CN104385397B - The continuous flawless flattening device of bamboo stage progressive - Google Patents

Abstract

A progressive continuous crack-free flattening device for bamboo segments. The whole device is divided into two parts installed in a high-temperature airtight room and an outdoor room at normal temperature. The device has a rotary feeder (3) and a bamboo segment conveying device from top to bottom. chamber (4) and its transmission mechanism, the upper flattening chamber (24) and the pneumatic cylinder (7) in the chamber, the arc push plate (23) and No. 1 flattening mechanism, the lower flattening chamber (15) and the indoor No. 2 and No. 3 flattening mechanisms (16, 9), chute (10), or combined into a general chamber, the support plate replaces the partition plate, and there is a rotary discharger (26) at the exit; the relevant motor and Its transmission mechanism, air pressure and hydraulic pumps and their pipelines are all installed outdoors. Using this device to flatten bamboo sections into bamboo boards is carried out in a constant heat and high humidity environment, fully softened, and three pairs of flattening devices are progressively and continuously rolled. The tooth end is hemispherical, and the pressed bamboo board has no cracks and no puncture holes, and has high heat utilization rate, high work efficiency and labor saving.

Description

Gradual continuous crack-free flattening device for bamboo segments

technical field

The invention relates to a bamboo processing device, in particular to a device for continuously flattening bamboo segments in a high-pressure and high-temperature environment.

Background technique

Bamboo sections are processed into flat plates, and the technology of using bamboo instead of wood as boards has only risen in recent years. Most of them use bamboo sections to be softened by high-temperature steaming and then immediately rolled into a pair of pressure rollers for rolling and flattening. Although "immediately ", also experienced a sudden cold, which caused the bamboo segments to shrink and harden. Some of the roll surfaces of the pressure rollers use sharp teeth, some use wedge-shaped teeth or trapezoidal teeth, which are wedged deeper into the bamboo yellow, and the external push of the wedge force can easily cause cracks in the bamboo segment. When using the bamboo board with deep tooth holes, in order to obtain a smooth and beautiful appearance, the hole marks have to be planed off, and the utilization rate of the bamboo material is reduced. The cooking and softening of the prior art is in a high-temperature environment, and the rolling is flattened in a normal temperature environment. The heated bamboo section suddenly cools down, the softening effect is greatly reduced, the heat energy is wasted, and the bamboo section is prone to cracks during flattening. Only through a pair of pressure rollers, the expansion degree is not ideal, and it needs to be flattened by heavy pressure. This kind of non-progressive flattening, gravity hard pressure is also one of the factors that are prone to cracks. In a word, the existing bamboo section flattening technology is difficult to achieve no cracks in the bamboo boards, the quality of the bamboo boards is not ideal, and the manual operation is more expensive and laborious. Labor and work efficiency are low. CN201320780729.6, CN201410072326.5 and CN201310636611.0 patent technologies are similar to the above situation.

Contents of the invention

The technical problem to be solved by the present invention is to provide a flattening device for progressively continuous bamboo segments without cracks in a high temperature and high pressure environment.

To solve this technical problem, the following technical solutions are adopted:

This bamboo section progressive continuous crack-free flattening device includes motor and its transmission mechanism, feeding and discharging mechanism, frame, pressing roller and flattening roller. There are two outdoor parts at normal pressure and temperature, and the pressure-resistant airtight room is divided into a bamboo segment transmission room, an upper leveling room and a lower leveling room, or it can be combined into a general room without partitions; the device has rotation from top to bottom. Type feeder, bamboo section transfer room, upper flattening room, lower leveling room and rotary discharger; there are partitions and blanking ports between the three chambers, or a support plate is used instead of the partition in a general room. There is an air inlet for entering saturated steam, pressure sensors are installed on the partitions between the upper and lower flattening chambers or on the blanking points on the support plates, and the bamboo section conveying room is provided with horizontal racks for laying bamboo sections to be flattened. Two chains and matching sprockets, opening on the right side of the bamboo section to be flattened, clips for clamping the weight at both ends of the lower side, the upper left side of the chain is facing the discharge port of the rotary feeder, and the right side of the chain is The bottom of the flattening chamber is directly facing the feed inlet of the upper flattening chamber; there is a No. 1 flattening mechanism in the upper flattening chamber, including pressure rollers, flattening rollers, positioning frames and hydraulic cylinders, and the outer end of the piston rod of the pneumatic cylinder on the lower left side of the upper flattening chamber It is connected with an arc-shaped push plate, and the center of the pressure roller, the middle of the opening of the bamboo section and the piston rod of the air cylinder are basically at the same level; The flattening mechanism is the same, there is a bamboo sheet guide plate near the gap between No. 1 to No. 2 and No. 2 to No. The upper mouth of the feeder, the lower side of the blanking opening on the partition between the upper and lower flattening chambers or the side of the support plate is installed with an inverted eight-shaped heavy hammer clip spring, and there is a slide between the clip spring and the rotary discharger. Groove, the rotary feeder is installed on the feed port of the bamboo segment transfer chamber, and the rotary discharger is installed under the discharge port of the lower flattening chamber; the rotary feeder and rotary discharger in this device , the sprocket for the transmission of bamboo segments and the three pairs of pressure rollers of the flattening mechanism, each with its motor and its transmission parts installed outdoors, hydraulic pumps, air pumps and their accessories installed outdoors, and the installation between indoors and outdoors Holes are fitted with gasket seals.

The diameters of the pressure rollers in the No. 1, No. 2 and No. 3 flattening mechanisms are divided into small, medium and large respectively; the cross-sectional areas of the convex teeth on the roll surface are respectively small, medium and large. The distribution of the teeth can be divided into dense, relatively dense, and sparse. The convex teeth are the combination of the arc-shaped top and the natural transition of the cylinder.

The diameters of the protruding teeth on the pressure rollers of the No. 1, No. 2, and No. 3 flattening mechanisms are 4, 5.5, and 7 mm respectively, and the height is 4-7 mm.

The beneficial effect of the present invention is that the flattening process is carried out in a high-temperature and high-humidity indoor environment with saturated steam, and the temperature is controlled at 130°C-150°C according to the age of the bamboo and the thickness of the bamboo section. Moderate transitional unfolding, no cracks on the bamboo board, high heat utilization rate, labor saving, high work efficiency, shallow tooth marks on the bamboo board, low planing loss, and good quality.

Description of drawings

Fig. 1 is a structural schematic diagram of the main components in the room of the present invention.

Fig. 2 is a left side view of Fig. 1 .

Fig. 3 is a schematic diagram of the state in which the heavy hammer clamped at both ends of the sawn bamboo section falls into the inverted splayed clamp spring.

Figures 4, 5, and 6 are schematic diagrams of the shape and distribution density of convex teeth on the roller surface of the pressure rollers of No. 1, No. 2, and No. 3 flattening mechanisms, respectively.

Figures 7, 8, and 9 are respectively the expanded views of the pressure rollers of No. 1, No. 2, and No. 3 flattening mechanisms.

detailed description

The present invention is described in detail below in conjunction with embodiment and with reference to accompanying drawing: Referring to Fig. 1, this bamboo segment progressive type continuous non-crack flattening device comprises motor and transmission mechanism thereof, feeding and discharging mechanism, frame, pressure roller and The flattening roller, the whole device is divided into two parts installed in a pressure-resistant airtight room with high pressure and high temperature and an outdoor room with normal pressure and normal temperature. The boards are separated and combined into a general room; the device has a rotary feeder 3, a bamboo section transfer room 4, an upper leveling room 24, a lower leveling room 15, and a rotary discharger 26 from top to bottom. 4. There is a partition 25 and a blanking port between 24 and 15, or a brace is used to replace the partition in a general room. There is an air inlet for saturated steam in the room, and the partition or brace between the upper and lower flattening rooms The blanking point on the plate is equipped with a pressure sensor 22, and there are two chains 5 and matching sprockets 6 that can horizontally frame the bamboo section to be flattened in the described bamboo section transmission chamber, and the right side opening of the bamboo section 1 to be flattened , there are clips 27 for clamping and hanging the weight 2 at both ends of the lower side, the upper left side of the chain is facing the blanking opening of the rotary feeder, and the lower side of the chain is facing the feeding opening of the upper flattening chamber 24; There is a No. 1 flattening mechanism in the flattening chamber 24, including a pressure roller 19, a flattening roller 18, a positioning frame 21 and a hydraulic cylinder 20. The outer end of the piston rod of the pneumatic cylinder 7 on the lower left side of the upper flattening chamber is connected with an arc-shaped push plate 23 , the center of the pressure roller, the middle part of the opening of the bamboo section, and the piston rod of the air cylinder are basically at the same level; there are No. 2 flattening mechanism 16 and No. 3 flattening mechanism 9 in the flattening chamber 15 of the lower floor, and their components are the same as those of the No. 1 flattening mechanism. In the same way, there is a bamboo guide plate 17 on the near side of the gap between No. 1 to No. 2 and No. 2 to No. 3 two pairs of pressure rollers and the flattening rollers, and the bamboo plate side of the No. The upper opening of device 26, the lower side of the blanking opening on the partition between the upper and lower floor flattening chambers or the side of the support plate is installed with an inverted figure-of-eight heavy hammer clip spring 8, and there is a gap between the clip spring and the rotary discharger. Chute 10, the rotary feeder is installed on the feed inlet of the bamboo segment transfer chamber, and the rotary feeder is installed under the discharge port of the flattening chamber of the lower floor; the rotary feeder in this device, the rotary discharge Feeder, sprocket for conveying bamboo segments and three pairs of pressure rollers of flattening mechanism, each with its motor and its transmission parts installed outdoors, hydraulic pump, air pump and its accessories installed outdoors, and the gap between indoors and outdoors Mounting through holes are fitted with gasket seals.

The diameters of the pressure rollers 19 in the No. 1, No. 2 and No. 3 flattening mechanisms are divided into small, medium and large respectively; the cross-sectional areas of the convex teeth 28 on the roll surface are divided into small, medium and large , the distribution of convex teeth can be divided into dense, relatively dense, and sparse. The convex teeth are the combination of the arc-shaped top and the natural transition of the cylinder.

The diameters of the protruding teeth 28 on the pressure rollers of the No. 1, No. 2, and No. 3 flattening mechanisms are 4, 5.5, and 7 mm respectively, and the height is 4-7 mm.

The above-mentioned three chambers can also be combined into one large chamber, and the original partition 25 is replaced by a brace (including a guide plate), so that the blanking opening on the partition does not exist. The so-called brace is a combination of a bracket and a plate body. After a big room, the three rooms that were originally divided should also be regarded as three areas in the general room.

When this device is used, select large-diameter bamboos that are 2-5 years old, cut bamboo sections according to the length requirements of the bamboo boards to be made, plan or sand the outer sections, rotary cut or mill off the inner sections and bamboo yellow, and axially saw Open a sawing kerf, and the sawing kerf of the bamboo section is towards the right side (see figure 1), respectively hang a clip 27 with a weight 2 at the two ends of the lower side of the bamboo section, first feed saturated steam into each chamber, and then Turn on the mains, start each motor, and drop them into the upper mouth of the rotary feeder 3 one by one and continuously, and after turning, the blanking exits to the upper parallel double chain 5 in the bamboo section transmission chamber 4, and the bamboo section Under the action of saturation and high-temperature steam at 130°C-150°C, the cracks in the saw kerf will increase, and they will be transmitted from left to right one by one, and then fall to the partition or support plate of the upper flattening chamber 24, the partition or The pressure sensor 22 on the supporting plate senses the pressure, transmits it to the microcomputer, and instructs the left air cylinder 7 to drive the arc-shaped push plate 23 to push the bamboo section to the side of the pressure roller of the No. 1 flattening mechanism, and the pressure roller takes advantage of the momentum to roll the open bamboo section In the gap between the pressure roller and the flattening roller, under the push of the hydraulic cylinder 20, the bamboo section is flattened for the first time, and the bamboo section is in the shape of a tile, and then it is transmitted to the No. 2 flattening mechanism along the guide plate 17. 16 to flatten again, the bamboo slices are further flattened, and then passed to No. 3 flattening mechanism 9 with the follow-up guide plate to be flattened for the last time. After collection, the stack is pressurized for a period of time and then it is ready for use. It is recommended to choose bamboo segments of young bamboo (2-3 years old), and in a fully softened environment full of saturated steam, high humidity, and temperature up to 130°C-150°C, the diameter of the pressure roller gradually increases from small to large, and the convex tooth head of the pressure roller In the case of a hemispherical shape and convex teeth gradually becoming thicker (see Figure 4-9), it is ensured that the bamboo board has no cracks.

Referring to Fig. 3, the weight 2 and the clip 27 clamped at the two ends of the bamboo segment have a clamping force slightly greater than the weight of the weight, and the weight of the weight is greater than the clamping force of the inverted figure-eight clip spring, and the gravity of the weight and the inverted The sum of the clamping force of the eight-shaped clamp spring 8 is greater than the clamping force of the clamp 27. Therefore, when the bamboo segment, together with the clamp and the weight, falls onto the partition or support plate at the bottom of the upper flattening chamber, it is pushed back by the arc. Push it to the near side of the pressure roller of the No. 1 flattening mechanism, and the weights on both sides fall from the blanking port or the support plate by their gravity, and are clamped by the corresponding inverted eight-shaped clip springs one by one. When entering between the pressure roller and the flattening roller, the weight and the clip are clamped and pulled off by the inverted splayed clip spring, and then flow out through the chute 10 and the rotary discharger 26 for collection and reuse.

Three pairs of flattening mechanisms are driven by total motor 11, drive sprocket shaft rotation through belt pulley 12 with belt 13, three linear speeds equate as the pressure roller of driving roller, all are driven by sprocket wheel and chain 14.

The rotary feeder 3 and the rotary discharger 26 have the same structure, the same working principle and procedures, but the installation positions are different. They are a feeder and discharger that acts as a barrier between normal pressure and high pressure, normal temperature and high temperature. , there are textbooks, which are known technologies and are not described in detail.

Depending on the age, wall thickness, and speed of the flattening process of the raw bamboo section, it should be matched by adjusting the amount or time or temperature of the saturated steam.

Claims (3)

1. the continuous flawless flattening device of bamboo stage progressive, comprise motor and transmission mechanism, charging and discharging mechanism, frame, pressure roller and nip rolls, it is characterized in that whole device is divided into the outdoor two parts of pressure-tight indoor and the normal pressure and temperature being installed on high pressure-temperature, pressure-tight room is divided into bamboo section transfer chamber, flattening room, upper strata and lower floor flatten room, or separates without dividing plate and be combined into a total room, this device has swinging feeder (3), bamboo section transfer chamber (4), flattening room, upper strata (24), lower floor to flatten room (15) and swinging discharger (26) from top to bottom successively, three Room (4, 24, 15) dividing plate (25) and blanking port is had between, or substitute dividing plate at a total indoor fagging, there is the air inlet into saturated vapor indoor, levels flattens the dividing plate between room or the discharging point on fagging is provided with pressure sensor (22), have in described bamboo section transfer chamber and transverse strands can put two chains (5) and supporting sprocket wheel (6) for the treatment of flattening bamboo section, treat flattening bamboo section (1) right openings, two ends, downside respectively have folder to hang the clip (27) of weight (2), the upper upright blanking port to swinging feeder on the left of chain, lower Founder on the right side of chain is to the charging aperture of flattening room, upper strata (24), a flatten mechanism is had in flattening room, upper strata (24), comprise pressure roller (19), nip rolls (18), locating rack (21) and hydraulic cylinder (20), pneumatic cylinder (7) the piston rod outer end of flattening room, upper strata lower left side is connected with arc push pedal (23), in the middle part of pressure roller center, bamboo section opening and pneumatic cylinder piston rod be substantially in same level height, lower floor flattens in room (15) No. two flatten mechanisms (16) and No. three flatten mechanisms (9), its assembly is identical with a flatten mechanism, the gap nearside of No. one to No. two and No. two to No. three two pairs of pressure rollers and nip rolls has bamboo chip guide plate (17), No. three flatten mechanisms go out suitable for reading just to the swinging discharger (26) of below of bamboo clappers side, levels flattens on the downside of the blanking port on the dividing plate between room or fagging side is provided with herringbone weight clip spring (8), chute (10) is had between this folder spring and swinging discharger, swinging feeder is arranged on the charging aperture of bamboo section transfer chamber, under swinging discharger is arranged on the discharging opening of lower floor's flattening room, the pressure roller of the sprocket wheel that the swinging feeder in this device, swinging discharger, bamboo section transmit and three pairs of flatten mechanisms, it is respectively had to be arranged on outdoor motor and driving member thereof, hydraulic pump and pulsometer and accessory thereof are installed on outdoor, and the installation through hole between indoor and outdoor is furnished with bedding and padding seal.

2. the continuous flawless flattening device of bamboo stage progressive as claimed in claim 1, it is characterized in that the diameter of the pressure roller (19) in described No., No. two and No. three flatten mechanisms have respectively little, in, large point; The cross-sectional area of its roll surface double wedge (28) have respectively little, in, large point, the distribution of double wedge have respectively close, closeer, dredge point, double wedge is the combination of cambered top end and the natural transition of cylinder.

3. the continuous flawless flattening device of bamboo stage progressive as claimed in claim 2, it is characterized in that the diameter of the double wedge (28) on described No. one, No. two, No. three flatten mechanism pressure roller roll surfaces be respectively 4,5.5,7mm, be highly 4-7mm.