin 27 is lifted upward. Accordingly, another component delivery device unit 30-1 mounted on the upper part of the injection mold part 10 is moved inside the injection mold part 10 by the operation of the above-described inclined pin 27 and the upper inclined block 28a. It can be operated to put the part (P) into the mold (10a) of the.

On the other hand, by adding a hydraulic cylinder or gear structure to the inclined pin 27 and the inclined blocks 28a and 28b (not shown), and controlling the operation of the hydraulic cylinder or gear, the hydraulic cylinder is used immediately before injection molding. Since the equivalent function can be realized even by supplying the component P, various modifications can be made in the device design.

Figure 7 is a perspective view of the main part showing the parts delivery device of Figure 4, Figure 8 is an exploded perspective view of Figure 7, Figure 9 is an operational state diagram of the parts delivery device of Figure 7, (a) is the rotating part rotates upward 90 degrees (b) is a state in which the part is inserted into the part seating part, (c) is a state in which the rotating part is rotated according to the descent of the cylinder, (d) is a state in which the rotating part is rotated 90 degrees downward It is a state in which the part is press-fitted while the push part presses and supports the rotating part.

As shown in FIGS. 7 to 9 , the component delivery device unit 30 according to an embodiment of the present invention includes a fixed body 100 , a cylinder 200 , a rotating unit 300 , and a component supply unit 400 . is composed by

First, the fixed body 100 has a sliding part 110 opened in the vertical direction in the vertical direction, and a rotation inducing space 150 in the form of a 1/4 ellipse communicating with one side of the sliding part 110 .

In addition, a rotation induction part 130 for guiding the upward and downward rotation of the rotation part by 90 degrees is provided on the periphery of the axis of the rotation part 300 , one side wall of the sliding part 110 and the middle part of the cylinder 200 .

Here, the rotation induction part 130 is a first rotation induction protrusion 131 formed on the axis of the rotation unit, a second rotation induction protrusion 132 formed on one side wall of the sliding part, and the first rotation induction projection 131 adjacent to each other. The cam portion 133 formed by doing so, and the push portion 134 formed to be stepped at the middle portion of the cylinder 200 and contacted with the cam portion 133 eccentrically to the shaft 330 of the rotating portion 300 .

On the other hand, the rotation induction space 150 on the 1/4 ellipse has a vertical surface 151 that is caught in a state rotated 90 degrees upward so that the part seating part 310 is in a horizontal state, and the part seating part 310 is It consists of a horizontal surface 152 which is engaged in a state rotated 90 degrees to the left to achieve a horizontal state, and a curved surface 153 provided between the vertical surface 151 and the horizontal surface 152 .

A cylinder 200 that moves in a straight line is coupled to the sliding part 110 of the fixed body 100 .

And, the rotating part 300 is coupled to the lower end of the cylinder 200 coupled to the sliding part 110 of the fixed body 100 . That is, on both sides of the lower end of the cylinder 200, both ends of the rotating part 300 are provided with holes 210 to which the shaft 330 is coupled, and both ends of the rotating part 300 are rotated through the holes 210 on both sides of the cylinder. A return spring 340 in the form of a coil is added on the shaft 330 between the cylinder 200 and the rotating part 300 so that the upward rotation of the rotating part 300 can be made elastically.

In addition, at one end of the rotating part 300 , a part seating part 310 for guiding the seating of the part P in a direction perpendicular to the axis 330 is formed, and the shaft 330 coupling part of the rotating part 300 . A first rotation-inducing protrusion 131 engaged with the second rotation-inducing protrusion 132 formed on the sliding unit 110 is formed around the periphery.

In addition, referring to FIG. 9 , in the rotational part 300 horizontally moving along the cylinder 200 during linear motion of the cylinder 200 , the first rotation induction protrusion 131 is engaged with the second rotation induction protrusion 132 . is rotated to the left, and according to the rotation of the rotating part 300, the direction of the component seating part 310 is changed to face 90 degrees to the left.

In addition, the cam part 133 formed above the rotation part 300 is in eccentric contact with the push part 134 of the cylinder 200. As the cylinder 200 moves to the left as shown in FIG. 9c, the push part 134 rotates while being in contact with the circumferential surface of the cam part 133 .

Then, when the rotating part 300 is rotated to the left by 90 degrees as described above, the component seating part 310 of the rotating part 300 is straightened to the left as shown in FIG. 9D, and at this time, the first rotation inducing protrusion 131 ) is fitted to the step portion 134a of the push unit 134 , and the end of the push unit 134 presses the upper surface of the cam unit 133 to be horizontally flattened.

Therefore, as the cam part 133 and the push part 134 are coupled to be closely supported, the cylinder 200 moves further to the left in this state to place the part P seated on the part seating part 310 to the injection product. When press-fitting to insert, since the push part 134 presses and supports the cam part 133 , the pushing force transmitted to the shaft 330 of the rotation part 300 is dispersed to the push part 134 and the rotation part 300 . can survive without being damaged.

At this time, as a buffer spring 24 is further provided at the end of the cylinder 200 , it cushions the pressing force transmitted to the shaft 330 of the rotation unit 300 and the rotation unit 300 . The flexible compensation for left and right movement is as described above.

On the other hand, the rotation induction space 150 has a vertical surface 151 so that the component seating part 310 of the rotation unit 300 is caught in a vertical state, and rotates 90 degrees to the left and then is locked in a horizontal state ( 152).

In addition, between the vertical plane 151 and the horizontal plane 152, the part seating part 310 in which the part P is inserted is not caught during rotation and the part P is separated from the magnet 320, but the part seating part 310 ), it is understandable that the curved surface 153 is formed to be close along the rotation path of the end of the component seating part 310 so as not to deviate from it.

On the other hand, as shown in FIG. 9, the first rotation inducing protrusion 131 and the second rotation inducing protrusion 132 of the rotation inducing part 130 are formed of a plurality of projections having a predetermined pitch so as to be engaged with each other.

Here, the first and second rotation inducing protrusions 131 and 132 can be deformed into various shapes such as semicircular, rectangular, and gear-shaped protrusions, and any structure capable of rotating the rotating part 300 by being engaged is ok.

10 is a reference view showing a representative embodiment of the part used in the injection molding system to which the insert part of the present invention is automatically supplied.

On the other hand, as shown in Figure 10, a representative component (P) to be seated on the component seating portion 310 includes a nut (a), a bolt (b), a bush (c), a pin (d), in addition to the fluid ( For example, any part that can be fired using blowing air) can be used.

11 is a cross-sectional view of a main part for explaining the structure of a part seating part that varies depending on the structure of the part in the injection molding system in which the insert part is automatically supplied according to the present invention.

In addition, as shown in FIG. 11 , the structure of the component seating part 310 may vary depending on the shape of the component P. As shown in FIG.

Referring to (a) and (b) of FIG. 11 , when the inside of the component has a hole structure, the component seating part 310 is provided with a seating pin 311 for guiding the seating of the component (P). And, the magnet 320 for preventing the separation of the component (P) is built on the outside of the seating pin (311). At this time, the seating pin 311 may have a round inlet of the seating pin in order to increase the seating property of the component, and may further include an adhesion guide ridge 312 on the inside.

In addition, as shown in (c) and (d) of FIG. 11 , when a component has an axis such as a pin or a bolt, the component seating part 310 is provided with a seating hole 313 into which the shaft of the component is inserted, and is mounted. Inside the hole 313 is a magnet 320 to prevent the separation of the component is built.

In addition, the component seating part 310 can be changed in various angles according to the rotation of the rotating part 300, and the installation position of the component supply part 400 is determined according to the rotation angle of the component seating part 310, that is, the rotation direction. may vary.

The component supply unit 400 supplies the component P toward the component mounting unit 310 by injecting a fluid (eg, air) so that the component P is seated on the component mounting unit 310 . Therefore, it is understandable that the component supply unit 400 has a flow path for supplying the component P to correspond to the component seating unit 310 .

That is, when the part seating part 310 is rotated 90 degrees according to the rotation of the rotation part 300 as shown in FIGS. 7 to 9 above, the parts supply part 400 corresponds to the part seating part 310 so that it corresponds. It is provided through the side of the fixed body (100).

In addition to this, the rotation induction space 150 of the fixed body 100 may further include a sensor 500 for confirming the seating and remaining of the component P seated on the component seating part 310 .

The sensor 500 may include a component supply detection sensor 501 and a component movement detection sensor 502 . The component supply detection sensor 501 checks whether a component is inserted, and the component movement detection sensor 502 checks whether the component P is seated on the component seating unit 310 .

The component delivery device according to the present invention configured as described above, as shown in FIGS. 7 to 9 , the cylinder 200 is coupled to the sliding part 110 of the fixed body 100 , and is rotated at the lower end of the cylinder 200 . The eastern part 300 is coupled, and the component seating part 310 provided in the rotating part 300 has a shape protruding to the outside of the fixed body 100 in the longitudinal direction of the cylinder 300 .

First, as shown in Figure 9a, the component (P) is supplied from the component supply unit 400, at this time, the component (P) is moved by the injection pressure of a fluid (eg, air) to the component seating portion (310) It is inserted and seated as shown in FIG. 9b.

Then, as shown in FIG. 9c, when the cylinder 200 moves in a straight line and descends, the rotation unit 300 coupled to the cylinder 200 rotates by induction of the rotation induction unit 130 in the rotation induction space 150. The direction of the component seating part 310 is switched as shown in FIG. 9D by the rotation of the rotating part 300 . That is, the component seating part 310 protrudes outwardly of the cylinder 200 , and is turned toward the inside of the cylinder 200 by rotation of the rotating part 300 .

12 is a reference diagram illustrating an example of insert press-fitting of a supplied part using an injection molding system in which an insert part of the present invention is automatically supplied.

And, the part seating part 310 descends further to press-fit the part P into the injection-molded product I, so that the insert injection is performed quickly and at the same time as the press-fitting of the parts P such as nuts, bolts, and bushes as in FIG. 12 . can be done easily.

Then, when the insert press-fitting of the component (P) is all completed, the cylinder 200 moves linearly and rises again. At this time, the rotation unit 300 coupled to the cylinder 200 is rotated by the induction The rotation is reversed, and the direction of the component seating part 310 is converted to the original state by the rotation of the rotation part 300 as shown in FIG. 9A .

Therefore, by using the present invention, it is possible to quickly and stably supply the parts to the necessary positions of the equipment that requires the supply of the parts, such as the parts press-in equipment, the parts transfer equipment, the injection mold.

In addition, receiving and seating the component (P) on the component seating portion 310 and transporting the component (P) seated on the component seating portion 310 and supplying it to a required position are performed in one process, and furthermore, the fixed body Since it is simply performed by the operation of the cylinder 200 and the rotating part 300 in 100 , it becomes possible to improve the efficient arrangement of the device and the operability of the device.

In addition, the present invention is not limited only by the above-described embodiment, and since it is possible to create the same effect even when changing the detailed configuration or number and arrangement of the device, those of ordinary skill in the art will present the present invention It is specified that various additions, deletions, and modifications are possible within the scope of the technical idea of

1: Part supply device 2: Insert injection molding device
10: injection mold part 10a: molding mold
20: mold opening and closing part 21: first opening and closing frame
22: second opening and closing frame 23: elastic spring
24: buffer spring 25: part guide tube
26: fixing bolt 30: parts delivery device part
100: fixed body 110: sliding part
130: rotation induction part 131: first rotation induction protrusion
132: second rotation induction protrusion 133: cam part
134: push unit 150: rotation induction space
151: vertical plane 152: horizontal plane
153: curved surface 200: cylinder
210: hall 300: rotating part
310: part seating part 311: seating pin
312: adhesion guide jaw 313: seating hole
320: magnet 330: axis
340: return spring 400: parts supply part
500: sensor P: part
I: Injection molded product C: Sensor cable

Claims (10)

a component supply device that stores insert parts including bushes, nuts, or bolts, and injects a fluid according to a component detection signal of a sensor disposed at a predetermined position on a component supply line, thereby firing and supplying the components one by one; and
It is provided separately from the parts supply device, and the parts supplied from the parts supply device are seated on the part seating part, and are interlocked by the opening and closing operation of the injection mold part to automatically insert the parts inside the injection mold part one by one at the required positions to be inserted. Insert injection molding apparatus for performing injection molding after disposing; including,
The insert injection molding device,
an injection mold unit provided with a mold on one side of which injection molding is performed in a state in which the parts are press-fitted;
a mold opening and closing unit provided in a state opposite to the molding mold of the injection mold part to open and close the mold while being coupled or separated from the injection mold part during injection molding; and
and a parts delivery device unit that automatically inserts parts into the mold just before the mold closes while rotating according to the coupling or separation operation of the opening and closing part of the mold.
The mold opening and closing part,
a first opening/closing frame for opening and closing the mold while in direct contact with or separated from the injection mold with the component delivery device provided therein; and
A second provided on the opposite side of the injection mold part of the first opening and closing frame to elastically push and separate the first opening and closing frame when the injection mold part is opened or coupled to the injection mold part with the first opening and closing frame interposed therebetween when the injection mold part is closed opening and closing frame; including,
A detachable slot is formed in the vertical frame toward the injection mold part of the first opening/closing frame, and a part delivery device is fitted and coupled to the detachable slot, and a part delivery hole communicating with the injection mold part is formed inside the detachable slot,
Injection molding system with automatic feeding of insert parts. The method of claim 1,
The sensor is
Consists of a component supply detection sensor and a component movement detection sensor provided in the component seating portion, wherein the component supply detection sensor and the component movement detection sensor detect the seating and remaining of the components, respectively, and transmits a component detection signal obtained to the control unit,
Injection molding system with automatic feeding of insert parts. delete delete The method of claim 1,
An elastic spring is further provided between the first opening and closing frame and the second opening and closing frame to elastically push and separate the first opening and closing frame from the second opening and closing frame when the injection mold part is opened,
Injection molding system with automatic feeding of insert parts. delete The method of claim 1,
A part guide tube is further provided at the upper end of the first opening/closing frame, and after the part guide tube is penetrated and coupled into the first opening/closing frame, the part is supplied to the part delivery device unit coupled to the first opening/closing frame through the part guide tube felled,
Injection molding system with automatic feeding of insert parts. (a) by injecting a fluid from the parts supply device, firing the parts one by one and supplying the parts to the seating part of the insert injection molding device;
(b) transmitting, by the component supply detection sensor, a component detection signal obtained by detecting whether the component is seated on the component seating part to the control unit;
(c) when it is sensed that the part is seated on the part seating part in step b, the part seating part is rotated by the closing operation of the injection mold part and inserting the part into a position where the part inside the injection mold part needs to be inserted;
(d) performing insert injection molding in the injection mold unit;
(e) immediately before step d proceeds, at the same time as step d proceeds or immediately after step d proceeds, the component movement detection sensor detects whether the component remains in the component seating portion and transmits the obtained component detection signal to the control unit ;
(f) in the step e, when it is detected that the component does not remain in the component seating portion, determining that the component is properly inserted at the required position and supplying the component from the component supply device to the component seating portion again; includes;
The injection mold part is further provided with a mold opening and closing part that opens and closes the mold while being coupled or separated from the injection mold part during injection molding in a state opposite to the mold,
The mold opening and closing part,
a first opening/closing frame for opening and closing the mold while in direct contact with or separated from the injection mold in a state in which the component delivery device is provided therein; and
A second provided on the opposite side of the injection mold part of the first opening and closing frame to elastically push and separate the first opening and closing frame when the injection mold part is opened or coupled with the injection mold part with the first opening and closing frame interposed therebetween when the injection mold part is closed opening and closing frame; including,
A detachable slot is formed in the vertical frame toward the injection mold part of the first opening/closing frame, and a part delivery device is fitted and coupled to the detachable slot, and a part delivery hole communicating with the injection mold part is formed inside the detachable slot,
A control method for an injection molding system in which insert parts are automatically fed. 9. The method of claim 8,
In the step c, when it is detected that the part is not seated in the part seating part, the control unit immediately stops the part supply device and the insert injection molding device and generates an alarm,
A control method for an injection molding system in which insert parts are automatically fed. 9. The method of claim 8,
In the step f, when it is detected that a part remains in the part seating part, the control unit immediately stops the part supply device and the insert injection molding device and generates an alarm,
A control method for an injection molding system in which insert parts are automatically fed.

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