CN115258776A - Edge suction mechanism for tension traction - Google Patents

Abstract

The invention relates to the field of slitting and rewinding equipment, and discloses a tension traction edge suction mechanism, which comprises: the pressure-adjustable driven roller mechanism comprises a frame, a power output system, a driving roller, a pressure-adjustable driven roller mechanism and an air suction pipe, wherein the output end of the power output system is connected with the driving roller and drives the driving roller to roll, the driving roller is connected with the lower end of the frame in a shaft mode and can roll freely, a pressure-adjustable friction contact is formed between a driven roller and the driving roller of the pressure-adjustable driven roller mechanism and is driven to roll, an air suction opening is formed in the lower end of the air suction pipe and is located above a clamping and conveying opening formed between the driving roller and the driven roller, and an air outlet is formed in the upper end of the air suction pipe. Tension is generated through the pinch traction roller, the edge suction edge is cut off, shaking interference formed by pulling the edge materials is avoided, the slitting quality of metal foils and plastic films is improved, quality problems such as burrs, waves and small cracks in slitting are reduced, and accordingly the slitting quality of the slitting rewinding device to coiled materials is improved, and the rate of finished products is increased.

Description

Edge suction mechanism for tension traction

Technical Field

The invention relates to the technical field of slitting rewinding equipment, in particular to a tension traction edge suction mechanism applied to sheet slitting rewinding equipment such as metal foils and plastic films, which is used for improving the slitting quality of coiled materials and increasing the yield of products.

Background

At present, slitting and rewinding equipment for materials such as metal foils (such as aluminum foils, copper foils, steel foils and the like) and plastic films mainly comprises an unwinding mechanism, a machine body and a guide roller group thereof, a slitting and edge sucking mechanism, a main transmission mechanism, a winding shaft mechanism and a driving motor. The slitting rewinding device needs to place a metal foil or a plastic film on an unwinding mechanism as a mother roll and send the metal foil or the plastic film to a guide roller group in a single unwinding mode for guiding and conveying, in the guiding process, a slitting process of a machine body can slit conveyed materials into strips (namely positive materials) with various specifications and widths through a slitting mechanism, meanwhile, in the slitting process, slit rim charge is sucked by an air suction nozzle of the slitting mechanism, and the slit materials are clamped and conveyed to corresponding winding shafts through a main transmission mechanism to be wound. It is known that the chinese utility model patent specification (publication No. CN 205114661U) discloses a double winding shaft vertical slitting rewinder, and the working process is the same. In addition, the existing cutting modes mainly comprise disc cutter up-and-down cutting, circular cutter cutting, single cutter cutting and the like. No matter which cutting method is adopted, all materials are cut, in order to ensure the width specification of the strip, edge materials or middle drawn strips are generated, and the edge materials and the middle drawn strips need to be sucked away by negative pressure through a suction nozzle and then are conveyed to a waste material room. In addition, during the slitting process of the slitting mechanism, the wide material can be slit into different width specifications, the unwinding mechanism has a tension applied on the foil (thin) material to stretch the flat foil (thin) material so that the flat foil (thin) material can pass through the slitting mechanism more stably and can be slit into different width strips, then the tension between unwinding and winding is cut off by the clamping mechanism and is transmitted to the winding shaft for rewinding, the winding shaft outputs different moments according to the different width strips, so that the strips can be normally wound, and the rim charge part (the width is generally 4-200 mm) is sucked by the rim suction nozzle. However, after the edge material part is cut by a cutter, the stress between the edge material (drawn strips) and the strip material (positive material) is not equal, when the foil (thin) material is cut, the material at the cutting point needs to be stable in speed, the tension is balanced, the quality of the edge part can be ensured, and burrs, waves and small cracks are reduced. However, in the edge suction process of the air suction nozzle, the edge material and the strip material are severely influenced by the dragging and shaking of the wind force, and the edge quality defects still can be formed, such as: the generation of burrs, the generation of waves caused by the unequal stress and tension of two sides, and the generation of small cracks when the rim charge shakes under the action of wind power.

In view of the above, the invention is designed by related experience of many years, and the invention is made through a plurality of tests and improvements based on the consideration of ensuring the slitting quality of each detail.

Disclosure of Invention

The invention aims to solve the quality problems of burrs, waves, small cracks and the like which still occur in the process of rim charge suction after slitting materials such as metal foils, plastic films and the like in the production process of the slitting and rewinding equipment, and provides a tension traction edge suction mechanism for improving the slitting quality and the yield.

In order to achieve the above object, the method comprises the following steps: frame, power take-off system, drive roll, pressure-adjustable driven roll mechanism and aspiration channel, the drive roll is connected to power take-off system's output to order about it and roll, the drive roll carries out the hub connection with the lower extreme of frame, makes it can freely roll, form the frictional contact that can adjust pressure between the driven voller of pressure-adjustable driven roll mechanism and the drive roll, make it driven roll, the lower extreme of aspiration channel has an aspiration inlet, and this aspiration inlet is located the pinch mouth top that forms between drive roll and the driven voller, there is an air outlet upper end of aspiration channel.

In the technical scheme, the slitting mechanism is driven by a power output system, a driving roller is matched with a pressure-adjustable driven roller mechanism to form a driving pinch roller and a driven pinch roller, the generated edge material part is pinched to an air suction opening of an air suction pipe through a pinch opening of the driving pinch roller, and an air outlet of the air suction pipe can be communicated with a main pipeline of a high-power fan, so that the induced edge material part is sucked away and sent to a waste material room leading to the main pipeline under the negative pressure after the high-power fan is started by the air suction pipe. In the process, the double-roller tension pinch traction mode is used for preventing the shaking interference caused by the fact that the edge suction wind force is used for dragging the edge material part, the slitting quality is improved, and the product yield is increased.

Furthermore, the rack is connected with a linear guide rail mechanism to form a movable rack. In the preferred technical scheme, the rack is changed into a movable part by utilizing the linear guide rail mechanism, so that the aim of adjusting the position of the movable rack is fulfilled, the driving roller of the movable rack is accurately moved above the corresponding splitting mechanism, and the convenience and the flexibility of the use of the rack are enhanced.

Further, the linear guide mechanism includes: the guide rail, at least a slider, the slider overlaps on the guide rail and makes reciprocating motion on it, and simultaneously, the slider connects the one end of frame or sets up as a partial setting of frame whole. In the preferred technical scheme, the plurality of sliding blocks can be arranged on the same guide rail, namely, a plurality of racks share the same guide rail and conduct linear guide on the guide rail, and when the automatic feeding mechanism is used, corresponding driving rollers can be distributed in a moving mode according to the number and position conditions of the slitting mechanisms, and the driving rollers with faults can be moved and replaced, so that the production efficiency and the installation efficiency are improved.

Furthermore, the guide rail is a circular guide rail, and the sliding block is provided with a circular sliding hole matched with the circular guide rail, so that the sliding block can perform reciprocating sliding and can also perform front and back swinging. In the preferred technical scheme, the gap of a friction pinch port between the driving roller and the driven roller of the machine frame can be adjusted through the swinging of the machine frame, and before the tension traction edge suction mechanism operates, the edge material parts with different thicknesses are smoothly guided to pass through the pinch port between the driving roller and the driven roller in advance for pinch.

Further, the adjustable pressure roller mechanism includes: driven voller, swing arm and pressure regulating part, the one end of swing arm is located to the driven voller, makes it ability free roll, swing joint is carried out with a fixed point or guide rail to the other end of swing arm, makes it to make it to swing, on the arm body of swing arm is located to the pressure regulating part, can adjust the driven voller and press the pressure to the drive roll. In the preferred technical scheme, the pressure of the edge material pinch between the driven roller and the driving roller is adjusted through the pressure adjusting part, and the corresponding clamping force is adjusted according to the traction force required by the thickness and the width of different thin materials.

Furthermore, the pressure regulating member may be any one of a pressure spring, a weight, and a gas pressure lever. In the preferred technical scheme, the manual adjustment of the clamping force between the driving roller and the driven roller can be realized so as to adapt to thin materials with different thicknesses and widths, wherein the swing arm can be balanced by the weight in a manual increase and decrease mode, the weight of the driven roller is adjusted in advance so as to realize the purpose of pressure adjustment, and the pressure of the driven roller pressed to the driving roller is adjusted by the elastic compression component and the air pressure rod in a manner of increasing and decreasing the pressure in advance.

Furthermore, the driving roller and the driven roller are respectively a steel roller and a rubber roller, or both the steel roller and the rubber roller. In the preferred technical scheme, the main roller and the driven roller are matched by steel, rubber rollers or double rubber rollers, so that the abrasion degree of the main roller and the driven roller can be reduced, the friction force during rolling is increased, the rolling is smoother, and the double rollers have better adaptability.

Furthermore, the body of the air suction pipe is provided with a section of telescopic bending pipe. In the preferred technical scheme, the telescopic bending pipe can enable the air suction pipe to perform telescopic and bending activities, so that the distance and the position between the air suction opening of the air suction pipe and the main roller and the auxiliary roller are adjusted, the air suction pipe sucks the edge material part which is guided through clamping and conveying in a more proper position, and the use is more flexible and convenient.

Furthermore, two ends of the driving roller are respectively connected with a shaft of the frame to enable the driving roller to freely roll, one end of the driving roller is fixedly connected with a flange, a first driving roller is arranged beside the flange, a friction clutch plate is arranged on the side surface of the first driving roller facing the flange, a pressure spring and a fastener for locking the pressure spring are arranged on the other side surface of the first driving roller, a driving belt is sleeved on the circumferential surface of the first driving roller, the other end of the driving belt is sleeved on a second driving roller, the second driving roller is connected with the output end of a power output system, and the power output system is a driving roller driving motor of the slitting rewinder. In the preferred technical scheme, the rolling of the driving roller and the slitting rewinder share the same driving motor, the driving roller does not need to be additionally provided with the driving motor, the pressure spring can adjust the friction force between the first driving roller and the flange plate through pressure, and the driving roller is driven to roll through tension force through friction.

Compared with the prior art, the invention mainly aims to generate tension through the pinch traction roller, prevent the edge suction edge from shaking interference caused by edge material pulling, improve the slitting quality of metal foils and plastic films, and reduce the quality problems of burrs, waves, small cracks and the like of slitting and trimming in the slitting process, thereby improving the slitting quality of the slitting and rewinding equipment on coiled materials and increasing the yield of products.

Drawings

FIG. 1 is a side view of the present invention.

Fig. 2 is a front structural view of the present invention.

Figure 3 is a view showing the construction of the drive roll and power take-off system connection of the present invention.

Fig. 4 is a schematic diagram of the working process of the present invention.

Detailed Description

The invention mainly comprises a frame 1, a linear guide rail mechanism, a power output system 2, a driving roller 3, a pressure-adjustable driven roller mechanism, an air suction pipe 5 and the like. For the purpose of facilitating an understanding and enabling the invention, preferred embodiments thereof are described in further detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the frame 1 is formed by casting, and is composed of two parallel iron blocks, the two iron blocks are strip-shaped, the lower ends of the two iron blocks are provided with symmetrical shaft holes 1a, the upper ends of the two iron blocks are provided with sliding blocks 1b integrated with the shaft holes, and hollow circular sliding holes are formed inside the sliding blocks. In addition, the iron block mentioned here may be replaced with another metal block having a hardness close to that of the iron block, or a plastic block having a high hardness.

The frame 1 is also matched and connected with a linear guide rail mechanism, so that the frame becomes a movable frame. The linear guide rail mechanism can be realized by any one of a roller linear guide rail, a cylindrical linear guide rail and a ball linear guide rail with known structures, and is used for supporting and guiding a moving part to do reciprocating linear motion in a given direction. Depending on the nature of the massage device, the linear guide rails can be further classified into sliding friction guide rails, rolling friction guide rails, elastic friction guide rails, fluid friction guide rails, and the like.

In an embodiment, the linear guide rail mechanism comprises a guide rail 6 and a slider (i.e. a moving part), the guide rail is a circular guide rail and is fixedly arranged on the slitting rewinder, the slider at the position adopts a form of a slider 1b integrated with the upper end of the rack, the slider is sleeved on the circular guide rail 6 through a circular sliding hole of the slider and slides in a left-right reciprocating manner on the circular guide rail, and then the rack 1 is driven to slide integrally together.

In another embodiment, the guide rail and the slide block of the linear guide rail mechanism are a pair of assemblies, and the slide block and the frame are two independent parts, namely the upper end of the frame is provided with a slide block-free structure, the slide block and the frame are connected together through a fastening piece and then are matched with the guide rail to do left-right reciprocating motion, the fastening piece is mainly a screw component, and the frame of the structure can move left and right and can swing front and back or not, and the linear guide rail mechanism is implemented according to a limited structure between the guide rail and the slide block of the linear guide rail mechanism with the prior known structure.

The guide rail 6 can also be used as a guide part of a plurality of sliding blocks 1b, namely a plurality of movable racks share the same guide rail for guide movement, thereby better achieving the purposes of rack allocation and temporary replacement of a fault rack.

The power output system 2 is fixed on one side of the frame 1 through a screw component, any one of a servo motor, a direct current motor, a variable frequency motor, a synchronous motor and a torque motor which can realize output torque traction is adopted, an output end 2a of the power output system is connected with the driving roll 3 in a direct or indirect mode, so that the driving roll is driven to roll at uniform speed, wherein indirect output refers to indirect transmission through a transmission mechanism, for example: the utility model discloses a circular knife cutting mechanism for cutting machine that china utility model specification (CN 205148414U) disclosed, the buncher of record has adopted by initiative synchronizing wheel, driven synchronizing wheel and hold-in range as the driven implementation mode of drive disk assembly, in addition, can also adopt drive disk assembly such as drive teeth, belt of other known structures to realize.

The driving roller 3 is a main power component of the tension traction edge suction mechanism, is made of a steel roller, and can be replaced by a rubber roller. The driving roller is arranged between the lower ends of the two iron blocks of the frame and is in shaft connection with the shaft hole 1a, so that the driving roller can freely roll on the frame, and the power output system drives the driving roller to roll at a uniform speed.

Above-mentioned adjustable pressure roller mechanism includes: driven roller 4, two swing arms 5 and pressure regulating member 7. The driven roller is a rubber roller and is arranged beside the driving roller 3 and in frictional contact with the driving roller, and the frictional contact point is a pinch port 34 of the rim charge part; two sides of the driven roller are supported by one end of two swing arms 5 and are connected with each other through a shaft, so that the driven roller rolls freely, and the other ends of the two swing arms are respectively sleeved on two sides of the guide rail 6 at the same time and swing back and forth in a limited range by taking the guide rail as an axis. The driven roller 4 here may be a friction contact roller common to the plurality of driving rollers 3, and the two swing arms 5 may be connected to each other in a swing manner with the body of the slitter-winder as a fixed point. The pressure regulating part 7 adopts a spring as a pressure elastic part and is arranged on the arm bodies of the two swing arms 5, one end of the spring is connected with a fixed point, the other end of the spring is fixed on the swing arms, the force application direction of the spring is to push the driven roller 4 of the swing arms to apply certain pressure to the driving roller 3, when the pressure is regulated, the contact pressure between the driven roller and the driving roller is set by regulating the tightness degree of the spring, after the regulation is finished, the pressure applied by the driven roller is in a relatively fixed state, and if the pressure needs to be reconfigured, the pressure is realized by readjusting the compression degree of the spring.

In one embodiment, the spring may also be provided at the central intersection point of the two swing arms after they are connected to each other, and the spring may be replaced by a tension spring as the pressurizing elastic member, or implemented using a pneumatic rod. In another embodiment, can also install the weight additional on two swing arms through the counter weight mode to adjust the gravity that the swing arm pressed to the drive roll, its install the mode additional for through drilling on the swing arm, and cooperate screw assembly to fix the weight, according to pressure size requirement, the manual pressure regulation that increases and decreases the weight and realize the driven voller.

The suction pipe 8 is a component for sucking the rim charge between the driving roller and the driven roller, the upper end pipe body of the suction pipe is a corrugated pipe section 8b which can be stretched and bent, the corrugated pipe section is provided with an air outlet 8c which is communicated with a main pipe 9 of a high-power fan, the lower end pipe body of the suction pipe can be fixed on the frame 1, and the bottom of the suction pipe is provided with an air suction opening 8a which faces and is close to the pinch opening between the driving roller and the driven roller. When the air suction pipe is used, the corrugated pipe section can be stretched and bent to adjust the position and distance between the air suction opening and the clamping and conveying opening. In addition, the corrugated pipe section 8b can be arranged in the middle of the air suction pipe, and the pipe bodies at the upper end and the lower end of the air suction pipe can also be respectively a steel pipe and a corrugated rubber pipe combination, or a full rubber pipe/metal pipe with a corrugated section.

Referring to fig. 3, in another embodiment, the power output system is a driving motor of a driving roll of the slitter-winder, in specific implementation, two ends of the driving roll 3 are respectively connected with a shaft of the frame 1 so as to enable the driving roll to freely roll, a left end shaft body of the driving roll 3 is a driving end, a flange 18 is fixedly connected to the left end shaft body, and a first driving roll 20 is arranged beside the flange; the side surface of the first driving roller facing the flange plate is provided with a friction clutch plate 19, the other side surface of the first driving roller is provided with a pressure spring 22 and a fastening piece 21 for locking the pressure spring, the fastening piece is a nut, and the pressure of the pressure spring can be adjusted through the nut, so that mechanical friction is generated between the first driving roller 20 and the flange plate 19, and tension is generated; the periphery of the first driving roller 20 is sleeved with a driving belt 23, the driving belt is a belt, the other end of the driving belt is sleeved on a second driving roller 24, the second driving roller is connected with the output end of the power output system, namely, a driving roller driving motor of the slitting rewinder, so that the driving roller and the slitting rewinder share one set of driving motor, and in addition, the first driving roller and the second driving roller are friction rollers.

In order to further understand the way in which the above-mentioned components/assemblies work with the slitter-winder, the working principle is further described below, as shown in fig. 4: in general, in a slitter-winder, a primary roll 12 of a metal foil or a plastic film is disposed on an unwinding mechanism 11, the primary roll is fed to a slitting mechanism 14 through a guide roll group 13 in a single sheet form by the unwinding mechanism, a certain tension is applied to the single sheet of foil (thin) material to form an unfolded surface, a plurality of slitting mechanisms 14 are disposed at the position according to slitting specifications of a coiled material, each slitting mechanism slits the material into finished materials of various specifications and widths by a cutter thereof, and the finished materials are pinch-fed to a corresponding winding shaft mechanism 17 by a transmission mechanism 16 to be wound. In order to ensure the trimming quality of materials, a plurality of parts are reserved on the width of a mother roll, the mother roll is cut away when the slitting is carried out, the cut-away parts are rim materials, at the moment, a tension traction edge suction mechanism is additionally arranged in the process of the slitting mechanism, each slitting mechanism corresponds to one group of main rollers and one group of driven rollers, the main rollers and the driven rollers form a pinch traction roller, the slit rim material parts are pinched and drawn to an air suction port of an air suction pipe and sucked and conveyed to a waste material room communicated with a main air pipe, in the process, in order to ensure the trimming quality, the linear speed of the traction pinch roller can be adjusted to be about 10% faster than that of a slitting rewinder, and the output of torque with the corresponding rim material width is realized, so that the combined mode of the amplitude limiting speed of a power output system (the rotating speed of a servo motor is generally 2000 revolutions per minute) and the output of torque is formed, the drawing speed of the rim materials or the middle suction rim materials is stable, the surface stress of foils (thin) is equal, and the cracks are cut off by the traction force of the rim materials, so that the interference of the rim material pulling force on the rim material, the quality of a slit foil is reduced, the quality of a plastic film is reduced, and the quality of a slit is reduced in the slitting process of a plastic film and the like.

Claims (9)

1. A tension-traction edge suction mechanism is characterized by comprising: frame (1), power take off system (2), drive roll (3), pressure-adjustable driven roll mechanism and aspiration channel (8), the drive roll is connected to power take off system's output to it rolls to order about it, the drive roll carries out the hub connection with the lower extreme of frame, makes it can freely roll, form the frictional contact that can adjust pressure between the driven voller of pressure-adjustable driven roll mechanism and the drive roll, make it driven roll, the lower extreme of aspiration channel has an aspiration inlet (8 a), and this aspiration inlet is located the pinch mouth top that forms between drive roll and the driven voller, there is an air outlet (8 c) upper end of aspiration channel.

2. A tension-pulling selvedge suction mechanism according to claim 1, characterized in that the frame (1) is connected to a linear guide mechanism, which forms a moving frame.

3. The edge suction tension mechanism according to claim 2, wherein the linear guide mechanism comprises: the guide rail (6), at least one slider (1 b), the slider overlaps on the guide rail and makes reciprocating motion on it, and simultaneously, the slider connects the one end of frame (1) or sets up as the frame is whole partly.

4. A tension-pulling edge suction mechanism according to claim 3, wherein the guide rail (6) is a circular guide rail, and the slider (1 b) is provided with a circular slide hole matching with the circular guide rail, so that the slider can also swing back and forth in addition to reciprocating sliding.

5. A tension-pulling selvedge suction mechanism according to claim 1 or 2, wherein the adjustable pressure roller mechanism comprises: driven voller (4), swing arm (5) and pressure regulating part (7), the one end of swing arm is located to the driven voller, makes it can the free roll, swing joint is carried out with a fixed point or guide rail (6) to the other end of swing arm, makes it to make it can do the swing, on the arm body of swing arm was located to the pressure regulating part, the pressure that the driven voller pressed to the drive roll can be adjusted.

6. A tension traction edging arrangement as claimed in claim 5, characterized in that the pressure regulating member (7) is any one of a pressure spring, a weight, a pneumatic rod.

7. A tension traction edge suction mechanism as claimed in claim 1 or 5, wherein the driving roller (3) and the driven roller (4) are respectively a steel roller and a rubber roller, or both.

8. A tension-traction edge suction mechanism according to claim 1, wherein the body of the suction duct (8) is provided with a length of telescopic bent tube.

9. The tension traction edge suction mechanism as claimed in claim 1, wherein two ends of the drive roll (3) are respectively connected with the shaft of the frame (1) to enable the drive roll to freely roll, one end of the drive roll is fixedly connected with a flange (18), a first drive roll (20) is arranged beside the flange, a friction clutch plate (19) is arranged on the side surface of the first drive roll facing the flange, a pressure spring (22) and a fastener (21) for locking the pressure spring are arranged on the other side surface of the first drive roll, a transmission belt (23) is sleeved on the circumferential surface of the first drive roll (20), the other end of the transmission belt is sleeved on a second drive roll (24), the second drive roll is connected with the output end of a power output system, and the power output system is a drive motor of the drive roll of the slitting rewinder.

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