An automated apparatus and method for producing a gusseted bag

By designing automated equipment for forming, pre-fixing and heat-sealing the reinforcement bags, the problems of low production efficiency and poor consistency of the existing reinforcement bags are solved, and efficient and automated reinforcement bag production is achieved.

CN115384116BActive Publication Date: 2025-10-10SHIJIAZHUANG ZHONGBANG PACKAGING MATERIAL CO LTD

Patent Information

Application Number
CN202210999159.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-19
Publication Date
2025-10-10
Estimated Expiration
2042-08-19

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  • Figure CN115384116B_ABST
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Abstract

The application relates to an automatic production device and method of a gusset bag, and relates to the technical field of a packaging bag production device, and comprises a bag body forming device, the bag body forming device comprises four groups of discharging mechanisms arranged above, below, left and right, which are used for releasing sheet films and surrounding four sides of the bag body; a gusset sheet mounting device is arranged at a discharging end of the bag body forming device, is used for conveying the gusset sheet between two adjacent sheet films, and pre-fixes the gusset sheet and the sheet film; a hot wire edge sealing device is arranged at a discharging end of the gusset sheet mounting device, comprises multiple groups of heating mechanisms, and performs heat sealing on the pre-fixed position of the gusset sheet and the sheet film; and a fixed-length cutting device is arranged at a discharging end of the hot wire edge sealing device, comprises a cutter assembly that can be lifted up and down, and is used for fixed-length cutting of continuous sheet films. The application can reduce manual participation, improve the production quality and efficiency of products, the products can be continuously produced, and the consistency is higher.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of packaging bag production equipment, in particular to an automatic production equipment and production method for a ribbed bag. BACKGROUND

[0002] Ton bag, also known as flexible container bag, container bag, space bag, etc., is a kind of medium bulk container, which is a kind of container unit device. With the crane or forklift, it can realize container unit transportation. It is convenient for loading and transporting bulk powder materials, has the characteristics of large volume, light weight, easy loading and unloading, etc., and is one of the common packaging materials. Its characteristics are simple structure, light weight, foldable, small space occupied when empty, and low price. The ribbed bag is a kind of ton bag, and the position of the rib plate is between the adjacent two film pieces, which is used for better fixing the adjacent two film pieces. After the barrel film is filled with powder, it can keep the shape in quadrilateral, which is convenient for stable stacking.

[0003] The production of the existing ribbed bag is mostly manually made or assisted by auxiliary equipment. The four rib plates used for the ribbed bag are respectively installed at the installation position of the auxiliary equipment, the barrel film previously made is sleeved in the auxiliary equipment, and after alignment, the fusing mechanism is controlled to fuse the barrel film and the rib together. After being taken out from the installation position, the ribbed product is completed. However, this production method has low production efficiency and poor consistency of products produced by manual operation. SUMMARY

[0004] The purpose of the present application is to provide an automatic production equipment and production method for a ribbed bag, which can reduce manual participation, improve the production quality and efficiency of the product, and continuously produce the product with higher consistency.

[0005] In the first aspect, the automatic production equipment for a ribbed bag provided by the present application adopts the following technical scheme:

[0006] An automatic production equipment for a ribbed bag comprises:

[0007] A bag body forming device, which comprises four groups of discharging mechanisms arranged in up-down and left-right directions, and is used for releasing film pieces and surrounding four sides of a bag body;

[0008] A rib plate mounting device arranged at the discharging end of the bag body forming device, which is used for conveying the rib plate between the adjacent two film pieces and pre-fixing the rib plate and the film pieces;

[0009] A rib fusing and edge sealing device arranged at the discharging end of the rib plate mounting device, which comprises a plurality of heating mechanisms and is used for heat sealing the pre-fixed position of the rib plate and the film pieces; and

[0010] A fixed-length cutting device arranged at the discharging end of the rib fusing and edge sealing device, which comprises a cutting knife assembly that can be raised and lowered, and is used for cutting the continuous film pieces in a fixed length.

[0011] By adopting the above technical solution, four groups of unloading mechanisms simultaneously release four sheet film rolls on the upper, lower, left and right sides into the bag forming device to form the preliminary outer contour of the reinforcement bag; the reinforcement sheet installation device transports the reinforcement sheet to the position where the four sheets are connected between the four sheet film rolls, and pre-fixes the four sheets and reinforcement sheets to ensure that the four sheets and reinforcement sheets will not change relative to each other during the transportation process; the initially shaped semi-finished product enters the hot reinforcement edge sealing device, and multiple heating mechanisms heat the position where the four sheets and reinforcement sheets are connected, so that the four sheets and reinforcement sheets are heat-fused together to form a continuous tubular reinforcement bag; the tubular reinforcement bag enters the fixed-length cutting device for fixed-length cutting to form a separate tubular reinforcement bag; the entire production process of the reinforcement bag is carried out by equipment without direct human participation, and the finished products are disassembled and continuously output, which improves the production efficiency of the reinforcement bag, and the cut and formed reinforcement bags are highly consistent, which improves the product quality of the reinforcement bag.

[0012] Optionally, the bag forming device includes a forming bin and a tensioning assembly;

[0013] The unloading mechanism includes an unloading rack and a plurality of conveying rollers for conveying the film into the forming bin;

[0014] The tensioning components are provided in four groups, which are used to tension four film sheets respectively. Each group of tensioning components includes a number of rollers rotatably connected to the inner wall of the forming bin and a number of pressure rollers staggered with the rollers.

[0015] By adopting the above technical solution, the conveyor roller transports the four film rolls to the forming bin for arrangement and forming, which facilitates the subsequent production process and improves the efficiency of the entire equipment. The four film sheets are tensioned by the tensioning component so that the film sheets can be fully stretched. The four sides of the produced lacing bag are consistent in length and the load tensile strength is evenly distributed.

[0016] Optionally, the bag forming device further comprises a folding mechanism for folding the left and right film sheets into a V-shape with the opening facing outward;

[0017] The folding mechanism includes a V-shaped folding plate and a folding pressure wheel extending into the V-shaped folding plate. The opening of the V-shaped folding plate faces outward, and the left and right side films enter the V-shaped folding plate and are folded into a V shape.

[0018] By adopting the above technical solution, the left and right sheet membranes are folded into a V shape using a V-shaped folding plate and a folding pressure wheel, which can reduce the overall height of the product and facilitate subsequent processing steps. At the same time, the connection position between the sheet membrane and the reinforcement sheet can be exposed, facilitating the implantation of the reinforcement sheet.

[0019] Optionally, the reinforcing strip mounting device comprises a mounting bin, a reinforcing strip conveying mechanism arranged on both sides of the mounting bin, and a spot ironing mechanism arranged in the mounting bin.

[0020] The reinforcing strip conveying mechanism comprises two layers of conveying belts arranged oppositely, and the two layers of conveying belts convey two reinforcing strips to between the left film and the upper and lower films or between the right film and the upper and lower films.

[0021] The spot ironing mechanism comprises two rows of spot ironing heating pieces arranged oppositely and a lifting cylinder for controlling the lifting of the spot ironing heating pieces, and the spot ironing heating pieces are connected to the piston rod of the lifting cylinder.

[0022] By using the above technical scheme, the two reinforcing strips on the same side are conveyed in pairs to between the films by the two layers of conveying belts, the upper and lower reinforcing strips are more easily aligned, and the quality of the reinforcing bag produced is higher. The spot ironing heating piece is used to spot iron the connection between the reinforcing strip and the film, the relative position of the reinforcing strip and the film is fixed, the dislocation between the film and the reinforcing strip during the transmission of the film is prevented, and the production quality of the reinforcing bag is ensured.

[0023] Optionally, an end of the reinforcing strip conveying mechanism away from the mounting bin is provided with a reinforcing strip forming mechanism for cutting the reinforcing strip, and the reinforcing strip forming mechanism comprises a feeding roller, a cutting platform, and a pushing cylinder for pushing the reinforcing strip from the cutting platform to the conveying belt.

[0024] By using the above technical scheme, the reinforcing strip conveying mechanism can output the formed reinforcing strip, which is convenient for conveying into the mounting bin.

[0025] Optionally, the ironing and edge sealing device comprises a lower heating plate, an upper heating plate, a side heating plate, and a plurality of driving cylinders for driving the lower heating plate to rise and the upper heating plate to descend.

[0026] The heating mechanism comprises a plurality of heating strips, and the plurality of heating strips are respectively fixed on the lower heating plate, the upper heating plate, and the side heating plate.

[0027] By using the above technical scheme, the side heating plate extends into between the left and right films, the driving cylinder drives the upper heating plate to descend and the lower heating plate to rise, the four films and the reinforcing strip are clamped in the middle, the position where the films and the reinforcing strip are connected is extruded and hot-melted by the heating strips, and the rapid connection between the films and the films and between the film and the reinforcing strip is completed.

[0028] Optionally, the ironing and edge sealing device further comprises a machine base and a guide column, the side heating plate, the driving cylinder, and the guide column are connected to the machine base, and the lower heating plate and the upper heating plate are slidingly connected to the guide column.

[0029] By adopting the technical scheme, the guide column guides the lower heating plate, the upper heating plate and the side heating plate, so that the relative positions of the heating plates are kept unchanged, the heat sealing width is kept stable, and the connecting structure of the drawstring bag is more stable.

[0030] Optionally, the fixed-length cutting device comprises a driving traction wheel set and a support frame, the cutter assembly is connected to the support frame, and the cutter assembly comprises two cutting knives that are relatively close to or away from each other.

[0031] By adopting the technical scheme, the driving traction wheel set drives the continuous drawstring bag to be conveyed forward, so that the whole production process is smoothly carried out, and the normal cutting of the cutting knife is facilitated along with the continuous conveying of the drawstring bag.

[0032] Optionally, a flattening wheel set that flattens the four film pieces is arranged between the drawstring piece mounting device and the hot wire edge sealing device.

[0033] By adopting the technical scheme, the flattening wheel set can flatten the film pieces and the drawstring pieces, so as to facilitate the entry of the film pieces and the drawstring pieces into the hot wire edge sealing device.

[0034] In the second aspect, the production method of the drawstring bag adopts the following technical scheme.

[0035] The production method of the drawstring bag comprises the following steps.

[0036] The film pieces are discharged, the left and right two film pieces are folded to form a V-shaped structure with the opening facing outward, and the V-shaped structure is arranged between the upper and lower two film pieces;

[0037] The drawstring pieces are implanted, the four drawstring pieces are folded into a V-shaped structure, and the V-shaped structure is implanted between the left film piece and the upper and lower film pieces and between the right film piece and the upper and lower film pieces, and the positions where the two side edges of the four drawstring pieces contact the four film pieces are fixed by spot hot pressing;

[0038] The hot wire edge sealing is performed, the positions where the two side edges of the four drawstring pieces contact the four film pieces are fully hot sealed from the inner sides of the openings of the left and right two film pieces, from above the upper film piece and from below the lower film piece.

[0039] The fixed-length cutting is performed, the continuous body after the edge sealing is cut at a fixed length, and the drawstring bag in a cylindrical shape is formed.

[0040] In summary, the present application has at least one of the following beneficial technical effects:

[0041] 1. The whole production process of the drawstring bag in the present application is carried out by using automatic equipment, without direct participation of manual work, and the finished product is continuously output, so that the production efficiency of the drawstring bag is improved, the consistency of the cut and formed drawstring bag is high, and the product quality of the drawstring bag is improved.

[0042] 2. The point ironing mechanism in the application is used to iron the connection between the reinforcing strip and the film, fix the relative position of the reinforcing strip and the film, prevent the film from being dislocated during the transmission process, and further ensure the production quality of the reinforcing bag.

[0043] 3. The reinforcing bag structure in the application is reasonable and more conducive to continuous production. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 is a side structure schematic diagram of embodiment 1 of the application;

[0045] Figure 2 is a top structure schematic diagram of embodiment 1 of the application;

[0046] Figure 3 is a structure schematic diagram of the folding mechanism in embodiment 1 of the application;

[0047] Figure 4 is a structure schematic diagram of the point ironing mechanism in embodiment 1 of the application;

[0048] Figure 5 is a structure schematic diagram of the reinforcing edge sealing device in embodiment 1 of the application;

[0049] Figure 6 is a state schematic diagram of the reinforcing bag in the forming bin in embodiment 2 of the application;

[0050] Figure 7 is a state schematic diagram of the reinforcing bag in the installation bin in embodiment 2 of the application;

[0051] Figure 8 is a state schematic diagram of the reinforcing bag in the reinforcing edge sealing device in embodiment 2 of the application.

[0052] In the figure, 1, bag body forming device; 11, forming bin; 12, feeding rack; 13, conveying roller; 14, supporting roller; 15, pressing roller; 16, V-shaped folding plate; 17, folding pressing wheel; 2, reinforcing strip mounting device; 21, installation bin; 22, conveying belt; 23, point ironing heating piece; 24, lifting cylinder; 3, reinforcing edge sealing device; 31, lower heating plate; 32, upper heating plate; 33, side heating plate; 34, machine base; 35, guide column; 36, heating strip; 4, fixed-length cutting device; 41, driving pulley set; 42, supporting frame; 43, cutting knife; 5, flattening wheel set. DETAILED DESCRIPTION

[0053] The following will be described in detail in combination with the Figure 1 - the Figure 7 application will be further described in detail.

[0054] Embodiment 1: An automatic equipment for producing reinforcing bags, referring toFigure 1 and 2 , including a bag forming device 1, a reinforcement sheet installation device 2, a reinforcement edge sealing device 3, a fixed-length cutting device 4 and a flattening wheel group 5. The bag forming device 1, the reinforcement sheet installation device 2, the reinforcement edge sealing device 3 and the fixed-length cutting device 4 are arranged in sequence along a straight line. The flattening wheel group 5 is arranged between the reinforcement sheet installation device 2 and the reinforcement edge sealing device 3. Four sheet films surround the four sides of the reinforcement bag, which are successively shaped by the bag forming device 1, implanted with reinforcement sheets by the reinforcement sheet installation device 2, fixed by reinforcement by the reinforcement edge sealing device 3 and cut to length by the fixed-length cutting device 4 to form a cylindrical reinforcement bag. The entire production process is automated, which improves the production quality and efficiency of the reinforcement bag.

[0055] The bag-forming device 1 includes four sets of unloading mechanisms (upper, lower, left, and right), a forming chamber 11, a tensioning assembly, and a folding mechanism. The forming chamber 11 is configured as a rectangular box with openings at both ends. The four unloading mechanisms are installed at the front opening of the forming chamber 11. The upper and lower unloading mechanisms are arranged horizontally, and the left and right unloading mechanisms are arranged vertically. The four unloading mechanisms form a rectangular frame. The unloading mechanism includes an unloading rack 12 and multiple conveyor rollers 13 that convey the film into the forming chamber 11. The shaft carrying the film roll is rotatably connected to the unloading rack 12. After unloading from the unloading rack 12 and conveying from the multiple conveyor rollers 13, the four films surrounding the rectangular frame enter the forming chamber 11.

[0056] There are four groups of tensioning components, which are used to tension four film sheets respectively. Each group of tensioning components includes several rollers 14 and pressure rollers 15. The rollers 14 and pressure rollers 15 are rotatably connected to the inner wall of the forming bin 11. The rollers 14 and pressure rollers 15 are staggered. The film sheets pass through the rollers 14 and pressure rollers 15 and are tensioned.

[0057] Reference Figure 3 Two groups of folding mechanisms are provided, symmetrically connected to the left and right side walls of the forming chamber 11. The folding mechanisms include a V-shaped folding plate 16 and a folding pressure wheel 17 extending into the opening of the V-shaped folding plate 16. The opening of the V-shaped folding plate 16 faces outward and gradually decreases in the direction of sheet film transmission. The left and right sheets of film enter the V-shaped folding plate 16 and are gradually folded into a V shape. The axial direction of the folding pressure wheel 17 is vertical, and the outer wheel surface is opposite to the folding groove position of the V-shaped folding plate 16, which can press creases on the sheet film. In this embodiment, multiple folding pressure wheels 17 are provided to improve the folding effect of the sheet film. Using the V-shaped folding plate 16 and the folding pressure wheel 17 to fold the left and right sheets of film into a V shape can reduce the overall height of the product and facilitate subsequent processing steps.

[0058] After the left and right sheets are folded into a V shape, they are transported by horizontal rollers 14 and pressure rollers 15. After the upper and lower sheets are output from the forming bin 11, the distance between them is reduced under the transportation of the rollers 14 and pressure rollers 15, and they gradually approach the left and right sheets and enter the reinforcement sheet installation device 2.

[0059] Reference Figure 1 and 2 The reinforcement sheet installation device 2 is arranged at the discharge end of the bag forming device 1. The reinforcement sheet installation device 2 includes an installation bin 21 and a reinforcement sheet conveying mechanism. The installation bin 21 is configured as a rectangular box, with openings for sheet film entry and exit at the front and rear ends, and openings for reinforcement sheet entry on the left and right sides. The reinforcement sheet conveying mechanism is arranged on the left and right sides of the installation bin 21. The reinforcement sheet conveying mechanism includes two layers of conveyor belts 22 facing each other. The two layers of conveyor belts 22 on one side convey the two reinforcement sheets to the space between the left sheet film and the upper and lower sheets, and the two layers of conveyor belts 22 on the other side convey the two reinforcement sheets to the space between the right sheet film and the upper and lower sheets.

[0060] The end of the reinforcement sheet conveying mechanism away from the installation bin 21 is provided with a reinforcement sheet forming mechanism (not shown in the figure) for cutting the reinforcement sheet. The reinforcement sheet forming mechanism includes a discharge roller, a cutting platform and a pushing cylinder for pushing the reinforcement sheet from the cutting platform to the conveyor belt 22. The reinforcement sheet in this embodiment is in the form of a continuous belt with a V-shaped cross-section. When it falls onto the conveyor belt 22, the V-shaped opening of the reinforcement sheet faces the direction of the installation bin 21; in another embodiment of the present application, the reinforcement sheet forming mechanism can also be set as a storage box for finished reinforcement sheets, and the reinforcement sheets gradually fall onto the conveyor belt 22. At this time, the reinforcement sheets can be cut in advance and folded into a V-shape manually or by equipment.

[0061] Reference Figure 4 A heating mechanism is provided in the installation chamber 21 and is arranged downstream of the reinforcement sheet conveying mechanism. The heating mechanism includes two rows of heating elements 23 arranged opposite each other in an upper and lower direction and a lifting cylinder 24 for controlling the lifting of the heating elements 23. The two rows of heating elements 23 are distributed on both sides of the sheet film's travel direction. Two lifting cylinders 24 are provided on the same side of the sheet film. The two lifting cylinders 24 are fixed to the top and bottom surfaces of the installation chamber 21. The two heating elements 23 in a row are respectively connected to the piston rods of the two lifting cylinders. The two lifting cylinders 24 control the contact or separation of the two heating elements 23. Heating protrusions are provided on the opposite sides of the two heating elements 23. The heating protrusions are used to heat the connection between the reinforcement sheet and the sheet film, thereby pre-fixing the relative position of the reinforcement sheet and the sheet film. In this embodiment, the heating elements 23 are electrically heated.

[0062] Reference Figure 1 and 2The hot-rib sealing device 3 is arranged at the discharging end of the rib mounting device 2, and is used for heat sealing and fixing the position of the rib and the film. The hot-rib sealing device 3 comprises a lower heating plate 31, an upper heating plate 32, a side heating plate 33, a driving cylinder, a machine base 34, a guide column 35 and a heating mechanism. The lower heating plate 31 and the upper heating plate 32 are arranged with a gap therebetween. The side heating plate 33 is arranged oppositely on the left and right sides, and is arranged in the gap between the lower heating plate 31 and the upper heating plate 32. The lower heating plate 31 and the upper heating plate 32 are connected to the machine base 34 through the driving cylinders on the two sides. The driving cylinders connected to the lower heating plate 31 and the upper heating plate 32 are arranged separately, and drive the lower heating plate 31 to rise and the upper heating plate 32 to descend, respectively. The side heating plate 33 is connected to the machine base 34 through a support rod or is fixed to the guide column 35. The guide column 35 is also connected to the machine base 34. The lower heating plate 31 and the upper heating plate 32 are slidably connected to the guide column 35. The guide column 35 guides the lower heating plate 31, the upper heating plate 32 and the side heating plate 33, so that the horizontal relative positions of the lower heating plate 31, the upper heating plate 32 and the side heating plate 33 are unchanged.

[0063] With reference to Figure 5 The heating mechanism comprises a plurality of heating strips 36, which are fixed to the lower heating plate 31, the upper heating plate 32 and the side heating plate 33, respectively. The four heating strips 36 arranged in parallel on the lower heating plate 31 correspond to the connecting positions of the lower film and the left film, the connecting positions of the lower film and the right film and the connecting positions of the two ribs and the lower film, respectively. The four heating strips 36 arranged in parallel on the upper heating plate 32 correspond to the connecting positions of the upper film and the left film, the connecting positions of the upper film and the right film and the connecting positions of the two ribs and the upper film, respectively. The four heating strips 36 arranged in parallel on each side of the side heating plate 33 correspond to the connecting positions of the upper film and the left / right film and the connecting positions of the rib and the left / right film, respectively.

[0064] With reference to Figure 1 and 2 The flattening wheel set 5 is arranged on the upper surface of the machine base 34 close to the rib mounting device 2. The flattening wheel set 5 comprises two rollers arranged oppositely. A through channel is arranged between the two rollers for the continuous film. After the semi-finished rib bag passes through the flattening wheel set 5, the thickness of the semi-finished rib bag is reduced, so that the semi-finished rib bag is convenient to enter the hot-rib sealing device 3.

[0065] The length cutting device 4 is arranged at the discharge end of the rib sealing and edge forming device 3, and includes a driving traction wheel set 41, a support frame 42 and a cutter assembly. The driving traction wheel set 41 and the cutter assembly are both connected to the support frame 42, and the cutter assembly is located on the side of the driving traction wheel set 41 away from the rib sealing and edge forming device 3. The driving traction wheel set 41 includes two upper and lower rollers, one of which is connected with a driving motor. The cutter assembly includes two upper and lower cutting knives 43, the lower cutting knife 43 is fixed, and the upper cutting knife 43 is connected with a pneumatic cylinder at both ends, so as to control the upper cutting knife 43 to ascend and descend through the pneumatic cylinder, and to approach or move away from the lower cutting knife 43, so as to realize length cutting of the continuous rib bag.

[0066] Embodiment 2: A production method of a rib bag, including the following steps:

[0067] The film pieces are discharged into the forming bin 11 through four discharge mechanisms, two folding mechanisms fold the left and right film pieces into V-shaped structures with openings facing outward, and are arranged between the upper and lower film pieces, so that the four film pieces form a structure as shown in FIG. 6A. Figure 6

[0068] The rib pieces are implanted, after the four film pieces are discharged from the forming bin 11 into the installation bin 21, the four V-shaped rib pieces are transmitted by the two-layer conveying belt 22 from the left and right sides of the installation bin 21 and are implanted between the left film piece and the upper and lower film pieces and between the right film piece and the upper and lower film pieces. The two-layer conveying belt 22 synchronously transmits the upper and lower rib pieces to align them, and the point sealing mechanism in the installation bin 21 performs point sealing and pre-fixing on the positions where the two side edges of the four rib pieces contact the four film pieces, so as to form a semi-finished product of a continuous rib bag with a cross-sectional shape as shown in FIG. 6B. Figure 7

[0069] The rib sealing and edge forming is performed, the semi-finished product is flattened by the flattening wheel set 5, which is not compacted but reduces the overall thickness of the semi-finished product in this embodiment. The semi-finished product of the rib bag enters the rib sealing and edge forming device 3, the left and right side heating plates 33 extend into the inner sides of the openings of the left and right film pieces, the driving cylinder controls the upper heating plate 32 to descend and abut against the side heating plate 33, and controls the lower heating plate 31 to ascend and abut against the side heating plate 33, so as to perform full sealing and edge forming on the positions where the two side edges of the four rib pieces contact the four film pieces and the positions where the side edges of the adjacent film pieces contact each other from the inner sides of the openings of the left and right film pieces, the upper film piece and the lower film piece, so as to form a finished product of a continuous rib bag with a cross-sectional structure as shown in FIG. 6C. Figure 8

[0070] The length cutting is performed, the finished product of the continuous rib bag is output forward under the traction of the driving traction wheel set 41, the cutting knives 43 are staggered with the positions of the rib pieces, and the length cutting is performed on the continuous body after the sealing and edge forming, so as to form a cylindrical finished product of the rib bag, and to realize continuous production. ​​​

[0071] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made on the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An automated equipment for producing lacing bags, characterized in that: include: A bag forming device (1), the bag forming device (1) includes four groups of discharge mechanisms, namely, upper, lower, left and right, for releasing the film and surrounding the four sides of the bag; a ribbed sheet installation device (2), arranged at the discharge end of the bag forming device (1), for conveying the ribbed sheet between two adjacent films and pre-fixing the ribbed sheet and the film; a ribbed edge sealing device (3), arranged at the discharge end of the ribbed sheet installation device (2), including multiple groups of heating mechanisms, for heat-sealing the ribbed sheet and the film at the pre-fixed position; and a fixed-length cutting device (4), arranged at the discharge end of the ribbed edge sealing device (3), including a cutter assembly that can be raised and lowered, for cutting the continuous film to a fixed length; the bag forming device (1) also includes a folding mechanism for folding the left and right films into a V-shape with the opening facing outward; The folding mechanism includes a V-shaped folding plate (16) and a folding pressure wheel (17) extending into the V-shaped folding plate (16), the opening of the V-shaped folding plate (16) faces outward, and the left and right side films enter the V-shaped folding plate (16) and are folded into a V shape; the traction sheet installation device (2) includes an installation bin (21), a traction sheet conveying mechanism arranged on both sides of the installation bin (21), and a hot-pressing mechanism arranged in the installation bin (21); the traction sheet conveying mechanism includes two layers of conveyor belts (22) opposite to each other, and the two layers of conveyor belts (22) convey the two traction sheets to between the left side film and the upper and lower two films or between the right side film and the upper and lower two films; the hot-pressing mechanism includes two rows of hot-pressing heating elements (23) opposite to each other and a lifting cylinder (24) for controlling the lifting and lowering of the hot-pressing heating elements (23), and the hot-pressing heating elements (23) are connected to the piston rod of the lifting cylinder (24).

2. The automated equipment for producing lacing bags according to claim 1, characterized in that: The bag forming device (1) includes a forming bin (11) and a tensioning assembly, the discharge mechanism includes a discharge rack (12) and a plurality of conveying rollers (13) for conveying the film into the forming bin (11); the tensioning assembly is provided in four groups, each of which is used to tension four films, and each group of tensioning assemblies includes a plurality of rollers (14) rotatably connected to the inner wall of the forming bin (11) and a plurality of pressure rollers (15) staggered with the rollers (14).

3. The automated equipment for producing lacing bags according to claim 1, characterized in that: A reinforcement sheet forming mechanism for cutting the reinforcement sheet is provided at one end of the reinforcement sheet conveying mechanism away from the installation bin (21). The reinforcement sheet forming mechanism comprises a discharge roller, a cutting platform, and a pushing cylinder for pushing the reinforcement sheet from the cutting platform to the conveyor belt (22).

4. The automated equipment for producing lacing bags according to claim 1, characterized in that: The rib-scalding and edge-sealing device (3) comprises a lower heating plate (31), an upper heating plate (32), a side heating plate (33), and a plurality of driving cylinders for driving the lower heating plate (31) to rise and the upper heating plate (32) to descend; the heating mechanism comprises a plurality of heating strips (36), and the plurality of heating strips (36) are respectively fixed on the lower heating plate (31), the upper heating plate (32), and the side heating plate (33).

5. The automated equipment for producing lacing bags according to claim 4, characterized in that: The rib-scalding and edge-sealing device (3) further comprises a machine base (34) and a guide column (35); the side heating plate (33), the driving cylinder and the guide column (35) are connected to the machine base (34); and the lower heating plate (31) and the upper heating plate (32) are slidably connected to the guide column (35).

6. The automated equipment for producing lacing bags according to claim 1, characterized in that: The fixed-length cutting device (4) comprises an active traction wheel group (41) and a support frame (42), the cutter assembly is connected to the support frame (42), and the cutter assembly comprises two cutting knives (43) that are relatively close to or far away from each other.

7. The automated equipment for producing lacing bags according to claim 1, characterized in that: A flattening wheel group (5) for flattening the four sheet films is provided between the reinforcement sheet installation device (2) and the reinforcement edge sealing device (3).

8. A method for producing a lacing bag, using the automated equipment for producing lacing bags according to claim 1, characterized in that: The following steps are involved: Film unloading: unloading the four films on the upper, lower, left and right sides at the same time, folding the left and right films in half to form a V-shape with the opening facing outward, and placing it between the upper and lower films; Implanting the reinforcement sheets: folding the four reinforcement sheets in half to form a V-shape, and implanting them from the left and right sides between the left film and the upper and lower films, as well as between the right film and the upper and lower films, and pre-fixing the positions where the two sides of the four reinforcement sheets contact the four films by spot ironing; Ironing the edges: ironing the edges of the four reinforcement sheets at the positions where the two sides of the four reinforcement sheets contact the four films from the inner side of the openings of the left and right films, above the upper film, and below the lower film; Fixed-length cutting: staggering the positions of the reinforcement sheets, and cutting the sealed continuum to a fixed length to form a cylindrical reinforcement bag.

Citation Information

Patent Citations

  • Automatic bracing assembly machine

    CN110281589A

  • Method of obtaining a continuous mesh tube which is used to produce bags for vegetable and fruit products or similar products

    EP1908695A1

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