Corrugated paperboard, preparation technology and processing equipment

Abstract

The invention relates to the technical field of preparation of corrugated paperboard, in particular to corrugated paperboard, a preparation process and processing equipment thereof. A support plate is arranged between a bending layer and a lower paperboard, the support plate comprises a pair of parallel and symmetrical longitudinal plates, adjacent longitudinal plates are connected by a plurality of sets of transverse plates, and a pull rod penetrating and connecting the bending layer is installed on the transverse plate. The beneficial effects are as follows: a support plate is added to the existing corrugated paperboard, the support plate is used to enhance the overall vertical support strength of the corrugated paperboard, the vertical bearing strength and compressive resistance of the corrugated paperboard are improved, and at the same time, the dislocation rotation of the pull rod is used to achieve traction and fixation of multiple layers of paper in the corrugated layer, so that the corrugated layer of the multi-layer structure is clamped and fixed, thereby preventing the problem of paper delamination of the corrugated layer after immersion in water, and the processing equipment formed by the pressing of upper and lower molds is used to achieve integrated and rapid molding of the corrugated layer, thereby greatly improving the production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of corrugated paperboard preparation, in particular to corrugated paperboard, a preparation process and processing equipment thereof. Background Art

[0002] Corrugated board, also known as corrugated board, is made of at least one layer of corrugated paper and one layer of boxboard (also called boxboard) and has good elasticity and extensibility.

[0003] Existing patent number: CN86108155 A corrugated paperboard for making paper boxes, composed of two outer tree boards and two corrugated layers bonded to each other with the corrugated tops located between them. Due to the increase in board thickness, the strength is concentrated in the outer lining board, and the inner lining board between the corrugated layers is eliminated, the corner compressive strength and various strengths per unit weight are improved.

[0004] In the prior art, the corrugations in the corrugated paperboard are mostly of type A, type B or type E, and the corrugated layers are mostly formed by stacking multiple layers of paper. The corrugations formed by bending in this way have a high supporting strength, but their connection relies on the bonding with the upper and lower layers of paperboard, and the connection strength is low. Especially after being soaked in water, even if it is dried or air-dried, the paperboard will still have wrinkles and delamination, thereby destroying its overall structure and supporting strength. Even if two layers of corrugated layers are designed as in the above-mentioned existing patent, it can only increase the thickness but cannot improve its connection strength. Summary of the invention

[0005] The object of the present invention is to provide corrugated paperboard, a preparation process and processing equipment thereof, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] Corrugated cardboard, the corrugated cardboard includes an upper cardboard, a lower cardboard and a middle layer, the middle layer is fixedly bonded between the upper cardboard and the lower cardboard, the middle layer includes a bending layer and a support plate, the bending layer is composed of multiple layers of cardboard bent and bonded to each other, a support plate is arranged between the bending layer and the lower cardboard, the support plate includes a pair of parallel and symmetrical longitudinal plates, adjacent longitudinal plates are connected by multiple groups of transverse plates, and pull rods penetrating and connecting the bending layers are installed on the transverse plates.

[0008] Preferably, the upper end of the longitudinal plate is against the bending layer, the other end of the longitudinal plate is fixedly bonded to the lower paperboard, and the longitudinal plate and the transverse plate are fixedly bonded vertically.

[0009] Preferably, the horizontal plate is provided with a vertically penetrating socket, the upper end of the pull rod is provided with an inner hole penetrating the bending layer, the upper end of the bending layer is provided with a long strip of offset thin sheet, the lower end of the offset thin sheet is provided with a protrusion inserted into the inner hole, the lower end outer wall and the protrusion of the pull rod are provided with side blocks, the inner walls of the socket and the inner hole are provided with side grooves corresponding to the side blocks, and the lower end of the pull rod is provided with a rotating end cap.

[0010] A process for preparing corrugated paperboard, the process comprising the following steps:

[0011] Step 1: soak the raw material of the bending layer, then stack multiple raw materials in sequence and place them in the bending lower mold, and spray an adhesive mixed with paper pulp between adjacent raw materials;

[0012] Step 2: Install the support plate of the finished product along the lower mold, with the support plate located between adjacent lower molds;

[0013] Step 3: The upper mold is pressed downward to press the multiple layers of raw materials together, and the pull rod is pressed upward to make the end of the pull rod penetrate the wet bending layer, and the protrusion at the lower end of the dislocated sheet be inserted into the inner hole;

[0014] Step 4: Use the driving assembly to drive the pull rod to rotate, so that the lower end of the pull rod is dislocated and clamped on the horizontal plate, and the upper end of the pull rod is dislocated and connected to the dislocation sheet;

[0015] Step 5: The upper mold is heated to achieve the purpose of drying the bending layer, and demoulding after drying to obtain a finished intermediate layer connecting the bending layer and the support plate, and then the intermediate layer is bonded between the upper paperboard and the lower paperboard.

[0016] The processing equipment of the corrugated cardboard preparation process comprises a processing base, a side frame and a pressing plate, the upper end of the processing base is provided with a plurality of groups of inner frames distributed at intervals, the support plate is installed on the inner frame, the inner frame is provided with a driving component for driving the pull rod to lift and rotate, and adjustment blocks are symmetrically arranged on both sides of the inner frame, the side of the adjustment block close to the support plate is provided with a clamping component for clamping the longitudinal plates on both sides of the support plate, the other side of the adjustment block is connected to the lower mold, and the rear side of the processing base is vertically provided with a side frame, the upper end of the side frame is provided with a telescopic rod, the lower end of the telescopic rod is connected to the pressing plate, the lower end of the pressing plate is provided with an upper mold, the bending layer is laminated between the upper mold and the lower mold, a built-in heating device is provided in the upper mold, and a negative pressure hole is provided at the lower end of the upper mold opposite to the pull rod, and the lower end of the negative pressure hole absorbs the dislocated thin sheet.

[0017] Preferably, the driving assembly includes a push rod, the lower end bearing of the push rod is rotatably mounted on the inner frame, the upper end of the push rod is arranged as a plug cooperating with the rotating end cap, the lower end of the push rod is fixedly sleeved with a driven gear, a telescopic groove is arranged on one side of the inner frame, a tooth plate is slidably inserted in the telescopic groove, and the tooth plate is meshed with the driven gear.

[0018] Preferably, the processing base is symmetrically provided with limit frames on both sides opposite to the tooth plate, and the limit frames are provided with connecting rods passing through the telescopic slots, and the tooth plate is slidably inserted on the connecting rods, and springs are provided at both ends of the tooth plate, and the springs are sleeved on the connecting rods, and the springs are pressed onto the inner wall of the limit frames.

[0019] Preferably, a driving shaft driven by a motor is inserted through the limit frame, and a gear set is arranged in the limit frame, the gear set includes a first bevel gear and a second bevel gear, the first bevel gear is meshed and connected to the gear plate, the other side of the first bevel gear is vertically meshed and connected to the second bevel gear, and the second bevel gear is fixedly sleeved on the driving shaft.

[0020] Preferably, a slide groove is provided at a position corresponding to the upper end of the processing base and the lower mold, an open groove is provided at one end of the slide groove, a slider slidably inserted in the slide groove is provided at the lower end of the lower mold, pneumatic adjustment rods are inserted on both sides of the adjustment block, the clamping assembly includes a clamping plate, an adjustment rod on one side of the adjustment block is connected to the clamping plate, the clamping plate is pressed on the longitudinal plate, and the adjustment rod on the other side of the adjustment block is connected to the lower mold.

[0021] Preferably, an inner flow channel is provided in the inner cavity of the lower mold, a plurality of groups of air holes connected to the inner flow channel are provided on the outer wall of the upper end of the lower mold in a matrix distribution, the bending layer is laminated and sealed on the ports of the air holes, and an air pipe connected to the inner flow channel is provided on the inner side of the lower mold.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention adds a support plate to the existing corrugated board, and utilizes the support plate to enhance the overall vertical support strength of the corrugated board, thereby improving the vertical bearing strength and compression resistance of the corrugated board. At the same time, the offset rotation of the pull rod is utilized to achieve traction and fixation of multiple layers of paper in the corrugated layer, so that the corrugated layer of the multi-layer structure is clamped and fixed, thereby preventing the problem of paper delamination in the corrugated layer after being immersed in water. In conjunction with the processing equipment formed by the upper and lower molds being pressed together, the integrated and rapid molding of the corrugated layer is achieved, thereby greatly improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the corrugated paperboard of the present invention;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the corrugated paperboard of the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the bending layer of the present invention;

[0027] Figure 4 This is a schematic diagram of a structure of a bending layer processed by a processing device of the present invention;

[0028] Figure 5 It is a partial structural schematic diagram of the processing equipment of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of forming the bending layer on the lower mold of the present invention;

[0030] Figure 7 This is a schematic diagram of the three-dimensional structure of the inner frame of the present invention being installed on the processing base;

[0031] Figure 8 for Figure 7 A magnified view of the structure at center;

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of the pull rod of the present invention.

[0033] In the figure: 1. upper cardboard; 2. lower cardboard; 3. support plate; 4. bending layer; 5. transverse plate; 6. longitudinal plate; 7. offset sheet; 8. pull rod; 9. side block; 10. jack; 11. rotating end cap; 12. processing base; 13. pressing plate; 14. upper mold; 15. negative pressure hole; 16. lower mold; 17. air pipe; 18. inner flow channel; 19. air hole; 20. adjusting block; 21. clamping plate; 22. adjusting rod; 23. slide groove; 24. slider; 25. opening groove; 26. driven gear; 27. ejector rod; 28. inner frame; 29. ​​tooth plate; 30. telescopic groove; 31. side frame; 32. telescopic rod; 33. limit frame; 34. driving shaft; 35. spring; 36. first bevel gear; 37. second bevel gear; 38. inner hole. DETAILED DESCRIPTION

[0034] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 9 , the present invention provides a technical solution:

[0036] like Figures 1 to 3 As shown, the corrugated cardboard includes an upper cardboard 1, a lower cardboard 2 and a middle layer, the middle layer is fixedly bonded between the upper cardboard 1 and the lower cardboard 2, the middle layer includes a bending layer 4 and a support plate 3, the bending layer 4 is composed of multiple layers of cardboard bent and bonded to each other, a support plate 3 is arranged between the bending layer 4 and the lower cardboard 2, the support plate 3 includes a pair of parallel and symmetrical longitudinal plates 6, the upper ends of the longitudinal plates 6 are against the bending layer 4, the other ends of the longitudinal plates 6 are fixedly bonded to the lower cardboard 2, and the longitudinal plates 6 and the transverse plates 5 are vertically fixedly bonded.

[0037] The longitudinal plate 6 is provided to provide vertical support force and realize the upper and lower connection of the support plate 3 at the same time.

[0038] Adjacent longitudinal plates 6 are connected by multiple groups of transverse plates 5, on which tie rods 8 penetrating and connecting the bending layers 4 are installed, and vertical insertion holes 10 are provided on the transverse plates 5. The upper end of the tie rod 8 is provided with an inner hole 38 penetrating the bending layer 4, and the upper end of the bending layer 4 is provided with a long strip of offset sheet 7, and the lower end of the offset sheet 7 is provided with a protrusion inserted in the inner hole 38. Side blocks 9 are provided on the outer wall of the lower end of the tie rod 8 and the protrusion, and side grooves corresponding to the side blocks 9 are provided on the inner wall of the insertion hole 10 and the inner wall of the inner hole 38, and the lower end of the tie rod 8 is provided with a rotating end cap 11.

[0039] The upper and lower pressing is used to realize the through extension of the pull rod 8, so that the offset sheet 7 and the pull rod 8 form a rotational offset connection, forming traction on the upper end of the pull rod 8, and the lower end of the pull rod 8 is pulled by the cross plate 5, so that the pull rod 8 is used to realize the fastening connection between the support plate 3 and the bending layer 4, so as to achieve the purpose of pressing and fixing the multiple layers of paper in the bending layer 4, and avoid stratification after immersion in water.

[0040] The preparation process of corrugated paperboard comprises the following steps:

[0041] Step 1: soak the raw material of the bending layer 4, then stack multiple raw materials in sequence and place them in the bending lower mold 16, and spray an adhesive mixed with paper pulp between adjacent raw materials;

[0042] Step 2: Install the finished support plate 3 along the lower mold 16, with the support plate 3 being located between adjacent lower molds 16;

[0043] Step 3: The upper mold 14 is pressed downward to press the multiple layers of raw materials together, and the pull rod 8 is pressed upward to make the end of the pull rod 8 penetrate the wet bending layer 4, and the protrusion at the lower end of the dislocation sheet 7 is inserted into the inner hole 38;

[0044] Step 4: Use the driving assembly to drive the pull rod 8 to rotate, so that the lower end of the pull rod 8 is staggered and clamped on the horizontal plate 5, and the upper end of the pull rod 8 is staggered and connected to the staggered sheet 7;

[0045] Step 5: The upper mold 14 is heated to achieve the purpose of drying the bending layer 4, and demoulding after drying to obtain a finished intermediate layer connecting the bending layer 4 and the support plate 3, and then the intermediate layer is bonded between the upper paperboard 1 and the lower paperboard 2.

[0046] Example 1: Figures 4 to 9As shown, the processing equipment of the corrugated cardboard preparation process includes a processing base 12, a side frame 31 and a pressing plate 13. The upper end of the processing base 12 is provided with a plurality of groups of inner frames 28 distributed at intervals. The support plate 3 is installed on the inner frame 28. The inner frame 28 is provided with a driving component for driving the pull rod 8 to lift and rotate. Adjustment blocks 20 are symmetrically arranged on both sides of the inner frame 28. A clamping component for clamping the longitudinal plates 6 on both sides of the support plate 3 is arranged on the side of the adjustment block 20 close to the support plate 3. Pneumatic adjustment rods 22 are inserted on both sides of the adjustment block 20. The clamping component includes a clamping plate 21. The adjustment rod 22 on one side of the adjustment block 20 is connected to the clamping plate 21, and the clamping plate 21 is pressed on the longitudinal plate 6.

[0047] The clamping plate 21 is used to limit and clamp the two sides of the support plate 3 to ensure the accurate positioning and installation of the support plate 3, while avoiding deviation or shaking of the support plate 3. The adjustment rod 22 is used to adjust the position of the lower mold 16, thereby adjusting the bonding width between the bending layer 4 and the upper paperboard 1 and the lower paperboard 2, and adjusting the overall bonding strength of the paperboard.

[0048] The other side of the adjusting block 20 is connected to the lower mold 16, and a side frame 31 is vertically arranged on the rear side of the processing base 12. A telescopic rod 32 is arranged at the upper end of the side frame 31, and the lower end of the telescopic rod 32 is connected to the pressing plate 13. The upper mold 14 is arranged at the lower end of the pressing plate 13. The bending layer 4 is pressed between the upper mold 14 and the lower mold 16. A built-in heating device is arranged in the upper mold 14. A negative pressure hole 15 is arranged at the lower end of the upper mold 14 opposite to the pull rod 8, and the lower end of the negative pressure hole 15 adsorbs the dislocated sheet 7.

[0049] The telescopic rod 32 is used to drive the pressing plate 13 and the upper mold 14 to descend, so that the multiple layers of moistened bending layer 4 raw materials are tightly pressed together. After pressing down, the pull rod 8 is driven upward to penetrate the bending layer 4 and engage with the dislocated thin sheet 7. After the pull rod 8 is dislocated and rotated, the negative pressure hole 15 is pressurized to cause the dislocated thin sheet 7 to fall off.

[0050] Working principle: first, soak multiple sheets of raw paper for the bending layer 4, and then lay them one by one along the lower mold 16, install the offset sheet 7 on the upper mold 14, use the negative pressure hole 15 to achieve the adsorption of the offset sheet 7, and then use the telescopic rod 32 to drive the upper mold 14 to press so that the offset sheet 7 is opposite to the pull rod 8, and the jacking of the pull rod 8 is used to penetrate the bending layer 4, and the rotation of the pull rod 8 is used to achieve the height offset fixation of the pull rod 8, and the pull rod 8 is used to achieve the fastening connection between the support plate 3 and the bending layer 4, so as to achieve the purpose of pressing and fixing the multiple layers of paper in the bending layer 4, and then the upper mold 14 is heated to achieve the drying of the wet raw material of the bending layer 4. After drying and shaping, the corrugated layer product composed of the support plate 3 and the bending layer 4 is obtained.

[0051] Embodiment 2: On the basis of Embodiment 1, in order to realize the integrated driving of multiple groups of pull rods 8, the driving assembly includes a push rod 27, the lower end bearing of the push rod 27 is rotatably mounted on the inner frame 28, the upper end of the push rod 27 is set as a plug that cooperates with the rotating end cap 11, the lower end of the push rod 27 is fixedly sleeved with a driven gear 26, a telescopic groove 30 is set on one side of the inner frame 28, a tooth plate 29 is slidably inserted in the telescopic groove 30, the tooth plate 29 is meshed with the driven gear 26, and the processing base 12 is symmetrically provided with limit frames 33 on both sides of the tooth plate 29, the limit frame 33 is provided with a connecting rod passing through the telescopic groove 30, the tooth plate 29 is slidably inserted on the connecting rod, and springs 35 are set at both ends of the tooth plate 29, the spring 35 is sleeved on the connecting rod, and the spring 35 is pressed on the inner wall of the limit frame 33.

[0052] The spring 35 is provided to realize elastic installation at both ends of the tooth plate 29, and then the reset force of the spring 35 is utilized to realize automatic reset of the tooth plate 29, the telescopic slot 30 is utilized to limit the telescopic sliding position of the tooth plate 29, the lifting drive of the push rod 27 is utilized to achieve the purpose of lifting the pull rod 8, and the cooperation between the plug and the rotating end cap 11 is utilized to achieve the purpose of driving the pull rod 8 to rotate by the push rod 27.

[0053] A drive shaft 34 driven by a motor is inserted through the limit frame 33, and a gear set is provided in the limit frame 33, the gear set includes a first bevel gear 36 and a second bevel gear 37, the first bevel gear 36 is meshedly connected to the toothed plate 29, and the other side of the first bevel gear 36 is vertically meshedly connected to the second bevel gear 37, and the second bevel gear 37 is fixedly sleeved on the drive shaft 34.

[0054] During the adjustment process, it is only necessary to use the motor to drive the drive shaft 34 to rotate, and the drive shaft 34 drives the second bevel gear 37 to rotate, pulling the first bevel gear 36 to rotate, thereby driving the tooth plate 29 to slide, and utilizing the engagement of the tooth plate 29 with the driven gear 26 at the lower end of multiple groups of push rods 27 to achieve the purpose of driving the push rod 27 to rotate, thereby driving the pull rod 8 to be dislocated.

[0055] Example 3: On the basis of Example 2, in order to further improve the molding efficiency and adaptation range, a slide groove 23 is provided at the upper end of the processing base 12 at a position corresponding to the lower mold 16, an opening groove 25 is provided at one end of the slide groove 23, and a slider 24 slidably inserted in the slide groove 23 is provided at the lower end of the lower mold 16, and the adjusting rod 22 on the other side of the adjusting block 20 is connected to the lower mold 16.

[0056] The open groove 25 is used to facilitate the convenient installation of the slider 24 in the slide groove 23, and the adjusting rod 22 is used to drive the lower mold 16 to slide in the slide groove 23, so as to adjust the gap width between adjacent lower molds 16, thereby adjusting the bonding width between the bending layer 4 and the upper paperboard 1 and the lower paperboard 2, and adjusting the overall bonding strength of the paperboard.

[0057] An inner flow channel 18 is arranged in the inner cavity of the lower mold 16, and a plurality of groups of air holes 19 connected to the inner flow channel 18 are arranged on the outer wall of the upper end of the lower mold 16 in a matrix distribution. The bending layer 4 is pressed and sealed on the ports of the air holes 19, and an air pipe 17 connected to the inner flow channel 18 is arranged on the inner side of the lower mold 16.

[0058] By providing the air holes 19, the inner flow channel 18 and the air pipe 17, the switching of the air flow is realized, so that the heated and evaporated steam is lost quickly, thereby achieving the purpose of rapid drying and forming.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A corrugated paperboard, comprising an upper paperboard (1), a lower paperboard (2) and an intermediate layer, wherein the intermediate layer is fixedly bonded between the upper paperboard (1) and the lower paperboard (2), and characterized in that: The middle layer comprises a bending layer (4) and a support plate (3), wherein the bending layer (4) is composed of multiple layers of paperboards bent and bonded to each other, a support plate (3) is arranged between the bending layer (4) and the lower paperboard (2), and the support plate (3) comprises a pair of parallel and symmetrical longitudinal plates (6), adjacent longitudinal plates (6) are connected by multiple groups of transverse plates (5), and a pull rod (8) penetrating and connecting the bending layer (4) is installed on the transverse plate (5), the upper end of the longitudinal plate (6) is against the bending layer (4), and the other end of the longitudinal plate (6) is fixedly bonded to the lower paperboard (2), and the longitudinal plate (6) and the transverse plate (5) are connected to each other. The cross plate (5) is fixedly bonded vertically, and a vertically penetrating insertion hole (10) is provided on the cross plate (5). The upper end of the pull rod (8) is provided with an inner hole (38) penetrating the bending layer (4). The upper end of the bending layer (4) is provided with a long strip of offset sheet (7). The lower end of the offset sheet (7) is provided with a protrusion inserted into the inner hole (38). The lower end outer wall and the protrusion of the pull rod (8) are provided with side blocks (9). The inner walls of the insertion hole (10) and the inner hole (38) are provided with side grooves corresponding to the side blocks (9). The lower end of the pull rod (8) is provided with a rotating end cap (11) that rotates in cooperation with the drive assembly.

2. A process for preparing the corrugated paperboard according to claim 1, characterized in that: The preparation process comprises the following steps: Step 1: soaking the raw material of the bending layer (4), then stacking a plurality of raw materials in sequence and placing them in a bending lower mold (16), and spraying an adhesive mixed with paper pulp between adjacent raw materials; Step 2: inserting and installing the finished product support plate (3) along the lower mold (16), with the support plate (3) being located between adjacent lower molds (16); Step 3: The upper mold (14) is pressed downward to press the multiple layers of raw materials together, and the pull rod (8) is pressed upward to allow the end of the pull rod (8) to penetrate the wet bending layer (4), and the protrusion at the lower end of the dislocated sheet (7) is inserted into the inner hole (38); Step 4: Use the driving assembly to drive the pull rod (8) to rotate, so that the lower end of the pull rod (8) is staggered and clamped on the horizontal plate (5), and the upper end of the pull rod (8) is staggered and connected to the staggered sheet (7); Step 5: The upper mold (14) is heated to achieve the purpose of drying the bending layer (4), and after drying, the mold is demoulded to obtain a finished intermediate layer connecting the bending layer (4) and the support plate (3), and then the intermediate layer is bonded between the upper paperboard (1) and the lower paperboard (2).

3. A processing device for realizing the corrugated board preparation process according to claim 2, characterized in that: The processing equipment comprises a processing base (12), a side frame (31) and a pressing plate (13); the upper end of the processing base (12) is provided with a plurality of groups of inner frames (28) distributed at intervals; the support plate (3) is mounted on the inner frame (28); a driving component for driving the pull rod (8) to lift and rotate is provided on the inner frame (28); adjustment blocks (20) are symmetrically provided on both sides of the inner frame (28); a clamping component for clamping the longitudinal plates (6) on both sides of the support plate (3) is provided on one side of the adjustment block (20) close to the support plate (3); and a lower plate (6) is connected to the other side of the adjustment block (20). A mold (16) is provided with a side frame (31) vertically arranged on the rear side of the processing base (12); a telescopic rod (32) is provided at the upper end of the side frame (31); the lower end of the telescopic rod (32) is connected to a pressing plate (13); an upper mold (14) is provided at the lower end of the pressing plate (13); a bending layer (4) is pressed between the upper mold (14) and the lower mold (16); a built-in heating device is provided in the upper mold (14); a negative pressure hole (15) is provided at the lower end of the upper mold (14) opposite to the pull rod (8); and the lower end of the negative pressure hole (15) adsorbs the dislocated sheet (7).

4. The processing equipment for realizing the corrugated board preparation process according to claim 3 is characterized in that: The driving assembly comprises a push rod (27), the lower end bearing of the push rod (27) is rotatably mounted on the inner frame (28), the upper end of the push rod (27) is provided with a plug that cooperates with the rotating end cap (11), the lower end of the push rod (27) is fixedly sleeved with a driven gear (26), a telescopic groove (30) is provided on one side of the inner frame (28), a toothed plate (29) is slidably inserted in the telescopic groove (30), and the toothed plate (29) is meshed with the driven gear (26).

5. The processing equipment for realizing the corrugated board preparation process according to claim 4 is characterized in that: The processing base (12) is symmetrically provided with limit frames (33) on both sides facing the tooth plate (29), and a connecting rod penetrating the telescopic groove (30) is provided on the limit frame (33). The tooth plate (29) is slidably plugged on the connecting rod. Both ends of the tooth plate (29) are provided with springs (35), and the springs (35) are sleeved on the connecting rod, and the springs (35) are pressed on the inner wall of the limit frame (33).

6. The processing equipment for realizing the corrugated board preparation process according to claim 5, characterized in that: A drive shaft (34) driven by a motor is inserted through the limit frame (33), and a gear set is arranged in the limit frame (33), the gear set comprising a first bevel gear (36) and a second bevel gear (37), the first bevel gear (36) is meshingly connected to the toothed plate (29), the other side of the first bevel gear (36) is vertically meshingly connected to the second bevel gear (37), and the second bevel gear (37) is fixedly sleeved on the drive shaft (34).

7. The processing equipment for realizing the corrugated board preparation process according to claim 3 is characterized in that: A slide groove (23) is provided at a position of the upper end of the processing base (12) corresponding to the lower mold (16), an open groove (25) is provided at one end of the slide groove (23), a slider (24) slidably inserted in the slide groove (23) is provided at the lower end of the lower mold (16), pneumatic adjustment rods (22) are inserted on both sides of the adjustment block (20), and the clamping assembly includes a clamping plate (21), an adjustment rod (22) on one side of the adjustment block (20) is connected to the clamping plate (21), the clamping plate (21) is pressed onto the longitudinal plate (6), and an adjustment rod (22) on the other side of the adjustment block (20) is connected to the lower mold (16).

8. The processing equipment for realizing the corrugated board preparation process according to claim 7, characterized in that: An inner flow channel (18) is arranged in the inner cavity of the lower mold (16); a plurality of groups of air holes (19) connected to the inner flow channel (18) are arranged on the outer wall of the upper end of the lower mold (16) and are arranged in a matrix; the bending layer (4) is pressed and sealed on the ports of the air holes (19); and an air pipe (17) connected to the inner flow channel (18) is arranged on the inner side of the lower mold (16).

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