JPH0212540B2 - - Google Patents

Description

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

Conventional technology When filling a casing with green meat using a green meat filling machine, a tubular casing is fitted onto a filling nozzle that is fitted into the filling port of the green meat filling machine and fixed to the outer periphery of the filling nozzle. The casing is filled with the meat that is held and extruded from the filling port, but at that time, the meat that is extruded from the filling nozzle expands and the casing often comes off from the filling nozzle. In particular, in automatic green meat filling machines that automate the filling operation, operation must be interrupted when the casing comes off, which has a significant impact on work efficiency.

In order to solve the above-mentioned problems, the present applicant provided a plurality of split nozzle pieces inside the tip opening of the filling nozzle, and the opening of the casing fitted with the split nozzle pieces. The split nozzle piece presses and spreads the casing, and the split nozzle piece firmly and securely holds and fixes the casing by the fixing claw provided inside the tip opening of the filling nozzle, thereby preventing the casing from accidentally coming off during the filling operation. proposed a filling nozzle device for a green meat filling machine.
(See Publication No. 26256).

Problems to be Solved by the Invention However, the filling nozzle device according to the above-mentioned application, when filling the casing with the meat loaf extruded from the filling nozzle, uses the meat juice contained in the meat loaf to season and preserve the meat. There was a drawback that a considerable amount of the pickling liquid injected into the lump leaked from the gap between the split nozzle pieces.

Means for Solving the Problems The present invention further improves the filling nozzle device in order to eliminate the above-mentioned drawbacks. and a sliding nozzle that is slidable in the axial direction, and the sliding nozzle moves forward to push and spread the split nozzle piece, thereby opening the opening end of the casing fitted onto the split nozzle piece. The split nozzle piece is clamped and fixed between the split nozzle piece and the holding cylinder, and is held in close contact with the outer peripheral surface of the sliding nozzle.

Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings. Reference numeral 2 denotes a cylindrical fixed nozzle, which is removably fitted into and fixed to the filling port 1 of the green meat filling machine.
Reference numeral 3 denotes a cylindrical sliding nozzle, which is fitted onto the fixed nozzle 2 in a sliding manner so as to be able to slide in the axial direction. An annular flange 4 is provided at the rear end of the sliding nozzle 3.
A seal ring 5 fitted on the inner circumferential surface of the flange 4 slides on the outer circumferential surface of the fixed nozzle 2 to keep the sliding portion between the nozzles 2 and 3 airtight. Reference numeral 6 denotes a support frame fixedly arranged outside the sliding nozzle 3, and is formed in an annular shape. The support frame 6 is held by four support shafts 7 and arranged concentrically with the fixed nozzle 2 and the sliding nozzle 3, and a plastic ring 8 fitted inside the support frame 6 slides the sliding nozzle 3 into contact with the support frame 6. Guidance and support to the state. Above 4
The book spindles 7 are arranged at appropriate intervals in the circumferential direction of the support frame 6, and pass through the support frame 6 to form the fixed nozzle 2.
extends parallel to the axis of Rear end 7 of each support shaft 7
a is connected to a mounting plate 9 fixed to the outer periphery of the rear end of the fixed nozzle 2. Also, the tip 7b of the support shaft 7
protrudes forward from the fixed nozzle 2, and the tip 7b
The casing holding cylinder 10 is fixedly held. The casing holding cylinder 10 has lug pieces 11 at four locations on its outer circumference, and the lug pieces 11 are attached to the tip end 7b of the support shaft 7.
It is fitted in and fixed with a nut, and is arranged at a fixed distance in front of the fixed nozzle 2 and coaxially with the axis of the fixed nozzle 2. A ring body 12 made of a plastic material such as nylon is fitted on the rear inner circumference facing the fixed nozzle 2 of the casing holding cylinder 10, and a seal ring 1 is fitted on the front inner circumference.
3 is fitted. The ring body 12 has an inner diameter slightly larger than the outer diameter of the sliding nozzle 3, and has a locking pawl 1 of a split nozzle piece 18, which will be described later, on its inner peripheral surface.
An engagement groove 14 that engages with 9 is provided. The inner diameter of the seal ring 13 is designed to be approximately the same as or slightly smaller than the outer diameter of the sliding nozzle 3. Reference numeral 15 denotes a cylinder device for reciprocating the sliding nozzle 3 in the axial direction. As shown in Figure 1, 4
Two cylinder devices 15 are fixed to the support frame 6 at appropriate intervals in the circumferential direction, and the piston rod 16 of each cylinder device 15 extends parallel to the axis of the sliding nozzle 3 and is attached to the flange 4 at the rear end of the sliding nozzle 3. It is connected to a fixed connection plate 17.

Reference numeral 18 denotes a split nozzle piece that is divided into a plurality of pieces, and in the illustrated embodiment, it is made up of six pieces. As shown in FIGS. 4 and 5, each split nozzle piece 18 has a main body made by pressing a metal plate, and a tip that gradually becomes narrower from a wide middle portion 18a and extends forward in a bent manner. portion 18b and narrow rear end portion 1
8c, and a locking pawl 19 is provided protruding from the outer surface of the tip portion 18b, and the rear end portion 18
A sleeve 20 for attachment is fixed to c, and a protrusion 23 for locking an elastic band 24, which will be described later, is provided on the outer surface of the intermediate portion 18a. Further, the intermediate portion 18a and the tip portion 18b are curved to have an arcuate cross section, and in particular, the inner surface of the tip portion 18b is curved so as to closely fit along the outer peripheral surface of the sliding nozzle 3.

As shown in FIG. 2, the split nozzle piece 18 is pivotally supported via a pin 22 to a mounting bracket 21 on which a sleeve 20 is fixed to the support frame 6.
The tip portion 18b is disposed on the outer periphery of the sliding nozzle 3 in a posture such that it protrudes forward from the sliding nozzle 3 in the retreated position, and the entire split nozzle piece 18 is held by an elastic band 24 such as a rubber ring, and its elasticity is This urges the tip end 18b of each split nozzle piece 18 toward the axis of the fixed nozzle 2 to form a nozzle opening with a tapered end.

Next, the operation of the filling nozzle device of the present invention having the above configuration will be explained.

The tubular casing 25 is automatically or manually supplied along the axial direction of the fixed nozzle 2, and as shown in FIG. Tip 18b of split nozzle piece 18 forming an opening
It will stop at the position where it is fitted. Next, cylinder device 1
5 is activated, and the sliding nozzle 3 moves forward. As the sliding nozzle 3 moves forward, the tip 18b of the split nozzle piece 18 is pushed outward in the radial direction and is pressed against the ring body 12 of the holding cylinder 10, so that it is locked as shown in FIG. The casing opening end 25a is clamped and fixed between the claw 19 and the engagement groove 14 with which it engages, and is firmly and reliably fixed and held. The sliding nozzle 3 further advances to the front side of the casing holding cylinder 10 and brings the casing 25 into close contact with the outer peripheral surface thereof. At this time, the seal ring 13 presses the casing 25 against the outer peripheral surface of the sliding nozzle 3, and the airtightness between the casing 25 and the outer peripheral surface of the sliding nozzle 3 is more reliably maintained. Further, the gap between the outer peripheral surface of the fixed nozzle 2 and the sliding nozzle 3 is also kept sealed by the seal ring 5.

In this state, a certain amount of green meat M pushed out from the filling port 1 is filled into the casing 25 through the fixed nozzle 2 and the sliding nozzle 3 continuous thereto. Therefore, during this filling operation, meat juice and pickling liquid contained in the meat mass M leak from the gap between the outer circumferential surface of the sliding nozzle 3 and the casing 25 and the gap between the outer circumferential surface of the fixed nozzle 2 and the sliding nozzle 3. There's nothing to do.

Effects of the Invention As described above, according to the present invention, the split nozzle piece that clamps and fixes the opening end of the casing is expanded in conjunction with the forward movement of the sliding nozzle fitted onto the fixed nozzle, and the sliding nozzle is Since the movable nozzle advances further and holds the casing in close contact with its outer circumferential surface, the meat juice and pickling liquid contained in the meat loaf will not leak out during the filling operation of the meat loaf.
Therefore, there is almost no loss of raw materials during the filling operation, and the practical effects are extremely large. Moreover, the opening of the casing is firmly and reliably clamped and fixed between the split nozzle piece and the holding cylinder, so that it will not come off unexpectedly during the filling operation. The filling nozzle device of the present invention, which exhibits such effects, is particularly effective when installed in conjunction with an automatic green meat filling machine that automates the supply of casings.

[Brief explanation of drawings]

Fig. 1 is a front view of the filling nozzle device according to the present invention, Fig. 2 is a sectional view taken along line 2-2 in Fig. 1, Fig. 3 is an enlarged sectional view of the main part in the same operating state, and Fig. 4 is A plan view of the split nozzle piece, and FIG. 5 is a left side view of the same. 1... Filling port, 2... Fixed nozzle, 3... Sliding nozzle, 5... Seal ring, 6... Support frame, 7... Support shaft,
10...Casing holding cylinder body, 12...Ring body, 1
3... Seal ring, 14... Engaging groove, 15... Cylinder device, 18... Split nozzle piece, 19... Locking claw, 2
5...Tubular casing.

Claims (1)

[Scope of Claims] 1. A fixed nozzle that is fitted and fixed into the filling port of a green meat filling machine; A sliding nozzle that is fitted onto the fixed nozzle and is slidable in the axial direction; and the sliding nozzle. a support frame fixedly arranged on the outside of the support frame; an actuating means fixed to the support frame for reciprocating the sliding nozzle in the axial direction; a casing holding cylinder fixedly disposed above the sliding nozzle; and a plurality of split nozzle pieces arranged around the outer periphery of the tip of the sliding nozzle, the split nozzle pieces having base ends pivoted on the support frame. The distal end portion is movably connected and supported, protrudes forward from the sliding nozzle, and is urged inward by a spring means to form a tapered nozzle opening; A locking claw is provided on the outer surface of the casing holding cylinder, and the inner diameter of the casing holding cylinder is slightly larger than the outer diameter of the sliding nozzle, and the inner circumferential surface thereof is engaged with the locking claw of the split nozzle piece. The sliding nozzle moves forward and protrudes from the fixed nozzle, and the split nozzle pieces are pushed apart and pressed against the inner circumferential surface of the holding cylinder, and the split nozzle The end of the tubular casing is moved to a position protruding from the split nozzle piece, and the end portion of the tubular casing fitted into the split nozzle piece is clamped and fixed by the split nozzle piece and the holding cylinder, and is closely attached to the outer peripheral surface of the sliding nozzle. A filling nozzle device in a green meat filling machine configured to. 2. Claim 1, wherein a seal ring is fitted on the front inner circumferential surface of the casing holding cylinder.
Filling nozzle device as described in section. 3. Claim 1, wherein a seal ring is fitted on the sliding surfaces of the fixed nozzle and the sliding nozzle.
The filling nozzle device according to item 1 or 2. 4. The filling nozzle device according to any one of claims 1 to 3, wherein the support frame and the casing holding cylinder are fixed to the fixed nozzle via a support shaft. 5. A ring body molded from a plastic material is fitted into the casing holding cylinder, and the engagement groove is provided on the inner peripheral surface of the ring body, according to any one of claims 1 to 4. Filling nozzle device. 6. The filling nozzle device according to any one of claims 1 to 5, wherein the operating means of the sliding nozzle is a cylinder device.