CN218751629U - Vacuum packaging equipment - Google Patents

Abstract

The utility model provides a vacuum packaging device, which comprises a control console and a transmission mechanism; the conveying mechanism is characterized by comprising a supporting frame and a conveying belt assembly arranged on the supporting frame, wherein the supporting frame is connected to the upper end of the console; the conveying belt assembly is used for driving the packaging bags to sequentially convey forwards; a first positioning guide mechanism for clamping, positioning and conveying and guiding the sealing end of the packaging bag, a vacuum packaging mechanism for vacuumizing and heat-sealing the packaging bag and a negative pressure leveling mechanism for leveling the packaging bag after vacuum packaging are sequentially arranged on the supporting frame along the conveying direction of the conveying belt assembly; the utility model discloses a location guiding mechanism, vacuum packaging mechanism, negative pressure leveling mechanism and transport mechanism's cooperation has realized the automatic encapsulation and the automatic flattening of batch wrapping bag, has improved the vacuum packaging efficiency of batch wrapping bag.

Description

Vacuum packaging equipment

Technical Field

The utility model relates to a equipment for packing field especially relates to a vacuum packaging equipment.

Background

Vacuum packaging, also called pressure reduction packaging, is to completely pump out and seal the air in a packaging container, maintain the bag in a high pressure reduction state, and ensure that the air is rare and equivalent to a low oxygen effect, so that microorganisms have no survival condition, thereby achieving the purposes of fresh food and no occurrence of rottenness. The product volume can also be compressed by vacuum packaging to improve the transportation efficiency;

in the prior art, vacuum packaging equipment generally can only package one packaged product at a time, has low automation degree, needs manual operation or triggering for each action of a machine in the packaging process, has low packaging efficiency and is not suitable for packaging batch products; in addition, the surface of the vacuum-packaged (particularly bulk products) is uneven, which affects the aesthetic degree, and the existing vacuum packaging equipment lacks a leveling device; the utility model discloses it is anticipated that an equipment suitable for vacuum packaging in batches is proposed to improve vacuum packaging equipment's the surface smoothness of batch encapsulation efficiency and encapsulation back product packing.

SUMMERY OF THE UTILITY MODEL

In view of the above shortcoming of the prior art, the utility model aims to provide a vacuum packaging equipment for solve among the prior art well vacuum packaging equipment's batch encapsulation inefficiency, and the poor problem of roughness of the product package after the encapsulation.

In order to achieve the above and other related objects, the present invention provides a vacuum packaging apparatus, comprising a console and a conveying mechanism; the conveying mechanism comprises a supporting frame and a conveying belt assembly arranged on the supporting frame, and the supporting frame is connected to the upper end of the console; the conveying belt assembly is used for driving the packaging bags to be sequentially conveyed forwards; follow on the support frame be equipped with in proper order on the direction of delivery of conveyer belt subassembly and be used for carrying out the first positioning guiding mechanism of evacuation and heat-seal, be used for carrying out the negative pressure leveling mechanism that the wrapping bag carried out the flattening to the wrapping bag after the vacuum packaging to wrapping bag sealing end centre gripping location and conveying direction.

In an embodiment of the present invention, the first positioning and guiding mechanism includes a mounting plate, a first pulley assembly and a second pulley assembly, the mounting plate is mounted on one side of the conveying mechanism along the conveying direction, the first pulley assembly and the second pulley assembly have the same structure and opposite conveying directions, and are mounted on the side of the mounting plate facing the conveying mechanism side by side up and down; the first belt pulley assembly comprises a transmission belt and two belt pulleys, the two belt pulleys are respectively rotatably installed at two ends of the installation plate, and the transmission belt is installed on the outer side of the two belt pulleys; the belt pulleys positioned on the same side in the first belt pulley assembly and the second belt pulley assembly are arranged oppositely up and down, and a positioning guide port for leading in or leading out the sealing end of the packaging bag is formed between the first belt pulley assembly and the second belt pulley assembly; and a positioning guide gap for conveying and positioning the sealing end of the packaging bag is formed between the first belt wheel assembly and the transmission belt in the second belt wheel assembly.

In an embodiment of the present invention, the belt pulley is connected to the mounting plate through a rotating shaft; a first side plate and a second side plate are arranged on the outer sides of the transmission belts in the first belt wheel assembly and the second belt wheel assembly, and two ends of the first side plate and two ends of the second side plate are respectively installed on the corresponding rotating shafts; a first fixing rod is arranged on the side face of the first side plate, the bottom end of the first fixing rod is connected with a pressing rod through a plurality of elastic pieces, and the pressing rod presses the lower end face of a transmission belt of the first belt pulley component downwards; and a second fixing rod is arranged on the second side plate and upwards supports the lower end face of the transmission belt of the second belt wheel assembly.

In an embodiment of the present invention, the vacuum packaging mechanism includes a first cover, a first guide rod assembly, a first bottom plate, and a second positioning guide mechanism; the first cover is symmetrically provided with two first guide rod assemblies along two sides of the conveying direction of the conveying mechanism, the first guide rod assemblies are connected with the first bottom plate in a sliding mode, the first bottom plate is provided with a first driving air cylinder in driving connection with the first guide rod assemblies, and the first cover moves up and down relative to the first bottom plate under the action of the first driving air cylinder; the first cover cap and the first bottom plate are matched to form a first sealing cavity for vacuumizing the packaging bag; the top of the first cover cap is provided with a first exhaust pipe communicated with the first sealed cavity; the two sides of the first bottom plate along the length direction are respectively provided with a strip-shaped cushion block, the two sides of the inner cavity of the first cover cap are respectively provided with a strip-shaped heating block, the top of the first cover cap is provided with a plurality of second driving cylinders, and the top of the strip-shaped heating block is in driving connection with the second driving cylinders and matched with the strip-shaped cushion blocks under the action of the second driving cylinders to clamp the sealing end of the packaging bag; the second positioning guide mechanisms are the same as the first positioning guide mechanisms in structure, and the two second positioning guide mechanisms are symmetrically arranged on the two sides of the bottom plate along the conveying direction.

In an embodiment of the present invention, the strip-shaped cushion block is disposed between the mounting plate and the second belt wheel assembly in the second positioning and guiding mechanism.

In an embodiment of the present invention, the first guide rod assembly includes an installation rod, a guide rod and a guide sleeve slidably engaged with the guide rod; the mounting rods are detachably mounted on two sides of the first cover in the conveying direction of the conveying mechanism, at least two guide rods are vertically and fixedly connected to the mounting rods, and the guide sleeves are fixedly mounted on the first bottom plate.

In an embodiment of the present invention, the negative pressure leveling mechanism includes a second cover, an extrusion leveling assembly, and a second bottom plate; the second cover is arranged above the second bottom plate, two second guide rod assemblies are symmetrically arranged on the second cover along two sides of the conveying direction of the conveying mechanism, and the second guide rod assemblies and the first guide rod assemblies are identical in structure; the second guide rod assembly is connected with the second bottom plate in a sliding mode, a third driving cylinder in driving connection with the second guide rod assembly is mounted on the second bottom plate, and the second cover moves up and down relative to the second bottom plate under the action of the third driving cylinder; the second cover cap and the second bottom plate are matched to form a second sealed cavity for vacuumizing the packaging bag; a second exhaust pipe communicated with the second sealing cavity is arranged at the top of the second cover cap; the top interval arrangement of second shroud has a plurality ofly extrusion flattening subassembly, extrusion flattening subassembly includes stripper plate and fourth drive cylinder, fourth drive cylinder fixed mounting in the top of second shroud, the stripper plate with fourth drive cylinder drive is connected, the stripper plate extrudees the wrapping bag of placing the encapsulation on the second bottom plate under the effect of fourth drive cylinder.

In an embodiment of the present invention, a vibrating device for vibrating the bottom plate is fixedly mounted on the lower surface of the bottom plate.

In an embodiment of the present invention, the console is a box structure, a vacuum pump is installed in the box of the console, the vacuum pump passes through a pipeline and is connected to the first exhaust pipe and the second exhaust pipe.

In an embodiment of the utility model, the control panel is installed at the control cabinet mid-mounting, be equipped with a plurality of access doors on the box of control cabinet.

As above, the utility model discloses a vacuum packaging equipment has following beneficial effect:

(1) The automatic packaging and the automatic leveling of the batch packaging bags are realized through the matching of the positioning guide mechanism, the vacuum packaging mechanism, the negative pressure leveling mechanism and the conveying mechanism, and the vacuum packaging efficiency of the batch packaging bags is improved;

(2) Through the cooperation of first band pulley subassembly and second band pulley subassembly among the positioning guide mechanism, ingenious realized the centre gripping location and the transmission direction to wrapping bag seal end before sealing, be applicable to the prepositioning before encapsulating to the wrapping bag in batches, convenient operation, it is efficient.

(3) In the vacuum packaging mechanism, a sealing cavity formed by matching the cover cap and the bottom plate can contain a plurality of packaging bags, so that the plurality of packaging bags can be vacuumized at the same time, and the packaging bags can be vacuumized in batches; the cooperation through bar heating piece and bar cushion has realized carrying out the heat-seal to a plurality of wrapping bags simultaneously.

(4) In the negative pressure leveling mechanism, the cover cap and the bottom plate are matched to form a sealed cavity, and gas in the sealed cavity is extracted through the exhaust tube, so that the pressure in the sealed cavity is reduced to be consistent with the pressure in the packaging bag after vacuum packaging, the pressure inside and outside the packaging bag is consistent, products (particularly granular products) in the packaging bag are easily and uniformly distributed under the dual actions of the vibrating device and the extrusion leveling assembly, and the surface of the packaging bag is kept flat and attractive.

Drawings

Fig. 1 is a schematic view of the overall structure of a vacuum packaging apparatus according to an embodiment of the present invention;

fig. 2 shows an exploded view of components of a vacuum packaging apparatus according to an embodiment of the present invention;

fig. 3 shows an exploded view of the transfer mechanism in an embodiment of the present invention;

fig. 4 is a schematic view of the overall structure of the first positioning and guiding mechanism in the embodiment of the present invention;

FIG. 5 is an enlarged view of the portion A of FIG. 4;

fig. 6 shows an exploded view of the first positioning guide mechanism in an embodiment of the present invention;

FIG. 7 is an enlarged view of FIG. 6 at B;

fig. 8 is a half sectional view of the first positioning and guiding mechanism according to the embodiment of the present invention;

fig. 9 is a schematic structural view of a driving assembly in the first positioning and guiding mechanism according to an embodiment of the present invention;

fig. 10 is an exploded view of a vacuum packaging mechanism according to an embodiment of the present invention;

fig. 11 is a top view of a vacuum packaging mechanism according to an embodiment of the present invention;

FIG. 12 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 11;

FIG. 13 is an enlarged view at C of FIG. 12;

FIG. 14 is a cross-sectional view taken along line B-B of FIG. 11;

FIG. 15 is an enlarged view of FIG. 14 at D;

FIG. 16 is an exploded view of the negative pressure leveling mechanism in an embodiment of the present invention;

FIG. 17 is an exploded view of a second cover of the negative pressure leveling mechanism of the embodiment of the present invention;

fig. 18 is an enlarged view of fig. 16 at E.

Description of the element reference numerals

A control platform 1, a conveying mechanism 2, a support frame 201, a conveying belt 203, a driving roller 204, a first driving motor 205, a groove position 206,

a first positioning guide mechanism 3, a mounting plate 301, a first transmission belt 304, a first belt pulley 305, a second belt pulley 306, a second transmission belt 307, a third belt pulley 308, a fourth belt pulley 309, an introduction positioning guide port 310, an introduction positioning guide port 311, a positioning guide gap 312, a rotating shaft 313, a first side plate 314, a second side plate 315, a first fixing rod 316, an elastic member 317, a pressing rod 318, a second fixing rod 319, a guide post 320, a guide groove 321, a long hole 322, a second driving motor 323, a first transmission gear 324, a second transmission gear 325, a first brake assembly 326, a second brake assembly 327, a first driving cylinder 328, an extrusion member 329, a cambered end 330, a driving gear 331, a first mounting plate 332, a second mounting plate 333, a connecting plate 334,

a vacuum packaging mechanism 4, a first cover 401, a first bottom plate 402, a second positioning guide mechanism 403, a second driving air cylinder 404, a first air suction pipe 406, a strip-shaped cushion block 407, a strip-shaped heating block 408, a third driving air cylinder 409, a rubber strip 410, a limit folding edge 411, a channel steel section bar 412, a sealing strip 413, a first guide rod component 414, a mounting rod 415, a guide rod 416 and a guide sleeve 417,

the device comprises a negative pressure leveling mechanism 5, a second cover 501, an extrusion leveling assembly 502, a second bottom plate 503, a second guide rod assembly 505, a fourth driving cylinder 506, a second air suction pipe 507, an extrusion plate 509, a fifth driving cylinder 510, a long groove 511, a reinforcing beam 512, a reinforcing column profile 513, a vibrating motor 514, a control panel 515 and an access door 516.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 to 18. It should be understood that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions of the present invention, so that the present invention does not have the substantial technical significance, and the modification of any structure, the change of the proportion relation or the adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Referring to fig. 1-3, the present embodiment provides a vacuum packaging apparatus, which includes a console 1 and a conveying mechanism 2; the control console 1 is of a box type structure, the conveying mechanism 2 comprises a supporting frame 201 and a conveying belt assembly arranged on the supporting frame 201, and the supporting frame 201 is connected to the upper end of the control console 1; the conveying belt assembly is used for driving the packaging bags to be sequentially conveyed forwards; further, the conveyer belt subassembly includes conveyer belt 203, be used for the tensioning and drive conveyer belt 203 rotatory driving roller 204, with driving roller 204 drive connection's first driving motor 205, driving roller 204 rotates and sets up at support frame 201 both ends, first driving motor 205 fixed mounting is in the bottom of control cabinet 1, furthermore, the equidistant baffle of installing a plurality of horizontal settings of the transmission belt, a plurality of baffles are parallel to each other, form the trench 206 that is used for placing the wrapping bag between two baffles.

The supporting frame 201 is sequentially provided with a first positioning guide mechanism 3 for clamping, positioning and conveying the sealing end of the packaging bag in a guiding manner, a vacuum packaging mechanism 4 for vacuumizing and heat-sealing the packaging bag, and a negative pressure leveling mechanism 5 for leveling the packaging bag after vacuum packaging along the conveying direction of the conveying belt assembly.

Referring to fig. 4-9, two first positioning guide mechanisms 3 (see fig. 2) are symmetrically arranged on the supporting frame 201 along the conveying direction of the conveyor belt assembly, each first positioning guide mechanism 3 includes a mounting plate 301, a first pulley assembly and a second pulley assembly, the mounting plate 301 is mounted on one side of the conveyor mechanism 2 along the conveying direction, in this embodiment, the mounting plate 301 is mounted on the supporting frame 201 of the guide mechanism, the first pulley assembly and the second pulley assembly have the same structure and opposite conveying directions, and are mounted on the side surface of the mounting plate 301 facing the conveyor mechanism 2 in a vertical side-by-side manner (see fig. 1 and 2); in this embodiment, the first pulley assembly is located above the second pulley assembly.

Further, the first pulley assembly comprises a transmission belt and two pulleys, the two pulleys are rotatably mounted at two ends of the mounting plate 301 respectively, and the transmission belt is mounted on the outer side of the two pulleys; the belt pulleys positioned on the same side in the first belt pulley assembly and the second belt pulley assembly are arranged oppositely up and down, and a positioning guide port for leading in or leading out the sealing end of the packaging bag is formed between the first belt pulley assembly and the second belt pulley assembly; a positioning guide gap 312 for conveying and positioning the sealed end of the packaging bag is formed between the transmission belts in the first belt pulley assembly and the second belt pulley assembly.

Further, the mounting plate 301 may be an integral structure or a split structure, in this embodiment, the mounting plate 301 of the first positioning and guiding mechanism 3 is a split structure, and includes a first mounting plate 332 and a second mounting plate 333, the first mounting plate 332 is disposed above the second mounting plate 333, and the two are located on the same vertical plane and fixedly connected through a connecting plate 334.

The first pulley assembly comprises a first transmission belt 304, a first pulley 305 and a second pulley 306 for supporting the first transmission belt 304, and the first pulley 305 and the second pulley 306 are respectively rotatably mounted at two ends of the first mounting plate 332;

the second pulley assembly comprises a second transmission belt 307 and a third pulley 308 and a fourth pulley 309 for supporting the second transmission belt 307, wherein the third pulley 308 and the fourth pulley 309 are respectively rotatably mounted at two ends of a second mounting plate 333;

an introduction positioning guide port 310 for introducing the sealed end of the packaging bag is formed between the second pulley 306 and the fourth pulley 309, an introduction positioning guide port 311 for introducing the sealed end of the packaging bag is formed between the first pulley 305 and the third pulley 308, and a positioning guide gap 312 for conveying and positioning the sealed end of the packaging bag is formed between the first transmission belt 304 and the second transmission belt 307. In this embodiment, the first pulley 305 and the third pulley 308 are synchronous pulleys, and the second pulley 306 and the fourth pulley 309 are common pulleys, and it is worth mentioning that the type of the pulleys can be pulleys in the prior art according to actual requirements.

Before the sealing, the packaging bag is placed on the conveyor belt 203 in a running state, the sealing end of the packaging bag is guided into the guiding and positioning port 310, the sealing end of the packaging bag is clamped in the positioning and guiding gap 312 and moves forwards along with the first transmission belt 304 and the second transmission belt 307, and in the process, the advancing speed of the first transmission belt 304 and the advancing speed of the second transmission belt 307 are consistent with the advancing speed of the conveyor belt 203 in the conveying mechanism 2.

Further, the belt pulley is connected with the mounting plate 301 through a rotating shaft 313; further, the rotating shaft 313 is rotatably connected with the mounting plate 301 through a bearing; a first side plate 314 and a second side plate 315 (as shown in fig. 4) are arranged outside the transmission belt in the first pulley assembly and the second pulley assembly, and two ends of the first side plate 314 and the second side plate 315 are respectively installed on the corresponding rotating shafts 313.

A first fixing rod 316 (as shown in fig. 8) is mounted on a side surface of the first side plate 314, and a pressing rod 318 is connected to a bottom end of the first fixing rod 316 through a plurality of elastic members 317, in this embodiment, the elastic members 317 are compression springs; the compression rod 318 presses the lower end face of the first transmission belt 304 of the first belt pulley component downwards; a second fixing rod 319 is installed on the second side plate 315, and the second fixing rod 319 supports the lower end surface of the second driving belt 307 of the second pulley assembly upward.

Further, the side of the pressing rod 318 is fixedly connected with a guiding post 320 (as shown in fig. 7), the first side plate 314 is provided with a guiding groove 321, the guiding groove 321 is vertically arranged, and the end of the guiding post 320 extends into the guiding groove 321 and can slide up and down along the guiding groove 321. The cooperation of the guide slot 321 and the guide post is effective to guide the vertical movement of the pressing rod 318.

Further, the mounting plate 301 and the first side plate 314 and/or the second side plate 315 are provided with a long hole 322 for mounting the rotating shaft 313, and the arrangement direction of the long hole 322 is consistent with the tensioning direction of the transmission belt. The distance between the two belt pulleys can be conveniently adjusted through the long hole 322, and further the tension degree of the transmission belt can be adaptively adjusted.

Further, the belt pulleys of the first belt pulley assembly and the second belt pulley assembly which are positioned on the same side are in driving connection through the same driving assembly. The driving assembly includes a second driving motor 323, a first transmission gear 324 and a second transmission gear 325; wherein, the first transmission gear 324 is fixedly connected with the rotating shaft 313 of the first transmission assembly, and the second transmission gear 325 is fixedly connected with the rotating shaft 313 of the second transmission assembly; the first transmission gear 324 and the second transmission gear 325 are engaged with each other, and the driving gear 331 of the second driving motor 323 is engaged with the first transmission gear 324 or the second transmission gear 325.

Through the matching form between the gears, the rotation directions of the first transmission belt 304 and the second transmission belt 307 are opposite, and the whole effect of the transmission device enables the first transmission belt 304 and the second transmission belt 307 to clamp the sealing end of the packaging bag to transmit the packaging bag synchronously and in the same direction with the transmission belt 203, so that the preparation is prepared for vacuum packaging in the next process.

Further, a first brake assembly 326 and a second brake assembly 327 for stopping the rotation of the first transmission gear 324 and the second transmission gear 325 are respectively installed at one side of the first transmission gear 324 and one side of the second transmission gear 325. The first brake assembly 326 and the second brake assembly 327 have the same structure, the first brake assembly 326 includes a first driving cylinder 328 and an extrusion member 329, the extrusion member 329 extrudes the first transmission gear 324 to stop rotating under the action of the first driving cylinder 328, and further, the extrusion member 329 is formed with a cambered end 330 engaged with the first transmission gear 324.

Specifically, in the present embodiment, the packaging bag is packaged with three processes, the packaging bag needs to stay for a certain period of time in each process, which makes the operation of the conveying mechanism 2 and the first positioning guide mechanism 3 have a certain beat limitation, but the first pulley assembly and the second pulley assembly have a certain inertia during operation, and when the driving assembly stops, the first pulley assembly and the second pulley assembly can continue to operate forward due to the inertia, which is not easy to improve the control precision.

Referring to fig. 10-15, the vacuum packaging mechanism 4 includes a first cover 401, a first guide rod assembly 414, a first bottom plate 402 and a second positioning guide mechanism 403; the first bottom plate 402 is fixedly connected with the upper end face of the support frame 201 and is located below the conveyor belt 203, the conveyor belt 203 penetrates through the space between the first cover 401 and the first bottom plate 402, and the first bottom plate 402 has a supporting function on the conveyor belt 203.

Two first guide rod assemblies 414 are symmetrically arranged on the first cover 401 along two sides of the conveying direction of the conveying mechanism 2, the first guide rod assemblies 414 are connected with the first bottom plate 402 in a sliding manner, a second driving air cylinder 404 connected with the first guide rod assemblies 414 in a driving manner is arranged on the first bottom plate 402, and the first cover 401 moves up and down relative to the first bottom plate 402 under the action of the second driving air cylinder 404; the first cover 401 and the first bottom plate 402 cooperate to form a first sealed cavity for evacuating the package; the top of the first cover 401 is provided with a first exhaust pipe 406 communicated with the first sealed cavity; a vacuum pump is installed in the box body of the console 1, and the vacuum pump is connected with the first suction pipe 406 through a pipeline.

Strip-shaped cushion blocks 407 (as shown in fig. 12) are respectively mounted on two sides of the first bottom plate 402 along the length direction, strip-shaped heating blocks 408 are respectively mounted on two sides of the inner cavity of the first cover 401, and the strip-shaped heating blocks 408 are connected with wires; the top of the first cover 401 is provided with four third driving cylinders 409, the top of the strip-shaped heating block 408 is in driving connection with the third driving cylinders 409 and is matched with the strip-shaped cushion block 407 under the action of the third driving cylinders 409 to clamp the sealing end of the packaging bag; in the present embodiment, one bar-shaped heating block 408 is synchronously driven by two third driving cylinders 409.

The second positioning guide mechanisms 403 have the same structure as the first positioning guide mechanism 3, and the two second positioning guide mechanisms 403 are symmetrically arranged on the two sides of the bottom plate along the conveying direction; the leading-in positioning guide port 310 of the second positioning guide mechanism 403 is opposite to the leading-out positioning guide port 311 of the first positioning guide mechanism 3, so that the sealing end of the packaging bag transmitted from the first positioning guide mechanism 3 can be conveniently and seamlessly received; further, in this embodiment, the strip-shaped spacer block 407 is disposed between the mounting plate 301 and the second pulley assembly in the second positioning guide mechanism 403, so that the compactness of the mechanism can be improved, and the mounting space can be saved. Further, the pulley is connected with the mounting plate 301 through a rotating shaft 313, and the length of the strip-shaped heating block 408 is smaller than the distance between the two rotating shafts 313 in the first pulley component. This ensures that the engagement of the bar heater block 408 with the bar spacer block 407 is not interfered by the rotation shaft 313.

Further, a strip-shaped rubber strip 410 is mounted on the top of the strip-shaped cushion block 407. In this embodiment, the cross-section of rubber strip 410 is the I shape, and the mounting groove that extends along its length direction is seted up to bar cushion 407 top, and the notch symmetry shaping of mounting groove has spacing hem 411, and rubber strip 410 and mounting groove cooperation are installed.

Furthermore, the periphery of the lower end of the cover is provided with a channel steel section bar 412 for installing a sealing strip 413, and the sealing strip 413 for improving the sealing property between the cover and the bottom plate is installed in the groove of the channel steel section bar 412 in a matching manner.

In this embodiment, the first guide rod assembly 414 includes a mounting rod 415, a guide rod 416, and a guide sleeve 417 slidably fitted to the guide rod 416; wherein the mounting rods 415 are detachably mounted on both sides of the first cover 401 along the conveying direction of the conveying mechanism 2, two guide rods 416 are vertically and fixedly connected to the mounting rods 415, and the guide sleeves 417 are fixedly mounted on the first base plate 402. Further, a second driving cylinder 404 is installed between the two guide sleeves 417, and an expansion link of the second driving cylinder 404 is connected with a middle portion of the installation rod 415.

In the above structure, a first sealed cavity is formed by the cooperation of the first cover 401, the sealing strip 413 and the first bottom plate 402, when a plurality of packaging bags are conveyed between the first cover 401 and the first bottom plate 402 (i.e. a vacuum packaging station), the first cover 401 moves downwards under the action of the second driving cylinder 404 to seal the first sealed air cavity, the vacuum pump is started, air in the first sealed cavity is extracted by first air suction, the air in the packaging bags gradually decreases along with the bottom reduction of the pressure in the first sealed cavity, when the pressure in the first sealed cavity reaches a set target value, the pressure condition in the first sealed cavity is maintained, at this time, the strip-shaped heating block 408 moves downwards under the action of the third driving cylinder 409 and cooperates with the strip-shaped cushion block 407 to clamp the sealed end of the packaging bag, and at the same time, the strip-shaped heating block 408 starts to heat the sealed end of the packaging bag, and the heated sealed end of the packaging bag adheres together; in this embodiment, the package is a thermoplastic package.

The vacuum packaging mechanism 4 is compact in structure, can realize automatic vacuum heat sealing of batch packaging bags, greatly improves the automation degree of vacuum packaging equipment, and improves the batch vacuum packaging efficiency of the packaging bags.

Referring to fig. 16-17, the negative pressure leveling mechanism 5 includes a second cover 501, a pressing leveling assembly 502, and a second bottom plate 503; the second bottom plate 503 is fixedly connected with the upper end face of the supporting frame 201 and is located below the conveyor belt 203, the conveyor belt 203 penetrates through the second cover 501 and the second bottom plate 503, and the second bottom plate 503 has a supporting function on the conveyor belt 203.

Wherein, the second cover 501 is arranged above the second bottom plate 503, two second guide rod assemblies 505 are symmetrically arranged on the second cover 501 along two sides of the conveying direction of the conveying mechanism 2, and the second guide rod assemblies 505 have the same structure as the first guide rod assemblies 414; the second guide rod assembly 505 is slidably connected with the second bottom plate 503, a fourth driving cylinder 506 in driving connection with the second guide rod assembly 505 is mounted on the second bottom plate 503, and the second cover 501 moves up and down relative to the second bottom plate 503 under the action of the fourth driving cylinder 506; the second cover 501 and the second bottom plate 503 cooperate to form a second sealed cavity for evacuating the package; the top of the second cover 501 is provided with a second air exhaust pipe 507 communicated with the second sealed cavity, and the second air exhaust pipe 507 is connected with a vacuum pump.

The plurality of extrusion leveling assemblies 502 are arranged at intervals on the top of the second cover 501, each extrusion leveling assembly 502 comprises an extrusion plate 509 and a fifth driving cylinder 510, each fifth driving cylinder 510 is fixedly mounted on the top of the second cover 501, the extrusion plates 509 are in driving connection with the fourth driving cylinders 506, and the extrusion plates 509 extrude the packaged packaging bags placed on the second bottom plate 503 under the action of the fourth driving cylinders 506.

Further, a vibration device for vibrating the bottom plate is fixedly mounted on the lower surface of the bottom plate, in this embodiment, the vibration device employs a vibration motor 514, which is used for driving the second bottom plate 503 to vibrate, so that the contents (such as particles) in the packaging bag become flat under the action of the vibration.

In this embodiment, the second driving cylinder 404 is a duplex cylinder extrusion plate 509, and a long groove 511 for positioning and connecting with the duplex cylinder is formed in the middle of the duplex cylinder extrusion plate 509, and a mounting hole for connecting a telescopic rod of the duplex cylinder is formed in the long groove 511.

Furthermore, a criss-cross reinforcing beam 512 is welded at the top of the cover, in this embodiment, three longitudinal reinforcing beams 512 and three transverse reinforcing beams 512 are provided, a fifth driving cylinder 510 is installed in the center of a grid formed by the criss-cross reinforcing beams 512 and is fixedly connected with the top of the cover, a channel steel section 412 used for installing a sealing strip 413 is provided at the periphery of the lower end of the cover, the sealing strip 413 used for improving the sealing property between the cover and the bottom plate of the cover is installed in a groove of the channel steel section 412 in a matching manner

Furthermore, a plurality of reinforcing column section bars 513 are arranged on the inner side of the peripheral side wall of the housing at intervals, the upper ends of the reinforcing column section bars 513 are connected with the top of the housing, and the lower ends of the reinforcing column section bars are connected with the channel steel section bars 412.

Further, the middle of the console 1 is provided with a control panel 515, and a plurality of access doors 516 are arranged on the box body of the console 1. An inflator pump for reverse inflation is further disposed in the ascending console 1, and the inflator pump is used for rapidly recovering air pressures of the first seal cavity and the second seal cavity so as to facilitate opening of the first cover 401 and the second cover 501.

The working principle is as follows: the vacuum packaging equipment of this embodiment possesses three station, is the centre gripping direction station, the vacuum packaging station and the negative pressure flattening station of batch wrapping bag in proper order. After initial start-up of the apparatus, the first cover 401 and the second cover 501 are in an open state.

(1) Clamping and guiding of the packaging bag: the staff places a plurality of wrapping bags in different trench 206 respectively, and in this embodiment, first guiding mechanism is all installed to transport mechanism 2 both sides, can realize the wrapping bag simultaneous encapsulation of two columns. The sealing end of the packaging bag is led in from the leading-in positioning guide port 310 of the first guide positioning mechanism, after the first guide mechanism and the conveying mechanism 2 synchronously move to drive the packaging bag to enter the next station, the conveying mechanism 2 stops, and meanwhile, the first brake component 326 and the second brake component 327 act on the first transmission gear 324 and the second transmission gear 325 respectively; at this time, the worker can introduce the packaging bags of the next batch.

(2) And (3) vacuum packaging: in the process that the packaging bags enter the vacuum packaging station from the clamping guide station, the sealing ends of the packaging bags are led out from the leading-out positioning guide port 311 of the first positioning guide mechanism 3, are led in from the leading-in positioning guide port of the second positioning guide mechanism 403, the conveyor belt 203 stops at a preset position, all the packaging bags are located below the first cover cap 401 at the moment, the first cover cap 401 moves downwards under the action of the second driving cylinder 404 to seal the first sealing air cavity, the vacuum pump is started, air in the first sealing air cavity is extracted through first air suction, the air in the packaging bags gradually reduces along with the reduction of the pressure in the first sealing air cavity, when the pressure in the first sealing air cavity reaches a set target value, the pressure condition in the first sealing air cavity is kept, the strip-shaped heating block 408 moves downwards under the action of the third driving cylinder 409 and is matched with the strip-shaped cushion block 407 to clamp the sealing ends of the packaging bags, meanwhile, the strip-shaped heating block 408 begins to heat the sealing ends of the packaging bags, and the heated sealing ends of the packaging bags are adhered together; after vacuum packaging, the first sealing cavity is reversely inflated, so that the air pressure in the first sealing cavity is recovered, the first cover cap 401 is lifted to be opened, the conveying mechanism 2, the first positioning guide mechanism 3 and the second positioning guide mechanism 403 are started again, and the packaging bag at the station is conveyed to the next station and then is suspended again.

(3) And (3) negative pressure leveling: the second cover 501 moves downwards under the action of the second driving cylinder 404 to close the second sealed air cavity, the vacuum pump is started again, air in the second sealed cavity is extracted through second air suction, along with the fact that the pressure in the second sealed cavity is reduced to a set value (the pressure is consistent with the pressure in the packaging bag after vacuum packaging), the vibration motor 514 is started, meanwhile the squeezing plate 509 squeezes the packaging bag under the action of the fifth driving cylinder 510, in the process, because the pressure in the second sealed cavity is lower than the external pressure, the air pressure on the packaging bag is reduced, products (such as particles) in the packaging bag are uniformly distributed in the packaging bag under the double actions of the vibration motor 514 and the squeezing leveling assembly 502, the packaging bag is kept flat, then the pressure in the second sealed cavity is recovered to be normal through reverse air inflation in the second sealed cavity, the second cover 501 rises, the packaging bag is leveled, and the packaging bag is taken out by a worker.

To sum up, the utility model discloses a mutually supporting of location guiding mechanism, vacuum packaging mechanism and negative pressure levelling mechanism has realized the degree of automation of batch wrapping bag vacuum packaging, has improved the batch packaging efficiency of wrapping bag just empty encapsulation greatly. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the claims of the present invention.

Claims (10)

1. A vacuum packaging device comprises a control console and a conveying mechanism; the conveying mechanism is characterized by comprising a supporting frame and a conveying belt assembly arranged on the supporting frame, wherein the supporting frame is connected to the upper end of the console; the conveying belt assembly is used for driving the packaging bags to be sequentially conveyed forwards;

follow on the support frame be equipped with in proper order on the direction of delivery of conveyer belt subassembly and be used for carrying out the first positioning guiding mechanism of evacuation and heat-seal, be used for carrying out the negative pressure leveling mechanism that the wrapping bag carried out the flattening to the wrapping bag after the vacuum packaging to wrapping bag sealing end centre gripping location and conveying direction.

2. The vacuum packaging apparatus according to claim 1, wherein: the first positioning guide mechanism comprises a mounting plate, a first belt wheel assembly and a second belt wheel assembly, the mounting plate is mounted on one side of the conveying mechanism along the conveying direction, the first belt wheel assembly and the second belt wheel assembly are identical in structure and opposite in conveying direction, and the first belt wheel assembly and the second belt wheel assembly are mounted on the side face, facing the conveying mechanism, of the mounting plate in a vertical side-by-side mode;

the first belt pulley assembly comprises a transmission belt and two belt pulleys, the two belt pulleys are respectively rotatably arranged at two ends of the mounting plate, and the transmission belt is arranged on the outer side of the belt pulleys;

the belt pulleys positioned on the same side in the first belt pulley assembly and the second belt pulley assembly are arranged oppositely up and down, and a positioning guide port for leading in or leading out the sealing end of the packaging bag is formed between the first belt pulley assembly and the second belt pulley assembly;

and a positioning guide gap for conveying and positioning the sealing end of the packaging bag is formed between the first belt wheel assembly and the transmission belt in the second belt wheel assembly.

3. The vacuum packaging apparatus according to claim 2, wherein: the belt pulley is connected with the mounting plate through a rotating shaft; a first side plate and a second side plate are arranged on the outer sides of the transmission belts in the first belt wheel assembly and the second belt wheel assembly, and two ends of the first side plate and two ends of the second side plate are respectively installed on the corresponding rotating shafts;

a first fixing rod is arranged on the side face of the first side plate, the bottom end of the first fixing rod is connected with a pressing rod through a plurality of elastic pieces, and the pressing rod presses the lower end face of a transmission belt of the first belt pulley component downwards;

and a second fixing rod is arranged on the second side plate and upwards supports the lower end face of the transmission belt of the second belt wheel assembly.

4. The vacuum packaging apparatus according to claim 3, wherein: the vacuum packaging mechanism comprises a first cover, a first guide rod assembly, a first bottom plate and a second positioning guide mechanism;

the first cover is symmetrically provided with two first guide rod assemblies along two sides of the conveying direction of the conveying mechanism, the first guide rod assemblies are connected with the first bottom plate in a sliding mode, the first bottom plate is provided with a first driving cylinder in driving connection with the first guide rod assemblies, and the first cover moves up and down relative to the first bottom plate under the action of the first driving cylinder; the first cover cap and the first bottom plate are matched to form a first sealed cavity for vacuumizing the packaging bag; the top of the first cover cap is provided with a first exhaust pipe communicated with the first sealed cavity;

the two sides of the first bottom plate along the length direction are respectively provided with a strip-shaped cushion block, the two sides of the inner cavity of the first cover cap are respectively provided with a strip-shaped heating block, the top of the first cover cap is provided with a plurality of second driving cylinders, and the top of the strip-shaped heating block is in driving connection with the second driving cylinders and matched with the strip-shaped cushion blocks under the action of the second driving cylinders to clamp the sealing end of the packaging bag;

the second positioning guide mechanisms are the same as the first positioning guide mechanisms in structure, and the two second positioning guide mechanisms are symmetrically arranged on the two sides of the bottom plate along the conveying direction.

5. The vacuum packaging apparatus according to claim 4, wherein: the strip-shaped cushion block is arranged between the mounting plate and the second belt wheel assembly in the second positioning guide mechanism.

6. The vacuum packaging apparatus of claim 4, wherein: the first guide rod assembly comprises an installation rod, a guide rod and a guide sleeve in sliding fit with the guide rod; the mounting rods are detachably mounted on two sides of the first cover cap along the conveying direction of the conveying mechanism, at least two guide rods are vertically and fixedly connected to the mounting rods, and the guide sleeves are fixedly mounted on the first bottom plate.

7. The vacuum packaging apparatus according to claim 6, wherein: the negative pressure leveling mechanism comprises a second cover cap, an extrusion leveling assembly and a second bottom plate;

the second cover is arranged above the second bottom plate, two second guide rod assemblies are symmetrically arranged on the second cover along two sides of the conveying direction of the conveying mechanism, and the second guide rod assemblies and the first guide rod assemblies are identical in structure; the second guide rod assembly is connected with the second bottom plate in a sliding mode, a third driving cylinder in driving connection with the second guide rod assembly is mounted on the second bottom plate, and the second cover moves up and down relative to the second bottom plate under the action of the third driving cylinder; the second cover cap and the second bottom plate are matched to form a second sealed cavity for vacuumizing the packaging bag; a second exhaust pipe communicated with the second sealing cavity is arranged at the top of the second cover cap;

the top interval arrangement of second shroud has a plurality ofly extrusion flattening subassembly, extrusion flattening subassembly includes stripper plate and fourth drive cylinder, fourth drive cylinder fixed mounting in the top of second shroud, the stripper plate with fourth drive cylinder drive is connected, the good wrapping bag of encapsulation of placing on the second bottom plate is extruded to the stripper plate under the effect of fourth drive cylinder.

8. The vacuum packaging apparatus according to claim 7, wherein: and a vibration device for vibrating the bottom plate is fixedly arranged on the lower surface of the bottom plate.

9. The vacuum packaging apparatus of claim 7, wherein: the console is of a box body type structure, a vacuum pump is installed in a box body of the console, and the vacuum pump is connected with the first exhaust pipe and the second exhaust pipe through a pipeline.

10. The vacuum packaging apparatus according to claim 1, wherein: the control cabinet is characterized in that a control panel is installed in the middle of the control cabinet, and a plurality of access doors are arranged on a box body of the control cabinet.

Images