JPS601401A - Stuffer - Google Patents

Abstract

PURPOSE:To easily operate a stuffer while prevent its hazard caused by misoperation, by arranging a three-way solenoid valve in a pipe line communicating from a pressure tank to a cylinder. CONSTITUTION:A three-way solenoid valve 7 is provided in a pipe line communicating from a pressure tank 5 to a cylinder 3. Compressed air delivered into the cylinder 3 forces a piston 4 to be lifted to extrude prepacked meat from a nozzle. The meat is packed to a sausage because a casing such as the sheep intestines is mounted to the nozzle. A compressor 1, in which a pressure switch 6 is turned on in an ON-state by decreasing a pressure in the pressure tank 5, is restarted to supply compressed air to the pressure tank. If the meat in the cylinder 3 is completely extruded, a manually operated switch 8 is turned off. In this way, the three-way solenoid valve 7 operates to communicate a pipe line, which discharges the compressed air in the cylinder 3 to the atmosphere, and discharge the compressed air into the atmosphere. Accordingly, a hazard caused by misoperation can be prevented by decreasing the pressure applied to the cylinder through easy operation of switching off.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stuffer safety device using compressed air or compressed gas as a driving source.

Conventionally, this stuffer has a structure in which compressed air or compressed gas is sent directly from the pressure tank to the cylinder, and when the pressure in the cylinder is to be lowered, the pressure regulating valve must be manually opened. . Furthermore, this type of stuffer is often used in factories and is not equipped with the safety device of the present invention because it requires a dedicated person to handle it. In the market, manual stuffers are used, but there is no demand for stuffers with a drive source because they require a large operating knob and are difficult to operate. However, by having a driving source,
It must be avoided that handling is troublesome and dangerous. After using the stuffer, it is cleaned from a hygienic perspective to ensure that the meat remaining in the cylinder does not rot.
Particularly at this time, it is necessary to ensure that no danger occurs due to operational errors.

The purpose of the present invention is to simplify the operation and to prevent danger even if an incorrect operation is performed during work.

In the present invention, a three-way solenoid valve is installed in the compressed air or compressed gas pipeline from the pressure tank to the 7 cylinder, and the pressure built up in the cylinder is lowered by turning off the switch. . Furthermore, even if you forget to turn off the switch, the switch is turned off when you try to remove the lid, thus preventing any danger. .

Examples will be described below with reference to the drawings. FIG. 1 is a diagram showing the relationship between the components of the present invention, and l indicates a compressor for producing compressed air, which is a driving source for the stuffer 2. In FIG.

3 is a cylinder in which meat is stuffed, and a piston 4 is attached to push out the meat.

5 is a pressure tank that stores the compressed air produced by the compressor 1. 6 is a pressure switch for keeping the pressure in the pressure tank constant, and is set to start the compressor 1 at, for example, 3 atmospheres and stop when it reaches 4 atmospheres. 7 is a three-way solenoid valve, which can be switched as follows by a manual switch 8 and a limit switch 9.

When both switches are ON, the compressed air in the pressure tank 5 is switched to discharge into the cylinder 3 through the discharge pipe 10, and when the switches are OFF, the pipe line is switched so that the compressed air in the cylinder 3 is released to the atmosphere. It is set. FIG. 2 is an electrical circuit diagram for operating the above-mentioned components, and 11 indicates a power switch for the compressor l. The manual switch 8 has a self-illuminated structure and lights a neon lamp 12. The limit switch 9, which is connected in series with the manual switch 8, is installed adjacent to a lock rod 14 that hooks and fixes the lid 13 of the cylinder 3 onto the notch 3/L of the cylinder 3, as shown in FIG. It is turned on and off by the vertical movement of the position detection rod. The position detection rod is maintained in a vertical state by a kite 17 disposed in a pipe 16. The guide 17 is securely fixed by a screw 18. The position detection stick is the detection part 15
The E-ring 18 is constantly pressed upward by the compression coil spring D installed between cL and the guide 17, and is used to prevent the E-ring 18 from being removed.
is firmly attached. The lower end 15b corresponds to a lever portion 9α of the limit switch 9.

The system has the above-mentioned configuration, and its operation will be described next. First, when the power switch (2) is turned on, since the pressure tank 4 is initially empty, the pressure switch 6 is in the ON state and the compressor 1 is started. When the pressure in the pressure tank 5 reaches 4 atmospheres, the compressor 1 switches the pressure switch 6 to OFF.
It becomes FF and stops. Next, when the manual switch 8 is turned on, the limit switch 9 completely transfers Bi3 to the cylinder 3.
When installing, push the detection part 15a of the position detection rod by twisting the lock rod 14 into the notch 3α,
Since the limit switch 9 is turned on at the lower end 15b, the three-way solenoid valve 7 operates, and the pipe line from the pressure tank 5 to the cylinder 3 is opened, and compressed air is discharged to the cylinder 3. The compressed air discharged into the cylinder 3 is transferred to the piston 4
Push up the pre-packed meat into the nozzle (not shown)
push it out. The nozzle is equipped with a cussing made of sheep intestines, etc., so the meat is stuffed into the intestines. When the pressure in the pressure tank 5 drops, the compressor 1 restarts and replenishes the pressure tank with compressed air because the pressure switch 6 goes into the ○N state. When the meat in the cylinder 3 has finished coming out, first turn off the manual switch 8. The three-way solenoid valve 7 operates, and a pipe is created to exhaust the compressed air in the cylinder 3 to the atmosphere, thereby exhausting the compressed air to the atmosphere. Next, turn off the power switch f. As explained above, according to the present invention, a pressure machine can be connected to a switch ONX O with a simple configuration.
It is easy to handle and can be used in FF operation, and at the same time, it can prevent danger from erroneous operation when attempting to open the lid under pressure.

Further, even when a compressed gas cylinder is used as the drive source, if the secondary side pressure is set to 4 atmospheres, the pressure tank described above is simply replaced with a compressed gas cylinder, and the same effect can be obtained.

There are variations to the method of detecting the position of the lid, such as using a proximity switch, but other than the condition of detecting the position of the lid, this is a method to prevent the lid from popping out due to damage to the cylinder notch. There isn't.

For example, installing a limit switch for the handle of the cock that controls meat release can prevent pressure from being applied for a long time, but in the unlikely event that the notch in the cylinder breaks and the lid pops out. can't deal with it. Also, when the handle is closed, the air in the cylinder is removed, so if the cylinder capacity is larger than the compressor tank capacity when the handle is opened or closed during work, the meat will not come out immediately even after opening the cock. This inconvenience arises. If the tank capacity 'tk is increased, the overall shape becomes larger, which is a disadvantage.

According to the present invention, since the three-way solenoid valve is disposed in the conduit from the pressure tank to the cylinder, the pressure applied to the cylinder can be lowered by the simple action of turning off the switch. Additionally, the lamp lights up to indicate that the electric circuit has been opened, allowing users to quickly turn off the switch after use. This prevents unnecessary high pressure from being applied to the 7-liner, prevents the risk of forgetting that pressure is applied and trying to open the lid, and helps prevent deterioration of the sealing part of the machine.

Furthermore, even if you forget to turn off the switch, a limit switch is activated in conjunction with the action of opening the wax to reduce the pressure, thereby preventing danger from incorrect operating procedures. do.

Furthermore, even if the lid is not closed or the lid is closed half-heartedly due to an operational error, the safety device will not operate, thereby preventing dangers such as the piston popping out or the lid popping out. As explained above, when the high voltage machine is switched to
It is easy to handle as it can be used with only N and OFF, and it prevents danger to the operator.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing the relationship between the constituent parts of the stuffer according to the present invention. FIG. 2 is an electrical circuit diagram for operating the components. FIG. 3 is a schematic diagram showing the relationship between the limit switch sections. l is a compressor, 2 is a stuffer, 3 is a cylinder, 4 is a piston, 5 is a pressure tank, 6 is a pressure switch,
7 is a three-way solenoid valve, 8 is a manual switch, 9 is a limit switch, 13 is a lid, the tail is a lock rod, and 15 is a position detection rod. Patent applicant name Hitachi Koki Co., Ltd.

Claims (1)

[Claims] / In a stuffer using IJJs for compressed air and compressed gas, a three-way solenoid valve is arranged in the compressor and the pipe line for discharging the compressed air and compressed gas from the gas cylinder to the cylinder. A stuffer characterized by: λ In addition to the operating switch that operates the three-way solenoid valve, a limit switch is connected in series with the operating switch so as to turn on only when the stuffer lid is closed. Staffa.