CN115230241B

CN115230241B - Three-edge sealing bag making machine with edge sealing and folding functions

Info

Publication number: CN115230241B
Application number: CN202210919064.6A
Authority: CN
Inventors: 耿进辉; 酒国利
Original assignee: Hebei Yuhong Packing Decoration Co ltd
Current assignee: Hebei Yuhong Packing Decoration Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2023-04-07
Anticipated expiration: 2042-08-02
Also published as: CN115230241A

Abstract

The invention provides a three-edge sealing bag making machine with a sealing and folding function, and relates to the technical field of three-edge sealing bag making machines. By arranging the edge folding mechanism, the bag making film is prevented from shifting front and back in the process of bending the edges of the bag making film by four rubber rollers, so that two edges at the rear part of the bag making film cannot be contacted; by arranging the cooling mechanism, the bag making film subjected to longitudinal heat sealing is prevented from being deformed in the process of rightward transmission due to high temperature, so that the made bag is prevented from being deformed; shear the mechanism and utilize two static boards to adsorb vertical heat-seal's system bag membrane through setting up the expansion, avoided on system bag membrane can not insert two expansion boards, cause this device can not normal use, reduce the generation efficiency to the sack.

Description

Three-edge sealing bag making machine with edge sealing and folding functions

Technical Field

The invention relates to the technical field of three-edge sealing bag making machines, in particular to a three-edge sealing bag making machine with a sealing and folding function.

Background

The three-edge sealing bag making machine controls the whole device to continuously make bags through the PLC microcomputer, can control and adjust the tension between bag making films through the PLC microcomputer, and meanwhile adjusts the heat sealing temperature of the heat sealing knife according to the materials of the bag making films, so that the three-edge sealing bag making machine is suitable for bag making films of different materials, but the demand for different types of bags is continuously increased along with the high-speed development of various industries.

To some bags for production and packaging, a containing space is needed for placing products, an interlayer is needed in the middle of the bag, for example, the packages of shampoo, conditioner, facial cleanser, skin care products and the like are needed, the interlayer is needed to be arranged in the middle of the bag for placing two different products, meanwhile, the interlayer in the middle of the bag enables the two products not to turn over in the bag, but the edge of the bag can only be subjected to heat sealing by the existing bag making machine, only one space exists in the made bag, and the requirement that different products are placed in the two spaces in the bag cannot be met.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a deformation-preventing three-edge sealing bag machine with a sealing and folding function.

In order to achieve the purpose, the invention is realized by the following technical scheme: a three-side-sealing bag making machine with edge sealing and folding functions comprises a first support frame, a triangular folding frame for folding a bag making film is fixedly connected to the first support frame, two first electric rollers are rotatably connected to the lower portion of the first support frame, the two first electric rollers are located on the lower side of the triangular folding frame, the two first electric rollers are used for drawing the folded bag making film downwards, two first extrusion rollers are rotatably connected to the front portion of the first support frame, the two first extrusion rollers are located on the right sides of the two first electric rollers, the two first extrusion rollers are used for extruding and shaping the folded bag making film, a second support frame is arranged on the right side of the first support frame, a control panel is fixedly connected to the right portion of the upper side of the second support frame through a mounting seat, the left portion of the upper side of the second support frame rotates two second electric rollers through a mounting seat, the two second electric rollers are respectively electrically connected to the control panel, the upper side of the second support frame is rotatably connected to a guide roller through a mounting seat, a heat sealing mechanism is arranged on the upper side of the second electric rollers, a heat sealing mechanism, and a heat sealing mechanism are arranged on the upper side of the second support frame, the heat sealing mechanism is arranged on the upper side of the second support frame and the heat sealing mechanism, the cooling mechanism is located between the transverse heat sealing device and the third electric roller, the cooling mechanism is used for cooling the bag making film after heat sealing, the upper side face of the second support frame is provided with the expansion shearing mechanism, the expansion shearing mechanism is located on the right side of the third electric roller, the expansion shearing mechanism is used for inwards folding two sides of the bag making film, the right part of the upper side face of the second support frame is provided with the diaphragm heat sealing mechanism, the diaphragm heat sealing mechanism is used for thermally sealing a vertical diaphragm in the middle of the bag making film, the diaphragm heat sealing mechanism is matched with the expansion shearing mechanism to produce a bag with a middle diaphragm, and the cooling mechanism, the expansion shearing mechanism and the diaphragm heat sealing mechanism are electrically connected with the control panel.

Further, hem mechanism is including first fixed plate, first fixed plate rigid coupling is in the left part of second support frame, the spout has been seted up at the middle part of first fixed plate, sliding connection has the slip post in the spout of first fixed plate, the lower part of slip post has through threaded connection and is used for extrudeing spacing rotating sleeve, the side rigid coupling that goes up of slip post has first backup pad, the anterior rigid coupling of side has two fixed columns on the first backup pad, the equal rigid coupling of side that goes up of fixed column has and is used for spacing plectane, sliding connection has first sliding plate on two fixed columns, first sliding plate and first backup pad longitudinal symmetry, the equal ring cover of lateral surface of two fixed columns has the spring, the both ends of two springs rigid couplings are respectively in first sliding plate and adjacent fixed column, the left part rigid coupling of side on the second support frame has the second backup pad, the second backup pad is located the top of first sliding plate, rectangular through-hole has been seted up to the rear side of second backup pad, sliding connection has the second sliding plate in the rectangular through-hole of second backup pad, the upside threaded connection has the second sliding sleeve that is used for extrudeing spacing rotation from left side of second sliding plate equidistant rotation is connected with the different rubber rolls of a plurality of inclination angle of turning right, a plurality of rubber bag edge roller pair of bag system.

Further, the cooling mechanism is including hollow roller, hollow roller is equipped with two altogether, two hollow rollers rotate through the mount pad and connect in the up side of second support frame, two front and back portions of two hollow rollers all have the three-way pipe through rotating the cover intercommunication, two hollow rollers rotate with two three-way pipes respectively and are connected, the water tank is installed to the lower part of second support frame, install the suction pump in the water tank, suction pump and control panel electrical connection in the water tank, the lower extreme of two three-way pipes passes the water tank respectively, the three-way pipe of front side and the water pump intercommunication in the water tank, the rear portion of second support frame downside has first servo motor through the mount pad rigid coupling, first servo motor and control panel electrical connection, the output shaft of first servo motor passes through belt and band pulley transmission with two hollow rollers, the rigid coupling has the square shell on the second support frame, the square shell is located the downside of two hollow rollers, the square shell internal rotation is connected with the sponge roller, sponge roller and two hollow roller lateral surface extrusion contact, the sponge roller and square shell medial surface contact, the downside intercommunication of ventilation pipe has the air-blower, air-blower and control panel electrical connection.

Further, the expansion shearing mechanism comprises two static plates, the static plates are provided with two static plates, the two static plates are fixedly connected to the upper side face of the second support frame through mounting plates, the two static plates are arranged to be inclined in a splayed shape, the two static plates are electrically connected with the control panel, electric sliding rails are fixedly connected to the front portion and the rear portion of the right side face of the mounting plates of the two static plates, the two electric sliding rails are electrically connected with the control panel, two electric sliding rails are connected to the two electric sliding rails in a sliding mode, cutting blades used for cutting bag making films are fixedly connected between the front adjacent electric sliding blocks and the rear adjacent electric sliding blocks, first heat sealing knives are fixedly connected to the right side faces of the two cutting blades, the two first heat sealing knives are electrically connected with the control panel, the two first heat sealing knives are used for longitudinally heat sealing the bag making films, expansion positioning assemblies are arranged on the right portions of the two first heat sealing knives and used for outwards expanding the bag making films, inward folding assemblies are arranged on the expansion positioning assemblies, and the inward folding assemblies are used for inwards sinking the front sides and the rear sides of the bag making films.

Further, the expansion positioning component comprises two L-shaped fixed plates, the two L-shaped fixed plates are respectively fixedly connected to the front and back sides of the upper side of the second support frame, two L-shaped fixed plates are respectively and rotatably connected with a rotating rod, the inner ends of the two rotating rods are fixedly connected with expansion plates, the outer ends of the two rotating rods are arranged to form spline rods, two rotating rods are fixedly connected with first gears, the upper sides of the two L-shaped fixed plates are respectively and fixedly connected with second servo motors through mounting seats, the two second servo motors are electrically connected with a control panel, the output shafts of the two second servo motors are respectively and fixedly connected with second gears, the two second gears are respectively and rotatably connected with adjacent first gears to be used for adjacent driving rotating rods, the inner sides of the two expansion plates are respectively and fixedly connected with first electric transmission belts used for transmitting vertical diaphragms to the left side, the two first electric transmission belts are electrically connected with the control panel, the upper side of the second support frame is rotatably connected with first friction rollers through the mounting seats, the upper side of the first friction rollers are matched with the lower side of the second friction rollers, and the rear side of the second servo motors are connected with the lower side of the second friction rollers through the third friction rollers, and the rear side of the second friction rollers.

Furthermore, the outer side surfaces of the first friction roller and the second friction roller are sleeved with rubber sheets for increasing friction force in a surrounding mode.

Further, two expansion plates widen gradually from a left side to a right side, the upper and lower parts of the two expansion plates gradually change with smooth arcs to the right side, and the left parts of the two expansion plates are all provided with gaps for bending the bag making films inwards.

Further, the infolding subassembly is including the sliding sleeve, the sliding sleeve is equipped with two altogether, two sliding sleeves are respectively through splined connection's mode sliding connection on two dwang, the left part rigid coupling of two sliding sleeve lateral surfaces has the bracing piece, the left end of two bracing pieces all rotates and is connected with the rotation wheel, two thickness of rotating the wheel are less than adjacent expansion plate left part opening width, the equal sliding connection of outer anchor ring of two sliding sleeves has the link, the last side of two L shape fixed plates all has first pneumatic push rod through the equal rigid coupling of mount pad, two first pneumatic push rods all with control panel electrical connection, two first pneumatic push rod's telescopic link respectively with adjacent link rigid coupling.

Further, diaphragm heat-seal mechanism is including the second fixed plate, the right part of second fixed plate rigid coupling side on the second support frame, the side rigid coupling of going up of second support frame has two electronic transmission bands of second, two electronic transmission bands of second all with control panel electrical connection, the medial surface contact cooperation of two electronic transmission bands of second, the left part rigid coupling of two electronic transmission bands of second has the electric cutter that is used for cuting the diaphragm, electric cutter and control panel electrical connection, the right part of side rotates and is connected with the wind-up roll of coiling the diaphragm on the second support frame, the equal rigid coupling of two expansion plate upper and lower both sides face has the mount, the equal rigid coupling in middle part of two mounts has the pneumatic push rod of second, two pneumatic push rods of second all with control panel electrical connection, equal rigid coupling has the second heat sealing sword that is used for to the diaphragm heat-seal on two pneumatic push rod's of second telescopic link, two second heat sealing sword all with control panel electrical connection.

Further, still including the design subassembly, the downside of two electrostatic plates is located to the design subassembly, the design subassembly is stereotyped to the sack both sides infolding portion with infolding subassembly cooperation, the design subassembly is including the second squeeze roll, the second squeeze roll is equipped with two altogether, two second squeeze rolls all rotate the right part of connecting in the second support frame, two second squeeze rolls all are provided with the cavity, all install the heating rod in the cavity of two second squeeze rolls, the heating rod on two second squeeze rolls respectively with control panel electrical connection, the rear portion of second support frame has fourth servo motor through the mount pad rigid coupling, fourth servo motor and control panel electrical connection, fourth servo motor's output shaft and two second squeeze roll gear drive.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that: according to the invention, the edge folding mechanism is arranged, the four rubber rollers with different inclination directions are used for bending the widened part of the lower bag making film, so that the lower bag making film is bent upwards and is contacted with the upper bag making film, the first sliding plate is always extruded on the upper side of the folded bag making film under the action of the elastic force of the two springs, and the phenomenon that the two edges at the rear part of the bag making film cannot be contacted due to the fact that the bag making film deviates forwards and backwards in the process of bending the edges of the bag making film by the four rubber rollers is avoided; the outer surface temperature of the two hollow rollers is reduced by the aid of the cooling mechanism, the bag making film subjected to longitudinal heat sealing is in contact with the outer surfaces of the two hollow rollers to be cooled, the bag making film subjected to longitudinal heat sealing is prevented from being high in temperature and deforming in the process of rightward transmission, so that the manufactured bag is prevented from deforming and being incapable of being normally used, the outer side surfaces of the two hollow rollers are cleaned by the aid of self water absorption of the sponge rollers, water drops are prevented from being condensed on the surfaces of the bag making film subjected to low temperature contact with the bag making film with higher temperature, and the heat sealing effect of the first heat sealing knife and the second heat sealing knife on the bag making film is influenced after the bag making film is in contact with the water drops; the expansion shearing mechanism is arranged, the bag making films subjected to longitudinal heat sealing are adsorbed by the two electrostatic plates, the problem that the bag making films cannot be inserted into the two expansion plates to cause the device cannot be normally used is avoided, the bag generation efficiency is reduced, the bag making films are transmitted rightwards by the first friction roller through friction force, and the bag making films are prevented from being folded and stacked on the two expansion plates to cause the inaccurate heat sealing position of the vertical diaphragm to influence the production quality of the bag; through setting up the design subassembly, utilize the extrusion force of two second squeeze rolls and the temperature that produces, to the both sides infolding department design around making the sack, the sack of having avoided making takes place fluffy, puts to follow-up collection and causes the difficulty.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a partial perspective view of the present invention.

Fig. 3 is a schematic sectional three-dimensional structure diagram of the folding mechanism of the invention.

Fig. 4 is a schematic diagram of a right perspective structure of the hemming mechanism of the present invention.

Fig. 5 is a schematic view of a partial sectional and perspective structure of the hemming mechanism of the present invention.

Fig. 6 is a schematic perspective view of the cooling mechanism of the present invention.

Fig. 7 is a schematic sectional three-dimensional structure view of the cooling mechanism of the present invention.

Fig. 8 is a rear perspective view of the expanding and shearing mechanism of the present invention.

Fig. 9 is a partially sectional perspective view of the expanding and shearing mechanism of the present invention.

Fig. 10 is a perspective view of a portion of the expanding and shearing mechanism of the present invention.

Fig. 11 is a schematic view of a partial right view of the vertical expansion shearing mechanism of the present invention.

Fig. 12 is a schematic perspective view of the diaphragm heat-sealing mechanism of the present invention.

In the figure: 1-a first support frame, 2-a triangular folding frame, 3-a first electric roller, 4-a first extrusion roller, 5-a second support frame, 501-a control panel, 6-a second electric roller, 7-a guide roller, 8-a transverse heat sealing device, 9-a third electric roller, 1001-a first fixing plate, 1002-a sliding column, 1003-a first support plate, 1004-a fixing column, 1005-a first sliding plate, 1006-a spring, 1007-a second support plate, 1008-a second sliding plate, 1009-a rubber roller, 1101-a hollow roller, 1102-a three-way pipe, 1103-a water tank, 1104-a first servo motor, 1105-a square shell, 1106-a sponge roller, 1107-a vent pipe, 1108-an air blower, 1201-an electrostatic plate, 1202-an electric sliding rail, 1203-cutting blade, 1204-first hot sealing knife, 1205-L shaped fixed plate, 1206-rotating rod, 1207-expanding plate, 1208-first gear, 1209-second servo motor, 1210-second gear, 1211-first electric transmission belt, 1212-first friction roller, 1213-second friction roller, 1214-third servo motor, 1215-sliding sleeve, 1216-supporting rod, 1217-rotating wheel, 1218-connecting frame, 1219-first pneumatic push rod, 1301-second fixed plate, 1302-second electric transmission belt, 1303-electric cutting knife, 1304-fixed frame, 1305-second pneumatic push rod, 1306-second hot sealing knife, 1401-second extrusion roller, 1402-fourth servo motor.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood with reference to specific situations.

Example 1

A three-side sealing bag making machine with edge sealing and folding functions is disclosed, as shown in figures 1-12, and comprises a first support frame 1, a triangular folding frame 2 for folding a bag making film in half is connected to the first support frame 1 through bolts, two first electric rollers 3 are rotatably connected to the lower portion of the first support frame 1, the two first electric rollers 3 are located on the lower side of the triangular folding frame 2, the two first electric rollers 3 are used for downwards conveying the folded bag making film, two first extrusion rollers 4 are rotatably connected to the front portion of the first support frame 1, the two first extrusion rollers 4 are located on the right sides of the two first electric rollers 3, the two first extrusion rollers 4 are used for extruding and shaping the folded bag making film to fold the bag making film, so that the bag making film is prevented from deviating from the bag making film on the upper and lower sides after the right transmission process, a second support frame 5 is arranged on the right side of the first support frame 1, and a control panel 501 is connected to the right portion of the upper side of the second support frame 5 through mounting seat bolts, the control panel 501 is electrically connected with the two first electric rollers 3, the left part of the upper side surface of the second support frame 5 rotates the two second electric rollers 6 through a mounting seat, the two second electric rollers 6 are respectively electrically connected with the control panel 501, the two second electric rollers 6 are used for transmitting the folded bag making film to the right side, the upper side surface of the second support frame 5 is rotatably connected with a guide roller 7 through the mounting seat, the guide roller 7 is positioned at the right side of the two second electric rollers 6, the upper side surface of the second support frame 5 is provided with a transverse heat sealing device 8 for heat sealing the edges of the bag making film, the transverse heat sealing device 8 is electrically connected with the control panel 501, the transverse heat sealing device 8 is used for heat sealing the two edges of the folded bag making film so as to connect the two edges of the folded bag making film, the upper side surface of the second support frame 5 is rotatably connected with two third electric rollers 9 through the mounting seat, the third electric rollers 9 are respectively electrically connected with the control panel 501, the two third electric rollers 9 are located on the right side of the transverse heat sealing device 8, the upper side face of the second support frame 5 is provided with a folding mechanism, the folding mechanism is located between the second electric rollers 6 and the guide roller 7, the folding mechanism is used for bending and folding the edge of the bag making film, the folding mechanism bends the lower side edge upwards to enable the lower side edge to be attached to the upper side face of the bag making film after folding, the bag making film bent by the folding mechanism is matched with the transverse heat sealing device 8 for edge heat sealing, the upper side face of the second support frame 5 is provided with a cooling mechanism, the cooling mechanism is located between the transverse heat sealing device 8 and the third electric rollers 9, the cooling mechanism is electrically connected with the control panel 501 and is used for cooling the bag making film after heat sealing, the bag making film after heat sealing is prevented from being locally higher in temperature and being subjected to rightward pulling deformation during transmission, the prepared bag cannot be put into use, the upper side face of the second support frame 5 is provided with an expansion mechanism, the expansion mechanism is located on the right side face of the bag making film, the expansion mechanism and the longitudinal expansion mechanism for connecting the bag making film with the heat sealing mechanism, and the longitudinal expansion mechanism for the bag making film, and the longitudinal expansion mechanism for the folding mechanism for connecting the two longitudinal expansion mechanism for the bag making film after heat sealing mechanism, and the bag making film, the two longitudinal expansion mechanism for the bag making film, and the two longitudinal expansion mechanism for the bag making film, the two longitudinal expansion mechanism for the bag making film.

When the device is used, an operator installs a collecting roller of a bag making film at the rear part of a first supporting frame 1, then the operator flatly lays the bag making film on the front side surface of a triangular folding frame 2, the bag making film is folded by the triangular folding frame 2, the lower side of the folded bag making film is wider than the upper side, the folded bag making film passes through two first electric rollers 3, the folded bag making film passes through two first extrusion rollers 4, the two first extrusion rollers 4 extrude the bending part of the bag making film to crease the bending part of the bag making film, the bag making film at the upper side and the lower side is prevented from deviating in the rightward transmission process, the edges of the two subsequent bag making films cannot be in contact and heat-sealed, then the operator passes the folded bag making film between the two second electric rollers 6, then the operator adjusts the position of a folding mechanism and fixes the folding mechanism, and the lower side edge is bent upwards by the folding mechanism, the lower side edge is attached to the upper side face of the folded bag making film, then an operator adjusts the transverse heat sealing device 8, the transverse heat sealing device 8 carries out heat sealing on two edges of the folded bag making film, the two edges of the folded bag making film are connected, then the longitudinally heat-sealed bag making film passes through the cooling mechanism, the cooling mechanism cools the heat sealing position of the bag making film, the phenomenon that the bag making film is locally high in temperature and deforms in the process of being pulled and transmitted rightwards to cause that a prepared bag cannot be put into use is avoided, then the operator enables the longitudinally heat-sealed bag making film to pass through the space between the two third electric rollers 9, the longitudinally heat-sealed bag making film is expanded towards two sides through the expansion shearing mechanism, then the diaphragm heat sealing mechanism carries out heat sealing on the vertical diaphragm in the longitudinally heat-sealed bag making film, and then the expansion shearing mechanism bends inwards towards the front side and the back side of the longitudinally heat-sealed bag making film, then cut the heat-seal through the expansion shearing mechanism to the system bag membrane, then will make the sack that has the interlayer and cut the mechanism from the expansion and take off, adjust this device through control panel 501 through operating personnel, operating personnel starts whole electric elements on this device through control panel 501, make this device drive the transmission right of system bag membrane indirectness, all electric elements all cooperate each other simultaneously, carry out work according to above-mentioned description operation flow and make the sack that has the interlayer, after this device finishes using, operating personnel closes this device through control panel 501, convenient next use.

Example 2

On the basis of embodiment 1, as shown in fig. 2 to 5, the edge folding mechanism includes a first fixing plate 1001, the first fixing plate 1001 is bolted to the left portion of the second supporting frame 5, a sliding slot is formed in the middle of the first fixing plate 1001, a sliding column 1002 is slidably connected in the sliding slot of the first fixing plate 1001, a rotating sleeve for extrusion limiting is connected to the lower portion of the sliding column 1002 through a thread, a first supporting plate 1003 is bolted to the upper side surface of the sliding column 1002, two fixing columns 1004 are welded to the front portion of the upper side surface of the first supporting plate 1003, a circular plate for limiting is welded to the upper ends of the fixing columns 1004, a first sliding plate 1005 is slidably connected to the two fixing columns 1004, the first sliding plate 1005 and the first supporting plate 1003 are vertically symmetrical, the positions of the sliding column 1002 are adjusted so that the rear edges of the first supporting plate 1003 and the first sliding plate 1005 are flush with the upper side edge of the folded bag making film, springs 1006 are sleeved on the outer side surfaces of the two fixing columns 1004 in a surrounding mode, two ends of each spring 1006 are fixedly connected to the first sliding plate 1005 and the adjacent fixing column 1004 respectively, the first sliding plate 1005 is always pressed on the upper side of the folded bag-making film under the elastic action of the two springs 1006, the situation that the front and back of the bag-making film deviate in the process that the four rubber rollers 1009 bend the edge of the bag-making film to cause that two edges at the rear of the bag-making film cannot be contacted is avoided, a second supporting plate 1007 is arranged on the left part of the upper side surface of the second supporting frame 5 through a bolt, the second supporting plate 1007 is arranged above the first sliding plate 1005, a long through hole is formed in the rear of the second supporting plate 1007, a second sliding plate 1008 is connected in the long through hole in a sliding mode, a rotating sleeve used for extrusion limiting is connected to the upper side surface of the second sliding plate 1008 through a thread, and four rubber rollers with different inclination angles are connected to the lower side surface of the second sliding plate 1008 in a rotating mode towards the right at equal intervals, the plurality of rubber rollers 1009 are used for bending the edge of the bag making film, and the four rubber rollers 1009 with different inclination directions are used for bending the wide part of the lower bag making film, so that the lower bag making film is bent upwards and is in contact with the upper bag making film.

As shown in fig. 6 and 7, the cooling mechanism includes two hollow rollers 1101, the two hollow rollers 1101 are rotatably connected to the upper side of the second support frame 5 through a mounting seat, the front and rear portions of the two hollow rollers 1101 are respectively connected to a tee pipe 1102 through a rotating sleeve, the two hollow rollers 1101 are respectively rotatably connected to the two tee pipes 1102, a water tank 1103 is installed at the lower portion of the second support frame 5, a water pump is installed in the water tank 1103, the water pump in the water tank 1103 is electrically connected to the control panel 501, the tee pipe 1102 at the front side is connected to a water pump in the water tank 1103, the water pump in the water tank 1103 delivers water to the two hollow rollers 1101, the water continuously circulates in the two hollow rollers 1101, the outer surface temperature of the two hollow rollers 1101 is reduced, the lower ends of the two tee pipes 1102 respectively penetrate through the water tank 1103, the bag making film after heat sealing is cooled by the two hollow rollers 1101, and the bag making film temperature after longitudinal heat sealing is prevented from being high, the bag is deformed in the process of rightward transmission, so that the manufactured bag cannot be normally used due to the deformation, the rear part of the lower side surface of the second support frame 5 is connected with a first servo motor 1104 through a mounting seat bolt, the first servo motor 1104 is electrically connected with the control panel 501, an output shaft of the first servo motor 1104 is in transmission with the rear parts of the two hollow rollers 1101 through a belt and a belt wheel, the second support frame 5 is connected with a square shell 1105 through a bolt, the square shell 1105 is positioned at the lower sides of the two hollow rollers 1101, a sponge roller 1106 for absorbing water is rotatably connected in the square shell 1105, the two hollow rollers 1101 simultaneously drive the sponge roller 1106 to rotate through friction force, the sponge roller 1106 cleans water drops on the outer side surfaces of the two hollow rollers 1101 through self water absorption, the sponge roller 1106 is in pressing contact with the outer side surfaces of the two hollow rollers 1101, the sponge roller 1106 is in contact and matching with the inner side surface of the square shell 1105, the downside intercommunication of square shell 1105 has ventilation pipe 1107, and the lower extreme intercommunication of ventilation pipe 1107 has air blower 1108, and air blower 1108 and control panel 501 electrical connection through ventilation pipe 1107 and the cooperation of square shell 1105, make the air that flows carry out continuous drying to sponge roller 1106, have avoided the moist clearance effect that reduces two hollow roller 1101 lateral surfaces of sponge roller 1106.

As shown in fig. 8-11, the expansion shearing mechanism includes two electrostatic plates 1201, two electrostatic plates 1201 are provided, two electrostatic plates 1201 are all bolted to the upper side of the second support frame 5 through a mounting plate, the two electrostatic plates 1201 are set to be splayed, the two electrostatic plates 1201 generate suction to the bag making film, so that the bag making film subjected to longitudinal heat sealing is adsorbed to the upper and lower sides, the bag making film cannot move continuously to the right and wrinkles are caused, the bag generation efficiency is reduced, the two electrostatic plates 1201 are electrically connected to the control panel 501, the front and rear parts of the right side surfaces of the mounting plates of the two electrostatic plates 1201 are bolted to electric sliding rails 1202, the two electric sliding rails 1202 are electrically connected to the control panel 501, two electric sliding blocks are connected to the two electric sliding rails 1202 in a sliding manner, cutting blades 1203 used for cutting the bag making film are welded between the front and rear adjacent electric sliding blocks, the right side surfaces of the two cutting blades 1203 are bolted to a first electric sealing knife 1204, the two electric sliding blocks on the two electric sliding rails 1202 drive the upper and lower sides of the bag making film 1203 to move close to shear the bag making film, meanwhile, the two first electric sealing blades 1204 are connected to the first heat sealing assembly 1204, the first electric sealing assembly 1204 for transverse expansion positioning and heat sealing assembly for transverse sealing assembly for connecting the bag making film 1204, and heat sealing assembly for transverse expansion and heat sealing assembly for positioning the bag making film 1204 for transverse heat sealing assembly for positioning assembly for transverse expansion and heat sealing assembly for positioning the bag making film 1204 for bag making film 1204, and for positioning assembly for transverse heat sealing assembly for positioning assembly for transverse expansion and for positioning assembly for positioning the bag making film 1204 for positioning assembly for heat sealing assembly for bag making film 1204 for bag making.

As shown in fig. 8-11, the expanding and positioning assembly includes two L-shaped fixing plates 1205, two L-shaped fixing plates 1205 are respectively bolted to the front and rear parts of the upper side of the second supporting frame 5, two L-shaped fixing plates 1205 are each rotatably connected to a rotating rod 1206, expansion plates 1207 are welded to the inner ends of the two rotating rods 1206, the two expansion plates 1207 gradually widen from left to right, the upper and lower parts of the two expansion plates 1207 gradually change from smooth circular arcs to right, the left parts of the two expansion plates 1207 are each provided with a notch for bending inward bag making films, the two expansion plates 1207 are used for expanding the bag making films, the outer ends of the two rotating rods 1206 are provided with spline rods, a first gear 1208 is keyed on each of the two rotating rods 1206, the upper sides of the two L-shaped fixing plates 1205 are each bolted to a second servo motor 1209 through a mounting base, the two second servo motors 1209 are each electrically connected to the control panel 501, the output shafts of the two second servo motors 1209 are all in keyed connection with second gears 1210, the two second gears 1210 are respectively meshed with adjacent first gears 1208 to be used for adjacent driving rotating rods 1206 to rotate, the inner side surfaces of the two expansion plates 1207 are all in bolted connection with first electric transmission belts 1211 used for transmitting vertical diaphragms to the left side, the two first electric transmission belts 1211 are all electrically connected with the control panel 501, the upper side surface of the second support frame 5 is rotatably connected with first friction rollers 1212 through mounting seats, the bag making films are transmitted to the right side through friction force by the first friction rollers 1212, the bag making films are prevented from being folded and stacked on the two expansion plates 1207, the heat sealing positions of the vertical diaphragms are inaccurate, the production quality of the bags is influenced, the first friction rollers 1212 are matched with the upper side surfaces of the two expansion plates 1207, the second friction rollers 1213 are rotatably connected to the second support frame 5, second friction roller 1213 and the downside cooperation of two expansion board 1207, second friction roller 1213 is located first friction roller 1212 directly under, the equal ring cover in lateral surface of first friction roller 1212 and second friction roller 1213 has the sheet rubber that is used for increasing frictional force, the sheet rubber on first friction roller 1212 and the second friction roller 1213 is used for preventing to take place to skid with the bag membrane, lead to the bag membrane to take place the fold, cause vertical diaphragm heat-seal position inaccurate, influence the production quality of sack, the trailing flank of second support frame 5 has third servo motor 1214 through mount pad bolted connection, third servo motor 1214 and control panel 501 electrical connection, the output shaft of third servo motor 1214, first friction roller 1212 and second friction roller 1213 pass through belt and pulley drive.

As shown in fig. 11, the inward folding assembly includes two sliding sleeves 1215, the sliding sleeves 1215 are provided with two sliding sleeves 1215, the two sliding sleeves 1215 are slidably connected to the two rotating rods 1206 respectively, the two sliding sleeves 1215 are spline connected to the adjacent rotating rods 1206 respectively, a supporting rod 1216 is welded to the left portion of the outer side surfaces of the two sliding sleeves 1215, the left ends of the two supporting rods 1216 are rotatably connected to rotating wheels 1217 respectively, the thickness of the two rotating wheels 1217 is smaller than the width of the left opening of the adjacent expansion plate 1207, the two rotating wheels 1217 drive the front and rear side surfaces of the bag making film to be inserted into the opening of the left end of the two expansion plate 1207 respectively, so that the front and rear sides of the bag making film are bent inwards, the outer ring surfaces of the two sliding sleeves 1215 are slidably connected to a connecting frame 1218, the upper side surfaces of the two L-shaped fixing plates 1205 are both bolted to first pneumatic push rods 1219 through mounting seats, the two first pneumatic push rods 1219 are electrically connected to the control panel 501, and the telescopic rods of the two first pneumatic push rods 1219 are welded to the adjacent connecting frame respectively.

As shown in fig. 12, the diaphragm heat sealing mechanism includes a second fixing plate 1301, the second fixing plate 1301 is bolted to the right portion of the upper side of the second support frame 5, the upper side of the second support frame 5 is bolted with two second electric transmission belts 1302, the two second electric transmission belts 1302 are both electrically connected with the control panel 501, the inner sides of the two second electric transmission belts 1302 are in contact fit, the left portions of the two second electric transmission belts 1302 are bolted with electric cutters 1303 used for shearing diaphragms, the electric cutters 1303 are electrically connected with the control panel 501, the electric cutters 1303 cut off the vertical diaphragms, so that the vertical diaphragms are separated, the right portion of the upper side of the second support frame 5 is rotatably connected with a winding roller wound with diaphragms, the upper and lower edges of the vertical diaphragms are respectively in contact with the upper and lower sides of the inner side of the bag making film, the upper and lower edges of the vertical diaphragms are bent and attached to the inner side of the bag making film, the upper and lower edges of the vertical diaphragms are bolted with fixing frames 1304, the middle portions of the two expansion plates 1207 and the two side surfaces of the expansion plates are respectively bolted with fixing frames 1304, the second push rods 1305, the two upper portions of the two expansion rods 1305 are respectively connected with two expansion rods 1306, and used for driving the two expansion rods 1306 of the two expansion rods 1306 for respectively driving the two expansion rods 1306 of the two expansion rods which are respectively connected with the second pneumatic push rods which are used for driving the two expansion rods 1306 for heat sealing of the two expansion rods 1306 of the two expansion rods which are respectively.

An operator installs a winding roll wound with a bag making film at the rear part of a first support frame 1, meanwhile, the bag making film is flatly laid on the front side surface of a triangular folding frame 2, the bag making film is folded by the triangular folding frame 2, the operator passes through a first electric roller 3, a first extrusion roller 4 and a second electric roller 6, the width of the lower side of the folded bag making film is larger than the width of the upper side, then the operator rotates a rotating sleeve at the lower part of a sliding column 1002 to enable the sliding column 1002 to be loose, the operator pulls a first sliding plate 1005 upwards, the first sliding plate 1005 moves upwards along two fixed columns 1004, two springs 1006 are compressed, the operator places the folded bag making film between a first support plate 1003 and the first sliding plate 1005, then the operator adjusts the position of the sliding column 1002 to enable the rear edges of the first support plate 1003 and the first sliding plate 1005 to be flush with the upper side edge of the folded bag making film, the operator moves the first sliding plate 1005 downwards along the fixed columns 1004 to reset, the two springs 1006 are still in a compressed state, the operator then rotates the rotating sleeve on the lower side of the sliding column 1002 to fix the sliding column 1002 and the first supporting plate 1003 on the upper part of the sliding column again, the operator rotates the rotating sleeve on the second sliding plate 1008 to loose the fixation of the second sliding plate 1008, the second sliding plate 1008 slides along the chute of the second supporting plate 1007, when the four rubber rollers 1009 all contact the rear edge of the first sliding plate 1005, the operator rotates the rotating sleeve on the second sliding plate 1008 again to fix the second sliding plate 1008 and the four rubber rollers 1009 on the upper part of the second sliding plate 1008, the four rubber rollers 1009 with different inclination directions are used for bending the widened part on the lower side of the bag making film on the lower side, so that the bag making film is bent upwards and contacted with the bag making film on the upper side, under the elastic action of the two springs 1006, the first sliding plate 1005 is always extruded on the upper side of the folded bag making film, so that the situation that the two edges at the rear part of the bag making film cannot be contacted due to the fact that the bag making film deviates forwards and backwards in the process that the four rubber rollers 1009 bend the edges of the bag making film is avoided.

An operator pulls the bag making film after the two edges at the rear part contact to the right to enable the bag making film to pass through the lower side of the guide roller 7, the guide roller 7 extrudes the edge bending part of the bag making film again, then the operator adjusts the position of the heat sealing knife on the transverse heat sealing device 8 to enable the heat sealing knife at the upper side to be positioned right above the edge bending part of the bag making film, the operator starts the transverse heat sealing device 8 through the control panel 501 to carry out heat sealing on the edge folded in half of the bag making film, then the operator enables the bag making film to pass through the two third electric rollers 9, meanwhile, the heat-sealed paper bag film passes through the upper sides of the two hollow rollers 1101, the operator starts a water suction pump in the water tank 1103 through the control panel 501, and water in the water tank 1103 enters the two hollow rollers 1101 from the three-way pipe 1102 at the front side, then the bag making film is discharged into a water tank 1103 again from a three-way pipe 1102 at the rear side, water flows circularly from the two hollow rollers 1101, the temperature of the outer surfaces of the two hollow rollers 1101 is reduced, the bag making film subjected to longitudinal heat sealing contacts with the outer surfaces of the two hollow rollers 1101 to be cooled, the phenomenon that the bag making film subjected to longitudinal heat sealing is high in temperature and deforms in the rightward transmission process, so that the manufactured bag cannot be used normally, then an operator puts the right end of the bag making film between the two electrostatic plates 1201, sleeves the bag making film subjected to longitudinal heat sealing on the two expansion plates 1207, the bag making film subjected to longitudinal heat sealing expands outwards, at the moment, the first friction roller 1212 contacts with the upper side surface of the bag making film subjected to longitudinal heat sealing, and then places the vertical diaphragm between the two second electric transmission belts 1302.

Then, the operator starts all the electric elements on the device through the control panel 501, the control panel 501 starts two second electric transmission belts 1302, the two second electric transmission belts 1302 transmit vertical diaphragms to the left and contact with the two first electric transmission belts 1211, meanwhile, the control panel 501 starts the two first electric transmission belts 1211, the two first electric transmission belts 1211 transmit the vertical diaphragms to the left, then the control panel 501 starts an electric cutter 1303, the electric cutter 1303 cuts off the vertical diaphragms, when the two first electric transmission belts 1211 transmit the vertical diaphragms to the left, the upper edges and the lower edges of the vertical diaphragms respectively contact with the upper side and the lower side of the inner side of the bag making film, the upper edges and the lower edges of the vertical diaphragms are bent and attached to the inner side of the bag making film, after the vertical diaphragms reach the designated position, the control panel 501 closes the two first electric transmission belts 1211, the control panel 501 then starts the two second heat sealing cutters 1306, high temperature is generated on the two second heat sealing cutters 1306, then the control panel 501 starts two second push rods 1305, the telescopic rods 1305 of the two second pneumatic push rods 1305 drive the second heat sealing cutters 1306 on the two second pneumatic push rods 1305 respectively to move close to the vertical sealing blades 1306, heat sealing and the bag making film, and the heat sealing diaphragm are sealed, and the bag making film, and the two pneumatic push rods 501 are reset, and the control panel 501 is reset.

The control panel 501 then starts two first pneumatic push rods 1219, the telescopic rods of the two first pneumatic push rods 1219 respectively drive the two sliding sleeves 1215 to slide close to each other through the connecting rack 1218, the two sliding sleeves 1215 respectively drive the two rotating wheels 1217 to move close to each other through the supporting rod 1216 on the two sliding sleeves 1215, the two rotating wheels 1217 respectively drive the front and rear sides of the bag-making film to be inserted into the notches at the left ends of the two expansion plates 1207, then the control panel 501 starts the two electric sliding rails 1202, the two electric sliding blocks on the two electric sliding rails 1202 drive the cutting blades 1203 on the upper and lower sides to move close to cut the bag-making film, the two first heat sealing blades 1204 transversely heat seal the bag-making film, then the control panel 501 controls the two cutting blades 1203 and the first heat sealing blade 1204 to move away from each other, the control panel 501 then starts the two second servo motors 1209, the output shafts of the two second servo motors 1209 are driven by the adjacent first gear 1208 and second gear 1210, so that the two rotating rods 1206 respectively drive the adjacent expansion board 1207 and the bag on the expansion board 1207 to swing anticlockwise, the first friction roller 1212 loses contact with the upper side of the bag, when the two expansion boards 1207 swing to a specified position, the lower side of the bag is contacted with the second friction roller 1213, then the control panel 501 starts the third servo motor 1214, the output shaft of the third servo motor 1214 is driven by a belt and a pulley to rotate the second friction roller 1213 anticlockwise, the control panel 501 starts the two first electric transmission belts 1211, the bag moves leftwards along the two expansion boards 1207 under the cooperation of the second friction roller 1213 and the two first electric transmission belts 1211, during the leftward movement of the bag, the two rotating wheels 1217 fold the front and back inner sides of the bag, and the expansion board 1207 is used for cooperating with the rotating wheels 1217, the resulting bag is allowed to have an inner space, and then the control panel 501 resets the two expansion plates 1207 and the two rotating wheels 1217 while the control panel 501 closes the second servo motor 1209, the first motor-driven conveyor belt 1211, the third servo motor 1214 and the first pneumatic pusher 1219, and the first friction roller 1212 comes into contact with the upper sides of the two expansion plates 1207 again.

The control panel 501 controls the first electric roller 3, the second electric roller 6 and the third electric roller 9 to indirectly transmit the bag making film to the right, so that the device intermittently and automatically operates, the control panel 501 starts the first servo motor 1104 and the blower 1108, the output shaft of the first servo motor 1104 drives the two hollow rollers 1101 to rotate clockwise through belt and pulley transmission, the two hollow rollers 1101 simultaneously drive the sponge rollers 1106 to rotate through friction force, the sponge rollers 1106 clean water drops on the outer side surfaces of the two hollow rollers 1101 through self water absorption, water drops are prevented from being condensed on the surfaces of the bag making film with high temperature after the two hollow rollers 1101 are in low temperature contact with the bag making film with high temperature, the heat sealing effect of the first heat sealing knife 1204 and the second heat sealing knife 1306 on the bag making film is influenced after the bag making film is in contact with the water drops, air is sucked outwards through the vent pipe 1107, the vent pipe 1107 is matched with the square shell, so that the flowing air continuously dries the sponge rollers 1106, the cleaning effect of the sponge roller 1106 on the outer side surfaces of the two hollow rollers 1101 due to moisture reduction is avoided, the edge of the right side of the transversely cut bag making film is located between the two electrostatic plates 1201, the control panel 501 energizes the two electrostatic plates 1201 to enable the two electrostatic plates 1201 to generate suction force on the bag making film, the longitudinally heat-sealed bag making film is adsorbed to the upper side and the lower side, the longitudinally heat-sealed bag making film is then conveyed rightwards under the action of the first electric roller 3, the second electric roller 6 and the third electric roller 9, the two electrostatic plates 1201 are used for adsorbing the longitudinally heat-sealed bag making film, the situation that the bag making film cannot be inserted into the two expansion plates 1207 to cause that the device cannot be normally used is avoided, the bag generating efficiency is reduced, the bag making film conveyed rightwards is sleeved on the two expansion plates 1207, the control panel 501 starts the third servo motor 1214, the output shaft of the third servo motor 1214 drives the first friction roller 1212 to rotate anticlockwise through the belt and the belt pulley, utilize first friction roller 1212 to transmit system bag membrane right through frictional force, avoid system bag membrane to take place the fold on two expansion board 1207 and pile up, cause vertical diaphragm heat-seal position inaccurate, influence the production quality of sack, then repeat above-mentioned operation with vertical diaphragm heat-seal at the medial surface of system bag membrane, through whole electrical components on this device of control panel 501 control, make this device carry out the system bag according to fixed frequency of being interrupted, after the system bag finishes, operating personnel closes whole electrical components on this device through control panel 501 and is convenient for use next time.

Example 3

On the basis of embodiment 2, as shown in fig. 8 and 10, the bag packaging machine further comprises a shaping assembly, the shaping assembly is arranged on the lower sides of the two electrostatic plates 1201, the shaping assembly and the inward folding assembly are matched to shape inward folded portions of two sides of the bag, the shaping assembly comprises two second squeezing rollers 1401, the two second squeezing rollers 1401 are arranged in total, the two second squeezing rollers 1401 are rotatably connected to the right portion of the second supporting frame 5, the inward folded portions of the front and back sides of the manufactured bag are shaped through squeezing force and generated temperature of the two second squeezing rollers 1401, the problem that the manufactured bag is fluffy and difficult to collect and place in the subsequent process is avoided, the two second squeezing rollers 1401 are provided with cavities, heating rods are arranged in the cavities of the two second squeezing rollers 1401, the temperature generated by the two heating rods is lower than that generated by the transverse heat sealing device 8, the heating rods on the two second squeezing rollers 1401 are electrically connected with the control panel 501 respectively, a fourth servo motor 1402 is fixedly connected to the rear portion of the second supporting frame 5 through a mounting seat, the fourth servo motor 1402 is electrically connected with the control panel 501, and an output shaft 1401 of the fourth servo motor 1401 and a transmission gear of the two second squeezing rollers are fixedly connected with the control panel 501.

When the manufactured bag moves leftwards from the two expansion plates 1207, the control panel 501 starts the fourth servo motor 1402, an output shaft of the fourth servo motor 1402 drives the two second squeezing rollers 1401 to rotate through gear transmission, the rotating directions of the two second squeezing rollers 1401 are opposite, the control panel 501 starts heating rods in cavities of the two second squeezing rollers 1401, the temperatures generated by the two heating rods are lower than the temperature generated by the transverse heat sealing device 8, the manufactured bag moves leftwards from the two expansion plates 1207, the left end of the manufactured bag is inserted between the two second squeezing rollers 1401, inward folding positions at the front side and the rear side of the manufactured bag are shaped through the squeezing force and the generated temperature of the two second squeezing rollers 1401, the manufactured bag is prevented from being fluffy, and difficulty in subsequent collection and placement is avoided.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-side sealing bag making machine with a sealing and folding function comprises a first support frame (1), a triangular folding frame (2) used for folding a bag making film is fixedly connected to the first support frame (1), two first electric rollers (3) are rotatably connected to the lower portion of the first support frame (1), the two first electric rollers (3) are located on the lower side of the triangular folding frame (2), the two first electric rollers (3) are used for downwards conveying the folded bag making film, the front portion of the first support frame (1) is rotatably connected with two first extrusion rollers (4), the two first extrusion rollers (4) are located on the right sides of the two first electric rollers (3), the two first extrusion rollers (4) are used for extruding and shaping the folded bag making film, a second support frame (5) is arranged on the right side of the first support frame (1), a control panel (501) is fixedly connected to the right portion of the upper side of the second support frame (5) through a mounting seat, the left portion of the upper side of the second support frame (5) rotates through a mounting seat, the two second electric rollers (6) are respectively connected with a heat sealing device, and a heat sealing device is connected with the upper side of the second electric rollers (7) through a heat sealing device, the upper side surface of the second support frame (5) is rotatably connected with two third electric rollers (9) through a mounting seat, the two third electric rollers (9) are positioned on the right side of the transverse heat sealing device (8), the two first electric rollers (3), the two second electric rollers (6), the transverse heat sealing device (8) and the two third electric rollers (9) are respectively electrically connected with the control panel (501), the folding machine is characterized by further comprising a folding mechanism, the folding mechanism is arranged on the upper side surface of the second support frame (5), the folding mechanism is positioned between the second electric rollers (6) and the guide roller (7), the folding mechanism is used for bending and folding edges of the bag making film, the bag making film bent by the folding mechanism is matched with the transverse heat sealing device (8) for heat sealing of the edges, the upper side surface of the second support frame (5) is provided with a cooling mechanism, the cooling mechanism is positioned between the transverse heat sealing device (8) and the third electric rollers (9), the cooling mechanism is used for heat sealing the bag making film after heat sealing, the upper side surface of the second support frame (5) is provided with an expansion shearing mechanism, the right side surface of the expansion mechanism for connecting the heat sealing mechanism and the expansion mechanism for controlling the heat sealing of the bag making film, and the expansion mechanism for controlling the expansion of the heat sealing mechanism.

2. The three-edge sealing bag making machine with the functions of sealing and folding edges as claimed in claim 1, wherein the edge folding mechanism comprises a first fixing plate (1001), the first fixing plate (1001) is fixedly connected to the left part of the second supporting frame (5), a sliding groove is formed in the middle of the first fixing plate (1001), a sliding column (1002) is slidably connected to the sliding groove of the first fixing plate (1001), a rotating sleeve for extrusion and limiting is connected to the lower part of the sliding column (1002) through a thread, a first supporting plate (1003) is fixedly connected to the upper side surface of the sliding column (1002), two fixing columns (1004) are fixedly connected to the front part of the upper side surface of the first supporting plate (1003), a circular plate for limiting is fixedly connected to the upper ends of the fixing columns (1004), a first sliding plate (1005) is slidably connected to the two fixing columns (1004), the first sliding plate (1005) and the first supporting plate (1003) are vertically symmetrical, a spring (1006) is sleeved on the outer side surface of the two fixing columns (1004), two ends of the two springs (1006) are respectively connected to the fixing columns (1005) of the first sliding plate and the adjacent fixing column (1004), a second sliding plate (1008) is fixedly connected to the left side surface of the second supporting frame (5), a through hole (1007) is formed in the through hole of the second supporting plate, a second through hole (1007) is formed in the second through hole (1007), the upper side of the second sliding plate (1008) is in threaded connection with a rotating sleeve used for extrusion limiting, the lower side face of the second sliding plate (1008) is in equidistant rotating connection with a plurality of rubber rollers (1009) with different inclination angles from left to right, and the plurality of rubber rollers (1009) are used for bending the edge of the bag making film.

3. The three-edge sealing bag making machine with the sealing and folding functions as claimed in claim 2, wherein the cooling mechanism comprises two hollow rollers (1101), the two hollow rollers (1101) are rotatably connected to the upper side surface of the second support frame (5) through a mounting seat, the front and rear parts of the two hollow rollers (1101) are respectively communicated with a three-way pipe (1102) through a rotating sleeve, the two hollow rollers (1101) are respectively rotatably connected with the two three-way pipes (1102), the lower part of the second support frame (5) is provided with a water tank (1103), a water suction pump is arranged in the water tank (1103), the water suction pump in the water tank (1103) is electrically connected with the control panel (501), the lower ends of the two three-way pipes (1102) respectively penetrate through the water tank (1103), the three-way pipe (1102) at the front side is communicated with a water pump in the water tank (1103), the rear part of the lower side surface of the second support frame (5) is fixedly connected with a first servo motor (1104) through the mounting seat, the first servo motor (1104) is electrically connected with the control panel (501), the outer side surface of the first servo motor (1104) is in contact with the two square rollers (1105) through a transmission shaft (1105), the hollow rollers (1105) and an output shaft (1106) of the sponge roller (1105) is fixedly connected with the two square roller (1105), sponge roller (1106) and square shell (1105) medial surface contact cooperation, the downside intercommunication of square shell (1105) has ventilation pipe (1107), and the lower extreme intercommunication of ventilation pipe (1107) has air-blower (1108), and air-blower (1108) and control panel (501) electrical connection.

4. The three-sided bag sealing machine with the bag sealing and folding functions as claimed in claim 3, wherein the expansion and shearing mechanism comprises two electrostatic plates (1201), two electrostatic plates (1201) are fixedly connected to the upper side face of the second support frame (5) through a mounting plate, the two electrostatic plates (1201) are arranged in a splayed inclined manner, the two electrostatic plates (1201) are electrically connected to the control panel (501), electric sliding rails (1202) are fixedly connected to the front and back sides of the right side face of the mounting plate of the two electrostatic plates (1201), the two electric sliding rails (1202) are electrically connected to the control panel (501), two electric sliding blocks are slidably connected to the two electric sliding rails (1202), a cutting blade (1203) for cutting a bag making film is fixedly connected between the front and back adjacent electric sliding blocks, a first heat sealing knife (1204) is fixedly connected to the front and back sides of the two cutting blades (1203) in a sunken manner, the two first heat sealing knives (1204) are electrically connected to the control panel (501), the two first heat sealing knives (1204) are used for longitudinally aligning the heat sealing film, the two first heat sealing knives are provided with an inner heat sealing positioning component for positioning the bag making, and an expansion and positioning component is arranged on the front and back of the bag making film.

5. The three-sided bag sealing machine with the sealing and folding functions as claimed in claim 4, wherein the expansion positioning assembly comprises two L-shaped fixing plates (1205), two L-shaped fixing plates (1205) are provided, two L-shaped fixing plates (1205) are respectively and fixedly connected to the front and rear portions of the upper side of the second supporting frame (5), two rotating rods (1206) are respectively and rotatably connected to the two L-shaped fixing plates (1205), two expansion plates (1207) are fixedly connected to the inner ends of the two rotating rods (1206), the outer ends of the two rotating rods (1206) are provided with spline rods, first gears (1208) are respectively and fixedly connected to the two rotating rods (1206), second servo motors (1209) are respectively and fixedly connected to the upper side of the two L-shaped fixing plates (1205) through mounting seats, two second servo motors (1209) are respectively and electrically connected to the control panel (501), second gears (1210) are respectively and fixedly connected to the output shafts of the two second servo motors (1209), two second gears (1210) are respectively and are respectively engaged with the adjacent first gears (1208) for rotating the driving transmission belt (1206) for rotating, two expansion plates (1212) are respectively and are connected to the upper side of the first expansion plate (1212), the second friction roller (1213) is connected with the second support frame (5) in a rotating manner, the second friction roller (1213) is matched with the lower side surfaces of the two expansion plates (1207), the second friction roller (1213) is positioned under the first friction roller (1212), the rear side surface of the second support frame (5) is fixedly connected with a third servo motor (1214) through a mounting seat, the third servo motor (1214) is electrically connected with the control panel (501), and the output shaft of the third servo motor (1214), the first friction roller (1212) and the second friction roller (1213) are in transmission through a belt and a belt wheel.

6. The three-edge bag sealing and folding machine with the edge sealing and folding functions as claimed in claim 5, wherein the outer side surfaces of the first friction roller (1212) and the second friction roller (1213) are sleeved with rubber sheets for increasing friction force.

7. The three-edge bag sealing machine with the edge sealing and folding functions as claimed in claim 5, wherein the two expansion plates (1207) gradually widen from left to right, the upper and lower parts of the two expansion plates (1207) gradually change from right to left in a smooth arc, and the left parts of the two expansion plates (1207) are provided with notches for inwards bending and folding bag films.

8. The three-edge bag sealing machine with the edge sealing and folding functions as claimed in claim 5, wherein the folding-in component comprises two sliding sleeves (1215), the two sliding sleeves (1215) are provided, the two sliding sleeves (1215) are respectively connected to the two rotating rods (1206) in a sliding manner through spline connection, a supporting rod (1216) is fixedly connected to the left part of the outer side surfaces of the two sliding sleeves (1215), the left ends of the two supporting rods (1216) are respectively and rotatably connected with a rotating wheel (1217), the thickness of the two rotating wheels (1217) is smaller than the width of a left opening of an adjacent expansion plate (1207), the outer annular surfaces of the two sliding sleeves (1215) are respectively and slidably connected with a connecting frame (1218), the upper side surfaces of the two L-shaped fixing plates (1205) are respectively and fixedly connected with first pneumatic push rods (1219) through mounting seats, the two first pneumatic push rods (1219) are respectively and electrically connected with the control panel (501), and the telescopic rods of the two first pneumatic push rods (1219) are respectively and fixedly connected with the adjacent connecting frame (1218).

9. The three-sided bag sealing machine with the edge sealing and folding functions as claimed in claim 5, wherein the membrane heat sealing mechanism comprises a second fixing plate (1301), the second fixing plate (1301) is fixedly connected to the right portion of the upper side of the second support frame (5), two second electric transmission belts (1302) are fixedly connected to the upper side of the second support frame (5), the two second electric transmission belts (1302) are electrically connected to the control panel (501), the inner side surfaces of the two second electric transmission belts (1302) are in contact fit, an electric cutter (1303) for cutting the membrane is fixedly connected to the left portion of the two second electric transmission belts (1302), the electric cutter (1303) is electrically connected to the control panel (501), the right portion of the upper side of the second support frame (5) is rotatably connected to a winding roller wound with the membrane, fixing frames (1304) are fixedly connected to the upper and lower portions of the two expansion plates (1207), a second pneumatic push rod (1305) is fixedly connected to the middle portions of the two fixing frames (1304), the two second pneumatic push rods (1305) are electrically connected to the control panel (1306), and the two heat sealing blades (1306) are fixedly connected to the second pneumatic push rods (1306).

10. The three-edge sealing bag making machine with the edge sealing and folding functions as claimed in claim 9, further comprising a shaping assembly, wherein the shaping assembly is arranged on the lower sides of the two electrostatic plates (1201), the shaping assembly and the folding assembly are matched to shape the folded portions of the two edges of the bag, the shaping assembly comprises two second extrusion rollers (1401), the two second extrusion rollers (1401) are provided, the two second extrusion rollers (1401) are rotatably connected to the right portion of the second supporting frame (5), the two second extrusion rollers (1401) are provided with cavities, heating rods are arranged in the cavities of the two second extrusion rollers (1401), the heating rods on the two second extrusion rollers (1401) are respectively and electrically connected with the control panel (501), the rear portion of the second supporting frame (5) is fixedly connected with a fourth servo motor (1402) through a mounting seat, the fourth servo motor (1402) is electrically connected with the control panel (501), and an output shaft of the fourth servo motor (1402) and the two second extrusion rollers (1401) are in gear transmission.