JPH06263225A - Intermittent feeding device - Google Patents

Abstract

PURPOSE:To provide an intermittent feeding device which can be simply and economically constituted for both sandwiching method by which an article to be fed is sandwiched and fed intermittently and the feeding pin method by which the article to be fed is fed intermittenty by engaging a feeding pin with the pin hole of the article to be fed. CONSTITUTION:An intermittent feeding device is provided with a clamp unit 1 whose position is fixed, a feeding unit 2 supported by guide rods 3a and 3b arranged under a feeding path 6 for an article to be fed and a driving means 4 for reciprocating this feeding unit 2. And driving cylinders 8 and 16 for elevating and driving elevating tables 9 and 17 of both units 1 and 2 are arranged under bases 7 and 15 located under the feeding path 6 so that the motion of piston rods of these driving cylinders 8 and 16 may be transmitted to the elevating tables 9 and 17 above the feeding path through elevating rods 10a, 18a and 18b arranged both right and left sides of the feeding path 6. Also, feeding pins 38a and 38b which can be fitted in pin holes 40a... of the article to be fed W are provided on the elevating table 17 of the feeding unit 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is suitable for intermittently sending a material to be conveyed, which is a material for a press machine or various processing machines, in particular, a strip-shaped material to be conveyed, by a constant stroke in its length direction. The present invention relates to an intermittent feeding device.

[0002]

2. Description of the Related Art As an intermittent feeding device of this type, a feed pin which fits into pin holes provided at equal intervals on a strip-shaped object to be conveyed is used to convey the object to be conveyed. A feed pin type intermittent feeding device that is configured to perform intermittent feeding with high precision without causing slippage, and a clamping type intermittent feeding device that simply feeds a strip-shaped object to be conveyed from above and below. It is known that the conventional intermittent feeding device is configured only for the feed pin method or for the pinching method, and is used at the final assembly stage on the manufacturer side or at the user side. I couldn't easily change the feeding method.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, the features of which will be described with reference numerals of embodiments described later in parentheses. As shown, the intermittent feeding device of the present invention is a clamp unit (1) for fixing the position of the transferred object (W) when the transferred object is stopped.
And the guide rods (3a, 3b) that are arranged below the conveyed object feeding path (6) in parallel with the conveyed object feeding path direction, and are movably supported by the guide rods (3a, 3b). A feeding unit (2) and a driving means (4) for reciprocating the feeding unit (2) in the direction of the conveyed object feeding path, the intermittent feeding device comprising a clamp unit (1) and a feeding unit (2). 2)
Both of them are the bases located under the conveyed object feeding path (6).
(7,15), the drive cylinders (8,16) arranged on the lower side of the base (7,15), and the lift table (8) arranged on the upper side of the conveyed object feeding path (6). 9 and 17) and the piston rod (8
a, 16a) and a pair of left and right lifting rods (10a, 10b, 18a, 18b) interlockingly connecting the lifting platform (9, 17), and the clamp unit (1) is mounted on its base (7). The transferred object receiving part (35) is provided, and the lifting table (9) is provided with a holding part (36) for holding and fixing the transferred object (W) with the transferred object receiving part (35). The feed unit (2) is mounted on the lift table (17) so that it can be fitted into the pin holes (40a, 40b) of the transferred object (W).
b) and a holding part (44) for holding and fixing the transferred object (W) between the transferred object receiving part (42) provided on the base (15). It is characterized by the fact that it consists of

Further, in the intermittent feeding device in which the feed pins (38a, 38b) are provided on the lift table (17) of the feed unit (2), at least the reciprocating movement area of the feed unit (2) is covered. The base (15) of the feeding unit (2) with the length to obtain
It is possible to install a guided object guide (5) located between the elevator and the lift (17). The guided object guide (5) is provided with concave grooves (33a, 33b) in which the tips of the feed pins (38a, 38b) of the feed unit lift table (17) are loosely fitted to move.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. The embodiments shown in FIGS. 1 to 4 show the case where the present invention is implemented as a feed pin type intermittent feeding device. , 1 is a clamp unit, 2 is a feed unit, 3
Reference numerals a and 3b are a pair of left and right guide rods, 4 is a feed unit driving means, and 5 is a guided object guide.

As shown in FIGS. 1A and 2, the clamp unit 1 includes a base 7 located below the feed path 6 for the strip-shaped object W to be conveyed, and a base 7 vertically below the base 7. Drive cylinder 8 mounted on the feeding path 6, an elevating table 9 arranged above the feeding path 6, a pair of left and right elevating rods 10a and 10b arranged on both left and right sides of the feeding path 6, and the elevating rods 10a and 10b. And a pair of springs 12a and 12b for urging both the elevating rods 10a and 10b in the descending direction. ing.
Reference numerals 13a and 13b denote lifting rod guides, which are attached to the lower sides of the left and right ends of the base 7,
10b penetrates so that it can move up and down. Left and right ends of the lifting platform 9 are detachably installed on the upper ends of the lifting rods 10a and 10b by nuts 14a and 14b screwed onto the upper end screw shafts of the lifting rods 10a and 10b.

As shown in FIGS. 1A and 1B, the feeding unit 2 includes a base 15 located below the feed path 6 for the strip-shaped object W to be conveyed, and a base 15 vertically below the base 15. Drive cylinder 16 mounted on the feeding path 6, a lift 17 arranged on the upper side of the feed path 6, a pair of left and right lifting rods 18a and 18b arranged on both the left and right sides of the feed path 6, and the lifting rods 18a and 18b. And a pair of springs 20a and 20b for urging both the elevating rods 18a and 18b in the ascending direction. ing. Reference numerals 21a and 21b denote lifting rod guides, which are attached to the lower sides of the left and right ends of the base 15, and the lifting rods 18a and 18b penetrate vertically. The lift table 17 has lift rods 18a and 18b at both left and right ends thereof.
Is detachably installed on the upper end of the lifting rods 18a and 18b by nuts 22a and 22b that are screwed into the upper end screw shaft portions of the lifting rods 18a and 18b.

The guide rods 3a and 3b are installed between a pair of front and rear support plates 23a and 23b, and the clamp unit 1
The side end projects from the support plate 23a, and the base 7 of the clamp unit 1 is supported by the support plate 23a via the guide rod mounting members 24a and 24b, as shown in FIG. Of course, the base 7 of the clamp unit 1 is simultaneously bolted directly to the support plate 23a. As shown in FIG. 1, the base 15 of the feeding unit 2 includes a slide guide 25.
It is supported by the guide rods 3a and 3b via a and 25b so as to be movable in the conveyed object feeding path direction.

The feeding unit driving means 4 is shown in FIG. 1B and FIG.
As shown in FIG. 3, the servo motor 27 and the support plate 23 supported by the support plate 23 a via the bracket 26.
a screw shaft 28 rotatably supported between a and 23b, a pair of pulleys 29a and 29b for connecting the screw shaft 28 and the output shaft 27a of the servomotor 27, and a belt 30;
And a nut member 31 screwed onto the screw shaft 28 and attached to the base 15 of the feed unit 2, and the feed unit 2 is reciprocally moved by a constant stroke in the conveyed object feed path direction by the forward and reverse rotation of the screw shaft 28. It is what makes me.

As shown in FIGS. 1B, 2 and 4A, the guided object guide 5 has a recessed portion into which a strip-shaped transported object W is movably fitted in the transported object feed path direction. 32, and a pair of left and right recessed grooves 33a formed in the bottom of the recessed portion 32,
33b and has a total length from a position on the base 7 of the clamp unit 1 to a position beyond the forward limit position of the feed unit 2 (the position shown by the phantom line in FIG. 1A), and one end thereof is supported. It is fixed on the plate 23a and the base 7 of the clamp unit 1, and the other end is fixed on the support plate 23b. The base 15 and the lift 17 of the feeding unit 2 are located above and below the transported object guide table 5, and on the base 15 on both left and right sides of the transported object guide table 5. Side guides 34a and 34b for receiving the lift 17 are provided.

The clamp unit 1 is shown in FIGS. 2 and 4A.
As shown in FIG. 3, a receiving portion 35 and a pressing portion 36 for sandwiching and fixing the transported object W from above and below are provided.
Specifically, the receiving portion 35 is also used as the upper surface of the base of the concave recess 32 of the guided object guide 5 that is fixed on the base 7, and the pressing portion 36 is provided below the lift table 9. It is composed of the lower surface of the attached pressing member 37. Further, as shown in FIG. 1B, a pair of feed pins 38a and 38b are provided on the lift table 17 of the feed unit 2. The feed pins 38a, 38b are provided so as to project downward from the feed pin support base 39 attached to the lower side of the lift table 17, and the pair of left and right concave grooves 33a in the guided object guide base 5 are provided.
It is located directly above 33b.

As shown in FIG. 4B, the strip-shaped object W to be conveyed has the same spacing as the reciprocating stroke of the feeding unit 2 (the die-cutting pitch) on both right and left sides of a thin strip that is die-cut at equal intervals. Therefore, a pair of left and right pin holes 40a, 40b are formed at an interval equal to the interval between the pair of left and right feed pins 38a, 38b in the feed unit 2.

The object W to be conveyed is fitted in the concave portion 32 of the object guide base 5 as shown in FIGS.
As shown in FIG. 3, the pin holes 40a and 40b are set directly below the feed pins 38a and 38b of the feed unit 2 in the retracted limit position. In this state, the piston rod 1 of the drive cylinder 16 in the feed unit 2
6a is lowered, and the lifting platform 17 is urged by the springs 20a and 20b to the lower limit level where it abuts the side guides 34a and 34b on the base 15 via the connecting plate 19 and the pair of left and right lifting rods 18a and 18b. It resists and descends. As a result, as shown in FIG. 4A, the feed pin 38
a and 38b are fitted into the pin holes 40a and 40b of the transported object W, and the tips thereof are concave grooves 33a and 33b of the transported object guide table 5.
It will be fitted to.

Next, the piston rod 8a of the driving cylinder 8 in the clamp unit 1 is raised to move the connecting plate 1
1 and the pair of left and right elevating rods 10a and 10b, the elevating table 9 is raised to the ascending limit level against the biasing force of the springs 12a and 12b, and as shown in FIG. 35 (the upper surface of the concave portion 32 of the transported object guide base 5) is lifted and separated to release the clamping and fixing action of the transported object W. In such a state, the servo motor 27 in the drive means 4 is operated to rotate the screw shaft 28 in the normal rotation direction. As a result, the feed unit 2 becomes the guide rod 3
Since it is guided by a and 3b to move forward by a predetermined stroke, the feed pins 38a and 38b of the feed unit 2 feed the transported object W by the pitch of the pin holes 40a and 40b. At this time, the transferred object W is transferred to the transferred object guide table 5
The inside of the concave portion 32 is slid.

When the feed unit 2 reaches the forward limit position and stops, the piston rod 8a of the drive cylinder 8 in the clamp unit 1 is made free, and the connecting plate 11 and the pair of left and right lifting rods 10a and 10b are moved. The lifting table 9 is lowered by the urging force of the springs 12a and 12b, and the transferred object W is received by the pressing portion 36 as shown in FIG. 2 (the upper surface of the concave portion 32 of the transferred object guide table 5). ) Side to clamp and fix. Next, the piston rod 16a of the drive cylinder 16 in the feed unit 2 is made free, and the connecting plate 19 and the pair of left and right lifting rods 18a,
The lifting table 17 is raised to the upper limit level by the urging force of the springs 20a and 20b via 18b, and the feed pins 38a and 38b are disengaged from the pin holes 40a and 40b of the transported object W as shown in FIG. 1B. .

Thereafter, the screw shaft 28 of the driving means 4 is rotationally driven in the reverse direction by the servo motor 27, and the feed unit 2
Move backward to the original backward limit position. As a result, the feed pins 38a and 38b of the feed unit 2 are located directly above the pin holes 40a and 40b, which are one pitch before the pin holes 40a and 40b of the transported object W that were fitted in the previous feed stroke. Will be done. Hereinafter, by repeatedly performing the above operation, it is possible to intermittently feed the transported object W by the stroke of the feeding unit 2.

The above is the embodiment of the feed pin system, but when it is carried out as a sandwiching type intermittent feed device, as shown in FIGS. 5 and 6, the guided object guide 5 is removed and the clamp unit 1 is used. The receiving member 41 which constitutes the receiving portion 35 (see FIG. 2) in the previous embodiment is mounted on the base 7 of the above, and the receiving portion 42 is formed on the base 15 of the feeding unit 2. A receiving member 43 is attached, and a holding member 45 constituting a holding portion 44 is attached to the lifting table 17 in the feeding unit 2 instead of the feeding pin support table 39. Of course, the lift 17 having the feed pins 38a and 38b
Alternatively, the lifting table 17 having the pressing member 45 may be installed between the upper ends of the lifting rods 18a and 18b.

According to the sandwiching type intermittent feeding device having the above-described structure, the clamp unit 1 is used as in the previous embodiment.
By operating the feed unit 2 and the feed unit 2, the transferred object W is received by the receiving portion 42 on the base 15 side of the feed unit 2.
It can be intermittently fed by the stroke of the feeding unit 2 by being sandwiched between it and the holding portion 44 on the lifting table 17 side.

[0019]

As described above, according to the intermittent feeding device of the present invention, the clamp unit of fixed position and the feeding unit reciprocating in the direction of the conveyed object feed path are alternately acted to form a strip plate shape. The object to be conveyed can be intermittently sent by one stroke of the feed unit. However, not only the guide rod that guides the feed unit, but also the drive cylinder that drives the clamp unit and the lift base of the feed unit up and down. On the lower side of the pedestal located on the lower side of the conveyed object feeding path, and the movement of the piston rod of this driving cylinder is controlled by the lifting rods arranged on both left and right sides of the conveyed object feeding path. Since it is configured to transmit to the lift table on the upper side of the conveyed object feed path, the drive cylinder that drives the lift table of each unit located directly above the conveyed object feed path to move vertically Compared with the case where it is arranged on the side, the work such as assembling and exchanging the lifting table, replacing the holding part and the feed pin of the lifting table, and attaching and detaching the object receiving part on the base are performed. Easy and easy to do.

In other words, assembling or exchanging the elevator table, replacing the holding portion or the feed pin provided on the elevator table, or removing the object on the base without touching the elevator drive system including the drive cylinder. Since work such as attaching / detaching the transported object receiving part can be performed easily and easily, at the final stage of assembly on the maker side, it is possible to decide whether to finish with the pinching type intermittent feeding device or the feed pin type intermittent feeding device. It is possible to construct an intermittent feeding device of two different types, which is very simple, easy and economical.

Also on the user side, it is possible to easily and easily and economically change from one of the sandwiching type intermittent feeding device and the feeding pin type intermittent feeding device to the other. Further, since only the lifting table is located above the conveyed object feeding path, maintenance and inspection work of the conveyed object feeding path can be performed easily, easily and accurately.

In particular, as shown in the embodiments, in the case of carrying out as an intermittent feeding device in which the feed pins are provided on the lifting table of the feeding unit, it has a length capable of covering at least the reciprocating movement area of the feeding unit. In addition, there is provided a guided object guide table located between the base of the feed unit and the lift table, the guided object guide table having a concave groove in which the tip of the feed pin of the feed unit lift table moves loosely. When arranging,
Although the transported object is intermittently transported by the feed pin method, even if the transported object is a thin strip plate, it can be smoothly and reliably transported without being bent.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a feed pin system, and FIG. 1B is a vertical sectional right side view showing the feed unit.

FIG. 2 is a left side view showing a clamp unit.

FIG. 3 is a rear view showing driving means.

FIG. 4A is a partially vertical schematic front view for explaining the operation of the clamp unit and the feed unit, and FIG. 4B is a plan view showing a strip-plate-like transported object with pin holes.

FIG. 5 is a front view showing an embodiment of a holding method.

FIG. 6 is a right side view in vertical section showing the feeding unit of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Clamp unit 2 Feed unit 3a Guide rod 3b Guide rod 4 Feed unit drive means 5 Conveyance object guide 6 Conveyed object feed path 7 Clamp unit base 8 Lifting drive cylinder 9 Clamp unit lift stand 10a Lift rod 10b Elevating rod 11 Connecting plate 12a Elevating rod lowering spring 12b Elevating rod lowering spring 15 Feed unit base 16 Elevating drive cylinder 17 Elevating rod of feed unit 18a Elevating rod 18b Elevating rod 19 Connecting plate 20a Elevating rod pushing spring 20b Elevating rod pushing spring 27 Servo motor 28 Screw shaft 31 Nut member 33a Conveyor guide guide groove 33b Conveyor guide base groove 35 Conveyor receiving part 36 Conveyor retainer 38a Feed Pin 38b Feed pin 40a Pin hole of the conveyed object 40b Pin hole of the conveyed object 42 Conveyed object receiving portion 44 Conveyed object holding portion W Strip plate-shaped conveyed object

Claims (2)

[Claims] 1. A clamp unit (1) for fixing a position of a transferred object (W) when the transferred object is stopped, and a transferred path of the transferred object.
The guide rods (3a, 3b) arranged below the (6) in parallel with the conveyed object feed path direction, and the feed unit (2) movably supported by the guide rods (3a, 3b). An intermittent feeding device comprising a driving means (4) for reciprocally moving the feeding unit (2) in the direction of the conveyed object feeding path, wherein both the clamp unit (1) and the feeding unit (2) are A base (7,15) located below the conveyed material feeding path (6) and a drive cylinder (8,16) arranged below the base (7,15)
And the lifting platform located above the transport path (6)
(9, 17) and piston rods (8a, 16a) of drive cylinders (8, 16) and elevators (9, 17), which are arranged on both the left and right sides of the object transport path (6), are linked and linked. A pair of left and right lifting rods (1
0a, 10b, 18a, 18b), the clamp unit (1) is provided with an object receiving part (35) on its base (7), and the lifting platform (9) has an object to be transferred. A holding part (36) for holding and fixing the transferred object (W) with the object receiving part (35) is provided, and the feed unit (2) is mounted on the lift table (17) of the transferred object (W).
Feed pins (38a, 38b) that can be fitted in the pin holes (40a, 40b) of
And a holding section (44) for holding and fixing the transferred object (W) between the transferred object receiving section (42) provided on the base (15). Consists of an intermittent feeding device. 2. A feed pin on the lift table (17) of the feed unit (2).
(38a, 38b) is an intermittent feeding device provided with a length capable of covering at least the reciprocating movement area of the feeding unit (2) and a base (15) and a lifting platform of the feeding unit (2). Equipped with a guided object guide (5) located in the middle of (17), the guided object guide table (5) is loosely fitted to the tip of the feed pins (38a, 38b) of the feed unit lift table (17). Groove (33a, 33a
The intermittent feeding device according to claim 1, comprising b).