Trapezoidal paper bag making machine

Abstract

The utility model relates to a trapezoidal paper bag making machine. The device comprises an upper-layer paper feeding mechanism, a lower-layer paper feeding mechanism, an upper-lower layer closing feeding mechanism, a splayed gluing device, a splayed pressing and edge sealing device and a splayed edge cutting and bag separating device, wherein the splayed gluing device is used for gluing the inner side of a paper surface corresponding to the side edge of a bag body; the splayed pressing and edge sealing device is used for pressing and sealing the side edge corresponding to the position of the glued side edge to form a bag; the splayed edge cutting and bag separating device is used for cutting the side edge of the bag body corresponding to the position of the side edge of the bag body; the upper-layer paper feeding mechanism and the lower-layer paper feeding mechanism are connected with the upper-layer and lower-layer closing feeding mechanism respectively, the splayed gluing device is connected to a feeding path of the upper-layer paper feeding mechanism and / or the lower-layer paper feeding mechanism, and the splayed pressing and edge sealing device is connected to a feeding path of the upper-layer and lower-layer closing feeding mechanism. The splayed edge cutting and bag distributing device is connected to the output end of the upper-layer and lower-layer closing and feeding mechanism. Trapezoidal paper bags with ports reserved at two ends of bag bodies can be manufactured, requirements on the paper bags can be met, images and texts can be printed on the surfaces of paper materials, and even the paper materials are directly connected in series with printing components in a bag making machine and then are subjected to edge cutting and bag separation.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bag making machine. BACKGROUND

[0002] Paper bag bodies are currently widely used in various fields, and have relatively small burden on the environment and are more environmentally friendly. Paper bags of different structural types have different uses. Designing and manufacturing more types of paper bag structures can meet more needs. INVENTION CONTENTS

[0003] In view of the technical problems in the background art, the utility model aims to provide a trapezoidal paper bag making machine with port left at both ends of the bag body.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a trapezoidal paper bag making machine, comprising an upper layer paper feeding mechanism, a lower layer paper feeding mechanism, an upper and lower layer converging feeding mechanism, an eight-shaped gluing device corresponding to the bag body side edge position on the inner side of the paper surface, an eight-shaped pressing and edge sealing device corresponding to the gluing side edge position for pressing and edge sealing to form a bag, and an eight-shaped edge cutting and bag separating device corresponding to the bag body side edge position for cutting, characterized in that: the upper layer paper feeding mechanism and the lower layer paper feeding mechanism are respectively connected with the upper and lower layer converging feeding mechanism, the eight-shaped gluing device is connected on the feeding path of the upper layer paper feeding mechanism and / or the lower layer paper feeding mechanism, the eight-shaped pressing and edge sealing device is connected on the feeding path of the upper and lower layer converging feeding mechanism, and the eight-shaped edge cutting and bag separating device is connected at the output end of the upper and lower layer converging feeding mechanism.

[0005] The above technical solutions can also be variously optimized or supplemented as follows.

[0006] For example, it also comprises a paper material unwinding mechanism, which is connected with the upper layer paper feeding mechanism and the lower layer paper feeding mechanism.

[0007] For example, the paper material unwinding mechanism comprises an upper layer paper unwinding device and a lower layer paper unwinding device, the upper layer paper unwinding device is connected with the upper layer paper feeding mechanism, and the lower layer paper unwinding device is connected with the lower layer paper feeding mechanism.

[0008] For example, the upper layer paper unwinding device comprises a first unwinding frame, the first unwinding frame is provided with a first traction feeding device, a first floating storage device is arranged between the first traction feeding device and the upper and lower layer converging feeding mechanism; the lower layer paper unwinding device comprises a second unwinding frame, the second unwinding frame is provided with a second traction feeding device, a second floating storage device is arranged between the second traction feeding device and the upper and lower layer converging feeding mechanism; the lower layer paper feeding mechanism has a translational feeding section between the second floating storage device and the upper and lower layer converging feeding mechanism, the eight-shaped gluing device is arranged on the upper side of the translational feeding section, and the upper layer paper feeding mechanism converges from the upper side to the output side of the lower layer paper feeding mechanism.

[0009] For example, the eight-shaped gluing device is provided with a left gluing component and a right gluing component which are arranged in an eight-shaped gluing mode on the material; the eight-shaped edge pressing device is provided with a left lifting edge pressing component and a right lifting edge pressing component which are arranged in an eight-shaped edge pressing mode on the material, and the edge pressing component further comprises a bottom support which is arranged below the left lifting edge pressing component and the right lifting edge pressing component, and the bottom support and the left lifting edge pressing component and the right lifting edge pressing component above the bottom support are arranged in an up-down layering mode and form a material conveying path of the up-down layering material conveying mechanism; the eight-shaped edge cutting and bagging device is provided with a left side up-down opening and closing cutter component and a right side up-down opening and closing cutter component which are arranged in an eight-shaped edge cutting and bagging mode on the material.

[0010] For example, the eight-shaped gluing device is provided with a left gluing component and a right gluing component which are arranged in an eight-shaped gluing mode on the material; the eight-shaped edge pressing device is provided with a left lifting edge pressing component and a right lifting edge pressing component which are arranged in an eight-shaped edge pressing mode on the material, and the edge pressing component further comprises a bottom support which is arranged below the left lifting edge pressing component and the right lifting edge pressing component, and the bottom support and the left lifting edge pressing component and the right lifting edge pressing component above the bottom support are arranged in an up-down layering mode and form a material conveying path of the up-down layering material conveying mechanism; the eight-shaped edge cutting and bagging device is provided with a left side up-down opening and closing cutter component and a right side up-down opening and closing cutter component which are arranged in an eight-shaped edge cutting and bagging mode on the material.

[0011] In addition, the up-down layering material conveying mechanism comprises an output end and a converging and layering guide-in end, and the output end of the up-down layering material conveying mechanism is provided with a material conveying traction conveying device.

[0012] For example, the material conveying traction conveying device comprises an intermittent fixed-length traction component, the intermittent fixed-length traction component comprises an upper roller and a lower roller, and the upper roller and the lower roller are arranged in a material clamping and conveying position; and the converging and layering guide-in end is provided with a guide-in roller.

[0013] In addition, the eight-shaped edge cutting and bagging device further comprises a material collecting table, the material collecting table comprises an upper layer material collecting conveying belt and a lower layer material collecting conveying belt, the upper layer material collecting conveying belt is arranged on the front side of the eight-shaped edge cutting and bagging device, the lower layer material collecting conveying belt is arranged below the eight-shaped edge cutting and bagging device, and the eight-shaped edge cutting and bagging device is located between the upper layer material collecting conveying belt and the up-down layering material conveying mechanism.

[0014] For example, the eight-shaped edge cutting and bagging device is provided with a left gluing component and a right gluing component which are arranged in an eight-shaped gluing mode on the material; the eight-shaped edge pressing device is provided with a left lifting edge pressing component and a right lifting edge pressing component which are arranged in an eight-shaped edge pressing mode on the material, and the edge pressing component further comprises a bottom support which is arranged below the left lifting edge pressing component and the right lifting edge pressing component, and the bottom support and the left lifting edge pressing component and the right lifting edge pressing component above the bottom support are arranged in an up-down layering mode and form a material conveying path of the up-down layering material conveying mechanism; the eight-shaped edge cutting and bagging device is provided with a left side up-down opening and closing cutter component and a right side up-down opening and closing cutter component which are arranged in an eight-shaped edge cutting and bagging mode on the material.

[0015] The trapezoidal paper bag making machine can make trapezoidal paper bags with two ends of the bag body being left with ports, and can be used for bouquet packaging and the like, is relatively environmentally friendly in that paper material is used, has a paper texture, is relatively convenient to use, can meet the market demand for such paper bags, and the surface of the paper material can be printed with graphics and texts, or even directly printed after a printing component is connected in series in the bag making machine. BRIEF DESCRIPTION OF DRAWINGS

[0016] The relevant details and working principles of the embodiments and the implementation of the present application will be described below in conjunction with the accompanying drawings.

[0017] Figure 1 The figure is a structural schematic diagram of the trapezoidal paper bag making machine in the present application.

[0018] Figure 2 The figure is a process schematic diagram of the trapezoidal paper bag making machine in the present application, in which the material is folded after being folded up and down, and then is formed into a front and back bag body through eight-shaped gluing, pressing and edge sealing, and edge cutting, wherein A corresponds to eight-shaped gluing, B corresponds to the first eight-shaped pressing and edge sealing, C corresponds to the second eight-shaped pressing and edge sealing, and D corresponds to eight-shaped edge cutting and bag separation.

[0019] In the figure: 1, upper layer paper feeding mechanism; 2, lower layer paper feeding mechanism; 20, translation feeding section; 3, upper and lower layer folding feeding mechanism; 30, feeding traction conveying device; 31, merging and folding introduction end; 32, intermittent fixed-length traction component; 35, introduction roller; 4, eight-shaped gluing device; 41, left gluing component; 42, right gluing component; 5, eight-shaped pressing and edge sealing device; 50, bottom support; 51, left lifting pressing and edge sealing component; 52, right lifting pressing and edge sealing component; 6, eight-shaped edge cutting and bag separation device; 61, left side up and down opening and closing cutter component; 62, right side up and down opening and closing cutter component; 7, paper feeding unwinding mechanism; 71, upper layer paper unwinding device; 72, lower layer paper unwinding device; 73, first traction feeding device; 74, second traction feeding device; 75, first floating material storage device; 76, second floating material storage device; 8, material receiving table; 81, upper layer material receiving conveying belt; 82, lower layer material receiving conveying belt; 9, auxiliary material supporting component. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments, and all the other embodiments obtained by those skilled in the art without creative labor based on the embodiments in the present application belong to the scope of protection of the present application.

[0021] Referring to the accompanying drawings, the trapezoidal paper bag making machine in the embodiments of the present embodiment includes an upper layer paper feeding mechanism 1, a lower layer paper feeding mechanism 2, an upper and lower layer folding feeding mechanism 3, an eight-shaped gluing device 4 for gluing on the inside of the paper surface corresponding to the side edge position of the bag body, an eight-shaped pressing and edge sealing device 5 for pressing and edge sealing into a bag corresponding to the gluing side edge position, and an eight-shaped edge cutting and bag separation device 6 for cutting corresponding to the side edge position of the bag body.

[0022] Wherein, the upper layer paper feeding mechanism 1 is used for arranging the feeding of the upper layer paper, the lower layer paper feeding mechanism 2 is used for arranging the feeding of the lower layer paper, and the upper and lower layer paper feeding mechanism 3 is used for arranging the feeding of the upper and lower layer paper. They can be configured with corresponding guide rollers for material arrangement feeding.

[0023] Wherein, the upper layer paper feeding mechanism 1 and the lower layer paper feeding mechanism 2 are connected with the upper and lower layer paper feeding mechanism 3 respectively, that is, the materials in the upper layer paper feeding mechanism 1 and the lower layer paper feeding mechanism 2 will be combined into the upper and lower layer paper feeding mechanism 3 for feeding operation.

[0024] Wherein, the eight-shaped glue applying device 4 is connected with the feeding path of the upper layer paper feeding mechanism 1 and / or the lower layer paper feeding mechanism 2, and the eight-shaped glue applying device 4 can apply glue to the inner side of the paper surface of the upper layer paper and / or the lower layer paper, so that the upper layer paper and the lower layer paper can be glued and pasted face to face when they are combined together. The eight-shaped glue applying device 4 applies glue to the position corresponding to the side edge of the bag on the inner side of the paper surface, that is, the position of the glue application is just the position of the side edge of the bag, and the position of the glued and pasted is the position of the side edge of the bag, and the side edge separates the bags from each other.

[0025] Wherein, the eight-shaped pressing and sealing edge device 5 is connected with the feeding path of the upper and lower layer paper feeding mechanism 3, and the eight-shaped pressing and sealing edge device 5 can press and seal the corresponding glue application side edge position (that is, the position of the glue application corresponding to the side edge of the bag) between the upper layer paper and the lower layer paper, to ensure the glue sealing, so that the upper layer paper and the lower layer paper can be smoothly glued and pasted to form the side edge of the bag, and the side edge separates the continuous bags into separate areas.

[0026] Wherein, the eight-shaped edge cutting and bag separating device 6 is connected with the output end of the upper and lower layer paper feeding mechanism 3. After the continuous bags are output from the upper and lower layer paper feeding mechanism 3, the eight-shaped edge cutting and bag separating device 6 cuts and separates the side edge position of the bag, and the edge cutting and bag separating forms independent bag units.

[0027] Wherein, the eight-shaped refers to the left and right side edges (corresponding to the waist edge of the trapezoidal paper bag) of the trapezoidal paper bag, and the upper layer paper and the lower layer paper correspond to the bag wall of the trapezoidal paper bag. The two ends are open structure ports (in an unsealed state).

[0028] The trapezoidal paper bag making machine can make trapezoidal paper bags with ports at both ends, which can be used for bouquet packaging, etc. The use of paper material is relatively environmentally friendly, has a paper texture, and is relatively convenient to use, which can meet the needs of such paper bags, and the surface of the paper material can be printed with graphics and text, or even directly after connecting the printing component in the bag making machine.

[0029] Based on the above embodiments, the following optimizations or further explanations can also be made.

[0030] For example, the trapezoidal paper bag making machine further comprises a paper material unwinding mechanism 7 connected with the upper layer paper feeding mechanism 1 and the lower layer paper feeding mechanism 2, through which the continuous paper material can be unwound and supplied to the corresponding upper layer paper feeding mechanism 1 and lower layer paper feeding mechanism 2, that is, the material is fed, glued, and edge-pressed and sealed in a continuous state, and is finally cut and separated, which is convenient for paper supply and paper feeding.

[0031] For example, the paper material unwinding mechanism 7 comprises an upper layer paper unwinding device 71 and a lower layer paper unwinding device 72, the upper layer paper unwinding device 71 is connected with the upper layer paper feeding mechanism 1, and the lower layer paper unwinding device 72 is connected with the lower layer paper feeding mechanism 2, which are respectively arranged to correspond to and independently pair with unwinding and feeding, and the structure is relatively more stable.

[0032] For example, the upper layer paper unwinding device 71 comprises a first unwinding frame provided with a first traction feeding device 73 (such as a traction motor and a traction roller), and a first floating storage device 75 (such as an arm floating frame with rollers) is arranged between the first traction feeding device 73 and the upper and lower layer parallel feeding mechanism 3. The lower layer paper unwinding device 72 comprises a second unwinding frame provided with a second traction feeding device 74 (such as a traction motor and a traction roller), and a second floating storage device 76 (such as an arm floating frame with rollers) is arranged between the second traction feeding device 74 and the upper and lower layer parallel feeding mechanism 3. In this structure, the unwinding traction feeding can be carried out without stopping during operation, and the corresponding floating storage device can be matched with floating storage and material release, which can match the subsequent intermittent stop feeding to cooperate with gluing, pressing and sealing, and even edge cutting and bagging. The lower layer paper feeding mechanism 2 has a translation feeding section 20 between the second floating storage device 76 and the upper and lower layer parallel feeding mechanism 3, and the upper layer paper feeding mechanism 1 converges from the upper side to the output side of the lower layer paper feeding mechanism 2. The lower layer paper feeding is relatively flat and stable, and even can be directly horizontally fed. The eight-shaped gluing device 4 is arranged on the upper side of the translation feeding section 20, which is beneficial to the smooth gluing of the upper side of the lower layer paper in the lower layer paper feeding mechanism 2 and the direct gluing and pasting of the upper layer paper after gluing, and the glue is not easy to dirty the equipment; the eight-shaped gluing device 4 can be used for gluing by means of glue gun spraying, glue printing or glue brushing, etc., for example, the glue gun spraying can be used for spraying glue at the side position in a back-and-forth oblique direction.

[0033] Further optimization includes the following configurations: a figure-eight gluing device 4 with separate bag gluing operation, a figure-eight pressing and sealing device 5 with separate bag pressing and sealing, and a figure-eight cutting and separating device 6 with separate bag cutting and separating. This combination structure offers relatively high efficiency. The bags are processed with gaps between them (i.e., separate bags). On the continuous roll material, a corresponding figure-eight gluing, pressing and sealing, and cutting and separating are performed at intervals of one bag unit. This allows for the formation of a series of alternating bags on the continuous roll material. Then, through a single cutting and separating process, two independent separate bag units are formed, creating two bags in one operation.

[0034] For example, the figure-eight gluing device 4 includes a left gluing component 41 and a right gluing component 42 that are arranged in a figure-eight gluing configuration on the material. The left gluing component 41 and the right gluing component 42 can be respectively equipped with glue guns that move back and forth at an angle (forward and backward), and can use environmentally friendly glue. The figure-eight sealing device 5 includes a left lifting sealing component 51 and a right lifting sealing component 52 arranged in a figure-eight shape in terms of material. The left lifting sealing component 51 and the right lifting sealing component 52 can respectively adopt pressure strips with lifting action arranged in a (positive and negative) oblique direction. The sealing component also includes a base 50 (such as a bottom plate). The base 50 is arranged below the left lifting sealing component 51 and the right lifting sealing component 52. The bottom 50 and the left lifting sealing component 51 and the right lifting sealing component 52 above it form the material path of the upper and lower layer parallel feeding mechanism 3. When the left lifting sealing component 51 and the right lifting sealing component 52 descend, they can press on the base 50 to seal the corresponding glued side position between the upper and lower paper (i.e., the glued side position of the bag body). The figure-eight sealing device 5 can have one or more layers, and even the first layer, the left lifting sealing component 51 and the right lifting sealing component 52, can have heating components (such as electric heating wires), resulting in a higher adhesive effect. The subsequent layers do not require heating. The figure shows two layers; the first layer has a heating function, while the second layer does not. This design is compact, efficient, and ensures a strong adhesive bond. The figure-eight cutting and bag-separating device 6 includes a left upper and lower opening and closing cutter component 61 and a right upper and lower opening and closing cutter component 62, which are arranged in a figure-eight shape to cut and separate the bag. The left and right upper and lower opening and closing cutter components 62 each have corresponding upper and lower cutters that open and close to cooperate with the left and right sides of the bag. The left and right upper and lower opening and closing cutter components 62 are arranged diagonally (front and back); for example, the upper cutter moves up and down on the cutter holder, and the lower cutter is fixed on the cutter holder. The upper and lower cutters can be straight cutters. Furthermore, the left and right spacing and angle positions in the above figure-eight structure can be set or adjusted according to requirements, which can meet the needs of more paper bag sizes and specifications.

[0035] The upper and lower layer material converging and feeding mechanism 3 comprises an output end and a converging and feeding end 31. The output end of the upper and lower layer material converging and feeding mechanism 3 is provided with a material feeding and pulling conveying device 30, which pulls and conveys the material to the output end. For example, the material feeding and pulling conveying device 30 comprises an intermittent fixed-length pulling component 32, which can pull and convey the material in an intermittent fixed-length manner, such as pulling and conveying two bag-length paper materials at a time. For example, the intermittent fixed-length pulling component 32 comprises an upper roller and a lower roller, which can be driven by a corresponding motor 34 (such as a servo motor) to run. The upper roller and the lower roller are in a material clamping and conveying position, and the upper roller and the lower roller clamp the material for conveying. The converging and feeding end 31 is provided with a feeding roller 35, which facilitates the convergence and feeding of the material.

[0036] In addition, the trapezoidal paper bag making machine further comprises a material collecting table 8, which facilitates the collection of finished trapezoidal paper bags.

[0037] For example, the material collecting table 8 comprises an upper layer material collecting conveying belt 81 and a lower layer material collecting conveying belt 82. The upper layer material collecting conveying belt 81 is arranged on the front side of the eight-shaped edge cutting and bag separating device 6, and the lower layer material collecting conveying belt 82 is arranged below the eight-shaped edge cutting and bag separating device 6. The structure of the material collecting table 8 can stagger the upper and lower layers for simultaneous material collection, and can stagger the two bag units of the positive and negative bags for simultaneous material collection after the cutting and bag separating process. The eight-shaped edge cutting and bag separating device 6 is located between the upper layer material collecting conveying belt 81 and the upper and lower layer material converging and feeding mechanism 3. When running, the upper and lower layer materials after being glued and edge sealed have a plurality of positive and negative bags connected in an alternating manner. After being output from the output end of the upper and lower layer material converging and feeding mechanism 3, the bags (such as kraft paper and other materials with relatively good paper strength and stiffness) can pass through the eight-shaped edge cutting and bag separating device 6 (such as the left and right upper and lower open and close cutter components 61 and 62 in the separated state) by means of the strength and stiffness of the bags. One of the bags on the front side of the eight-shaped edge cutting and bag separating device 6 can be conveyed by the upper layer material collecting conveying belt 81, and the other bag in the eight-shaped edge cutting and bag separating device 6 (such as between the left and right upper and lower open and close cutter components 61 and 62) can be conveyed by the lower layer material collecting conveying belt 82. The eight-shaped edge cutting and bag separating device 6 cuts the two bags, and the upper and lower layer material collecting conveying belts 81 and 82 simultaneously convey the materials.

[0038] The left and right cutters (i.e. the left upper and lower opening and closing cutter components 61 and the right upper and lower opening and closing cutter components 62) of the eight-shaped edge cutting and bagging device 6 are also provided with auxiliary material supporting components 9 (such as auxiliary material supporting plates, which can even be slightly tilted towards the output direction) for material output matching. The auxiliary material supporting components 9 are arranged between the left upper and lower opening and closing cutter components 61 and the right upper and lower opening and closing cutter components 62 of the eight-shaped edge cutting and bagging device 6. The auxiliary material supporting components 9 can cooperate to support the material, and the output material can smoothly pass through the eight-shaped edge cutting and bagging device 6. Compared with relying only on the strength and stiffness of the bag body, the operation is more stable. Then the auxiliary material supporting components 9 can be moved away to avoid falling of one of the bag bodies cut by the edge cutting and bagging to the lower layer of the material receiving conveyor 82. The auxiliary material supporting components 9 are in transmission connection with the forward material supporting and backward avoiding translation driving components (such as motors or cylinders, etc.), which drive the auxiliary material supporting components 9 to move back and forth (such as Figure 1 the inside and outside directions of the Korean-Chinese drawing), the auxiliary material supporting components 9 are in the supporting state when they are advanced, and in the avoiding state (to avoid the falling of the bag body) when they are retreated. The auxiliary material supporting components 9 are above the lower layer of the material receiving conveyor 82. In addition, the color code electric eye 36 can be coupled with the material pulling and conveying device 30 (such as its motor) to operate the material pulling and conveying device 30 to run more accurately. The edge trimming cutter 33 can also be configured to trim the edges of the bag port. The edge trimming cutter is arranged between the material pulling and conveying device 30 and the eight-shaped edge pressing and sealing device 5.

Claims

1. A trapezoidal paper bag making machine, comprising an upper layer paper feeding mechanism (1), a lower layer paper feeding mechanism (2), an upper and lower layer converging feeding mechanism (3), an eight-shaped glue applying device (4) for applying glue on the inner side of the paper corresponding to the side edge position of the bag, an eight-shaped pressing and edge sealing device (5) for pressing and edge sealing corresponding to the glued side edge position to form a bag, and an eight-shaped edge cutting and bag separating device (6) for cutting corresponding to the side edge position of the bag, characterized in that: the upper layer paper feeding mechanism (1) and the lower layer paper feeding mechanism (2) are respectively connected with the upper and lower layer converging feeding mechanism (3), the eight-shaped glue applying device (4) is connected in the feeding path of the upper layer paper feeding mechanism (1) and / or the lower layer paper feeding mechanism (2), the eight-shaped pressing and edge sealing device (5) is connected in the feeding path of the upper and lower layer converging feeding mechanism (3), the eight-shaped edge cutting and bag separating device (6) is connected at the output end of the upper and lower layer converging feeding mechanism (3).

2. The machine for making trapezoidal paper bags according to claim 1, characterized in that: It also comprises a paper material unwinding mechanism (7), which is respectively connected with the upper layer paper feeding mechanism (1) and the lower layer paper feeding mechanism (2).

3. A machine for making trapezoidal paper bags as claimed in claim 1 or 2, characterized in that: The paper material unwinding mechanism (7) comprises an upper layer paper unwinding device (71) and a lower layer paper unwinding device (72), the upper layer paper unwinding device (71) is connected with the upper layer paper feeding mechanism (1), the lower layer paper unwinding device (72) is connected with the lower layer paper feeding mechanism (2).

4. The trapezoidal paper bag making machine according to claim 3, characterized in that: the upper layer paper unwinding device (71) comprises a first unwinding frame, which is provided with a first traction feeding device (73), and a first floating storage device (75) is arranged between the first traction feeding device (73) and the upper and lower layer converging feeding mechanism (3), the lower layer paper unwinding device (72) comprises a second unwinding frame, which is provided with a second traction feeding device (74), and a second floating storage device (76) is arranged between the second traction feeding device (74) and the upper and lower layer converging feeding mechanism (3), the lower layer paper feeding mechanism (2) has a translation feeding section (20) between the second floating storage device (76) and the upper and lower layer converging feeding mechanism (3), the eight-shaped glue applying device (4) is arranged on the upper side of the translation feeding section (20), the upper layer paper feeding mechanism (1) converges from the upper side to the output side of the lower layer paper feeding mechanism (2).

5. The trapezoidal paper bag making machine according to claim 1, characterized in that: the eight-shaped glue applying device (4) is arranged for bag-by-bag glue applying, the eight-shaped pressing and edge sealing device (5) is arranged for bag-by-bag pressing and edge sealing, the eight-shaped edge cutting and bag separating device (6) is arranged for bag-by-bag edge cutting and bag separating.

6. The trapezoidal paper bag making machine according to claim 1 or 5, characterized in that: the eight-shaped glue applying device (4) comprises a left glue applying component (41) and a right glue applying component (42) arranged in an eight-shaped glue applying matching manner on the material. The eight-shaped pressing and sealing edge device (5) comprises a left lifting pressing and sealing edge component (51) and a right lifting pressing and sealing edge component (52) arranged in an eight-shaped pressing and sealing edge cooperation on the material, and further comprises a bottom support (50) arranged below the left lifting pressing and sealing edge component (51) and the right lifting pressing and sealing edge component (52), wherein the bottom support (50) and the left lifting pressing and sealing edge component (51) and the right lifting pressing and sealing edge component (52) above are in a top-and-bottom layer and converging material conveying path mechanism (3) of the material conveying path; The eight-shaped edge cutting and bagging device (6) comprises a left side upper and lower opening and closing cutter component (61) and a right side upper and lower opening and closing cutter component (62) arranged in an eight-shaped edge cutting and bagging cooperation on the material.

7. The trapezoidal paper bag making machine according to claim 1, characterized in that: The top-and-bottom layer and converging material conveying path mechanism (3) comprises an output end and a converging and converging guide end (31), and the output end of the top-and-bottom layer and converging material conveying path mechanism (3) is provided with a material conveying traction conveying device (30).

8. The machine for making trapezoidal paper bags according to claim 7, characterized in that: The material conveying traction conveying device (30) comprises an intermittent fixed-length traction component (32); The intermittent fixed-length traction component (32) comprises an upper roller and a lower roller, and the upper roller and the lower roller are in a clamping cooperation conveying position; The converging and converging guide end (31) has a guide roller (35).

9. The machine for making trapezoidal paper bags according to claim 1 or 5, characterized in that: Further comprising a material receiving table (8), which comprises an upper layer material receiving conveying belt (81) and a lower layer material receiving conveying belt (82), The upper layer material receiving conveying belt (81) is arranged on the front side of the eight-shaped edge cutting and bagging device (6), The lower layer material receiving conveying belt (82) is arranged below the eight-shaped edge cutting and bagging device (6), The eight-shaped edge cutting and bagging device (6) is located between the upper layer material receiving conveying belt (81) and the top-and-bottom layer and converging material conveying path mechanism (3).

10. The trapezoidal paper bag making machine according to claim 9, characterized in that: The eight-shaped edge cutting and bagging device (6) further comprises an auxiliary material supporting component (9) arranged between the left side upper and lower opening and closing cutter component (61) and the right side upper and lower opening and closing cutter component (62) of the eight-shaped edge cutting and bagging device (6) for material output cooperation, The auxiliary material supporting component (9) is in transmission connection with the forward material supporting and backward avoiding translation driving component, and the auxiliary material supporting component (9) is located above the lower layer material receiving conveying belt (82).

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