CN218751631U - Vacuum packaging mechanism - Google Patents

Abstract

The utility model provides a vacuum packaging mechanism, which comprises a cover cap, a guide rod component, a bottom plate and a positioning guide mechanism; the cover is connected with the bottom plate in a sliding mode through the two guide rod assemblies, a first driving cylinder is mounted on the bottom plate, and the cover moves up and down relative to the bottom plate under the action of the first driving cylinder; the cover cap and the bottom plate are matched to form a sealed cavity for vacuumizing the packaging bag; the top of the cover cap is provided with an exhaust pipe communicated with the sealed cavity; the cover cap and the bottom plate are respectively provided with a strip-shaped heating block and a strip-shaped cushion block for carrying out heat sealing on the sealing end of the packaging bag, and the strip-shaped heating block is matched with the strip-shaped cushion block to clamp the sealing end of the packaging bag under the action of the second driving cylinder; the utility model discloses the sealed chamber of well shroud and bottom plate's cooperation formation can hold a plurality of wrapping bags, can realize simultaneously to a plurality of wrapping bag evacuation, and this has realized carrying out batch evacuation to the wrapping bag.

Description

Vacuum packaging mechanism

Technical Field

The utility model relates to a equipment for packing field especially relates to a vacuum wind encapsulation mechanism.

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;

vacuum packaging mechanism among the prior art generally once can only encapsulate a packing product, is not suitable for the encapsulation of batch product, and packaging efficiency is lower, the utility model discloses the intention is providing a mechanism that is applicable to batch vacuum packaging, is applied to in the vacuum packaging equipment to improve vacuum packaging equipment's batch packaging efficiency.

SUMMERY OF THE UTILITY MODEL

In view of the above shortcoming of the prior art, the utility model aims to provide a vacuum packaging mechanism for solve among the prior art vacuum packaging equipment once can only encapsulate a product, encapsulate inefficiency, be not suitable for the problem of encapsulating in batches.

In order to achieve the above and other related objects, the present invention provides a vacuum packaging mechanism, which is used in cooperation with a conveying mechanism, the vacuum packaging mechanism including a cover, a guide rod assembly, a bottom plate and a positioning guide mechanism;

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

the two sides of the bottom plate along the length direction are respectively provided with a strip-shaped cushion block, the two sides of the inner cavity of the cover cap are respectively provided with a strip-shaped heating block, the top of the 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;

two location guiding mechanism symmetry is installed along direction of transfer's both sides on the bottom plate, location guiding mechanism is used for centre gripping wrapping bag seal end, and with the good wrapping bag of transport mechanism cooperation conveying encapsulation.

In an embodiment of the present invention, the 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 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 bottom plate.

In an embodiment of the utility model, the first actuating cylinder that drives is installed between two uide bushings, the first telescopic link that drives actuating cylinder with the middle part of installation pole is connected.

In an embodiment of the present invention, the positioning and guiding mechanism includes a mounting plate, a first pulley assembly and a second pulley assembly, the mounting plate is located at 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 surface 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 strip-shaped cushion block is disposed between the mounting plate and the first pulley assembly or the second pulley assembly;

in an embodiment of the present invention, the belt pulley is connected to the mounting plate through a rotating shaft, and the length of the bar-shaped heating block is smaller than the distance between the two rotating shafts in the first belt pulley assembly.

In an embodiment of the present invention, the strip-shaped rubber strip is installed at the top of the strip-shaped cushion block.

In an embodiment of the utility model, the cross-section of rubber strip is the I shape, the mounting groove that extends along its length direction is seted up on bar cushion top, the notch symmetrical forming of mounting groove has the spacing hem, the rubber strip with the mounting groove cooperation installation.

In an embodiment of the present invention, the periphery of the lower end of the cover cap is provided with a channel steel section for installing a sealing strip, and the sealing strip for improving the sealing performance between the cover cap and the bottom plate is installed in the groove of the channel steel section in a matching manner.

As described above, the utility model discloses a vacuum packaging mechanism has following beneficial effect: (1) The sealed cavity formed by the matching of the cover cap and the bottom plate can contain a plurality of packaging bags, so that the plurality of packaging bags can be simultaneously vacuumized, and the packaging bags can be vacuumized in batches; (2) The positioning guide mechanism can fix the sealing end of the packaging bag to prevent the products (particularly granular products) in the packaging bag from spilling; meanwhile, the positioning guide mechanism is convenient for transferring the packaging bag between the front station and the rear station; (3) The positioning guide mechanism is matched with the first driving cylinder to realize automatic opening and closing of the cover.

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 is an exploded view of the components of the vacuum packaging apparatus according to an embodiment of the present invention;

fig. 3 is an exploded view of a transfer mechanism according to 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 in FIG. 4;

fig. 6 is an exploded view of a first positioning and guiding mechanism according to 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 diagram of a driving assembly in the first positioning and guiding mechanism according to the 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 table 1, a conveying mechanism 2, a supporting 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 column 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 and 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 component 502, a second bottom plate 503, a second guide rod component 505, a fourth driving air cylinder 506, a second air exhaust pipe 507, an extrusion plate 509, a fifth driving air 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, ratio, 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 that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. 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 sequentially convey 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 and 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 respectively rotatably mounted at two ends of the mounting plate 301, 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 package is sealed, the package is placed on the conveyor 203 in a running state, the sealed end of the package is guided into the guide guiding port 310, the sealed end of the package is clamped in the guide guiding gap 312 and moves forward along with the first transmission belt 304 and the second transmission belt 307, and in the process, the first transmission belt 304 and the second transmission belt 307 keep the advancing speed of the conveyor 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 pressing rod 318 presses the lower end face of the first transmission belt 304 of the first pulley assembly downwards; the second side plate 315 is provided with a second fixing rod 319, and the second fixing rod 319 upwardly supports the lower end surface of the second driving belt 307 of the second pulley assembly.

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 slots 321 and the guide posts is effective to guide the vertical movement of the plunger 318.

Furthermore, 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 is shown, so that the first transmission belt 304 and the second transmission belt 307 clamp the sealing end of the packaging bag and transmit the packaging bag synchronously and in the same direction with the transmission belt 203, and the packaging bag 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 allows the operation of the conveying mechanism 2 and the first positioning guide mechanism 3 to have a certain beat limit, 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 base 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 chamber 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.

Further, 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 mode.

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 rod of the second driving cylinder 404 is connected with the middle part 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 pad 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 ends of the packaging bag are adhered 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 on 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 square 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 arranged on the periphery of the lower end of the cover, and the sealing strip 413 used for improving the sealing property between the cover and the bottom plate is installed in a groove of the channel steel section 412 in a matched 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 positioned 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 sealed air cavity, the vacuum pump is started, air in the first sealed cavity is extracted through first air suction, the air in the packaging bags is gradually reduced along with the reduction of the pressure in the first sealed cavity, after the pressure in the first sealed cavity reaches a set target value, the pressure condition in the first sealed cavity is kept, at the moment, 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, and meanwhile, the strip-shaped heating block 408 starts 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 sealed cavity is reversely inflated, so that the air pressure in the first sealed 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 be covered by the claims of the present invention.

Claims (9)

1. A vacuum packaging mechanism is characterized in that the vacuum packaging mechanism is matched with a conveying mechanism for use, and comprises a cover cap, a guide rod assembly, a bottom plate and a positioning guide mechanism;

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

the two sides of the bottom plate along the length direction are respectively provided with a strip-shaped cushion block, the two sides of the inner cavity of the cover cap are respectively provided with a strip-shaped heating block, the top of the 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;

two location guiding mechanism symmetry is installed along direction of transfer's both sides on the bottom plate, location guiding mechanism is used for centre gripping wrapping bag seal end, and with the good wrapping bag of transport mechanism cooperation conveying encapsulation.

2. The vacuum packaging mechanism of claim 1, wherein: the 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 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 bottom plate.

3. The vacuum packaging mechanism of claim 2, wherein: the first driving cylinder is installed between the two guide sleeves, and a telescopic rod of the first driving cylinder is connected with the middle of the installation rod.

4. The vacuum packaging mechanism of claim 1, wherein: the positioning guide mechanism comprises a mounting plate, a first belt wheel assembly and a second belt wheel assembly, the mounting plate is positioned 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 arranged on the side surface, 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.

5. The vacuum packaging mechanism of claim 4, wherein: the strip-shaped cushion block is arranged between the mounting plate and the first belt wheel assembly or the second belt wheel assembly.

6. The vacuum packaging mechanism of claim 4, wherein: the belt pulley pass through the pivot with the mounting panel is connected, the length of bar heating piece is less than the distance between two pivots in the first belt pulley subassembly.

7. The vacuum packaging mechanism of claim 1, wherein: and a strip-shaped rubber strip is arranged at the top of the strip-shaped cushion block.

8. The vacuum packaging mechanism of claim 7, wherein: the cross-section of rubber strip is the I shape, the mounting groove that extends along its length direction is seted up on bar cushion top, the notch symmetry shaping of mounting groove has the spacing hem, the rubber strip with the mounting groove cooperation installation.

9. The vacuum packaging mechanism of claim 1, wherein: the periphery of the lower end of the cover cap is provided with a channel steel section bar used for installing a sealing strip, and the sealing strip used for improving the sealing property between the cover cap and the bottom plate is installed in the groove of the channel steel section bar in a matched mode.

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