GB2075459A - Stuffing a pliable article into a casing - Google Patents
Stuffing a pliable article into a casing Download PDFInfo
- Publication number
- GB2075459A GB2075459A GB8112423A GB8112423A GB2075459A GB 2075459 A GB2075459 A GB 2075459A GB 8112423 A GB8112423 A GB 8112423A GB 8112423 A GB8112423 A GB 8112423A GB 2075459 A GB2075459 A GB 2075459A
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- GB
- United Kingdom
- Prior art keywords
- article
- casing
- piston
- pliable
- stuffing
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C7/00—Apparatus for pounding, forming, or pressing meat, sausage-meat, or meat products
- A22C7/0023—Pressing means
- A22C7/003—Meat-moulds
- A22C7/0046—Containers in which meat is pressed and moulded
- A22C7/0061—Containers for moulding and pressing ham
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C11/00—Sausage making ; Apparatus for handling or conveying sausage products during manufacture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B25/00—Packaging other articles presenting special problems
- B65B25/06—Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products
- B65B25/065—Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products of meat
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Processing Of Meat And Fish (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Meat, Egg Or Seafood Products (AREA)
- Package Closures (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Making Paper Articles (AREA)
Abstract
A whole boneless ham is stuffed under continuous pressure into a preclipped end of a length of casing deshirred from a continuous shirred casing length while providing for the continuous venting of air from the interior of the casing length, the stuffed casing length being then closed by a clip. The ham is placed in a chamber 34, a lid 42 is closed, a piston is operated to compress the ham laterally and a piston 54 is advanced to force the ham into a tube 30 and the central part of the piston then continues to advance to push the ham right through the tube, into the casing as in U.S. Specification 4044426. Air escapes through holes 62 and between the shirred casing and its support. Rings 26, 28 hold back the casing from slipping forwardly as in U.S. Specification 4077090.
Description
SPECIFICATION
Method and apparatus for stuffing a pliable
article into a casing
This invention relates to meat packing,
particularly to the stuffing of boneless whole meat
articles into casings to make unitary packaged
meat articles and, more particuiarly, to the .packaging of whole boneless hams into lengths of
casing deshirred from a continuous shirred casing
supply.
Techniques for the stuffing of continuous length
flexible food casings with viscous meat emulsion
are now fairly well known in the meat packing and
processed meat industries. The more recent
developments in this area of the technology utilize
long shirred lengths of flexible tubular food casing
for stuffing on high speed automatic stuffing
apparatus to produce large size sausage products
such as bolognas, liverwursts, and the like, as
described, for instance, in considerable detail in
U.S. Patents 4,017,941 to Raudys et al, and
4,044,426 to Kupcikevicius et al.
In another somewhat technologically related
area of the meat packing industry, whole boneless
meat articles, such as hams, have been packed
into lengths of flexible tubular food casing and tied
off at the ends to make discrete unitary packaged
food articles. Such packaging techniques generally
have involved slow and labor intensive operations.
In such practice, a whole boneless meat article, a
ham typically, is manually inserted loosely into a
cut length of presoaked casing which has been
pretied or clip-closed at one end. Insertion of the
ham- into the casing is accomplished manually or
is assisted by means of one or another
commercially available meat presses. In a
subsequent pressure packing operation, the ham
is tightly packed within the casing, simultaneously
expelling entrapped air and shaping the ham. The
operator may also "stick" the casing during the
pressure packing operation, providing holes to
further assist in expelling air from within the
packed casing. The open end of the packed casing
is then tied or clip-closed to complete the encased
food article. Typical pressure packing techniques 'for boneless meat articles are shown and
described in U.S.Patents 3,115,733 to Tipper
and 3,065,585 to Rumsey, Jr. Somewhat greater
automation in the boneless whole meat article
stuffing technology is shown and described in
U.S. Patent 3,919,739 to Kawai. Kawai utilizes a
continuous band casing soaker in combination
with a carriage means to continually put the open
casing end into registration with a nozzle of a
packing element. With the casing soaked and thus
in place, a meat article is loosely packed into the
temporarily held casing length. After a first clip is
applied, the unclipped end of the packed casing is
pulled tight around the meat article thereby
shaping said meat article and expelling air
entrapped within said packed casing. The
unclipped end of the casing is then tied or clip
closed and the resulting encased meat article is
severed from the casing supply feed length.
While the Kawai '739 apparatus represents an advance towards the goal of automatic ham stuffing, it does not provide a completely satisfactory technique. A significant disadvantage lies in the feeding of the casing being stuffed in a direction opposite the direction of progression of the articles being stuffed. Each stuffing action constitutes a sort of head on collision between the ham and the casing length into which it is to be packaged. Since, because of the apparatus design, there is no way to continually stuff the continuous casing band in a unidirectional mode with the direction of progression of the hams in process, this counterflow relationship between the casing band and the hams constitutes an inherent mechanical inefficiency.Another factor in the r739 patent technique which detracts from efficient packaging is that the hams are inserted into a loosely fitting casing which is subsequently drawn tight to shape said hams and to express air out of the package article. These and other inefficiencies and drawbacks are overcome by the present invention as will be appreciated from the disclosure herein.
With this then being the state of the art, the present invention was conceived and developed.
According to a first aspect of the invention there is provided an apparatus for the continual stuffing of pliable articles into discrete lengths of flexible tubular casing comprising a frame; a stuffing horn assembly mounted on said frame; a stuffing horn assembly central support tube disposed coaxially with said stuffing horn assembly, having a discharge end and a flared inlet end an article loading chamber in communication with the flared inlet end of the central support tube; closure means on said article loading chamber moveable between open and closed positions providing lateral access to said article loading chamber when in the open position; a compression means extending longitudinally of said article loading chamber, moveable between a retracted position and an extending position, having a formed face which defines a wall portion of the article loading chamber when in said extended position; actuating means operably connected to move the compression means selectably into its retracted and extended positions; piston means disposed in longitudinally axial alignment with the central support tube of the stuffing horn assembly, having an article contacting face; actuating means operably connected to said piston means arranged and disposed to move said piston means in multistage operation sequentially in a first stage from a first position wherein said article contacting face is disposed at the rearward end of the article loading chamber, through said article loading chamber into a second position wherein said article contacting face is disposed at the flared inlet end of the central support tube, and in a second stage from a first position wherein said article contacting face is disposed at the flared inlet end of the central support tube, through said central support tube into a second position wherein said article contacting face is disposed at the discharge end of the central support tube; air passage means arranged and disposed for the venting of air
expelled from said central support tube and from the package article being formed; shirred casing
holding means disposed coaxially on the stuffing
horn assembly, arranged and disposed to provide
a continuous deshirred supply of casing to be
stuffed with said pliable articles; and holdback
means arranged and disposed for restraining said continuous deshirred supply of casing during stuffing of said flexible tubular casing.
According to another aspect of the invention there is provided a method for the stuffing of a pliable article into flexible tubular casing comprising:
a.) depositing a pliable article in alignment with a tubular passage adjacent an inlet end thereof;
b.) laterally compressing the pliable article to a condition wherein its cross sectional area is smaller than its initial cross sectional area and larger than the cross sectional area of the tubular passage means;
c.) longitudinally forcing the compressed pliable article into the tubular passage means;
d.) pushing the compressed pliable article through said tubular passage means to and through the end thereof and into a clip closed end of a casing length;;
e.) continually supplying under a restraining holdback force, a casing length concurrently with the pushing of the pliable article thereinto until said pliable article is completely encased;
f.) continually venting air, which would otherwise be entrained in the casing length, from the casing length as it is being stuffed with the pliable article;
g.) clip closing the casing length on the encased pliable article; and
h.) severing the encased pliable article from the continuous casing length.
Accordingly, the invention provides a method and apparatus for inserting a whole boneless meat article, such as a ham, into a preclipped end of a preshirred and mounted length of casing, under continuous pressure, while allowing the continuous escape of air tending to become entrapped during the insertion or stuffing process, gathering and clipping the open end of the stuffed casing while maintaining the encased product in a pressurized condition, gathering and clipping the deshirred end of a contiguous succeeding preshirred casing length, severing the completed stuffed product from the succeeding casing, and repeating the aforedescribed cycle after loading a next sequential meat article into the apparatus.
The basic concept and development of the present invention involves the adaptation and application of some of the principles and features of large size sausage casing manufacture with automatic machinery, such as described in the aforementioned U.S. Patents 4,017,941 and 4,044,426, to automatic stuffing of whole boneless hams or the like meat articles into casing lengths to make discrete tightly packed encased food articles.
A principal objective of the present invention is to provide a fast automatic method and apparatus for the pressure packing of whole boneless hams, or similar meat cuts, into large size tubular flexible casings.
The invention further provides positive and consistently reproducible control over the continually formed products with minimal human labor and handling of the food product, and with an efficient and relatively uncomplicated apparatus.
An advantageous feature of the invention is its ability to use shirred and compacted casing lengths, such as those shown and described in
U.S. Patent 4,007,761, which do not require any prestuffing soaking.
A further feature of the invention is its ability to effect size control of the end product if this is desired.
Still further advantageous features of the invention are its capabilities to stuff product with virtually complete elimination of entrained air, and to consistently make stuffed products with proper external fat cover and proper muscle orientation.
The invention further provides for the constant pressurization of the meat during stuffing and clipping, thus eliminating the need for a separate pressure packing or squeezing step operation to effect air removal and to shape the meat.
Further, and of significant import, is the invention's provision of greatly increased production rates with decreased operator manpower requirements.
The present invention will now be described further, by way of example only, with reference to the accompanying drawings, in which: Figure 1 is a sectionalized side elevation of apparatus according to the invention showing a boned whole ham in position in the apparatus loading chamber;
Figure 2 is a partial top view of the apparatus of
Figure 1 showing the manner in which the meat article to be stuffed is initially put under compression;
Figure 3 is a sectional view of Figure 2 taken along lines 3-3 showing an end view of the loading chamber and meat compression apparatus;
Figure 4 is the apparatus of Figure 1 shown with the loading chamber cover closed and with lateral compression fully effected;
Figure 5 is a sectional view of Figure 4 taken along the lines 5-5 showing an end view of the meat article in the chamber in its compressed condition; ;
Figure 6 is the apparatus of Figure 1 shown with the meat article pushed into and partially through the stuffing horn by the first piston means;
Figure 7 shows the meat article pushed completely through the stuffing horn and into the casing by the second piston means; and
Figure 8 shows the apparatus of Figure 1 with
the meat article completely encased, the casing
severed, the piston means fully retracted, and with
the loading chamber opened.
Figure 9 is an isometric view of the loading
chamber illustrating the product orientation
guides or ribs.
In general it can be stated that the present invention comprehends apparatus for continual
stuffing of whole boneless meat articles or other
plieable articles into discrete lengths of flexible
tubular casing comprising, in combination: a
frame; a stuffing horn assembly mounted on said
frame; a stuffing horn assembly central support
tube disposed coaxially within said stuffing horn
assembly, having a discharge end and a flared
inlet end; an article loading chamber in
communication with the flared inlet end of the
central support tube; closure means on said article
loading chamber moveable between opened and
closed position providing lateral access to said
article loading chamber when in the open position;
locking means to secure said closure means in the
closed position; a compression bar extending
longitudinally of said article loading chamber,
moveable between a retracted position and an
extended position, having a formed face which
defines a wall portion of the article loading
chamber when in said extended position;
actuating means operably connected to move the
compression bar selectably into its retracted and
extended positions; first piston means disposed in
longitudinally axial alignment with the central
support tube of the stuffing horn assembly having
an article contacting face and being moveable
between a first position wherein the article
contacting face is disposed at the rearward end of
the article loading chamber, and the second
position wherein the article contacting face is
disposed in the flared inlet end of the central
support tube; second piston means disposed
coaxially within said first piston means having an
article contacting face reciprocally moveable
between a first position wherein said article
contacting face is disposed in the flared inlet end
of the central support tube and the second i position wherein the article contacting face is
disposed at the discharge end of the central
support tube of the stuffing horn assembly; shirred
casing holding means disposed coaxially around
the stuffing horn assembly and arranged to
provide a continuous deshirred supply of casing to
be stuffed over the stuffing horn assembly central
support tube discharge end in the direction of
progression of the meat articles being packed;
clipping means and severing means to clip the
casing discrete lengths closed and to sever
between clipped sections so as to make individual
lengths of product; and motive means to drive the
first and second piston means reciprocally.
The stuffing horn assembly which includes the
central support tube with the inlet end and the
discharge end serves as a conduit to convey whole
boneless hams from the meat loading chamber
connected at its flared inlet end into a casing which is deshirred from a mounted shirred casing supply stick arranged concentrically over the assembly. The meat loading chamber has a first end in communication with the flared inlet end of the central support tube, a chamber door including means for the closing, locking and automatic reopening of the door, and is provided with means for the lateral compression of a meat mass placed within said chamber. The second or rearward end of the meat loading chamber connects to a longitudinal product stuffing means comprising first and second pistons.
The longitudinal product stuffing means comprises a multistage piston adapted to be advanced and retracted longitudinally in axial alignment with the meat loading chamber and the central support tube. The first stage of the piston array is adapted to move through the meat loading chamber to the flared inlet end of the central support tube and thereby advance a meat mass from the meat loading chamber into the central support tube. The second stage of the piston means moves concentrically through the first stage piston through the central support tube to its discharge end thus further advancing the meat mass completely into a deshirred length of the prepackaged food casing article. The movement of the second piston means begins after the completion of the movement of the first piston means.
A support sleeve may be advantageously journaled on the central support tube and provides means adapted to mount and detachably secure a sizing disc which is implanted in a preshirred tubular food casing article used in the packaging method. In the embodiments illustrated in the drawing the sizing means or disc is adapted to allow the escape of air displaced from the central support tube during the stuffing operation. Said adapted disc also permits the continuous escape of any air which may be entrained within the encased food product as stuffing progresses.The air passes from the forward end of the section of casing being stuffed up over the discharge end of the central support tube of the stuffing horn assembly, through the space between the inner surface of the casing and the outer surface of the central support tube of the stuffing horn assembly and through the passages provided in the sizing disc. It is extremely important to emphasize at this point in the disclosure the necessity to provide for the escape of air which would otherwise be entrapped within the encased food product during the stuffing operation. Towards this end, various alternative forms of air venting may be provided.
In the embodiment of apparatus according to the invention illustrated in the drawing, air vents 62 are provided in the sizing disc 26. In other embodiments of the apparatus according to the invention, those for instance wherein a sizing disc may not be involved in the apparatus but holdback of the casing is achieved by the application of an external peripheral force around the casing in a snubbing action, the provision for air vents may take the form of a loose sleeve fit between the central support tube and a support sleeve or a loose fit between the central support tube or the support sleeve and a sleeve holding the shirred
casing in place. The venting of air rearward from the stuffing operation may also be accomplished by providing longitudinally extending flutes in the surface of the central support tube or whatever its structural equivalent may be in a given apparatus.
The air would thus pass through the longitudinally extending flutes or notches rearward to be expelled through the open end of the bore of the casing. Other forms of air venting will, in the light of this disclosure, undoubtedly occur to persons familiar with the art, and it is sufficient to note
here that provision for air venting must be made in order to insure the elimination of air which would otherwise be entrapped in the finished product, this provision being by any of the aforedescribed structural features or their combinations or their equivalents.
The prepackaged food casing article utilized with this apparatus, comprising a sizing/air venting means and a preshirred tubular food casing, is preferably like those described in detail in U.S. Patent 4,007,761. The support sleeve is adapted to be reciprocated to-and-fro to thereby
manipulate the secured sizing/air venting means to predetermined fore-and-aft positions while supporting the shirred tubular casing thereon.
The apparatus also employs a snubbing means including a snubbing carriage adapted to be axially aligned with the central support tube of the stuffing horn assembly and mounting an annular snubbing ring adapted to be advanced over and retracted thereform. The snubbing means coacts with the sizing/air venting means ot effect product size (diameter) control in the same manner as that described in U. S. Patent 4,164,057. The snubbing carriage also mounts conventional clipclosing means and a severing means. In its retracted position, distally spaced from the stuffing horn assembly, the snubbing carriage is also adapted to be moved transversely from and to the axis of the central support tube to permit the loading and securing of the prepackaged shirred casing article onto the support sleeve means.
Motive means are provided to operate the support sleeve means and the snubbing means to regulate the position of the snubbing means with respect to the central support tube and the position of the support sleeve means relative to the snubbing means.
Pneumatic actuation and control means are used to operate the support sleeve means, the meat loading chamber locking means, the lateral compression means, the longitudinal product stuffing means, and other elements of the snubbing carriage, in combination to selectively control continual cycles of successive compression, stuffing, clipping, and severing operations, and thereby produce a pressurized, stuffed, clip-closed whole boneless ham product encased in a flexible tubular casing. It should be pointed out that while the disclosed embodiments utilize full pneumatic control, hydraulic or electro/pneumatic actuation and control means would be fully satisfactory alternatives.
Turning to the drawing, Figure 1 shows apparatus according to the invention comprising a frame 1 6 on which is mounted a stuffing horn assembly 1 8. The stuffing horn assembly comprises in turn a central support tube 30 disposed coaxially within the stuffing horn assembly, having a discharge end 29, and a flared inlet end 31. Rearward and communicating with the flared inlet end 31 of the central support tube 30, an article loading chamber 34 is provided.
Article loading chamber 34 has a door or other closure means 42 which lifts hingedly or slideably to permit access to the article loading chamber.
When the closure means 42 of article loading chamber 34 is in its fully open position, the chamber appears as shown in Figure 2, that is to say with its maximum volume condition available for loading the article to be packed. Figure 3 of the drawing shows an end view of the apparatus in this condition. Loading chamber door lock cylinders or locking means 48 are provided to secure the closure means 42 in the closed position. An article compression bar 36 extends longitudinally of the article loading chamber 34 and is provided with a formed face 35.
Compression bar 36 is actuated reciprocally by lateral compression bar cylinders 50 shown in
Figures 2 and 3 in the retracted position. When these actuating cylinders are energized the compression bar 36 is extended to the position shown in Figure 5 of the drawing wherein the formed face 35 defines a wall portion of the article loading chamber 34. A multiple acting piston arrangement is provided comprising first piston means 54 and a second piston means 58, arranged in alignment with the article loading chamber 34 and with the central support tube 30 of the stuffing horn assembly 18. In the embodiment shown, the second piston means 58 is arranged coaxially within a cylinder formed in the first piston means 54 so that initially, the two units together consitute one acting piston.The pistons may be served by one face of the second piston as shown in the drawing or, alternatively, be provided with separate article contacting faces, one being annular in form and being in effect the rim end or edge of the first piston means 54, and the other circular in form being the face of the second piston means 58. In any case, it is only necessary that the piston means be provided so as to operate in two stages, one stage to push the laterally compressed body of meat or whatever other pliable article is involved forward through the loading chamber when it is in its closed condition into the through the flared end of the central support tube and then, in the second stage of operation, completely through the central support tube to the discharge end thereof where the meat is put into contact with the clip closed leading edge of the casing being filled. In order to avoid the possibility of trapping portions of meat between the end of the first piston means 54 and the flared inlet end 31 of the central support tube 30, the face of second piston means 58 should never be allowed to extend beyond the rim end or edge of first piston means 54 until the stuffing motion of first piston means 54 has been fully completed.
The embodiment illustrated in the drawing provides for the front end mounting of a shirred casing stick 22 coaxially disposed on the support sleeve 24 of the stuffing horn assembly 1 8. The casing mounted in this manner is controlled with regard to its movement by means of a sizing disc 26 mounted in a retainer recess in the support sleeve 24 and controlled with regard to maintaining feed pressure as it is being deshirred by means of a casing slack cylinder 68. The operable features and characteristics of the casing stick 22 as it is controllably deshirred in this manner are the same as those explained in U.S.
Patent 4,044,426. A snubbing carriage 20 is provided at the front or discharge end of the apparatus and comprises clipping means 70 and 74 and severing means 76 to clip the casing discrete lengths closed and to sever between clipped sections so as to make individual lengths of product 78. An automatically actuated pneumatic cylinder 56 is arranged with one end fixed and a moveable end attached to a yoke which drives the multistaged piston means 54, 58 through its sequential cycles.
In a given instance, it is conceivable that someone may wish to operate the apparatus according to the invention without the clipping and severing features, that is to say to perform these functions at some other point in the production line.
Figure 9 of the drawing is an isometric illustration of the article loading chamber shown in open condition and with the piston means disposed in free body orientation, the lateral compression bar 36 and its actuating cylinders 50 shown in their retracted position, and illustr3ting an embodiment of the invention which involves the employment of ribs 82 arranged longitudinally in the wall portions of the loading chamber. One of the ribs 82 is incorporated into the lateral compression bar as shown and the other two are arranged in the arcuate wall of the fixed portion of the article loading chamber. The purpose of these ribs when used in an embodiment of apparatus according to the invention, is to provide orientation lands or rifling features for the guidance of the ham being packaged in a correct and accurate linear mode.It has been found in practice that the inclusion of such ribs in the apparatus avoids the problems of muscle and fat disorientation and the unattractive twisting of the ham product as it is being stuffed into the stuffing horn assembly and the casing.
The typical mode of operation is as follows:- The snubbing carriage 20 is moved to the transverse loading position. A prepackaged shirred food casing article 22 is placed on the support sleeve 24, attachment being made via the fingers of the sizing disc 26. The snubbing carriage 20 is then moved transversely so that the central axis of the snubbing ring 28 is aligned with the central axis of the central support tube 30.
With the apparatus in the reset position, Fig. 1, a whole boneless ham 32 is placed in meat loading chamber 34. As shown in Figs. 2 and 3, the initial position of lateral compression bar 36 allows adequate space laterally, and the depth of the meat loading chamber (approximately 5 inches compared to the central support tube diameter of approximately 3.5 inches or less) allows adequate depth so that the meat mass can be properly arranged preparatory to stuffing. That is to say the ham muscles 38 are arranged to lie parallel to the direction of stuffing, and the fat cover 40 is positioned so that it remains as the outside layer of the meat mass after stuffing.
As the meat loading chamber door 42 is closed, limit switch 44 shown in Figure 5 is activated initiating the machine cycle. All subsequent machine actions are automatically sequenced. The snubbing carriage 20 moves to the stuffing position, as shown in Fig. 4. Meat loading chamber door locks 46 are activated by cylinders 48. The product compression bar 36 is moved laterally by compression bar cylinders 50, compressing the meat mass to initial diameter "A" as shown in Fig. 5. When the lateral compression bar 36 is fully extended, it is locked in place.
First-stage piston 54, activated by pneumatic cylinder 56, pushes the meat mass 32 into the central support tube 30, as shown in Fig. 6. At the completion of the stroke of first-stage piston 54, second-stage piston 58 starts pushing the meat mass through the central support tube and into a deshirred section of food casing 60. The firststage piston 54 serves as the pneumatic cylinder for the activation of the second-stage piston 58.
As the meat mass is pushed from the meat loading chamber 34 into a deshirred end of the preclipped casing 60, it is preceeded by a relatively large volume of air. Said volume of air is entrapped between said meat mass and the clipped end of the casing, and is proportional to the volume of the central support tube. Provision must be made for the release of said air as the ham is stuffed into the central support tube and into the casing so as to avoid blowing the clipped end of the casing open. Air escape paths are provided by means of vents 62 in sizing disc 26, allowing entrapped air to pass through said vents and escape between the bore 64 of the shirred casing stick and the outer surface of the support sleeve 24. The importance of and alternative modes of air venting are discussed hereinabove.
Continuous pressurization of the meat mass and size control of the stuffed product are maintained during stuffing through the application of a holdback force. Said holdback force may be achieved through the coaction of annular snubbing ring 28 and sizing disc 26 in a manner similar to that described in U. S. Patent 4,077,090. While sealing ring 66 coacts with central support tube 30 to prevent meat product from backflowing into the as yet unfilled zones in the deshirring casing, the clearance between said sealing ring and said central support tube allows the free escape of air from the casing to and through the vents 62 in the sizing disc 26.
Pressurization of the meat mass is maintained during stuffing and clipping, eliminating the necessity for a separate and subsequent presstying operation.
Upon completion of the stroke of the secondstage piston as shown in Fig. 7, the casing slack cylinder 68 extends and retracts the shirred stick mounted on support sleeve 24. This action provides a section of loose casing. The secondstage piston 58 remains in position at the discharge end of the central support tube 30 while slacking takes place, thus maintaining pressurization of the encased product. The casing immediately behind the encased meat product is gathered and clipped by the second tie clipper 70.
The compression bar 36 is unlocked as the firststage piston 54 and second-stage piston 58 are retracted.
With the second tie clipper 70 still engaged, the snubbing carriage 20 indexes to the pretie clip position as shown in Fig. 8, carrying the encased product with it. When the first-stage piston 54 has been fully retracted, the lateral compression bar 36 retracts. The meat loading chamber door locks 46 disengage, and the chamber door 42 is opened by pneumatic cylinder 72. The machine is now ready for reloading.
Reloading can proceed as the pretie clip is automatically applied to the loose section of casing behind the clipped-closed stuffed product by the pretie clipper 74. The casing severing knife 76 then severs the casing between the clippedclosed end of the encased product and the pretie clip. Both clippers are then opened and the casing knife is retracted. The snubbing carriage 20 returns to the "stuff" position as shown in Fig. 4, prior to the commencement of stuffing. If the snubbing carriage has not returned to the "stuff" position at the time the "start" limit switch 44 is activated by the manual closing of the meat loading chamber door 42, the stuffing cycle is automatically delayed until the snubbing carriage moves to said "stuff" position.
A preferred apparatus according to the invention can be constructed exactly in accordance with the detail of the figures of the drawing presented herein. The structural components are made preferably of stainless teel or aluminum with the plastic part thereof, such as for instance the formed face portion of the lateral compression bar, made of nylon, high density polyethylene or the like suitable materials conventionally used in the handling of food products. Assembly of the parts is made preferably with welding for the rigid parts which are not to be disassembled for routine maintenance and with the parts that are to be disassembled for routine maintenance with nuts, lock washers, etc.
The preferred energy for actuation of the machine is standard plant air pressure at, for example, 80 psig with control pressure reduced through a pressure reducing station to 50 psig. It
has been found through experience that the
preferred angle rate of the tapered edge at the rear
of the central tube which defines the stuffing horn
should be about 1 50 from the horizontal. This presents a gradual reduction in the cross sectional area of the meat which avoids undue jamming or distortion of the muscle structure and fat cover.
The ribs 82 installed in the side walls of the article loading chamber 34, one of them being shown in the face 35 of lateral compression bar 36, are preferably made of stainless steel. Appropriate notches can be formed in the circumferential walls of the piston means to accommodate passage of the piston along the guide members as the piston progresses through the article loading chamber.
The article contacting surface of the piston means may advantageously be perforated with venting holes so that in retracting same from the discharge end of the central tube, no vacuum will be formed between the piston face and clip closed end of the next to be filled casing segment. The formation of such vacuum would, of course, tend to pull the casing back into the stuffing horn assembly central tube and create an undesireable malfunction or slow down the operation. Casing breaks can therefore be avoided by the simple expedient of including perforations in the piston face.
With the apparatus constructed in accordance with the above outlined specifications and physically and dimensionally in accordance with the drawing included in the application, apparatus according to the invention has been successfully operated at stuffing rates of between 8 and 9 hams per minute on 30 ham piece runs. With complete training of personnel who operate the machine it is possible to attain the rate of the packaging at 10 hams per minute.
Claims (11)
1. An apparatus for the continual stuffing of pliable articles into discrete lengths of flexible tubular casing comprising a frame; a stuffing horn assembly mounted on said frame; a stuffing horn assembly central support tube disposed coaxially with said stuffing horn assembly, having a discharged end and a flared inlet end; an articleloading chamber in communication with the flared inlet end of the central support tube; closure means on said article loading chamber moveable between open and closed positions providing lateral access to said article loading chamber when in the open position; a compression means extending longitudinally of said article loading chamber, moveable between a retracted position and an extended position, having formed face which defines a wall portion of the article loading chamber when in said extending position; actuating means operably connected to move the compression means selectably into its retracted and extended positions; piston means disposed in longitudinally axially alignment with the central support tube of the stuffing horn assembly, having an article contacting face; actuating means operably connected to said piston means arranged
and disposed to move said piston means in
multistage operation sequentially in a first stage
form a first position wherein said article
contacting face is disposed at the rearward end of
the article loading chamber, through said article
loading chamber into a second position wherein
said article contacting face is disposed at the
flared inlet end of the central support tube, and in
a second stage from a first position wherein said
article contacting face is disposd at the flared inlet
end of the central support tube, through said
central support tube into a second position
wherein said article contacting face is disposed at
the discharge end of the central support tube; air
passage means arranged and disposed for the
venting of air expelled from said central support
tube and from the package article being formed;
shirred casing holding means disposed coaxially
on the stuffing horn assembly, arranged and
disposed to provide a continuous deshirred supply
of casing to be stuffed with said pliable articles;
and holdback means arranged and disposed for re
straining said continuous deshirred supply of
casing during stuffing of said flexible tubular
casing.
2. Apparatus as claimed in claim 1 further
comprising casing clipping and casing severing
means to clip casing discrete lengths closed, and
to sever between clipped sections so as to make
individual lengths of product.
3. Apparatus as claimed in claim 1 or 2 in
which said piston means comprises a first piston
having an article contacting face and a second
piston concentrically disposed in the first piston
and having an article contacting face, the article
contacting face on the first piston and the article
contacting face on the second piston together
comprising said article contacting face on said
piston means.
4. Apparatus as claimed in claim 3 in which the
activating means operably connected to said
piston means is arranged to move said first piston
and said second piston together through said first
stage, and said second piston through said second
stage.
5. Apparatus as claimed in claim 3 or 4 in which said second piston has an article contacting
face which is perforated with venting holes.
6. Apparatus as claimed in any preceding claim
wherein said article loading chamber comprises means providing orientation and guidance of said pliable articles in an accurate linear mode when said piston means is actuated from said first stage first postion to said second stage second position.
7. A method for the stuffing of a pliable article into flexible tubular casing comprising:
a) depositing a pliable article in alignment with a tubular passage adjacent an inlet end thereof;
b) laterally compressing the pliable article to a condition wherein its cross sectional area is smaller than its initial cross sectional area and larger than the cross sectional area of the tubular passage means;
c) longitudinally forcing the compressed pliable article into the tubular passage means;
d) pushing the compressed pliable article through said tubular passage means to and through the end thereof and into a clip closed end of a casing length;
e) continually supplying under a restraining holdback force, a casing length concurrently with the pushing of the pliable article thereinto until said pliable article is completely encased;;
f) continually venting air, which would otherwise be entrained in the casing length, from the casing length as it is being stuffed with the pliable article;
g) clip closing the casing length on the encased pliable article; and
h) severing the encased pliable article from the continuous casing length.
8. A method as claimed in claim 7, wherein said holdback force is sufficient to maintain said pliable article under constant pressurization during steps b through g.
9. A method as claimed in claim 7 or 8 wherein said pliable article is a meat article and said holdback force is sufficient to encase the meat article under pressurization sufficient to eliminate the need for subsequent pressure packing and shaping of the encased meat.
1 0. Apparatus for the stuffing of pliable articles into discrete lengths of flexible tubular casing constructed and arranged and adapted to operate substantially as hereinbefore described with reference to the accompanying drawings.
11. A method for stuffing a pliable article into a flexible tubular casing substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14290780A | 1980-04-23 | 1980-04-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2075459A true GB2075459A (en) | 1981-11-18 |
GB2075459B GB2075459B (en) | 1984-06-20 |
Family
ID=22501763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8112423A Expired GB2075459B (en) | 1980-04-23 | 1981-04-22 | Stuffing a pliable article into a casing |
Country Status (19)
Country | Link |
---|---|
JP (1) | JPS609766B2 (en) |
AR (1) | AR225667A1 (en) |
AU (1) | AU537377B2 (en) |
BE (1) | BE888526A (en) |
BR (1) | BR8102447A (en) |
CA (1) | CA1168507A (en) |
CH (1) | CH640391A5 (en) |
DE (2) | DE3115717A1 (en) |
DK (1) | DK180281A (en) |
ES (2) | ES8206150A1 (en) |
FI (1) | FI70775C (en) |
FR (1) | FR2481226B1 (en) |
GB (1) | GB2075459B (en) |
IE (1) | IE51398B1 (en) |
IT (1) | IT1211026B (en) |
NL (1) | NL8101978A (en) |
NO (1) | NO811349L (en) |
SE (1) | SE8102505L (en) |
ZA (1) | ZA812451B (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0064266A1 (en) * | 1981-05-01 | 1982-11-10 | Viskase Corporation | Stuffing method and apparatus |
EP0090410A1 (en) * | 1982-03-31 | 1983-10-05 | Union Carbide Corporation | Apparatus for stuffing large meat articles |
FR2541650A1 (en) * | 1983-02-28 | 1984-08-31 | Grace W R Ltd | PROCESS AND DEVICE FOR PACKAGING MOLDED MEAT IN VACUUM |
EP0126474A1 (en) * | 1983-05-20 | 1984-11-28 | Viskase Corporation | Stuffing apparatus and cusing article |
EP0159151A1 (en) * | 1984-03-24 | 1985-10-23 | Mateline Automation Limited | Apparatus for pumping plastics materials |
EP0180211A1 (en) * | 1984-11-01 | 1986-05-07 | Viskase Corporation | Composite shirred casing article with cored high density shirred casing and method of using same and production thereof |
US4672793A (en) * | 1984-01-06 | 1987-06-16 | W. R. Grace & Co. | Molded meat vacuum packaging |
EP0268206A1 (en) * | 1986-11-17 | 1988-05-25 | INOX MECCANICA S.r.l. | Forming, filling and clipping machine for food products. |
EP1899224A2 (en) * | 2005-06-16 | 2008-03-19 | Poly-Clip System Corp. | Breech loader |
ITMO20090056A1 (en) * | 2009-03-16 | 2010-09-17 | Salumificio Rugiada Di Galloni Clau Dio & C S N C | METHOD TO OBTAIN A FOOD AND ITEMS PRODUCT. |
ITMO20130037A1 (en) * | 2013-02-15 | 2014-08-16 | Graft System Di Rabitti Enrico & C S A S | PROSCIUTTO OF CONFORMED PIG, PROFILING PRESS AND RELATIVE METHOD |
ITMO20130239A1 (en) * | 2013-08-19 | 2015-02-20 | Graft System Di Rabitti Enrico & C S A S | PROFILING PRESS FOR CONFORMED PORK HAM AND RELATIVE METHOD |
US11202452B2 (en) | 2019-04-08 | 2021-12-21 | Provisor Technologies, Inc. | Apparatus and method for cutting meat products into blocks of meat |
CN117571481A (en) * | 2024-01-17 | 2024-02-20 | 山东海奥斯生物科技股份有限公司 | Device and method for detecting shrinkage tightness of collagen casing |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NZ200366A (en) * | 1981-05-01 | 1986-07-11 | Union Carbide Corp | Cored high density shirred food casing |
JP2006230234A (en) * | 2005-02-23 | 2006-09-07 | Asahi Giken Kk | Automated ham product-packaging equipment |
FR2912982B1 (en) | 2007-02-26 | 2009-07-31 | Corentin Desbois | DEVICE FOR MOVING ON SNOW |
DE102007023328A1 (en) | 2007-05-16 | 2008-11-20 | Anders Agil Gmbh | Warm meat packaging equipment for packing of piece of meat into section of hose, is provided with clamp within area of opening for guidance of hose section of intended hollow body |
DE202009003326U1 (en) * | 2009-03-07 | 2010-08-19 | Schröder Maschinenbau KG | Device for filling products from meat, fish or poultry |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4044426A (en) * | 1975-10-30 | 1977-08-30 | Union Carbide Corporation | Stuffing apparatus |
-
1981
- 1981-04-08 CA CA000375016A patent/CA1168507A/en not_active Expired
- 1981-04-13 ZA ZA00812451A patent/ZA812451B/en unknown
- 1981-04-16 CH CH257181A patent/CH640391A5/en not_active IP Right Cessation
- 1981-04-16 AU AU69650/81A patent/AU537377B2/en not_active Ceased
- 1981-04-18 DE DE3115717A patent/DE3115717A1/en not_active Withdrawn
- 1981-04-18 DE DE8111750U patent/DE8111750U1/en not_active Expired
- 1981-04-21 JP JP56059308A patent/JPS609766B2/en not_active Expired
- 1981-04-21 AR AR285022A patent/AR225667A1/en active
- 1981-04-21 ES ES501512A patent/ES8206150A1/en not_active Expired
- 1981-04-21 IT IT8121303A patent/IT1211026B/en active
- 1981-04-21 NO NO811349A patent/NO811349L/en unknown
- 1981-04-21 FI FI811236A patent/FI70775C/en not_active IP Right Cessation
- 1981-04-21 SE SE8102505A patent/SE8102505L/en not_active Application Discontinuation
- 1981-04-22 IE IE893/81A patent/IE51398B1/en unknown
- 1981-04-22 DK DK180281A patent/DK180281A/en not_active Application Discontinuation
- 1981-04-22 FR FR8107985A patent/FR2481226B1/en not_active Expired
- 1981-04-22 GB GB8112423A patent/GB2075459B/en not_active Expired
- 1981-04-22 NL NL8101978A patent/NL8101978A/en not_active Application Discontinuation
- 1981-04-22 BE BE0/204578A patent/BE888526A/en not_active IP Right Cessation
- 1981-04-23 BR BR8102447A patent/BR8102447A/en unknown
-
1982
- 1982-03-31 ES ES510999A patent/ES8303035A1/en not_active Expired
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0064266A1 (en) * | 1981-05-01 | 1982-11-10 | Viskase Corporation | Stuffing method and apparatus |
EP0090410A1 (en) * | 1982-03-31 | 1983-10-05 | Union Carbide Corporation | Apparatus for stuffing large meat articles |
FR2541650A1 (en) * | 1983-02-28 | 1984-08-31 | Grace W R Ltd | PROCESS AND DEVICE FOR PACKAGING MOLDED MEAT IN VACUUM |
EP0126474A1 (en) * | 1983-05-20 | 1984-11-28 | Viskase Corporation | Stuffing apparatus and cusing article |
US4672793A (en) * | 1984-01-06 | 1987-06-16 | W. R. Grace & Co. | Molded meat vacuum packaging |
EP0159151A1 (en) * | 1984-03-24 | 1985-10-23 | Mateline Automation Limited | Apparatus for pumping plastics materials |
EP0180211A1 (en) * | 1984-11-01 | 1986-05-07 | Viskase Corporation | Composite shirred casing article with cored high density shirred casing and method of using same and production thereof |
EP0268206A1 (en) * | 1986-11-17 | 1988-05-25 | INOX MECCANICA S.r.l. | Forming, filling and clipping machine for food products. |
EP1899224A2 (en) * | 2005-06-16 | 2008-03-19 | Poly-Clip System Corp. | Breech loader |
EP1899224A4 (en) * | 2005-06-16 | 2010-02-17 | Poly Clip System Corp | Breech loader |
ITMO20090056A1 (en) * | 2009-03-16 | 2010-09-17 | Salumificio Rugiada Di Galloni Clau Dio & C S N C | METHOD TO OBTAIN A FOOD AND ITEMS PRODUCT. |
ITMO20130037A1 (en) * | 2013-02-15 | 2014-08-16 | Graft System Di Rabitti Enrico & C S A S | PROSCIUTTO OF CONFORMED PIG, PROFILING PRESS AND RELATIVE METHOD |
ITMO20130239A1 (en) * | 2013-08-19 | 2015-02-20 | Graft System Di Rabitti Enrico & C S A S | PROFILING PRESS FOR CONFORMED PORK HAM AND RELATIVE METHOD |
US11202452B2 (en) | 2019-04-08 | 2021-12-21 | Provisor Technologies, Inc. | Apparatus and method for cutting meat products into blocks of meat |
US11627745B2 (en) | 2019-04-08 | 2023-04-18 | Provisur Technologies, Inc. | Apparatus and method for flattening meat products |
CN117571481A (en) * | 2024-01-17 | 2024-02-20 | 山东海奥斯生物科技股份有限公司 | Device and method for detecting shrinkage tightness of collagen casing |
CN117571481B (en) * | 2024-01-17 | 2024-04-05 | 山东海奥斯生物科技股份有限公司 | Device and method for detecting shrinkage tightness of collagen casing |
Also Published As
Publication number | Publication date |
---|---|
CH640391A5 (en) | 1984-01-13 |
DK180281A (en) | 1981-10-24 |
NO811349L (en) | 1981-10-26 |
ZA812451B (en) | 1982-04-28 |
FI811236L (en) | 1981-10-24 |
ES501512A0 (en) | 1982-08-16 |
IT1211026B (en) | 1989-09-29 |
JPS609766B2 (en) | 1985-03-13 |
IT8121303A0 (en) | 1981-04-21 |
CA1168507A (en) | 1984-06-05 |
FR2481226A1 (en) | 1981-10-30 |
BE888526A (en) | 1981-10-22 |
NL8101978A (en) | 1981-11-16 |
AR225667A1 (en) | 1982-04-15 |
IE51398B1 (en) | 1986-12-24 |
BR8102447A (en) | 1981-12-29 |
GB2075459B (en) | 1984-06-20 |
IE810893L (en) | 1981-10-23 |
ES510999A0 (en) | 1983-02-01 |
ES8206150A1 (en) | 1982-08-16 |
AU6965081A (en) | 1981-10-29 |
AU537377B2 (en) | 1984-06-21 |
DE8111750U1 (en) | 1986-01-16 |
FI70775C (en) | 1986-10-27 |
SE8102505L (en) | 1981-10-24 |
FI70775B (en) | 1986-07-18 |
JPS5733534A (en) | 1982-02-23 |
ES8303035A1 (en) | 1983-02-01 |
FR2481226B1 (en) | 1986-05-23 |
DE3115717A1 (en) | 1982-03-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |