JPS6296215A - Intermittent driving type conveyor - Google Patents

Abstract

PURPOSE:To lighten and thin a whole conveyor to contrive to cut down the cost by providing, in a shifting member, a claw, which engages with a chain in shifting operation, in one direction, of a shifting member to shift the chain and also disengages from the chain in shifting operation in the other direction. CONSTITUTION:A chain 63 is wound round a sprocket wheel 61 which is provided as one united body with the driving roller 21 of a belt 30 and a sprocket wheel 62 whose shaft is rotatably supported by a supporting member. A claw member 70, which engages with one part of the chain 63 in shifting operation, in one direction, of a shifting member 50. When the shifting member 50 in shifted in the left direction by a piston rod connected to it the engage-locking pin 74 of the claw member 70 pushes a cutting plane 72b, so the chain 63 is shifted in the left direction by an engage-locking claw 72a. When the shifting member 50 shifts in the right direction, the claw member 70 is rotated in the direction where the engagement between the engage-locking claw 72a and the chain 63 is released while resisting the energizing force of a spring 73.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an intermittent drive type conveyor in which a belt is wound around two rollers supported at both ends of a support frame, and the belt is intermittently fed.

(Prior Art) In conventional intermittent drive conveyors, a belt wound around a roller is generally driven by a motor.

However, in such conventional conveyors,
Since a motor is attached to the conveyor as a driving source, the entire conveyor becomes heavy and thick. If an attempt was made to synchronize the motor and the motor, a complicated control circuit would be required to control the motor, resulting in an increase in manufacturing costs.

(Problems to be Solved by the Invention) The present invention has been made by focusing on these conventional problems. The object of the present invention is to provide an intermittent drive conveyor that can be synchronized extremely easily.

(Means for Solving the Problems) The gist of the present invention to achieve the above object is to provide an intermittent drive type in which a belt is wound around two rollers supported at both ends of a support frame, and the belt is fed intermittently. In the conveyor, a cylinder is attached to the support frame so that the piston rod reciprocates along the moving direction of the belt, a moving member capable of reciprocating along the moving direction of the belt is connected to the piston rod, A chain is wound around a sprocket wheel that is provided integrally with one of the two rollers and a sprocket wheel that is rotatably supported by a support member that is integral with the support frame, and the chain is wound around the moving member,
A claw member is provided that engages a part of the chain to move the chain when the movable member moves in one direction, and escapes from the chain when the movable member moves in the other direction. This is an intermittent drive type conveyor.

(Function) In the intermittent drive conveyor, when the movable member moves in one direction, the claw member engages with a part of the chain to move the chain, thereby causing the belt to move in one direction. When the movable member is moved in the other direction, the claw escapes from the chain, and the claw returns, leaving the chain behind.

(Example) Hereinafter, one embodiment of the present invention will be described based on the drawings.

1 to 6 show an embodiment of the present invention, and FIG. 3 is a longitudinal sectional view of FIG. 2.

As shown in FIGS. 1 and 2, the intermittent drive type conveyor 1 that conveys a belt intermittently has a belt 30 wound around two rollers 21 and 22 supported at both ends of a support frame 10, and a piston rod 41. The cylinder 40 is attached to the support frame 10 so that the cylinder 40 can reciprocate along the moving direction of the belt 30, and the moving member 50 that can reciprocate along the moving direction of the belt 30 is connected to the piston rod 41.
1 and a sprocket wheel 61 provided integrally with the sprocket wheel 61;
A chain 63 is wrapped around a sprocket wheel 62 that is rotatably supported by a support member 2 that is integrated with the support frame 10, and is attached to a moving member 50 when the moving member 50 is moved in one direction (belt movement in the feeding direction). time), the chain 6
3 to move the chain 63, and at the same time, when the movable member 50 moves in the other direction (during return operation in the opposite direction to feeding), the claw member 70 escapes from the chain 63. It is made up of

As shown in FIGS. 1 and 2, the support frame 1
0 includes a pair of support frames 11.12 having a U-shaped cross section and arranged parallel to each other, and a pivot portion 13.12 which is fixed to the left end of the support frames 11.12 and pivotally supports the roller 21.
14, and an adjustment pole at the right end of the support frame 11.12) 81.
It consists of pivot parts 15 and 16 which are connected via 82 so that the distance can be adjusted and pivotally support the roller 22.

As shown in FIGS. 2 and 3, the rotation @ h 21 a integral with the roller 21 is rotatably supported by the support frame 13.14, while the rotating shaft 22a integral with the roller 22 is rotatably supported by the support frame 13.14. 15.16] is rotatably supported.

As shown in FIGS. 1 to 3, an engaging portion 15a is formed at the left end of each pivot portion 15.16.

16a is slidably fitted into the engagement hole of the support frame 11.12. The adjustment bolt 81.82 is attached to the left end of the engaging portions 15a, 16a, and the nut 81a of the adjustment bolt 81.82.

Operation holes 15b and 16b are provided for inserting a wrench or the like for turning 82a from the outside. By inserting a wrench or the like into the operation holes 15b and 16b and rotating the oaks 81a and 82a of section yA section por) 81. The tension of the belt 30 can be adjusted by adjusting the distance between the pivot portion 16 and the support frame 12, respectively.

As shown in FIGS. 1 to 5, a thin plate 83 is fixed to the inner side of each end of the support frame 11 and 12 to prevent the belt 30 from sagging. The belt 30 is configured to pass through.

Further, three wooden stays 84, 85 and 86 are fixed to the lower ends of the support frames 11 and 12 to prevent the belt 30 from sagging.
A belt 30 is configured to pass over the upper surface of the belt.

As shown in FIGS. 1 to 3, one end 40a of the cylinder 40 is connected to a support member 4 fixed to the support frame 11.12.
2, the other end 40b is attached to a support member 43 fixed to the support frames II and 22, respectively.

The cylinder 40 is a single-acting air cylinder, and a tube 44 for supplying and extracting air from the cylinder 40 is routed inside the support frame 11, and the end of the tube 44 is connected to a connector 45. It is connected to the ventilation hole 46 via. This ventilation hole 46 penetrates through the end rod 13, and a connection JL 47 is provided at the end of the ventilation hole 46.

The connector 47 is connected to a tube 48 connected to an air control mechanism (not shown). When air is supplied from the air control mechanism to the cylinder 40 through the vent hole 46 and the tube 44, the piston port.

When the piston rod 41 moves leftward from the position shown in FIG. 2 to the protruding position and the air is removed by the air control mechanism at the protruding position, the piston rod 41 moves from the protruding position to the retracted position shown in the figure. It is configured to be retracted by the biasing force of a built-in spring member.

Further, a connecting member 49 is fastened to the piston rod 41.

As shown in FIGS. 1, 2rgJ and 5, the support member 2 includes a fixed plate 87 fixed to the support frame 11.12.
It consists of support plates 2a and 2b fixed to
A shaft portion 62a integral with the sprocket wheel 62 is rotatably supported by a and 2b.

As shown in FIGS. 1 to 6, the moving member 50 is
Consisting of two moving plates 51.52, the moving plates 51.52
One end is fixed to the connecting member 49, and the other end is connected to the port 5.
It is connected by 3.

The bases 51a and 52a of each movable plate 51.52 are the nationally designated plate 8.
It is slidably guided by guide members 53, 54 fixedly attached to 7. The vertical wall portions 51b and 52b bent from the base portions 51a and 52a each have a notch in the center so as not to come into contact with the sprocket wheel 62 and the like when reciprocating in conjunction with the piston rod 41. 51c, 52c
is formed.

As shown in FIG. 1, FIG. 4, and FIG. It consists of a ratchet member 72 and a spring member 73.

The ratchet member 72 is formed into a wheel shape, and a plurality of locking claws 72a that engage with the chain 63 are formed on a part of the outer periphery. A locking pin 74 that comes into contact with the cut surface 72b of the ratchet member 72 and locks the cut surface 72b is provided in a protruding manner on the vertical wall portion 51b. A spring member 73 is hooked to a spring pin 75 protruding from the ratchet member 72 and a locking pin 74, and the spring member 73 moves the ratchet member 72 in a direction in which its cut surface 72b abuts the locking pin 74. is energized by

As shown in FIGS. 4 and 6, the base portions 51a, 5
An auxiliary plate 8 is provided on the lower end surface of the chain 2a to prevent the chain 63 from slackening and coming off the sprocket wheel 62.
8 is fixed. A central portion 88a of the auxiliary plate 88 is recessed from its left and right ends, and a slight gap 88b is provided between the central portion 88a and the chain 63.

In the intermittent drive type conveyor 1 having the ball-marking configuration, when the piston rod 41 is retracted as shown in the figure, air is supplied from the air control mechanism (not shown) to the tube 489 and the ventilation hole 4.
6 and tube 44 to the cylinder 40, the piston rod 41 protrudes to the left in the figure against the spring member built into the cylinder 4°, and together with the piston rod 41, the moving plates 51, 52 Also the guide member 53.
54 to move leftward from the position shown in FIG.

When the movable plates 51 and 52 move leftward from the position shown in FIG.
The locking pin 74 presses the cut surface 72b of the ratchet member 72 while the engaging state is maintained by the biasing force of the spring member 73, so that the locking claw 7 of the ratchet member 72
2a moves the chain 63 to the left in the figure.

The leftward movement of the chain 63 causes the sprocket wheel 61 and roller 21 to rotate clockwise, thereby moving the chain 63 in the feeding direction.

When the air sent to the cylinder 40 by the air control mechanism is removed at the position where the chain 63 has been sent, the cylinder 40
The piston rod 4 is moved by the biasing force of the spring member built into the piston rod 4.
1 retreats from the protruding position.

In conjunction with the retraction of the piston rod 41, the moving plate 51.5
2 returns from the feeding position to the right in the figure, the ratchet member 72 is also moved to the right in the figure by being pulled by the shaft portion 71 which is integral with the moving plates 51 and 52. At this time, the ratchet member 72 can rotate and escape against the biasing force of the spring member 73 in the direction in which the locking pawl 72a and the chain 63 are engaged or disengaged, so that the chain 63 is stopped by its own load. While holding the ratchet member 72, the moving plate 51
．． 52 mag. returns to its original position.

In this way, the parts that have fallen onto the belt 33 are intermittently fed in fixed amounts.

(Effects of the Invention) According to the intermittent drive type conveyor according to the present invention, when the movable member is moved in one direction, the claw member engages with a part of the chain to move the chain, thereby causing the belt to move in one direction. direction, and when the moving member moves in the other direction,
The claw member escapes from the chain and returns, leaving the chain behind, so the belt can be fed intermittently and there is no need to use a drive source such as a motor, making the entire conveyor lighter and lighter. It is thinner and, furthermore, it is very easy to synchronize the intermittent feeding motion of the machine and the belt, reducing manufacturing costs.

[Brief explanation of drawings]

1 to 6 show one embodiment of the present invention, and the first embodiment is shown in FIG.
The figure is a partially cutaway perspective view, Figure 2 is a top view, Figure 3 is a vertical sectional view of Figure 2, and Figure 4 is an enlarged view of the left side of Figure 3. , FIG. 5 is a cross-sectional view taken along the line VV in FIG. 3, and FIG. 6 is a cross-sectional view taken along the line VT-VT in FIG. 1...Intermittent drive conveyor

Claims (1)

[Claims] In an intermittent drive conveyor in which a belt is wound around two rollers supported at both ends of a support frame and the belt is intermittently fed, the cylinder is supported so that the piston rod reciprocates along the moving direction of the belt. A movable member attached to the frame and capable of reciprocating along the moving direction of the belt is connected to the piston rod, a sprocket wheel integrally provided with one of the two rollers, and a support integral with the support frame. A chain is wound around a sprocket wheel rotatably supported by the member, and when the moving member is moved in one direction, the chain is engaged with a part of the chain to move the chain, and the moving member is moved. An intermittent drive type conveyor characterized in that a claw member is provided that escapes from the chain when a member is moved in the other direction.