JPS62146115A - Article feeder to cradle device for article not packaged in packaging machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Purpose of the invention (industrial application field) As shown in, for example, Japanese Unexamined Patent Application Publication No. 58-90010, the present invention is directed to a method of folding a packaging film stretched in a packaging section onto an article. This invention relates to an article feeding device for transferring unwrapped articles to an article receiving device that raises the unwrapped articles toward the packaging film of the packaging section in a fresh food packaging machine for packaging articles.

(Prior Art and Problems to be Solved by the Invention) Conventionally, this type of article feeding device was disclosed in
There are those described in JP-A No. 226 and JP-A-58-99324. In this product supply device, the products must be loaded one by one and transferred to the product receiving device, which causes a decrease in product supply efficiency.

Therefore, the present invention aims to improve the product supply efficiency by improving the product supply device so that a large number of products can be sequentially and sequentially placed on the product supply device at the same time.

Structure of the Invention (Means and Actions for Solving Problems) That is, the first invention is, as shown in the drawings of the embodiments to be described later, in which an unpackaged item W is directed onto an item holder device 22 that carries an unpackaged item W to a packaging section. a transport conveyor 2 that transports the same item W, and the transport conveyor 7)
The transport conveyor 2 is provided with a first sensor 27 that detects the article W on the conveyor 2, and a drive control means 44 that stops the drive device 7 that drives the transport conveyor 2 based on the detection signal of the first sensor 27.

Then, the article W on the conveyor 2 is transferred to the first sensor 27.
When detected, the transfer conveyor 2 stops as the driving device 7 stops, and the article W waits to be transferred to the article receiving device 22.

Further, as shown in the drawings of the embodiments to be described later, a second invention, in addition to the first invention, detects an article W moving on the conveyor 2 by inertia driving of the conveyor 2 whose drive is stopped. a second sensor 28 and this second sensor 28
The drive control means 44 operates the brake device 15 that applies a brake to the conveyor 2 based on the detection signal.

When the second sensor 27 detects the article W on the conveyor 2, the drive device 7 stops and the article W on the conveyor 2 is detected.
stops. At this time, when the second sensor 28 detects the article W as it moves further due to the inertia drive of the conveyor 2, the brake device 15 is activated to completely stop the conveyor 2, and the article W also receives the article. It completely stops and waits for transfer to the stand device 22.

(Example) Hereinafter, a first example of the present invention will be described with reference to FIGS. 1 to 4.

The product supply device 1 extends inside and outside the packaging machine body 5, and includes an outer conveyor 2A and an intermediate conveyor 2B.
It consists of a first conveyor 2 consisting of an inner side conveyor 2 and a second conveyor 4 on the inside, and only the second conveyor 4 is introduced into the packaging machine main body 5.

Regarding the outer conveyor 2A of the first conveyor 2, an endless flat belt 6 is passed between both pulleys 6a and 6b, and a drive motor 7 (
The rotation of the drive unit (drive device) is transmitted via transmission gears 8.9, 10.11.

Regarding the middle conveyor 2B of the first conveyor 2, an endless round belt 12 with a circular cross section is connected to both pulleys 1.
A plurality of hooks are passed in parallel between 2a and 12b, and the rotation of the drive motor 7 with respect to one pulley 12b is transmitted from the transmission gear 8.9.10 to the transmission gear 13 and the sprocket 14.
a, a chain 14, and a sprocket 14b. An electromagnetic brake 15 (brake device) is attached to the rotation center shaft 10a of the transmission gear 1'10.

Regarding the second transport conveyor 4, a plurality of endless round belts 16 having a circular cross section are passed in parallel between both pulleys 17 and 18, and a support plate 19 is installed inside one of the pulleys 17. A plurality of brackets 20 are fixed so as to protrude inwardly, and a similar endless round belt 21 is hung between the pulley 21a supported at the tip of the bracket 20 and the pulley 17. has been done.

The second transport conveyor 4 corresponds to an article supply device 22 having a large number of pedestals 23, and is movable up and down with respect to a packaging section (not shown) of a packaging film transport device. When the article cradle device 22 is in the lowered position as shown, the cradle 23 is placed on the nif round belt 21 of the second conveyor 4.
It is supposed to be located in between. On the opposite side of the second conveyor 4 on this pedestal 23 is an article positioning device 24.
The stopper plate 25 corresponds to this.

A pair of guide rods 26 are provided on each of the general conveyors 2 and 4.
are placed in parallel, and the distance between them can be adjusted.

An intermediate conveyor 2B of the first conveyor 2
A first sensor 27 and a second sensor 28 are provided above the conveyor 2B near the adjacent portion between the conveyor 2B and the second conveyor 174. Then, the item W (the items stored in the tray) is transferred on the transport conveyor 2B.
is first detected by the first sensor 27, and then, when the same article W further moves due to inertial rotation of the conveyor 2B, the second sensor 28 detects this article W.

A drive shaft 29 and a driven shaft 30 are installed between the pulleys 17 and 18 on which the round belt 16 is passed in the second conveyor 4, and a chain 33 is installed between the sprockets 31 and 32 supported at both ends of the drive shaft 29 and the driven shaft 30. The stake has been passed. A pair of stopper members 34 and 35 having a plurality of comb teeth 34a and 35a are installed between both chains 33 at three equal parts of the entire length of both chains 33. It rotates together with 33. Along with this rotation, both stopper members 34
．． The 35 comb teeth 34a, 35a approach the article transfer surface 16a on the round belt 16, protrude upward from between the round belts 16, move along the transfer surface 16a for a certain range in this protruding state, and then move again. The operation of retracting downward from between each round bell 1-16 and leaving the transfer surface 16a is repeated alternately.

The rotation center axis 17a of both pulleys 17, on which the round belt 16 is passed, and the drive shaft 29 are interlocked via a sprocket 36, a chain 37, a sprocket 38, a rotating shaft 39, a sprocket 40, a chain 41, and a sprocket 42. The rotational speed of the round belt 16 is determined by both stopper members 3.
It is faster than the rotation speed of 4.35.

In FIG. 4, the microcomputer 43 is composed of a central processing unit (hereinafter referred to as CPLI) 44, a program memory 45 consisting of a read-only memory (ROM), and a working memory 46 consisting of a readable and replaceable memory (RAM). It is built into a control box (not shown) provided in the equipment to be installed. And CPIJ44
operates according to a control program stored in program memory 45.

The first sensor 27 and the second sensor 28 are input to the CPU 44. When the first sensor 27 detects the article W, the drive motor 7 stops based on the detection signal, and both conveyors 2A and 2B of the first conveyor 2 also stop, and the article W is then When the second sensor 28 detects the article W when the article W is further moved due to the inertial rotation of the conveyor 2B, the electromagnetic brake 15 is activated based on the detection signal, and the first conveyor 2 is completely stopped, and after a predetermined time. (Stopper member 3 in second conveyor 4
The operation of the electromagnetic brake 15 is released and the drive motor 7 is rotated at approximately the same time that one of the belts 4.35 protrudes upward from the round belt 16). (Drive control means) Now, when the articles W are sequentially placed on the flat belt 6 of the first conveyor 2 while being positioned between both guide rods 26, the articles W are placed on the flat belt 6 of the first conveyor A'2. 12 at regular intervals. The first sensor 27 is this item W
When detected, the drive motor 7 stops and the first conveyor 2 also stops.

At this time, when the article W on the first conveyor 2 moves further due to the inertial rotation of the first conveyor 2 and the second sensor 28 detects this article W, the electromagnetic brake 15 is activated and the article W is moved further by the inertial rotation of the first conveyor 2. 2 completely stops, the article W also completely stops at a predetermined position and waits. Further, the article W following this article W also stops at regular intervals.

The second conveyor 4 is driven during the operation of the packaging machine, and the [phase] 34a of one of the stopper members 34 and 35 in the second conveyor A74 is placed on the round bells 1 to 16. When the electromagnetic brake 15 is deactivated and the drive motor 7 rotates approximately in synchronization with the upward protrusion of the article transfer surface 16a, the first conveyor 2 is driven again and the second conveyor 2 is moved upward. The article W waiting on the round belt 16 of the second conveyor 4
transferred above. The article W in the middle of movement on the round belt 16 comes into contact with the color 34a of the stopper member 34, which moves in the same direction as the transport direction A, and the movement of the article W is regulated by this contact. Note that the stopper member 34.
35, a third sensor 53 consisting of a light emitting element 53a and a reflecting plate 53b is disposed on both sides of the round belt 16 of the second conveyor 4, and the sensor 53 detects the article W and marks it for packaging. The film conveyance device is activated and the packaging film is spread on the packaging section.

Thereafter, when the tooth 34a of the stopper member 34 sinks below the article transfer surface 16a on the round belt 16, the article W on the round belt 16 is transferred onto the round belt 21 and positioned by the stopper plate 25, The product waits above the pedestal 23 of the article pedestal device 22 which is already in the lowered position. Slightly closer than this recess, the □□□ tooth 35 of the other stopper member 35
a protrudes above the round bells 1 to 16, and thereafter the next item W is transferred and its movement is regulated in the same manner as in the case described above. The article holder device 22 lifts and lowers once from when one stopper member 34 is recessed until when the other stopper member 35 is retracted, and by this lifting and lowering, the article W waiting on the round belt 21 is unwrapped. It is transported to the department and packaged. Note that even when the next item W is not transferred to the second transport conveyor 4, the item receiving device 22 moves up and down, but since the third sensor 53 does not detect the item W, the packaging film is not transported and the empty packaging is It will not be done.

In the second embodiment shown in FIGS. 5 and 6, the stopper members 34 and 35 in the second conveyor 4 are changed from the first embodiment. That is, the round belt 16 is hooked to one pulley 18 of both pulleys 17 and 18.
A lever 48 is supported on a support shaft 47 installed adjacent to the pulley 17 so as to protrude toward the other pulley 17, and is biased downward by a spring 48a. A stopper member 49 is attached. A cam plate 52 is supported on a support shaft 51 installed below the lever 48, and is brought into contact with a roller 50 supported at an intermediate portion of the lever 48 so as to turn blue. The rotation center shaft 17a of one pulley 17 and the support shaft 51 of the cam plate 52 are interlocked via a sprocket 36, a chain 37, and a sprocket 53. And the cam plate 52
With the zero rotation, the lever 48 tilts upward against the bias of the spring 48a, and the stopper member 49 closes the round belt 1.
The stopper member 49 repeatedly protrudes above the article transfer surface 16a on 6 and then retracts below the article transfer surface 16a by the bias of the spring 48a. Note that when the second sensor 28 detects the item W,
The electromagnetic brake 15 is deactivated and its operation is released after a predetermined period of time, and this release is approximately synchronized with the timing at which the stopper member 49 protrudes above the round belt 16.

In the third embodiment shown in FIGS. 7 to 9, the first sensor 27 of the first embodiment is changed. That is,
The first sensor 27 is composed of a pair of sensors 27a and 27b, and one sensor 27a, the other sensor 27b, and a third sensor 28 are arranged in this order. Further, on both sides of the article receiving device 22, a fourth sensor 54 consisting of a light emitting element 54a and a reflecting plate 54b is arranged. Each sensor 27
a, 27b, and 54 are input to the CPU 44 as a tail.

The fourth sensor 54 detects the article W being conveyed to the article receiving device 22.
Detect. Based on this detection signal, the CPU 44
calculates the width of the item W, and the calculation result is temporarily stored in the working memory 46. The program memory 45 is controlled to move one sensor 27a of the first sensor 27 when the width of the article W is in a large area division, and to move the other sensor 27b of the first sensor 27 when the width of the item W is in a small area division. Data is stored in advance.

The CPU 44 reads the standard '60 data corresponding to the calculated width of the item W from the program memory 45!L! C, the drive motor 7 is stopped by operating one of the rear sensors 27a, 27b. This control action is exactly the same as in the first embodiment, but the stop timing is different from both sensors 27a.

27b. In other words, when the width of the item W is large, the heavy prize is generally more popular, and if the item W is stopped suddenly, the items stored in the tray are likely to ride on top of each other. is stopped at an early timing, and the inertial movement speed of the article W is reduced.

Also, if the width of the item W is small, the local sensor 27b
Due to this function, the drive motor 7 is stopped at a later timing than in the case of one sensor 27a, and the inertial movement speed of the article W is made larger than in the case of one sensor 27a.

In particular, in each of the embodiments described above, even when a large number of items W are sequentially and sequentially placed on the first conveyor ψ2 at the same time, each item W is stopped at the same time at a certain interval from each other by stopping the first conveyor 2. Thereafter, the preceding article W is first transferred to the second conveyor A74, and then the next article W is intermittently transferred under the same action. Therefore, it is no longer necessary to place the articles W one by one on the first transport conveyor 2, and the article supply efficiency is improved.

Furthermore, when the drive motor 7 of the first conveyor 2 is stopped, the conveyor 2 can be braked. Therefore,
Inertial rotation of the first transport conveyor 2 is prevented, and the articles W are reliably stopped at a predetermined position.

Effects of the Invention In short, according to the first invention, a large number of articles W can be sequentially and continuously placed on the conveyor 2 at the same time, and the article supply efficiency can be improved.

Further, according to the second invention, in addition to the effects of the first invention, it is possible to reliably stop the article W at a predetermined position on the conveyor 2 and wait for transfer to the article receiving device 22.

[Brief explanation of drawings]

1 to 4 show a first embodiment of the present invention, FIG. 1 is a side sectional view of the article feeding device, FIG. 2 is a plan view of the device, and FIG. 3 is a - An X-ray sectional view, FIG. 4 is an electrical block circuit diagram, FIG.
9 to 9 show a third embodiment, FIG. 7 is a sectional view of the article feeding device viewed from the side, FIG. 8 is a plan view of the device, and FIG. 9 is an electric block circuit diagram. Item supply device 1, first conveyor 2, second conveyor 4, drive motor 7 (drive device), electromagnetic brake 15 (
brake device), article pedestal device 22, first sensor 27,
Second sensor 28, microcomputer 43, central processing unit (CPU) 44, item W0

Claims (1)

[Claims] 1. An article holder device (
22) A conveyor (2) that transports the same item (W) upward; a first sensor (27) that detects the item (W) on the conveyor (2); and this first sensor (27). ) A drive control means (44) for stopping a drive device (7) for driving the transport conveyor (2) based on a detection signal of Goods feeding device. 2. An article receiving device (
22) A conveyor (
2), a first sensor (27) that detects the article (W) on the conveyor (2), and a drive that drives the conveyor (2) based on the detection signal of the first sensor (27). a drive control means (44) for stopping the device (7); and a second sensor (28) for detecting an article (W) moving on the conveyor (2) due to the inertial drive of the conveyor (2) whose drive has been stopped. ), and a drive control means (44) for operating a brake device (15) that brakes the conveyor (2) based on the detection signal of the second sensor (28). A device that feeds items to an unpackaged product cradle device.