CN217533485U

CN217533485U - Wrapping bag sack presss from both sides tight plastic sealing device and grain processing equipment

Info

Publication number: CN217533485U
Application number: CN202221361048.1U
Authority: CN
Inventors: 蒋江; 刘胜林; 欧阳成; 扶宇阳; 刘耀华; 胡嘉靖; 黄志康
Original assignee: Hunan Chenzhou Grain & Oil Machinery Co ltd
Current assignee: Hunan Chenzhou Grain & Oil Machinery Co ltd
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2022-10-04
Anticipated expiration: 2032-06-01

Abstract

The utility model discloses a wrapping bag sack presss from both sides tight plastic sealing device, the sack of the wrapping bag that the clamping unit was waited to heat-seal is fixed through two clamping pieces centre gripping of laying relatively, subsequent plastic and sealing of being convenient for, the subassembly of strikeing flat drives two clamping pieces through two pieces of strikeing flat and keep away from each other in order to drag the wrapping bag sack and level, the sack that compresses tightly the subassembly through laying respectively in the wrapping bag both sides is close to each other and flattens the wrapping bag, realize the plastic of sack, the heat-seal subassembly is close to each other through laying respectively two heat-seals of wrapping bag both sides and heat-seals the sack of wrapping bag, accomplish the heat-seal of wrapping bag and seal; the sack of the fixed wrapping bag of clamping components centre gripping is passed through to this scheme, and the plastic of wrapping bag sack is realized to rethread tear flat subassembly and compress tightly the subassembly to behind the heat-seal effect when making the heat-seal subassembly heat-seal, the wrapping bag sack after the heat-seal is accomplished is pleasing to the eye. The utility model also discloses a grain processing equipment of including the tight plastic sealing device of above-mentioned wrapping bag sack clamp.

Description

Wrapping bag sack presss from both sides tight plastic sealing device and grain processing equipment

Technical Field

The utility model relates to a wrapping bag processing technology field especially relates to a tight plastic sealing device of wrapping bag sack clamp. In addition, still relate to a grain processing equipment including above-mentioned wrapping bag sack presss from both sides tight plastic sealing device.

Background

The wrapping bag wide application is in order to realize the packing to all kinds of products in every industry, so that the storage of product, show and sale, and whether the wrapping bag is pleasing to the eye after the packing, can produce certain influence to the show of product and sale, consequently before the wrapping bag seals, need carry out the plastic to the wrapping bag sack, so that the wrapping bag after sealing is pleasing to the eye, however, current wrapping bag heat-sealing device does not have plastic reason bag function, the sack after the heat-seal is easily folded phenomenon appears, lead to the heat-seal effect poor and the wrapping bag after sealing not pleasing to the eye, if additionally use solitary shaping device to carry out the plastic, then can lead to the process complicated, and the cost is expensive.

SUMMERY OF THE UTILITY MODEL

The utility model provides a wrapping bag sack presss from both sides tight plastic sealing device and grain processing equipment to solve current sealing device and can't carry out the plastic before the wrapping bag seals, lead to the wrapping bag heat-seal effect poor, the not aesthetic technical problem of appearance.

According to the utility model discloses an aspect provides a tight plastic sealing device of wrapping bag sack clamp, include: the clamping assembly comprises two clamping pieces which are oppositely arranged in the length direction of the bag opening, and the clamping pieces are used for clamping the bag opening from two opposite sides in the thickness direction of the bag; the bag opening flattening assembly comprises two flattening pieces which are respectively connected with the two clamping pieces and are used for driving the two clamping pieces for clamping the bag opening of the packaging bag to be away from each other so as to flatten the bag opening of the packaging bag; the pressing assembly comprises two pressing pieces which are oppositely arranged in the thickness direction of the packaging bag, the two pressing pieces are used for approaching from two opposite sides in the thickness direction of the packaging bag to clamp and flatten the mouth of the packaging bag, and the pressing pieces are arranged in an area between the two clamping pieces; the heat-seal subassembly includes and is two heat-seal pieces of laying relatively on the thickness direction of wrapping bag, and two heat-seal pieces are used for being close to each other and then with wrapping bag sack heat-seal from the relative both sides of the thickness direction of wrapping bag, and the vertical height of heat-seal piece is higher than the vertical height of clamping piece.

As a further improvement of the above technical solution:

furthermore, the packaging bag mouth clamping, shaping and heat sealing device further comprises a conveying assembly used for conveying the flattening assembly, the conveying assembly comprises two conveying units which are arranged oppositely, the conveying units are connected with the flattening pieces in a one-to-one correspondence mode, and the flattening pieces are arranged on the movable portion of the conveying units.

Furthermore, the conveying unit comprises a conveying cylinder arranged along the conveying direction, a conveying slide rail arranged along the conveying direction, a conveying sliding table fixedly connected with the movable end of the conveying cylinder and arranged on the conveying slide rail in a sliding manner, and a clamping piece used for clamping or loosening the packaging bag, wherein the flattening piece and the clamping piece are arranged on the conveying sliding table at intervals.

Furthermore, the compressing assembly is also provided with an installation frame and a compressing lifting piece which is arranged on the installation frame and connected with the compressing piece and used for driving the compressing piece to vertically lift so as to avoid the packaging bag.

Furthermore, the pressing lifting piece comprises a pressing lifting cylinder vertically arranged on the mounting frame and a pressing U-shaped connecting frame fixedly connected with the output end of the pressing lifting cylinder, and two sides of the pressing U-shaped connecting frame are respectively fixedly connected with the corresponding pressing pieces.

Furthermore, the pressing piece comprises a pressing cylinder arranged on the pressing U-shaped connecting frame along the conveying direction and a pressing part arranged along the length direction and fixedly connected with the movable end of the pressing cylinder.

Furthermore, the heat-seal subassembly still is equipped with to lay and is used for driving the heat-seal piece vertical lift in order to dodge the heat-seal lifting member of wrapping bag on compressing tightly the U-shaped link and being connected with the heat-seal.

Further, the heat-seal lifting piece comprises a heat-seal lifting cylinder vertically arranged on the compression U-shaped connecting frame and a heat-seal U-shaped connecting frame fixedly connected with the output end of the heat-seal lifting cylinder, and two sides of the heat-seal U-shaped connecting frame are respectively fixedly connected with the corresponding heat-seal pieces.

Further, the heat sealing piece comprises a heat sealing air cylinder arranged on the heat sealing U-shaped connecting frame along the conveying direction and a heat sealing part which is arranged along the length direction and is fixedly connected with the movable end of the heat sealing air cylinder.

According to another aspect of the invention, the grain processing equipment comprises the packaging bag opening clamping, shaping and heat-sealing device.

The utility model discloses following beneficial effect has:

the utility model discloses a wrapping bag sack presss from both sides tight plastic sealing device, the sack of the wrapping bag that the clamping unit was waited to heat-seal is fixed through two clamping pieces centre gripping of laying relatively, subsequent plastic and the sealing of being convenient for, it drives two clamping pieces through two piece of strikeing to tear the subassembly and keep away from each other in order to drag the wrapping bag sack and level, it is close to each other through two pressing members respectively laid in wrapping bag both sides and flattens the sack of wrapping bag to compress tightly the subassembly, guarantee that the sack is vertical, realize the plastic of sack, the heat-seal subassembly is close to each other through two heat-seals respectively laid in wrapping bag both sides and heat-seals the sack of wrapping bag, accomplish the heat-seal of wrapping bag and seal; the sack of the fixed wrapping bag of clamping components centre gripping is passed through to this scheme, and the plastic of wrapping bag sack is realized to rethread rip flat subassembly and compress tightly the subassembly to after the heat-seal effect when making the heat-seal subassembly heat-seal, the wrapping bag sack after the heat-seal is accomplished is pleasing to the eye, is suitable for extensive popularization and application.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

FIG. 1 is a schematic structural view of a bag mouth clamping, shaping and heat-sealing device for a packaging bag according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the structure of the bag mouth clamping, shaping and heat sealing device according to the preferred embodiment of the present invention;

FIG. 3 is a schematic view of a portion of the structure of the bag mouth clamping, shaping and heat sealing device according to the preferred embodiment of the present invention;

FIG. 4 is a schematic view of a portion of the structure of the bag mouth clamping, shaping and heat sealing device according to the preferred embodiment of the present invention;

FIG. 5 is a schematic view of a portion of the structure of the bag mouth clamping, shaping and heat sealing device according to the preferred embodiment of the present invention;

fig. 6 is a partial structural schematic view of the bag mouth clamping, shaping and heat sealing device according to the preferred embodiment of the present invention.

Illustration of the drawings:

1. a clamping assembly; 11. a clamping member; 2. a rip member; 21. a rip member; 3. a compression assembly; 31. a compression member; 32. a mounting frame; 33. compressing the lifting piece; 331. a compression lifting cylinder; 332. compressing the U-shaped connecting frame; 4. a heat seal assembly; 41. heat sealing; 42. heat sealing the lifting piece; 421. heat-sealing the lifting cylinder; 422. heat-sealing the U-shaped connecting frame; 5. a delivery assembly; 51. a conveying unit; 511. a conveying cylinder; 512. a conveying slide rail; 513. a conveying sliding table; 514. a clamping member.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered below.

FIG. 1 is a schematic structural view of a bag mouth clamping, shaping and heat sealing device according to a preferred embodiment of the present invention; FIG. 2 is a schematic view of a portion of the structure of the bag mouth clamping, shaping and heat sealing device according to the preferred embodiment of the present invention; FIG. 3 is a schematic view of a portion of the structure of the bag mouth clamping, shaping and heat sealing device according to the preferred embodiment of the present invention; FIG. 4 is a schematic view of a portion of the structure of the bag mouth clamping, shaping and heat sealing device according to the preferred embodiment of the present invention; FIG. 5 is a schematic view of a portion of the structure of the bag mouth clamping, shaping and heat sealing device according to the preferred embodiment of the present invention; fig. 6 is a partial structural schematic view of the bag mouth clamping, shaping and heat sealing device according to the preferred embodiment of the present invention.

As shown in fig. 1, the bag mouth clamping, shaping and heat sealing device of the present embodiment includes: the clamping assembly 1 comprises two clamping pieces 11 which are oppositely arranged in the length direction of the bag opening, and the clamping pieces 11 are used for clamping the bag opening from two opposite sides in the thickness direction of the bag; the bag opening flattening assembly 2 comprises two flattening pieces 21 which are respectively connected with the two clamping pieces 11 and are used for driving the two clamping pieces 11 for clamping the bag openings to be away from each other so as to flatten the bag openings; the pressing assembly 3 comprises two pressing pieces 31 which are oppositely arranged in the thickness direction of the packaging bag, the two pressing pieces 31 are used for approaching from two opposite sides in the thickness direction of the packaging bag to clamp and flatten the mouth of the packaging bag, and the pressing pieces 31 are arranged in an area between the two clamping pieces 11; and the heat sealing assembly 4 comprises two heat sealing pieces which are arranged relatively in the thickness direction of the packaging bag, the two heat sealing pieces are used for being close to each other from two opposite sides of the thickness direction of the packaging bag so as to heat seal the bag opening of the packaging bag, and the vertical height of the heat sealing piece 41 is higher than that of the clamping piece 11. Specifically, the utility model discloses a wrapping bag sack presss from both sides tight plastic sealing device, clamping unit 1 is through the relative sack of two clamping pieces 11 that lay of centre gripping fixed waiting the wrapping bag of heat-seal, be convenient for subsequent plastic and seal, tear-off subassembly 2 drives two clamping pieces 11 through two tear-off parts 21 and keeps away from each other so that drag the wrapping bag sack and level, hold-down unit 3 is close to each other through two pressing pieces 31 respectively laid in wrapping bag both sides and flatten the sack of wrapping bag, guarantee that the sack is vertical, realize the plastic of sack, heat-seal unit 4 is close to each other through two heat-seal 41 respectively laid in wrapping bag both sides and heat-seal the sack of wrapping bag, accomplish the heat-seal of wrapping bag and seal; the sack of the fixed wrapping bag of clamping components 1 centre gripping is passed through to this scheme, and the plastic of wrapping bag sack is realized to rethread rip flat subassembly 2 and compress tightly subassembly 3 to heat-seal effect when making 4 heat-seals of heat-seal subassembly after, the wrapping bag sack after the heat-seal is accomplished is pleasing to the eye, is suitable for extensive popularization and application. It will be appreciated that the tear-off elements 21 are arranged in a one-to-one correspondence with the jaws 11.

As shown in fig. 5 and fig. 6, in this embodiment, the package bag mouth clamping, shaping and heat sealing device further includes a conveying assembly 5 for conveying the leveling assembly 2, the conveying assembly 5 includes two conveying units 51 arranged oppositely, the conveying units 51 are connected with the leveling members 21 in a one-to-one correspondence manner, and the leveling members 21 are disposed on the movable portion of the conveying unit 51. Specifically, the bag-tearing member 21 is connected through the conveying unit 51, the clamping member 11 is connected through the bag-tearing member 21, and after the bag is clamped by the clamping member 11, the conveying unit 51 operates to convey the bag. Optionally, the conveying unit 51 is used for conveying the filled packaging bag to the heat sealing assembly 4 for heat sealing; or the heat-sealed packaging bag is conveyed to the next process. It should be understood that the movable part of the delivery unit 51 is connected with the fixed part of the tear-off member 21.

As shown in fig. 5 and 6, in the present embodiment, the conveying unit 51 includes a conveying cylinder 511 disposed along the conveying direction, a conveying slide rail 512 disposed along the conveying direction, a conveying slide table 513 fixedly connected to a movable end of the conveying cylinder 511 and slidably disposed on the conveying slide rail 512, and a clamping member 514 for clamping or releasing the packaging bag, and the leveling member 21 and the clamping member 514 are disposed on the conveying slide table 513 at intervals. Specifically, the conveying cylinder 511 is a telescopic cylinder, the conveying cylinder 511 works to drive the conveying sliding table 513 to slide along the conveying sliding rail 512, so as to drive the clamping piece 514 and the leveling piece 21 to move, so as to realize conveying of the packaging bag, and the clamping piece 514 and the clamping piece 11 are arranged at intervals, so that the clamping piece 514 and the clamping piece 11 respectively correspond to different stations; the specific conveying process is as follows: the clamping piece 514 clamps the heat-sealed packaging bag, the clamping piece 11 clamps the heat-unsealed packaging bag, the movable end of the conveying air cylinder 511 extends out, the clamping piece 514 loosens the heat-sealed packaging bag, the heat-sealed packaging bag is conveyed to the next process, meanwhile, the heat-unsealed packaging bag is moved to the position below the heat sealing assembly 4 for heat sealing, and the heat-sealed packaging bag is shaped through the flat-pulling assembly 2 and the pressing assembly 3 before heat sealing; after the shaping and heat sealing of the packaging bag are completed, the clamping piece 11 loosens the packaging bag after the heat sealing is completed, the movable end of the conveying air cylinder 511 retracts, the clamping piece 514 clamps the packaging bag after the heat sealing, and the clamping piece 11 clamps the packaging bag which is not subjected to the heat sealing, so that the cycle is repeated, and the shaping, the heat sealing and the conveying of the packaging bag are realized. It should be understood that the specific structure of the telescopic cylinder is well known to those skilled in the art and will not be described in excessive detail herein. Optionally, the clamping member 514 includes a clamping cylinder and two clamping arms respectively connected to two movable ends of the clamping cylinder, and the clamping cylinder operates to move the two clamping arms toward or away from each other to clamp or release the packaging bag. It should be understood that the specific structure of the clamping cylinder is well known to those skilled in the art and will not be described in excessive detail herein. It should be understood that the direction of transport matches the thickness direction of the packages.

As shown in fig. 2 to 4, in this embodiment, the pressing assembly 3 further includes a mounting frame 32 and a pressing lifting member 33 disposed on the mounting frame 32 and connected to the pressing member 31 for driving the pressing member 31 to vertically lift to avoid the packaging bag. Specifically, before the wrapping bag got into heat-seal assembly 4, compress tightly 33 and drive and compress tightly 31 rebound to dodge the wrapping bag, after the wrapping bag got into heat-seal assembly 4, compress tightly 33 and drive and compress tightly 31 rebound, realize flattening and the plastic to the wrapping bag sack.

As shown in fig. 2 to 4, in this embodiment, the pressing lifting element 33 includes a pressing lifting cylinder 331 vertically disposed on the mounting frame 32, and a pressing U-shaped connecting frame 332 fixedly connected to an output end of the pressing lifting cylinder 331, and two sides of the pressing U-shaped connecting frame 332 are respectively fixedly connected to the corresponding pressing elements 31. Specifically, the two sides of the opening end of the compressing U-shaped connecting frame 332 are respectively fixedly connected with the two compressing members 31, the compressing lifting cylinder 331 is a telescopic cylinder, and the movable end of the compressing lifting cylinder 331 stretches vertically to drive the compressing U-shaped connecting frame 332 to stretch vertically, so as to drive the compressing members 31 to move vertically to avoid the packaging bags. Optionally, a plurality of pressing lifting cylinders 331 are arranged at intervals along the sealing direction, and the pressing U-shaped connecting frame 332 is driven to vertically lift by the pressing lifting cylinders 331, so that the pressing U-shaped connecting frame 332 can lift stably.

As shown in fig. 2 to 4, in the present embodiment, the pressing member 31 includes a pressing cylinder arranged on the pressing U-shaped connecting frame 332 in the conveying direction and a pressing portion arranged in the length direction and fixedly connected to the movable end of the pressing cylinder. Specifically, compress tightly the cylinder and be telescopic cylinder, compress tightly the expansion end of cylinder and stretch out along direction of delivery to make the portion of compressing tightly compress tightly the sack of wrapping bag, and then make the wrapping bag sack vertical, the heat-seal of being convenient for seals. Optionally, the pressing part is one or more of a pressing plate, a pressing block or a pressing strip. Optionally, compress tightly the cylinder and laid a plurality ofly along sealing the direction, drive through a plurality of cylinders that compress tightly and compress tightly the portion and remove, move steadily, compress tightly stably, the plastic is effectual.

As shown in fig. 2-4, in this embodiment, the heat sealing assembly 4 further has a heat sealing lifting member 42 disposed on the compressing U-shaped connecting frame 332 and connected to the heat sealing member 41 for driving the heat sealing member 41 to vertically lift to avoid the packaging bag. Specifically, before the wrapping bag gets into heat-seal assembly 4, because the wrapping bag is not flattened by pressure pack 3, the sack of wrapping bag often is in the state of buckling, and its length on the direction of delivery after buckling is easily greater than the distance between two heat-seal 41, consequently, before pressure pack 3 compresses tightly the sack of wrapping bag, heat-seal lifter 42 drives heat-seal 41 rebound to dodge the wrapping bag, is compressed tightly by pressure pack 3 at the sack of wrapping bag, and keeps vertical back, heat-seal lifter 42 drives heat-seal 41 rebound, realizes the heat-seal.

As shown in fig. 2 to 4, in the present embodiment, the heat-sealing lifting member 42 includes a heat-sealing lifting cylinder 421 vertically disposed on the pressing U-shaped connecting frame 332, and a heat-sealing U-shaped connecting frame 422 fixedly connected to an output end of the heat-sealing lifting cylinder 421, and two sides of the heat-sealing U-shaped connecting frame 422 are respectively fixedly connected to the corresponding heat-sealing members 41. Specifically, the both sides of the open end of heat-seal U-shaped link 422 are connected with two heat-seal pieces 41 respectively, and heat-seal lift cylinder 421 is telescopic cylinder, and the expansion end of heat-seal lift cylinder 421 is vertical flexible to drive the vertical flexible of heat-seal U-shaped link 422, and then drive the vertical removal of heat-seal piece 41, in order to dodge the wrapping bag.

As shown in fig. 2 to 4, in the present embodiment, the heat seal 41 includes a heat seal cylinder arranged on the heat seal U-shaped connecting frame 422 in the conveying direction and a heat seal portion arranged in the longitudinal direction and fixedly connected to the movable end of the heat seal cylinder. Specifically, the heat-seal cylinder is telescopic cylinder, and the expansion end of heat-seal cylinder stretches out along direction of delivery to make the sack of heat-seal portion butt wrapping bag, realize the heat-seal. Optionally, the heat seal is one or more of a heat seal plate, a heat seal block, and a heat seal bar. Optionally, the heat-seal cylinder has laid a plurality ofly along sealing the direction, drives heat-seal portion through a plurality of heat-seal cylinders and removes, and the motion is steady, compresses tightly stably, and the plastic is effectual.

As shown in fig. 2 to 4, in the present embodiment, the clamping member 11 includes a clamping cylinder and two clamping arms, and the clamping arms are connected to the movable ends of the clamping cylinder in a one-to-one correspondence. Specifically, the clamping cylinder works to drive the two clamping arms to approach each other or to move away from each other, so as to clamp or loosen the packaging bag. It should be understood that the specific structure of the clamping cylinder is well known to those skilled in the art and will not be described in excessive detail herein. Optionally, the clamping cylinder and the clamping cylinder are the same or similar components.

The grain processing equipment of this embodiment includes that foretell wrapping bag sack presss from both sides tight plastic sealing device. Particularly, the rice bag heat sealing device is clamped and shaped by the bag opening of the packaging bag to realize heat sealing after filling of the rice bag for packaging the grains, so that the rice bag is good in heat sealing effect and attractive in appearance.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a wrapping bag sack presss from both sides tight plastic sealing device which characterized in that includes:

the clamping assembly (1) comprises two clamping pieces (11) which are oppositely arranged in the length direction of the bag opening, and the clamping pieces (11) are used for clamping the bag opening from two opposite sides in the thickness direction of the bag;

the tearing-off component (2) comprises two tearing-off pieces (21) which are respectively connected with the two clamping pieces (11) and are used for driving the two clamping pieces (11) for clamping the bag mouth of the packaging bag to be away from each other so as to pull and flatten the bag mouth of the packaging bag;

the pressing assembly (3) comprises two pressing pieces (31) which are oppositely arranged in the thickness direction of the packaging bag, the two pressing pieces (31) are used for approaching to each other from two opposite sides in the thickness direction of the packaging bag so as to clamp and flatten the mouth of the packaging bag, and the pressing pieces (31) are arranged in an area between the two clamping pieces (11);

and the heat sealing assembly (4) comprises two heat sealing pieces which are arranged relatively in the thickness direction of the packaging bag, the two heat sealing pieces are used for being close to each other from the two opposite sides of the thickness direction of the packaging bag so as to heat seal the mouth of the packaging bag, and the vertical height of each heat sealing piece (41) is higher than that of the clamping piece (11).

2. The packaging bag mouth clamping, shaping and heat-sealing device according to claim 1, wherein the packaging bag mouth clamping, shaping and heat-sealing device further comprises a conveying assembly (5) for conveying the flattening assembly (2), the conveying assembly (5) comprises two conveying units (51) which are arranged oppositely, the conveying units (51) are connected with the flattening pieces (21) in a one-to-one correspondence manner, and the flattening pieces (21) are arranged on movable parts of the conveying units (51).

3. The packaging bag mouth clamping, shaping and heat-sealing device as claimed in claim 2, wherein the conveying unit (51) comprises a conveying air cylinder (511) arranged along the conveying direction, a conveying slide rail (512) arranged along the conveying direction, a conveying slide table (513) fixedly connected with the movable end of the conveying air cylinder (511) and slidably arranged on the conveying slide rail (512), and a clamping member (514) used for clamping or loosening the packaging bag, and the tearing member (21) and the clamping member (514) are arranged on the conveying slide table (513) at intervals.

4. The packaging bag opening clamping, shaping and heat-sealing device as claimed in claim 1, wherein the compressing assembly (3) is further provided with a mounting frame (32) and a compressing and lifting member (33) which is arranged on the mounting frame (32) and connected with the compressing member (31) and used for driving the compressing member (31) to vertically lift to avoid the packaging bag.

5. The packaging bag mouth clamping, shaping and heat-sealing device of claim 4, wherein the compressing and lifting piece (33) comprises a compressing and lifting cylinder (331) vertically arranged on the mounting frame (32) and a compressing and U-shaped connecting frame (332) fixedly connected with the output end of the compressing and lifting cylinder (331), and two sides of the compressing and U-shaped connecting frame (332) are respectively fixedly connected with the corresponding compressing pieces (31).

6. The bag mouth clamping, shaping and heat-sealing device of claim 5, wherein the pressing member (31) comprises a pressing cylinder arranged on the pressing U-shaped connecting frame (332) along the conveying direction and a pressing part arranged along the length direction and fixedly connected with the movable end of the pressing cylinder.

7. The bag mouth clamping, shaping and heat-sealing device of claim 5, wherein the heat-sealing assembly (4) is further provided with a heat-sealing lifting piece (42) which is arranged on the compressing U-shaped connecting frame (332) and connected with the heat-sealing piece (41) and is used for driving the heat-sealing piece (41) to vertically lift so as to avoid the packaging bag.

8. The packaging bag opening clamping, shaping and heat-sealing device of claim 7, wherein the heat-sealing lifting piece (42) comprises a heat-sealing lifting cylinder (421) vertically arranged on the compressing U-shaped connecting frame (332) and a heat-sealing U-shaped connecting frame (422) fixedly connected with the output end of the heat-sealing lifting cylinder (421), and two sides of the heat-sealing U-shaped connecting frame (422) are respectively fixedly connected with the corresponding heat-sealing pieces (41).

9. The pouch mouth grip shaping heat seal apparatus of claim 8, wherein the heat seal member (41) includes a heat seal cylinder disposed on the heat seal U-shaped frame (422) along the conveying direction and a heat seal portion disposed along the length direction and fixedly connected to a movable end of the heat seal cylinder.

10. A grain processing apparatus comprising the bag mouth clamping, shaping and heat-sealing device of any one of claims 1 to 9.