Bamboo powder paving and leveling mechanism
By combining multiple scrapers and shaping and polishing plates, the problem of uneven bamboo powder paving was solved, achieving higher flatness and thickness requirements and improving the quality of bamboo composite materials.
Patent Information
- Application Number
- CN202423063794.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-12
AI Technical Summary
In existing technologies, it is difficult to achieve a high degree of flatness when bamboo powder is laid on bamboo composite materials, leading to quality problems in bamboo composite materials.
A multi-scraper structure is adopted, with the scraper gradient height and angle set, and combined with the shaping plate and polishing plate to gradually smooth the bamboo powder layer, ensuring the flatness and thickness requirements of the bamboo powder layer.
It achieves a higher degree of flatness in bamboo powder paving, avoids damage to bamboo powder particles and surface pit defects, and improves the quality of bamboo composite materials.
Smart Images
Figure CN223589646U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of production devices of bamboo composite material, especially a kind of mechanism of bamboo powder paving and leveling. BACKGROUND
[0002] Bamboo composite material is a relatively common product, and its general production process is to plane sand to blank plate, then roll glue on the surface, and then use a paving machine to evenly pave bamboo powder on the plate, and finally perform pressure curing to form. The thickness of bamboo powder paved on the blank plate is generally required to be about 3mm, and the bamboo powder also needs to be leveled, otherwise it will cause quality problems of subsequent bamboo composite material. Therefore, the prior art adds a scraper to the rack of the conveying machine. The plate is conveyed under the conveying machine, passes through the scraper, and the scraper scrapes off the bamboo powder that exceeds the paving thickness of the bamboo powder, so as to achieve the purpose of leveling the bamboo powder paving. This method can indeed ensure a certain flatness of the bamboo powder, but it cannot meet the flatness requirements of composite materials with higher flatness requirements. SUMMARY
[0003] In view of the defects in the prior art, the utility model provides a bamboo powder paving and leveling mechanism. The leveling mechanism improves the existing bamboo powder leveling mechanism, sets multiple scrapers for leveling, achieves higher leveling degree, and meets the quality requirements of composite bamboo materials.
[0004] To solve the above technical problems, the utility model adopts the technical scheme of:
[0005] A bamboo powder paving and leveling mechanism, comprising a belt conveyor, a paving machine and a scraper are installed on the belt conveyor. According to the conveying direction of the belt conveyor, the scraper is located behind the paving machine. The scraper comprises a first scraper and a second scraper. The first scraper is provided in multiple pieces. According to the conveying direction of the belt conveyor, the height of the first scraper located in front is greater than the height of the first scraper located behind. The height difference between the two adjacent first scrapers is 0.2-0.5mm. The second scraper is located behind the first scraper, and the height of the second scraper from the blank plate is equal to the thickness of the bamboo powder paving.
[0006] The first scraper comprises a vertical plate and an inclined plate, which are connected together. The inclined plate is inclined from the lower right to the upper left. The angle between the inclined plate and the vertical plate is 35-62°. According to the conveying direction of the belt conveyor, the angle of the first scraper located in front is smaller than the angle of the first scraper located behind.
[0007] The second scraper is provided with an inclined surface, which is inclined from the upper left to the lower right. The slope of the inclined surface is 30-45°.
[0008] Further comprise a shaping plate, according to the conveying direction of the belt conveyor, the shaping plate is located behind the second scraper, the bottom of the shaping plate is a circular arc surface, and the height of the lowest point of the circular arc surface from the blank plate is equal to the thickness of the bamboo powder paving.
[0009] Further comprise a polishing plate, according to the conveying direction of the belt conveyor, the polishing plate is located behind the shaping plate, and the bottom of the polishing plate is provided with polishing sandpaper, and the height of the polishing sandpaper from the blank plate is equal to the thickness of the bamboo powder paving.
[0010] Compared with the prior art, the present application has the following beneficial effects:
[0011] The present application changes the structure of the existing one scraper to realize bamboo powder leveling by multiple first scrapers, and the installation height of the scraper is required to have a gradient, that is, the height of the front scraper is greater than that of the rear scraper, so that the scraper gradually scrapes off the bamboo powder higher than the thickness of the bamboo powder, realizes the purpose of gradual leveling, and gradually scrapes off the bamboo powder, so that the leveling resistance is reduced, and the leveling is easier. BRIEF DESCRIPTION OF DRAWINGS
[0012] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the specific embodiments or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally indicated by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.
[0013] Figure 1 It is a whole structure schematic view of the present application;
[0014] Figure 2 It is a first scraper structure schematic view;
[0015] Figure 3 It is a second scraper structure schematic view;
[0016] Figure 4 It is a shaping plate structure schematic view;
[0017] Figure 5 It is a polishing plate structure schematic view.
[0018] Reference signs:
[0019] 1, belt conveyor, 2, paving machine, 20, feed hopper, 21, material falling channel, 3, first scraper, 30, vertical plate, 31, inclined plate, 4, second scraper, 40, inclined surface, 5, shaping plate, 50, circular arc surface, 6, polishing plate, 60, polishing plate sandpaper, 7, blank plate. DETAILED DESCRIPTION
[0020] The utility model discloses to solve the quality problem of subsequent bamboo board caused by insufficient flatness after bamboo powder paving and carry out the improved design, and the existing technology is directly welded with a scraper on the belt conveyor to scrape off the structure exceeding the bamboo powder paving thickness to reach the purpose of leveling, and obviously, although this structure is simple, but the scraping effect is relatively poor, and it is difficult to meet the manufacture of the bamboo board with higher flatness requirement.
[0021] In order to achieve better bamboo powder leveling purpose, the utility model improves the structure of the existing scraper, sets up multiple scraper gradient scraping, and also improves the shape and structure of the scraper to achieve the purpose of high leveling. The utility model will be described in detail below in combination with the embodiments and the drawings.
[0022] Embodiment 1
[0023] The embodiment provides a bamboo powder paving and leveling mechanism, which comprises a belt conveyor 1, the belt conveyor comprises a rack, a belt, a driving motor and a transmission structure, the belt conveyor is an existing belt conveyor, and the belt conveyor is not repeated here, a paving machine 2, a first scraper 3 and a second scraper 4 are sequentially installed according to the conveying direction of the belt conveyor, the paving machine is used for realizing bamboo powder paving on a blank plate 7, and the specific structure of the paving machine comprises an inlet hopper 20 and a blanking channel 21, the inlet hopper 20 is installed above the blanking channel 21, one end of the blanking channel 21 is connected to the inlet hopper, and the other end is located above the belt conveyor 1; workers pour bamboo powder into the inlet hopper 20, the bamboo powder falls on the blank plate 7 on the belt conveyor 1 through the blanking channel 21, and the bamboo powder paving action is realized. Of course, other structures can also be used to realize bamboo powder paving, since they are not the improvement points of the utility model, the existing structures can be used, and thus the existing structures are not repeated here. The improvement point of the embodiment is that the existing scraper is replaced by the first scraper 3 and the second scraper 4, and the first scraper 3 is used to replace the existing scraper, specifically, the first scraper 3 is provided in multiple pieces, two or more pieces can be used, preferably three pieces, less than three pieces, the scraping effect is not obvious, more than three pieces, material is wasted, the machine structure is complicated, and the manufacturing cost is increased, therefore, preferably three pieces. According to the conveying direction of the belt conveyor, the height of the first scraper 3 located in the front is greater than that of the first scraper located in the rear, and the height difference between adjacent two first scrapers is 0.2-0.5 mm, for example, the height difference between the first first scraper and the second first scraper is 0.5 mm, and the height difference between the second first scraper and the third first scraper is 0.4 mm. The height of the first scraper located in the front is greater than that of the scraper located in the rear, so that the scraper gradually scrapes off the bamboo powder higher than the thickness of the bamboo powder, and the purpose of gradually scraping is achieved. The scraping resistance gradually decreases, and the scraping is easier. Moreover, the bamboo powder layer is scraped layer by layer, and the force borne by the bamboo powder layer is smaller than that in one-time scraping, so that the bamboo powder particles in the bamboo powder layer are not easily damaged by friction with the bamboo powder particles below when being scraped, the defects, such as the bamboo powder particles being scraped and damaged and the concave defects being left on the surface of the bamboo powder layer, caused by one-time scraping can be effectively avoided, and the surface of the bamboo powder layer is ensured to be free of concave defects. After the bamboo powder layer is scraped by the multiple first scrapers, the second scraper is used to scrape the bamboo powder layer, so as to ensure the thickness of the bamboo powder layer and meet the thickness requirement of the bamboo powder layer. The height difference of 0.2-0.5 mm is designed based on the scraping force and the force borne by the bamboo powder, and the size design is beneficial to scraping the bamboo powder without damaging the bamboo powder layer. In order to ensure the thickness requirement of the bamboo powder layer, the height of the second scraper 4 from the blank plate is equal to the thickness of the bamboo powder paving. That is to say, the second scraper only needs to ensure the thickness requirement of the bamboo powder paving, and can scrape off the excess bamboo powder and meet the thickness requirement.In order to make the first scraper easier to flatten, we have a structural design for the first scraper, specifically the first scraper includes vertical plate 30 and inclined plate 31, vertical plate 30 and inclined plate 31 are connected together, the inclined plate is inclined from the lower right to the upper left, the angle between the inclined plate and the vertical plate is 35-62°, the angle of the first scraper located in front according to the conveying direction of the belt conveyor is smaller than the angle of the first scraper located in the rear. Through such structural design and angle requirement, first of all, it is conducive to scraping the bamboo powder, and at the same time, it provides a downward pressure to the bamboo powder, which helps to press the bamboo powder down tightly, which can compact the voids in the bamboo powder and avoid holes, which helps the quality of the bamboo board. The second scraper 40 is multiple, preferably 3, the second scraper is provided with an inclined surface 40, the inclined surface 40 is inclined from the upper left to the lower right, the slope of the inclined surface is 30-45°. The structural design of the second scraper can also bring the above-mentioned effect, which is conducive to the scraping of the bamboo powder, and also brings a downward pressure to the bamboo powder, which further avoids the appearance of holes.
[0024] Example 2
[0025] In order to further improve the flatness of the bamboo powder, we also install a shaping plate 5 on the belt conveyor, according to the conveying direction of the belt conveyor, the shaping plate 5 is located behind the second scraper 4, the bottom of the shaping plate is a circular arc surface 50, the lowest point of the circular arc surface 50 is equal in height to the thickness of the bamboo powder paving. After the blank board 7 passes through the shaping plate 5, the bamboo powder on the blank board contacts the circular arc surface 50 of the shaping plate, after the action of the front scraper, a small part of the bamboo powder higher than the bamboo powder paving thickness is pressed down by the rolling action of the circular arc surface after the circular arc surface, part of the bamboo powder not bonded to the blank board is also pressed down and bonded to the blank board, reducing the protrusions of burrs or small particles on the surface of the bamboo powder. Further improve the flatness of the bamboo powder.
[0026] In order to further reduce the burrs or small particles on the bamboo powder, and further improve the flatness of the surface of the bamboo powder, we also install a polishing plate 6 on the belt conveyor, according to the conveying direction of the belt conveyor, the polishing plate 6 is located behind the shaping plate 5, the polishing plate 6 is provided with polishing sandpaper 60 at the bottom, the height of the polishing sandpaper from the blank board is equal to the thickness of the bamboo powder paving, through the action of the polishing sandpaper, a small amount of burrs or small particle protrusions on the surface are polished flat, which plays a role of polishing and grinding, and further improves the flatness of the surface of the bamboo powder.
[0027] It should be noted that the first scraper, the second scraper, the shaping plate and the polishing plate can be fixedly installed on the belt conveyor, or can be slidably installed on the belt conveyor through a support to realize the sliding action on the belt conveyor, so as to adjust the height of the first scraper, the second scraper, the shaping plate and the polishing plate relative to the blank plate, and adapt to different bamboo powder paving heights.
[0028] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.
Claims
1. A bamboo powder paving and leveling mechanism, comprising a belt conveyor, a paving machine and a scraper are installed on the belt conveyor, and the scraper is located behind the paving machine according to the conveying direction of the belt conveyor, characterized in that: The scraper comprises a first scraper and a second scraper, the first scraper is arranged as multiple pieces, and the height of the first scraper in front is greater than the height of the first scraper at the rear in the conveying direction of the belt conveyor, the height difference between two adjacent first scrapers is 0.2-0.5mm, and the second scraper is located at the rear of the first scraper, and the height of the second scraper from the blank plate is equal to the thickness of the bamboo powder paving. 2. The bamboo powder paving and leveling mechanism according to claim 1, characterized in that: The first scraper comprises a vertical plate and an inclined plate, the vertical plate and the inclined plate are connected together, the inclined plate is inclined from the lower right to the upper left, the angle between the inclined plate and the vertical plate is 35-62°, and the angle of the first scraper in front is smaller than the angle of the first scraper at the rear in the conveying direction of the belt conveyor.
3. The bamboo powder paving and leveling mechanism according to claim 1 or 2, characterized in that: The second scraper is arranged as multiple pieces, and the second scraper is provided with an inclined surface, the inclined surface is inclined from the upper left to the lower right, and the slope of the inclined surface is 30-45°.
4. The bamboo powder paving and leveling mechanism according to claim 1, characterized in that: Further comprising a shaping plate, the shaping plate is located at the rear of the second scraper in the conveying direction of the belt conveyor, and the bottom of the shaping plate is a circular arc surface, the lowest point of the circular arc surface is equal in height to the thickness of the bamboo powder paving from the blank plate.
5. The bamboo powder paving and leveling mechanism according to claim 1 or 4, characterized in that: Further comprising a polishing plate, the polishing plate is located at the rear of the shaping plate in the conveying direction of the belt conveyor, the polishing plate is provided with polishing sandpaper at the bottom, and the polishing sandpaper is equal in height to the thickness of the bamboo powder paving from the blank plate.