Insulating paperboard wet paperboard conveying and cutting device

Abstract

The utility model belongs to the technical field of insulation product production, disclose a kind of insulation paperboard wet paperboard conveying cutting device, including forming cylinder, conveying device, cross cutting device, photoelectric switch;Cross cutting device is equipped with board head cutter and board tail cutter, and board head cutter and board tail cutter are all connected to cross cutting knife frame body;Conveying device lower part is equipped with conveying dry net, and conveying dry net is driven by several guide rollers, and guide roller is driven by pneumatic cylinder;Conveying dry net lower part is equipped with pulper;Several cross cutting knives are evenly connected between the board head cutter and board tail cutter of cross cutting knife frame body, and longitudinal cutting knife frame body is connected with longitudinal cutting knife in the middle in the upper surface of conveying device close to forming cylinder end part;The conveying belt of conveying roller group is composed of several conveying strips;The end part of conveying dry net close to board head cutter end is higher than the end part of conveying dry net close to board tail cutter.The utility model structure is simple, easy to operate, can improve processing efficiency, reduce material loss and labor intensity.

Description

Technical Field

[0001] This utility model belongs to the field of insulation product manufacturing technology, specifically relating to a wet paperboard conveying and cutting device for insulating paperboard. Background Technology

[0002] In the production of insulating paperboard, the prepared pulp is conveyed to the forming section of the paper machine to form a wet paper sheet with a high water content. The wet paper sheet adheres to the felt and is vacuum-sealed to remove a certain amount of water. After being cut by a pre-cutting scraper, the wet paper sheet, detached from the felt, is wound around the forming cylinder to form a wet paperboard of a certain thickness. The wet paperboard is dehydrated by three rollers on the forming cylinder and then wound to the specified thickness according to the order requirements before initial cutting. The cut wet paperboard enters the subsequent process, where it is hot-pressed and dried to prepare dry paperboard. Alternatively, the wet paperboard can be used as raw material and transported by forklift to different workshops for pressing and drying using different molds.

[0003] The existing production process from forming cylinder to forklift transportation is as follows: the wet cardboard formed on the forming cylinder (size 3.4m*6.5m, weight about 70-250kg) is transported to the cutting table (also equipped with a conveyor belt) via a conveyor belt. The wet cardboard is stopped by a photoelectric switch. Then, the front and rear cross-cutting blades are used to cut off the board head and tail respectively, and then it is transported to the pre-loading machine. The board head and unqualified wet cardboard will fall into the pulper set under the cutting table through the gap between the cutting table and the pre-loading machine. The board tail will fall onto the dry wire conveyor belt set under the cutting table through the gap between the cutting table and the conveyor belt, and then be transported to the pulper via the dry wire conveyor belt. Because the wet cardboard is quite large, much larger than the transport pallet, and needs to be cut into 3-5 pieces for actual use, 3-4 workers are currently assigned to the pre-loading machine to fold the wet cardboard multiple times before placing it on the pallet and transporting it to the next process for cutting. This operation is labor-intensive, inefficient, and the multiple folding before cutting results in significant waste (increasing the amount of scrap). Therefore, it needs to be modified. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a wet paperboard conveying and cutting device for insulating paperboard, which overcomes the defects of the prior art, has a simple structure, is easy to operate, and can improve processing efficiency and reduce material loss and labor intensity.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A wet paperboard conveying and cutting device for insulating paperboard includes a forming cylinder, a conveying device composed of multiple sets of conveying rollers, a cross-cutting device sharing a common drive system, and a photoelectric switch located at the end of the conveying device. The cross-cutting device has a head cutter and a tail cutter, both screwed to the same cross-cutting blade frame. A conveying mains is located at the bottom of the conveying device, driven by several guide rollers, which are driven by cylinders. A pulper is located at the lower part of the conveying mains near the head cutter end. The cross-cutting blade frame... Several cross-cutting blades are evenly screwed together between the head cutter and the tail cutter. A longitudinal cutter frame is provided on the upper part of the conveying device near the forming cylinder, and a longitudinal cutter is screwed together in the middle of the longitudinal cutter frame. The conveyor belt of the conveyor roller group consists of several parallel conveyor strips. The end of the conveyor main network near the head cutter is higher than the end of the conveyor main network near the tail cutter. The cylinder is a double-acting cylinder. The forming cylinder, conveying device, cross-cutting device, photoelectric switch, double-acting cylinder, and longitudinal cutter are all electrically connected to the PLC automatic control system.

[0007] Preferably, the head cutter, tail cutter, and cross cutter are all located in the gap between two adjacent sets of conveyor rollers.

[0008] Preferably, the number of cross-cutting blades is 1 to 3.

[0009] Preferably, the longitudinal cutter is positioned at the upper part of the gap between two adjacent sets of conveyor rollers.

[0010] Preferably, the longitudinal cutter is positioned between two adjacent conveyor bars. This prevents damage to the conveyor bars.

[0011] Preferably, the double-acting cylinder is controlled by a two-position five-way solenoid valve, and automated control is achieved with the help of a PLC; it is a Festo (Germany) DFM-32-160-PA-GF cylinder.

[0012] Preferably, the conveyor belt is provided with a tray on the side near the end of the tail cutter.

[0013] Preferably, the end of the conveyor wire near the head cutter is 15 cm higher than the end of the conveyor wire near the tail cutter. This facilitates the conveying of the cut wet cardboard to the pallet and does not affect the conveying of the head, tail, and defective wet cardboard to the pulper.

[0014] Due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0015] This invention, by adding longitudinal cutters and several corresponding transverse cutters between the head and tail cutters, can cut wet cardboard to a set size during the conveying process, avoiding waste in later processing and eliminating the need for manual folding, thus eliminating the use of pre-loading equipment. Simultaneously, the cylinder of the conveyor belt is replaced with a double-acting cylinder, enabling bidirectional material transport. Furthermore, the end of the conveyor belt near the head cutter is raised, which, without affecting the conveying of the head, tail, and defective wet cardboard, facilitates the transport of the cut wet cardboard. The cut wet cardboard is then transported to a pallet, stacked manually, and then transported by forklift to the subsequent processing stage.

[0016] In summary, this utility model has a simple structure, is easy to operate, and can improve processing efficiency, reduce material waste and labor intensity. Attached Figure Description

[0017] Figure 1 This is a side view structural diagram of an embodiment of the present utility model;

[0018] Figure 2 This is a top view of an embodiment of the present invention.

[0019] In the diagram, 1. Forming cylinder; 2. Conveying roller assembly; 3. Cross-cutting device; 31. Plate head cutter; 32. Plate tail cutter; 33. Cross-cutting blade frame; 34. Cross-cutting blade; 4. Conveying dry net; 5. Guide roller; 6. Pulper; 7. Longitudinal cutter frame; 8. Longitudinal cutter; 9. Conveying strip; 10. Pallet. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example 1:

[0022] like Figures 1 to 2As shown, a wet paperboard conveying and cutting device for insulating paperboard includes a forming cylinder 1, a conveying device (not shown) consisting of multiple sets of conveying rollers 2, a cross-cutting device 3 sharing a common drive system (the cross-cutting blade holder is set on one side of the wet paperboard, and the wet paperboard is pushed from one side for cutting; during cutting, the blade motor starts first to drive the blade to rotate, and after cutting, it can reciprocate), and a photoelectric switch (not shown) set at the end of the conveying device; the cross-cutting device 3 is equipped with a head cutter 31 and a tail cutter 32, both of which are screwed to the same cross-cutting blade holder 33; a conveying mesh 4 is provided at the bottom of the conveying device, which is driven by several guide rollers 5, and the guide rollers 5 are driven by cylinders (not shown). A pulper 6 is located at the lower part of the conveyor belt 4 near the end of the head cutter 31; a cross cutter 34 is evenly screwed between the head cutter 31 and the tail cutter 32 of the cross cutter frame 33; a longitudinal cutter frame 7 is located on the upper part of the conveyor device near the end of the forming cylinder 1, and a longitudinal cutter 8 is screwed in the middle of the longitudinal cutter frame 7; the conveyor belt (not shown) of the conveyor roller group 2 consists of several parallel conveyor strips 9; the end of the conveyor belt 4 near the head cutter 31 is higher than the end of the conveyor belt 4 near the tail cutter 32; the cylinder is a double-acting cylinder; the forming cylinder 1, the conveyor device, the cross cutter 3, the photoelectric switch, the double-acting cylinder, and the longitudinal cutter 8 are all electrically connected to the PLC automatic control system (not shown);

[0023] A tray 10 is provided on one side of the conveyor belt 4 near the end of the tail cutter 32.

[0024] In actual production, the automatic control parameters are first set according to the process requirements, the number of cross-cutting blades 34 is set according to the product requirements, and the cross-cutting blades 34 are installed in appropriate positions. After the machine is started, the wet paperboard is cut from the forming cylinder and then conveyed along the conveyor device. If the quality of the wet paperboard is found to be unqualified (judged manually: such as the presence of material lumps, embossing, wrinkles, or unqualified paperboard thickness on the surface; the number of unqualified products is small, accounting for about 1.0% of the total), the operator sends an instruction to the PLC automatic control system to directly convey the wet paperboard to the top of the conveyor device, and then conveys it to the pulper 6 through the conveyor wire 4 for pulping and reuse. If there is no manual instruction, the cut wet paperboard is first longitudinally cut by the longitudinal cutter 8 (controlled by the PLC automatic control system) during the conveying process. When the wet paperboard reaches the end of the conveyor device, the photoelectric switch detects the wet paperboard and stops the conveying. The cross-cutting device 3 then drives the cross-cutting. The blade 34, the head cutter 31, and the tail cutter 32 cut the wet paperboard. The head and tail cutters fall onto the conveyor wire 4 from the gap between the end of the conveyor device and the adjacent conveyor roller group 2, respectively, and are then conveyed to the pulper 6 by the conveyor wire 4. Then, the conveyor wire 4 is stopped, and under the action of a double-acting cylinder, it is rotated in reverse to prepare for conveying the cut wet paperboard. At the same time, the conveyor device is started to convey the first part of the cut wet paperboard to the conveyor wire 4. The conveyor device is paused, and after the first part of the wet paperboard has been conveyed away by the conveyor wire 4, the conveyor device is started again to convey the second part of the wet paperboard. This process is repeated to complete the conveying of the entire wet paperboard. When the cut wet paperboard is conveyed to the end of the conveyor wire 4, it is manually stacked onto the pallet 10. After a certain number of stacks are made, the pallet 10 is removed by a forklift for the next process, thus completing one round of wet paperboard transport and cutting.

[0025] The above operations can effectively reduce the labor intensity of employees, improve work efficiency, and reduce the waste of wet cardboard.

[0026] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A wet paperboard conveying and cutting device for insulating paperboard, comprising a forming cylinder, a conveying device composed of multiple sets of conveying rollers, a cross-cutting device sharing a common drive system, and a photoelectric switch located at the end of the conveying device; the cross-cutting device is equipped with a head cutter and a tail cutter, both of which are screwed to the same cross-cutting blade frame; a conveying mains is provided at the lower part of the conveying device, the conveying mains being driven by several guide rollers, which are driven by cylinders; characterized in that... A pulper is installed at the lower part of the conveyor belt near the end of the board head cutter; several cross-cutting blades are evenly screwed between the board head cutter and the board tail cutter of the cross-cutting blade frame; a longitudinal cutting blade frame is installed on the upper part of the conveying device near the end of the forming cylinder, and a longitudinal cutting blade is screwed in the middle of the longitudinal cutting blade frame; the conveyor belt of the conveying roller group consists of several parallel conveying strips; the end of the conveyor belt near the end of the board head cutter is higher than the end of the conveyor belt near the end of the board tail cutter; the cylinder is a double-acting cylinder; the forming cylinder, conveying device, cross-cutting device, photoelectric switch, double-acting cylinder, and longitudinal cutting blade are all electrically connected to the PLC automatic control system.

2. The insulating paperboard wet paperboard conveying and cutting device as described in claim 1, characterized in that: The head cutter, tail cutter, and cross cutter are all located in the gap between two adjacent sets of conveyor rollers.

3. The insulating paperboard wet paperboard conveying and cutting device as described in claim 1, characterized in that: The number of cross-cutting blades is 1 to 3.

4. The insulating paperboard wet paperboard conveying and cutting device as described in claim 1, characterized in that: The longitudinal cutter is positioned at the top of the gap between two adjacent sets of conveyor rollers.

5. The insulating paperboard wet paperboard conveying and cutting device as described in claim 1, characterized in that: The longitudinal cutter is positioned between two adjacent conveyor bars.

6. The insulating paperboard wet paperboard conveying and cutting device as described in claim 1, characterized in that: The conveyor belt is equipped with a tray on one side near the end of the tail cutter.

7. The insulating paperboard wet paperboard conveying and cutting device as described in claim 1, characterized in that: The end of the conveyor belt near the head cutter is 15 cm higher than the end of the conveyor belt near the tail cutter.

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