JPS62502607A - Packaging and loading machine equipment for thinly sliced food products - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] FIELD OF THE INVENTION The present invention relates to packaging equipment. More details In particular, the present invention provides a method for preventing packaging parts from spoiling while they are in the loading station of a packaging machine. Automatic stacking of food products into thermoformed plastic packaging It is related to the device that loads the material.

Description of prior art Thermoforming, vacuum used for packaging perishable thinly sliced food products One type of hermetic packaging machine is shown in U.S. Pat. No. 3,061,984. .

The machine is indexed through a series of packaging stations where continuous action takes place. , containing an endless row of trays each having two side-by-side cup-shaped molds. I'm here. As shown in the patent, the machine separates two webs of packaging material. The product group to be packaged is thermoformed into a cup-shaped container in a tray, and then the tray is Index through an open place inserted by hand. When loading the product, the cup-shaped heat The molded packaging parts still nest in the holes in the tray in which they were originally molded. Retained.

The second type of industrial knowledge widely used thermoforming and vacuum sealing machinery to package this kind of products The formula is shown in U.S. Patent No. 3,498,021, which is different from the previously described type. , one position non-indexing thermoforming mold, open place to load the product, and vacuum The difference is that there is a second set of molds used to seal the container. after this In machines of the type, the thermoformed web has film grips on both its edges. Indexed through the machine only by the chain and also extended in the direction of movement Supported by fixed rails. This type of packaging machine uses thermoforming during the loading operation. Added a vertically reciprocating mechanism with a mold that engages and supports the cup. It is advantageous to add

One object of the invention is to provide both types of machines mentioned above, as well as other types not described here. The goal is to obtain an excellent automatic loading device.

During the early development of thermoforming type vacuum packaging machinery, at least thermoforming into containers that received the product use only very thin and flexible packaging materials in was the common practice. Thus, under vacuum, all sides of such packaging The action of atmospheric pressure on the outer surface is such that the packaging material is forced to hold the inner product and still fit the product range. I brought it into contact with it and matched the shape perfectly. For this reason, and the material is extremely Due to their flexibility, these packages place undue stress on the packaging material, but still without putting undue stress on the seal, compared to the product when the packaging is completed. could be thermoformed to be too large. Of course, thin (sliced lunch) Loading stacks of foodstuffs, such as meat, into these oversized formations It was also relatively easy to do so. Still, in these early days, the appearance of the complete packaging is Rarely required and significant stacking errors and clutter of fragile products can make all the difference. It was considered unsustainable.

However, in recent years, two packaging features have become highly desirable or even mandatory. It appeared. The first new requirement is that the It was a package with aged-shaped parts. These packages are more easily opened increased user acceptance and increased user acceptance due to It was possible to give a significantly improved appearance to both. But these advantages , very carefully controlling the size of the product to fit exactly inside the packaging; and can only be obtained by very precise stacking of thinly sliced products. I quickly learned that I could do it. Thus, when using flexible packaging, Traditionally, loose-fitting, oversized, thermoformed cups and inaccurate sizing products are no longer accepted. One result is that the product is loaded by hand. becomes more difficult and often requires a lot of product rearrangement and handling by the operator. It needs handling. Problems can arise due to the use of oversized formations of semi-rigid material. I couldn't reduce it. This is because such packaging does not protect the product under vacuum. Completely, i.e. virtually completely, collapsed, and frequent packaging leaks and broken seals This often results in a very poor packaging appearance.

Even before the introduction of semi-rigid vacuum packaging, inner packaging companies at some point began using thin-slice packaging. Bacterial contamination during manufacturing operations was a major cause of reduced shelf life. . This contamination is primarily caused by difficult-to-clean machinery that comes into contact with the product and by operators. caused by close proximity and/or manual handling. That's why Therefore, it is impossible to obtain an automatic loading device that does not involve any significant human handling. Always desirable.

Summary of the invention The device of the present invention greatly reduces the number of products handled by the operator through completely automatic loading. You get this purpose sump machine that is easy to clean and easy to keep clean. It was developed in vain. Substantial differences between the devices of the present invention and prior art devices are intended to be No. 3,180,066, the most successful prior art device It will be better understood by comparing it with the device shown in Figure 1.

According to another aspect of the invention, relatively warm, highly flexible, relatively thin For example, 100 packets per minute of cut and stacked luncheon meat products. reliably at higher speeds than 50 cycles per minute, 2 packages per cycle. Then, without breaking, load it into a new tight-fitting, semi-rigid packaging recess. This results in a device that can do this.

The early autoloader made by U.S. Pat. No. 3,180,066 was It includes a pair of spring-loaded horizontal channels and doors through which the product is moved by a powered ram. pushed downward into a waiting container. This loading machine is very flexible and It has been relatively successful in filling thin stacks of water products at a reasonable rate. However, the product can only be loaded into flexible packaging formations that are too large. Ta. Considering such equipment, the lateral movement of individual products (i.e. across the machine (orientation inaccuracies) often occur, thus causing irregularities in prior art types of equipment. It was found that it was not possible to load it into the packaging.

The movement of the above products is carried out unevenly between the two trapdoors in the drop station. It was found that this occurs due to the rotational resistance of the spindle. The springs in these devices are built-in. , and the replacement basin is not accessible, and the adjustment device is provided. (For example, spring adjustment is desired when changing from a heavy stack to a light one.) (although this was known to be true).

Better product placement across the machine means that the spring forces on the door are exactly equal. It is possible to ensure simultaneous and equal angular movement of the two trapdoors, even if the I also learned that it can be done by Thus, in a further aspect of the invention, two It is possible to make the angular motions of the trapdoors equal. In another aspect, the force of the spring could be easily adjusted.

The position of the product above the trapdoor of the drop mechanism and whether the tray and/or product is loaded yet. It has also been found that it is desirable to minimize the vertical distance between It was. Ideally, this distance should add a small amount of clearance to the distance caused by the swinging of the trapdoor. It must not be larger than the original. The ideal is to move the product along a ramp-like path. reached by using a tilted conveyor, moving downwards to the loading station. It turns out that it can (or almost can) be accomplished. Like that The shape is the result of a formed wafer immediately preceding the loading position in this common type of packaging machine. This is particularly advantageous since it avoids collisions with devices occupying spaces above the web line.

It may also be desirable to simplify the loading mechanism and make it easier to keep clean. Understood. At one point this engages each product group and places it in a falling position above the trap door. has a simple reciprocating overhead push arm (described below) designed to accelerate Replacement of the overhead chain of the device shown in U.S. Patent No. 3.1 '20,066 achieved by The downward tilting conveyor allows for better stacking of products. An elongated slanted to convey from a high horizontal path to a lower horizontal position of the trap door It is shaped like an "s". The downward sweep of the “S” is around the center of rotation of the arm above the head. The shape of the oscillation is advantageously of approximately the radius of . Thus, in the falling position The desirable feature of the lower horizontal position and the simplicity of the device are the swinging arms and especially the pushing arms. A new construction with an inclined conveyor path with a suitably curved section adjacent to the path of the conveyor. achieved through a unique combination.

Smaller, simpler equipment with fewer product contact surfaces is inherently easier to clean. Ram pad, easy to keep but easy to remove Tilted conveyor that can be removed and tiltable infeed co. Additional measures to facilitate frequent deep cleaning, such as conveyors, are incorporated into the equipment design. It is included. Moreover, the main parts of the autoloader are thoroughly cleaned and other required It is designed to be moved backwards by sliding on rails for cleaning. Ru.

All major movements of the device are reliably controlled for maximum speed and repeatability It is driven reliably to ensure acceleration and deceleration. Engage the push arm product Only the surfaces are pneumatically moved to and from the engaged position. Because this design is quite simple, and the timing of the movement is less critical than others. Ru.

Of all the autoloaders known to exist, this one is the only one to be disclosed. Typical work involves stacking thinly cut luncheon meat that is prone to injury and sagging. It operated satisfactorily for loading under field conditions. U.S. Patent No. 4,478,024 Other devices disclosed in cut from, for example, a "large frozen loaf" and are therefore relatively hard. This is a different situation, as mentioned in the patent specification. This reference The patented device claims to be able to align the flakes within each stack. There is. However, most thin-sliced meat producers, for various reasons, opt for automatic alignment. Make it cold enough to be able to slide the flakes on top of each other. You don't want your product to be cut into thin pieces and packaged. Indeed, typical products that are relatively warm, very flexible, relatively thinly cut, and Aligning the slices in a stack of luncheon meat products As far as is known, no automatic device capable of this has yet been developed.

Other objects, aspects, and advantages of the invention will be apparent when considered in conjunction with the accompanying drawings. Partly pointed out in the following explanation of a particular example, and partly made clear from it. There will be.

Brief description of the drawing FIG. 1 is a perspective view of a part of a packaging machine according to the invention, showing in particular the loading station; figure, Figures 2 to 5 show how an automatic loading machine is used when loading thinly cut products. a schematic diagram illustrating the sequence of actions carried out; FIG. 6 is a side view showing the drive mechanism; Figure 7 is a side view of the loading station showing the ram and sweep arm; FIG. 8 is a diagram similar to FIG. 7 showing the sweeping action of the push plate; FIG. 9 is an end view showing the components of the trap door mechanism, and FIG. 10 is a side view of the mechanism shown in FIG. 9.

Description of a preferred embodiment Referring now to Figure 1, there is shown a portion of the packaging machine, designated in its entirety by the number 10. It is shown. The machine 10 is used for cutting thinly sliced food products such as luncheon meat. Includes a stainless steel mesh horizontal infeed conveyor 12 carrying stacks 15 of I'm here. Stacks of sliced food products are arranged in two parallel rows . Conveyor 12 is comprised of belts forming a downwardly sloping conveyor generally designated 18. Place the stack on top of sets 14 and 16.

Each of the belts 14 and 16 consists of three parallel strips made of polyurethane, for example. Contains long pieces. The bottom surface of each of these strips is connected to a sprocket. It is advantageously provided with teeth for reliable driving. For example, the belt It slides on a stainless steel conveyor 19 tilted downward at an angle of about 12°. Drive A flexible belt that moves can hold 15 stacks of thinly sliced products and separate the whole 2 The loading station packaging machine 10, designated 0, has side-by-side mold recesses 24 and 26. It is of the type having endless rows of packaging trays 22 to be produced. These trays are , through a series of packaging stations including loading station 20.

The downtime between each side-feeding stage is the period during which the tray is stopped at various stages. different packaging actions. Conveyor and automatic loader drive The motion is based on a conventional technology similar to that disclosed in Mahahui Patent No. 3,180,066, supra. This is done by the following mechanism. Cup-shaped containers are made of thermoformable plastic wafer. the tray by vacuum forming the tray downwardly into the tray recess in a known manner. It is made in A22.

The loading station 20 consists of a pair of side-by-side droplets, each having identical mechanisms. It includes a lower station 30. Therefore, these stations and their I will explain one part of the structure in detail.

Each drop station 30 is biased by side walls 32 and 34, a rear wall 36, and a spring. It includes revolving trapdoors 38 and 40. I'll explain the trap door in detail later. until stack 15 is moved down into a waiting container under the trap door. , has sufficient spring bias thereon to hold the stack of food products to be packaged. ing. Side walls 32 and 34 guide stack 15 into drop station 30. , and the rear wall 36 of the container where the stack 15 is waiting when the tray is stopped. Make sure the side walls are properly placed over the trapdoor so that the stack can be loaded inside. to help people.

Each loader includes a swinging push arm 42 mounted on a swinging shaft 44. push arm 42 is a mounting plate 46 that supports the air cylinder 48 and its operating rod 50. has. The actuation rod 50 includes a push plate 54 and a retractable push plate 54. A guide rod is installed in the plate 46 so as to be able to slide up and down to stabilize the movement of the It can move together with the bracket 52 supporting the bracket 56. retractable The push plate 54 swings and moves up and down as shown by arrow 59 in FIG.

The push plate 54 moves the product stack 15 to a dropping station by the forward movement of the push arm 42. 30, then retracted up and back over the rest of the product. Ru. It is then lowered again and deposits the next stack at drop station 30. is moved forward to sweep into the

Each loader also includes a ram 60 rigidly mounted on and moved by a shaft 62. Contains. The underside of the ram 60 is located above the top when the ram 60 is retracted. To prevent the flakes from sticking to the lamb batter, place the top flake of stack 15 and the lamb. C. has a groove 64 therein to limit page contact.

Next, we will discuss Figures 2 to 5. Stack of thinly sliced products 15 from the horizontal conveyor 12 to the downwardly inclined conveyor 18 and the trap door. Moved to 38 and 40. In FIG. 2, one tray 22 has a recess 24 cut into a thin layer. aligned below the drop station 30 to receive one stack of dropped products. shown in its location within the drop station. The push arm 42 is used for its return sweep. At the end there is a reed, and the push plate 54 has a ghost image in its vertically retracted position. indicated by law. The air cylinder 48 then moves the pusher arm 54 as shown in solid line. It operates to move downwards directly behind the next stack.

FIG. 6 shows that when pusher arm 42 swings about its axis, it moves stack 15 onto a falling platform. The push plate 54 is shown moving towards the station 30. Below the push plate 54 The oscillating arcuate path tilts the conveyor 18 downward for an effective loading motion. I pretty much followed the path I took. Preferably the conveyor (i.e. one conveyor 19) is It is arched at its lower end 18 to smoothly support the stack during movement.

Ideally, this arcuate curvature 18A would coincide with the arcuate path of the push plate, but in practice, The radius of curvature of the conveyor is smaller than the radius of the push arm 42.

The conveyor also smoothly transitions from horizontal conveyor 12 to inclined conveyor 18. , i.e. curved convexly at its upper end 18B in order to transfer without significant interruption. There is.

In FIG. 4, pusher arm 42 has reached the end of its forward sweep and stack 1 5 has been moved onto the trapdoor 38.40. Push board 54, then ghost painting method It can be retracted as shown in . As operation continues in FIG. Stack 15 by moving it downwards until it slides through the drop station trap door. Press into the recess 24 of 22. At the same time, the pusher with the pusher plate 54 retracted The arm 42 swings back behind the next stack 15. The shaft 62 is then connected to the ram 6 0 through the drop station and back up from the recess 24, then set and The ray 22 is indexed forward and the next mold (the recess 24 falls as shown in Figure 2). It is placed under the stain 30. This method is for two falling stations at a relatively high speed, such as 100 package loads per minute.

As shown in Figures 2 through 5, the spacing between consecutive stacks 15 is The spacing between the depressions 24 of the mold is considerably larger than the spacing between the depressions 24 of the mold. wider stacks like that of the stack when it begins its sweeping motion towards the drop station 30. This was chosen to provide sufficient clearance to ensure proper insertion of the pusher plate 54 between the It is. However, the device is dependent on the arrival of the stack and the mold at the drop station. This is done to give exact synchronicity between the arrival of the indentations. for that purpose , conveyor 18 (and co/veyor 12) is greater than the average speed of tray 22. It is moved at linear velocity.

For example, if you have a mold center-to-center spacing of 133.3 mil) (5.25 inches), In a commercial embodiment, the stack center-to-center spacing (nominal) is 178 mm (fin h). That is, the stacking is 178 mm (finches) per cycle of the machine. moving forward with a speed of 7 divided by 5.25 or about 1.34. ratio (average). Runs with a diameter of 114.3 mi’J (4.5 inches) In chonmeat, the spacing between successive stacks ensures reliable operation of automatic loading machines. The diameter was 63.5 mm (2.5 inches), which was sufficient to ensure that.

Referring now to FIG. 6, the sweeping action of pusher arm 42 and the operation of ram 60 are mechanically from a common drive shaft 66 rotated by a drive (not shown).

A cam 68 is mounted on the drive shaft 66 and is a retractable push plate. 54 is coupled to a control switch 74 of air cylinder 48 to control the position of air cylinder 48. Additionally, a cam follower 70 having a link 72 is provided.

While FIG. 7 shows the downward movement of push plate 54 that occurs upon actuation of control switch 74, FIG. 8 shows the retraction of the push plate at the end of the previous section of the sweep path of the push arm 42; This moves the push plate into position for picking up the next stack 15 from the conveyor 18. Raise for its backward movement.

One advantage of having a downwardly sloping conveyor 18 is that it is shown at 23 in FIG. This is to prevent collision with a packaging device placed above the tray 22, as shown in FIG. the Such devices may be used, for example, with deep forming plug-unstack attachments known in the art. It is a plug-assistance attachment. tilted con Bayer makes it possible to use such equipment while molding the stack 15. To minimize the falling distance of the container to be transferred to the recess 24.

Returning to Figure 6 - [To explain, the box can 76 is , attached to the drive shaft 66 1. It also supports the cam follower γ8. This driven The body is pinned to a crank arm 80 which pivots at one end of a shaft 82 about it. Ru. The other end of the crank arm 80 has a shaft 86 attached to a U-ring attached by a pin 88. It is firmly attached by a pin 83 through a hook 84.

The rod 86 is connected to a swing arm 92 by a coupling tube 90, and the swing arm 92 is connected to a grip 94. Therefore, it is firmly attached to the rotation shaft 96. This shaft supports the actuation arm 98 and The moving arm 98 is connected at its other end to the link 100 for moving the ram 62 that supports the ram 60. combined.

The movement of the push arm 42 is controlled by the push arm cam 102, and the movement is controlled by the first push arm cam 102. tracked by a cam follower 104 that supports arm 106 and second arm 108; The second arm carries a crank lever having a rotation axis 110. The other end of the second arm 108 of the cam follower has a spring 112 connected thereto. It serves to keep the moving object 104 on the pushing arm cam 102. crank lever The second arm 108 has a dowel pin 118 that attaches the rod 114 to the second arm 108. A support 114 is connected to it through a supporting link 116. U l) A link system and an adjustable abutment 114 adjust the position of the sweep. Salary 114 is connected by a link 120 to an arm 122 mounted on a pivot shaft 124. It is. The pivot shaft 124 still supports the pusher arm 42 (see FIG. 7). 2 pairs arms 92° 98; 42, 122 are provided on the respective rotation shafts 96; 124; separates the individual arms by a wall 126 extending parallel to the direction of movement of the tray 22. I'll let you.

This is exposed to the food packaged on the opposite side of wall 126 from 1j as shown in FIG. Therefore, it works to isolate most of the mechanical and moving parts. This is shown in Figure 6. The loading machine is isolated from the food loading side of the loading station 20, see FIG. It should be obvious.

As best seen in FIG. The sweeping movement of the plate 54 is controlled. The push arm and the push plate attached to it are A retractable push board is shown in ghost drawing above the spacing between the stacks 15; then engages the front stack to push it toward the drop station 30 indicated by a solid line in its lower position, indicated at the end of its return path. . In FIG. 8, the push plate and its support mechanism 54 move the stack 15 to the drop station. At the end of its forward movement, indicated by arrow 128, the delivery barrel is shown in fragment form; The push plate is then retracted upwardly in the direction of arrow 130, as shown by the solid outline. Ru. Ram cam 76 then moves shaft 62 downwardly in the direction shown by arrow 132. Push the stack 15 through the trapdoor 38.40 into the recess 26 of the tray 22 To move the control arm 98 as shown in FIG. use

Referring back to FIG. 6, the drive shaft 66 is rotated by the drive device of the machine. to drive the conveyor of the automatic loading machine. The drive shaft 134 of the loading machine has an idler sprocket. The chip passes over the sprocket 138 and over the sprocket 144 that rotates with the drive shaft 66. Chain 136 passing over sprocket 140 driven by chain 142 is driven by the drive shaft 66. Chain 136 has sprocket 1 40 and back onto another sprocket 146.

Sensor 152 is mounted on a bracket 156 that moves with rod 86. There is. If the ram 60 becomes stuck or its control arm 98 fails and does not move, If so, the relative motion between the sensor's probe and its target will cause a signal to stop the machine. It happens like it's coming out.

Referring now to Figure 9, the drop station trap door 38.40 is shown in the figure. As the product stack is moved through the drop station to the waiting container When installing the door, check the horizontal position (supporting a stack of products not shown) and the vertical position of the door. Pivot shafts 160 and 162 are included for rotational movement therebetween. 2 pots each The axis is an oblong horizontal section within the vertical portion 176 of the L-shaped bracket, indicated generally at 178. rollers 1-68, 170 fitted in slots 172, 174 at their distal ends; It supports crank arms 164, 166 (see also FIG. 10).

Bracket 178 includes a horizontal portion 180 that typically includes a trap door. 38, 40 to the crank arms 164, 166 to maintain them in their horizontal position. A spring 182 is attached to apply the force. Stacking products may cause them to fall. When moved through the door, the bracket 178 has a vertical axis that slides into the tube 186. Guided by 184 , it moves downwardly against the force of spring 182 .

In Figure 9, when the trapdoor rotates downwards to load the stack of product, the The rollers 168, 170 fit into their slots 172, 174 in the bracket 178. You will see that it moves laterally inside. The engagement of the rollers with these slots produces The forcing of their movement is such that the rollers are essentially at the same level (i.e., the same horizontal plane), thus allowing the crank arms 164, 166 to hang down. Make sure they are placed at equal angles to each other. This is then followed by trap door 3 8. Make the motion of 40 follow the force so that the two doors always tilt at the same angle. this The feature is that when the stack of products passes through the trap door, it prevents the misalignment of the product, that is, the clutter. Minimize.

Biasing spring 182 also provides the bias required by the particular wrapping operation being performed. It is equipped with an adjustment mechanism 10 that can easily change the force. This mechanism Determine the vertical position of the shaft 192 with respect to the socket 176, thereby placing the trapdoor in the To determine the initial biasing force that holds it in the flat position, use a screw threaded near the top. It includes a threaded shaft 192 having a top diameter) 194'f. Stock The punand can be screwed down onto the shaft to increase the spring force if required. Ru.

A lock nut 198 is provided to hold the stop nut firmly in place. Ru.

According to the present invention, relatively warm, highly wrinkled, relatively thinly cut orchid Chongmeat's stacked products are made of semi-rigid plastic without the need for manual handling. automatically loaded into a tight-fitting cup-shaped container. Repeated loading cycle The cruiser is fast and efficient, and the machine operation is fast and efficient, to reduce machine downtime. It has been easy. The original appearance of the stacks and their appearance is due to the machine as described maintained through physical movement and the use of structures. Stacking starts from a horizontal conveyor The droplets are smoothly transferred onto a downwardly tilted conveyor and then biased by a pair of springs. Place the stack on one section of the conveyor (this movement of the pushing plate which is curved along the arc (also preferably arcuate) transferred smoothly. These doors move through the drop station. To avoid stacking clutter Forced.

Changes and modifications to suit particular operational requirements and circumstances will be apparent to those skilled in the art; The invention is not to be considered limited to the examples chosen for illustration, and However, it is understood to include all changes and modifications that do not depart from the true spirit and scope of the invention. must be done.

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Claims (20)

[Claims] 1. It supports the semi-rigid packaging material and connects it to a series of stays on which the packaging action takes place. vacuum packaging apparatus of the type including a device for moving through the station; The semi-rigid packaging material is a stack of thinly cut, flexible food products. a container made of material and sized to fit the stack of said products; The vacuum packaging apparatus also includes a loading station placed within the tub-shaped container. Stacks of said products are placed continuously into said cup-shaped containers without the need for human handling. an automatic loading device for transferring, the automatic loading device comprising: Drop station with rotating trapdoor device spring-biased in a normally horizontal position , The lower end is directly adjacent to said drop station and the stack of sliced products a downwardly slanted conveyor, said downwardly slanted conveyor serving to convey the grains downwardly to said trapdoor device; rotatably mounted above the drop station and said downwardly tilted column. engaging a stack of product on a lower portion of the conveyor to cause said stack to drop said stack; Follow an arcuate path forward over the downwardly inclined conveyor to transfer onto the door device. A retractable push plate that swings with the push arm through the the pushing arm having at the lower end; mounted directly above said trap door device and which allows the stack of products to be placed directly above said trap door device; so that it can be pushed downwards through the shutter device into the waiting container. A ram device that can move to said pushing plate from its lower position where it can engage a stack of products; a push plate for engaging another stack and conveying it to said trap door device; To be moved back down during the next set of stacks so as to be swept forward again The push plate swings backwards above the advancing product stack to allow a device retractable to an upper position, capable of being vacuum packaging equipment. 2. The apparatus of claim 1, wherein the downwardly inclined conveyor is a device movable for conveying the stack of products downwardly toward the drop station; A vacuum packaging device comprising: 3. The apparatus of claim 2, wherein the moving device comprises a flexible belt device. A vacuum packaging device comprising: 4. The apparatus of claim 1, wherein the downwardly inclined conveyor is A marking plate moves the stack from the conveyor to the horizontal trap door device. In order to at least approximately match the curvature of the path of the pushing plate, the lower end thereof is A vacuum packaging device comprising a curved portion. 5. The apparatus of claim 4, wherein the stack of products is tilted downwardly. a second conveyor that feeds horizontally to the top of the conveyor. Vacuum packaging equipment. 6. 6. The apparatus of claim 5, wherein said The top part has a small section to smoothly transfer the stack of products between the two conveyors. A vacuum packaging device characterized by being at least slightly curved. 7. 2. The device of claim 1, wherein the trap door devices are a pair of side-by-side trapdoors rotatably mounted along the slope of the Ensure that the angles of the pair of trapdoors are approximately equal as loading proceeds. In order to prevent 1. A vacuum packaging device comprising: a device for causing rotational movement. 8. Apparatus according to claim 7, characterized in that said The device consists of a bracket plate and To ensure that the angles of the trapdoors are equal, each of the trapdoors is a device for coupling an ax to the plate. 9. The device according to claim 1, wherein the trap door device is maintained in a horizontal position. a biasing spring device coupled thereto for holding; and In order to vary the spring force produced by said spring device, it is possible to 1. A vacuum packaging apparatus comprising: a regulating device that can 10. A first container adapted to receive and move a stack of sliced food products. A loading station with a conveyor moves a stack of sliced food products. Packaging equipment for automatically loading into a series of packaging containers capable of hand, The packaging container is moved horizontally through the loading station and below the drop station. The loading station is placed over and aligned with the packaging containers when - the horizontal said drop station in the conveyor, the said drop station fed from the infeed conveyor A stack of thinly sliced food products is deposited on said drop station in a downwardly inclined path. A conveyor tilted downwards for conveying the stack of thinly sliced products with a pushing plate When in the lowered position behind the rack, it is responsible for stacking one slice of product. from the lower end of the downwardly inclined conveyor to the drop station. fitted with a retractable push plate adapted to be swept in push arm, a push arm drive device for swinging the push arm in a predetermined arcuate path; , The push plate is lowered directly behind the stack, or the sliced product is lowered directly behind the stack. After being moved into the lower station, the pushing plate is moved into the stacked product. a push plate control device for upward retraction, movably mounted within said drop station; and the thinly cut product is placed on the falling station by the pushing plate. said drop station above such product when swept into the a ram device, which is usually placed in an initial resting position above the slit product; for pushing the stack through the drop station and into the packaging container; moving the ram device and then returning the ram device to its initial rest position; A packaging/loading machine device comprising: a ram drive device. 11. The packaging/loading machine device according to claim 10, wherein the downwardly inclined column The conveyor deposits each stack of sliced food products adjacent to the drop station. packaging loading characterized in that it includes a movable transmission belt device for moving it to a position where machine equipment. 12. The packaging/loading machine device according to claim 10, wherein the ram drive device and Both of the pushing arm drive devices include cam devices that accurately drive the ram and the pushing arm. including a precisely controlled movement thereby ensuring loading of said stack. A packaging/loading machine device characterized by ensuring reliable movement. 13. In the packaging/loading machine device according to claim 12, the pushing arm drive device is a cam of the push arm, a cam coupled to and driven by the cam follower of the push arm. the cam follower having a crank lever, coupled to the crank lever; The shaft of the crank lever is moved by the lever, and the push arm is moved by the cam of the push arm. In order to rock the crank lever to and fro under control, A packaging/loading machine apparatus comprising: a device for coupling to a packaging/loading machine. 14. The packaging/loading machine device according to claim 12, wherein the ram drive device is , a ram cam and a ram cam follower, and a rotation driven by the ram cam follower. a moving crank arm coupled to and driven by said rotating crank arm; a rod, a swinging arm coupled to said rod, and said ram under the control of a cam on said ram. the swinging arm is coupled to the ram for movement up and down into the drop station; 1. A packaging and loading machine apparatus comprising: a device for carrying out. 15. In the packaging/loading machine device according to claim 12, the pushing arm drive device , the push plate control device, and the ram drive device are all controlled from a common drive shaft. A packaging/loading machine device characterized by being controlled. 16. The packaging/loading machine device according to claim 15, wherein each of the pushing arms , the push plate, and the ram driven by the common drive shaft to control the push plate and the ram. It is characterized by having a push arm cam, a push plate cam, and a ram cam. Packaging and loading equipment. 17. Continuously moving stacks of sliced food products through a loading station by loading it into a packaging container, The stack of sliced products to be packaged is loaded onto the loading station in a downwardly inclined path. move it to the horizontal drop station inside the room, The stacks are individually moved forward from the bottom end of the downwardly inclined path with an arcuately moving pusher plate. Sweep into the drop station; intermittently moving said series of packaging containers horizontally beneath said drop station; to align the recess of the container with the drop station during a downtime, and Pushing the stack from the drop station into the recess of the waiting container. , retract the pushing plate when the stack is being pushed, and push it forward. Return to the position where you want to start the sweep of the stack, and Lower said retracted push plate behind the rear stack on said inclined path. and begin another sweeping action to repeat the steps above, thereby continue loading the stacked sliced food products into the recesses of said container. , A series of stacks of thinly sliced food products characterized by comprising stages. method of loading into a packaging container. 18. 15. The packaging loader device according to claim 14, wherein the motion sensor and the Relative motion between the swinging arms is detected and generates a signal that causes the mechanism to malfunction. the sensor attached to the rod to indicate that it has become immobile due to a disability; , the signal being adapted to stop said device. Loading machine equipment. 19. supports a series of semi-rigid packaging containers and moves them through a series of stations. For vacuum packaging machines of the type that include devices that move one of said stations is thin A loading station in which a stack of cut, flexible food products is placed into said container. The vacuum packaging equipment also continuously stacks the products. an automatic loading device for transferring the liquid into a horizontal drop container; lower station, The lower end is directly adjacent to said drop station and the stack of sliced products a downwardly slanted conveyor that serves to transport the rotatably mounted above the drop station and tilted downwardly; engages a stack of products on the lower part of the conveyor to drop said stack; Follow an arcuate path forward over the downwardly inclined conveyor to transfer onto the door device. A retractable push plate that swings with the push arm through the the pushing arm having at the lower end; mounted directly above said trap door device and which allows the stack of products to be placed directly above said trap door device; so that it can be pushed downwards through the shutter device into the waiting container. A ram device that can move to said pushing plate from its lower position where it can engage a stack of products; a push plate for engaging another stack and conveying it to said trap door device; To be moved back down during the next set of stacks so as to be swept forward again The push plate swings backwards above the advancing product stack to allow a device retractable to an upward position, capable of being driving said conveyor at a speed greater than the average speed of advancement of said packaging containers; allowing the stack to be separated by a greater distance than the container; thereby allowing the push plate to be placed more easily between successive stacks. 1. A vacuum packaging device comprising: a device that enables 20. Continuously moving stacks of sliced food products through a loading station by loading it into a packaging container, The stack of sliced products to be packaged is placed horizontally in the loading station. placed on a downwardly tilted conveyor leading to a drop station; Place the stack on the conveyor with a center-to-center spacing greater than the center-to-center spacing of the containers. The stacks are individually tilted downwardly with an arcuately moving pusher plate. swept from the lower end of the conveyor into the drop station; intermittently moving the series of packaging containers horizontally below the drop station; to cause said conveyor to coincide with the arrival of said container at said drop station; moving at a speed greater than the average speed of said container; the stack from the drop station into the recess of the waiting container; push, when the stack is being pushed, retract the push plate, and and move it back to the position where it starts sweeping the stack, and Lower said retracted push plate behind the rear stack on said inclined path. and begin another sweeping action to repeat the steps above, thereby continue loading the stacked sliced food products into the recesses of said container. , A series of stacks of thinly sliced food products characterized by comprising stages. method of loading into a packaging container.