JPH07114626B2 - Extractor for poultry - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is directed to the esophagus, sacs, and esophagus from the cervix portion of a poultry, which comprises one rotary drive mandrel fed through the abdominal cavity of slaughtered poultry into the neck opening. A device for removing trachea and other attached parts.

[0002]

2. Description of the Related Art Such a device is disclosed in EP-A1-0,16.
Known from US Pat. No. 2,154,154, a so-called “extraction device” is used in a mechanized and automated poultry slaughter system. After visceral removal, the esophagus, sacs, trachea and other attachments can be left behind in the neck region, which must be removed for hygiene and marketing reasons.

This removal can be carried out using an extraction device known per se. In this case, it is of utmost importance that this removal takes place with a high degree of certainty. Birds that were poorly excised were
It must be returned to the extractor after the examination. This results in a reduced capacity of the slaughter system or a higher slaughter cost for the same capacity.

Secondly, it is important that the excision is performed so that the poultry is not damaged. This can be accompanied by damage to or damage to poultry bone and damage to poultry meat.

Third, the trend towards higher automation of slaughter systems is partly responsible for the work done on the trachea so that the maximum amount of meat is available as the final product. It is becoming more and more important.

In order to meet the first requirement, the above-mentioned extraction device (EP-A1-0,162,154) provides the bird's neck when the mandrel is inserted into the bird's neck opening. It must have a certain minimum diameter so that it can be stretched in minutes. Therefore, this extraction device is not able to fulfill the second and third requirements, because the force exerted by the mandrel on the neck opening can cause bone and / or meat damage.

Other extraction devices are known per se, such as the extraction device according to US-A-4,208,764. US-
The extraction device according to A-4,208,764 is not able to meet the second and third requirements because the mandrel used is provided with angled projections which are oriented radially. . Furthermore, due to the vacuum used, the bird's neck portion is pressed against these angled parts.

The excision device known from NL-A-8303633 has a forwardly projecting shape which has a high risk of damaging bone and meat by the action of its pointed projections on the end of the mandrel used. Since the projections are provided, it is impossible to satisfy the second and third requirements. Similar drawbacks are apparent in the case of the extraction device according to EP-B1-0,178,825.

From EP-B1-0,204,366,
Extracting devices are known which fulfill the above three requirements by partially enclosing the working mandrel in part by a non-rotating, smooth cylinder which moves axially with the mandrel. However, this extractor is mechanically more complex than an extractor having only a mandrel.

Finally, the extraction device known from NL 8801707 should be mentioned, which extraction device is
The second and third requirements are met by avoiding the use of sharp angled components on the mandrel. But first
To a lesser degree.

An object of the present invention is to provide an extracting device having a very simple structure which satisfies all the above three requirements.

[0012]

DISCLOSURE OF THE INVENTION The above-mentioned object of the present invention is to remove the esophagus, sac, trachea from the neck of slaughtered poultry,
A removal device for removing other adhered parts,
The mandrel comprises a hollow mandrel that rotates and is fed through the abdominal cavity of the poultry and through the neck opening and that is connected to the vacuum device to form a vacuum system. At least one opening in the outer wall of the mandrel to draw the part to be removed towards the mandrel and at least part of the tip is arranged outside the outer wall and cooperates with the opening to grip the part to be removed And a tongue-shaped member that performs

Further, the above-mentioned object is a removing device for removing the esophagus, sacs, trachea and other adhering portions from the neck portion of slaughtered poultry, which is rotated and opened from the abdominal cavity of the poultry to the neck portion. A mandrel that is hollow and connected to a vacuum device to form a vacuum system, the mandrel being provided on the outer wall of the mandrel to draw in the portion to be removed by the action of the vacuum device. At least one opening,
At least one strip forming part of the mandrel and curved so as to at least partially surround the longitudinal axis, and of the strip to grip the part to be removed which has been drawn towards the mandrel by the action of the vacuum device. It is also achieved by an extractor having at least one notch in the longitudinally extending edge.

[0014]

According to the extracting device of the present invention, the hollow mandrel is connected to the vacuum device to form a vacuum system, and is rotated and fed so as to penetrate from the abdominal cavity of the poultry into the neck opening. . The portion to be removed by the action of the vacuum device is drawn to at least one opening in the outer wall of the mandrel. The tongue-shaped member has at least a part of its tip disposed outside the outer wall, and cooperates with the opening to grip the part to be removed.

With the above arrangement, it is possible to select the mandrel size so that it exerts only a minimal force on the neck portion of the poultry, especially due to the presence of the opening in the vacuum system. In particular, it is possible to reduce the force of stretching the neck portion or when the inner neck opening is stretched to increase its size. The inside of the neck opening is brought into close contact with the mandrel by the action of the vacuum. The mandrel can take various forms.

The extraction device according to the invention has at least a part of its tip, which grips the part to be removed in cooperation with at least one opening provided in the outer wall of the mandrel for carrying the part to be removed by the action of a vacuum device. Since it has a tongue-shaped member that is placed outside the outer wall,
It is possible to almost completely remove from the neck the esophagus, the sacs, the trachea, and other attached parts that must be removed for hygiene and marketing reasons, and return them to the excision device again after the examination. The need for excision of the remaining parts is greatly reduced, without the possibility of damaging or damaging poultry bones and damaging poultry meat, and more maximal meat is available in the final product.

According to another extraction device of the present invention, a hollow mandrel is connected to a vacuum device to form a vacuum system so that the mandrel rotates and penetrates from the abdominal cavity of the poultry into the neck opening. Sent in. At least one strip is curved so as to at least partially surround the longitudinal axis and forms a part of the mandrel, and the portion to be removed which is attracted towards the mandrel by the action of the vacuum device in the longitudinal direction of the strip. It is gripped by at least one notch provided in the edge extending to the.

Advantageously, the mandrel is in the form of a cylinder, the simplest of which is to provide the mandrel with a plurality of locations with a single gripping means associated with a single opening in the vacuum system. In shape, the mandrel is a hollow cylinder that is sealed at one end.

The gripping means are advantageously designed in a rounded shape. The gripping means / hole shape can be formed such that the shape fits completely within the outer surface of the mandrel so that the mandrel has no protruding portions.

The claims and many of the attendant advantages of the present invention will be better understood with reference to the following detailed description and better considered in connection with the accompanying drawings, while being more readily appreciated. Will be done. In the attached drawings, the same parts in the drawings are denoted by the same reference numbers.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 shows a bird having a neck portion 2 and legs 3.
Shows the body of bird 1, such as a turkey. The extraction device 4 is shown schematically in its continuous position 4 ', 4 ", 4'". In general, birds have both legs suspended on a hook that moves along a conveyor track for transporting the bird while passing through various processing locations.

FIG. 2 shows in longitudinal section one of the embodiments of the extraction device 4a according to the invention, which extraction device 4a is part of a vacuum system and for this purpose is connected to a vacuum pump (as shown). Not) connected to the passage by its top portion 5. The working part of the extractor 4a consists of a mandrel in the form of a hollow cylinder 6, the wall of which is designed with a hole 7 which in this case is a circular opening. Grip means 8, which serves as a tongue for gripping the part to be removed from the bird, is mounted on the outside of the hollow cylinder near the hole. In this case the gripping means 8 is formed by a tongue 8 which partially overlaps the hole 7 and is welded slightly above the hole 7. The hollow cylinder 6 is closed at its bottom side by a cover 9.

FIG. 3 shows a perspective view of the extraction device.

FIG. 4 shows a perspective view of another embodiment, in the case of this extraction device 4b each tongue 8 is welded onto the side of the hole 7.

When the extractor is inserted into the bird's neck, the bird's neck will be pulled around the extractor mandrel by the action of the vacuum within the extractor. This creates an ideal condition, since the gripping means will certainly grip the esophagus, trachea etc. These parts to be removed will be carried with the rotary extractor past the neck part 2. When the extraction device comes out of the bird's neck, the bird's attachments will be removed from the extraction device and the extraction device will be cleaned before being pulled back through the neck.

As the shape which can be adopted as the grip means which is connected to the opening of the vacuum system and constitutes a part of the extracting device,
The fixing means can be configured to be completely housed inside the outer wall of the extractor body. In this case, the extractor body has no protruding parts at all, so that the risk of damaging bone or meat is further reduced, especially if the extractor body is a cylinder with a shaft.

FIGS. 5 and 6 show still another extracting device embodiment 4c.
Indicates. The extraction device 4c includes linear strips 14 'and 1
Two parallel curved strips 14 and 1 fixed to 5 '
5 while the straight strips 14 'and 15' are fixed to the end 16 of the extractor. Parts 14, 15, 1
4 ', 15' form the mandrel of this extractor.
These strips are designed with notches or gripping means 17 ending in a tip 18 which is a notch. The curved strip ends are oriented such that the curved strip ends are always tangential to the circle drawn by the curved strip ends during rotation of the extractor. The extractor is also provided with a front side 16 forming part of the wall of the vacuum system. The flow path for the air drawn by the vacuum system is indicated by arrow 20.

[0028]

As described above, according to each extraction device of the present invention, the portion to be removed by cooperation with at least one opening provided in the outer wall of the mandrel for carrying the portion to be removed by the action of the vacuum device. Has a tongue-shaped member, at least a part of the tip of which is arranged outside the outer wall, which must be removed for hygiene and sales reasons at the time of internal visceral removal, for the reasons of hygiene and sales. It becomes possible to almost completely remove the other adhered part from the neck, and it is possible to greatly reduce the need to extract the remaining part after returning to the extractor after the inspection.
There is also no possibility of damaging or breaking poultry bones and damaging poultry meat, and more of the meat is available in the final product.

[Brief description of drawings]

FIG. 1 shows a bird to be excised.

FIG. 2 is a longitudinal section view of one embodiment of the device according to the invention.

FIG. 3 shows a perspective view of the embodiment according to FIG.

FIG. 4 is a diagram showing another modification of the embodiment.

FIG. 5 is a side view of yet another embodiment of gripping means / hole shape.

6 is a cross-sectional view taken along line VI-VI of FIG.

[Explanation of symbols]

 1 Bird 2 Bird's Neck 3 Bird's Leg 4, 4a, 4b, 4c Extracting Device 5 Extracting Device Top 6 Hollow Cylinder 7 Hole (Opening) 8, 10, 17 Grip Means 9 Cover 11 Opening 12 Rotating Shaft 13 Outside of Extracting Device Main Body Walls 14 and 15 Curved strips 14 'and 15' Straight strips

Claims (9)

[Claims] 1. A removal device for removing esophagus, sacs, trachea, and other attached parts from the neck portion of slaughtered poultry, which is rotated and penetrates from the abdominal cavity of the poultry into the neck opening. And a hollow mandrel connected to a vacuum device to form a vacuum system, the mandrel moving the portion to be removed toward the mandrel by the action of the vacuum device. At least one opening in the outer wall of the mandrel for pulling, and a tongue-shaped member having at least a part of its tip arranged outside the outer wall and cooperating with the opening to grip the part to be removed And an extraction device having. 2. The device according to claim 1, wherein the tongue-shaped member comprises a hollow cylinder, and the outer wall is provided with a plurality of openings. 3. The apparatus of claim 1, comprising at least two tongues, each of the tongues extending in a direction perpendicular to the length of the mandrel. 4. The apparatus of claim 1, comprising at least two tongues, each of the tongues extending in a direction parallel to the length of the mandrel. 5. The tongue-shaped member is provided in the vicinity of the opening formed in the outer wall of the mandrel.
5. The device according to any one of 4 to 4. 6. The apparatus according to claim 5, wherein the tongue-shaped member is provided so as to cover at least a part of the opening formed in the outer wall of the mandrel. 7. An excision device for removing esophagus, sacs, trachea and other adhering parts from the neck portion of slaughtered poultry, which is rotated and penetrates from the abdominal cavity of the poultry into the neck opening. A mandrel that is hollow and connected to a vacuum device to form a vacuum system, the mandrel being provided on an outer wall of the mandrel for removing the portion to be removed by the action of the vacuum device. At least one opening, at least one strip forming part of the mandrel and curved so as to at least partially surround the longitudinal axis, and pulled toward the mandrel by the action of the vacuum device At least one provided on a longitudinally extending edge of the strip to grip the portion to be removed Extraction device that has a notch. 8. The strip is connected to each of the two straight strips with two flat sides facing each other in the direction of the longitudinal axis and to partially surround the longitudinal axis. 8. The device of claim 7 comprising two curved strips that are curved and have at least one notch provided in the longitudinally extending edge. 9. The edges of the two curved strips are oriented such that they are substantially tangential to the circle described by the curved strip edges during rotation of the extractor. 9. The device according to claim 8, wherein