Background
Some rubber sheet packaging films and dustproof packaging films use wide low-melting-point packaging films, the low-melting-point packaging films are coiled film rolls after film blowing production, and when the films of the film rolls need to be prepared into packaging bags, the films are cut according to the set length of the packaging bags by a cutting machine to form individual film bags.
Most of the existing cutting machines are provided with a swing arm, a lower reciprocating motion and a cutting knife, so that the cutting knife forms a cutting action between the slide rails on two sides along with the upper reciprocating motion and the lower reciprocating motion.
In order to solve the above problems, there is a cutting device on the market, in which a cutter is installed on a cutter spindle, the cutter spindle drives the cutter to rotate and cooperate with a cutter pillow to realize cutting, and the cutting device is provided with: 201820191190.3, discloses a cutting device for a bag making machine. The device comprises a cutting mechanism, wherein the cutting mechanism comprises a roller, a rotating shaft and at least one cutting knife; the rotating shaft is fixedly connected to the central position of the roller in a penetrating way; the cutting knife is fixedly arranged on the peripheral surface of the roller, the feeding mechanism transmits materials for the cutting mechanism to cut, and the preset cutting length of the materials is smaller than the circumference between the cutting knife and the cutting knife of the roller.
Above-mentioned this kind of cutting device is through pivot support cylinder and drive and cuts the sword and be rotary motion to cooperation feeding mechanism's pay-off is realized advancing to cut and is the film pocket, this kind of cutting device is when cutting, and the bag material glues with cutting the sword easily and twines together, influences normal work, produces more waste material, and production efficiency is low, and cuts sword life low, cuts the old blunt edge of a knife that cuts the sword under the long-time work, and the incision produces deckle edge easily, greatly reduced result of use then.
In addition, the width of the film pocket prepared by the conventional cutting device after cutting is below 1600mm, the cost of bag making equipment with large width exceeding 1600mm is high, the installation and maintenance costs of an upper cutter and a lower cutter are high, the utilization rate of the equipment is low, and the production is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved main technical problem of the utility model is to provide a simple structure, convenient to use can cut the film pocket that is the monolithic to the film reel, and cut length and can adjust at will, once only cut the fast big broad width low melting point packaging film cutting equipment of efficiency
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model provides a big width of cloth low melting point packaging film cutting equipment, includes main body frame, its characterized in that: the top of main body frame rotates and is provided with the center pin, fixedly on the center pin be provided with be used for supporting batch film and cut the film and be the batching of monolithic film pocket and cut the device, batch cut the device and carry out automated control by main control system, main control system is fixed to be set up on main body frame.
The following is the utility model discloses to above-mentioned technical scheme's further optimization:
the center pin is rotated by the drive assembly drive, and drive assembly is including fixed driving motor who sets up on main body frame, and driving motor's power take off end and center pin transmission are connected.
Further optimization: the coiling and slitting device comprises adjusting rotating rod groups which are fixedly arranged on the central shaft and are close to the positions of the two ends of the central shaft, a coiling rod group is arranged between the two adjusting rotating rod groups, and the two ends of the coiling rod group are respectively connected with the adjusting rotating rod groups.
Further optimization: the adjusting rotating rod group comprises four adjusting rotating rods, the four adjusting rotating rods are respectively arranged in a cross shape along the axis of the central shaft, and the adjusting rotating rods are vertically and fixedly connected with the central shaft.
Further optimization: the coiling rod group comprises a first coiling rod, a second coiling rod, a third coiling rod and a fourth coiling rod, and two ends of the first coiling rod, the second coiling rod, the third coiling rod and the fourth coiling rod are respectively connected with the corresponding adjusting rotating rods through adjusting components.
Further optimization: the first coiling rod, the second coiling rod, the third coiling rod and the fourth coiling rod are respectively provided with the same distance from the central shaft, and the first coiling rod, the second coiling rod, the third coiling rod and the fourth coiling rod form a rectangular frame.
Further optimization: the outer surface of the second coiling rod is provided with an adhesive layer, the outer surface of the first coiling rod is vertically and fixedly connected with a cutting knife, and the cutting knife is arranged along the axial direction of the first coiling rod.
Further optimization: the adjusting assembly comprises adjusting sleeves which are fixedly connected to two ends of the first coiling rod, the second coiling rod, the third coiling rod and the fourth coiling rod respectively, the adjusting sleeves are sleeved on the adjusting rotating rods respectively, the adjusting rotating rods are threaded rods, and clamping nuts used for clamping the adjusting sleeves are in threaded connection with the adjusting rotating rods.
Further optimization: the main control system comprises a main controller, wherein a signal output end of the main controller is electrically connected with a frequency converter, and a power output end of the frequency converter is connected with a power end of a driving motor.
Further optimization: the one end of second batch pole is adjusted and is fixed on the dwang and be provided with the counter, and the inboard of main body frame is fixed with the position department that corresponds with the counter and is detected the position, and the signal output part of counter and main control unit's signal input part electric connection.
The above technical scheme is adopted in the utility model, when using, the user at first adjusts the first length of batching pole, second batching pole, third batching pole, fourth batching pole and the center pin between according to the monolithic film pocket that waits to cut out as required interval.
When the distance needs to be adjusted, the adjusting sleeve can be vacated to slide along the axial direction of the adjusting rotating rod by rotating the two clamping nuts respectively to move in the back direction, and at the moment, the adjusting sleeve can drive the first coiling rod, the second coiling rod, the third coiling rod and the fourth coiling rod to move respectively along the axial direction of the adjusting rotating rod to adjust the distance between the first coiling rod, the second coiling rod, the third coiling rod and the fourth coiling rod and the central shaft.
After the distance adjustment is completed, the two clamping nuts are rotated to respectively push against the adjusting sleeve for clamping the adjusting sleeve when moving towards the opposite direction, so that the position of the adjusting sleeve on the adjusting rotating rod is limited, and further, the distances between the first coiling rod, the second coiling rod, the third coiling rod and the fourth coiling rod and the central shaft are limited.
When the film is required to be cut, firstly, a central shaft is set to rotate for a preset threshold value to be a circle, then the free end of a film winding drum to be cut is bonded on the second winding rod through an adhesive layer, then a driving motor is started, the driving motor outputs power to drive the central shaft to rotate clockwise, the central shaft rotates clockwise to drive the first winding rod through two groups of adjusting rotating rod groups, the second winding rod, the third winding rod and the fourth winding rod to rotate clockwise around the axis of the central shaft respectively, and the film of the film winding drum can be rewound on the first winding rod, the second winding rod, the third winding rod and the fourth winding rod at the moment.
The counter detects the number of turns of center pin rotation and sends this detected signal to main control unit in real time this moment, and main control unit is to this detection number of turns and center pin rotation number of turns preset threshold value and compare, and when the number of turns of center pin that the counter detected obtains equals the center pin and rotates the number of turns and preset the threshold value, main control unit control driving motor stops.
At the moment, the number of the rotation turns of the central shaft is a circle, and then the number of the rotation turns of the first coiling rod, the second coiling rod, the third coiling rod and the fourth coiling rod is also a circle.
Then pressure is applied to the outside of the rewound film and the position, close to the cutting knife on the second winding rod, of the rewound film, the film is cut into single film pockets by the cutting knife under the pressure, the number of the single film pockets is two, and therefore the single film pockets can be cut after the film is rewound once, and the cutting efficiency is high.
The above technical scheme is adopted in the utility model, think about ingeniously, rational in infrastructure, can cut the film pocket that is the monolithic to the film reel, and cut length and can adjust at will, cut the broad width and can realize more than 1600mm, and cut efficiently, the number of the film pocket of the monolithic that once only cuts equals the center pin and rotates the number of turns, cut the size error and can guarantee for a short time to cut the error within 20mm, and then the greatly reduced rejection rate, and cut the incision level and smooth pleasing to the eye, need not the secondary and revise, improve production efficiency greatly.
Moreover, the integral structure has high automation degree, can greatly reduce the labor intensity of workers and improve the economic benefit of enterprises, and has simple integral structure, low manufacturing cost and wide processing materials which are easy to purchase.
The present invention will be further explained with reference to the drawings and examples.
Detailed Description
Example (b): referring to fig. 1-5, a large-width low-melting-point packaging film cutting device comprises a main body frame 1, a central shaft 7 is rotatably arranged above the main body frame 1, a film bag winding and cutting device for supporting a wound film and cutting the film into single pieces is fixedly arranged on the central shaft 7, the film bag winding and cutting device is automatically controlled by a main control system, and the main control system is fixedly arranged on the main body frame 1.
The supporting seats 2 are respectively and fixedly arranged at two ends of the central shaft 7 above the main body frame 1, and two ends of the central shaft 7 are respectively and rotatably connected to the corresponding supporting seats 2.
The center pin 7 is driven by drive assembly to rotate, drive assembly is including fixed driving motor 3 that sets up on supporting seat 2, driving motor 3's power take off end and center pin 7 transmission are connected.
The driving motor 3 outputs power to enable the power output end to rotate and drive the central shaft 7 to rotate, and the central shaft 7 rotates to drive the coiling and slitting device to rotate.
The driving motor 3 can also be arranged on the main body frame 1, and the power output end of the driving motor 3 is in transmission connection with the central shaft 7 through a transmission assembly.
The transmission component is in the prior art and can be in gear transmission; chain wheel and chain transmission; pulleys, belt drives, etc.
And the rotation of the central shaft 7 by the driving motor 3 through a gear transmission or a sprocket, a chain transmission or a pulley, and a belt transmission is conventional in the prior art and will not be described herein.
The coiling and slitting device comprises adjusting rotating rod groups which are fixedly arranged on the central shaft 7 and are close to the two ends of the central shaft 7, a coiling rod group is arranged between the two adjusting rotating rod groups, and the two ends of the coiling rod group are respectively connected with the adjusting rotating rod groups.
The adjusting rotating rod group comprises four adjusting rotating rods 10, the four adjusting rotating rods 10 are respectively arranged in a cross shape along the axis of the central shaft 7, and the adjusting rotating rods 10 are vertically and fixedly connected with the central shaft 7.
The included angle between two adjacent regulating rotating rods 10 is 90 degrees.
The coiling rod group comprises a first coiling rod 5, a second coiling rod 6, a third coiling rod 8 and a fourth coiling rod 11, and two ends of the first coiling rod 5, the second coiling rod 6, the third coiling rod 8 and the fourth coiling rod 11 are respectively connected with corresponding adjusting rotating rods 10 through adjusting components.
The first winding rod 5, the second winding rod 6, the third winding rod 8 and the fourth winding rod 11 are respectively and equally spaced from the central shaft 7, and the first winding rod 5, the second winding rod 6, the third winding rod 8 and the fourth winding rod 11 enclose a rectangular frame.
The outer surface of the second coiling rod 6 is provided with an adhesive layer, the outer surface of the first coiling rod 5 is vertically and fixedly connected with a cutting knife 12, and the cutting knife 12 is arranged along the axial direction of the first coiling rod 5.
By the design, the central shaft 7 can be driven to rotate by the output power of the driving motor 3, the central shaft 7 rotates to drive the two groups of adjusting rotating rod groups to rotate, and the two groups of adjusting rotating rod groups rotate to drive the first coiling rod 5, the second coiling rod 6, the third coiling rod 8 and the fourth coiling rod 11 to rotate.
When the reel film needs to be cut, the free end of the reel film to be cut can be bonded on the second winding rod 6 through the adhesive layer, then the driving motor 3 outputs power to drive the central shaft 7 to rotate clockwise, the central shaft 7 rotates clockwise to drive the first winding rod 5 through the two groups of adjusting rotating rod groups, the second winding rod 6, the third winding rod 8, the fourth winding rod 11 rotates clockwise around the axis of the central shaft 7 respectively, and the film of the reel film can be rewound on the first winding rod 5, the second winding rod 6, the third winding rod 8 and the fourth winding rod 11 at the moment.
At this time, the number of the rotation turns of the driving motor 3 driving the central shaft 7 is set to be 50 turns, the central shaft 7 stops after rotating for 50 turns, at this time, the first winding rod 5, the second winding rod 6, the third winding rod 8 and the fourth winding rod 11 also rotate for 50 turns, then pressure is applied to the outside of the rewound film and the position close to the cutting knife 12 on the second winding rod 6, at this time, the film is cut into single film pockets by the cutting knife 12 under the pressure, at this time, the number of the single film pockets is 50, therefore, 50 single film pockets can be cut out after 50 turns at one time, and the cutting efficiency is high.
The overall length of the bag can be calculated according to the pythagorean theorem: referring to fig. 5, the overall length of the bag, L =4 v 2H (where H is the distance of each take-up lever from the central axis 7)
The adjusting component can drive the first coiling rod 5, the second coiling rod 6, the third coiling rod 8 and the fourth coiling rod 11 to move axially along the adjusting rotating rod 10 respectively, so that the distance between the first coiling rod 5, the second coiling rod 6, the third coiling rod 8, the fourth coiling rod 11 and the central shaft 7 can be adjusted.
The adjusting component comprises adjusting sleeves 4 which are respectively and fixedly connected to two ends of a first coiling rod 5, a second coiling rod 6, a third coiling rod 8 and a fourth coiling rod 11, and the adjusting sleeves 4 are respectively sleeved on an adjusting rotating rod 10.
The adjusting rotating rod 10 is a threaded rod, and two ends of the adjusting rotating rod 10, which are located on the adjusting sleeve 4, are respectively in threaded connection with a clamping nut 13 for clamping the adjusting sleeve 4.
Design like this, the accessible rotates two clamp nut 13 and moves respectively to the back direction and can vacate adjusting collar 4 and carry out gliding distance along the axial of adjusting dwang 10, adjusting collar 4 can drive first batching pole 5 this moment, the second batches pole 6, the third batches pole 8, the fourth batches pole 11 and moves first batching pole 5 of regulation along the axial of adjusting dwang 10 respectively, the second batches pole 6, the third batches pole 8, the fourth batches the distance between pole 11 and the center pin 7, and then realize adjusting the whole length who cuts the sack, make its film pocket that can cut out the monolithic of multiple breadth width, and the use effect is improved.
When the two clamping nuts 13 are rotated to move towards the opposite direction, the adjusting sleeve 4 can be abutted to clamp the adjusting sleeve 4, so that the position of the adjusting sleeve 4 on the adjusting rotating rod 10 is limited, and the distances between the first winding rod 5, the second winding rod 6, the third winding rod 8 and the fourth winding rod 11 and the central shaft 7 are limited.
Fixedly connected with stiffener respectively between two adjacent regulation dwang 10, the stiffener can improve the bulk strength of adjusting dwang 10, avoids adjusting dwang 10 atress and buckles, and then improves the holding power of adjusting dwang 10.
The main control system comprises a main controller 14, wherein a signal output end of the main controller 14 is electrically connected with a frequency converter 15, and a power output end of the frequency converter 15 is connected with a power end of the driving motor 3.
The main controller 14 sends a signal to control the frequency converter 15 to adjust the frequency of the working power supply input to the driving motor 3, so as to adjust the rotating speed of the driving motor 3.
The main controller 14 sends out signals, and the start and stop of the driving motor 3 can be controlled through the frequency converter 15.
The main controller 14 and the frequency converter 15 are each powered by a municipal power supply.
A counter 9 is fixedly arranged on an adjusting rotating rod 10 at one end of the second coiling rod 6, and a detection position is fixedly arranged at the position, corresponding to the counter 9, of the inner side of the main body frame 1.
When the driving motor 3 outputs power to drive the central shaft 7 to rotate and drive the adjusting rotating rods 10 of the two groups of adjusting rotating rod groups to rotate, the counter 9 is driven to rotate, counting can be carried out once when the counter 9 rotates through the detection position, and the technology is the number of turns of the central shaft 7.
The signal output end of the counter 9 is electrically connected with the signal input end of the main controller 14.
The main controller 14 is internally provided with a preset threshold value of the rotation number of the central shaft 7.
The counter 9 detects the number of turns of center pin 7 pivoted and sends this detected signal in real time to main control unit 14 in, main control unit 14 is compared this detection number of turns and center pin 7 number of turns preset threshold value, when the number of turns of center pin 7 that the counter 9 detected and obtained equals center pin 7 number of turns preset threshold value, main control unit 14 control driving motor 3 stops.
At this time, the number of the film turns rewound on the first winding rod 5, the second winding rod 6, the third winding rod 8 and the fourth winding rod 11 is equal to the preset threshold value of the number of the rotation turns of the central shaft 7, and further equal to the number of single film bags cut at one time.
The main controller 14 is a PLC main controller or a single chip microcomputer, which is available in the prior art and can be purchased directly from the market.
The technology that the main controller 14 sends a signal to regulate the frequency of the power output by the frequency converter 15 is also the prior art, and can be realized by simply programming the main controller 14, and the programming program is also the prior art.
The communication end of the master controller 14 is electrically connected to a touch screen, the touch screen is an existing device purchased in cooperation with the master controller 14, and the touch screen can adjust programs and parameters set in the master controller 14.
When in use, a user firstly adjusts the distance between the first winding rod 5, the second winding rod 6, the third winding rod 8, the fourth winding rod 11 and the central shaft 7 according to the length of the single film pocket to be cut.
When the distance needs to be adjusted, the adjusting sleeve 4 can be vacated to move towards the back direction respectively by rotating the two clamping nuts 13 and the distance sliding along the axial direction of the adjusting rotating rod 10 is carried out, at the moment, the adjusting sleeve 4 can drive the first coiling rod 5, the second coiling rod 6, the third coiling rod 8 and the fourth coiling rod 11 to move along the axial direction of the adjusting rotating rod 10 respectively so as to adjust the distance between the first coiling rod 5, the second coiling rod 6, the third coiling rod 8 and the fourth coiling rod 11 and the central shaft 7.
After the distance adjustment is completed, the two clamping nuts 13 are rotated to respectively abut against the adjusting sleeve 4 to clamp the adjusting sleeve 4 when moving towards the opposite direction, so that the position of the adjusting sleeve 4 on the adjusting rotating rod 10 is limited, and further, the distances between the first coiling rod 5, the second coiling rod 6, the third coiling rod 8 and the fourth coiling rod 11 and the central shaft 7 are limited.
When the film is required to be cut, firstly, the preset threshold value of the number of rotation turns of the central shaft 7 is set to be 50 turns, then the free end of a film winding drum to be cut is bonded on the second winding rod 6 through an adhesive layer, then the driving motor 3 is started, the driving motor 3 outputs power to drive the central shaft 7 to rotate clockwise, the central shaft 7 rotates clockwise to drive the first winding rod 5 through the two groups of adjusting rotating rod groups, the second winding rod 6, the third winding rod 8 and the fourth winding rod 11 to rotate clockwise around the axis of the central shaft 7 respectively, and the film of the film winding drum can be rewound on the first winding rod 5, the second winding rod 6, the third winding rod 8 and the fourth winding rod 11 at the moment.
At this moment, the counter 9 detects the number of turns of the rotation of the central shaft 7 and sends the detection signal to the main controller 14 in real time, the main controller 14 compares the number of turns of the detection with a preset threshold value of the number of turns of the rotation of the central shaft 7, and when the number of turns of the rotation of the central shaft 7 detected by the counter 9 is equal to the preset threshold value of the number of turns of the rotation of the central shaft 7, the main controller 14 controls the driving motor 3 to stop.
At this time, the number of rotations of the center shaft 7 is 50, and the number of rotations of the first winding lever 5, the second winding lever 6, the third winding lever 8, and the fourth winding lever 11 is also 50.
Then, pressure is applied to the outside of the rewound film and the position, close to the cutting knife 12 on the second winding rod 6, of the rewound film, the film is cut into single film bags by the cutting knife 12 under the pressure, the number of the single film bags is 50, 50 single film bags can be cut after 50 circles of rewinding are performed at one time, and the cutting efficiency is high.
In embodiment 2, the number of the adjusting rotating rods 10 in each group of the adjusting rotating rod group in embodiment 1 may also be multiple, the multiple adjusting rotating rods 10 are respectively radially arranged along the axis of the central shaft 7, and the adjusting rotating rods 10 are respectively and fixedly connected with the central shaft 7 in a perpendicular manner.
The number of the coiling rods in the coiling rod group is respectively the same as that of the adjusting rotating rods 10 in each group of adjusting rotating rod group, and two ends of each coiling rod are respectively connected with the corresponding adjusting rotating rods 10 through adjusting components.
An adhesive layer is distributed on one reeling rod in the reeling rod group, and when the reeling rod group rotates clockwise, a cutting knife 12 is fixedly arranged on one adjacent reeling rod which is reversely close to the reeling rod with the adhesive layer in the reeling rod group.
For those skilled in the art, based on the teachings of the present invention, changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.