An automatic bag-making and bag-opening device for POF film

Abstract

The present invention belongs to the technical field of bag making, and specifically relates to an automatic bag making and bag opening device for POF films, including a machine body, a film feeding mechanism, a film releasing mechanism, and a first motor; first cylinders are fixedly connected to opposite side walls on both sides of the machine body; a lower pressing plate is fixedly connected to the bottom end of the output end of the first cylinder; a positioning plate is fixedly connected between the side walls on both sides of the machine body; the positioning plate is located directly below the lower pressing plate, and opening teeth are provided on both the lower pressing plate and the positioning plate in a correspondingly distributed manner; a second slide rail is fixedly connected to the side wall of the machine body; an upper opening plate and a lower opening plate are slidably connected to the second slide rail, and the upper opening plate and the lower opening plate are respectively adjusted up and down by a fourth cylinder; to solve the problem that the bag making method of the corner cutting and film wrapping machine is to use a film pulling rod to pull the film to make bags. When the size of the bag changes, different lengths of film pulling rods need to be replaced, the operation is cumbersome, the replacement is inconvenient, and the film pulling rod moves to pull the film, which is easy to swing due to vibration, the bag making is unstable, and defective products are likely to appear.

Description

Technical Field

[0001] The present invention belongs to the technical field of bag making, and specifically relates to an automatic bag making and bag opening device for POF film. Background Art

[0002] POF is a heat shrinkable film, mainly used for packaging products with regular and irregular shapes, and has the characteristics of non-toxic environmental protection, high transparency, high shrinkage rate, good heat sealing performance, etc. Generally, bag making is carried out by a corner cutting and film wrapping machine.

[0003] In the prior art, the bag making method of the traditional corner cutting and film wrapping machine is to pull the film with a film pulling rod. When the size of the bag changes, different lengths of film pulling rods need to be replaced, which is cumbersome to operate and inconvenient to replace. Moreover, the film pulling rod moves to pull the film, and it is easy to swing due to vibration, resulting in unstable bag making and easy appearance of defective products. Therefore, the present invention provides an automatic bag making and bag opening device for POF film. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0005] The technical solution adopted by the present invention to solve its technical problems is as follows: An automatic bag making and bag opening device for POF film of the present invention includes a machine body, a film feeding mechanism, a film releasing mechanism, and a first motor; first cylinders are fixedly connected to the opposite side walls on both sides of the machine body; a lower pressing plate is fixedly connected to the bottom end of the output end of the first cylinder; a positioning plate is fixedly connected between the side walls on both sides of the machine body; the positioning plate is located directly below the lower pressing plate, and opposite and corresponding openings are provided on both the lower pressing plate and the positioning plate; a second slide rail is fixedly connected to the side wall of the machine body; an upper opening plate and a lower opening plate are slidably connected to the second slide rail, and both the upper opening plate and the lower opening plate are respectively adjusted up and down by a fourth cylinder; a second cylinder is fixedly connected to the top of the machine body, and a lower pressing seat is fixedly connected to the bottom end of the second cylinder; a hot cutting knife is provided in the lower pressing seat, and a third cylinder is fixedly connected to the lower pressing seat, and the output end of the third cylinder is fixedly connected to the hot cutting knife; the hot cutting knife is located in front of the opening teeth; a placement rack is fixedly connected to the side wall of the machine body; a lead screw is provided at the output end of the first motor, and the end of the lead screw is rotatably connected to the side wall of the machine body; a moving seat is connected to the lead screw through a lead screw nut pair; a pair of first slide rails are fixedly connected to the side wall of the machine body, and the moving seat is slidably connected to the first slide rails; a first clamping jaw and a second clamping jaw are provided on the moving seat through an adjusting member; a fixing seat is fixedly connected to the side wall of the moving seat, and an L-shaped hook is provided on the fixing seat through a rotating member; clamping and pulling are performed through the operations of the first clamping jaw, the second clamping jaw, and the L-shaped hook, so that the bag making is stable. At the same time, since both the first clamping jaw and the second clamping jaw can be moved up and down through the adjusting member, the adjusting member and the rotating member here are prior arts and will not be elaborated.

[0006] Preferably, a limiting groove is formed in the moving seat; a second motor is fixedly connected to the moving seat; a set of conveying rollers is arranged on the side wall of the moving seat, and the set of conveying rollers is driven by a conveyor belt. The second motor drives the conveying rollers to rotate, and the first clamping jaw is fixedly connected to the conveyor belt through a moving block, and the moving block is slidably connected in the limiting groove. During operation, when making bags of different sizes, the second motor is started to drive the conveyor belt to move, thereby driving the moving block to move, driving the second clamping jaw to move, and then adjusting the distance between the second clamping jaw and the first clamping jaw. At the same time, due to the setting of the opening teeth, the distance between the second clamping jaw and the first clamping jaw is adjusted to adapt to film materials of different sizes, and no additional replacement operation is required, which is simple and convenient. At the same time, due to the function of the adjusting part, the placement rack will not affect the movement and adjustment of the second clamping jaw.

[0007] Preferably, the film feeding mechanism includes a set of guiding rollers; the set of guiding rollers is rotatably connected between the side walls on both sides of the machine body; rotating blocks are rotatably connected to the side walls on both sides of the machine body, and an adjusting roller is rotatably connected between a pair of rotating blocks; the rotating blocks are fixed by a clamping member; limiting columns are fixedly connected to the side walls on both sides of the machine body. During operation, the film feeding mechanism is guided by a set of guiding rollers. At the same time, an adjusting roller is provided, and the position of the adjusting roller can be adjusted by the rotation of the rotating roller, so as to adjust the tension of the film material. At the same time, the clamping member of the rotating block is a prior art and will not be elaborated.

[0008] Preferably, a first roller is rotatably connected between the side walls on both sides of the machine body; a set of annular opening grooves is formed in the first roller; a third roller is rotatably connected to the side wall of the machine body; a pair of fixed disks are fixedly connected to the third roller, and a second roller is rotatably connected between the pair of fixed disks; a third motor is fixedly connected to the side wall of the machine body, and a rotating shaft is provided at the output end of the third motor, and the rotating shaft drives the second roller to rotate through a transmission member in the fixed disk; an annular block is fixedly connected to the outer side wall of the second roller, and a set of barbs are fixedly connected between the pair of annular blocks; a fixed column is fixedly connected to the third roller; a rotating column is rotatably connected to the side wall of the machine body, and an irregular disk is fixedly connected to one end of the rotating column, and a grip is fixedly connected to the other end. The irregular disk and the fixed column are in contact with each other. The third motor drives the transmission member in the fixed disk through the rotating shaft to drive the second roller to rotate, so as to cut holes in the film material for convenient subsequent segmentation. At the same time, since the third roller and the rotating shaft are on the same horizontal line, the adjustment of the third roller will not affect the rotation of the rotating shaft, nor will it affect the drive through the transmission member. The transmission member is a prior art.

[0009] Preferably, a pair of fifth cylinders are fixedly connected to the bottom end of the body through a limiting plate, and a lining plate is fixedly connected to the output end of the fifth cylinder; the lining plate is located directly below the hot cutting knife; by moving the fifth cylinder upward, the lining plate and the film material are mutually attached, and then cutting is performed using the hot cutting knife, which can ensure that the cutting position is cut off, avoiding poor cutting quality, leakage or curling phenomena.

[0010] Preferably, fixing plates are fixedly connected to the side walls on both sides of the body; sliding grooves are formed in the fixing plates; a pressing and cutting seat is slidably connected to the sliding grooves; a hanging ear cutting knife is arranged in the pressing and cutting seat, and the hanging ear cutting knife is driven up and down by a cylinder; the hanging ear cutting knife in the pressing and cutting seat cuts the hanging ear easy tear line of the film material, and since the pressing and cutting seat can move in the sliding groove, it is convenient to adjust according to film materials of different sizes.

[0011] The beneficial effects of the present invention are as follows:

[0012] 1. For the automatic bag making and bag opening device for POF film of the present invention, clamping and pulling out are performed through the operations of the first clamping jaw, the second clamping jaw and the L-shaped hook. The bag making is stable. By starting the second motor, the conveyor belt is driven to move, and then the moving block is driven to move, driving the second clamping jaw to move, and then adjusting the distance between the second clamping jaw and the first clamping jaw. At the same time, due to the setting of the opening teeth, the distance between the second clamping jaw and the first clamping jaw is adjusted to adapt to film materials of different sizes, without the need for additional replacement operations. The operation is simple, and due to the function of the adjusting part, the placement rack does not affect the movement and adjustment of the second clamping jaw.

[0013] 2. For the automatic bag making and bag opening device for POF film of the present invention, when cutting with the hot cutting knife, first, the fifth cylinder is moved upward to make the lining plate and the film material mutually attached, and then cutting is performed using the hot cutting knife, which can ensure that the cutting position is cut off, avoiding poor cutting quality, leakage or curling phenomena. Description of the Drawings

[0014] The present invention will be further described below with reference to the drawings.

[0015] Figure 1 is the three-dimensional view of the present invention;

[0016] Figure 2 is the rear view of the present invention;

[0017] Figure 3 is the partial view of the present invention;

[0018] Figure 4 is the partial three-dimensional view of the present invention;

[0019] Figure 5 is the partial view of the body;

[0020] In the figure: 1, machine body; 11, first cylinder; 12, lower pressure plate; 13, positioning plate; 14, opening teeth; 15, moving seat; 16, first motor; 17, lead screw; 18, first slide rail; 19, first clamping jaw; 2, second clamping jaw; 21, L-shaped hook; 22, lower pressure seat; 23, second cylinder; 24, hot cutter; 25, third cylinder; 26, film feeding mechanism; 27, film placing mechanism; 28, second slide rail; 29, upper opening plate; 3, lower opening plate; 31, fourth cylinder; 32, placement rack; 33, second electric machine; 34, conveying roller; 35, conveying belt; 36, limiting groove; 4, guide roller; 41, adjusting roller; 42, rotating block; 43, limiting column; 5, first roller; 51, annular opening groove; 52, second roller; 53, annular block; 54, barb; 55, third roller; 56, fixed column; 57, irregular disk; 58, rotating column; 59, grip block; 6, fixed disk; 61, third motor; 62, rotating shaft; 63, fifth cylinder; 64, lining plate; 65, fixed plate; 66, slide groove; 67, cutting seat. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] like Figures 1 to 5As shown in the figure, an automatic bag-making and bag-opening device for a POF film according to an embodiment of the present invention includes a machine body 1, a film feeding mechanism 26, a film releasing mechanism 27, and a first motor 16; first cylinders 11 are fixedly connected to opposite side walls on both sides of the machine body 1; a lower pressing plate 12 is fixedly connected to the bottom end of the output end of the first cylinder 11; a positioning plate 13 is fixedly connected between the side walls on both sides of the machine body 1; the positioning plate 13 is located directly below the lower pressing plate 12, and opening teeth 14 are provided on both the lower pressing plate 12 and the positioning plate 13 in a relatively corresponding distribution; a second slide rail 28 is fixedly connected to the side wall of the machine body 1; an upper opening plate 29 and a lower opening plate 3 are slidably connected to the second slide rail 28, and both the upper opening plate 29 and the lower opening plate 3 are respectively adjusted up and down by a fourth cylinder 31; a second cylinder 23 is fixedly connected to the top of the machine body 1, and a lower pressing seat 22 is fixedly connected to the bottom end of the second cylinder 23; a hot cutting knife 24 is provided in the lower pressing seat 22, a third cylinder 25 is fixedly connected to the lower pressing seat 22, and the output end of the third cylinder 25 is fixedly connected to the hot cutting knife 24; the hot cutting knife 24 is located in front of the opening teeth 14; a placement rack 32 is fixedly connected to the side wall of the machine body 1; a lead screw 17 is provided at the output end of the first motor 16, and the end of the lead screw 17 is rotatably connected to the side wall of the machine body 1; a moving seat 15 is connected to the lead screw 17 through a lead screw nut pair; a pair of first slide rails 18 are fixedly connected to the side wall of the machine body 1, and the moving seat 15 is slidably connected to the first slide rails 18; a first jaw 19 and a second jaw 2 are provided on the moving seat 15 through an adjusting member; a fixing seat is fixedly connected to the side wall of the moving seat 15, and an L-shaped hook 21 is provided on the fixing seat through a rotating member; in the prior art, the bag-making method of a traditional corner-cutting film wrapping machine is to pull the film with a film pulling rod to make a bag. When the size of the bag changes, different lengths of film pulling rods need to be replaced, the operation is cumbersome, and the replacement is inconvenient. Moreover, the film pulling rod moves to pull the film, and it is easy to swing due to vibration, the bag-making is unstable, and defective products are likely to appear;Therefore, when the present invention works, it uses clamping jaws for operation. During work, first place the raw material film into the film feeding mechanism 27. Here, the film feeding mechanism 27 is prior art and will not be elaborated. Then adjust the film material through the film conveying mechanism 26, and place the end part between the lower pressing plate 12 and the positioning plate 13. Start the first cylinder 11 to move the lower pressing plate 12 downward to press and hold the film material. At the same time, the fourth cylinder 31 adjusts the upper opening plate 29 and the lower opening plate 3 for pressing treatment. Then start the first motor 16 to drive the lead screw 17 to rotate, driving the moving seat 15 to move. The movement of the moving seat 15 drives the first clamping jaw 19, the second clamping jaw 2 and the L-shaped hook 21 to move. Then open the upper opening plate 29 and the lower opening plate 3, and let the L-shaped hook 21 hook into the film material through the rotating part. At the same time, the first clamping jaw 19 and the second clamping jaw 2 enter between the opening teeth 14 to clamp the film material located at the opening teeth 14. Open the lower pressing plate 12, and then reverse the first motor 16 to drive the first clamping jaw 19, the second clamping jaw 2 and the L-shaped hook 21 to pull out the film material. After pulling out to the film making position, the first cylinder 11 drives the lower pressing plate 12 to press and hold again. Then start the second cylinder 23 to move the lower pressing seat 22 downward, and then start the third cylinder 25 to move the hot cutting knife 24 downward to cut and seal the film material to complete film making. Then repeat the above operations, and perform clamping and pulling through the operations of the first clamping jaw 19, the second clamping jaw 2 and the L-shaped hook 21. The bag making is stable. At the same time, because both the first clamping jaw 19 and the second clamping jaw 2 can move up and down through the adjusting parts. Here, the adjusting parts and the rotating parts are prior art and will not be elaborated.;

[0023] A limiting groove 36 is formed on the moving seat 15; a second motor 33 is fixedly connected to the moving seat 15; a set of conveying rollers 34 are arranged on the side wall of the moving seat 15. The set of conveying rollers 34 are driven by a conveyor belt 35. The second motor 33 drives the conveying rollers 34 to rotate, and the first clamping jaw 19 is fixedly connected to the conveyor belt through a moving block, and the moving block is slidably connected in the limiting groove 36. During work, when making bags of different sizes, at this time, start the second motor 33 to drive the conveyor belt 35 to move, thereby driving the moving block to move, driving the second clamping jaw 2 to move, and then adjusting the distance between the second clamping jaw 2 and the first clamping jaw 19. At the same time, due to the arrangement of the opening teeth 14, adjusting the distance between the second clamping jaw 2 and the first clamping jaw 19 to adapt to film materials of different sizes does not require additional replacement operations, and the operation is simple. At the same time, due to the function of the adjusting parts, the placing rack 32 will not affect the movement and adjustment of the second clamping jaw 2.

[0024] The film feeding mechanism 26 includes a set of guide rollers 4; a set of the guide rollers 4 are rotatably connected between the side walls on both sides of the machine body 1; rotating blocks 42 are rotatably connected to the side walls on both sides of the machine body 1, and an adjusting roller 41 is rotatably connected between a pair of the rotating blocks 42; the rotating blocks 42 are fixed by a clamping member; limiting columns 43 are fixedly connected to the side walls on both sides of the machine body 1; during operation, the film feeding mechanism 26 performs guiding through a set of guide rollers 4, and at the same time, an adjusting roller 41 is provided. The position of the adjusting roller 41 can be adjusted by the rotation of the rotating block, so as to adjust the tension of the film material. At the same time, the clamping member of the rotating block 42 is a prior art and will not be elaborated.

[0025] A first roller 5 is rotatably connected between the side walls on both sides of the machine body 1; a set of annular opening grooves 51 are formed in the first roller 5; a third roller 55 is rotatably connected to one side wall of the machine body 1; a pair of fixed disks 6 are fixedly connected to the third roller 55, and a second roller 52 is rotatably connected between the pair of fixed disks 6; a third motor 61 is fixedly connected to one side wall of the machine body 1, and a rotating shaft 62 is provided at the output end of the third motor 61. The rotating shaft 62 drives the second roller 52 to rotate through a transmission member in the fixed disk 6; an annular block 53 is fixedly connected to the outer side wall of the second roller 52, and a set of barbs 54 are fixedly connected between the pair of annular blocks 53; a fixed column 56 is fixedly connected to the third roller 55; a rotating column 58 is rotatably connected to the side wall of the machine body 1, and an irregular disk 57 is fixedly connected to one end of the rotating column 58, and a grip block 59 is fixedly connected to the other end. The irregular disk 57 and the fixed column 56 are in contact with each other; during operation, to facilitate the subsequent division of the bag making, the first roller 5 and the second roller 52 are provided. Barbs 54 are provided on the second roller 52. During operation, by rotating the grip block 59 and then adjusting the irregular disk 57 through the rotating column 58, the position of the third roller 55 is adjusted by adjusting the fixed column 56, so that the second roller 52 fits on the first roller 5. Then, the third motor 61 drives the transmission member in the fixed disk 6 through the rotating shaft 62 to drive the second roller 52 to rotate, so as to cut holes in the film material, facilitating subsequent division. At the same time, since the third roller 55 and the rotating shaft 62 are on the same horizontal line, the adjustment of the third roller 55 will not affect the rotation of the rotating shaft 62, nor will it affect the adjustment driven by the transmission member. The transmission member is a prior art.

[0026] A pair of fifth cylinders 63 are fixedly connected to the bottom end of the machine body 1 through a limiting plate, and a lining plate 64 is fixedly connected to the output end of the fifth cylinder 63; the lining plate 64 is located directly below the hot cutting knife 24; during operation, when cutting with the hot cutting knife 24, first, the fifth cylinder 63 moves upward to make the lining plate 64 fit with the film material, and then the hot cutting knife 24 is used for cutting, which can ensure that the cutting part is cut off and avoid poor cutting quality, such as leakage or curling.

[0027] Fixed plates 65 are fixedly connected to the side walls on both sides of the body 1; a sliding groove 66 is formed in the fixed plate 65; a pressure cutting seat 67 is slidably connected to the sliding groove 66; an ear cutting knife is arranged in the pressure cutting seat 67, and the ear cutting knife is driven up and down by a cylinder; during operation, when moving the film material through the first clamping jaw 19, the second clamping jaw 2 and the L-shaped hanging hook 21, at this time, the ear easy-tearing line of the film material is cut by the ear cutting knife in the pressure cutting seat 67. Since the pressure cutting seat 67 can move in the sliding groove 66, it is convenient to adjust according to film materials of different sizes.

[0028] Working principle: The bag-making method of traditional corner-cutting film wrapping machines is to use a film pulling rod to pull the film to make bags. When the size of the bag changes, different lengths of film pulling rods need to be replaced, which is cumbersome to operate and inconvenient to replace. Moreover, when the film pulling rod moves to pull the film, it is easy to swing due to vibration, resulting in unstable bag making and prone to defective products. Therefore, when the present invention works, it uses clamping jaws for operation. During operation, first, the raw material film is placed into the film feeding mechanism 27. Here, the film feeding mechanism 27 is prior art and will not be elaborated. Then, the film material is adjusted through the film conveying mechanism 26, and the end is placed between the lower pressing plate 12 and the positioning plate 13. The first cylinder 11 is started to move the lower pressing plate 12 downward to press the film material. At the same time, the fourth cylinder 31 adjusts the upper opening plate 29 and the lower opening plate 3 for pressing treatment. Then, the first motor 16 is started to drive the lead screw 17 to rotate, driving the moving seat 15 to move. The movement of the moving seat 15 drives the first clamping jaw 19, the second clamping jaw 2, and the L-shaped hook 21 to move. Then, the upper opening plate 29 and the lower opening plate 3 are opened, and the L-shaped hook 21 is hooked into the film material through the rotating part. At the same time, the first clamping jaw 19 and the second clamping jaw 2 enter between the opening teeth 14 to clamp the film material located at the opening teeth 14. The lower pressing plate 12 is opened, and then the first motor 16 is reversed to drive the first clamping jaw 19, the second clamping jaw 2, and the L-shaped hook 21 to pull out the film material. After pulling out to the film-making position, the first cylinder 11 drives the lower pressing plate 12 to press again. Then, the second cylinder 23 is started to move the lower pressing seat 22 downward, and then the third cylinder 25 is started to move the hot cutting knife 24 downward to cut and seal the film material to complete film making. Then, the above operations are repeated, and the film material is clamped and pulled out through the operations of the first clamping jaw 19, the second clamping jaw 2, and the L-shaped hook 21, resulting in stable bag making. At the same time, since both the first clamping jaw 19 and the second clamping jaw 2 can move up and down through the adjusting parts. Here, the adjusting parts and the rotating parts are prior art and will not be elaborated;When making bags of different sizes, the second motor 33 is started at this time to drive the conveyor belt 35 to move, thereby driving the moving block to move, driving the second jaw 2 to move, and then adjusting the distance between the second jaw 2 and the first jaw 19. At the same time, due to the setting of the opening teeth 14, the distance between the second jaw 2 and the first jaw 19 is adjusted to suit film materials of different sizes, and no additional replacement operation is required, which is simple to operate. At the same time, due to the function of the adjusting member, the placement rack 32 will not affect the movement and adjustment of the second jaw 2. The film feeding mechanism 26 is guided by a set of guide rollers 4. At the same time, an adjusting roller 41 is provided. The adjusting roller 41 can adjust the position of the adjusting roller 41 by rotating, and then adjust the tension of the film material. At the same time, the positioning member of the rotating block 42 is the prior art and will not be elaborated. To facilitate the subsequent splitting process of the bag making, the first roller 5 and the second roller 52 are provided. Barbs 54 are provided on the second roller 52. During operation, the irregular disc 57 is adjusted by rotating the holding block 59 and then through the rotating column 58, and then the position of the third roller 55 is adjusted by adjusting the fixed column 56 to make the second roller 52 fit on the first roller 5. Then, the third motor 61 drives the transmission member in the fixed disc 6 through the rotating shaft 62 to drive the second roller 52 to rotate, thereby cutting holes in the film material to facilitate the subsequent splitting process. At the same time, since the third roller 55 and the rotating shaft 62 are on the same horizontal line, the adjustment of the third roller 55 will not affect the rotation of the rotating shaft 62, nor will it affect the drive through the transmission member. The transmission member is the prior art. When cutting with the hot cutting knife 24, first, the fifth cylinder 63 moves upward to make the lining plate 64 fit with the film material, and then the hot cutting knife 24 is used for cutting, which can ensure that the cutting part is cut off, avoiding poor cutting quality, such as leakage or curling. When moving the film material through the first jaw 19, the second jaw 2 and the L-shaped hook 21, the hanging ear easy tear line of the film material is cut by the hanging ear cutter in the pressing seat 67. Since the pressing seat 67 can move in the sliding groove 66, it is convenient to adjust according to film materials of different sizes.;

[0029] The above front, back, left, right, up, and down are all based on the Figure 1 in the specification drawings. Taking the observer's perspective as the standard, the side of the device facing the observer is defined as the front, and the left side of the observer is defined as the left, and so on.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present invention.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic bag-making and bag-opening device for POF film, characterized in that: It includes a machine body (1), a film feeding mechanism (26), a film releasing mechanism (27) and a first motor (16); on the opposite side walls of both sides of the machine body (1), first cylinders (11) are fixedly connected; at the bottom end of the output end of the first cylinder (11), a lower pressing plate (12) is fixedly connected; between the side walls on both sides of the machine body (1), a positioning plate (13) is fixedly connected; the positioning plate (13) is located directly below the lower pressing plate (12), and opening teeth (14) are provided on both the lower pressing plate (12) and the positioning plate (13) in a relatively corresponding distribution; on the side wall of the machine body (1), a second slide rail (28) is fixedly connected; on the second slide rail (28), an upper opening plate (29) and a lower opening plate (3) are slidably connected, and both the upper opening plate (29) and the lower opening plate (3) are respectively adjusted up and down by a fourth cylinder (31); at the top of the machine body (1), a second cylinder (23) is fixedly connected, and at the bottom end of the second cylinder (23), a lower pressing seat (22) is fixedly connected; inside the lower pressing seat (22), a hot cutting knife (24) is provided, and on the lower pressing seat (22), a third cylinder (25) is fixedly connected, and the output end of the third cylinder (25) and the hot cutting knife (24) are fixedly connected to each other; the hot cutting knife (24) is located at the front side of the opening teeth (14); on the side wall of the machine body (1), a placement rack (32) is fixedly connected; at the output end of the first motor (16), a lead screw (17) is provided, and the end of the lead screw (17) is rotatably connected to the side wall of the machine body (1); on the lead screw (17), a moving seat (15) is connected through a lead screw nut pair; on the side wall of the machine body (1), a pair of first slide rails (18) are fixedly connected, and the moving seat (15) is slidably connected to the first slide rails (18); on the moving seat (15), a first clamping jaw (19) and a second clamping jaw (2) are provided through an adjusting member; on the side wall of the moving seat (15), a fixed seat is fixedly connected, and on the fixed seat, an L-shaped hook (21) is provided through a rotating member; A limiting groove (36) is provided on the moving seat (15); a second motor (33) is fixedly connected to the moving seat (15); on the side wall of the moving seat (15), a group of conveying rollers (34) are provided, and a group of conveying rollers (34) are driven by a conveyor belt (35), the second motor (33) drives the conveying rollers (34) to rotate, and the first clamping jaw (19) is fixedly connected to the conveyor belt through a moving block, and the moving block is slidably connected in the limiting groove (36).

2. The automatic bag-making and bag-opening device for POF film according to claim 1, characterized in that: The film feeding mechanism (26) includes a group of guide rollers (4); a group of the guide rollers (4) are rotatably connected between the side walls on both sides of the machine body (1); on the side walls on both sides of the machine body (1), rotating blocks (42) are rotatably connected, and between a pair of rotating blocks (42), an adjusting roller (41) is rotatably connected; the rotating blocks (42) are fixed through a positioning member; on the side walls on both sides of the machine body (1), limiting columns (43) are fixedly connected.

3. The automatic bag-making and bag-opening device for POF film according to claim 2, characterized in that: A first roller (5) is rotatably connected between the side walls of both sides of the machine body (1); a group of annular opening grooves (51) are formed on the first roller (5); a third roller (55) is rotatably connected to the side wall of one side of the machine body (1); a pair of fixed disks (6) are fixedly connected to the third roller (55), and a second roller (52) is rotatably connected between the pair of fixed disks (6); a third motor (61) is fixedly connected to the side wall of one side of the machine body (1), and a rotating shaft (62) is provided at the output end of the third motor (61), and the rotating shaft (62) ) drives the second roller (52) to rotate through the transmission member in the fixed disk (6); an annular block (53) is fixedly connected to the outer wall of the second roller (52), and a group of barbs (54) is fixedly connected between a pair of annular blocks (53); a fixed column (56) is fixedly connected to the third roller (55); a rotating column (58) is rotatably connected to the side wall of the body (1), and an irregular disc (57) is fixedly connected to one end of the rotating column (58), and a gripping block (59) is fixedly connected to the other end, and the irregular disc (57) and the fixed column (56) are in contact with each other.

4. The POF film automatic bag making and bag opening device according to claim 3, Features: A pair of fifth cylinders (63) are fixedly connected to the bottom end of the machine body (1) via a limiting plate, and a lining plate (64) is fixedly connected to the output end of the fifth cylinder (63); the lining plate (64) is located directly below the hot cutting knife (24).

5. The POF film automatic bag making and bag opening device according to claim 4, Features: A fixing plate (65) is fixedly connected to the side walls of both sides of the machine body (1); a sliding groove (66) is provided on the fixing plate (65); a pressing and cutting seat (67) is slidably connected to the sliding groove (66); a hanging ear cutter is provided in the pressing and cutting seat (67), and the hanging ear cutter is driven up and down by a cylinder.

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