JPS5921873Y2 - cutter mixer - Google Patents

Description

[Detailed description of the invention] Industrial field of application The present invention is a method of rotating the cutter and the rotary plate containing the cut object with a cover covering the cutter and the rotary plate containing the cut object. This relates to a cutter mixer for cutting.

Structure of a conventional example and its problems FIG. 1 shows the structure of a conventional cutter mixer. Reference numeral 5 denotes a rotary plate that accommodates an object to be cut, such as meat, and this rotary plate 5 is connected to a drive motor (not shown). ) rotates when driven.

Reference numeral 1 denotes a rotary cutter that combines a plurality of crescent-shaped blades, and the lower part of the rotating surface of this cutter 1 is located in a rotating plate 5.

2 is a drive motor that rotates the cutter 1; 3 is a cover 4 that covers the upper part of the cutter 1 and a part of the rotary plate 5;
An opening/closing motor that opens and closes, 9 is a limit switch installed around the cover 3, and this limit switch 9 is
It closes when the cover 3 is closed, and opens when the cover 3 is open.

7 is a drive switch in which the input terminal 7a is connected to the power supply 6 and the output terminal 7b is connected to the drive motor 2 and the drive motor of the rotary plate 5 via the limit switch 9; 8 is the input terminal 8a connected to the output terminal of the drive switch 7; Connect to 7C and output terminal 8b
and 8C are opening/closing switches connected to the opening/closing motor 4. When the drive switch 7 is connected to the output terminal 7C and the output terminal 8b is connected, the opening/closing switch 8 closes the cover 3.
The opening/closing motor 4 rotates in the direction in which the cover 3 opens, and when the output terminal 8C is input, the opening/closing motor 4 rotates in the direction in which the cover 3 closes.

In the conventional example configured as described above, when cutting the object to be cut, first, the object to be cut is placed in the rotary tray 5, and the drive switch 7 is left connected to the output terminal 7C.
When the open/close switch 8 is connected to the output terminal 8C, the open/close motor 4 closes the cover 3, closes the limit switch 9, and closes the drive motor 2 and the drive motor of the rotating plate 5, and the output terminal 7b of the drive switch 7. Becomes conductive.

Therefore, when the drive switch 7 is turned on to the output terminal 7b,
The driving motors of the drive motor 2 and the rotary plate 5 are energized, the cutter 1 and the rotary plate 5 are rotated, and the object to be cut is cut.

When taking out the cut object from the rotary plate 5, the drive switch 7 is turned on to the output terminal 7C, and the power to the drive motor 2 and the drive motor of the rotary plate 5 is cut off. The rotation of the rotary plate 5 is stopped.

Therefore, when the open/close switch 8 is inserted into the output terminal 8b,
The cover 3 is opened by the opening/closing motor 4, and the cut object can be taken out from the rotating plate 5.

When cleaning the cutter 1, cover 3, and rotating plate 5, water may be poured into the rotating plate 5 instead of the object to be cut, and the cutter 1 and rotating plate 5 may be rotated.

Furthermore, even if the drive switch 7 is accidentally inserted into the output terminal 7b while the cover 3 is open, the limit switch 9
While the cutter 1 and the rotary plate 5 remain open, the power to the drive motors of the drive motor 2 and the rotary plate 5 is cut off, so the cutter 1 and the rotary plate 5 do not rotate.

By the way, since the rotating parts of the cutter 1 and the drive motor 2 are heavy, even if the drive switch 7 is switched from the output terminal 7b to the output terminal 7C, the cutter 1 etc. will not stop immediately due to inertia. , when cleaning the rotating plate 5, etc.,
Almost no load is applied to the cutter 1, and it takes more time until the cutter 1 completely stops.

Therefore, immediately after switching the drive switch 7 from the output terminal 7b to the output terminal 7C, the open/close switch 8 is switched to the output terminal 8.
When switching from C to output terminal 8b, the cover 3 will open before the cutter 1 has completely stopped, so the material to be cut, water, etc. in the rotary tray 5 will come out and contaminate the cutter mixer and its surroundings. or if the work tool is carelessly removed from the rotating plate 5.
There is a drawback that a hand or the like may be inserted into the rotary plate 5, causing a serious accident such as a severed hand or the like, and this danger is especially great when cleaning the rotary plate 5 or the like.

Purpose of the Invention The purpose of the present invention is to prevent the cover from opening until the cutter stops rotating, in order to eliminate the drawbacks of the prior art as described above.

Structure of the invention The invention cuts off the power to the opening/closing motor even if the opening/closing switch is inserted into the cover opening terminal while the cutter is rotating.
A safety switch that prevents the cover from opening is connected between the opening/closing motor and the opening/closing switch.

DESCRIPTION OF EMBODIMENTS FIG. 2 shows the configuration of an embodiment of the present invention.
The same reference numerals as those in the figure indicate the same parts, and 10 is a safety switch consisting of a switch part 10a and a timer 10b that drives the contact piece of the switch part 10a. The contact of part 10a is connected between the output terminal 8b of the opening/closing switch 8 with input terminal 8a connected to 6 and the opening/closing motor 4, and the terminal of timer 10b is connected to the output terminal 7C of the drive switch 7. has been done.

In this embodiment configured in this way, the open/close switch 8 is turned on while the drive switch 7 remains connected to the output terminal 7C.
When inputted into the output terminal 8C, the cover 3 is closed by the opening/closing motor 4, the limit switch 9 is closed, and the drive motor 2 and the drive motor of the rotary plate 5 and the output terminal 7b of the drive switch 7 are brought into conduction. .

Therefore, when the drive switch 7 is turned on to the output terminal 7b,
The drive motor 2 and the drive motor of the rotary plate 5 are energized,
The cutter 1 and rotating plate 5 rotate.

Also, when the drive switch 7 is turned on to the output terminal 7C, the timer 10b starts, and when a predetermined time has elapsed, that is, when no load is applied to the cutter 1, the drive switch 7 is turned on to the output terminal 7C. When the time from when cutter 1 stops rotating is exceeded, timer 1
0b closes the switch portion 10a, and conduction is established between the opening/closing motor 4 and the output terminal 8b of the opening/closing switch 8.

Therefore, if you turn on/off switch 8 to output terminal 8b,
The cover 3 is opened by the opening/closing motor 4, but the limit switch 9 remains open and the power to the drive motor 2 and the drive motor of the rotary plate 5 is cut off, so the alicyclic switch 7 is accidentally connected to the output terminal. The cutter 1 and rotating plate 5 do not rotate even if the cutter 1 and rotating plate 5 are put into the tray 7b.

However, even if the opening/closing switch 8 is applied to the output terminal 8b before the predetermined time is reached, that is, before the switch part 10a of the safety switch 10 is closed, the power to the opening/closing motor 4 will be cut off, so at that point In this case, the cover 3 does not open, but when the switch portion 10a of the safety switch 10 closes after a predetermined time has elapsed, that is, after the rotation of the cutter 1 has stopped, the cover 1 opens.

FIG. 3 shows the configuration of another embodiment of the present invention.
The same reference numerals as those in FIG. 1 indicate the same parts, and the safety switch includes a switch 11 consisting of a switch part 11a and a contact piece drive part 11b that drives the contact piece of the switch part 11a; It is composed of a rotation detector 12 consisting of a rotating body attached to the rotating shaft of the drive motor 2 and a detection body that detects the rotation of the rotating body, and a switch unit 11
The contact point a is connected between the output terminal 8b of the opening/closing switch 8 whose input terminal 8a is connected to the power source 6 and the opening/closing motor 4, and one terminal of the contact piece drive unit 11b is connected to the output terminal 7C of the drive switch 7. and the contact piece drive unit 11
The other terminal of b is connected to the output terminal of the rotation detector 12, and when the drive switch 7 is turned on to the output terminal 7C,
Even if the power supply to the drive motor 2 is cut off, while the drive motor 2 rotates together with the cutter 1 due to inertia, a rotation signal is output from the rotation detector 12, and the switch part 11a is held in an open state. When the rotation of the drive motor 2 stops and the rotation signal is no longer output from the rotation detector 12, the switch section 11a is closed by the contact piece drive section 11b.

In the embodiment configured in this way, when the drive switch 7 is left connected to the output terminal 7C and the open/close switch 8 is connected to the output terminal 8C, the cover 3 is closed by the open/close motor 4 and the limit switch 9 is activated. When closed, the drive motor 2 and the drive motor of the rotary plate 5 and the output terminal 7b of the drive switch 7 become electrically connected.

Therefore, when the drive switch 7 is turned on to the output terminal 7b,
The drive motor 2 and the drive motor of the rotary plate 5 are energized,
The cutter 1 and rotating plate 5 rotate.

Also, when the drive switch 7 is turned on to the output terminal 7C, the power to the drive motor 2 is cut off and the drive motor 2 is no longer driven, but when the rotation of the cutter 1 stops, that is, the rotation detector 12 detects the rotation. When the signal is no longer output, the switch part 11a closes, and the opening/closing motor 4 and the output terminal 8b of the opening/closing switch 8 become electrically connected.

Therefore, if you turn on/off switch 8 to output terminal 8b,
The cover 3 is opened by the opening/closing motor 4, but since the limit switch 9 remains open and the power to the drive motor 2 and the drive motor of the rotary plate 5 is cut off, the drive switch 7 is accidentally connected to the output terminal 7b. The cutter 1 and rotating plate 5 do not rotate even if the cutter 1 and rotating plate 5 are put into the machine.

However, before the rotation of the cutter 1 stops, i.e.
Even if the open/close switch 8 is turned on to the output terminal 8b before the switch part 11a of the safety switch is closed, the power to the open/close motor 4 will be cut off, so the cover 3 will not open at that point, but the rotation of the cutter 1 will stop. When the safety switch stops and the switch section 11a of the safety switch closes, the cover 1 opens.

Effects of the Invention As explained above, according to the present invention, even if the on-off switch is inserted into the cover opening terminal while the cutter is rotating immediately after the power to the drive motor is cut off, the on-off switch will not work while the cutter is rotating. The cover will not open until the safety switch shuts off the power to the opening/closing motor and the cutter stops rotating, causing material to be cut, water, etc. in the rotary pan to spill out and cause damage to the cutter mixer and its surroundings. There is an advantage that there is no need to worry about soiling the work tool or accidentally inserting the hand into the rotating tray with the cover open, causing serious accidents such as cutting off the hand.

[Brief explanation of the drawing]

FIG. 1 shows the country of construction of a conventional cutter mixer, and FIGS. 2 and 3 show the country of construction of the embodiment of the present invention. 1... Cutter, 2... Drive motor,
3...Cover, 4...Opening/closing motor, 5
... Rotating plate, 8 ... Opening/closing switch, 1
0... Safety switch, 11... Switch, 12... Rotation detector.

Claims (1)

[Scope of utility model registration request] In the cutter mixer, which cuts the object by rotating the cutter and the rotating plate by a drive motor with the cutter and the rotating plate containing the cut object covered with a cover, the cover is An opening/closing motor that opens and closes, an opening/closing switch that controls the opening/closing motor, and an opening/closing switch connected between the opening/closing motor and the opening/closing switch, even if the opening/closing switch is input to a cover opening terminal while the cutter is rotating, A cutter mixer comprising a safety switch that cuts off power to the opening/closing motor to prevent the cover from opening.