JPS6233122B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for conveying a sheet material feed to a machine for subsequent use. More particularly, the present invention relates to a continuous belt for feeding preformed or punched cardboard or the like (hereinafter referred to as preform material) to a subsequent intermediate machine, such as an intermediate machine for packaging cigarettes into packaging boxes with opening and closing lids. Concerning transportation equipment.

Italian Patent No. 992092 filed by the applicant
A packaging machine of the above-mentioned type, as described in the above specification, can be coupled with a feeding and storage device, in which case the preform material is continuously fed into a vertical container, the lower part of which is connected to the entrance of the first conveyor. It is located above the position and its outlet position is connected to the inlet position of a second conveyor forming an inlet member of the packaging machine and forming an angle of 90 DEG to the first conveyor.

The conveying device for feeding the intermediate packaging machine, which consists of two conveyors forming an angle of 90 degrees and transferring the preformed material from the first conveyor to the second conveyor, is associated with many technical problems. In other words, 1 preform material
When transferring from one conveyor to another, it is necessary to transfer at very precise speeds and with very limited positional tolerances. In order to meet these conditions, the preform material and the transfer member arranged to transfer it from the first conveyor to the second conveyor must always fully engage, and the preform material enters the second conveyor. The position must also be perfect. If the conveying device is configured to meet these conditions, no problems will generally arise if the frequency of operation is relatively low. However, the situation changes when the operating frequency exceeds a certain predetermined value, and the desired frequency is very high, making it virtually difficult to feed intermediate packaging machines operating at a frequency of, for example, 7 per second or more.

Not only does the inertial force acting on the preform material at such speeds prevent it from being supported and guided in a constant manner during its transfer from one conveyor to another, but the moving parts involved in this movement are It must have a small number and simple structure, be easily operated synchronously, and not require a complicated control device. However, these significantly reduce the reliability of the conveying device.

The present invention solves the above technical problems,
The conveying device consists of two conveyors located at an angle of approximately 90° between the machine and the preform material storage warehouse, each conveyor having a supporting sliding surface for the preforming material and a supporting sliding surface for the preforming material. an exit position of one conveyor is connected to an entrance position of a second conveyor by a transfer device, and the transfer device transfers the preformed material from the first conveyor to the second conveyor; In the conveying device, the supporting sliding surface of the second conveyor is located at a higher level than the supporting sliding surface of the first conveyor, and the transfer device is arranged to pass through the supporting sliding surface at the exit position of the first conveyor. a lifting device that reciprocates to raise the preformed materials one by one to the level of the support sliding surface of the second conveyor; and a movable support device that is provided above the exit position and supports each preformed material in its raised position. , a conveying device for a sheet material feed consisting of a reciprocating extrusion device that laterally engages each preform material in a raised position above the exit location and pushes it toward the entry location.

Other features and advantages of the invention will become apparent from the following description with reference to the accompanying drawings. Note that the drawings are for explaining embodiments of the present invention, and are not intended to limit the present invention.

In Figure 1, the conveying device forms an included angle of 90°2.
It consists of two conveyors 1 and 2, and feeds the preforming material 3 to an intermediate machine (not shown) to package the tobacco into a packaging box with an openable lid. The conveyor 1 is supported in a substantially horizontal position by a base 4 and extends between an inlet position 5 and an outlet position, at which point it transfers the preformed material 3 to the second conveyor 2. A folding device 7 is provided along the conveyor 1 for folding a flap forming one of the ends of the preform material 3.

The conveyor 1 has a longitudinal support and guide member 8 . The longitudinal support guide member 8 is provided in a substantially horizontal position on the base 4, and has two blocks 9 (only one shown in FIG. 1) at both ends thereof, which extend horizontally and intersect with the axis of the longitudinal member 8. It supports two shafts 10 and 11 provided at the same location. Two toothed wheels 12 are rotatably mounted on both ends of the shaft 10, and two endless belts 14, 15 extending parallel to the axis of the longitudinal member 8 are supported by corresponding toothed wheels 13 each keyed to the shaft 11. and engage.

Two flat plates 16, 17 extend along the longitudinal member 8, are connected thereto and project laterally oppositely therefrom. A longitudinal central beam 18 is connected to the longitudinal member 8 and has a plane that is flush with the upper flat plates of the flat plates 16 and 17, and forms a supporting sliding surface for the preformed material together with the upper flat plate surfaces of the flat plates 16 and 17. do. Preforming material 3
is fed and transported to each transport section. The conveying compartment extends across the beam 18 and has guide shoes 2 at both ends thereof.
It is formed by two restraint rods 19 connected to bells 14 and 15 by 0. Each shoe 20 has a beam 18
It has a lateral flat surface that contacts the flat surface of the beam 18 and a lateral protrusion that is slidable in the longitudinal groove 21 of the beam 18.

The lateral position of the preformed material within each conveyance compartment 1 is controlled on one side by a guide rib or shoulder 22 mounted on the top surface of plate 16 and on the other side by a guide rib or shoulder 23 mounted on the top surface of plate 17. do. The guide shoulder 22 is the plate 1
6 in the longitudinal direction. On the other hand, the guide shoulder 23 is at least partially obstructed in positions 5, 6, 7 and does not extend. In particular, in position 5, the shoulder 23 is replaced by a control gate 24 rotatably supported on a pin 25 carried on the plate 17.

In order to prevent the preform material 3 from moving away from the plates 16, 17, 18 in the vertical direction, the brackets 2
6 is connected to shoulder 23 and projects above plate 17 and supports a vertical guide member 27 extending above the portion of conveyor 1 between positions 5 and 7. As shown in FIG. 2, a lateral drive keyed bevel gear 29 is moved from a drive device (not shown) in the base 4 and engages a bevel gear 30 keyed to the end of the shaft 31. Axis 2
8 will be provided. The shaft 31 extends longitudinally along the base 4 and serves as a drive source for an operation control device (not shown) provided at the entrance position. The shaft 28 comprises a keyed toothed wheel 32 and the belts 14,1 as described below.
The movement is transmitted to the stepwise drive unit 5. gear wheel 32
rotates a step feeder 34 of known type via a toothed wheel 33 having an axis parallel to shaft 28. The feeding device 34 has an idler wheel and a fan shape, and drives the marten cloth 35 intermittently or stepwise. The marten cloth is attached to one end of a shaft 36 parallel to shaft 28. A gear wheel 37 is keyed to the other end of the shaft 36,
The intermittent rotation is transmitted to the shaft 11 and further to the gear wheel 13 via the gear wheel 38. The toothed wheel 32 also rotates a toothed wheel 39 attached to one end of a shaft 40 parallel to the shaft 28. The other end of the shaft 40 is protruded from the base 4 and a hand wheel 41 is fixed thereon, so that the operation control device shown in FIG. 2 can be manually adjusted. Drive shaft 29 with belt 1
4, 15 and the exit position are driven to transfer the preformed material from the conveyor 1 to the conveyor 2. The conveyor 2 (see FIG. 1) extends into a box-like housing and defines an entry position by means of two horizontal superimposed shafts 42.
The shafts 42 each connect a toothed wheel 43 and form a feed drum 44 that contacts each other in the radial direction.
Two pairs of vertical members 45, 46 extend between the shafts 42 and form a sliding groove for the preform material 3 therebetween. The lower members of these pairs extend above the shoulder 22 and form a supporting sliding surface along the conveyor 2 of preform material. This supporting sliding surface is provided at a higher level than the supporting sliding surface of the preformed material 3 along the conveyor 1. The upper member extends into the exit location 6 above the plate 16 and beam 18.

The transfer device consists of a lifting device 47 (FIG. 2), a support device 48 and a pushing device. The lifting device 47 raises the preform material 3 relative to the upper members 45, 46 once the preform material 3 has stopped at the exit position.
The support device 46 holds the preform material 3 in a raised position and forms a lateral entry guide for the conveyor 2. The extrusion device 49 operates in conjunction with the preformed material 3 in the raised position and extrudes it into the groove between the feeding drums 44 formed by the pair of members 45 and 46. The lifting device 47 consists of vertical tubular rods 50, 52, the upper part of which is connected to a tubular connector 51 which passes through a hole formed in plate 16, and the vertical tubular rod 52 which passes through a hole formed in plate 17. . The vertical tubular rod 50 is also provided with a horizontal plate 53 having holes at the top, and the vertical tubular rod 52 is connected to an intake air distributor (not shown) via a duct (not shown). The intake air distributor is controlled by an eccentric pin 86 attached to one end of shaft 28. The tubular connector 51 passes through a hole formed in the beam 18 and terminates at the top in a suction tube 54 flush with the top surface of the plate 53.

A vertical plate 55 provided parallel to the feeding direction of the conveyor 1 is connected to the upper end of the tubular rod 52. The vertical plate 55 consists of three equally spaced upper teeth 56, with teeth 5
6 has a hole in its middle tooth. The free ends of the teeth 56 are flat and flush with the plate 53 and together form a lifting surface for the flat preform 3. Tubular rods 50 and 52 extend upwardly from transverse axis 57. The shaft 57 is rotatably connected to the large diameter end of the connecting rod 58, and the small diameter portion of the connecting rod 58 is pivotally connected to the crank 59. The crank 59 is keyed to the transverse shaft 60, and the shaft 60
rotatably supported on the base 4 and the second crank 6
1 is provided to support a cam follower roller 62 that engages with a groove 63 of a disc cam 64 keyed to the shaft 28.

The support device 48 has two jaws 65 having an L-shaped cross section,
66, with jaws 65, 66 arranged opposite each other at position 6 above plates 16, 17 and beam 18 and connected to horizontal transverse axes 67, 68, respectively. Shafts 67 and 68 are rotatably supported on the base 4. axis 6
Two toothed sector shapes 69, 70 are provided at one end of the teeth 7, 68. The sectors 69 and 70 mesh with each other and the sector 6
9 includes an eccentric pin that pivotally supports the connecting rod 72. The large-diameter end of the connecting rod 72 is configured as a fork 73 having a right-angled recess in the axial direction, and a shoe 74 engages with the recess. The shoe 74 is loosely fitted by a connecting rotating shaft 28, and a cam disk 75 is further keyed to the shaft 28. The idler wheel 77 carried by the connecting rod 72 is inserted into the groove of the cam 75.

The extrusion device 49 consists of a horizontal transverse rod 78 which is axially slidable and approximately coincides with the longitudinal axis of the conveyor 2. A comb-like plate 79 is connected to the rod 78 so as to face the conveyor 2 in the normal direction. The comb-like plate 79 consists of two lower teeth 80, which are configured to pass between the teeth 56. The other end of the rod 78 is connected to one end of a rocker arm 82 by a connecting rod 81. The rocker arm 82 is pivoted in a horizontal axis perpendicular to the rod 78, and a cam follower roller 83 is provided at the end of the shaft 2.
8 is engaged with a groove 84 formed on the circumferential surface of a cylindrical cam 85 keyed to the cylindrical cam 85.

The transfer of the preformed material from the conveyor 1 to the conveyor 2 will be explained with reference to the operation diagram shown in FIG.
These diagrams show one operating cycle of the conveyor 1, when the idler wheel of the feeder 34 engages the marten cloth 35 and rotates it, i.e. when the belts 14, 15 start their forward stroke and the The molding material 3 is transferred onto the plate 53 at the exit position 6 through the suction tube 54 and the teeth 5.
Starts when brought by 6. However, for simplicity, the above-mentioned operation is performed with belt 14 and
5 brings the preform material 3 to the exit location 6 and then stops. At the point when the belts 14 and 15 stop, the plate 53 and the suction pipe 5
4 and the plate 55 are stopped at the level of the support sliding surface of the conveyor 1 below the preformed material 3. The preform material 3 is held by the plates 53, 53 and the suction tube 54, since they are already in communication with the suction source (not shown) via the distributor by means of the control eccentric cam 86. At the same time, the comb plate 79 is at its take-out stop position, that is, the position furthest from the entrance position of the conveyor 2, while the jaw 6
5 and 66 are closed positions above position 6.

After the above-mentioned point, the shaft continues to rotate and the tubular rods 50, 52 are raised by the cam 64, causing the plates 53,
The preformed material 3 above the suction pipe 54 and plate 55 is lifted upward. At the same time, the rotation of the cam 75 synchronously rotated by the shaft 28 causes the connecting rod 72 to move downward, correspondingly opening the jaws 65, 66 and moving the preformed material 3 lifted by the lifting device 47 upward. Continuing their upward movement, the rods 50, 52 bring the preform material 3 between the jaws 65, 66 into contact with the abutment surfaces formed by the two pairs of upper members 45, 46 of the conveyor 2. At the same time, the distributor breaks communication with the suction source and the connecting rod 72 is pushed upwardly by the cam 75 to close the jaws 65, 66 and retain the preform material 3 between them. When the rods 50, 52 are further lowered so that the preform material 3 is completely aligned with the conveyor 2, the jaws 65 are held flush with the supporting sliding surface formed by the lower pair of members 45, 46,
Release the preform material from 66. In this regard, the jaws 65, 66 not only precisely position the preform material 3 for introduction into the conveyor 2, but also allow the rods 50, 52 to move immediately downwards to the plate below the supporting sliding surface of the conveyor 1. 53, suction tube 54 and plate 5
It should be noted that it is necessary to prevent 5 from interfering with the next conveying section which is delivered to position 6 by the next forward movement of the conveyor 1.

When the preform material 3 is released between the jaws 65 and 66, the comb plate 79, which has been held in the ejection position by the cam 85, is advanced by the cam 85 towards the preform material 3. and extrudes it between the feed drums 44 of the conveyor 2. The comb plate 79 partially extends above the preform plate 3 and partially extends above the preform plate 3.
Since it is provided at a level extending downwardly, it can positively engage with the side surface of the preformed plate 3 facing it.

The positive engagement of the plate 79 with the preformed material 3 is one of the main features of the above-mentioned conveying device, and for this reason the supporting sliding surfaces of the conveyors 1 and 2 are provided at different levels, and this Lifting device 4 with features
It should be noted that 7 and a support device 48 are required.

It should also be noted that the lifting teeth 56 and push teeth 8 are necessary to ensure that the vertical plates 55 and 79 do not interfere with each other during the actuation stroke of the rod 78. This is because, due to the high frequency of operation of the conveyor 1, the plate 79 has to move forward as soon as the plate 55 releases the preform material 3 in the jaws 65, 66. The return of plate 79 to its ejection position approximately coincides with the new preform material 5 coming to rest on position 5 and the beginning of a new operating cycle similar to that described above.

As described above, according to the present invention, preformed materials are delivered from one conveyor to another conveyor at high speed,
Moreover, it is possible to accurately position the preformed material on another conveyor.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of 3/4 of the transfer device according to the present invention seen from above, and Fig. 2 is a schematic perspective view of a part of the device for operating and controlling the movable elements of the transfer device shown in Fig. 1. It has been made clear by cutting the parts and removing some parts. FIG. 3 is a time-series operation diagram for one operation cycle of the movable element shown in FIG. 2. 1... Conveyor, 2... Conveyor, 3... Preforming material, 4... Base, 16, 17... Flat plate, 1
8... Longitudinal center beam, 34... Feeding device, 47...
Lifting device, 48...Movable support device, 49...Extrusion device, 45, 46...Vertical guide member, 55...
... Vertical comb member, 51 ... Connector, 54 ... Suction tube, 65, 66 ... Jaw, 79 ... Comb-like plate.

Claims (1)

[Scope of Claims] 1. A conveying device for feeding sheet materials such as preformed or punched cardboard or similar materials to a machine for packing cigarettes into lidded packaging boxes. , the conveying device comprises two conveyors located at an angle of approximately 90° between the machine and the preform material storage warehouse, each conveyor supporting a sliding surface for supporting the preform material and supporting the preform material; a device for feeding the preformed material stepwise along the sliding surface, and an exit position of one conveyor is connected to an inlet position of a second conveyor by a transfer device, and the transfer device transfers the preformed material from the first conveyor. In the conveying device configured to transfer the second conveyor 2 to the second conveyor, the supporting sliding surface of the second conveyor 2 is located at a higher level than the supporting sliding surface of the first conveyor, and the transferring device a lifting device 47 that reciprocates to lift the preformed materials one by one up to the level of the support sliding surface of the second conveyor through the support sliding surface at the exit position; receiving the material in its raised position and retaining the preformed material in its raised position;
A movable support device 48 having a guide surface extending along the conveyor transport direction and engaging a side surface of each preform material.
and reciprocate through the movable support device 48 relative to the inlet position above the exit position and laterally engage each preform material in the raised position to move the preform material into the movable and a pushing device 49 for pushing along a support device 48 to the inlet position. 2 a guide member 4 extending upwardly along the supporting sliding surface to which the second conveyor 2 corresponds and controlling the vertical position of the preformed material moving along the supporting sliding surface;
5, 46, and the guide member has one end protruding above the exit position outside the second conveyor to form an abutting portion with the lifting device. Department of transportation equipment. 3. The lifting device 47 includes an upper flat surface, a lower stop position where the upper flat surface is substantially flush with the supporting sliding surface of the first conveyor, and the upper flat surface is approximately flush with the supporting sliding surface of the second conveyor. between the operating position at
at least one upper flat surface member 53, 54 supported by a coupling device 50, 51 having an axially movable vertical rod; It consists of a vertical comb member 55 having a large number of teeth, the upper part of which is formed by the same surface as the upper surface of the upper flat surface member; the comb member is connected to the upper flat surface members 53, 54, and these upper flat surface members 53 and 54 between the stop position and the operating position, and during the ascent;
Claim 1 or 2, wherein the preforming material and the upper flat surface members 53, 54 are in contact with each other.
A conveying device for a sheet-like material feeding section as described in 2. 4. The connecting devices 50, 51 are connected to the upper flat member 53,
5. A conveying device for a sheet material feeder according to claim 1, having at least one suction tube 54 opening in the plane of 54 and connected to an air suction device. 5. Said movable support device 48 lifts the two substantially L-shaped jaws 65, 66 to the lifting device 4 above said exit position.
7, where each jaw 65, 66 does not interfere with the ascending path of the preformed material around an axis parallel to the feeding direction of the second conveyor, and an operating position where the preformed material is supported in the ascending position. Any one of claims 1 to 4, which is rotatable between
A conveying device for a sheet-like material feeding section as described in 2. 6. The extrusion device 49 is parallel to the first comb member 55 and has a number of teeth facing downward, and the teeth are arranged in the first comb member 55.
It has a second comb member 79 that passes between the teeth when the comb member is in the operating position, and a part of the second comb member 79 is located below the supporting sliding surface of the second conveyor 2. A conveying device for a sheet-like material feeding section according to any one of claims 3 to 5, located in .