A bagging device for vacuum film bags and a method of using the same

Abstract

The invention discloses a bagging device for a vacuum film bag and a method of using the bagging device, which comprises a plurality of straight-sticking glue platforms with adjustable lengths, which are sequentially spliced ​​end to end through a right-angle sticking glue platform to form a rectangular frame, both ends of the straight-sticking glue platform are provided with a vertical first magnetic attraction plate, and both ends of the right-angle sticking glue platform are freely retractable and provided with a second magnetic attraction plate that is magnetically matched with the first magnetic attraction plate, and the retraction direction of the second magnetic attraction plate is parallel to the extension direction of the straight-sticking glue platform on the first magnetic attraction plate that is magnetically matched with it, and a fixed platform is provided in the middle of the rectangular frame, and a vacuum suction cup is embedded on the fixed platform; the vacuum film bag manufactured by the present invention has a high degree of consistency in length, width and thickness with the length, width and thickness of the fabric to be infused, respectively, and compared with the traditional method of directly bonding the vacuum film based on experience, the manufacture of the vacuum film bag is more standardized and reliable, thereby reducing the waste of the vacuum film, saving the manufacturing cost, and improving the process efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum assisted infusion molding, and in particular to a bagging device for a vacuum film bag and a use method thereof. Background Art

[0002] The vacuum-assisted infusion molding process uses a vacuum pump and other equipment to evacuate the object to be infused in a negative pressure sealed environment, and uses the pressure difference between the inside and outside of the mold cavity to press the vacuum infusion epoxy resin into the mold cavity, thereby achieving full impregnation of the fiber fabric.

[0003] Vacuum-assisted infusion molding technology is being used in production and experiments by many companies and laboratories for its advantages of sufficient impregnation and high infusion efficiency. At present, vacuum infusion molding is mainly divided into two types. One is to use an upper convex mold and a lower concave mold to form a vacuum cavity by tightening and sealing the upper and lower molds. However, due to the heavy mold, each mold opening and closing requires lifting equipment. Especially when closing the mold, not only alignment is required, but also tightening the screws to tighten the seal, which is time-consuming and labor-intensive and requires a large space; the other is to use a vacuum bag and a lower concave mold, with the help of sealant to form a vacuum cavity to completely wrap the object to be infused, and then evacuate the vacuum bag, and then press vacuum infusion epoxy resin into the vacuum bag, and then seal, cure, and demold to finally obtain the product. In this process, manual hand sealing is generally used, and it is difficult to avoid many wrinkles on the fiber surface during the vacuuming process, which need to be flattened one by one, which is time-consuming and labor-intensive.

[0004] In addition, when using vacuum film bags for sealing, it is necessary to cut the size of the vacuum film and determine the distribution of the sealing strips. Questions such as how much vacuum bag space is needed to reserve for fiber fabrics of different lengths, widths, and heights can only be dealt with based on the staff's experience. Since the sealing adhesive used when laying the vacuum film has a high viscosity, once the estimation or operation is wrong, the entire vacuum film will be wasted, making its operation difficult and inefficient. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the present invention provides a bagging device for vacuum film bags and a method of using the same, which encloses the vacuum film into a cubic vacuum film bag, thereby solving the problem of difficulty in operating the vacuum film bag during the manufacturing process.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is:

[0007] A bagging device for vacuum film bags is provided, which comprises a plurality of length-adjustable straight glue platforms, which are sequentially spliced ​​end to end through a right-angle glue platform to form a rectangular frame, both ends of the straight glue platform are provided with a vertical first magnetic suction plate, both ends of the right-angle glue platform are freely retractable with a second magnetic suction plate magnetically matched with the first magnetic suction plate, and the retraction direction of the second magnetic suction plate is parallel to the extension direction of the straight glue platform on the first magnetic suction plate magnetically matched with it, a fixed platform is provided in the middle of the rectangular frame, a vacuum suction cup is embedded in the fixed platform, the fixed platform is respectively connected to the straight glue platform and the right-angle glue platform through a horizontal telescopic rod, and the fixed platform, the straight glue platform and the right-angle glue platform are all hinged to the end of the horizontal telescopic rod, and the upper surfaces of the straight glue platform, the right-angle glue platform and the fixed platform are all located in the same horizontal plane.

[0008] The beneficial effects of adopting the above technical scheme are as follows: this scheme can adsorb and fix the vacuum film covering the bagging device through the vacuum suction cup on the fixed table, and the size of the rectangular frame is adjustable, which can be used as the basis for cutting the size of the vacuum film, and then the four corners of the vacuum film are folded and configured to form a cubic vacuum film bag. Through the magnetic attraction and cooperation of the first magnetic plate and the freely retractable second magnetic plate, the size of the three-dimensional configuration of the vacuum film bag can be reserved, and the folded vacuum film can be clamped and fixed, and the processing methods of the four corners are the same, so that the production of vacuum film bags is standardized, the stable control of the size of the vacuum film bags is achieved, and the size deviation is prevented, thereby reducing the difficulty of operation and improving the success rate of vacuum film bag production.

[0009] Furthermore, the direct glue sticking platform includes a first glue sticking platform and a second glue sticking platform. The first glue sticking platform is hollow inside, and the second glue sticking platform is movably arranged inside the first glue sticking platform. A number of evenly arranged positioning through holes are provided in the extension direction of the sides of the first glue sticking platform and the second glue sticking platform. The first glue sticking platform and the second glue sticking platform are limited and fixed by positioning pins. The positioning pins are simultaneously passed through the positioning through holes of the first glue sticking platform and the second glue sticking platform. The first magnetic suction plates are respectively vertically arranged at the outer ends of the first glue sticking platform and the second glue sticking platform.

[0010] The beneficial effects of adopting the above technical solution are: by adjusting the extension length of the second glue sticking platform, the length adjustment of the direct glue sticking platform can be achieved, and by setting positioning through holes with equal spacing on the first glue sticking platform and the second glue sticking platform, the second glue sticking platform can be limited and fixed with the first glue sticking platform by the positioning pins at any telescopic position, and the adjustment is simple and the reliability is strong.

[0011] Furthermore, gluing grooves are provided on the extension direction of the upper surfaces of the first gluing platform and the second gluing platform. The cross-section of the gluing grooves is an inverted trapezoidal shape, and the opening width of the gluing grooves is greater than the width of the sealing strip, so that the sealing strip can be attached to the edge of the vacuum film along a straight line, which is beneficial to improve the matching degree between the vacuum film bag and the edge of the fabric to be poured.

[0012] Furthermore, horizontal slide grooves are provided at both ends of the right-angle glue laminating platform, a horizontal telescopic plate is movably provided in the horizontal slide groove, a limiting buckle for fixing the horizontal telescopic plate is provided on the horizontal telescopic plate, and the second magnetic plate is vertically arranged at the front end of the horizontal telescopic plate, so that the horizontal telescopic plate can drive the second magnetic plate to freely retract and fix.

[0013] Furthermore, the horizontal telescopic plate is close to the upper surface of the right-angle glue sticking platform. Since part of the upper surface of the rectangular frame is composed of the horizontal telescopic plate, this arrangement makes the upper surface of the entire rectangular frame as flat as possible, which is conducive to the sticking of the sealing strip; a ruler is provided on the telescopic direction of the horizontal telescopic plate, so as to realize precise control of the telescopic length of the second magnetic suction plate.

[0014] Furthermore, the upper surface of the fixing table is a smooth coating plane with rounded corners, and the vacuum suction cup includes a central suction cup and a suction cup handle. The central suction cup passes through the fixing table and is flush with the coating plane, and the suction cup handle is located at the bottom of the central suction cup. This arrangement enables the fixing table to achieve adsorption and fixation of the vacuum film without causing wear and damage to the vacuum film.

[0015] Furthermore, the rotation planes where the horizontal telescopic rods are respectively hinged to the fixed platform, the straight glue sticking platform and the right-angle glue sticking platform are all horizontal planes, which facilitates the flexible adjustment of the relative positions between the straight glue sticking platform, the right-angle glue sticking platform and the fixed platform.

[0016] A method for using a bagging device for a vacuum film bag is provided, comprising the following steps:

[0017] S1: Determine the required length, width and height of the vacuum film bag according to the size of the object to be poured;

[0018] S2: adjusting the lengths of the four glue sticking tables according to the length and width of the vacuum film bag until the lengths of two adjacent glue sticking tables in the rectangular frame are not less than the length and width of the vacuum film bag respectively;

[0019] S3: adjusting the extension length of the second magnetic plate according to the height of the vacuum film bag until the extension length of the second magnetic plate is not less than twice the height of the vacuum film bag;

[0020] S4: Cover the uncut vacuum film on the upper surface of the bagging device, fix the vacuum film by sucking it with a vacuum suction cup, cut the vacuum film along the outer edge of the rectangular frame, and stick a sealing strip along the concave track;

[0021] S5: Contract the second magnetic plate until the gap between the first magnetic plate and the second magnetic plate is no less than twice the height of the vacuum film bag, and remove the protective paper tape of the sealing strip between the first magnetic plate and the second magnetic plate;

[0022] S6: Pull down the vacuum film between the first magnetic plate and the second magnetic plate and fold it, so that the sealing strip at the fold of the vacuum film is bonded, and while pulling down the vacuum film, adjust the position of the straight glue sticking platform and the adjacent right-angle glue sticking platform, so that the first magnetic plate and the second magnetic plate are brought closer, until the first magnetic plate and the second magnetic plate are magnetically matched, and the folded vacuum film is sandwiched between the first magnetic plate and the second magnetic plate;

[0023] S7: Repeat step S6 until all the first magnetic plates are magnetically matched with the second magnetic plates, all the straight glue sticking tables and the right-angle glue sticking tables are spliced ​​into a rectangular frame again, and all the folded vacuum films are configured under the bonding action of the sealant and form a space reservation together, so that the flat vacuum films are surrounded into a cubic vacuum film bag;

[0024] S8: Remove the vacuum film bag from the vacuum suction cup, cover it on the fabric to be infused according to the corresponding size, remove the protective paper tape of the sealing strip, and bond it to the lower concave mold to complete the entire bagging process.

[0025] The beneficial effects of the present invention are as follows: the length, width and thickness of the vacuum film bag produced by this scheme are highly consistent with the length, width and thickness of the object to be poured, respectively. Compared with the traditional method of directly bonding the vacuum film based on experience, the production of the vacuum film bag is more standardized and reliable, thereby reducing the waste of vacuum film, saving production costs and improving process efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the bagging device of this scheme.

[0027] Figure 2 This is a schematic diagram of the local structure at the fixed platform.

[0028] Figure 3 It is a schematic diagram of the local structure of the double-section connecting rod.

[0029] Figure 4 It is a schematic diagram of the partial structure of the cooperation between the first glue sticking station and the second glue sticking station.

[0030] Figure 5 It is a schematic diagram of the local structure at the right-angle glue sticking station.

[0031] Among them, 1. straight gluing table, 2. right-angle gluing table, 3. first magnetic plate, 4. second magnetic plate, 5. fixed table, 6. vacuum suction cup, 7. horizontal telescopic rod, 8. first gluing table, 9. second gluing table, 10. positioning through hole, 11. positioning pin, 12. gluing concave rail, 13. horizontal slide groove, 14. horizontal telescopic plate, 15. limit buckle, 16. central suction cup, 17. suction cup handle, 18. bracket, 19. outer connecting rod, 20. inner connecting rod, 21. connecting rod shaft. DETAILED DESCRIPTION

[0032] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0033] Example 1

[0034] like Figure 1 As shown, the bagging device for vacuum film bags in this scheme includes four length-adjustable straight glue stages 1, which are sequentially spliced ​​end to end through a right-angle glue stage 2 to form a rectangular frame, and the four right-angle glue stages 2 are respectively arranged at the four corners of the rectangular frame, and the straight glue stages 1 and the right-angle glue stages 2 are stably supported by a bracket 18, and both ends of the straight glue stage 1 are provided with a vertical first magnetic plate 3, and both ends of the right-angle glue stage 2 are freely retractable and provided with a second magnetic plate 4 that magnetically cooperates with the first magnetic plate 3, and the retraction direction of the second magnetic plate 4 is parallel to the extension direction of the straight glue stage 1 on the first magnetic plate 3 that magnetically cooperates with it.

[0035] A fixed platform 5 is arranged in the middle of the rectangular frame, and the upper surfaces of the straight gluing platform 1, the right-angle gluing platform 2 and the fixed platform 5 are all located in the same horizontal plane, so that the vacuum film covered thereon remains horizontal and its size is ensured to be close to the theoretical size; the fixed platform 5 is respectively connected to the straight gluing platform 1 and the right-angle gluing platform 2 through a horizontal telescopic rod 7, and the fixed platform 5, the straight gluing platform 1 and the right-angle gluing platform 2 are all hinged to the end of the horizontal telescopic rod 7, so as to realize the flexible adjustment of the relative positions between the straight gluing platform 1, the right-angle gluing platform 2 and the fixed platform 5.

[0036] like Figure 2 As shown, the horizontal telescopic rod 7 is preferably a double-section connecting rod, which includes an outer connecting rod 19 and an inner connecting rod 20 that are nested with each other. The inner connecting rod 20 telescopically slides on the outer connecting rod 19. A connecting rod rotating shaft 21 is fixedly provided on the fixed platform 5, the straight glue sticking platform 1 and the right-angle glue sticking platform 2. The outer ends of the outer connecting rod 19 and the inner connecting rod 20 are respectively movably mounted on the connecting rod rotating shaft 21, so that the outer connecting rod 19 and the inner connecting rod 20 can rotate freely around the connecting rod rotating shaft 21 on a horizontal plane.

[0037] like Figure 3 As shown, the vacuum suction cup 6 includes a central suction cup 16 and a suction cup handle 17. The upper surface of the fixing platform 5 is a smooth coating plane with rounded corners. The central suction cup 16 passes through the fixing platform 5 and is flush with the coating plane. The suction cup handle 17 is located at the bottom of the central suction cup 16. This arrangement enables the fixing platform 5 to achieve adsorption and fixation of the vacuum film without causing wear and damage to the vacuum film.

[0038] In this scheme, the vacuum film covering the bagging device can be adsorbed and fixed by the vacuum suction cup 6 on the fixed table 5, and the size of the rectangular frame is adjustable, which can be used as the basis for cutting the size of the vacuum film. The vacuum film can be cut along the outer edge of the rectangular frame, and then the four corners of the vacuum film are folded to form a cubic vacuum film bag. The magnetic attraction and cooperation between the first magnetic plate 3 and the freely retractable second magnetic plate 4 can provide a size reserve for the three-dimensional configuration of the vacuum film bag, and the folded vacuum film can be clamped and fixed. The processing methods at the four corners are the same, so that the production of the vacuum film bag is standardized, the stable control of the size of the vacuum film bag is achieved, and the size deviation is prevented, thereby reducing the difficulty of operation and improving the success rate of the production of the vacuum film bag.

[0039] Example 2

[0040] like Figure 4 As shown, this embodiment provides a specific scheme of the direct glue sticking platform 1 on the basis of embodiment 1. The direct glue sticking platform 1 includes a first glue sticking platform 8 and a second glue sticking platform 9. The first glue sticking platform 8 is hollow inside, and the second glue sticking platform 9 is movably inserted into the inside of the first glue sticking platform 8. The length adjustment of the direct glue sticking platform 1 is achieved by adjusting the extension length of the second glue sticking platform 9, and the first magnetic suction plate 3 is vertically arranged at the outer ends of the first glue sticking platform 8 and the second glue sticking platform 9 respectively; a plurality of evenly arranged positioning through holes 10 are provided in the extension direction of the side surfaces of the first glue sticking platform 8 and the second glue sticking platform 9, and the first glue sticking platform 8 and the second glue sticking platform 9 are limited and fixed by positioning pins 11, and the positioning pins 11 are simultaneously inserted into the positioning through holes 10 of the first glue sticking platform 8 and the second glue sticking platform 9. By setting the positioning through holes 10 with equal spacing on the first glue sticking platform 8 and the second glue sticking platform 9, the second glue sticking platform 9 can be limited and fixed with the first glue sticking platform 8 by the positioning pins 11 at any telescopic position, and the adjustment is simple and the reliability is strong.

[0041] Glue-sticking grooves 12 are provided in the extension direction of the upper surfaces of the first gluing platform 8 and the second gluing platform 9. The cross-section of the gluing grooves 12 is in the shape of an inverted trapezoid. The opening width of the gluing grooves 12 is greater than the width of the sealing strip, so that the sealing strip can be attached to the edge of the vacuum film along a straight line, which is beneficial to improve the matching degree between the vacuum film bag and the edge of the fabric to be poured.

[0042] Example 3

[0043] like Figure 5As shown, this embodiment provides a specific scheme of the right-angle glue sticking platform 2 on the basis of Embodiment 1. The right-angle glue sticking platform 2 is L-shaped. Horizontal slide grooves 13 are provided at both ends of the right-angle glue sticking platform 2. A horizontal telescopic plate 14 is movably provided in the horizontal slide groove 13. A limiting buckle 15 for fixing the horizontal telescopic plate 14 is provided on the horizontal telescopic plate 14. The second magnetic plate 4 is vertically arranged at the front end of the horizontal telescopic plate 14, so that the horizontal telescopic plate 14 can drive the second magnetic plate 4 to freely extend and fix.

[0044] The horizontal telescopic plate 14 is close to the upper surface of the right-angle glue sticking platform 2. Since part of the upper surface of the rectangular frame is composed of the horizontal telescopic plate 14, this arrangement makes the upper surface of the entire rectangular frame as flat as possible, which is conducive to the sticking of the sealing strip; a scale is provided in the telescopic direction of the horizontal telescopic plate 14, so as to realize precise control of the telescopic length of the second magnetic suction plate 4.

[0045] In combination with the above-mentioned embodiments 1-3, the lower concave mold used in this scheme is preferably a rigid glass panel, the fabric to be infused is a foam core material or a glass fiber fabric, and is cured with an epoxy resin curing agent. A vacuum mold bag is made by a vacuum film, and after the vacuum mold bag is bagged, vacuum infusion and curing are performed to form a cubic foam core sandwich panel product.

[0046] Example 4

[0047] Based on embodiments 1-3, this embodiment further provides a method for using a bagging device, which comprises the following steps:

[0048] S1: Determine the required length, width and height of the vacuum film bag according to the size of the fabric to be infused;

[0049] S2: adjusting the lengths of the four glue sticking platforms 1 according to the length and width of the vacuum film bag, wherein the length adjustment of the glue sticking platform 1 can be achieved by adjusting the extension length of the second glue sticking platform 9, until the lengths of two adjacent glue sticking platforms 1 in the rectangular frame are not less than the length and width of the vacuum film bag respectively;

[0050] S3: adjusting the extension length of the second magnetic plate 4 according to the height of the vacuum film bag, and adjusting the horizontal telescopic plate 14 so that the extension length of the second magnetic plate 4 is not less than twice the height of the vacuum film bag;

[0051] S4: Cover the uncut vacuum film on the upper surface of the bagging device, fix the vacuum film by sucking the vacuum suction cup 6, cut the vacuum film along the outer edge of the rectangular frame, and stick the sealing strip along the adhesive concave track 12;

[0052] S5: Adjust the horizontal telescopic plate 14 to shrink the second magnetic plate 4 until the gap between the first magnetic plate 3 and the second magnetic plate 4 is not less than twice the height of the vacuum film bag, and remove the protective paper tape of the sealing strip between the first magnetic plate 3 and the second magnetic plate 4;

[0053] S6: Pull down the vacuum film between the first magnetic plate 3 and the second magnetic plate 4 and fold it, so that the sealing strip at the fold of the vacuum film is bonded, and while pulling down the vacuum film, adjust the position of the straight glue sticking platform 1 and the adjacent right-angle glue sticking platform 2, so that the first magnetic plate 3 and the second magnetic plate 4 are brought closer, until the first magnetic plate 3 and the second magnetic plate 4 are magnetically matched, and the folded vacuum film is sandwiched between the first magnetic plate 3 and the second magnetic plate 4;

[0054] S7: Repeat step S6 until all the first magnetic plates 3 are magnetically matched with the second magnetic plates 4, and all the straight glue tables 1 and the right-angle glue tables 2 are spliced ​​into a smaller rectangular frame again. All the folded vacuum films are configured under the bonding action of the sealant and form a space reservation together. Since the gap between the first magnetic plate 3 and the second magnetic plate 4 is not less than twice the height of the vacuum film bag, the size of the vacuum film after being pulled down and folded corresponds to the height of the vacuum film bag. Therefore, the flat vacuum film is enclosed into a cubic vacuum film bag with a high degree of fit with the fabric to be infused.

[0055] S8: Remove the vacuum film bag from the suction cup, cover it on the fabric to be poured according to the corresponding size, remove the protective paper tape of the sealing strip, and bond it to the rigid glass panel to complete the entire bagging process. At the same time, after bagging, there will not be too many wrinkles between the vacuum film bag and the fabric to be poured, which is difficult to achieve with traditional methods, thereby ensuring the production quality of the vacuum film bag.

Claims

1. A bagging device for vacuum film bags, characterized in that: The invention comprises a plurality of length-adjustable straight glue sticking platforms (1), wherein the plurality of straight glue sticking platforms (1) are sequentially spliced ​​end to end through a right-angle glue sticking platform (2) to form a rectangular frame, wherein both ends of the straight glue sticking platform (1) are provided with a vertical first magnetic attraction plate (3), and both ends of the right-angle glue sticking platform (2) are freely retractably provided with a second magnetic attraction plate (4) magnetically matched with the first magnetic attraction plate (3), and the retracting direction of the second magnetic attraction plate (4) is parallel to the extension direction of the straight glue sticking platform (1) on the first magnetic attraction plate (3) magnetically matched with the second magnetic attraction plate (4); A fixed platform (5) is arranged in the middle of the rectangular frame, a vacuum suction cup (6) is embedded on the fixed platform (5), the fixed platform (5) is respectively connected to the straight glue sticking platform (1) and the right-angle glue sticking platform (2) through a horizontal telescopic rod (7), and the fixed platform (5), the straight glue sticking platform (1) and the right-angle glue sticking platform (2) are all hinged to the end of the horizontal telescopic rod (7), and the upper surfaces of the straight glue sticking platform (1), the right-angle glue sticking platform (2) and the fixed platform (5) are all located on the same horizontal plane.

2. The bagging device for vacuum film bags according to claim 1, characterized in that: The direct glue sticking platform (1) comprises a first glue sticking platform (8) and a second glue sticking platform (9); the first glue sticking platform (8) is hollow inside; the second glue sticking platform (9) is movably arranged inside the first glue sticking platform (8); a plurality of evenly arranged positioning through holes (10) are arranged in the extending direction of the side surfaces of the first glue sticking platform (8) and the second glue sticking platform (9); the first glue sticking platform (8) and the second glue sticking platform (9) are fixed by positioning pins (11); the positioning pins (11) are simultaneously arranged on the positioning through holes (10) of the first glue sticking platform (8) and the second glue sticking platform (9); and the first magnetic suction plate (3) is vertically arranged at the outer ends of the first glue sticking platform (8) and the second glue sticking platform (9), respectively.

3. The bagging device for vacuum film bags according to claim 2, characterized in that: A glue concave track (12) is provided in the extension direction of the upper surface of the first glue sticking platform (8) and the second glue sticking platform (9), the cross section of the glue sticking concave track (12) is in an inverted trapezoidal shape, and the opening width of the glue sticking concave track (12) is greater than the width of the sealing strip.

4. The bagging device for vacuum film bags according to claim 1, characterized in that: Both ends of the right-angle glue laminating platform (2) are provided with horizontal slide grooves (13), a horizontal telescopic plate (14) is movably arranged in the horizontal slide groove (13), a limit buckle (15) for fixing the horizontal telescopic plate (14) is arranged on the horizontal telescopic plate (14), and the second magnetic attraction plate (4) is vertically arranged at the front end of the horizontal telescopic plate (14).

5. The bagging device for vacuum film bags according to claim 4, characterized in that: The horizontal telescopic plate (14) is close to the upper surface of the right-angle glue laminating platform (2), and a scale is provided in the telescopic direction of the horizontal telescopic plate (14).

6. The bagging device for vacuum film bags according to claim 1, characterized in that: The upper surface of the fixing platform (5) is a smooth coating plane with rounded corners. The vacuum suction cup (6) comprises a central suction cup (16) and a suction cup handle (17). The central suction cup (16) passes through the fixing platform (5) and is flush with the coating plane. The suction cup handle (17) is located at the bottom of the central suction cup (16).

7. The bagging device for vacuum film bags according to claim 1, characterized in that: The rotation planes on which the horizontal telescopic rod (7) is hinged to the fixed platform (5), the straight glue sticking platform (1) and the right-angle glue sticking platform (2) are all horizontal planes.

8. The method for using the bagging device for vacuum film bags according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: Determine the required length, width and height of the vacuum film bag according to the size of the object to be poured; S2: adjusting the lengths of the four straight-sticking glue platforms (1) according to the length and width of the vacuum film bag, until the lengths of two adjacent straight-sticking glue platforms (1) in the rectangular frame are not less than the length and width of the vacuum film bag respectively; S3: adjusting the extension length of the second magnetic plate (4) according to the height of the vacuum film bag until the extension length of the second magnetic plate (4) is not less than twice the height of the vacuum film bag; S4: Covering the uncut vacuum film on the upper surface of the bagging device, fixing the vacuum film by sucking it with a vacuum suction cup (6), cutting the vacuum film along the outer edge of the rectangular frame, and pasting a sealing strip along the upper surface of the rectangular frame; S5: Contracting the second magnetic plate (4) until the gap between the first magnetic plate (3) and the second magnetic plate (4) is not less than twice the height of the vacuum film bag, and removing the protective paper tape of the sealing strip between the first magnetic plate (3) and the second magnetic plate (4); S6: Pull down the vacuum film between the first magnetic plate (3) and the second magnetic plate (4) and fold it so that the sealing strip at the folded part of the vacuum film is bonded, and while pulling down the vacuum film, adjust the position of the straight glue sticking platform (1) and the adjacent right-angle glue sticking platform (2) so that the first magnetic plate (3) and the second magnetic plate (4) are brought closer together until the first magnetic plate (3) and the second magnetic plate (4) are magnetically matched, and the folded vacuum film is sandwiched between the first magnetic plate (3) and the second magnetic plate (4); S7: Repeat step S6 until all the first magnetic plates (3) are magnetically matched with the second magnetic plates (4), all the straight glue sticking tables (1) and the right-angle glue sticking tables (2) are spliced ​​into a rectangular frame again, and all the folded vacuum films are configured under the bonding action of the sealant and form a space reservation together, so that the flat vacuum films are surrounded into a cubic vacuum film bag; S8: Remove the vacuum film bag from the vacuum suction cup (6), cover it on the fabric to be infused according to the corresponding size, remove the protective paper tape of the sealing strip, and glue it to the lower concave mold to complete the entire bagging process.

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