Polytetrafluoroethylene strip stripping device and working method thereof

Abstract

The present invention relates to a polytetrafluoroethylene strip slitting device, comprising a frame, a differential roller group is arranged on the frame, a knife row for cutting the strip is arranged on one side of the differential roller group, at least two groups of winders are arranged on the other side, and a side strip winding roller is located below the winder. The polytetrafluoroethylene strip slitting device has a simple structure, can cut the polytetrafluoroethylene strip, and rewind the strips, the side strips are rewound by the side strip winding roller, is easy to use, and works stably and efficiently.

Description

Technical Field

[0001] The invention relates to a polytetrafluoroethylene strip stripping device and a working method thereof. Background Art

[0002] The polytetrafluoroethylene strip is a wide sheet. In order to cut the strip into strips, this case was created. Summary of the invention

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a polytetrafluoroethylene strip slitting device and a working method thereof, which are not only simple in structure but also convenient and efficient.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a polytetrafluoroethylene strip slitting device, including a frame, on which a differential roller group is provided, one side of the differential roller group is provided with a knife row for cutting the strip, and the other side is provided with at least two groups of winders, and a side strip winding roller located below the winder.

[0005] Preferably, the differential roller group is composed of a first differential roller and a second differential roller in sequence along the strip conveying direction, and the rotation speed of the second differential roller is greater than that of the first differential roller.

[0006] Preferably, the knife row comprises a knife holder mounted on a frame body, and the knife holder is provided with a plurality of cutting knives evenly distributed along the width direction of the strip between the first differential roller and the second differential roller.

[0007] Preferably, the winders include slitting winding rollers mounted on a frame, and a swing cantilever is provided above the slitting winding rollers. One end of the swing cantilever is hinged to the frame, and the other end is provided with a first pressure roller that is close to the outer wall of the slitting roll.

[0008] Preferably, the swing cantilevers of different slitting winding rollers are arranged in a staggered manner to avoid interference.

[0009] Preferably, a first winding roller, a second winding roller and a third winding roller are sequentially arranged between the differential roller group and the winder along the strip conveying direction.

[0010] Preferably, a fourth winding roller and a fifth winding roller are arranged in sequence from top to bottom between the edge strip winding roller and the differential roller group.

[0011] Preferably, a second pressing roller driven to rise and fall by a lifting cylinder is provided above the second differential roller.

[0012] Preferably, the input end of the differential roller group is provided with a feeding mechanism and a swing roller group in sequence along the conveying direction of the strip; the feeding mechanism includes a frame, and a loading and unloading rocker arm is hinged on the frame and driven by a driving mechanism to swing up and down, and a hook is provided on the top of the loading and unloading rocker arm for placing the barrel; the driving mechanism includes a first cylinder, the cylinder end of the first cylinder is hinged to the frame, the piston rod of the first cylinder is hinged to the non-end of the loading and unloading rocker arm, and the bottom of the loading and unloading rocker arm is hinged to the frame; the loading and unloading rocker arm is symmetrically located between the left and right vertical side walls of the frame, the two loading and unloading rockers are connected as a whole by a connecting rod, and the openings of the hooks are both facing upward; the tops of the left and right vertical side walls of the frame are provided with circular grooves coaxially placed with the end bearings of the upper swing barrel, and the circular grooves The notches are all facing the loading and unloading rocker arm, and the open side near the lower swing side is fixed with an upward extension part, and the side of the extension part is screwed with a pressure block for leaning against the outer periphery of the notch side of the end bearing; the barrel includes a barrel body, and the coaxial pins at both ends of the barrel body are provided with end bearings, and the loading and unloading rocker arms are located between the end bearing on the same side and the end face of the barrel on the same side, one of the pins is installed with a driven gear outside the frame, and a driving gear driven to rotate by a motor is installed on the frame, and the driven gear of the barrel on the loading and unloading rocker arm that is swung into place is meshed with the driving gear; the swing roller group includes a fixed roller installed on the frame body, the fixed roller is connected to a movable roller via a swing rod, the swing rod is hinged to the piston rod of the second cylinder, and the cylinder end of the second cylinder is hinged to the frame body.

[0013] A working method of a polytetrafluoroethylene strip slitting device, which is carried out according to the following steps: (1) the loading and unloading swing rod is driven by the telescopic movement of a first cylinder to swing up and down, and the barrel is placed in the working position when the loading and unloading swing rod is swung up, and the barrel is conveniently unloaded when it is swung down; when it swings up, the hook part swings up with the pin shaft, and the end bearing rolls into the circular groove, and at the same time, the pressure block leans against the end bearing, so that the driving gear drives the driven gear to drive the barrel to rotate; when it swings down, the hook part hooks up the pin shaft again, and the end bearing rolls out of the circular groove; through the above method, the stretched polytetrafluoroethylene strip is rolled into the barrel; (2) the polytetrafluoroethylene strip is fed into the swing roller group, and the swing roller group is driven by the second cylinder to swing the movable roller up and down to adjust the conveying tightness of the strip; (3) the polytetrafluoroethylene strip is further The strip is fed into the strip cutting and conveying mechanism, and is wound and conveyed by the first differential roller and the second differential roller. The strip is tightened under the action of the differential speed and cut into several strips by the knife row; the edge strip is wound and reeled downward in turn by the fourth winding roller, the fifth winding roller, and the edge strip winding roller, and one part of the strip is wound into a reel through the first winding roller, the second winding roller, and the third winding roller, and the other part is wound into another reel through the first winding roller, the second winding roller, and the third winding roller; when the reel is reeled, the first pressure roller always sticks to the outer peripheral wall of the strip roll to avoid wrinkles, and as the outer diameter of the strip roll increases, the swing cantilever gradually swings to adapt; when the reel is wound and the strip is to be temporarily broken, the second pressure roller goes down to press the strip of the second differential roller to prevent the front part of the strip from loosening and falling off.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the polytetrafluoroethylene strip slitting device has a simple structure, can cut polytetrafluoroethylene strips and reel them in strips, the edge strips are reeled in by edge strip reeling rollers, is easy to use, and works stably and efficiently.

[0015] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of an embodiment of the present invention.

[0017] Figure 2 It is the structural diagram of the feeding mechanism (upper swing).

[0018] Figure 3 It is the structural diagram of the feeding mechanism (lower hem).

[0019] Figure 4 for Figure 2 A partial enlarged view of .

[0020] Figure 5 for Figure 4 main view. DETAILED DESCRIPTION

[0021] In order to make the above features and advantages of the present invention more clearly understood, embodiments are given below with reference to the accompanying drawings for detailed description.

[0022] like Figure 1-5 As shown, a polytetrafluoroethylene strip slitting device includes a frame 1B, on which a differential roller group is provided, one side of the differential roller group is provided with a knife row for cutting the strip 2B into strips, the other side is provided with at least two groups of winders, and a side strip winding roller 3B located below the winder.

[0023] In the embodiment of the present invention, the differential roller group is composed of a first differential roller 4B and a second differential roller 5B in sequence along the strip conveying direction, and the rotation speed of the second differential roller is greater than that of the first differential roller.

[0024] In the embodiment of the present invention, the knife row includes a knife frame 6B installed on the frame body, and the knife frame is provided with a plurality of cutting knives 7B evenly distributed along the width direction of the strip between the first differential roller and the second differential roller.

[0025] In the embodiments of the present invention, the winders include a strip winding roller 8B installed on a frame, and a swing cantilever 9B is provided above the strip winding roller. One end of the swing cantilever is hinged to the frame, and the other end is provided with a first pressure roller 10B which is close to the outer wall of the strip roll.

[0026] In the embodiment of the present invention, the swing cantilevers of different slitting winding rollers are arranged in a staggered manner to avoid interference.

[0027] In the embodiment of the present invention, a first winding roller 11B, a second winding roller 12B, and a third winding roller 13B are sequentially provided between the differential speed roller group and the winder along the strip conveying direction.

[0028] In the embodiment of the present invention, a fourth winding roller 14B and a fifth winding roller 15B are sequentially arranged between the edge strip winding roller and the differential speed roller group from top to bottom.

[0029] In the embodiment of the present invention, a second pressing roller 17B driven to rise and fall by a lifting cylinder 16B is provided above the second differential roller.

[0030] In an embodiment of the present invention, a feeding mechanism and a rocking roller group are sequentially arranged at the input end of the differential roller group along the conveying direction of the strip; the feeding mechanism comprises a frame 1A, on which a loading and unloading rocker arm 2A driven by a driving mechanism to swing up and down is hinged, and a hook portion 4A for placing a barrel 3A is arranged on the top of the loading and unloading rocker arm; the driving mechanism comprises a first cylinder 5A, the cylinder body end of the first cylinder is hinged to the frame, the piston rod of the first cylinder is hinged to the non-end portion of the loading and unloading rocker arm, and the bottom of the loading and unloading rocker arm is hinged to the frame; the loading and unloading rocker arm is symmetrically located between the left and right vertical side walls of the frame, the two loading and unloading rockers are connected as a whole by a connecting rod 6A, and the openings of the hooks are both facing upward; the tops of the left and right vertical side walls 7A of the frame are provided with circular grooves 9A coaxially placed with the end bearings 8A of the upper swing barrel, and the notches of the circular grooves are both facing The loading and unloading swing arm has an upward extension 10A fixedly provided on the open side near the lower swing side, and the side of the extension is screwed with a pressure block 11A for leaning against the outer periphery of the notch side of the end bearing; the barrel includes a barrel 12A, and the coaxial pins 13A at both ends of the barrel are provided with end bearings, and the loading and unloading swing arms are located between the end bearing on the same side and the end face of the barrel on the same side, one of the pins is equipped with a driven gear 14A outside the frame, and a driving gear 16A driven to rotate by a motor 15A is installed on the frame, and the driven gear of the barrel on the loading and unloading swing arm that is swung into place is meshed with the driving gear; the swing roller group includes a fixed roller 17A installed on the frame, and the fixed roller is connected to a movable roller 19A via a swing rod 18A, the swing rod is hinged to the piston rod of the second cylinder, and the cylinder end of the second cylinder 20A is hinged to the frame.

[0031] A working method of a polytetrafluoroethylene strip slitting device, which is carried out according to the following steps: (1) the loading and unloading swing rod is driven by the telescopic movement of a first cylinder to swing up and down, and the barrel is placed in the working position when the loading and unloading swing rod is swung up, and the barrel is conveniently unloaded when the loading and unloading swing rod is swung down; when the loading and unloading swing rod is swung up, the hook part swings up with the pin shaft, and the end bearing rolls into the circular groove, and at the same time, the pressure block leans against the end bearing, so that the driving gear drives the driven gear to drive the barrel to rotate; when the loading and unloading swing rod is swung down, the hook part hooks up the pin shaft again, and the end bearing rolls out of the circular groove; through the above method, the stretched polytetrafluoroethylene strip is rolled into the barrel; (2) the polytetrafluoroethylene strip is fed into the swing roller group, and the swing roller group is driven by the second cylinder to swing the movable roller up and down to adjust the conveying tightness of the strip; (3) the polytetrafluoroethylene strip is further It is sent into the strip cutting and conveying mechanism, and is wound and conveyed by the first differential roller and the second differential roller. Under the action of the differential speed, the strip is tightened and cut into several strips by the knife row; the edge strip is wound and reeled downward in turn by the fourth winding roller, the fifth winding roller, and the edge strip winding roller, and one part of the strip passes through the first winding roller, the second winding roller, and the third winding roller to enter a reel for reeling, and the other part passes through the first winding roller, the second winding roller, and the third winding roller to enter another reel for reeling; when the reel is reeling, the first pressure roller always sticks to the outer peripheral wall of the strip roll 18B to avoid wrinkles, and as the outer diameter of the strip roll increases, the swing cantilever gradually swings to adapt; when the reeling is completed and the strip is to be temporarily broken, the second pressure roller goes down to press the strip of the second differential roller to avoid the front part of the strip from loosening and falling off.

[0032] The present invention is not limited to the above-mentioned best embodiment. Anyone can derive other various forms of polytetrafluoroethylene strip stripping devices and working methods under the enlightenment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

Claims

1. A polytetrafluoroethylene strip slitting device, characterized in that: The invention comprises a frame, on which a differential roller group is arranged, a knife row for cutting the strip is arranged on one side of the differential roller group, at least two groups of winders are arranged on the other side, and a strip winding roller located below the winders; the differential roller group is composed of a first differential roller and a second differential roller in sequence along the conveying direction of the strip, and the rotation speed of the second differential roller is greater than that of the first differential roller; the knife row comprises a knife holder mounted on the frame, and a plurality of cutting knives are arranged between the first differential roller and the second differential roller along the width direction of the strip; the winders all comprise strip winding rollers mounted on the frame, and a swing cantilever is arranged above the strip winding rollers, and the swing cantilever One end is hinged to the frame, and the other end is provided with a first pressure roller that is close to the outer peripheral wall of the slitting roll; the swing cantilevers of different slitting winding rollers are staggered to avoid interference; the first winding roller, the second winding roller, and the third winding roller are arranged in sequence between the differential roller group and the winder along the strip conveying direction; the fourth winding roller and the fifth winding roller are arranged in sequence from top to bottom between the edge strip winding roller and the differential roller group; a second pressure roller driven to rise and fall by a lifting cylinder is arranged above the second differential roller; a feeding mechanism and a swing roller group are arranged in sequence at the input end of the differential roller group along the strip conveying direction; the feeding mechanism includes a frame, and a A loading and unloading swing rod that swings up and down, the top of which is provided with a hook for placing a barrel; the driving mechanism comprises a first cylinder, the cylinder body end of the first cylinder is hinged to the frame, the piston rod of the first cylinder is hinged to the non-end of the loading and unloading swing rod, and the bottom of the loading and unloading swing rod is hinged to the frame; the loading and unloading swing rod is symmetrically located between the left and right vertical side walls of the frame, the two loading and unloading swing rods are connected as a whole through a connecting rod, and the openings of the hooks are both facing upwards; the tops of the left and right vertical side walls of the frame are both provided with circular grooves for coaxially placing the end bearings of the upper swing barrel, the notches of the circular grooves are all facing the loading and unloading swing rod, and the openings are fixed with upward extensions near the lower swing side, The side surfaces of the extension parts are all screwed with pressure blocks for leaning against the outer periphery of the notch side of the end bearing; the barrel includes a barrel body, and the coaxial pins at both ends of the barrel body are provided with end bearings, and the loading and unloading rocker arms are located between the end bearings on the same side and the end surface of the barrel body on the same side, one of the pins is provided with a driven gear outside the frame, and a driving gear driven to rotate by a motor is installed on the frame, and the driven gear of the barrel on the loading and unloading rocker arm that is swung into place is meshed with the driving gear; the swing roller group includes a fixed roller installed on the frame body, the fixed roller is connected to a movable roller via a swing rod, the swing rod is hinged to the piston rod of the second cylinder, and the cylinder body end of the second cylinder is hinged to the frame body.

2. A method for operating the polytetrafluoroethylene strip slitting device according to claim 1, characterized in that: The process is as follows: (1) The loading and unloading swing arm is driven by the telescopic movement of the first cylinder to swing up and down. When the loading and unloading swing arm swings up, the barrel is in the working position, and when it swings down, it is convenient to unload the barrel; when it swings up, the hook swings up with the pin shaft, and the end bearing rolls into the circular groove. At the same time, the pressure block leans against the end bearing, so that the driving gear drives the driven gear to drive the barrel to rotate; when it swings down, the hook hooks up the pin shaft again, and the end bearing rolls out of the circular groove; through the above method, the stretched polytetrafluoroethylene strip is rolled into the barrel; (2) The polytetrafluoroethylene strip is fed into the swing roller group, and the swing roller group is driven by the second cylinder to swing the movable roller up and down to adjust the conveying tightness of the strip; (3) The polytetrafluoroethylene strip is further fed into the strip cutting conveyor The mechanism is wound and conveyed by the first differential roller and the second differential roller. The strip is tightened under the action of the differential speed and cut into several strips by the knife row; the edge strip is wound and wound downwards through the fourth winding roller, the fifth winding roller and the edge strip winding roller in turn, a part of the strip passes through the first winding roller, the second winding roller and the third winding roller to enter a winder for winding, and the other part passes through the first winding roller, the second winding roller and the third winding roller to enter another winder for winding; when the winder is winding, the first pressure roller always sticks to the outer peripheral wall of the strip roll to avoid wrinkles, and as the outer diameter of the strip roll increases, the swing cantilever gradually swings to adapt; when the winding is completed and the strip is to be temporarily broken, the second pressure roller goes down to press the strip of the second differential roller to prevent the front part of the strip from loosening and falling off.

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