CN218751630U - Packaging bag sealing end positioning and guiding mechanism - Google Patents

Abstract

The utility model provides a packaging bag sealing end positioning and guiding mechanism, which comprises a mounting plate, a first belt wheel component and a second belt wheel component, wherein the mounting plate is positioned at one side of a conveying mechanism along the conveying direction; 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 for conveying and positioning and guiding the sealing end of the packaging bag is formed between the transmission belts in the first belt pulley assembly and the second belt pulley assembly; the utility model discloses a cooperation of first band pulley subassembly and second band pulley subassembly, ingenious realized before sealing to the clamping position and the transmission direction of wrapping bag sealing end, be applicable to the prepositioning before encapsulating the wrapping bag in batches.

Description

Packaging bag sealing end positioning and guiding mechanism

Technical Field

The utility model relates to the field of packaging equipment, especially, relate to a wrapping bag sealing end location guiding 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;

the patent document of application number 201721748901.4 discloses an abalone is sealing a bag device in batches, which comprises a frame, be provided with in the frame by the rotatory conveyer belt of actuating mechanism drive, the interval is provided with the bar cushion that is used for the wrapping bag sealing end to place on it on the conveyer belt, be provided with the activity of cliping the wrapping bag sealing end on the bar cushion and press … … the activity presss from both sides including setting up in the fixed plate 31 of bar cushion both sides end, and the both sides rod end portion of a U type depression bar 32 that falls is articulated mutually with the fixed plate respectively to can push down the U type depression bar that falls through the manual work and press the sealing end at the wrapping bag to through the U type depression bar of artificial frame upwards swing after the work of sealing bag is accomplished. The conveying belt is further provided with positioning strips 33 which are positioned at intervals and used for limiting the other end of the packaging bag and are used for limiting the other end of the packaging bag, and the positioning strips are parallel to the strip-shaped cushion blocks so as to ensure that the part of the packaging bag sealed in the bag sealing process cannot incline. The above structure has the following drawbacks: one movable clamp can only clamp the sealing end of one packaging bag, and one movable clamp needs to be opened for clamping during batch packaging, so that the operation is complicated, and the batch packaging efficiency is not improved; this application is anticipated is providing a wrapping bag sealing end location guiding mechanism, uses in a batch vacuum packaging equipment for before sealing to the centre gripping location and the transmission direction of wrapping bag sealing end.

SUMMERY OF THE UTILITY MODEL

In view of the above prior art's shortcoming, the utility model aims to provide a wrapping bag sealing end location guiding mechanism for it is loaded down with trivial details to solve the positioning mechanism operation that is arranged in pressing from both sides tight wrapping bag sealing end among the prior art, is unfavorable for improving the problem of encapsulation efficiency in batches.

In order to achieve the above and other related objects, the present invention provides a positioning and guiding mechanism for a sealing end of a packaging bag, wherein the positioning and guiding mechanism is used in cooperation with a conveying mechanism, and further, the conveying mechanism is a conveying belt assembly; 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 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.

Before sealing, the packaging bag is placed on a conveyor belt in a running state, the sealing end of the packaging bag is led in from a positioning guide port at one end of a positioning guide mechanism, the sealing end of the packaging bag is clamped in a positioning guide gap and moves forwards along with the transmission belts in the first belt pulley assembly and the second belt pulley assembly, and in the process, the transmission belts in the first belt pulley assembly and the second belt pulley assembly keep consistent with the advancing speed of the transmission belts in the conveyor belt assembly;

in the above-mentioned design, through the cooperation of first band pulley subassembly and second band pulley subassembly, 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.

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 mounted 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 the design, the transmission belt of the first belt wheel assembly and the transmission belt of the second belt wheel assembly are tightly attached under the action of the pressing rod and the second fixing rod respectively, so that the packaging opening of the packaging bag is further clamped.

In an embodiment of the present invention, the guiding column is fixedly connected to the side of the pressing rod, the guiding groove is formed on the first side plate, and the end of the guiding column extends into the guiding groove and can slide up and down along the guiding groove.

In the design, the guide post is matched with the guide groove, so that the pressing rod is kept in a parallel state with the second fixing rod in the vertical movement process.

In an embodiment of the utility model, the mounting panel with first curb plate and/or all be equipped with on the second curb plate and be used for the installation the slot hole of pivot, the direction that sets up of slot hole with driving belt's tensioning direction is unanimous.

In the design, the distance between the two belt pulleys in the first belt pulley assembly and the second belt pulley assembly can be conveniently adjusted through the long hole, so that the transmission belt is kept in a tensioning state.

In an embodiment of the present invention, the first belt pulley assembly and the second belt pulley assembly are located at the same side of the belt pulley and are connected to each other through the same driving assembly.

In an embodiment of the present invention, the driving assembly includes a driving motor, a first transmission gear and a second transmission gear; the first transmission gear is fixedly connected with a rotating shaft of the first belt wheel assembly, and the second transmission gear is fixedly connected with a rotating shaft of the second belt wheel assembly; the first transmission gear is meshed with the second transmission gear, and the driving motor is meshed with the first transmission gear or the second transmission gear.

In the design, the first transmission gear and the second transmission gear are meshed with each other and have opposite rotation directions, so that the advancing directions of two transmission leather bags in the first belt wheel assembly and the second belt wheel assembly, which are contacted with the sealing end of the packaging bag, are consistent, and the sealing end of the packaging bag and the transmission belt move synchronously.

In an embodiment of the present invention, a brake assembly for stopping rotation of the transmission gear is installed on one side of the first transmission gear and one side of the second transmission gear respectively.

In an embodiment of the present invention, the brake assembly includes a driving cylinder and an extrusion member, the extrusion member extrudes under the action of the driving cylinder, and the transmission gear stops rotating.

In the above-mentioned design, after driving motor shut down, because inertia, first band pulley subassembly and second band pulley subassembly can't stop at once, can make first band pulley subassembly and second band pulley subassembly stall at once through installation drive brake subassembly to improve this positioning guide mechanism's control accuracy.

In an embodiment of the present invention, the extrusion member is formed with an arc end matched with the transmission gear.

In the design, the arc surface end of the extrusion piece is matched with the outline of the transmission gear, so that the contact area of the extrusion block and the transmission gear is increased, the friction force between the extrusion block and the transmission gear is further increased, and the braking time of the first belt wheel assembly and the second belt wheel assembly is shortened.

As above, the utility model discloses a wrapping bag sealing end location guiding mechanism has following beneficial effect:

(1) Through the cooperation of first band pulley subassembly and second band pulley subassembly, ingenious realized before sealing to wrapping bag seal end clamping position and transmission direction, be applicable to the prepositioning before encapsulating to wrapping bags in batches, convenient operation, it is efficient.

(2) The transmission belt of the first belt wheel assembly and the transmission belt of the second belt wheel assembly are tightly attached under the action of the pressing rod and the second fixing rod respectively, and the packaging opening of the packaging bag is further clamped.

(3) The first transmission gear and the second transmission gear are meshed with each other and have opposite rotation directions, so that the advancing directions of two transmission leather bags in contact with the sealing end of the packaging bag in the first belt wheel assembly and the second belt wheel assembly are consistent, and the sealing end of the packaging bag and the conveying belt move synchronously.

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 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 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 on the conveyer 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.

Be equipped with the first positioning guide mechanism 3 (be the wrapping bag sealing end positioning guide mechanism in this application) that is used for carrying out evacuation and heat-seal to the wrapping bag, be used for carrying out the negative pressure leveling mechanism 5 that flattens to the wrapping bag after the vacuum packaging to wrapping bag sealing end clamping position and conveying direction in proper order on the conveying direction of following the conveyer belt subassembly on the support frame 201.

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 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 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 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.

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 belt wheel component, and the second transmission gear 325 is fixedly connected with the rotating shaft 313 of the second belt wheel component; 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 component 326 and the second brake component 327 have the same structure, the first brake component 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 an arc 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 cap 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 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 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 the packaging bags in batches, 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 which is 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 control console 1, and the inflator pump is used to quickly recover the air pressures of the first sealing cavity and the second sealing cavity, so as to facilitate the 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 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 import 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 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 seal the second sealed air cavity, the vacuum pump is started again, air in the second sealed cavity is extracted through second air suction, the vibration motor 514 is started 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 vacuum-packaged packaging bag), 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 and leveling assembly 502, the packaging bag is kept flat, then the second sealed cavity is inflated reversely, the pressure in the second sealed cavity is recovered to be normal, the second cover 501 is opened, the packaging bag is leveled, and a worker takes out the packaging bag.

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. Any person skilled in the art can modify or change the above embodiments 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. The packaging bag sealing end positioning and guiding mechanism is characterized in that the positioning and guiding mechanism is matched with a conveying mechanism for use, the positioning and guiding mechanism comprises a mounting plate, a first belt pulley assembly and a second belt pulley assembly, the mounting plate is positioned on one side of the conveying mechanism along the conveying direction, the first belt pulley assembly and the second belt pulley assembly are identical in structure and opposite in conveying direction, and the first belt pulley assembly and the second belt pulley assembly are arranged on the side face, facing the conveying mechanism, of the mounting plate 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 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.

2. The package sealing end positioning and guiding mechanism of claim 1, 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 mounted 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.

3. The package bag sealing end positioning and guiding mechanism according to claim 2, wherein: the side face of the pressing rod is fixedly connected with a guide post, a guide groove is formed in the first side plate, and the end portion of the guide post extends into the guide groove and can slide up and down along the guide groove.

4. The package bag sealing end positioning and guiding mechanism according to claim 2, wherein: the mounting panel with all be equipped with on the first curb plate and/or the second curb plate and be used for the installation the slot hole of pivot, the direction that sets up of slot hole with driving belt's tensioning direction is unanimous.

5. The package bag sealing end positioning and guiding mechanism according to claim 1, wherein: 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.

6. The package sealing end positioning and guiding mechanism of claim 5, wherein: the driving assembly comprises a driving motor, a first transmission gear and a second transmission gear; the first transmission gear is fixedly connected with a rotating shaft of the first belt wheel assembly, and the second transmission gear is fixedly connected with a rotating shaft of the second belt wheel assembly; the first transmission gear and the second transmission gear are meshed with each other, and a driving gear of the driving motor is meshed with the first transmission gear or the second transmission gear.

7. The package sealing end positioning and guiding mechanism of claim 6, wherein: and one sides of the first transmission gear and the second transmission gear are respectively provided with a brake component for stopping the transmission gears from rotating.

8. The package sealing end positioning and guiding mechanism of claim 7, wherein: the brake assembly comprises a driving cylinder and an extrusion piece, and the extrusion piece extrudes the transmission gear to stop rotating under the action of the driving cylinder.

9. The package sealing end positioning and guiding mechanism of claim 8, wherein: the extrusion piece is formed with an arc end matched with the first transmission gear or the second transmission gear.

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