CN112277107B

CN112277107B - Adjustable furniture raw material bending device

Info

Publication number: CN112277107B
Application number: CN202010988475.1A
Authority: CN
Inventors: 王国胜; 王珏; 马融
Original assignee: Wuxi Institute of Technology
Current assignee: Jiangsu Inheritance Building Decoration Group Co.,Ltd.
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-10-26
Anticipated expiration: 2040-09-18
Also published as: CN112277107A

Abstract

The utility model provides a furniture raw materials bending apparatus with adjustable, includes the workstation, is equipped with ejecting device on the workstation, installs the pipe on the workstation, and the pipe front end suit ring, ring periphery installation bending die, bending die's the outside all is equipped with crooked board, all is equipped with first power device in the ring, and the pipe is equipped with second power device, and the steam inlet pipe is connected to the pipe, and the steam inlet pipe connects water steam supply equipment. The bending die is suitable for bending and shaping operation of wood furniture raw materials, high-temperature water vapor is sprayed to the wood raw materials through the water vapor supply device, so that the softening degree of the wood raw materials in the bending process is ensured, the second power device is adopted to drive the circular ring to rotate, bending dies with different sizes can be adjusted, in addition, in the process of bending and shaping one wood raw material, the other wood raw material can be subjected to bending operation with different sizes, the bending efficiency can be effectively improved, and the bending precision can be ensured.

Description

Adjustable furniture raw material bending device

Technical Field

The invention belongs to the field of furniture raw material bending equipment, and particularly relates to an adjustable furniture raw material bending device.

Background

Along with the development and progress of the society, people pay more and more attention to the quality of life, more and more people like customizing wooden furniture, the bending of wood raw materials is an important manufacturing process in the production and processing processes of the wooden furniture, but in the prior art, the bending of the wood raw materials needs to be performed by steaming and softening the wood raw materials through water vapor firstly, then bending is performed by adopting bending equipment, the phenomenon that the wood raw materials are cooled and hardened due to overlong bending time may occur in the bending process, so that the wood raw materials need to be secondarily softened, the operation is complex and the efficiency is low, meanwhile, in the prior art, the wood raw materials need to be shaped after being bent by adopting a bending mould, but most of the shaping is performed by adopting other equipment, so that the bending precision of the wood is changed, and the bending equipment in the prior art rarely can perform bending of the wood raw materials to different degrees, the bending die is single and cannot be adjusted.

Disclosure of Invention

The invention provides an adjustable furniture raw material bending device, which is used for overcoming the defects in the prior art.

The invention is realized by the following technical scheme:

an adjustable furniture raw material bending device comprises a horizontal workbench, a pushing device is arranged on the top surface of the workbench, round tubes in the front and back directions are fixedly arranged above the workbench through a support, the front end of each round tube is closed, a round ring is sleeved on the periphery of the front end of each round tube through a sealing bearing, a plurality of bending dies which are uniformly distributed in an annular shape and have U-shaped vertical cross sections are fixedly arranged on the periphery of the round ring, each bending die comprises a rectangular part close to the round ring and an arc part far away from one side of the round ring, the radian of the arc part of each bending die is different, the distances from the middle parts of the arc parts of all the bending dies to the circle center of the round ring are equal, a group of rotating shafts are respectively arranged in the middle parts of the bending dies in a bearing mode, each group of rotating shafts respectively comprises a plurality of rotating shafts which are distributed at unequal intervals along the radius extension lines of the round ring, wire rollers are respectively arranged on the peripheries of the front side and the rear side of the rotating shafts in a bearing mode, springs are respectively sleeved on the peripheries of the front side and the rear side of the rotating shafts, one end of each spring is fixedly connected with the periphery of the rotating shaft, the other end of each spring is fixedly connected with the corresponding wire roller, the gears are fixedly installed in the middle of the rotating shaft, the gears and the wire rollers installed on each group of rotating shafts are sequentially reduced from near to far according to the distance from the rotating shafts to the circular ring, the gears corresponding to the adjacent rotating shafts in the same bending die are meshed and matched, the outer sides of the bending die are respectively provided with a bending plate, the front and back length of the bending plate is smaller than the front and back length of the circular ring, each bending plate comprises a first bending plate located in the middle and a plurality of groups of second bending plates located on two sides of the first bending plate, the first bending plates and the front and back ends of the corresponding six groups of second bending plates are located on the same vertical plane, each group of second bending plates comprises two second bending plates which are symmetrical along the central line of the first bending plate, the width of the second bending plates is gradually increased along with the distance between the second bending plates and the first bending plates, the adjacent second bending plates positioned on the same side of the first bending plate are hinged and connected, a group of second bending plates positioned on two sides of the first bending plate are respectively hinged and connected with the first bending plate, the hinged connection positions of the first bending plate and the second bending plates are respectively provided with a torsion spring, pull rings are fixedly arranged in the middle parts of the front side and the rear side of each second bending plate, a plurality of groups of second bending plates on two sides of the first bending plate are sequentially corresponding to the diameters of corresponding wire rollers in the same group from large to small according to the sequence from wide to narrow, the peripheries of the wire rollers are respectively wound with a plurality of circles of pull ropes, the middle parts of the pull ropes are respectively fixed on the peripheries of the corresponding wire rollers, two ends of each pull rope respectively penetrate through the arc part of the bending die to be fixedly connected with the pull rings corresponding to the ends of the corresponding second bending plates, the pull rings of the two second bending plates positioned on the outermost sides of the first bending plate are fixedly connected with the pull ropes positioned on the peripheries of the wire rollers closest to the corresponding bending die, the lengths of the pull ropes are shortened along with the distance between the corresponding rotating shafts and the circle centers of the rings, one side of each bending plate, which is close to the bending die, is provided with a clamping and fixing structure, the winding directions of pull ropes on the peripheries of wire rollers corresponding to adjacent rotating shafts are opposite, the peripheries of the circular rings are provided with first through holes which are in one-to-one correspondence with the bending die, horizontal worms are mounted in the first through holes in a bearing manner, the worms are meshed and matched with gears closest to the circular rings in the corresponding bending die, first power devices for driving the corresponding worms to rotate are arranged in the first through holes, the circular pipe is provided with a second power device for driving the circular rings to rotate, the outer side of the rear end of the circular pipe is fixedly connected with one end of a steam inlet pipe, the steam inlet pipe is communicated with the inside of the circular pipe, the other end of the steam inlet pipe is fixedly connected with steam supply equipment, the lower part of the front side of the circular pipe is provided with a vertical second through hole, the second through hole can be in sealed communication with the first through hole, the arc part of the bending die is provided with a plurality of steam outlet holes which are uniformly distributed, and a pushing device can vertically push the bending plate; the pushing device, the first power device, the second power device and the water vapor supply equipment are respectively connected with a power supply.

According to the adjustable furniture raw material bending device, the ejection device comprises the first grooves, the hydraulic rods and the top plate, the vertical first grooves are formed in the four corners of the top surface and the middle of the top surface of the workbench, the hydraulic rods with the movable ends facing upwards are fixedly installed in the first grooves, the top surfaces of the hydraulic rods are simultaneously and fixedly provided with the top plate, and the top surfaces of the top plates can be in contact fit with the bottom surfaces of the bending plates.

According to the adjustable furniture raw material bending device, the first power device comprises the first motor, the second gear and the second gear, the waterproof first motor is fixedly installed in the first through hole, the output shaft of the first motor is parallel to the corresponding worm, the first gear is fixedly installed on the output shaft of the first motor, the second gear is fixedly sleeved on the periphery of the worm, the second gear can be meshed with the corresponding first gear respectively, and the first motor is connected with the power supply respectively.

According to the adjustable furniture raw material bending device, the second power device comprises a second motor, an annular rack and a third gear, the second motor with an upward output shaft is fixedly installed on the upper portion of the rear side of the circular tube, the third gear is fixedly installed on the output shaft of the second motor, the annular rack is fixedly installed on the rear side of the circular ring, the third gear is meshed with the annular rack in a matched mode, and the second motor is connected with the power source.

The invention has the advantages that: the invention is suitable for the bending and shaping operation of the wooden furniture raw material; when the bending die is used, as shown in fig. 1, the pull ropes corresponding to the bending die located at the lowest part of the ring are all in a release state, the bending plates are in a horizontal state under the action of the torsion springs, the bending plates are located above the pushing device and are in contact fit with the pushing device, the pull ropes corresponding to other bending dies are all in a tightening state, the corresponding bending plates are all in a bending state and are respectively located at the outer sides of the arc parts of the corresponding bending dies, a worker places a wooden raw material to be bent after softening operation in the middle of the top surface of the bending plates, clamps and fixes the wooden raw material through the clamping and fixing structure, at the moment, the second through hole is in sealed communication with the first through hole of the bending die located right below the ring, then the first power device drives the worm corresponding to the bending die located right below the ring to rotate, the rotation of the worm drives the gear below the worm to rotate, so as to drive the gear and the rotating shaft in the whole bending die to rotate, because adjacent gears in the same bending die are meshed and matched, the rotating directions of the adjacent rotating shafts are opposite, and the winding directions of the pull ropes on the peripheries of the wire rollers corresponding to the adjacent rotating shafts are opposite, the corresponding wire rollers are rotated along with the rotating shafts under the action of the springs, the pull ropes on the peripheries of the wire rollers are wound on the peripheries of the wire rollers simultaneously due to the rotation of the wire rollers, so that the pull ropes are tightened, meanwhile, the pushing device pushes the bending plates upwards to enable the first bending plate to be close to the arc-shaped part of the bending die, meanwhile, the second bending plate is gradually bent towards one side of the first bending plate along the hinge point on one side of the second bending plate close to the first bending plate in the tightening process of the corresponding pull ropes, so that the top surface of the second bending plate is gradually bent and attached to the convex surface of the arc-shaped part of the bending die in the process of gradually approaching the wood raw material to the arc-shaped part of the bending die, and because the diameters of the gears on the peripheries of the rotating shafts and the wire rollers are reduced along the increase of the distance from the middle part of the ring along with the rotating shafts, the length of the stay cord is shortened along with the increase of the distance between the corresponding rotating shaft and the middle part of the circular ring, so that when the worm drive gear rotates, the stay cord is tightened under the action of the corresponding spring by the cord roller, each group of second bending plates on two sides of the first bending plate are close to one side of the arc part of the bending mold at the same time, wood raw materials are uniformly bent towards one side of the arc part of the bending mold, high-temperature water vapor is supplied into the steam inlet pipe by the water vapor supply equipment at the moment, the water vapor is sprayed out towards one side of the wood raw materials through the circular pipe, the second through hole, the first through hole and the steam outlet hole, the temperature of the wood raw materials is kept, the wood raw materials are effectively kept in a softened state in the bending process, when the pushing device pushes the wood raw materials above the first bending plate to be completely attached to the middle part of the arc part, the first power device continues to drive the corresponding worm to rotate, and the rotating shaft continues to rotate, so that the wire roller continuously tightens the corresponding pull rope, and simultaneously when the wood raw materials corresponding to one group of the second bending plates are bent to be tightly attached to the arc-shaped part of the bending die, because the wire roller bearing is arranged on the periphery of the corresponding rotating shaft and under the action of the spring, the pull rope keeps a tightened state under the action of the spring while the rotating shaft continues to rotate along with the gear, so that other wire rollers continue to tighten the corresponding pull ropes to bend the wood raw materials until the wood raw materials are bent and tightly attached to the periphery of the arc-shaped part of the bending die, at the moment, the first power device does not drive the worm to rotate any more, and simultaneously, the worm locks the gear below the worm, therefore, all the wire rollers keep the pull ropes in a tightened state under the action of the corresponding springs, so that the wood raw materials are fastened, and the water vapor supply equipment stops supplying high-temperature water vapor to the steam inlet pipe; when the wood raw material needs to be bent in other sizes, the second power device drives the circular ring to rotate, so that the corresponding bending die rotates right above the workbench, then the first power device drives the corresponding worm to rotate, all the pull ropes start to be released, meanwhile, the bending plate tends to be in a horizontal state under the action of the torsion spring in the downward movement process, the bottom surface of the bending plate is in contact fit with the ejection device, the operation can be repeated, the wood raw material can be continuously bent, and meanwhile, the corresponding bent and shaped wood raw material can be taken down through the same operation; the invention has reasonable design and ingenious conception, adopts the mode that the rotating shaft and the gear correspond to each group of second bending plates one by one, simultaneously drives the gear to rotate through the rotation of the worm, so as to release and tighten the pull rope wound on the periphery of the wire roller, thereby changing the state of the bending plates, and adopts the structure that the lengths of each group of second bending plates are unequal to decompose the bending structure of the arc part of the bending die, thereby decomposing and bending the wood raw material through the mode that the pull ropes correspondingly tighten and pull the second bending plates respectively, not only effectively improving the bending efficiency, but also ensuring the bending precision; meanwhile, in the process of bending the wood raw material, high-temperature water vapor is sprayed to the wood raw material through the water vapor supply device, so that the softening degree of the wood raw material in the bending process is ensured, and the bending efficiency of the wood raw material is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of the view from the direction A of FIG. 1; FIG. 3 is an enlarged view of the view of FIG. 1 taken along line B; FIG. 4 is an enlarged view of a portion of FIG. 1I; fig. 5 is an enlarged view of a portion of fig. 1 ii.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An adjustable furniture raw material bending device comprises a horizontal workbench 1, wherein a pushing device is arranged on the top surface of the workbench 1, round tubes 2 in the front and back directions are fixedly arranged above the workbench 1 through a support, the front ends of the round tubes 2 are sealed, the peripheries of the front ends of the round tubes 2 are sleeved with round rings 3 through sealing bearings, a plurality of bending dies 4 with U-shaped vertical cross sections and uniformly distributed in an annular shape are fixedly arranged on the peripheries of the round rings 3, each bending die 4 comprises a rectangular part close to the round ring 3 and an arc part far away from one side of the round ring 3, the radian of the arc part of each bending die 4 is different, the distances from the middle parts of the arc parts of all the bending dies 4 to the circle center of the round ring 3 are equal, a group of rotating shafts 5 are respectively arranged in the middle parts of the bending dies 4 in a bearing manner, each group of rotating shafts 5 comprises a plurality of rotating shafts 5 which are distributed at unequal distances along the radius extension line of the round ring 3, and wire rollers 6 are respectively arranged on the peripheries of the front and back sides of each rotating shaft 5, and the peripheries of the front side and the rear side of the rotating shaft 5 are all sleeved with springs 7, one end of each spring 7 is fixedly connected with the periphery of the rotating shaft 5, the other end of each spring 7 is fixedly connected with a wire roller 6 on the corresponding side, the middle part of each rotating shaft 5 is fixedly provided with a gear 8, the gear 8 and the wire roller 6 which are arranged on each group of rotating shafts 5 are sequentially reduced in diameter from near to far according to the distance from the ring 3, the gears 8 corresponding to the adjacent rotating shafts 5 in the same bending die 4 are meshed and matched, the outer side of the bending die 4 is provided with a bending plate 9, the front-rear length of the bending plate 9 is smaller than the front-rear length of the ring 3, each bending plate 9 comprises a first bending plate 10 in the middle and a plurality of second bending plates 11 which are positioned on two sides of the first bending plate 10, the first bending plate 10 and the front-rear two ends of the corresponding six groups of second bending plates 11 are positioned on the same vertical plane, each group of second bending plates 11 comprises two second bending plates 11 which are symmetrical along the central line of the first plate 10, the width of the second bending plate 11 is gradually increased along with the increase of the distance between the second bending plate 11 and the first bending plate 10, the adjacent second bending plates 11 positioned at the same side of the first bending plate 10 are hinged and connected, a group of second bending plates 11 positioned at two sides of the first bending plate 10 are respectively hinged and connected with the first bending plate 10, the hinged connection parts of the first bending plate 10 and the second bending plate 11 are respectively provided with a torsion spring, the middle parts of the front side and the rear side of the second bending plate 11 are respectively and fixedly provided with a pull ring 12, a plurality of groups of second bending plates 11 at two sides of the first bending plate 10 are respectively and sequentially corresponding to the corresponding wire roller diameter of the same group according to the sequence from wide to narrow, the periphery of the wire roller 6 is respectively wound with a plurality of circles of pull ropes 13, the middle parts of the pull ropes 13 are respectively fixed at the periphery of the corresponding wire rollers 6, two ends of the pull ropes 13 respectively penetrate through the arc parts of the bending die 4 and are fixedly connected with the pull rings at the corresponding end parts of the second bending plates 11, the pull rings 12 of two second bending plates 11 positioned at the outermost sides of the first bending plates 10 are fixedly connected with pull ropes 13 positioned at the peripheries of the wire rollers 6, which are closest to the circular ring 3, of the corresponding bending dies 4, the lengths of the pull ropes 13 are reduced along with the increase of the distances from the centers of the circles of the corresponding rotating shafts 5, one sides of the bending plates 9, which are close to the bending dies 4, are respectively provided with a clamping and fixing structure, the winding directions of the pull ropes 13 at the peripheries of the wire rollers 6, which are corresponding to the adjacent rotating shafts 5, are opposite, the peripheries of the circular rings 3 are provided with first through holes 14 which are in one-to-one correspondence with the bending dies 4, horizontal worms 15 are respectively arranged in the first through holes 14 in a bearing manner, the worms 15 are in meshing fit with the gears 8, which are closest to the circular rings 3, in the corresponding bending dies 4, first power devices for driving the corresponding worms 15 to rotate are respectively arranged in the first through holes 14, the circular pipe 2 is provided with a second power device for driving the circular ring 3 to rotate, and one end of a steam inlet pipe 16 is fixedly connected to the outer side of the rear end of the circular pipe 2, the steam inlet pipe 16 is communicated with the interior of the circular pipe 2, the other end of the steam inlet pipe 16 is fixedly connected with a water vapor supply device, the lower part of the front side of the circular pipe 2 is provided with a vertical second through hole 17, the second through hole 17 can be in sealed communication with the first through hole 14, the arc-shaped part of the bending die 4 is provided with a plurality of uniformly distributed steam outlet holes 18, and the ejection device can vertically eject the bending plate 9; the pushing device, the first power device, the second power device and the water vapor supply equipment are respectively connected with a power supply. The invention is suitable for the bending and shaping operation of the wooden furniture raw material; when the bending die is used, as shown in fig. 1, the pulling ropes 13 corresponding to the bending die 4 located at the lowest position of the ring 3 are all in a releasing state, the bending plates 9 are in a horizontal state under the action of the torsion springs, the bending plates 9 are located above the pushing devices and are in contact fit with the pushing devices, the pulling ropes 13 corresponding to other bending dies 4 are all in a tightening state, the corresponding bending plates 9 are all in a bending state and are respectively located at the outer sides of the arc-shaped parts of the corresponding bending dies 4, a worker places the wood raw material 28 which needs to be bent after softening operation in the middle of the top surface of the bending plates 9, clamps and fixes the wood raw material 28 through the clamping and fixing structure, at the moment, the second through hole 17 is in sealed communication with the first through hole 14 of the bending die 4 located right below the ring 3, then the first power device drives the worm 15 corresponding to the bending die 4 located right below the ring 3 to rotate, the rotation of the worm 15 drives the gear 8 below the worm 15 to rotate, thereby driving the gears 8 and the rotating shafts 5 in the whole bending die 4 to rotate, because the adjacent gears 8 in the same bending die 4 are meshed and matched, the moving directions of the adjacent rotating shafts 5 are opposite, and because the winding directions of the pull ropes 13 at the peripheries of the wire rollers 6 corresponding to the adjacent rotating shafts 5 are opposite, the corresponding wire rollers 6 are rotated along with the rotation of the rotating shafts 5 under the action of the springs 7, the pull ropes 13 at the peripheries of the wire rollers 6 are simultaneously wound at the peripheries of the wire rollers, so that the pull ropes 13 are tightened, meanwhile, the pushing device pushes the bending plate 9 upwards, so that the first bending plate 10 is close to the arc part of the bending die 4, and meanwhile, the second bending plate 11 is gradually bent towards one side of the first bending plate 10 along the hinge point at one side close to the first bending plate 10 in the tightening process of the corresponding pull ropes 13, so that the top surface of the wood raw material 28 is gradually bent towards the arc part of the bending die 4 to be gradually attached to the convex surface of the arc part of the bending die 4, because the diameter of the gear 8 at the periphery of the rotating shaft 5 and the diameter of the wire roller 6 are both reduced along with the increase of the distance from the rotating shaft 5 to the middle of the circular ring 3, and the length of the pull rope 13 is also reduced along with the increase of the distance from the rotating shaft 5 to the middle of the circular ring 3, when the worm 15 drives the gear 8 to rotate, the wire roller 6 tightens the pull rope 13 under the action of the corresponding spring 7, so that each group of second bending plates 11 at two sides of the first bending plate 10 are both close to one side of the arc-shaped part of the bending die 4 at the same time, so as to uniformly bend the wood raw material 28 to one side of the arc-shaped part of the bending die 4, and at the moment, the water vapor supply device supplies high-temperature water vapor to the vapor inlet pipe 16, and the water vapor is sprayed to one side of the wood raw material 28 through the circular pipe 2, the second through hole 17, the first through hole 14 and the vapor outlet hole 18, so as to maintain the temperature of the wood raw material 28, and effectively ensure that the wood raw material 28 is kept in a softened state during the bending process, when the pushing device pushes the wooden raw material 28 above the first bending plate 10 to be completely attached to the middle of the arc-shaped portion, the first power device continues to drive the corresponding worm 15 to rotate, so that the rotating shaft 5 continues to rotate, so that the wire roller 6 continues to tighten up the corresponding pull rope 13, and meanwhile, when the wooden raw material 28 corresponding to one group of the second bending plates 12 is bent to be closely attached to the arc-shaped portion of the bending mold 4, because the wire roller 6 is mounted on the periphery of the corresponding rotating shaft 5 through a bearing and under the action of the spring 7, the rotating shaft 5 continues to rotate along with the gear 8, the pull rope 13 keeps a tightened state under the action of the spring 7, so that other wire rollers 6 continue to tighten up the corresponding pull ropes 13 to bend the wooden raw material 28 until the wooden raw material 28 is bent and closely attached to the periphery of the arc-shaped portion of the bending mold 4, at this time, the first power device does not drive the worm 15 to rotate any more, simultaneously, the worm 15 locks the gear 8 below, so that all the wire rollers 6 keep the pull rope 13 in a tightened state under the action of the corresponding springs 7, the wood raw material 28 is tightly fixed, and the water vapor supply device stops supplying high-temperature water vapor to the steam inlet pipe 16; when the wood raw material 28 needs to be bent in other sizes, the second power device drives the circular ring 3 to rotate, so that the corresponding bending die 4 rotates to a position right above the workbench 1, then the first power device drives the corresponding worm 15 to rotate, all the pull ropes 13 start to be released, meanwhile, the bending plate 9 tends to be in a horizontal state under the action of the torsion spring in the downward movement process, the bottom surface of the bending plate 9 is in contact fit with the pushing device, the operation can be repeated, the wood raw material 28 can be continuously bent, and meanwhile, the corresponding bent and shaped wood raw material 28 can be taken down through the same operation; the invention has reasonable design and ingenious conception, adopts the mode that the rotating shaft 5 and the gear 8 correspond to each group of second bending plates 11 one by one, simultaneously drives the rotation of the gear 8 through the rotation of the worm 15, so as to release and tighten the pull rope 16 wound on the periphery of the wire roller 6, thereby changing the state of the bending plates 9, and adopts the structure that the lengths of each group of second bending plates 12 are unequal to decompose the bending structure of the arc part of the bending die, thereby decomposing and bending the wood raw material 28 through the mode that the pull rope 13 correspondingly tightens and pulls the second bending plates 11, thereby not only effectively improving the bending efficiency, but also ensuring the bending precision; meanwhile, in the process of bending the wood raw material, high-temperature water vapor is sprayed to the wood raw material through the water vapor supply device, so that the softening degree of the wood raw material in the bending process is ensured, and the bending efficiency of the wood raw material is ensured.

Specifically, as shown in fig. 1, the ejector device described in this embodiment includes first groove 19, hydraulic rod 20, roof 21, and vertical first groove 19 is all seted up at the top surface four corners department and the top surface middle part of workstation 1, and equal fixed mounting movable end hydraulic rod 20 up in the first groove 19, roof 21 is all fixed mounting simultaneously to the top surface of hydraulic rod 20, and the top surface of roof 21 can be in contact fit with curved plate 9 bottom surface. During initial state, hydraulic stem 21 is in the shrink state, roof 21 top surface and the cooperation of the 9 bottom surface contacts of crooked board, when using, hydraulic stem 20 all extends simultaneously, hydraulic stem 20's extension promotes roof 21 rebound, stay cord 13 all contracts simultaneously, thereby the crooked board 11 of second that the pulling corresponds is when all rebound to arc portion one side bending gradually, roof 21 promotes crooked board 9 rebound simultaneously, thereby roof 21 promotes first crooked board 10 rebound, thereby make the corresponding position of first crooked board 10 and raw materials plank and 4 arc portion convex surfaces middle parts of bending die keep the close contact cooperation thereby jack-up and fixed with the corresponding position of first crooked board 10 and raw materials plank.

Specifically, as shown in the figures, the first power device described in this embodiment includes a first motor 22, a first gear 23, and a second gear 24, the first through holes 14 are all fixedly installed with the waterproof first motor 22, the output shaft of the first motor 22 is all parallel to the corresponding worm 15, the output shaft of the first motor 22 is all fixedly installed with the first gear 23, the periphery of the worm 15 is all fixedly sleeved with the second gear 24, the second gear 24 can be respectively engaged with the corresponding first gear 23, and the first motor 22 is all connected with the power supply. In the use process, the second gears 24 can be meshed with the corresponding first gears 23 respectively, the corresponding worms 15 are driven to rotate by the rotation of the output shafts of the first motors 22, and meanwhile, the service life of the first power device can be effectively prolonged by the aid of the waterproof first motors 22.

Further, as shown in fig. 3, the second power device according to this embodiment includes a second motor 25, an annular rack 27, and a third gear 26, the second motor 25 with an upward output shaft is fixedly installed on the upper portion of the rear side of the circular tube 2, the third gear 26 is fixedly installed on the output shaft of the second motor 25, the annular rack 27 is fixedly installed on the rear side of the circular ring 3, the third gear 26 is engaged with the annular rack 27, and the second motor 25 is connected to a power supply. During use, since the third gear 26 is engaged with the annular rack 27, the rotation of the output shaft of the second motor 25 drives the ring 3 to rotate, so as to adjust the bending die 4.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. An adjustable furniture material bending device is characterized in that: comprises a horizontal workbench (1), a pushing device is arranged on the top surface of the workbench (1), round tubes (2) in the front and back directions are fixedly arranged above the workbench (1) through a support, the front ends of the round tubes (2) are sealed, a round ring (3) is sleeved on the periphery of the front end of the round tube (2) through a sealing bearing, a plurality of bending dies (4) with U-shaped vertical cross sections and uniformly distributed in an annular shape are fixedly arranged on the periphery of the round ring (3), each bending die (4) comprises a rectangular part close to the round ring (3) and an arc part far away from one side of the round ring (3), the arcs of each bending die (4) are different, the distances from the middle parts of the convex surfaces of the arc parts of all the bending dies (4) to the circle center of the round ring (3) are equal, a group of rotating shafts (5) are respectively arranged on the middle parts in the bending dies (4) in a bearing manner, each group of rotating shafts (5) comprises a plurality of rotating shafts (5) which are distributed along the radii of the round rings (3) with unequal distances, the periphery of the front side and the rear side of the rotating shaft (5) are respectively provided with a wire roller (6) in a bearing mounting manner, the periphery of the rotating shaft (5) is respectively sleeved with a spring (7), one end of each spring (7) is fixedly connected with the periphery of the rotating shaft (5), the other end of each spring (7) is fixedly connected with the wire roller (6) on the corresponding side, gears (8) are respectively fixedly mounted in the middle of the rotating shaft (5), the gears (8) and the wire rollers (6) mounted on each rotating shaft (5) are sequentially reduced from near to far according to the distance from the circular ring (3), the gears (8) corresponding to the adjacent rotating shafts (5) in the same bending die (4) are meshed and matched, the outer side of the bending die (4) is respectively provided with a bending plate (9), the front length and the rear length of each bending plate (9) are smaller than the front length and the rear length of the circular ring (3), each bending plate (9) comprises a first bending plate (10) in the middle and a plurality of second bending plates (11) on the two sides of the first bending plate (10), the first bending plate (10) and the front end and the rear end of the corresponding six groups of second bending plates (11) are located on the same vertical plane, each group of second bending plates (11) comprises two second bending plates (11) which are symmetrical along the central line of the first bending plate (10), the width of each second bending plate (11) is gradually increased along with the increase of the distance between the second bending plate (11) and the first bending plate (10), the adjacent second bending plates (11) which are located on the same side of the first bending plate (10) are hinged and connected, one group of second bending plates (11) which are located on two sides of the first bending plate (10) are respectively hinged and connected with the first bending plate (10), torsion springs are mounted at the hinged connection positions of the first bending plate (10) and the second bending plates (11), pull rings (12) are fixedly mounted in the middle parts of the front side and the rear side of the second bending plate (11), and groups of second bending plates (11) on two sides of the first bending plate (10) are sequentially connected with corresponding group of same line rollers from large to small in sequence from the diameter to the small diameter Correspondingly, the periphery of the wire roller (6) is wound with a plurality of circles of pull ropes (13), the middle parts of the pull ropes (13) are respectively fixed on the periphery of the corresponding wire roller (6), two ends of each pull rope (13) respectively penetrate through the arc-shaped part of the bending die (4) to be fixedly connected with pull rings at the corresponding end parts of the corresponding second bending plates (11), the pull rings (12) of the two second bending plates (11) positioned at the outermost sides of the first bending plates (10) are fixedly connected with the pull ropes (13) positioned at the periphery of the wire roller (6) closest to the ring (3) of the corresponding bending die (4), the length of each pull rope (13) is reduced along with the increase of the distance between the corresponding rotating shaft (5) and the circle center of the ring (3), one side of each bending plate (9) close to the bending die (4) is provided with a clamping and fixing structure, the winding directions of the pull ropes (13) at the periphery of the wire rollers (6) corresponding to the adjacent rotating shafts (5) are opposite, the periphery of the ring (3) is provided with first through holes (14) corresponding to the bending die (4), horizontal worms (15) are mounted in the first through holes (14) in a bearing mode, the worms (15) are meshed and matched with gears (8) which are closest to the circular rings (3) in the corresponding bending dies (4), first power devices for driving the corresponding worms (15) to rotate are arranged in the first through holes (14), second power devices for driving the circular rings (3) to rotate are arranged on the circular tubes (2), one ends of steam inlet pipes (16) are fixedly connected to the outer sides of the rear ends of the circular tubes (2), the steam inlet pipes (16) are communicated with the interiors of the circular tubes (2), the other ends of the steam inlet pipes (16) are fixedly connected with steam supply equipment, vertical second through holes (17) are formed in the lower portions of the front sides of the circular tubes (2), the second through holes (17) can be communicated with the first through holes (14) in a sealing mode, a plurality of uniformly distributed steam outlet holes (18) are formed in arc-shaped portions of the bending dies (4), and the pushing devices can vertically push the bending plates (9); the pushing device, the first power device, the second power device and the water vapor supply equipment are respectively connected with a power supply.

2. The adjustable furniture stock bending apparatus according to claim 1, wherein: the ejection device comprises a first groove (19), a hydraulic rod (20) and a top plate (21), wherein the vertical first groove (19) is formed in the four corners of the top surface of the workbench (1) and the middle of the top surface, the hydraulic rod (20) with the movable end facing upwards is fixedly installed in the first groove (19), the top surface of the hydraulic rod (20) is fixedly installed with the top plate (21) at the same time, and the top surface of the top plate (21) can be in contact fit with the bottom surface of the bent plate (9).

3. The adjustable furniture stock bending apparatus according to claim 1, wherein: first power device include first motor (22), first gear (23), second gear (24), equal waterproof first motor (22) of fixed mounting in first through-hole (14), the output shaft of first motor (22) all is parallel with worm (15) that correspond, the equal first gear (23) of fixed mounting of output shaft of first motor (22), suit second gear (24) are all fixed to the periphery of worm (15), second gear (24) can cooperate with the meshing of first gear (23) that correspond respectively, first motor (22) are equallyd divide and are do not connected with the power.

4. An adjustable furniture stock bending apparatus according to claim 1, 2 or 3, wherein: the second power device comprises a second motor (25), an annular rack (27) and a third gear (26), the second motor (25) with an upward output shaft is fixedly mounted on the upper portion of the rear side of the circular tube (2), the third gear (26) is fixedly mounted on the output shaft of the second motor (25), the annular rack (27) is fixedly mounted on the rear side of the circular ring (3), the third gear (26) is meshed with the annular rack (27) in a matched mode, and the second motor (25) is connected with a power source.