JPS5845595Y2 - Weighing device for food plating machine - Google Patents

Description

[Detailed description of the invention] The present invention relates to a weighing device for a food plating machine that puts a predetermined amount of food onto food, and in particular protects the weighing device from sudden changes in load when plating food. It is about the structure for.

When serving a predetermined amount of food on tableware as a weighing device for this type of food plating machine, food is supplied to a weighing hopper that has an opening/closing mechanism at the lower end, and a balance-type weighing mechanism that supports this weighing hopper. weighs the food fed into the weighing hopper, stops feeding the food when it reaches a predetermined amount, and then opens the opening/closing mechanism of the weighing hopper to weigh the predetermined amount of food fed into the weighing hopper. There is a system in which food is placed on tableware waiting below, but in this case, the load on the weighing mechanism changes rapidly when the opening/closing mechanism is activated, so the food supply is detected and the opening/closing mechanism is controlled. In order to do this, a balance device is added to a detector installed in the weighing mechanism, such as a load converter or a switch, which may result in inaccurate weighing or damage to the detector.

The present invention has been developed in view of these points, and aims to prevent a weighing mechanism from being added to the weighing mechanism by fixing the weighing mechanism during operation of the opening/closing mechanism.

Next, one embodiment of the present invention will be described based on the drawings.

Figures 1 and 2 show a rice serving machine 1 as a food serving machine, and the rice serving machine 1 is provided with a plate feeding device 2 as a pair of food feeding devices at the upper center thereof.

Each plate feeding device 2 consists of a hopper-shaped rice storage section 3 for storing rice cooked in a rice cooker or the like, and a hopper-shaped loosening feeding chamber 4 provided below the rice storage section 3. The rice fed into the storage section 3 from above is loosened in the feeding chamber 4 and then fed downward to ensure a good presentation condition later and to facilitate weighing as will be described later. ing.

That is, in the upper part of the loosening chamber 4, a pair of loosening blades 5, 6 are provided adjacent to the lower end opening of the rice storage section 3.
are horizontally suspended in parallel with each other at slightly different levels in the vertical direction, and at the bottom, feeding blades 7, which are slightly smaller than the loosening blades 5 and 6, are horizontally suspended in parallel with each of the loosening blades 5 and 6. There is.

Then, these loosening blades 5,5 and feeding blades 7
is formed by installing a large number of blade rods radially on the outer circumferential side of a cylindrical drum, and by a drive mechanism (not shown), the upper loosening blade 5 moves clockwise, as shown in FIG.
The lower loosening blade 6 rotates counterclockwise, and the feed blade 7 rotates clockwise, and the rotation speeds of the upper loosening blade 5, lower loosening blade 6, and feed blade 7 are set in stages in this order. The rice fed from the lower end opening of the rice storage section 3 to the upper part of the loosening feed chamber 4 is supported by a pair of loosening blades 5.6, and the rotation of the loosening blades 5.6 is Then, between the stripping blades 5 and 6, a large number of blade rods are used to scrape off the material and loosen it into a uniform state while sending it downward, and then the blade of the feeding blade T is used to loosen it into a hopper shape and open the lower end of the feeding chamber 4. It is designed to continuously supply water from the bottom to the bottom.

The outer surface (the upper button and the lower part in FIG. 2) of each of the above-mentioned loosening feed chambers 4 is formed of a transparent acrylic plate 8, so that the loosening state of the rice can be monitored, and the above-mentioned temporary storage A rice supply amount adjustment plate 9 parallel to the above-mentioned pick-up blade 6 is pivoted at the lower end and side portion of the portion 30, and the adjustment plate 9 is rotated to change the opening area of the lower end opening of the rice storage portion 3. As a result, the amount of rice supplied to the loosening feed chamber 4 can be adjusted according to the hardness or softness of the rice, that is, the amount of moisture, and the loosened state of the rice can be maintained constant.

A weighing device 11 is provided below the loosening and feeding chamber 4 of each plate supplying device 2 mentioned above.

This weighing device 11 includes a first shutter mechanism 12 provided close to the lower end of the above-mentioned feed chamber 4, and a second shutter mechanism as an opening/closing mechanism provided below the first shutter mechanism 12. 13. This second shutter mechanism 1
3 and a weighing mechanism 14 that is integrally provided.1 The first shutter mechanism 12 is configured such that a shutter (not shown) advances and retreats from the lower end opening of the e1 loosening feeding chamber 4 using an air cylinder 15 to loosen the loosening feeding chamber 4. Open and close the opening of the
The second shutter mechanism 13 is provided at the lower end of the cylindrical weighing hopper 16 that communicates with the lower end opening of the scraping chamber 4 via the first shutter mechanism 12. Similarly to the shutter mechanism 12 of No. 1, a shutter (not shown) moves forward and backward into the lower end opening of the weighing hopper 16 using an air cylinder 17 to open and close the opening of the weighing hopper 16.

As shown in FIGS. 3 and 4, the weighing mechanism 14 is of a balance type, and a substantially rectangular weighing frame 21 supporting the second shutter mechanism 13 is supported by a support shaft 22. It is rotatably attached to the frame 1a in the weighing machine 1, and a balance weight 24 is attached to the rear of the weighing frame 21 (on the right side in Figure 3) via a weighing platform lever 23, and a balance weight 24 is attached to the weighing frame 21 via a weighing platform lever 23. Front of 21 (left side of Figure 3) 5)
- A substantially U-shaped operating lever 25 is attached to the side part, and a load converter 26 for this operating lever 25 is connected to the rice serving machine 1.
Frame 1. It is attached to L via a mounting bracket 2T.

Then, this weighing mechanism 14 is located in front of the weighing frame 21 (
When a predetermined load is applied to the (left side in FIGS. 1 and 3), the weighing frame 21 rotates counterclockwise as shown in FIG. ．． Press
Thereby, the first shutter mechanism 12, the second shutter mechanism 13, etc. are controlled.

The support shaft 22 of the weighing mechanism 14 is attached to the weighing frame 21 via a pair of outer bearings 28 and a pair of inner bearings 29 and a support stand 3, as shown in FIG.
The rotational load of the weighing frame 21 attached to the frame 1& through the 0 is reduced to improve weighing accuracy.

Further, 31, 32, and 33 are locking edges for the second shutter mechanism 13, respectively.

A fixing mechanism 41 is disposed on the weighing platform lever 23 of the weighing mechanism 14.

As shown in FIG. 5, this fixing mechanism 41 has a frame 42 that intersects the weighing table lever 23 at a substantially right angle and is attached to the frame 1c in the rice serving machine 1, and is provided vertically on this frame 42. The weighing platform lever 23 is loosely inserted into the elongated hole 43, and a lock lever 44 for the top surface of the weighing platform lever 23 is rotatably attached to the side surface of the frame 42 with a support shaft 45. The tip of a plunger 47 of a lunoid 46 as an electromagnetic device attached to the side surface of the frame 42 is attached to one end with a support shaft 48, a weight 49 is attached to the other end, and A stopper 50 is provided at the bottom of the elongated hole 43 of the frame body 42 to restrict the movement of the base lever 23 in the downward direction, that is, the clockwise rotation shown in FIG. The stopper 51 for the upper surface is the frame body 4
2 is provided to restrict the counterclockwise rotation of the lock lever 440, thereby restricting the upward movement of the weighing platform lever 23, that is, the counterclockwise movement toward FIG.

Then, this fixing mechanism 41 is connected to each stopper so
, s i button and the lock lever 44 regulate the rotation range of the weighing platform frame 21 via the weighing platform lever 23, and the solenoid 46 is controlled by the load converter 26.
is controlled, and when the second shutter mechanism 13 opens and closes, the solenoid 46 is energized and attracts the plunger 47 in the membrane direction, and the lock lever 44 rotates clockwise to move the weighing platform lever 23 to the stopper 50. This locks the weighing mechanism 14, and when the solenoid 46 is de-energized, the lock lever 44 immediately locks the weight 49.
The weighing platform lever 23 rotates counterclockwise due to the biasing force of
, thereby releasing the fixation of the weighing mechanism 14.

Moreover, a tableware feeding device 61 is provided outside (upper and lower in FIG. 2) of each of the plate feeding devices 2 and each of the weighing devices 11 in correspondence therewith.

Each tableware supplying device 61 includes a rice serving machine 10 and flat portions 1 on both sides.
A circular hole 62 is bored in the hole 62, and a plurality of, for example, four rod-shaped caser guides 63 are erected around the circular hole 62, thereby forming a tableware storage section 64. Between the tableware storage portion 640 and the caser guide 63, a large number, for example, 90 bowls 65 as tableware are supported in a stacked state.

Then, the tableware supplying device 61 is connected to the tableware storage section 64.
A tableware feeding mechanism (not shown) is provided below, and this tableware feeding mechanism sequentially transfers a large number of bowls 65 stored in the tableware storage section 64 to the weighing hopper 16 of the weighing device 11, starting from the lowest one. It is designed to be supplied downward.

Disgusted by this poor structure, rice cooked in a rice cooker or the like is stored in the rice storage section 3 of the plate feeding device 2, and a large number of bowls 65 are piled up in the tableware storage section 64 of the tableware feeding device 610. When the bowl 65 at the lowest end in the tableware storage section 64 is stored in this condition and operated, the lowermost bowl 65 in the tableware storage section 64 is supplied to the lower part of the weighing hopper 16 of the weighing device 11 by the tableware supply mechanism (not shown), and then the plate supply is carried out. Each lifting blade 5, 6 of device 2
The rice feeding blades 7 are driven, and the rice in the rice storage section 4 is loosened by the blade rod between each of the separating blades 5 and 6, and then falls downward.

At this time, the inside of the loosening feed chamber 4 is monitored through the transparent acrylic plate 8, and the rice supply amount adjusting plate 9 is moved forward and backward into the lower end opening of the rice storage section 3 in order to keep the loosened state of the rice constant. As a result, the amount of rice supplied to each picker blade 5.6 is adjusted depending on the hardness and softness of the rice.

That is, when the rice is hard due to low moisture content, the rice does not easily fall off, so the rice supply amount adjusting plate 9 is moved back, the opening area of the opening is widened, and the amount of rice supplied is increased. (If the rice is soft, the rice tends to fall off easily, so move the rice supply amount adjustment plate 9 forward, narrow the opening area of the opening, reduce the amount of rice supplied, and maintain the loosened state of the rice and the amount of rice supplied.) Try to keep it in this condition.

Then, the rice that has been loosened to a constant state by the rice supply amount adjusting plate 9'j=- and each loosening blade 5.6 is passed through the loosening blade 7 from the lower end opening of the feeding chamber 4 to the open state. 1
The liquid is supplied through the shutter mechanism 12 onto the shutter of the second shutter mechanism 13 in the closed state, that is, into the weighing hopper 16.

When the rice supplied into the weighing hopper 16 reaches a predetermined weight, the weighing frame 21 of the weighing mechanism 14 supporting the weighing hopper 16 and the second shutter mechanism 13 is moved to the state shown in FIG. The weighing platform lever 23 is the fixing mechanism 4
The actuating lever 25 rotates clockwise from the state where it is locked to the stopper 50 of No.
When the load converter 26 detects a predetermined load,
The solenoid 46 of the fixing mechanism 41 is energized and the lock lever 44 rotates clockwise as shown in FIG.
0 to fix the weighing mechanism 14, and at the same time, the driving of the loosening blades 5 and 6 buttons and the feeding blade 7 is stopped, and the shutter of the first shutter mechanism 12 is advanced by the air ring 15 to loosen it. The lower end opening of the feeding chamber 4 is closed, and then the shutter of the second shutter mechanism 13 is moved back by the air cylinder 11, the lower end opening of the weighing hopper 16 is opened, and the bowl 65 with a predetermined amount of rice waiting below. It is served on.

At this time, when the load converter 26 detects a predetermined load, the solenoid 46 is immediately energized and the lock lever 44 is
As a result, the weighing frame 21 is rotated clockwise via the weighing platform lever 23 as shown in FIG. The weighing frame 2 can be opened by opening the second shutter mechanism 13 without applying an unnecessary load or an excessive load due to a failure of the first shutter mechanism 12 or the like.
1 will not vibrate and cause a balance to be applied to the load transducer 26, or distortion will occur in each part of the precisely manufactured weighing mechanism 14.

Then, the rice bowl 65 with rice served in it is shown in Figure 1 p and 2
It is carried out to the front carrying out table 72 by the carrying out conveyor 71 shown in the figure.

When the food is served, the shutter of the second shutter mechanism 13 is returned to the closed state by the air cylinder 17, and the shutter of the first shutter mechanism 12 is returned to the closed state by the air cylinder 1γ, and then the shutter is fixed. Mechanism 41
The solenoid 46 is de-energized, whereby the lock lever 44 is rotated counterclockwise in FIG. 5 by the weight 49, and the fixation of the weighing mechanism 14 is released.

At this time, since the weighing mechanism 14 is fixed by the fixing mechanism 41 when the second shutter mechanism 13 is closed, the weighing frame 21 may vibrate and a balance may be applied to the load converter 26 or the precision (In addition, the lock lever 44 of the fixing mechanism 41 is operated by the excitation of the solenoid 46 after the second shutter mechanism 13 returns to the closed state.) When the weighing mechanism 14 is released, the weighing mechanism 14 is immediately released by the biasing force of the weight 49, so that the operation of the weighing mechanism 14 is not hindered.

In this embodiment, the fixing mechanism 41 is provided to the weighing platform lever 23 of the weighing mechanism 14, but the fixing mechanism 41 is not limited to this, and may be attached to other parts of the weighing mechanism 14, such as the weighing platform frame 21 or the operating lever 25. It may also be provided.

As described above, according to the present invention, a fixing mechanism is provided in the balance-type weighing mechanism of a weighing device of a food serving machine that serves a predetermined amount of food on tableware, and this fixing mechanism allows the weighing mechanism to be integrated with the weighing mechanism. Since the weighing mechanism is fixed when the hopper opens and closes, the weighing mechanism will not be damaged by the balance due to the opening and closing operations of the weighing hopper, and the weighing accuracy will not be affected.Furthermore, as a fixed mechanism, Rather than attaching the electromagnet device directly to the weighing mechanism, the weighing mechanism is fixed by rotating the lock lever with the electromagnet device, and a weight is attached to the lock lever and the lock lever is unlocked using this weight. By biasing the weighing mechanism in the direction, it is possible to prevent the operation of the weighing mechanism from being hindered by residual magnetism or mechanical resistance of the electromagnetic device, thereby preventing poor weighing accuracy.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a side view of a rice serving machine as a food serving machine, Fig. 2 is a plan view thereof, and Fig. 3 is a partially cut away weighing mechanism. FIG. 4 is a partially cutaway front view of the weighing mechanism, and FIG. 5 is a rear view of the fixing mechanism. 1... Rice serving machine as a food serving machine, 2...
...Plate feeding device as a food feeding device, 11...
... Weighing device, 13... Second as an opening/closing mechanism
shutter mechanism, 14...weighing mechanism, 16...
...Weighing hopper, 41-...Fixing mechanism, 44
... Lock lever 46 ... Solenoid as an electromagnetic device, 49 ... Weight, 65 ...
...a bowl as tableware.

Claims (2)

[Scope of utility model registration request] (1) In dishes for serving a predetermined amount of food on tableware, there is a tableware feeding device that stores the food and feeds the food downward, and a measuring device that is disposed below the food feeding device and has an opening/closing mechanism at the lower end. A food tray comprising: a hopper; a balance-type weighing mechanism that supports the weighing hopper and controls the opening/closing mechanism; and a fixing mechanism that fixes the weighing mechanism when the opening/closing mechanism is opened/closed. Weighing device for attaching machine. (2) The above-mentioned fixing mechanism includes an electromagnet device, and a j60 lock lever that rotates due to excitation of the electromagnet device to fix the above-mentioned weighing mechanism, and the lock lever rotates in a direction opposite to the direction of rotation due to excitation of the electromagnet device. and a biasing weight, and when the electromagnetic device is de-energized, the lock lever is rotated in the fixing release direction by the weight to immediately release the fixing of the weighing mechanism. A weighing device for a food plating machine according to claim 1 of the utility model registration claim.