CN208470722U - A kind of floating table - Google Patents

Abstract

The utility model discloses a kind of floating table, the floating table includes long rack, movable processing device and Floatable supporting mechanism；The movable processing device can be moved along the length direction of the long rack, and the movable processing device is equipped with hold-down devices；The Floatable supporting mechanism includes several assemblies, several described assemblies are arranged along the length direction spacing of the long rack, the assembly upper end is provided with conveying roller, the conveying roller is axially perpendicular to the length direction setting of the long rack, its described hold-down devices, which can push the assembly contacted, in the movable processing device moving process declines the conveying roller position, and the assembly is equipped with automatic reset mechanism.Floating table provided by the utility model is reasonable in design, realizes support and the transmission process of floating.

Description

A kind of floating table

Technical field

The utility model belongs to production conveying equipment field more particularly to a kind of floating table.

Background technique

In the production process of mental section, it is often necessary to profile is conveyed and is supported, common profile conveying and Support generallys use conveyer belt, conveying roller etc..In profile production process, some process units need mobile to realize profile Processing, if being transmitted or being supported using the fixed conveyer belt in position or conveying roller, may hinder or influence correlation Produce the movement of movable processing device.

Such as in the production process that aluminum profile squeezes out, it is corresponding continuous that aluminium bar is usually put into extrusion on extrusion equipment Strip product, formed product needs to carry out online joint quenching process by quenching apparatus here, to improve the machine of aluminum profile Tool performance, while the strip aluminum profile for also needing entirely to squeeze out is drawn, and is needed again after entirely short aluminium bar extrusion molding is complete It is cut off, length is very long after being squeezed out due to the aluminum profile of extrusion, needs to be arranged support conveying dress in aluminum profile bottom end It sets, to prevent the deformation of aluminum profile, affects the quality that entire aluminum profile squeezes out.If but using conventional conveying roller, conveying roller It influences whether the advance of traction machine grip holder or influences the movement of cutting equipment.

Utility model content

The purpose of this utility model is to provide a kind of floating tables, influence life to solve the support structure for conveying of existing profile The technical problem of the movement of the movable processing device of production.

To solve the above problems, the utility model provides a kind of floating table, the floating table includes that long rack, movement add Tooling is set and Floatable supporting mechanism；The movable processing device can be moved along the length direction of the long rack, and the movement adds Tooling has installed hold-down devices；The Floatable supporting mechanism includes several assemblies, several described assemblies are along the length The length direction spacing of rack is arranged, and the assembly upper end is provided with conveying roller, and the conveying roller is axially perpendicular to the length The length direction of rack, the assembly that its described hold-down devices can will contact in the movable processing device moving process Body pushing declines the conveying roller position, and the assembly is equipped with automatic reset mechanism.

Further, the assembly further includes that two bearing blocks, both ends are separately mounted on two bearing blocks Shaft, the bearing piece being fixed in the shaft and lever block；The lever block includes resistance arm and power arm, the resistance arm with The power arm connection, the lever block is using the fixed connection place with the shaft as balance pivot；The conveying roller is provided with Axis, the resistance arm end and the bearing piece distinguish the both ends that common rotation supports the axis, the conveying roller with it is described Shaft is parallel；Pressing down section is installed on the resistance arm of the lever block, the pressing down section be set to the resistance arm end with it is described Between shaft；The separate one end with the resistance arm junction of the power arm of the lever block is connected with the machine that automatically resets Structure.

Further, the pressing down section can be pressed down and the conveying roller will be driven using the axis of the shaft as under axial direction It swings.

Further, the automatic reset mechanism includes chain, gear, clump weight；It is moved with described one end of the chain The separate one end with the resistance arm junction of the arm of force is connect, and the other end of the chain connects the clump weight, the gear Chain described in support is simultaneously engaged with the chain；Pass through the rotation of gear described in setting gear shaft rotational support.

Further, most in short-term, the resistance arm supports the conveying to the length of chain between the gear and power arm Roller turns to right above the shaft.

Further, under the reset response of automatic reset mechanism, it is high that the conveying roller of all assemblies is in same support Degree.

Further, the movable processing device includes processing platform, and the processing platform is equipped with production and processing device, The hold-down devices are set to the side of the processing platform, and convex under the relatively described mobile platform of the hold-down devices.

Further, the pressing down section is deep groove ball bearing.

Further, the hold-down devices include horizontally disposed bottom, the bevel edge that is connect respectively with bottom both ends, Two bevel edges and bottom formed it is wealthy under narrow funnel type；The hold-down devices can be along the water perpendicular to the conveying roller Square to moving back and forth, to move direction of advance as front side in moving process, the bevel edge of the front side of the hold-down devices can be with Pressing down section contact, and pressing down section is depressed into the lower section of the bottom of the hold-down devices.

Further, the long rack includes the long side plate of symmetrically arranged two levels and stabilizer blade along its length；Institute Assembly is stated to be mounted between two long side plates of level；Two bearing blocks of each assembly are separately mounted to On two long side plates of level, length direction of the shaft perpendicular to the long rack, the stabilizer blade support level Long side plate；It is equipped with perpendicular riser below the long side plate of level, described gear shaft one end is vertically fixed on the riser On, the other end installs the gear；The riser is arranged along the length direction of the long rack.

It is had the following beneficial effects: with a technical solution in above-mentioned technical proposal

1) the utility model provides a kind of floating table, is provided with Floatable supporting mechanism, and Floatable supporting mechanism includes several A assembly cooperation supports and conveying profile, and the movable processing device on floating table is provided with hold-down devices, makes mobile processing dress Set in moving process by the assembly contacted push, and the assembly that other are not contacted with movable processing device then after Continuous support conveying profile, it is achieved that the movement that will not influence movable processing device adds while the support and conveying of profile Work.

2) the utility model provides a kind of floating table, is provided with movable processing device, and movable processing device is equipped with Hold-down devices, the hold-down devices can move back and forth along the horizontal direction perpendicular to the conveying roller, can be by the pressing down section It pushes, so that resistance arm be made to rotate finally down, the position of conveying roller is driven to decline, therefore the mobile processing of movable processing device Conveying roller can be made to realize position decline to avoid, without additionally driving assembly using other driving mechanisms again in the process； And use automatic reset mechanism to pull chain to pull the power arm to realize the reset of conveying roller by clump weight, because This automatic reset mechanism is resetted without other electric devices, and reset mode is simple and fast, laborsaving, environmental protection and energy saving, height Effect.

Detailed description of the invention

Fig. 1 is the long rack of the floating table of the utility model embodiment and the structural schematic diagram of assembly cooperation；

Fig. 2 is the structural schematic diagram of the assembly of the utility model embodiment；

Fig. 3 is the hold-down devices and pressing down section engagement process schematic diagram of the utility model embodiment；

A kind of signal for embodiment that Fig. 4 is the production and processing device of the utility model embodiment when being cutter device Figure.

Attached drawing mark explanation:

1- conveying roller；2- bearing block；3- shaft；4- bearing piece；5- lever block；501- resistance arm；502- power arm；In 6- Axis；7- chain；8- gear；801- gear shaft；9- clump weight；10- pressing down section；11- hold-down devices；111- waist；The bottom 112-； 113- top margin；12- long rack；The horizontal long side plate of 121-；122- stabilizer blade；123- riser；13- protrusive board；14- support shaft；15- is mobile Guide rail；16- cutter device；17- cutting processing platform；18- disc cutter.

Specific embodiment

The exemplary embodiments for embodying the utility model features and advantages will describe in detail in the following description.It should be understood that It is that the utility model there can be various variations in different embodiments, does not all depart from the scope of the utility model, and The descriptions and illustrations are essentially for illustration purposes, rather than to limit the utility model.

As shown in Figure 1, an embodiment of the present invention provides a kind of floating table, the floating table includes long rack 12, movable processing device (being not drawn into figure) and Floatable supporting mechanism；The movable processing device can be along the long rack 12 Length direction is mobile, and the movable processing device can be connect with the rack, and the movable processing device can also be independent In the rack and it is able to achieve the device mobile in the rack upper horizontal.The movable processing device is equipped with hold-down devices 11；The Floatable supporting mechanism includes several assemblies, length direction of several described assemblies along the long rack 12 Spacing setting, the assembly upper end are provided with conveying roller 1, and the conveying roller 1 is axially perpendicular to the length of the long rack 12 The cooperation conveying of conveying roller 1 in direction, several assemblies supports profile, its institute in the movable processing device moving process Stating hold-down devices 11 and capable of pushing the assembly contacted declines 1 position of conveying roller, and the assembly is equipped with Automatic reset mechanism.Preferably, the conveying roller 1 is high temperature felt roller.

Spacing setting fills the conveying roller 1 of each assembly by other when rotating decline between several described assemblies The influence of the position of ligand, while also increasing the effective distance of contact support profile；Several described assemblies are worked in coordination, 1 position of conveying roller of the close assembly of the movable processing device declines, and other assemblies keep the state of support profile, When movable processing device far from when, the assembly that has declined, which resets, to be increased, other are by under the close assembly of movable processing device Drop so alternately while realizing the support and conveying of profile, does not influence the movement of movable processing device.

For example, the movable processing device is traction machine grip holder, profile is made by one end of dragger grips profile It can continuously squeeze out from extruder, and profile is supported using floating table, in order to avoid profile deforms, firstly, dragger is from floating Dynamic platform starts clamping section close to one end of profile, then by multiple assemblies, often close to an assembly, the dragger On hold-down devices 11 i.e. the assembly is pushed, avoid 1 down position of conveying roller, to make the traction Machine passes through, and the conveying roller 1 of other assemblies then remains stationary, and continues support conveying profile.

Preferably, as shown in Fig. 2, the assembly further includes that two bearing blocks 2, both ends are separately mounted to two axis Hold the shaft 3 on seat 2, the bearing piece 4 being fixed in the shaft 3 and lever block 5；The lever block 5 includes resistance arm 501 and moves The arm of force 502, the resistance arm 501 are connect with the power arm 502, and the lever block 5 is with the fixed connection place with the shaft 3 For balance pivot, the resistance arm 501 links together at balance pivot with the power arm 502.Preferably, the resistance Arm 501 and the power arm 502, which are integrally formed, constitutes the lever block 5.It therefore, can be by resistance arm according to lever principle 501 or power arm 502 force with realize entire lever block 5 with the shaft 3 be axis rotate.The conveying roller 1 is provided with axis 6,501 end of resistance arm and the bearing piece 4 distinguish the both ends that common rotation supports the axis 6, i.e., the described axis 6 can phase The resistance arm 501 and the bearing piece 4 are rotated；The conveying roller 1 is parallel with the shaft 3, the resistance arm 501 and described Bearing piece 4 supports the conveying roller 1 that can be rotated using the axis of the shaft 3 as axis；On the resistance arm 501 of the lever block 5 Pressing down section 10 is installed, the pressing down section 10 is set between 501 end of resistance arm and the shaft 3, to pressing down section 10 into Row push, will press the shaft 3 rotates forward in the bearing block 2, can be rotated down with resistance arm 501, thus band Dynamic 1 position of conveying roller decline, therefore when movable processing device can play the role of evacuation when moving close to；The lever block 5 The separate one end with 501 junction of resistance arm of power arm 502 be connected with the automatic reset mechanism.It is described to automatically reset Mechanism stretchy power arm 502 rotates backward shaft 3 in bearing block 2, to drive resistance arm 501 to be rotated up reset, To make conveying roller 1 reset.Here be reversely " shaft 3 rotates forward in the bearing block 2 " relatively described above In " forward direction " for.Preferably, the pressing down section 10 can be pressed down and the conveying roller 1 will be driven with the axis of the shaft 3 Line is axial lower swing.

Preferably, the automatic reset mechanism includes chain 7, gear 8, clump weight 9；One end of the chain 7 with it is described The separate one end with 501 junction of resistance arm of power arm 502 is connect, and the other end of the chain 7 connects the clump weight 9, chain 7 described in 8 support of gear is simultaneously engaged with the chain 7；Pass through gear 8 described in setting 801 rotational support of gear shaft Rotation.The rotation of power arm 502 described in 9 stretchy of clump weight, and the conveying roller for supporting the resistance arm 501 1 can be on a stable position；In the vertical direction, the stable position is simultaneously above the gear 8 and shaft 3 Position.Specifically, chain 7 is under the support of gear 8, and clump weight 9 pulls power by chain 7 under its own gravity Arm 502 is close to gear 8, so that resistance arm 501 be driven to be rotated up, when final clump weight 9 stops drag chain 7, then makes to hinder The conveying roller 1 that the arm of force 501 is supported is on a stable position, i.e., resistance arm 501 and conveying roller 1 are fixed on a height On, position when the stable position is the support conveying of conveying roller 1.In order to realize conveying roller 1 from this stable position On decline meaningful, after need to ensuring that conveying roller 1 declines, the shaft 3 and gear 8 will not hinder to produce and process device Movement, therefore, the stable position need to be simultaneously above the position of the gear 8 and shaft 3.

Preferably, most in short-term, the resistance arm 501 supports institute to the length of chain 7 between the gear 8 and power arm 502 Conveying roller 1 is stated to turn to right above the shaft 3.Conveying roller 1 is in the stable position at this time, at this time described stable Position is the highest position that conveying roller 1 is able to rotate.

Preferably, the resistance arm 501 is each perpendicular to the shaft 3 with the plane where the power arm 502.Because institute Stating lever block 5 is using the junction with shaft 3 as fulcrum, and the rotation of shaft 3 is turn of resistance arm 501 and power arm 502 Dynamic basis, therefore resistance arm 501 is set and is each perpendicular to shaft 3 with power arm 502, it is that resistance arm 501 and power arm 502 rotate Most laborsaving mode, therefore convenient for clump weight 9 pull power arm 502 rotate.

It can be random angle that angle α is formed between the resistance arm 501 and the power arm 502, it is preferred that the resistance arm The angle α formed between 501 and the power arm 502 is obtuse angle, when need to pull the rotation of power arm 502 so that 501 turns of resistance arm When moving 3 surface of shaft, setting obtuse angle for α is most labour-saving mode.

Preferably, it is away from the side of the conveying roller 1 setting pressing down section 10 on the resistance arm 501, under described Splenium 10 is in Round Wheel.In the present embodiment, the side on the resistance arm 501 on the inside of the α of angle, which is extended, protrusive board 13, The protrusive board 13 is integrally formed with resistance arm 501, and the protrusive board 13 is axially vertical with the conveying roller 1, on the protrusive board 13 The side of the conveying roller 1 is provided with pressing down section 10, the axis parallel of the conveying roller 1 and the pressing down section 10.It is preferred that Ground is vertically installed with support shaft 14 on protrusive board 13, and pressing down section 10 is rotatably installed in support shaft 14, the conveying roller 1 and institute Axle center, the support shaft 14 for stating pressing down section 10 are parallel, and the pressing down section 10 of Round Wheel is by being fixed on the convex of resistance arm 501 14 rotational support of the support shaft on plate 13.

Preferably, the pressing down section 10 is rolling bearing.Deep groove ball bearing specifically can be used, deep groove ball bearing, which has, to rub Wipe the advantages that resistance is small, and revolving speed is high.

Preferably, using the vertical plane by 3 axis of shaft as interface, then the gear 8 is located at the angle α institute Pair side and vertically be located at the shaft 3 lower section.

Preferably, under the reset response of automatic reset mechanism, the conveying roller of all assemblies is in same bearing height, It to flush supports, convey profile.

Preferably, the movable processing device includes processing platform, and the processing platform is equipped with production and processing device, institute The side that hold-down devices 11 are set to the processing platform is stated, and convex under the relatively described processing platform of the hold-down devices 11.One Hold-down devices 11 described in a embodiment install the side for being connected to the processing platform bottom.

Preferably, as shown in figure 3, the hold-down devices 11 include horizontally disposed bottom 112, respectively with bottom The bevel edge 111 of 112 both ends connection, two bevel edges 111 and bottom 112 formed it is wealthy under narrow funnel type；The pushing Device 11 can move back and forth along the horizontal direction perpendicular to the conveying roller 1, to move before direction of advance is in moving process The bevel edge 111 of side, the front side of the hold-down devices 11 can be contacted with the pressing down section 10, and by pressing down section 10 be depressed into it is described under The lower section of the bottom of pressure device 11.Preferably, the hold-down devices 11 further include horizontally disposed top margin 113.In a reality It applies in mode, the both ends of the top margin 113 are connect with the upper end of two bevel edges 111 respectively.Top margin 113, bottom 112, bevel edge Connection between 111 can be welding, is also possible to entire hold-down devices 11 and is integrally formed, the hold-down devices 11 constitute hollow Frame structure.As shown in figure 3, the pushing to pressing down section 10 can be easily realized by the way that hold-down devices 11 are arranged, to push Resistance arm 501 rotates down, so that 1 position of conveying roller be driven to decline.

Preferably, as Figure 1 and Figure 4, the long rack 12 includes symmetrically arranged two horizontal long along its length Side plate 121 and stabilizer blade 122；The assembly is mounted between two long side plates 121 of level, the long side plate 121 of two levels Between have gap；The bearing block 2 of two of each assembly is separately mounted on two long side plates 121 of level, For the shaft 3 perpendicular to the length direction of the long rack 12, the stabilizer blade 122 supports the long side plate 121 of the level；The water It puts down and is equipped with perpendicular riser 123 below long side plate 121, described 801 one end of gear shaft is vertically fixed on the riser 123 On, the other end installs the gear 8；The riser 123 is arranged along the length direction of the long rack 12.Two long side plates of level The automatic reset mechanism that is set as in space and stabilizer blade 122 between 121 provides space, specifically, for clump weight 9 rise or under The rotation of drop, gear 8 provides space, it is ensured that clump weight 9 and gear 8 can normal operations.

Multiple assembly settings arranged in parallel, specifically as shown in figure 3, being provided with four by taking four assemblies as an example A assembly, wherein totally four pressing down sections 10 from left to right, first and the 4th only shows pressing down section 10, not Show the equal connection signal of pressing down section 10 and lever block 5, but second left pressing down section 10 also show with gear 8, chain 7, The connection signal of some resistance arm 501, wherein solid line is current state, and dotted line shows pressing down section 10 around 3 turns of shaft Schematic diagram after dynamic；

To move direction of advance as front side in moving process, it is seen that when hold-down devices 11 move forward (shown in Fig. 2 this When be moved to the left as direction of advance), the bevel edge 111 of the front side of hold-down devices 11 pushes pressing down section 10 with shaft 3 is axis and is rotated.Such as In Fig. 2, dotted line illustrates that hold-down devices 11 continue to move along, then second left pressing down section 10 is eventually pressed onto lower press fitting The lower section of 11 bottom 112 is set, i.e. second left pressing down section 10 can drop to third left such as in vertical direction and push The position in portion 10, conveying roller 1 is lower than the top margin 113 of the hold-down devices 11 in vertical position at this time.At the conveying roller 1 When stable position, when level moves back and forth, the bevel edge 111 on front side of direction of advance can push the hold-down devices 11 The pressing down section 10 is depressed into the lower section of the bottom 111 of hold-down devices 11 by the pressing down section 10.When the hold-down devices 11 Far from after the assembly, the clump weight 9 pull under gravity the power arm 502 drive resistance arm 501 with And conveying roller 1 is resetted to continue support conveying profile.

The processing platform of the movable processing device, which is supported profile in the moving process of movable processing device, to be added Work, in the present embodiment, the height of the position of the processing platform upper surface and the top when conveying roller 1 arrival settling position Degree flushes.The conveying of profile is realized by the way that multiple assembly cooperations are arranged, profile is placed on the defeated of multiple assemblies It send on roller 1, and by above processing platform.When several assemblies are in stable state, the top level of conveying roller 1 is flushed With horizontally-supported profile.In the moving process of movable processing device, when the movable processing device is close to assembly, make to correspond to The position of conveying roller 1 of assembly be decreased below the processing platform and realize evacuation, pass through movable processing device And the production and processing device on processing platform can carry out corresponding production and processing to the profile on processing platform and operate, and other Assembly then keeps the support transport status to profile, when the corresponding assembly far from when, conveying roller 1 reset.Wherein institute Stating production and processing device can be drawing head or cutter device etc..

Fig. 4 is the schematic diagram for producing and processing a kind of embodiment when device is cutter device 16, and long rack 12 is set Have moving guide rail 15 along its length, the moving guide rail 15 is set to the side of long rack 12, the cutter device 16 along Moving guide rail 15 moves back and forth, and the 16 of the cutter device are equipped with cutting processing platform 17 and disc cutter 18.It can be with from Fig. 4 Find out, hold-down devices 11 are mounted on the side of the bottom plate of the cutting processing platform 17 of cutter device 16,11 energy of hold-down devices Moved with the movement of cutter device 16, in 11 moving process of hold-down devices, on front side of bevel edge 111 be able to achieve to pressing down section 10 pushing.

Floating table described in the utility model plays evacuation movable processing device while being able to achieve profile conveying support, under Pressure device 11 can move back and forth along the horizontal direction perpendicular to the conveying roller 1, can will be under the pressing down section 10 of Round Wheel Pressure drives the position decline of conveying roller 1 so that resistance arm 501 be made to rotate finally down, and hold-down devices 11 are mountable to be added mobile The side that tooling is set, therefore conveying roller 1 can be made to realize that position declines to avoid in the mobile process of movable processing device, This process no longer needs to additionally drive assembly using other driving mechanisms；And it is drawn using automatic reset mechanism by clump weight 9 Dynamic chain 7 is to pull the power arm 502 to realize the reset of conveying roller 1, therefore automatic reset mechanism is not necessarily to other electric power Device is resetted, and reset mode is simple and fast, laborsaving, environmental protection and energy saving, efficiently.

It is noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although The utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: its according to It is so possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced It changes；And these are modified or replaceed, various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution Protection scope.

Claims (10)

1. a kind of floating table, it is characterised in that: the floating table includes long rack (12), movable processing device and floating support machine Structure；The movable processing device can be mobile along the length direction of the long rack (12), and the movable processing device, which is equipped with, to be pushed Device (11)；The Floatable supporting mechanism includes several assemblies, several described assemblies are along the long rack (12) The setting of length direction spacing, the assembly upper end are provided with conveying roller (1), and the conveying roller (1) is axially perpendicular to the length The length direction of rack (12), its described hold-down devices (11) can will contact in the movable processing device moving process The assembly pushing declines the conveying roller (1) position, and the assembly is equipped with automatic reset mechanism.

2. a kind of floating table according to claim 1, it is characterised in that: the assembly further includes two bearing blocks (2), two Hold the shaft (3) being separately mounted on two bearing blocks (2), the bearing piece (4) being fixed on the shaft (3) and lever block (5)；The lever block (5) includes resistance arm (501) and power arm (502), the resistance arm (501) and the power arm (502) it connects, the lever block (5) is using the fixed connection place with the shaft (3) as balance pivot；The conveying roller (1) sets It is equipped with axis (6), common rotation supports the two of the axis (6) respectively for resistance arm (501) end and the bearing piece (4) End, the conveying roller (1) are parallel with the shaft (3)；Pressing down section is installed on the resistance arm (501) of the lever block (5) (10), the pressing down section (10) is set between the resistance arm (501) end and the shaft (3)；The lever block (5) is moved The separate one end with the resistance arm (501) junction of the arm of force (502) is connected with the automatic reset mechanism.

3. a kind of floating table according to claim 2, it is characterised in that: the pressing down section (10) can be pressed down and will drive institute Conveying roller (1) is stated with the axis of the shaft (3) as axial lower swing.

4. a kind of floating table according to claim 3, it is characterised in that: the automatic reset mechanism includes chain (7), gear (8), clump weight (9)；One end of the chain (7) and the power arm (502) are separate with the resistance arm (501) junction One end connection, the other end of the chain (7) connect the clump weight (9), chain (7) described in gear (8) support and with Chain (7) engagement；Pass through the rotation of gear (8) described in setting gear shaft (801) rotational support.

5. a kind of floating table according to claim 4, it is characterised in that: chain between the gear (8) and power arm (502) (7) most in short-term, the resistance arm (501) supports the conveying roller (1) to turn to right above the shaft (3) to length.

6. a kind of floating table according to claim 4, it is characterised in that: under the reset response of automatic reset mechanism, own The conveying roller of assembly is in same bearing height.

7. a kind of floating table according to claim 5, it is characterised in that: the movable processing device includes processing platform, institute State processing platform be equipped with production and processing device, the hold-down devices (11) be set to the processing platform side, and it is described under It is convex under the relatively described processing platform of pressure device (11).

8. a kind of floating table according to claim 4, it is characterised in that: the pressing down section (10) is deep groove ball bearing.

9. a kind of floating table according to claim 8, it is characterised in that: under the hold-down devices (11) include horizontally disposed Bottom edge (112), the bevel edge (111) being connect respectively with bottom (112) both ends, two bevel edges (111) and bottom (112) Formed it is wealthy under narrow funnel type；The hold-down devices (11) can move back along perpendicular to the horizontal direction of the conveying roller (1) It is dynamic, to move direction of advance as front side in moving process, the bevel edge (111) of the front side of the hold-down devices (11) can with it is described Pressing down section (10) contact, and pressing down section (10) is depressed into the lower section of the bottom of the hold-down devices (11).

10. a kind of floating table according to one of claim 4-9, it is characterised in that: the long rack (12) includes along its length Spend the direction long side plate of symmetrically arranged two levels (121) and stabilizer blade (122)；The assembly is mounted on two described horizontal long Between side plate (121)；The bearing block (2) of two of each assembly is separately mounted to two long side plates of level (121) on, length direction of the shaft (3) perpendicular to the long rack (12), stabilizer blade (122) the support horizontal length Side plate (121)；Perpendicular riser (123), described gear shaft (801) one end are equipped with below the long side plate of level (121) It is vertically fixed on the riser (123), the other end installs the gear (8)；The riser (123) is along the long rack (12) Length direction setting.