JPH0522501Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention allows products such as sanitary napkins or disposable diapers, which are folded or individually wrapped, to be packed into a large bag or a large box at once in a predetermined number. The present invention relates to a device for supplying liquids at high speed.

(Prior Art) Japanese Patent Laid-Open No. 58-74417 is a device that collects processed and transported products into a group of products consisting of a predetermined number during the process from the processing process to the packing of these products into boxes or bags. A ``product constant supply device'' has been devised in the official gazette.

This device consists of a pair of belt conveyors arranged at an interval narrower than the width of the products, a product pushing device that comes out and retracts from the product insertion port side of the belt conveyor, and a product disposed near the insertion port so that the product can be detected. When a product is detected by the detector, the product pushing device pushes the product onto the belt conveyor and transfers the product already held on the belt conveyor to the opposite side of the insertion slot. The belt conveyor is driven in the direction of When this operation is repeated and a predetermined number of products are clamped by the belt conveyor, the clamped products are rapidly transferred a predetermined distance to the side opposite to the insertion opening.

In this way, the drive mechanism that drives the belt conveyor one product at a time (frame feed mechanism) and the drive mechanism that transports the belt conveyor at high speed (high speed drive mechanism) use one drive motor, and the frame feed mechanism and high speed mechanism This was done using a clutch compatible with the

(Problems to be Solved by the Invention) As described above, in the conventional constant supply device, one drive motor is used for both the frame feeding mechanism and the high-speed mechanism, so there are the following problems to be solved.

In other words, when the drive motor is used in combination, the frame feed speed and the high-speed transport speed cannot be adjusted separately, so it becomes difficult to time the frame feed and high-speed transport according to the number of products to be packed, for example, when packing five products in one batch and packing ten products in one batch. As a result, it becomes difficult to time the operation speed of the product processing side and the operation speed of this device, which causes a problem in terms of productivity that needs to be improved.

To give you a concrete example of this in real life, the processing process has a production capacity of approximately 500 products per minute, and in order to pack 10 products into bags, the operating capacity of the constant supply device is increased to 500 products per minute. There is a device that is designed to bundle the products produced in the processing process into bags of 10 pieces each, and then packs all the products that are brought into the bag in fixed quantities.

Therefore, if you use this device to bag 5 products in a bundle, 250 products/min (5 products x 50 products)
A situation arises in which the product production volume on the processing side has to be reduced by half. As described above, a problem has arisen in that the production capacity of the processing process is limited by the number of products that are bundled and packed into bags.

In view of the above problems, an object of the present invention is to provide a device for rapidly feeding products corresponding to the number of products to be packed into a large bag or large box.

(Means for Solving the Problems) The present invention, as a means for solving the above problems, has one end of a pressing member pivoted to a rotatable support arm, and the middle part of the pressing member is rotated. A rotary pusher device that is pivoted to the outer periphery of a member, a pair of belt conveyors extending oppositely in the operating direction of the rotary pusher device with an interval narrower than the width of the product, and the products of the belt conveyor. a reciprocating pusher device having a plurality of pressing members arranged in parallel in the extending direction of the belt conveyor, each of which operates in the direction of penetrating the clamping space of the belt conveyor, and a clutch mechanism provided on the driving main shaft of the belt conveyor. This is characterized in that a rapid-forwarding mechanism is connected to the drive shaft, and a frame-by-frame forwarding mechanism equipped with a continuously variable transmission is arranged in parallel to the main drive shaft via a cam clutch.

(Function) Since the present invention is constructed as described above, the extrusion speed of the product by the rotary pusher device is achieved by adjusting the rotation speed of the support arm, and the frame feed speed of the belt conveyor is adjusted by adjusting the frame feed speed of the belt conveyor. It is possible to freely change the speed by adjusting the continuously variable transmission, and the high-speed transfer speed of the belt conveyor can be freely changed by a fast-feeding mechanism provided on the main drive shaft of the belt conveyor. Since the fast-forwarding mechanism is provided with a clutch mechanism, it is possible to drive the frame-by-frame forwarding mechanism and the fast-forwarding mechanism separately. In this way, the extrusion speed of the product is adjusted by the rotary pusher device, the frame feed speed of the belt conveyor is adjusted by the frame feed mechanism, the high speed transfer speed of the belt conveyor is adjusted by the rapid feed mechanism, and the frame feed mechanism and the rapid feed mechanism are separated. By driving with
It becomes possible to send the products to the belt conveyor in accordance with the operating speed of the product processing process in accordance with the number of products to be packed in bags. The products sent out in this manner are pushed out by a plurality of reciprocating and double-acting pusher devices and packed into bags.

(Example) Hereinafter, an example of the present invention will be described using the drawings.

Products 1, such as sanitary napkins and paper diapers, which have been processed in the processing step and folded one by one or individually packaged, are successively transported one by one by the conveying device 2 from the processing step.

This conveying device 2 is configured to sandwich a product 1 carried in horizontally from above and below by a first belt conveyor 3 and a second belt conveyor 4, change the product 1 to a vertical orientation, and guide it onto a product placement table 5. To explain its structure, the first belt conveyor 3 has rotatable rollers 6, 6... and a drive roller 8 that rotates the belt 7 at predetermined positions, and bends the belt 7 from the horizontal direction to the vertical direction. The second belt conveyor 4 wraps the belt 10 around freely rotatable rollers 9, 9... and a drive roller 11 that rotates the belt 10 by bending the belt 7 of the first belt conveyor 3. They are provided so that they come into contact at certain positions.

A phototube 12 for detecting the delivered product 1 is provided near the transport end of the transport device 2.

As shown in FIG. 2, the product mounting table 5 is provided with an arrangement conveyance device 15 in which a pair of belt conveyors 13 are arranged with their respective belts 14 facing each other at intervals such that the product 1 can be held between the belts 14. ing. Further, a rotary pusher device 16 for pushing the product 1 between the belts 14, 14 is provided on the product insertion opening side of the array conveyance device 15. The lower end is pivoted to a rotatable arm 18, the middle part is pivoted to the periphery of a rotatable disk-shaped rotating member 19, and the pin portion 17a at the tip is as shown in FIG. It is made to protrude upward from a long hole 17b provided in the product mounting table 5.

Further, above the array conveyance device 15, two reciprocating pusher devices 20 are provided in parallel in the operating direction of the belt conveyor 13 for pushing the products 1 sandwiched between the belts 14, 14 downward. There is. This reciprocating pusher device 20 consists of a cylinder device 21, and a pressing member 21a at the tip thereof is inserted between the belts 14, 14. still,
22b is a guide rod that guides the pressing member 21a to ensure vertical movement.
Further, the reciprocating pusher device 20 is provided so as to be movable in the same direction as the operating direction of the belt conveyor 13 by engaging with a guide rod and a guide rail (not shown).

Next, the drive device of the array conveyance device 15 will be explained using FIG. 3.

This drive device consists of a fast forwarding mechanism 22 and a frame forwarding mechanism 23. The fast forwarding mechanism 22 connects an output shaft 24a of a motor 24 and a driving main shaft 25 of a belt conveyor 13 with gears, and a clutch 26 is connected to this driving main shaft 25. A brake 27 is provided so that the rotational force from the output shaft 24a can be interrupted or interrupted based on instructions from the outside. In addition, the frame feed mechanism connects the output shaft 29a of the motor 29 connected to the continuously variable transmission 28 to a support shaft 32 to which a clutch 30 and a reduction gear 31 are connected by a timing belt 33. The support shaft 32 is connected to a cam clutch 34 provided on the drive main shaft 25 via a belt 35. And motor 2
The rotational force of 9 is decelerated and transmitted to the drive main shaft 25, and this rotational force can be interrupted by actuating the clutch 30 in response to an instruction from the outside. The rotation speed of this motor 29 can be easily changed by a switch 28a of the continuously variable transmission 28.

The drive main shaft 25 and the roller shaft of the belt conveyor 13 are connected by appropriate means (for example, a combination of bevel gears) to transmit the rotation of the drive main shaft 25 to the belt conveyor 13.

The operation of this embodiment configured as above will be explained next. First, the conveyance speeds of the first belt conveyor 3 and the second belt conveyor 4 are controlled by adjusting the rotational speeds of the drive rollers 8 and 11 in accordance with the operating speed of the product processing process, respectively. Further, by adjusting the continuously variable transmission 28, the frame feed speed of the belt conveyor 13 can be matched to the operating speed of the product processing process in accordance with the number of products to be packed into bags. Also, belt conveyor 1
The high speed transfer speed No. 3 is adjusted by controlling the rotational speed of the motor 24 so that the high speed transfer is completed before the next frame feed of the belt conveyor 13 is started. Further, the pushing speed of the product 1 by the pressing member 17 is adjusted to the operating speed of the product processing process by the rotational speed of the arm 18. The number of reciprocating pusher devices 20 is provided in accordance with the operating speed of the product processing process. In this way, all parts are adjusted to coincide in time with the operating speed of the product processing process. In this state, the product 1 that has been carried in sideways by the first belt conveyor 3 of the conveying device is moved from above and below by the first belt conveyor 3 and the second belt conveyor 4 at the bending part of the first belt conveyor 3. The product is held, turned vertically, and sent onto the product mounting table 5. The products sent in this way are detected by the phototube 12 on the way, and the detection signals are counted by first to third counters (not shown). While the first counter is counting a predetermined value, the clutch 30 of the frame feed mechanism 23 is connected, and the belt conveyor 13 is moved intermittently, while the arm 18 is rotated by a signal from the phototube 12. The product 1 is then pushed out between the belt conveyors 13 by the pressing member 17. When a predetermined number of products 1 are clamped on the belt conveyor 13, the clutch 30 is disengaged, and at the same time a signal is output from the second counter, the clutch 26 of the fast-forwarding mechanism 22 is connected, and the belt conveyor 13 is fast-forwarded by a distance La. As a result, the product 1 held by the belt conveyor 13 is located directly below the reciprocating pusher device 20. Since the above-mentioned fast forward operation is performed while the belt conveyor 13 moves to the next frame forward operation, the arm 18 may be continuously rotated. Subsequently, the products are counted by the first counter, and the clutch 30 of the frame feed mechanism 23 is connected to move the belt conveyor 13 intermittently, while the photocell 12
The arm 18 rotates in response to a signal from the press member 17, and the product 1 is pushed out between the belt conveyors 13 by the pressing member 17. In this way, the products are continuously pushed onto the belt conveyor 13. Next, when the number of products reaches a predetermined number (in the embodiment, there are two reciprocating pusher devices 20, this number is equal to two), a signal is output from the third counter to the rapid feed mechanism 22, and the belt is moved by a distance Lb. The conveyor 13 is moved. As a result, the product 1 is positioned directly below the two reciprocating pusher devices, and the reciprocating pusher device 20 is operated to push the product 1 downward and pack the product 1 into a bag (not shown). The products 1 carried in from the first belt conveyor 3 in this way are pushed into the belt conveyor 13, which is intermittently moving at a frame feed speed corresponding to the number of products to be packed, by a pressing member whose speed is adjusted. The product is pushed out by a predetermined number at step 17, and then the rapid feed of the belt conveyor 13 is completed before the next frame feed of the belt conveyor 13 is performed. In the series of processes in which the product is pushed downward by the dynamic pusher device 20, the processing time corresponding to the number of products to be packed in bags coincides with the operating speed of the product processing process, so that the processed products are not processed. are continuously bagged.

(Effects of the Invention) As described in detail above, according to the invention, the frame feed speed of the belt conveyor can be adjusted in accordance with the number of products to be packed by the continuously variable transmission provided in the frame feed mechanism, and the fast-forward mechanism can complete high-speed transport of the belt conveyor during the frame feed. In addition, the rotational speed of the rotary pusher device can be adjusted to match the frame feed speed of the belt conveyor and the product push-out speed to the operating speed of the product processing process. Furthermore, by providing multiple reciprocating pusher devices, the operating speed of the product processing process can be matched with the time of the product packing process in accordance with the number of products to be packed, thereby improving productivity.

[Brief explanation of the drawing]

1 is a front view of an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line -- in FIG. 13... Belt conveyor, 16... Rotary pusher device, 20... Reciprocating pusher device, 21
a... Pressing member, 22... Rapid forwarding mechanism, 23...
Frame advance mechanism.

Claims (1)

[Scope of utility model registration request] A rotary pusher device in which one end of a pushing member is pivoted to a rotatable support arm, and an intermediate portion of the pushing member is pivoted to an outer peripheral portion of a rotating member; A pair of belt conveyors extending facing each other with an interval narrower than the width of the product, and a plurality of pressing members that operate in a direction to penetrate the product clamping space of the belt conveyor are arranged in parallel in the extending direction of the belt conveyor. A reciprocating pusher device comprising a reciprocating pusher device, a rapid feed mechanism equipped with a clutch is connected to the drive shaft of the belt conveyor, and a frame feed mechanism equipped with a continuously variable transmission is installed in parallel to the drive shaft via a cam clutch. A high-speed feeding device for bagged products, which is characterized by: