JPH0715757Y2 - Trimming device for newspaper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a newspaper trimming device for trimming the left and right ends of a film in which a bundle of four-fold or eight-fold newspapers is wrapped.

(Prior Art) Generally, when trimming the left and right ends of a film that wraps a bundle of newspapers that is folded in four or eight, whether the bundle of newspapers in which the film is wrapped in advance is folded, that is, is it folded in four? Or, it is placed on a separate conveyor depending on whether it is 8-fold, and the left and right ends of the film are seal-bonded and cut by a trimming device for exclusive use of four-fold or for exclusive use of eight-fold provided on the conveyor line of each conveyor. Trimming. Incidentally, in the case of a four-fold newspaper bundle, when the number of copies is considerably large, the edge of the film wrapping the newspaper bundle has almost no extra portion, and therefore it is common not to perform trimming. .

(Problems to be solved by the invention) However, in this case, since two carrying lines and a trimming device are required for trimming, there is a problem that the installation space for them is considerably wide.

Therefore, in order to solve such a problem, it is conceivable to always trim the left and right ends of the film that wraps the newspaper bundle by a trimming device for four-folding regardless of the difference in folding method of the newspaper bundle. However, with this method, in the case of a bundle of newspapers folded in eight, the extra film remains quite wide, and if you wrap the band over it, the newspaper will be wrinkled, or the extra portion of the film will be different during transport. There is a risk of getting caught in.

The present invention has been made in view of the above points, and an object of the present invention is to appropriately trim a film according to the folding method and the number of copies even for a bundle of four-fold or eight-fold newspapers. Therefore, the present invention is intended to provide a newspaper trimming device which can effectively reduce the installation space.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the solution means of the present invention is a newspaper trimming device for trimming the left and right ends of a film in which a bundle of four-folded or eight-folded newspapers is wrapped by a conveyor. A first discriminating means for discriminating whether the bundle of newspapers conveyed is folded in four or eight; and a second discriminating means for discriminating whether the bundle of newspapers is a predetermined number or more; A common trimming means for trimming one of the left and right ends of a film in which a bundle of folded and octave newspapers is wrapped, and a trimming means for fourfold in which the other end of a film in which a bundle of folded newspapers is wrapped is trimmed. And an eight-fold trimming means for trimming the other end of the film in which a bundle of eight-fold newspapers is wrapped, and the first and second discriminating means. And a control means for controlling the operation of the three trimming means. Then, in the control of the above-mentioned control means, when the bundle of newspapers is a fold of eight, the common trimming means and the trimming means for fold are operated to trim the left and right ends of the film in which the bundle of folds of newspaper is wrapped. However, when the bundle of newspapers is folded in four and the number of copies is less than the predetermined number, the common trimming means and the trimming means for folding four are operated to trim the left and right ends of the film in which the bundle of folded newspapers is wrapped. However, when the bundle of newspapers is folded in four and the number of copies is a predetermined number or more, none of the trimming means is operated.

(Operation) With the above configuration, in the present invention, it is determined by the first determining means whether or not the bundle of newspapers conveyed by the conveyor is folded in four or eight, and the number of copies thereof is also determined. Is determined to be equal to or greater than a predetermined value by the second determination means, and the newspaper bundle is folded in eight under the control of the control means that receives signals from the first and second determination means. In some cases, the common trimming means and the eight-fold trimming means operate to trim the left and right ends of the film that wraps the eight-fold newspaper bundle, and the newspaper bundle is four-fold and the number of copies is less than the predetermined number. In this case, the common trimming means and the quarter-folding trimming means operate to trim the left and right ends of the film in which the bundle of four-fold newspapers is wrapped. On the other hand, when the bundle of newspapers is folded in four and the number of copies is equal to or more than the predetermined number, there is almost no extra portion at the end of the film in which the bundle of newspapers is wrapped. Is not done.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

1 and 2 show the entire structure of a newspaper trimming device according to an embodiment of the present invention, wherein 1 is a support frame, 2 is a belt conveyor provided in the middle stage of the support frame 1, and 3 is the belt conveyor. 2 is an elevation table provided above 2, and the tip of the piston rod 4a of the air cylinder 4 attached to the upper frame 1a of the support frame 1 is connected to the elevation table 3,
By the expansion and contraction operation of the air cylinder 4, the elevating table 3 is provided so as to be able to move up and down under the guide by the pair of guide rods 5, 5.

As shown in detail in FIGS. 3 and 4, the belt conveyor 2 has a drive shaft 11 (specifically, a drive side pulley mounted on the drive shaft 11) and a driven shaft 12 (mounted on the same driven shaft 12). It is configured by winding three belts 13a, 13b, 13c between the driven belt wheel) and the driven belt wheel at predetermined intervals, and the drive shaft 11 is a drive motor provided under the support frame 1.
It is designed to be rotationally driven by 14. Then, for the belt conveyor 2, a belt W1 and W2 of four-fold and eight-fold newspapers, each of which is wrapped with a packaging film of a predetermined size in the previous step, are continuously provided on the belt conveyor 2. The back side (the second by a conveyor (not shown))
(The left side in the figure) is loaded from the inside, and at this time, the bundle W1 of the four-fold newspaper is three belts 13a-1.
In a state of straddling all 3b, the bundle W2 of folded eight newspapers is pre-positioned and carried in in a state of straddling the two belts 13a, 13b on the right side as viewed from the front.

Further, 21 is a first trimming means arranged on the right side of the belt 13a at the right end of the belt conveyor 2, and 22 is arranged between the belt 13b at the center and the belt 13c at the left end of the belt conveyor 2. The second trimming means 23 is a third trimming means disposed on the left side of the belt 13c at the left end of the belt conveyor 2, and corresponds to these trimming means 21 to 23, and the fourth, fifth and third trimming means are provided. 6 trimming means 24,25,
26 is supported by the lifting table 3. The fourth to sixth trimming means 24 to 26 are moved up and down by the expansion and contraction operation of the air cylinder 28 below the guides of the pair of guide rods 27, 27 below the position close to the lower surface of the lift table 3 as shown in the figure. It is possible. Then, the first trimming means 21
The fourth trimming means 24 and the fourth trimming means 24 cooperate with each other as common trimming means to trim the right ends of the films for packaging the four-fold and eight-fold newspaper bundles W1 and W2 carried on the belt conveyor 2. The second trimming means 22 and the fifth trimming means 25 trim the left end of the film that wraps the eight-fold newspaper bundle W2 as the eight-fold trimming means, and further the third trimming means 23.
The sixth trimming means 26 and the sixth trimming means 26 trim the left end of the film that wraps the four-fold newspaper bundle W1 as the four-fold trimming means.

That is, the first to third trimming means 21 to 23 are
For example, the third trimming means 23 is shown in FIGS.
As shown in detail in FIG. 11, it comprises a seal portion 31 for sealing and adhering the end portion of the packaging film, and a cut portion 41 for cutting the outer side of the sheet adhering portion of the packaging film. The sealing portion 31 has a heat wire 34 extending on the upper surface of the frame 32 along the conveyance direction of the belt conveyor 2 via an abutting member 33, and the heat wire 34 is covered with a protective film 35. In addition, a predetermined tension is constantly applied by a tension device 36 including a swinging member and a spring, and electricity is supplied through a lead wire 37 to heat it to a predetermined temperature (Fig. 9). reference).

Further, the cut portion 41 is a pair of frames 42, 43 facing each other with a predetermined interval and provided with abutting portions 42a. And a slider 44 that is slidable in the direction (that is, the conveying direction of the belt conveyor 2). As shown in FIG. 7, the slider 44 is provided with a plurality of cutters 45, 45, ... Which obliquely project upward, at predetermined intervals in the longitudinal direction, and at two front and rear positions in the longitudinal direction. Guide members 46, 46 made of rollers or slide shoes are provided, and each of the guide members 46 is movably fitted in a guide long hole 47 formed in the frame 42.
In the slider 44, the cutters 45, 45, ... Are lower than the contact portions 42a, 43a of the frames 42, 43 by the extension operation of the air cylinder 48 under the guide of the guide member 46 and the guide elongated hole 47. The cutters 45, 45, ... Are moved forward (the drive shaft 11 side of the belt conveyor 2) while projecting above the contact portions 42a, 43a of the frames 42, 43 from the state of being located at.

On the other hand, the fourth to sixth trimming means 24 to 26 have the first contact portion 51 corresponding to the seal portion 31 of the first to third trimming means 21 to 23, and the first to third trimming means. The trimming means 21 to 23 have a second contact portion 52 corresponding to the cut portion 41, and the lifting table 3 is lowered by the extension operation of the air cylinder 4 and the trimming means 24 to 26 are lifted from the lifting table 3. When the air cylinder 28 descends due to the extension operation, the first contact portion 51 and the contact member 33 of the seal portion 31 contact the belt conveyor 2
It holds a film that wraps the upper bundle of newspapers W1 and W2, and the second contact portion 52 is the frame 42, 43 of the cut portion 41.
The film is sandwiched between the upper surface (contact portions 42a, 43a).

Further, as shown in FIG. 12, four sets of light emitting elements 62a, 62b, 62c, 62d for emitting and receiving light in the vertical direction are provided on the rear side, which is the carrying-in side of the bundle of newspapers W1, W2 of the support frame 1. Light receiving element 63a, 63b, 6
3c and 63d are attached to the beam members 1b or 1c of the support frame 1, respectively. The first set of the light emitting element 62a and the light receiving element 63a are configured so that the four-fold and eight-fold newspaper bundles W1 and W2 carried in by the belt conveyor 2 are not displaced from the predetermined position to the right when viewed from the front. It is arranged and set so as to detect whether or not (see FIG. 4). In addition, the light emitting element 62b and the light receiving element 63b of the second set are arranged so as to detect that the bundle W1 or W2 of the four-fold or eight-fold newspaper has been carried in. The light emitting element 62c and the light receiving element 63c are the fourth set of the light emitting element 62d and the light receiving element 63d so as to detect whether or not the eight-folded newspaper bundle W2 is displaced from the predetermined position to the left when viewed from the front. Are arranged and set so as to detect that a bundle W1 of four-fold newspapers has been loaded. The above four sets of light emitting elements 62a to 62d and light receiving elements
63a to 63d, and a bundle of newspapers W by the belt conveyor 2
A first discriminating means 64 for detecting whether 1 or W2 has been conveyed to a predetermined position and discriminating whether the bundle of newspapers is folded into four or eight is configured.

Further, in FIG. 12, reference numerals 65 and 66 denote a pair of light emitting elements and light receiving elements that emit and receive light in the left and right directions on the rear surface side of the support frame 1. The light emitting elements 65 and the light receiving elements 66 are a belt conveyor. A bundle W of newspapers conveyed by 2
Both elements are arranged so as to detect whether or not 1, W2 is equal to or greater than a predetermined height, and thus equal to or greater than a predetermined number of copies.
A large number detecting means 67 which is a second discriminating means is constituted by 5,66. The light emitting element 65 and the light receiving element 66 are attached to the pillar material 1d of the support frame 1 via a mounting bracket 68, as shown in detail in FIG.

Then, the signals of the light receiving elements 63a to 63d of the discriminating means 64 and the light receiving element 66 of the large number detecting means 67 are respectively inputted to the control section 69 of the trimming device (that is, the section containing the control means). The controller 69 controls the first to sixth trimming means 21 according to the folding method (that is, whether it is four-fold or eight-fold) and the number of copies of the newspaper bundles W1 and W2 conveyed by the belt conveyor 2. It is configured to control ~ 26 trimming operations.

Next, the operation of the above-described embodiment will be described. A bundle of newspapers W1 and W2 in which a film is packaged in the previous step is provided on the side of the trimming device with a belt conveyor 2 (a belt conveyor (not shown) continuously provided on the belt conveyor 2). When it is carried in by the first discriminating means 64 on the back side of the support frame 1 (the carrying-in side of the bundle of newspapers), whether the newspaper bundle is folded in four or eight. In addition to the determination, the large number detection means 67 which is the second determination means detects whether or not the bundle of newspapers is a predetermined number or more.

Then, as a result of the discrimination by the discriminating means 64, when it is discriminated that the bundle of newspapers is a fold of eight, the control unit 69
Under the control of the above, the right end of the film in which the bundle W2 of 8-fold newspapers is wrapped by the first trimming means 21 and the fourth trimming means 24 is the above by the second trimming means 22 and the fifth trimming means 25. The left edge of the film is trimmed. This trimming operation will be described in detail by taking the case of trimming the right end of the film as an example.
From the state shown in the drawing to the predetermined position by the extension operation of the air cylinder 4, and the fourth trimming means.
From the state where 24 is close to the lower surface of the lifting table 3, the air cylinder
A predetermined distance is lowered by the extension operation of 28, whereby the first and second contact portions 51, 5 of the fourth trimming means 24 are moved.
2 and the sealing portion 31 of the first trimming means 21 (contact member 33)
The film is sandwiched between the cut portions 41 (the upper surfaces of the frames 42 and 43). At the sandwiching portion between the first contact portion 51 and the seal portion 31, the film sandwiched by the heat of the contact member 33 heated by the lead wire 37 on the seal portion 31 side is welded to the seal. Further, in the sandwiching portion between the second contact portion 52 and the cut portion 41, the slider 44 slides between the frames 42 and 43 sandwiching the film on the cut portion 41 side by the extension operation of the air cylinder 48, Cutters 45, 45 on the slider 44 side,
The film is cut by.

On the other hand, when it is determined that the bundle of newspapers is folded in four, the right end of the film in which the bundle W1 of folded newspapers is wrapped by the first trimming means 21 and the fourth trimming means 24 is the third. The left end of the film is trimmed by the trimming means 23 and the sixth trimming means 26, respectively. However, even if the newspaper bundle W1 is folded in four, when the newspaper bundle W1 is detected by the large number detecting means 67 to be a predetermined number of copies or more, the film wrapping the newspaper bundle W1 has an excess at its end. No trimming is applied to the edges of the film, as it has very few parts.

As described above, according to the newspaper trimming device of this embodiment, both the four-fold and eight-fold newspaper bundles W1 and W2 are provided.
Also, since it is possible to properly trim the film according to its size without leaving a large extra part, separate the four-fold newspaper bundle and the eight-fold newspaper bundle separately The space for arranging a conveyor such as a belt conveyor for loading and unloading a bundle of newspapers with respect to the trimming device and the trimming device can be reduced compared to the case where the trimming device is used for trimming on the line. The cost can be reduced.

Further, in the case of a four-fold newspaper bundle W1, the number of copies becomes a predetermined number or more, and when there is almost no extra portion at the edge of the film that has wrapped the newspaper bundle W1, trimming is not performed on the edge of the film, The time required for the extra trimming operation can be omitted, and the work efficiency can be improved.

Moreover, both quarter-fold and octa-fold newspaper bundles W
Also for 1, W2, since the right end of the film that wraps the newspaper bundles W1, W2 is trimmed by the common trimming means 21, 24, the trimming device itself can be downsized. it can.

(Effect of the Invention) As described above, according to the newspaper trimming device of the present invention,
By determining whether the bundle of newspapers conveyed by the conveyor is in four folds or eight folds, and selectively activating three trimming means corresponding to the folding method, It is possible to appropriately trim the left and right ends of the folded newspaper film without leaving a large extra portion, and it is possible to reduce the installation space and reduce the equipment cost. Also, when the number of copies of a four-fold newspaper bundle exceeds a predetermined number and there is almost no extra portion at the end of the film in which the newspaper is wrapped, trimming is not performed on the end of the film, so extra trimming operation is required. Time can be omitted, and work efficiency can be improved.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a front view showing the entire structure of a newspaper trimming device by cutting out an outer surface material of the right half, FIG. 2 is a left side view of the same, and FIG. The drawing is a plan view of a belt conveyor arrangement portion of the trimming device, FIGS. 4 and 5 are views taken along the lines AA and BB of FIG. 3, respectively, and FIG. FIG. 7 is a side view of the slider, FIG. 8 is an enlarged cross-sectional view taken along line DD of FIG. 3, and FIG.
FIG. 10 and FIG. 11 are enlarged cross-sectional views taken along the line FF and the line GG of FIG. 5, respectively, as seen from the direction of the arrow E-E in the figure. FIG. 12 is a rear view of a part of the trimming device showing the locations of the light emitting element and the light receiving element, FIG.
The drawing is an enlarged sectional view taken along the line HH in FIG. W1 …… Bunch of four-fold newspaper W2 …… Bunch of eight-fold newspaper 21 …… First trimming means (common for four-fold and eight-fold) 22 …… Second trimming means (for eight-fold) 23… … Third trimming means (for four-folding) 24 …… Fourth trimming means (for both four-fold and eight-folding) 25 …… Fifth trimming means (for eight-folding) 26 …… Sixth trimming means ( 64 ... First discriminating means 67 ... Large number detecting means (second discriminating means) 69 ... Control section (control means)

Claims (1)

[Scope of utility model registration request] 1. A newspaper trimming device for trimming the left and right ends of a film in which a four-fold or eight-fold newspaper bundle is packaged, wherein the newspaper bundle conveyed by a conveyor is either four-fold or eight-fold. A first discriminating means for discriminating whether or not there is a second discriminating means for discriminating whether or not the bundle of newspapers has a predetermined number or more.
And the common trimming means for trimming either the left or right edge of the film that wraps the four-fold or eight-fold newspaper bundle, and the other end of the film that wraps the four-fold newspaper bundle. Trimming means for four-folding, trimming means for eight-folding for trimming the other end of the film in which a bundle of newspapers folded in eight is wrapped, and signals for receiving the signals from the first and second discriminating means. And a control means for controlling the operation of the trimming means. In the control of the control means, when the bundle of newspapers is an eight-folded one, the common trimming means and the eight-folding trimming means are operated to perform the eight-folding. Trimming the left and right ends of the film that wraps the newspaper bundle, and if the newspaper bundle is folded in four and the number of copies is less than the specified number, The trimming means and the trimming means for four-fold are operated to trim the left and right ends of the film in which the bundle of four-fold newspapers is packaged, and when the bundle of newspapers is four-fold and the number of copies is a predetermined number or more, A newspaper trimming device characterized in that the trimming means of the above is not activated.