KR20000065451A - Feeding device of object to be formed for heading machine - Google Patents

Abstract

PURPOSE: A transfer device of a molded material is provided to enhance the productivity of a product. CONSTITUTION: A holder(13) reaches a position of a die hole(205) of a second die(205). The retreat action of a punch holder is finished. At the same time, a new molded material is supplied in front of the die hole of a first die(204) by a cutting/transferring device. Upon the ascending action of a lift rod(6) and the holder(13), a holding state of a firstly molded material(210) and a newly supplied/molded material(210') is released. The punch holder forwards toward the die holder. First and second punches insert the molded materials(210',210) in the die hole. Further, the punches mold some of a head in the molded material(210') and the entire head in the molded material(210).

Description

Feeding device of object for beading machine {Feeding device of object to be formed for heading machine}

The present invention relates to a heading machine for forming the head portion, in particular in the manufacture of fasteners such as screws, bolts, rivets, etc. More specifically, the heading for transferring the first molded object to the secondary molding position A workpiece conveying apparatus for a machine.

In molding the head of a fastener such as a screw, a bolt or a rivet, a part of the head is formed by the primary molding process as shown in FIG. 23, and the remaining part is formed by the secondary molding process. The number of times is reduced depending on the size of the head to be molded. In this way, shaping the head part by several molding processes requires a large force when shaping the head part by one step, leading to an increase in the size of the heading machine, and destruction of the metal structure of the formed molding. This is due to the loss of function as a.

In the conventional heading machine, the configuration related to the part directly forming the head part to be formed is for primary molding on the side of the punch holder 100 which is installed to move up and down while moving a predetermined stroke as shown in FIG. The first punch 101 is installed to be slightly elastically compressed toward the punch holder 100. The second punch 102 for secondary molding is provided at the lower portion of the first punch 101, and the die holder is fixed to the die 104 at a position separated from the punch holder 100 by a predetermined distance. 103 is fixed.

In the conventional heading machine as described above, the process of molding the head portion to be formed is as follows.

First, when the workpiece of a predetermined length reaches the position of the die hole 105 by the cutting transfer means (not shown), the holding state of the molded object is released and the punch holder 100 advances toward the die holder 103. As shown in FIG. 24, the first punch 101 inserts the object 110 into the die hole 105 and simultaneously strikes a part of the head shape to be formed in the object 110. When the primary molding process is completed, the punch holder 100 is retracted to the original position and then moved forward while being raised again so that the center of gravity of the second punch 102 and the molded object 110 is coincident. As shown in FIG. 25, the second punch 102 completes the molding of the head by hitting the object 110 again. When the molding of the head is completed, the molded object is discharged by the discharge pin 106. Is discharged from the die hole 105.

Therefore, in the conventional heading machine as described above, there is no problem in obtaining one product of a desired quality by an operation in which the punch holder 100 reciprocates twice with the punches 101 and 102. However, in the conventional heading machine, the molding operation by the first punch 101 and the molding operation by the second punch 102 are not performed at the same time, respectively. That is, in the conventional heading machine, one product cannot be obtained by one advance (one reciprocation) of the punch holder 100, and one product is obtained every two reciprocating operations. It is not.

In view of the above-described conventional problems, the present invention transfers the molded object from the first die for primary molding to the second die for secondary molding, and at the same time supplies the new molded object to the first die. An object of the present invention is to provide a molding material transfer device for a heading machine that can double the productivity of a product by simultaneously performing a molding process by a first punch and a second punch in a state where it is possible.

1 is a front view of a state in which a holding means is raised in a molded object conveying means according to a first embodiment of the present invention;

FIG. 2 is an enlarged sectional view taken along the line a-a in FIG. 1

3 is an enlarged cross-sectional view of the line b-b in FIG. 1.

4 is a front view of a state in which the holding means is lowered in the molded object conveying means according to the first embodiment of the present invention;

5 is a front view of a state in which a molded object is firstly molded and supplied to a first dice in a heading machine in which the present invention is installed;

FIG. 6 is an enlarged cross-sectional view of a first molded object in a first dice in the c-c line of FIG. 5; FIG.

7 is a front view of a state in which the holding means rises toward the first die;

8 is a front view of a state in which the holding means holds the molded object formed in the first die;

9 is a front view of a state in which the holding means descends toward the second die;

10 is a front view of a state in which a molded object is supplied and molded to the first and second dies;

11 is an enlarged cross-sectional view taken along the line d-d of FIG. 10.

12 is a front view of a state in which a holding means is raised in the molded object transport apparatus according to the second embodiment of the present invention.

FIG. 13 is an enlarged sectional view taken along the line e-e in FIG.

14 is an enlarged sectional view taken along the line f-f in FIG.

FIG. 15 is an enlarged sectional view of the line g-g in FIG.

16 is a front view of a state in which a holding means is raised in the molded object transport apparatus according to the second embodiment of the present invention.

17 is a front view of a state in which a molded object is firstly supplied to a first dice in a heading machine in which the present invention is installed;

18 is a front view of a state in which the holding means rises toward the first die;

19 is a front view of a state in which the holding means holds the molded object formed in the first die;

20 is an enlarged cross-sectional view taken along the line h-h of FIG. 19.

21 is a front view of a state in which the holding means descends toward the second die;

Fig. 22 is a front view of a state in which a molded object is supplied and molded by the first and second dies;

23 is an explanatory diagram for explaining a step of forming a head of a molded object;

24 is a sectional view showing the main parts of a state in which a molded object is first molded in a conventional heading machine;

25 is a sectional view showing the main parts of a state of secondary molding of a molded object in a conventional heading machine;

※ Code explanation for main part of drawing

1. Machine body 2. Drive shaft

3,4,5. 1, 2, 3 cam 6. Lifting rod

7. Lifting operation means 8. Lifting operation lever

13. Holding means 15. Lower finger lever

16. Upper finger lever 18,18 '. Finger

17. Center pin 19. Spring

20. Holding operating means 21. Pushing pin operating lever

30. 4 Cam 31. Guide Bushing

32. Rotating link 33. Holding means

34. Lever holder 38. Lower finger lever

39. Upper finger lever 40. Center pin

42. Tension springs 45. Molded product stoppers

46. Rod operating lever 48. Stopping arm

49. Connecting rod MD, MD '. Form transfer device

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view of a state in which a holding means is raised in a molded object transferring means according to a first embodiment of the present invention, and Fig. 2 is an enlarged sectional view taken along line a-a in Fig. 1, respectively.

Reference numeral 1 denotes a machine body, and reference numeral 2 denotes a drive shaft which is rotatably installed on the machine body 1 and driven by a motor (not shown).

The drive shaft 2 is provided with first, second and third cams 3, 4 and 5 for driving the elevating operation means 7 and the holding operating means 13 described later.

Reference numeral 6 is a lifting rod coupled to the self-aligning bearing 6a installed in the machine body 1 and capable of swinging by a predetermined angle simultaneously with the lifting operation.

The elevating rod 6 is the elevating operation within the predetermined stroke range by the elevating operation means 7 and the structure of the elevating operation means 7 is as follows.

Reference numeral 8 is an elliptical actuating lever. The lifting lever 8 is pivotally coupled to a central axis 9 of which a roller 8a coupled to an upper end thereof is in contact with an outer surface of the first cam 3 and is laterally in contact with the outer surface of the first cam 3. The distal end is rotatably coupled to the lower end of the elevating rod 6.

Reference numeral 10 is a balance lever in the shape of a fin. The center of the balance lever 10 is rotatably coupled to the central axis 9, and a roller 10a coupled to the upper lateral side front end thereof is in contact with the outer surface of the second cam 4.

One end of the limit plate 11 is fixed to the lower end of the elevating operation lever 8, and the other end of the limit plate 11 extends toward the balance lever 10, and the limit plate ( A balance spring 12 is inserted between 11) and the balance lever 10. In this configuration, the limit plate 11 and the balance lever 10 are provided with rotational forces in opposite directions to each other so that the rollers 8a and 9a are always on the outer surfaces of the first and second cams 3 and 4. Elastic contact.

In the above configuration, the shape of the first and second cams 3 and 4 is such that the lifting lever 8 and the balance lever 10 have a predetermined angle by the rotation of the first and second cams 3 and 4. It can be repeatedly rotated within a range, and in such an operation, it is always determined that the balance spring 11 is given a constant pressing force.

When the first cam 3 rotates together with the second cam 4 by the configuration of the elevating operation means as described above, the elevating operating lever 8 rotates repeatedly within a predetermined angle, and the elevating operating lever ( By the operation of 8), the lifting rod 6 is configured to repeat the lifting operation within a predetermined stroke range. In this operation, the balance spring 11 is always given a constant pressing force, and the rollers 8a, 9a are always the same on the outer surface of the first and second cams 3, 4 by the repulsive force of the balance spring 11. Even though the first and second cams 3 and 4 rotate at high speed due to the contact force, the respective operation units operated by the first and second cams 3 and 4 operate smoothly without vibration.

On the upper part of the elevating rod 6, holding means 13 for directly holding or releasing the object to be formed are installed, and the holding means 13 is configured as follows.

The lever holder 14 is coupled to the upper end of the elevating rod 6. In the lever holder 14, a lower finger lever 15 having a peak portion 15a formed on the upper portion is inclined up and down, and its longitudinal center portion is rotatable to the lever holder 14 by a center pin 15b. The roller 15c is rotatably coupled to the lower end portion of the lower finger lever 15. In addition, the upper finger lever 16 having an open long hole 16a formed at a lower portion thereof is disposed to overlap the lower finger lever 15 in a diagonal direction, and the upper end of the upper finger lever 16 has the lever holder. The center pin 16b is rotatably coupled to 14.

The upper and lower finger levers 16 and 15 as described above have the center pin 17 rotatably coupled to the top portion 15a of the lower finger lever 15 and the long hole 16a of the upper finger lever 16. It is mutually coupled by being slidably coupled to.

One end of the finger 18, 18 'is fixed to the upper end of the lower finger lever 15 and the lower end of the upper finger lever 16, and the center pin 17 is finger 18 by a spring 19. , 18 ').

In the above configuration, since the center pin 17 is provided with an elastic force toward the fingers 18 and 18 'by the spring 19, the upper finger lever 16 is clockwise and the lower finger lever 15 is half. By being given the rotational force in the clockwise direction, the fingers 18 and 18 'are mutually given the elastic force to return to the opposite state, that is, the holding state, in which the tip opposite to the fixed end is always close.

The holding means 13 as described above is switched to a holding state or a holding release state by the holding operation means 20, and the configuration of the holding operation means 20 is as follows.

Reference numeral 21 is a pushing pin actuating lever in a shape. In this pushing pin actuating lever 21, a central portion thereof is rotatably coupled to the central shaft 21a, and a roller 21b coupled to the lower end side thereof is slidably in contact with the outer surface of the third cam 5. . The western pushing pin 22 is fixed to the upper end side of the pushing pin actuating lever 21.

Reference numeral 23 is installed on the machine body 1 so as to be slidable in the horizontal direction, and the elastic force is applied to the western pushing pin 22 by a spring 24 so that one end portion thereof in the longitudinal direction is always the western pushing pin. It is a pushing pin in contact with (22). The other end of the pushing pin 23 in the longitudinal direction extends toward the holding means 13.

The reference numeral 25 indicates that the upper end portion is rotatably installed on the machine body 1 above the holding means 13, and one side near the lower end is provided with an elastic force to always contact the tip of the pushing pin 23, and the opposite side thereof. Is a pushing lever facing close to the roller 15c coupled to the lower end of the lower finger lever 15.

In the configuration of the holding operating means 20 as described above, the shape of the third cam 5 for operating the pushing pin operating lever 21 is the pushing pin operating lever 21 by the rotation of the third cam 5. ) Can be repeatedly rotated within a predetermined angle range and the pushing pin operating lever 21 is pushed by the pushing pin operating lever 21 as shown in FIG. 1 in the operation of raising the holding means 13 together with the lifting rod 6 in this operation. By holding the pin 23 and pushing the roller 15b coupled to the lower end of the lower finger lever 15 by the pushing lever 25, the holding state of the fingers 18 and 18 'is maintained and the lifting rod 6 In the operation in which the holding means 13 descends together, as shown in FIG. 4, the pushing pin 23 is retracted so that the center pin 17 is driven by the spring force of the springs 19. By moving toward the side, it is determined that the holding state of the fingers 18, 18 'can be maintained.

As described above, the heading machine to which the molded object transport device MD of the present invention is applied has a first punch 201 for primary molding and a second molding for side molding of the punch holder 200, as shown in FIG. Two punches 202 are provided at a predetermined interval up and down. And the punch holder 200 is a horizontal movement repeated as in the conventional within a predetermined stroke range, but does not require a lifting movement.

In addition, the die holder 203 is fixed at a position spaced horizontally from the punch holder 200 by a predetermined distance, and the die holder 203 has the same center of gravity as the first and second punches 201 and 202, respectively. The first die 204 for primary molding and the second die 205 for secondary molding are fixed.

In the present invention, the object transfer device MD has the front end portions of the fingers 18 and 18 'in front of the die holes 204' and 205 'of the first and second dies 204 and 205, respectively. It is installed to be located.

As described above, the operation of molding the head part to be formed by a heading machine provided with the present invention is as follows.

First, when the shaped object of the predetermined length reaches the position of the die hole 204 'of the first die 204 by the cutting conveying means (not shown), the holding state of the shaped object 210 by the cutting conveying means is released. As the punch holder 200 advances toward the die holder 203, the first punch 201 inserts the object 210 into the die hole 204 ′ and simultaneously strikes the object as shown in FIGS. 5 and 6. A part of the head to be formed at 210 is molded.

While the primary molding is performed as described above, the holding means 13 is lifted by the lifting operation of the lifting rod 6 to move toward the first die 204 as shown in FIG. 7, and the punch holder after the primary molding is completed. At the same time as the retraction operation of the 200 starts, the molded object 210 is discharged from the die hole 204 'by the discharge pin 206 and the fingers 18 and 18' of the holding means 13 As shown in 8, the discharged object 210 is held.

As described above, the point at which the fingers 18 and 18 'hold the first molded object 210 is a point at which the lowering operation is started after the ascending operation of the holding means 13 is completed. Fingers 18 and 18 'of holding means 13 holding 210 are lowered toward second die 205 as shown in FIG.

When the holding means 13 reaches the bottom dead center, i.e., the position of the die hole 205 of the second die 205, the retraction operation of the punch holder 200 is completed and at the same time, the die hole of the first die 204 In front of 204 ', a new molding is supplied by the cutting transfer means as before. At the same time as the start of the lifting operation of the lifting rod 6 and the holding means 13, when the holding state of the primary molded object 210 and the newly supplied object 210 'is released, the punch holder ( As the 200 advances toward the die holder 203, the first and second punches 201 and 202 newly supplied the molded object 210 'and the primary molded object 210 are die-holes, as shown in FIGS. 10 and 11. And inserting into 204 'and 205' and striking at the same time to form a part of the head in the object 210 'and a whole of the head in the object 210.

When the molding is completed as described above, the retraction operation of the punch holder 200 is started, and at the same time, the molded objects 210 'and 210 are discharged from the die holes 204' and 205 'by the discharge pins 206 and 260'. In addition, the primary molded object 210 'is moved to the second die 205 by the same operation as described above, and the head molding of the molded object is continuously performed by repeating such an operation.

In a second embodiment of the present invention, there is provided a workpiece transport apparatus suitable for molding a small workpiece.

In other words, when the molded object is small, the molded object is not held by the holding means beyond the proper discharge path (refer to the discharge path in the same axial direction as the die hole) during the discharge after the primary molding is completed. In this embodiment, the holding process by the holding means is intended to be accurate by limiting the discharge distance of the molded object after the primary molding is completed.

FIG. 12 is a front view of a state in which a holding means is raised in the molded object transport apparatus according to the second embodiment of the present invention, FIG. 13 is an enlarged cross-sectional view of ee line in FIG. 12, and FIG. 16 is a second embodiment of the present invention. The front view of the state in which a holding means descends in the molded object conveying apparatus which concerns on an Example is shown, respectively.

In this embodiment, the drive shaft (2) rotatably installed on the machine body (1) and driven by a motor, and the first, second, third cams (3, 4, 5) fixed to the drive shaft (2); , The elevating operation of the elevating rod (6) installed on the machine body (1), and the shape of the jaw, its central portion is rotatably coupled to the central axis (9) and the upper end side of the first cam (3) In contact with the slidable, the lateral end portion thereof has a ┌ shape with a lifting lever (8) rotatably coupled to the lower end of the lifting rod (6) so that its center portion is rotatable on the central axis (9). Coupled to the upper lateral side tip in a slidable contact with the outer surface of the second cam 4 in the opposite direction to the balance lever 10 and the lifting lever 8 and the balance lever 10. Balanced soup installed between the lifting lever 8 and the lower end of the balance lever 10 to apply power. The elevating operation means (7) made of (10) and the holding operation means (15 ') have a shape of └, the central portion thereof is rotatably coupled to the central axis (21a) and the lower end side of the third cam (5) Regarding the pushing pin operating lever 21 to slidably contact the outer surface of the pushing pin 23 and the pushing pin 23 slidably installed to receive an elastic force toward the upper end of the pushing pin operating lever 21, the same as that of the first embodiment. Do.

However, in the present embodiment, a configuration for lifting and lowering the lifting rod 6, a holding means 13 coupled to an upper portion of the lifting rod 6, and a holding lever 20 in the holding operating means 20 are described. It differs from the first embodiment.

In the present embodiment, the molded object stopper means for limiting the discharge distance of the molded object discharged after the completion of the primary molding.

Hereinafter, the specific configuration of the present embodiment will be described in detail with reference to the drawings.

As shown in FIG. 13, a fourth cam 30 for driving the molded object stop means 45 described later is fixed to the drive shaft 2.

The lifting rod 6 is slidably coupled only to the guide bushing 31 installed in the machine body 1 in the up and down direction, and the lower end of the lifting rod 6 and the side of the lifting operation lever 8. Both ends of the rotational link 32 are rotatably coupled to the front end.

By the above configuration, when the elevating operation lever 8 repeatedly rotates up and down within a predetermined angle, the elevating operating lever 8 moves up and down while the rotating link 32 rotates repeatedly from side to side. The lifting rod 6 is guided to the guide bushing 31 to enable linear reciprocating motion in the vertical direction within a predetermined stroke range.

On the upper part of the elevating rod 6, a holding means 33 for directly holding or releasing the object to be formed is installed, and the holding means 33 is configured as follows.

Reference numeral 34 denotes a lever holder, and a lower hole 34a is formed in the lower portion of the lever holder 34, and a pin hole 34b is formed from the upper end to the lower side toward the long hole 34a.

The lever holder 34 as described above is coupled to the upper end of the elevating rod (6) by the fastener 35 through the long hole (34a) and the height adjustment pin (36) is inserted into the pin hole (34b) The height adjusting nut 37 is screwed to an upper portion of the height adjusting pin 36 exposed to the upper portion of the lever holder 34.

When the height adjustment nut 37 is rotated in the state in which the fastener 35 is released by the above configuration, the height of the lever holder 34 can be adjusted as shown in FIG. 14, and the lever holder 34 is thus. It is to be able to adjust the height of the center in the holding state of the fingers (41, 41 ') fixed to the lever holder (34).

In the lever holder 34, a lower finger lever 38 having an upper portion 38a formed thereon is inclined up and down, and a lower end portion of the lower finger lever 38 is rotated to the lever holder 34 by a center pin 38b. Possibly combined. In addition, the upper finger lever 39 having an open long hole 39a formed at the bottom thereof is arranged to overlap the lower finger lever 38 in a diagonal direction, and the central portion in the longitudinal direction of the upper finger lever 39 is It is rotatably coupled to the lever holder 34 by the center pin 39b, and the roller 39c is rotatably coupled to the upper end of the upper finger lever 39.

The upper and lower finger levers 39 and 38 as described above have the center pin 40 rotatably coupled to the peak portion 38a of the lower finger lever 38 and the long hole 39a of the upper finger lever 39. It is coupled to each other by being slidably coupled to the upper end of the lower finger lever 38 and the lower end of the upper finger lever 39 is fixed to one end of the fingers (41, 41 '), respectively. In addition, a tension spring 42 is installed between the spring stay 39d and the lever holder 34 which are formed at the upper end of the upper finger lever 39.

In the above configuration, the upper finger lever 39 is always provided by the tension spring 42 in the clockwise direction and the lower finger lever 38 is provided with the elastic force in the counterclockwise direction. The tip of the opposite side of the fixed end is always given the elastic force to return to the adjacent opposing state, that is, the holding state.

Reference numeral 43 is a pushing lever in the holding operating means 20 'according to the present embodiment. This pushing lever 43 The central portion is rotatably installed on the support bracket 1a coupled to the machine body 1 on the upper side of the holding means 33, and the lower end as in the first embodiment by the compression spring 44. One side near the end is provided with an elastic force so as to always contact the tip of the pushing pin 23, the opposite side is opposed to the roller (39c) coupled to the upper end of the upper finger lever (39).

Also in the holding operation means 20 'in the present embodiment, in the operation in which the holding means 33 is raised together with the lifting rod 6, the pushing pin operating lever 21 moves the pushing pin 23 as shown in FIG. By pushing the pushing lever 25 to push the roller 39c coupled to the upper end of the upper finger lever 39, the holding state of the fingers 41 and 41 'is maintained and the holding means together with the lifting rod 6 In the lowering operation of 33, as shown in FIG. 16, the pushing pin 23 retreats so that the center pin 17 moves toward the fingers 41 and 41 'by the spring force of the spring 19. 41, 41 ') is held.

On the other hand, in the present embodiment is to be provided with a molded object stop means 45 for limiting the discharge distance of the object to be discharged after completion of the primary molding, the configuration is as follows.

Reference numeral 46 is a rod actuating lever in a shape. The rod actuating lever 46 is rotatably coupled to a central axis 21a of the central actuating portion 46 and loaded by a spring 47 provided between the rod actuating lever 46 and the machine body 1. The combined roller 46a coupled to the lower side of the elastic member is elastically in contact with the outer surface of the fourth cam 30.

Reference numeral 48 is The stopper arm is formed in the shape and pivotally installed on the support bracket 1a as shown in FIG. 15, and a stopper pin for directly stopping the discharged object from the lower end of the stopper arm 48. 48a is fixed.

The upper end portions of the rod operating lever 46 and the stopping arm 48 are rotatably connected to both ends in the longitudinal direction of the connecting rod 49 so that the connecting rod 49 pushes the stopping arm 48. The stopping pin 48a coupled to the bottom of the topping arm 48 is configured to move downward.

The shape of the fourth cam 30 for operating the rod operating lever 46 in the molded object stopping means 45 is such that the rod operating lever 46 is rotated by the rotation of the fourth cam 30. The rod operation lever 46 may be rotated within a predetermined angle range, and the rod operation lever 46 may be connected to the rod as shown in FIGS. 19 and 20 when the primary molded object is discharged in this operation. 49, the stopping arm 48 is rotated downward to push the stopping pin 48a coupled to the lower end of the stopping arm 48 to move forward in the discharge direction of the first molded object. It is determined to limit the discharge distance of the molding.

The molded object conveying apparatus MD 'according to the present embodiment as described above is installed in the heading machine as in the first embodiment, and the shaped object conveying apparatus MD' of the present embodiment is mounted on the shaped object by the heading machine installed. The operation of shaping the head is as follows.

First, as shown in the first embodiment, when the shaped object of a predetermined length reaches the position of the die hole 204 'of the first die 204 by the cutting conveying means (not shown), the shaped object 210 by the cutting conveying means. And the punch holder 200 advances toward the die holder 203 and the first punch 201 causes the molding 210 to die-form the object 210 as shown in FIG. 17 and FIG. 6 of the first embodiment. 204 ') and at the same time hitting to form a part of the head to be formed on the object to be formed (210).

While the primary molding is performed as described above, the holding means 33 is lifted by the lifting operation of the lifting rod 6 as shown in FIG. 18 to move toward the first die 204, and after the primary molding is completed, the punch holder ( At the same time as the retraction operation of the 200 starts, the molded object 210 is discharged from the die hole 204 'by the discharge pin 206 as in the first embodiment.

When the discharge of the object 210 is completed, as shown in FIGS. 19 and 20, the stopping arm 48 of the object stopper 45 is lowered by the stopping pin 48a. By moving forward in the discharge direction of the molded object, the discharge of the molded object is prevented and at the same time, the fingers 41 and 41 'of the holding means 33 moved toward the first die 204 are discharged from the molded object 210. Hold.

As described above, the point at which the fingers 41 and 41 'hold the first molded object 210 is a point at which the lowering operation is started after the ascending operation of the holding means 13 is completed. Fingers 41 and 41 'of the holding means 13 holding 210 are lowered toward the second die 205 as shown in FIG.

When the holding means 13 reaches the bottom dead center, that is, the position of the die hole 205 of the second die 205, the retraction operation of the punch holder 200 is completed and at the same time, the die hole of the first die 204 In front of 204 ', a new molding is supplied by the cutting transfer means as before. When the holding state of the primary molded object 210 and the newly supplied object 210 'is released simultaneously with the start of the lifting operation of the lifting rod 6 and the holding means 33, the punch holder ( As the 200 is advanced toward the die holder 203, the first and second punches 201 and 202 newly supplied with the first and second punches 201 and 202 as shown in FIGS. 22 and 11 of the first embodiment and the first molded article 210 are formed. ) Is inserted into the die holes 204 ′ and 205 ′ and hit at the same time to form a part of the head in the object 210 ′ and a whole of the head in the object 210 as in the first embodiment.

When the molding is completed as described above, the retracting operation of the punch holder 200 is started as in the first embodiment, and at the same time, the moldings 210 'and 210 are formed by the discharge pins 206 and 260'. 205 '), and the head molding of the molding is continuously performed by repeating the same operation as before.

The molded object conveying apparatus according to the first embodiment transfers the first molded object from the first die to the second die for secondary molding. Therefore, when the present invention as described above is installed in the heading machine, the process of supplying the molding to the first die and the first molded molding from the first die to the second die can be performed simultaneously. Since the first and second punches can be molded simultaneously with the first and second punches, the product can be continuously produced by one reciprocation of the punches, and the productivity can be doubled as compared with the prior art. In addition, in the heading machine to which the present invention is applied, the punch holder continues only the repeated horizontal motion, so that the vibration of the device can be remarkably reduced as compared to the conventional heading machine in which the punch holder simultaneously performs the horizontal motion and the lifting motion. Due to this, the durability can be greatly improved, and the cost of raising the production cost of the device can be reduced by omitting the configuration for lifting and lowering the punch holder.

According to the second aspect of the present invention, in the discharging process of the first molded object, when the object reaches the proper discharging position, discharge of the molded object is prevented by the object stopper and the holding means is held in this state. The holding of the object is made correctly. Accordingly, the molded object conveying apparatus of the second embodiment has the effect of providing a heading machine suitable for molding a small shaped object which is particularly easy to escape the discharge path, in addition to the effect of the shaped object conveying apparatus of the first embodiment.

In addition, the molded object conveying apparatus of the present invention is to be transported from the upper side to the lower side, it is possible to miniaturize the device.

Claims (4)

Machine body 1; A drive shaft (2) rotatably installed on the machine body (1) and driven by a motor; First, second and third cams 3, 4 and 5 fixed to the drive shaft 2; A lifting rod 6 coupled to the self-aligning bearing 6a installed in the machine body 1 and capable of oscillating by a predetermined angle at the same time as the lifting operation; The center portion is pivotally coupled to the central axis 9 and its upper end side is slidably in contact with the outer surface of the first cam 3, while the lateral tip thereof is An elevating operation lever 8 rotatably coupled to a lower end portion, and having a ┌ shape, a central portion thereof rotatably coupled to the central axis 9, and an upper lateral side end portion thereof on an outer surface of the second cam 4; The balance lever 10 and the lift lever 8 and the balance lever 10 which are slidably in contact with the lift lever 8 and the balance lever 10 in order to impart rotational forces in opposite directions to each other. Elevating operation means (7) comprising a balance spring (10) provided between the lower ends; A lever holder 14 coupled to an upper end of the elevating rod 6 and a hill 15a formed at an upper portion thereof are disposed to be inclined up and down in the lever holder 14, and a central portion thereof in the longitudinal direction thereof is provided with a lever holder ( 14 and a lower finger lever 15 rotatably coupled to the lower finger, and an open long hole 16a is formed at a lower portion thereof so as to overlap the lower finger lever 15 in a diagonal direction, and an upper end thereof is disposed at the lever holder 14. Rotatably coupled to the upper finger lever 16 rotatably coupled to the peak portion 15a of the lower finger lever 15 and slidably coupled to the long hole 16a of the upper finger lever 16. A center pin 17, a pair of fingers 18 and 18 'fixed to an upper end of the lower finger lever 15 and a lower end of the upper finger lever 16, and a finger to the center pin 17; Holding means (13) made of a spring (19) for imparting an elastic force toward 18,18 '; └ shape and the center portion is pivotally coupled to the central axis (21a), the lower end side of the pushing pin operating lever 21 and the sliding pin operating lever slidably contacting the outer surface of the third cam (5), the pushing pin operating lever Sliding is installed so as to receive an elastic force toward the upper end of the 21 and one end is extended to the holding means 13 toward the pushing pin 23 and the upper end to be pivotable to the machine body (1) While being installed, one side near the lower end is provided with an elastic force so as to always be in contact with the front end of the pushing pin 23, and the opposite side is a holding operation made of the pushing lever 25 facing the lower end of the lower finger lever 15. Means 20; When the elevating operation lever rotates repeatedly within a predetermined angle by the rotation of the first and second cams, the holding means is repeatedly lifted and operated together with the lifting rod, and at the same time, the third cam is lifted. The pushing pin actuating lever actuated by the pushing pin pushes the pushing pin and the pushing lever pushes the lower end of the lower finger lever, thereby maintaining the holding state of the fingers mutually.In the operation of the holding means descending, the pushing pin retreats and the An object transporting device for a heading machine, characterized in that the holding state of the finger is maintained by the action of the elastic force toward the finger on the center pin. 2. The self-aligning bearing (6a) according to claim 1 is replaced by a guide bushing (31) for guiding the lifting rod (6) only in the up and down direction, and the lower end of the lifting rod (6) and the lifting lever (8). The lateral end of the molding material transport apparatus for a heading machine, characterized in that the two ends of the rotary link 32 is rotatably installed. The holding means (33), the lever holder 34 coupled to the upper end of the elevating rod (6), and the upper portion (38a) is formed on the upper and inclined up and down on the lever holder 34 In addition, the lower finger lever 38 is rotatably coupled to the lever holder 34 and an open long hole 39a is formed at the lower portion thereof so as to overlap the lower finger lever 38 diagonally. The upper finger lever 39 is pivotally coupled to the lever holder 34 in a longitudinal direction, and the upper finger lever 39 is rotatably coupled to the peak portion 38a of the lower finger lever 38. A pair of fingers 41 and 41 'fixed to the upper end of the lower finger lever 38 and the lower end of the upper finger lever 39 and the center pin 40 slidably coupled to the long hole 39a. And an upper end and a lever of the upper finger lever 39 to impart an elastic force in the clockwise direction to the upper finger lever 39. The tension spring 42 is provided between the holder 34, the pushing lever 43 in the holding operation means (20 ') has a ┌ shape, the center portion is rotatably installed on the machine body (1) and the lower end portion One side near the end is given an elastic force so as to always be in contact with the tip of the pushing pin (23) and the opposite side is a workpiece transport apparatus for a heading machine, characterized in that to face the upper end of the upper finger lever (39). The method according to any one of claims 1 to 4, wherein the drive shaft (2) is provided with a fourth cam (30) and driven by the fourth cam (30) to drive the workpiece stopping means (45). To limit the discharge distance of the molded object, the molding stopper means 45, └ shape and the center portion is rotatably coupled to the central axis (21a) and the lower end side of the rod actuating lever (46) for elastically slidably contacting the outer surface of the fourth cam (30), A stopper arm 48 pivotally provided at a center thereof on the machine body 1 above the holding means 33, one end in the longitudinal direction at the upper end of the rod actuating lever 46, and the other end at the It is made of a connecting rod 49 rotatably coupled to the upper end of the topping arm 48, The rod operating lever actuated by the fourth cam at the completion of discharge of the primary molded object is configured to limit the discharge distance of the molded object by pushing the connecting rod to rotate the lower end of the stopping arm downward. Molded material transfer device for the heading machine.