JP3398792B2 - Attitude change device for conveyed goods - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to an apparatus for changing a posture of a conveyed object. [0004] In the case of wrapping a plastic film exterior in a small container (pillow-wrapping), a seal is required.
In order to obtain high speed, a method has been adopted in which the container is tilted and inserted in order to obtain high speed. [0003] However, in any of the methods, it is necessary to raise a container or a box in a later production process. In this case, the conventional method is performed manually or by using a bucket conveyor and a robot. Target and cause a decrease in productivity. [0004] Further, the production line is cut off by the erecting work, which hinders the production line. Further, devices such as robots are expensive and maintenance costs are high. SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is possible to efficiently change the posture of a conveyed product by rotating forward and backward, thereby realizing a production line and a production line. It is an object of the present invention to provide an apparatus for changing the posture of a conveyed product, which can reduce costs. [0006] As means for solving the above-mentioned problems, the present invention is directed to a first aspect of the present invention, in which a conveying direction is set between two parallel screws that can convey a conveyed object. the supporting portion of the conveyance object to be inclined downward toward provided, the 2
The screw is a screw with a right-handed groove
And a screw with a left-handed groove
The opposite sides of the screws are facing each other
Rotate to move, together with the lowering along the front end in the conveying direction of the conveyed object on the inclined surface of the support portion, the rear end of the conveyed object
Part is rubbed up with the groove surface of two screws and supported
While so as to change the conveyance posture by before rolling the conveyed object 2
The inclination angle of the groove surface of the screw is determined by
Provided is a device for changing the posture of a conveyed object, which is formed gradually closer to a right angle from the position of the forward rotation to the end position of the forward rotation . [0010] Embodiment 1 of the present invention, a device for changing the posture of a transported object according to Embodiment 1 of the present invention comprises the following members. <A> Screws Screws 1 and 2 are formed by forming spiral grooves 11 and 21 at a predetermined pitch on a rod made of synthetic resin or the like, as shown in FIGS. The screws 1 and 2 are juxtaposed so that the article 3 can be conveyed between the opposing grooves 11 and 21. In this case, one screw-1 provided with a right-handed groove 11 and the other screw-2 provided with a left-handed groove 21 are used. By rotating the opposite sides of the screws 1 and 2 so as to move upward,
The article 3 sandwiched between the grooves 11 and 21 is carried in the direction of the arrow in the figure. The shapes of the grooves 11 and 21 of the screws 1 and 2 are designed to be as small as possible in accordance with the size and shape of the object 3. Further, since the transported object 3 is rotated forward and its posture is changed, the screws 1, 2 and 3 can be held in accordance with the change of the posture.
Are formed by appropriately changing the shapes of the grooves 11 and 21 in each of the above-mentioned portions. Further, as shown in FIG.
The angle of the groove surface is changed in each part. Hereinafter, the groove 11 of the screw-1 will be described, but the groove 21 of the screw-2 has the same configuration. That is, the transported object 3 before the forward rotation
The groove surfaces 11a and 11b on both sides for holding the angle may be close to a right angle because it is only necessary to maintain a small clearance. A groove surface 11c at a position where the transported object 3 is rotated forward.
Is formed at a predetermined inclination angle so as to enter the lower end of the rear end of the conveyed article 3 in the conveying direction and to rub the lower end of the rear end to support it. As can be seen from a comparison between the groove surface 11c and the groove surface 11e, the inclination angle is formed by gradually increasing the inclination angle near a right angle from the front rotation start position to the front rotation end position. On the other hand, the groove surfaces 11d and 11f facing the groove surface 11c and the groove surface 11e are formed so that the front end of the conveyed object 3 in the conveying direction is easily lowered, that is, the front end of the conveyed object 3 in the conveying direction. Is formed near a right angle so as not to be caught, or at an acute angle than the right angle. Groove surfaces 1 on both sides for holding transported object 3 after forward rotation
1g and 11h may be close to a right angle, as long as the clearance can be kept small. <B> A support portion 4 which is inclined downward in the transport direction is provided at a forward rotation position of the transported object 3 between the support portion screws 1 and 2. For example, a pedestal having an inclined surface 41 on the upper surface is used as the support 4. The inclined surface 41 of the support portion 4 is formed of a material having a small frictional resistance so that the object 3 can be slid smoothly. The inclined surface 41 of the support 4 and the screws -1, 2
Is appropriately adjusted in accordance with the size and shape of the target transported object 3 so that the transported object 3 is rotated forward and the posture can be changed satisfactorily. <C> An upper conveyor 5 which is movable in the conveying direction is provided between the screws 1 and 2 on the upstream side 42 of the conveyor support 4. A lower conveyor 6 that is movable in the transport direction is provided between the screws 1 and 2 on the downstream side 43 of the support unit 4. The upper and lower conveyors 5 and 6 are arranged close to each other so that no step is formed between the ends of the conveyors 5 and 6 and the end of the support portion 4. These conveyors 5 and 6 support the bottom of the conveyed article 3 when the conveyed article 3 is conveyed before and after forward rotation. The conveyor speeds of the conveyors 5 and 6 are as follows.
Is set almost equal to the transfer speed, but the speed may be changed according to the transfer conditions. The positional relationship between the conveyors 5 and 6 and the screws 1 and 2 is appropriately adjusted according to the size and shape of the target transported object 3 so that the transported object 3 can be favorably transported before and after forward rotation. It is conceivable that an immovable floor member having low frictional resistance is laid instead of the conveyor. Further, instead of the pedestal-shaped member, a short inclined conveyor may be used for the support portion 4, or a continuous conveyor having an inclined portion continuous between the upper and lower stages may be used. Next, the operation of the first embodiment will be described with reference to FIG.
The operation of will be described. The screws 1 and 2 are rotated so that the opposing sides move upward with respect to each other, and the upper and lower conveyors 5 and 6 are driven so that the transported object 3 is screwed.
Send between 1 and 2. When the conveyed article 3 conveyed on the upper conveyor 5 reaches the upstream side 42 of the support section 4, the front end in the conveying direction starts to descend along the inclined surface 41, and at the same time, The ends are gradually rubbed by the groove surfaces of the grooves 11 and 21 of the screws 1 and 2. Then, the transported object 3 is moved to the downstream side 43
When passing through, the posture change by forward rotation is almost finished,
The conveyance is performed on the lower conveyor 6 in a state where the pre-rotation has been completed. Second Embodiment Next, a second embodiment of the present invention will be described. The apparatus for changing the posture of a transported object according to the second embodiment includes the following members. <A> Screws Screws 7 and 8 are formed by forming spiral grooves 71 and 81 at a predetermined pitch in a rod of synthetic resin or the like, as shown in FIGS. These screws 7 and 8 are arranged side by side so that the article 3 can be conveyed between the opposing grooves 71 and 81. In this case, one screw 7 provided with a left-handed groove 71 and the other screw 8 provided with a right-handed groove 81 are used. Then, by rotating the opposite sides of the screws 7 and 8 so as to move downward,
The transported object 3 sandwiched between the grooves 71 and 81 is transported in the direction of the arrow in the figure. The shapes of the grooves 71 and 81 of the screws 7 and 8 are such that the clearance can be kept as small as possible in accordance with the size and shape of the object 3. Also, since the transported object 3 rotates backward and changes its posture, the screws 7 and 8 are held so that they can be held in accordance with the change in the posture.
Are formed by appropriately changing the shapes of the grooves 71 and 81 at the respective portions. Further, as shown in FIG.
The angle of the groove surface is changed in each part. Hereinafter, the groove 71 of the screw 7 will be described, but the groove 81 of the screw 8 is similarly configured. That is, the transported object 3 before the backward rotation
The groove surfaces 71a and 71b on both sides for holding the gap may be close to a right angle because it is sufficient to keep the clearance small. A groove surface 71d at a position where the transported object 3 is rotated backward.
Is formed at a predetermined inclination angle so as to enter the lower front end of the transported object 3 in the transport direction and support the lower front end. As can be seen from a comparison between the groove surface 71d and the groove surface 71f, the inclination angle is formed by gradually increasing the inclination angle from a rearward rotation start position to a rearward rotation end position so as to be close to a right angle. On the other hand, the groove surface 71d and the groove surface 71c and the groove surface 71e opposed to the groove surface 71f are formed so that the rear end of the conveyed object 3 in the conveying direction is easy to descend, that is, after the conveyed object 3 is conveyed. The edge is formed at a right angle so as not to be caught, or at an acute angle than the right angle. The groove surfaces 7 on both sides for holding the post-rolled article 3
1g and 71h may be close to a right angle because it is sufficient to maintain a small clearance. <B> The support section, the conveyor support section 4 and the conveyors 5 and 6 are configured in the same manner as in the first embodiment. The inclined surface 41 of the support portion 4, the screw 7,
8. The positional relationship between the conveyors 5 and 6 is appropriately adjusted in accordance with the size and shape of the target transported object 3 so that the transported object 3 can be rotated backward and the posture can be changed favorably. The conveyor speed of the conveyors 5 and 6 is controlled by a screw.
The transport speed is set substantially equal to the transport speeds 7 and 8, but the speed may be changed according to the transport conditions. It should be noted that the conveyor speed on the side of the conveyor 6 is slightly higher than the conveyor speed of the screws 7 and 8, and at the end of the backward rotation, the lower part of the conveyed material 3 that is slightly inclined forward is pulled up to completely stand up. Good. Next, the operation of the second embodiment will be described with reference to FIG.
The operation of will be described. The screws 7 and 8 are rotated so that the opposing sides move downward with respect to each other, and the upper and lower conveyors 5 and 6 are driven so that the transported object 3 is screwed.
Send between 7 and 8. When the conveyed article 3 conveyed on the upper conveyor 5 reaches the upstream side 42 of the support section 4, the rear end in the conveying direction drops and starts to descend along the inclined surface 41. , The front end in the conveying direction is the groove 71, 8 of the screw 7, 8.
Since the transported object 3 is supported by the groove surface 1, the transported object 3 is gradually raised. At this time, the forward end of the transported object 3 in the transport direction is rubbed downward by the groove surface, but does not descend because it is supported by the inclined shape of the groove surface. Then, the transported object 3 is moved to the downstream side 43
When passing through, the posture change by backward rotation is almost finished,
The conveyance is performed on the lower conveyor 6 in a state where the post-rolling is completed. Since the present invention is configured as described above, the following effects can be obtained. It is possible to change the posture by front rolling of continuously and rapidly conveyed with <b> screw. Therefore, the posture changing operation can be performed efficiently, and the productivity can be improved. <B> Further, since it can be incorporated in a part of the production line, a total production line can be realized, and the productivity is further improved. <C> Further, since the structure of the apparatus is simple, the cost of the apparatus itself and the maintenance can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram of a configuration of a posture changing device for a front-rotation type transport object according to a first embodiment; FIG. FIG. 3 is an explanatory diagram of the operation of the posture changing device for the front-rotation type transported object according to the first embodiment. FIG. 4 is an explanatory diagram of the configuration of the posture changing device for the rear-rotational type transported object according to the second embodiment. FIG. 5 is an explanatory view of a configuration of an apparatus for changing the posture of a backward-rotating conveyed product according to the second embodiment;

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65G 47/22-47/32 B65G 33/02-33/06 B65G 33/26

Claims (1)

(57) between the Patent Claims 1. A two screws arranged side by side can be conveyed across the conveyance thereof, is provided a support portion of the conveyance object to be inclined downward toward the conveyance direction, wherein The two screws are screws with a right-handed groove.
And a screw with a left-handed groove
With the opposite sides of those screws facing each other
And the front end of the conveyed object in the conveying direction is lowered along the inclined surface of the support, and the rear end of the conveyed object is screwed with two screws .
By pre-rolling the conveyed object while supporting raised rubbed by the groove surfaces of the groove surface of the two screws to change the conveying posture
Move the inclination angle from the forward rotation start position to the forward rotation end position of the load.
This is a device for changing the attitude of a conveyed object, which is formed gradually closer to a right angle .