CN207746059U - Laundry sheet pelleter - Google Patents

Abstract

The utility model provides a kind of laundry sheet pelleter, including rack, rotationally it is set up in the drying roller of rack, feed mechanism below drying roller, the feed mechanism includes hopper, coating roll, elevation and subsidence regulating device and coating roll driving apparatus, hopper is installed on bottom of the frame, coating roll is rotatably installed in hopper, coating roll both ends are installed on by two elevation and subsidence regulating device liftable positions in rack, drying roller is located above coating roll and has gap between coating roller surface, coating roll driving apparatus drives coating roll rotation, slurry in hopper is transmitted and is adhered to drying roller peripheral surface by coating roll.The utility model can realize the laundry sheet production requirement of different-thickness.

Description

Laundry sheet pelleter

Technical field

The utility model is related to laundry sheet production equipment technologies, more particularly to laundry sheet pelleter.

Background technology

Laundry sheet is a kind of novel laundry article that market is risen, in the form of sheets or band-like, it is light and handy and and in carrying, can be fast It is instantly dissolved in water, it is alternative to be invested in washing machine for liquid detergent；Laundry sheet is made by laundry sheet pelleter, by raw material of doing washing It mixes and is obtained through being handled at film production.Film process are drying formings on drying roller on laundry sheet pelleter, existing The laundry sheet thickness of some laundry sheet pelleter production cannot be adjusted, and cannot produce the laundry sheet of different-thickness.

Utility model content

In view of above-mentioned problem, the utility model provides a kind of laundry sheet film-making convenient for adjusting laundry sheet thickness Machine, to produce the laundry sheet of different-thickness.

The utility model is related to technical solution：

A kind of laundry sheet pelleter, including rack, are rotationally set up in the drying roller of rack, are set under drying roller The feed mechanism of side, the feed mechanism include hopper, coating roll, elevation and subsidence regulating device and coating roll driving apparatus, hopper peace Loaded on bottom of the frame, coating roll is rotatably installed in hopper, and coating roll both ends pass through two elevation and subsidence regulating device liftables It is installed in rack to position, drying roller is located above coating roll and there is gap, coating roll to drive between coating roller surface Slurry in hopper is transmitted and is adhered to drying roller peripheral surface by dynamic device driving coating roll rotation, coating roll.

Further, the elevation and subsidence regulating device includes that swing arm, screw rod and two screw thread disks, one end of swing arm are articulated with rack Supporting rod on, the other end offers perforation, and coating roll one end is set up in swing arm close to one end of perforation, and the upper end of screw rod is solid Set on rack, the lower end of screw rod passes through the perforation of swing arm, and two screw thread valve snails are connected on screw rod, and swing arm is clamped.

Further, the inclined face structure in hopper bottom surface tilts intensification, hopper bottom surface to the other side gradually downward from a side Upper shallower upside is recessed with storage tank, and storage tank is less than the side wall of hopper towards the cell wall of hopper direction of fall side, so as to The slurry flowed out in hopper overflows after being stored up in storage tank completely from cell wall side, and the deeper side in hopper bottom surface is recessed fluted.

Further, hopper bottom surface is equipped with several block baffles, and baffle is arranged in multistage grade, has per level-one several along length Several baffles that degree direction is distributed on the same line, and baffle number increases plate step by step along upper end to the lower end of inclined surface Number, and between adjacent bilevel baffle, the underface of one baffle of top is corresponded at the spacing of two baffle of lower section, and adjacent Between the baffle of upper and lower two-stage the both ends of subordinate's baffle with respect to the both ends of higher level's baffle along the stretching of plate length direction so that liquid stream is from hopper Gradually it is divided into multiply liquid stream in being flowed downwards above bottom surface.

Further, the hopper, which can slide up and down to, is installed on bottom of the frame and is locked by bolt, and coating roll is logical It crosses elevation and subsidence regulating device and drives lifting, to adjust the gap between drying roller and coating roll.

Further, further include hold-down roller, hold-down roller, which is rotatablely arranged at, is located at presetting above coating roll in rack At distance, and hold-down roller periphery with drying roller circumference face interval prepsetting gap so that laundry sheet passes through.

Further, the hold-down roller is equipped with for adjusting the compression in gap between hold-down roller and drying roller to adjust dress It sets, clamping adjustment device is set to the both ends of hold-down roller.

Further, the clamping adjustment device includes holder, is slidingly disposed on holder for setting up hold-down roller Bearing block, and for the adjusting bolt of adjustment axis seating position, holder has a bottom wall and is vertically built up in bottom wall side The bottom wall of side wall, holder is equipped with sliding slot, and bearing block is slidingly disposed in sliding slot, and holder is fixedly installed in rack, rack side wall On offer and the matched screw hole of adjusting bolt.

Further, the adjusting bolt has screw rod and is integrally formed in the shank of screw rod one end, removable on screw rod It is bolted with two clamping pieces with unloading, adjusting bolt is installed to when fitted shaft bearing, screw rod passes through the screw hole on rack side wall on holder And penetrate to the through-hole of bearing block side wall, two clamping pieces are screwed onto on screw rod and are clamped in bearing block side wall both sides.

The beneficial effects of the utility model：

Compared with prior art, the utility model provides a kind of convenient for adjusting the laundry sheet machine of laundry sheet thickness, passes through liter The gap of falling tone regulating device adjusting coating roller and drying roller, and pass through turn of control cabinet difference adjusting coating roller and drying roller Speed so that the slurry thickness for being coated on drying roller is controllable, while being adjusted between hold-down roller and drying roller by adjusting bolt Gap so that the compression thickness of laundry sheet is controllable.It can so realize the laundry sheet production requirement of different-thickness.

Description of the drawings

Fig. 1 is the first schematic side view of the utility model laundry sheet machine；

Fig. 2 is the second schematic side view of the utility model laundry sheet machine；

Fig. 3 is the bin design schematic diagram of the utility model laundry sheet machine；

Fig. 4 is the enlarged drawing of part A in Fig. 1；

Fig. 5 is the hold-down roller of the utility model laundry sheet machine and the schematic cross-sectional view of clamping adjustment device.

Specific implementation mode

With reference to the attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear Chu is fully described by.It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to Limit scope of protection of the utility model.

It please refers to Fig.1, shown in Fig. 2, the utility model provides a kind of laundry sheet machine, including rack 1, Drying 2, Drying Power plant 3, heating plant, feed mechanism, rolling-up mechanism 6, control cabinet 7, hold-down roller 8 and waste gas collection device 9.

It includes two end-rack being oppositely arranged that rack 1, which uses frame structure, rack 1,.

Drying roller 2 is a hollow cylinder, and drying roller 2 is provided centrally with central shaft 21, the two of central shaft 21 End is rotationally set up in by first bearing seat 22 in two end-rack of rack 1 respectively.One end of central shaft 21 is arranged in first In the bearing of bearing block 22, the other end passes through the bearing of first bearing seat 22 and extend out to 22 outside of first bearing seat.Center One end that axis 21 stretches out in outside first bearing seat 22 is arranged with toothed disc 23.Central shaft 21 stretches out in one outside first bearing seat 22 End offers heat transfer path 28 along axle center, and heat emission hole connection heat transfer path 28 is opened on 21 peripheral wall of central shaft, makes to enter to conduct heat and lead to The heat in road 28 can enter 2 inner space of drying roller.Heat transfer path 28 is connect with heating plant, for the heat of heating plant It is sent in drying roller 2.The surfaces externally and internally of 2 peripheral wall of drying roller is equipped with for anti-sticking and antirust coating.Drying roller 2 Both ends be equipped with end cap 24 made of heat-barrier material, 24 upper edge of end cap is radially provided with reinforcing rib 25, to enhance central shaft 21 to drying The support strength of dry drum 2.Any side end cap 24 of drying roller 2 is equipped with scupper shutter, so that heating plant uses steam The condensation vapor generated in heating process at condensed water be discharged.The side of rack 1 is equipped with the laundry for scraping off drying forming The shovel wiper of piece 20, to guide molding laundry sheet to rolling-up mechanism 6.

Drying power plant 3 includes being set up in the Drying driving motor 31 of rack 1, with 31 phase of Drying driving motor It is sequentially connected and is set up in the speed reducer 32 of rack 1, the output shaft of speed reducer 32 is equipped with gear, and gear is nibbled with 23 phase of toothed disc It closes, to drive drying roller 2 to rotate.Drying roller 2 preferably uses inverse clock rotating manner as shown in Figure 1, is conducive to do washing The drying of piece 20, while being conducive to laundry sheet 20 and being supported in 2 top of drying roller and rolling-up mechanism 6 is facilitated to wind.

Heating plant includes steam generator, jet chimney 41, steam trap 42 and drainpipe 44.Steam trap 42 are mounted on jet chimney 41 and 44 junction of drainpipe, and are connected to heat transfer path 28.Steam electricity is installed on jet chimney 41 Magnet valve and steam valve, to control the flow of steam.Drainpipe 44 flows out for the moisture in steam.

Feed mechanism includes hopper 51, hopper 52, coating roll 53, elevation and subsidence regulating device 55 and coating roll driving apparatus.Material The slurry of the accommodating manufacture laundry sheet 20 of bucket 51, hopper 51 are installed on the top of 1 side of rack, and 51 top of hopper is equipped with hopper cover 510, the side of hopper cover 510 is articulated with 51 edge of hopper.The bottom of hopper 51 is connected with drainage conduit 511, the row of drainage conduit 511 Outlet is located at the top of hopper 52, and so that slurry flows into hopper 52, drainage conduit 511 is equipped with the flow for controlling slurry The valve switch 512 of size.Hopper 52 can slide up and down to the bottom for being installed on rack 1, and lock fixed bit by bolt It sets.

Referring to Fig. 3, the inclined face structure in 52 bottom surface of hopper, gradually deepens from a side to the other side.It is shallower on hopper 52 Upside be recessed with storage tank 523, storage tank 523 is less than the side of hopper 52 towards the cell wall 524 of 52 direction of fall side of hopper Wall, so that the slurry flowed out in hopper 51 overflows after storage completely from 524 side of cell wall in storage tank 523.52 deeper side of hopper Recessed fluted 521, coating roll 53 is placed in groove 521, is located on hopper 52 in the opposite end walls of groove 521 and is offered Installation opening 522 is installed for the axis pin at 53 both ends of coating roll, and 53 both ends of coating roll pass through 55 liftable position of elevation and subsidence regulating device Ground is installed in rack 1, and elevation and subsidence regulating device 55 is set to the both ends of coating roll 53,53 peripheral surface of coating roll and drying roller 2 Peripheral surface there is prepsetting gap, the output shaft of coating roll driving apparatus coating roll driving device and 53 phase of coating roll transmission company It connects, the slurry for being adhered to its surface is transmitted and is adhered to 2 peripheral surface of drying roller by coating roll 53.On the inclined surface of hopper 52 Equipped with three block baffles 520, wherein a baffle 520 is set to the shallower upside of inclined surface depth, another two baffle 520 is on hopper 52 The deeper downside of depth, two baffle 520 of downside along its length on the same line extend and be spaced pre-determined distance, spacing pair The underface of side shield 520 should be gone up, and the both ends of 520 opposite upper baffle 520 of lower side shield are stretched out in plate length direction, for When slurry is on the downside of upside flows to, one liquid flow can be divided into three bursts of downward shallow bid liquid stream arrangements and equably flow to hopper 52 The upper deeper side of depth.It is appreciated that the arrangement mode of baffle 520 does not limit to three block baffles, with this arrangement mode, can be arranged One liquid flow can be divided into the downward small liquid stream of multiply and flow to 52 deeper side of hopper by polylith baffle.

Groove 521 is equipped with auxiliary coated article 525 close to the side of baffle 520, and auxiliary coated article 525 is that triangular prism can be used Body shape, auxiliary coated article 525 are spaced pre-determined distance with drying roller 2, drying roller 2 are preferably coated on for auxiliary slurry Peripheral surface.

Referring to Fig. 4, elevation and subsidence regulating device 55 includes swing arm 551, screw rod 552, two screw thread disks 553 and second bearing Seat 554.One end of swing arm 551 is articulated on the supporting rod of rack 1, and the other end offers perforation 550.The pin at 53 both ends of coating roll Axis is set up in swing arm 551 by second bearing seat 554 close to one end of adjustment hole 550.The upper end of screw rod 552 is fixedly arranged on rack 1, the lower end of screw rod 552 passes through perforation 550, two screw thread disks 553 to be bolted in screw rod 552 and 551 one end of swing arm is clamped, the spiral shell of top Line disk 553 is held in the upper surface of swing arm 551, and the screw thread disk 553 of lower section is held in the lower face of swing arm 551, passes through upper and lower two 553 phase of screw thread disk is clamped, to which 551 position adjustable of swing arm to be fixed on screw rod 552.

Further, in order to ensure coating roll 53 adjust balance, 551 upper surface of swing arm of elevation and subsidence regulating device 55 and Lower surface is provided with the dial (not shown) of annular, and the periphery wall of screw thread disk 553 is equipped with pointer corresponding with dial (figure Do not show), drive pointer accordingly to rotate when screw thread disk 553 rotates, the angle of pointer rotation can be indicated by dial, to It can be seen that the amplitude adjusted.

By rotating two screw thread disks 553 up and down, upper and lower thread bush 553 is lifted along screw rod 552, to drive swing arm 551 to put It is dynamic, and then coating roll 53 is driven to lift, to the gap between adjusting coating roller 53 and drying roller 2.

Control cabinet 7 is equipped with regulation button, to adjust Drying driving motor 31 and coating roll driving apparatus coating roll The rotating speed of driving device so that the slurry thickness for being coated on drying roller 2 is adjustable.

For rolling-up mechanism 6 for winding the laundry sheet 20 made, it is opposite with feed mechanism that rolling-up mechanism 6 is set to rack 1 Side.Rolling-up mechanism 6 includes pedestal 61, support roller 62, tension roller 63, roll film roller 64 and winding motor.Pedestal 61 Two supporting rods including a platform and higher than stage+module face and positioned at platform both sides.Support roller 62 is rotatably installed on two On supporting rod, it is used to support laundry sheet 20.Tension roller 63 and roll film roller 64 are set in parallel in the stage+module of pedestal 61 On face, assists winding by twin-roll, more neat, consolidation is wound, convenient for slice.Third motor is for driving 63 turns of tension roller Dynamic, belt or gear drive can be used with the shaft of roll film roller 64 in the shaft of tension roller 63 so that tension roller 63 and volume Piece roller 64 rotates synchronously.Third motor is equipped with the third governor for controlling third motor speed, so as to according to laundry The discharging speed of piece 20 accordingly adjusts the speed of winding laundry sheet 20.

It please refers to Fig.1 and Fig. 5, hold-down roller 8 is rotatablely arranged at the pre-determined distance for being located at 53 top of coating roll in rack 1 Place, and 8 periphery of hold-down roller with 2 circumference face interval prepsetting gap of drying roller so that laundry sheet 20 passes through, hold-down roller 8 be used for press Tight laundry sheet 20 removes bubble therein and can avoid the uneven thickness that slurry is generated in the flowing of drying roller 2, makes laundry sheet 20 thickness is uniform.Hold-down roller 8 is equipped with the clamping adjustment device 81 for adjusting gap between hold-down roller 8 and drying roller 2, pressure Tight regulating device 81 is set to the both ends of hold-down roller 8.Clamping adjustment device 81 includes holder 811, is slidingly disposed on holder 811 3rd bearing seat 812 for setting up hold-down roller 8, and the adjusting bolt 813 for adjusting 812 position of 3rd bearing seat.Branch Frame 811 has a bottom wall and is vertically built up in the side wall of bottom wall side, and the bottom wall of holder 811 is equipped with sliding slot, 3rd bearing seat 812 It is slidingly disposed in sliding slot, holder 811 is fixedly installed in rack 1, is offered on 811 side wall of holder and 813 phase of adjusting bolt The screw hole of cooperation, adjusting bolt 813 have screw rod and are integrally formed in the shank 8133 of screw rod one end.On screw rod removably Two clamping pieces 8131 are bolted with, when coordinating 3rd bearing seat 812 in the installation to holder 811 of adjusting bolt 813, screw rod passes through holder Screw hole on 811 side walls is simultaneously penetrated to the through-hole of 812 side wall of 3rd bearing seat, and two clamping pieces 8131 are screwed onto on screw rod and press from both sides It holds in 812 side wall both sides of 3rd bearing seat, drives adjusting bolt 813 to move by outer force effect shank 8133, and then drive the The three accordingly slidings of bearing block 812, so just play the gap for adjusting hold-down roller 8 and drying roller 2.

A large amount of aerosols that waste gas collection device 9 generates during being used to be discharged slurry drying in flakes.Waste gas collection device 9 Including cover body 91, exhaust pipe 92, wind turbine 93 and filter plate 94.The taper that bottom opening can be used in cover body 91 is hood-like, and preferably four Prismatic table shape shell, cover body 91 cover at the top of drying roller 2, and cover body 91 is equipped with fixing piece 90 to hang fixation by cover body 91 In the top of workshop, the top of cover body 91 is connected with exhaust pipe 9, wind turbine 93 is installed in exhaust pipe 9, filter plate 94 is detachably installed Lower section in cover body 91 and positioned at wind turbine 93, filter plate 94, at predetermined angle, wind are directly entered to obstruct steam with horizontal plane Corrode wind turbine 93 in machine 93.94 end of filter plate is connected with aqueduct 940, so that steam rises what contact filtration plate 94 was formed Condensed water is flowed into along filter plate 94 in aqueduct 940, and is discharged through aqueduct 940.91 lower edge of cover body is located on hopper 51 The side of side is equipped with shelves vapour coaming plate 95, and shelves vapour coaming plate 95 encloses structure by opposite two end plates with the side plate for being connected to two end plates side At, to stop that steam leaks, convenient for concentrate siphon away steam.It so can effectively avoid steam and rise what contact filtration plate 94 was formed Condensed water is fallen to vertically on the laundry sheet 20 on drying roller 2, and influences the making of laundry sheet 20.

The work step of the utility model：

Start Drying driving motor 31 to operate, Drying driving motor 31 drives the rotation of 2 inverse clock of drying roller；

Adjusting coating roller 53 and the gap of drying roller 2 and the gap of hold-down roller 8 and drying roller 2；

Hopper 51 will be poured into for producing the slurry of laundry sheet 20, slurry flows into hopper 52；

Start the operating of coating roll driving apparatus, coating roll driving apparatus drives coating roll 53 to rotate, and coating roll 53 is by slurry Equably it is coated on the outer surface of drying roller 2；

Molding laundry sheet 20 through tentatively drying removes bubble removing under the action of hold-down roller 8 and is uniformly pressed to default thickness Degree；

The laundry sheet 20 of further drying forming simultaneously scrapes off laundry sheet 20.

To sum up, laundry sheet machine provided by the utility model, compared with prior art, laundry sheet provided by the utility model Machine is provided with drying roller 2, power plant 3, heating plant, feed mechanism, rolling-up mechanism 6 and control cabinet 7, passes through control cabinet 7 The rotating speed of controllable adjustable drying roller 2, the suitable drying temperature of controllable adjustable heating plant, controllable adjustable rolling-up mechanism 6 rolling speed, so just realizes laundry sheet automated production, and convenient operation and control reduces labor intensity.

Heating plant heats drying roller 2 using steam heating mode, and by control cabinet 7 to the temperature of drying roller 2 Degree automatically controls so that the more uniform temperature of drying roller 2, rate of warming is fast, energy loss is saved, compared to electric heating heating side Formula is safer, reliably；

By the gap of 55 adjusting coating roller 53 of elevation and subsidence regulating device and drying roller 2, and adjusted respectively by control cabinet 7 The rotating speed of coating roll 53 and the rotating speed of drying roller 2 so that the slurry thickness for being coated on drying roller 2 is controllable, passes through simultaneously Adjusting bolt 813 adjusts the gap of hold-down roller 8 and drying roller 2 so that the compression thickness of laundry sheet 20 is controllable.It so can be real 20 production requirement of laundry sheet of existing different-thickness.

The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every Using equivalent structure or equivalent flow shift made by the utility model description, it is applied directly or indirectly in other phases The technical field of pass, is equally included in the patent within the scope of the utility model.

Claims (9)

1. a kind of laundry sheet pelleter, including rack (1) are rotationally set up in the drying roller (2) of rack (1), it is set to and dries Feed mechanism below dry drum (2), it is characterised in that：The feed mechanism includes hopper (52), coating roll (53), rising-falling tone Regulating device (55) and coating roll driving apparatus, hopper (52) are installed on rack (1) bottom, and coating roll (53) is rotatably installed on In hopper (52), coating roll (53) both ends are installed on by two elevation and subsidence regulating device (55) liftable positions in rack (1), Drying roller (2) is located above coating roll (53) and there is gap, coating roll driving apparatus to drive between coating roll (53) surface Slurry in hopper (52) is transmitted and is adhered to drying roller (2) peripheral surface by dynamic coating roll (53) rotation, coating roll (53).

2. laundry sheet pelleter according to claim 1, it is characterised in that：The elevation and subsidence regulating device (55) includes swing arm (551), screw rod (552) and two screw thread disks (553), one end of swing arm (551) are articulated on the supporting rod of rack (1), the other end Perforation (550) is offered, coating roll (53) one end is set up in swing arm (551) close to one end of perforation (550), screw rod (552) Upper end be fixedly arranged on rack (1), the lower end of screw rod (552) passes through the perforation (550) of swing arm (551), two screw thread disks (553) to be spirally connected In on screw rod (552), and swing arm (551) is clamped.

3. laundry sheet pelleter according to claim 1, it is characterised in that：The inclined face structure in hopper (52) bottom surface, from The one lateral other side tilts intensification gradually downward, and shallower upside is recessed with storage tank (523), storage tank on hopper (52) bottom surface (523) it is less than the side wall of hopper (52) towards the cell wall (524) of hopper (52) direction of fall side, so as to outflow in hopper (51) Slurry overflowed from cell wall (524) side after storage is full in the storage tank (523), hopper (52) deeper side in bottom surface is recessed fluted (521)。

4. laundry sheet pelleter according to claim 3, it is characterised in that：Hopper (52) bottom surface is equipped with several block baffles (520), baffle (520) is arranged in multistage grade, has several several gears being distributed on the same line along its length per level-one Plate (520), and baffle (520) quantity increases plate number step by step along upper end to the lower end of inclined surface, and it is adjacent bilevel Between baffle (520), the underface of one baffle of top (520), and adjacent upper and lower two are corresponded at the spacing of two baffle of lower section (520) Between the baffle (520) of grade the both ends of subordinate's baffle with respect to the both ends of higher level's baffle along the stretching of plate length direction so that liquid stream is from hopper (52) gradually it is divided into multiply liquid stream in being flowed downwards above bottom surface.

5. laundry sheet pelleter according to claim 4, it is characterised in that：The hopper (52) can slide up and down to installation It is locked in rack (1) bottom and by bolt, coating roll (53) is driven by elevation and subsidence regulating device (55) and lifted, to adjust Gap between drying roller (2) and coating roll (53).

6. laundry sheet pelleter according to claim 1, it is characterised in that：Further include hold-down roller (8), hold-down roller (8) can It is rotatably arranged in rack (1) and is located at the pre-determined distance above coating roll (53), and hold-down roller (8) periphery is rolled with drying Cylinder (2) circumference face interval prepsetting gap passes through for laundry sheet (20).

7. laundry sheet pelleter according to claim 6, it is characterised in that：The hold-down roller (8), which is equipped with, is used for pressure regulation The clamping adjustment device (81) in tight gap between roller (8) and drying roller (2), clamping adjustment device (81) are set to hold-down roller (8) Both ends.

8. laundry sheet pelleter according to claim 7, it is characterised in that：The clamping adjustment device (81) includes holder (811), it is slidingly disposed at the bearing block (812) for setting up hold-down roller (8) on holder (811), and for adjusting bearing The adjusting bolt (813) of seat (812) position, holder (811) have a bottom wall and are vertically built up in the side wall of bottom wall side, holder (811) bottom wall is equipped with sliding slot, and bearing block (812) is slidingly disposed in sliding slot, and holder (811) is fixedly installed in rack (1), It is offered on holder (811) side wall and adjusting bolt (813) matched screw hole.

9. laundry sheet pelleter according to claim 8, it is characterised in that：The adjusting bolt (813) have screw rod with And it is integrally formed in the shank (8133) of screw rod one end, removably it is bolted with two clamping pieces (8131), adjusting bolt on screw rod (813) installation is on holder (811) when fitted shaft bearing (812), screw rod pass through the screw hole on holder (811) side wall and penetrate to In the through-hole of bearing block (812) side wall, two clamping pieces (8131) are screwed onto on screw rod and are clamped in bearing block (812) side wall two Side.