A thin bamboo sheet toughening and winding and setting integrated processing device

Abstract

The application provides a thin bamboo piece toughening and winding and shaping integrated processing device, which comprises a rack, a device controller, a wetting device, a tension control device, a winding and shaping device, a pressurizing device and a heating and solidifying device, wherein the device controller controls the operation state of the device; the wetting device sprays the thin bamboo surface to make it toughened; the tension control device makes the thin bamboo piece straight; the winding and shaping device comprises a replaceable core mold, a motor and a pressure roller, the motor drives the core mold to rotate, and the pressure roller cooperates with the core mold to realize the close winding of the thin bamboo pieces of different levels; the pressurizing device comprises a pressure sensor controller and a pressurizing rod, and the pressure sensor controller keeps a certain pressure between the pressurizing rod and the wound thin bamboo pieces; and the heating and solidifying device dries and solidifies the thin bamboo winding product through microwave heating. The application is favorable for enhancing the toughness of the thin bamboo piece, improving the problem of poor gluing quality caused by uneven stress in the thin bamboo winding, and realizing the integrated processing of the thin bamboo winding and shaping.

Description

TECHNICAL FIELD

[0001] The application relates to a thin bamboo piece toughening and winding integrated forming device for producing bamboo winding products. BACKGROUND

[0002] The bamboo winding products are made of thin bamboo pieces for width splicing and length splicing, and are obtained through softening, winding and curing, such as bamboo winding straws, bamboo winding cups and bamboo winding lamps. The straws on the market are mainly traditional plastic and paper straws. The plastic straws are difficult to degrade and can exist in the living environment for a long time, causing irreversible damage to the environment. The paper straws are low in strength and easy to soften when meeting water. China is rich in bamboo resources, and bamboo has the characteristics of short growth cycle, environmental friendliness, large specific strength and good toughness. The bamboo straws have the characteristics of degradability and sustainability, are light in quality, high in tensile strength, resistant to corrosion and durable, can solve the problems of environmental pollution of plastic and easy softening of paper straws when meeting water, and can reduce the treatment cost of waste.

[0003] Traditional bamboo products are in a cylindrical shape and are made by drilling holes in complete bamboo branches and stems, so that the utilization rate of bamboo is low and the material waste rate is high. The bamboo products made by the method are easy to split and lose the bearing capacity under the action of load due to the hollow structure, and the bamboo products made by the winding method fully play the characteristics of high axial tensile strength and strong anti-deformation performance of bamboo. The existing winding equipment for bamboo products and bamboo straws directly winds the thin bamboo pieces on a mold by driving a motor, so that the uniformity of the bamboo pieces cannot be guaranteed, the winding thickness is uneven, and the strength of different parts of the same product is different. In addition, the thin bamboo pieces with a certain water content are directly used for winding, which may be broken due to the too large winding angle and the limited toughness, so that the processing is interrupted. SUMMARY

[0004] (I) Technical problems solved

[0005] The purpose of the application is to provide a thin bamboo piece toughening and winding integrated forming device, which solves the following technical problems: the wetting device can wet the surface of the thin bamboo piece, improve the toughness of the thin bamboo piece, and prevent the thin bamboo piece from being broken during processing; the cooperation of the pressure rod and the pressure roller can improve the uneven pressure problem in the current bamboo winding processing; the microwave heating can reduce the water content of the thin bamboo piece and achieve the purpose of gluing and forming. The processing efficiency of the bamboo piece winding and the strength of the product are improved.

[0006] (II) Technical solutions

[0007] In order to achieve the above purpose, the application provides the following technical solutions: a thin bamboo piece toughening and winding integrated processing device, which comprises a rack, a device controller, a wetting device, a tension control device, a winding forming device, a pressing device and a heating and curing device.

[0008] The wetting device sprays water mist on the thin bamboo surface before feeding and during feeding to wet the surface and improve the toughness of the thin bamboo sheet; the tension control device includes two tension controllers arranged in front and back in the horizontal direction and arranged in up and down in the vertical direction on the rack on the right side of the core mold; the thin bamboo sheet roll passes under the first tension controller and above the second tension controller and is fed to the winding device, and the thin bamboo sheet is in a straightened state; the winding forming device is composed of a pressure sensor built-in pressure roller, a motor and a core mold, the limiting device and the core mold are connected with the rack, the motor drives the core mold to rotate, the pressure roller is located between the core mold and the tension controller, the thin bamboo sheet is wound from the pressure roller to the core mold, and the core mold is replaceable; one end of the pressing device is connected with the rack, when the thin bamboo sheet is wound on the core mold, the pressing rod provides a certain pressure on the outer diameter of the wound thin bamboo, when the pressure exceeds the rated pressure, the pressing rod moves away from the core mold through the movement of the pressure sensor controller, and the pressing rod is always close to the outer surface of the wound thin bamboo during the process to realize uniform pressure on the wound thin bamboo; during winding, the wound product is continuously heated by microwave heating, the microwave heating can realize uniform and rapid heating of the inner and outer layers, reduce the moisture content of the bamboo sheet, and make the thin bamboo glue setting, realize the integrated processing of thin bamboo winding and setting.

[0009] (Three) beneficial effects

[0010] The patent provides a thin bamboo sheet toughening and winding setting integrated processing device. It has the following beneficial effects:

[0011] (1) The thin bamboo sheet toughening and winding setting integrated processing device sprays water mist on the thin bamboo surface before feeding to make it have good toughness, and sprays water mist on the thin bamboo sheet surface multiple times during feeding, the liquid flow of the spraying is controlled by adjusting the parameters of the wetting device, the thin bamboo sheet maintains a high moisture content, and the thin bamboo has strong toughness and tensile strength, and is not easy to break during winding.

[0012] (2) The thin bamboo sheet toughening and winding setting integrated processing device adjusts the tension controller to make the thin bamboo sheet in a tight state to ensure the uniformity of the thin bamboo sheet feeding and winding.

[0013] (3) The thin bamboo sheet toughening and winding setting integrated processing device adopts multiple pressure methods on the outer diameter of the wound thin bamboo during winding, and the pressure is provided by the pressing device, which can improve the problems of poor gluing quality and deviation of the thin bamboo sheets wound at different levels due to uneven pressure, and the winding mold is replaceable, which can realize the rapid setting of thin bamboo winding products of different shapes.

[0014] (4) The thin bamboo piece toughening and winding and setting integrated processing device of the present application, the microwave heating device continuously heats the winding bamboo piece in the winding process, the microwave heating has uniformity and penetrability, makes the winding bamboo piece surface and inside simultaneously and uniformly penetrate electromagnetic wave and generates heat energy, shortens the heat conduction time in the conventional heating, reduces the moisture content of the bamboo piece, the hot air circulating machine acts at the same time, outputs the evaporated water vapor, improves the heating efficiency, makes the winding thin bamboo quickly dry and solidify and set. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the present application

[0016] Figure 2 It is the inside structure schematic diagram of the front cover plate

[0017] Figure 3 It is the whole structure sectional view

[0018] Figure 4 It is the winding device structure schematic diagram

[0019] Figure 5 It is the moving and pressing device position and structure schematic diagram

[0020] Figure 6 It is the winding and cover plate schematic diagram

[0021] Figure 7 It is the heating and setting process schematic diagram

[0022] 10 - frame, 20 - equipment controller, 30 - wetting device, 31 - independent humidifying device, 32 - high-pressure atomizing nozzle, 40 - tension control device, 41 - first tension controller, 42 - second tension controller, 50 - winding forming device, 51 - pressure-sensitive roller, 52 - rotating core mold, 53 - motor, 60 - pressing device, 61 - pressure sensor controller, 62 - pressing rod, 70 - heating and solidifying device, 71 - movable door, 72 - hot air circulating machine, 73 - microwave generator. DETAILED DESCRIPTION

[0023] The present application will be described in detail below in combination with the drawings and specific embodiments.

[0024] Reference Figure 1The application discloses a thin bamboo piece toughening and winding and shaping integrated processing device which comprises a rack (10), a device controller (20), a wetting device (30), a tension control device (40), a winding and shaping device (50), a pressurizing device (60) and a heating and solidifying device (70). The wetting device (30) is arranged between one end of the rack (10) and the adjacent tension control device (40); the device controller (20) is used for controlling and monitoring the running state of the whole device; the winding and shaping device (50) comprises a pressure-sensitive roller (51), a limiting device (52), a rotating core mold (52) and a motor (53), the pressure-sensitive roller (51) is located between the core mold (52) and the tension control device (40), the motor (53) drives the core mold (52) to rotate, and the core mold (52) is replaceable; the pressurizing device (60) comprises a pressure sensor controller (61) and a pressurizing rod (62), the pressure sensor controller (61) is connected with the rack (10) and the pressurizing rod (62) at two ends and is located in the radial direction of the core mold (52), and the pressurizing device (60) moves on the rack (10) through the pressure sensor controller (61); the heating and solidifying device (70) comprises a movable door (71), a hot air circulating machine (72) and a microwave generator (73), the movable door (71) forms a semi-closed cavity together with the main machine, and the hot air circulating machine (72) is symmetrically distributed with the core mold (52) as an axis.

[0025] The device adopts a thin bamboo winding method, the winding core mold die can be replaced according to the different inner diameter and outer diameter of the bamboo winding product, and the parameters of the device can be adjusted to realize the manufacturing of different bamboo winding products.

[0026] The following is a specific embodiment of the application.

[0027] Preparation of thin bamboo sheet: 3-5 years old bamboo with a diameter of 10 cm or above and no defects is collected, and the bamboo is cut off by avoiding the joints, and is subjected to a series of treatments such as softening, hot planing, cold pressing, drying, sanding of bamboo green wax layer, fine planing and roll sanding, and then is spliced and lengthened to obtain suitable thin bamboo pieces.

[0028] Example 1: Bamboo winding and gluing and shaping processing method of bamboo winding pen barrel

[0029] Selection of thin bamboo pieces: thin bamboo pieces with a thickness of 0.15mm-0.4mm, a width of 6-8mm, a water content of 13% and a side close to the bamboo green side are selected, and the two sides and the outer side of the thin bamboo pieces are glued.

[0030] Core mold and device parameter adjustment: the core mold (52) is replaced with a die with an inner diameter of 1cm, the pen barrel inner lining layer with a glued surface is wound on the core mold (52) first, the power is turned on, the liquid flow of the wetting device (30) is adjusted to 2.4L / H, the pressure shaft force of the pressurizing device (60) is 0.3MPa, the microwave heating temperature is 100℃-120℃, the heating time is 1min, and the motor (53) is adjusted to an appropriate rotating speed.

[0031] Bamboo winding pen barrel winding and glue setting: push the movable door (71) to the appropriate position, the thin bamboo sheet first from the independent humidifier (31) below, from the first tension controller (41) below, the second tension controller (42) above winding to the pressure roller (51) below. In this process, the independent humidifier (31) to the surface of the thin bamboo sheet before feeding and high pressure atomizing nozzle (32) to the surface of the thin bamboo sheet with a spray liquid flow of 2.4L / H spray mist, multiple wetting thin bamboo surface to improve the moisture content and toughness of the thin bamboo sheet. Thin bamboo sheet from the pressure roller (51) winding to the inner lining, motor (53) drive core mold (52) rotation, the thin bamboo sheet on the core mold (52) on the bending winding, the angle between the thin bamboo sheet winding tangent and the vertical central axis of the core mold is 15°, the pressure bar (62) continuously applies 0.3MPa pressure to the outer diameter of the thin bamboo sheet in the winding. When the contact surface pressure exceeds 0.3MPa, the pressure sensor controller (61) drives the pressure bar (62) to move away from the center of the core mold (52) and continues to apply pressure to the outer diameter. Until the winding process is completed. In the process of winding the thin bamboo sheet, the microwave generator (73) uniformly and quickly heats the inside and outside of the thin bamboo sheet, the heating temperature is 100℃-120℃, the heating time is 1min, the moisture content of the thin bamboo sheet is reduced and the adhesive between different layers of thin bamboo sheet is solidified. Hot air circulation machine (72) simultaneously removes the evaporated water vapor, speeds up the heating efficiency, and completes the glue setting of the bamboo winding pen barrel.

[0032] Example 2: Bamboo winding pen barrel winding and glue setting processing method

[0033] Thin bamboo sheet selection: select the thin bamboo sheet with thickness of 0.55mm-1.0mm, width of 1cm-2cm, moisture content of 11% and close to the green side, and apply glue to both sides and outer side of the thin bamboo sheet.

[0034] Core mold and equipment parameter adjustment: replace the core mold (52) with an inner diameter of 10cm, connect the power supply, adjust the wetting device (30) to spray liquid flow of 1.5L / H, the pressure device (60) to the pressure of 0.5MPa, the microwave heating temperature to 120℃-160℃, the heating time to 3min, and the motor (53) to the appropriate speed.

[0035] Bamboo winding pen barrel winding and gluing: push the movable door (71) to the appropriate position, the thin bamboo sheet first from the bottom of the independent humidifier (31) through, and then from the bottom of the first tension controller (41), above the second tension controller (42) to the bottom of the pressure roller (51). In this process, the independent humidifier (31) humidifies the surface of the thin bamboo sheet before feeding, the high-pressure atomizing nozzle (32) sprays water mist on the surface of the thin bamboo sheet between the first tension controller (41) and the second tension controller (42), directly above the second tension controller (42), and between the second tension controller (42) and the pressure roller (51), wetting the surface of the thin bamboo sheet multiple times to increase the moisture content of the thin bamboo sheet and improve its toughness. The thin bamboo sheet is transported from the pressure roller (51) to the core mold (52), and the motor (53) drives the core mold (52) to rotate to bend and wind the thin bamboo sheet thereon. The angle between the winding tangent of the thin bamboo sheet and the vertical central axis of the core mold (52) is 30°. The pressure roller (51) and the pressure rod (62) continuously apply a pressure of 0.5 MPa to multiple places on the outer diameter of the winding thin bamboo sheet to realize the pressure of the outer surface of the thin bamboo. When the contact surface pressure exceeds 0.5 MPa, the pressure rod (62) moves away from the center of the core mold (52) and continues to apply pressure to the outer diameter until the winding process is completed. During the winding process of the thin bamboo sheet, the wound thin bamboo is heated by microwaves, the heating temperature is 120℃-160℃, and the heating time is 3min, which reduces the moisture content of the thin bamboo sheet and solidifies the adhesive between different layers of thin bamboo sheets. The hot air circulating machine (72) brings out the evaporated water vapor, and the gluing and shaping of the bamboo winding pen barrel is completed.

[0036] Example 3: Bamboo winding lampshade winding and gluing shaping processing method

[0037] Thin bamboo sheet selection: select thin bamboo sheets with a thickness of 1mm-1.5mm, a width of 1.5cm-2cm, a moisture content of 13% and located between bamboo green and bamboo yellow, and apply glue to both sides and outer sides of the thin bamboo sheets.

[0038] Core mold and equipment parameter adjustment: replace the core mold with a mold with an inner diameter of 30cm, connect the power supply, adjust the liquid flow of the wetting device to 1L / H, the pressure of the pressure to 0.7MPa, the microwave heating temperature to 120℃-160℃, and the heating time to 5min, and adjust the rotation speed of the core mold to control the size of the aperture generated between the wound thin bamboo sheets.

[0039] Bamboo winding lampshade winding and gluing: the process is the same as above.

[0040] The present application can realize the processing and manufacturing of thin bamboo piece winding products with different diameters, and is a thin bamboo piece toughening, winding and curing integrated machine. The winding mold can be replaced, different molds can be matched for different products to manufacture, a plurality of different thin bamboo winding products can be produced, and the efficiency is high and the operation is convenient. The winding toughness of the thin bamboo can be effectively improved, the winding strength and processing efficiency of the bamboo winding product are improved, the processing equipment is reduced, and the winding and molding time is reduced.

Claims

1. An integrated processing device for toughening and winding / shaping thin bamboo strips, comprising: The frame (10), equipment controller (20), wetting device (30), tension control device (40), winding forming device (50), pressurizing device (60), and heating and curing device (70) are characterized in that: the equipment controller (20) monitors and controls the operating status of the entire equipment; a wetting device (30) is provided at one end of the frame (10) and between the adjacent tension control device (40); the winding forming device (50) includes a pressure roller (51), a rotating mandrel (52), and a motor (53), the motor (53) driving the mandrel (52) to rotate; the pressurizing device (60) with a built-in pressure sensor is located in the radial direction of the mandrel (52) and moves on the frame (10) through the pressure sensor controller (61); The wetting device (30) includes a front-end independent humidifier (31) and a high-pressure atomizing nozzle (32). There are two or more high-pressure atomizing nozzles (32) arranged in front and behind, located between the independent humidifier (31) and the tension control device (40), and between the tension control device (40) and the winding forming device (50). The flow rate of the liquid sprayed by the wetting device (30) is adjusted by the equipment controller (20), and the flow rate range is 0 to 2.4 L / H. It is used to wet the surface of the thin bamboo strip and improve the toughness of the thin bamboo strip. The tension control device (40) consists of a first tension controller (41) and a second tension controller (42). The thin bamboo strip is fed to the pressure roller (51) below the first tension controller (41) and above the second tension controller (42), so that the thin bamboo strip is in a taut state. The pressure roller (51) is connected to the limiting device and located between the core mold (52) and the tension control device (40). The pressure roller (51) applies a certain pressure to the winding contact surface to press the thin bamboo strips tightly onto the core mold (52). The tangent of the winding surface of the thin bamboo strips is at an angle of 15° to 45° with the vertical central axis of the core mold (52). The core mold (52) can be replaced with different molds to realize the processing of thin bamboo strip winding products of different specifications. The pressurizing device (60) includes a pressure sensor controller (61) and a pressurizing rod (62), which are arranged in four or more groups around the center of the core mold (52) and symmetrically along the radial direction of the core mold (52). The pressure sensor controller (61) is located between the frame (10) and the pressurizing rod (62). The pressurizing rod applies a pressure axial force of 0.3MPa to 1MPa to the thin bamboo strip being wound. When the pressure between the pressurizing rod (62) and the winding contact surface reaches a certain set pressure, the pressure sensor controller (61) drives the pressurizing rod (62) to move on the frame (10) until the pressure applied by the pressurizing rod (62) to the contact surface is lower than the set pressure, so as to ensure that the thin bamboo strip fits tightly against the core mold during the winding process.

2. The integrated processing device for toughening and winding / shaping thin bamboo strips according to claim 1, characterized in that, During the winding process, the pressure rod (62) simultaneously applies a certain pressure to the outer diameter of the wound bamboo strip. The pressure roller (51) tightens the bamboo strip and winds it onto the core mold (52). The pressure rod (62) compacts the bamboo strips between different layers. When the pressure on the contact surface exceeds a certain set pressure, the pressure rod (62) moves away from the core mold (52) to achieve uniform pressure on the wound product.

3. The integrated processing device for toughening and winding / shaping thin bamboo strips according to claim 1, characterized in that: The heating and curing device (70) includes a movable door (71), a hot air circulator (72), and a microwave generator (73). The movable door (71) is pushed to form a semi-closed cavity. The heating and curing device (70) can heat and cure the wound products through the microwave generator (73). The microwave heating power adjustment range on the equipment controller (20) is 10kw to 100kw, and the microwave heating time is 0min to 15min, which is used to control the degree of microwave heating. There are 6 or more hot air circulators (72) vertically distributed to output evaporated water vapor to improve heating efficiency, reduce the moisture content of bamboo strips, and achieve the purpose of gluing and shaping.

4. The integrated processing device for toughening and winding / shaping thin bamboo strips according to claim 1, characterized in that: The equipment controller (20) is used to monitor and control the operating status of the entire equipment, specifically including temperature display, microwave heating power and time setting, core mold rotation speed setting, and wetting liquid flow rate setting of the wetting device. The equipment operation includes the following steps: Step 1: Parameter setting, start the power supply, adjust the microwave heating power and time, core mold rotation speed and wetting liquid flow rate of the wetting device on the equipment controller to the appropriate parameters, and push the movable door (71) to form a semi-closed cavity; Step 2: Wetting treatment. The wetting device (30) sprays liquid with a flow rate range of 0 to 2.4 L / H. The liquid is sprayed multiple times on the surface of the thin bamboo strip through the front independent humidifier (31) and high-pressure atomizing nozzle (32) to improve the toughness of the thin bamboo strip. Step 3: Straightening and feeding. The moistened thin bamboo strips are fed from below the first tension controller (41) and above the second tension controller (42) to below the pressure roller (51), controlling the thin bamboo strips to be in a straight state. Step 4: Bending and winding. The limiting device drives the pressure roller (51) to move. The pressure roller (51) presses the thin bamboo strip and conveys it to the core mold (52). The motor (53) drives the core mold (52) to rotate, and the thin bamboo strip conveyed to the core mold (52) is wound around it to realize the winding and forming of the thin bamboo strip. Step 5: Pressing the thin bamboo. During the winding process, a certain pressure is provided. Depending on the outer diameter of the thin bamboo strip, the pressure rod (62) and the pressure roller (51) simultaneously provide a pressure of 0.3MPa to 1MPa on the outer diameter of the wound thin bamboo strip. The pressure roller (51) presses the thin bamboo strip tightly and conveys it to the core mold (52). The pressure rod (62) compacts the thin bamboo strips between different layers. When the contact surface pressure exceeds a certain set pressure, the pressure sensor controller (61) drives the pressure rod (62) and the limit device to drive the pressure roller (51) away from the core mold (52) until the contact surface pressure drops to the set pressure, so as to prevent poor bonding quality caused by uneven winding pressure during the winding process. Step 6: Curing and shaping. The wound thin bamboo strips are heated and cured by a microwave generator (73). At the same time, the hot air circulation machine (72) rotates and outputs evaporated water vapor. The microwave heating power is adjustable from 10kw to 100kw and the microwave heating time is from 0min to 15min. This is used to control the degree of microwave heating, so as to improve the heating efficiency, reduce the moisture content of the bamboo strips, and complete the gluing and shaping of the thin bamboo wound products.

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