JP2887780B2 - Shutter positioning device for envelope cutting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing foods such as buns and rice balls, and more particularly, to an apparatus for improving the productivity by enabling continuous operation in the production of these. .

[0002]

2. Description of the Related Art In a conventional wrapping and cutting apparatus, for example, a bar-shaped food material is supplied to a central box formed by combining a shutter having two adjacent sides as sliding surfaces, and the shutter is slid to close the box. There is a wrapping and cutting device that opens and closes the wrapper. In the case of continuous operation of these productions,
If the material of the shutter expands due to heat generation and the fit becomes less comfortable, the shutter burns in, or if the fit becomes too loose due to the wear of the shutter and there is too much backlash, there is too much play in the food. A device has been proposed which solves these problems by adjusting the fitting of these shutters, since scars are formed on the surface of the material or complete encapsulation cannot be cut (Japanese Utility Model Application Laid-Open No. Hei 1 (1999)). -49132).

Further, as a prior art having a structure similar to the present invention, a plurality of shutter bodies rotatably fitted to fulcrums provided at equal intervals on a circumference are narrowed around a central axis of the circumference. And there is a wrapping and cutting device that rotates the shutter body which is assembled so as to cooperate and form a box that can be opened and supplies a bar-shaped food material to the box, and as means for solving the same problem as above, It has been proposed that a holder that is eccentric is fitted to the center axis of a shutter body, a shutter is further mounted on the holder, and the holder is rotated to adjust the fitting of the shutter (Japanese Patent Laid-Open No. HEI 9-102572). 7
-246080).

[0004]

SUMMARY OF THE INVENTION The present invention relates to an improvement for further enhancing the envelope cutting action of a conventional envelope cutting device which rotates a shutter body. This solves the problem of thermal expansion and contraction of the shutter body, or wear of the shutter body due to long-term use, resulting in poor fit and reduced wrapping cutting action. Adjustment to ensure the fit, eliminate the scar on the fabric surface when cutting the wrapping, enhance the wrapping cutting effect more than before, and prevent trouble even in continuous operation. Things.

[0005]

SUMMARY OF THE INVENTION According to the present invention, there is provided a shutter positioning device which improves the fitting of a plurality of shutter bodies with each other so that the opening and closing operation of the enclosure is good.

A plurality of shutter bodies which are rotatably fitted on a shaft with fulcrums provided at equal intervals on the circumference a are composed of a holder fitted on the shaft and a shutter which forms the enclosure. The holder and the holder are axially attached to each other by an eccentric shaft, and the eccentric shaft is provided in a direction perpendicular to the rotation axis of the shutter body.

Since the center of the shaft fitting portion of the shutter portion and the center of the shaft fitting portion of the holder portion deviate from each other, the rotation of the eccentric shaft causes the mounting position of the shutter body to move and the eccentric shaft to move relative to each other. It is intended to adjust and improve the fit.

The set angle of the at least two eccentric shafts is adjusted in a similar manner, the shutter is moved in parallel, and the adjacent shutters from the open state to the closed state formed by the cooperation of the shutters are closed. Can be brought into an optimal state. When the eccentric shaft is provided at right angles to the rotation axis of the shutter body and the rotation angle of the eccentric shaft is changed to change the amount of eccentricity and the position of the shutter is changed, the shutter is radially centered on the center a. In this case, the shutter moves linearly by the amount of eccentricity, so that there is no possibility that one of the adjacent shutters will be hit.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A shutter positioning device according to the present invention includes a shutter for covering and cutting a continuous rod-shaped material supplied in a state where an inner packaging material is covered with an outer cover. A plurality of shutter bodies rotatably fitted to a shaft are assembled around a central axis of a circumference a so as to cooperate to form an enclosable enclosure that can be closed and opened. In the wrapping and cutting apparatus to be supplied, the shutter body includes a holder portion fitted to the shaft and a shutter portion forming the enclosure, and the shutter portion and the holder portion are axially attached by an eccentric shaft. The eccentric shaft is provided in a direction perpendicular to the rotation axis of the shutter body.

The eccentric shaft of the holder may be any type as long as it has at least two eccentric shafts perpendicular to the rotation axis of the holder. When the rotation axis is vertical, the two eccentric axes of the holder are preferably on the same horizontal plane.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIGS. 1, 2, and 6 are schematic plan views for explaining the structure of a shutter body in a device for cutting and covering a bar-shaped food material, and FIG.
7 is a side view illustrating the configuration of the shutter positioning device, FIG. 4 is a partial cross-sectional plan view illustrating the configuration of the shutter positioning device, FIG. 5 is a plan view illustrating the configuration of the shutter body, and FIG.
Is an overall front view illustrating the configuration of the envelope cutting device of the present invention,
8 and 9 are explanatory diagrams for driving the shutter body.

First, a description will be given of an envelope cutting device provided with the shutter positioning device of the present invention.

In FIG. 7, a discharge device shown as X in FIG. 7 is a discharge device for extruding food materials in a continuous bar shape. In this embodiment, a discharge device for an inner packaging material and a discharge device for an outer skin material are prepared. A continuous bar-shaped food material D is molded and extruded in an enclosure 2 (see FIG. 1) formed by the located shutter bodies 1,. 6, 8 and 9 show a drive mechanism 3 for rotating the shutter body 1 in the forward and reverse directions. The rotational movement of the motor 4 is transmitted through the cam 33, the arm 34, the rod 35, the gear 36, and the gear 31, 32, the shutter bodies 1 rotate in synchronization with each other to cut and cover the bar-shaped food material D. The cam 37 connected to the motor 4 is for moving the entire driving mechanism 3 of the shutter body 1 up and down, and the rotation of the cam 37 causes the driving mechanism 3 to move up and down around the support shaft 38. A conveyor 5 is provided below the drive mechanism 3 to receive the product cut and wrapped by the shutter and transport the product to the next process. The receiving of the product on the conveyor 5 may be performed in synchronization with the vertical movement of the drive mechanism 3.

As shown in FIG. 4, the shutter body 1 of this embodiment comprises a shutter portion 11 and a holder portion 12, and has a leading edge 1a at the leading end of the shutter portion 11. Six shutter bodies 1 having the same shape and having side edges 1b toward the fulcrum 1c are rotatably arranged on vertical support shafts P provided at equal intervals on the circumference a, and the shutter bodies 1 are arranged on a horizontal level. I do. The front edge 1a of the shutter body 1 abuts against the side edge 1b of the adjacent shutter body 1, and an enclosure 2 that can be squeezed and closed and opened around the center axis of the circumference a is formed in cooperation. .

The shutter positioning device will be described. A hole 14 is formed in a direction perpendicular to the rotation shaft 13 of the holder 12.
Are provided in two places. The holes 14 are provided at the same level. The non-eccentric portion 15 of the eccentric shaft 15 is
a and the eccentric portion 15 of the eccentric shaft 15
b is fitted into the hole of the shutter 11. And eccentric shaft 1
5, the bolt 16 is inserted into the hollow hole 15c, and the shutter part 11 and the holder part 12 are fastened to connect the holder part 12 and the shutter part 11.
The eccentric shaft 15 comprises an eccentric portion 15a and a non-eccentric portion 15b,
The centers of the two are shifted from each other.

An angular position 12a (FIG. 3) is shown around the hole 14 of the holder 12, and the eccentric shaft 15 fitted with the shaft can be rotated to select the angular position of the shaft. This angle position erects the pin 15d of the eccentric shaft 15,
It is fixed so as to fit into a small hole 14 a provided in the holder portion 12. This small hole 14a is the hole 14 of the holder 12.
The number of the angular positions 12a is provided around the periphery of the small hole 14a. When the angular position is changed, the fitting position of the small hole 14a changes. In this way, the eccentric shaft can be fixed at a predetermined angular position. In the present embodiment, the fixing of the angular position is performed by a combination of the small hole 14a and the pin 15d. However, as another fixing method, the surfaces of the eccentric shaft and the holder that come into contact with each other are formed into tooth surfaces. Means for fixing may be used.

By changing the angular position 12a in this manner, the distance L from the axis of the eccentric shaft 15 to the leading edge 1a can be adjusted, so that the distance from the rotating shaft 13 to the leading edge 1a can be reduced. It can be adjusted.

In the adjustment of the distance, since the trajectory of the adjustment movement of the shutter 11a moves linearly from the rotation shaft 13 along the leading edge 1a, the shutter 11a may hit one of the adjacent left and right shutters. Absent.

When two eccentric shafts 15 are provided and the two are rotated in a similar manner, the shutter portion 11 can be moved in parallel with the horizontal level in the direction of the center a while maintaining the horizontal level. The same eccentric amount can be adjusted at any position in the thickness direction without the tip edge 11a of the portion 11 being inclined.

Therefore, when the position of the shutter is to be corrected by selecting the eccentric angle using the rotating shaft 13 as an eccentric shaft as in the conventional case, the rotating shaft 13 is eccentric, and the shutter is not eccentric. In the present invention, the problem that the shutter moves left and right, and one side hits in fitting with an adjacent shutter is solved.

With the above configuration, the shutter can be positioned. In the position adjustment of the shutter in the present embodiment, it is preferable to adjust the eccentric angle of each of the six shutter bodies 1 by the same amount. When the eccentric angle of each of the six shutter bodies 1 is adjusted by the same amount, the six shutters move up and down by the same amount. However, when each of the shutter bodies 1 is moved by the same amount, the leading edge 1a of the shutter body 1 The contact state with the side edge 1b of the projection can be maintained in the same state.

In the present embodiment, the shutter body is described as a combination of six shutters, but any combination other than six can be arbitrarily determined.

[0023]

The present invention is an improvement of the conventional wrapper cutting device which rotates the shutter body to further enhance the wrapper cutting action, and the shutter body is thermally expanded due to a change in working environment. It was possible to solve the problem that the shutter body contracted, or the shutter body was worn due to long-time use, the fitting was poor, and the encapsulation cutting action was reduced.
In the present invention, when adjusting the mounting position of the shutter body, the shutter can be radially moved and adjusted toward the center of the enclosure, so that the fitting is ensured, and the scar on the cloth surface at the time of cutting the envelope is also reduced. The purpose of the present invention is to eliminate the wrapping effect more than ever before, and to prevent trouble even in continuous operation.

[Brief description of the drawings]

FIG. 1 is a plan view showing a configuration of a shutter body in an envelope cutting device.

FIG. 2 is a plan view showing a configuration of a shutter body in the envelope cutting device.

FIG. 3 is a side view of the shutter positioning device.

FIG. 4 is a plan view of a shutter positioning device.

FIG. 5 is a plan view of a shutter positioning device.

FIG. 6 is an explanatory view of driving a shutter body.

FIG. 7 is an overall front view of the envelope cutting device.

FIG. 8 is a plan view illustrating a shutter body driving mechanism.

FIG. 9 is a side view illustrating a driving mechanism of the shutter body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shutter body 2 Enclosure 3 Drive mechanism 11 Shutter part 12 Holder part 13 Rotation axis

Claims (1)

(57) [Claims] A plurality of shutters, which are rotatably fitted around fulcrums provided at equal intervals on a circumference a, are squeezed around a center axis of the circumference a so as to form an enclosure capable of being closed and opened. In a wrapping and cutting apparatus assembled to move and form, a shutter body comprises a holder part fitted to the shaft and a shutter part forming the enclosure, and the shutter part and the holder part are separated by at least two biases. A shutter positioning device for an envelope cutting device, wherein the shaft is attached by a core shaft, and the eccentric shaft is provided in a direction perpendicular to a rotation axis of the shutter body.