FR2614763A1 - Device for producing a casing made of natural gut for the manufacture of sausages - Google Patents

Abstract

Device for producing a casing made of natural gut for the manufacture of sausages, by wrapping (winding), over a mould, a longitudinally slit small intestine and then cleaning (trimming) this small intestine by means of a special device ("chaudin") and heating the whole assembly in an oven, characterised in that, in order to wrap (wind) the slit small intestine, the device comprises: - a container 1 intended to receive the non-slit soaked small intestine 2; - a motor 17 intended to drive the mould 6 in rotation about its longitudinal axis in order to form a mandrel; - a guide rod 4 placed above the container 1, parallel to the axis of rotation of the mandrel mould 6 over which a slide 5 slides, which includes: . means 32, 31 for slipping over (threading on) a non-slit small intestine 2 drawn from the container 1, . means 40, 41 for cutting this small intestine 2 in the longitudinal direction as it moves along, . means 34 for spreading out flat the small intestine thus slit, before transferring it onto the rotating mandrel 6.

Description

DEVICE FOR PRODUCING A NATURAL HOSE ENVELOPE
FOR THE MANUFACTURE OF SAUSAGES.

 The invention relates to a device for producing a casing made of natural casing for the manufacture of sausages, in particular large diameter sausages, such as for example rosettes, jesus or large bridles.

 As is known, the envelope of quality sausages is prepared from natural casing and more precisely from the small intestine of slaughter animals (pork) which lton designates in the profession under the term of menu ". large parts, it is necessary to use reconstituted hoses.

The current technique for making these envelopes from reconstituted casings consists
- first, to place on a wooden mold of shape (cylindrical, slightly conical ..) and of appropriate dimensions corresponding to the dimensions of the part to be produced, a menu previously split longitudinally to thereby form the "nervous skin" intended to come into contact with the sausage meat, taking care to spread this menu lengthwise and vertically over the mold
- then, to dress this molded skin with a boiler, also split longitudinally, intended to form the "greasy skin"
- then, to oven the whole in temperature (50il1 and with dry air for an appropriate time (l2 to 14 hours, in order to make act the collagen intended to ensure the sticking of the two skins between them
- Finally, to remove 11 envelope obtained from its mold in particular by a jet of compressed air, and to condition this envelope for its transport and until it is filled.

 Although widely used, this reconstitution technique is practiced exclusively by hand: In this way, currently, labor represents more than three quarters of the cost price of these products.

This prevents the development of this technique and excludes such manufacturing in industrialized countries.

 The invention overcomes these drawbacks. It relates to a device which makes it possible to successfully automate the step of manufacturing the molding of the menu which is the most expensive and thereby considerably reduces the cost price of these envelopes, which then makes the exploitation of this possible manufacturing technique in industrialized countries, therefore in the immediate vicinity of the places of manufacture of sausages.

This device for producing an envelope in natural casing for the manufacture of sausages, by winding on a mold a menu split longitudinally, then dressing of this menu by means of a boiler and steaming of the whole, is characterized in that to roll up the split menu, the device includes
- a container intended to receive the washed nor menus. Split
- a motor intended to drive the mold in rotation around its longitudinal axis to form a mandrel:
- a guide rod, placed above the container, parallel to the axis of rotation of the mandrel mold, on which slides a slider comprising
. means for threading an unsplit menu
taken from the container,
. means for cutting in the longitu direction
dinal this scrolling menu,
means for laying out the menu flat as well
split before transferring it to the chuck
in rotation.

 In other words, instead of wrapping the menu cut manually by hand around the fixed mold, this split menu is helically wound on this rotary mold then forming a mandrel by pulling and splitting it as you go of its progress on the moving mold. The manufacture of the envelope is then finished in the same manner as above.

Advantageously, in practice
- the mandrel is cylindrical or slightly conical and is made of a material that is inert with respect to water and the menu, such as for example iroko wood
- The mandrel has a longitudinal main channel and radial secondary channels opening to allow after steaming, the injection of compressed air intended to peel off the envelope formed from the mold
- the rotary mandrel mold drive motor is a hydraulic gear motor since the atmosphere in which this device is installed is highly humid, which makes it impossible to use the electric motor
- This motor comprises an output shaft having a centering pin intended to cooperate with the main longitudinal channel of the mandrel mold and two attachment points on this same mandrel
- the motor is controlled by a toggle switch easily operable by the operator;
- The assembly also includes a double-acting cylinder, acting in the same direction as the axis of rotation of the mandrel and the end of which disposed on the side of the mandrel comprises a drive disc capable of receiving one end of the mandrel mold during of his rotation
- the cursor includes
a slide capable of sliding on the rod
guide,
a first cylindrical portion whose ex
end is rounded, on which engages
the non-split menu, this first portion
cylindrical being orthogonal to the rod
guides and is tilted down above
container, and has a slot on par
tie of a generator placed under the por
tion directed to the container,
a second portion1 adjoins the first,
forming a spacer, in the shape of a curved fan,
rounded at its end, also orthogo
nal to the guide rod, but inclined towards the
high in the direction of the mandrel,
a knife engaged in the slot of the pre
first cylindrical portion and the other
end rests on an integral rod
of the slide, parallel to the first por
tion.

 The manner in which the invention can be implemented and the advantages which result therefrom will emerge more clearly from the embodiment which follows, given by way of non-limiting example, in support of the appended figures.

 Figure 1 shows in front view a summary representation of a device according to the invention.

 2 shows a side view of the cursor device characteristic of the invention.

 Referring to the figures, the device for molding a split menu characteristic of the invention firstly comprises a container (1), for example made of food-grade plastic, in which the menus (2) of whole pigs are deposited in bulk. soaked desalinated in lukewarm water, being careful not to tangle them and to individualize each end (3).

 Above this container (1), a horizontal guide rod (4), for example in a square steel cube, is fixed at its two ends to the work table. On this guide (4), can slide by hand a cursor (5) shown in detail in Figure 2.

 Parallel to this guide rod (4), the mandrel mold (6) is placed, the diameter and the length of which correspond substantially to the dimensions of the envelope to be produced. In known manner, this cylindrical mandrel (6) is made of a material insensitive to water and to the subsequent conditions of treatment. It is advantageously made of Iroko wood. This mandrel (6), for example fifteen centimeters in diameter and fifty centimeters long is pierced in its center with a longitudinal channel (7) and a plurality of radial slots (8). The first end (9) of this horizontal mandrel (6), that is to say the end which has been previously covered with a menu cap, bears against a drive plate (11) in disc shape curved at its periphery (12) to form a stop. This disc is advantageously made of polytetrafluoroethylene. This plate (11) is secured by a bearing (13) of an axis (14) actuated by a double-acting pneumatic cylinder (15) controlled by hand at (16).

 The opposite end (10) of the mandrel (6) is rotated by a pneumatic motor reducer (17) whose output shaft (18) (output speed 50 to 100 revolutions / minute) has a disc (19) carrying two points (20,21) intended to come to bear between the flat end (10) as well as a centering pin (22) intended to be inserted in the longitudinal channel (7) to properly drive the assembly in rotation . This mcteur (17) has two compressed air supply (23) and air rejection (24) pipes respectively.

This motor is controlled by a gencuillère switch (25) placed for example at the level of the container (1).

 The cursor designated by the general reference (5) and shown in detail in FIG. 2 comprises first of all a slide (30) whose internal shape corresponds to the clearance close to the external dimensions of the guide rod (4) on which it slides . This slide (30) is secured by welds of a first hollow cylindrical portion (31) of steel whose free end (32) is rounded.

This first portion (31) is orthogonal to the guide rod (4) and is inclined downwards above the container (1). It has a slot (33) arranged on the internal face of the portion (31) directed towards this container (1). The slide (30) is also integral with a second portion (34) contiguous to (31) in the form of a curved fan, therefore open on the underside, intended to form a spacer. This second portion, rounded at its end (35) is also orthogonal to the guide rod (4) but is inclined upward in the direction of the mandrel (6).

 According to a characteristic of the invention, the slide (30) comprises a tightening nut screw (36) intended to ensure the fixing of a guide (37) carrying a support (38), the end (39) of the rod (37) providing an appreciable interval with the first portion (31).

A knife blade (40) in the wire (41) is fixed at (38) and inserted into the slot (33). The device operates as follows.

 The operator grasps the end (3) of a menu (2), engages it on the end (32), makes it slide along the first portion (31). In doing so, the menu (2) comes into contact with the cutting wire (41) and thus splits in the longitudinal direction. The longitudinally split menu is then spread out by advancing the lcng lcng; second portion (34), then is engaged by hand at the end (10) of the mandrel (6) which is then in rotation.

As already said, the end (9) of the mandrel has been previously covered with a menu cap. Simultaneously with the rotation of the mandrel (6), the operator slides the cursor (5) on the rod (4) by hand, so that the longitudinally split menu is wound in a contiguous helix on the mandrel (6) . When you reach the end of the travel, that is to say at the end (9), the operator cuts the split menu just at this end.

By pressing the switch (25), it stops the rotation of the mandrel. It then activates the control (16) which releases the plate (11) and thus frees the mandrel (6) entirely covered with a menu wound in contiguous spirals.

 In a known manner, the operator covers the whole of a boiler, then the whole is steamed under the usual conditions.

 After cooling, a jet of compressed air sent into the channel (7) takes off the envelope formed from the mandrel (6). The envelope is then ready for use, that is to say for filling.

 This device has many advantages compared to the current essentially manual method.

We can quote
- manufacturing speed, since it takes substantially ten times less time
- a substantial saving in personnel, which is very decisive
- consequently, the improvement of the cost price
- the possibility of manufacturing excellent quality casings, because they are used immediately after their manufacture, therefore in a very good state of freshness
- finally, also the improvement of the drying speed.

 In this way, this device can be successfully used for the manufacture of rosette envelopes, of Jesus, large bridles or any other form of sausage, even in countries with high labor costs.

Claims (6)

 1 / Device for producing a casing in natural casing for the manufacture of sausages, by winding on a mold a menu split longitudinally, then dressing of this menu by means of a boiler and steaming of the whole, characterized in that to roll up the split menu, the device includes  - a container (1) intended to receive the unsplit tempered menu (2)  - a motor (17) intended to drive the mold (6) in rotation about its longitudinal axis to form a mandrel  - an avid rod (4) disposed above the container (1), parallel to the axis of rotation of the mandrel mold (6) on which slides a slider (5) comprising  . means (32,31) for threading a menu not  split (2) drawn from the container (1),  . means (40,41) for cutting in the direction  longitudinal this scrolling menu (2),  . means (34) for spreading the menu flat  thus split before e transfer it to the  rotating mandrel (6).  2t) ispositif according to claim 1, characterized in that the mandrel (6) is made of Iroko wood.  3 / Device according to one of claims 1 and 2 characterized in that the mandrel mold (6) comprises a longitudinal main channel (7) and secondary radial channels (8) opening.  4 / Device according to one of claims 1 to 3, characterized in that the motor (17) is a hydraulic gear motor.  5 / Device according to claim 4, characterized in that the motor (17) comprises an output shaft (18) having at its end a plate (19) carrying two points (20,21) for attachment intended to cooperate with the end (10) of the mandrel (6) and a centering pin (22) intended to cooperate with a longitudinal main channel (7) of the mandrel mold (6).  6 / Device according to one of claims 4 and 5, characterized in that the motor (17) is controlled by a switch (25) toggle switch.  7 / Device according to one of claims 1 to 6, characterized in that the assembly comprises a double-acting cylinder (15), acting in the same direction as the axis of rotation of the mandrel mold (6) and whose l 'shaft (14) has a drive disc (11) adapted to receive the end (9) of the mandrel mold (6).  8 / Device according to one of claims 1 to 7, characterized in that the cursor (7) comprises  - a slide (30) capable of sliding on the guide rod (4),  - A first cylindrical portion (31) whose free end (32) is rounded on which engages the unsplit menu, this first hollow cylindrical portion (31) being orthogonal to the guide rod (4) and is inclined towards the bottom above the container (1) and has a slot (33) disposed on part of a generator on the underside of the portion directed towards the container (1)  - a second portion (34) contiguous to the first (31) forming a spacer, in the shape of a curved fan, rounded at its free end (35), orthogonal to the guide rod (4), but inclined upwards in the direction mandrel (6)  - A knife (40) engaged in the slot (33) of the first cylindrical portion (31) and the other end (38) of which rests on a rod (37) integral with the slide (30).