CN207596011U - A kind of double-station feed mechanism with cleaning function - Google Patents

Abstract

The utility model discloses a kind of double-station feed mechanism with cleaning function, and the feeding structure includes rack, first, second bearing table and cleaning assembly that are installed in rack both sides；Rack drives the rotation of first, second bearing table；Cleaning assembly is installed on bearing table, and for rinsing glazing platform；The cleaning assembly includes water spray unit, insufflation unit and switch unit；Water spray unit includes spray head, water supply pipe and the first control valve；The spray head is installed in bearing table lower surface, and connects with water supply pipe；First control valve is used to that water supply pipe to be controlled to open and close；Insufflation unit includes blow-out nozzle, supply air line and the second control valve；The blow-out nozzle is installed in bearing table lower surface, and connects with supply air line；Second control valve is used to that supply air line to be controlled to open and close；The utility model provides feed mechanism, realizes that shortening production process product reaches the standard grade and product offline waiting interval time, adds to glazing platform cleaning function, without manually being cleaned.

Description

A kind of double-station feed mechanism with cleaning function

Technical field

The utility model relates generally to ceramic production industry, especially has with a kind of double-station feed mechanism with cleaning function It closes.

Background technology

It is well known that ceramics need to carry out glazing process before the firing, i.e., blank is transported on glazing platform and carries out glaze spraying, Then it is sintered being put into kiln；

Existing glazing or glaze spraying are realized using artificial mostly, specially：Glazing will be treated by staff Blank is transported to glazing platform, then manually carries out carrying out glazing with spray gun, is removed again after the cleaning of glaze more than being carried out after glazing Under be transported to kiln；Existing manual operation has the defects of certain, high labor cost, great work intensity, especially sanitaryware, Its volume is big, weight is big, easily blank is caused to damage in artificial handling process；And glaze uneven thickness during due to artificial glazing, The later stage is caused easily to go out defect ware when being sintered；Further, since using artificial glazing, glaze has the body of human body certain shadow It rings, therefore glazing person can not work for a long time；

The defects of in order to solve artificial blank up and down, designer carry out the (transmission of conveying feeding using modes such as carrier chains Band mode)；Although this mode will realize automation transmission, there are still significant limitations, such as：(1) upper and lower blank and glazing It need to all be completed on this carrier chain, due to various product glazing face difference, some product sides, bottom surface need glazing, but by Carrier chain barrier can not glazing；(2) glaze easily sprays into carrier chain in spraying process, and then carrier chain is caused to be corroded and oxygen Change, serious curtailment service life；(3) glaze is easily accumulated on carrier chain, when blank is placed on carrier chain next time, bottom is easy Be stained with glaze, and blank bottom is stained with and covers extra glaze and will influence subsequently to be burnt into molding yields, especially multiple products together into When entering to be sintered, numerous remaining glaze are entered in kiln, seriously affect the setting of sintering process and temperature；(4) existing carrier chain passes Mode is sent only to improve the time of transmission, can not still improve whole efficiency, a strip transmission line matches a glazing position, is applied to increase Glaze position can cause overall transfer control to become more sophisticated, structure installation difficulty bigger, and then cost higher, and practical glazing efficiency is simultaneously There is no much promotions；

To sum up, the mechanism of existing conveying blank is still further improved.

Utility model content

The purpose of this utility model is that solving the problems in existing, a kind of double-station feeding with cleaning function is provided Mechanism, easily simple in structure, reasonable design and realization realize that shortening is waited to apply during manufacturing using double-station feed mechanism Glaze product is reached the standard grade and glazing product offline waiting interval time, while be carried out at the same time conveying to multiple glazing platforms, effectively improves Production efficiency；In addition, adding to glazing platform cleaning function, without manually being cleaned, ensure that next product is applied in entrance Glaze will not be stained with during glaze platform, ensures product quality, greatly meets production requirement；

To reach above-mentioned purpose, the utility model adopts the following technical solution：

A kind of double-station feed mechanism with cleaning function, the feeding structure include rack, are installed in rack both sides First, second bearing table and cleaning assembly；The rack drives the rotation of first, second bearing table；The cleaning assembly installing On bearing table, and for rinsing glazing platform；The cleaning assembly includes water spray unit, insufflation unit and switch unit；

Water spray unit, including spray head, water supply pipe and the first control valve；The spray head is installed in bearing table following table Face, and connect with water supply pipe；First control valve is used to that water supply pipe to be controlled to open and close；

Insufflation unit, including blow-out nozzle, supply air line and the second control valve；The blow-out nozzle is installed in bearing table Lower surface, and connect with supply air line；Second control valve is used to that supply air line to be controlled to open and close；

Switch unit is installed in the rack, and gives first control valve and the second control valve for output order Action controls the spray head water spray and blow-out nozzle to blow to rinse glazing platform.

Further, first, second bearing table is respectively feeding, blanking bearing table, and the spray head and air blowing are sprayed Mouth is arranged on the lower surface of the second bearing table.

Further, the water supply pipe includes inlet pipeline and crosses water lines；The inlet pipeline with cross water lines it Between first control valve is set；The water outlet for crossing water lines connects with spray head.

Further, the supply air line includes air inlet pipeline and crosses air pipe；The air inlet pipeline with cross air pipe it Between first control valve is set；The outlet side for crossing air pipe connects with blow-out nozzle.

Further, the water lines excessively merge into an aqueous vapor channel with crossing air pipe.

Further, the switch unit includes sensing component and master control unit；The sensing component is arranged on second and holds Object platform upper surface；The master control unit is connected, and send control valve control signal and performed to first, second control valve with sensing component It is turned on and off acting.

Further, the spray head includes sprinkling seat, excessively swivel head, water seat and water inlet plate；It is equipped in the sprinkling seat The water cavity excessively of back taper, the swivel head connect with water seat excessively and are installed in the water cavity excessively；The swivel head has jetting Channel；The water seat peripheral wall of crossing crosses water portion with connecting morphism aquaporin；The water inlet plate is arranged in sprinkling seat, is opened up thereon There is the oblique mouth of a river connected with crossing water cavity；Wherein, the rotation cephalic par is set in arcuation, is butted on sprinkling seat；Water flows through water inlet The oblique mouth of a river of plate enters, and impacts water seat and swivel head rotation, and cocurrent sprays behind water portion from jetting channel to be formed ring-type and penetrate Water.

Further, weighted spherical ball is further included, was installed on water seat.

Further, first, second bearing table has holds object portion in thin dentation arrangement, respectively holds object portion in same flat Interval and parallel distribution on face.

Further, the object portion upper surface of respectively holding is covered with soft anticollision strip.

By above-mentioned technological means, the utility model up to the effect of be：

(1) the utility model provides a kind of double-station feed mechanism with cleaning function, simple in structure, reasonable design and easy Realize, realized using double-station feed mechanism shorten manufacture during treat that glazing product is reached the standard grade and glazing product is offline etc. It treats interval time, while conveying can be carried out at the same time to multiple stations, effectively increase production efficiency；In addition, it adds to glazing platform Cleaning function without manually being cleaned, ensures that next product will not be stained with glaze when entering glazing platform, ensures product quality, Greatly meet production requirement；

(2) the utility model offer cleans glazing platform using spray module and air blowing component, is dried up, and ensures next base Bottom will not be stained with glaze after material is seated in glazing platform；In addition, spray module and air blowing component and the bearing table perfection knot of feed mechanism It closes, realizes automation cleaning, while Improving The Quality of Products, production efficiency is increased substantially；

(3) the utility model realizes automatic sensing, cleans spray when material is after glazing platform is moved away from i.e., effectively prevent glaze Because being condensed after shelving overlong time, cleaning difficulty is caused to improve；It is cleaned by way of quickly spraying and drying up, it is also reserved Certain time carries out naturally dry or gives other operating procedures and set aside some time；

(4) water supply pipe of the utility model and supply air line are realized, and coordinate independent control valve using independent pipeline, from Structure is installed and is easier to realize on controlling, more accurate in control；In cleaning process, water, autogenous cutting change more convenient；

(5) the utility model merges water lines with crossing air pipe, and aqueous vapor switching punching is carried out using a channel from structure It washes, the volume requirement of feeding structure is reduced, the position that water jet is opened up with inflatable mouth can reduce, significantly be dropped on production cost It is low, from practice angle, it can be achieved that aqueous vapor combines, hydraulic pressure, firing rate of injection water etc. are promoted after being mixed into air, is more impacted Power can ensure cleaning effect in low pressure；Further, it is also possible to generate the water mist with impact force, ensure to clean up；

(6) the utility model is used using component and master control unit realization automation control is sensed, when the good blank merging of glazing After bearing table, cleaning can be just proceeded by, otherwise will not be acted, avoids not spraying；In addition, master control unit is carried out to cleaning and drying up Control is avoided at blank blanking to other regions still in operations such as water spray air blowings；

(7) spray head of the utility model is installed using independent, is conveniently replaceable and is tieed up after being blocked by external force collision or incrustation scale It repaiies；In addition, the utility model promotes cleaning performance by the way of a kind of rotation Dynamic Water, swivel head after crossing the cooperation of water seat with spraying water It is rotated in seat, flows out cyclic annular Dynamic Water, not only increase water-outlet area, impulse force power more preferably, significantly promotes cleaning effect；

(8) the utility model also promotes effluent seat and spin head effect using weighted spherical ball, further promotes dynamic scattering The outlet effect of water；

(9) the utility model carries blank using comb teeth-shaped bearing table, convenient for being loaded and unloaded and being transported to blank, compares tablet The bearing table of formula, carrying is better, more stable；

(10) the utility model is also covered with soft anticollision strip respectively holding object portion upper surface so that dibit feed mechanism in handling and When transporting blank, blank can be avoided to be contacted with metal object portion of holding, prevent blank from occurring that rupture, wound due to collision etc. and ask Topic ensures the quality of product.

Description of the drawings

Attached drawing described herein is used to provide a further understanding of the present invention, and forms one of the utility model Point, the illustrative embodiments and their description of the utility model are not formed for explaining the utility model to the utility model Improper restriction.In the accompanying drawings：

Fig. 1 is the front view of double-station feed mechanism described in the utility model；

Fig. 2 is the vertical view of double-station feed mechanism described in the utility model；

Fig. 3 is the side view of double-station feed mechanism described in the utility model.

Fig. 4 is the dimensional structure diagram of spray head described in the utility model；

Fig. 5 is the sectional view that water seat and swivel head are crossed described in the utility model；

Fig. 6 is spray head sectional view described in the utility model.

Specific embodiment

In order to make technical problem to be solved in the utility model, technical solution and advantageous effect clearer, clear, with Under in conjunction with the accompanying drawings and embodiments, the present invention is further described in detail.It should be appreciated that specific reality described herein Example is applied only to explain the utility model, is not used to limit the utility model.

As shown in Figure 1, 2, 3, a kind of double-station feed mechanism with cleaning function, the feeding structure described in the utility model Including rack 1, it is installed in first, second bearing table 11,12 of 1 both sides of rack and cleaning assembly 2；The drive of rack 1 first, Second bearing table 11,12 rotates；First, second bearing table 11,12 has holds object portion 111,121 in thin dentation arrangement, Object portion 111,121 is respectively held in interval and parallel distribution on same plane；It is described respectively hold object portion 111,121 upper surfaces be covered with it is soft Anticollision strip 3；

The cleaning assembly 2 is installed on bearing table 11,12, and for rinsing glazing platform (not shown)；It is described clear It washes component 2 and includes water spray unit 21, insufflation unit 22 and switch unit 23；

Water spray unit 21, including spray head 4,212 and first control valve 213 of water supply pipe；The spray head 4 is installed in 12 lower surface of bearing table, and connect with water supply pipe 212；First control valve 213 is used to that water supply pipe 212 to be controlled to open and close； The water supply pipe 212 includes inlet pipeline 212A and crosses water lines 212B；The inlet pipeline 212A is with crossing water lines 212B Between first control valve 213 is set；The water outlet for crossing water lines 212B connects with spray head 4；

Insufflation unit 22, including blow-out nozzle 221,222 and second control valve 223 of supply air line；The blow-out nozzle 221 are installed in 12 lower surface of bearing table, and connect with supply air line 222；Second control valve 223 is used to control supply air line 222 open and close；The supply air line 222 includes air inlet pipeline 222A and crosses air pipe 222B；The air inlet pipeline 222A is with crossing gas First control valve 213 is set between pipeline 222B；The outlet side for crossing air pipe 222B connects with blow-out nozzle 221；

Switch unit 23 is installed in the rack 1, and gives first control valve 213 and second for output order Control valve 223 acts, and controls that the spray head 4 is sprayed water and blow-out nozzle 221 blows to rinse glazing platform；The switch unit 23 Including sensing component 231 and master control unit (not shown)；The sensing component 231 is arranged on 12 upper table of the second bearing table Face；The master control unit is connected, and send control valve control signal and held to first, second control valve 213,223 with sensing component 231 Row is turned on and off acting.

More specifically, first, second bearing table 11,12 be respectively feeding, blanking bearing table, the spray head 4 and Blow-out nozzle 221 is arranged on the lower surface of the second bearing table 12.

More specifically, the water lines 212B excessively merges into an aqueous vapor channel with crossing air pipe 222B.

More specifically, as shown in Figure 4,5, 6, the spray head 4 includes sprinkling seat 41, swivel head 42, cross water seat 43 and into Water plate 44；The water cavity 410 excessively equipped with back taper, the swivel head 42 connect and are installed in water seat 43 excessively in the sprinkling seat 41 It is described to cross in water cavity 410；The swivel head 42 has jetting channel 420；43 peripheral wall of water seat of crossing has connecting morphism aquaporin 420 water portion 430 excessively；The water inlet plate 44 is arranged in sprinkling seat 41, offers the oblique mouth of a river connected with crossing water cavity 410 thereon 440；Weighted spherical ball 45 is further included, was installed on water seat 43；Wherein, 42 end of swivel head is set in arcuation, is butted on Sprinkling seat 41；The oblique mouth of a river 440 that water flows through water inlet plate 44 enters, and impacted water seat 43 and swivel head 42 rotates, and cocurrent passes through water It is sprayed behind portion 430 from jetting channel 420 and forms cyclic annular jetting.

Specific embodiment, as shown in Figures 1 to 6, a kind of double-station with cleaning function described in the utility model are sent Expect mechanism, mainly include with lower component：Rack 1, first, second bearing table 11,12, soft anticollision strip 3, sprinkling seat 41, rotation Water seat 43, water inlet plate 44, weighted spherical ball 45, water supply pipe 212, the first control valve 213, blow-out nozzle 221, gas supply are crossed in rotary head 42 Pipeline 222, the second control valve 223, sensing component 231 and master control unit；

Practical set is with using, and first, installs first, second control valve 213,223 in rack 1, the in the present embodiment First, the second control valve 213,223 is realized using solenoid valve, other valve bodies also can be used, come under the protection domain of the utility model；Peace Water supply pipe 212 and supply air line 222 are docked to one end of first, second solenoid valve 213,223 respectively after dress is fixed, it is another End then respectively with cross water lines 212B, cross air pipe 222B dock, hold object portion 121 lower surface set respectively and it is described mistake water pipe Road 212B, the spray head 4 and blow-out nozzle 221 for crossing air pipe 222B connections；Then by first, second solenoid valve 213,223 with Master control unit Electricity Federation in switch unit 23 (this master control unit is not shown in figure)；Secondly, 12 (this of the second bearing table of comb teeth-shaped Second bearing table 12 be blanking bearing table) on setting sensing component 231 (in the present embodiment by taking photoelectric sensor switch as an example, also may be used It is realized using other inductive switches)；Then it is laid with respectively in first, second bearing table 11 of each comb teeth-shaped, 12 upper surfaces soft Matter anticollision strip 3, for preventing blank damaged in collision；Finally 4 part of assembling spray head, will be equipped with water in the sprinkling seat 41 Chamber 410, the swivel head 42 connect with crossing water seat 43, then 43 upper surface of water seat setting weighted spherical ball 45 are being crossed, after the completion of installing It is integrally installed in crossing in water cavity 410 for back taper；The swivel head 42 has jetting channel 420, and water seat is crossed with described Water portion 430 of crossing on 43 peripheral walls is connected；Then it is located at and is arranged in sprinkling seat 41 by water inlet plate 44 lid, open up thereon There is the oblique mouth of a river 440 to be connected with crossing water cavity 410；Each sprinkling seat 41 is screwed to first, second bearing table 11,12 after assembling Lower surface, to complete entire assembling process；

In actual use, the double-station feed mechanism can correspond to multiple glazing platforms and be transported through blank, utilize simultaneously First, second bearing table 11,12 (feeding, discharge bearing table) realizes rapid transport；It for example, can be first with the first bearing table 11 Pickup one treats that blank of glazing etc. is stayed in outside glazing platform, treats the inside just after the completion of glazing blank, into using the second bearing table 12 direct insert take completed blank, after then sensing component 231 senses that the second bearing table 12 has completed blank, by Inductive signal sends master control unit to, and master control unit just sends out clear instruction to first, second control valve 213,223, to glazing Platform is cleaned；Control program can be manually set, and air blowing drying is being carried out or aqueous vapor is same after first carrying out spraying-rinsing for a period of time When injection etc., set according to actual demand；In cleaning process, spray head 4 sprays cricoid Dynamic Water, and work is former Reason is intake using the oblique mouth of a river 440 for plate 44 of intaking, and the flow after forms spiral water, then drives water seat 43 and rotation First 42 are crossing rotation in water cavity 410, and rotate water and then enter swivel head 42, and penetrating by swivel head 42 by crossing water portion 430 Aquaporin-4 20, which sprays, forms cyclic annular dynamic jetting, this Dynamic Water is cyclic annular spray, and constantly rotates and revolve with crossing water seat 43 Turn, not only widened projected area can also have high-strength impact force in a low voltage state simultaneously, play the effect of water-saving；

The water passage is merged into a channel with gas channel is crossed, and control valve can also use a switching valve.

The utility model provides a kind of double-station feed mechanism with cleaning function, easily simple in structure, reasonable design and reality Now, it realizes to shorten to manufacture using double-station feed mechanism and treats that glazing product is reached the standard grade and the offline waiting of glazing product in the process Interval time, while conveying can be carried out at the same time to multiple stations, effectively increase production efficiency；In addition, it adds clear to glazing platform Function is washed, without manually being cleaned, ensures that next product will not be stained with glaze when entering glazing platform, ensures product quality, pole The earth meets production requirement；The utility model offer cleans glazing platform using spray module and air blowing component, is dried up, under guarantee Bottom will not be stained with glaze after one blank is seated in glazing platform；In addition, spray module and air blowing component and the bearing table of feed mechanism Perfect adaptation realizes automation cleaning, while Improving The Quality of Products, production efficiency is increased substantially；The utility model is realized certainly Innervation is answered, and cleans spray when material is after glazing platform is moved away from i.e., glaze is effectively prevent to be led because being condensed after shelving overlong time Cleaning difficulty is caused to improve；Cleaned by way of quickly spraying and drying up, also reserved certain time carry out naturally dry or Other operating procedures are given to set aside some time；The water supply pipe and supply air line of the utility model are realized using independent pipeline, and are coordinated Independent control valve from structure installation and controls easily realization, more accurate in control；In cleaning process, water, autogenous cutting change more It is convenient；The utility model merges water lines with crossing air pipe, and carrying out aqueous vapor switching using a channel from structure rinses, to sending Expecting the volume requirement of structure reduces, and the position that water jet is opened up with inflatable mouth can reduce, is greatly lowered on production cost, from reality Border uses angle, it can be achieved that aqueous vapor combination, promotes hydraulic pressure, firing rate of injection water etc., more impact force, in low pressure after being mixed into air When can ensure cleaning effect；Further, it is also possible to generate the water mist with impact force, ensure to clean up；The utility model is using profit Automation control is realized with sensing component and master control unit, after the good blank of glazing is placed in bearing table, can just be proceeded by clear It washes, otherwise will not act, avoid not spraying；In addition, master control unit is controlled cleaning and drying up, avoid blank blanking to its Still in operations such as water spray air blowings during his region；The spray head of the utility model is installed using independent, is blocked up by external force collision or incrustation scale It is conveniently replaceable and repairs after plug；In addition, the utility model promotes cleaning performance, swivel head and mistake by the way of a kind of rotation Dynamic Water It is rotated in sprinkling seat after the cooperation of water seat, flows out cyclic annular Dynamic Water, not only increase water-outlet area, impulse force power more preferably, significantly carries Rise cleaning effect；The utility model also promotes effluent seat and spin head effect using weighted spherical ball, further promotes dynamic scattering The outlet effect of water；The utility model carries blank using comb teeth-shaped bearing table, convenient for being loaded and unloaded and being transported to blank, compares flat Board-like bearing table, carrying is better, more stable；The utility model is also covered with soft anticollision strip respectively holding object portion upper surface, makes Dibit feed mechanism is obtained when loading and unloading and transporting blank, blank can be avoided to be contacted with metal object portion of holding, prevent blank because touching It hits and the problems such as rupturing, wounding occurs, ensure the quality of product.

The preferred embodiment of the utility model has shown and described in above description, as previously described, it should be understood that this practicality is new Type is not limited to form disclosed herein, is not to be taken as the exclusion to other embodiment, and available for various other groups Conjunction, modification and environment, and above-mentioned introduction or the technology of related field can be passed through within the scope of the inventive concept described herein Or knowledge is modified.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, then It all should be in the protection domain of the appended claims for the utility model.

Claims (10)

1. a kind of double-station feed mechanism with cleaning function, it is characterised in that：The feeding structure includes rack, is installed in First, second bearing table and cleaning assembly of rack both sides；The rack drives the rotation of first, second bearing table；The cleaning Component is installed on bearing table, and for rinsing glazing platform；It is single that the cleaning assembly includes water spray unit, insufflation unit and switch Member；

Water spray unit, including spray head, water supply pipe and the first control valve；The spray head is installed in bearing table lower surface, And connect with water supply pipe；First control valve is used to that water supply pipe to be controlled to open and close；

Insufflation unit, including blow-out nozzle, supply air line and the second control valve；The blow-out nozzle is installed in bearing table following table Face, and connect with supply air line；Second control valve is used to that supply air line to be controlled to open and close；

Switch unit is installed in the rack, and controls valve events to first control valve and second for output order, The spray head water spray and blow-out nozzle is controlled to blow to rinse glazing platform.

2. a kind of double-station feed mechanism with cleaning function as described in claim 1, it is characterised in that：Described first, Second bearing table is respectively feeding, blanking bearing table, and the spray head and blow-out nozzle are arranged on the lower surface of the second bearing table.

3. a kind of double-station feed mechanism with cleaning function as claimed in claim 2, it is characterised in that：The feed pipe Road includes inlet pipeline and crosses water lines；First control valve is set between the inlet pipeline and excessively water lines；The mistake The water outlet of water lines connects with spray head.

4. a kind of double-station feed mechanism with cleaning function as claimed in claim 3, it is characterised in that：The air supply pipe Road includes air inlet pipeline and crosses air pipe；First control valve is set between the air inlet pipeline and excessively air pipe；The mistake The outlet side of air pipe connects with blow-out nozzle.

5. a kind of double-station feed mechanism with cleaning function as claimed in claim 4, it is characterised in that：It is described to cross water pipe An aqueous vapor channel is merged into road with crossing air pipe.

6. a kind of double-station feed mechanism with cleaning function as claimed in claim 1 or 2, it is characterised in that：It is described to open It closes unit and includes sensing component and master control unit；The sensing component is arranged on the second bearing table upper surface；The master control unit It is connected with sensing component, and sends control valve control signal and be turned on and off acting to the execution of first, second control valve.

7. a kind of double-station feed mechanism with cleaning function as described in claim 1, it is characterised in that：The spray head Including sprinkling seat, swivel head, cross water seat and water inlet plate；Cross water cavity equipped with back taper in the sprinkling seat, the swivel head with Water seat is crossed to connect and be installed in the water cavity excessively；The swivel head has jetting channel；The water seat peripheral wall of crossing has connection Jetting channel crosses water portion；The water inlet plate is arranged in sprinkling seat, offers the oblique mouth of a river connected with crossing water cavity thereon；Its In, the rotation cephalic par is set in arcuation, is butted on sprinkling seat；The oblique mouth of a river that water flows through water inlet plate enters, and impacts water seat And swivel head rotation, cocurrent spray to form cyclic annular jetting behind water portion from jetting channel.

8. a kind of double-station feed mechanism with cleaning function as claimed in claim 7, it is characterised in that：Further include counterweight Ball was installed on water seat.

9. a kind of double-station feed mechanism with cleaning function as described in claim 1, it is characterised in that：Described first, Second bearing table has holds object portion in thin dentation arrangement, respectively holds object portion in interval and parallel distribution on same plane.

10. a kind of double-station feed mechanism with cleaning function as claimed in claim 9, it is characterised in that：It is described respectively to hold Object portion upper surface is covered with soft anticollision strip.