CN211968599U - Paper stereo bag forming machine - Google Patents

Abstract

The invention discloses a paper three-dimensional bag forming machine which is characterized in that a folding mechanism, an edge welding mechanism, a flanging mechanism, a cutting mechanism, an edge covering mechanism, a bag handle bonding mechanism, an indentation die cutting mechanism, a waste removing mechanism and a forming mechanism are sequentially arranged along the conveying direction of paper, wherein the folding mechanism is composed of a folding plate, the edge welding mechanism is composed of a pressing wheel and an ultrasonic welder, the indentation mechanism is provided with a longitudinal indentation knife, a transverse indentation knife and a splayed indentation die and is provided with a longitudinal cutter and a transverse cutter, the waste removing mechanism is provided with a waste removing cylinder, and a push plate is connected to a piston of the waste removing cylinder. The structure of the invention can carry out various pre-treatments on paper, send the paper to the forming mechanism and form the paper three-dimensional bag, has scientific and reasonable structure and stable work, and has good application effect on forming the paper three-dimensional bag.

Description

Paper three-dimensional bag forming machine

technical field

The invention relates to a three-dimensional bag forming machine, in particular to a paper three-dimensional bag forming machine.

Background technique

The bags we use every day generally include non-woven bags and paper bags. Non-woven bags are moisture-proof, breathable, flexible, light in weight, non-flammable, easy to decompose, non-toxic and non-irritating, and can be recycled. It is popular with people because of its characteristics. The production method is to cut the roll of non-woven fabric into a suitable size, and make it through a certain production process. The production process is relatively complicated. This non-woven bag is suitable for advertising. However, if it is used as a packaging bag, it is necessary to print various exquisite patterns on the non-woven bag. Due to the limitation of the material of the non-woven bag, printing various exquisite patterns on the bag body is limited by various conditions , is very troublesome, and as a packaging bag, the paper bag looks much more high-end than the non-woven bag, and the three-dimensional effect is also very strong, and it is much more convenient to print exquisite patterns on the paper bag than the non-woven fabric. Therefore, using an automatic machine to make a paper three-dimensional bag to meet the needs of the market is a difficult problem that those skilled in the art have always needed to solve.

SUMMARY OF THE INVENTION

In view of the problems existing in the background art, the technical problem to be solved by the present invention is to provide a forming machine that can directly form paper into a paper three-dimensional bag through a series of treatments.

To this end, the present invention is realized by adopting the following technical solutions: along with the conveying direction of the paper, a folding mechanism, a welding mechanism, a bag handle bonding mechanism, an indentation die-cutting mechanism, a waste rejection mechanism and a forming mechanism are sequentially arranged, The hemming mechanism is composed of a hemming plate, and the welding mechanism is composed of a pressing wheel and an ultrasonic welder. Die, respectively indent the longitudinal and transverse directions of the paper, and press out an "eight"-shaped indentation line at the longitudinal indentation line. The indentation die-cutting mechanism also has a longitudinal cutter and a transverse cutter. The waste rejection mechanism has a waste rejection cylinder, and a push plate is connected to the piston of the waste rejection cylinder to remove the paper cut by the longitudinal cutter and the transverse cutter.

There are also a flanging mechanism, a cutting mechanism and a hemming mechanism between the welding mechanism and the bag handle bonding mechanism. The flanging mechanism has a pair of flanging wheels, and the cutting mechanism has an "L" type cutter. , the flanging is cut, and the hemming mechanism has a hemming plate.

A heat-sealing mechanism is also arranged between the bag handle bonding mechanism and the indentation die-cutting mechanism, and the heat-sealing mechanism has an upper heat-sealing plate that moves up and down and a fixed lower heat-sealing plate.

The scrapping mechanism is provided on the mounting frame of the transverse cutter of the indentation die-cutting mechanism, and the scrapping mechanism has a scrapping rack, and the scrapping rack is installed on the mounting rack, and the scrapping rack A waste conveyor belt with circulating drive is installed on it.

Another technical solution of the waste rejection mechanism of the present invention is that the waste rejection mechanism is located at the paper output end of the indentation die-cutting mechanism, and further has a lifting frame and a lifting cylinder, and a pressing frame is connected to the lifting frame, and the lifting frame is connected to the pressing frame. A transmission belt is installed on the pressing frame, the lifting frame is connected with a lifting cylinder, the waste rejection cylinder is installed on the lift frame, a push plate is connected to the push rod of the waste rejection cylinder, and a lower part of the waste rejection cylinder is provided with a push plate. Circulating conveyor belt for waste.

The bag handle bonding mechanism includes a body on which a bag handle paper tape placement shaft is installed, and a paper tape folding device, a tape cutting device, a bag handle device, a bag handle bending device and an ultrasonic welding head are installed in the body. The upper part of the ultrasonic welding head is provided with a pressing block that moves up and down, and the upper end of the ultrasonic welding head is provided with a movable insert plate.

Both ends of the ultrasonic welding head are provided with pressing plates.

The "eight"-shaped indentation die is arranged between the longitudinal indentation knife and the transverse indentation knife.

Three of the longitudinal creasing knives are arranged on the beam side by side, and are provided with support rollers matched with the longitudinal creasing knives.

There are four transverse creasing knives, and they are all mounted on a fixing frame through a wheel frame. The fixing frame is fixed on a first synchronous belt, and the first synchronous belt is driven by a motor. The bottom is provided with a corresponding support plate.

Among the four transverse creasing knives, the wheel frames of the two transverse creasing knives on both sides can be movably installed on the linear guide rails, and the middle two transverse creasing knives are installed staggered in tandem, and the fixed The frame is provided with a square groove, and the wheel frame is placed in the square groove, and the linear guide rail is screwed with a screw rod.

Another solution of the bag handle bonding mechanism of the present invention is as follows: the bag handle bonding mechanism includes a gluing device and a bag handle connecting device, the bag handle connecting device includes a body, and the body is provided with a bag handle paper tape placing shaft , and a paper tape folding device, a tape cutting device, a bag handle device, a bag handle bending device and a paper tape compound device are installed in the body.

The gluing device includes a gluing tank, a gluing wheel and a gluing roller that can move up and down. The gluing roller is mounted on a swing rod, one end of the swing rod is eccentrically hinged with the lower synchronizing wheel, and the other end is eccentrically hinged with the lower synchronizing wheel. The upper synchronizing wheel is eccentrically hinged, the lower synchronizing wheel and the upper synchronizing wheel are connected by a synchronous belt, and the upper synchronizing wheel is connected with the gluing motor.

The paper tape compounding device includes a compound paper tape placing shaft, a traction wheel, a paper cutting tape device and a composite paper tape turning device.

The composite paper tape turning device includes a suction cup, a rotating shaft, and a lifting seat, the suction cup is mounted on the rotating shaft, the rotating shaft is rotatably mounted on the lifting seat, and both ends of the rotating shaft are mounted on the lifting seat. Located in the "S"-shaped limit groove, the lifting seat is fixed on the synchronous belt, and the synchronous belt is driven by the lifting motor through the synchronous wheel.

The rotating shaft is also connected with an elastic seat, and the suction rod of the suction cup is installed on the rotating shaft through the let-down hole on the elastic seat.

In the present invention, another installation method of the longitudinal indentation knife, the transverse indentation knife, the "eight"-shaped indentation die, the longitudinal cutter and the transverse cutter is to be all installed on the template of the die-cutting machine.

With this structure of the present invention, the paper can be folded and welded, and then the bag handle can be adhered to the bag body of the paper bag, and then the bottom and side parts of the bag can be indented, and cut by the cutting mechanism. After cutting, the excess paper is removed, and finally the paper is sent to the forming mechanism to be formed into a paper three-dimensional bag. The whole set of equipment is completed in one go, and the forming efficiency is high. Apply the effect.

Description of drawings

The relevant details of the present invention are further described below in conjunction with the accompanying drawings;

Fig. 1 is the whole machine structure diagram of the first embodiment of the present invention;

Fig. 2 is the structure diagram of the folding, welding and flanging mechanism of the present invention;

Fig. 3 is the structural diagram of the cutting mechanism of the present invention;

Fig. 4 is the structure diagram of the first embodiment of the bag handle bonding mechanism of the present invention;

Fig. 5 is the structure diagram of the other side of Fig. 4 of the bag handle bonding mechanism of the present invention;

6 is a side structural view of the bag handle bonding mechanism of the present invention;

Fig. 7 is the structure diagram of the heat sealing mechanism of the present invention;

Fig. 8 is the installation structure diagram of the longitudinal creasing knife of the present invention;

Fig. 9 is the installation structure diagram of the transverse indentation knife of the present invention;

Fig. 10 is the arrangement structure diagram of the indentation knife of the transverse indentation mechanism of the present invention;

11 is a structural diagram of an octagonal indentation die of the present invention;

Fig. 12 is the structural diagram of the longitudinal cutter of the present invention;

Fig. 13 is the structural diagram of the transverse cutter of the present invention;

Fig. 14 is the structure diagram after the combination of two transverse cutters of the present invention;

Figure 15 is a structural diagram of a waste rejection mechanism provided on the tool holder of the transverse cutter of the present invention;

Fig. 16 is the structure diagram of the rejecting mechanism of the present invention;

Figure 17 is a schematic diagram before paper processing;

Figure 18 is a schematic diagram after the paper is folded;

Fig. 19 is the schematic diagram after paper folding and welding;

Fig. 20 is the schematic diagram after paper flanging;

Figure 21 is a schematic diagram of paper cutting out an "L"-shaped cut;

Fig. 22 is the schematic diagram after paper wrapping;

Fig. 23 is the schematic diagram that the bag handle is about to be inserted between the flange and the bag body after being bent;

Figure 24 is a schematic diagram of the bag handle being welded on the bag body;

Fig. 25 is the schematic diagram after the flanging and the bag body are heat-sealed;

Figure 26 is a schematic diagram of the bottom of the bag bottom after indentation;

Figure 27 is a schematic view of the bag body side after indentation;

Figure 28 is a schematic diagram of the "eight"-shaped indentation line of the bottom indentation of the bag bottom;

Figure 29 is a schematic diagram after longitudinal cutting of paper;

Figure 30 is the schematic diagram after the paper is cut horizontally;

Figure 31 is a schematic diagram after the excess paper is rejected;

Figure 32 is a structural diagram of a paper three-dimensional bag after molding;

33 is a structural diagram of a complete machine according to Embodiment 2 of the present invention;

34 is a structural diagram of a gluing device in another embodiment of the bag handle gluing mechanism of the present invention;

Figure 35 is a structural diagram of the bag handle connecting device in the bag handle bonding mechanism of the present invention;

Figure 36 is a structural diagram of a reversing device with a composite paper bag in the bag handle bonding mechanism of the present invention;

Figure 37 is a structural view of another perspective view of the inversion device with a composite paper bag in the bag handle gluing mechanism;

Fig. 38 is a structural diagram of the rejecting mechanism at the output end of the paper of the creasing die-cutting mechanism of the present invention.

Detailed ways

Embodiment 1: Referring to the accompanying drawings, this paper three-dimensional bag forming machine is sequentially provided with a folding mechanism, a welding mechanism, a flanging mechanism 3, a cutting mechanism 4, a hemming mechanism, and a bag handle along with the conveying direction of the paper. Bonding mechanism 6, indentation die-cutting mechanism, waste rejection mechanism and forming mechanism 10, wherein the indentation and die-cutting mechanism has an indentation mechanism 8 and a cutting mechanism 9. The paper is placed on the unwinding shaft 11, and it is pulled, and the edge of the passing paper is folded through the folding plate 1 (as shown in Figure 18); the edge welding mechanism is composed of a pressure roller 22 and an ultrasonic welder For the folded paper, the folded part is placed between the pressure roller 22 and the ultrasonic welder 21. After the pressure roller 22 presses the folded part, the folded edge of the folded part is welded, that is, the crease line is welded. A small part of the paper is welded together with the paper as a whole (as shown in Figure 19); the flanging mechanism 3 has a pair of flanging wheels 31. After the welded paper passes through the pair of flanging wheels 31, it will be folded The unwelded part is then flanged again (as shown in FIG. 20 ) and conveyed to the cutting mechanism 4 , which has an “L”-shaped cutter 42 , which is mounted on the cylinder 41 On the push rod, there is a knife seat 44 matched with the "L" type cutter, and the knife seat 44 is provided with an abdication groove 43 matched with the "L" type cutter 42. When the air cylinder 41 works, push the "L" type cutter After the L"-shaped cutter 42 passes through the escape groove 43, the flanging is cut, even if the flanging part is cut, the flanging part is formed into an "L" cut (as shown in Figure 21); The hemming mechanism has a hemming plate 5, and the paper that has been flanged by the flanging wheel 31, that is, the paper that has a cut on it, is folded again along the traces of the original welding marks (as shown in Figure 22). The paper is then sent to the bag handle bonding mechanism 6. The bag handle bonding mechanism 6 includes a body 68. The body 68 is provided with a bag handle paper tape placing shaft 62, and a bag handle folding device, a tape cutting device 66, a pull The bag handle device 67, the bag handle bending device 69 and the ultrasonic welding head 611, the upper part of the ultrasonic welding head 611 is provided with a pressing block 65 that moves up and down, and the upper end of the ultrasonic welding head 611 is provided with a movable insert plate 64. After the paper tape roll 61 is installed on the placement shaft 62, it is drawn to the bag handle half-folding device by the traction roller. The bag handle half-folding device is composed of a pair of rolling wheels 63. Between the wheels 63, the paper tape is folded in half, and then sent to the tape cutting device 66 through the traction roller. The tape cutting device 66 has a cutter, and the paper tape sent to this place is cut according to the required length. The belt is then clamped by the gripper of the device 67 through the bag, and the device is transferred through the bag to the top of the ultrasonic welding head 611. After that, the bag handle bending device 69 bends the two ends of the bag handle. Clamp and rotate to form the bag handle into a U-shaped structure. This kind of bag handle bonding mechanism for folding, cutting, transporting, turning and ironing the paper tape is the same as the bag handle bonding mechanism of the non-woven paper bag machine. Before the bag handle needs to be bent, the movable insert plate 64 is inserted into the cut folded edge, and the movement of the insert plate 64 is driven by the insert plate cylinder. The paper of the paper bag body is separated, which is convenient for the bag handle to be inserted; the insert plate 64 is specially designed for the paper bag ironing handle, which is different from the non-woven bag ironing machine in the prior art; when the bag handle bending device 69 After the bag handle is bent and inserted, the insert plate 64 is withdrawn, and then the pressing block 65 above the ultrasonic welding head 611 moves down, pressing the inserted bag handle, the ultrasonic welding head 611 works, and the bag handle is welded on the flip side. Between the folded edge and the bag body (as shown in Figure 24); there are pressure plates 601 at both ends of the ultrasonic welding head 611. The function of the pressure plates 601 is to press the remaining folded edge on one side of the cut after cutting. Keep it in place to avoid upturning, which will affect the bending insertion of the bag handle.

A heat sealing mechanism 7 is further arranged between the bag handle bonding mechanism 6 and the indentation die-cutting mechanism. The heat sealing mechanism 7 has an upper heat sealing plate 71 that moves up and down and a fixed lower heat sealing plate 72 . The paper with the welded bag is sent to the heat-sealing mechanism 7, and the upper heat-sealing plate 71 of the heat-sealing mechanism 7 moves down under the action of the heat-sealing cylinder 73, and heat-seals the folded edge and the paper as a whole (as shown in Figure 25). shown), so that the edge is firmly adhered to the bag body, and the bag body formed later becomes more beautiful.

The creasing mechanism 8 has longitudinal creasing knives 811 and transverse creasing knives 821, which respectively indent the longitudinal and transverse directions of the paper, wherein three longitudinal creasing knives 811 are arranged on the beam 812 in parallel, and are also provided with the longitudinal creasing knives 812. The supporting roller 813 matched with the creasing knife 811, the paper passes between the longitudinal creasing knife 811 and the supporting roller 813 to form an indentation line, and the mark pressed by the longitudinal creasing knife 811 is the creasing line at the bottom of the three-dimensional bag , after the longitudinal creasing knives on both sides indent the paper, the creasing lines L1 and L2 between the bottom of the bag and the side of the paper bag are the creasing lines L1 and L2. In the middle of the indentation line, the indentation line can make the bottom of the paper bag fold inward (as shown in Figure 26). After the longitudinal creasing, the paper is transported to the transverse creasing knives. There are four transverse creasing knives, and the labels are 821a, 821b, 821c, and 821d respectively. On the fixing frame 822, the fixing frame 822 is fixed on a reciprocating first synchronous belt 823, the first synchronous belt 823 is driven by the motor 824, the bottom of the transverse creasing knife 821 is provided with a corresponding support plate 825, Among the four transverse creasing knives 821a, 821b, 821c, and 821d, the wheel frames 829 of the two transverse creasing knives 821a and 821d on both sides are movably mounted on the linear guide rails 826, and the middle two transverse creasing knives. The knives 821b and 821c are installed in a staggered manner one after the other (as shown in FIG. 10 ). The fixing frame 822 has a square groove 828 , and the wheel frame 829 is placed in the square groove 828 . The linear guide 826 is connected to the A screw 827 is screwed together, and the screw threads at both ends of the screw 827 are in opposite directions. By rotating the screw 827, the distance between the lateral creasing knives 821a and 821d on both sides can be adjusted. The holder moves. When the motor 824 works, it makes the synchronous belt 823 move back and forth, so that the four creasing wheels 821 reciprocate in the transverse direction of the paper, and cooperate with the support plate 825 to indent the transverse direction of the paper. The four creasing wheels 821a, 821b , 821c, 821d press out four indentation lines L4, L5, L6, L7, in which the indentation lines L4, L5 are the indentation lines of the previous paper bag, L6, L7 are the indentation lines of the latter paper bag. After conveying, after the indentation is done separately, the two sides of the paper can be indented to become the indentation line of a single paper three-dimensional bag (as shown in Figure 27). Of course, when the bottom of the bag is folded inward, it is not enough to rely on the creasing line. Therefore, the creasing mechanism also includes an "eight"-shaped creasing die 831 at the bottom of the bag, and the creasing die 831 is arranged on the longitudinal creasing knife 811. Between the horizontal indentation knife 821, the "eight"-shaped indentation mold 831 is provided with two pairs, and the installation directions are opposite, which are respectively installed between the longitudinal indentation knife 811 and the transverse indentation knife 821 in tandem. A sponge pad 833 is provided on the bottom plate 832 of the "eight"-shaped indentation die 831, and the sponge pad 833 wraps around the "eight"-shaped indentation die 831. When the upper die 834 descends and contacts the sponge pad 833, the sponge The pad 833 is compressed, exposing the "eight"-shaped indentation mold 831. After the upper mold 834 is completely in place, the two ends of the indentation line at the bottom of the paper bag are indented to form an "eight"-shaped indentation line. And the "eight"-shaped indentation line is symmetrical with the indentation line in the middle of the bottom of the paper bag (as shown in Figure 28). It should be noted that, in the indentation mechanism of the present invention, the positions of the longitudinal indentation, the transverse indentation and the "eight"-shaped indentation can be interchanged, and the effects thereof are also the same. The paper after creasing will be sent to the cutting mechanism 9. The cutting mechanism 9 has longitudinal cutters 911 and transverse cutters 921 and 931. The longitudinal cutters 911 are along the outermost creasing line at the bottom of the paper bag. Cut a part of it (as shown in Figure 29), when the paper is sent to the transverse cutters 921, 931, there are two transverse cutters there, and one cutter 921 is arranged along the leftmost side of the four. The inner side of the indentation line L4 on the side of the paper bag is cut off, the tangent line is L8, and the end point of the indentation is located at the bottom indentation line L1 farther away from it, and another cutter 931 is arranged along the four rightmost indentation lines. The inner side of L6 is cut off, and the end point of the cut is located at the bottom indentation line L2 farther away from it (as shown in Figure 31). This kind of longitudinal and cross-cutting cuts off the excess paper M, and the cut paper is sent to the To the rejecting mechanism, the rejecting mechanism has a rejecting cylinder 932, and a push plate 933 is connected to the piston of the rejecting air cylinder 932. After the rejecting cylinder 932 works, the push plate 933 is pushed, and the push plate 933 cuts the longitudinal cutter and the transverse direction. The paper cut by the cutter is rejected. Wherein, the installation frame 93 of the transverse cutter 921 of the cutting mechanism is provided with a waste rejecting frame 935, and the waste rejecting frame 935 is installed with a waste conveying belt 934 of circulating transmission. The rejected waste paper falls on the waste conveying belt 934, and is conveyed by the conveying belt 934 and then collected.

In the above-mentioned embodiment, the hemming mechanism, the welding mechanism, the flanging mechanism 3, the hemming mechanism, the bag handle bonding mechanism 6 and the heat sealing mechanism 7 are symmetrically arranged on both sides of the whole machine frame, respectively. The symmetrical setting of the mechanism is to fold the two edges of the conveying paper at the same time, weld the edges at the same time, turn the edges at the same time, wrap the edges at the same time, iron the handle at the same time, and heat-seal at the same time. This is determined according to the paper specification and shape when the paper bag is formed. In this way, the whole of the three-dimensional bag can be formed.

The paper after the above treatment is sent to the forming mechanism, which is the same as the forming mechanism of the non-woven three-dimensional bag, and will not be repeated here. After the forming mechanism, the formed paper bag is a paper three-dimensional bag ( as shown in Figure 32).

Embodiment 2: Referring to Figures 33-38, in this embodiment, the indentation mechanism 8 and the cutting mechanism 9 are replaced by an indentation die-cutting mechanism 89a, that is, an indentation and die-cutting machine, that is, in the The longitudinal creasing knife, the transverse creasing knife, the "eight"-shaped creasing die, the longitudinal cutting knife and the transverse cutting knife are installed at the same time, and the waste rejection mechanism is set at the paper output end of the creasing die-cutting machine. A frame 127, a lifting cylinder 128, the lifting frame 127 is connected with a pressing frame 129, a transmission belt 130 is installed on the pressing frame 129, the lifting frame 127 is connected with the lifting cylinder 128, and the rejecting cylinder 932 is installed on the lifting frame 128. On the frame 127 , a push plate 933 is connected to the push rod of the waste rejection cylinder 932 , and a waste conveyer belt 934 for circulating transmission is provided below the waste rejection cylinder 932 . When the paper processed by the creasing die-cutting machine is pulled by the traction belt and reaches the lower part of the transmission belt 130, the lifting cylinder 128 moves, and the lifting frame 127 is lowered, so that the transmission belt 130 on the pressing frame 129 presses the paper, and then the reject cylinder 932 moves. , with the push plate 933 to push the excess paper processed by the creasing die-cutting machine, and push the excess paper to the waste conveying belt 934 to be sent away. The bag handle bonding mechanism includes a gluing device 100 and a bag handle connecting device. The bag handle connecting device includes a body 68 on which a bag handle paper tape placement shaft 62 is installed, and the paper tape is installed in the body 68 to be folded in half The device, the tape cutting device, the bag handle device, the bag handle bending device and the paper tape compound device; wherein the paper tape folding device, the tape cutting device, the bag pulling device, and the bag handle bending device are the same as those in the first embodiment, no longer required. To repeat; the gluing device 100 includes a gluing tank 101, a gluing wheel 102 and a gluing roller 103 that can be moved back and forth. The synchronizing wheel 104 is eccentrically hinged, and the other end thereof is eccentrically hinged with the upper synchronizing wheel 106. The lower synchronizing wheel 104 and the upper synchronizing wheel 106 are connected by a synchronous belt drive. When the motor 107 is working, it can drive the upper rubber roller 103 to move left and right and move up and down. After the upper rubber roller 103 moves in contact with the upper rubber roller 102, the upper rubber roller 103 is glued to the upper rubber roller 102 and taken away from the glue tank 101. After moving, it contacts with the paper passing under it, and transfers the glue on the gluing roller 103 to the paper; the paper tape compounding device includes a compound paper tape placing shaft 114, a traction wheel 116, and a tape cutting device 115. and a composite paper tape turning device; the composite paper tape turning device includes a suction cup 125, a rotating shaft 124, a lifting seat 123, the suction cup 125 is installed on the rotating shaft 124, and the rotating shaft 124 is rotatably installed on the on the lift seat 123, and the two ends of the rotating shaft 124 are located in the "S"-shaped limiting groove 133, the lift seat 123 is fixed on the second timing belt 120, and the second timing belt 120 passes through the synchronization The wheel is driven by the lift motor 121 ; the rotating shaft 124 is also connected with an elastic seat 126 , and the suction rod of the suction cup 125 is installed on the rotating shaft 124 through the abdication hole on the elastic seat 126 . In this implementation, the flanging mechanism 3 , the cutting mechanism 4 and the hemming mechanism of the first embodiment are cancelled, and the heat sealing mechanism 7 is cancelled. The specific forming method of the paper bag is as follows: the paper is folded and welded as in the first embodiment. The folded edge described in this embodiment has a much smaller folded width than After the edges are welded, that is, they are all welded with the paper bag body, and the unwelded part will not be left as in the first embodiment; the paper after all the welded edges is sent to the bag, and the gluing device 100 of the bonding mechanism will be The two edges of the paper are glued. After the glued paper is attached to the bag handle connection device, the paper tape 61 placed on the paper tape placing shaft 62 is folded in half, the tape is cut, the bag handle is pulled, and the bag is bent. Connected to the paper, the mechanical structure of this part is the same as in the first embodiment. After the bag handle is connected to the paper, the paper tape 113 on the composite paper tape placement shaft 114 is pulled by the pulling wheel 116 and then cut by the cutter of the paper cutting tape device 115, and the paper tape falls into the groove formed by the side plate 117 after being cut off. Inside, it is supported by the support strip 119 on the side plate 117. At this time, the lifting motor 121 operates, and the lifting seat 123 is driven to rise by the second synchronous belt 120. During the lifting of the lifting seat 123, the rotating shaft 124 is in the "S" shape limit. The position slot 133 rises and rotates 180° at the same time, so that the suction cup 125 on the rotating shaft 124 rotates 180°, so that the suction cup sucks the paper tape in the groove, and then the lifting motor 121 is reversed, so that the lifting seat 123 is lowered, and the suction cup 125 Rotate 180º, and place the paper tape sucked by the suction cup 125 on the gluing position of the paper. After the negative pressure of the suction cup 125 disappears, the paper tape falls on the gluing position. 126 descends, and the suction cup 125 is retracted into the space due to the action of the abdication hole, so that the elastic seat 126 is pressed on the paper tape, and the paper tape and the glued paper are pressed and bonded, so that the bag Both sides of the handle are bonded with paper, so that the adhesive force of the bag handle is even, and the firmness of the bag handle is maintained. Font-shaped indentation, longitudinal cutting and transverse cutting are formed into the shape required for forming paper bag paper, and finally formed into a three-dimensional bag through the paper bag forming mechanism. This forming method is simpler and more accurate than Embodiment 1. Production efficiency is higher.

Claims (17)

1. A paper three-dimensional bag forming machine is characterized in that a folding mechanism, an edge welding mechanism, a bag handle binding mechanism (6), an indentation die cutting mechanism, a waste removing mechanism and a forming mechanism (10) are sequentially arranged along the conveying direction of paper, the edge folding mechanism consists of edge folding plates (1), the edge welding mechanism consists of a pressing wheel (22) and an ultrasonic welder (21), the indentation die cutting mechanism is provided with a longitudinal indentation knife (811), a transverse indentation knife (821) and an inverted V-shaped indentation die (831) which respectively indentation the longitudinal direction and the transverse direction of the paper, and a splayed indentation line is pressed at the longitudinal indentation line, the indentation die cutting mechanism is also provided with a longitudinal cutter and a transverse cutter, the waste removing mechanism is provided with a waste removing cylinder (932), a push plate (933) is connected to a piston of the waste rejecting cylinder (932) to reject the paper cut by the longitudinal cutter (911) and the transverse cutter (921).

2. The paper three-dimensional bag forming machine according to claim 1, characterized in that a flanging mechanism (3), a cutting mechanism (4) and a taping mechanism are sequentially arranged between the edge welding mechanism and the bag handle bonding mechanism, the flanging mechanism is provided with a pair of flanging wheels (31), the cutting mechanism (4) is provided with an L-shaped cutter (42) for cutting a flanging, and the taping mechanism is provided with a taping plate (5).

3. The machine for forming paper three-dimensional bags according to claim 2, characterized in that a heat-sealing mechanism (7) is further provided between the bag handle bonding mechanism (6) and the creasing and die-cutting mechanism, and the heat-sealing mechanism has an upper heat-sealing plate (71) moving up and down and a lower heat-sealing plate (72) fixed.

4. The three-dimensional paper bag forming machine according to claim 1, wherein the waste removing mechanism is arranged on a mounting frame (93) of the transverse cutter of the indentation die-cutting mechanism, the waste removing mechanism is provided with a waste removing frame (935), the waste removing frame (935) is arranged on the mounting frame (93), and a waste conveying belt (934) in circulating transmission is arranged on the waste removing frame (935).

5. The paper three-dimensional bag forming machine according to claim 4, characterized in that the waste removing mechanism is located at one end of the paper output of the indentation die cutting mechanism, and is further provided with a lifting frame (127) and a lifting cylinder (128), the lifting frame (127) is connected with a pressing frame (129), a transmission belt (130) is installed on the pressing frame (129), the lifting frame (127) is connected with the lifting cylinder (128), the waste removing cylinder (932) is installed on the lifting frame (127), a push plate (933) is connected to a push rod of the waste removing cylinder (932), and a waste conveying belt (934) in circulating transmission is arranged below the waste removing cylinder (932).

6. The three-dimensional paper bag forming machine according to claim 1, wherein the bag handle bonding mechanism (6) comprises a machine body (68), a bag handle paper tape placing shaft (62) is installed on the machine body (68), a paper tape folding device (63), a tape cutting device (66), a bag handle pulling device (67), a bag handle bending device (69) and an ultrasonic welding head (611) are installed in the machine body (68), a pressing block (65) moving up and down is arranged above the ultrasonic welding head (611), and a movable inserting plate (64) is arranged at the upper end of the ultrasonic welding head (611).

7. The machine for forming paper stereo bags according to claim 6, wherein the ultrasonic welding head (611) is provided with a pressing plate (601) at both ends.

8. The machine for forming three-dimensional paper bags according to claim 1, characterized in that said v-shaped creasing die (831) is arranged between said longitudinal (811) and transverse (821) creasing knives.

9. The machine for forming three-dimensional paper bags according to claim 1, characterized in that said longitudinal creasing blade (811) has three parallel support rollers (813) arranged on the cross beam (812) and cooperating with said longitudinal creasing blade (811).

10. The machine for forming three-dimensional paper bags according to claim 1, characterized in that said transverse creasing knives are provided with four and are all mounted on a fixed frame (822) by means of a wheel carriage (829), said fixed frame (822) being fixed on a first synchronous belt (823), said first synchronous belt (823) being driven by a motor (824), the bottom of said transverse creasing knives being provided with a corresponding support plate (825).

11. The machine according to claim 10, characterized in that the four transversal creasing knives (821 a, 821b, 821c, 821 d) are arranged such that the wheel carriers (829) of the two transversal creasing knives (821 a, 821 d) on both sides are movably mounted on the linear guide rail (826), the two middle transversal creasing knives (821 b, 821 c) are mounted in tandem and staggered, the fixed frame has a square slot (828), the wheel carriers (829) are arranged in the square slot (828), and the linear guide rail (826) is screwed with a screw (827).

12. The three-dimensional paper bag forming machine as claimed in claim 1, wherein the bag handle bonding mechanism comprises a gluing device and a bag handle connecting device, the bag handle connecting device comprises a machine body (68), a bag handle paper tape placing shaft (62) is installed on the machine body (68), and a paper tape folding device, a tape cutting device, a bag handle pulling device, a bag handle bending device and a paper tape compounding device are installed in the machine body (68).

13. The three-dimensional paper bag forming machine according to claim 12, wherein the gluing device comprises a glue groove (101), a gluing wheel (102) and a gluing roller (103) capable of moving up and down, the gluing roller (103) is mounted on a swing rod (105), one end of the swing rod (105) is eccentrically hinged with a lower synchronizing wheel (104), the other end of the swing rod is eccentrically hinged with an upper synchronizing wheel (106), the lower synchronizing wheel (104) is connected with the upper synchronizing wheel (106) through synchronous belt transmission, and the upper synchronizing wheel (106) is connected with a gluing motor (107).

14. The three-dimensional paper bag forming machine according to claim 12, wherein the paper tape combining device comprises a combined paper tape placing shaft (114), a traction wheel (116), a paper cutting tape device (115) and a combined paper tape turning device.

15. The three-dimensional paper bag forming machine according to claim 14, wherein the composite paper tape turning device comprises a suction cup (125), a rotating shaft (124) and a lifting seat (123), the suction cup (125) is mounted on the rotating shaft (124), the rotating shaft (124) is rotatably mounted on the lifting seat (123), two ends of the rotating shaft (124) are located in an S-shaped limiting groove (133), the lifting seat (123) is fixed on a second synchronous belt (120), and the second synchronous belt (120) is driven by a lifting motor (121) through a synchronous wheel.

16. The three-dimensional paper bag forming machine according to claim 15, wherein an elastic seat (126) is further connected to the rotating shaft (124), and a suction rod of the suction cup (125) passes through an offset hole on the elastic seat (126) and is mounted on the rotating shaft (124).

17. The three-dimensional paper bag forming machine according to claim 1, wherein the longitudinal creasing blade, the transverse creasing blade, the splayed creasing die, the longitudinal cutter and the transverse cutter are all mounted on a die plate of a die cutting machine.

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