The tightening structure for elastically tightening the bamboo tube

Abstract

The present invention relates to the technical field of tightening structures, and discloses a tightening structure for elastically tightening a bamboo tube, which is used to abut against the end of the bamboo tube. The tightening structure includes a moving table, and a rotating cylinder is arranged on the moving table; the front end of the rotating cylinder has a pressing end, the pressing end has a pressing disc, and a movable disc that moves along the axial direction of the rotating cylinder is movably connected to the pressing end; the movable disc is located in front of the pressing disc, and the movable disc and the pressing disc are arranged in a staggered manner; a return spring for driving the movable disc to move forward and reset is connected between the movable disc and the rotating cylinder; when the movable disc abuts against the end of the bamboo tube, the moving table drives the rotating cylinder to continue moving forward, and the return spring is compressed. At this time, the return spring gives the bamboo tube elastic force, and the bamboo tube only needs to overcome the elastic deformation force of the return spring set through calculation and will not break, and the return spring can play a buffering role. In this way, it is avoided that the relatively brittle bamboo tube directly breaks during the forward movement of the moving table.

Description

Technical Field

[0001] This invention patent relates to the technical field of tightening structures, specifically, to a tightening structure for elastically tightening bamboo tubes. Background Art

[0002] The bamboo industry is a globally recognized green industry, with great social, economic, ecological, and cultural values. The Chinese bamboo industry has made important contributions to promoting social and economic development and ecological construction.

[0003] Currently, the existing bamboo splitting equipment on the market generally uses bamboo splitting knives to split bamboo into bamboo strips of the required width. The bamboo splitting equipment includes a tightening structure for tightening the bamboo tube. After the bamboo tube is placed in the bamboo splitting equipment, the tightening structure tightens the bamboo tube, and then the outer wall of the bamboo tube is cut by the bamboo splitting knife.

[0004] In the prior art, the tightening structure includes a moving table, on which a horizontally arranged rotating cylinder is provided. The front end of the rotating cylinder has a pressing end facing the end of the bamboo tube. When the moving table drives the rotating cylinder to move forward, until the pressing end presses against the end of the bamboo tube, the rotating cylinder continues to move forward to tighten the bamboo tube. However, during the process of tightening the bamboo tube, due to the different brittleness of the bamboo tubes, some relatively brittle bamboo tubes are extremely easy to break during the tightening process. The broken bamboo tubes cannot be sliced by the bamboo splitting equipment and are often discarded. In this way, it is not only a waste but also deviates from the original intention of ecological civilization construction. Summary of the Invention

[0005] The purpose of the present invention is to provide a tightening structure for elastically tightening bamboo tubes, aiming to solve the problem in the prior art that the tightening structure of the bamboo splitting equipment lacks a buffering function, resulting in the bamboo tubes being extremely easy to break during the tightening process.

[0006] The present invention is implemented as follows. The tightening structure for elastically tightening bamboo tubes, which is used to abut against the end of the bamboo tube, includes a horizontally arranged moving table, and a horizontally arranged rotating cylinder is provided on the moving table; the front end of the rotating cylinder has a pressing end facing the end of the bamboo tube, the pressing end has a longitudinally arranged pressing disc, and a movable disc that moves axially along the rotating cylinder is movably connected to the pressing end; the movable disc is located in front of the pressing disc, and the movable disc and the pressing disc are arranged in a staggered manner; a return spring for driving the movable disc to move forward and reset is connected between the movable disc and the rotating cylinder.

[0007] When the moving table drives the pressing end of the rotating cylinder to move forward, and when the movable disc abuts against the end of the bamboo tube, the moving table drives the rotating cylinder to continue to move forward, the return spring is compressed, and the movable disc is pressed to move backward until the pressing disc abuts against the end of the bamboo tube; when the moving table drives the rotating cylinder to move backward, the return spring drives the movable disc to move forward.

[0008] Optionally, a mounting base is provided below the mobile station, and the mobile station is movably connected to the mounting base; a power element for driving the mobile station to move relative to the mounting base is provided on the mounting base.

[0009] Optionally, a guide rail is provided on the mounting base, and the bottom of the mobile station is movably connected to the guide rail.

[0010] Optionally, a mounting plate is provided at the rear end of the mounting base, the power element is a cylinder, and the cylinder has a telescopic shaft; the cylinder is connected to the mounting plate, and the telescopic shaft is connected to the mobile station, and the mobile station is driven to move back and forth relative to the mounting plate through the telescopic shaft.

[0011] Optionally, two longitudinally arranged support plates are provided on the mobile station and are arranged at intervals in the front-rear direction, and the rotating cylinder rotatably passes through the two support plates.

[0012] Optionally, a rotating bearing is provided between the support plate and the rotating cylinder.

[0013] Optionally, the rotating cylinder has a front section exposed in front of the support plate, and the front end of the front section forms the pressing end.

[0014] Optionally, a plurality of spaced positions are provided on the pressing plate, and the plurality of spaced positions are arranged at intervals along the circumferential direction of the pressing plate; the plurality of spaced positions divide the pressing plate into a plurality of pressing parts, and the plurality of pressing parts are arranged at intervals along the circumferential direction of the pressing plate;

[0015] The movable plate includes a central shaft and a plurality of inclined parts arranged at intervals. The central shaft passes through the pressing end and is movably connected to the rotating cylinder. A return spring is provided between the central shaft and the rotating cylinder; the inner ends of the inclined parts are butted against the outer circumference of the central shaft, and the outer ends of the inclined parts extend outwards away from the central shaft; the plurality of inclined parts are arranged in a circumferential direction around the central shaft, and the inclined parts are arranged in alignment with the spaced positions in the front-rear direction;

[0016] The inclined part has an inclined surface arranged forward and abutted against the end of the bamboo tube. Along the direction from the inner to the outer of the inclined part, the inclined surface is arranged obliquely backward; when the plurality of inclined parts are squeezed and move backward, the plurality of inclined parts respectively pass through the plurality of spaced positions and move backward.

[0017] Optionally, rail grooves are provided on the outer circumference of the front end portion, and the plurality of rail grooves are arranged at intervals along the circumferential direction of the front section; the inner ends of the inclined parts are provided with guide plates extending backward, and the guide plates are movably embedded in the rail grooves; when the movable plate moves back and forth relative to the front section, the guide plates move back and forth in the rail grooves;

[0018] The inclined surface is covered with a surface elastic layer. The outer periphery of the surface elastic layer is fixedly connected to the inclined surface. The middle part of the surface elastic layer forms a movable part that abuts against the end of the bamboo tube and automatically elastically adjusts the pressing position. The movable part is movably arranged between the inclined surface.

[0019] Optionally, a plurality of elastic grooves are provided on the outer periphery of the central axis. The plurality of elastic grooves are arranged at intervals along the circumferential direction of the central axis. The inner end of the inclined part is movably embedded in the elastic groove. The bottom of the elastic groove is covered with a bottom elastic layer. The bottom elastic layer is arranged along the axial direction of the central axis. The inner end of the inclined part abuts against the bottom elastic layer. Along the direction of the central axis from front to back, the elastic coefficient of the bottom elastic layer gradually decreases.

[0020] When the inclined part abuts against the end of the bamboo tube and moves forward, the inclined part moves backward, swings towards the central axis, and along the direction of the central axis from front to back, the swing amplitude of the inclined part gradually decreases.

[0021] Compared with the prior art, for the tightening structure that elastically tightens the bamboo tube provided by the present invention, after the movable disc abuts against the end of the bamboo tube, the moving table drives the rotating cylinder to continue moving forward, and the return spring is compressed. At this time, the return spring gives elastic force to the bamboo tube. The bamboo tube only needs to overcome the elastic deformation force of the return spring set after calculation and will not break. Moreover, the return spring can play a buffering role. In this way, it is avoided that the relatively brittle bamboo tube directly breaks during the forward movement of the moving table. Description of the Drawings

[0022] Figure 1 is a three-dimensional schematic diagram of the tightening structure that elastically tightens the bamboo tube provided by the present invention;

[0023] Figure 2 is a three-dimensional schematic diagram of the tightening structure that elastically tightens the bamboo tube provided by the present invention;

[0024] Figure 3 is a three-dimensional schematic diagram of the tightening structure that elastically tightens the bamboo tube provided by the present invention. Detailed Embodiments

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0027] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and cannot be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] Referring to Figures 1-3 as shown, it is a preferred embodiment provided by the present invention.

[0029] The tightening structure for elastically tightening a bamboo tube provided by the present invention is used to abut against the end of the bamboo tube, and includes a horizontally arranged moving table 100, on which a horizontally arranged rotating cylinder 200 is provided; the front end of the rotating cylinder 200 has a pressing end facing the end of the bamboo tube, the pressing end has a longitudinally arranged pressing disc 201, and the pressing end is movably connected with a movable disc 202 that moves along the axial direction of the rotating cylinder 200; the movable disc 202 is located in front of the pressing disc 201, and the movable disc 202 and the pressing disc 201 are arranged in a staggered manner; a return spring for driving the movable disc 202 to move forward and reset is connected between the movable disc 202 and the rotating cylinder 200;

[0030] When the moving table 100 drives the pressing end of the rotating cylinder 200 to move forward, and when the movable disc 202 abuts against the end of the bamboo tube, the moving table 100 drives the rotating cylinder 200 to continue moving forward, the return spring is compressed, and the movable disc 202 is pressed to move backward until the pressing disc 201 abuts against the end of the bamboo tube; when the moving table 100 drives the rotating cylinder 200 to move backward, the return spring drives the movable disc 202 to move forward.

[0031] For the above-mentioned tightening structure for elastically tightening a bamboo tube, when the movable disc 202 abuts against the end of the bamboo tube, the moving table 100 drives the rotating cylinder 200 to continue moving forward, and the return spring is compressed. At this time, the return spring gives elastic force to the bamboo tube, and the bamboo tube only needs to overcome the elastic deformation force of the return spring set through calculation and will not break. Moreover, the return spring can play a buffering role. In this way, it is avoided that the relatively brittle bamboo tube breaks directly during the forward movement of the moving table 100.

[0032] A mounting base 300 is provided below the mobile station 100, and the mobile station 100 is movably connected to the mounting base 300; a power element 301 for driving the mobile station 100 to move relative to the mounting base 300 is provided on the mounting base 300. In this way, the power element 301 is driven by the controller to start, driving the mobile station 100 to move forward at a set speed. When the pressing disc 201 abuts against the bamboo tube, the mobile station 100 stops moving.

[0033] A guide rail 302 is provided on the mounting base 300, and the bottom of the mobile station 100 is movably connected to the guide rail 302. In this way, the mobile station 100 can move back and forth along the guide rail 302.

[0034] A mounting plate 303 is provided at the rear end of the mounting base 300. The power element 301 is a cylinder, and the cylinder has a telescopic shaft 3010; the cylinder is connected to the mounting plate 303, and the telescopic shaft 3010 is connected to the mobile station 100, driving the mobile station 100 to move back and forth relative to the mounting plate 303 through the telescopic shaft 3010. In this way, by installing the power element 301 on the mounting plate 303, the power element 301 is fixed on the mounting plate 303, the telescopic shaft 3010 is connected to the mobile station 100, and the telescopic shaft 3010 can move back and forth relative to the mounting plate 303, driving the mobile station 100 to move back and forth relative to the mounting plate 303.

[0035] Two support plates 101 arranged longitudinally and spaced apart from each other in the front-rear direction are provided on the mobile station 100, and the rotating cylinder 200 rotatably passes through the two support plates 101. In this way, the support plates 101 can support the rotating cylinder 200 to move radially along the support plates 101, fixing the moving direction of the rotating cylinder 200.

[0036] A rotating bearing 102 is provided between the support plate 101 and the rotating cylinder 200. In this way, the rotating bearing 102 plays a supporting role, avoiding directly matching the rotating cylinder 200 with the support plate 101, resulting in large transmission resistance and wear.

[0037] The rotating cylinder 200 has a front section exposed in front of the support plate 101, and the front end of the front section forms a pressing end. In this way, the bamboo tube can abut against the pressing end, avoiding being blocked by the support plate 101.

[0038] A plurality of spaced positions are provided in the pressing disc 201, and the plurality of spaced positions are arranged at intervals around the circumferential direction of the pressing disc 201; the plurality of spaced positions divide the pressing disc 201 into a plurality of pressing parts, and the plurality of pressing parts are arranged at intervals around the circumferential direction of the pressing disc 201.

[0039] The movable disk 202 includes a central axis 2020 and a plurality of inclined portions 2021 arranged at intervals. The central axis 2020 passes through the pressing end and is movably connected to the rotating cylinder 200. A return spring is provided between the central axis 2020 and the rotating cylinder 200. The inner end of the inclined portion 2021 is docked at the outer periphery of the central axis 2020, and the outer end of the inclined portion 2021 extends outward away from the central axis 2020. The plurality of inclined portions 2021 are arranged around the circumference of the central axis 2020, and the inclined portions 2021 are aligned front to back with the interval positions.

[0040] The inclined portion 2021 has an inclined surface arranged forward and abutting against the end of the bamboo tube. Along the direction from the inside to the outside of the inclined portion 2021, the inclined surface is arranged to be inclined backward; when the multiple inclined portions 2021 are squeezed and move backward, the multiple inclined portions 2021 pass through multiple spacing positions and move backward. In this way, the spacing positions are cleverly provided, and the movable disk 202 moves backward from the spacing positions through the spacing positions, ensuring the buffering effect of the reset spring. Moreover, since the inclined surface is arranged to be inclined backward, when the bamboo tube abuts against the inclined surface, the bamboo tube is not aligned with the center of the movable disk 202, and the end of the bamboo tube is unevenly stressed. In the process of the moving platform 100 moving forward, the center of the bamboo tube will be driven to align with the center of the movable disk 202, which can play a role in centering.

[0041] A rail groove 203 is provided on the outer periphery of the front end, and a plurality of rail grooves 203 are arranged around the front section at intervals in the circumferential direction; a guide plate 204 is provided along the rearward edge of the inner end of the inclined portion 2021, and the guide plate 204 is movably embedded in the rail groove 203; when the movable disk 202 moves forward and backward relative to the front section, the guide plate 204 moves forward and backward in the rail groove 203.

[0042] The inclined surface is covered with a surface elastic layer, the outer periphery of the surface elastic layer is fixedly connected to the inclined surface, the middle of the surface elastic layer forms a movable part that abuts against the end of the bamboo tube and automatically and elastically adjusts the pressing position, and the movable part is movably arranged between the inclined surface.

[0043] When the abutting end abuts against the bamboo tube, the guide plate 204 can move backward along the guide rail 302. At this time, the bamboo tube abuts against the inclined surface. Since a surface elastic layer is provided on the inclined surface, the surface elastic layer is elastic. When the center of the bamboo tube is not aligned with the center of the movable disk 202, since the inclined surface is tilted backward, the forces at the abutting positions at the end of the bamboo tube are different, which drives the center of the bamboo tube to move toward the center of the movable disk 202, thereby playing a role in centering.

[0044] A plurality of elastic grooves are provided on the outer periphery of the central shaft 2020. The plurality of elastic grooves are arranged at intervals along the circumferential direction of the central shaft 2020. The inner end of the inclined portion 2021 is movably embedded in the elastic groove; the bottom of the elastic groove is covered with a bottom elastic layer, and the bottom elastic layer is arranged along the axial direction of the central shaft 2020. The inner end of the inclined portion 2021 abuts against the bottom elastic layer; along the direction from front to back of the central shaft 2020, the elastic coefficient of the bottom elastic layer gradually decreases.

[0045] When the inclined portion 2021 abuts against the end of the bamboo tube and moves forward, the inclined portion 2021 moves backward, swings towards the central shaft 2020, and along the direction from front to back of the central shaft 2020, the swing amplitude of the inclined portion 2021 gradually decreases.

[0046] Due to the elasticity of the bottom elastic layer, when the inclined portion 2021 abuts against the end of the bamboo tube, the end of the bamboo tube presses the inclined portion 2021, and the inclined portion 2021 swings under the action of the elastic force of the bottom elastic layer. The inclined surface is arranged obliquely backward, and along the direction from front to back of the central shaft 2020, the swing amplitude of the inclined portion 2021 gradually decreases. Therefore, when the center of the end of the bamboo tube is not aligned with the center of the movable disk 202, the closer the end of the bamboo tube is to the center of the movable disk 202, the greater the swing amplitude. At this time, the end of the bamboo tube near the center of the movable disk 202 slides backward along the inclined surface until the center of the bamboo tube is aligned with the center of the movable disk 202. In this way, the center of the bamboo tube is aligned with the center of the movable disk 202.

[0047] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The tightening structure for elastically tightening a bamboo tube, characterized in that, It comprises a horizontally arranged moving platform, on which a horizontally arranged rotating cylinder is arranged; the front end of the rotating cylinder has a pressing end facing the end of the bamboo tube, the pressing end has a longitudinally arranged pressing plate, the pressing end is movably connected with a movable plate moving along the axial direction of the rotating cylinder; the movable plate is located in front of the pressing plate, and the movable plate and the pressing plate are arranged in a staggered manner; a reset spring driving the movable plate to move forward and reset is connected between the movable plate and the rotating cylinder; The pressure plate is provided with a plurality of spacing positions, and the plurality of spacing positions are arranged around the circumference of the pressure plate at intervals; the plurality of spacing positions divide the pressure plate into a plurality of pressure parts, and the plurality of pressure parts are arranged around the circumference of the pressure plate at intervals; The movable disk comprises a central axis and a plurality of spaced inclined portions, the central axis passes through the pressing end and is movably connected to the rotating cylinder, and the return spring is arranged between the central axis and the rotating cylinder; the inner end of the inclined portion is butted against the outer periphery of the central axis, and the outer end of the inclined portion extends outward away from the central axis; the plurality of inclined portions are arranged around the circumference of the central axis, and the inclined portions are aligned front and back with the spaced portions; The inclined portion has an inclined surface arranged forward and abutting against the end of the bamboo tube, and the inclined surface is arranged to be inclined backward along the direction from the inside to the outside of the inclined portion; when the plurality of inclined portions are squeezed and moved backward, the plurality of inclined portions respectively pass through the plurality of spacing positions and move backward; The outer circumference of the central axis is provided with a plurality of elastic grooves, which are arranged at intervals along the circumference of the central axis, and the inner end of the inclined portion is movably embedded in the elastic groove; the bottom of the elastic groove is covered with a bottom elastic layer, which is arranged along the axial direction of the central axis, and the inner end of the inclined portion abuts against the bottom elastic layer; along the direction from the front to the back of the central axis, the elastic coefficient of the bottom elastic layer gradually decreases; When the inclined portion abuts against the end of the bamboo tube and moves forward, the inclined portion moves backward and swings toward the central axis, and the swing amplitude of the inclined portion gradually decreases along the direction from front to back of the central axis.

2. The tightening structure for elastically tightening a bamboo tube according to claim 1, wherein, When the moving platform moves forward with the pressing end of the rotating cylinder, and when the movable disk abuts against the end of the bamboo tube, the moving platform continues to move forward with the rotating cylinder, the return spring is compressed, and the movable disk is pressed and moves backward until the pressing disk abuts against the end of the bamboo tube; when the moving platform moves backward with the rotating cylinder, the return spring drives the movable disk to move forward.

3. The tightening structure for elastically tightening the bamboo tube according to claim 1, characterized in that, A mounting seat is provided below the moving platform, and the moving platform and the mounting seat are movably connected; a power element for driving the moving platform to move relative to the mounting seat is provided on the mounting seat.

4. The pressing structure for elastically pressing the bamboo tube as described in claim 3, characterized in that, The mounting seat is provided with a guide rail, and the bottom of the moving platform is movably connected to the guide rail.

5. The tightening structure for elastically tightening the bamboo tube according to claim 4, characterized in that, A mounting plate is provided at the rear end of the mounting seat, and the power element is a cylinder having a telescopic shaft; the cylinder is connected to the mounting plate, and the telescopic shaft is connected to the moving platform, and the moving platform is driven to move forward and backward relative to the mounting plate through the telescopic shaft.

6. The tightening structure for elastically tightening a bamboo tube according to claim 1, characterized in that, There are two support plates arranged at intervals front and back and longitudinally on the mobile platform, and the rotating cylinder rotates through the two support plates.

7. The tightening structure for elastically tightening the bamboo tube according to claim 6, characterized in that, A rotating bearing is provided between the support plate and the rotating cylinder.

8. The elastic pressing structure for pressing the bamboo tube according to any one of claims 1 to 7, characterized in that, The rotating cylinder has a front section exposed in front of the support plate, and the front end of the front section forms the pressing end.

9. The pressing structure for elastically pressing the bamboo tube according to claim 8, wherein, A rail groove is provided on the outer periphery of the front section, and a plurality of the rail grooves are arranged at intervals around the circumference of the front section; the inner end of the inclined portion extends rearward with a guide plate, and the guide plate is movably embedded in the rail groove; when the movable disk moves back and forth relative to the front section, the guide plate moves back and forth in the rail groove; The inclined surface is covered with a surface elastic layer, the outer periphery of the surface elastic layer is fixedly connected to the inclined surface, the middle of the surface elastic layer forms a movable portion that abuts against the end of the bamboo tube and automatically elastically adjusts the pressing position, and the movable portion is movably arranged between the inclined surface.

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