JPS6023809B2 - Automatic injection machine for raw meat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic injection machine for raw meat that injects pickling liquid, which is a mixture of seasoning liquid, preservation liquid, etc., into raw meat blocks for ham, sausage, bacon, and other processed meat products.

In general, this type of automatic injection machine has a liquid supply tank that is provided above a supporting part of the raw material green meat so as to be able to rise and fall freely, and a large number of injection needles that are provided hanging down from the bottom of the liquid supply tank, When the liquid supply tank is lowered, the injection needle pierces the raw material green meat, and the pickling liquid in the liquid supply tank is injected from a spout provided at the tip of the injection needle into the green meat. There is.

However, in conventional automatic injection machines, pickling liquid is automatically injected from all the injection needles when the liquid supply tank descends to a certain position (the position where the injection needles pierce the raw material meat). Therefore, if only some of the injection needles are pierced into the raw material meat, a large amount of pickling liquid will flow out from the injection needles that have not penetrated into the raw material meat (because there is little flow resistance), and this will cause the raw material meat to pierce. There was a drawback that a predetermined amount of pickling liquid could not be injected through the injection needle inserted into the meat, making it impossible to obtain raw meat of consistent quality.

In addition, the pickling liquid that flows out from the injection needle that has not pierced the raw material meat is collected by a pump and reused, but the temperature of the pickling liquid rises due to circulating recovery, which causes the liquid to dilute and deteriorate quality. It became. Furthermore, an automatic valve that supplies pickling liquid from the liquid supply tank to each injection needle was installed at the connection with the pre-supply liquid tank, so that even after the needle was removed from the raw material meat, there was no possibility that the pickling liquid would remain in the needle. Not only does the pickling liquid drop, but air also flows into the injection needle into which the pickling liquid has been dropped, and during the next injection, the air inside the injection needle is injected into the raw material meat, and the bacteria in the air is absorbed into the raw meat. There was a risk of contamination. The inventor of the present invention aimed to solve the above-mentioned problems with the secondary syringe, and made a movable valve body that opens and closes the spout provided at the tip of each injection needle so as to be slidable in the lower part of the injection needle. This automatic injection machine for raw meat is configured so that pickling liquid is spouted only from the injection needle that is inserted into the raw meat lump and only while the injection needle is inserted into the raw meat lump, and from the spout at the tip of the injection needle. was proposed in Tokuiso Sho 56-050195.

The present invention is an improvement of the automatic injection machine for raw meat according to the above-mentioned patent application, and provides an automatic injection machine for raw meat in which the operation of the movable valve body is made smooth and reliable, and its structure and manufacturing process are simplified. According to the present invention, the movable valve body and a guide cylinder for slidably guiding the movable valve body along the injection needle extend parallel to the injection needle. The movable valve body is integrally connected by a columnar body, and the upper part of the movable valve body is open, making it easy to clean the injection needle, and the structure is simple and manufacturing is easy. It is also possible to integrally mold the valve side member consisting of the guide cylinder and the columnar body from stainless steel, plastic material, or the like.

Further, the guide cylinder is movably externally supported on the holding cylinder shaft of the syringe needle fixed to the bottom of the liquid supply tank, and is constantly subjected to downward pressure by a spring attached to the holding cylinder shaft, The movable valve body is held at the lower end of the holding cylinder shaft, and in this state, the movable valve body is located at the tip of the injection needle to close the spout, and inside the columnar body. The movable valve element slides up and down along the injection needle because the axially extending protrusion protrudes from the flange and is configured to slide by engaging with the notch groove provided in the flange. During operation, it operates extremely smoothly and reliably without any horizontal wobbling or tilting.

Embodiments of the present invention will be described below based on the drawings. 1 is a main machine frame, and 2 is a belt conveyor disposed almost horizontally on the upper part of the machine frame 1. The conveyor 2 conveys raw meat M, and seasoning liquid, preservation liquid, etc. are mixed on the way. Pickling liquid is injected into the raw meat M.

Reference numeral 3 denotes a liquid supply tank to which pickling liquid at a predetermined pressure is continuously supplied, and a pair of support columns 4 are connected to hang from both ends of the tank.
is slidably provided on the machine frame 1 and placed oppositely above the conveyor 2, so that it moves up and down at regular intervals.

Reference numeral 5 designates a number of injection needles that are arranged in parallel and hanging down from the bottom 3a of the liquid supply tank 3.As shown in FIG. The upper end opening □9 of the through hole 6 communicates with the liquid supply tank 3.

Reference numeral 10 denotes a holding cylinder shaft that guides and holds the injection needle 5. A threaded portion 11 provided at the upper end is inserted into the tank bottom 3a, and a nut 13 is screwed onto the threaded portion 11 to secure the holding cylinder. 12
There is a lotus set up.

The injection needle 5 slidably passes through the holding tube 1, and the head 8 abuts the upper end surface of the holding tube shaft 10 via the seal ring 14 to restrict downward movement in the adjacent direction. The movement upward in the direction is restricted by a pressing spring 15, and when the tip of the injection needle 5 collides with a bone or other hard foreign matter in the raw meat M, the injection needle 5 moves upward against the pressing spring 15. to prevent breakage. teeth· ,. 5 is a cylindrical movable valve body that opens and closes the spout 7, and 17 is a guide cylinder that slidably guides the movable valve body 16 along the injection needle 5, both of which are parallel to the injection needle 5. They are integrally connected by two protrusions 18 extending from one side to the other.

The valve component consisting of the movable valve body 16, the guide cylinder 17 and the columnar body 18 is integrally molded from a plastic material with excellent wear resistance such as Teflon. The movable valve body 16 has an insertion hole 19 for the injection needle 5 in the center thereof, and two annular grooves 21 are formed on the inner circumferential surface of the insertion hole 19 with two annular grooves spaced apart from each other in the axial direction. The spout 7 is sealed by both O-rings 21. The guide cylinder 17 is slidably moated around the holding cylinder shaft 10, is constantly pressed downward by a spring 22 mounted on the holding cylinder shaft 10, and is locked to the flange 12. Movable valve body 16
is located at the tip of the injection needle 10 to keep the spout 7 closed. Further, a protrusion 23 extending in the axial direction that is provided opposite to each other on the inside of the columnar body 18 is provided on the flange portion 12 of the holding cylinder shaft 10 .
The movable valve body 16 is inserted into the injection needle 5 by engaging with the notch groove 24 provided in the syringe needle 5.
By employing such a guide mechanism, the movable valve body 16 can slide extremely smoothly and reliably along the injection needle 5, preventing it from wobbling or bending. do not have. Next, the operation will be explained.

When the liquid supply tank 3 and the series of injection needles 5 descend and the tip of the injection needle 5 pierces the raw meat mass M, the injection needle 5 further descends and pierces the raw material mass M, but the movable valve body 16 It stops in a state where it is pressed against the meat mass M. Due to this relative movement between the injection needle 5 and the movable valve body 16, the spout 7 of the injection needle 5 is brought into a closed state as shown in FIG. Injected. At this time, the injection needle 5 that does not pierce the meat mass M has its spout 7 connected to the movable valve body 16.
Since it remains closed, the pickling liquid will not leak out. As the liquid supply tank 3 rises, the injection needle 5 suitable for piercing the meat mass M also rises, but while the injection needle 5 is stuck into the meat mass M, injection of the pickle liquid continues.

On the other hand, the movable valve body 16 is pressed against the green meat M by the spring pressure of the spring 22 while the injection needle 5 is stuck into the green meat M, and when the injection needle 5 is pulled out from the green meat M. This movable valve body 16, which also serves as a presser foot, presses the flesh soul M and pulls out the injection needle 5. Then, at the same time that the injection needle 5 is withdrawn from the body M, its spout 7 is closed by the movable valve body 16, and the injection needle 5 returns to the state shown in FIG. 2 and rises to its original position. As explained above, according to the present invention, since the spout at the tip of the injection needle is opened and closed by a movable valve body, the pickling liquid is ejected only from the injection needle stuck into the raw material green meat, It will not eject from a needle that is not inserted into the needle.

Therefore, wasteful outflow of pickling liquid is eliminated, the amount of pickling liquid to be circulated and collected is extremely small, it is possible to prevent quality deterioration due to temperature rise and dilution of pickling liquid due to circulation recovery, and it is also possible to There is no room for air to enter the through hole, and this has the effect of effectively preventing air from getting mixed into the raw material meat when pouring the pickling liquid. Moreover,
The movable valve body is connected to a guide barrel via two columnar bodies extending parallel to the injection needle, and a protrusion projecting from the inside of the columnar body and extending toward the forehead is connected to the holding tube of the injection needle. Since the movable valve body slides by engaging with a notched groove provided in the flange provided at the lower end, when the movable valve element slides up and down along the injection needle, it does not oscillate laterally or become loose. It operates extremely smoothly and reliably. Furthermore, since the upper part of the movable valve body is open, there are various practical effects such as easy cleaning of the injection needle.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view of an automatic injection machine for raw meat, FIG. 2 is an enlarged vertical sectional front view of the main part of the meat, and FIG.
4 is an enlarged cross-sectional view taken along line 1-1 in FIG. 2, and FIG. 5 is a vertical cross-sectional side view of the village of Ben Yokoaribe. 3...Fluid supply tank, 5...Syringe needle, 1
0... Holding cylinder shaft, 12... Flam part, 16
...... Movable valve body, 17... Guide cylinder body, 18.
... Column body, 22 ... Presser spring, 23
... Protrusion, 24 ... Notch groove. Figure 4 Figure 1 Figure 2 Figure 3 Figure 5

Claims (1)

[Scope of Claims] 1. A liquid supply tank provided above a supporting portion of raw material green meat such that it can be raised and lowered freely, and a number of injection needles provided hanging down from the bottom of the liquid supply tank, The automatic machine is configured such that when the liquid tank is lowered, the injection needle pierces the raw material green meat, and the pickling liquid in the liquid supply tank is injected from a spout provided at the tip of the injection needle into the green meat. The injection machine includes a movable valve body that is slidably fitted in the axial direction to the lower part of the injection needle and opens and closes the spout, the movable valve body;
A guide cylinder that slidably guides the movable valve body along the injection needle is integrally connected by two columnar bodies extending parallel to the injection needle, and the guide cylinder body is slidably fitted onto the holding cylinder shaft of the syringe needle fixed to the bottom of the liquid supply tank, and is constantly pressed downward by a spring fitted onto the holding cylinder shaft, and the lower end of the holding cylinder shaft. In this state, the movable valve body is located at the tip of the injection needle, and the movable valve body closes the spout, and the inside of the columnar body An automatic injection machine for raw meat, wherein an axially extending protrusion protruding from the flange engages with and slides in a notched groove provided in the flange. 2. The raw meat automatic according to claim 1, wherein the valve component consisting of the movable valve body, the guide cylinder body, and the columnar body is integrally molded from stainless steel, plastic material, or the like. injection machine.