Kraft paper flattening equipment

Abstract

The utility model relates to the technical field of kraft paper processing, in particular to kraft paper flattening equipment. The kraft paper flattening device comprises a machine shell, a feeding conveying belt arranged at the front end of the machine shell and used for conveying in the front-back direction, a discharging conveying belt arranged at the rear end of the machine shell and used for conveying in the front-back direction, a flattening assembly arranged on the front portion in the machine shell and used for flattening kraft paper, and a flattening assembly arranged on the rear portion in the machine shell and used for pressing the kraft paper in the thickness direction. The kraft paper flattening device solves the problem that the surface of kraft paper subjected to calendaring operation in an existing flattening device is prone to wrinkles.

Description

TECHNICAL FIELD

[0001] The utility model relates to kraft paper processing technical field especially, relate to a kraft paper flattening equipment. BACKGROUND

[0002] In the kraft paper production process, in order to improve the paper surface performance, such as smoothness and gloss, and improve the paper web thickness fluctuation, etc., often need to carry out the calendering operation to paper. The calendering operation of paper is by exerting certain pressure to paper, so that paper produces deformation in its thickness direction. When the pressure is removed, part of paper deformation recovers, another part will be permanently kept.

[0003] At present, in the production and processing process, the kraft paper produced by the last process is transported to the flattening device by manual work, but there are the following problems in the process:

[0004] 1, since the error exists in manual operation, in the process of manual transport, since the kraft paper is thrown directly on the conveying belt of flattening device by manual, and then the kraft paper is pulled flat by visual inspection and hand cooperation, but there is a certain error in manual operation, and the longer the work time, the greater the possibility of error, which leads to the formation of wrinkles on the surface of kraft paper put into the flattening device, at this time, the kraft paper put in is flattened, and the wrinkle marks are left on the surface of kraft paper, which leads to the problem of damaging the surface appearance of kraft paper. UTILITY MODEL CONTENT

[0005] In order to solve the above problems, the utility model aims at providing a kraft paper flattening equipment, which aims at solving the problem that the surface of kraft paper subjected to calendering operation exists wrinkles in the existing flattening device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A kraft paper flattening equipment, comprising a casing, a feeding conveying belt arranged at the front end of the casing and conveying in the front-back direction, a discharging conveying belt arranged at the rear end of the casing and conveying in the front-back direction, a flattening assembly arranged in the front part of the casing and used for arranging and flattening kraft paper, and a flattening assembly arranged in the rear part of the casing and used for pressing kraft paper in the thickness direction;

[0008] The lower wall of the casing is provided with a blocking block arranged in the left-right direction and higher than the upper side of the feeding conveying belt at the front end;

[0009] The leveling assembly comprises a pair of gear and rack mechanisms arranged on the inner walls of the left and right sides of the shell, a pair of fixed columns rotatably connected with the gears of the corresponding gear and rack mechanisms, a pair of horizontal fixed plates fixedly arranged on the ends of the fixed columns away from the gears of the corresponding gear and rack mechanisms, a pair of pressure sensors fixedly arranged on the rear ends of the upper sides of the corresponding horizontal fixed plates, a pair of vertical telescopic motors fixedly arranged on the sides of the corresponding horizontal fixed plates close to the corresponding gear and rack mechanisms, a pair of horizontal clamping plates fixedly connected with the output shafts of the corresponding vertical telescopic motors and arranged above the corresponding horizontal fixed plates, a pair of first transmission lines for electrically connecting the corresponding side pressure sensors and the vertical telescopic motors, a pair of rotating motors arranged on the outer walls of the corresponding sides of the shell and having the output shafts fixedly connected with the gears of the corresponding gear and rack mechanisms in the axial direction, and a pair of second transmission lines for electrically connecting the vertical telescopic motors and the corresponding side rotating motors.

[0010] The front parts of the racks of the two gear and rack mechanisms are arranged in a curved manner along the upper surface of the feeding conveying belt towards the upper surface of the material blocking block, and the rear parts of the racks of the two gear and rack mechanisms are arranged along the length direction of the upper surface of the material blocking block.

[0011] More preferably, the flattening assembly comprises a horizontal conveying belt fixedly arranged on the rear end of the material blocking block, a fixed roller rotatably connected with the inner walls of the left and right sides of the shell and arranged vertically above the fixed roller, a first driving motor fixedly arranged on the outer wall of the left side of the shell and having the output shaft fixedly connected with the rotating shaft of the fixed roller in the axial direction, and a second driving motor fixedly arranged on the outer wall of the left side of the shell and having the output shaft fixedly connected with the rotating shaft of the flattening roller in the axial direction.

[0012] The rotating directions of the fixed roller and the flattening roller are opposite.

[0013] More preferably, the front end of the material blocking block is provided with a circular arc end.

[0014] More preferably, a flexible pulling strip is fixedly arranged on the middle section of the upper surface of the material blocking block in the left-right direction, and the free end of the flexible pulling strip is arranged towards the rear.

[0015] More preferably, a material supporting member is arranged between the horizontal fixed plates on the front end of the inner lower side of the shell.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model discloses a kraft paper is placed on the feeding conveyor belt, is transported through the feeding conveyor belt, causes kraft paper front end one corner movable placement on the horizontal fixed plate, and with corresponding side pressure sensor contact, make the pressure sensor detect the contact of kraft paper and input electric signal into vertical telescopic motor, and drive corresponding side vertical telescopic motor starts, drives corresponding side horizontal clamping plate to the horizontal fixed plate upper surface movable, and exerts clamping pressure to one corner of kraft paper placed on the horizontal fixed plate, and then with the continuous transportation of feeding conveyor belt, make kraft paper front end another corner be transported and enter another horizontal fixed plate, simultaneously with another pressure sensor abutment contact, cause another pressure sensor to identify another corner of kraft paper, and drive another vertical telescopic motor drives another horizontal clamping plate to slide down, clamps kraft paper, when both sides horizontal clamping plate cannot continue to move down under the action of both sides vertical telescopic motor, both sides vertical telescopic motor passes through first transmission line and second transmission line and inputs this electric signal into both sides rotating motor, thereby the trend both sides rotating motor synchronous start drives fixed column along the rack path in gear rack mechanism and moves backwards, thereby after both sides horizontal clamping plate clamps kraft paper rear end two corners and makes two corners be in same straight line, and drives kraft paper whole to slide back, thereby through pulling kraft paper rear side edge and drives kraft paper whole movable, thereby through the effect of pulling and drawing and draws kraft paper whole flat, the problem that the surface of kraft paper under the operation of pressing light in existing flattening device is prone to wrinkle is solved.

[0018] 2. The utility model discloses a kraft paper whole moves back in the process of being driven by both sides horizontal clamping plate, and the lower surface of kraft paper passes through the surface of flexible pulling strip when, is subjected to the friction force effect of flexible pulling strip surface, thereby the friction force that deviates horizontal clamping plate pulling direction is applied to kraft paper paper body, thereby further exerts the pulling force of going forward to kraft paper rear part, causes kraft paper whole to be straightened, reaches the effect of driving kraft paper flat. ACCURACY

[0019] Figure 1 It is a structure schematic view of the utility model of whole shaft side view.

[0020] Figure 2 It is a whole shaft side view (hidden casing, feeding conveyor belt and discharge conveyor belt) of the utility model.

[0021] Figure 3 It is a solitary view of one side of the utility model of pulling flat subassembly.

[0022] Explanation of reference signs: 1, shell; 2, feeding conveyor belt; 3, discharging conveyor belt; 4, flattening assembly; 41, gear and rack mechanism; 42, fixed column; 43, horizontal fixed plate; 44, pressure sensor; 45, vertical telescopic motor; 46, horizontal clamping plate; 47, first transmission line; 48, rotating motor; 49, second transmission line; 5, flattening assembly; 51, horizontal conveyor belt; 52, fixed roller; 53, flattening roller; 54, first drive motor; 55, second drive motor; 6, material blocking block; 7, flexible pulling strip; 8, material supporting piece. DETAILED DESCRIPTION

[0023] The utility model will be made further detailed explanation in combination with the drawings and specific embodiment

[0024] As Figure 1 , Figure 2 and Figure 3 shown, the kraft paper flattening equipment of the embodiment includes shell 1, the feeding conveyor belt 2 that is arranged at the front end of shell 1 and is conveyed along front and back directions, the discharging conveyor belt 3 that is arranged at the rear end of shell 1 and is conveyed along front and back directions, the flattening assembly 4 that is arranged in the front part of shell 1 and is used to arrange and flatten kraft paper and the flattening assembly 5 that is arranged in the rear part of shell 1 and is used to press kraft paper in the thickness direction.

[0025] The material blocking block 6 that is arranged along left and right directions and has the front side higher than the upper side of feeding conveyor belt 2 is fixedly arranged at the front end of the lower wall in shell 1.

[0026] The flattening assembly 4 includes a pair of gear and rack mechanisms 41 that are respectively arranged on the inner walls of the left and right sides of shell 1, a pair of fixed columns 42 that are respectively rotatably connected with the gears in the gear and rack mechanisms 41 on the corresponding sides, a pair of horizontal fixed plates 43 that are respectively fixedly arranged on the ends of the fixed columns 42 away from the gears in the gear and rack mechanisms 41 on the corresponding sides, a pair of pressure sensors 44 that are respectively fixedly arranged on the rear ends of the upper sides of the horizontal fixed plates 43 on the corresponding sides, a pair of vertical telescopic motors 45 that are respectively fixedly arranged on the sides of the horizontal fixed plates 43 close to the gear and rack mechanisms 41 on the corresponding sides, a pair of horizontal clamping plates 46 that are respectively fixedly connected with the output shafts of the vertical telescopic motors 45 and arranged above the horizontal fixed plates 43 on the corresponding sides, a pair of first transmission lines 47 that are respectively used for electrically connecting the pressure sensors 44 and the vertical telescopic motors 45 on the corresponding sides, a pair of rotating motors 48 that are respectively arranged on the outer walls of the corresponding sides of shell 1 and have the output shafts axially fixedly connected with the gears in the gear and rack mechanisms 41 on the corresponding sides and a pair of second transmission lines 49 that are respectively used for electrically connecting the vertical telescopic motors 45 and the rotating motors 48 on the corresponding sides.

[0027] The front parts of the racks in the two gear and rack mechanisms 41 are arranged along the upper surface of feeding conveyor belt 2 and bent towards the upper surface of material blocking block 6, the rear parts of the racks in the two gear and rack mechanisms 41 are arranged along the length direction of the upper surface of material blocking block 6 and the upper surfaces of the horizontal fixed plates 43 are horizontally arranged with the upper surface of feeding conveyor belt 2.

[0028] The product in use, the operator will put the kraft paper of the previous process processing completed on the feeding conveyor belt 2, so that the kraft paper moves along with the feeding conveyor belt 2 to the direction of the blocking block 6, because the kraft paper placed on the feeding conveyor belt 2 cannot guarantee its complete flatness, so that in the process of moving back, one end of the kraft paper will be placed on the horizontal fixed plate 43 on one side first, and with the continuous movement of the kraft paper, the kraft paper corner on this side will be in contact with the pressure sensor 44 on this side, so that the pressure sensor senses the kraft paper and transmits the electrical signal into the vertical telescopic motor 45 on the same side through the first transmission line 47 on the same side, so that the vertical telescopic motor 45 starts, and drives the horizontal clamping plate 46 on the upper side to slide downward, and continuously approaches the horizontal fixed plate 43 on the same side, clamping the rear corner of the kraft paper on the same side. Because of the characteristics of the kraft paper itself, under the influence of external force, the kraft paper itself will only have length direction or width direction wrinkles, and will not have wrinkles in two directions at the same time, so in the process of continuously moving the kraft paper to the front end of the blocking block 6, because the two corners on the rear side of the kraft paper are not on the same horizontal line, the rear side of the kraft paper is in contact with the blocking block 6, and the other corner on the rear side of the kraft paper is continuously moved to the left and right directions until it is moved to the horizontal line of the other clamped corner. At this time, the kraft paper is in the form of a wave-shaped wrinkle in the front and rear directions, and the other corner on the rear side of the kraft paper is placed on the other horizontal fixed plate 43 and in contact with the other pressure sensor 44, so that the other pressure sensor 44 also receives the electrical signal of the other corner of the kraft paper in contact and transmits the electrical signal to the vertical telescopic motor 45 on the same side through the first transmission line 47 on the same side, so as to drive the vertical telescopic motor 45 on the same side to drive the horizontal clamping plate 46 on the same side to move downward, so as to clamp and fix the other corner of the kraft paper. When both sides of the vertical telescopic motor 45 cannot continue to drive the corresponding side horizontal clamping plate 46 to move downward, the vertical telescopic motor 45 on both sides simultaneously transmits electrical signals to the rotating motor 48 on both sides through the second transmission line 49 on both sides, so as to drive the rotating motor 48 on both sides to rotate synchronously, so as to drive the gear in the gear and rack mechanism 41 on both sides to move along the rack path direction, so as to drive the fixed column 42 on both sides to move backward synchronously, so as to drive the horizontal clamping plate 46 on both sides clamping the rear side of the kraft paper to move backward synchronously, so that the kraft paper is pulled by the pulling assembly 4 in the rear direction through the blocking block 6, and the front part of the kraft paper is pulled away from the activity direction of the pulling assembly 4 under the influence of its own gravity, so as to promote the kraft paper to be flat.

[0029] As Figure 1 , Figure 2 and Figure 3As shown, the flattening assembly 5 includes a horizontal conveying belt 51 fixed to the rear end of the material blocking block 6, a fixed roller 52 arranged at the rear end of the horizontal conveying belt 51 and rotatably connected to the inner walls of the left and right sides of the shell 1, a flattening roller 53 rotatably connected to the inner walls of the left and right sides of the shell 1 and arranged vertically above the fixed roller 52, a first driving motor 54 fixed to the left outer wall of the shell 1 and having an output shaft fixedly connected to the rotating shaft of the fixed roller 52, and a second driving motor 55 fixed to the left outer wall of the shell 1 and having an output shaft fixedly connected to the rotating shaft of the flattening roller 53.

[0030] The fixed roller 52 and the flattening roller 53 are arranged in opposite directions of rotation.

[0031] When the product is in use, after the gears in the gear and rack mechanism 41 on both sides move to the end of the rack, the rotating motor 48 cannot continue to drive the gears to rotate, thereby releasing the electrical signal to the second transmission line 49, and driving the vertical telescopic motor 45 to drive the horizontal clamping plate 46 to move upward, so that the two corners of the rear side of the kraft paper are not subjected to clamping force, and the center of the kraft paper is driven to move backward under the action of the horizontal conveying belt 51. Since only a small part of the two corners of the rear side of the kraft paper is on the horizontal fixed plate 43, the kraft paper on both sides is raised upward through the side wall of the pressure sensor 44 under the action of the backward driving force of the horizontal conveying belt 51, and then is completely placed on the horizontal conveying belt 51 and is sent into the rotating and flattening gap between the fixed roller 52 and the flattening roller 53. After being flattened, it falls on the discharge conveying belt 3 for subsequent collection.

[0032] As shown in Figure 1 and Figure 2 The front end of the material blocking block 6 is provided with a circular arc end.

[0033] When the product is in use, the setting of the circular arc end prevents the kraft paper from being broken or damaged by the sharp stress when passing through the bending part of the material blocking block 6.

[0034] As shown in Figure 1 and Figure 2 A flexible pulling strip 7 is fixed on the middle section of the upper surface of the material blocking block 6 in the left-right direction, and the free end of the flexible pulling strip 7 is arranged towards the rear.

[0035] When the product is in use, after the kraft paper is driven by the flattening assembly 4 to pass through the surface of the flexible pulling strip 7, a friction force is formed between the lower surface of the kraft paper and the upper surface of the flexible pulling strip 7, which further causes the front part of the kraft paper to be subjected to a pulling force away from the pulling direction of the flattening assembly 4, so that the surface of the kraft paper is flat.

[0036] As shown in Figure 1 and Figure 2 A material supporting piece 8 is arranged between the two horizontal fixed plates 43 at the front end of the lower side of the shell 1.

[0037] The working principle of the device is:

[0038] First step: the operator places the kraft paper processed in the previous process on the feeding conveyor belt 2, causing the kraft paper to move towards the material blocking block 6 along with the feeding conveyor belt 2. Since the kraft paper cannot be completely flat when placed on the feeding conveyor belt 2, one end of the kraft paper will be placed on the horizontal fixed plate 43 on one side during the movement of the kraft paper, and the kraft paper will continue to move, causing the corner of the kraft paper on one side to come into contact with the pressure sensor 44 on the same side, so that the pressure sensor senses the kraft paper and transmits the electrical signal to the vertical telescopic motor 45 on the same side through the first transmission line 47 on the same side, causing the vertical telescopic motor 45 to start and drive the horizontal clamping plate 46 on the upper side to slide downward and continuously approach the horizontal fixed plate 43 on the same side, clamping the corner of the kraft paper on the back end on the same side.

[0039] Second step: due to the characteristics of the kraft paper, under the influence of external forces, the kraft paper will only have lengthwise or widthwise wrinkles, but not both, so during the continuous movement of the kraft paper towards the front end of the material blocking block 6, the two corners on the back side of the kraft paper are not on the same horizontal line, causing the back side of the kraft paper to abut against the material blocking block 6 and causing the other corner on the back side of the kraft paper to continuously move left and right until it reaches the horizontal line of the other clamped corner, at which point the kraft paper has a wave-shaped wrinkle in the front-back direction. At this time, the other corner on the back side of the kraft paper is placed on the other horizontal fixed plate 43 and comes into contact with the other pressure sensor 44, causing the other pressure sensor 44 to also receive the electrical signal from the abutment of the other corner of the kraft paper and transmit the electrical signal to the vertical telescopic motor 45 on the same side through the first transmission line 47 on the same side, thereby driving the vertical telescopic motor 45 on the same side to drive the horizontal clamping plate 46 on the same side to move downward, clamping and fixing the other corner of the kraft paper. When both vertical telescopic motors 45 cannot continue to drive the corresponding horizontal clamping plates 46 to move downward, both vertical telescopic motors 45 simultaneously transmit electrical signals to both rotating motors 48 through second transmission lines 49 on both sides, driving both rotating motors 48 to rotate synchronously, thereby driving the gears in both gear and rack mechanisms 41 to move the fixed columns 42 on both sides synchronously towards the back, thereby moving the horizontal clamping plates 46 on both sides that are clamping the back side of the kraft paper synchronously towards the back.

[0040] Third step: causing the back side of the kraft paper to be pulled towards the back. At this time, the front part of the kraft paper is affected by the gravitational force and the friction between the kraft paper and the material blocking block 6 when passing through the front circular arc end, thereby exerting a pulling force on the front part of the kraft paper in the direction away from the activity direction of the flattening assembly 4, thereby causing the entire kraft paper to be flattened.

[0041] Fourth step: and in the leveling assembly 4 driven kraft paper through the flexible pull strip 7 surface, the lower surface of kraft paper and flexible pull strip 7 upper surface between the friction force, further promote the front of the kraft paper received away from the pull leveling assembly 4 direction of the pulling force, so that the surface of the kraft paper flat.

[0042] Fifth step: in the two sides gear rack mechanism 41 in the gear to the end of the rack after the activity, rotating motor 48 can not continue to drive the gear rotation, thus on the second transmission line 49 release of electrical signal, and drive the vertical telescopic motor 45 drive horizontal clamping plate 46 upward activity, so that the kraft paper rear side two angle not by clamping force, and in the horizontal conveyor belt 51 drive make kraft paper center driven to the rear activity, because the kraft paper rear side only two angle small part in horizontal fixed plate 43, so in the kraft paper center by horizontal conveyor belt 51 of the rear drive force under the action of, so that the kraft paper left and right sides up through the pressure sensor 44 side wall, and then completely placed on the horizontal conveyor belt 51, and be sent into the fixed roller 52 and flat roller 53 rotation flat gap, after the flat drop in the discharge conveyor belt 3, for subsequent collection.

[0043] The above merely for the specific embodiments of the present application, not therefore limit the patent range of the present application, any equivalent structure transformation using the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A kraft paper flattening device, characterized in that: It includes a housing (1), a feeding conveyor belt (2) located at the front end of the housing (1) and conveying in the front-back direction, a discharging conveyor belt (3) located at the rear end of the housing (1) and conveying in the front-back direction, a flattening component (4) located inside the front of the housing (1) and used to flatten the kraft paper, and a pressing component (5) located inside the rear of the housing (1) and used to apply pressure to the thickness direction of the kraft paper. The lower inner wall of the housing (1) is fixedly provided with a baffle block (6) that is arranged in the left-right direction and is higher than the upper side of the feeding conveyor belt (2); The flattening assembly (4) includes a pair of gear and rack mechanisms (41) respectively disposed on the inner walls of the left and right sides of the housing (1), a pair of fixed columns (42) respectively rotatably connected to the gears in the corresponding gear and rack mechanisms (41), a pair of horizontal fixed plates (43) respectively fixed on the fixed columns (42) away from the gears in the corresponding gear and rack mechanisms (41), a pair of pressure sensors (44) respectively fixed on the upper rear end of the corresponding horizontal fixed plates (43), and a pair of vertical telescopic motors (45) respectively fixed on the side of the corresponding horizontal fixed plates (43) near the corresponding gear and rack structure. 5) A pair of horizontal clamping plates (46) fixedly connected to the output shaft of the corresponding vertical telescopic motor (45) and located above the corresponding horizontal fixed plate (43); a pair of first transmission lines (47) for electrically connecting the corresponding side pressure sensor (44) and the vertical telescopic motor (45); a pair of rotating motors (48) located on the corresponding side outer wall of the housing (1) and whose output shafts are axially fixedly connected to the gears in the corresponding side gear rack structure; and a pair of second transmission lines (49) for electrically connecting the two sides vertical telescopic motors (45) and the corresponding side rotating motors (48). The front part of the rack in the two gear rack mechanisms (41) is bent along the upper surface of the feeding conveyor belt (2) toward the upper surface of the stop block (6), and the rear part of the rack in the two gear rack mechanisms (41) is arranged along the length direction of the upper surface of the stop block (6). The upper surface of the horizontal fixing plate (43) is horizontally arranged with the upper surface of the feeding conveyor belt (2).

2. The kraft paper flattening device according to claim 1, characterized in that: The flattening assembly (5) includes a horizontal conveyor belt (51) fixed at the rear end of the baffle block (6), a fixed roller (52) located at the rear end of the horizontal conveyor belt (51) and rotatably connected to the left and right sides of the inner wall of the machine housing (1) at its left and right ends respectively, a flattening roller (53) rotatably connected to the left and right sides of the inner wall of the machine housing (1) and located vertically above the fixed roller (52), a first drive motor (54) fixed on the left outer wall of the machine housing (1) and whose output shaft is axially fixedly connected to the rotation shaft of the fixed roller (52), and a second drive motor (55) fixed on the left outer wall of the machine housing (1) and whose output shaft is axially fixedly connected to the rotation shaft of the flattening roller (53); The fixed roller (52) and the flattening roller (53) are arranged in opposite directions of rotation.

3. The kraft paper flattening device according to claim 1, characterized in that: The front end of the retaining block (6) is provided with an arc end.

4. The kraft paper flattening device according to claim 1, characterized in that: A flexible tension strip (7) is fixedly provided in the middle section of the upper surface of the baffle block (6) along the left and right direction, and the free end of the flexible tension strip (7) is set to face the rear.

5. The kraft paper flattening device according to claim 1, characterized in that: The material support component (8) is located at the lower front end of the inner side of the housing (1) and between the two horizontal fixing plates (43).

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