JPS5926256B2 - Filling nozzle of meat filling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a filling nozzle for a meat filling machine that fills a casing with raw meat such as roast ham, boneless ham, or pressed ham.

Generally, when filling a casing with a certain amount of green meat using a green meat filling machine, the tubular casing is fitted onto the filling nozzle connected to the filling port of the green meat filling machine and fixedly held on the outer periphery of the filling nozzle. After filling the tubular casing with a certain amount of meat that is extruded from the filling port, the openings at both ends of the tubular casing are tied together with fasteners. In order to prevent this and to discharge the air existing between the meat and the casing, the casing must be pulled and squeezed while filling the casing with the meat.

For this reason, the casing fixedly held on the outer periphery of the filling nozzle often comes off during the filling operation.

If the casing comes off from the filling nozzle in this way, the operation must be interrupted, especially in automatic green meat filling machines that automate the filling operation, which is a fatal defect.

In addition, in conventional green meat filling machines, the casing is fitted onto the filling nozzle and is fixedly held on the outer periphery of the filling nozzle, so the inner diameter of the casing is the same as the outer diameter of the green meat that is extruded from the filling nozzle. Therefore, the casing had to be pulled and squeezed with greater force during the filling operation, which also made the casing more likely to come off.

The present invention has been made to solve the above conventional problems, and provides a novel filling nozzle in which the end of the casing is held and fixed inside the tip opening of the filling nozzle.

That is, the filling nozzle of the present invention has a fixed claw provided inside the tip opening of the nozzle body, a movable claw divided into a plurality of parts facing the fixed claw, and a movable claw that is connected to the base end of the movable claw. An actuation arm that extends to the outer periphery of the nozzle body by passing through an opening provided between the fixed claw and the nozzle body, and a support part provided on the outer periphery of the nozzle body that tiltably supports the actuation arm. and an actuating device attached to the nozzle body that tilts the actuating arm about the support portion to press the movable claw toward or away from the fixed claw.

An embodiment of the present invention will be described below based on the drawings.

Reference numeral 1 denotes a nozzle body, which is detachably attached to a filling port 2 of a green meat filling machine.

(See FIG. 2) Reference numeral 3 denotes a cylindrical body attached to the tip of the nozzle body 1, and a fixing claw 5 is formed by providing several grooves 4 with a square cross section extending in the circumferential direction on the inner circumferential surface.

The cylindrical body 3 has four projecting pieces 6 arranged in series at 90 degrees in the circumferential direction on its rear side, and the projecting pieces 6 are bolted to a mounting piece 7 fixed to the tip of the nozzle body 1. 8 and attached to the tip of the nozzle body 1, and four openings 9 partitioned by protrusions 6 are formed between the nozzle body 1 and the cylindrical body 3 (see FIG. 3).

Reference numeral 10 denotes a movable claw, which has an arcuate cross section formed by dividing a thin cylinder inscribed in the cylindrical body 3 into four parts, and has a V-shaped cross section on its outer surface that engages with the V groove 4 of the fixed claw 5. It has protrusions 11 and is arranged opposite to the fixed claws 5, respectively.

An operating arm 12 is connected to the base end of each movable claw 10, and a wing piece 1 protruding on both sides is provided at the middle part of the operating arm 12.
3 is provided.

The actuating arm 12 extends outside the nozzle body 1 by passing through the opening 9, and has concave grooves 14 provided on the lower surface of the intermediate blade 13 projecting from the outer periphery of the nozzle body 1 at appropriate intervals in the circumferential direction. The actuating arm 12 is engaged with the protruding part 15, and is tiltably supported using the protruding part 15 as a fulcrum, and by the tilting of the operating arm 12,
A movable claw 1 arranged inside the tip opening of the nozzle body 1
0 is pressed against or separated from the fixed claw 5.

Further, as shown in FIG. 3, screws 16 are screwed onto both sides of the actuating arm 12 in front of the intermediate wing piece 13, and each actuating arm 12 is are attracted to each other and held in a fixed position, and deviation of each actuating arm 12 in the circumferential direction is limited by a pin 18 fitted into each protruding portion 15.

Reference numeral 19 denotes a sliding cam for tilting the actuating arm 12, and has a cam surface 20 on the inner surface of the cylinder, with which the rear end of the actuating arm 12 engages.

The sliding cam 19 is slidably fitted onto the base end of the nozzle body 1, and has a bar 21 fixed to its outer periphery and extending in the axial direction connected to the piston rod 23 of the air cylinder 22. It is designed so that it can be moved back and forth.

The air cylinders 22 consist of a pair, and are arranged diametrically opposite to each other on the outer periphery of the nozzle body 1, and their respective rear ends are connected to pins 24 erected on the nozzle body 1.

When the sliding cam 19 moves forward as shown by the imaginary line in FIG.
The end of the tubular casing 25 inserted into the tip opening of the nozzle body 1 is clamped and fixed between the fixed claw 5 and the movable claw 10.

In this state, the casing 25 is filled with a certain amount of meat M that is extruded from the filling port 2 through the nozzle body 1.

At this time, the movable claw 10 is also pressed radially outward by the green mass M pushed out from the nozzle body 1, so the pressing force of the movable claw 10 against the fixed claw 5 further increases, and the casing 25 is more strongly clamped and fixed. I will do it.

Incidentally, since the diameter of the casing 25 is approximately the same as or slightly smaller than the inner diameter of the nozzle body 1, the green meat M extruded from the nozzle body 1 is filled in the casing 25 in close contact with the casing 25.

As explained above, in the filling nozzle of the present invention, the end of the casing is moved inside the tip opening of the nozzle body by the fixed claw provided inside the tip opening of the nozzle body and the movable claw opposite thereto. Since the movable claws are configured to clamp and fix the casing while being pushed and spread, the casing can be held very strongly and reliably, and furthermore, the movable claws are pressed toward the fixed claws by the lump of meat pushed out from the nozzle body. Therefore, the holding force of the casing by the fixed pawl and the movable pawl is significantly increased, and the casing will not come off unexpectedly during the filling operation.

Furthermore, since it is possible to use a tubular casing that is approximately the same in diameter or slightly smaller than the inner diameter of the nozzle body, the meat mass extruded from the nozzle body is packed in close contact with the casing, making it easier to pull the casing than with conventional devices. It can reduce the squeezing force.

This is also advantageous in preventing the casing from coming off accidentally.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a front view of the filling nozzle of the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is a plan view of the essential parts. , FIG. 4 is an enlarged sectional view showing the engaged state of the fixed pawl and the movable pawl, which are the main parts of the same. 1... Nozzle body, 2... Filling port of green meat filling machine, 3... Cylindrical body, 4... ■-shaped groove, 5... ...Fixed claw, 9...Opening, 10
......Movable claw, 11...V-shaped protrusion, 12
......Operating arm, 19...Sliding cam,
20...Cam surface.

Claims (1)

[Scope of Claims] 1. A fixed claw provided inside the tip opening of the nozzle body, a movable claw divided into a plurality of parts facing the fixed claw, and a movable claw provided in succession at the base end of the movable claw and said fixed claw. an operating arm that extends to the outer periphery of the nozzle body by passing through an opening provided between the claw and the nozzle body; a support portion provided on the outer periphery of the nozzle body that supports the operating arm in a tiltable manner; A filling nozzle for a green meat filling machine, comprising: an actuating device attached to a nozzle body for tilting the actuating arm about the supporting part to press the movable claw toward or away from the fixed claw. 2. Claims in which the fixing claw is provided inside a cylindrical body attached to the tip of the nozzle body, and an opening through which the operating arm is inserted is formed between the cylindrical body and the tip of the nozzle body. The filling nozzle of the green meat filling machine according to item 1. 3. A V that engages with the opposing surfaces of the fixed claw and the movable claw.
A green meat filling machine according to claim 1 or 2, characterized in that the shaped cross section has a plurality of grooves and protrusions, and the casing is clamped and fixed between the grooves and the protrusions. filling nozzle.