JP4863907B2 - Vacuum packaging method and apparatus for meat parts - Google Patents

Description

  According to the present invention, a portion of pork that has been disassembled (hereinafter simply referred to as a portion) is classified into five types according to the structure of the portion, and each of the separated portions has a size that can be adapted to them. The present invention relates to a method and an apparatus for filling a bag and vacuum packaging.

  After being disassembled, the pork undergoes bone removal and fat scraping by a large number of workers, and as shown in FIG. 2, the pork is shaped into five types: Kata 01, Catalose 02, Loose 03, Rose 04, and Momo 05. Although it is sent out in a congested state, in order to fill these five types of parts into sachets of different sizes and to form a vacuum package, it can be performed using the apparatus shown in Patent Document 1 below. .

  In other words, the above-mentioned patent document separates various parts to be transported by an image sensor installed in a conveyor line, and each of the separated parts is arranged in a vacuum packaging machine arranged in each of a plurality of conveyors arranged in parallel in the rear area. It shows that it is sent and packaged, and the volume of Kata and Catalose is smaller than that of the other three types of parts. By making these Kata and Catalose into one package, the other three types This shows the possibility that one pig including this part can be completed as four types of packaging (four types on the left and right sides of the spine, a total of eight packages).

Just five site sequence order of the conveyor track 11 to column moves in Figure 3, in relation workers involved in shaping throwing the混然each part to said belt conveyor, trying to complete as one package In this way , Kata 01 and Catalose 02 are not transported in close contact with each other. Compared to the other three types of packaging, Rose 03, Rose 04, and Peach 05, these Kata For 01 and catalose 02, there is a problem that the packaging efficiency is lowered by the extent of the interval and a surplus occurs in these parts cumulatively.

  Therefore, the present invention provides a packaging means that is superior in efficiency by preventing the excessive phenomenon of the aggregate of the cata 01 and catalose 02, as compared with the packaging of other three types of parts. Furthermore, as shown in Patent Document 1, the type in which the part is vacuum-packed between two upper and lower polyethylene films is more viable than the case of packaging with a wrapping bag having an opening only on one side. Therefore, the present invention discloses a technique for vacuum packaging a part using a wrapping bag in order to improve the decay rate of the part. In addition, in the type where the part is vacuum-packed between two polyethylene films, when the opening is heat-sealed, the heat-sealed part inevitably generates many flaws and impairs vacuum tightness. It is one of the purposes to perform.

JP 2003-252306 A JP 49-96898 A JP 49-72082 A JP 2004-106937 A

The method of the present invention measures and separates the mass of the pork parts that are transported on the transport track in order, and summarizes the parts composed of loin, roses, and peaches, and cata and catalose in this separation information. One part is separated by a separation transport mechanism following the transport track and transferred to each conveyor line, and the interval between the cata and catalose being transferred on the conveyor line is detected by a delay detection sensor. The delay of the rear part with respect to the part is accelerated and corrected by means of high-speed transport addition, and both parts are integrated, while opening the sachet in each of the conveyor lines, for vacuum packaging installed at each end of each conveyor line. A platen serving as a bottom plate of each pressure-resistant chamber is advanced toward the lower side of each opened bag, and the portion is pushed into each bag on each platen. After the performed intermittently seals the opening edge of each wrapper, pulling back the surface plate until the breakdown voltage Chiyanba position, characterized in that each vacuum packaging each part in the same breakdown voltage Chiyanba.

In the above method, the delay detection sensor arranged on the conveyor line that transports the cata and catalose detects the interval in the transfer direction of these parts that transport the conveyor line, Since it is integrated by carrying out acceleration tracking by means of carrying additional means, the relative delay with respect to other parts is reduced, and there is an effect that the sorted parts can be packaged efficiently. Moreover, in the present invention that employs a method of pushing the part into the wrapping bag, the surface plate serving as the bottom plate of the pressure-resistant chamber advances toward the lower side of the opening wrapping bag, and again under the cover material prior to vacuum packaging. Therefore, the amount of momentum for pushing the pork part around 70 cm into the wrapping bag can be reduced by the advance amount of the surface plate, and the mechanism can be simplified, and at the same time the opening of the wrapping bag on the surface plate Since the surface is overlapped with an intermittent seal to eliminate wrinkles in the enclosed bag, the bag mouth can be sealed airtight in the end, and the efficiency is also excellent.

In the claims, although it has been described that the interval between the catarose and the catalose transporting the conveyor line is detected by the delay detection sensor, the order of the parts to be transported is not necessarily so. Katarosu, since there may be the order of, wherein the order of the sites are those which include these all.

In FIG. 4, the transport track 11 formed by the belt conveyor conveys each part 10 in a tandem shape, and the image sensor 12 installed in the passing region of the part 10 has a large number of lamps arranged on the side surface and the top surface. While measuring the thickness from the cross section of each passing part 10 with the infrared rays 13 emitted from the respective parts, the length of the part is measured from the passing time of the part 10 and the detection signal is calculated in the controller 14. In addition, five types of parts are classified from the measurement data, and the classification information is sequentially recorded. The slaughter pigs shown in FIG. 2 have the shape of the cata 01 and rose 04 which are thinly shaped by removing the internal organs from the inside thereof, so that the distinction from the almost identical catalose 02 and loin 03 is clear from the calculation of the cross-sectional area. Can be selected. The image sensor 12 may be configured by a camera arranged on the upper part and the side face.

  Each part that is shaped by a large number of workers and accumulated in the upstream region of the transporting trajectory 11 in FIG. 3 is sent to the transporting trajectory 11 at a fixed timing. It is difficult to set the moving speed to about 1 m or more per second in order to suppress the inertia of the part to be transported. Loose 03 and rose 04, in particular, have a length of around 70 cm, and when transporting this maximum length part at about 1 m per second, the front part and the subsequent part are based on the length of 70 cm per part. Since it is difficult to form the delivery timing of each part unless a gap of 50 cm or more is formed between these parts, the conveyance pitch of each part is set at an interval of 1.5 seconds.

  Moreover, although all five types are displayed as the conveyance states of the parts in the drawing, the five kinds of parts are not always conveyed in this order, and the same type of parts may be continuous, or the same interval may be extremely large. A mechanical controller that prevents the same type of parts from becoming too hard or extremely open at the junction of the conveyor that carries the shaping part and the transport track 11 shown in the figure. It is desirable to provide it.

  In the structure of a known sorting and transporting mechanism 15 arranged at the rear of the transporting track 11 in FIG. 1, a slidable guide member is provided on each bar member installed in parallel between a pair of endless chains on both sides. It is a well-known conveyor which rotates each bar and carries a part on it. In short, when the parts are transferred from the transport track 11 to the separation and transport mechanism 15 sequentially at 1.5 second intervals, the guide member slides in the horizontal direction based on the classification information stored in the controller 14 so that the parts are moved. It is a structure in which each part is transferred to four conveyor lines 21 to 24 from the first to the fourth in a separated radial direction (arrow).

  In addition, in order to average the processing efficiency of each part in the four conveyor lines, each conveyor line 21 to the pressure packaging chamber 25 for vacuum packaging located at the end of each of the four conveyor lines. 24 lengths are approximately averaged. In this case, since the linear conveyor is restricted by the installation area depending on its length, each of the four conveyor lines 21... Is bent at a right angle by providing a curved conveyor 26 in the middle. The bag stacking unit 29 is sequentially arranged in the conveying direction via the standby conveyor 27 and the part carrying-in mechanism 28.

  A specific example of the bag loading unit 29 is shown in FIG. 5 as a side view and in FIG. 6 as a plan view. In the storage box 33 arranged on the carriage 32, the two feelings shown in FIG. A tape back formed by affixing the rims 31 of a large number of sachets 34 on the adhesive surface of the pressure-sensitive adhesive tape 30 in a scale-like manner is folded and accommodated in a zigzag manner. The belt 36, the pulling roll 37, and the reel 38, which receive the rotation of the motor 35 that is fixed to the wall surface of the carriage, inch the wrapping bag 31 in each inching operation. The bag 31 is pulled up and peeled off from the pressure-sensitive adhesive tape 30.

  A specific example of the four pressure-resistant chambers 25 arranged so as to face each bag loading unit 29 in FIG. 1 includes a surface plate 41 movably arranged on a rail 40 as shown in FIG. The lid member 43 moves up and down along a fixed vertical guide 42. The main shaft 45 that rotates with the power of the power machine 44 in FIG. 1 rotates four chain wheels or cranks 47 each having an electromagnetic clutch 46 to move the platen in each of the opposing pressure-resistant chambers 25. That is, the surface plate 41 in FIG. 8 is reciprocated on the rail 40 via the power transmission member 48.

  Further, in FIG. 1, the four site loading mechanisms 28 in front of each pressure-resistant chamber 25 are composed of a rotary conveyor belt 16 as shown in FIG. 9, and the conveyor belt 16 rotated by the motor 17 includes a bag loading unit 29. When the stop sensor 18 at the time of detection detects, the part 10 to be stopped and transported is made to stand by on the spot. Due to the integral displacement of the three pulleys 19, the upper surface of the conveyor belt 16 extends forward or backwards.

  A pair of vacuum cups 39 in the same figure is opposed to a section where the bag 34 is lifted from the bag stacking unit 29, and an opening mechanism 50 for expanding the mouth of the bag with four bars is located. As shown in detail in FIG. 13 and FIG. 14, the opening mechanism supports four bars 52 bent in two steps on a pair of blocks 51 on both sides, and each bar 52 is driven by the power of an electric motor 53 fixed to the block 51. Rotate to expand the opening edge of the sachet 34. The guide rod 55 fixed to the pair of frames 54 on both sides is a structure that slidably supports each of the blocks 51 and displaces the block 51 along the guide rod 55 by the screw action of the screw rod 56. When the vacuum cup 39 lifts the wrapping bag 34 as shown in FIG. 10, the four bars 52 that enter the wrapping bag expand the opening edge of the wrapping bag so that the portion 10 can be easily inserted.

  Then, as shown in FIG. 11, the bags 34 with the expanded bag mouths are retracted to cover the conveyor belt 16 and the portion 10 thereon, and then the conveyor belt 16 and each bar as shown in FIG. In synchronization with 52, the part 10 is inserted into the sachet 34. In this case, in order to halve the amount of protrusion of the conveyor belt 16 that supports the heavy portion 10, the surface plate 41 advances to a specified position toward the portion carry-in mechanism 28 as shown in FIGS. 10 to 12.

  The four standby conveyors 27 in the four conveyor lines in FIG. 1 wait for subsequent parts on the subsequent part carry-in mechanism 28 in order to limit the entry of more than a set number of parts onto these parts. Each of the basic standby conveyors 27 includes a second image sensor 60 for redetecting the length of the part to be conveyed. As described above, the first image sensor 12 arranged on the transport track 11 records the length of each part to be transported in the controller 14, but when an operator extracts the part to be transported by each conveyor line. As a countermeasure, the length of the passing part is re-measured by the second image sensor 60 and re-recorded by the controller 14, and the rotation angle of the conveyor belt 16 in FIG. It feeds to a position beyond the inner surface 49 of the table 48.

Wherein on both sides a pair of blocks 51 13 and 14, each with a bag mouth tension pawl 59 opened and closed by the power of the motor 58. When the portion 10 is pushed into the wrapping bag 34 as shown in FIG. 15 and the conveyor belt 16 is retracted and the expansion of the bag mouth by the bar 52 is loosened, the pair of bag mouth tension claws 59 tension the bag mouth to both sides. Then, a temporary seal bar (not shown) descends from above toward the sub seal base 57, and an intermittent seal 61 is applied to the bag mouth.

  Immediately thereafter, the surface plate 41 returns to the lower region of the lid member 43 as shown in FIG. As described above, the time until the surface plate 41 moves away from the bottom of the lid member 43 and returns to the bottom of the lid member 43 in FIG. 8 is set to 5 seconds. In short, it takes nearly 5 seconds to fill the bag in the region shown in FIGS. On the other hand, after removing the air in the airbag 64 below the lift plate 63 and lowering the part 10, the lid 43 is moved down along the guide 42, and then the vacuum in the airtight space generated by the air suction from the hose 65 is performed. Below, after the bag mouth is welded by the clamping pressure between the lowering seal bar 66 and the sealing base 48, the time until the lid member 43 is opened again from the surface plate 41 is at least 8 seconds. Therefore, the time for covering the surface plate 41 of the lid member 43 is set to 8 seconds with a timer.

  The closing times of the four pressure-resistant chambers 25 in FIG. 16 are each 8 seconds as described above. On the other hand, if the interval between the parts transported toward the respective pressure-resistant chambers is set to a pitch of 1.5 seconds, it is assumed that five kinds of parts are sequentially transported well, and the cata 01 that is carried into the fourth conveyor line 24 is assumed. The arrival of the part to one pressure-resistant chamber 25 until the catalose 02 comes into close contact with each other is at intervals of 7.5 seconds, and the number of arrivals toward the pressure-resistant chamber at each part is gradually accumulated. However, if the order of the five types of parts that are differently conveyed is originally arranged in order by the mechanical controller, the ordering pitch is 1.5 seconds, which is insufficient. The purpose is to prevent interval expansion. In addition, the first standby line (A) indicates standby by the part carry-in mechanism 28 in FIG. 1, and the second standby line (B) similarly performs standby in stages as shown by the standby conveyor 27 in front thereof. Compared to the delay in arrival of the parts in the first to third three conveyor belts 21 to 23, the condition of the part in the fourth conveyor belt 24 is that the two parts are integrated together. Since the arrival delay may be further increased, as shown in FIG. 17, a delay detection sensor 68 and a pair of upper acceleration conveyors 69 are provided on the fourth conveyor line 24 to form the high-speed transport addition means 70.

That is, when the delay detection sensor 68 detects the delay time of the rear part relative to the front part moving on the fourth conveyor line 24, the acceleration conveyor 69 approaching from both sides sandwiches the rear part 10 and The distance from the front part at a high speed is reduced based on the distance value between the two parts recorded by the controller. In this case, the cata 01 or catalose 02 is small and light, and the influence of inertia when the transport speed is increased is smaller than the influence of inertia of other large parts, and the amount of forward protrusion when stopping is small. Even if the interval between the front and rear portions reaches an interval where control is not possible, the relative interval is shortened by tracking the subsequent portion, so that the waiting time for opening the pressure-resistant chamber is reduced accordingly.

Oscillator signal from the signal transmitting unit 72 connected to the controller 14 in FIG. 1, opening and closing the respective electromagnetic clutches 46 of the four crank 47, which controls to reciprocate platen withstand Chiyanba 25. The command signal from the controller 14 to the signal transmission unit 72 is related to the action of pushing the part into the sachet by the part carry-in mechanism 28, whereby the timing of opening and closing each pressure-resistant chamber 25 is measured. In FIG. 8, by removing the air in the air bag 64, the packaging bag 34 filled with the part is lowered integrally with the surface plate 63, and at the same time, the lid member 43 is lowered to remove the air in the airtight space formed therein to the hose 65. To eliminate. After that, the sealer 66 descends toward the seal base 48 and welds the bag mouth, while the saddle-shaped stopper 73 descends by the operation of the lever 75 with the pin 74 as an axis. The stopper 73 is a mechanism for removing the vacuum package on the identification board when the lid member 43 is opened and the surface plate 41 moves.

  FIG. 18 shows the curved portion of the fourth conveyor line 24, but when the front and rear portions are open regardless of the adjustment of the portion interval using the high-speed carrying addition means 70, the front portion of the curved conveyor 26, The motor 76 for driving the five rollers 75 is stopped by a signal detected by the sensor 77 in the lower region of the roller 75 in FIG. 19 to detect the portion 10 and stopped, and is tracked by the high-speed transport adding means 70 in FIG. The part 10 is captured by a plurality of sensors 78 arranged in a row, and the motor 76 is activated by a signal indicating that the distance between the two parts has reached a set value, so that the two parts are fed together to the rear region.

  As shown in FIG. 20, a bypass conveyor 80 is arranged on the front side of the installation area of the high-speed transport addition means 70 in FIG. 17. In this bypass conveyor 80, the front belt 81, which is normally in a horizontal state like a virtual line, descends as shown by a solid line with a parting signal recorded by the controller, and is picked up from the fourth conveyor line 24. Bypass 10 to the upper section. On the other hand, the rear belt 82 descends like an imaginary line with the classification signal recorded by the controller, and guides the already picked up part to the fourth conveyor line 24 again. Kata 01 and catalose 02 exist as four pieces of pork, and these may continue, so that a part of them is stored on the bypass conveyor 80 to help eliminate congestion.

  In this case, if the type of the part that moves the lower fourth conveyor line 24 is set to only Kata 01, the bypass line 80 bypasses only Catalose 02. In other words, the two catalose 02 are moved close to the bypass conveyor by the two sensors 78 and 79 in the front and back, and the two cata 01 are continuously passed through the lower fourth conveyor line 24. Control that two catalose 02s that have been kept are sent out continuously, or send out one catalose 02 from the upper region in succession to passing the lower cata 01 and combine these two types of parts Control.

  FIG. 21 is a design example of the high-speed carrying addition means 70 in FIG. 17, and the fourth conveyor line 24 is formed by a plurality of string belts, and another string that is rotated by a high-speed motor 79 between the string belts. A belt 84 is disposed. When the distance between the front and rear parts 10 conveyed by the fourth conveyor line 24 is detected by the sensor 85, the plurality of actuators 86 rotate the lever 87 counterclockwise with the pin 88 as a fulcrum, and the pulley at the tip of the lever. 89, the string belt 84 is pushed up above the fourth conveyor line 24 to accelerate the subsequent portion 10.

  12, the conveyor belt 16 that pushes the portion 10 into the wrapping bag 34 is easily caught by the wrapping bag 34 due to its thickness in the vertical direction, and it is necessary to prepare a larger wrapping bag. The scoop-type dish 90 is arranged, the part 10 to be transferred from the conveyor belt 16 is received by the same dish 90, and the dish 90 is pushed into the packaging bag 34 as shown in FIG. A push rod 92 disposed in 91 is operated by a motor 93, and a portion 95 is pushed into the bag by a plate 94 at the tip thereof. As shown in FIG. 24, a gear 95 is rotated by the power of the motor 93. Is engaged with the rack teeth formed on the lower surface of the push bar 92 in the groove pattern 91 and rotates.

Overall plan view of the device Illustration of pork part Illustration of transporting parts Illustration of the image sensor in the conveyor line Side view of bag loading unit Previous plan Explanation of tape back Side view of pressure chamber Side view near the bag loading unit Explanatory drawing of pushing the part into the bag Explanatory drawing of pushing the part into the bag Explanatory drawing of pushing the part into the bag Front view of bag opening mechanism Plan view of the previous figure Explanatory drawing of tension action of bag mouth Explanatory drawing of part conveyance in conveyor line Explanatory drawing of high-speed transport additional means 1 part enlarged explanatory diagram in FIG. Side view of bypass conveyor Illustration of bypass conveyor Another embodiment of the high-speed transport addition means Another embodiment of the part pushing mechanism Plan view of the previous figure Partial illustration of the previous figure

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Parts 11 ... Transport track 12 ... Image sensor 14 ... Controller 15 ... Sorting transport mechanism 16 ... Conveyor belt 18 ... Stop sensor 21-24 ... First to fourth conveyor lines 25 ‥‥ withstand Chiyanba 27 ‥‥ standby conveyor 28 ‥‥ site loading mechanism 29 ‥‥ bag Noseki unit 34 ‥‥ wrapper 39 ‥‥ vacuum cups 41 ‥‥ platen 43 ‥‥ lid 48 ‥‥ seal base 50 ‥‥ Opening mechanism 59 ... Tightening claw 60 ... Second image sensor 61 ... Intermittent seal 68, 85 ... Delay detection sensor 69 ... Accelerating conveyor 70 ... High-speed transport additional means
84 ... string belt

Claims (6)

In addition to measuring and separating the mass of the pork parts that are transported along the transport track,
Of the separation information, the portion composed of loin, roses and peaches, and one portion that combines cata and catalose are separated by the separation and transport mechanism following the transport track and transferred to each conveyor line.
The interval between the cata and catalose being transferred on the conveyor line is detected by a delay detection sensor, the delay of the rear part with respect to the front part is accelerated and corrected by the high-speed transport additional means, and both parts are integrated.
While opening the wrapping bag in each of the conveyor lines, the surface plate serving as the bottom plate of each pressure-resistant chamber for vacuum packaging installed at each end of each conveyor line is advanced toward the lower side of each opened wrapping bag. And push the part into each sachet on each surface plate,
After performing intermittent sealing on the opening edge of each sachet on the surface plate, the surface plate is pulled back to the pressure chamber position and each part is vacuum packed in the pressure chamber.
A method for vacuum packaging meat parts . A bypass conveyor is installed in parallel with a conveyor line for transferring one kind of part that combines cata and catalose, and a part for transferring the conveyor line and a part for bypassing the bypass conveyor are 2. The method for vacuum packaging of meat parts according to claim 1, wherein the recombination of both classified parts is controlled by feeding the parts from the bypass conveyor to the conveyor line. Means for sequentially measuring, sorting, and recording the mass of the pork portion that transports the transport track;
Means for separating each part composed of loin, roses and peaches with the classification information, and one part combining cata and catalose and transferring them to each conveyor line;
A means for detecting the interval between the cata and the catalose with a delay detection sensor, and accelerating the delay of the rear part with respect to the front part during transfer by means of high-speed carrying addition means to integrate both parts;
While opening the packaging bags having different sizes in the conveyor line, a platen serving as a bottom plate of a pressure-resistant chamber for vacuum packaging installed at each conveyor line end facing portion is provided for each of the opened packaging bags. Advancing downward, push the part into each wrapping bag on each surface plate, intermittently seal the opening edge of each wrapping bag on the surface plate, and place the surface plate in the pressure chamber position A mechanism for vacuum-packing each of the parts in the pressure-resistant chamber,
A vacuum packaging device for meat parts . The high-speed carrying additional means for detecting the interval between the cata and catalose during the transfer of the conveyor line with a delay detection sensor and accelerating the correction of the delay of the rear part with respect to the front part during the transfer is transferring the conveyor line. The meat part vacuum packaging apparatus according to claim 3, wherein the part is sandwiched and conveyed by an acceleration conveyor approaching from both sides in accordance with a signal from the delay detection sensor. A high-speed carrying additional means for detecting the interval between the catarose and the catalose during the transfer of the conveyor line with a delay detection sensor and accelerating correction of the delay of the rear part with respect to the front part during transfer forms the conveyor line. 4. The meat packaging vacuum packaging apparatus according to claim 3, wherein the apparatus is lifted and conveyed by a string-like acceleration conveyor that pushes up in accordance with a signal from the delay detection sensor from between the string belts. Bypass the one site in the bypass conveyor of Kata and Katarosu, the bypassed portion, induced in other types of sites again the conveyor line in accordance with the movement of the said conveyor line is transferred, before and after the transfer The vacuum packaging apparatus for meat parts according to claim 3, wherein the combination of the parts is controlled.