Safety device special for roll paper film winding machine

Abstract

The utility model belongs to the technical field of film winding machines, and particularly relates to a safety device special for a roll paper film winding machine, which comprises a supporting rod, a fixing plate, a transmission mechanism, a safety door, a safety detection mechanism and a control system, the fixing plate is fixedly connected with the supporting rod, and the transmission mechanism comprises a motor, a belt wheel, a belt and a rotating shaft and is arranged between the supporting rod and the fixing plate. The safety detection mechanism comprises a stand column, an upper limiting rod, an upper limiting switch, a lower limiting rod and a lower limiting switch, the stand column and the lower limiting rod are fixedly connected with the ground plane, the upper limiting rod is fixedly connected with the stand column, the upper limiting switch is fixedly connected with the upper limiting rod, and the lower limiting switch is fixedly connected with the lower limiting rod. The safety closing device of the film winding machine has the advantages that the safety closing of the film winding machine in the working process is achieved, potential safety hazards caused by the swing arm are eliminated, and the operation safety of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of film wrapping machines, in particular to a special safety device for roll paper film wrapping machines. Background Art

[0002] In the papermaking process, film packaging is an important process in the production of roll paper, which usually requires the use of a film wrapping machine. The film wrapping machine is a device that drives the roll paper to rotate by rotating the roller, and at the same time, the swing arm rotates around the roll paper to wrap the film on the roll paper. When the film wrapping machine is working, there is a large safety hazard within the turning radius of its swing arm. In order to eliminate the safety hazard, a special safety device is required. Utility Model Content

[0003] The utility model aims at the above-mentioned problems and specifically designs a special safety device for a roll paper wrapping machine, so as to realize the safe closure of the wrapping machine during operation, eliminate the potential safety hazard caused by the swing arm, and improve the safety of equipment operation.

[0004] To achieve the above-mentioned purpose, the utility model provides a special safety device for a web wrapping machine, comprising a support rod, a fixed plate, a transmission mechanism, a safety door, a safety detection mechanism and a control system, the fixed plate being fixedly connected to the support rod via a connecting piece, the transmission mechanism being arranged between the support rod and the fixed plate, the safety door being hinged to the fixed plate via the transmission mechanism, the safety detection mechanism and the support rod being installed on the same ground plane, and the transmission mechanism, the safety detection mechanism and the wrapping machine are all communicatively connected to the control system.

[0005] By adopting the above technical scheme, the support rod and the fixed plate are used to support the safety door, the safety detection mechanism is used to transmit signals to the control system to determine the closing state of the safety door, and the transmission mechanism is used to receive instructions issued by the control system to drive the safety door to complete opening and closing. When the control system receives a rotation signal from the film wrapping machine, it immediately instructs the transmission mechanism to rotate forward to close the safety door. When the control system receives a stop signal from the film wrapping machine, it immediately instructs the transmission mechanism to reverse and open the safety door. By using this safety device, the safe closure of the film wrapping machine can be achieved during operation, the safety hazards caused by the swing arm can be eliminated, and the safety of equipment operation can be improved.

[0006] Furthermore, the safety detection mechanism includes a column, an upper limit rod, an upper limit switch, a lower limit rod and a lower limit switch, the column and the lower limit rod are fixedly connected to the ground plane, the upper limit rod is fixedly connected to the column, the upper limit switch is fixedly connected to the upper limit rod, and the lower limit switch is fixedly connected to the lower limit rod; the upper limit switch and the lower limit switch are respectively communicated with the control system.

[0007] Using the above technical solution, the upper limit switch is used to detect whether the safety door is in the open state, and the lower limit switch is used to detect whether the safety door is in the closed state. As a mechanical switch with high sensitivity, strong reliability, easy installation and simple maintenance, it can transmit signals in a timely and rapid manner, and feed back information to the control system to ensure effective safety protection of the wrapping machine.

[0008] Furthermore, the transmission mechanism includes a motor, a pulley, a belt and a rotating shaft. The motor is fixedly connected to the support rod, and the rotating shaft is rotatably connected to the fixed plate. There are multiple pulleys, which are respectively fixedly connected to the output shaft of the motor and the rotating shaft, and the belt is hung on the pulley; the safety door is mounted on the rotating shaft, and the motor is communicatively connected to the output end of the control system.

[0009] By adopting the above technical solution, the motor is used to receive instructions transmitted by the control system, the pulley and the belt are used to transmit power, and the rotating shaft is used to drive the safety door to rotate synchronously. The belt drive has the advantages of buffering and vibration absorption, simple structure, and low manufacturing cost, which ensures the smooth transmission of the safety door. In addition, it is easy to maintain, saves time, and improves the working efficiency of the film wrapping machine.

[0010] Furthermore, the fixed plate is also hinged with a rotating rod, and the rotating rod includes a plurality of sets of matching sleeves, one end of which is hinged to the fixed plate, and the other end of which is hinged to the safety door.

[0011] By adopting the above technical solution, the rotating rod is used to support the rotation of the safety door, thereby increasing the stability of the movement of the safety door and ensuring effective safety protection of the device.

[0012] Furthermore, the support rod is also fixedly connected with a dust cover, and the dust cover covers the transmission mechanism.

[0013] By adopting the above technical solution, the dust cover is used for dust protection of the transmission mechanism, which isolates impurities in the external environment from the transmission mechanism, increases the maintenance cycle and the service life of parts, and saves production costs.

[0014] In summary, the utility model has the following advantages and beneficial technical effects:

[0015] 1. The utility model utilizes a safety detection mechanism to detect the closed state of the safety door and transmits a signal to the control system. The control system outputs instructions to the transmission mechanism according to the movement state of the film wrapping machine to control the opening and closing of the safety door. The safety device is used to achieve safe closure during the operation of the film wrapping machine, eliminate the potential safety hazards caused by the swing arm, and improve the safety of equipment operation.

[0016] 2. The upper limit switch and the lower limit switch are used in the safety detection mechanism. As a mechanical switch with high sensitivity, strong reliability, easy installation and simple maintenance, it can timely feedback the opening and closing status information of the safety door to the control system to ensure the effective safety protection of the film wrapping machine.

[0017] 3. The transmission mechanism adopts a motor with belt drive, which has the advantages of buffering and vibration absorption, simple structure, and low manufacturing cost, ensuring the smooth transmission of the safety door. In addition, it is easy to maintain, saves time, and improves the working efficiency of the film wrapping machine; the rotating rod is used to support the rotation of the safety door, increase the stability of the safety door movement, and ensure effective safety protection of the device.

[0018] 4. The dust cover is used for dust protection of the transmission mechanism, isolating impurities in the external environment from the transmission mechanism, increasing the maintenance cycle and the service life of parts, and saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0022] Figure 3 It is the use state of the utility model Figure 1 ;

[0023] Figure 4 It is the use state of the utility model Figure 2 ;

[0024] Figure 5 It is a flow chart of the control system in the utility model.

[0025] The reference numerals in the accompanying drawings are:

[0026] 1. Support rod; 2. Fixed plate;

[0027] 3. Transmission mechanism; 31. Motor; 32. Pulley; 33. Belt; 34. Rotating shaft;

[0028] 4. Security door;

[0029] 5. Safety detection mechanism; 51. Column; 52. Upper limit rod; 53. Upper limit switch; 54. Lower limit rod; 55. Lower limit switch;

[0030] 6. Control system; 7. Rotating rod; 8. Dust cover; 9. Connecting parts. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-Figure 5 The utility model is further described in detail:

[0032] like Figure 1-Figure 5 As shown, the present embodiment discloses a special safety device for a web wrapping machine, comprising a support rod 1, a fixed plate 2, a transmission mechanism 3, a safety door 4, a safety detection mechanism 5 and a control system 6. The fixed plate 2 is fixedly connected to the support rod 1 by a connecting piece 9. The connecting piece 9 is a steel plate, and its two ends are respectively welded to the support rod 1 and the fixed plate 2. The transmission mechanism 3 is arranged between the support rod 1 and the fixed plate 2. The safety door 4 is hinged to the fixed plate 2 through the transmission mechanism 3. The safety detection mechanism 5 and the support rod 1 are fixedly installed on the same ground plane by fasteners, and the transmission mechanism 3, the safety detection mechanism 5 and the wrapping machine are all communicatively connected with the control system 6. The control system 6 is a PLC controller with a power supply module; the safety detection mechanism 5 comprises a column 51, an upper limit rod 52, an upper limit switch 53, a lower limit rod 54 and a lower limit switch 55. The column 51 and the lower limit rod 54 are vertically arranged and fixedly connected to the ground plane by fasteners. The upper limit rod 52 is horizontally arranged and welded on the column 51. The switch 53 is fixedly connected to the upper limit rod 52 by fasteners, and the lower limit switch 55 is fixedly connected to the lower limit rod 54 by fasteners. The housing of the PLC controller is fixedly mounted on the column 51 by fasteners, and the upper limit switch 53 and the lower limit switch 55 are electrically connected to the control system 6 by wires; the transmission mechanism 3 includes a motor 31, a pulley 32, a belt 33 and a rotating shaft 34. The housing of the motor 31 is fixedly connected to the support rod 1 by fasteners, and the rotating shaft 34 is rotatably connected to the fixed plate 2 through a bearing seat. There are two pulleys 32, which are respectively fixedly connected to the output shaft and the rotating shaft 34 of the motor 31. The belt 33 is hung between the two pulleys 32, and the safety door 4 is fixedly connected to the rotating shaft 34 by a connecting flange; the fixed plate 2 is also hinged with a rotating rod 7, and the rotating rod 7 includes two sets of sleeves with matching apertures and sequentially sleeved, one end of which is hinged to the fixed plate 2 by a pin, and the other end is hinged to the safety door 4; the support rod 1 is also fixedly installed with a dust cover 8 by fasteners, and the dust cover 8 covers the transmission mechanism 3.

[0033] The working principle of the special safety device for roll paper wrapping machine of the utility model is:

[0034] 1. The device includes a support rod 1, a fixed plate 2, a transmission mechanism 3, a safety door 4, a safety detection mechanism 5 and a control system 6. The fixed plate 2 is fixedly connected to the support rod 1 through a connecting piece 9. The connecting piece 9 is a steel plate, and its two ends are respectively welded to the support rod 1 and the fixed plate 2. The transmission mechanism 3 is arranged between the support rod 1 and the fixed plate 2. The safety door 4 is hinged to the fixed plate 2 through the transmission mechanism 3. The safety detection mechanism 5 and the support rod 1 are fixedly installed on the same ground plane through fasteners, and the transmission mechanism 3, the safety detection mechanism 5 and the film wrapping machine are all communicatively connected with the control system 6. The control system 6 is a PLC controller with a power supply module; the control system 6 supplies power to the safety detection mechanism 5, judges the opening and closing state of the safety door 4 by receiving a signal from the safety detection mechanism 5, and receives a rotation stop signal from the winding roller of the film wrapping machine, and controls the opening and closing of the safety door 4 according to the movement state of the winding roller, thereby realizing a safe closure during the operation of the film wrapping machine.

[0035] 2. The safety detection mechanism 5 includes a column 51, an upper limit rod 52, an upper limit switch 53, a lower limit rod 54 and a lower limit switch 55. The column 51 and the lower limit rod 54 are vertically arranged and fixedly connected to the ground plane by fasteners. The upper limit rod 52 is horizontally arranged and welded on the column 51. The upper limit switch 53 is fixedly connected to the upper limit rod 52 by fasteners. The lower limit switch 55 is fixedly connected to the lower limit rod 54 by fasteners. The housing of the PLC controller is fixedly mounted on the column 51 by fasteners, and the upper limit switch 53 and the lower limit switch 55 are electrically connected to the control system 6 through wires; the control system 6 first detects whether the safety door 4 is in the upper limit switch The switch 53 is at the position to ensure that the safety door 4 is in the open state. The web paper enters the winding machine roller through the conveyor chain for packaging. The roller rotates and transmits a signal to the control system 6. The control system 6 receives the signal and transmits an instruction to control the transmission mechanism 3 to drive the safety door 4 to move until the lower limit switch 55 detects the safety door 4 and completes the closing of the safety door 4. After the web paper is packaged, the winding machine roller stops rotating and outputs a signal to the control system 6. The control system 6 receives the signal and transmits an instruction to control the transmission mechanism 3 to reverse and drive the safety door 4 to open until the upper limit switch 53 can detect the safety door 4, then stops rotating, and ends the complete control process of the control system 6.

[0036] 3. The transmission mechanism 3 includes a motor 31, a pulley 32, a belt 33 and a rotating shaft 34. The housing of the motor 31 is fixedly connected to the support rod 1 by fasteners. The rotating shaft 34 is rotatably connected to the fixed plate 2 through a bearing seat. There are two pulleys 32, which are respectively fixedly connected to the output shaft of the motor 31 and the rotating shaft 34. The belt 33 is hung between the two pulleys 32. The safety door 4 is fixedly connected to the rotating shaft 34 through a connecting flange. The output end of the motor 31 is electrically connected to the control system 6 through a wire; the control system 6 outputs instructions to control the motor 31 to rotate forward, and the rotating shaft 34 drives the safety door 4 to move through the power transmission of the pulley 32 and the belt 33, thereby realizing the opening of the safety door 4; conversely, the output shaft of the motor 31 is reversed, and the safety door 4 is closed through the belt transmission.

[0037] 4. The fixed plate 2 is also hinged with a rotating rod 7, which includes two sets of sleeves with matching apertures and serially sleeved, one end of which is hinged to the fixed plate 2 through a pin, and the other end is hinged to the safety door 4; during the rotation of the safety door 4, the rotating rod 7 continuously changes the feed length and tilt angle of the two sets of sleeves to ensure the stable movement of the safety door 4.

[0038] 5. The support rod 1 is also fixed with a dust cover 8 by fasteners, and the dust cover 8 covers the transmission mechanism 3; the dust cover 8 isolates impurities in the working environment and realizes dust-proof protection for the transmission mechanism 3.

[0039] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope 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 protection scope of the present utility model.

Claims

1. A special safety device for a web wrapping machine, characterized in that: It includes a support rod, a fixed plate, a transmission mechanism, a safety door, a safety detection mechanism and a control system. The fixed plate is fixedly connected to the support rod through a connecting piece. The transmission mechanism is arranged between the support rod and the fixed plate. The safety door is hinged to the fixed plate through the transmission mechanism. The safety detection mechanism and the support rod are installed on the same ground plane. The transmission mechanism, the safety detection mechanism and the wrapping machine are all communicatively connected to the control system.

2. A special safety device for a web wrapping machine according to claim 1, characterized in that: The safety detection mechanism includes a column, an upper limit rod, an upper limit switch, a lower limit rod and a lower limit switch. The column and the lower limit rod are fixedly connected to the ground plane, the upper limit rod is fixedly connected to the column, the upper limit switch is fixedly connected to the upper limit rod, and the lower limit switch is fixedly connected to the lower limit rod; the upper limit switch and the lower limit switch are respectively connected to the control system for communication.

3. A special safety device for a web wrapping machine according to claim 2, characterized in that: The transmission mechanism includes a motor, a pulley, a belt and a rotating shaft. The motor is fixedly connected to the support rod, and the rotating shaft is rotatably connected to the fixed plate. There are multiple pulleys, which are respectively fixedly connected to the output shaft of the motor and the rotating shaft. The belt is hung on the pulleys; the safety door is mounted on the rotating shaft, and the motor is communicatively connected to the output end of the control system.

4. A special safety device for a web wrapping machine according to claim 3, characterized in that: The fixed plate is also hinged with a rotating rod, and the rotating rod includes a plurality of sets of matching sleeves, one end of which is hinged to the fixed plate, and the other end of which is hinged to the safety door.

5. A special safety device for a web wrapping machine according to claim 4, characterized in that: The support rod is also fixedly connected with a dust cover, and the dust cover covers the transmission mechanism.

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