JPS6082522A - Separated feeding device for headed rods - Google Patents

Abstract

PURPOSE:To separate two headed rods to different places by one cycle of reciprocation of a plunger by moving a finger to guide the head of each headed rod and a finger to guide the shank part by the use of a plunger accommodated in the body, in such a way as alternately to the right and left in synchronization. CONSTITUTION:When a plunger installed inside the body 10 is moved to the left (downward as in the attached illustration) to move a shutter 25, No.1 and No.2 fingers 31a, 29a and a partition plate 36a in the same direction, each headed rod 2 sent from a chute into the body 10 is sent to the left to drop into a vertical hole 11a, so as to be in stand-by upon said shutter 25. Here the subsequent rod 2' intrudes to a place at the oversurface of finger 29a and a chin 33 of the finger 31a to be suspended there. If then the plunger is moved to the right, the rod 2' drops in another vertical hole 11b to be exhausted via shutter hole 28b and transport pipe fitting 38b. At the same time the precedent rod 2 is exhausted via another shutter hole 28a and transport pipe fitting 38a.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention separates headed rods such as screws, bolts, rivets, etc. one or two pieces aligned in a chute of a parts feeder, etc. The present invention relates to a device that uses compressed air to send rods to a predetermined location through a conveyor pipe.

Conventional Structures and Problems Various improvements have been made to this type of device in the past, but the structure has been relatively complex or its operation has been unstable.

For example, the device described in Japanese Patent Application Laid-Open No. 54-140297 is
If the screw shaft is extremely short, instability may occur due to separation at the entrance of the vertical feed member located far from the center of gravity of the screw, and conversely, if the screw shaft is extremely long, such as a countersunk head, horizontal feed The screw that has moved to the top member will be unstable due to interference from the succeeding screw head, and there is a risk that horizontal movement will be blocked by the screw shaft at the stopper of the main body and the stop surface of the screw distribution member. At the same time, it also had the disadvantage of being structurally complex.

OBJECTS OF THE INVENTION The present invention provides a headed bar separating and feeding device which eliminates the above-mentioned drawbacks, and which has a simple structure and is capable of reliably separating and feeding headed bars.

Structure of the Invention In the longitudinal direction of the chute that aligns and supports the headed bars,
A groove having a dimension substantially the same as the width of the chute in the right angle direction, two vertical holes communicating with the groove at symmetrical positions with the chute as the center, and a plunger capable of moving parallel to the groove. It consists of a built-in main body, a finger A that guides the head of the headed bar fed from the chute and transfers it along the groove, and a finger B that similarly transfers the coaxial section. It has the unique effect of being able to separate two headed bars into different positions with one reciprocating movement.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In Fig. 1, 1 is a feeder for arranging a large number of headed bars 2 on a shoot 3, and 4 is a feeder for preventing the aligned headed bars 2 from floating above the chute. E, 5 is a separating and feeding device that separates the aligned headed bars 2 into two pieces at a time and sends them to a predetermined location using compressed air; 6a;
, 6b is the headed bar 2 separated by the separation feeder 5.
It is a conveyor pipe for transporting materials to a predetermined location, and is usually /'i
It is formed by one or two hoses. Reference numeral 7a indicates an air pipe that is constantly connected to a compressed air source, and reference numeral 8 indicates an air pipe that is connected to the air pipe 7 through a valve 9 for cutting off and on the compressed air.

Next, its operation will be explained.

First, when the valve 9 is opened, the compressed air that has passed through the pulp 9 causes the separation feeding device 5 to move in one direction, and the chute 3
One of the upper headed bars 2 is inserted into one side 11a of the vertical hole in the main body.
The sample is transferred to the vertical hole, and is allowed to fall onto the shutter 25, and compressed air is injected into the transfer pipes 6a and 6b. When the pulp 9 is closed, the separating and feeding device 5 operates in the opposite direction to drop the headed bar 2 that was previously placed on the shutter 25 into the conveying pipe 6a, and also transports the subsequent headed bar into the main body. Transfer to the other vertical hole 11b, and the vertical hole.

7, it is dropped into the conveyor pipe 6b through the cylinder, but when the positive electrode air was injected into the conveyor pipes sa and eb in the previous operation, the headed bar 2 that had been dropped into the conveyor pipes 6a and eb was placed in the designated place. is pumped up to. By repeating this operation, two headed rods can be continuously sent to a predetermined location.

Next, the main parts of the separating and feeding device 6 shown in FIG. 1 will be explained in detail with reference to FIG. 2 and subsequent figures.

In FIG. 2, reference numeral 10 denotes the main body of the separating and feeding device 5, which has a concave portion 18 on the extended surface of the chute top surface through which the screw head can pass, and a groove portion 1 having the same size as the chute width, in the entrance path of the headed bar 2.
A vertical hole 11a is provided with a vertical hole 9a extending in both right angle directions at the tip thereof, and provided at a position symmetrical to the left and right with respect to the center of the chute, into which the headed bar 2 falls.

11b. Note that the groove portion 19a is a vertical hole 11a.

Both outer bottom portions 27 are one step higher than 11b.

The main body 5 further has a round hole 13 into which the plunger 12 is fitted, as shown in FIG.
14b and an air pipe joint 16a.

16b is screwed in, and air pipes 7b and 8 communicate with the respective air holes. The right end of the plunger 12 fitted into the round hole 13 of the main body 10 faces a stopper screw 21 screwed into the cylinder head 20 fixed to the main body 1°, and a plate 22 is fixed to the left end by a bolt 23. .

The lower surface of the plate 22 has a shutter 2 slidably fitted into the groove 24 of the main body 10 as shown in FIGS. 4 and 5.
It is fitted into a notch 26 provided at the left end of 5 and is interlocked with the plate. In addition, as shown in FIG. 4, the shutter 2
5 is a position where the plunger 12 is at the left end and closes the vertical holes 11a and 11b provided in the main body 1Q, and at a position where it is at the right end (not shown), / Yatta holes 28a and 28b are the drop holes 1
1a and 11b, which leads to laziness.

The finger B29 fixed to the shutter slides in the groove 19b provided in the main body 10 in a direction perpendicular to the longitudinal direction of the chute 3, and guides the shaft of the headed bar 2 sent from the chute, and guides the shaft of the headed bar 2 to the left and right sides. Vertical hole 11a.

11b. Also, vertical holes 11 at both ends of the o-ri
a, the notch is inscribed in part 11132
a, supplement 32b. In addition, the opposite surface of the finger B 2 g that is inscribed with the vertical holes 11a and 11b at both ends of the stroke is a position where the shaft portion of the headed bar 2 fed from the -1''7>- can pass. At the same time when the finger B29 stops, the upper surface of the finger B29 must be located on the extended surface of the upper surface of the chute.Then, with the jaw portion 33 of the finger A31,
Groove portion 19 where the head of the headed bar is perpendicular to the longitudinal direction of the chute
This prevents scratches and scratches when passing through a. The function of the finger B29 as described above is to create a clearance between the punch 22 and the notch 26 of the nyatta 25 to which the finger B29 is fixed, in order to make the stroke smaller than the stroke of the plunger 12 that matches the stroke of the finger A31. established,
The shutter 25 is positioned using a groove provided in the shutter 25 and a spring plunger attached to the main body.

The finger A31 is in the groove 1 in which the finger B29 slides.
The upper part of the bar 9a is regulated by the top plate 53 and the bottom part 27 of the groove part 19, and the head of the headed bar is guided and transferred to the drop holes 11a and 11b.

In this way, the headed bar 2 sent from the chute into the main body 10 is transported to the vertical hole 118% lb with its shaft portion and head restrained by the fingers B29 and fingers A31, respectively.

As shown in FIG. 5, a groove 30 is formed in the side surface of the main body 1Q, and a partition plate 36a is slidably fitted between the carp and the lid 47, and by left and right movement, the finger part 37 is moved to the head rod. Separate the shaft of the material. Next, as shown in FIG. 6, a conveying pipe joint 38a is provided at the bottom of the vertical holes 11a and 11b fitted into the main body 10.

38b are fitted together and fixed by bolts 54 and retaining plates 55. Transport pipe joint 3sa, 3s
One ends of the transport pipes 6a and eb are fitted to the lower end of the pipe b (not shown). In addition, conveyor pipe fittings saa, 3s'b
The main body 1 is provided with a slotted part 39 and a small diameter part 4Q.
The air passages 41, 42 and 43 provided at the air hole 15 communicate with the air hole 15. A rod 44 is slidably fitted into the air passage 42. A rod spring 45 that always biases the rod 44 in the direction of the plate 22 is attached to the right end of the rod 44, and a rod position adjustment bolt 46 is attached to the left end of the plate 22. The inside of the joint 38 and the air hole 15 communicate with each other. In FIG. 2, 47 is a connector that connects the main body 10 and the chute 3, and is fixed by pins 48 and 49.

Next, the operation of this separating and feeding device 5 will be explained.

By opening the valve 9 shown in FIG.
The inner plunger 12 receives compressed air sent through the air hole 15 on the right end connected to the air pipe 8, and receives air pressure over the entire right end surface through the air hole 14b on the left end, overcoming the air pressure that is constantly applied to the left end face and moving the left side. Move to. The state is shown in FIG. As the plunger 12 moves, the shutter 25, finger B29, and finger A
31 and the partition plate 36a also move to the left. This Noinga B
29. The headed bar 2 sent into the main body 10 from the chute 3 by the movement of the finger A31 is similarly transferred to the left, falls into the vertical hole 11a, and waits on the shutter 25. On the other hand, when the plunger 12 comes to the leftmost position, it communicates with the air hole 15 and the air passage 43, 42, 41 shown in FIG. 7, and the small diameter portion 40. Compressed air is blown out through the slotted portion 39 into the conveying pipes 6a, 6b. At the same time, the headed bar 2, which was next sent into the main body and was waiting, enters the upper surface of the finger B29 and the jaw portion 33 of the finger A31, is suspended, and is stopped. Next, by closing the pulp 9, compressed air is sent only into the air hole 14 on the left side shown in FIG. 3, so that the plunger 12 begins to move to the right side. As the plunger 12 moves, the shutter 25 and the finger B29, and the finger A31 and the partition plate 36a
also moves to the right. At this time, the headed bar that was suspended and stopped on the upper surface of the finger E29 and the jaw portion 33 of the finger A31 is similarly transferred to the right side and falls into the vertical hole 11b. At this time, the hole 28 of the shutter 25 is concentric with the vertical hole 11, and the headed bar 2 passes through the inside of the conveying pipe joint 38b and falls in the trench of the conveying pipe 6b. Also, the headed bar 2, which had been placed on the shutter last time, is lost in the hole in the shutter 25 and the vertical hole 11a, passes through the inside of the conveying pipe joint 38a, and falls down in the conveying pipe 6a-1. When the pulp 9 is opened again, the plunger 12 moves to the left and the conveying pipe 6a is moved.

As described above, the headed bar 2 in 6b is sent to a predetermined location through the conveying pipes 6a and eb by compressed air. By repeating the above cycle, it is possible to continuously separate and feed two headed bars 2. In the above embodiment, a device for feeding two headed bars in one cycle was described.
As shown in Figure 8, finger A31b, finger B25b
, by changing the part shape of the partition plate 36b,
It can be used as a device that feeds one screw in one cycle. In this case, the vertical hole 11 of the main body 10. shutter 25
Hole 28. The peephole in the top plate 53 can be left as is,
Only one of the left and right is sufficient.

As is clear from the description of the above embodiments, the headed separation feed device of the present invention moves the headed bar material flowing through the chute between fingers A and Finger by simply reciprocating the plunger using compressed air or the like. By means of B, it is restrained and separated, and it is transferred to the vertical hole, and the notch in the vertical hole is compensated for by the fingers B, so that it can be dropped reliably. Therefore, the structure is relatively simple, and the plunger is housed in a compact form. Furthermore, two headed rods can be fed to their respective predetermined positions with one reciprocating motion.

Effects of the Invention As described above, the present invention has a groove at a position perpendicular to the chute portion, through which the headed bar material can be transferred, and which is the same as the chute portion, and in which the headed bar material can be transferred in the groove portion. By synchronizing and moving finger A and finger B left and right using a plunger, two headed bars can be reliably separated and fed to different predetermined positions in one reciprocating motion. Furthermore, by incorporating the plunger within the main body of the separating feed section, it is possible to achieve a compact structure and to achieve miniaturization, which has significant practical effects.

[Brief explanation of drawings]

Fig. 1 is a schematic side view of a feeder using a headed bar separating and feeding device according to an embodiment of the present invention, Fig. 2 is a plan view of the headed bar separating and feeding device with the top plate removed, and Fig. 3 is a cross-sectional view of p, -A' in Fig. 2, and Fig. 4 is a cross-sectional view of BB/-A' in Fig. 2.
5 is a sectional view taken along line C-C' in FIG. 2, FIG. 6 is a sectional view taken along line D-D in FIG. 2, and FIG. The figure is a detailed sectional view showing another embodiment. 2... Bar with head, 3... Chute,
5...Separation feed device, 11...Vertical hole,
12...Plunger, 25...Shutter, 29...Finger B, 31...Finger A, 1o...Separate feed 9 parts Body. Name of agent: Patent attorney Toshio Nakao and 1 other person
1 Figure 2 @3 Figure 4 2250. ”E′

Claims (2)

[Claims] (1) Grooves with the same dimensions as the inner chute are provided in a direction perpendicular to the longitudinal direction of the chute that aligns and supports the headed bars, and the grooves communicate with the grooves at symmetrical positions with the chute as the center. A main body with two vertical holes and a built-in plunger that can move parallel to the groove, and a finger that guides the head of the headed bar sent from the chute and transfers it to the left and right in the groove. A headed rod comprising a finger A and a finger B that similarly transfers the same shaft portion, each of which is interlocked with a plunger to separate two headed rods to different positions with one reciprocating motion. Material separation feed device. (2) A groove with the same dimensions as the inner chute is provided in a direction perpendicular to the longitudinal direction of the chute that aligns and supports the headed bars, and one vertical hole is connected to the groove with respect to the center of the chute. and a finger A that guides the head of the headed bar sent from the chute and transports it in one direction along the groove; A headed bar material separating and feeding device comprising fingers B that similarly transfer shaft portions, each of which is interlocked with an actuator to separate one headed bar material in one reciprocation.