Preheating mechanism for laminating corrugated boards

Abstract

The utility model discloses a preheating mechanism for laminating corrugated boards, which comprises a supporting seat, a laminating preheating mechanism is mounted in the supporting seat, a smoothing mechanism is connected to the inner wall of the supporting seat in a sliding manner, and the laminating preheating mechanism drives the smoothing mechanism to reciprocate along the moving direction of the paperboards while preheating the paperboards. And the laminating preheating mechanism comprises a motor, the output end of the motor is fixedly connected with a laminating preheating assembly, and a regulation and control assembly is slidably connected into the laminating preheating assembly. The laminating preheating mechanism is arranged, so that a steam heating area and a spraying area correspond to the width of a paperboard, the steam heating efficiency is improved, meanwhile, the diameter of the paperboard after being preheated and laminated is smoothed, the bottom of the smoothing roller is in contact with the upper end face of the paperboard to roll, and the smoothing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated cardboard processing, in particular to a preheating mechanism for laminating corrugated cardboard. Background Art

[0002] Corrugated cardboard is a sheet material consisting of a corrugated core layer and a cover layer formed between two or more layers of cardboard. Preheating the surface of the corrugated cardboard provides energy for cardboard forming and glue gelatinization, improving the firmness of the cardboard bonding, thereby increasing the cardboard's compressive resistance and service life.

[0003] After searching, the application number CN202322029074.5 discloses a preheating corrugated roller, including a rotatable roller, a transmission rod sleeved in the roller and rotating coaxially with the roller, a pipe 1 for inputting steam into the roller, and a pipe 2 for discharging steam. The transmission rod sliding sleeve is provided with two sliding parts fixedly connected to pipe 1 and pipe 2 respectively. The periphery of the sliding part slides in contact with the inner wall of the roller. The sliding part is fixedly connected to a driving element for adjustment. The sliding part rotates synchronously with the roller, which can change the preheating area of ​​the roller, thereby improving the preheating efficiency of the corrugated roller.

[0004] The existing preheating equipment has a fixed heating width, and simply moving the heating area cannot meet the requirements of preheating cardboards of different widths. At the same time, cardboards are prone to curling due to heat and pressure during preheating and laminating, affecting the quality of the finished cardboard. Utility Model Content

[0005] The purpose of the utility model is to provide a preheating mechanism for laminating corrugated cardboard to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides a preheating mechanism for laminating corrugated cardboard, comprising a support seat, a laminating preheating mechanism installed inside the support seat, a smoothing mechanism slidably connected to the inner wall of the support seat, and the laminating preheating mechanism drives the smoothing mechanism to reciprocate along the moving direction of the cardboard while preheating the cardboard. The support seat comprises a bottom plate, two groups of support plates are fixedly connected on both sides of the bottom plate, and two groups of slide grooves are symmetrically provided on adjacent sides of the two groups of support plates. The laminating preheating mechanism comprises a motor, a laminating preheating component is fixedly connected to the output end of the motor, and a regulating component is slidably connected inside the laminating preheating component. The regulating component comprises two groups of limiting rings, and the adjacent sides of the limiting rings are fixedly connected to the driving racks. The two groups of driving racks are meshed with a gear column together, and an adjusting rod is fixedly connected to the top of the gear column. The adjusting rod extends to the outside of the laminating preheating component away from the gear column.

[0007] As a further preference, the bonding preheating component includes a drive shaft, an insulating sleeve is fixedly connected to the outer wall of the drive shaft, an air inlet is opened in the middle of the outer wall of the insulating sleeve, a preheating roller is fixedly connected to the outer wall of the insulating sleeve, an adjustment groove is opened at the adjacent position of the preheating roller and the insulating sleeve, and a plurality of groups of air outlets are spaced apart inside the preheating roller, and the air outlets are connected to the adjustment groove.

[0008] As a further preference, the regulating assembly also includes two groups of slip rings, which are slidably connected in the regulating groove, and several groups of first connecting rods are fixedly connected to the outer wall of the slip ring at intervals, and the first connecting rods pass through the air outlet and are fixedly connected to the inner wall of the limit ring.

[0009] As a further preference, a mounting groove is opened in the middle of the outer wall of the preheating roller, a mounting hole is opened at the bottom of the mounting groove, the mounting hole is connected to the adjustment groove, and the end of the adjustment rod away from the gear column passes through the mounting hole and extends into the mounting groove.

[0010] As a further preference, the smoothing mechanism includes two groups of sliders, the front end faces of the sliders are fixedly connected to push plates, the front end faces of the push plates are fixedly connected to elastic components, the end of the elastic component facing away from the push plate is fixedly connected to the inner wall of the slide groove, the end of the slider facing away from the push plate is fixedly connected to a second connecting rod, the two groups of second connecting rods are commonly fixedly connected to a mounting frame, and a number of groups of smoothing rollers are connected to the inner wall of the mounting frame to rotate at intervals, and the bottom of the smoothing rollers contacts the upper end face of the cardboard and is arranged perpendicular to the moving direction of the cardboard.

[0011] As a further preference, the outer walls at both ends of the driving shaft are fixedly connected with driving rods, and the driving rods intermittently push the push plate to stretch the elastic component to move away from the laminating preheating mechanism.

[0012] Through the above technical solution, the preheating mechanism for laminating corrugated cardboard provided by the utility model has the following benefits:

[0013] 1. The utility model is provided with a laminating preheating mechanism, and the adjusting rod is rotated to drive the gear column to mesh with the two sets of driving racks to move, so that the two sets of slip rings are close to or away from each other until the distance between the two sets of limit rings is equal to the width of the cardboard. The steam is introduced into the adjusting groove through the air inlet through the external steam pipe. Due to the restriction of the two sets of slip rings in the adjusting groove, the steam always flows within the inner width of the two sets of slip rings. The steam in the adjusting groove is ejected through the air outlet to heat and humidify the cardboard. The first connecting rod in the air outlet limits the width of the steam ejection area, so that the steam heating area and the ejection area correspond to the width of the cardboard, thereby improving the efficiency of steam heating. The motor drives the drive shaft to rotate and drives the preheating roller to rotate. The outer wall of the preheating roller rolls and laminates the heated and humidified cardboard. At the same time, the limit ring extending from the outer wall of the preheating roller guides the moving cardboard to prevent the cardboard from deflecting during rolling and laminating.

[0014] 2. The utility model sets a smoothing mechanism motor to drive the driving shaft to rotate, and the driving rods at both ends of the driving shaft follow the driving shaft to make circular motion. When the outer end of the driving rod moves to the front end surface of the push plate, the push plate stretches the elastic component to move away from the driving shaft. When the outer end of the driving rod is away from the front end surface of the push plate, the stretched elastic component pulls the push plate to reset, and the driving rod rotates periodically, causing the push plate to reciprocate along the moving direction of the cardboard. When the push plate moves, the second connecting rod is driven by the slider to make the mounting frame follow the reciprocating movement. The smoothing roller on the inner wall of the mounting frame moves with the mounting frame to smooth the diameter of the preheated and laminated cardboard. The bottom of the smoothing roller contacts the upper end surface of the cardboard and rolls, thereby improving the smoothing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the preheating mechanism for laminating corrugated cardboard of the present invention.

[0016] Figure 2 This is a schematic diagram of the support seat structure of the utility model

[0017] Figure 3 This is a schematic structural diagram of the smoothing mechanism of the present utility model.

[0018] Figure 4 This is a structural diagram of the laminating and preheating mechanism of the present utility model.

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the laminating and preheating component of the present invention.

[0020] Figure 6 This is a schematic diagram of the structure of the control component of the utility model.

[0021] In the figure: 1 support seat, 11 bottom plate, 12 support plate, 13 slide groove, 2 laminating preheating mechanism, 21 motor, 22 laminating preheating component, 221 drive shaft, 222 drive rod, 223 preheating roller, 224 mounting groove, 225 mounting hole, 226 air inlet, 227 heat insulation sleeve, 228 adjustment groove, 229 air outlet, 23 regulating component, 231 slip ring, 232 limit ring, 233 drive rack, 234 first connecting rod, 235 gear column, 236 adjusting rod, 3 smoothing mechanism, 31 push plate, 32 elastic component, 33 slider, 34 second connecting rod, 35 mounting frame, 36 smoothing roller. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The present invention will be further described in detail with reference to the accompanying drawings.

[0024] See also Figure 1 - Figure 6 The preheating mechanism for laminating corrugated cardboard provided by the utility model includes a support seat 1, a laminating preheating mechanism 2 and a smoothing mechanism 3.

[0025] Among them, see Figure 1 - Figure 4 The cam 33 is fixedly provided with two guide rails 34 on the upper surface of the support plate 31, and a guide rail 33 is fixedly provided with two guide rails 34 on the upper surface of the support plate 31. The guide rail 33 is fixedly provided with a guide rail 34 on the upper surface of the support plate 31.

[0026] It should be noted that the width of the slider 33 is greater than the depth of the slide groove 13, the top of the second connecting rod 34 is fixedly connected to the lower end surface of the part of the slider 33 extending out of the slide groove 13, the width of the push plate 31 is not less than the width of the slider 33, and a part of the push plate 31 extends out of the slide groove 13.

[0027] It should also be noted that a partial gap is left between the bottom of the mounting frame 35 and the upper end surface of the bottom plate 11 , through which the cardboard passes, and the smoothing roller 36 is in rolling connection with the upper end surface of the cardboard.

[0028] For details, please refer to 5 and Figure 6In order to achieve adjustable heating width of the laminating preheating component 22, the laminating preheating component 22 includes a driving shaft 221, one end of the driving shaft 221 is fixedly connected to the output end of the motor 21, and the other end of the driving shaft 221 is rotatably connected to the inner wall of the support plate 12. The outer wall of the driving shaft 221 is fixedly connected to a heat insulating sleeve 227, and a steam channel is provided inside the heat insulating sleeve 227. An air inlet 226 is provided in the middle of the outer wall of the heat insulating sleeve 227, and a preheating roller 223 is fixedly connected to the outer wall of the heat insulating sleeve 227. An adjusting groove 228 is provided in the adjacent area of ​​the preheating roller 223 and the heat insulating sleeve 227. The heating steam is discharged into the adjusting groove 228 through the air inlet 226 through the steam channel. A plurality of groups of air outlets 229 are spaced apart on the outer wall of the preheating roller 223. The port 229 is connected to the adjustment groove 228, and the steam in the adjustment groove 228 is ejected through the air outlet 229 to heat and humidify the cardboard. The regulating component 23 includes an adjusting rod 236 and two groups of slip rings 231. The slip ring 231 is slidably connected in the adjustment groove 228. Several groups of first connecting rods 234 are fixedly connected to the outer wall of the slip ring 231 at intervals. The first connecting rods 234 pass through the air outlet 229 and are fixedly connected to the limit ring 232. The two groups of slip rings 231 are controlled by the adjusting rod 236 to move closer or farther from each other, thereby adjusting the heating width and the steam ejection width. A mounting groove 224 is provided on the outer wall of the preheating roller 223, and a mounting hole 225 is provided at the bottom of the mounting groove 224. The mounting hole 225 is connected to the adjustment groove 228.

[0029] It should be noted that the inner and outer diameters of the slip ring 231 are equal to the inner and outer diameters of the adjustment groove 228. When the two groups of slip rings 231 move in the adjustment groove 228, the two groups of slip rings 231 and the adjustment grooves 228 in the adjacent areas form a closed area A. Steam enters A from the air inlet 226, and the adjustment of the heating area is achieved by controlling the distance between the two groups of slip rings 231.

[0030] It should also be noted that the side walls of several groups of first connecting rods 234 are in contact with the inner walls of several groups of air outlets 229 , and the width of the air outlets 229 can be adjusted by controlling the spacing between the several groups of symmetrically distributed first connecting rods 234 .

[0031] Specifically, in order to facilitate the regulation of the distance between the slip ring 231 and the limit ring 232, the adjacent sides of the two groups of slip rings 231 are fixedly connected with a driving rack 233, and the two groups of driving racks 233 are commonly meshed and connected with a gear column 235. The top of the gear column 235 is fixedly connected with an adjusting rod 236, and the adjusting rod 236 is away from the gear column 235. The end of the adjusting rod 236 passes through the mounting hole 225 and extends into the mounting groove 224. By rotating the adjusting rod 236, the gear column 235 is driven to rotate, and the gear column 235 is meshed with the driving rack 233, so that the two groups of slip rings 231 are close to or away from each other, and the limit ring 232 is driven to move synchronously through the slip ring 231 and the first connecting rod 234.

[0032] It should be noted that a knob is fixedly connected to the top of the adjustment rod 236.

[0033] Principle: Rotating the adjusting rod 236 drives the gear column 235 to engage and drive the rack 233 so that the two sets of slip rings 231 move closer to or away from each other. The slip ring 231 drives the limiting ring 232 to move synchronously through the first connecting rod 234 until the distance between the two sets of limiting rings 232 is equal to the width of the corrugated cardboard. The corrugated cardboard is placed in the gap between the preheating roller 223 and the bottom plate 11, and the position of the cardboard is adjusted so that its edge is located in the two sets of limiting rings 232. External heating steam enters the adjusting groove 228 through the air inlet 226 and heats the preheating roller 223 in the adjacent areas of the two sets of slip rings 231. At the same time, part of it is neatly ejected from the air outlet 229. The limiting ring 232 adjusts the steam ejection width to correspond to the width of the cardboard, thereby heating and humidifying the cardboard. The motor 21 works to drive The driving shaft 221 rotates, and the driving shaft 221 drives the preheating roller 223 to rotate, roll-pressing and laminating the heated and humidified cardboard, and transporting the cardboard away from the laminating preheating mechanism 2. When the driving shaft 221 rotates, it drives the driving rod 222 to rotate. When the driving rod 222 rotates to the front end surface of the push plate 31, it pushes the push plate 31 to stretch the elastic component 32 to move in the direction of cardboard movement. When the driving rod 222 rotates away from the push plate 31, the stretched elastic component 32 pulls the push plate 31 to reset. The driving rod 222 rotates cyclically to make the push plate 31 reciprocate. When the push plate 31 moves, the mounting frame 35 is driven to reciprocate through the slider 33 and the second connecting rod 34 to smooth the laminated cardboard and reduce cardboard curling. At the same time, the lower end of the smoothing roller 36 rolls in contact with the upper end surface of the cardboard to improve the smoothing effect.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A preheating mechanism for laminating corrugated cardboard, comprising a support seat (1), characterized in that: The support seat (1) is internally provided with a laminating preheating mechanism (2), and the inner wall of the support seat (1) is slidably connected to a smoothing mechanism (3). The laminating preheating mechanism (2) preheats the paperboard and drives the smoothing mechanism (3) to move back and forth along the moving direction of the paperboard. The support seat (1) comprises a bottom plate (11), two groups of support plates (12) are fixedly connected on both sides of the bottom plate (11), and two groups of slide grooves (13) are symmetrically provided on adjacent sides of the two groups of support plates (12). The laminating preheating mechanism (2) comprises a motor (21), and the output end of the motor (21) A laminating preheating component (22) is fixedly connected, and a regulating component (23) is slidably connected inside the laminating preheating component (22). The regulating component (23) includes two groups of limiting rings (232), and adjacent sides of the limiting rings (232) are fixedly connected to driving racks (233). The two groups of driving racks (233) are meshed and connected to a gear column (235). The top of the gear column (235) is fixedly connected to an regulating rod (236), and the regulating rod (236) extends to the outside of the laminating preheating component (22) at one end away from the gear column (235).

2. The preheating mechanism for laminating corrugated cardboard according to claim 1, characterized in that: The laminating preheating assembly (22) comprises a driving shaft (221), an outer wall of the driving shaft (221) is fixedly connected to a heat insulating sleeve (227), an air inlet (226) is provided in the middle of the outer wall of the heat insulating sleeve (227), a preheating roller (223) is fixedly connected to the outer wall of the heat insulating sleeve (227), an adjustment groove (228) is provided at a position adjacent to the preheating roller (223) and the heat insulating sleeve (227), and a plurality of groups of air outlets (229) are spaced apart inside the preheating roller (223), and the air outlets (229) are communicated with the adjustment grooves (228).

3. The preheating mechanism for laminating corrugated cardboard according to claim 2, characterized in that: The regulating assembly (23) further comprises two groups of slip rings (231), wherein the slip rings (231) are slidably connected in the regulating groove (228), and the outer wall of the slip ring (231) is fixedly connected with a plurality of groups of first connecting rods (234) at intervals, and the first connecting rods (234) pass through the air outlet (229) and are fixedly connected to the inner wall of the limiting ring (232).

4. The preheating mechanism for laminating corrugated cardboard according to claim 2, characterized in that: A mounting groove (224) is provided in the middle of the outer wall of the preheating roller (223), a mounting hole (225) is provided at the bottom of the mounting groove (224), the mounting hole (225) is communicated with the adjustment groove (228), and the end of the adjustment rod (236) facing away from the gear column (235) passes through the mounting hole (225) and extends into the mounting groove (224).

5. The preheating mechanism for laminating corrugated cardboard according to claim 2, characterized in that: The smoothing mechanism (3) includes two groups of sliders (33), the front end surfaces of the sliders (33) are fixedly connected to push plates (31), the front end surfaces of the push plates (31) are fixedly connected to elastic components (32), one end of the elastic components (32) facing away from the push plates (31) is fixedly connected to the inner wall of the slide groove (13), the end of the slider (33) facing away from the push plates (31) is fixedly connected to a second connecting rod (34), the two groups of second connecting rods (34) are fixedly connected to a mounting frame (35), the inner wall of the mounting frame (35) is rotatably connected to a plurality of groups of smoothing rollers (36), the bottoms of the smoothing rollers (36) are in contact with the upper end surface of the cardboard and are arranged perpendicular to the moving direction of the cardboard.

6. The preheating mechanism for laminating corrugated cardboard according to claim 5, characterized in that: The outer walls at both ends of the drive shaft (221) are fixedly connected to drive rods (222), and the drive rods (222) intermittently push the push plate (31) to stretch the elastic component (32) to move in a direction away from the laminating preheating mechanism (2).

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