CN109774242B

CN109774242B - Bottom pasting machine

Info

Publication number: CN109774242B
Application number: CN201811641766.2A
Authority: CN
Inventors: 张昊; 梁锡沛
Original assignee: Foshan Tecon Package Machinery Co ltd
Current assignee: Foshan Tecon Package Machinery Co ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2020-11-13
Anticipated expiration: 2038-12-29
Also published as: CN109774242A

Abstract

The invention relates to a bottom pasting machine, which comprises an arrangement and arrangement device, a creasing device, a bag bottom expanding device, a valve port insertion device, a secondary forming device, an external reinforcing device, a bottom turning device and a compaction delivery device, wherein the arrangement and arrangement device is arranged on the bag bottom expanding device; can move in coordination with each other and can be adjusted independently, thereby enabling the bottom pasting machine to be suitable for processing and production of paper bags with various sizes and specifications.

Description

Bottom pasting machine

Technical Field

The invention relates to the technical field of paper bag processing, in particular to a bottom pasting machine.

Background

The paper packaging bag is generally manufactured by the following steps of 1, folding a rectangular paper strip along a perpendicular bisector of a long side, and bonding wide sides to obtain a tube bag with an opening at the front end and the rear end; 2. pressing a first transverse indentation and two oblique indentations which respectively form an included angle of 45 degrees with the transverse indentation and are mirror images of each other at two ends of the tubular bag; 3. opening the bag bottom along the first transverse indentation; 4. folding the two sides of the bag bottom inwards along the left and right oblique indentations; 5. pressing a second transverse indentation on the inner side of the tubular bag, turning inwards along the indentation, and folding the bag bottom into a bottom sealing structure; and 6, bonding the bottom sealing structure by using glue to obtain a finished paper bag.

Because the size specification of container bag is more various, the adaptability to multiple container bag of machine of sticking with the hands or the feet among the prior art is relatively weak, is difficult to adapt to the processing production of multiple container bag.

Disclosure of Invention

The invention aims to provide a lake bottom machine which can be suitable for processing paper bags with various sizes.

The above object of the present invention is achieved by the following technical solutions: a bottom pasting machine, which comprises: the method comprises the following steps:

A. the arrangement and arrangement device comprises a first rack, wherein the first rack is provided with a feeding platform, an arrangement mechanism and an arrangement mechanism; the arrangement mechanism comprises a conveying assembly and flanges which are uniformly arranged on the conveying assembly at intervals.

B. The creasing device comprises a second rack, wherein the second rack is provided with a power source, and an inclined creasing mechanism, a transverse creasing mechanism, a cutting mechanism and a paper bag conveying mechanism which are sequentially arranged along the conveying direction of the paper bag; the frame is also provided with an indentation differential assembly used for adjusting the oblique indentation mechanism; the cutter differential assembly is used for adjusting the two cutter assemblies; the feeding differential component is used for connecting the arrangement device;

C. the bag bottom opening device comprises a third rack, and the third rack is provided with an opening suction component opening component and a flattening component which are sequentially arranged along the conveying direction of the paper bag; the opening component is also provided with a time delay mechanism;

D. the valve port inserting device comprises a fourth rack, and the fourth rack is provided with a composite paper roll mechanism, a traction cutter mechanism, a valve port gluing mechanism, a folding roller mechanism and a paper pasting cylinder mechanism; the fourth frame is also provided with a sticker speed change assembly for changing the sticker period;

E. the secondary forming device comprises a smoothing mechanism, an indentation mechanism, a primary forming mechanism, an opening mechanism, a sealing and gluing mechanism and a bottom closing forming mechanism which are sequentially arranged;

F. the outer reinforcing device is used for attaching outer reinforcing strips to the paper bag, and the structure of the outer reinforcing device is the same as that of the valve port inserting device;

G. the bottom turning device comprises a seventh rack, the seventh rack is provided with an upper guide rod and a lower guide rod which are positioned at the tail end of the vertical conveying assembly, the seventh rack is provided with a horizontal conveying mechanism corresponding to the vertical conveying mechanism, and one side of the horizontal conveying mechanism is provided with a direction-changing conveying mechanism;

H. the compaction delivery device comprises an upper pressing conveyor belt and a lower pressing conveyor belt;

further: the conveying assembly comprises two groups of fixed arrangement assemblies and one group of movable arrangement assemblies, and the first frame is provided with a first adjusting assembly for adjusting the movable arrangement assemblies to be far away from or close to the fixed arrangement assemblies.

Further: the indentation differential assembly comprises a mandrel, a first differential gear, a handle and a second differential gear, wherein the first differential gear is rotatably arranged on the mandrel; the handle is provided with a planetary gear meshed with the first differential gear and the second differential gear; the mandrel is provided with an output gear; the telescopic pins are arranged on the handle, the second rack is provided with a fixed cover, and the fixed cover is provided with a plurality of pin holes which are uniformly arranged on the circumference and are used for being matched with the pins; the left driving gear is meshed with the output gear, and the right driving gear is meshed with the first differential gear; the feeding differential assembly and the indentation differential assembly have the same structure.

Further: the cutter differential assembly comprises a first angle adjusting assembly arranged between a first driving gear and a second driving gear, and a second angle adjusting assembly arranged between the second driving gear and a third driving gear.

Further: the opening assembly comprises a box body arranged on a third rack, a main gear capable of rotating around the axis of the box body is arranged in the box body, a combined fork rotating along with the main gear is embedded in the main gear, universal joint forks rotatably arranged on the box body are connected to two sides of the combined fork through cross shafts, and one end of each universal joint fork, which is opposite to each cross shaft, is connected with a shifting pipe which is inserted into the bottom of a sucked paper bag through rotation and continuously expands the bottom of the paper bag; the opening component is also provided with a time delay mechanism and an externally connected first driving shaft, and a gear set for transmission is arranged between the time delay mechanism and the main gear; and a positioning flange ring is arranged on the third rack, a worm wheel and worm assembly is arranged in the positioning flange ring, a radial sliding groove is formed in the worm wheel, and a sliding block which is embedded in the sliding groove and slides relative to the sliding groove is sleeved outside the rotating shaft.

Further: the fourth frame is provided with a main driving shaft, and the main driving shaft simultaneously drives the sealing and gluing mechanism, the composite paper roll mechanism, the traction cutter mechanism, the folding roller mechanism and the paper pasting cylinder mechanism to operate through the paper pasting speed changing assembly; the paster speed change component comprises a shell, wherein an input bevel gear, an output bevel gear, a gear carrier and a planetary gear are arranged in the shell; the gear rack is rotatably arranged in the shell, the number of the planetary gears is two, the two planetary gears are rotatably arranged on the gear rack, and the planetary gears are positioned between the input bevel gear and the output bevel gear and are meshed with the input bevel gear and the output bevel gear. The gear rack is fixed with a worm wheel, the shell is provided with a worm in a penetrating way, and the worm is connected with an adjusting hand wheel.

Further: the fourth rack frame is provided with a rejection mechanism, and the rejection mechanism comprises a main rejection conveying rail and an auxiliary rejection conveying rail which are arranged on the fourth rack frame; the main rejection conveying rail is provided with a main rejection belt, the auxiliary rejection conveying rail is provided with an auxiliary rejection belt, one end of the main rejection belt is sleeved on the folding roller body, the rejection mechanism further comprises a rejection needle arranged on the folding roller body, and a first switching assembly arranged at the end part of the folding roller body and used for driving the rejection needle to radially extend out.

Further: the traction cutter mechanism comprises a mounting seat, the fourth rack is provided with a guide rail arranged along the conveying direction of the paper bag, the mounting seat is slidably arranged on the guide rail, and the mounting seat is provided with a walking assembly;

the traction cutter mechanism comprises a main transmission shaft arranged on the mounting seat, and a main traction assembly, a cutting assembly and an auxiliary traction assembly which are driven by the main transmission shaft and are sequentially arranged; the main traction assembly comprises a main traction roller, and a traction speed regulation assembly is arranged between the main transmission shaft and the main traction roller.

Further: the cutting assembly comprises a movable cutter assembly and a fixed cutter assembly, the movable cutter assembly comprises a movable cutter shaft body, the movable cutter shaft body is provided with a movable cutter extending axially, the blade of the movable cutter extends out of the movable cutter shaft body, the fourth frame is provided with a driving conjugate gear driven by a main transmission shaft, the movable cutter shaft body is provided with a driven conjugate gear, the driving conjugate gear and the driven conjugate gear are mutually meshed, and the part of the driven conjugate gear close to the rotation center corresponds to the movable cutter.

Further: the turning conveying mechanism comprises a front conveying piece positioned at one end, close to the vertical conveying mechanism, of the seventh rack and an active conveying piece positioned at the other end of the seventh rack, wherein the height of the active conveying piece is higher than that of the front conveying piece, and a guide belt is sleeved between the active conveying piece and the front conveying piece; the front conveying pieces are arranged obliquely to the conveying direction of the paper bags, and the transverse distance between every two adjacent front conveying pieces is smaller than that between every two adjacent active conveying pieces; the upper guide rod and the lower guide rod are both positioned on the conveying path of the paper bag and are obliquely arranged towards one side of the guide conveying mechanism.

In conclusion, the beneficial technical effects of the invention are as follows: the device comprises an arrangement and arrangement device A, an indentation device B, a bag bottom opening device C, a valve port insertion device D, a secondary forming device E, an external reinforcement device F, a bottom turning device F and a compaction delivery device; can move in coordination with each other and can be adjusted independently, thereby enabling the bottom pasting machine to be suitable for processing and production of paper bags with various sizes and specifications.

Drawings

FIG. 1 is a schematic view of the bottom pasting machine of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic structural diagram of the aligning mechanism and the collating mechanism;

FIG. 4 is an enlarged view taken at I in FIG. 3;

FIG. 5 is a schematic diagram of a movable array assembly;

FIG. 6 is an enlarged view taken at II in FIG. 5;

FIG. 7 is a schematic diagram of a movable array assembly;

FIG. 8 is a schematic structural view of a stent;

FIG. 9 is a schematic structural view of the indentation apparatus of the present invention;

FIG. 10 is an enlarged view at III of FIG. 9;

FIG. 11 is a schematic diagram of the driving structure of the indentation device and the arrangement and arrangement device;

FIG. 12 is a schematic view of the driving structure of the indentation apparatus;

FIG. 13 is a schematic view of an indentation differential assembly.

FIG. 14 is a schematic structural view of the retaining cap;

FIG. 15 is a schematic structural view of a transverse indentation mechanism;

FIG. 16 is a schematic structural view of the first and second angle adjustment assemblies;

fig. 17 is a schematic view of the general construction of the bag bottom spreader of the present invention.

Figure 18 is a top view of the general construction of the pull-off assembly of the present invention.

Fig. 19 is a schematic view of the general construction of the suck-off assembly of the present invention.

FIG. 20 is a schematic view of the left and right suction arm assemblies of the present invention.

FIG. 21 is a schematic view of the structure of the vacuum receiving pan of the present invention.

Fig. 22 is a schematic view of the general construction of the distractor assembly of the present invention.

Fig. 23 is a schematic structural view of the delay mechanism of the present invention.

Fig. 24 is a schematic view of the general structure of the rolling unit according to the present invention.

FIG. 25 is a schematic view of the valve port insert apparatus of the present invention;

FIG. 26 is a first schematic structural view of a pull cutter mechanism;

FIG. 27 is a second schematic structural view of a cutter pulling mechanism;

FIG. 28 is a schematic view of a cutting assembly;

FIG. 29 is a schematic structural view of a stationary knife assembly;

FIG. 30 is a schematic view of the folding roller mechanism;

FIG. 31 is a schematic view of the folding roller mechanism hiding the folding roller body;

FIG. 32 is a schematic structural view of the cartridge mechanism;

FIG. 33 is a schematic view of the reject mechanism;

FIG. 34 is a schematic view of the valve port glue applying mechanism;

FIG. 35 is a schematic structural view of a shift assembly of the decal;

FIG. 36 is a schematic structural view of the present invention;

FIG. 37 is a schematic view of the leveler mechanism and the indenter mechanism of the present invention;

FIG. 38 is a schematic view of the primary molding mechanism of the present invention;

FIG. 39 is a schematic view of the structure of the opening mechanism of the present invention;

FIG. 40 is a schematic view of the glue application mechanism of the present invention;

FIG. 41 is a schematic structural view of the paper bag bottom-turning device of the present invention;

FIG. 42 is an enlarged view taken at IV in FIG. 41;

FIG. 43 is an enlarged view at V in FIG. 41;

FIG. 44 is a schematic view of the construction of the compaction delivery apparatus;

fig. 45 is an enlarged view at VI in fig. 44.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, the bottom pasting machine comprises an arrangement and arrangement device a, an indentation device B, a bag bottom opening device C, a valve port insertion device D, a secondary forming device E, an external reinforcing device F, a bottom turning device F and a compaction delivery device H which are arranged in sequence.

The arrangement and arrangement device A is used for carrying out equidistant arrangement on paper bags;

referring to fig. 2, the arrangement finishing device a; the automatic sorting machine comprises a first machine frame A1, wherein the first machine frame A1 is provided with an arrangement mechanism A2, a sorting mechanism A3, a transition conveying mechanism A4 and a transmission mechanism A5 for transmitting power to the arrangement mechanism. And the feeding platform A11 is arranged on the upper surface of the first frame A1 and is used for supporting the paper bag.

As shown in fig. 2, the aligning mechanism A2 includes two sets of fixed aligning modules A2a arranged parallel to each other and in the feeding direction and a movable aligning module A2b, the movable aligning module A2b may be close to the fixed aligning module A2a or far from the fixed aligning module A2 a; the fixed arrangement component A2a and the movable arrangement component A2b respectively comprise a support groove A26, a driving chain wheel A21, a driven chain wheel A22 and a gear chain A23 sleeved on the driving chain wheel A21 and the driven chain wheel A22, the gear chain A23 is lower than the feeding platform A11, a plurality of groups of flanges A24 with equal intervals are arranged on the gear chain A23, and the upper parts of the flanges A24 extend out of the feeding platform A11;

as shown in fig. 3 and 5, the support groove a26 is located below the shift chain a23, a support rail a27 is provided at the bottom of the support groove a26, a support roller a25 is connected to the outer side of the rib a24, the support roller a25 abuts against the support rail a27, when the rib a24 is driven by the shift chain a23, the support roller a25 rolls on the support rail a27, and an arc-shaped transition section is provided at one end of the support rail a27 close to the driven sprocket a 22. In the process of paper bag forward conveying, one side edge of the paper bag is always in contact with the flange A24, and the flange A24 is used as a reference in the paper bag conveying process, so that the accuracy in the paper bag conveying process is improved. Because the gyro wheel that sets up on flange A24 is through with supporting rail A27 contact, can support fender chain A23 middle part, avoided because range A23 chain middle part because gravity is flagging, and arouse the change of two adjacent flange A24 intervals, make the container bag carry more accurately, support gyro wheel A25 makes flange A24's operation more stable simultaneously, difficult appearance rocks.

As shown in fig. 3, the end of the first frame a1 is provided with a sprocket drive shaft a19, and the sprocket drive shaft a19 is provided with A3 driving sprockets a21 for cooperating with the gear chain a 23; the chain wheel supporting shaft A12 is installed at one end of the first machine frame A1, the chain wheel supporting shaft A12 is provided with two groups of chain wheel swing arms A13, one ends of the chain wheel swing arms A13 are fixed with the chain wheel swing arms A13 through screws, the deflection angle of the chain wheel swing arms A13 can be adjusted through the screws, the chain wheel swing arms A13 are used for installing driven chain wheels A22 of the fixed arrangement assembly A2a, the tension degree of the gear chain A23 is adjusted through deflection of the angle of the chain wheel swing arms A13, and supporting grooves A26 of the fixed arrangement assembly A2a are fixedly installed on the first machine frame A1. The gear chain A23 can be tensioned by adjusting the deflection angle of the chain wheel swing arm A13, so that the transmission of the gear chain A23 is more stable and reliable. As shown in fig. A3, a tensioning seat a121 is mounted at an end of the sprocket support shaft a12, a fixing block a123 corresponding to the tensioning seat a121 is disposed on the first frame A1, a tensioning screw a122 penetrates through the tensioning seat a123, an end of the tensioning screw a122 abuts against the fixing block a123, and the tensioning screw a122 is rotated to adjust a tensioning force of the sprocket swing arm a13, so as to tension the shift chain a 23.

As shown in fig. 5, the sprocket drive shaft a19 is mounted with a first movable seat a28, the first movable seat a28 can slide axially along the sprocket drive shaft a19, the driving sprocket a21 of the movable array assembly A2b is mounted on the first movable seat a28, and the driving sprocket a21 rotates with the rotation of the sprocket drive shaft a 19; the chain wheel supporting shaft A12 is provided with a second movable seat A29, the second movable seat A29 can slide along the axial direction of the chain wheel supporting shaft A12, and a driven chain wheel A22 of the movable arrangement component A2b is arranged on a second movable seat A29; two ends of a supporting groove A26 of the movable arrangement component A2b are respectively fixed with a first movable seat A28 and a second movable seat A29; the first machine frame A1 is rotatably provided with a first lead screw A14 and a second lead screw A15, the first lead screw A14 penetrates through a first movable seat A28 and drives the first movable seat A28 to axially move along a chain wheel transmission shaft A19, and the second lead screw A15 penetrates through a second movable seat A29 and drives the second movable seat A29 to axially move along a chain wheel support shaft A12; in order to keep the synchronous movement between the first movable seat A28 and the second movable seat A29, the first lead screw A14 and the second lead screw A15 are driven by a transmission chain. The first frame A1 is provided with a chain adjusting handwheel A16 for driving the first lead screw A14 to rotate.

Because the outermost gear chain A23 in the three gear chains A23 can have a proper position offset, when the size of the paper bag is small, the movable arrangement component A2b moves towards one side of the fixed arrangement component A2a, so that the flanges A24 on the three gear chains A23 are in contact with the side edges of the paper bag, and the edge of the paper bag is uniformly stressed in the pushing process; when the size of the paper bag is large, the movable arrangement component A2b is adjusted to be far away from the fixed arrangement component A2a, the flange A24 on the outermost gear chain A23 is in contact with the proper position of the paper bag, the deviation of the paper bag in the pushing process is reduced, and the arrangement mechanism A2 can adapt to the paper bags with different sizes and specifications.

As shown in fig. 5 and 8, two sets of bottom side adjusting lead screws a17 are installed on the side surface of the first frame a1, the bottom side adjusting lead screw a17 is rotatably installed on the first frame a1, the bottom side adjusting lead screw a17 is matched with the first support a31, the positions of the paper bags on the paper bag arrangement and arrangement device a are adjusted by adjusting the distance between the arrangement conveying belt a32 and the gear chain a23, and bottom side adjusting hand wheels a18 are respectively arranged at the end parts of the two sets of adjusting lead screws a 17.

As shown in fig. 5, the collating mechanism A3 includes a first bracket a31 located on one side of the first frame a1, a collating conveyor a32 is mounted on the first bracket a31, a collating conveyor a32 is higher than the feeding platform a11 and is arranged in parallel with the gear chain a23, and a collating conveyor a32 is located on one side of the first frame a1 close to the fixed array module A2 a. The first support A31 is provided with two groups of vertical belt wheels A33 matched with the arrangement conveying belt A32; as shown in fig. 8, the vertical pulley a33 and the sprocket transmission shaft a19 are provided with a gear box a38, the gear box a38 is provided with two bevel gears a39 which are respectively sleeved with the sprocket transmission shaft a19 and a vertical pulley a33, a group of mutually meshed bevel gears a39 realize transmission of a90 degrees between the two, and the vertical pulley a33 and the sprocket transmission shaft a19 can also realize transmission of a90 degrees through the bevel gears. The running speed of the finishing conveyor belt A32 is consistent with the conveying speed of the gear chain A23; the first bracket A31 is provided with a guide plate A37 which is vertically arranged; the inner side of the collating conveyor a32 in contact with the bottom edge of the paper bag abuts against the guide plate a37 to keep the collating conveyor a32 linearly conveyed without being deformed.

As shown in fig. 5, the collating mechanism A3 further includes a transverse conveying roller a34, a feeding platform a11 extends from an upper portion of the transverse conveying roller a34, a conveying direction of the transverse conveying roller a34 faces the collating conveying belt a32, and the conveying direction of the transverse conveying roller a34 is perpendicular to a conveying direction of the shift chain a 23. Horizontal conveying roller A34 is equipped with three groups, each group of horizontal conveying roller A34 includes two coaxial arrangement's horizontal conveying roller A34, three groups of horizontal conveying roller A34 and three groups of crisscross settings of fender position chain A23, three groups of horizontal conveying roller A34 are close to the one end of sprocket drive axle A19 and are equipped with horizontal transmission belt A35, carry out the transmission through horizontal transmission belt A35 between three groups of horizontal conveying roller A34, make three groups of horizontal conveying roller A34's rotational speed keep the same.

As shown in fig. 7, one of the three sets of transverse conveyor rollers a34 is positioned between two fixed alignment assemblies A2a, and a support seat a36 supporting the transverse conveyor rollers a34 is fixedly mounted on the first frame a 1; the other two sets of transverse transport rollers a34 are located on either side of the movable array module A2 b. as shown in fig. 3, the support base a36 supporting the two sets of transverse transport rollers a34 is fixedly mounted to the bottom of the transverse transport module support channel a 26. When the movable array component A2b moves, the two sets of transverse conveying rollers A34 are driven to move synchronously.

As shown in fig. 3, the transition conveying mechanism a4 includes a transition conveying roller a41 disposed at the end of the first frame a1, a transition paper pressing wheel a42 is disposed above the transition conveying roller a41, a gap is disposed between the transition paper pressing wheel a42 and the transition conveying roller a41, so that paper bags can pass through the gap and be sent to the next processing station by friction, and the transition paper pressing wheel a42 and the transition conveying roller a41 are driven by gears to rotate synchronously; and a transition supporting plate A43 is arranged at the output end of the transition conveying roller A41. The setting of transition conveying mechanism A4 is used for making container bag arrangement finishing device A send into next processing station with the container bag more steady, through the conveying speed who adjusts transition conveying mechanism A4, can make the container bag keep in step with the speed of next station.

As shown in fig. 3 and 4, the transmission mechanism a5 includes a first input shaft a51 rotatably mounted on the first frame a1, an input pulley a52 mounted on the first input shaft a51, and the input pulley a52 driven by a power source drives the first input shaft a51 to rotate; the end of the first input shaft a51 extends out of the side of the first frame a1, and is mounted with an output pulley a53 at the end; the end part of the chain wheel transmission shaft A19 extends out of the side surface of the first frame A1, and a first belt wheel A54 is arranged at the end part; a section of the rotating shaft of the transition conveying roller A41 extends out of the side surface of the first frame A1, and a second belt wheel A55 is arranged at the end part; the output belt wheel A53, the first belt wheel A54 and the second belt wheel A55 are sleeved with a main transmission belt A58, a tensioning wheel is mounted on the side face of the first machine frame A1 and used for tensioning the main transmission belt A58, and when the output belt wheel A53 rotates, the output belt wheel A53 can drive the sprocket transmission shaft A19 and the transition conveying roller A41 to rotate synchronously. A reversing transmission shaft A57 is arranged on the inner side of the first frame A1, a reversing transmission shaft A57 and a chain wheel transmission shaft A19 are arranged in an angle of A90 degrees, and the reversing transmission shaft A57 and the chain wheel transmission shaft A19 are driven by bevel gears. The reversing drive shaft a57 transmits power to the transverse conveyor roller a34 via a transverse drive belt a 35. Because the power of the arrangement mechanism A2, the arrangement mechanism A3 and the transition conveying mechanism A4 is all from the input belt wheel A52 on the first input shaft A51, the arrangement mechanism A2, the arrangement mechanism A3 and the transition conveying mechanism A4 keep cooperative work by selecting a proper transmission structure.

The paper bag arranging and finishing device A has the following working process:

paper bags to be processed are placed on the feeding platform A11 through an automatic feeding device or manually, and the edge of the paper bag is pushed to the tail end of the first machine frame A1 by the retaining edge A24 of the retaining chain A23 protruding out of the surface of the feeding platform A11. Meanwhile, the paper bags are conveyed to the side of the tidying conveyor belt A32 by the transverse conveying rollers A34 which protrude from the surface of the feeding platform A11 and are lower than the upper edge of the rib A24, so that the bottom edges of the paper bags are abutted against the tidying conveyor belt A32, and the transverse positions of all the paper bags placed on the feeding platform A11 are kept consistent. Because the conveying speeds of the finishing conveyor belt A32 and the gear chain A23 are kept consistent, paper bags cannot deflect, and the paper bags are accurately conveyed into the creasing device B.

The indentation device B is used for forming two groups of symmetrical oblique indentations and transverse indentations at the bottom of the paper bag and cutting off the cut;

referring to fig. 9, the creasing device B includes an oblique creasing mechanism B2 and a transverse creasing mechanism B3 arranged in sequence; in order to improve the effect of increasing the oblique indentation, the indentation device B is provided with two groups of oblique indentation mechanisms B2, and the indentation directions of the two groups of oblique indentation mechanisms B2 are opposite. The creasing device B is also provided with a paper bag conveying mechanism for driving the paper bag to pass through an inclined creasing mechanism B2 and a transverse creasing mechanism; the paper bag is driven to advance by the movement of the conveying belt on the paper bag conveying mechanism.

Refer to fig. 10, 12; the second rack B1 is provided with a main motor B11, the main motor B11 drives a main shaft B12 to rotate through belt transmission, the main shaft B12 is connected with a gear steering box B13, the output end of the gear steering box B13 drives a driving gear B51 in a transmission gear set B5 to rotate through a belt, a transmission gear set B5 comprises a main transmission gear B52 meshed with the driving gear B51, wherein the diameter of the main transmission gear B52 is larger than that of the driving gear B51, the main transmission gear B52 can be enabled to be simultaneously meshed with a plurality of gears, and the driving gear set can simultaneously drive a plurality of mechanisms to be linked.

Referring to fig. 9, the paper bag conveying mechanism includes a horizontal conveying module B41 and a vertical conveying module B42, and each of the horizontal conveying module B41 and the vertical conveying module B42 includes a first upper conveying module B43 and a first lower conveying module B44; the first upper conveying assembly B43 and the first lower conveying assembly B44 both comprise a first conveying track B431, and the second frame B1 is provided with a main conveying belt wheel B49; the first conveying track B431 is also provided with a plurality of uniformly arranged supporting first supporting wheels B433, and the conveying belt is sleeved on the main conveying belt wheel B49 and the first supporting wheels B433; when the paper bag passes through the space between the first upper conveying component B43 and the first lower conveying component B44, the upper surface and the lower surface of the conveying belt are in contact with the upper surface and the lower surface of the paper bag, the paper bag is driven to advance by friction, and due to the arrangement of the first supporting wheels B433, the force applied to the paper bag by each point of the conveying belt is basically kept consistent.

The horizontal conveying assembly B41 is provided with a horizontal supporting plate B411 which is horizontally arranged, the position of the horizontal supporting plate B411 is kept flush with the upper surface of the first lower conveying assembly B44, and the horizontal conveying assembly B41 is used for driving the paper bag to move forwards, and a transverse indentation mechanism B3 forms transverse indentations on the upper surface and the lower surface of the paper bag; when the paper bag is fed into the vertical conveying assembly B42, the vertical conveying assembly B42 has no support in the horizontal direction, and the paper bag naturally sags under the action of gravity.

The outer edge of the first lower conveying assembly B44 of the vertical conveying assembly B42 is aligned with the position of the creasing wheel, namely the edge of the first lower conveying assembly B44 is just positioned at the position of the transverse crease of the paper bag, so that the radian of the bent part is greatly reduced; the vertical conveying assembly B42 is provided with a vertical plate B421 which is vertically arranged, the vertical plate B421 is attached to the first lower conveying assembly B44, the paper bag naturally sags and then contacts with the vertical plate B421, and the vertical plate B421 can support the paper bag and limit the paper bag from excessively deflecting towards the inner side; the tail end of the vertical conveying assembly B42 is provided with a guide piece B46, and the guide piece B46 comprises a horizontal handrail B461 and a vertical handrail B462 which are respectively used for closing the horizontal part and the vertical part of the bending part to be contacted, so that the bending part of the paper bag is limited, and the paper bag enters the next station.

Referring to fig. 10, a second bracket B45 is installed on the first conveying track B431, the first adjusting assembly is a first adjusting seat B451 installed on the second bracket B45, a first adjusting rod B452 penetrates through the first adjusting seat B451, the horizontal supporting plate B461 is fixed with the first adjusting rod B452, and the first adjusting seat B452 is locked and fixed by a screw on the first adjusting seat B451. The second adjusting component is a second adjusting seat B453 arranged on the second bracket B45, a second adjusting rod B454 penetrates through the second adjusting seat B453, the vertical butt plate B462 is fixed on the second adjusting rod B454, the second adjusting seat B454 is locked by the second adjusting seat B453 through a screw,

the container bag is in horizontal conveyor B41 forward motion, through horizontal indentation mechanism B3 extrusion transverse indentation on the container bag, when the container bag entered into vertical conveyor B42, the container bag can hang down naturally along transverse indentation, and the radian of container bag bending part this moment is less, and the container bag of being convenient for aligns with the entry of next station.

The second frame B1 is respectively provided with a first upper conveying assembly B43 in the driving horizontal conveying assembly B41, two synchronous pulleys B47 of the first lower conveying assembly B44 and a main transmission pulley B48 for driving two synchronous pulleys B47; the main transmission belt wheel B48 and the driving gear B51 are in gear transmission. The main driving belt wheel B48 drives the synchronous belt wheel B47 to rotate through a synchronous belt, the main driving belt wheel B48 drives two groups of synchronous belt wheels B47 to rotate, and the synchronous belt wheels B47 drive the main conveying belt wheels B49 of the first upper conveying assembly B43 and the first lower conveying assembly B44 to synchronously move; the transmission structure of the vertical mechanism is the same as that of the horizontal conveying assembly, and the main shaft B12 is connected with another gear steering box B13 to drive a main transmission belt wheel B48 so as to drive a main conveying belt wheel B49 to move.

Referring to fig. 12, the diagonal indentation mechanism B2 includes a left indentation assembly B21 and a right indentation assembly B22; the left indentation component B21 and the right indentation component B22 both comprise an oblique indentation knife and an oblique indentation cushion block linked with the oblique indentation knife; the left creasing assembly B21 and the right creasing assembly B22 are driven by a left driving gear set B23 and a right driving gear set B24 respectively; the left driving gear group B23 comprises two left driving gears which are meshed with each other and used for controlling the oblique creasing knife and the oblique creasing cushion block to move synchronously; the right driving gear group B24 comprises two right driving gears which are meshed with each other and used for controlling the oblique creasing knife and the oblique creasing cushion block to move synchronously; specifically, the right creasing blade and the right driving gear are arranged on the same transmission shaft, a hollow shaft is sleeved outside the transmission shaft, and the left creasing blade and the right creasing blade are respectively arranged at two ends of the hollow shaft, so that the left driving gear and the right driving gear are coaxial and are mutually independent; the mounting structure of the oblique indentation cushion block is the same as that of the indentation knife; an indentation differential component B7 is arranged between the left driving gear and the right driving gear;

refer to fig. 13, 14; the indentation differential assembly B7 comprises a spindle B71, a first differential gear B72 rotatably disposed on the spindle B71, a second differential gear B73 fixedly mounted on the spindle B71, and a handle B74 rotatably mounted on the spindle B71; the handle B74 is provided with a first planetary gear B75 meshed with a first differential gear B72 and a second differential gear B73; the handle B74 is provided with a telescopic pin B76, the second frame B1 is provided with a fixed cover B77, the fixed cover B77 is provided with a plurality of pins B76 holes which are uniformly arranged on the circumference, and when the pin B76 is inserted into the pin B76 hole, the handle B74 can be fixed, namely the relative position of the first planetary gear B75 and the input gear is fixed.

When the spindle B71 is normally operated, the main transmission gear B52 is meshed with the first differential gear B72, the main transmission gear B52 drives the first differential gear B72 to rotate and then transmits kinetic energy to the second differential gear B73 through transmission of the first planetary gear B75, so that the spindle B71 rotates, the output gear B25 is installed on the spindle B71, and the spindle B71 drives the output gear B25 to rotate when rotating; the left drive gear meshes with the output gear B25, and the right drive gear meshes with the first differential gear B72.

When the distance between two oblique indentations on the paper bag needs to be adjusted, wherein the rotating speed of the right indentation knife is constant, the handle B74 drives the first planetary gear B75 to do circular motion outside the second differential gear B73 of the first differential gear B72 by rotating the handle B74, and when the rotating direction of the handle B74 is the same as that of the first differential gear B72, the rotating speed of the second differential gear B73 is lower than that of the first differential gear B72, so that the angle between the left indentation knife and the right indentation knife is increased, and the distance between the two oblique indentations formed on the paper bag is increased; when the rotation direction of the handle B74 is opposite to the rotation direction of the first differential gear B72, the rotation speed of the second differential gear B73 is faster than that of the first differential gear B72, so that the angle between the left creasing blade and the right creasing blade is reduced, and the distance between two oblique creasing cuts formed on the paper bag is reduced. When the indentation position of the inclined indentation mechanism B2 deviates, the inclined indentation mechanism B2 can be adjusted by rotating the handle B74, so that the position of the inclined indentation is kept accurate.

Referring to fig. 12 and 15, the cutter mechanism comprises two cutter assemblies B31; the transverse indentation mechanism B3 comprises an indentation wheel and a rubber coating wheel which are linked, and the indentation wheel and the rubber coating wheel are respectively driven by two first drive gear sets B33 which are meshed with each other; the two groups of cutter assemblies B31 respectively comprise a cutter and a cutter holder matched with the cutter, wherein one group of cutter assemblies B31 is driven by two second drive gear sets B34 which are meshed with each other, so that the two cutter assemblies move synchronously; the other cutter unit B31 is driven by two third gear sets engaged with each other to move synchronously.

The indentation wheel and the first driving wheel are arranged at two ends of a transmission shaft, a rotatable shaft sleeve is sleeved outside the first driving wheel, the cutter and the second driving gear are arranged at two ends of the shaft sleeve, another shaft sleeve is sleeved outside the shaft sleeve, and the other cutter and the third driving gear are arranged at two ends of the shaft sleeve at the outermost side.

The structure of rubber coating wheel corresponds with the mounting structure of indentation wheel, and the structure of two blade holders corresponds with the mounting structure of two cutters.

A first angle adjusting component B36 is arranged between the first driving gear and the second driving gear, the first angle adjusting component B36 comprises a first annular groove B341 arranged on the end face of the second driving gear, a first adjusting screw B361 sliding along the first annular groove B341 is clamped in the first annular groove B341, and the first adjusting screw B361 penetrates through the first driving gear and is locked through a first adjusting nut B362;

a second angle adjusting component B37 is arranged between the second driving gear and the third driving gear; the end face of the third driving gear is provided with a second annular groove B351, a second adjusting screw B371 sliding along the second annular groove is clamped in the second annular groove B351, and the second adjusting screw B371 penetrates through the second driving gear and is locked through a second adjusting nut B372.

When different paper bags are processed, or an error is generated during the operation of the indentation device B, the distance between two notches needs to be adjusted, the distance between the notches cut by the two cutter assemblies B31 can meet the processing requirements by loosening the first adjusting screw B361 and the second adjusting screw B371 and adjusting the angles of the two cutter assemblies B31, and then the first adjusting screw B361 and the second adjusting screw B371 are locked.

Referring to fig. 11, the arrangement and arrangement device a is used for adjusting the transverse position and the longitudinal distance of the paper bags, the arrangement and arrangement device a and the creasing device B share a main motor B11, a main transmission gear B52 is meshed with a second transition gear B61, a feeding differential assembly B62 is in transmission with the second transition gear B61, and a mandrel B71 of the feeding differential assembly B62 is connected with the arrangement and arrangement device a through a belt. When the paper bags of the arrangement and arrangement device A enter the creasing device B, if the paper bags enter the creasing device B in advance or delay, the paper bags can enter the creasing device B, the handle B74 can drive the first planetary gear B75 to do circular motion on the outer sides of the first differential gear B72 and the second differential gear B73 by rotating the handle B74, and when the rotating direction of the handle B74 is the same as the rotating direction of the first differential gear B72, the rotating speed of the second differential gear B73 can be slowed down, so that the advancing speed of the arrangement and arrangement device A is controlled to be slowed down, the running speed of the creasing device B is not changed, and the paper bags can be controlled to enter the creasing device B after being delayed; when the rotation direction of the handle B74 is opposite to the rotation direction of the first differential gear B72, the rotation speed of the second differential gear B73 is increased, the running speed of the arrangement and arrangement device A is correspondingly increased, and therefore the paper bags are controlled to enter the creasing device B in advance; according to the position when the paper bag enters the creasing device B, the position of the paper bag is adjusted through the handle B74, so that the creasing device B and the arranging and finishing device A can work better in a cooperative mode.

The implementation principle of the embodiment is as follows: the inclined creasing mechanism B2, the transverse creasing mechanism B3 and the paper bag conveying mechanism on the creasing device B share the same power source, namely a main motor B11, and all the mechanisms can directly and efficiently operate cooperatively by setting a reasonable transmission ratio; meanwhile, the power of the arrangement and arrangement device A is also from a main motor B11 and is adjusted through a feeding differential assembly B62, so that the indentation device B and the arrangement and arrangement device A can better run.

Thirdly, a bag bottom opening device C for opening the bag bottom of the paper bag

Referring to fig. 17 and 18, the bag bottom spreader C includes a third frame C4, and an open suction assembly C1, a spreading assembly C2, and a flattening assembly C3 are sequentially mounted on the third frame C4. In the embodiment, the first baffle C41 is arranged on both sides of the third frame C4, and a gap for exposing the paper bag bottom at the end of the paper bag is reserved between the two first baffles C41. In the initial state, the paper bag is folded into a rectangular shape, and both ends of the paper bag are open. The sucking-opening assembly C1 comprises a bearing plate C11 mounted on a third frame C4, and the expanding assembly C2 comprises a box body C21 mounted on a third frame C4.

Referring to fig. 18 and 19, a left timing pulley set and a right timing pulley set are mounted on the support plate C11. In the present embodiment, the left synchronous pulley set includes a first synchronous pulley C111 and a second synchronous pulley C112 rotating in the same direction, and the right synchronous pulley set includes a third synchronous pulley C113 and a fourth synchronous pulley C114 rotating in the same direction.

Referring to fig. 18 and 19, a first synchronous belt C115 for rotating the left and right synchronous pulley sets in opposite directions is connected between the left and right synchronous pulley sets in a cross-drive manner. In the present embodiment, the first timing belt C115 is a double-sided tooth timing belt. The first synchronous pulley C111 and the third synchronous pulley C113, and the second synchronous pulley C112 and the fourth synchronous pulley C114 are connected in a cross transmission manner.

Referring to fig. 18 and 19, a driving device for driving the first timing pulley C111 to rotate around its axis is connected to the first timing pulley C111. In this embodiment, the driving device includes a second driving shaft C12 rotatable about its own axis, a driving pulley C121 is fixedly mounted on the second driving shaft C12, a driven pulley C116 is fixedly mounted on the rotating shaft of the first timing pulley C111, and a second timing belt C122 is connected between the driving pulley C121 and the driven pulley C116 in an opening transmission manner. The second drive shaft C12 is connected to a main drive shaft connected to a drive source via a universal joint.

Referring to fig. 19 and 20, the support plate C11 is provided with a left suction arm assembly C13 and a right suction arm assembly C14 respectively positioned at two sides of the paper bag to be sucked at one side facing away from the left and right synchronous pulley sets, wherein the left suction arm assembly C13 is driven by the left synchronous pulley set, and the right suction arm assembly C14 is driven by the right synchronous pulley set. In this embodiment, the structure and the operation principle of the left suction arm assembly C13 and the right suction arm assembly C14 are the same, so the left suction arm assembly C13 is taken as an example, and the description of the right suction arm assembly C14 is omitted.

Referring to fig. 19 and 20, the left suction arm assembly C13 includes a crank C131, one end of the crank C131 is fixed to the rotating shaft of the second timing pulley C112, and the other end of the crank C131 is rotatably connected to a connecting arm C132 through a ball bearing. In the present embodiment, a grinding disc C133 coaxially disposed is fixedly attached to the rotation shaft of the first synchronous pulley C111, a ventilation connecting shaft C134 attached to the connecting arm C132 is rotatably connected to a side of the grinding disc C133 facing away from the support plate C11 through a ball bearing, and an air hole C135 penetrating through the grinding disc C133 and the ventilation connecting shaft C134 is opened in the grinding disc C133. The ventilation connecting shaft C134 is communicated with a pipe joint.

Referring to fig. 18 and 19, a guide bar C136 is fixed to the connecting arm C132 on a side facing away from the grinding disc C133, and an air arm C137 is fixed to the guide bar C136 at an end opposite to the connecting arm C132. In this embodiment, a cavity is formed in the air arm C137, a pipe joint communicating with the cavity is attached to the air arm C137, and an air pipe communicating with the pipe joint of the air arm C137 and the pipe joint of the ventilation connecting shaft C134 is provided. A plurality of air nozzles C138 arranged in parallel and communicating with the cavity are installed on the side surface of the air arm C137.

Referring to fig. 20 and 21, an arc-shaped vacuum receiving disc C141 located between the support plate C11 and the grinding disc C133 is fixed to the support plate C11, and an arc-shaped air distribution crescent groove C142 is opened on a side of the vacuum receiving disc C141 facing away from the support plate C11. In the present embodiment, the air distribution crescent C142 is connected to a vacuum extractor through a pipe joint on a side facing away from the grinding disc C133.

Referring to fig. 22, a first drive shaft C211 rotatable about its axis is inserted into the case C21. In this embodiment, the first drive shaft C211 is connected to the main drive shaft by a universal joint.

Referring to fig. 22, a main gear C22 rotatable about its own axis is installed in a case C21, a yoke C221 rotatable with the main gear C22 is embedded in the main gear C22, and universal yokes C222 rotatably installed on the case C21 are connected to both sides of the yoke C221 through a cross. In the present embodiment, the rotation axis of the universal joint yoke C222 and the rotation axis of the master gear C22 are arranged at an acute angle, and a dip tube C223 inserted into the bottom of the paper bag by rotation is connected to one end of the universal joint yoke C222 opposite to the cross shaft.

Referring to fig. 22 and 23, a delay mechanism is mounted on the first driving shaft C211, and a gear train for transmission located in the case C21 is provided between the delay mechanism and the main gear C22. In this embodiment, the delay mechanism includes a gear sleeve C23 sleeved on the first driving shaft C211 and rotatable relative to the first driving shaft C211, and a second delay gear C232 coaxially disposed with the first driving shaft C211 is fixed on the gear sleeve C23. The gear set comprises a first transmission gear C231 which is also fixed on a gear sleeve C23 and a second transmission gear C212 which is rotatably arranged in a box body C21, and two sides of the second transmission gear C212 are respectively meshed and connected with the first transmission gear C231 and the main gear C22.

Referring to fig. 22 and 23, the delay mechanism further includes a second swing arm C24 fixed to an end of the first driving shaft C211. In the present embodiment, the second swing arm C24 is provided extending radially outward with respect to the first drive shaft C211.

Referring to fig. 22 and 23, the second swing arm C24 has a positioning shaft C25 embedded at an end portion thereof away from the first driving shaft C211 and rotatable about its own axis. In the present embodiment, the axis of the positioning shaft C25 is parallel to the axis of the first drive shaft C211. A first delay gear C251 and a slide bar C252 are respectively fixed at two ends of the positioning shaft C25, and the first delay gear C251 is in meshed connection with a second delay gear C232.

Referring to fig. 22 and 23, a rotating shaft C26 rotatably connected to the slide bar C252 is inserted into the slide bar C252. In the embodiment, the axis of the rotating shaft C26 is perpendicular to the extending direction of the sliding rod C252, and the rotating shaft C26 can slide back and forth along the extending direction of the sliding rod C252. A first slider C261 is sleeved on the rotating shaft C26. In the initial state, the rotation shaft C26 is coaxially disposed with the first driving shaft C211.

Referring to fig. 22 and 23, a positioning flange C27 is mounted on the third frame C4, and a first worm wheel C272 and a first worm C271 are mounted in the positioning flange C27. In the present embodiment, a slide groove C273 extending in the radial direction is formed in the first worm wheel C272, and the first slider C261 is embedded in the slide groove C273 and can slide back and forth along the slide groove C273. And two sides of the first sliding block C261 are respectively extended with a limiting block C262 which is respectively propped against the end surfaces of two sides of the first worm wheel C272.

Referring to fig. 22 and 23, a fixing seat C28 is installed on a side of the first worm wheel C272 facing away from the second swing arm C24, and a third adjusting screw C281 is rotatably installed in the fixing seat C28. In this embodiment, the fixed seat C28 is located at one end of the sliding groove C273. The axis of the third adjusting screw C281 is parallel to the extending direction of the sliding groove C273, and the third adjusting screw C281 is in threaded connection with the first slider C261.

Referring to fig. 24, the flattening assembly C3 includes a nylon flattening wheel C31 rotatably mounted on a third frame C4. In this embodiment, cylindrical flattening rollers C311 symmetrically extend from both axial ends of the nylon flattening wheel C31, and a plurality of roller grooves C312 uniformly circumferentially distributed are axially opened on the outer circumferential surface of the flattening roller C311.

Referring to fig. 24, a aligning plate C32 is fixed to the third frame C4, and the aligning plate C32 extends in a direction perpendicular to the axis of the platen roller C311 and parallel to the conveying direction of the paper bags. In the present embodiment, a plurality of screw holes are provided in the positioning plate C32 in parallel in the extending direction, and the positioning plate C331 is fixed to the screw holes by bolts. A supporting steel plate C33 is installed on one side, back to the positioning plate C32, of the positioning block C331 through bolts, the supporting steel plate C33 is located between the positioning plate C32 and the nylon flattening wheel C31, and the extending direction of the supporting steel plate C33 is parallel to the extending direction of the positioning plate C32 and located on one side, back to the expanding component C2, of the positioning plate C32.

Referring to fig. 24, a nylon wheel C332 is mounted to the support steel plate C33 on the side facing away from the nylon wheel C31. In the present embodiment, two sets of nylon wheels C332 are symmetrically disposed on the side of the supporting steel plate C33 facing away from the spreader assembly C2, and the axis of the nylon wheels C332 is parallel to the axis of the nylon flattening wheel C31.

Referring to fig. 24, upper tensioner roller sets are mounted on both sides of the positioning plate C32. In this embodiment, the upper tensioning wheel set comprises a first tensioning wheel C321 and a second tensioning wheel C322 which are sequentially arranged along the extending direction of the positioning plate C32, and the rotation axes of the first tensioning wheel C321 and the second tensioning wheel C322 are parallel to the axis of the nylon flattening wheel C31.

Referring to fig. 24, lower tensioner pulley sets are installed on both sides of the supporting steel plate C33. In the embodiment, the lower tensioning wheel set comprises a third tensioning wheel C333 and a fourth tensioning wheel C334 which are arranged in sequence along the extending direction of the supporting steel plate C33, and the rotation axes of the third tensioning wheel C333 and the fourth tensioning wheel C334 are parallel to the axis of the nylon flattening wheel C31. An oblique angle plate C335 positioned between the fourth tension wheel C334 and the nylon wheel C332 is fixed on the supporting plate C11.

Referring to fig. 24, a rolling flat conveyor belt C323 connected end to end is sequentially wound on the nylon wheel C332, the nylon flattening wheel C31, the upper tensioning wheel set and the lower tensioning wheel set. In this embodiment, the flattening conveyor belt C323 is in cross transmission connection between the second tensioning wheel C322 and the third tensioning wheel C333, and between the third tensioning wheel C333 and the fourth tensioning wheel C334, and the flattening conveyor belt C323 is in open transmission connection between the fourth tensioning wheel C334 and the nylon wheel C332, between the nylon wheel C332 and the nylon flattening wheel C31, between the nylon flattening wheel C31 and the first tensioning wheel C321, and between the first tensioning wheel C321 and the second tensioning wheel C322.

Before starting, the third adjusting screw C281 is driven to rotate around its own axis, and at this time, the third adjusting screw C281 drives the first slider C261 to slide along the sliding groove C273 relative to the first worm wheel C272, so that the rotating shaft C26 approaches towards the direction of the positioning shaft C25. The first worm C271 is driven to drive the first worm wheel C272 to rotate, the initial position of the rotating shaft C26 is changed to adjust the opening component C2, and the required time delay effect is generated when the tube pulling C223 on the opening component C2 rotates to the maximum angle, namely when the tube pulling C223 is inserted into the bottom of the paper bag to the deepest.

The working principle of the embodiment is as follows: the un-sucked paper bags are conveyed by the conveyor belt towards the sucking-off assembly C1. The driving source is started, the main driving shaft drives the first synchronous belt pulley C111 to rotate through the second driving shaft C12 and the driving device, at the moment, the first synchronous belt pulley C111 and the second synchronous belt pulley C112 realize anticlockwise rotation through the first synchronous belt C115, the third synchronous belt pulley C113 and the fourth synchronous belt pulley C114 realize clockwise rotation through the first synchronous belt C115, and then the two double crank mechanisms which are composed of the crank C131, the connecting arm C132, the supporting plate C11 and the grinding disc C133 are driven to do reciprocating motion similar to a parallelogram, wherein the motion track of the air nozzle C138 is an ellipse.

In the process, the grinding disc C133 rotates around the axis thereof, and the pipe joint on the vacuum receiving disc C141 is continuously vacuumized by the vacuum-pumping machine, so that the air distribution crescent groove C142 communicated with the vacuum receiving disc C is always in an air suction state. When the air hole C135 on the grinding disc C133 rotates to the range of the air distribution crescent groove C142, the vacuum degree in the air hole C135 is reduced because the air distribution crescent groove C142 is in the air suction state, and an adsorption force is provided for the air nozzle C138 through the ventilation connecting shaft C134 and the air arm C137. When the air holes C135 on the left and right grinding discs C133 rotate to the minimum distance between them, the distance between the left and right air exhaust nozzles C138 is also the minimum, so that the left and right air exhaust nozzles C138 respectively adsorb the two sides of the bottom of the paper bag. When the air holes C135 on the left and right grinding discs C133 rotate out of the range of the air distribution crescent groove C142, the two sides of the bottom of the paper bag are sucked away. At the moment, the vacuum degree in the two air holes C135 is gradually recovered to be normal, so that the left and right air exhaust nozzles C138 do not adsorb the two sides of the bottom of the paper bag any more, and the paper bag is conveyed to the position of the opening component C2 along with the conveyor belt.

When the paper bag is conveyed to the position of the spreading assembly C2 by the conveyor belt, the main driving shaft drives the first driving shaft C211, so that the first driving shaft C211 drives the second swing arm C24 to rotate around the axis of the first driving shaft C211, and the second swing arm C24 drives the first delay gear C251 and the slide bar C252 to rotate around the first driving shaft C211 and the rotating shaft C26 respectively through the positioning shaft C25. At this time, the first delay gear C251 drives the second delay gear C232 on the gear sleeve C23 to rotate around the first driving shaft C211 through meshing action, then the first transmission gear C231 on the gear sleeve C23 drives the main gear C22 to rotate through the second transmission gear C212, the main gear C22 rotates to drive the combined fork C221 to rotate, the combined fork C221 drives the shifting pipe C223 through the cross shaft and the universal joint fork C222, so that the shifting pipe C223 is inserted into the bag bottom opening of the paper bag through rotation, and the action of gradually spreading the bottom of the paper bag is realized.

In the process, when the first driving shaft C211, the positioning shaft C25 and the rotating shaft C26 rotate from not being in the same plane to being in the same plane, the first delay gear C251 and the second delay gear C232 rotate relatively, and at the moment, the first delay gear C251 gives the second delay gear C232 an acting force opposite to the rotating direction of the first driving shaft C211, so that the first transmission gear C231 does not rotate along with the rotation of the first driving shaft C211, and the shifting pipe C223 inserted into the bottom of the paper bag stays for a short time when rotating to the maximum angle, so as to maintain the spreading posture of the bottom of the paper bag.

The conveyor belt now transports the spread paper bag further to the inlet of the flattening assembly C3. The bottom of the paper bag firstly contacts the rolling and conveying belt C323 between the fourth tension wheel C334 and the nylon wheel C332, then enters between the rolling and conveying belt C323 and the conveying belt along the inclined angle plate C335, and is output from the conveying tail end of the rolling and conveying assembly C3 after being pressed and flattened by the nylon wheel C332 and the nylon flattening wheel C31 in sequence.

When the distance between the nylon wheel C332 and the nylon flattening wheel C31 is adjusted to adapt to paper bags with different sizes, the bolts between the positioning block C331 and the positioning block C32 are loosened, then the positioning block C331 is installed on the next group of screw holes of the positioning block C32 through the bolts, and the adjustment of the distance between the nylon wheel C332 and the nylon flattening wheel C31 is completed. In the process, the distance between the nylon wheel C332 and the nylon flattening wheel C31 is increased, and the distance between the second tensioning wheel C322 and the third tensioning wheel C333 is decreased; the distance between the nylon pulley C332 and the nylon flattening pulley C31 is reduced, and the distance between the second tensioning pulley C322 and the third tensioning pulley C333 is increased. The flattening conveyor belt C323 is always in tension.

In the embodiment, the opening component C2 is arranged between the suction opening component C1 and the rolling component C3, and the delay mechanism is arranged on the opening component C2, so that the opening component C2 is inserted into the bottom of the paper bag and stays for a short time when the bottom of the paper bag is separated from the vacuum chuck, so as to maintain the opening posture of the bottom of the paper bag, and thus, when the paper bag enters the inlet of the rolling component C3, the bottom of the paper bag is not easy to be reclosed, and the possibility of deviation of the position of a subsequent extrusion crease is effectively avoided; after the processing is finished, the paper bag is fed into the valve port insertion device D.

Fourthly, inserting valve port paper into the bottom of the paper bag by a valve port inserting device D;

as shown in fig. 25, the bag valve port insertion device D includes a fourth frame D1, the fourth frame D1 is installed with a composite paper roll mechanism D2, a traction cutter mechanism D3, a valve port gluing mechanism D4, a folding roller mechanism D5, a paper pasting roller mechanism D6, and a second paper bag conveying mechanism D7 for conveying paper bags, the fourth frame D1 is provided with a main driving shaft D11, and the driving shaft operates by simultaneously driving the valve port gluing mechanism D4, the composite paper roll mechanism D2, the traction cutter mechanism D3, the folding roller mechanism D5, and the paper pasting roller mechanism D6.

As shown in fig. 25, the composite paper roll mechanism D2 includes two sets of air shaft assemblies D21 for mounting paper rolls, respectively, and the two sets of air shaft assemblies D21 can mount paper rolls of different materials, and select corresponding paper tapes for compounding according to valve port paper; a compound gluing mechanism D22 is arranged between the two groups of inflatable shaft assemblies D21 and is used for gluing the surface of the paper tape, the paper tape coated with glue is wound on a plurality of roll shafts to complete compounding, the compounded paper tape is sent to a deviation correcting assembly D24, and the paper tape is accurately conveyed through the deviation correcting assembly D24; the fourth rack D1 is provided with a reversing rod D12 which is obliquely arranged, and the paper tape is conveyed to the traction cutter mechanism D3 after being reversed by the reversing rod D12; the paper tape is unreeled by a traction cutter mechanism D3.

As shown in fig. 26 and 27, the traction cutter mechanism D3 includes a mounting seat D31, and the mounting seat D31 is provided with a second main transmission shaft D311, and a main traction assembly D33, a cutting assembly D34 and an auxiliary traction assembly D35 which are driven by the second main transmission shaft D311 and are sequentially arranged. The fourth frame D1 is provided with an adjustment guide rail D13 arranged along the paper bag conveying direction, and the mounting seat D31 is slidably mounted on the adjustment guide rail D13. A rotatable walking driving shaft D312 is arranged on the mounting seat D31, a walking gear D313 is arranged on the walking driving shaft D312, and a rack D16 matched with the walking gear D313 is arranged on the fourth machine frame D1. Through the rotation of the walking driving shaft D312, the driving mounting seat D31 slides on the fourth machine frame D1 to adjust the distance between the traction cutter mechanism D3 and the folding roller mechanism D5.

The main traction assembly D33 comprises a main traction roller D331 with knurling on the surface, and a main paper pressing wheel D332 pressed on the surface of the main traction roller D331, wherein the main paper pressing wheel D332 adopts a rubber covered wheel; the paper tape passes through the space between the main paper pressing wheel D332 and the main drawing roller D331, and the paper bag is driven to advance under the traction of the main drawing roller D331. The mounting seat D31 is provided with a rotatable paper pressing support shaft D333, the paper pressing support shaft D333 is fixed with a plurality of paper pressing wheel swing arms D334, and the main paper pressing wheel D332 is rotatably arranged at the end part of the paper pressing wheel swing arm D334; and a pull arm D335 is fixedly arranged on the paper pressing support shaft D333, an extension spring is arranged at the end part of the pull arm D335 and the mounting seat D31, and under the elastic force of the extension spring, the main paper pressing wheel D332 is pressed on the surface of the main traction roller D331 so as to facilitate the main traction roller D331 to drive the paper tape to advance.

As shown in fig. 25, a traction speed change assembly D32 is disposed between the second main transmission shaft D311 and the main traction roller D331, the traction speed change assembly D32 includes a driving traction gear D321 disposed on the second main transmission shaft D311, the main traction roller D331 is provided with a driven traction gear D326 and an adjusting support plate D322 coaxially rotating with the driven traction gear D326, the adjusting support plate D322 is provided with a third transition gear D323 engaged with the driving traction gear D321 and the driven traction gear D326; the adjusting support plate D322 is provided with an arc-shaped adjusting groove D324, the circle center of the arc-shaped adjusting groove D324 is located on the rotation axis of the main traction roller D331, and a locking screw D325 used for locking with the mounting seat D31 penetrates through the adjusting groove D324. When the paper feeding speed of the main traction assembly D33 needs to be increased, the driving traction gear D321 with a larger size is replaced, the adjusting support plate D322 is rotated, the third transition gear D323 is meshed with the replaced driving traction gear D321, the transmission ratio of the second main transmission shaft D311 to the main traction roller D331 is changed, and the locking screw D325 is locked, so that the transmission speed of the main traction roller D331 is increased. When the paper feeding speed of the main traction roller D331 needs to be reduced, the driving traction gear D321 with a smaller size is replaced, the locking screw D325 is loosened, the third transition gear D323 is meshed with the replaced driving traction gear D321, and then the locking screw D325 is locked to fix the adjusting support plate D322.

As shown in fig. 27, the cutting assembly D34 includes a movable blade assembly and a fixed blade assembly, the movable blade assembly includes a movable blade shaft body D341, the movable blade shaft body D341 is mounted with an axially extending movable blade D342, and the blade of the movable blade D342 extends out of the movable blade shaft body D341; the fixed cutter component comprises a cutter seat D344 and a fixed cutter D343 fixed on the cutter seat D344; the cutter holder D344 is fixed with a plurality of supporting blocks, the upper surfaces of the supporting blocks are provided with two groups of paper supporting plates D345, and the two groups of paper supporting plates D345 are respectively positioned at two sides of the fixed cutter D343 and used for supporting paper tapes. The fixed knife D343 is provided with a plurality of groups of waist-shaped holes, screws penetrate through the waist-shaped holes to fix the fixed knife D343, the bottom of the knife seat D344 is provided with a second adjusting screw D346, the end of the second adjusting screw D346 abuts against the back of the fixed knife D343, and the position of the fixed knife D343 is adjusted through the second adjusting screw D346.

As shown in fig. 28, the rotation axes of the fixed blade D343 and the movable blade shaft body D341 are inclined, and the blade edge of the fixed blade D343 and the blade edge of the movable blade D342 are in point contact during the rotation of the movable blade assembly, thereby completing the cutting of the paper tape. In the cutting process, the impact force is small, and the cutting is stable. The cutting edge of the moving knife D342 is provided with a plurality of notches, so that an easy-to-tear line is formed on the paper tape. As shown in fig. 27, the mount D31 includes a driving conjugate gear D314 and a driven conjugate gear D315, and the driving conjugate gear D314 and the second main drive shaft D311 are driven by a timing belt. The driven conjugate gear D315 is fixed with the movable cutter shaft body D341, so that the movable cutter D342 on the movable cutter shaft body D341 can rotate at a variable speed, and preferably, when the movable cutter D342 is in contact with the fixed cutter D343, the rotating speed of the movable cutter shaft body D341 is fastest, efficient cutting of the cutting assembly D34 is realized, and the cutting quality is improved.

As shown in fig. 27, the auxiliary traction assembly D35 includes an auxiliary traction roller D351 and an auxiliary platen D352, and the structure of the auxiliary traction assembly D35 is the same as that of the main traction assembly D33; the main traction roller D331 drives the auxiliary traction roller D351 to rotate in a synchronous belt mode through the synchronous belt.

The composite paper rolling mechanism D2 sends rolled paper bags into the traction cutter mechanism D3 through the reversing rod D12 for steering, and the paper bags sequentially pass through the main traction component D33, the cutting component D34 and the auxiliary traction component D35. The easy-to-tear lines are cut at intervals by the length of the valve port paper mounted on the cutting assembly D34, and the auxiliary traction assembly D35 feeds the paper tape to the positions of the folding roller mechanism D5 and the paper cylinder mechanism D6.

As shown in fig. 30 and 31, the folding roller mechanism D5 includes a folding roller body D51 rotatably mounted on the fourth frame D1, the folding roller body D51 is provided with a folding shaft D52, the folding shaft D52 is fixed with a folding piece D53, the folding piece D53 extends out of the folding roller body D51, the end of the folding roller body D51 is provided with a first cam assembly D54 for driving the folding shaft D52 to rotate, and when the folding piece D53 rotates to a corresponding position, the folding piece swings under the action of the first cam assembly D54 to press the head of the paper tape into the paper pasting roller mechanism D6.

As shown in fig. 32, the sticker cartridge mechanism D6 includes a sticker cartridge body D67, a paper clamping opening D61 is provided on the outer peripheral surface of the sticker cartridge body D67, a paper clamping shaft D62 is installed in the paper clamping opening D61, a clip sheet D63 is fixed on the paper clamping shaft D62, and a clip opening for clipping valve-port paper is formed between the clip sheet D63 and the sticker cartridge body D67; the clamping piece D63 is controlled by a second cam assembly, the second cam assembly comprises a paper clamping swing arm D64, a paper clamping cam D65 is arranged at the end part of the sticker cylinder D67, and the paper clamping swing arm D64 is matched with the paper clamping cam D65; in the rotation process of the paster tube body D67, the end part of the swing arm on the paper clamping shaft D62 is always attached to the surface of the paper clamping cam D65 and moves relative to the paper clamping cam D65, so that the clamping piece D63 can periodically swing, and the opening and closing of a clamping opening are controlled; the middle part of the paster barrel D67 is sleeved with a paper pressing belt D66, and the paster barrel D67 is provided with a groove for embedding the paper pressing belt D66; the clamping piece D63 is provided with a notch for the paper pressing belt D66 to pass through, and when the clamping piece D63 clamps valve paper, the paper pressing belt D66 does not influence the normal clamping of the clamping piece D63.

As shown in fig. 33, the folding roller body D51 and the sticker roller body D67 are disposed up and down, and the folding roller body D51 and the sticker roller body D67 move in synchronization. When the paper tape is fed between the folding roller cylinder D51 and the sticker cylinder D67 through the traction cutter mechanism D3, the clamping opening of the sticker cylinder D67 is positioned below the paper tape, and the folding piece D53 is positioned above the paper tape; with the rotation of the folding roller cylinder D51, under the action of the first cam component D54, a folding piece D53 on the folding roller cylinder D51 swings, and the folding piece D53 presses the paper tape cutter head part into the clamping opening; meanwhile, with the continuous rotation of the sticker cylinder D67, the paper clamping shaft D62 rotates under the action of the second cam assembly, so that the clamping opening is closed, and the end part of the paper tape in the clamping opening is clamped. The conveying speed of the traction cutter mechanism D3 is smaller than the movement speeds of the folding roller mechanism D5 and the paper pasting cylinder mechanism D6, and through the speed difference between the two mechanisms, the paper pasting cylinder D67 clamps the end part of the paper bag and breaks a section of valve port paper at the head of the paper tape along the easy-to-tear line to form an independent valve port paper. The sticker cylinder D67 clamps valve port paper and conveys the valve port paper to the position of the paper bag, and after the valve port paper is conveyed to the position, the clamping piece D63 is loosened under the action of the second cam assembly; meanwhile, the paper pressing belt D66 rotates along with the paper pasting cylinder D67, the paper pressing belt D66 is separated from the notch of the clamping piece D63, and the paper pressing belt D66 has the function of taking the valve port paper out of the clamping opening, so that the valve port paper is conveyed to the corresponding part of the paper bag.

The mounting seat D31 is slidably mounted on the fourth frame D1, and the mounting seat D31 is driven to slide on the fourth frame D1 by rotating the traveling gear D313, so that the distance between the auxiliary traction assembly D35 and the paper pasting cylinder mechanism D6 is adjustable, and it is ensured that only one easy-to-tear line exists in the paper tape between the auxiliary traction assembly D35 and the folding roller mechanism D5, and when the paper tape is torn through the paper pasting cylinder D67, only one section of valve port paper is torn.

As shown in fig. 34, the valve port gluing mechanism D4 includes a first glue tray D41 mounted on the fourth frame D1, and a first glue stirring roller D42, a first gluing roller D43, and a first gluing wheel D44 corresponding to the first glue tray D41; the first glue stirring roller D42 is tightly attached to the first glue coating roller D43, and the first glue coating roller D43 is driven by a gear at the end part of the first glue stirring roller D42 to synchronously move; the first gluing roller D43 is tightly attached to the first gluing wheel D44, and the first gluing roller D43 is in transmission with the first gluing wheel D44 through a belt, so that the first gluing roller D43 and the first gluing wheel D44 move synchronously. The first gluing roller D43 is immersed in the first gluing roller D41, glue in the first gluing roller D41 is attached to the surface of the first gluing roller D43, and the glue is smeared on the surface of the first gluing wheel D44 through the contact of the first gluing wheel D44; a front swing arm D45 is arranged between the first gluing roller D43 and the first gluing wheel D44, the first gluing roller D43 is rotatably arranged on a fourth frame D1, the first gluing wheel D44 is rotatably arranged on a front swing arm D45, and the fourth frame D1 is provided with a cylinder for driving the front swing arm D45 to rotate around the first gluing roller D43; the cylinder shaft can drive the first daubing wheel D44 to deflect around the front swing arm D45 in the telescopic process, and the distance between the first daubing wheel D44 and the sticker cylinder body D67 can be controlled in the deflecting process. The adaptability adjustment can be made through the air cylinder according to the actual situation. The gluing principle of the composite gluing mechanism D22 is the same as that of the valve port gluing mechanism D4, the gluing speed change component D23 in the composite gluing mechanism D22 is the same as that of the traction speed change component D32, and the rotating speed of the first gluing wheel D44 is adjusted by replacing gears with different sizes.

As shown in fig. 25, the second paper bag conveying mechanism D7 includes two sets of conveying assemblies for holding two sides of the paper bag and driving the paper bag to advance, and the conveying assemblies include a second conveying rail D71 and a conveying belt wound on the second conveying rail D71. Fourth frame D1 is equipped with the left side and founds wall D72 board and the right side and founds wall D73 board, and the left side is found wall D72 board and is set up the clearance that is used for supplying the container bag to pass between the wall D73 board with the right side, and this clearance is located two sets of conveyor belt centre gripping container bag positions directly over, two surfaces of two sets of conveyor belt centre gripping container bags of messenger, and the drive container bag passes in the clearance that the wall D72 board was found on the left side and the wall D73 board is found on the right side.

The first glue smearing wheel D44 corresponds to the sticker cylinder D67, and in the process that the sticker cylinder D67 carries valve port paper from the auxiliary traction assembly D35 to the paper bag, the valve port paper can be in contact with the first glue smearing wheel D44 to smear glue to the corresponding position of the surface of the valve port paper; it should be noted that, according to different attachment conditions of the valve port paper, the first glue applying wheel D44 with different shapes is arranged. With the continuous rotation of sticker barrel D67, attached the valve port paper to the container bag just below the sticker barrel.

The fourth rack D1 is provided with a paper pressing handrail D14 for pressing paper bags, and the paper pressing handrail D14 is positioned above the left vertical wall D72 plate and the right vertical wall D73 plate; after the valve port paper is attached to the paper bag, the valve port paper is fed to the position of the paper pressing holding rod D14 under the action of the second paper bag conveying mechanism D7, the paper bag is pressed through the paper pressing holding rod D14, and the paper bag is prevented from automatically deforming. The middle part cover of sticker barrel D67 has first paper pressing belt D66, and first paper pressing belt D66 extends and can press at the container bag upper surface along the direction of delivery of container bag, and first paper pressing belt D66 is the same with second container bag conveying mechanism D7's transfer rate.

As shown in fig. 33, the removing mechanism D8 includes a main removing conveying rail D87 and an auxiliary removing conveying rail D88 mounted on the fourth frame D1, the main removing conveying rail D87 and the auxiliary removing conveying rail D88 are arranged in an arc shape, and the main removing conveying rail D87 is provided with an arc-shaped paper supporting handrail D873; a main removing belt D871 is arranged on the main removing conveying rail D87D 87, and an auxiliary removing belt D881 is arranged on the auxiliary removing conveying rail D88; the main conveying rail is provided with a plurality of second supporting wheels D872 for supporting the main removing belt D871 so as to keep the main removing belt D871 and the auxiliary removing belt D881 tightly attached to each other. Main rejection removes the pot head of belt D871 and locates roll barrel D51 of discounting, roll barrel D51 of discounting is equipped with the recess, annular recess, the recess is used for supplying main rejection to remove the embedding of belt D871, main drive power of removing belt D871 comes from roll barrel D51 of discounting, rotation through roll barrel D51 of discounting, it is rotatory that belt D871 is removed to drive main rejection, main rejection is removed belt D871 and is hugged closely each other with vice rejection belt D881 and realize both synchronous motion.

The removing mechanism D8 further comprises a removing needle D81 which is arranged in the folding roller body D51 and can stretch out and draw back in the radial direction, a removing needle cam assembly is arranged at the end part of the folding roller body D51 and comprises a main cam piece D84 and an auxiliary cam piece D85, and a first air changing cylinder D83 which drives the cam pieces to move axially along the folding roller body D51 is arranged on the fourth machine frame D1. The main cam piece D84 is provided with a driving part D841 for controlling the extension of the removing needle D81, the rest part of the main cam piece D84 is flush with the surface of the auxiliary cam piece D85, and a removing needle swing arm D82 for controlling the extension and contraction of the removing needle D81 is matched with the auxiliary cam piece D85 in normal operation; when the end of the paper tape is normally folded, the removing needle swing arm D82 is driven to be matched with the main cam piece D84, and the removing needle D81 is contracted in the folding roller body D51.

When the sensor detects that no paper bag enters the lower part of the sticker cylinder body D67, the first cutting air cylinder D83 drives the main cam piece D84 and the auxiliary cam piece D85 to move axially, drives the main cam piece D84 to move to the position of the removing needle swing arm D82, and enables the removing needle swing arm D82 to be matched with the main cam piece D84. When the removing needle swing arm D82 passes through the driving part D841 of the main cam, the removing needle swing arm D82 is driven to rotate, and the removing needle D81 is driven to extend out of the folding roller body D51 through the transmission of a link mechanism, so that the removing needle D81 is inserted into the paper tape; the fourth machine frame D1 is provided with a second switching cylinder D86 for driving the paper clamping cam D65 to rotate, and the second switching cylinder D86 synchronously moves while the first switching cylinder D83 works to change the movement period of the clamping piece D63 so as to delay the closing of the clamping opening. After the paper tape is pierced by the removing needle D81, the paper tape rotates along with the folding roller body D51, so that the paper bag does not enter the paper pasting roller mechanism D6.

Under the drive of the removing needle D81, the valve port paper moves between the main removing conveying rail D87 and the auxiliary removing conveying rail D88, when the valve port paper is conveyed to the position of the main removing conveying rail D87, the valve port paper is separated from the removing needle D81 under the guidance of the main removing belt D871, and the valve port paper is taken away from the folding roller through the main removing belt D871 and the auxiliary removing belt D881.

As shown in fig. 35, the fourth frame D1 is provided with a sticker speed change assembly D9 connected with the main drive shaft D11, the sticker speed change assembly D9 comprises a housing D91, an input bevel gear D93, an output bevel gear D95, a gear carrier D96 and second planet gears D97 are arranged in the housing D91; the number of the second planetary gears D97 is two, two second planetary gears D97 are rotatably mounted on the carrier D96, and the second planetary gear D97 is positioned between the input bevel gear D93 and the output bevel gear D95 and is meshed with the input bevel gear D93 and the output bevel gear D95. Wherein the main drive shaft D11 is connected to the second input shaft D92 by a bevel gear, the input bevel gear D93 being mounted to the second input shaft D92; the output bevel gear D95 is arranged coaxially with the main driving gear D15 and is driven by a transmission shaft, and the main driving gear D15 drives each mechanism to move through a gear assembly. The gear carrier D96 is rotatably arranged in the shell D91, the gear carrier D96 is fixed with a second worm wheel D98, and the shell D91 is provided with a second worm D99 which is matched with the second worm wheel D98 in a penetrating way. An adjusting hand wheel is arranged on the fourth machine frame D1, and the adjusting hand wheel and the second worm D99 are in transmission through a universal joint.

The second worm D99 is driven to rotate by an adjusting hand wheel, the worm D99 drives the turbine D98 to rotate by a proper angle, the position of the second planetary gear D97 is changed, and the rotating speed of the output bevel gear D95 is increased or reduced compared with the original rotating speed, so that the valve port gluing mechanism D4, the composite paper roll mechanism D2, the traction cutter mechanism D3, the folding roller mechanism D5 and the paper pasting cylinder mechanism D6 are adjusted, and the attaching position of the valve port paper on the paper bag is changed; when the position of the valve port paper attached to the paper bag has errors, the valve port paper can be adjusted through the adjusting hand wheel. And (4) after the completion, the paper bag enters a secondary forming device E.

Fifthly, the secondary forming device E-turns over the paper bag for the second time, and the sealing of the paper bag is completed through glue;

as shown in fig. 36, the secondary forming device E includes a fifth frame E1, two sets of parallel track plates E2 are disposed at the upper end of the fifth frame E1, a gap is formed between the two sets of track plates E2, the two sets of track plates E2 are located in the same plane, and a driving mechanism is disposed on the bottom surface of the two sets of track plates E2; in this embodiment, the driving mechanism is located at both sides of the gap formed by the two sets of track plates E2, and the driving mechanism is used for driving the paper bags placed in the gap formed by the two sets of track plates E2 to move along the length direction of the track plate E2.

Referring to fig. 36, one side of the two groups of track plates E2, which faces away from the driving mechanism, is provided with a flattening mechanism E3, an indentation mechanism E4, a primary forming mechanism E5, an opening mechanism E6, a sealing and gluing mechanism E7 and a bottom closing forming mechanism E8 in sequence along the length direction of the track plate E2, and the bottoms of the primary forming mechanism E5 and the bottom closing forming mechanism E8 are provided with two groups of conveyor belts E9; in this embodiment, a flattening mechanism E3, an indentation mechanism E4, a primary forming mechanism E5, an opening mechanism E6, a sealing and gluing mechanism E7 and a bottom closing and forming mechanism E8 are all mounted on a fifth frame E1, the flattening mechanism E3 is located at the input end of a track plate E2, the bottom closing and forming mechanism E8 is located at the output end of the track plate E2, and the indentation mechanism E4, the primary forming mechanism E5, the opening mechanism E6 and the sealing and gluing mechanism E7 are sequentially arranged between the flattening mechanism E3 and the bottom closing and forming mechanism E8; a handrail plate E10 is arranged between the two groups of conveyor belts E9, the handrail plate E10 is installed on the fifth frame E1, a gap is formed between the handrail plate E10 and the track plate E2, and the tail end of the handrail plate E10 is V-shaped and is vertically and upwardly opened.

Referring to fig. 36 and 37, the leveler mechanism E3 includes a first fixed shaft E31, a second sliding block E32, and a handrail E33, the first fixed shaft E31 is mounted on the fifth frame E1, the second sliding block E32 is mounted on the first fixed shaft E31, the handrail E33 is mounted on the second sliding block E32, and the handrail E33 forms a gap with the track plate E2; in this embodiment, the first fixed shaft E31 is transversely and vertically fixed on the fifth frame E1, the second sliding block E32 is adjustably mounted on the first fixed shaft E31, and the handrail E33 is L-shaped.

Referring to fig. 36 and 37, the creasing mechanism E4 includes a rotating shaft E41, a creasing wheel E42, a sleeve E43, a third swing arm E44 and a first roller E45, the creasing wheel E42 is mounted on the rotating shaft E41, the first roller E45 is mounted on a fifth frame E1 through a connecting plate, the first roller E45 is located on the bottom surface of the track plate E2, the creasing wheel E42 forms a gap with the first roller E45, the rotating shaft E41 and the sleeve E43 are both mounted on the fifth frame E1, and the third swing arm E44 is mounted on the rotating shaft E41 and the sleeve E43; in this embodiment, the third swing arm E44 is adjustably mounted on a sleeve E43, the sleeve E43 is located above the rotating shaft E41, a bearing is disposed between the third swing arm E44 and the rotating shaft E41, and a driving assembly for fixing the rotating shaft E41 to rotate is mounted on the fifth frame E1.

Referring to fig. 36 and 38, each of the primary forming mechanism E5 and the bottom closing forming mechanism E8 includes a folding strip E52, a first folding strip E53, a second folding strip E54, a first pressing plate E55, a second pressing plate E56, and an edge pressing wheel E57, the primary forming mechanism E5 further includes a fixing plate E51, the fixing plate E51, the folding strip E52, the first pressing plate E55, the second pressing plate E56, and the edge pressing wheel E57 are all mounted on the fifth frame E1, the fixing plate E51 forms a gap with the track plate E2, the folding strip E52 abuts against the conveyor belt E9, the first folding strip E53 and the second folding strip E54 are mounted on the folding strip E52, and the first pressing plate E55, the second pressing plate E56, and the edge pressing wheel E57 form a gap with the conveyor belt E9; in the embodiment, the fixing plate E51 is located at the input end of the primary forming mechanism E5, the edge pressing wheel E57 is located at the output end of the primary forming mechanism E5 and the bottom closing forming mechanism E8, the folding strip E52, the first folding strip E53, the second folding strip E54, the first pressing plate E55 and the second pressing plate E56 are sequentially arranged between the fixing plate E51 and the edge pressing wheel E57, the folding strip E52 is arranged along the length direction of the track plate E2, the first folding strip E53 and the second folding strip E54 are arranged in a bending manner, and the input ends of the first pressing plate E55 and the second pressing plate E56 are arranged in an upward inclined manner.

Referring to fig. 36 and 39, the opening mechanism E6 includes an opening rod E61, an opening plate E62, a holding strip E63 and an adjusting mechanism E64, the adjusting mechanism E64 is mounted on the fifth frame E1, the opening rod E61, the opening plate E62 and the holding strip E63 are all mounted on the adjusting mechanism E64, and the holding strip E63, the opening rod E61 and the opening plate E62 all form a gap with the track plate E2; in the present embodiment, the opening lever E61 and the opening plate E62 are arranged in an open manner in a "eight" shape, the ends of the opening lever E61 and the opening plate E62 are fixed, and the end of the opening lever E61 is arranged to be inclined upward; the adjusting mechanism E64 comprises a transverse shaft E641, an adjusting arm E642 and a connecting piece E643, wherein the transverse shaft E641 is transversely and vertically installed on the fifth frame E1, the adjusting arm E642 is installed on the transverse rod, the connecting piece E643 is installed on the adjusting arm E642, and one end of the connecting piece E643, which is far away from the adjusting arm E642, is respectively fixed with the turnover rod E61, the turnover plate E62 and the holding strip E63 through a connecting rod.

Referring to fig. 36 and 40, the seal gluing mechanism E7 includes a second glue receiving tray E71, a glue mixing roller E72, a glue applying roller E73 and a glue applying wheel E74, the second glue receiving tray E71, the glue mixing roller E72, the glue applying roller E73 and the glue applying wheel E74 are all mounted on a fifth frame E1, the glue mixing roller E72 is placed in the second glue receiving tray E71, the glue mixing roller E72 abuts against the glue applying roller E73, the glue applying roller E73 abuts against the glue applying wheel E74, and the glue applying wheel E74 forms a gap with the rail plate E2; in this embodiment, the gluing wheel E74 is sleeved with a pvc glue-carrying film for gluing, the tail ends of the glue mixing roller E72, the gluing roller E73 and the gluing wheel E74 are provided with transmission components for mutual transmission, the gluing roller E73 is located above the glue mixing roller E72, and the second glue bearing disc E71, the glue mixing roller E72, the gluing roller E73 and the gluing wheel E74 are transversely and vertically mounted on the fifth frame E1.

The implementation principle of the embodiment is as follows: placing the paper bag into a gap formed by the two groups of track plates E2, wherein the tail end of the paper bag penetrates through the track plate E2 and is placed on the surface of the track plate E2, and the driving mechanism drives the paper bag to move along the length direction of the track plate E2; the paper bag sequentially passes through a flattening mechanism E3, an indentation mechanism E4, a primary forming mechanism E5, an opening mechanism E6, a sealing and gluing mechanism E7 and a bottom closing forming mechanism E8, the flattening mechanism E3 flattens the paper bag placed on the surface of the track, the flattened paper bag is pressed out of creases through the indentation mechanism E4, the crease-pressed paper bag is folded through the primary forming mechanism E5, and the primary forming mechanism E5 presses the folded paper bag, so that the tail end of the paper bag is formed by folding for the first time; folding forming's container bag is opened through opening mechanism E6, and opening mechanism E6 rights the container bag once more, and the container bag glues the glue through sealing gluing mechanism E7, and the container bag that glues the glue is folded once more through closing end forming mechanism E8, closes end forming mechanism E8 and extrudees the container bag after folding once more again for glue that glues and scribble the container bag end bonds the container bag, thereby realizes the terminal bonding shaping of container bag. This kind of an after forming device E for container bag simple structure, reasonable in design can be accurate effectual the terminal adhesive molding of container bag, the large-scale production container bag of being convenient for is favorable to improving the production efficiency of container bag to reduce the cost of production container bag, be favorable to improving the economic benefits of production container bag. After completion, the paper bag is fed into the external reinforcement device F.

Sixthly, attaching a reinforcing strip to the position of the seal of the paper bag by using an external reinforcing device F;

the structure of outer reinforcement device F is the same with valve port insertion device's structure for attached to the bottom of container bag with the reinforcement strip.

Seventhly, the bottom turning device G-paper bag is vertically conveyed and converted into horizontal conveying;

referring to fig. 41, the paper bag bottom turning device F comprises a seventh rack G1, the seventh rack G1 is provided with a horizontal conveying mechanism G3, and the horizontal conveying mechanism G3 is butted with a vertical conveying mechanism G2; the horizontal conveying mechanism G3 includes a second upper conveying assembly G31 and a second lower conveying assembly G32, both the second upper conveying assembly G31 and the second lower conveying assembly G32 include a third conveying track G33 and a third supporting wheel G34 uniformly mounted on the third conveying track G33, a conveying belt (for convenience of illustration of the drawing, the conveying belt is not shown in the drawing) is sleeved on a third supporting wheel G34 of the third conveying track G33, and the paper bags are conveyed by the conveying belts of the second upper conveying assembly G31 and the second lower conveying assembly G32.

As shown in fig. 41 and 42, the two sides of the second lower conveying assembly G32 are provided with bottom-turning pallets G35, and the bottom-turning pallets G35 are flush with the conveying belts of the second lower conveying assembly G32; the end part of the bottom overturning splint G35 facing the vertical conveying mechanism G2 is provided with an inclined part G36 which is arranged obliquely downwards; an upper guide rod G13 is obliquely arranged on the path of the vertical conveying mechanism G2, an upper guide rod G13 is obliquely arranged from one side of the paper bag to the other side, preferably, the upper guide rod G13 extends to the upper part of the inclined part G36, the height of the upper guide rod G13 is kept flush with the upper surface of the bottom overturning plate G35, and the tail end of the upper guide rod G13 corresponds to the edge of the bottom overturning plate G35. The width of the bottom-turning pallet G35 gradually widens in the paper bag conveying direction. One end of the seventh rack G1, which is close to the vertical conveying mechanism G2, is provided with a front support plate G11, the front support plate G11 is provided with a lower guide support frame G14, a lower guide rod G15 is installed on the lower guide support frame G14, the lower guide rod G15 is positioned on the conveying path of the paper bag and inclines from one side of the paper bag to the other side, the upper guide rod G13 and the lower guide rod G15 have the same inclination direction, and the inclination angle of the lower guide rod G15 is larger than that of the upper guide rod G13. The lower guide rod G15 is rotatably disposed on the lower guide support G14 and locked by a screw, so that the deflection angle of the lower guide rod G15 can be adjusted.

One side of the second lower conveying component G32 is provided with a plurality of groups of bag body direction-changing conveying mechanisms G4, the bag body supporting and conveying components comprise front round belt wheels G41 and driving round belt wheels G43, round belts G42 are sleeved between the driving round belt wheels G43 and the front round belt wheels G41, and the front round belt wheels G41 are lower than the driving round belt wheels G43 in movement. The front supporting plate G11 is provided with a plurality of front supporting wheel seats G46 which are uniformly arranged at intervals, wherein a plurality of front round belt wheels G41 of the bag body direction-changing conveying mechanism G4 are rotatably arranged on the front supporting wheel seats G46; the front supporting wheel seat G46 is fixedly arranged on the front supporting plate G11 through screws, and when the deflection angle of the front supporting wheel seat G46 needs to be adjusted, the adjustment can be carried out through loosening the screws. The front round belt wheels G41 of a plurality of groups of bag body direction changing and conveying mechanisms G4 are arranged on the front support plate G11 in an inclined mode, the lower guide rod G15 is located above the front round belt wheels G41, and the inclined direction of the lower guide rod G15 is preferably consistent with the arrangement direction of the front round belt wheels G41. One end of the seventh rack G1, which is far away from the vertical conveying mechanism G2, is provided with a transmission shaft G12, a driving circular pulley G43 is fixedly arranged on the transmission shaft G12, and the axial position of the driving circular pulley G43 on the transmission shaft G12 is adjustable.

As shown in fig. 42 and 43, the direction-changing conveying mechanism G4 further includes a fifth tensioning wheel G44 and a sixth tensioning wheel G45 mounted on the seventh frame G1, the fifth tensioning wheel G44 is mounted on the path of the circular belt G42 moving from the front circular pulley G41 to the driving circular pulley G43, the fifth tensioning wheel G44 and the driving circular pulley G43 are at the same height, and the fifth tensioning wheel G44 is inclined to the side where the paper bag is turned over; the sixth tension pulley G45 is located on the path of the round belt G42 that is moved by the driving round pulley G43 toward the front round pulley G41. The fifth tensioning wheel G44 and the sixth tensioning wheel G45 are fixed on a seventh machine frame G1 through a tensioning wheel seat G47, the tensioning wheel seat G47 is provided with a kidney-shaped hole, a screw penetrates through the kidney-shaped hole to fix the tensioning wheel seat G47 on a seventh machine frame G1, and the positions and angles of the fifth tensioning wheel G44 and the second tensioning wheel are adjusted according to the actual running condition of the round belt G42. The tension pulley seat G47 of the fifth tension pulley G44 is adjusted to keep the circular belt G42 between the fifth tension pulley G44 and the driving circular pulley G43 parallel to the paper bag conveying direction, so that the paper bag body is shifted from an inclined state to a horizontal state.

The variable speed conveying mechanisms G4 are provided in two sets, mirrored on both sides of the second lower conveying assembly G32. Selecting the turning direction of the paper bag body according to the actual situation; when switching container bag upset direction, through the orientation that changes guide bar G13 and lower guide bar G15 to accomplish the adjustment to the container bag body upset direction, the control container bag body turns over a book or turns over a book to the right left.

The implementation principle of the embodiment is as follows: in the process that the paper bags run from the vertical conveying mechanism G2 to the horizontal conveying mechanism G3, the upper parts of the bag bodies of the paper bags are in contact with the upper guide rods G13, and the lower parts of the bag bodies are in contact with the lower guide rods G15; under the action of the upper guide rod G13 and the lower guide rod G15, the bag body which naturally hangs down deflects to one side; under the action of the upper guide rod G13, the upper part of the bag body is folded and positioned above the bottom-folded support plate G35, the lower part of the bag body is laid above the round belt G42 under the action of the lower guide rod G15, and the round belt G42 gradually rises from one side of the front support plate G11 to one side of the transmission shaft G12 in the process of gradually moving to complete the folding of the paper bag; the slope of the plurality of groups of circular belts G42 gradually increases outwards from the side close to the second lower conveying assembly G32, so that the paper bags can be folded more smoothly. The conveying speed of the round belt G42 is kept the same as that of the horizontal conveying mechanism G3, and the bag bottom of the paper bag and the bag body realize synchronous movement. After completion, the paper bag enters the compacting and feeding device H.

Eighthly, a compaction and delivery device H is used for compacting the paper bag with the pasted bottom and delivering the paper bag;

referring to fig. 44, the paper bag compacting and feeding device H comprises an eighth machine frame H1, wherein a supporting conveyor belt H2 and a plurality of conveyor belt swing arms H3 are mounted on the eighth machine frame H1, a downward pressing conveyor belt H4 is mounted on the conveyor belt swing arm H3, and a driving mechanism for driving the supporting conveyor belt H2 and the downward pressing conveyor belt H4 to move is arranged on the eighth machine frame H1; in this embodiment, the eighth rack H1 includes a rack body H12 and a slide rail H11 fixed on the ground, a second roller H13 is installed at the bottom of the rack body H12, and a wheel groove is formed in the circumferential direction of the second roller H13 and abuts against the slide rail H11, so that the second roller H13 can move along the length direction of the slide rail H11, thereby facilitating the movement of the rack body H12 and facilitating the adjustment of the rack body H12 to a proper position; the support conveyor H2 is located below the lower press conveyor H4 and the support conveyor H2 and the lower press conveyor H4 form a gap, the lower press conveyor H4 compacting the paper bags as they pass through the gap formed by the support conveyor H2 and the lower press conveyor H4; the length of the support conveyor H2 is greater than the length of the lower press conveyor H4, which facilitates the support conveyor H2 supporting and carrying paper bags toward the gap formed by the support conveyor H2 and the lower press conveyor H4.

Referring to fig. 44, a press roller group H5 is mounted on the conveyor belt swing arm H3, and the press roller group H5 extends into the support conveyor belt H2 and the lower press conveyor belt H4; in this embodiment, the pressing roller sets H5 are provided with multiple sets, and the multiple sets of pressing roller sets H5 are distributed on the conveyor belt swing arms H3, so that the supporting conveyor belt H2 and the downward pressing conveyor belt H4 are arranged in an arc shape, thereby being beneficial to compacting paper bags, and the multiple sets of pressing roller sets H5 compact the paper bags for multiple times, thereby ensuring that the paper bags are compacted; the pinch roller wheel set H5 comprises a first pinch roller wheel H51 and a second pinch roller wheel H52, the first pinch roller wheel H51 and the second pinch roller wheel H52 are both installed on the conveying belt swing arm H3, the first pinch roller wheel H51 and the second pinch roller wheel H52 are respectively arranged in the supporting conveying belt H2 and the downward-pressing conveying belt H4, and the second pinch roller wheel H52 is located above the first pinch roller wheel H51.

Referring to fig. 44 and 45, the top of the conveyor belt swing arm H3 is provided with a mounting groove H31, the second pinch roller H52 is provided with a second fixed shaft H521, and the second fixed shaft H521 is arranged in the mounting groove H31; in this embodiment, a third pressing plate H32 is installed at the top of the installation groove H31, a limiting groove is formed in the end of the second fixing shaft H521, a limiting rod H6 is arranged in the limiting groove, the limiting rod H6 penetrates through the other end of the third pressing plate H32 and is fixed with a nut in a threaded manner, the limiting rod H6 is sleeved with a spring H61, and two ends of the spring H61 are respectively abutted against the third pressing plate H32 and the second fixing shaft H521.

Referring to fig. 44, the eighth rack H1 has the receiving conveyor H7 mounted thereon, and the receiving conveyor H7 is located below the output end of the support conveyor H2; in this embodiment, there are two sets of receiving belts H7, two sets of receiving belts H7 form a gap, and two sets of receiving belts H7 are disposed in parallel and in the same plane.

Referring to fig. 44, the eighth frame H1 is hinged with a bearing plate H8, the bearing plate H8 is located below the output end of the bearing conveyor belt H7, a second baffle H82 is arranged on one side of the bearing plate H8 away from the eighth frame H1, and a telescopic supporting rod H81 is hinged to the bottom surface of the bearing plate H8; in the embodiment, the receiving plate H8 is used for collecting paper bags sent by the receiving conveyor belt H7, so that the paper bags are convenient to collect; the second baffle H82 is used for blocking the paper bag and preventing the paper bag from falling to the ground; the support bar H81 is used not only to support the receiving plate H8, but also to adjust the angle formed by the receiving plate H8 and the receiving conveyor H7.

The implementation principle of the embodiment is as follows: placing the paper bags above the supporting conveyor belt H2, and driving the supporting conveyor belt H2 and the pressing conveyor belt H4 to move by the driving mechanism, so that the supporting conveyor belt H2 holds the paper bags to move towards a gap formed by the supporting conveyor belt H2 and the pressing conveyor belt H4; when the paper bag passes through the gap formed by the support conveyor belt H2 and the press conveyor belt H4, the support conveyor belt H2 and the press conveyor belt H4 compact the paper bag, and the press roller wheel set H5 compacts the paper bag again, so that the paper bag is effectively compacted. This kind of container bag compaction send-out device H simple structure sets up rationally, can effectively carry out a lot of extrusion to the container bag for the container bag is by the compaction, thereby the container bag occupies less space, is favorable to depositing the container bag.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A bottom pasting machine is characterized in that: the method comprises the following steps:

the arrangement and arrangement device comprises a first rack, wherein the first rack is provided with a feeding platform, an arrangement mechanism and an arrangement mechanism; the arrangement mechanism comprises a conveying assembly and flanges which are uniformly arranged on the conveying assembly at intervals;

the creasing device comprises a second rack, wherein the second rack is provided with a power source, and an inclined creasing mechanism, a transverse creasing mechanism, a cutting mechanism and a paper bag conveying mechanism which are sequentially arranged along the conveying direction of the paper bag; the second frame is also provided with an indentation differential assembly for adjusting the oblique indentation mechanism; the cutter differential assembly is used for adjusting the two cutter assemblies; the feeding differential component is used for connecting the arrangement device; the paper bag conveying mechanism comprises a horizontal conveying assembly and a vertical conveying assembly, and in the process of driving the paper bag to move forwards, the horizontal indentation mechanism forms horizontal indentations on the upper surface and the lower surface of the paper bag; when the paper bag is fed into the vertical conveying component, the paper bag can naturally droop under the action of gravity because the vertical conveying component is not supported in the horizontal direction,

the bag bottom opening device comprises a third rack, and the third rack is provided with an opening suction component opening component and a flattening component which are sequentially arranged along the conveying direction of the paper bag; the opening component is also provided with a time delay mechanism; first baffles are arranged on two sides of the third rack, and a gap for exposing the bottom of the paper bag at the end part of the paper bag is reserved between the two first baffles;

the valve port inserting device comprises a fourth rack, and the fourth rack is provided with a composite paper roll mechanism, a traction cutter mechanism, a valve port gluing mechanism, a folding roller mechanism and a paper pasting cylinder mechanism; the fourth frame is also provided with a sticker speed change assembly for changing the sticker period;

the secondary forming device comprises a smoothing mechanism, an indentation mechanism, a primary forming mechanism, an opening mechanism, a back cover gluing mechanism and a back cover closing forming mechanism which are arranged in sequence;

the outer reinforcing device is used for attaching outer reinforcing strips to the paper bag, and the structure of the outer reinforcing device is the same as that of the valve port inserting device;

the bottom turning device comprises a seventh rack, the seventh rack is provided with an upper guide rod and a lower guide rod which are positioned at the tail end of the vertical conveying assembly, the seventh rack is provided with a horizontal conveying mechanism corresponding to the vertical conveying mechanism, and one side of the horizontal conveying mechanism is provided with a direction-changing conveying mechanism;

the compaction delivery device comprises an upper pressing conveyor belt and a lower pressing conveyor belt.

2. The bottom pasting machine according to claim 1, wherein: the conveying assembly comprises two groups of fixed arrangement assemblies and one group of movable arrangement assemblies, and the first frame is provided with a first adjusting assembly for adjusting the movable arrangement assemblies to be far away from or close to the fixed arrangement assemblies.

3. The bottom pasting machine according to claim 1, wherein: the oblique indentation mechanism comprises a left indentation assembly and a right indentation assembly; the left indentation assembly and the right indentation assembly comprise oblique indentation knives and oblique indentation cushion blocks linked with the oblique indentation knives; the left indentation component and the right indentation component are respectively driven by the left driving gear set and the right driving gear set, and the indentation differential component comprises a mandrel, a first differential gear rotatably arranged on the mandrel, a handle rotatably arranged on the mandrel and a second differential gear fixedly arranged on the mandrel; the handle is provided with a planetary gear meshed with the first differential gear and the second differential gear; the mandrel is provided with an output gear; the telescopic pins are arranged on the handle, the second rack is provided with a fixed cover, and the fixed cover is provided with a plurality of pin holes which are uniformly arranged on the circumference and are used for being matched with the pins; the left driving gear is meshed with the output gear, and the right driving gear is meshed with the first differential gear; the feeding differential assembly and the indentation differential assembly have the same structure.

4. The bottom pasting machine according to claim 1, wherein: the cutter differential assembly comprises a first angle adjusting assembly arranged between a first driving gear and a second driving gear, and a second angle adjusting assembly arranged between the second driving gear and a third driving gear.

5. The bottom pasting machine according to claim 1, wherein: the opening assembly comprises a box body arranged on a third rack, a main gear capable of rotating around the axis of the box body is arranged in the box body, a combined fork rotating along with the main gear is embedded in the main gear, universal joint forks rotatably arranged on the box body are connected to two sides of the combined fork through cross shafts, and one end of each universal joint fork, which is opposite to each cross shaft, is connected with a shifting pipe which is inserted into the bottom of a sucked paper bag through rotation and continuously expands the bottom of the paper bag; the opening component is also provided with a time delay mechanism and an externally connected first driving shaft, and a gear set for transmission is arranged between the time delay mechanism and the main gear; and a positioning flange ring is arranged on the third rack, a worm wheel and worm assembly is arranged in the positioning flange ring, a radial sliding groove is formed in the worm wheel, and a sliding block which is embedded in the sliding groove and slides relative to the sliding groove is sleeved outside the rotating shaft.

6. The bottom pasting machine according to claim 1, wherein: the fourth frame is provided with a main driving shaft; the paster speed change component comprises a shell, wherein an input bevel gear, an output bevel gear, a gear carrier and a planetary gear are arranged in the shell; the gear rack is rotatably arranged in the shell, the number of the planetary gears is two, the two planetary gears are rotatably arranged on the gear rack, and the planetary gears are positioned between the input bevel gear and the output bevel gear and are meshed with the input bevel gear and the output bevel gear;

the paper pasting machine is characterized in that a gear rack is fixed with a worm wheel, a shell penetrates through a worm matched with the worm wheel, the worm is connected with an adjusting hand wheel, an output bevel gear D95 and a main driving gear D15 are coaxially arranged and are driven by a transmission shaft, and the main driving shaft drives a valve opening gluing mechanism, a composite paper roll mechanism, a traction cutter mechanism, a folding roller mechanism and a paper pasting cylinder mechanism to operate through a main driving gear D15 of a paper pasting speed change assembly.

7. The bottom pasting machine according to claim 1, wherein: the fourth rack is provided with a rejection mechanism, and the rejection mechanism comprises a main rejection conveying rail and an auxiliary rejection conveying rail which are arranged on the fourth rack; the main rejection conveying rail is provided with a main rejection belt, the auxiliary rejection conveying rail is provided with an auxiliary rejection belt, one end of the main rejection belt is sleeved on the folding roller body, the rejection mechanism further comprises a rejection needle arranged on the folding roller body, and a first switching assembly arranged at the end part of the folding roller body and used for driving the rejection needle to radially extend out.

8. The bottom pasting machine according to claim 1, wherein: the traction cutter mechanism comprises a mounting seat, the fourth rack is provided with a guide rail arranged along the conveying direction of the paper bag, the mounting seat is slidably arranged on the guide rail, and the mounting seat is provided with a walking assembly;

9. The bottom pasting machine according to claim 8, wherein: the cutting assembly comprises a movable cutter assembly and a fixed cutter assembly, the movable cutter assembly comprises a movable cutter shaft body, the movable cutter shaft body is provided with a movable cutter extending axially, a cutting edge of the movable cutter extends out of the movable cutter shaft body, a driving conjugate gear driven by a main transmission shaft is arranged on the fourth rack, the movable cutter shaft body is provided with a driven conjugate gear, the driving conjugate gear and the driven conjugate gear are meshed with each other, and the part of the driven conjugate gear close to the rotation center corresponds to the movable cutter.

10. The bottom pasting machine according to claim 1, wherein: the turning conveying mechanism comprises a front conveying piece positioned at one end, close to the vertical conveying mechanism, of the seventh rack and an active conveying piece positioned at the other end of the seventh rack, wherein the height of the active conveying piece is higher than that of the front conveying piece, and a guide belt is sleeved between the active conveying piece and the front conveying piece; the front conveying pieces are arranged obliquely to the conveying direction of the paper bags, and the transverse distance between every two adjacent front conveying pieces is smaller than that between every two adjacent active conveying pieces; the upper guide rod and the lower guide rod are both positioned on the conveying path of the paper bag and are obliquely arranged towards one side of the guide conveying mechanism.