Magnetic powder brake mechanism for unreeling labeling head

Abstract

The utility model discloses a magnetic powder brake mechanism for unreeling a labeling head, which relates to the technical field of mechanical structures and comprises a protective box, one side of the protective box is fixedly connected with a first fixing plate, a power component is arranged in the protective box and comprises a magnetic powder brake, the magnetic powder brake is fixedly connected to one side of the first fixing plate, and the first fixing plate is fixedly connected to the other side of the first fixing plate. A motor is fixedly connected to one side of the first fixing plate, a transmission wheel is fixedly connected to one side of the first fixing plate, a belt is arranged on the outer sides of the motor and the transmission wheel and wound around the motor and the transmission wheel, an auxiliary rod is slidably connected to one side of the first fixing plate, an auxiliary wheel is rotatably connected to one end of the auxiliary rod, and the auxiliary wheel is arranged on the belt. The pair of transmission wheels is arranged on the same horizontal line, and the magnetic powder brake is arranged below the pair of transmission wheels, so that the technical problem that the working efficiency is affected due to the fact that the belt is extremely easy to fall off when the motor rotates at a high speed, and the machine cannot be used normally is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical structures, in particular to a magnetic powder brake mechanism for unwinding a labeling head. Background Art

[0002] The magnetic powder brake mechanism for labeling head unwinding is a control device commonly used in label attaching equipment. In label attaching equipment, an unwinder is usually used to provide label material, and the magnetic powder brake mechanism is used to control the tension and speed of the unwinder to ensure the smooth supply and accurate attachment of label material. The magnetic powder brake mechanism is designed based on the principle of motion resistance of magnetic powder material. It consists of a fixed part and a rotatable part. Magnetic powder is clamped in the magnetic powder brake, and when an external magnetic field acts on the magnetic powder, the magnetic powder becomes viscous and generates resistance. This resistance can be controlled by adjusting the size of the magnetic field, thereby achieving damping and braking of the rotating part. In labeling head unwinding, the magnetic powder brake mechanism is usually installed on the unwinder. By controlling the size of the brake's magnetic field, the tension and speed of the unwinder can be adjusted to ensure the smooth supply of label material. When the tension needs to be increased, the magnetic field of the brake increases, increasing the resistance, thereby inhibiting the rotation of the unwinder; when the tension needs to be reduced, the magnetic field of the brake decreases, reducing the resistance, thereby allowing the unwinder to rotate freely. The magnetic powder brake mechanism plays a key control role in the unwinding of the labeling head. It can achieve precise control of the label material, ensure the accuracy and quality of the attachment, and prevent over-tension or looseness. At the same time, the magnetic powder brake has the characteristics of fast response, which can achieve rapid stop and start, and improve the stability and work efficiency of the equipment.

[0003] However, the above practicality still has shortcomings:

[0004] 1. When working, because the belt is extremely easy to fall off when the motor rotates at high speed, the machine cannot be used normally, thus affecting the work efficiency.

[0005] 2. Currently, the machines on the market are not visual, which will undoubtedly bring difficulties to the operators. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a magnetic powder brake mechanism for unwinding a labeling head, which solves the problem that the belt is extremely easy to fall off when the motor rotates at high speed, causing the machine to be unable to be used normally, thereby affecting the work efficiency.

[0007] To achieve the above purpose, the utility model proposes a magnetic powder brake mechanism for unwinding a labeling head, comprising a protective box, one side of which is fixedly connected to a first fixed plate, and a power assembly is arranged inside the protective box, wherein:

[0008] The power assembly includes a magnetic powder brake, which is fixedly connected to one side of a first fixed plate, a motor is fixedly connected to one side of the first fixed plate, a transmission wheel is fixedly connected to one side of the first fixed plate, belts are arranged on the outer sides of the motor and the transmission wheel, the belts are respectively wound around the motor and the transmission wheel, an auxiliary rod is slidably connected to one side of the first fixed plate, one end of the auxiliary rod is rotatably connected to the auxiliary wheel, and the auxiliary wheel is arranged on the belt.

[0009] Preferably, a pair of transmission wheels are provided, the pair of transmission wheels are arranged on the same horizontal line, the magnetic powder brake is arranged below the pair of transmission wheels, the magnetic powder brake and the auxiliary rod are arranged on the same horizontal line, and the motor is arranged below the magnetic powder brake.

[0010] Preferably, a door panel is provided on the outside of the protective box, a hinge is fixedly connected to the outside of the protective box, the hinge is respectively fixedly connected to the protective box and the door panel, a handle is fixedly connected to the side of the door panel away from the hinge, and a window is opened on the side wall of the protective box.

[0011] Preferably, a roller assembly is provided on the other side of the first fixed plate, and the roller assembly includes a unwinding shaft, the unwinding shaft is rotatably connected to the other side of the first fixed plate, the other side of the first fixed plate is rotatably connected to a winding shaft, the unwinding shaft and the winding shaft are on the same horizontal line, and the other side of the first fixed plate is rotatably connected to a plurality of traction shafts, and the traction shafts are arranged below the unwinding shaft and the winding shaft.

[0012] Preferably, the unwinding shaft, the reeling shaft and the traction shaft pass through the first fixed plate and extend into the protective box, and one end of the reeling shaft and the traction shaft extending into the protective box are fixedly connected to the transmission wheel and the motor respectively.

[0013] Preferably, the side of the roller assembly away from the first fixed plate is rotatably connected to a second fixed plate, and the second fixed plate is rotatably connected to the unwinding shaft, the winding shaft and the end of the traction shaft away from the first fixed plate respectively.

[0014] Preferably, the bottoms of the first fixing plate and the second fixing plate are fixedly connected to a base plate, the second fixing plate is fixedly connected to a fixing block on a side away from the roller assembly, the internal thread of the fixing block is connected to a fixing rod, and the top of the fixing rod is threadedly connected to a fixing nut.

[0015] Preferably, one end of the base plate is rotatably connected to an inclined plate, both ends of the inclined plate are fixedly connected to a pair of fixed columns, the inside of the pair of fixed columns is fixedly connected to a secondary rod, the outside of the secondary rod is slidably connected to a secondary block, the inside of a pair of secondary blocks is fixedly connected to a sliding rod, the outside of the sliding rod is slidably connected to a sliding block, the top of the sliding block is threadedly connected to a set screw, and one end of the set screw rests on the sliding rod.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. Through the setting of the auxiliary wheel, when the machine is working, the auxiliary wheel can be tightly attached to the belt, and then the position of the auxiliary rod can be controlled to tighten the belt so that the belt is in a taut state. By fixing the belt, it can effectively prevent the belt from falling off, maintain the normal operation of the equipment, reduce the risk of accidents, and improve the safety of the workplace. When the belt is fixed, it can better maintain the transmission efficiency. Fixing the belt can ensure the stability and efficiency of the transmission. By fixing the belt, friction and wear can be reduced, the service life of the belt can be extended, and the maintenance and replacement costs of the equipment can be reduced. Fixing the belt can reduce the relaxation and adjustment of the belt. This means that maintenance personnel can save time and energy and focus more on other important maintenance tasks.

[0018] 2. This patent uses a magnetic powder brake to control the unwinding tension. The magnetic powder brake is installed on the unwinding shaft. After power is turned on, it provides a reverse braking force for the unwinding. This method has two advantages. First, it can accurately and infinitely control the unwinding tension. Second, it is easy to operate. You only need to operate the tension control button, and it can be displayed visually. It can adapt to occasions with high labeling accuracy requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the protective box of the utility model;

[0021] Figure 3 It is a schematic diagram of the unwinding shaft structure of the utility model.

[0022] In the figure: 1. protective box; 11. door panel; 12. hinge; 13. handle; 14. window; 2. roller assembly; 21. unwinding shaft; 22. reeling shaft; 23. traction shaft; 3. first fixed plate; 4. second fixed plate; 5. bottom plate; 6. fixed block; 61. fixed rod; 62. fixed nut; 7. inclined plate; 71. fixed column; 72. auxiliary rod; 73. auxiliary block; 74. slider; 75. slide rod; 76. set screw; 8. power assembly; 81. magnetic powder brake; 82. motor; 83. transmission wheel; 84. belt; 85. auxiliary rod; 86. auxiliary wheel. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-3 As shown, a magnetic powder brake mechanism for unwinding a labeling head is provided. The magnetic powder brake mechanism 81 is externally provided with a tension controller. The operator can control the machine by manipulating the tension controller. Secondly, the tension controller is a visual controller. The operator can adapt to occasions with high requirements for labeling accuracy through visual display.

[0025] It includes a protection box 1, one side of which is fixedly connected to a first fixing plate 3, and a power assembly 8 is arranged inside the protection box 1, wherein:

[0026] The power assembly 8 includes a magnetic powder brake 81, which can control the speed of the rotating part by adjusting the size of the magnetic field. By increasing or decreasing the strength of the magnetic field, the damping effect of the magnetic powder can be changed, thereby controlling the rotation speed of the rotating part, which makes the magnetic powder brake 81 very useful in applications that require precise control of the rotation speed, such as winding, unwinding, rotating tables and other equipment. The magnetic powder brake 81 is fixedly connected to one side of the first fixed plate 3, and a motor 82 is fixedly connected to one side of the first fixed plate 3. A transmission wheel 83 is fixedly connected to one side of the first fixed plate 3. A belt 84 is arranged on the outer side of the motor 82 and the transmission wheel 83. The belt 84 is respectively wound around the motor 82 and the transmission wheel 83. The first fixed plate 3 An auxiliary rod 85 is slidably connected to one side of the auxiliary rod 85, and an auxiliary wheel 86 is rotatably connected to one end of the auxiliary rod 85. The auxiliary wheel 86 is set on the belt 84. When the machine is working, the auxiliary wheel 86 is tightly attached to the belt 84, and then the position of the auxiliary rod 85 is controlled to tighten the belt 84, so that the belt 84 is in a taut state. By fixing the belt 84, the belt 84 can be effectively prevented from falling off, the normal operation of the equipment can be maintained, the risk of accidents can be reduced, and the safety of the workplace can be improved. The belt 84 can better maintain the transmission efficiency in a fixed state. Fixing the belt 84 can ensure the stability and efficiency of the transmission. By fixing the belt 84, friction and wear can be reduced, the service life of the belt 84 can be extended, and the maintenance and replacement costs of the equipment can be reduced.

[0027] A pair of transmission wheels 83 are provided, the pair of transmission wheels 83 are arranged on the same horizontal line, the magnetic powder brake 81 is arranged below the pair of transmission wheels 83 , the magnetic powder brake 81 and the auxiliary rod 85 are arranged on the same horizontal line, and the motor 82 is arranged below the magnetic powder brake 81 .

[0028] A door panel 11 is provided on the outside of the protective box 1. A hinge 12 is fixedly connected to the outside of the protective box 1. The hinge 12 is fixedly connected to the protective box 1 and the door panel 11 respectively. A handle 13 is fixedly connected to the side of the door panel 11 away from the hinge 12. A window 14 is provided on the side wall of the protective box 1. The operator can see the situation inside the protective box 1 through the window 14. When a machine malfunctions, it can be promptly detected to prevent accidents.

[0029] A roller assembly 2 is provided on the other side of the first fixed plate 3, and the roller assembly 2 includes a reeling shaft 21, which is rotatably connected to the other side of the first fixed plate 3, and a reeling shaft 22 is rotatably connected to the other side of the first fixed plate 3. The unreeling shaft 21 and the reeling shaft 22 are on the same horizontal line, and a plurality of traction shafts 23 are rotatably connected to the other side of the first fixed plate 3, and the traction shafts 23 are arranged below the unreeling shaft 21 and the reeling shaft 22.

[0030] The unwinding shaft 21, the rewinding shaft 22 and the traction shaft 23 penetrate the first fixed plate 3 and extend into the protective box 1. The rewinding shaft 22 and the traction shaft 23 extend into the protective box 1 and are fixedly connected to the transmission wheel 83 and the motor 82 at one end. The magnetic powder brake 81 is used to control the unwinding tension. The magnetic powder brake 81 is installed on the unwinding shaft 21. After power is turned on, it provides a reverse braking force to the unwinding shaft 21. This method has two advantages. The first is that it can accurately control the unwinding tension steplessly. The second is that it is easy to operate and only needs to operate the tension control button, which is visually displayed. It can be adapted to occasions with high labeling accuracy requirements.

[0031] A second fixed plate 4 is rotatably connected to a side of the roller assembly 2 away from the first fixed plate 3. The second fixed plate 4 is rotatably connected to an end of the unwinding shaft 21, the winding shaft 22 and the traction shaft 23 away from the first fixed plate 3 respectively. A bottom plate 5 is fixedly connected to the bottom of the first fixed plate 3 and the second fixed plate 4. A fixed block 6 is fixedly connected to a side of the second fixed plate 4 away from the roller assembly 2. A fixed rod 61 is threadedly connected to the internal part of the fixed block 6. A fixed nut 62 is threadedly connected to the top of the fixed rod 61.

[0032] One end of the bottom plate 5 is rotatably connected to the inclined plate 7, and both ends of the inclined plate 7 are fixedly connected to a pair of fixed columns 71, the inside of the pair of fixed columns 71 is fixedly connected to the auxiliary rod 72, the outer side of the auxiliary rod 72 is slidably connected to the auxiliary block 73, the inner side of the pair of auxiliary blocks 73 is fixedly connected to the sliding rod 75, the outer side of the sliding rod 75 is slidably connected to the sliding block 74, the top of the sliding block 74 is threadedly connected to a fixing screw 76, and one end of the fixing screw 76 is against the sliding rod 75.

[0033] Working principle: When working, the magnetic powder brake 81 is used to control the unwinding tension. The magnetic powder brake 81 is installed on the unwinding shaft 21. After power is turned on, a reverse braking force is provided to the unwinding shaft 21. The labeling material is placed on the unwinding shaft 21. The traction shaft 23 provides power for paper feeding. The magnetic powder brake 81 provides a braking force opposite to the material feeding direction. The tension controller controls the magnetic powder brake 81 to output the braking force. The operation is simple and convenient. The work is now completed.

[0034] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A magnetic powder brake mechanism for unwinding a labeling head, characterized in that: The invention comprises a protection box (1), one side of which is fixedly connected to a first fixing plate (3), and a power assembly (8) is arranged inside the protection box (1), wherein: The power assembly (8) comprises a magnetic powder brake (81), the magnetic powder brake (81) is fixedly connected to one side of a first fixed plate (3), a motor (82) is fixedly connected to one side of the first fixed plate (3), a transmission wheel (83) is fixedly connected to one side of the first fixed plate (3), a belt (84) is arranged on the outer sides of the motor (82) and the transmission wheel (83), the belt (84) is respectively wound around the motor (82) and the transmission wheel (83), an auxiliary rod (85) is slidably connected to one side of the first fixed plate (3), one end of the auxiliary rod (85) is rotatably connected to an auxiliary wheel (86), and the auxiliary wheel (86) is arranged on the belt (84).

2. A magnetic powder brake mechanism for unwinding a labeling head according to claim 1, characterized in that: A pair of transmission wheels (83) are provided, the pair of transmission wheels (83) are arranged on the same horizontal line, the magnetic powder brake (81) is arranged below the pair of transmission wheels (83), the magnetic powder brake (81) and the auxiliary rod (85) are arranged on the same horizontal line, and the motor (82) is arranged below the magnetic powder brake (81).

3. The magnetic powder brake mechanism for unwinding a labeling head according to claim 1, characterized in that: The outer side of the protection box (1) is provided with a door panel (11), the outer side of the protection box (1) is fixedly connected with a hinge (12), the hinge (12) is respectively fixedly connected to the protection box (1) and the door panel (11), a handle (13) is fixedly connected to the side of the door panel (11) away from the hinge (12), and a window (14) is provided on the side wall of the protection box (1).

4. A magnetic powder brake mechanism for unwinding a labeling head according to claim 1, characterized in that: A roller assembly (2) is arranged on the other side of the first fixed plate (3), and the roller assembly (2) comprises a reeling shaft (21), the reeling shaft (21) is rotatably connected to the other side of the first fixed plate (3), a reeling shaft (22) is rotatably connected to the other side of the first fixed plate (3), the reeling shaft (21) and the reeling shaft (22) are located on the same horizontal line, and a plurality of traction shafts (23) are rotatably connected to the other side of the first fixed plate (3), and the traction shafts (23) are arranged below the reeling shaft (21) and the reeling shaft (22).

5. A magnetic powder brake mechanism for unwinding a labeling head according to claim 4, characterized in that: The unwinding shaft (21), the reeling shaft (22) and the traction shaft (23) pass through the first fixed plate (3) and extend into the protection box (1); one end of the reeling shaft (22) and the traction shaft (23) extending into the protection box (1) is fixedly connected to the transmission wheel (83) and the motor (82) respectively.

6. A magnetic powder brake mechanism for unwinding a labeling head according to claim 4, characterized in that: A second fixed plate (4) is rotatably connected to a side of the roller assembly (2) away from the first fixed plate (3), and the second fixed plate (4) is rotatably connected to an end of the unwinding shaft (21), the winding shaft (22) and the traction shaft (23) away from the first fixed plate (3).

7. A magnetic powder brake mechanism for unwinding a labeling head according to claim 6, characterized in that: The bottoms of the first fixing plate (3) and the second fixing plate (4) are both fixedly connected to a bottom plate (5); the side of the second fixing plate (4) away from the roller assembly (2) is fixedly connected to a fixing block (6); the interior of the fixing block (6) is threadedly connected to a fixing rod (61); the top of the fixing rod (61) is threadedly connected to a fixing nut (62).

8. A magnetic powder brake mechanism for unwinding a labeling head according to claim 7, characterized in that: One end of the bottom plate (5) is rotatably connected to an inclined plate (7), and both ends of the inclined plate (7) are fixedly connected to a pair of fixed columns (71), the inside of the pair of fixed columns (71) is fixedly connected to a secondary rod (72), the outer side of the secondary rod (72) is slidably connected to a secondary block (73), the inner side of the pair of secondary blocks (73) is fixedly connected to a sliding rod (75), the outer side of the sliding rod (75) is slidably connected to a sliding block (74), the top of the sliding block (74) is threadedly connected to a set screw (76), and one end of the set screw (76) is against the sliding rod (75).

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