JP4287525B2 - Packaged material transport and supply equipment - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to an apparatus for feeding and supplying an article to be packaged.
[0002]
BACKGROUND OF THE INVENTION
FIG. 1 shows an example of an apparatus for transporting and supplying packages. In this example, the supply belt 1 that conveys the packaged items in order from the upstream side at random (usually in contact with and close to the front and back) is rotated at a constant speed, and the supply belt 1 is disposed on the downstream side of the supply belt 1. 1 is configured to include a separation belt 2 that rotates at a speed higher than 1, and a main body drive belt 3 that is disposed on the downstream side of the separation belt 2 and is driven in synchronization with the operation of the packaging machine body.
[0003]
In addition, a sensor 4 is installed above the separation belt 2 to detect the passage of the package 5, and the speed of the separation belt 2 is controlled based on the output of the sensor 4. That is, basically, the speed of the separation belt 2 is made higher than that of the supply belt 1, so that the separation belt 2 is separated from the package 5 flowing on the supply belt 1 and sent out onto the main body drive belt 3. ing. That is, the front end of the separation belt 2 becomes the start position, and the separation belt 2 is sent out at a constant time interval from the start position, so that the interval between the objects to be packaged before and after moving on the main body drive belt 3 becomes uniform.
[0004]
On the other hand, the main body driving belt 3 is rotationally driven in synchronization with the packaging machine body. More specifically, the main body driving belt 3 has the same speed as the moving speed of the package 5 that moves on the packaging machine body and the packaging film that wraps it. Is set. Further, when the packaging machine main body is temporarily stopped, the main body driving belt 3 is also temporarily stopped. As a cause of this temporary stop, for example, when the article to be packaged 5 does not reach the start position on the separation belt 2, it may be stopped for waiting for a product.
[0005]
Therefore, the driving conditions of the separation belt 2 and the main body driving belt 3 are independent from each other, and only one of them can be driven. When only one belt 2 and 3 is stopped and the other is driven, if the package 5 exists across the separation belt 2 and the main body drive belt 3, the package 5 is moved normally. Since the interval between the front and back objects to be packaged 5 is not performed, it is necessary to prevent the object to be packaged 5 from straddling the belts 2 and 3 when at least one of the objects is stopped.
[0006]
By the way, in the case of a packaging machine equipped with a rotary top sealer 6 such as a horizontal pillow packaging machine, as shown in FIG. 1, when the top sealer 6 is stopped when the packaging machine is stopped at a fixed position or waiting for a product. In order to prevent heat from affecting the film and the package 5, the top sealer 6 needs to be in an open state (a state in which the seal surfaces 6 a face in opposite directions).
[0007]
As for the relationship between the top sealer 6 at this time and the article to be packaged 5 located in the vicinity thereof, the center position in the front-rear direction of the article to be packaged 5 needs to be located at the installation position of the top sealer 6 as shown in the figure. Further, it is necessary to temporarily stop the front end of the article to be packaged 5 at the transition position between the separation belt 2 and the main body driving belt 3. Therefore, the distance from the top sealer 6 to the transition position needs to be a value obtained by adding a predetermined offset amount, that is, half the cut dimension, to n times the cut dimension.
[0008]
Therefore, if the total length of each belt is fixed, the crossing position cannot be adjusted. Therefore, the rotational angle position of the top sealer 6 must be adjusted within a range of ± 90 degrees, and the adjustment work becomes complicated.
[0009]
On the other hand, as in the invention disclosed in, for example, Japanese Patent Application Laid-Open No. 7-81734, an apparatus that can move the transition position and cope with different cut dimensions has been developed. In the device of the present invention, the separation belt and the main body drive belt both have a path that spans a plurality of pulleys at a portion other than the conveying surface and detours a predetermined distance. The pulleys of the two belts positioned at each other are coupled to each other, and the coupled pulleys can be moved forward and backward along the transport direction. And it is comprised so that the path length of the said detour path may be increased / decreased with the forward / backward movement.
[0010]
By adopting such a configuration, it is possible to change the crossover position and provide a versatile transport and supply device, but the structure of the crossover portion becomes complicated, leading to an increase in the size of the device, cleaning, etc. There is a problem that maintenance is complicated.
[0011]
The present invention has been made in view of the above-described background, and the object of the present invention is to solve the above-described problems and to make it possible to change the transition position corresponding to different cut dimensions with a simple configuration. An object of the present invention is to provide an apparatus for transporting and supplying a packaged article rich in properties.
[0012]
[Means for Solving the Problems]
In order to achieve the above-described object, in the packaged article transport and supply device according to the present invention, in the packaged article transport and supply device for sequentially supplying the packaged article to the subsequent packaging machine body, the packaged article is supplied. An upstream conveyor for transporting (corresponding to “separation belt 12” in the embodiment), a transition conveyor disposed on the downstream side of the upstream conveyor, and a downstream side of the transition conveyor; A downstream conveyor (corresponding to “main body drive belt 16” in the embodiment) that is driven in synchronization with the operation, and the upstream conveyor and the downstream conveyor can be driven independently, and The transfer conveyor is synchronized with one of the conveyors which is selectively switched between the upstream conveyor and the downstream conveyor, and the one conveyor is in the process of transporting the packaged goods. And rotate at the same speed, so as to stop at the same time, and is configured capable of changing the combined cross position of the packaged articles in cut dimensions (Claim 1).
[0013]
Further, there are a plurality of the transfer conveyors in series, and each of the transfer conveyors rotates in synchronization with one of the conveyors that is selectively switched with respect to the upstream conveyor and the downstream conveyor. (Claim 2).
[0014]
According to the present invention, the transfer conveyor can be rotated synchronously with both the upstream conveyor and the downstream conveyor, and is synchronized with either one during actual operation. It can be regarded as equivalent to a conveyor synchronized with In other words, if a single transfer conveyor is provided and is synchronized with the upstream conveyor, the transfer position is between the transfer conveyor and the downstream conveyor. Further, when the transfer conveyor is synchronized with the downstream conveyor, the transfer position is between the upstream conveyor and the transfer conveyor. That is, either of the both ends of the transfer conveyor can be selectively switched to the transfer position.
[0015]
Further, as clearly defined in claim 2, when a plurality of transition conveyors are provided, all the transition conveyors are synchronized with the upstream conveyor, or conversely, all the transition conveyors are synchronized with the downstream conveyor. be able to. Thereby, the former is between the transfer conveyor and the downstream conveyor, and the latter is the transfer position between the transfer conveyor and the upstream conveyor.
[0016]
Furthermore, it is also possible to synchronize the upstream side with the upstream conveyor and the downstream side with the downstream conveyor at any position among the boundaries of the plurality of crossing conveyors. In this case, the transition between the transition conveyors that becomes the boundary is the transition position. Accordingly, variations in changing the crossover position increase, and the versatility becomes higher.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 2 shows a first embodiment of a packaged article conveying and supplying apparatus according to the present invention. As shown in the figure, the supply belt 10 driven by the first motor M1 is provided on the upstream side, and the separation belt 12 driven by the second motor M2 is provided on the downstream side.
[0018]
In the present invention, one transition belt 14 driven by the third motor M3 is provided on the downstream side of the separation belt 12, and the main body drive belt 16 driven by the fourth motor is disposed further downstream of the transition belt 14. To do. The main body drive vector 16 is synchronized with the drive of the pillow packaging machine main body 18.
[0019]
Furthermore, the pillow wrapping machine body 18 has a top sealer 19 at the final stage, and a cylindrical film (not shown) surrounding the article to be packaged 20 is cut in the transverse direction to produce a pillow wrapping body. ing. Further, the fixed position of the top sealer 19 is opened as shown in the figure, and this is set to 0 degrees. And it stops at this fixed position (including the temporary stop in product standby etc.).
[0020]
Furthermore, a sensor 21 is installed above the separation belt 12, and it is determined whether or not the packaging object 20 is on the separation belt 12, and further whether or not the packaging object 20 is at the start position. It is like that.
[0021]
Furthermore, each motor M1-M4 is connected to the controller 22, and is rotationally driven at a predetermined timing. The first, second motors M1 and M2 and the fourth motor M4 are driven to rotate in the same manner as in the prior art, and finally the package 20 is placed on the main body drive belt 16 and then on the pillow packaging machine main body 18 at regular intervals. They are transported side by side.
[0022]
Here, in the present invention, the rotational drive control of the third motor M3 is controlled to be selectively synchronized with either the second motor M2 or the fourth motor M4. That is, when synchronized with the second motor M2, the separation belt 12 and the transition belt 14 rotate at the same speed and stop simultaneously. Therefore, in the apparatus having such a configuration, the transition belt 14 exhibits the same function as the separation belt 12, and the downstream end position of the transition belt 14 is the transition position (1).
[0023]
Further, when synchronized with the fourth motor M4, the main body driving belt 16 and the transition belt 14 rotate at the same speed and stop simultaneously. Therefore, in the apparatus having such a configuration, the transition belt 14 performs the same function as the main body drive belt 16, and the upstream end position of the transition belt 14 is the transition position (2).
[0024]
In this way, the transition position can be changed by switching the synchronized motor. Thereby, for example, when the transition belt 14 and the separation belt 12 are synchronized and set to the transition position {circle around (1)}, as shown in FIG. Then, as shown in FIG. 5B, the angular position of the top sealer is adjusted so that the rear end of the article to be packaged 20 is aligned with the crossover position, the crossover belt 14 and the main body drive belt 16 are synchronized, and the crossover position ▲ When set to 2 ▼, as shown in FIG. 3 (c), when the front end of the article to be packaged 20 is set to the crossing position, the rear end of the article to be packaged 20 as shown in FIG. It is only necessary to adjust the angular position of the top sealer to match the crossover position. As a result, the angle adjustment range of the top sealer may be in a range of ± 65 degrees.
[0025]
The angle adjustment range can be narrowed as the number of crossing belts is increased. As an example, as shown in FIG. 4, first and second transition belts 14 a and 14 b are provided between the separation belt 12 and the main body drive belt 14. The belts 14a and 14b are connected to the motors M5 and M6, respectively, and can be driven to rotate independently. In addition, both the separation belt 12 and the main body drive belt 16 can be synchronized. . This is the second embodiment.
[0026]
Therefore, when both the transition belts 14a and 14b are synchronized with the separation belt 12, the transition position becomes point a, and when only the first transition belt 14a is synchronized with the separation belt 12, the transition position becomes point b. When the belts 14a and 14b are both synchronized with the main body drive belt 16, the crossover position is point c. In this way, finer adjustment is possible by switching the three transition positions.
[0027]
In each of the above-described embodiments, the crossover belt and the other belt are synchronized by connecting the drive motor to the transition belt and linking the drive motor with the drive motor of the other belt that synchronizes. However, the present invention is not limited to this, for example, the mechanical interlocking of gears and clutches, etc., and the transition belt itself is not provided with a drive motor, and other belt drive motors are synchronized. Of course, you may make it receive power directly or indirectly from.
[0028]
Moreover, although the example using the belt conveyor as a conveyor was shown in above-described embodiment, it is not restricted to a belt, The conveyor of various forms is applicable.
[0029]
【The invention's effect】
As described above, in the article transport and supply device according to the present invention, a predetermined number of transition belts are interposed between the upstream conveyor and the downstream conveyor that are driven to rotate independently from each other, and Since the rotational drive is performed in synchronization with another adjacent belt by the switching control, the crossover position can be changed. As a result, when the cut dimensions change, the crossover position is changed accordingly, so that adjustment of each part on the packaging machine side is unnecessary or the adjustment amount can be reduced. That is, with a simple configuration, the crossing position can be changed corresponding to different cut dimensions, and the apparatus is rich in versatility.
[Brief description of the drawings]
FIG. 1 is a diagram showing a conventional example.
FIG. 2 is a diagram showing a first embodiment of a packaged article transport and supply device according to the present invention.
FIG. 3 is a diagram for explaining the operation.
FIG. 4 is a diagram showing a second embodiment of the packaged article conveying and supplying apparatus according to the present invention.
[Explanation of symbols]
10 Supply belt 12 Separation belt (upstream conveyor)
14 Crossing belt (crossing conveyor)
14a First transition belt (transition conveyor)
14b Second transition belt (transition conveyor)
16 Body drive belt (downstream conveyor)

Claims (2)

In the packaged goods transport and supply device for sequentially supplying the packaged goods to the subsequent packaging machine body,
An upstream conveyor for conveying the packaged items;
A transition conveyor arranged on the downstream side of the upstream conveyor;
A downstream conveyor disposed downstream of the transfer conveyor and driven in synchronization with the operation of the packaging machine body;
The upstream conveyor and the downstream conveyor can be driven independently, and the transfer conveyor is synchronized with one of the conveyors that is selectively switched between the upstream conveyor and the downstream conveyor. And during the conveyance process of the packaged object, it rotates at the same speed as the one conveyor and stops at the same time so that the transition position of the packaged object can be changed according to the cut size. Packaged material transport and supply device.   A plurality of the transfer conveyors exist in series, and each of the transfer conveyors rotates in synchronization with one of the conveyors that is selectively switched between the upstream conveyor and the downstream conveyor. The packaged article conveying and supplying apparatus according to claim 1.

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