JPH024012Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention automatically and constantly transfers prepared foods, paste products, and other pasty plastic materials, such as salad and hamburger ingredients, to trays on a conveyor belt that continuously moves them. This invention relates to a device for cutting out amounts.

[Conventional technology]

BACKGROUND ART Conventionally, as a quantitative cutting device for food, a device configured to supply a pasty plastic material from a pressure pump to a filling mechanism equipped with a reciprocating cylinder and a reciprocating rotary valve has been generally used. A hose or the like is connected to the outlet of the filling mechanism, and the system fills the tray on the belt conveyor with the material and sends out the product.

[The problem that the idea attempts to solve]

However, because conventional filling devices cannot properly handle viscous materials, it is difficult to cut out a certain amount at a time, and the cutting itself is not always smooth.
Furthermore, when cutting hamburger material, etc., there remains the difficulty of cutting the material into a fixed flat shape. In addition, after cutting, the material may drip out of the filling device, making it impossible to equalize the amount of material.
Furthermore, there are also problems such as the inability to standardize the product shape.

Therefore, an object of the present invention is to enable automatic filling of a paste-like plastic material such as a salad into a tray on a belt conveyor in a fixed amount and without dripping after cutting.

[Means to solve the problem]

In order to achieve the above object, the quantitative cutting device of the present invention includes a reciprocating rotary valve that communicates with the pressure feeding supply path of the pasty plastic material, and a material press-fitting cylinder that is disposed downstream of the reciprocating rotary valve. Prepare,
The reciprocating rotary valve has a rotary shaft that can alternately connect a material charging space to a pressure feeding supply path side and a flow path side to the material press-in cylinder by forward and reverse rotation, and is interlocked with rotation of the rotary shaft. a reciprocating cylinder that sucks material into the material charging space and pushes it out toward the material press-fitting cylinder, the material press-fitting cylinder includes a piston that cuts out a fixed amount of material flowing from the reciprocating rotary valve, and the piston has an inflow port communicating with the downstream flow path of the reciprocating rotary valve on the circumferential surface, and also forms a material passage with a discharge port at the lower end in the stroke direction, and further has a material cut out at the lower end of the material press-fitting cylinder. A shutter having an opening for use is provided so as to be able to reciprocate across the flow path cross section, and a rotary spool valve for cutting and discharging material is rotatably arranged below the shutter, and the shutter and rotary spool valve are driven by the same drive. a synchronous relationship in which the rotary spool valve is rotated so that the discharge hole of the rotary spool valve communicates with the outside when the shutter reciprocates and its opening is located in the flow path in the material press-in cylinder; is provided between these shutters and the rotary spool valve, and the passage area of the opening of the shutter is smaller than that of the discharge hole of the rotary spool valve.

[Effect]

In the present invention, material is intermittently supplied to a material press-fitting cylinder by a reciprocating rotary valve and a reciprocating cylinder, and the material is cut out by a shutter and a rotary spool valve that have an interlocking relationship. At this time, the material flowing toward the rotary spool valve through the opening of the shutter is throttled when passing through the opening because the flow path area of the opening of the shutter is smaller than the discharge hole of the rotary spool valve. Reduce the flow pressure of material towards the hole. the result,
When the flow path is closed, the residual pressure of the material also decreases,
This prevents the material from dripping after cutting.

〔Example〕

Hereinafter, the features of the present invention will be specifically explained with reference to embodiments shown in the drawings.

FIG. 1 is a front view showing the entire pressure pump 1 and the quantitative cutting device of the present invention, and FIGS. 2 to 5 show details of the main parts.

The reciprocating rotary valve 5 has a material charging space 12 inside.
The casing 13 is constructed by installing a partially notched rotary shaft 14 that reciprocates or swings freely in the casing 13, and the casing 13 further has a left opening and a right opening as an inlet 3, respectively. It communicates with the material press-fitting cylinder 7. Further, a reciprocating cylinder 4 is disposed above the rotary valve 5, and the material suction space 15 formed in the cylinder is alternately connected to the inlet 3 by the reciprocating motion (oscillation) of the rotary shaft 14. and communicates with the material press-fitting cylinder 7.

With the above configuration, the material pressure-fed to the injection port 3 is rotated counterclockwise of the reciprocating rotary valve 5 and sucked into the suction space 15 in the reciprocating cylinder 4.
The material sucked in by the clockwise rotation of the reciprocating rotary valve 5 and the lowering of the reciprocating cylinder 4 is then brought into the material press-in cylinder 7 through the cylindrical space 12 in the casing 13.

The material is then passed through a passage 8 opened in the piston 16 into the material press-fitting space 6, and the shutter 9 is driven to an open state by the shutter drive mechanism 17 interlocked with the reciprocating rotary valve 5.
You can reach inside. Furthermore, by opening the rotary spool valve 10 which is connected and cooperates with the shutter 9, a constant amount of water is continuously and uniformly distributed in the tray on the belt conveyor 18 disposed below the rotary spool valve 10. It can be filled with a paste-like plastic material such as a quantity of salad.

Note that the piston 16 is a piston drive mechanism 16a.
Although it is possible to move up and down inside the material press-in cylinder in conjunction with the rotary valve 5, in this embodiment, it is always fixed at the position shown in FIG. The figure also shows a belt conveyor lifting mechanism used when making hamburger steaks instead of salads. It consists of an attached lifting rod 20.

Next, FIGS. 3, 4, and 5 show the structures of the shutter 9 and rotary spool valve 10 together with the shutter drive mechanism 17 in detail. In the figure, 21 is a horizontal rod that moves laterally by a required drive mechanism, 22 is an L-shaped lever that is rotatably supported by the main frame 23 at its midpoint and connected to the horizontal rod 21 at one end, and 24 is the L-shaped lever. This is a reciprocating rod that has one end connected to the other end of the mold lever 22 and the other end holding the base end of the shutter 9, and the material passes through the center of the shutter 9 which is reciprocated horizontally by the reciprocating rod. An opening 25 is opened for use, and a pivot portion 27 is provided on the lower surface of the tip to which a first connecting rod 26 connected to the rotary spool valve 10 is pivotally attached. The rotary spool valve 10 has a vertically elongated discharge hole 10a penetrating in the diametrical direction to serve as a material passage, and is rotatably attached to the lowermost end of the material press-in cylinder 7. By pivotally connecting one end of the second connecting rod 28 integrally formed with the rotary spool valve 10 to the first connecting rod 26, the rotary spool valve 10 is interlocked with the shutter 9 to synchronously fill the tray with material. can be done. That is, as shown in FIG.
The opening 25 is located in the flange 7a of the material press-fitting cylinder 7, and the discharge hole 10a of the rotary spool valve 10 is oriented horizontally, blocking the filling passage. When the shutter drive mechanism 17 is driven from this state, the shutter 9 is moved to the left as shown in FIG.
With this movement, the rotary spool valve 10 is rotated counterclockwise in the drawing via the first connecting rod 26 and the second connecting rod 28, so that the discharge hole 10a becomes approximately vertical, and the reduced pressure filling space 11 is connected to the outside. The tray is then filled with material from the discharge hole 10a. After a certain amount of material is filled, the shutter 9 moves from the position shown in FIG. 4 to the position shown in FIG. The valve 10 also closes the material flow path and one step of filling the material tray is completed without causing dripping, and subsequent material filling can be performed by similar operations.

Here, the opening area of the opening 25 of the shutter 9 is:
Since the opening area of the discharge hole 10a of the rotary spool valve 10 is smaller than the opening area of the discharge hole 10a of the rotary spool valve 10, the residual pressure of the material in the reduced pressure filling space 11 becomes smaller than the residual pressure in the plastic material press-fitting space 6 when filling the material. . That is, when the material is charged into the reduced-pressure filling space 11, the flow pressure of the material decreases due to the restriction when the material passes through the opening 25 having a small flow path area. For this reason,
There is an advantage that the material dripping of the rotary spool valve 10 can be done more reliably.

Moreover, 29 is an umbrella-shaped uniform diffuser that hangs concentrically in the passage 8 below the piston 16, and serves to homogenize the material when filling the material.

Regarding the operation of the fixed-quantity cutting device having the above configuration, as shown in FIG. The material in the reciprocating cylinder 4 is fed through the reciprocating rotary valve 5 into the piston 1 by reversing the rotary shaft 14.
The material is fed into the plastic material press-fitting space 6 at the lower part of the material press-fitting cylinder 7 through a passage 8 opened in the plastic material press-fitting cylinder 7 .

At this time, the material fed from the passage 8 is homogenized by the uniform diffuser 29. Then, when a certain amount of material has been fed into the plastic material press-fitting space 6 with the rotation of the rotary shaft 14, if the shutter drive mechanism 17 is driven by a required limit switch or the like, the shutter is activated as described above. The opening 25 of the rotary spool valve 9 and the discharge hole 10a of the rotary spool valve 10 cooperate to form a material flow path, and the material can be filled onto the lower belt conveyor 8 from the discharge hole 10a. When a new material is to be fed into the reciprocating cylinder 4, the shutter drive device 17 causes the shutter 9 and rotary spool valve 10 to close the flow path of the material, completing one process. At this time, as mentioned above, the residual pressure of the material in the reduced pressure filling space 11 is configured to be smaller than that in the plastic material press-fitting space 6, so that sagging after the material is cut out is more reliably prevented. Ru.

Further, when the pasty plastic material is a hamburger steak, the belt conveyor lifting mechanism is operated to raise the upper horizontal portion 18a of the belt conveyor 18,
The hamburger material is flattened between the belt conveyor 18 and the rotary spool valve 10. In the case of hamburgers, the belt conveyor 18 is driven intermittently.

Further, the discharge hole 10a of the rotary spool valve 10
The direction when the valve opens can be freely changed by appropriately adjusting the length of the first connecting rod 26, and a good material filling form can be obtained depending on the properties of the filling material, the moving speed of the filling tray, etc. It is something that can be done.

[Effect of idea]

As explained above, in the quantitative cutting device of the present invention, material is intermittently supplied to the material press-in cylinder by the reciprocating rotary valve and the reciprocating cylinder, and The material is cut out. The material flowing toward the rotary spool valve through the opening of the shutter is throttled when passing through the opening because the flow path area of the opening of the shutter is smaller than the discharge hole of the rotary spool valve. Reduce the flow pressure of the material towards. Therefore, when the rotary spool valve is closed, the residual pressure of the material in the flow path is also reduced, and the material is prevented from sagging after being cut out. Therefore, since a certain amount of material is cut out and at the same time the occurrence of dripping can be suppressed, it is possible to always supply a product with a uniform shape, and it can be optimally used for food processing such as paste products.

[Brief explanation of drawings]

Fig. 1 is a front view showing the entire quantitative cutting device for pasty plastic material of the present invention, Fig. 2 is an enlarged explanatory view of the main parts of the device, and Fig. 3 is a partial cutaway of the shutter and rotary spool valve mechanism. FIG. 4 is a side sectional view showing the shutter and the rotary spool valve in an open state, and FIG. 5 is a bottom view showing the shutter drive mechanism, the shutter, and the rotary spool valve. 1...Pressure pump, 2...Pressure hose, 3...
Inlet, 4... Reciprocating cylinder, 5... Reciprocating rotary valve, 6... Plastic material press-fitting space, 7... Material press-fitting cylinder, 7a... Flange portion, 8... Passage, 9... Shutter, 10 ... Rotary spool valve, 10a ... Discharge hole, 11 ... Decompression filling space,
12... Material charging space, 13... Casing, 1
4...Rotary shaft, 15...Suction space, 16...
Piston, 16a... Drive mechanism, 17... Shutter drive mechanism, 18... Belt conveyor, 18a...
Upper horizontal section, 19...roller, 20...lifting rod,
21...Horizontal rod, 22...L-shaped lever, 23...Body frame, 24...Reciprocating rod, 25...Opening, 26...First connecting rod, 27...Pivot part, 28
...Second connecting rod.

Claims (1)

[Claims for Utility Model Registration] A reciprocating rotary valve communicating with a pressurizing supply path for a pasty plastic material, and a material press-in cylinder disposed downstream of the reciprocating rotary valve, the reciprocating rotary valve having a positive a rotary shaft that can alternately connect a material charging space to a pressure feeding supply path side and a flow path side to the material press-fitting cylinder by reverse rotation; a reciprocating cylinder that sucks and pushes the material toward the material press-in cylinder, the material press-in cylinder includes a piston that cuts out a fixed amount of material flowing from the reciprocating rotary valve, and the piston is located downstream of the reciprocating rotary valve. An inflow port communicating with the side flow path is provided on the circumferential surface, and a material passage is formed with a discharge port at the lower end in the stroke direction, and a shutter having a cutting opening is provided at the lower end of the material press-in cylinder. A rotary spool valve is provided so as to be reciprocally movable across the cross section of the road and rotatably arranged below the shutter for cutting and discharging the material, the shutter and the rotary spool valve are included in the same drive system, and the shutter is These shutters and the rotary spool valve have a synchronous relationship in which the rotary spool valve is rotated so that the discharge hole of the rotary spool valve communicates with the outside when the opening thereof is located in the flow path in the material press-in cylinder by reciprocating motion. , and the flow path area of the opening of the shutter is smaller than that of the discharge hole of the rotary spool valve. Device.