Broken film detection device of center sealing machine

Abstract

The utility model discloses a palm closing machine broken film detection device which comprises a first base and a second base, the first base is installed at one end of the second base, an unwinding roller is installed at the end, away from the second base, of the front end face of the first base, and a fixing plate is installed at the end, close to the second base, of the front end face of the first base. A mounting plate is mounted on the front end face of the fixing plate, a conveying mechanism is mounted at the top of the fixing plate, and a tension roller is mounted at the opposite end of the inner side of the second base. When an original film is broken in the conveying process, the original film is clamped between the conveying rollers and is difficult to take out, and at the moment, the arranged pressing block moves downwards to drive the second set of rotating rods and the fourth set of rotating rods to move downwards to compress the springs; at the moment, the conveying rollers connected with the second group of rotating rods and the fourth group of rotating rods move downwards, so that the tension of the original film between the adjacent conveying rollers is reduced, and the original film can be quickly taken out from the space between the conveying rollers.

Description

Technical Field

[0001] The utility model relates to the technical field of palm-jointing machines, in particular to a film breakage detection device for palm-jointing machines. Background Art

[0002] Printing lamination refers to the application of a layer of transparent plastic film on paper products. Specifically, if protective film is required for areas that are prone to wear, such as the cover of a printed product manual and the outer surface of a paper box, a layer of film should be applied after printing and before folding and cutting. This layer of film must be very transparent, have good toughness, uniform texture, no pinholes or bubbles, and a very smooth surface.

[0003] At present, the high-speed glue sealing machines used for printing film production on the market will occasionally break the original film when running at high speed. Due to the fast operation of the sealing machine, the broken film is not fixed, and the manual shutdown response is not timely, resulting in waste of original film in the sealing process. In addition, the original film is stuck in the rotating roller due to high-speed inertia, which is inconvenient and time-consuming to clean, affecting the startup efficiency.

[0004] Therefore, it is necessary to provide a film break detection device for a hand-jointed machine to solve the above technical problems. Utility Model Content

[0005] The purpose of the present invention is to provide a device for detecting broken films in a palm-joining machine, so as to solve the problems in the above-mentioned background technology that the palm-joining machine runs fast, the broken films are not fixed, and the manual shutdown response is not timely, resulting in waste of original film in the palm-joining process, and the original film is stuck in the rotating roller due to high-speed inertia, which is inconvenient to clean and time-consuming, affecting the startup efficiency. The technical solution of the present invention is aimed at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a film break detection device for a palm-joining machine, comprising a first base and a second base, and the first base is mounted on one end of the second base, a unwinding roller is mounted on the end of the front end surface of the first base away from the second base, a fixing plate is mounted on the end of the front end surface of the first base close to the second base, a mounting plate is mounted on the front end surface of the fixing plate, a transport mechanism is mounted on the top of the fixing plate, a tension roller is mounted on the inner side opposite to the second base, and a winding roller is mounted on the inner side end of the second base away from the first base.

[0007] Preferably, a first limiting roller is installed at the bottom of the center surface between the unwinding roller and the fixed plate, and a second limiting roller is installed at one end of the rear end surface of the mounting plate close to the unwinding roller.

[0008] Preferably, the transport mechanism includes connecting plates installed at the front and rear ends of the top of the fixed plate, transport rollers are equidistantly installed at the opposite ends of the connecting plates, and three groups of V-shaped pressure plates are equidistantly arranged at the top end of the fixed plate facing the second base.

[0009] Preferably, an inner groove is opened inside the connecting plate, and the inner groove is equidistantly provided with rotating rods that are rotatably connected to the axial end of the transport roller through bearings. The bottoms of the second and fourth groups of rotating rods are connected to springs, and the tops of the second and fourth groups of rotating rods are connected to C-shaped plates, and the tops of the C-shaped plates are connected to pressure blocks.

[0010] Preferably, a through-beam photoelectric sensor is installed on one end of the front end surface of the first base close to the second base.

[0011] Preferably, a mounting seat is connected to the top of one end of the inner side of the second base near the fixed plate, a fixing rod is connected to the opposite end of the mounting seat, and a fixing seat is installed at both ends of the outer wall of the fixing rod near the center, and a third limiting roller is rotatably connected to the bottom of the opposite end of the fixing seat.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] When the original film breaks during transportation, the original film will be stuck between the transport rollers and difficult to be taken out. At this time, the provided pressure block moves downward to drive the second and fourth groups of rotating rods to move downward to compress the spring. At this time, the transport rollers connected to the second and fourth groups of rotating rods will move downward, thereby reducing the tension of the original film between the adjacent transport rollers, so that the original film can be quickly taken out from between the transport rollers.

[0014] The utility model can quickly detect when the original film is broken by setting a corresponding photoelectric sensor. The corresponding photoelectric sensor is added in the area where the original film passes through the palm, and is connected in parallel with the original equipment stop system. When the original film exists, the photoelectric corresponding model is blocked, and the equipment operates normally. On the contrary, the photoelectric sensor detects that there is no film, which will immediately cause the equipment to stop within two seconds. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a first front view structural diagram of the present utility model;

[0017] Figure 3 This is a second front view structural diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the connection between the transport mechanism and the fixed plate of the utility model;

[0019] Figure 5 This is a front view structural diagram of the connecting plate of the utility model;

[0020] Figure 6 This is a schematic diagram of the top structure of the connecting plate of the utility model.

[0021] In the figure: 1. First base; 2. Second base; 3. Unwinding roller; 4. Fixed plate; 5. Mounting plate; 6. Transport mechanism; 601. Connecting plate; 602. Transport roller; 603. V-shaped pressure plate; 7. Tension roller; 8. Winding roller; 9. First limiting roller; 10. Second limiting roller; 11. Inner groove; 12. Rotating rod; 13. Spring; 14. C-shaped plate; 15. Pressing block; 16. Mounting seat; 17. Fixed rod; 18. Fixed seat; 19. Third limiting roller; 20. Opposing photoelectric sensor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or connected in an integral manner; they can be mechanically connected or electrically connected; they can be directly connected, indirectly connected through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The following describes the embodiments of the present invention based on its overall structure.

[0024] See also Figure 1-6A film break detection device for a palm-jointing machine includes a first base 1 and a second base 2, and the first base 1 is installed at one end of the second base 2, a reeling roller 3 is installed at the end of the front end surface of the first base 1 away from the second base 2, a fixing plate 4 is installed at the end of the front end surface of the first base 1 close to the second base 2, a mounting plate 5 is installed at the front end surface of the fixing plate 4, a transport mechanism 6 is installed on the top of the fixing plate 4, a tension roller 7 is installed at the inner side opposite to the end of the second base 2, and a reeling roller 8 is installed at the inner side of the second base 2 away from the first base 1.

[0025] like Figure 1-6 As shown, a first limiting roller 9 is installed at the bottom of the center surface between the unwinding roller 3 and the fixed plate 4, and a second limiting roller 10 is installed at the rear end surface of the mounting plate 5 close to one end of the unwinding roller 3. The first limiting roller 9 and the second limiting roller 10 can limit the transported original film with sufficient tension to reduce the possibility of wrinkles when transporting at the initial position.

[0026] like Figure 1-6 As shown, the transport mechanism 6 includes a connecting plate 601 installed at the front and rear ends of the top of the fixed plate 4, and transport rollers 602 are equidistantly installed at the opposite ends of the connecting plate 601. Three groups of V-shaped pressure plates 603 are equidistantly arranged at one end of the top of the fixed plate 4 facing the second base 2. The transport rollers 602 are arranged so that the original film is interlaced and wound around the outer wall of the transport roller 602 in sequence, so that the original film not only has good tension during transportation, but also has a flattening effect.

[0027] like Figure 1-6 As shown, an inner groove 11 is provided inside the connecting plate 601, and rotating rods 12 equidistantly arranged in the inner groove 11 are rotatably connected to the axial end of the transport roller 602 through bearings. The bottom of the second and fourth groups of rotating rods 12 are connected to springs 13, and the tops of the second and fourth groups of rotating rods 12 are connected to C-shaped plates 14, and the tops of the C-shaped plates 14 are connected to pressure blocks 15. When the original film breaks during transportation, the original film will be stuck between the transport rollers 602 and difficult to remove. At this time, the set pressure blocks 15 can move downward to drive the second and fourth groups of rotating rods 12 to move downward and compress the springs 13. At this time, the transport rollers 602 connected to the second and fourth groups of rotating rods 12 will move downward, thereby reducing the tension of the original film between adjacent transport rollers 602, so that the original film can be quickly removed from between the transport rollers 602.

[0028] like Figure 1-6As shown, a through-beam photoelectric sensor 20 is installed at one end of the front end face of the first base 1 close to the second base 2. The through-beam photoelectric sensor 20 can quickly detect when the original film is broken. The through-beam photoelectric sensor 20 is added in the area where the original film passes through the palm, and the original equipment is stopped in parallel. In the system, when the original film exists, the photoelectric through-beam model is blocked, and the equipment operates normally. On the contrary, the photoelectric sensor detects that there is no film, which will immediately cause the equipment to stop within 2 seconds.

[0029] like Figure 1-6 As shown, a mounting seat 16 is connected to the top of one end of the inner side of the second base 2 near the fixed plate 4, a fixing rod 17 is connected to the opposite end of the mounting seat 16, and a fixing seat 18 is installed at both ends of the outer wall of the fixing rod 17 near the center, and a third limiting roller 19 is rotatably connected to the bottom of the opposite end of the fixing seat 18. The third limiting roller 19 is provided to perform tension limiting when the original film is transported from one end of the first base 1 to the inner side of the second base, so as to avoid the situation where insufficient tension causes transportation deviation and thus wrinkles.

[0030] Working principle: When in use, the original film is put on the outer wall of the unwinding roller 3, and then the unwinding roller 3 is driven to rotate by the driving device. The first limiting roller 9 and the second limiting roller 10 are provided to limit the transported original film, with sufficient tension, which reduces the possibility of wrinkles when transporting at the initial position. The original film is staggered and wound around the outer wall of the transport roller 602 in sequence through the provided transport roller 602, so that the original film not only has good tension during transportation, but also has a flattening effect. When the original film breaks during transportation, the original film will be stuck between the transport rollers 602 and difficult to remove. At this time, the set pressure block 15 moves downward to drive the second and fourth groups of rotating rods 12 to move downward to compress the spring 13. At this time, the second and fourth groups of rotating rods 12 are connected. The transport rollers 602 connected by the four sets of rotating rods 12 will move downward to reduce the tension of the original film between adjacent transport rollers 602, so that the original film can be quickly taken out from between the transport rollers 602. The set photoelectric sensor 20 can quickly detect when the original film is broken. The photoelectric sensor 20 is added to the area where the original film passes through the palm, and the original equipment is stopped in parallel. When the original film exists, the photoelectric sensor is blocked, and the equipment runs normally. On the contrary, the photoelectric sensor detects that there is no film, which will immediately cause the equipment to stop within 2 seconds. The third limiting roller 19 is set to perform tension limiting when the original film is transported from one end of the first base 1 to the inner side of the second base to avoid insufficient tension causing transport deviation and wrinkles.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A film break detection device for a palm-jointing machine, comprising a first base (1) and a second base (2), wherein the first base (1) is mounted on one end of the second base (2), and is characterized in that: A reeling roller (3) is installed at the end of the front end face of the first base (1) away from the second base (2), a fixing plate (4) is installed at the end of the front end face of the first base (1) close to the second base (2), a mounting plate (5) is installed at the front end face of the fixing plate (4), a transport mechanism (6) is installed on the top of the fixing plate (4), a tension roller (7) is installed at the opposite end of the inner side of the second base (2), and a reeling roller (8) is installed at the end of the inner side of the second base (2) away from the first base (1).

2. The film breakage detection device for a palm-jointing machine according to claim 1, characterized in that: A first limiting roller (9) is installed at the bottom of the center surface between the unwinding roller (3) and the fixed plate (4), and a second limiting roller (10) is installed at one end of the rear end surface of the mounting plate (5) close to the unwinding roller (3).

3. The film breakage detection device for a palm-jointing machine according to claim 1, characterized in that: The transport mechanism (6) comprises connecting plates (601) mounted at the front and rear ends of the top of the fixed plate (4), transport rollers (602) being equidistantly mounted at opposite ends of the connecting plate (601), and three groups of V-shaped pressing plates (603) being equidistantly mounted at one end of the top of the fixed plate (4) facing the second base (2).

4. The film breakage detection device for a palm-jointing machine according to claim 3, characterized in that: An inner groove (11) is provided inside the connecting plate (601), and rotating rods (12) are equidistantly arranged in the inner groove (11) and are rotatably connected to the axial end of the transport roller (602) through bearings. The bottoms of the second and fourth groups of rotating rods (12) are connected to springs (13), and the tops of the second and fourth groups of rotating rods (12) are connected to C-shaped plates (14), and the tops of the C-shaped plates (14) are connected to pressure blocks (15).

5. The film breakage detection device for a palm-jointing machine according to claim 4, characterized in that: A through-beam photoelectric sensor (20) is installed on one end of the front end surface of the first base (1) close to the second base (2).

6. The film breakage detection device for a palm-jointing machine according to claim 5, characterized in that: A mounting seat (16) is connected to the top of one end of the inner side of the second base (2) close to the fixed plate (4), and a fixing rod (17) is connected to the opposite end of the mounting seat (16). Fixed seats (18) are installed at both ends of the outer wall of the fixing rod (17) close to the center, and a third limiting roller (19) is rotatably connected to the bottom of the opposite end of the fixing seat (18).

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