CN114102149B

CN114102149B - Chair leg preparation machine

Info

Publication number: CN114102149B
Application number: CN202111160434.4A
Authority: CN
Inventors: 毛金标
Original assignee: Anji Jinbiao Furniture Factory
Current assignee: Anji Jinbiao Furniture Factory
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-12-13
Anticipated expiration: 2041-09-30
Also published as: CN114102149A

Abstract

The invention relates to a chair leg preparation machine, which comprises a chair leg preparation device and a material stacking rack, wherein the material stacking rack comprises a frame and a plurality of partition plates obliquely and crossly arranged in the frame; the production efficiency is improved.

Description

Chair leg preparation machine

Technical Field

The invention relates to the technical field of chair leg processing, in particular to a chair leg preparation machine.

Background

In the general process of manufacturing one chair leg of the five-star leg of the existing factory building, the untreated pipe A shown in figure 1 is changed into a manufactured and formed pipe B shown in figure 2 after various machining treatments; the specific process is as follows: the method comprises the following steps of (1) stacking a pipe on a preset station, arranging a plurality of independently placed mechanisms which are respectively a cutting machine, a bending press and an end part corrector in a factory building, carrying the pipe manually, cutting the pipe into a plurality of sections of pipes through the cutting machine, carrying the plurality of sections of pipes to the bending press, carrying out end part bending treatment, carrying the bent pipe to the end part corrector for final treatment, and putting the pipe into a storage box for storage after all treatments are finished; there are then a number of significant problems with this type of process:

1. multiple devices are independently placed in various places in a factory building, the space of the factory building is occupied, the problem that other parts can not be placed is caused, and the problem that workers move about is solved.

2. In addition, the mode of middle transport belongs to artifical transport basically, and this work efficiency is obvious not enough to and influence follow-up progress, follow-up work can only be implemented after waiting preceding part work to accomplish.

3. The ground for stacking the pipes occupies a large space, is messy and is not easy to take the pipes from the ground.

Disclosure of Invention

The invention aims to provide a chair leg preparation machine for preparing and processing a high-efficiency tube into chair legs.

In order to achieve the purpose, the main technical solution of the invention is a chair leg preparation machine, which comprises a chair leg preparation device and a material stacking rack, wherein the material stacking rack comprises a frame and a plurality of partition plates obliquely and crossly arranged in the frame, and the plurality of partition plates divide the frame into a plurality of material accommodating layers from top to bottom; one end of each of the upper and lower adjacent partition plates is fixedly arranged on the opposite side wall in the frame, an avoidance gap convenient for the passing of the pipe is formed between the other end of each partition plate and the other side wall of the frame, and the pipe positioned on the upper layer of the material layer enters the lower layer of the material layer through the avoidance gap; a discharge chute for supporting the discharge of the pipe is arranged in the avoiding gap at the bottommost layer in the frame; the minimum longitudinal height of the material placing layer positioned at the bottommost layer in the frame is larger than the diameter of one pipe and smaller than the superposed diameter of two pipes; the material stacking rack is characterized in that a material placing layer positioned at the topmost part of the frame is communicated with the outside, a suspension assembly used for supplementing the number of pipes into the frame is arranged on a wall body above the material stacking rack, the suspension assembly comprises a conveying track fixedly laid on the wall body, a suspension arm used for binding the pipes and a driving motor used for driving the suspension arm to move along the conveying track, and the suspension arm is arranged on the conveying track.

The chair leg preparation device comprises a cutting mechanism, a bending mechanism, an end part correction mechanism and a delivery mechanism, wherein the cutting mechanism, the bending mechanism and the end part correction mechanism are sequentially arranged from the head end to the tail end of the machine table, and the delivery mechanism is used for delivering the tubes among the cutting mechanism, the bending mechanism and the end part correction mechanism back and forth; the delivery mechanism comprises a sliding block for delivering the pipe, a first driving part for lifting the height of the sliding block and a second driving part for driving the sliding block to reciprocate and delivering transversely, and a plurality of brackets for supporting the pipe are arranged on the sliding block; the cutting mechanism is provided with a feed inlet, the cutting mechanism comprises a first cutter head used for cutting the pipe into required length and a clamping assembly used for clamping the pipe, the feed inlet is communicated with the clamping assembly, and the first cutter head can perform lifting cutting movement; the bending mechanism comprises an arc-shaped die holder and a pressing block, a cavity is arranged at the bottom of the pressing block and is matched with the arc-shaped die holder, the pressing block is positioned right above the arc-shaped die holder, the arc-shaped die holder is fixedly arranged on the machine table, and the pressing block can move up and down; the end correcting mechanism comprises a shifting assembly and an end correcting assembly, the shifting assembly is opposite to the end correcting assembly, the delivery mechanism is positioned between the shifting assembly and the end correcting assembly, the shifting assembly comprises a sliding seat and a third driving part for driving the sliding seat to move towards the end correcting assembly repeatedly, a propping tool for placing a bent end of a pipe and pushing the pulled pipe to move is arranged on the top surface of the sliding seat, the pipe to be corrected can extend into the end correcting assembly by virtue of forward movement of the sliding seat, the end correcting assembly comprises two pressing fixing pieces which are arranged in a radial direction and oppositely and a second cutter head for correcting the linear end of the cut pipe, the pressing fixing pieces act on two sides of the linear end of the extended pipe to fix the linear end of the pipe, the second cutter head can perform lifting correcting motion, and the corrected pipe can be moved out of the end correcting assembly by virtue of backward movement of the sliding seat; the discharge chute is right opposite to the feed inlet;

the clamping assembly comprises a lower clamping seat and an upper clamping seat, the lower clamping seat is fixedly arranged on the machine table, the top of the upper clamping seat is connected with an installation seat used for installing the first tool bit through an elastic piece, a lifting driving piece is arranged at the top of the installation seat, the upper clamping seat is provided with a through hole convenient for the first tool bit to pass through, and the installation seat, the upper clamping seat and the lower clamping seat penetrate through a guide column; the lower clamping seat and the upper clamping seat are respectively provided with a clamping groove, when the lower clamping seat and the upper clamping seat are closed, the two clamping grooves form a clamping channel, and the clamping channel is opposite to the feeding hole; the bottom of the lower clamping seat is provided with a funnel used for dropping waste materials generated by cutting the pipes, the lower clamping seat is provided with a leak hole, and the leak hole is located at the cutting position of the first cutter head.

In some examples, a first partition plate and a second partition plate are arranged in the frame, the first partition plate is located above the second partition plate, and the inclination of the first partition plate is larger than that of the second partition plate.

In some examples, a feeding assembly is arranged at one end of the discharge chute, the feeding assembly comprises a feeding cylinder and a feeding rod, the feeding rod is arranged on the feeding cylinder, and the feeding cylinder drives the feeding rod to push a pipe placed on the discharge chute to move towards the feeding hole; the other end of the discharge chute is provided with a third inductor for detecting whether the pipe on the discharge chute discharges normally.

In some examples, cutting mechanism still includes the response subassembly, the response subassembly is relative with the centre gripping subassembly position and is located delivery mechanism both sides, the response subassembly includes first bearing seat, screw rod and sets up the first inductor in the screw rod tip, the linear distance of first inductor and first tool bit is the cutting length of required tubular product, through the linear distance of the adjustable response piece of screw rod and first tool bit, first bearing seat is used for bearing tubular product in the cutting process, first inductor and centre gripping subassembly, first tool bit signal connection, triggers centre gripping subassembly, first tool bit motion when tubular product touches mutually with the response piece.

In some examples, the bending mechanism further comprises a pushing assembly, the pushing assembly is opposite to the arc-shaped die holder, the pushing assembly comprises a lifting seat, a pushing rod and a pushing cylinder, the pushing rod is connected with the pushing cylinder, and a lifting cylinder is arranged at the bottom of the lifting seat; the lifting seat is L-shaped, and a lifting groove used for lifting one end of the pipe which is not bent is arranged at the top of the longitudinal end of the lifting seat.

In some examples, a position adjusting mechanism for adjusting the delivery of the pipe from the bending mechanism is disposed between the bending mechanism and the end correcting mechanism, the position adjusting mechanism includes two fixing seats, a pushing cylinder and a pushing seat disposed on the pushing cylinder, the two fixing seats are respectively disposed on two sides of the sliding block, the two fixing seats are respectively used for supporting two ends of the pressed pipe, the surfaces of the fixing seats are in contact with the outer wall surface of the pipe, the pushing seat is disposed on one side of one of the fixing seats, and the side wall surface of the pushing seat facing the fixing seat is recessed to form an arc surface.

In some examples, the position adjusting mechanism and/or the end correcting mechanism is provided with a pressing assembly for assisting in pressing the delivered pipe, the pressing assembly comprises an air cylinder and an air rod connected with the air cylinder, and the air rod is positioned above the sliding block.

In some examples, a plurality of rollers for guiding the pipe feeding are arranged on the outer side wall of the feeding hole, wherein two rollers are arranged up and down, and the up-and-down distance can allow at least one pipe to slide; the feed inlet department is equipped with a second inductor that is used for detecting whether normal feeding of tubular product, and the inductive head of second inductor is up, and the inductive head of second inductor is all passed through to the feeding route of tubular product.

In some examples, the chair leg preparation device further comprises an outlet slide, and the outlet slide is obliquely arranged on the machine table; the head end of the discharging slideway is arranged on one discharging side of the end part correcting mechanism, the head end is provided with a U-shaped notch used for taking the prepared and formed pipe out of the bracket, and the bracket which is close to the U-shaped notch and supports the prepared and formed pipe moves to the U-shaped notch and descends; a storage box is placed at the bottom of the tail end of the discharging slide way, and the prepared and molded pipe slides into the storage box through the discharging slide way.

The invention adopts the technical scheme to realize the following effects: 1. a plurality of mechanisms are integrated on the same machine table, so that the occupied area in a plant is reduced; 2. the delivery mechanism delivers the materials to and from the mechanisms to form an automatic preparation and forming mode, so that the production efficiency is improved; 3. can save a large amount of tubular products so that the continuation of processing preparation through the material piling bin on the one hand, on the other hand tubular product can directly be processed from the removal of material piling bin to chair foot preparation facilities, has improved work efficiency and reduced time cost.

Drawings

Figure 1 is a view of an untreated pipe construction,

figure 2 is a schematic illustration of the formation of a shaped tube,

figure 3 is a schematic structural diagram of an embodiment of the present invention,

figure 4 is a schematic structural view of the delivery mechanism of the embodiment of figure 3,

figure 5 is a schematic diagram of the material stacking rack and hanging assembly of the embodiment of figure 3,

figure 6 is a schematic structural view of the cutting mechanism of the embodiment of figure 3,

figure 7 is a schematic structural view of the crimping mechanism of the embodiment of figure 3,

figure 8 is a schematic structural view of the position adjustment mechanism of the embodiment of figure 3,

figure 9 is a schematic structural view of the end correcting mechanism of the embodiment of figure 3,

figure 10 is a schematic view of the delivery mechanism delivering the tube to the outfeed chute and into the storage bin,

in the figure: the machine table 1, the delivery mechanism 2, the sliding block 21, the bracket 22, the second driving component 23, the first driving component 24, the cutting mechanism 3, the screw end 31, the screw 32, the first inductor 33, the first bearing seat 34, the roller 35, the second inductor 351, the upper clamping seat 36, the clamping groove 361, the lower clamping seat 362, the leak 363, the guide pillar 37, the first cutter head 38, the lifting cylinder 39, the hopper 391, the bending mechanism 4, the arc-shaped die holder 41, the pressing block 42, the pushing cylinder 43, the lifting seat 44, the pushing rod 45, the position adjusting mechanism 5, the pushing seat 51, the pushing cylinder 52, the fixing seat 53, the end correcting mechanism 6, the upright seat 61, the arc-shaped baffle plate 62, the third driving component 63, the sliding seat 64, the second cutter head 65, the pressing rod 66, the pressing cylinder 67, the cylinder 7, the gas rod 71, the discharging slideway 8, the U-shaped notch 81, the storage box 9, the frame 11, the first partition plate 112, the reinforcing rib 113, the first partition plate 114, the discharging groove 115, the feeding cylinder 116, the third inductor 117, the processing track 118, the non-formed pipe material A and the suspension arm B.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments described below are by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.

It is to be understood that the terms "a" and "an" are to be interpreted as meaning that a number of one element may be one in one embodiment or multiple in another embodiment, and the terms "a" and "an" are not to be interpreted as limiting the number.

The first embodiment is as follows:

referring to fig. 1 to 10 of the drawings attached to the description of the present invention, a chair leg preparation machine according to a preferred embodiment of the present invention includes a chair leg preparation device and a material stacking rack, the chair leg preparation device is configured to cut a tube and bend one end of the tube to prepare one of five-pointed star legs, as shown in fig. 1, a chair leg structure to be prepared and formed is provided, the material stacking rack is configured to store an unprocessed tube, the tube before being cut is a long cylindrical structure, and the material stacking rack is provided on a side station adjacent to the chair leg preparation device; the chair leg preparation device is provided with a feeding hole, the material stacking frame is provided with a discharging position, the discharging position is opposite to the feeding hole, and the tube is moved out of the discharging position and is fed into the feeding hole for preparation; the upper wall body of the material stacking rack is provided with a suspension assembly used for supplementing the number of the pipes into the frame 11, when a batch of pipes are newly fed into a factory or the number of the pipes in the frame is reduced, the pipes which are just fed can be bound and packed by the suspension assembly and then moved to the position above the frame 11, and then the pipes can fall into the frame 11 after the binding is released, so that the cost and the time of manual carrying are effectively reduced, and the working efficiency and the subsequent preparation speed are improved; the chair leg preparation device comprises a cutting mechanism 3, a bending mechanism 4, an end part correction mechanism 6 and a delivery mechanism 2 which is used for delivering the pipes back and forth among the cutting mechanism 3, the bending mechanism 4 and the end part correction mechanism 6, wherein the cutting mechanism 3, the bending mechanism 4 and the end part correction mechanism 6 are sequentially arranged from the head end to the tail end of a machine table 1; the invention has the general innovation points that 1, a plurality of mechanisms are integrated on the same machine table 1, so that the occupied area in a factory building is reduced; 2. the delivery mechanism 2 delivers the materials to and from the mechanisms to form an automatic preparation and forming mode, so that the production efficiency is improved; 3. can save a large amount of tubular products so that the continuation of processing preparation through the material piling bin on the one hand, on the other hand tubular product can directly be processed from the removal of material piling bin to chair foot preparation facilities, has improved work efficiency and reduced time cost.

Specifically, the suspension assembly comprises a conveying track 118 fixedly laid on a wall body, a suspension arm 119 used for binding the pipe and a driving motor driving the suspension arm 119 to move along the conveying track 118, the suspension arm 119 is arranged on the conveying track 118, the bottom end of the suspension arm 119 can be provided with a hook or a binding band, the pipe is bound and transported into the frame 11 to be unbound, and the pipe naturally falls into the frame 11 to be stored, so that the technical scheme can provide the replenishment efficiency; of course, the number of the pipes can be supplemented in a manual conveying mode, and the suspension assembly is not required to be arranged if the pipes are supplemented manually.

The material piling bin comprises a frame 11 and a plurality of partition plates which are obliquely and crossly arranged in the frame 11, wherein the crossly arrangement means that the end parts of the partition plates which are adjacent up and down are respectively and fixedly arranged on the inner side walls of the symmetrical frame 11, an avoidance gap which is convenient for the passing of the pipe is formed between the other end of the partition plates and the other side wall of the frame 11, the pipe positioned on the upper layer of the material piling bin enters the lower layer of the material piling bin through the avoidance gap, in other words, the action path from the first layer of the material piling bin to the final discharging of the pipe is S-shaped; the minimum longitudinal height of the bottom layer of the material placing layer in the frame 11 is larger than the diameter of one pipe and smaller than the superposed diameter of two pipes, the design aims at ensuring that each pipe of the bottom layer of the material placing layer slides in sequence, two or even more pipes cannot slide into the discharge chute 115 together, if the stacks fall into the discharge chute 115, the discharge progress is influenced, the longitudinal heights of the material placing layers of other layers are not required, and the material placing layer at the top of the frame 11 is communicated with the outside, namely, no cover body is arranged; in this embodiment, a total of two partition plates are provided, that is, the two partition plates are divided into two storage layers, that is, a first partition plate 112 and a second partition plate 114 are provided in the frame 11, the first partition plate 112 is located above the second partition plate 114, and an inclination of the first partition plate 112 is greater than that of the second partition plate 114, so that a slope of the first partition plate 112 is large, which is beneficial to sliding the pipes of the first partition plate 112 into the second storage layer, and a slope of the second partition plate 114 is gentle, which is beneficial to reducing a sliding speed of the pipes located in the second storage layer, and the pipes orderly fall into the discharge chute 115; of course, in some embodiments, the second partition 114 may not be sloped, and the pipe may be manually moved into the discharge chute 115; in order to enhance the bearing capacity of the first separating plate 112, a reinforcing rib 113 is arranged between the bottom of the first separating plate 112 and the side wall of the frame 11, the reinforcing rib 113 forms a triangular area with the first separating plate 112 and the side wall of the frame 11, in some embodiments, the reinforcing rib 113 is arranged in parallel with the second separating plate 114, at this time, the minimum longitudinal height of the bottommost layer, i.e. the distance between the reinforcing rib 113 and the second separating plate 114, is aimed at further ensuring that the pipe material cannot slide down together when being stacked.

In addition, one end of the discharge chute 115 is provided with a feeding assembly, the feeding assembly comprises a feeding cylinder 116 and a feeding rod, the feeding rod is arranged on the feeding cylinder 116, and the feeding cylinder 116 drives the feeding rod to push the pipe placed on the discharge chute 115 to move towards the feeding hole; the other end of the discharging groove 115 is provided with a third sensor 117 for detecting whether the pipe on the discharging groove 115 is normally discharged or not, the third sensor 117 is an infrared sensor, the sensing head of the third sensor faces upwards, the pipe passes through the sensing head when discharging, if the third sensor 117 does not sense that the pipe passes through for a long time, the discharging program or the pipe accumulation and the frame 11 cannot smoothly slide out, and a worker timely overhauls the problem to recover the operation; of course, in some embodiments, the tube can be moved from the discharge chute 115 to the feed opening by manual sliding without a feed assembly.

The pipe cutting machine comprises a machine table 1, and is characterized in that a cutting mechanism 3, a bending mechanism 4, an end correcting mechanism 6, and a delivery mechanism 2 for delivering a pipe to and fro among the cutting mechanism 3, the bending mechanism 4, and the end correcting mechanism 6 are sequentially arranged from a head end to a tail end on the machine table 1, wherein the delivery mechanism 2 comprises a slider 21 for delivering the pipe, a first driving part 24 for lifting the height of the slider 21, and a second driving part 23 for driving the slider 21 to and fro to deliver the pipe transversely, a plurality of brackets 22 for supporting the pipe are arranged on the slider 21, the first driving part 24 is a lifting cylinder, and the second driving part 23 is a delivery cylinder; the lifting cylinder longitudinally lifts the sliding block 21 by a certain height, so that the cutting mechanism 3, the bending mechanism 4 and the end correcting mechanism 6 are taken out by the bracket 22, then the pipe in the bracket 22 originally corresponding to the cutting mechanism 3 is transversely moved into the bending mechanism 4 by the transverse movement of the delivery cylinder, and the rest is done in turn, the lifting cylinder descends, so that the pipe is respectively placed in the corresponding mechanisms for processing, meanwhile, the sliding block 21 is driven by the delivery cylinder to move back to the original position, the movement is repeated, the pipe is sequentially processed by the cutting mechanism 3, the bending mechanism 4 and the end correcting mechanism 6, and finally the required chair leg is prepared and formed; the cutting mechanism 3 is provided with a feed port, the feed port refers to a feed port of the above-mentioned chair leg preparation device, the cutting mechanism 3 comprises a first tool bit 38 for cutting a pipe into a required length and a clamping component for clamping the pipe, the feed port is communicated with the clamping component, the pipe is clamped and positioned by the clamping component before being ready to be cut after entering from the feed port, the first tool bit 38 can perform lifting and cutting movement, a lifting cylinder 39 for driving the first tool bit 38 to lift is arranged on the first tool bit 38, wherein the clamping component comprises a lower clamping seat 362 and an upper clamping seat 36, in the embodiment, the lower clamping seat 362 is fixedly arranged on the machine platform 1, the top of the upper clamping seat 36 is connected with a mounting seat for mounting the first tool bit 38 through an elastic piece, a lifting driving piece, namely the lifting cylinder 39, is arranged on the top of the mounting seat, the upper clamping seat 36 is provided with a through hole for the first tool bit 38 to pass through, and the mounting seat, the upper clamping seat 36 and the lower clamping seat 362 are penetrated through a guide column 37; the lower clamping seat 362 and the upper clamping seat 36 are respectively provided with a clamping groove 361, when the lower clamping seat 362 and the upper clamping seat 36 are closed, the two clamping grooves 361 form a clamping channel, and the clamping channel is opposite to the feed inlet; in the scheme, the clamping grooves 361 are all arc-shaped structures, the radian of the clamping grooves is consistent with that of the pipe, and the clamping grooves 361 of the lower clamping seat 362 are right opposite to the feeding hole, so that part of the pipe wall of the pipe entering from the feeding hole is placed in the clamping grooves 361 of the lower clamping seat 362, the upper clamping seat 36 moves towards the lower clamping seat 362 along the guide column 37 under the driving of the lifting cylinder 39, the pipe is clamped after the pipe moves to be closed with the lower clamping seat 362, the lifting cylinder 39 continues to drive the mounting seat and the first cutter head 38 to descend, the first cutter head 38 passes through the through hole to cut the pipe positioned in the clamping channel, the elastic piece between the mounting seat and the upper clamping seat 36 is compressed and deformed, when the lifting cylinder 39 drives the mounting seat and the first cutter head 38 to ascend, the elastic piece gradually recovers and deforms until the upper clamping seat 36 is driven by the lifting cylinder 39 to ascend, the elastic member has a section of tensile deformation state, in the present technical solution, the clamping assembly is arranged to prevent the tube from shaking during cutting, the elastic member has a buffering effect between the mounting seat and the upper clamping seat 36 during lifting, of course, in some other embodiments, the lower clamping seat 362 may be arranged to be movable, the upper clamping seat 36 is fixedly arranged, or the upper clamping seat 36 and the lower clamping seat 362 are both movable, the movable solution needs to ensure the condition that the clamping channel is opposite to the feed inlet when the lower clamping seat 362 and the upper clamping seat 36 are closed, in addition, in this embodiment, in order to prevent the waste chips generated by cutting the lower clamping seat 362 from blocking and preventing subsequent cutting operation, therefore, a funnel 391 for dropping the waste materials generated by cutting the tube is arranged at the bottom of the lower clamping seat 362, the lower clamping seat 362 is provided with a leakage hole 363, the leaking hole 363 is located at the cutting position of the first cutter head 38, and the cut waste material directly slides into the funnel 391 from the leaking hole 363 and is discharged from the funnel 391, so as to ensure the normal and accurate cutting operation of the cutting mechanism 3.

In addition, the cutting start of the above solution can be performed manually, for example, a pipe is inserted into the feed port manually, the lifting cylinder 39 is triggered to start cutting, and in order to further improve the cutting efficiency, as an optimized technical solution, the cutting mechanism 3 further includes a sensing component, the sensing component is located opposite to the clamping component and located at two sides of the delivery mechanism 2, the sensing component includes a first bearing seat 34, a screw rod 32 and a first sensor 33 disposed at the end 31 of the screw rod, the linear distance between the first sensor 33 and the first tool bit 38 is the cutting length of the required pipe, the linear distance between the sensing component and the first tool bit 38 can be adjusted through the screw rod 32, the first bearing seat 34 is used for bearing the pipe during cutting, the first sensor 33 is in signal connection with the clamping component and the first tool bit 38, when the pipe touches the sensing component, the clamping component and the first tool bit 38 are triggered to move, and the screw rod 32 is transversely adjustably connected to the bearing seat, the first sensor 33 is a touch sensor, that one end of the pipe extends into the feed port from the feed port, and the other end of the pipe is placed on the wall surface of the sensing seat 362 for cutting the required pipe; and first inductor 33 is feedback signal to controller when contacting with tubular product, and the controller will order down to lift cylinder 39, carries out the centre gripping and cuts the operation, and automatic cutting operation is then realized to this mode, and is more convenient and high-efficient.

The bending mechanism 4 comprises an arc die holder 41 and a pressing block 42, a die cavity is arranged at the bottom of the pressing block 42, the die cavity is matched with the arc die holder 41, the pressing block 42 is located right above the arc die holder 41, the arc die holder 41 is fixedly arranged on the machine table 1, the pressing block 42 can move up and down, a cut pipe is delivered to the bending mechanism 4 from the cutting mechanism 3 through the delivery of the delivery mechanism 2, one end of the pipe is placed on the arc die holder 41, then the pressing block 42 is pressed down to bend the end to form a bending chair leg, a pressure air cylinder for driving the pressing block 42 to lift is arranged on the pressing block 42, and under the technical scheme, the size of the bending section at the end of the pipe is fixed, so that the scheme is further optimized that the bending mechanism 4 further comprises a propelling component, the propelling component is opposite to the arc die holder 41, the propelling component comprises a lifting seat 44, a propelling rod 45 and a propelling air cylinder 43, the propelling rod 45 is connected with the propelling cylinder 43, and the lifting cylinder is arranged at the bottom of the lifting seat 44; the lifting seat 44 is in an L shape, a lifting groove for lifting one end of the pipe which is not bent is arranged on the top of the longitudinal end of the lifting seat, when the delivery mechanism 2 delivers the cut pipe into the bending mechanism 4, the lifting seat 44 is driven by a lifting cylinder to move upwards and ascend to be opposite to the arc-shaped die holder 41, one end of the pipe is placed on the arc-shaped die holder 41, the other end of the pipe is placed in the lifting groove of the lifting seat 44, if the length of the bending section of the pipe needs to be increased, the pushing cylinder 43 needs to be started to drive the pushing rod 45, the pushing rod 45 pushes the pipe to further extend into the arc-shaped die holder 41, and the length of the bending section formed by pressing can be controlled by the pushing assembly; the arc die holder 41 and the pushing assembly are respectively positioned at two sides of the delivery mechanism 2.

The end correcting mechanism 6 is used for processing the port trimming of the straight end of the end part of the pipe which is not bent, the port of the pipe before being processed is a round port, and the pipe needs to be corrected into a rectangular port with an arc-shaped edge for the convenience of the later chair leg welding, specifically, the end correcting mechanism 6 comprises a shifting assembly and an end correcting assembly, the shifting assembly is opposite to the end correcting assembly, the delivery mechanism 2 is positioned between the shifting assembly and the end correcting assembly, the shifting assembly comprises a sliding seat 64 and a third driving component 63 for driving the sliding seat 64 to repeatedly move towards the end correcting assembly, the top surface of the sliding seat 64 is provided with an abutting tool for placing the bent end of the pipe and pushing and pulling the pipe to move, the pipe to be corrected can extend into the end correcting assembly by virtue of the forward movement of the sliding seat 64, the end correcting assembly comprises two pressing fixing pieces which are arranged in a radial direction and a second cutter head 65 for correcting the straight end of the pipe, the two cutter heads 65 acting on the straight end of the extended pipe are fixed, the second cutter head 65 can perform lifting correcting movement, and the corrected pipe can be moved out of the end correcting assembly by virtue of the backward movement of the sliding seat 64; in this embodiment, the top surface of the sliding seat 64 is provided with an upright post 61 and an arc-shaped baffle plate 62, the upright post 61 is opposite to the concave surface of the arc-shaped baffle plate 62, and the abutting tool comprises the upright post 61 and the arc-shaped baffle plate 62, because when a pipe is delivered to the end part correcting mechanism 6, the bent end of the pipe is placed between the upright post 61 and the arc-shaped baffle plate 62, the straight end is placed towards the end part correcting assembly, when the straight end needs to be inserted into the end part correcting assembly, the third driving part 63 pushes the air cylinder to start, so that the sliding seat 64 is driven to move, and the concave surface of the arc-shaped baffle plate 62 abuts against the bent end and pushes the pipe to be inserted into the end part correcting assembly; when the linear end of the pipe needs to be moved back after being processed, the third driving part 63 pushes the air cylinder to start, the sliding seat 64 is driven to move back, the upright post 61 is abutted against the inner side wall of the bent end, and the pipe is pulled out from the end part correcting assembly; the pressing fixing piece comprises a pressing air cylinder 67 and pressing rods 66 arranged on the pressing air cylinder 67, the two pressing air cylinders 67 respectively drive the two pressing rods 66 to move towards opposite directions, the pressing rods 66 respectively act on two side walls of the straight line end of the pipe, and the straight line end of the pipe is deformed into a rectangular opening with radian edges by means of opposite pressing acting forces of the two pressing rods 66; in addition, in order to prevent the pipe from shifting in the process of extending into the end correcting assembly, in this embodiment, the end correcting mechanism 6 is provided with a pressing assembly for assisting in pressing the pipe to be delivered, the pressing assembly includes a cylinder (7) and an air rod 71 connected to the cylinder (7), the air rod 71 is located above the slider 21, when the delivery mechanism 2 delivers the pipe into the end correcting mechanism 6, the air rod 71 moves downwards to press the middle position of the pipe, but does not completely press the pipe, so as to prevent the pipe from deforming, and after the pipe is pressed, the pushing cylinder is started to drive the sliding base 64 to push the pipe to displace.

In the above solution, the arrangement of the pushing assembly is mentioned, and the pushing assembly can adjust its original position, so that the position from the bending mechanism 4 to the end correcting mechanism 6 also needs to be reset, in this embodiment, a position adjusting mechanism 5 is arranged between the bending mechanism 4 and the end correcting mechanism 6, the position adjusting mechanism 5 includes two fixed bearing seats 53, a pushing cylinder 52 and a pushing seat 51 arranged on the pushing cylinder 52, the two fixed bearing seats 53 are respectively located at two sides of the slider 21, the two fixed bearing seats 53 are respectively used for supporting two ends of the bent tube, the surfaces of the fixed bearing seats 53 are in contact with the outer wall surface of the tube, the pushing seat 51 is located at one side of one of the fixed bearing seats 53, and a side wall surface of the pushing seat 51 facing the fixed bearing seat 53 is recessed to form an arc surface; specifically, the fixed bearing seat 53 comprises a base and a bearing seat, the bearing seat is elastically arranged at the top of the base, the bearing seat is elastically arranged to be a spring, a placing groove is arranged at the bottom of the bearing seat, pipe walls at two ends of the pipe are respectively placed in the placing groove to be positioned, and the pipe walls are in contact with the wall surface of the placing groove; in order to prevent the pipe from moving out of the placing groove during moving, in the embodiment, the position adjusting mechanism 5 is also provided with the pressing component, when the delivery mechanism 2 delivers the pipe and places the pipe in the position adjusting mechanism 5, the air rod 71 moves downwards to press the middle position of the pipe, but is not completely pressed to prevent the pipe from deforming, after the pipe is pressed, the pushing cylinder 52 is started to drive the pushing seat 51 to push the pipe to move, the movement is opposite to the port of the end part correcting mechanism 6, the spring starts a buffering function, namely, when the pressing component presses the pipe, the spring is also compressed half gradually, then the pressing is cancelled, and the spring is reset to drive the pipe to buffer and move upwards.

In addition, a plurality of rollers 35 for guiding the feeding of the pipes are arranged on the outer side wall of the feeding hole, wherein two rollers 35 are arranged up and down, and the up-and-down distance can allow one pipe to slide; the feed inlet department is equipped with a second inductor 351 that is used for detecting whether normal feeding of tubular product, and second inductor 351's inductive head is up, and the feeding route of tubular product all passes through second inductor 351's inductive head, if it slips to have tubular product in the predetermined interval, then proves that this equipment is in normal operation, if not sense tubular product for a long time and slide, then triggers the police dispatch newspaper, reminds the staff to overhaul or the feed supplement.

In order to automatically discharge the prepared tube, in this embodiment, the chair leg preparation device further includes a discharge slideway 8, and the discharge slideway 8 is obliquely arranged on the machine table 1; the head end of the discharging slideway 8 is arranged on the discharging side of the end correcting mechanism 6, the head end is provided with a U-shaped notch 81 for taking the prepared and formed pipe out of the bracket 22, and the bracket 22 which is close to the U-shaped notch 81 and supports the prepared and formed pipe moves to the U-shaped notch 81 and descends; a storage box 9 is placed at the bottom of the tail end of the discharging slide rail 8, and the prepared and molded pipe slides into the storage box 9 through the discharging slide rail 8; the slide block 21 ascends along with the driving of the lifting cylinder, the bracket 22 on the slide block 21 takes out the prepared and formed pipe placed in the end correcting mechanism 6 due to the ascending, then the slide block 21 transversely moves through the driving of the delivery cylinder, so that the prepared and formed pipe moves into the U-shaped notch 81 along with the bracket 22, then the lifting cylinder descends, the pipe is separated from the bracket 22 by the head end, and the pipe automatically slides down to the storage box 9 along the discharging slide way 8 to be summarized.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention.

The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims

1. The chair leg preparation machine is characterized by comprising a chair leg preparation device and a material stacking rack, wherein the material stacking rack comprises a frame (11) and a plurality of partition plates which are obliquely and crossly arranged in the frame (11), and the plurality of partition plates divide the interior of the frame (11) into a plurality of material accommodating layers from top to bottom in sequence; one end of each of the upper and lower adjacent partition plates is fixedly arranged on the opposite side wall in the frame (11), an avoidance gap convenient for the passing of the pipe is formed between the other end of each partition plate and the other side wall of the frame (11), and the pipe positioned on the upper layer of the material layer enters the lower layer of the material layer through the avoidance gap; a discharge chute (115) for supporting the discharge of the pipe is arranged in the avoiding gap at the bottommost layer in the frame (11); the minimum longitudinal height of the material placing layer at the bottommost layer in the frame (11) is larger than the diameter of one pipe and smaller than the superposed diameter of two pipes; the material placing layer positioned at the topmost part of the frame (11) is communicated with the outside, a hanging assembly used for supplementing the number of the pipes into the frame (11) is arranged on a wall body above the material stacking rack, the hanging assembly comprises a conveying track (118) fixedly laid on the wall body, a hanging arm (119) used for binding the pipes and a driving motor used for driving the hanging arm (119) to move along the conveying track (118), and the hanging arm (119) is arranged on the conveying track (118);

the chair leg preparation device comprises a cutting mechanism (3), a bending mechanism (4), an end part correction mechanism (6) and a delivery mechanism (2) which is used for delivering the tubes among the cutting mechanism (3), the bending mechanism (4) and the end part correction mechanism (6) back and forth, wherein the cutting mechanism (3), the bending mechanism (4) and the end part correction mechanism (6) are sequentially arranged from the head end to the tail end of the machine table (1); the delivery mechanism (2) comprises a sliding block (21) for delivering the pipe, a first driving part (24) for lifting the height of the sliding block (21) and a second driving part (23) for driving the sliding block (21) to move back and forth to deliver the pipe transversely, and a plurality of brackets (22) for supporting the pipe are arranged on the sliding block (21); the cutting mechanism (3) is provided with a feed inlet, the cutting mechanism (3) comprises a first tool bit (38) used for cutting the pipe into required length and a clamping assembly used for clamping the pipe, the feed inlet is communicated with the clamping assembly, and the first tool bit (38) can perform lifting cutting movement; the bending and pressing mechanism (4) comprises an arc-shaped die holder (41) and a pressing block (42), a die cavity is arranged at the bottom of the pressing block (42), the die cavity is matched with the arc-shaped die holder (41), the pressing block (42) is positioned right above the arc-shaped die holder (41), the arc-shaped die holder (41) is fixedly arranged on the machine table (1), and the pressing block (42) can move up and down; the end correcting mechanism (6) comprises a shifting assembly and an end correcting assembly, the shifting assembly is opposite to the end correcting assembly, the delivery mechanism (2) is positioned between the shifting assembly and the end correcting assembly, the shifting assembly comprises a sliding seat (64) and a third driving part (63) for driving the sliding seat (64) to repeatedly move towards the end correcting assembly, an abutting tool for placing a bent end of a pipe and pushing and pulling the pipe to move is arranged on the top surface of the sliding seat (64), the pipe to be corrected can extend into the end correcting assembly by means of forward movement of the sliding seat (64), the end correcting assembly comprises two pressing fixing pieces which are arranged in a radial direction and a second tool bit (65) for correcting a linear end of a cut pipe, the pressing fixing pieces act on two sides of the linear end of the extended pipe to fix the linear end of the extended pipe, the second tool bit (65) can perform lifting correcting movement, and the corrected pipe can be moved out of the end correcting assembly by means of backward movement of the sliding seat (64); the discharge chute (115) is opposite to the feed inlet;

the clamping assembly comprises a lower clamping seat (362) and an upper clamping seat (36), the lower clamping seat (362) is fixedly arranged on the machine table (1), the top of the upper clamping seat (36) is connected with a mounting seat used for mounting the first tool bit (38) through an elastic piece, a lifting driving piece is arranged at the top of the mounting seat, the upper clamping seat (36) is provided with a through hole convenient for the first tool bit (38) to pass through, and the mounting seat, the upper clamping seat (36) and the lower clamping seat (362) penetrate through a guide column (37); the lower clamping seat (362) and the upper clamping seat (36) are respectively provided with a clamping groove (361), when the lower clamping seat (362) and the upper clamping seat (36) are closed, the two clamping grooves (361) form a clamping channel, and the clamping channel is opposite to the feeding hole; the bottom of the lower clamping seat (362) is provided with a hopper (391) for waste materials generated by cutting of the falling pipe, the lower clamping seat (362) is provided with a leakage hole (363), and the leakage hole (363) is located at the cutting position of the first cutter head (38).

2. The chair foot preparation machine according to claim 1, characterized in that a first separating plate (112) and a second separating plate (114) are arranged in the frame (11), the first separating plate (112) is located above the second separating plate (114), and the first separating plate (112) has a greater inclination than the second separating plate (114).

3. The chair leg preparation machine according to claim 2, characterized in that a feeding component is arranged at one end of the discharging groove (115), the feeding component comprises a feeding cylinder (116) and a feeding rod, the feeding rod is arranged on the feeding cylinder (116), and the feeding rod is driven by the feeding cylinder (116) to push the pipe placed on the discharging groove (115) to move towards the feeding hole; and the other end of the discharge chute (115) is provided with a third sensor (117) for detecting whether the pipe on the discharge chute (115) normally discharges.

4. The chair foot preparation machine according to claim 1, characterized in that the cutting mechanism (3) further comprises a sensing component, the sensing component is opposite to the clamping component and is positioned at two sides of the delivery mechanism (2), the sensing component comprises a first bearing seat (34), a screw rod (32) and a first sensor (33) arranged at the end part (31) of the screw rod, the linear distance between the first sensor (33) and the first cutter head (38) is the cutting length of the required pipe, the linear distance between the sensing component and the first cutter head (38) can be adjusted through the screw rod (32), the first bearing seat (34) is used for bearing the pipe in the cutting process, the first sensor (33) is in signal connection with the clamping component and the first cutter head (38), and the clamping component and the first cutter head (38) are triggered to move when the pipe is contacted with the sensing component.

5. The chair foot preparation machine according to claim 1, characterized in that the bending mechanism (4) further comprises a pushing assembly, the pushing assembly is opposite to the arc-shaped die holder (41), the pushing assembly comprises a lifting seat (44), a pushing rod (45) and a pushing cylinder (43), the pushing rod (45) is connected with the pushing cylinder (43), and the lifting cylinder is arranged at the bottom of the lifting seat (44); the lifting seat (44) is L-shaped, and a lifting groove used for lifting one end of the pipe which is not bent is arranged at the top of the longitudinal end of the lifting seat.

6. The chair foot preparation machine according to claim 5, characterized in that a position adjusting mechanism (5) for adjusting the delivery of the tube from the bending mechanism (4) is arranged between the bending mechanism (4) and the end correcting mechanism (6), the position adjusting mechanism (5) comprises two fixed bearings (53), a pushing cylinder (52) and a pushing seat (51) arranged on the pushing cylinder (52), the two fixed bearings (53) are respectively arranged at two sides of the sliding block (21), the two fixed bearings (53) are respectively used for supporting two ends of the pressed tube, the surfaces of the fixed bearings (53) are in contact with the outer wall surface of the tube, the pushing seat (51) is arranged at one side of one fixed bearing (53), and the side wall surface of the pushing seat (51) facing the fixed bearing (53) is recessed to form an arc surface.

7. The chair foot preparation machine according to claim 6, characterized in that the position adjusting mechanism (5) and/or the end correcting mechanism (6) is provided with a pressing assembly for assisting in pressing the delivered tubing, the pressing assembly comprising a cylinder (7) and an air rod (71) connected to the cylinder (7), the air rod (71) being located above the slider (21).

8. The chair leg preparation machine according to claim 1, characterized in that a plurality of rollers (35) for guiding the feeding of the tubes are arranged on the outer side wall of the feeding hole, wherein two rollers (35) are arranged up and down, and the distance between the upper and lower rollers can allow at least one tube to slide; feed inlet department is equipped with one and is used for detecting whether normal second inductor (351) of feeding of tubular product, and the inductive head of second inductor (351) is up, and the inductive head of second inductor (351) is all passed through in the feeding path of tubular product.

9. The chair leg preparation machine according to claim 1, characterized in that the chair leg preparation device further comprises an ejection slide (8), and the ejection slide (8) is obliquely arranged on the machine platform (1); the head end of the discharging slide way (8) is arranged on the discharging side of the end part correcting mechanism (6), a U-shaped notch (81) used for taking the prepared and formed pipe out of the bracket (22) is arranged at the head end, and the bracket (22) which is close to the U-shaped notch (81) and supports the prepared and formed pipe moves to the U-shaped notch (81) and descends; a storage box (9) is placed at the bottom of the tail end of the discharging slide rail (8), and the prepared and formed pipe slides into the storage box (9) through the discharging slide rail (8).