CN204172154U - One cuts open bamboo machine thick bamboo tube centering device - Google Patents

Abstract

The utility model discloses a centering device for a bamboo tube of a bamboo cutting machine capable of synchronously centering a centering bar, which comprises a circular cutter head (1) provided with a bamboo cutting knife, and is characterized in that the circular cutter head (1) The center is provided with a mandrel (6), and one end of the mandrel (6) is provided with a front cone (8), and at least three centering strips (2) are evenly distributed on the end of the front cone (8) near the mandrel (6). A reset mechanism is respectively arranged between the centering bar (2) and the front cone (8), and a sliding sleeve (13) is set on the mandrel (6). There is a pull rod (12), one end of the pull rod (12) is hinged to the middle of the centering strip (2), and the other end is hinged to the sliding sleeve (13). The utility model has the advantages of simple structure, convenient operation, and easy centering, and will not Unevenness leads to "eccentric" phenomenon, high centering accuracy, greatly improving work efficiency and reducing production costs.

Description

A centering device for bamboo tubes of a bamboo cutting machine

technical field

The utility model relates to a bamboo material processing equipment, in particular to a bamboo cutting machine, in particular to a bamboo tube centering device of the bamboo cutting machine.

Background technique

In recent years, my country's timber stock has been declining, but the area of bamboo forests has been increasing at a rate of 3% per year. The area of my country's artificial bamboo forests ranks first in the world, mainly planting moso bamboo. With the development of social economy, the development of bamboo industry has been paid more and more attention and widely concerned. Bamboo has a special structure with bamboo joints and hollows, and is prone to insects, mildew, and cracks. The characteristics of bamboo are quite different from those of wood. Therefore, whether it is its processing technology or processing machinery, bamboo and wood are very different. Due to the limitation of factors such as technology and cost, existing bamboo machineries are mainly simply transformed directly from woodworkers. Using these machines to process bamboo will have a certain degree of adverse effects on its product quality, efficiency, cost, and equipment reliability, durability, and automation. Bamboo machinery research and development and the introduction of new technology systems have not yet formed, resulting in the entire bamboo machinery manufacturing technology is still at the middle and lower level, which is increasingly unable to meet the needs of modern high-quality bamboo product production. With the development of my country's bamboo industry, new requirements have been put forward for bamboo processing machinery. At present, the research of my country's bamboo industry mainly focuses on improving the comprehensive utilization rate of materials and technological innovation, and there are relatively few researches on bamboo processing machinery. The development of modern bamboo machinery is of great significance to the development of my country's bamboo processing industry and even my country's modern forestry. Substituting bamboo for wood is one of the main purposes of bamboo processing. After decades of hard work, my country has become a country with a high level of bamboo processing technology and the largest variety of products, but the current equipment and technology are increasingly unsuitable for the modern bamboo industry. The demand for development and the aging of equipment have led to low utilization of raw materials, high production costs, low profits, and low product competitiveness, which has hindered the development of my country's forestry to a certain extent.

In the bamboo product processing technology, the first process is often to split a certain length of bamboo tube into equal-width bamboo slices with a bamboo splitter. Existing bamboo cutting machine is generally made up of frame, propulsion device, drive unit, clamping centering device, five parts of rotary cutter head device and chain sprocket etc. The driving device is installed in the lower part of the frame, and its power can be output in different directions; there are two longitudinal guide rails parallel to each other on the upper part of the frame, and the propulsion device can move along the guide rails; after a chain is engaged with the output sprocket of the driving device, , and then mesh with the sprockets at both ends of the frame, and then fix both ends on the propulsion device, so the rotation of the drive device output sprocket in two different directions will drive the propulsion device to move along the guide rail of the frame to realize the work progress Giving and returning; A bamboo cutter is installed on the upper end of the frame. In the same group of bamboo splitting knives (generally 6-8 pieces), the number of blades of each knife is different, and they are evenly distributed to each other, so as to adapt to bamboo tubes of different diameters and slice widths. When cutting bamboo, the propulsion device is driven by the motor to reciprocate continuously. The operator must align the small end of the bamboo tube with the bamboo splitting knife during the interval when the propulsion device moves away from the bamboo splitting knife, and ensure that the center of the bamboo tube is aligned with the center of the bamboo splitting knife. Centering; when the propulsion device moves to the bamboo splitting knife, the bamboo tube is inserted into the bamboo splitting knife under the thrust of the propulsion device, and is split into several strips along the longitudinal fiber direction of the bamboo tube.

It can be seen that in order to divide the bamboo tube into bamboo strips of a specified width, the operator needs to manually cover the bamboo tube on the centering cone at the front end of the bamboo cutting knife when cutting the bamboo, and the size of the centering cone is determined according to the number of different blades in the bamboo cutting knife. The minimum diameter in the compatible bamboo tube inner diameter range is determined, so this mechanism cannot accurately center the larger bamboo tube in the predetermined tool adaptation range. On the one hand, this increases the difficulty of operation and potential safety hazards for the workers. On the other hand, if the operator is manually inaccurate, the width of the split bamboo strips will be unequal, resulting in material waste. In response to the above technical problems, there are some bamboo tube centering devices in China, but their structures are complex and are greatly affected by the quality of the springs. They are prone to "eccentricity" due to uneven spring elasticity, low centering accuracy, high production costs, and long service life. Low, not suitable for promotional applications.

Contents of the invention

The purpose of the utility model is to provide a centering device for a bamboo tube of a bamboo splitting machine which can make the centering strip synchronously centered.

The utility model realizes the purpose of the invention by adopting the following technical scheme, a bamboo tube centering device for a bamboo splitting machine, which includes a circular cutter head provided with a bamboo cutting knife, a mandrel is arranged in the center of the circular cutter head, and one end of the mandrel is provided with a Front cone, at least three centering strips are evenly distributed on the end of the front cone close to the mandrel, reset mechanisms are respectively set between each centering strip and the front cone, sliding sleeves are set on the mandrel, and each centering strip and sliding sleeve A tie rod is arranged between them, one end of the tie rod is hinged in the middle of the centering bar, and the other end is hinged on the sliding sleeve.

The reset mechanism described in the utility model includes a limit cone surface, which is arranged on one end of the front cone close to the mandrel, and the limit cone surface is respectively provided with hinged plates corresponding to the centering bars, and each hinge plate Both are hinged with the centering bar through the pin shaft, and the torsion spring that makes the centering bar and the hinge plate tightly connected is set on the pin shaft. At least three centering strips form a cone with a small front and a large rear that is concentric with the front cone.

The reset mechanism described in the utility model includes a limit cone surface and a reset spring installed between the circular cutter head and the sliding sleeve. The limit cone surface is arranged on one end of the front cone close to the spindle, and the limit cone Hinged plates corresponding to the centering strips are respectively arranged on the surface, and each hinged plate is hinged to the centering strip through a pin shaft.

The utility model is suitable for bamboo tubes of different specifications, and the included angle between the limiting cone surface and the mandrel is 110°-150°.

In order to improve the service life of the utility model, the mandrel, the front cone and the hinged plate are of an integrated structure.

Due to the adoption of the above-mentioned technical scheme, the utility model better realizes the purpose of the invention. It has simple structure, convenient operation, easy centering, no "eccentricity" phenomenon caused by uneven spring elasticity, high centering precision, and greatly improved efficiency and reduce production costs.

Description of drawings

Fig. 1 is the structural representation of embodiment 1;

Fig. 2 is the structural representation of embodiment 2;

Fig. 3 is a working state diagram of embodiment 1.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Example 1:

As can be seen from Fig. 1 and Fig. 3, a bamboo tube centering device of a bamboo splitting machine comprises a circular cutterhead 1 provided with a bamboo cutter, the center of the circular cutterhead 1 is provided with a mandrel 6, and one end of the mandrel 6 is provided with a front cone 8. At least three centering strips 2 (three in this embodiment) are evenly distributed on the end of the front cone 8 close to the mandrel 6, and a reset mechanism is respectively provided between each centering strip 2 and the front cone 8, and the mandrel 6 The upper sleeve is provided with a sliding sleeve 13, and a pull rod 12 is respectively arranged between each centering strip 2 and the sliding sleeve 13, and one end of the pull rod 12 is hinged on the middle part of the centering strip 2, and the other end is hinged on the sliding sleeve 13.

The reset mechanism described in the utility model includes a limit cone surface 7, which is arranged on one end of the front cone 8 close to the mandrel 6, and the limit cone surface 7 is respectively provided with a hinge corresponding to the centering bar 2. Plate 4, each hinged plate 4 is hinged with the centering bar 2 through the pin shaft 5 (there are three hinged plates 4 in this embodiment), and the pin shaft 5 is set on the pin shaft 5 to make the centering bar 2 and the hinged plate 4 tightly connected. Torsion spring 3, when the centering strip 2 is not loaded, one end thereof fits with the limiting cone surface 7, so that at least three centering strips 2 (three in the embodiment) form a small front and a large rear. Cone 8 concentric cones.

The utility model is applicable to bamboo tubes of different specifications, and the included angle between the limiting cone surface 7 and the mandrel 6 is 110°-150° (110° in this embodiment).

In order to improve the service life of the utility model, the mandrel 6, the front cone 8 and the hinged plate 4 are of an integrated structure.

When the utility model is used, the bamboo tube 9 is set on the front cone 8, and the bamboo tube 9 is pushed to the utility model by the propulsion device 10 when cutting the bamboo, and the inner wall of the bamboo tube 9 starts to contact the centering bar 2; The limiting function of the cone surface 7 makes the three centering strips 2 form a cone with a small front and a large rear. When the centering strips 2 are all in contact with the inner wall of the bamboo tube 9, the inner wall of the bamboo tube 9 will force the centering strips 2 to go around the pin. Axle 5 swings synchronously, to adapt to the variation of different bamboo tubes 9 small head inner diameters and support bamboo tubes 9 before cutting bamboo. The connecting rod 12 connects the centering bar 2 and the sliding sleeve 13 to ensure that the centering bar 2 realizes synchronous centering without "eccentricity" caused by uneven spring elasticity. When the centering bar 2 entered the bamboo tube 9 completely, the centering bar 2 stopped swinging, and now the bamboo tube 9 was concentric with the utility model; as the propulsion device 10 continued to move forward, the bamboo tube 9 was pushed onto the blade of the bamboo cutter, At the beginning of cutting the bamboo, the bamboo cutting knife divides the bamboo tube 9 into several equal parts along the longitudinal fiber direction of the bamboo tube 9, and removes the bamboo partition 11 through the front cone 8. Heart bar 2 resets by torsion spring 3 and enters the next cycle.

Example 2:

It can be seen from Fig. 2 that the reset mechanism described in this embodiment includes a limiting cone surface 7, a return spring 14 installed between the circular cutterhead 1 and the sliding sleeve 13, and the limiting cone surface 7 is arranged on the front cone 8. On one end close to the mandrel 6, hinged plates 4 corresponding to the centering bar 2 are respectively provided on the limit cone surface 7 (there are three hinged plates 4 in this embodiment), and each hinged plate 4 passes through the pin shaft 5 Hinged with centering bar 2.

After the bamboo cutting in this embodiment is completed, the propulsion device 10 runs in reverse, and the centering bar 2 is reset by the return spring 14 to enter the next cycle. The rest are the same as embodiment 1.

Claims (6)

1. a kind of splitting bamboo machine bamboo tube centering device, it comprises the circular cutter head (1) that is provided with splitting bamboo knife, it is characterized in that: the circular cutter head (1) center is provided with mandrel (6), and mandrel (6) ) is provided with a front cone (8) at one end, and at least three centering strips (2) are evenly distributed on the end of the front cone (8) close to the mandrel (6). There are respectively reset mechanisms between them, the mandrel (6) is covered with a sliding sleeve (13), and each centering bar (2) and the sliding sleeve (13) are respectively provided with a pull rod (12), and one end of the pull rod (12) is hinged. In the middle part of the centering bar (2), the other end is hinged on the sliding sleeve (13). 2. The centering device for the bamboo tube of the bamboo cutting machine according to claim 1, characterized in that: the reset mechanism includes a limiting cone surface (7), and the limiting cone surface (7) is arranged near the front cone (8). On one end of the mandrel (6), a hinged plate (4) corresponding to the centering bar (2) is respectively provided on the limit cone surface (7), and each hinged plate (4) is connected with the pin shaft (5) and The centering bar (2) is hinged, and the pin shaft (5) is covered with a torsion spring (3) that securely connects the centering bar (2) to the hinge plate (4). The centering bar (2) is not loaded Its one end fits with the limit cone surface (7) during load, makes at least three centering strips (2) form the concentric cone with the front cone (8) small at the front and large at the rear. 3. The bamboo tube centering device of the bamboo cutting machine according to claim 1, characterized in that: the reset mechanism includes a limiting cone (7), which is installed on the circular cutter head (1) and the sliding sleeve (13) Between the return spring (14), the limit cone surface (7) is set on the front cone (8) near the end of the mandrel (6), and the limit cone surface (7) is respectively provided with a centering The hinged plates (4) corresponding to the bars (2), each hinged plate (4) is hinged with the centering bar (2) through pin shafts (5). 4. The bamboo tube centering device of the bamboo cutting machine according to claim 2 or 3, characterized in that: the angle between the limiting cone surface (7) and the mandrel (6) is 110°-150° . 5. The centering device for the bamboo tube of the bamboo cutting machine according to claim 2 or 3, characterized in that: the mandrel (6), the front cone (8), and the hinged plate (4) are of an integrated structure. 6. The centering device of the bamboo tube of the bamboo cutting machine according to claim 4, characterized in that: the mandrel (6), the front cone (8), and the hinged plate (4) are of an integrated structure.