Movable cutter for removing bamboo partitions

Abstract

According to the movable cutter for removing the bamboo partition, the cutter structure that a plurality of movable cutters are movably connected to the peripheral side of a cutter bar is ingeniously provided, and the movable cutters can adapt to bamboo tubes with different bending conditions by combining with cooperation of an elastic assembly, a limiting assembly, the movable cutters and the cutter bar; according to the scheme, the multiple movable cutters are all provided with the extending parts, after the extending parts are in constraint fit with the limiting pins of the limiting assembly, the abnormal situation that the movable cutters are disengaged and fall off can be avoided, each pair of elastic pieces in the connecting groove in the cutter bar corresponds to each movable cutter, under the structural form, the stress of the multiple movable cutters is independent, and the movable cutters are not prone to falling off. When the movable cutter stretches into the bamboo tube, the movable cutter can conduct self-adaptive movement in the connecting groove according to the external acting force borne by the movable cutter, that is, the movable cutter is partially compressed into the connecting groove in the cutter bar in a self-adaptive mode based on the external force borne by the movable cutter, and therefore the movable cutter can better conduct bamboo partition cleaning on the irregular bent bamboo tube.

Description

Technical Field

[0001] The invention relates to the field of bamboo processing tools, in particular to a movable tool for removing bamboo septa. Background Art

[0002] Bamboo is widely used in many fields due to its small shrinkage, high tensile strength and compressive resistance along the grain. However, due to the structural characteristics of bamboo itself, it needs to be pre-processed by removing internal bamboo partitions and cutting before being processed into bamboo products. Among them, because the bamboo partitions are located inside the bamboo tube of the bamboo material, when processing the bamboo tube, it is often necessary to use external auxiliary tools to penetrate into the bamboo tube to destroy or modify the bamboo partitions (or bamboo knots) so as to achieve pre-treatment of the inside of the bamboo tube without damaging the main body of the bamboo tube. In order to improve processing efficiency and flexibility, many documents currently disclose solutions for assisting the removal of bamboo partitions and bamboo knots, and there are also some bamboo partition cleaning tools on the market. Among the disclosed documents, Chinese patent applications CN201710542600.4 and CN201921716857.8 both disclose a device that can open up bamboo partitions. For such devices, their There are often high requirements for the bamboo to be processed. For example, the main body of the bamboo is required to be a straight structure. However, when the bamboo grows naturally, it will have a certain curvature. This makes it difficult for most of the devices currently on the market or disclosed in the literature to adapt to bamboo with a certain curvature, especially bamboo with continuous curvature. For example, when the main body of the bamboo has irregular curvature, it is difficult for the device to penetrate into the bamboo tube or the stroke is not ideal, or the cleaning effect of the bamboo partition on the inner wall of the bamboo tube is poor and the efficiency is low. Therefore, how to adapt to the internal structure of irregularly curved bamboo and take into account both processing efficiency and processing effect is a research topic with positive practical significance and industrial application value. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide a movable tool for removing bamboo partitions, which is reliable in implementation, flexible in application and can adapt to the internal structure of irregularly curved bamboo to a certain extent, so as to effectively clean the bamboo partitions inside the bamboo.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the present invention is:

[0005] A movable cutter for removing bamboo septa, which is used to penetrate into a bamboo tube to remove the bamboo septa in the bamboo tube, and comprises:

[0006] Tool bar;

[0007] There are multiple movable knives, all of which are movably connected to the outer peripheral side of the knife rod;

[0008] A limiting assembly connected to the knife bar and the plurality of movable knives, wherein the limiting assembly is used to limit the movable knives from being separated from the knife bar;

[0009] An elastic component is arranged on the knife rod and is respectively connected to the plurality of movable knives; the elastic component is used to provide a repulsive force, and has a first state and a second state that cooperate with the movable knives;

[0010] Wherein, in the first state, the repulsive force provided by the elastic component causes the movable knife to unfold in a direction away from the knife rod;

[0011] In the second state, the movable knife is acted upon by an external force greater than the repulsive force, so that the elastic component is compressed and the movable knife is retracted in a direction close to the knife rod.

[0012] As a possible implementation mode, further, the outer peripheral side of the knife rod described in this scheme corresponds to the multiple movable knives and is provided with connecting grooves that match one by one therewith, and an extension portion is provided on one side of the middle part of the movable knife, and the extension portion can be movably inserted into the connecting groove corresponding to the movable knife.

[0013] As a preferred embodiment, preferably, the limit assembly of this solution is connected in the connecting groove of the knife rod and cooperates with the extension portion of the movable knife to limit the movable knife from detaching from the knife rod.

[0014] As a preferred embodiment, preferably, the extension portion of the present invention is provided with a waist-shaped groove; the limiting component includes:

[0015] There are multiple limit pins, which correspond to the connecting grooves of the knife rod one by one. The limit pins are inserted into the connecting groove and pass through the waist groove of the movable knife to movably connect the movable knife to the knife rod.

[0016] As a preferred embodiment, preferably, the elastic component of this solution includes:

[0017] There are multiple pairs of elastic members, and each pair of elastic members corresponds to a connecting groove on the knife rod. The pair of elastic members corresponding to the connecting groove are respectively arranged at both ends of the connecting groove. One end of the elastic member is fixed in the connecting groove, and the other end thereof is against the movable knife movably connected to the connecting groove, so that the movable knife is repelled by the repulsive force of the elastic member and unfolds in the direction away from the knife rod.

[0018] As a preferred embodiment, preferably, the elastic member in this solution is a spring;

[0019] The length of the connecting groove is greater than the length of the movable knife, and the length of the extending portion beyond one side of the middle of the movable knife is less than the depth of the connecting groove;

[0020] When the movable knife is extended in a direction away from the knife rod due to the repulsive force of the elastic member, the other side of the movable knife is higher than the outer surface of the knife rod and / or when the movable knife is acted upon by an external force greater than the repulsive force, causing the movable knife to be retracted to the maximum extent in a direction approaching the knife rod, the other side of the movable knife is higher than the outer surface of the knife rod.

[0021] As a preferred embodiment, the movable knife in this scheme preferably includes a knife body and a scraper, the extension portion is arranged at the middle of one side of the knife body, and the scraper is arranged at the other side of the knife body and is used to scrape the inner wall of the bamboo tube or the bamboo partition inside the bamboo tube.

[0022] As a preferred embodiment, preferably, the plurality of movable knives in this solution are divided into two groups, the number of movable knives in each group is greater than 1, one group of movable knives is movably connected to the outer peripheral side of one end of the knife rod, which is set as a movable front knife group, one end of the movable knives of the movable front knife group extends along its length direction and exceeds one end of the knife rod, and the other group of movable knives is movably connected to the outer peripheral side of the other end of the knife rod, which is set as a movable rear knife group;

[0023] The projection contours of the movable knives of the front movable knife group and the rear movable knife group along the axial direction of the knife rod do not touch each other.

[0024] As a preferred embodiment, preferably, a plurality of convex teeth are provided on the other side of the blade body in this embodiment, and the plurality of convex teeth are arranged at intervals along the length direction of the blade body. The scraper is arranged on one of the convex teeth and has a blade portion higher than the convex tooth.

[0025] As a preferred embodiment, preferably, the movable front knife group described in this scheme includes two pairs of movable knives, which are a pair of first movable knives and a pair of second movable knives. The pair of first movable knives and the pair of second movable knives are both movably connected to each other on the outer peripheral side of one end of the knife rod. The ends of the pair of first movable knives and the pair of second movable knives that extend beyond one end of the knife rod are both arc-shaped structures, and the length of one end of the pair of first movable knives extending beyond one end of the knife rod is less than the length of one end of the pair of second movable knives extending beyond one end of the knife rod.

[0026] As a preferred embodiment, preferably, the movable rear knife group described in this scheme includes two pairs of movable knives, which are a pair of third movable knives and a pair of fourth movable knives respectively. The pair of third movable knives and the pair of fourth movable knives are relatively connected to the outer peripheral side of the other end of the knife rod in pairs or staggered in pairs. At least part of the third movable knife and / or the fourth movable knife is an arc-shaped structure near the end of the movable front knife group.

[0027] By adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: the present scheme ingeniously proposes a tool structure in which a plurality of movable knives are movably connected on the outer peripheral side of a tool rod, and the combination of an elastic component, a limit component, a plurality of movable knives and a tool rod can make the movable tool adapt to bamboo tubes with different bending conditions, and enable the movable knife to better clean the bamboo partitions inside the bamboo tube; in the present scheme, there are a plurality of movable knives movably connected on the tool rod, and the plurality of movable knives are all provided with an extension part, which can prevent the movable knife from falling off abnormally after being constrained and matched with the limit pin of the limit component, and at the same time, each pair of elastic members in the connecting groove on the tool rod is Corresponding to each of the movable knives, under this structural form, the forces applied to the multiple movable knives are independent. Therefore, when the movable knife probes into the interior of the bamboo tube, the movable knife will adaptively move in the connecting groove according to the external force applied thereto. When clearing the bamboo partitions inside a non-straight bamboo tube, the movable knife will adaptively compress into the connecting groove on the knife rod based on the external force applied thereto during the process of probing into the interior of the bamboo tube, so that the movable knife can better clean the bamboo partitions of the irregularly curved bamboo tube. In addition, due to the presence of a pair of elastic parts, the side of the movable knife close to the inner wall of the bamboo tube will maintain partial contact with the bamboo tube, thereby improving the cleaning effect of the bamboo partitions. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 This is one of the three-dimensional perspective diagrams of the brief implementation structure of the movable tool of this scheme;

[0030] Figure 2 This is the second three-dimensional perspective diagram of the brief implementation structure of the movable tool of this scheme;

[0031] Figure 3 It is a schematic diagram of the exploded structure of the movable tool of this scheme;

[0032] Figure 4 This is one of the two-dimensional perspective diagrams of the brief implementation structure of the movable tool of this scheme;

[0033] Figure 5 yes Figure 4 A schematic cross-sectional view of the structure shown in the AA direction;

[0034] Figure 6 yes Figure 4 A schematic cross-sectional view of the structure shown in the BB direction;

[0035] Figure 7 It is a schematic diagram of a cutaway view of a simplified implementation structure of the movable tool of this scheme;

[0036] Figure 8 It is one of the three-dimensional perspective diagrams of the simplified implementation structure of the tool bar of the movable tool of this scheme;

[0037] Fig. 9 It is a schematic diagram of an implementation structure of a plurality of movable knives of the movable knife of the present invention, which respectively shows the implementation structures of the first movable knife, the second movable knife, the third movable knife and the fourth movable knife;

[0038] Fig.10 It is a schematic diagram showing that the movable cutter of the present scheme has penetrated into the bamboo tube and has not yet damaged the bamboo partition when it is implemented and applied;

[0039] Fig.11 It is a schematic diagram of the movable cutter of the present invention penetrating into the bamboo tube and destroying the bamboo partition when the movable cutter is used in practice. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present invention, but are not intended to limit the scope of the present invention. Similarly, the following examples are only partial embodiments of the present invention rather than all embodiments, and all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0041] like Figures 1 to 11 As shown in FIG. 1 , the present embodiment provides a movable knife 200 for removing bamboo partitions, which is used to penetrate into a bamboo tube 500 to remove bamboo partitions 501 in the bamboo tube 500, and includes:

[0042] Tool bar 100;

[0043] There are multiple movable knives 200, all of which are movably connected to the outer peripheral side of the knife rod 100;

[0044] A limiting assembly 300, connected to the knife bar 100 and the plurality of movable knives 200, the limiting assembly 300 is used to limit the movable knives 200 from being separated from the knife bar 100;

[0045] The elastic component 400 is arranged on the knife rod 100 and is respectively connected to the plurality of movable knives 200; the elastic component 400 is used to provide a repulsive force, and has a first state and a second state that cooperate with the movable knives 200;

[0046] In the first state, the repulsive force provided by the elastic component 400 causes the movable knife 200 to unfold in a direction away from the knife rod 100;

[0047] In the second state, the movable knife 200 is acted upon by an external force greater than the repulsive force, so that the elastic component 400 is compressed, and the movable knife 200 is retracted in a direction approaching the knife rod 100 .

[0048] In this solution, through the cooperation of the elastic component 400 and the plurality of movable knives 200, when the movable knife 200 penetrates into the bamboo tube 500, the repulsive force provided by the elastic component 400 can be used to cause the movable knife 200 to unfold in a direction away from the knife rod 100, so that the movable knife 100 can better contact the bamboo partition 501 in the bamboo tube 500, thereby destroying and removing the bamboo partition 501.

[0049] Focus on combination Figure 3 , Figure 5 , Figure 6 , Figure 7 As shown, in order to increase the range of folding and unfolding of the movable knife 100, as a possible implementation mode, further, the outer peripheral side of the knife rod 100 described in this scheme corresponds to the plurality of movable knives 200 and is provided with a connecting groove 101 that matches one to one with it, and an extension portion 204 is provided on one side of the middle portion of the movable knife 200, and the extension portion 204 can be movably inserted into the connecting groove 101 corresponding to the movable knife 200; preferably, the length of the connecting groove 101 is greater than the length of the movable knife 200, and the length of the extension portion 204 exceeding the middle side of the movable knife 200 is less than the depth of the connecting groove 101.

[0050] In the above-mentioned implementation structure, the connecting groove 101 can be used to allow the movable knife 100 to be partially pressed into the connecting groove 101 when subjected to an external force, so that the movable knife of this solution can better adapt to bamboo tubes 500 with different inner diameters.

[0051] Correspondingly, the extension portion 204 of the present invention is provided with a waist-shaped groove 2041; the limiting assembly 300 is connected to the connecting groove 101 of the knife rod 100 and cooperates with the extension portion 204 of the movable knife 200 to limit the movable knife 200 from being separated from the knife rod 100; preferably, the limiting assembly 300 includes:

[0052] There are multiple limit pins 301, and the multiple limit pins 301 correspond to the connecting grooves 101 of the knife rod 100 one by one. They are inserted into the connecting grooves 101 and pass through the waist-shaped grooves 2041 of the movable knife 200 to movably connect the movable knife 200 to the knife rod 100.

[0053] In addition, refer to Figure 7 As shown, when the two movable knives 200 on the knife rod 100 are positioned relative to each other, the extension groove 1012 can be further provided so that the extension portion 204 can be further inserted into the extension groove 1012 to increase the depth of the movable knife 100 retracted into the connecting groove 101, and the extension portions 204 between different movable knives 200 can be staggered to avoid interference in movement.

[0054] Focus on combination Figure 1 , Figure 2 , Figure 3 , Figure 8 As shown, in order to prevent the end of the limit pin 301 from being exposed on the surface of the tool rod 100 and affecting the use of the movable tool (for example, the limit pin 301 is loosened due to a collision), in this embodiment, the tool rod 100 is provided with a mounting hole 102 corresponding to the insertion position of the limit pin 301, which allows the end of the limit pin 301 to be immersed in the outer surface of the tool rod 100.

[0055] Focus on combination Figure 3 , Figure 5 , Figure 6 As shown, in terms of the structure of the elastic component 400, as a preferred embodiment, preferably, the elastic component 400 of this solution includes:

[0056] The elastic member 401 is a plurality of pairs and each pair of elastic members 401 corresponds to a connecting groove 101 on the knife rod 100. The pair of elastic members corresponding to the connecting groove 101 are respectively arranged at both ends of the connecting groove 101. One end of the elastic member is fixed in the connecting groove 101, and the other end thereof is against the movable knife 200 movably connected to the connecting groove 101, so that the movable knife 200 is subjected to the repulsive force of the elastic member 401 and is expanded in the direction away from the knife rod 100.

[0057] As a preferred implementation mode, preferably, the elastic member 401 described in this solution is a spring.

[0058] In this solution, an installation groove 1011 can be provided in the connecting groove 101 corresponding to the end of the elastic member 401 to position and install one end of the elastic member 401 (such as a spring), and the side of the movable knife 200 opposite to the elastic member 401 can also be adaptively provided with a structure that cooperates with the elastic member 401, or directly contacts with the elastic member 401. When the elastic member 401 is a spring, the end of the spring away from the connecting groove 101 abuts against the movable knife 200.

[0059] Taking the elastic member 401 as a spring as an example, in the present solution, the repulsive force generated by the spring on the movable knife 200 can make the movable knife 200 in the initial state, and the multiple movable knives 200 on the knife rod 100 are in an unfolded state, and when some movable knives 200 are subjected to external force, they will adaptively compress the spring to achieve the effect of being retracted in the connecting groove 101, so that the movable knife can adapt to bamboo tubes 500 with different inner diameters.

[0060] In addition to the springs mentioned above, the elastic member of the present invention may also be other components with elastic force; at the same time, the installation position of the elastic member 401 is not limited to being installed in the connecting groove 101, and it may also be installed at other positions on the knife rod 100 to achieve a comparable effect.

[0061] In the present solution, in order to prevent the movable knife 200 from being completely immersed in the connecting groove 101 and thus being unable to intervene in the cleaning work of the bamboo partition 501, the depth of the connecting groove 101 is smaller than the width of both sides of the movable knife 200, that is, when the movable knife 200 is extended in a direction away from the knife rod 100 by the repulsive force of the elastic member 401, the other side of the movable knife 200 is higher than the outer surface of the knife rod 100 and / or when the movable knife 200 is acted upon by an external force greater than the repulsive force, so that the movable knife 200 is retracted to the maximum extent in a direction approaching the knife rod 100, the other side of the movable knife 200 is higher than the outer surface of the knife rod 100.

[0062] In this solution, in order to enable the movable knife 100 to better clean the bamboo partition 501 inside the bamboo tube 500 and the inner wall of the bamboo tube 500, as a preferred embodiment, preferably, the movable knife 200 in this solution includes a knife body 201 and a scraper 203, the extension portion 204 is arranged at the middle of one side of the knife body 201, and the scraper 203 is arranged on the other side of the knife body 201, and is used to scrape the inner wall of the bamboo tube 500 or the bamboo partition 501 inside the bamboo tube 500.

[0063] In addition, as a preferred embodiment, preferably, a plurality of convex teeth 202 are provided on the other side of the blade body 201 in the present embodiment, and the plurality of convex teeth 202 are arranged at intervals along the length direction of the blade body 201. The scraper 203 is arranged on one of the convex teeth 202 and has a blade portion higher than the convex tooth 202.

[0064] With the movable knife 200 of this structural form, when the movable knife tool is inserted into the bamboo tube 500, the repulsive force generated by the elastic member 401 on the movable knife 200 can make the movable knife 200 stick to the inner wall of the bamboo tube 500, and at least part of the convex teeth 202 on the movable knife 200 contact the inner wall of the bamboo tube 500 or the bamboo partition 501 to generate a force. At the same time, the scraper 203 on the movable knife 200 will also generate a cutting force on the inner wall of the bamboo tube 500 or the bamboo partition 501, so that other protrusions on the inner wall of the bamboo tube 500 or the bamboo partition 501 are removed.

[0065] Since there are multiple movable knives 200 movably connected to the knife rod 100 in the present solution, and each of the multiple movable knives 200 is provided with an extension portion 204, after being constrained and cooperated with the limit pin 301 of the limit assembly 300, it is possible to prevent the movable knife 200 from detaching and falling. At the same time, each pair of elastic members 401 in the connecting groove 101 on the knife rod 100 corresponds to each of the movable knives 200. Under this structural form, the forces applied to the multiple movable knives 200 are independent. Therefore, when the movable knife probes into the interior of the bamboo tube 500, the movable knife 200 will perform adaptive activities in the connecting groove 101 according to the external force applied thereto. Due to the presence of a pair of elastic members 401, the side of the movable knife 200 close to the inner wall of the bamboo tube 500 will remain in partial contact with the bamboo tube 500, thereby improving the cleaning effect of the bamboo partition 501.

[0066] In this solution, the movable knife 200 mainly relies on the contact between the movable knife 200 and the bamboo partition 501 in the bamboo tube 500, and then uses the external propulsion force to destroy and clean the bamboo partition 501. When clearing the bamboo partition 501, based on the principle that the larger the contact area between the movable knife 200 and the bamboo partition 501 is under the same force, the smaller the pressure on the bamboo partition 501 is, this solution can arrange the multiple movable knives 200 in a staggered form. At the same time, the structural form of some of the movable knives 200 can also be adaptively adjusted or set with a specific structure according to their position on the knife rod 100 to improve the cleaning effect of the bamboo partition 501; as a preferred embodiment, preferably, the multiple movable knives 200 in this solution are divided into two groups, and the number of movable knives 200 in each group is greater than 1, one group of movable knives 200 is movably connected to the outer peripheral side of one end of the knife rod 100, which is set as a movable front knife group 21, and one end of the movable knife 200 of the movable front knife group extends along its length direction and exceeds one end of the knife rod 100, and the other group of movable knives 200 is movably connected to the outer peripheral side of the other end of the knife rod 100, which is set as a movable rear knife group 22.

[0067] The projection contours of the movable knives 200 of the front movable knife 200 group and the rear movable knife 200 group along the axial direction of the knife rod 100 are not in contact.

[0068] In this solution, the multiple movable knives 200 on the knife bar 100 are arranged in the form of a front and rear group, and at the same time, the movable knives 200 are not allowed to interfere with each other in the axial direction of the knife bar 100. This method allows the movable knives 200 of the movable front knife group 21 to first contact the bamboo partition 501 when clearing the bamboo partition 501, and generate force on a partial area of ​​the bamboo partition 501 to break it. Then, as the knife bar 100 of the movable tool is further inserted, the movable knives 200 of the movable rear knife group 22 generate force on other parts of the bamboo partition 501. This allows the bamboo partition 501 to be better concentrated when subjected to external force, thereby avoiding the need for external equipment to provide greater force to clear the bamboo partition 501 due to multiple points being subjected to force at the same time.

[0069] exist Figure 1 , Figure 2 and Figure 3 Based on the shown Fig. 9 As shown, as an example of a preferred selected implementation mode, preferably, the movable front knife group 21 described in this scheme includes two pairs of movable knives 200, which are a pair of first movable knives 200a and a pair of second movable knives 200b respectively. The pair of first movable knives 200a and the pair of second movable knives 200b are both relatively movably connected to the outer peripheral side of one end of the knife rod 100, and the ends of the pair of first movable knives 200a and the pair of second movable knives 200b that extend beyond one end of the knife rod 100 are both arc-shaped structures 200a1, 200b1, and the length of one end of the pair of first movable knives 200a that extends beyond one end of the knife rod 100 is less than the length of one end of the pair of second movable knives 200b that extends beyond one end of the knife rod 100; that is, the two pairs of movable knives 200 of the movable front knife group 21 (a pair of first movable knives 200a and a pair of second movable knives 200b) form a staggered structure in the axial direction of the knife rod 100.

[0070] In addition, the movable rear knife group 22 described in the present embodiment includes two pairs of movable knives 200, which are a pair of third movable knives 200c and a pair of fourth movable knives 200d respectively. The pair of the third movable knives 200c and the pair of the fourth movable knives 200d are both staggered and relatively movably connected to the outer peripheral side of the other end of the knife rod 100 (they can also be relatively misaligned in pairs, and the present embodiment shows a staggered relative form in pairs), wherein at least part of the third movable knife 200c and / or the fourth movable knife 200d close to the end of the movable front knife group 21 is an arc structure, and in the present embodiment, the end of the third movable knife 200c is an arc structure 200c1.

[0071] exist Figures 1 to 9 Based on the above, further combining Fig.10 As shown, Fig.10The diagram shows that when the movable knife of the present invention is implemented, the knife bar 100 is connected to the external driving device 600, and then penetrates into the bamboo tube 500, and the bamboo partition 501 has not been damaged. It can be intuitively known from the schematic diagram that when the movable knife 200 (especially the second movable knife 200b in the figure) is unfolded by the elastic member 401, the scraper 203 thereon contacts the inner wall of the bamboo tube 500, and as the external driving device 600 further drives the knife bar 100 forward, further combined with Fig.11 , Fig.11 It is a schematic diagram of the movable knife of the present invention when it is implemented and applied, and it penetrates into the bamboo tube 500 and destroys the bamboo partition 501. It can be seen from the schematic diagram that since the ends of the pair of first movable knives 200a and the pair of second movable knives 200b that extend beyond one end of the knife rod 100 are both arc-shaped structures 200a1, 200b1, therefore, when contacting with the bamboo partition 501, it will promote the retraction of the first movable knife 200a and the second movable knife 200b to a certain extent (i.e., compressing the elastic member 401), and since the pair of second movable knives 200b first contact with the bamboo partition 501, the external drive device 60 0 will form a greater pressure on the bamboo partition 501 locally, causing it to partially rupture more quickly, and then as the knife rod 100 penetrates, a pair of the first movable knives 200a contact the bamboo partition 501, causing the other parts of the bamboo partition 501 to further rupture, and finally the scraper 203 cuts, further achieving the removal of the bamboo partition 501. With the gradual penetration of the movable cutting tools, the third movable knife 200c and the fourth movable knife 200d will also gradually clean the bamboo partition 501 (wherein, the cleaning area formed by the first movable knife 200a, the second movable knife 200b, the third movable knife 200c, and the fourth movable knife 200d can be seen Figure 4 The movable tool of this scheme can be applied to the continuous processing of irregularly curved bamboo tubes to a certain extent, and is used to break and clean the bamboo partitions inside the bamboo tubes to obtain hollow bamboo tubes, which provides a reliable pre-processing guarantee for the post-processing of the bamboo tubes and has a higher processing efficiency and effect.

[0072] In this solution, the plurality of movable knives 200 are divided into a movable front knife group 21 and a movable rear knife group 22 which are arranged on the knife bar 100 in front and back, and a pair of first movable knives 200a, a pair of second movable knives 200b, a pair of third movable knives 200c and a pair of fourth movable knives 200d corresponding to the movable front knife group 21 and the movable rear knife group 22 are all arranged around the knife bar 100 at intervals, and the front ends of the pair of first movable knives 200a and the pair of second movable knives 200b of the movable front knife group 21 are Both have arc structures 200a1, 200b1, which can reduce the friction and other resistance between the convex teeth 202 and the bamboo partition 501 of the bamboo tube 500 during the breaking process. The pair of first movable knives 200a and the pair of second movable knives 200b are spaced and staggered, which can improve the efficiency of the movable cutting tools in breaking the bamboo partition 501 pushed in the bamboo tube 500, and at the same time, reduce the breaking force of the subsequent third movable knife 200c and the fourth movable knife 200d. Since the bamboo tube 500 is a structure with different diameters at both ends, when the movable tool of the present solution takes the large end of the bamboo tube 500 as the initial position, as the movable tool continues to move forward in the bamboo tube 500, the inner diameter of the bamboo tube 500 gradually decreases, and the elastic member 401 will be compressed when subjected to external force, so that the pair of first movable knives 200a, the pair of second movable knives 200b, the pair of third movable knives 200c and the pair of fourth movable knives 200d are retracted, thereby adapting to the inner diameter of the bamboo tube 500 and achieving a higher effect of breaking the bamboo partition 501.

[0073] The above descriptions are only some embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent device or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A movable tool for removing bamboo septa, which is used to penetrate into a bamboo tube to remove bamboo septa in the bamboo tube, characterized in that: It includes: Tool bar; There are multiple movable knives, all of which are movably connected to the outer peripheral side of the knife rod; A limiting assembly connected to the knife bar and the plurality of movable knives, wherein the limiting assembly is used to limit the movable knives from being separated from the knife bar; An elastic component is arranged on the knife rod and is respectively connected to the plurality of movable knives; the elastic component is used to provide a repulsive force, and has a first state and a second state that cooperate with the movable knives; Wherein, in the first state, the repulsive force provided by the elastic component causes the movable knife to unfold in a direction away from the knife rod; In the second state, the movable knife is acted upon by an external force greater than the repulsive force, so that the elastic component is compressed and the movable knife is retracted in a direction close to the knife rod.

2. The movable cutter for removing bamboo partitions according to claim 1, characterized in that: The outer peripheral side of the knife rod is provided with connecting grooves corresponding to the multiple movable knives, and one side of the middle part of the movable knife is provided with an extension part, which can be movably inserted into the connecting groove corresponding to the movable knife.

3. The movable cutter for removing bamboo partitions according to claim 2, characterized in that: The limiting assembly is connected in the connecting groove of the knife rod and cooperates with the extending portion of the movable knife to limit the movable knife from being separated from the knife rod.

4. The movable cutter for removing bamboo partitions according to claim 3, characterized in that: The extension portion is provided with a waist-shaped groove; the limiting component comprises: There are multiple limit pins, which correspond to the connecting grooves of the knife rod one by one. The limit pins are inserted into the connecting groove and pass through the waist groove of the movable knife to movably connect the movable knife to the knife rod.

5. The movable cutter for removing bamboo partitions according to any one of claims 2 to 4, characterized in that: The elastic component comprises: There are multiple pairs of elastic members, and each pair of elastic members corresponds to a connecting groove on the knife rod. The pair of elastic members corresponding to the connecting groove are respectively arranged at both ends of the connecting groove. One end of the elastic member is fixed in the connecting groove, and the other end thereof is against the movable knife movably connected to the connecting groove, so that the movable knife is repelled by the repulsive force of the elastic member and unfolds in the direction away from the knife rod.

6. The movable cutter for removing bamboo partitions according to claim 5, characterized in that: The elastic member is a spring; The length of the connecting groove is greater than the length of the movable knife, and the length of the extending portion beyond one side of the middle of the movable knife is less than the depth of the connecting groove; When the movable knife is extended in a direction away from the knife rod due to the repulsive force of the elastic member, the other side of the movable knife is higher than the outer surface of the knife rod and / or when the movable knife is acted upon by an external force greater than the repulsive force, causing the movable knife to be retracted to the maximum extent in a direction approaching the knife rod, the other side of the movable knife is higher than the outer surface of the knife rod.

7. The movable cutter for removing bamboo partitions according to claim 5, characterized in that: The movable knife comprises a knife body and a scraper, the extension portion is arranged at the middle of one side of the knife body, and the scraper is arranged at the other side of the knife body and is used for scraping the inner wall of the bamboo tube or the bamboo partition in the bamboo tube.

8. The movable cutter for removing bamboo partitions according to claim 7, characterized in that: The plurality of movable knives are divided into two groups, the number of movable knives in each group is greater than 1, one group of movable knives is movably connected to the outer peripheral side of one end of the knife rod, which is set as a movable front knife group, one end of the movable knives of the movable front knife group extends along its length direction and exceeds one end of the knife rod, and the other group of movable knives is movably connected to the outer peripheral side of the other end of the knife rod, which is set as a movable rear knife group; The projection contours of the movable knives of the front movable knife group and the rear movable knife group along the axial direction of the knife rod do not touch each other.

9. The movable cutter for removing bamboo partitions according to claim 8, characterized in that: A plurality of convex teeth are arranged on the other side of the knife body, and the plurality of convex teeth are arranged at intervals along the length direction of the knife body. The scraper is arranged on one of the convex teeth and has a blade portion higher than the convex teeth.

10. The movable cutter for removing bamboo partitions according to claim 8 or 9, characterized in that: The movable front knife group includes two pairs of movable knives, which are a pair of first movable knives and a pair of second movable knives, the pair of first movable knives and the pair of second movable knives are both relatively movably connected to the outer peripheral side of one end of the knife rod, the ends of the pair of first movable knives and the pair of second movable knives extending beyond one end of the knife rod are both arc-shaped structures, and the length of one end of the pair of first movable knives extending beyond one end of the knife rod is less than the length of one end of the pair of second movable knives extending beyond one end of the knife rod; The movable rear knife group includes two pairs of movable knives, which are a pair of third movable knives and a pair of fourth movable knives. The pair of third movable knives and the pair of fourth movable knives are connected to the outer peripheral side of the other end of the knife rod in pairs or in pairs. At least part of the third movable knife and / or the fourth movable knife is an arc-shaped structure near the end of the movable front knife group.

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