Efficient kraft paper drying equipment

Abstract

The utility model relates to the technical field of kraft paper processing, in particular to efficient drying equipment for kraft paper. The drying machine comprises a machine shell, a feeding conveying belt fixedly arranged at the front end of the machine shell, a discharging conveying belt fixedly arranged at the rear end of the machine shell, and a drying assembly fixedly arranged on the lower portion in the machine shell. The flattening assembly is movably arranged in the machine shell and used for enabling the dried objects to move in the direction from the feeding conveying belt to the discharging conveying belt, and the flattening assembly is arranged in the machine shell in a sliding mode and used for enabling the dried objects to be kept in a flat state. The kraft paper drying device solves the problem that kraft paper is wrinkled in the kraft paper drying process.

Description

TECHNICAL FIELD

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

[0002] Kraft paper is used as packing material. The strength is very high. Usually presents yellowish brown. The kraft paper pulp of half bleaching or full bleaching presents light brown, butter or white. The breaking length is generally above 6000m. The tear resistance, rupture work and dynamic strength are very high. It is mostly web paper, also has flat sheet paper. Adopt sulphate needle leaf wood pulp as raw material, through beating, is made on long net paper machine. Can be used as cement bag paper, envelope paper, gum sealing paper, pitch paper, cable protection paper, insulating paper etc. And kraft paper needs to carry out drying treatment to kraft paper when processing.

[0003] The existing kraft paper drying device mostly carries out air drying to the packing paper through wind power, and when the packing paper needs to be dried in actual use, hot air is used to blow the packing paper, so that the following problems exist in the process of blowing and drying:

[0004] 1. Since the drying equipment continuously blows the packing paper, wrinkles appear on the outer wall of the kraft paper, so that after the drying is completed, the operator needs to flatten and press each kraft paper again to restore the flat state, which causes additional operation of the worker and reduces the efficiency of the whole drying operation process.

[0005] 2. In order to keep the kraft paper flat when it is put into the drying equipment, the operator needs to arrange and place each kraft paper in the equipment separately, which greatly reduces the drying efficiency. INVENTION CONTENTS

[0006] In order to solve the above problems, the purpose of the utility model is to provide a kraft paper high -efficient drying equipment, which solves the problem that kraft paper will produce wrinkles in the drying process.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A kind of kraft paper high -efficient drying equipment, including casing, the feeding conveyor belt of being fixedly arranged in the front end of casing, the discharging conveyor belt of being fixedly arranged in the rear end of casing, the drying assembly of being fixedly arranged in the lower part of casing, the flattening assembly of being movably arranged in casing and being used to make drying object move from the feeding conveyor belt to the direction of discharging conveyor belt and the flattening assembly of being slidably arranged in casing and being used to make drying object keep flat state;

[0009] The drying assembly includes horizontal drying plate fixedly arranged in the lower part of casing and heating pipe fixedly arranged on the lower side of horizontal drying plate;

[0010] The flattening assembly comprises a pair of sliding tracks arranged above horizontal drying plates on the inner wall of the cabinet in the front-rear direction, a pair of limiting members respectively slidingly arranged in the two corresponding sliding tracks, rotating columns respectively rotationally connected with the limiting members on the two sides, a rotating motor movably arranged on the left side of the cabinet and used to drive the rotating columns to rotate in the circumferential direction, a stepping lead screw motor fixedly arranged on the right side of the cabinet and used to drive the limiting member on the corresponding side to slide along the sliding track in the front-rear direction, and flexible adhesive strips arranged on the side wall of the rotating column in the circumferential direction.

[0011] The output shaft of the rotating motor penetrates through the limiting member on the corresponding side and is axially fixedly connected with the corresponding side of the rotating column, and the lead screw in the stepping lead screw motor is arranged in the front-rear direction and penetrates through the limiting member on the corresponding side.

[0012] The flattening assembly comprises a pair of gear and rack mechanisms fixedly arranged on the upper parts of the left and right sides of the outer wall of the cabinet in the height direction of the cabinet, a connecting rod penetrating through the cabinet and axially fixedly connected with the inner gear of the gear and rack mechanisms on the two sides, a hinged seat arranged in the cabinet and rotationally connected with the connecting rod, a flattening plate hingedly arranged at the lower end of the hinged seat, a counterweight fixedly arranged on the front end of the upper side of the flattening plate, and a driving motor movably arranged on the left side of the cabinet and used to drive the gear in the gear and rack mechanism on the corresponding side to move up and down in the height direction of the cabinet.

[0013] The output shaft of the driving motor is axially fixedly connected with the gear in the gear and rack mechanism on the corresponding side.

[0014] More preferably, a plurality of steam discharge holes are arranged on the flattening plate in the interval, and an air extractor is fixedly arranged on the flattening plate and used to discharge the air on the lower side of the flattening plate upward through the steam discharge holes.

[0015] More preferably, a plurality of air permeation grooves are arranged on the upper side of the cabinet in the interval.

[0016] More preferably, a pair of limiting rail groups for keeping the hinged seat vertically movable are respectively arranged on the left and right sides in the cabinet.

[0017] Each of the limiting rail groups comprises a pair of limiting sub-rails fixedly arranged on the front and rear sides of the connecting rod in the height direction of the cabinet, and a pair of limiting blocks fixedly arranged on the side wall of the hinged seat and respectively embedded in the limiting sub-rails on the corresponding side.

[0018] More preferably, rounded corners are respectively arranged on the front and rear ends of the flattening plate.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model discloses a flexible adhesion strip is provided on the lateral wall of the rotating column, and the flexible adhesion strip is connected with the rear end of the kraft paper, so that the kraft paper is pulled and is in the horizontal flat state, and the problem that the kraft paper is wrinkled in the drying process is solved.

[0021] 2. After the kraft paper is clamped between the flattening plate and the horizontal drying plate, the temperature of the horizontal drying plate is continuously increased through the action of the heating pipe, so that the moisture in the kraft paper is evaporated through high temperature, and the air under the flattening plate is subjected to the upward suction force through the start of the air extractor, so that the air pressure on the upper side of the kraft paper is lower than that on the lower side, thereby accelerating the rate of hot air entering the kraft paper and expelling the humid air in the kraft paper, and accelerating the drying rate. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure schematic view of the whole shaft side view of the utility model;

[0023] Figure 2 It is a whole explosion view (hidden casing, feeding conveyor belt and discharging conveyor belt) of the utility model;

[0024] Figure 3 It is a structure schematic view of the whole vertical section of the utility model.

[0025] Mark explanation: 1, casing; 2, feeding conveyor belt; 3, discharging conveyor belt; 4, drying assembly; 41, horizontal drying plate; 42, heating pipe; 5, flatten the component; 51, sliding rail; 52, limit piece; 53, rotating column; 54, rotating motor; 55, step lead screw motor; 56, flexible adhesion strip; 6, flattening component; 61, gear rack mechanism; 62, connecting rod; 63, hinged seat; 64, flattening plate; 65, counterweight; 66, drive motor; 7, exhaust hole; 8, air extractor; 9, air slot; 10, limit rail group; 101, limit subtrack; 102, limit block. DETAILED DESCRIPTION

[0026] The utility model will be made further detailed explanation below combining with the drawings and specific embodiment

[0027] As Figure 1 , Figure 2 and Figure 3 The embodiment of kraft paper high -efficient drying equipment, including casing 1, the feeding conveyor belt 2 of fixedly arranged at the front end of casing 1, the discharge conveyor belt 3 of fixedly arranged at the rear end of casing 1, the drying assembly 4 of fixedly arranged at the lower part in casing 1, the pull -flat component 5 of being arranged in casing 1 and being used to make drying object from the feeding conveyor belt 2 to the direction activity of discharge conveyor belt 3 and the flattening component 6 of slidingly arranged in casing 1 and being used to make drying object keep flat state;

[0028] Drying assembly 4 includes the horizontal drying plate 41 of fixedly arranged at the lower part in casing 1 and the heating pipe 42 of fixedly arranged at the lower side of horizontal drying plate 41;

[0029] Pull -flat component 5 includes a pair of sliding tracks 51 being arranged above horizontal drying plate 41 in the inner wall of casing 1 along front and back direction, a pair of limiting pieces 52 being respectively slidingly arranged in two sides corresponding sliding tracks 51, the rotating column 53 of being respectively rotatably connected with two sides limiting pieces 52 at both ends, the rotating motor 54 of being arranged in the left side of casing 1 and being used to drive rotating column 53 circumferential rotation, the step lead screw motor 55 of being fixedly arranged in the right side of casing 1 and being used to drive corresponding side limiting piece 52 along sliding track 51 forward and backward sliding and the flexible adhesive strip 56 of being arranged in the lateral wall of rotating column 53 along the circumferential arrangement interval;

[0030] Rotating motor 54 output shaft penetrates corresponding side limiting piece 52 and is axially fixedly connected with corresponding side rotating column 53, and the lead screw in step lead screw motor 55 is arranged along the front and back direction and penetrates corresponding side limiting piece 52;

[0031] Flattening component 6 includes a pair of gear rack mechanisms 61 being fixedly arranged on the upper part of the left and right sides of the outer wall of casing 1 along the height direction of casing 1, the connecting rod 62 of being arranged and being axially fixedly connected with the gear in both sides gear rack mechanisms 61 through casing 1, the hinged seat 63 of being arranged in casing 1 and being rotatably connected with connecting rod 62, the flattening plate 64 of being hingedly arranged at the lower end of hinged seat 63, the counterweight 65 of being fixedly arranged on the front end of the upper side of flattening plate 64 and the drive motor 66 of being arranged in the left side of casing 1 and being used to drive the gear in corresponding side gear rack mechanism 61 along the height direction of casing 1 up and down movement;

[0032] Drive motor 66 output shaft is axially fixedly connected with the gear in corresponding side gear rack mechanism 61.

[0033] The product is used, the just made kraft paper needs to be placed on the feeding conveyor belt 2 and then input into the casing 1 through the feeding conveyor belt 2, and the step motor 55 is started to drive the limiting part 52 to slide along the sliding rail 51 to the front end of the sliding rail 51, so as to make the rotating column 53 move to the upper side of the rear end of the feeding conveyor belt 2, at this time, the rotating motor 54 is started to drive the rotating column 53 to rotate in the circumferential direction, so that the free end of the flexible adhesive strip 56 on the rotating column 53 is adhered to the upper side of the rear end of the kraft paper on the feeding conveyor belt 2, at this time, the step motor 55 is rotated in the direction to drive the limiting part 52 to slide to the rear end of the sliding rail 51, so as to drive the rotating column 53 to slide to the rear side of the casing 1, so as to drive the kraft paper to move from the feeding conveyor belt 2 to the horizontal drying plate 41, in this process, the driving motor 66 is started to drive the flattening plate 64 to move downward, due to the arrangement of the counterweight 65, the front end of the flattening plate 64 is inclined downward in the normal state, so that the front end of the flattening plate 64 abuts and presses the front end of the kraft paper on the horizontal drying plate 41 during the downward movement of the flattening plate 64, at this time, the kraft paper is still pulled by the rear pulling force of the rotating column 53, so as to make the kraft paper be pulled and flattened, so that the kraft paper is kept flat during the process that the flattening plate 64 completely presses the kraft paper, the flexible adhesive strip 56 is separated from the rear end of the kraft paper due to the limited adhesion, so that the kraft paper is pulled and flattened by the pulling and flattening assembly 5, and kept flat under the action of the flattening plate 64, so as to solve the problem that the kraft paper will wrinkle during the drying process.

[0034] As shown in Figure 1 , Figure 2 and Figure 3 , a plurality of steam discharge holes 7 are arranged on the flattening plate 64, and an air extractor 8 is fixed on the flattening plate 64 for discharging air on the lower side of the flattening plate 64 upward through the steam discharge holes 7.

[0035] When the product is used, the heating pipe 42 is started to continuously heat the temperature of the horizontal drying plate 41, so that the moisture in the kraft paper is evaporated by high temperature, and the air extractor 8 is started to discharge the air on the upper side of the kraft paper upward through the steam discharge holes 7 by the air extractor 8, so that the air pressure on the upper side of the kraft paper is lower than that on the lower side, so as to make the high-temperature gas on the lower side of the kraft paper flow to the low-pressure direction, so as to accelerate the efficiency of the high-temperature gas entering the kraft paper to take out the moisture in the kraft paper.

[0036] As shown in Figure 1 and Figure 3 , a plurality of air permeation grooves 9 are arranged on the upper side of the casing 1.

[0037] When the product is used, the hot gas carrying gas extracted by the air extractor 8 is discharged through the air permeation grooves 9, so as to prevent the problem that the humid hot gas is accumulated in the casing 1 to cause the humidity in the casing 1 to be too large.

[0038] As shown in Figure 2 and Figure 3 The left and right sides of the shell 1 are respectively provided with a pair of limiting rail groups 10 for keeping the hinge seat 63 vertically movable;

[0039] Each limiting rail group 10 includes a pair of limiting sub-rails 101 respectively fixed on the front and rear sides of the connecting rod 62 along the height direction of the shell 1, and a pair of limiting blocks 102 respectively embedded in the corresponding side limiting sub-rails 101 and fixed on the side wall of the hinge seat 63.

[0040] When the product is in use, the gear in the gear and rack mechanism 61 moves up and down under the drive of the driving motor 66, causing the hinge seat 63 to move up and down along the shell 1, so that each limiting block 102 slides in the corresponding limiting sub-rail 101, thereby preventing the hinge seat 63 from rotating.

[0041] As shown in Figure 2 and Figure 3 The front and rear ends of the flattening plate 64 are respectively provided with rounded corners.

[0042] When the product is in use, the rounded corners of the flattening plate 64 prevent the ends of the flattening plate 64 from leaving marks on the kraft paper after contacting the kraft paper, thereby preventing the finished product quality of the kraft paper from being affected.

[0043] The working principle of the device is as follows:

[0044] Step 1: Place the freshly made kraft paper that needs to be dried on the feeding conveyor belt 2, and then input it into the shell 1 through the feeding conveyor belt 2. At the same time, start the stepping lead screw motor 55 to drive the limiting piece 52 to slide along the sliding rail 51 to the front end of the sliding rail 51, prompting the rotating column 53 to move to the upper side of the rear end of the feeding conveyor belt 2. At this time, start the rotating motor 54 to drive the rotating column 53 to rotate circumferentially, so that the free end of the flexible adhesive strip 56 on the rotating column 53 adheres to the upper side of the rear end of the kraft paper on the feeding conveyor belt 2. At this time, the stepping lead screw motor 55 is turned in the opposite direction to drive the limiting piece 52 to slide towards the rear end of the sliding rail 51, thereby driving the rotating column 53 to slide towards the rear side of the shell 1, thereby driving the kraft paper to move from the feeding conveyor belt 2 to the horizontal drying plate 41. In this process, start the driving motor 66 to drive the flattening plate 64 to move downward.

[0045] Second step: due to the setting of the counterweight 65, the front end of the pressing plate 64 is inclined downward in the normal state, so that the front end of the pressing plate 64 is in contact with the front end of the kraft paper on the horizontal drying plate 41 during the downward movement of the pressing plate 64. At this time, the kraft paper is still subjected to the rear pulling force of the rotating column 53, so that the kraft paper is pulled and flattened. During the process that the pressing plate 64 completely presses the kraft paper, the kraft paper is pulled and kept flat until the pressing plate 64 completely presses the kraft paper, and the flexible adhesive strip 56 is separated from the rear end of the kraft paper due to the limited adhesion.

[0046] Third step: start the heating pipe 42 to continuously heat the temperature of the horizontal drying plate 41, so that the water in the kraft paper is evaporated by high temperature, and the air pump 8 is started, so that the air on the upper side of the kraft paper is discharged upward through the exhaust hole 7 by the air pump 8. The air pressure on the upper side of the kraft paper is lower than that on the lower side of the kraft paper, so that the high-temperature gas on the lower side of the kraft paper flows to the low-pressure direction, thereby accelerating the efficiency of the high-temperature gas entering the kraft paper to carry out the water in the kraft paper.

[0047] Fourth step: after drying is completed, the driving motor 66 is started to drive the pressing plate 64 to move upward, so that the rear end of the pressing plate 64 is separated from the abutting position with the kraft paper, and the rotating motor 54 is rotated to drive the flexible adhesive strip 56 to be adhered to the upper side of the rear end of the kraft paper again. Then the stepping lead screw motor 55 drives the rotating column 53 to move rearward again, so as to drive the kraft paper to move in the direction of the discharge conveyor belt 3, so that the kraft paper is sent to the discharge conveyor belt 3 and is brought into the subsequent collecting device by the discharge conveyor belt 3, and the drying process is completed.

[0048] The above is only a specific embodiment of the present application, and does not limit the patent range of the present application. Any equivalent structural transformation or direct or indirect application in other related technical fields based on the content of the present application is also included in the patent protection range of the present application.

Claims

1. A high-efficiency kraft paper drying device, characterized in that: Includes a housing (1), a feeding conveyor belt (2) fixed at the front end of the housing (1), a discharging conveyor belt (3) fixed at the rear end of the housing (1), a drying assembly (4) fixed in the lower part of the housing (1), a flattening assembly (5) movably disposed in the housing (1) and used to move the dried object from the feeding conveyor belt (2) to the discharging conveyor belt (3), and a flattening assembly (6) slidably disposed in the housing (1) and used to keep the dried object flat. The drying assembly (4) includes a horizontal drying plate (41) fixed inside the lower part of the housing (1) and a heating tube (42) fixed on the lower side of the horizontal drying plate (41); The flattening assembly (5) includes a pair of sliding rails (51) arranged in the front-back direction above the horizontal drying plate (41) on the inner wall of the housing (1), a pair of limiting members (52) respectively slidably arranged in the corresponding sliding rails (51) on both sides, a rotating column (53) whose two ends are rotatably connected to the limiting members (52) on both sides, a rotating motor (54) movably arranged on the left side of the housing (1) and used to drive the rotating column (53) to rotate circumferentially, a stepper screw motor (55) fixed on the right side of the housing (1) and used to drive the corresponding side limiting member (52) to slide back and forth along the sliding rails (51), and flexible adhesive strips (56) arranged circumferentially and spaced on the side wall of the rotating column (53); The output shaft of the rotary motor (54) passes through the corresponding side limiting piece (52) and is axially fixedly connected to the corresponding side of the rotating column (53). The lead screw in the stepper screw motor (55) passes through the corresponding side limiting piece (52) in the front-back direction. The flattening assembly (6) includes a pair of gear and rack mechanisms (61) fixed along the height direction of the housing (1) on the upper left and right sides of the outer wall of the housing (1), a connecting rod (62) that passes through the housing (1) and is axially fixed to the gears in the gear and rack mechanisms (61) on both sides, a hinge seat (63) that is located in the housing (1) and rotatably connected to the connecting rod (62), a pressing plate (64) that is hinged to the lower end of the hinge seat (63), a counterweight (65) fixed to the upper front end of the pressing plate (64), and a drive motor (66) that is movably located on the left side of the housing (1) and is used to drive the gears in the corresponding gear and rack mechanism (61) to move up and down along the height direction of the housing (1). The output shaft of the drive motor (66) is axially fixedly connected to the gear in the corresponding side gear rack mechanism (61).

2. The high-efficiency kraft paper drying equipment according to claim 1, characterized in that: The pressure plate (64) is provided with a plurality of vent holes (7) arranged at intervals, and the pressure plate (64) is fixedly provided with an air pump (8) for discharging the air under the pressure plate (64) upward along the vent holes (7).

3. The high-efficiency kraft paper drying equipment according to claim 2, characterized in that: The upper side of the casing (1) is provided with several ventilation slots (9) arranged at intervals.

4. The high-efficiency kraft paper drying equipment according to claim 1, characterized in that: The housing (1) is provided with a pair of limiting rail groups (10) on the left and right sides respectively to keep the hinge seat (63) moving vertically; Each of the aforementioned limiting rail groups (10) includes a pair of limiting sub-rails (101) fixed along the height direction of the housing (1) on the front and rear sides of the connecting rod (62) respectively, and a pair of limiting blocks (102) fixed on the side wall of the hinge seat (63) and respectively embedded in the corresponding side limiting sub-rails (101).

5. The high-efficiency kraft paper drying equipment according to claim 1, characterized in that: The pressure plate (64) has rounded corners at both the front and rear ends.

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