CN210389552U

CN210389552U - Auxiliary supporting device for bamboo tube of numerical control bamboo breaking machine

Info

Publication number: CN210389552U
Application number: CN201920917524.5U
Authority: CN
Inventors: 陈家振; 涂桥安; 伍根生; 何斌辉
Original assignee: Nanjing Forestry University
Current assignee: Nanjing Forestry University
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-04-24
Anticipated expiration: 2029-06-18

Abstract

The utility model provides a broken bamboo machine bamboo tube of numerical control is with supplementary strutting arrangement, whole mechanism can divide into two parts, spring lockpin device, rotatory strutting arrangement. Wherein the spring lock pin mechanism consists of a spring lock seat, a cylindrical spring, a spring pin, a pressed round rod, a plane cam, a roller and a bent rod. The spring lock seat is provided with a round through hole in the vertical direction and a rectangular through hole in the horizontal direction. The spring pin is a step shaft, the upper end of the spring pin is large, the lower end of the spring pin is small, and a circular through hole is formed in the large end of the spring pin. The rotary supporting mechanism consists of a rotary drum, a fixed shaft, a torsion spring, a V-shaped supporting rod, a V-shaped mounting block and a limiting rod. The utility model provides a broken bamboo quick-witted bobbin of numerical control is with supplementary strutting arrangement adopts torsion spring and spring catch to replace former design and adopts rack and pinion and four-bar linkage control rotatory, can solve the problem that the long-term use precision of former design is not high like this.

Description

Auxiliary supporting device for bamboo tube of numerical control bamboo breaking machine

Technical Field

The invention belongs to the field of bamboo processing machinery, and particularly relates to an auxiliary supporting device for a bamboo tube of a numerical control bamboo breaking machine.

Background

In the production process of bamboo summer sleeping mat, bamboo floor and bamboo chopping board, the first procedure is to cut the bamboo tube into bamboo strips. The bamboo tube is held by people in the old bamboo breaking machine, a bamboo tube supporting device is not needed, although the bamboo breaking machine is simple in structure, the machine needs one more worker, the labor intensity of workers is high, and the safety is poor. The existing numerical control bamboo breaking machine adopts automatic feeding, automatic measurement of the diameter of the bamboo tube and automatic tool changing, so that the bamboo tube needs to be supported by a mechanism before being split.

Therefore, the inventor applies for a novel numerical control bamboo breaking machine with the patent number of CN201210164442.0, the adopted bamboo tube centering combined part is a V-shaped support consisting of a support plate I, a support plate II and a pin shaft, and before feeding, the two bamboo tube centering combined parts are pushed to the middle position of a guide rail of a machine tool body by a swing mechanism; when breaking bamboo, in order to give the passageway that the push pedal built-up components gave way and move ahead, the thick bamboo tube centering built-up components lean on the drive of hammerhead to move to lathe bed guide rail left side, every broken thick bamboo tube, thick bamboo tube centering built-up components need move in, move out once, just so have following problem: if the bamboo tube centering combined part is clamped when bamboo is broken and does not completely move out of a channel for the forward movement of the push plate combined part, the bamboo tube centering combined part collides with the push plate combined part, the bamboo tube centering combined part is collided and flies, even serious accidents are caused, in addition, when the push plate combined part just starts to push the bamboo tube to a bamboo breaking knife, the bamboo tube needs to slide on a V-shaped support formed by a support plate I and a support plate II, and if a certain outer section on the bamboo tube is just positioned near the bamboo tube centering combined part at the moment, the bamboo tube can jump when sliding on the V-shaped support; if the bamboo tube is contacted with the bamboo breaking knife, two ends of the bamboo tube are propped against, the bamboo tube cannot jump when sliding on the V-shaped support, but the centering combination part of the bamboo tube is subjected to a downward acting force, and the resistance of the bamboo tube centering mechanism during moving out is increased.

Therefore, the inventor further improves and applies for a numerical control bamboo splitting machine bamboo tube V-shaped supporting device, wherein the numerical control bamboo splitting machine bamboo tube V-shaped supporting device is disclosed as a patent with the patent number of CN201510664595.5 and is composed of two V-shaped supports as shown in figures 12 and 13, the two V-shaped supports are respectively arranged at the front end of a machine frame and at the position close to the middle part of the machine frame, and each V-shaped support is composed of a left supporting piece and a right supporting piece; when breaking bamboo, the plane cams on the left and right sides of the push plate component push the rocker in the four-bar mechanism to swing to drive the rack to move forwards, the rack drives the gears on the left and right sides to rotate 90 degrees anticlockwise and clockwise respectively, and the left supporting piece and the right supporting piece fixedly connected to the gear and connecting seat component I and the gear and connecting seat component II rotate 90 degrees along with the rotation, so that a forward channel is opened for the push plate component; when the push pedal subassembly returns, the plane cam promotes the rocker and swings towards opposite direction, drives the rack and moves backward, and the gear of rack drive left and right sides respectively clockwise and anticlockwise rotation 90 degrees connects the left support piece right side support piece on gear and hookup seat subassembly I and gear and hookup seat subassembly II also along with rotatory 90 degrees, constitutes the V-arrangement and supports, but it also has following problem: the planar cam is adopted to push the four-bar mechanism to work, so that the precision requirement is extremely high, abrasion can be caused along with continuous use of equipment, further accidents are caused, secondary improvement is needed to be carried out, the operation reliability is improved, and the overall safety and durability are improved.

Disclosure of Invention

In order to solve the problems, the invention provides an auxiliary supporting device for a bamboo tube of a numerical control bamboo breaking machine, which adopts a torsion spring and a spring pin to replace the original design and adopts a gear rack and a four-bar mechanism to control rotation, so that the problem of low long-term use precision of the original design can be solved, and the invention provides the auxiliary supporting device for the bamboo tube of the numerical control bamboo breaking machine, which comprises two pairs of V-shaped supporting devices arranged at the front and the rear of a frame, wherein each pair of V-shaped supporting devices comprises a rotating supporting device and a spring lock pin device arranged at the left side and the right side of the frame, the front end of the frame of the numerical control bamboo breaking machine is a knife rest, the rotating supporting device is arranged in the frame of the numerical control bamboo breaking machine, a driving chain is arranged on the rotating supporting device, a push plate assembly is arranged at the rear end of the numerical control bamboo breaking machine and is driven by the driving chain to realize the reciprocating motion of the push plate, the spring lock pin devices are symmetrically arranged at the rear side of the rotary supporting device and are driven by a pressing plate and a plane cam which are arranged on the push plate component to realize locking and unlocking of the rotary supporting device;

each pair of rotary supporting devices comprises a pair of rotary drums, a pair of fixed shafts, a pair of bent rods, a pair of V-shaped supporting rods and a pair of V-shaped mounting blocks, wherein a left rotary drum and a right rotary drum are fixed on a frame, stepped holes are formed in the centers of the left rotary drum and the right rotary drum, rectangular grooves are formed in one side of the upper ends of the left rotary drum and the right rotary drum, the right V-shaped mounting block and the left V-shaped mounting block are inserted into the rectangular grooves of the rotary drum on the corresponding side and are welded and fixed, the left bent rods and the right bent rods are respectively and symmetrically welded on the other side of the left rotary drum and the right rotary drum, a connecting line between the center of the head hole of the left bent rod and the center of the left rotary drum, a connecting line between the center of the head hole of the right bent rod and the center of the right rotary drum and the center of the left rotary drum respectively form 90 degrees with the left V-shaped mounting block and the right V-shaped mounting block on the corresponding side, the right V-shaped supporting rod and the, the left V-shaped support rod and the right V-shaped support rod are respectively and correspondingly fixed on the left V-shaped mounting block and the right V-shaped mounting block by bolts to form a V-shaped support, the lower ends of the stepped holes of the left rotary drum and the right rotary drum are respectively provided with a U-shaped through groove, the U-shaped through grooves and the rectangular grooves at the upper ends of the rotary drums are arranged at 90 degrees, the upper end lever arm of the torsion spring is arranged in the U-shaped through grooves, then the left rotary drum and the right rotary drum are respectively sleeved on the left fixed shaft and the right fixed shaft, the lower end lever arms of the torsion spring are respectively inserted into the blind holes of the left fixed shaft and the right fixed shaft, and the left fixed shaft;

the spring lock pin device comprises a spring lock seat, a cylindrical spring, a spring lock pin, a pressed round rod and a plane cam, wherein a through hole is formed in the center of the spring lock seat, a through groove is formed in the middle of the spring lock seat, the spring lock seat is fixed on a rack on the rear side of a left rotary drum and a rack on the rear side of a right rotary drum through screws, the spring pin is arranged in the through hole of each spring lock seat, the cylindrical spring is sleeved on a shaft neck at the lower end of the spring pin, a through hole is formed in the middle of the upper end of the spring pin, and the pressed round rod penetrates through the through groove in the inner side; the head parts of the left bent rod and the right bent rod are respectively provided with a rectangular groove, the roller is hinged to the head parts of the left bent rod and the right bent rod respectively by a roller pin, the lower ends of the head parts of the left bent rod and the right bent rod are provided with blind holes, spring pins are inserted into the blind holes under the action of cylindrical springs, and spring pin devices on two sides respectively lock the left bent rod and the right bent rod, namely the rotary supporting device is locked;

the base is arranged above the push plate assembly, the pressing plate is mounted on the base through pressing plate bolts, the plane cam is mounted on the base through a fastening piece, the plane cam moves along with the movement of the push plate assembly, and the plane cam is in contact with the roller in the moving process.

In a further development of the invention, the spring detent device has at least 2 pairs, and generally two pairs are used.

The torsion spring is further improved in the mode that the upper end lever arm of the torsion spring is bent outwards by 90 degrees after the spring is rolled, and the lower end lever arm of the torsion spring is bent downwards by 90 degrees along the direction of a central line after the spring is rolled.

According to the further improvement of the invention, the upper ends of the left fixed shaft and the right fixed shaft are respectively provided with a rotating shaft snap spring for limiting the axial movement of the left rotating cylinder and the right rotating cylinder; the left fixed shaft and the right fixed shaft are in clearance fit with the left rotary drum and the right rotary drum, and the rotary shaft clamp spring mainly limits the axial movement of the left rotary drum and the right rotary drum; the left fixing shaft and the right fixing shaft are in clearance fit with the left rotating cylinder and the right rotating cylinder.

According to the further improvement of the invention, the roller pin is in interference fit with the holes at the head parts of the left bending rod and the right bending rod, and is in clearance fit with the roller, and the roller pin is mainly installed in the above way.

The invention further improves the structure that after the small end of the pressed round rod is inserted into the circular through hole in the spring pin, the clamp spring is arranged and limits the axial movement of the pressed round rod through the clamp spring, the limit is carried out through the clamp spring in the working process, the small end of the pressed round rod is inserted into the circular through hole in the spring pin, and the clamp spring is used for limiting the axial movement of the pressed round rod.

According to the further improvement of the invention, the front side of each rotary supporting device is provided with a limiting rod, the limiting rods are arranged in the rack and are contacted with the limiting rods after rotating for 90 degrees corresponding to the V-shaped supporting rods, and the limiting rods are used for limiting the rotation of the V-shaped supporting rods.

The invention provides an auxiliary supporting device for a bamboo tube of a numerical control bamboo breaking machine. Wherein the spring lock pin mechanism consists of a spring lock seat, a cylindrical spring, a spring pin, a pressed round rod, a plane cam, a roller and a bent rod. The spring lock seat is provided with a round through hole in the vertical direction and a rectangular through hole in the horizontal direction. The spring pin is a step shaft, the upper end of the spring pin is large, the lower end of the spring pin is small, and a circular through hole is formed in the large end of the spring pin. The rotary supporting mechanism consists of a rotary drum, a fixed shaft, a torsion spring, a V-shaped supporting rod, a V-shaped mounting block and a limiting rod. Under the acquiescent state of the rotary supporting device, the V-shaped supporting rod is limited by the limiting rod, and the V-shaped supporting rod is parallel to the motion direction of the push plate component. The tail end of the bent rod (the position close to the rotary drum is a near end, the other end is a tail end) is provided with a stepped hole, the upper part is small in size and the lower part is large in size, the upper part is provided with a roller, a hole at the lower part is reserved for inserting a spring pin, when the rotary supporting device rotates, the axis of the stepped hole is superposed with the axis of the spring pin, the spring pin is inserted into the lower part of the tail end of the bent rod, at the moment, the V-shaped supporting rod is perpendicular to the motion direction of the push plate assembly, and the V-shaped supporting rod is in the initial state of the whole mechanism.

Drawings

FIG. 1 is a top view of the numerical control bamboo cutting machine of the present invention;

FIG. 2 is an enlarged view of a V-shaped support of the bamboo tube of the present invention;

FIG. 3 is a view of the present invention in the direction of A;

FIG. 4 is a cross-sectional view of the invention B-B;

FIG. 5 is a cross-sectional view of the invention C-C;

FIG. 6 is a schematic view of the support mechanism in an immediately prior rotational position;

FIG. 7 is a view of the middle position of the front support mechanism of the present invention;

FIG. 8 is a 90 degree position view of the support mechanism of the present invention;

FIG. 9 is a view of the middle position of the rear support mechanism of the present invention;

FIG. 10 is a 90 degree position of the rear support mechanism of the present invention during the return stroke;

FIG. 11 is an enlarged partial view of the spring-latch mechanism of the present invention;

FIG. 12 is a prior art overall schematic of the present invention;

FIG. 13 is a schematic view of a prior art bamboo tube V-shaped support mechanism of the present invention;

in the figure: 1. The device comprises a left bent rod 2, a left rotary drum 3, a spring lock seat 4, a cylindrical spring 5, a spring pin 6, a pressed round rod 7, a pressing plate 8, a base 9, a plane cam 10, a pressing plate bolt 11, a roller pin 12, a roller 13, a right bent rod 14, a right rotary drum 15, a rotating shaft clamp spring 16, a right fixed shaft 17, a bolt 18, a right V-shaped supporting rod 19, a left V-shaped supporting rod 20, a clamp spring 21, a left fixed shaft 22, a torsion spring 23, a right V-shaped mounting block 24, a left V-shaped mounting block 25, a limiting rod 26, a push plate assembly 27, a bamboo drum 28, a driving chain 29, a rack 30 and a knife rest.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings:

the invention provides an auxiliary supporting device for a bamboo tube of a numerical control bamboo breaking machine, which adopts a torsion spring and a spring pin to replace the original design and adopts a gear rack and a four-bar mechanism to control rotation, so that the problem of low long-term use precision of the original design can be solved.

As a specific embodiment of the invention, the invention provides an auxiliary supporting device for a bamboo tube of a numerical control bamboo breaking machine, which comprises two pairs of V-shaped supporting devices arranged in front of and behind a rack 29, each pair of V-shaped supporting devices comprises a rotary supporting device and a spring lock pin device which are arranged on the left side and the right side of the rack 29, the front end of the rack 29 of the numerical control bamboo breaking machine is a tool rest 30, the rack 29 of the numerical control bamboo breaking machine is internally provided with the rotary supporting device, the rotary supporting device is provided with a driving chain 28, the rear end of the numerical control bamboo breaking machine is provided with a push plate assembly 26, the push plate assembly 26 is pushed by the driving chain 28, the bamboo tube 27 is fed into the rotary supporting device by a feeding mechanism, the spring lock pin devices are symmetrically arranged on the two sides of the rotary supporting device, and the spring lock pin devices are driven by the push plate assembly 26;

each pair of rotary supporting devices comprises a pair of rotary drums, a pair of fixed shafts, a pair of bent rods, a pair of V-shaped supporting rods and a pair of V-shaped mounting blocks, a left rotary drum 2 and a right rotary drum 14 are fixed on a frame 29, stepped holes are formed in the centers of the left rotary drum 2 and the right rotary drum 14, rectangular grooves are formed in one side of the upper ends of the left rotary drum 2 and the right rotary drum 14, a right V-shaped mounting block 23 and a left V-shaped mounting block 24 are inserted into the rectangular grooves of the rotary drums on the corresponding side and are welded and fixed, the left bent rods 1 and the right bent rods 13 are symmetrically welded on the other sides of the left rotary drum 2 and the right rotary drum 14 respectively, a connecting line of a head hole center of the left bent rod 1 and a center of the left rotary drum 2, a connecting line of a head hole center of the right bent rod 13 and a connecting line of the right rotary drum 14 and a connecting the left V-shaped mounting block 24 and the right V-shaped mounting block 23 on the corresponding side respectively form 90 degrees, the, the right V-shaped mounting block 23 and the left V-shaped mounting block 24 are provided with two circular through holes in the horizontal direction and are arranged in a row, the left V-shaped support rod 19 and the right V-shaped support rod 18 are respectively and correspondingly fixed on the left V-shaped mounting block 24 and the right V-shaped mounting block 23 by bolts 17 to form a V-shaped support, the lower ends of the stepped holes of the left rotary drum 2 and the right rotary drum 14 are respectively provided with a U-shaped through groove, the U-shaped through groove is arranged at 90 degrees with the rectangular groove at the upper end of the rotary drum, the upper end lever arm of the torsion spring 22 is arranged in the U-shaped through groove, then the left rotary drum 2 and the right rotary drum 14 are respectively sleeved on the left fixing shaft 21 and the right fixing shaft 16, the lower end lever arm of the torsion spring 22 is respectively inserted into the blind holes of the left fixing shaft 21 and the right fixing shaft 16, the left fixing shaft 21 and the right fixing shaft 16 are provided with a, the right fixing shaft 16 and the left fixing shaft 22 are inserted into the corresponding rotary drums, lower extending rods of the torsion springs 22 are inserted into blind holes of the corresponding fixing shafts, rotating shaft snap springs 15 are mounted at the upper ends of the right fixing shaft 16 and the left fixing shaft 22, stepped holes are formed in the tail ends, far away from the corresponding rotary drums, of the left bent rod 1 and the right bent rod 13, small holes in the upper portions of the stepped holes are provided with rollers 12 through roller pins 11, and holes are formed in the lower portions of the stepped holes for insertion of spring pins 5 of spring locking devices;

the spring lock pin device comprises a spring lock seat 3, a cylindrical spring 4, a spring pin 5, a pressed round rod 6 and a plane cam 9, wherein a through hole is formed in the center of the spring lock seat 3, a through groove is formed in the middle of the spring lock seat, the spring lock seat 3 is fixed on a rack 29 on the rear side of a left rotary drum 2 and a right rotary drum 14 through screws, the spring pin 5 is arranged in the through hole of each spring lock seat 3, the cylindrical spring 4 is sleeved on a shaft neck at the lower end of the spring pin 5, a through hole is processed in the middle of the upper end of the spring pin 5, and the pressed round rod 6 penetrates through the through groove in the inner side of the spring lock seat 3 and then is arranged in a; the head parts of the left bent rod 1 and the right bent rod 13 are both provided with rectangular grooves, the roller 12 is respectively hinged at the head parts of the left bent rod 1 and the right bent rod 13 by using a roller pin 11, the lower ends of the head parts of the left bent rod 1 and the right bent rod 13 are provided with blind holes, the spring pin 5 is inserted into the blind holes under the action of the cylindrical spring 4, and the spring pin devices at the two sides respectively lock the left bent rod 1 and the right bent rod 13, namely the rotary supporting device is locked;

according to the invention, a base 8 is arranged above the push plate assembly 26, a press plate 7 is arranged on the base 8 through a press plate bolt 10, the plane cam 9 is arranged on the base 8 through a fastener, the plane cam 9 moves along with the movement of the push plate assembly 26, and the plane cam 9 is contacted with the roller 12 in the moving process.

When the bamboo is broken, the push plate component 26 moves forwards, the press plates 7 fixed on two sides of the push plate component 26 by the press plate bolts 10 press the pressed round rods 6 to drive the spring pins 5 to move downwards, the cylindrical springs 4 are further compressed, the spring pins 5 on two sides are drawn out from the blind holes at the heads of the left bent rod 1 and the right bent rod 13, the spring lock pin device is opened, the torsion spring 22 in the left and right rotary supporting devices drives the left rotary drum 2, the left V-shaped mounting block 24, the left V-shaped support rod 19, the right rotary drum 14, the right V-shaped mounting block 23 and the right V-shaped support rod 18 to respectively rotate 90 degrees anticlockwise and clockwise, and at the moment, the left V-shaped support rod 19 and the right V-shaped support rod 18 are respectively blocked by the limiting rods 25 on two sides; after the bamboo breaking is finished, in the process that the push plate component 26 returns to the tail part of the frame 26, the plane cam 9 fixed on the push plate component 26 is contacted with the roller 12 hinged at the head parts of the left bent rod 1 and the right bent rod 13 to push the left bent rod 1 and the right bent rod 13 to rotate, before the heads of the left bending rod 1 and the right bending rod 13 are pushed above the corresponding spring pins 5 by the plane cam 9, the pressure plate 7 is firstly contacted with the pressed round rod 6 to press the pressed round rod 6 downwards to drive the spring pins 5 to move downwards, meanwhile, the pushing stroke of the plane cam 9 is finished, the blind holes at the heads of the left bent rod 1 and the right bent rod 13 are just positioned right above the spring pin 5, the spring pin 5 is pushed by the cylindrical spring 4 to extend into the blind holes at the heads of the left bent rod 1 and the right bent rod 13, the spring locking pin device is locked, and at the moment, the left V-shaped supporting rod 19 and the right V-shaped supporting rod 18 are reversely rotated by 90 degrees to form a V-shaped support.

The whole mechanism of the invention can be divided into two parts, namely a spring lock pin device and a rotary supporting device. Wherein the spring lock pin mechanism consists of a spring lock seat 3, a cylindrical spring 4, a spring pin 5, a pressed round rod 7, a plane cam 9, a roller 12 and a bent rod. The spring lock base 3 has a circular through hole in the vertical direction and a rectangular through hole in the horizontal direction. The spring pin 5 is a step shaft, the upper end is large, the lower end is small, and a circular through hole is formed in the large end. During assembly, firstly, the cylindrical spring 4 is sleeved at the small end of the spring pin 5, then the spring pin 5 (the large end is arranged at the upper part, and the small end is arranged at the lower part) is inserted into the circular through hole in the vertical direction of the spring lock seat 3, then the through hole on the spring pin 5 is aligned with the rectangular hole in the horizontal direction of the spring lock seat 3, the pressed round rod 6 is a stepped shaft, and the small end of the pressed round rod 6 is inserted into the circular through hole on the spring pin 5, and the axial movement of the pressed round rod 6 is limited by the clamp spring 20. Finally, the whole lock seat is fixed on the frame 29 by bolts. The rotary supporting mechanism consists of a rotary drum, a fixed shaft, a torsion spring 22, a V-shaped supporting rod, a V-shaped mounting block and a limiting rod 25. During assembly, one side of the upper end of the rotary drum is provided with a rectangular groove for inserting the V-shaped mounting block, and then the rotary drum is fixed by welding. Meanwhile, the bent rod and the V-shaped mounting block are welded and fixed at 90 degrees. And then the V-shaped support rod (a rectangular groove is arranged at the large end of the rod in the vertical direction, and two circular through holes are arranged in a row in the horizontal direction) is arranged on the V-shaped mounting block (two circular through holes are arranged in a row in the horizontal direction) by using a bolt. When the rotary drum is installed, the upper lever arm is aligned to the clamping groove at the lower end of the rotary drum, the lower lever arm is inserted into the reserved hole in the fixed shaft, the upper extension rod of the torsion spring is perpendicular to the axis, the lower extension rod of the torsion spring is parallel to the axis, and the two extension rods are arranged at 90 degrees).

And then the fixed shaft is inserted into the rotary drum, and simultaneously, the lower extending rod of the torsion spring is directly inserted into a reserved blind hole on the fixed shaft. After the insertion, the axial displacement of the fixed shaft is limited by a rotating shaft clamp spring 15 at the upper end of the fixed shaft. Finally, the drum is fixed to the frame 29. Under the acquiescent state of the rotary supporting device, the V-shaped supporting rod is limited by the limiting rod, and the V-shaped supporting rod is parallel to the motion direction of the push plate component. The tail end of the bent rod (the position close to the rotary drum is a near end, the other end is a tail end) is provided with a stepped hole, the upper part is big at the top, the upper part is provided with a roller, the hole at the lower part is reserved for inserting a spring pin, when the rotary supporting device rotates, the axis of the stepped hole is superposed with the axis of the spring pin, the spring pin is inserted into the lower part of the tail end of the bent rod, and at the moment, the V-shaped supporting rod is vertical to the motion direction of the push plate component, and the V-shaped.

In the V-shaped supporting device, as shown in fig. 2-5, the bamboo tube 27 is fed onto the bamboo tube supporting mechanism by the feeding mechanism, the driving chain 28 drives the push plate assembly 27 to move, when the push plate assembly 27 passes through the bamboo tube supporting mechanism, the left and right supporting devices rotate to leave a channel, and when the push plate assembly 27 returns, the left and right supporting devices rotate to reset.

In the state shown in fig. 1, the top ends of the spring pins 5 are respectively inserted into the left bending rod 1 and the right bending rod 13, the spring pins are in the upper limit position under the action of the cylindrical springs 4, the bamboo tube 27 is just pushed to the bamboo splitting knife by the push plate assembly 26, and the whole mechanism is in the initial state. The front supporting mechanism plays a supporting role.

The pusher plate assembly 26 moves along a guide rail on the frame 29 under the drive of the drive chain 28. When it moves to the position shown in figure 6, the bamboo tube has been cut open a small amount, and under the action of the push plate assembly, the rear support mechanism and the cut open main knife, the position of the bamboo tube does not change, so the front support mechanism can start to rotate. The pressing plate 7 is pressed downwards by the round pressing rod 6, the round pressing rod 6 drives the spring pin 5 to move downwards along the spring lock base 3, when the spring pin 5 moves downwards to the lower limit position, the cylindrical spring 4 is compressed, and simultaneously the spring pin 5 is pulled out from the left bent rod 1 and the right bent rod 13 respectively, as shown in fig. 11. At the next moment, the left rotary drum 2 will drive the left bending rod 1 and the left V-shaped support rod 19 to rotate counterclockwise around the left fixed shaft 21 under the action of the torsion spring 22, the left bending rod drives the roller 12 to rotate together, meanwhile, the right rotary drum 14 will drive the right bending rod 13 and the right V-shaped support rod 18 to rotate clockwise around the right fixed shaft under the action of the torsion spring 22, and the right bending rod drives the roller 12 to rotate together.

In the state shown in fig. 7, the left bending rod 1, the left rotary drum 2, the left V-shaped support rod 19, the right rotary drum 14 and the right V-shaped support rod 18 respectively perform counterclockwise rotation around the left fixed shaft 21 and clockwise rotation around the right fixed shaft 16 under the combined action of the torsion spring 12 and the plane cam 9. Meanwhile, the push plate assembly 26 pushes the bamboo tube 27 to move to the tool rest 30, and bamboo cutting is started.

In the state shown in fig. 8, the left curved bar 1, the left rotary drum 2, the left V-shaped support bar 19, the right rotary drum 14 and the right V-shaped support bar 18 are rotated 90 degrees counterclockwise around the left stationary shaft 21 and 90 degrees clockwise around the right stationary shaft 16 by the combined action of the torsion spring 12 and the plane cam 9, respectively. After the roller 12 is separated from the plane cam 9, the stopper rod 25 blocks the movement of the left V-shaped support rod 19 and the right V-shaped support rod 18, respectively.

Fig. 9 shows a state in which the rear support mechanism intermediate position moves in accordance with the front support mechanism intermediate position.

At the previous moment in the state shown in fig. 10, the plane cam 9 is driven by the push plate assembly 26 to push the roller 12, and the roller 12 respectively drives the left curved rod 1 to rotate clockwise around the left fixed shaft 21 and the right curved rod 13 to rotate counterclockwise around the right fixed shaft 16. The left bent rod 1 drives the left rotary drum 2 and the left V-shaped support rod 19 to rotate clockwise. The right bent rod 13 drives the right rotary drum 14 and the right V-shaped support rod 18 to rotate anticlockwise. Meanwhile, the pressing plate 7 drives the pressed round rod 6 to move downwards, the pressed round rod 6 drives the spring pin 5 to move downwards along the spring lock base 3 at the moment, the spring pin 5 moves downwards to the lower limit position and keeps for a period of time under the action of the pressing plate 7, so that the left bent rod 1 and the right bent rod 13 are reset, along with the movement of the push plate assembly 26, the pressed round rod 6 slowly rises under the combined action of the pressing plate 7 and the cylindrical spring 4, the pressed round rod 6 drives the spring pin 5 to slowly rise, the spring pin 5 is slowly inserted into the left bent rod 1 and the right bent rod 13 respectively, when the spring pin 5 moves to the upper limit position, the plane cam 9 still can abut against the roller 9, and the problem that the spring pin 5 cannot be reset smoothly due to the influence of friction force is avoided. In moving to the position shown in fig. 10, the spring pin 5 moves to the upper limit position.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, but any modifications or equivalent variations made according to the technical spirit of the present invention are within the scope of the present invention as claimed.

Claims

1. The utility model provides a broken bamboo machine of numerical control auxiliary stay device for thick bamboo tube, is including installing two pairs of V-arrangement strutting arrangement around frame (29), and every pair V-arrangement strutting arrangement is including installing rotary support device and the spring lockpin device in the frame (29) left and right sides, broken bamboo machine of numerical control frame (29) front end is knife rest (30), there is rotary support device in broken bamboo machine of numerical control frame (29), install driving chain (28) on the rotary support device, broken bamboo machine's rear end has push pedal subassembly (26), push pedal subassembly (26) are driven by driving chain (28), realize its reciprocating motion, and on thick bamboo tube (27) were sent into rotary support device by frame (29) left side by feed mechanism, its characterized in that: the spring lock pin devices are symmetrically arranged at the rear side of the rotary supporting device and are driven by a pressing plate (7) and a plane cam (9) which are arranged on a push plate component (26) to realize locking and unlocking of the rotary supporting device;

each pair of rotary supporting devices comprises a pair of rotary drums, a pair of fixed shafts, a pair of bent rods, a pair of V-shaped supporting rods and a pair of V-shaped mounting blocks, a left rotary drum (2) and a right rotary drum (14) are fixed on a rack (29), stepped holes are formed in the centers of the left rotary drum (2) and the right rotary drum (14), rectangular grooves are formed in one sides of the upper ends of the left rotary drum (2) and the right rotary drum (14), the right V-shaped mounting block (23) and the left V-shaped mounting block (24) are inserted into the rectangular grooves of the rotary drums on the corresponding sides and are welded and fixed, the left bent rod (1) and the right bent rod (13) are symmetrically welded on the other sides of the left rotary drum (2) and the right rotary drum (14) respectively, a connecting line of a head hole center of the left bent rod (1) and a center of the left rotary drum (2), and a connecting line of a head hole center of the right bent rod (13) and a center of the right rotary drum (14) form 90 degrees with, the left V-shaped support rod (18) and the right V-shaped support rod (19) are provided with a rectangular groove in the vertical direction of the large end of the rod, are provided with two circular through holes and are arranged in a row, the right V-shaped mounting block (23) and the left V-shaped mounting block (24) are also provided with two circular through holes in the same direction and are arranged in a row, the left V-shaped support rod (19) and the right V-shaped support rod (18) are respectively and correspondingly fixed on the left V-shaped mounting block (24) and the right V-shaped mounting block (23) by bolts (17) to form a V-shaped support, the lower ends of stepped holes of the left rotary drum (2) and the right rotary drum (14) are respectively provided with a U-shaped through groove, the U-shaped through grooves are arranged at 90 degrees with the rectangular grooves at the upper end of the rotary drum, the upper end lever arm of the torsion spring (22) is arranged in the U-shaped through groove, then the blind hole (2) of the left rotary drum (2) and the right rotary drum (14) are respectively sleeved on the left fixed shaft (21) and the right fixed shaft The left fixed shaft (21) and the right fixed shaft (16) are fixed on two sides of the frame (29) by screws;

the spring lock pin device comprises a spring lock seat (3), a cylindrical spring (4), a spring pin (5), a pressed round rod (6) and a plane cam (9), wherein a through hole is formed in the center of the spring lock seat (3), a through groove is formed in the middle of the spring lock seat, the spring lock seat (3) is fixed on a rack (29) on the rear side of a left rotary drum (2) and a right rotary drum (14) through screws, the spring pin (5) is arranged in the through hole of each spring lock seat (3), the cylindrical spring (4) is sleeved on a shaft neck at the lower end of the spring pin (5), a through hole is formed in the middle of the upper end of the spring pin (5), and the pressed round rod (6) penetrates through the through groove in the inner side of the spring lock seat (3) and then is loaded into a; the head parts of the left bent rod (1) and the right bent rod (13) are respectively provided with a rectangular groove, a roller (12) is hinged to the head parts of the left bent rod (1) and the right bent rod (13) by a roller pin (11), the lower ends of the head parts of the left bent rod (1) and the right bent rod (13) are provided with blind holes, a spring pin (5) is inserted into the blind holes under the action of a cylindrical spring (4), and spring pin devices on two sides respectively lock the left bent rod (1) and the right bent rod (13), namely, a rotary supporting device is locked;

there is base (8) push pedal subassembly (26) top, install clamp plate (7) through clamp plate bolt (10) on base (8), plane cam (9) are installed on base (8) through the fastener, plane cam (9) move along with push pedal subassembly (26), plane cam (9) remove in-process and gyro wheel (12) contact.

2. The auxiliary supporting device for the bamboo tube of the numerical control bamboo breaking machine as claimed in claim 1, wherein: the spring-loaded latch mechanism has at least 2 pairs.

3. The auxiliary supporting device for the bamboo tube of the numerical control bamboo breaking machine as claimed in claim 1, wherein: the type of the lever arm at the upper end of the torsion spring (22) is that the spring steel wire is bent outwards by 90 degrees after the spring is rolled, and the type of the lever arm at the lower end of the torsion spring (22) is that the spring steel wire is bent downwards by 90 degrees along the direction of a central line after the spring is rolled.

4. The auxiliary supporting device for the bamboo tube of the numerical control bamboo breaking machine as claimed in claim 1, wherein: the upper ends of the left fixed shaft (21) and the right fixed shaft (16) are respectively provided with a rotating shaft snap spring (15) for limiting the axial movement of the left rotary drum (2) and the right rotary drum (14); the left fixed shaft (21) and the right fixed shaft (16) are in clearance fit with the left rotary drum (2) and the right rotary drum (14).

5. The auxiliary supporting device for the bamboo tube of the numerical control bamboo breaking machine as claimed in claim 1, wherein: the roller pin (11) is in interference fit with holes in the head parts of the left bending rod (1) and the right bending rod (13), and is in clearance fit with the roller (12).

6. The auxiliary supporting device for the bamboo tube of the numerical control bamboo breaking machine as claimed in claim 1, wherein: after the small end of the pressed round rod (6) is arranged in the through hole in the middle of the upper end of the spring pin (5), a clamp spring (20) is further arranged, and the axial movement of the clamp spring is limited by the clamp spring (20).

7. The auxiliary supporting device for the bamboo tube of the numerical control bamboo breaking machine as claimed in claim 1, wherein: every rotation support device front side all has a gag lever post (25), gag lever post (25) are installed on frame (29) in the front of rotation support device, correspond V type bracing piece and contact with gag lever post (25) after rotating 90 degrees, and are spacing by gag lever post (25).