Corrugated cardboard forming apparatus

Abstract

A corrugated cardboard forming apparatus, comprising a paper feeding part (3), a forming part (4), a shaping part (5), an adhesive application part (6), a base paper part (7), a preheating part (8), a press-fitting part (9) and a cutting part (92), wherein a plurality of corrugated paperboards (P) are stacked in the paper feeding part so as to be outputted piece by piece; and the forming part receives the corrugated paperboards, and the forming part comprises a forming conveyor belt (41) and a forming wheel (42). The corrugated paperboards are roll-pressed into a wavy shape by means of the forming part and are shaped by means of the shaping part, and then the adhesive application part applies an adhesive thereon. A piece of base paper (74) outputted from the base paper part is preheated by the preheating part; the preheated base paper and the corrugated paperboards are press-fitted together in a wavy shape by the press-fitting part and are dried to form a flat corrugated cardboard; and the base paper above and between two corrugated cardboards is then cut by the cutting part. The production of the corrugated cardboard is completed in a horizontal direction, reducing deformation of the corrugated cardboard during production.

Description

Corrugated paper forming apparatus TECHNICAL FIELD

[0001] The present invention provides a forming apparatus, in particular, a horizontal corrugated paper forming apparatus. BACKGROUND

[0002] Referring to FIG. 1A and FIG. 1B, the applicant's previous application of Taiwan patent TW I537185 paperboard forming device 1, disclosed a plurality of corrugated flat plates 11 are transported to a forming part 12 through a paper feeding part 10, ready to be pressed and bent to form the corrugated flat plate 11, then a rubber roller 131 is used to coat the raw paper 14 with glue, then the raw paper 14 is guided to the adjacent pressing wheel 121 of the rubber coating unit 13, and the corrugated flat plate 11 is pressed and bent to form a corrugated paper 16 with a slight arc shape, as shown in FIG. 2, and the paperboard forming device 1 still has room for improvement in the manufacturing process.

[0003] SUMMARY

[0004] The main purpose of the present invention is to complete the production of corrugated paper in a horizontal direction, and to reduce the deformation of corrugated paper during production.

[0005] To achieve the above purpose, the present invention provides a corrugated paper forming apparatus, which comprises: a paper feeding part for stacking a plurality of corrugated flat plates and outputting the corrugated flat plates one by one; a forming part connected to the paper feeding part to receive the corrugated flat plates, the forming part including a forming conveyor belt and a forming wheel above the front end of the forming conveyor belt, the forming conveyor belt being provided with a plurality of first forming teeth, and the forming wheel being provided with a plurality of second forming teeth corresponding to each first forming tooth and meshing with each other to form a gap for rolling the corrugated flat plates to form a wave shape; a setting part connected to the forming part to position the corrugated flat plates in a wave shape; a rubber coating part connected above the setting part; a raw paper part provided on one side of the paper feeding part and outputting a raw paper through a plurality of rollers; a preheating part connected to the setting part and the rubber coating part to preheat the raw paper; a pressing part connected to the preheating part, the pressing part having a conveyor belt type pressing wheel to receive the preheated raw paper and the corrugated flat plates in a wave shape and press and dry them to form flat corrugated paper; and a cutting part connected to the pressing part to cut the raw paper between the two corrugated papers, thereby completing the production of corrugated paper in a horizontal direction and reducing the deformation of the corrugated paper during production.

[0006] Further, the forming conveyor further comprises a plurality of transmission wheels for driving each of the first forming teeth, each of the transmission wheels having a gear at each end thereof, one of the transmission wheels having a transmission set engaged with the gear at one end thereof, two chains, each of the chains including a plurality of connecting portions, each of the chains being engaged with the gears at each end of each of the transmission wheels, and a plurality of connecting rods, each of the connecting rods being pivotally connected to each of the chains, wherein each of the first forming teeth is pivotally connected to each of the chains and driven by each of the chains, each of the first forming teeth including a forming tooth for conveying each of the corrugated plates, a conveying bottom surface opposite to each end of the forming tooth, and two fixed sets at each end of each of the first forming teeth and pivotally connected to each of the chains, each of the fixed sets including a plate, a protrusion connected to an upper portion of each of the plates, and a first engaging piece and a second engaging piece at each end of each of the protrusions, each of the protrusions, each of the first engaging pieces, and each of the second engaging pieces being pivotally connected to each of the chains, each of the first forming teeth being greater than each of the conveying bottom surfaces through each of the forming teeth, and each of the first forming teeth being able to keep horizontal movement with each of the chains, so that each of the conveying bottom surfaces does not interfere with each other when each of the first forming teeth moves to the curved portion of each of the transmission wheels, and each of the first forming teeth is arranged with a small gap between each of the first forming teeth and is engaged with each of the second forming teeth of the forming wheel to be pressed, so that the corrugated plates are formed into a wave shape and are flattened.

[0007] Further, each of the second forming teeth of the forming wheel is formed with a continuous upper top surface, a right inclined surface connected to one end of each of the upper top surfaces, a lower top surface connected to one end of each of the right inclined surfaces and parallel to each of the upper top surfaces, and a left inclined surface connected to the other end of each of the upper top surfaces and corresponding to each of the right inclined surfaces, wherein each of the forming teeth of each of the first forming teeth is formed with a continuous lower top segment opposite to each of the upper top surfaces, a right abdominal segment connected to one end of each of the lower top segments and opposite to each of the right inclined surfaces, an upper top segment connected to one end of each of the right abdominal segments and opposite to each of the lower top surfaces, and a left abdominal segment connected to the other end of each of the lower top segments and opposite to each of the left inclined surfaces, for the corrugated plates to be formed into a wave shape.

[0008] Further, each of the forming belts of each of the first forming teeth is formed with a lower top section continuously opposite to each of the upper top surfaces, a right abdominal section connecting one end of each of the lower top sections and opposite to each of the right oblique abdominal surfaces, an upper top section connecting one end of each of the right abdominal sections and opposite to each of the upper top surfaces, and a left abdominal section connecting the other end of each of the lower top sections and opposite to each of the left oblique abdominal surfaces, one end of each of the lower top sections is inwardly inclined toward each of the two ends of the conveying bottom surface and connected with each of the two ends of the conveying bottom surface, respectively, for the corrugated flat plate to be formed in a wave shape.

[0009] Further, each of the connecting portions has an inner connecting section and an outer connecting section pivotally connected to one end of each of the inner connecting sections, each of the inner connecting sections includes two axle rods having a first axle hole, and an engaging space between the two axle rods and engaged with each of the gears at the two ends of each of the transmission wheels to drive each of the inner connecting sections to drive each of the chains to operate, each of the outer connecting sections has two second axle holes corresponding to one of the first axle holes of each of the inner connecting sections and pivotally connected to each of the connecting rods, respectively.

[0010] Further, the forming wheel is a conveying belt type, a plurality of second forming teeth are provided corresponding to each of the first forming teeth to be engaged with each other and form the gap for rolling the corrugated flat plate to be formed in a wave shape.

[0011] Further, the shaping portion includes an upper mold rod and a plurality of pressing rods spaced apart and connected to one side of the upper mold rod in the direction of the forming conveying belt, the plurality of pressing rods guide the corrugated flat plate after being pressed to be conveyed in a wave shape to be flat.

[0012] Further, the upper gluing portion has a plurality of nozzles toward the bottom surface of the shaping portion, the plurality of nozzles are spaced apart or provided in a single group; wherein the raw paper portion includes a raw paper frame and a raw paper roll provided on the raw paper frame, each of the rollers of the raw paper portion is provided on one side of the raw paper roll and distributed above the paper feeding portion and the forming portion.

[0013] Further, the preheating portion includes an inlet wheel, a preheating wheel located below the inlet wheel and rotating in a direction different from the inlet wheel, and a plasticizing wheel located below the preheating wheel and rotating in a direction different from the preheating wheel, the plasticizing wheel and the inlet wheel rotate in the same direction.

[0014] Further, the inlet wheel, the preheating wheel and the plasticizing wheel are spaced apart in an up-down direction, the temperature of the preheating wheel is ±150°C.

[0015] According to the foregoing disclosure of the present application, compared with the prior art, the present application has the following characteristics:

[0016] The present application is to roll and press the corrugated flat plate into a wave shape through the forming section, to shape through the shaping section and to coat glue through the glue coating section, to output the raw paper of the raw paper section to the preheating section through the plurality of rollers to preheat, and to press and dry the preheated raw paper and the corrugated flat plate into a wave shape through the pressing section, to cut the raw paper above the two corrugated papers through the cutting section, and to complete the production of the corrugated paper in the horizontal direction, thereby reducing the deformation of the corrugated paper in the production process. BRIEF DESCRIPTION OF DRAWINGS

[0017] FIG. 1A is a schematic diagram of a corrugated flat plate forming operation of a paperboard forming device of Taiwan Patent TW I537185;

[0018] FIG. 1B is an enlarged schematic view of part A of FIG. 1A;

[0019] FIG. 2 is a schematic diagram of a corrugated paper in an arc structure of FIG. 1B;

[0020] FIG. 3A is a schematic diagram of a corrugated paper forming device configuration and a corrugated flat plate forming operation of the present application;

[0021] FIG. 3B is an enlarged schematic view of part B of FIG. 3A;

[0022] FIG. 3C is an enlarged schematic view of part C of FIG. 3A;

[0023] FIG. 4 is a rear view of a corrugated paper forming device configuration of the present application;

[0024] FIG. 5 is a schematic diagram of a forming section, a shaping section, and a glue coating section configuration of the present application;

[0025] FIG. 6 is a schematic diagram of a forming conveyor belt of the forming section of FIG. 5;

[0026] FIG. 7 is a combined schematic diagram of the forming conveyor belt of FIG. 6;

[0027] FIG. 8 is a top view of the forming section, the shaping section, and the glue coating section configuration of FIG. 5;

[0028] FIG. 9 is a front view of the forming section, the shaping section, and the glue coating section configuration of FIG. 5;

[0029] FIG. 10 is a schematic diagram of another embodiment of a first forming tooth of the forming conveyor belt of FIG. 5;

[0030] FIG. 11 is a schematic diagram of an operation of the forming conveyor belt and the forming wheel of FIG. 10;

[0031] FIG. 12 is a schematic diagram of another embodiment of the forming wheel and a corrugated flat plate forming operation of FIG. 5;

[0032] FIG. 13 is a schematic diagram of another embodiment of the conveyor belt and the first forming tooth and a corrugated flat plate forming operation of FIG. 5.

[0033] SYMBOL DESCRIPTION

[0034] PRIOR ART

[0035] 1: paperboard forming device

[0036] 10: paper feeding section

[0037] 11: corrugated flat plate

[0038] 12: forming section

[0039] 121: press wheel

[0040] 13: gluing unit

[0041] 131: roller

[0042] 14: raw paper

[0043] 15: guide wheel

[0044] 16: corrugated paper

[0045] THE INVENTION

[0046] 2: corrugated paper forming device

[0047] 3: paper feeding section

[0048] 4: forming section

[0049] 41: forming conveyor belt

[0050] 411, 411a: first forming tooth

[0051] 4110, 4110a: forming belt tooth

[0052] 4111: lower top section

[0053] 4112: right abdominal section

[0054] 4113: upper top section

[0055] 4114: left abdominal section

[0056] 412: transmission wheel

[0057] 4121: gear

[0058] 413: transmission set

[0059] 414: chain

[0060] 4141: connecting section

[0061] 4142: inner tangent section

[0062] 4143: outer tangent section

[0063] 4144: first shaft hole

[0064] 4145: wheel lever

[0065] 4146: engagement space

[0066] 4147: second shaft hole

[0067] 415: connecting rod

[0068] 416, 416a: conveying bottom surface

[0069] 417: fixing group

[0070] 4171: plate body

[0071] 4172: protrusion

[0072] 4173: first engaging piece

[0073] 4174: second engaging piece

[0074] 42: forming wheel

[0075] 421: second forming tooth

[0076] 4211: upper top surface

[0077] 4212: right inclined flank

[0078] 4213: lower top surface

[0079] 4214: left inclined flank

[0080] 43, 43a, 43b: gap

[0081] 5: sizing portion

[0082] 51: upper die rod

[0083] 52: pressing rod

[0084] 6: gumming portion

[0085] 61: nozzle

[0086] 7: base paper portion

[0087] 71: base paper frame

[0088] 72: base paper roll

[0089] 73: roller

[0090] 74: base paper

[0091] 8: preheating portion

[0092] 81: lead-in wheel

[0093] 82: preheating wheel

[0094] 83: plasticizing wheel

[0095] 9: pressing part

[0096] 91: conveyor belt type pressing wheel

[0097] 92: cutting part

[0098] P: corrugated flat

[0099] P1: corrugated paper

[0100] 4111a: lower top section

[0101] 4112a: right abdominal section

[0102] 4113a: upper top section

[0103] 4114a: left abdominal section

[0104] 42b: conveyor belt type

[0105] 421b: second forming tooth DETAILED DESCRIPTION

[0106] The detailed description and technical content of the present application are described as follows in conjunction with the accompanying drawings:

[0107] Please refer to FIG. 3A to FIG. 5 and in conjunction with FIG. 8 and FIG. 9, the present application is a corrugated paper forming device 2, which comprises a paper feeding part 3, a forming part 4, a setting part 5, a gumming part 6, a raw paper part 7, a preheating part 8, a pressing part 9 and a cutting part 92.

[0108] The paper feeding part 3 stacks a plurality of corrugated flats P for outputting the corrugated flats P one by one. The paper feeding part 3 is a paper feeding machine for outputting the corrugated flats P one by one. The corrugated flat P is a base material of a yet-to-be-formed double-structured paperboard.

[0109] Please refer to FIG. 3A to FIG. 5 and in conjunction with FIG. 6 and FIG. 7, the forming part 4 is sequentially arranged at the paper feeding part 3 to receive the corrugated flat P and perform forming action of pressing the corrugated flat P inputted from the paper feeding part 3 into the forming part 4. The forming part 4 comprises a forming conveyor belt 41 and a forming wheel 42 arranged above the front end of the forming conveyor belt 41. The forming conveyor belt 41 is provided with a plurality of first forming teeth 411. The forming wheel 42 is provided with a plurality of second forming teeth 421 corresponding to each of the first forming teeth 411 to intermesh with each other and form a gap 43 for rolling the corrugated flat P, so that the corrugated flat P is rolled into a wave shape in the gap 43.

[0110] Referring to FIGS. 3A-5 and FIGS. 6-9, in the present embodiment, the forming conveyor belt 41 further comprises a plurality of transmission wheels 412 for driving each of the first forming teeth 411, each of the transmission wheels 412 having a gear 4121 at each end thereof, one of the transmission wheels 412 having a transmission set 413 engaged with one end thereof, a plurality of chains 414, each of the chains 414 including a plurality of connecting portions 4141, each of the chains 414 being engaged with the gears 4121 at each end of each of the transmission wheels 412, each of the chains 414 being driven to rotate by the transmission set 413 to drive each of the first forming teeth 411 to rotate, and a plurality of connecting rods 415, each of the connecting rods 415 being pivotally connected to each of the chains 414.

[0111] Referring to FIGS. 3A, 6 and 7, each of the first forming teeth 411 is pivotally connected to each of the chains 414 to drive each of the first forming teeth 411 to rotate. Each of the first forming teeth 411 includes a forming tooth 4110 for conveying the corrugated flat plate P, a conveying bottom surface 416 opposite to each end of the forming tooth 4110, and two fixing sets 417 at each end of each of the first forming teeth 411 and pivotally connected to each of the chains 414. Each of the fixing sets 417 includes a plate body 4171, a protrusion 4172 connected to an upper portion of each of the plate bodies 4171, and a first engaging piece 4173 and a second engaging piece 4174 at each end of each of the protrusions 4172. Each of the plate bodies 4171 is fixed to the conveying bottom surface 416 and the bottom portion of each of the protrusions 4172 by screwing or fitting. Each of the protrusions 4172, each of the first engaging pieces 4173 and each of the second engaging pieces 4174 is pivotally connected to each of the chains 414. Each of the first forming teeth 411 is larger than each of the conveying bottom surfaces 416 by each of the forming teeth 4110, and each of the first forming teeth 411 is horizontally arranged and driven to the curved portion of each of the transmission wheels 412 without interference between each of the conveying bottom surfaces 416, so that the distance between each of the first forming teeth 411 is small and each of the first forming teeth 411 is engaged with each of the second forming teeth 421 of the forming wheel 42 to be pressed, thereby obtaining a flat corrugated flat plate P.

[0112] Referring to FIG. 3A, FIG. 3B and FIG. 6, each of the second forming teeth 421 of the forming wheel 42 is provided with a continuous upper top surface 4211, a right inclined flank surface 4212 connected to one end of each of the upper top surfaces 4211, a lower top surface 4213 connected to one end of each of the right inclined flank surfaces 4212 and parallel to each of the upper top surfaces 4211, and a left inclined flank surface 4214 connected to the other end of each of the upper top surfaces 4211 and corresponding to each of the right inclined flank surfaces 4212. Each of the forming strips 4110 of each of the first forming teeth 411 is formed with a lower top segment 4111 opposite to each of the upper top surfaces 4211, a right flank segment 4112 connected to one end of each of the lower top segments 4111 and opposite to each of the right inclined flank surfaces 4212, an upper top segment 4113 connected to one end of each of the right flank segments 4112 and opposite to each of the lower top surfaces 4213, and a left flank segment 4114 connected to the other end of each of the lower top segments 4111 and opposite to each of the left inclined flank surfaces 4214, for the corrugated plate P to be formed in a wave shape.

[0113] Referring to FIG. 5 to FIG. 7, each of the connecting portions 4141 is provided with an inner connecting segment 4142 and an outer connecting segment 4143 pivoted to one end of each of the inner connecting segments 4142. Each of the inner connecting segments 4142 includes two wheel rods 4145 provided with a first shaft hole 4144, and an engagement space 4146 between the two wheel rods 4145 and engaged with each of the gear wheels 4121 at both ends of each of the transmission wheels 412 to form transmission, so that each of the inner connecting segments 4142 drives each of the chains 414 to operate. Each of the outer connecting segments 4143 is provided with two second shaft holes 4147, which correspond to one of the first shaft holes 4144 of each of the inner connecting segments 4142 and are respectively pivoted to each of the connecting rods 415.

[0114] Referring to FIG. 3A, FIG. 8 and FIG. 9, the shaping portion 5 is sequentially provided on the forming portion 4 to position the corrugated plate P in a wave shape. In an embodiment, the shaping portion 5 includes an upper die rod 51 and a plurality of pressing rods 52 connected to one side of the upper die rod 51 in the direction of the forming conveyor belt 41. The plurality of pressing rods 52 can press the corrugated plate P in a wave shape after being pressed and formed to be flat before being bent, so that the corrugated plate P after being formed in a wave shape does not produce a curved shape.

[0115] The upper gluing portion 6 is sequentially provided above the shaping portion 5. In an embodiment, the upper gluing portion 6 has a plurality of nozzles 61 for gluing above the corrugated plate P in a wave shape after being pressed and formed. The plurality of nozzles 61 are arranged at intervals or arranged in a single group.

[0116] The raw paper section 7 is disposed on one side of the paper feeding section 3. In one embodiment, the raw paper section 7 includes a raw paper frame 71, a raw paper roll 72 disposed on the raw paper frame 71, and a plurality of rollers 73 disposed on one side of the raw paper roll 72 and distributed above the paper feeding section 3 and the forming section 4. The raw paper section 7 mainly outputs the raw paper 74 to the preheating section 8 through the plurality of rollers 73.

[0117] The preheating section 8 is sequentially disposed between the setting section 5 and the gluing section 6 to preheat the raw paper 74. The preheating section 8 includes an inlet wheel 81, a preheating wheel 82 located below the inlet wheel 81 and rotating in a direction different from that of the inlet wheel 81, and a plasticizing wheel 83 located below the preheating wheel 82 and rotating in a direction different from that of the preheating wheel 82, the plasticizing wheel 83 rotating in the same direction as the inlet wheel 81. In one embodiment, the inlet wheel 81, the preheating wheel 82, and the plasticizing wheel 83 are arranged in an up-down interval. The temperature of the preheating wheel 82 is ±150°C. The preheating section 8 mainly eliminates the moisture of the raw paper 74 of the raw paper section 7, and hardens and bonds the glue adhered to the corrugated flat plate P in a wavy shape, so that the corrugated flat plate P in a wavy shape has better covering effect on the raw paper 74.

[0118] The pressing section 9 is sequentially disposed between the preheating section 8 to receive the corrugated paper P1 formed by pressing and drying the raw paper 74 and the corrugated flat plate P in a wavy shape. The pressing section 9 has a conveyor belt type pressing wheel 91, which allows the corrugated paper P1 and the raw paper 74 to be formed for a longer time during conveying.

[0119] The cutting section 92 is sequentially disposed between the pressing section 9. The cutting section 92 mainly cuts the raw paper 74 above the two corrugated papers P1 to complete the production of the corrugated paper P1 and the raw paper 74 in a flat shape by pressing and adhering in a horizontal direction, thereby reducing the deformation of the corrugated paper P1 during production.

[0120] Referring to FIG. 3A and FIG. 3B to FIG. 9, when the paper feeding part 3 outputs each of the corrugated plates P to the forming part 4, each of the first forming teeth 411 of the forming conveyor belt 41 and each of the second forming teeth 421 of the forming wheel 42 are engaged with each other and form the gap 43 for rolling the corrugated plate P, so that the corrugated plate P is rolled in a wave shape in the gap 43. In order to prevent the corrugated plate P from being affected by the stress of the wave shape of the corrugated plate P that is still outwardly stretched, the corrugated plate P that is wave-shaped after being pressed is conveyed flat by the plurality of pressing rods 52 of the setting part 5. The corrugated plate P that is wave-shaped after being formed is coated with glue by the gluing part 6, and the base paper 74 coated with kraft paper is conveyed by the plurality of rollers 73 on one side of the base paper part 7. The base paper 74 is output to the preheating part 8 to be preheated, and the base paper 74 is conveyed to the corrugated plate P that is wave-shaped after being coated with glue and passes through the pressing part 9. The base paper 74 can be more stably attached to the corrugated plate P that is wave-shaped and is formed for a long time in the conveying gap, so that the base paper 74 that is preheated and the corrugated plate P that is wave-shaped and pressed are dried to be flat corrugated paper P1. The base paper 74 above the two corrugated papers P1 is cut by the cutting part 92, and the production of the corrugated paper P1 is completed in the horizontal direction, so that the deformation of the corrugated paper P1 in the production process is reduced.

[0121] Referring to FIG. 10 and FIG. 11, another embodiment of each of the first forming teeth 411a is substantially the same as the configuration of each of the first forming teeth 411 and each of the second forming teeth 421 disclosed in FIG. 5 and FIG. 6, except that each of the first forming teeth 411a respectively comprises a forming belt tooth 4110a for conveying the corrugated plate P, a conveying bottom surface 416a facing opposite to one end of each of the forming belt tooth 4110a, and two fixed groups 417 respectively located at both ends of each of the first forming teeth 411a and pivotally connected with each of the chain 414, wherein each of the forming belt tooth 4110a of each of the first forming teeth 411a is formed with a lower top segment 4111a continuously facing opposite to each of the upper top abutting surface 4211, a right abdominal segment 4112a connecting one end of each of the lower top segment 4111a and facing opposite to each of the right oblique abdominal surface 4212, an upper top segment 4113a connecting one end of each of the right abdominal segment 4112a and facing opposite to each of the lower top abutting surface 4213, and a left abdominal segment 4114a connecting the other end of each of the lower top segment 4111a and facing opposite to each of the left oblique abdominal surface 4214, one end of each of the lower top segment 4111a respectively inwardly and obliquely connects to both ends of each of the conveying bottom surface 416a for the corrugated plate P to be formed in a wave shape. Each of the plate body 4171 can be fixedly connected with each of the conveying bottom surface 416a and the bottom of each of the protrusion 4172 by screwing or fitting, each of the protrusion 4172, each of the first joint piece 4173 and each of the second joint piece 4174 are pivotally connected with each of the chain 414, each of the first forming teeth 411a is kept horizontally moving by each of the lower top segment 4111a being larger than each of the conveying bottom surface 416a, and all are cooperated with each of the chain 414 to move to the bending arc of each of the transmission wheel 412, so that each of the conveying bottom surface 416a does not interfere with each other, the arrangement gap between each of the lower top segment 4111a of each of the first forming teeth 411a is small, and is engaged and pressed with each of the second forming teeth 421 of the forming wheel 42 to form the gap 43a for rolling the corrugated plate P, so that the corrugated plate P is rolled in a wave shape in the gap 43a to convey the corrugated plate P in a wave shape after forming.

[0122] Referring to FIG. 12, another embodiment of the forming wheel 42 is a conveying belt type 42b, which is substantially the same as the configuration of the forming conveying belt 41 and the forming wheel 42 disclosed in FIG. 5 and FIG. 6, except that the conveying belt type 42b is provided with a plurality of second forming teeth 421b corresponding to each of the first forming teeth 411 to be engaged with each other and form the gap 43b for rolling the corrugated plate P, so that the corrugated plate P is rolled in a wave shape in the gap 43b.

[0123] Referring to FIG. 13, another embodiment of each of the first forming teeth 411 of the conveyor belt 42b is substantially the same as the configuration of the conveyor belt 42b disclosed in FIG. 12 and each of the first forming teeth 411a disclosed in FIGS. 10 and 11, and thus is not described again.

Claims

1. A corrugated paper forming apparatus characterized by, The corrugated paper forming device comprises: a paper feeding unit, which stacks a plurality of corrugated flat plates and outputs the corrugated flat plates one by one; a forming unit, which is sequentially arranged on the paper feeding unit to receive the corrugated flat plates, the forming unit comprises a forming conveyor belt and a forming wheel arranged above the front end of the forming conveyor belt, the forming conveyor belt is provided with a plurality of first forming teeth, the forming wheel is provided with a plurality of second forming teeth corresponding to each first forming tooth and engaged with each other, and forms a gap for rolling the corrugated flat plates to make the corrugated flat plates rolled into a wave shape; a setting unit, which is sequentially arranged on the forming unit to set the corrugated flat plates into a wave shape; a gluing unit, which is sequentially arranged above the setting unit; a raw paper unit, which is arranged on one side of the paper feeding unit and outputs a raw paper through a plurality of rollers; a preheating unit, which is sequentially arranged between the setting unit and the gluing unit to preheat the raw paper; a pressing unit, which is sequentially arranged on the preheating unit, the pressing unit has a conveyor belt type pressing wheel to receive the preheated raw paper and the corrugated flat plates, which are wave-shaped, and press and dry them to be flat corrugated paper; and a cutting unit, which is sequentially arranged on the pressing unit to cut the raw paper above the two corrugated papers, so as to complete the production of the corrugated paper in the horizontal direction and reduce the deformation of the corrugated paper in the production process.

2. The corrugator apparatus of claim 1, wherein, The forming conveyor belt further comprises a plurality of driving wheels for driving each first forming tooth, each driving wheel is provided with a gear at both ends, one end of one driving wheel is engaged with a driving set outside; two chains, each chain comprises a plurality of connecting parts, each chain is engaged with each gear at both ends of each driving wheel, and each chain is driven to rotate and advance by the driving set to drive each first forming tooth to rotate; and a plurality of connecting rods, each connecting rod is pivotally connected with each chain; wherein both ends of each first forming tooth are pivotally connected with each chain and drive each first forming tooth to operate, each first forming tooth comprises a forming tooth for conveying each corrugated flat plate, a conveying bottom surface opposite to one end of each forming tooth, and two fixed sets respectively arranged at both ends of each first forming tooth and pivotally connected with each chain, each fixed set comprises a plate body, a protrusion connected above each plate body, and a first engaging piece and a second engaging piece respectively arranged at both ends of each protrusion, each protrusion, each first engaging piece and each second engaging piece are pivotally connected with each chain, each first forming tooth is larger than each conveying bottom surface through each forming tooth, and each first forming tooth can keep horizontal movement with each chain, so that when each first forming tooth moves to the bending arc of each driving wheel, the conveying bottom surfaces of each first forming tooth do not interfere with each other, the arrangement gap between each first forming tooth is small, and each first forming tooth is engaged and pressed with each second forming tooth of the forming wheel to be flat after being conveyed and formed into a wave shape.

3. The corrugator of claim 2, wherein, Each of the second forming teeth of the forming wheel is formed with a continuous upper top surface, a right inclined surface connected to one end of each of the upper top surfaces, a lower top surface connected to one end of each of the right inclined surfaces and parallel to each of the upper top surfaces, and a left inclined surface connected to the other end of each of the upper top surfaces and corresponding to each of the right inclined surfaces; wherein each of the forming strips of each of the first forming teeth is formed with a continuous lower top section opposite to each of the upper top surfaces, a right abdominal section connected to one end of each of the lower top sections and opposite to each of the right inclined surfaces, an upper top section connected to one end of each of the right abdominal sections and opposite to each of the lower top surfaces, and a left abdominal section connected to the other end of each of the lower top sections and opposite to each of the left inclined surfaces, for the corrugated flat to be formed in a wave shape.

4. The corrugator of claim 3, wherein, Each of the forming strips of each of the first forming teeth is formed with a continuous lower top section opposite to each of the upper top surfaces, a right abdominal section connected to one end of each of the lower top sections and opposite to each of the right inclined surfaces, an upper top section connected to one end of each of the right abdominal sections and opposite to each of the lower top surfaces, and a left abdominal section connected to the other end of each of the lower top sections and opposite to each of the left inclined surfaces, each of the lower top sections being inclined inwardly toward both ends of each of the conveying bottom surfaces and connected to both ends of each of the conveying bottom surfaces, for the corrugated flat to be formed in a wave shape.

5. The corrugator of claim 4 wherein, Each of the connecting portions has an inner connecting section and an outer connecting section pivoted to one end of each of the inner connecting sections, each of the inner connecting sections includes two wheel rods having a first shaft hole, and an engagement space between the two wheel rods and engaged with each of the gears at both ends of each of the transmission wheels to form transmission, so that each of the inner connecting sections drives each of the chains to operate, each of the outer connecting sections has two second shaft holes corresponding to one of the first shaft holes of each of the inner connecting sections and pivoted to each of the connecting rods.

6. The corrugator of claim 1 wherein, The forming wheel is a conveying belt type, a plurality of second forming teeth are provided to be engaged with each other corresponding to each of the first forming teeth, and a gap for rolling the corrugated flat is formed, so that the corrugated flat is rolled in a wave shape in the gap.

7. The corrugator of claim 1 wherein, The shaping portion includes an upper mold rod and a plurality of pressing rods spaced apart from each other and connected to one side of the upper mold rod in the direction of the forming conveying belt, the plurality of pressing rods guide the corrugated flat after being pressed to be conveyed in a wave shape.

8. The corrugator of claim 1 wherein, The upper gluing portion has a plurality of nozzles on the bottom surface of the shaping portion, the plurality of nozzles are spaced apart or provided in a single group; wherein the raw paper portion includes a raw paper frame and a raw paper roll provided on the raw paper frame, each of the rollers of the raw paper portion is provided on one side of the raw paper roll and distributed above the paper feeding portion and the forming portion.

9. The corrugator of claim 1 wherein, The preheating portion includes an inlet wheel, a preheating wheel located below the inlet wheel and rotating in a direction different from the inlet wheel, and a plasticizing wheel located below the preheating wheel and rotating in a direction different from the preheating wheel, the plasticizing wheel and the inlet wheel rotate in the same direction.

10. The corrugator of claim 9, wherein, The inlet wheel, the preheating wheel and the plasticizing wheel are arranged in an upper and lower spaced manner, and the temperature of the preheating wheel is ±150°C.

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