CN221520123U - Roll toilet paper middle bag packaging equipment - Google Patents

Abstract

The utility model discloses roll toilet paper medium bag packaging equipment, which comprises a packaging table; and (3) a packaging table: the packaging device comprises two packaging tables, wherein a base table is arranged between the two packaging tables, a limiting seat is arranged on the upper surface of each packaging table, a connecting seat is arranged on one side, close to the center of the base table, of each limiting seat through an electric push rod I, a clamping seat is arranged on one side, close to the center of the base table, of each connecting seat through uniformly distributed telescopic columns I, a rotating frame is arranged between the upper sides of the packaging tables, a rotating shell is arranged on the top wall of each rotating frame through an electric push rod II, a rotating shaft is rotatably connected to the bottom wall of each rotating shell through a bearing, a rotating seat is arranged at the lower end of each rotating shaft, a sliding seat is slidably connected to a sliding groove formed in the lower side of each rotating seat, and a bag pressing seat is arranged on the lower side of each sliding seat; the roll toilet paper middle bag packaging equipment is capable of packaging and winding middle bag films through elastic clamping and elastic extrusion, so that the roll toilet paper middle bag packaging equipment can be used for packaging and operating the roll toilet paper middle bags with different sizes, and is wide in application range.

Description

Roll toilet paper middle bag packaging equipment

Technical Field

The utility model relates to the technical field of roll toilet paper processing, in particular to roll toilet paper medium bag packaging equipment.

Background

The toilet paper is mainly used for daily sanitary of people, is one of indispensable paper types, is used for softening the toilet paper, and is characterized in that the paper is wrinkled and increased in softness by a mechanical method, the raw materials for manufacturing the toilet paper are various, natural pollution-free raw materials such as cotton pulp, wood pulp and bamboo pulp are commonly used, the toilet paper roll is formed by continuously winding strip-shaped toilet paper on a winding shaft blank made of hard paper board to form a paper cylinder and finally loosely wrapping a layer of plastic film outside the paper cylinder, the toilet paper roll is subjected to medium bag film winding and packaging operation through packaging equipment, when part of the medium bag packaging equipment of the toilet paper roll is used, the inner ring of the toilet paper roll is horizontally sleeved on a rotating shaft, then the clamping mechanism is used for clamping and fixing two ends of the toilet paper roll through a control element, at the moment, the lower end of the outer side of the toilet paper roll is contacted with a medium bag film on a workbench, then the medium bag film is driven to package and wind the toilet paper roll through the rotating winding element, and then the medium bag film winding part of the toilet paper roll is subjected to hot melting through heating, so that the medium bag packaging operation is performed on the medium bag winding part of the toilet paper roll, however, the medium bag packaging operation can only be performed on the same size as the rotating shaft, and the size of the medium bag packaging device can be used in a single device.

Disclosure of utility model

The utility model aims to overcome the existing defects, and provides the roll toilet paper middle bag packaging equipment, which can perform middle bag packaging operation on roll toilet paper with different sizes by elastically clamping and elastically extruding middle bag film packaging winding, has a wide application range and can effectively solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a roll toilet paper bag-in-bag packaging device comprises a packaging table;

And (3) a packaging table: the packaging device comprises two packaging tables, wherein a base table is arranged between the two packaging tables, a limiting seat is arranged on the upper surface of each packaging table, a connecting seat is arranged on one side, close to the center of the base table, of each limiting seat through an electric push rod I, a clamping seat is arranged on one side, close to the center of the base table, of each connecting seat through uniformly distributed telescopic columns I, a rotating frame is arranged between the upper sides of the packaging tables, a rotating shell is arranged on the top wall of each rotating frame through an electric push rod II, a rotating shaft is rotatably connected to the bottom wall of each rotating shell through a bearing, a rotating seat is arranged at the lower end of each rotating shaft, a sliding seat is slidably connected to a sliding groove formed in the lower side of each rotating seat, and a bag pressing seat is arranged on the lower side of each sliding seat;

Wherein: the device is characterized by further comprising a singlechip, wherein the singlechip is positioned outside the packaging table, the input end of the singlechip is electrically connected with an external power supply, the output end of the singlechip is electrically connected with the input ends of the first electric push rod and the second electric push rod respectively, and the device is packaged and wound by the elastic clamping and elastic extrusion middle bag film, so that the device can perform middle bag packaging operation on roll toilet paper with different sizes, and the application range is wide.

Further, the first springs which are uniformly distributed are arranged between the connecting seat and the adjacent clamping seat, and the first springs are movably sleeved with the outer ends of the adjacent first telescopic columns to elastically clamp the toilet roll.

Further, evenly distributed cross semicircle grooves are formed in the inner cambered surfaces of the clamping seats, rotating balls are rotationally connected in the cross semicircle grooves, and contact friction force between the clamping seats and the roll toilet paper and the middle bag film is reduced.

Further, the upside of roating seat is equipped with the fixing base, is equipped with flexible post two and spring two between fixing base and the slide, and the outer end activity of spring two and flexible post two cup joints for press the bag seat to carry out well bag membrane winding to the roll toilet paper of multiple bore through the spring force and press the bag operation.

Further, the upper end of the rotating shaft is provided with a worm wheel, the left wall of the rotating shell is connected with a worm through a bearing in a rotating way, the worm is meshed with the worm wheel, the left side of the rotating shell is provided with a first motor, the input end of the first motor is electrically connected with the output end of the single chip microcomputer, the output shaft of the first motor is fixedly connected with the worm, and power is provided for the bag film in the rotating winding of the roll toilet paper.

Further, the lower surface of roating seat is equipped with the rubber pad, and the roating seat of being convenient for drives the roll toilet paper and rotates.

Further, still include the hot melt seat, the hot melt seat sets up in the upper surface of the encapsulation platform of front side, and the rear side of hot melt seat is equipped with the hot plate through electric putter III, and electric putter III and the input of hot plate all are connected with the output electricity of singlechip, carry out the operation of well bag membrane hot melt encapsulation to roll toilet paper.

Further, still include motor two, motor two sets up in the downside of the encapsulation platform of front side, and motor two's input is connected with the output electricity of singlechip, and the upper surface of the encapsulation platform of front side is connected with evenly distributed's the bag axle that send through the bearing rotation, and motor two's output shaft and left bag axle fixed connection that send, the upper end of bag axle all is equipped with the bag roller that send, and the upper surface of the encapsulation platform of front side is equipped with the guide holder, and the guide holder is installed with bag roller and bag pressing seat cooperation, carries out the medium bag membrane direction to the encapsulation of roll toilet paper medium bag and carries.

Compared with the prior art, the utility model has the beneficial effects that: the roll toilet paper medium bag packaging equipment has the following advantages:

The single chip microcomputer starts the electric push rod I to enable the telescopic end of the electric push rod I to indirectly drive the clamping seat to move through the connecting seat near one end of the center of the device, so that packaging and limiting can be carried out on the roll toilet paper, in the process, the outer cambered surface of the roll toilet paper transversely moves towards the clamping middle part of the roll toilet paper along the inner cambered surface of the clamping seat, the outer right end of the roll toilet paper extrudes the initial end of the middle bag film to the inner cambered surface of the bag pressing seat, the telescopic end of the telescopic column I and the spring I shrink to enable the roll toilet paper to be subjected to packaging and elastic limiting, the telescopic end of the telescopic column II and the spring II stretch to enable the initial end of the middle bag film to be elastically extruded to the outer side of the roll toilet paper, the bag pressing seat can be used for packaging and film pressing operation on roll toilet paper with various calibers through the spring II, when the roll toilet paper is subjected to middle bag film winding operation, the rubber pad is used for increasing contact friction force, the rotary seat is convenient for driving the roll toilet paper to wind, the bag film in the roll toilet paper is driven to rotate through the rubber pad, the stretching elastic force of the initial end of the middle bag film is adhered to the roll toilet paper, and the outer cambered surface of the roll toilet paper is synchronously rotated by proper angle through the stretching elasticity of the elastic force of the telescopic column II, the telescopic column II is self-adaptively moved, and the telescopic column II is self-adaptively moved by the telescopic column II, and the telescopic column is stretched by the telescopic column II and the telescopic column, and the telescopic bag is stretched and the telescopic bag, and the second.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the left side bottom view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of the present utility model at A;

fig. 4 is an enlarged schematic view of the structure of the present utility model at B.

In the figure: the packaging machine comprises a packaging table 1, a singlechip 2, a limiting seat 3, an electric push rod 4, a connecting seat 5, a telescopic column 6, a spring 7, a clamping seat 8, a rotating ball 9, a base table 10, a rotating frame 11, an electric push rod 12, a rotating shell 13, a rotating shaft 14, a rotating seat 15, a sliding seat 16, a telescopic column 17, a spring 18, a bag pressing seat 19, a worm wheel 20, a motor 21, a worm 22, a rubber pad 23, a hot melt seat 24, an electric push rod 25, a heating plate 26, a bag conveying shaft 27, a bag conveying roller 28, a motor 29 and a guide seat 30.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present embodiment provides a technical solution: a roll toilet paper bag-in-bag packaging device comprises a packaging table 1;

Packaging table 1: the two packaging tables 1 are provided with a bottom table 10, the upper surface of the packaging table 1 is provided with a limiting seat 3, one side of the limiting seat 3, which is close to the center of the bottom table 10, is provided with a connecting seat 5 through an electric push rod I4, one side of the connecting seat 5, which is close to the center of the bottom table 10, is provided with a clamping seat 8 through a telescopic column I6 which is uniformly distributed, a rotating frame 11 is arranged between the upper sides of the packaging tables 1, the top wall of the rotating frame 11 is provided with a rotating shell 13 through an electric push rod II 12, the bottom wall of the rotating shell 13 is rotatably connected with a rotating shaft 14 through a bearing, the lower end of the rotating shaft 14 is provided with a rotating seat 15, a sliding seat 16 is connected in a sliding groove formed in the lower side of the rotating seat 15, The lower side of the sliding seat 16 is provided with a bag pressing seat 19, uniformly distributed springs I7 are arranged between the connecting seat 5 and the adjacent clamping seat 8, the springs I7 are movably sleeved with the outer ends of the adjacent telescopic posts I6, the upper side of the rotating seat 15 is provided with a fixed seat, a telescopic post II 17 and a spring II 18 are arranged between the fixed seat and the sliding seat 16, the spring II 18 is movably sleeved with the outer ends of the telescopic posts II 17, the upper end of the rotating shaft 14 is provided with a worm wheel 20, the left wall of the rotating shell 13 is rotatably connected with a worm 22 through a bearing, the worm 22 is meshed with the worm wheel 20, the left side of the rotating shell 13 is provided with a motor I21, the input end of the motor I21 is electrically connected with the output end of the singlechip 2, The output shaft of the motor I21 is fixedly connected with the worm 22, the lower surface of the rotating seat 15 is provided with a rubber pad 23, the inner cambered surfaces of the clamping seat 8 are provided with evenly distributed semicircular grooves, the inner parts of the semicircular grooves are rotationally connected with rotating balls 9 and also comprise hot melting seats 24, when the device is used for packaging the medium-sized bags of the roll toilet paper, the device is firstly placed on a finished product production line of the roll toilet paper, the bottom surface of the bottom table 10 is flush with the upper surface of a production line conveyor belt, then the initial end of the wound medium-sized bag film passes through a space between two bag conveying rollers 28 and passes through a guide groove on the guide seat 30, then the singlechip 2 starts the motor II 29 to drive the bag conveying rollers 28 to rotate through the bag conveying shafts 27, The bag feeding roller 28 conveys the initial end of the middle bag film to the left rear end of the bag pressing seat 19 through contact friction force, the roll toilet paper moves to the upper surface of the bottom table 10 through the friction force of a conveyor belt of a production line, then the singlechip 2 starts the electric push rod I4 to enable the telescopic end of the electric push rod I to indirectly drive one end, close to the center of the device, of the clamping seat 8 to move through the connecting seat 5, so that the roll toilet paper is packaged and limited, in the process, the outer cambered surface of the roll toilet paper transversely moves along the inner cambered surface of the clamping seat 8 towards the clamping middle part of the roll toilet paper, the outer right end of the roll toilet paper extrudes the initial end of the middle bag film to the inner cambered surface of the bag pressing seat 19, the telescopic end of the telescopic column I6 and the spring I7 shrink to perform packaging elastic limiting on the roll toilet paper, The initial end of the middle bag film is elastically extruded to the outer side surface of the roll toilet paper by stretching the telescopic end of the telescopic column II 17 and the spring II 18, the bag pressing seat 19 can perform middle bag packaging film pressing operation on the roll toilet paper with various calibers by the spring II 18, then the singlechip 2 starts the electric push rod II 12 to indirectly drive the rotary seat 15 to vertically move downwards through the rotary shell 13 and to be in extrusion contact with the upper surface of the roll toilet paper, then the singlechip 2 starts the motor I21 to drive the output shaft of the motor I to drive the worm 22 to rotate, the worm 22 is connected in a meshed manner to drive the rotary seat 15 to reversely rotate the roll toilet paper by friction force through the rotary shaft 14 by a proper angle, after the roll toilet paper is wound for one circle on the middle bag film, the outer cambered surface of the bag pressing seat 19 is not contacted with the wound middle bag film positioned at the guide seat 30, so that the interference caused by hot melting packaging of the bag film in the subsequent roll toilet paper is prevented, the contact friction force is increased through the rubber pad 23, the rotary seat 15 is convenient for driving the roll toilet paper to wind and rotate the bag film in the roll toilet paper, in the process, the singlechip 2 starts the motor II 29 to package and convey the roll toilet paper on the middle bag film through the bag feeding roller 28, the bag pressing seat 19 drives the initial end of the middle bag film to be attached to the outer cambered surface of the roll toilet paper to synchronously reversely rotate and wind for a proper angle through the stretching elastic force of the spring II 18, in the process, the rotary ball 9 and the semicircular groove self-adaptive rotary movement are realized, the contact friction force between the clamping seat 8 and the roll toilet paper and the contact friction force between the middle bag film are reduced, the initial end part of the middle bag film is overlapped with the middle bag film at the rear end of the guide seat 30, and the roll toilet paper middle bag packaging equipment can package and wind the middle bag film through elastic clamping and elastic extrusion, so that the device can perform middle bag packaging operation on roll toilet paper with different sizes, and the application range is wide;

Wherein: the packaging table also comprises a singlechip 2, wherein the singlechip 2 is positioned outside the packaging table 1, the input end of the singlechip 2 is electrically connected with an external power supply, the output end of the singlechip 2 is respectively electrically connected with the input ends of the electric push rod I4 and the electric push rod II 12, and the control of electric elements is convenient;

Wherein, the hot melting seat 24 is arranged on the upper surface of the front packaging table 1, the rear side of the hot melting seat 24 is provided with a heating plate 26 through a third electric push rod 25, the input ends of the third electric push rod 25 and the heating plate 26 are electrically connected with the output end of the single chip microcomputer 2, the hot melting seat also comprises a second motor 29, the second motor 29 is arranged on the lower side of the front packaging table 1, the input end of the second motor 29 is electrically connected with the output end of the single chip microcomputer 2, the upper surface of the front packaging table 1 is rotationally connected with a bag feeding shaft 27 which is uniformly distributed through a bearing, the output shaft of the second motor 29 is fixedly connected with the left bag feeding shaft 27, the upper ends of the bag feeding shafts 27 are provided with bag feeding rollers 28, the upper surface of the front packaging table 1 is provided with a guide seat 30, after the bag film in the roll toilet paper is wound, the singlechip 2 starts the heating plate 26 to heat and raise the temperature, the singlechip 2 starts the electric push rod III 25 to drive the heating plate 26 to carry out hot melt adhesive cutting on the overlapped part of the middle bag packaging of the roll toilet paper by the telescopic end, so that the assembly line type middle bag packaging of the roll toilet paper is realized, and then the electric elements in the device are reset through the control of the singlechip 2, and the roll toilet paper needing the next middle bag packaging is ejected out by the contact friction force on a production line, so that the middle bag film is conveyed and hot melt cutting is carried out on the middle bag packaging of the roll toilet paper.

The working principle of the roll toilet paper bag-in-bag packaging equipment provided by the utility model is as follows: when the device is used for packaging the medium bags of the roll toilet paper, firstly, the device is placed on a finished product production line of the roll toilet paper, so that the bottom surface of the base table 10 is flush with the upper surface of a conveying belt of the production line, then the initial end of a wound medium bag film passes through a space between two bag conveying rollers 28 and passes through a guide groove on a guide seat 30, then a singlechip 2 starts a motor II 29 to drive the bag conveying rollers 28 to rotate through a bag conveying shaft 27, the bag conveying rollers 28 convey the initial end of the medium bag film to the left rear end of a bag pressing seat 19 through contact friction force, the roll toilet paper moves to the upper surface of the base table 10 through the friction force of the conveying belt of the production line, Then the singlechip 2 starts the electric push rod I4 to enable the telescopic end of the electric push rod I to indirectly drive one end of the clamping seat 8, which is close to the center of the device, to move through the connecting seat 5 so as to encapsulate and limit the roll toilet paper, in the process, the outer cambered surface of the roll toilet paper transversely moves towards the clamping middle part of the roll toilet paper along the inner cambered surface of the clamping seat 8, the outer right end of the roll toilet paper extrudes the initial end of the middle bag film to the inner cambered surface of the bag pressing seat 19, the telescopic end of the telescopic column I6 and the spring I7 shrink so as to encapsulate and limit the roll toilet paper, the telescopic end of the telescopic column II 17 and the spring II 18 stretch so as to elastically extrude the initial end of the middle bag film to the outer side surface of the roll toilet paper, The bag pressing seat 19 can perform medium bag packaging and film pressing operation on roll toilet paper with various calibers through the second spring 18, then the singlechip 2 starts the second electric push rod 12 to enable the telescopic end of the second electric push rod to indirectly drive the rotary seat 15 to move vertically downwards through the rotary shell 13 and to be in extrusion contact with the upper surface of the roll toilet paper, then the singlechip 2 starts the first motor 21 to enable the output shaft of the first electric push rod to drive the worm 22 to rotate, the worm 22 is in meshed connection to enable the worm wheel 20 to enable the rotary seat 15 to drive the roll toilet paper to reversely rotate by a proper angle through the rotary shaft 14 through friction force, after the roll toilet paper is wound for one circle with the medium bag film, the outer cambered surface of the bag pressing seat 19 is not in contact with the wound medium bag film positioned at the guide seat 30, The interference caused by the hot melting packaging of the bag film in the subsequent roll toilet paper is prevented, the contact friction force is increased through the rubber pad 23, the rotary seat 15 is convenient for driving the roll toilet paper to wind and rotate the bag film in the roll toilet paper, in the process, the singlechip 2 starts the motor II 29 to package and convey the roll toilet paper to the bag film through the bag feeding roller 28, the bag pressing seat 19 drives the initial end of the bag film to be attached to the outer cambered surface of the roll toilet paper through the stretching elastic force of the spring II 18 to synchronously and reversely rotate and wind for a proper angle, in the process, the rotary ball 9 and the semicircular groove self-adaptive rotary movement reduce the contact friction force of the clamping seat 8 and the roll toilet paper as well as the bag film, at the moment, the initial end part of the bag film overlaps the bag film at the rear end of the guide seat 30, Then the singlechip 2 starts the heating plate 26 to heat, the singlechip 2 starts the electric push rod III 25 to drive the heating plate 26 to carry out hot melt adhesive cutting on the overlapped part of the middle bag packaging of the roll toilet paper by the telescopic end of the electric push rod III, thereby realizing the assembly line type middle bag packaging of the roll toilet paper, then resetting the electric elements in the device by the control of the singlechip 2, and ejecting the roll toilet paper which needs to be packaged by the next middle bag by the contact friction force on the assembly line.

It should be noted that, in the above embodiment, the single chip microcomputer 2 may employ COP8CBE9, the electric push rod one 4, the electric push rod two 12 and the electric push rod three 25 may employ DTZ630, the electric motor one 21 and the electric motor two 29 may employ 130SZ01, the heating plate 26 may employ MCH ceramic heating plate, and the single chip microcomputer 2 controls the electric push rod one 4, the electric push rod two 12, the electric motor one 21, the heating plate 26, the electric motor two 29 and the electric push rod three 25 to operate by methods commonly used in the prior art.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (8)

1. A roll toilet paper bag-in-bag packaging apparatus, characterized in that: comprises a packaging table (1);

Packaging table (1): the packaging structure comprises two packaging tables (1), wherein a base table (10) is arranged between the packaging tables (1), limiting seats (3) are arranged on the upper surfaces of the packaging tables (1), connecting seats (5) are arranged on one sides, close to the centers of the base tables (10), of the limiting seats (3) through electric push rods I (4), clamping seats (8) are arranged on one sides, close to the centers of the base tables (10), of the connecting seats (5) through uniformly distributed telescopic posts I (6), a rotating frame (11) is arranged between the upper sides of the packaging tables (1), a rotating shell (13) is arranged on the top wall of the rotating frame (11) through electric push rods II (12), a rotating shaft (14) is connected to the bottom wall of the rotating shell (13) through bearing rotation, a rotating seat (15) is arranged at the lower end of the rotating shaft (14), sliding seats (16) are connected in sliding grooves formed in the lower sides of the rotating seat (15), and pressing seats (19) are arranged on the lower sides of the sliding seats (16).

Wherein: the packaging machine further comprises a single chip microcomputer (2), the single chip microcomputer (2) is located outside the packaging table (1), the input end of the single chip microcomputer (2) is electrically connected with an external power supply, and the output end of the single chip microcomputer (2) is electrically connected with the input ends of the first electric push rod (4) and the second electric push rod (12) respectively.

2. A roll toilet paper bag-in-package apparatus as claimed in claim 1, wherein: the connecting seat (5) and the adjacent clamping seat (8) are respectively provided with a first spring (7) which is uniformly distributed, and the first springs (7) are movably sleeved with the outer ends of the adjacent first telescopic columns (6).

3. A roll toilet paper bag-in-package apparatus as claimed in claim 1, wherein: the inner cambered surfaces of the clamping seats (8) are respectively provided with uniformly distributed semicircular grooves, and rotating balls (9) are respectively and rotatably connected to the inner parts of the semicircular grooves.

4. A roll toilet paper bag-in-package apparatus as claimed in claim 1, wherein: the upper side of the rotating seat (15) is provided with a fixed seat, a second telescopic column (17) and a second spring (18) are arranged between the fixed seat and the sliding seat (16), and the second spring (18) is movably sleeved with the outer end of the second telescopic column (17).

5. A roll toilet paper bag-in-package apparatus as claimed in claim 1, wherein: the upper end of pivot (14) is equipped with worm wheel (20), and the left wall of rotatory shell (13) is connected with worm (22) through the bearing rotation, and worm (22) are connected with worm wheel (20) meshing, and the left side of rotatory shell (13) is equipped with motor one (21), and the input of motor one (21) is connected with the output electricity of singlechip (2), and the output shaft and worm (22) fixed connection of motor one (21).

6. A roll toilet paper bag-in-package apparatus as claimed in claim 1, wherein: the lower surface of the rotating seat (15) is provided with a rubber pad (23).

7. A roll toilet paper bag-in-package apparatus as claimed in claim 1, wherein: still include hot melt seat (24), hot melt seat (24) set up in the upper surface of the encapsulation platform (1) of front side, and the rear side of hot melt seat (24) is equipped with hot plate (26) through electric putter third (25), and electric putter third (25) and the input of hot plate (26) all are connected with the output electricity of singlechip (2).

8. A roll toilet paper bag-in-package apparatus as claimed in claim 1, wherein: still include motor two (29), motor two (29) set up in the downside of the encapsulation platform (1) of front side, the input of motor two (29) is connected with the output electricity of singlechip (2), the upper surface of the encapsulation platform (1) of front side is connected with evenly distributed's bag axle (27) that send through the bearing rotation, the output shaft of motor two (29) and bag axle (27) fixed connection that send of left side, the upper end that send bag axle (27) all is equipped with bag roller (28), the upper surface of the encapsulation platform (1) of front side is equipped with guide holder (30), guide holder (30) and bag roller (28) and bag pressing seat (19) cooperation installation.