Edge folding and notching machine for plastic packaging bag production line

Abstract

The utility model relates to a plastic packaging bag production line edge folding and notching machine which comprises a bottom plate, sliding grooves are formed in the two diagonal lines of the bottom plate, the bottom end of the bottom plate and the adjacent ends of the sliding grooves are jointly communicated with a rotating groove, a driving structure is arranged in the rotating groove, and a mold structure is arranged at one end of the bottom plate. The utility model relates to the technical field of plastic packaging bags. According to the edge folding and notching machine for the plastic packaging bag production line, sliding blocks at the four corners are driven by a driving structure to move, so that four baffles make contact with the two ends of a mold, after the baffles make contact with the mold, the two sides of the mold are clamped through arrangement of one-way electric push rods, and a trimming mechanism is moved to make the trimming mechanism make contact with the baffles; and the folding corners are trimmed, so that the purposes of removing the folding corners and improving the attractiveness of the packaging bag can be effectively achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic packaging bags, in particular to a folding and cutting machine for a plastic packaging bag production line. Background Art

[0002] Plastic packaging bags are made of plastic as raw material and are used to produce various daily necessities packaging bags. The main material of plastic packaging bags is plastic film, commonly used are polyethylene, polypropylene, etc.; these materials not only have good sealing properties, but also have moisture-proof, water-resistant, oil-resistant and other properties, which can effectively protect items from damage in complex environments.

[0003] Widely used in daily life and industrial production, such as food, plastic packaging, etc.

[0004] In the prior art, plastic packaging bags used for plastic-sealed square boxes, such as the outer plastic packaging of digital product boxes, are mostly required to be made into rectangles. However, such packaging bags will form folds at the corners when closed, such as Figure 5 As shown, the aesthetics of the product packaging will be greatly reduced. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a plastic packaging bag production line stacking and cutting machine, so as to solve the technical problems mentioned in the above background technology.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A hemming and cutting machine for a plastic packaging bag production line comprises a bottom plate, wherein two diagonal lines of the bottom plate are provided with sliding grooves, a bottom end of the bottom plate and an end adjacent to each sliding groove are connected to a rotating groove, a driving structure is provided inside the rotating groove, and a mold structure is provided at one end of the bottom plate;

[0008] A threaded rod is rotatably provided inside the sliding groove, and a sliding block inserted into the sliding groove is threadedly connected to the outer surface of the threaded rod, and a baffle is connected to the top of the sliding block through a thread;

[0009] Clamping grooves are provided on both sides of the top of the base plate, the straight direction of the clamping grooves is perpendicular to the long side of the base plate, a one-way electric push rod is provided inside the clamping groove, and a clamping block is fixedly provided at the telescopic end of the one-way electric push rod, and a trimming mechanism is provided at the top of the clamping block.

[0010] Furthermore, the driving structure includes a driving motor, which is installed inside the rotating groove. The motor shaft of the driving motor extends downward and is fixedly provided with a driving gear disc. The end of the threaded rod close to the rotating groove is fixedly connected to a bevel gear that meshes with the driving gear disc.

[0011] Furthermore, the trimming mechanism includes a connecting plate, which is fixedly connected to the clamping block. The side wall of the connecting plate is provided with a bidirectional electric push rod, and the movable end of the bidirectional electric push rod is provided with a trimming head.

[0012] Furthermore, the pruning head includes a fixed plate, which is fixedly connected to the bidirectional electric push rod, and a motion groove is provided on the side wall of the fixed plate facing the middle side of the base plate, and a rotating cam is provided on the groove wall of the motion groove. A cutting blade is slidingly provided inside the motion groove, and a rectangular groove is provided at the position of the cutting blade corresponding to the rotating cam.

[0013] Furthermore, the side wall of the fixing plate facing the middle side of the bottom plate is flush with the side wall of the connecting plate.

[0014] Furthermore, the mold structure includes a mounting rod, which is inserted into the top surface of the base plate near the edge. A downward pressure rod is rotatably provided at the top end of the mounting rod, and a rectangular mold is inserted into the top end of the downward pressure rod through a hexagonal shaft.

[0015] In summary, the present invention has at least one of the following beneficial technical effects:

[0016] 1. This plastic packaging bag production line's overlapping and cutting machine uses a drive structure to move sliding blocks at the four corners, causing the four baffles to contact the two ends of the mold. After the baffles contact the mold, a one-way electric push rod is set to clamp the two sides of the mold. The trimming mechanism is moved to contact the baffles and trim the overlapping corners, thereby effectively removing the overlapping corners and improving the aesthetics of the packaging bag.

[0017] 2. This kind of overlapped edge cutting machine for a plastic packaging bag production line, when trimming the overlapped corners, first uses a bidirectional electric push rod to push the fixed plate and the baffle into contact with each other. At this time, the overlapped corner and the cutting blade come into contact with each other. The cam rotates inside the rectangular slot, causing the cutting blade to reciprocate up and down to achieve the purpose of cutting the overlapped corners.

[0018] 3. In this plastic packaging bag production line, the plate surface of the fixed plate is flush with the side wall of the connecting plate, and the moving groove is opened on the side of the fixed plate facing the middle side of the bottom plate, so that the cutting blade can be effectively aligned at the root of the overlapping angle to improve the neatness of the overlapping angle cutting, thereby further improving the aesthetics of the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a structural schematic diagram of a folding and cutting machine for a plastic packaging bag production line according to the present invention.

[0021] Figure 2 This is a structural schematic diagram of the bottom plate of a hemming and cutting machine for a plastic packaging bag production line according to the present invention.

[0022] Figure 3 The utility model is a structural schematic diagram of the trimming mechanism of the hemming and cutting machine of a plastic packaging bag production line.

[0023] Figure 4 This is a schematic structural diagram of a bottom view of a bottom plate of a hemming and cutting machine for a plastic packaging bag production line according to the present invention.

[0024] Figure 5 This is a schematic structural diagram of the mold structure of a folding and cutting machine for a plastic packaging bag production line according to the present invention.

[0025] In the figure, 1. base plate; 2. sliding groove; 3. rotating groove; 4. driving structure; 41. driving motor; 42. driving gear plate; 43. bevel gear; 5. mold structure; 51. mounting rod; 52. pressing rod; 53. rectangular mold; 6. threaded rod; 7. sliding block; 8. baffle; 9. clamping groove; 10. one-way electric push rod; 11. clamping block; 12. trimming mechanism; 121. connecting plate; 122. two-way electric push rod; 123. trimming head; 1231. fixing plate; 1232. moving groove; 1233. rotating cam; 1234. cutting blade; 1235. rectangular groove. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the accompanying drawings.

[0027] Example:

[0028] Reference Figure 1-Figure 5 The utility model discloses a hemming and cutting machine for a plastic packaging bag production line, comprising a bottom plate 1, wherein two diagonal lines of the bottom plate 1 are provided with sliding grooves 2, a bottom end of the bottom plate 1 and an end adjacent to each sliding groove 2 are connected to a rotating groove 3, a driving structure 4 is provided inside the rotating groove 3, and a mold structure 5 is provided at one end of the bottom plate 1;

[0029] A threaded rod 6 is provided for rotation inside the sliding groove 2. The outer surface of the threaded rod 6 is threadedly connected to a sliding block 7 inserted into the sliding groove 2. The top of the sliding block 7 is threadedly connected to a baffle 8.

[0030] Clamping grooves 9 are provided on both sides of the top of the base plate 1. The straight direction of the clamping grooves 9 is perpendicular to the long side of the base plate 1. A one-way electric push rod 10 is provided inside the clamping grooves 9, and a clamping block 11 is fixedly provided at the telescopic end of the one-way electric push rod 10. A trimming mechanism 12 is provided at the top of the clamping block 11.

[0031] In this embodiment, when the device is used, the packaging bag is placed on the surface of the mold and the packaging bag is sealed. Figure 5 As shown, A is the packaging bag body, A1 is the overlapping angle formed after the packaging bag is packaged, and the mold is then rotated to the top of the bottom plate 1 through the mold structure 5. At this time, the sliding blocks 7 at the four corners are driven by the driving structure 4 to move, so that the four baffles 8 are in contact with the two ends of the mold. After the baffles 8 are in contact with the mold, the two sides of the mold are clamped by the setting of the one-way electric push rod 10, and the trimming mechanism 12 is moved to make the trimming mechanism 12 contact with the baffle 8 and trim the overlapping angle, thereby effectively removing the overlapping angle to improve the aesthetics of the packaging bag.

[0032] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the driving structure 4 includes a driving motor 41, which is installed inside the rotating groove 3. The motor shaft of the driving motor 41 extends downward and is fixedly provided with a driving gear disc 42. The end of the threaded rod 6 close to the rotating groove 3 is fixedly connected with a bevel gear 43 that meshes with the driving gear disc 42.

[0033] In this embodiment, the driving motor 41 is used to drive the driving gear plate 42 to rotate. Figure 4 As shown, since the bevel gear 43 is meshed with the driving gear disc 42 , the bevel gear 43 can be effectively rotated by the rotation of the driving gear disc 42 , thereby achieving the purpose of adjusting the position of the sliding block 7 by the rotation of the threaded rod 6 .

[0034] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the trimming mechanism 12 includes a connecting plate 121, which is fixedly connected to the clamping block 11. The side wall of the connecting plate 121 is provided with a bidirectional electric push rod 122, and the movable end of the bidirectional electric push rod 122 is provided with a trimming head 123.

[0035] In this embodiment, the connecting plate 121 is used to fix two bidirectional electric push rods 122, and the two bidirectional electric push plates push the trimming heads 123 on both sides to move and contact the overlapping corners of the packaging bag, thereby trimming the overlapping corners, and the two moving ends of the bidirectional electric push rod 122 move independently.

[0036] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the trimming head 123 includes a fixed plate 1231, which is fixedly connected to the bidirectional electric push rod 122. A motion groove 1232 is provided on the side wall of the fixed plate 1231 facing the middle side of the base plate 1, and a rotating cam 1233 is provided on the groove wall of the motion groove 1232. A cutting blade 1234 is slidably provided inside the motion groove 1232, and a rectangular groove 1235 is provided at the position of the cutting blade 1234 corresponding to the rotating cam 1233.

[0037] In this embodiment, when trimming the overlapping corners, the fixed plate 1231 and the baffle 8 are first pushed into contact with each other by the bidirectional electric push rod 122. At this time, the overlapping corner and the cutting blade 1234 are in contact with each other. By rotating the cam 1233 inside the rectangular groove 1235, the cutting blade 1234 is made to reciprocate up and down to achieve the purpose of cutting the overlapping corners.

[0038] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the side wall of the fixing plate 1231 facing the middle side of the bottom plate 1 is flush with the side wall of the connecting plate 121 .

[0039] In this embodiment, the plate surface of the fixed plate 1231 is flush with the side wall of the connecting plate 121, and the moving groove 1232 is opened on the side of the fixed plate 1231 facing the middle side of the base plate 1, so that the cutting blade 1234 can be effectively aligned at the root of the overlapped angle to improve the neatness of the overlapped angle cutting.

[0040] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the mold structure 5 includes a mounting rod 51, which is inserted into the top surface of the base plate 1 near the edge. A downward pressing rod 52 is rotatably provided at the top end of the mounting rod 51, and a rectangular mold 53 is inserted at the top end of the downward pressing rod 52 through a hexagonal axis.

[0041] In this embodiment, the installation rod 51 is used to install the pressing rod 52, and the pressing rod 52 and the hexagonal shaft are used to install the rectangular mold 53. Different rectangular molds 53 are installed according to the production of different packaging bags.

[0042] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A plastic packaging bag production line hemming and cutting machine, characterized in that: The invention comprises a bottom plate (1), wherein two diagonal lines of the bottom plate (1) are provided with sliding grooves (2), the bottom end of the bottom plate (1) and one end adjacent to each sliding groove (2) are connected to a rotating groove (3), a driving structure (4) is provided inside the rotating groove (3), and a mold structure (5) is provided at one end of the bottom plate (1); A threaded rod (6) is rotatably provided inside the sliding groove (2), and a sliding block (7) inserted into the sliding groove (2) is threadedly connected to the outer surface of the threaded rod (6), and a baffle (8) is threadedly connected to the top end of the sliding block (7); Clamping grooves (9) are provided on both sides of the top of the base plate (1), and the straight direction of the clamping grooves (9) is perpendicular to the long side of the base plate (1). A one-way electric push rod (10) is provided inside the clamping groove (9), and a clamping block (11) is fixedly provided at the telescopic end of the one-way electric push rod (10), and a trimming mechanism (12) is provided at the top of the clamping block (11).

2. The edge cutting machine for a plastic packaging bag production line according to claim 1, characterized in that: The driving structure (4) includes a driving motor (41), which is installed inside the rotating groove (3). The motor shaft of the driving motor (41) extends downward and is fixedly provided with a driving gear disc (42). One end of the threaded rod (6) close to the rotating groove (3) is fixedly connected to a bevel gear (43) meshing with the driving gear disc (42).

3. The edge cutting machine for a plastic packaging bag production line according to claim 2, characterized in that: The trimming mechanism (12) includes a connecting plate (121) fixedly connected to the clamping block (11); a bidirectional electric push rod (122) is provided on the side wall of the connecting plate (121); and a trimming head (123) is provided at each movable end of the bidirectional electric push rod (122).

4. The edge cutting machine for a plastic packaging bag production line according to claim 3, characterized in that: The trimming head (123) comprises a fixed plate (1231), the fixed plate (1231) being fixedly connected to the bidirectional electric push rod (122), a side wall of the fixed plate (1231) facing the middle side of the base plate (1) being provided with a motion groove (1232), a groove wall of the motion groove (1232) being provided with a rotating cam (1233), a cutting blade (1234) being slidably provided inside the motion groove (1232), and a rectangular groove (1235) being provided at a position corresponding to the cutting blade (1234) and the rotating cam (1233).

5. The edge cutting machine for a plastic packaging bag production line according to claim 4, characterized in that: The side wall of the fixing plate (1231) facing the middle side of the bottom plate (1) is flush with the side wall of the connecting plate (121).

6. The edge cutting machine for a plastic packaging bag production line according to claim 5, characterized in that: The mold structure (5) includes a mounting rod (51), which is inserted into the top surface of the base plate (1) near the edge. A lower pressing rod (52) is rotatably provided at the top end of the mounting rod (51), and a rectangular mold (53) is inserted into the top end of the lower pressing rod (52) via a hexagonal shaft.

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