JP2012001294A - Sheet placing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device automatically covering a sheet on contents stored in a case.SOLUTION: This sheet placing machine includes: a conveyor part 20 which is disposed on a base 11 and conveys the case 90 downstream from the upstream; a sheet supply part 30 having a roll installation part 31 disposed on the upstream side of the conveyor part 20 and installed with a roll 80 around which the sheet 81 is wound, and guide rollers 33, 34 guiding the sheet 81 installed to the roll installation part 31 and imparting tension; a sheet holding part 40 which is disposed on the downstream side of the sheet supply part 30 and presses the sheet 81 supplied from the sheet supply part 30; a sheet pulling part 50 equipped on the downstream side of the sheet holding part 40, grasping an end part of the sheet 81, and pulling out the end part to the downstream side; a sheet cutting part 30 cutting the sheet 81 pulled out by the sheet pulling part 50; and a sheet depression part 70 placing the cut sheet 81 on the contents 91 inside the case 90.

Description

  The present invention relates to a sheet placing machine capable of covering a fish or the like housed in a case such as a fish box with a sheet.

Fresh fish, other foods, and non-food (hereinafter referred to as “contents”) are contained in a case with an open top such as polystyrene, resin, or wood, and the contents are covered with a sheet of film or paper. The work is done manually. Sheets are covered to protect the contents, prevent drying, prevent splashing, and prevent direct contact with ice, etc., and describe the details of the contents and the shipment, manufacturer, delivery destination, etc. In some cases.
A polyethylene film called a perch film may be used as a sheet for contents having moisture.

As the perch film, a perch film having a perforation per predetermined length in a state of being wound around a roll is used. The operator pulled the perch film from the roll for a predetermined length, cut the perch film at the perforation, and placed the perch film on the contents of each case.
Since the perch film is flexible and easy to bend, it was necessary to work with both hands carefully in order to put the perch film on the contents well, and the work efficiency was poor.
Further, since the contents are housed in the case and the work other than the work of placing the perch film during the work up to shipping is mechanized, mechanization of the work of placing the perch film is desired.

  In addition, the conventional perforated film needs to be cut at the perforation portion even when the size of the case or the contents changes, and cannot sufficiently cope with cases and contents having different lengths.

  An object of the present invention is to provide an apparatus capable of automatically covering a sheet with contents contained in a case.

In order to solve the above problems, the sheet placing machine of the present invention is:
A conveyor section (20) disposed on the base (11) and transporting the case (90) from upstream to downstream;
A roll mounting part (31) that is disposed upstream of the conveyor unit (20) and mounts a roll (80) around which the sheet (81) is wound, and a sheet (81) mounted on the roll mounting part (31). ) And a sheet supply unit (30) having guide rollers (33) and (34) for applying tension,
A sheet holding unit (40) disposed on the downstream side of the sheet supply unit (30) and holding the sheet (81) supplied from the sheet supply unit (30);
A sheet pulling section (50) disposed downstream of the sheet holding section (40), gripping an end of the sheet (81) and pulling it downstream;
A sheet cutting section (30) for cutting the sheet (81) pulled out by the sheet tension section (50);
A sheet pressing unit (70) for placing the cut sheet (81a) on the contents (91) in the case (90);
Have

According to the sheet loading machine (10) of the present invention, the case (90) is conveyed by the conveyor unit (20), and the wound sheet (from the roll (80) mounted on the sheet supply unit (30) ( 81) is pulled out to a predetermined length by the sheet tension part (50), one end is held by the sheet holding part (40), and the sheet is cut by the sheet cutting part (60). ) Is released, and the cut sheet (81a) is pushed down to the case (90) by the sheet pressing portion (70) and placed on the contents (91) of the case (90).
As described above, by automating the sheet placement work that has been done manually in the past, the work efficiency can be improved, and the contents (91) are housed in the case (90) and shipped. Can be completely mechanized.

Also, by adjusting the tension length of the sheet tension part (50), the sheet (81) is cut according to the length of the case (90) and contents (91) and placed on the contents (91). Therefore, there is an advantage that the waste of the sheet (81) and insufficient coating can be prevented.
Further, since the sheet (81) can be cut by the sheet cutting part (60), it is not necessary to form a perforation on the sheet (81).

It is sectional drawing which looked at the sheet | seat placement machine of this invention from the side, Comprising: The sheet | seat holding | maintenance part and the sheet | seat tension | tensile_strength part have shown the state which approached. It is sectional drawing which looked at the sheet | seat placement machine of this invention from the side, Comprising: The state which has pulled out the sheet | seat by the sheet | seat tension | pulling part is shown. It is sectional drawing which looked at the sheet | seat placement machine of this invention from the side, Comprising: The state which has cut | disconnected the sheet | seat pulled out by the sheet | seat cutting part is shown. It is sectional drawing which looked at the sheet | seat placement machine of this invention from the side, Comprising: The state which is pressing down the cut | disconnected sheet | seat to the case by the sheet | seat pressing part is shown. It is an expansion perspective view of a sheet cutting part.

1 to 4 are side sectional views of the sheet placing machine (10) of the present invention. As shown in the figure, the sheet placing machine (10) of the present invention includes a conveyor unit (20) arranged from the upstream side (right side in the figure) to the downstream side of the base (11), the conveyor unit (20 ) Provided upstream of the sheet supply unit (30), downstream of the sheet supply unit (30) has a sheet holding unit (40), a sheet cutting unit (60) and a sheet tension unit (50). In addition, a sheet pressing portion (70) is provided above the transition path of the sheet pulling portion (50).
Further, as shown in FIG. 1, an operation panel (13) for an operator to operate is provided on the upper part of the sheet placing machine (10). The operation panel (13) is electrically connected to the control means (15) disposed at an appropriate position of the sheet placement machine (10), and the control of the sheet placement machine (10) is controlled by the control means (15). This is performed based on the operation command from.
The operation panel (13) displays and inputs various settings and states of the sheet placing machine (10), such as the feed length and feed speed of the sheet (81), the remaining amount, the number of processing of the case (90), etc. be able to.

  As shown in FIG. 1 and the like, the conveyor section (20) for conveying the case (90) has a plurality of rollers (21), (21) and / or belts (22), and an annular belt (22). The belt (22) is run in the direction of arrow A in the figure by a motor (not shown) provided on one end of the belt, and the case (90) placed on the belt (22) is removed from the upstream side of the conveyor section (20). As shown in FIG. 1, the case (90) is temporarily stopped below the sheet supply unit (30) and the sheet (81) is placed thereon, and then conveyed downstream.

  As shown in FIG. 1, the conveyor unit (20) has guides (23) and (23) that guide the position of the case (90) to the approximate center in the transport direction on both the left and right sides of the belt (22). The guides (23) and (23) can be composed of a pair of left and right guide plates, and preferably have pushers (25) and (25) for pushing the case (90) toward the center. The pushers (25) and (25) can be constituted by an actuator such as a cylinder device, and even when the case (90) is transported obliquely, the left and right pushers (25) and (25) are moved by the actuator. By extruding evenly, the case (90) can be corrected straight.

  The presence / absence and position of the case (90) can be detected by a plurality of sensors (26), (27) and (28) provided on the conveyor unit (20). Detection signals from the sensors (26), (27) and (28) are transmitted to the control means (15). An infrared sensor can be used as the sensors (26), (27), and (28).

As shown in FIG. 1, the conveyor section (20) starts operating with the case (90) placed on the downstream side, and operates the motor to turn the case (90) into the state shown in FIG. The sheet is moved to a position below a sheet pressing unit (70) described later.
When the sensors (27) and (28) detect that the case (90) has been conveyed to a predetermined position, the control means (15) stops the operation of the motor of the conveyor section (20).

  In this state, as shown below, the sheet (81) is pulled out from the sheet supply unit (30).

As shown in FIG. 1, the sheet supply unit (30) is arranged on the upstream side of the conveyor unit (20), and a roll mounting unit to which the roll (80) around which the sheet (81) is wound is mounted. (31) and a plurality of guide rollers (33), (34) for applying a predetermined tension to the sheet (81) drawn from the roll (80) attached to the roll attaching portion (31).
The guide roller indicated by reference numeral (33) is rotatably supported, and the guide roller indicated by reference numeral (34) is supported by a tension bar (35) that is supported coaxially with the axis of the roll mounting portion (31). It is attached so that it can rotate freely.

In the tension bar (35), guide rollers (34) and (34) are pivotally supported on the distal end side, and are pivotally supported coaxially with the roll mounting portion (31) at a position close to the proximal end side. The tension bar (35) is disposed such that the tip side is inclined obliquely downward due to the weight of the guide rollers (34) (34), and the inclination is regulated by a stopper (not shown). A tension bar detection sensor (36) is provided in the transition path on the base end side, and the tension bar detection sensor (36) detects that the tension bar (35) hits the stopper, and controls the control means. Send to (15).
That is, in a state where the sheet (81) is pulled out by a sheet pulling section (50) described later, the tension bar (35) is lifted in the direction in which the guide rollers (34) (34) are lifted as shown in FIG. B) to give a suitable tension so that the sheet (81) does not sag and tear, and after the sheet (81) is pulled out as shown in FIG. 3, the weight of the tension bar (35) Therefore, the sheet (81) is pulled out from the roll (80). When the tension bar (35) returns to its lowest position, the tension bar (35) is detected by the sensor (36), and the control means (15) pulls out the sheet (81) by the sheet tension part (50). Is acceptable.

The sheet (81) is guided from the sheet supply unit (30) through the plurality of guide rollers (38) and (38) to the sheet holding unit (40) disposed on the downstream side of the sheet supply unit (30). .
The sheet holding part (40) is configured such that the sandwiching plates (41) and (41) arranged up and down can be approached and separated by an actuator (43) controlled by the control means (15), as shown in FIG. The end portion of the sheet (81) is held by the sandwich plates (41) and (41), and when the sheet (81) is pulled out by the following sheet tension portion (50) as shown in FIG. (41) When the sheets (41) are separated from each other and the sheet (81) is cut by the sheet cutting part (60), the end portions of the sheet (81) are brought closer to each other by bringing the sandwiching plates (41) (41) closer together. Hold.

  On the downstream side of the sheet holding part (40), there is a sheet tension part (50) for pulling out the sheet (81) from the upstream side toward the downstream side. The sheet pulling section (50) has a pair of upper and lower grip plates (51) (51) that can be approached and separated by an actuator (53) controlled by the control means (15). The seat pulling section (50) is arranged so as to be slidable along a pair of guides (55) and (55) arranged on the left and right of the running path of the seat (81) by a driving device (not shown).

  As shown in FIG. 1, the sheet tension part (50) is a sheet held by the sheet holding part (40) by opening the grip plates (51) (51) in the state of being close to the sheet holding part (40). Hold the end of (81). In this state, as shown in FIG. 2, the holding plates (41) and (41) of the sheet holding part (40) are opened and along the guide (55), as shown by an arrow C in FIG. By moving the sheet pulling section (50), the sheet (81) is pulled out from the sheet supply section (30).

  The downstream moving distance of the sheet tension part (50) can be set by detecting the length of the case (90) supplied to the conveyor part (20) with the sensors (27) and (28). It can be set by the operator operating the operation panel (13).

In a state where the sheet (81) is pulled out by the sheet pulling unit (50), the sheet holding unit (40) is closed again to hold the sheet (81).
In this state, as shown in FIG. 3, the sheet (81) is cut by the sheet cutting section (60) disposed substantially above the sheet holding section (40).

  As shown in FIGS. 3 and 5, the sheet cutting unit (60) has a cutter (61) for cutting the sheet (81), and the cutter (61) can be moved up and down by an actuator (63). And a drive device that is slidably disposed on a guide (64) (64) disposed in the width direction of the seat (81), and can be constituted by a belt (not shown) and a motor (65), The sheet (81) can be reciprocated in the width direction (the direction of arrow F in FIG. 5).

  The cutter (61) is preferably a double-edged one as shown in FIG. 5, whereby the sheet (81) can be cut both in the forward path and in the return path.

  The sheet cutting portion (60) is lowered as indicated by an arrow D in FIGS. 3 and 5, and the cutter (61) is moved in the width direction of the sheet (81) in the direction of arrow F in FIG. 81) is cut, and in this state, the sheet pulling section (50) opens the gripping plates (51) and (51) to release the cut sheet (81a). As a result, the cut sheet (81a) starts to fall downward by the gravitational action.

  The cut sheet (81a) is accurately and quickly guided to the case (90) by the sheet pressing unit (70), and placed on the content (91) in the case (90), and the content (91) Adhere to. The sheet pressing part (70) is provided because the sheet (81a) is relied only on dropping due to gravity action when the cut sheet (81a) is relied on by the wind, static electricity, moisture, etc. It is because it may adhere to.

The sheet pressing unit (70) includes an actuator (71) controlled by the control means (15), and a plate (72) that can be moved up and down by expansion and contraction of the actuator (71). A plurality of rods (73) (73) are extended downward.
By pressing down the sheet (81a) with the plurality of rods (73) (73), it is possible to prevent the sheet (81) from adhering to the sheet pressing part (70) due to static electricity or moisture.

  After the sheet (81) is cut, as shown by an arrow E in FIG. 4, the actuator (71) is extended by the control means (15), so that the cut sheet (81a) is removed from the case (90). It is quickly and accurately pushed down and placed on the internal contents (91).

  When the sheet (81a) is placed on the case (90), the conveyor unit (20) is operated to convey the case (90) downstream, and the next case (90) is moved to the conveyor unit (20). The above operation may be repeated on the upstream side.

  Note that the cutting length of the sheet (81), that is, the moving distance of the sheet pulling portion (50) is not set on the sheet placement machine (10) side as described above, but is set on the sheet (81). It is also possible to print a mark that can be detected in step, and to control the movement distance of the sheet pulling section (50) by detecting the mark. Further, the position of the characters and symbols printed on the sheet (81) may be detected by a sensor to control the moving distance of the sheet pulling section (50).

  The sheet (81) used in the present invention can be used by winding a perforated sheet around a roll (80), but even a perforated sheet can be cut along the perforated line. Of course, by setting, it can be used for the sheet placing machine (10) of the present invention.

  The sheet placing machine of the present invention is useful as an apparatus that can cut a sheet wound on a roll and place it quickly and accurately on the contents of the case.

(10) Sheet placement machine
(20) Conveyor section
(30) Sheet supply unit
(40) Seat holder
(50) Sheet tension part
(60) Sheet cutting part
(70) Sheet pressing part
(80) Roll
(81) Seat
(90) Case

Claims (5)

A conveyor section (20) disposed on the base (11) and transporting the case (90) from upstream to downstream;
A roll mounting part (31) that is disposed upstream of the conveyor unit (20) and mounts a roll (80) around which the sheet (81) is wound, and a sheet (81) mounted on the roll mounting part (31). ) And a sheet supply unit (30) having guide rollers (33) and (34) for applying tension,
A sheet holding unit (40) disposed on the downstream side of the sheet supply unit (30) and holding the sheet (81) supplied from the sheet supply unit (30);
A sheet pulling section (50) disposed downstream of the sheet holding section (40), gripping an end of the sheet (81) and pulling it downstream;
A sheet cutting section (30) for cutting the sheet (81) pulled out by the sheet tension section (50);
A sheet pressing unit (70) for placing the cut sheet (81a) on the contents (91) in the case (90);
A sheet placing machine characterized by comprising:   The sheet placing machine according to claim 1, wherein the conveyor unit (20) has a guide (23) for guiding the case (90).   The sheet cutting section (60) is mounted so as to be slidable along the guide (64) that can reciprocate in the width direction of the sheet (81), and passes through the transition path of the sheet (81). The sheet placing machine according to claim 1 or 2, wherein the cutter (61) is a double-edged blade capable of cutting in both directions.   The sheet placing machine according to any one of claims 1 to 3, wherein the sheet pressing section (70) includes a plurality of rods (73) for pressing the sheet (81) downward.   A sheet wound around a roll (80) used in the sheet placing machine according to any one of claims 1 to 4.

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