CN104107878B - Core box structure for making large motor seat integral sand core - Google Patents

Core box structure for making large motor seat integral sand core Download PDF

Info

Publication number
CN104107878B
CN104107878B CN201410306308.9A CN201410306308A CN104107878B CN 104107878 B CN104107878 B CN 104107878B CN 201410306308 A CN201410306308 A CN 201410306308A CN 104107878 B CN104107878 B CN 104107878B
Authority
CN
China
Prior art keywords
core box
main body
box main
loose piece
core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201410306308.9A
Other languages
Chinese (zh)
Other versions
CN104107878A (en
Inventor
杨传栋
温锡祥
商景奇
李克先
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liaocheng Xin Luo Machinery Co Ltd
Original Assignee
Liaocheng Xin Luo Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liaocheng Xin Luo Machinery Co Ltd filed Critical Liaocheng Xin Luo Machinery Co Ltd
Priority to CN201410306308.9A priority Critical patent/CN104107878B/en
Publication of CN104107878A publication Critical patent/CN104107878A/en
Application granted granted Critical
Publication of CN104107878B publication Critical patent/CN104107878B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

The invention discloses a core box structure for making a large motor seat integral sand core. The core box structure comprises a pedestal, a core box main body, loose pieces and core stripping mechanisms, the core box main body is formed by an upper core box main body and a lower core box main body, the lower core box main body is placed on the pedestal and can walk along a railway on the pedestal, the upper core box main body is placed at the top of the lower core box main body and can walk along a railway at the top of the lower core box main body, the upper core box main body and the lower core box main body are respectively divided into a left retractable portion and a right retractable portion, the corresponding side portions of the upper core box main body and the lower core box main body are positioned and connected through positioning pins, the upper core box main body and the lower core box main body are provided with the loose pieces for making sand holes on the sand core respectively, and the left and right side portions of the upper core box main body and the left and right side portions of the lower core box main body are respectively provided with one of the core stripping mechanisms. The core box structure has the advantages of simple operation, labor intensity reduction, improvement of the production efficiency and quality of the large motor seat sand core, and solving of corresponding problems existing in the prior art.

Description

Prepare the core box structure of large-size machine support integral sand core
Technical field
The present invention relates to a kind of core box structure preparing core, particularly relate to one and prepare large-size machine support The core box structure of integral sand core.
Background technology
The making of large-size machine support core, mostly uses radially divided upper and lower two halves core to be formed, Die cost is low, and coremaking is simple, but the planarization in back-up sand face in the middle of bad guarantee core.Use during lower core The mode that will enter under two cores respectively, owing to the back-up sand face of two cores contacts, after being difficult to control lower core The height of core, the back-up sand face of core of need to polishing during core height, need to be by the centre of two halves core when core is low Paving, need to measure with clamp and the most just can control core height well, labor strength is big, production efficiency Low.
Summary of the invention
For solving above-mentioned technical problem, it is an object of the invention to provide a kind of processing ease, production efficiency low The core box structure preparing large-size machine support integral sand core.
The core box structure preparing large-size machine support integral sand core of the present invention, including base, core box main body, Loose piece and core ejection mechanism, described core box main body is made up of upper core box main body and lower core box main body two parts, institute Stating lower core box main body to be placed on base, and can walk by the track along base, described upper core box main body is placed in Lower core box body top, and can walk along the track of lower core box body top, upper core box main body and lower core box Main body be divided into left and right can two parts of folding, the left part of upper core box main body and lower core box main body Left part is located by connecting by alignment pin, the right part of upper core box main body and the right side of lower core box main body Part is located by connecting by alignment pin, and upper core box main body and lower core box main body are provided with at core On make the loose piece of sand hole, the left and right side part of upper core box main body and the left and right side of lower core box main body Core ejection mechanism it is provided with on Fen.
Further, the centre in core box main body is provided with and exempts from back-up sand occupy-place cylinder.
Further, described base is provided with the folding mould of the left and right part of core box main body of opening and close Mechanism.
Preferably, described clasp mould mechanism includes screw rod, plug plate and fixing seat, and described plug plate sets Being equipped with screwed hole, described screw rod screws on plug plate, and the lower end of described plug plate is arranged on pluggablely In the jack offered on described base, described fixing seat is fixed on the left side of lower core box main body or/and right side On Fen, fix and on seat, offer T-slot or dovetail groove, and vertically run through the upper end of fixing seat, screw rod One end is chimeric with the T-slot on fixing seat or dovetail groove, and can extract from the upper end of T-slot or dovetail groove.
Further, the loose piece in described upper core box main body includes top-pulling type cylindricality loose piece and lower de-formula cambered surface Loose piece, the lower end of described top-pulling type cylindricality loose piece is provided with locating dowel, in described lower de-formula cambered surface loose piece The heart offers the hole, location running through its two ends, and described upper core box main body offers loose piece installing hole, described Top-pulling type cylindricality loose piece is vertically installed in loose piece installing hole, and described lower de-formula cambered surface loose piece is placed in core box On flange in main body, this flange offering hole, location, the locating dowel of described top-pulling type cylindricality loose piece is worn Cross down the hole, location at de-formula cambered surface loose piece center, and insert in the hole, location on flange.
Further, the loose piece in described lower core box main body include de-formula cambered surface loose piece, tubular loose piece, Location bar and lower de-formula combination loose piece, described lower de-formula combination loose piece is placed on the boss in lower core box main body, The lower end of described tubular loose piece is placed on lower de-formula combination loose piece, and the lower end of described de-formula cambered surface loose piece is put In the upper end of tubular loose piece, the upper end of described de-formula cambered surface loose piece and the Hp contacts in lower core box main body, Offering hole, location on this flange, described location bar is through lower de-formula combination loose piece, tubular loose piece and upper de- Formula cambered surface loose piece, and insert in the hole, location on lower core box main body inward flange.
Further, described lower de-formula combination loose piece includes second time de-formula cambered surface loose piece and flat board loose piece, Described second time de-formula cambered surface loose piece is arranged in the locating slot of flat board loose piece upper surface.
Further, described base is additionally provided with operation location bar insert and depart from the location bar in hole, location Lift, described location bar lift is lever construction, and one end of lever is fixed with an ejector pin, top The upper end of pin is through the lower end in contact of the boss in lower core box main body with location bar.
Preferably, a diameter of more than 100 millimeters of the end face that the push rod of described core ejection mechanism contacts with core.
Preferably, the height of described base is more than 350 millimeters, and described base is provided with more than 10 Reinforcement.
The present invention, by being upper and lower double-layer structure by core box body design, is i.e. divided into lower core box main body and upper core Box main body, and in lower core box main body and upper core box main body, it is respectively mounted independent core ejection mechanism, thus in system It is beneficial to the molding sand tamping of bottom in core box main body (in lower core box main body), demoulding core box at present during core Main body and upper core box main body can depart from core respectively, the beneficially demoulding;Further, by core box master Internal centre is arranged exempts from back-up sand occupy-place cylinder, core is made hollow, it is possible to reduce back-up sand, alleviates sand Core weight, saves production cost;Further, by arranging core box main body of opening and close on base The clasp mould mechanism of left and right part, consequently facilitating the folding modulo operation of core box;By by core ejection mechanism The diameter of the end face that push rod contacts with core is set to more than 100 millimeters, it is ensured that push rod contacts with core Area, thus beneficially stripping operation;By the height of base is set to more than 350 millimeters, and at base On the reinforcement of more than 10 is set, thus ensure that intensity and the rigidity of base, decrease base and hanging Deformation during dress one-piece core box.
The present invention is simple to operate, advantageously reduces labor intensity, improves the production of large-size machine support core Efficiency and quality, and finally improve casting quality, solve the correspondence problem that prior art exists, be system The ideal tools of standby large-size machine support integral sand core.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the skill of the present invention Art means, and can being practiced according to the content of description, below with presently preferred embodiments of the present invention and join After closing accompanying drawing detailed description such as.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of one embodiment of the invention;
Fig. 2 is that the core box structure preparing large-size machine support integral sand core shown in Fig. 1 section view at P-P is shown It is intended to;
Fig. 3 is Fig. 2 close-up schematic view at A;
Fig. 4 is Fig. 2 close-up schematic view at B;
Fig. 5 is Fig. 2 close-up schematic view at C;
In figure: 1, base;11, track;12, jack;13, reinforcement;2, lower core box main body; 21, track;22, boss;23, flange;3, upper core box main body;31, flange;4, exempt from back-up sand to account for Position cylinder;5, core ejection mechanism;51, push rod;6, clasp mould mechanism;61, screw rod;62, plug plate; 63, fixing seat;71, top-pulling type cylindricality loose piece;72, lower de-formula cambered surface loose piece;73, upper de-formula cambered surface Loose piece;74, tubular loose piece;75, location bar;76, second time de-formula cambered surface loose piece;77, flat board is lived Block;8, location bar lift;81, lever;82, ejector pin.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is described in further detail. Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
See shown in Fig. 1 to Fig. 5, a kind of core box structure preparing large-size machine support integral sand core, bag Include base 1, core box main body, loose piece, exempt from back-up sand occupy-place cylinder 4, core ejection mechanism 5, clasp mould mechanism 6, Described core box main body is made up of upper core box main body 3 and lower core box main body 2 two parts, and lower core box main body 2 is put On base 1, and can walk by the track 11 along base 1, upper core box main body 3 is placed in lower core box main body 2 tops, and can walk along the track 21 at lower core box main body 2 top, upper core box main body 3 and lower core box master Body 2 be divided into left and right can two parts of folding, the left part of upper core box main body 3 and lower core box main body The left part of 2 is located by connecting by alignment pin, the right part of upper core box main body 3 and lower core box main body 2 Right part be located by connecting by alignment pin, upper core box main body 3 and lower core box main body 2 are provided with For making the loose piece of sand hole on core, the centre in core box main body is provided with exempts from back-up sand occupy-place cylinder 4, It is provided with top in the left and right side part of upper core box main body 3 and the left and right side part of lower core box main body 2 Core mechanism 5, base 1 is provided with the clasp mould mechanism 6 of the left and right part of core box main body of opening and close.
Further, clasp mould mechanism 6 includes screw rod 61, plug plate 62 and fixing seat 63, plugs plate Being provided with screwed hole on 62, screw rod 61 screws on plug plate 62, and the lower end of plug plate 62 is pluggable Be arranged on base 1 in the jack 12 offered, fixing seat 63 is fixed on the left side of lower core box main body 2 Or/and in right part, fixing seat 63 offers T-slot or dovetail groove, and vertically runs through fixing seat The upper end of 63, one end of screw rod 61 is chimeric with the T-slot on fixing seat 63 or dovetail groove, and can be from T The upper end of type groove or dovetail groove is extracted.
Further, the loose piece in upper core box main body 3 includes top-pulling type cylindricality loose piece 71 and lower de-formula cambered surface Loose piece 72, the lower end of top-pulling type cylindricality loose piece 71 is provided with locating dowel, in lower de-formula cambered surface loose piece 72 The heart offers the hole, location running through its two ends, and upper core box main body 3 offers loose piece installing hole, top-pulling type Cylindricality loose piece 71 is vertically installed in loose piece installing hole, and lower de-formula cambered surface loose piece 72 is placed in core box main body On flange 31 in 3, flange 31 offering hole, location, the locating dowel of top-pulling type cylindricality loose piece 71 is worn Cross down the hole, location at de-formula cambered surface loose piece 72 center, and insert in the hole, location on flange 31.
Further, the loose piece in lower core box main body 2 include de-formula cambered surface loose piece 73, tubular loose piece 74, Location bar 75 and lower de-formula combination loose piece, it is convex that described lower de-formula combination loose piece is placed in lower core box main body 2 On platform 22, the lower end of tubular loose piece 74 is placed on lower de-formula combination loose piece, upper de-formula cambered surface loose piece 73 Lower end is placed in the upper end of tubular loose piece 74, the upper end of upper de-formula cambered surface loose piece 73 and lower core box main body 2 Flange 23 contact, flange 23 offers hole, location, location bar 75 through lower de-formula combination loose piece, Tubular loose piece 74 and upper de-formula cambered surface loose piece 73, and insert the location on lower core box main body 2 inward flange 23 In hole.
Further, described lower de-formula combination loose piece includes second time de-formula cambered surface loose piece 76 and flat board loose piece 77, second time de-formula cambered surface loose piece 76 is arranged in the locating slot of flat board loose piece 77 upper surface.
Further, base 1 is additionally provided with operation location bar 75 insert and depart from the location bar in hole, location Lift 8, location bar lift 8 is in lever construction, and one end of lever 81 is fixed with an ejector pin 82, The upper end of ejector pin 82 is through the lower end in contact of the boss 22 in lower core box main body 2 with location bar 75.
Preferably, a diameter of more than 100 millimeters of the end face that the push rod 51 of core ejection mechanism 5 contacts with core.
Preferably, the height of base 1 is more than 350 millimeters, and base 1 is provided with more than 10 add Strong muscle 13.
The using method of the core box structure preparing large-size machine support integral sand core of the present embodiment is:
First twist core ejection mechanism 5 before coremaking to be exited by push rod 51, it is ensured that top board is equal with core box plane.Pass through Location bar lift 8, pushes up the location bar 75 in the middle of the tubular loose piece 74 of lower core box main body 2 bottom Rise, after tubular loose piece 74 and upper de-formula cambered surface loose piece 73 location, location bar lift 8 is fixed; Top-pulling type cylindricality loose piece 71 in upper core box main body 3 uses the mode put into from top lower de-formula cambered surface to be lived Block 72 positions.
Clasp mould mechanism 6 can be pulled down, and is put in three jacks 12 of diverse location on base 1, it is achieved Along the movement in core box folding mould direction on base, reduce screw rod 61 travel distance, shorten and open burn close time. With clasp mould mechanism 6, lower core box main body 2 is pushed into centre along track 11, after lower core box main body 2 is locked, Can be carried out the back-up sand operation of lower core box main body 2, when lower core box main body 2 is filled up soon, by upper core box master Body 3 is pushed into the position of middle matched moulds along track 21, with alignment pin by upper core box main body 3 and lower core box main body 2 position and lock, and whole core box is filled up core sand.
Take out after first top-pulling type cylindricality loose piece 71 gently being turned before playing core, with location bar lift 8 by tubular Location bar 75 in the middle of loose piece 74 falls, lower de-formula cambered surface loose piece 72, tubular loose piece 74 and upper de-formula Cambered surface loose piece 73 is taken out of with core.
Screw on the core ejection mechanism 5 in core box main body 3, upper core box main body 3 is disengaged with core;Back out core Core ejection mechanism 5 on box main body 2, disengages lower core box main body 2 with core, by clasp mould mechanism 6 The left and right part entirety of core box main body is pulled open.
The present invention is simple to operate, advantageously reduces labor intensity, improves the production of large-size machine support core Efficiency and quality, and finally improve casting quality, solve the correspondence problem that prior art exists, be system The ideal tools of standby large-size machine support integral sand core.
The above is only the preferred embodiment of the present invention, is not limited to the present invention, it is noted that For those skilled in the art, on the premise of without departing from the technology of the present invention principle, Can also make some improvement and modification, these improve and modification also should be regarded as protection scope of the present invention.

Claims (8)

1. the core box structure preparing large-size machine support integral sand core, it is characterised in that: include base, Core box main body, loose piece and core ejection mechanism, described core box main body is by upper core box main body and lower core box main body two Dividing and constitute, described lower core box main body is placed on base, and can walk by the track along base, described upper core Box main body is placed in lower core box body top, and can walk along the track of lower core box body top, upper core box master Body and lower core box main body be divided into left and right can two parts of folding, the left part of upper core box main body and under The left part of core box main body is located by connecting by alignment pin, the right part of upper core box main body and lower core box The right part of main body is located by connecting by alignment pin, and upper core box main body and lower core box main body are provided with For making the loose piece of sand hole on core, the left and right side part of upper core box main body and lower core box main body It is provided with core ejection mechanism in left and right side part;Core box main body of opening and close it is provided with on described base The clasp mould mechanism of left and right part;Described clasp mould mechanism includes screw rod, plug plate and fixing seat, institute Stating and be provided with screwed hole on plug plate, described screw rod screws on plug plate, and the lower end of described plug plate can Being arranged on described base in the jack offered to plug, described fixing seat is fixed on a left side for lower core box main body Side is or/and in right part, fixing seat offers T-slot or dovetail groove, and vertically runs through fixing seat Upper end, one end of screw rod is chimeric with the T-slot on fixing seat or dovetail groove, and can be from T-slot or dovetail The upper end of groove is extracted.
The core box structure preparing large-size machine support integral sand core the most according to claim 1, it is special Levy and be: the centre in core box main body is provided with exempts from back-up sand occupy-place cylinder.
The core box structure preparing large-size machine support integral sand core the most according to claim 1, it is special Levy and be: the loose piece in described upper core box main body includes top-pulling type cylindricality loose piece and lower de-formula cambered surface loose piece, The lower end of described top-pulling type cylindricality loose piece is provided with locating dowel, and the center of described lower de-formula cambered surface loose piece is offered There is the hole, location running through its two ends, described upper core box main body offers loose piece installing hole, described top-pulling type Cylindricality loose piece is vertically installed in loose piece installing hole, and described lower de-formula cambered surface loose piece is placed in core box main body Flange on, this flange offers hole, location, the locating dowel of described top-pulling type cylindricality loose piece is through lower de- The hole, location at formula cambered surface loose piece center, and insert in the hole, location on flange.
The core box structure preparing large-size machine support integral sand core the most according to claim 1, it is special Levy and be: the loose piece in described lower core box main body includes de-formula cambered surface loose piece, tubular loose piece, location bar Combining loose piece with lower de-formula, described lower de-formula combination loose piece is placed on the boss in lower core box main body, described The lower end of tubular loose piece is placed on lower de-formula combination loose piece, and the lower end of described de-formula cambered surface loose piece is placed in pipe The upper end of shape loose piece, the upper end of described de-formula cambered surface loose piece and the Hp contacts in lower core box main body, should Offering hole, location on flange, described location bar is through lower de-formula combination loose piece, tubular loose piece and upper de-formula Cambered surface loose piece, and insert in the hole, location on lower core box main body inward flange.
The core box structure preparing large-size machine support integral sand core the most according to claim 4, it is special Levy and be: described lower de-formula combination loose piece includes second time de-formula cambered surface loose piece and flat board loose piece, described the Two times de-formula cambered surface loose piece is arranged in the locating slot of flat board loose piece upper surface.
The core box structure preparing large-size machine support integral sand core the most according to claim 4, it is special Levy and be: be additionally provided with operation location bar on described base and insert and depart from the location bar alighting gear in hole, location Structure, described location bar lift is lever construction, and one end of lever is fixed with an ejector pin, ejector pin upper Hold the lower end in contact through the boss in lower core box main body with location bar.
The core box structure preparing large-size machine support integral sand core the most according to claim 1, it is special Levy and be: a diameter of more than 100 millimeters of the end face that the push rod of described core ejection mechanism contacts with core.
The core box structure preparing large-size machine support integral sand core the most according to claim 1, it is special Levy and be: the height of described base is more than 350 millimeters, described base is provided with more than 10 add Strong muscle.
CN201410306308.9A 2014-06-30 2014-06-30 Core box structure for making large motor seat integral sand core Active CN104107878B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410306308.9A CN104107878B (en) 2014-06-30 2014-06-30 Core box structure for making large motor seat integral sand core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410306308.9A CN104107878B (en) 2014-06-30 2014-06-30 Core box structure for making large motor seat integral sand core

Publications (2)

Publication Number Publication Date
CN104107878A CN104107878A (en) 2014-10-22
CN104107878B true CN104107878B (en) 2017-01-11

Family

ID=51704974

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410306308.9A Active CN104107878B (en) 2014-06-30 2014-06-30 Core box structure for making large motor seat integral sand core

Country Status (1)

Country Link
CN (1) CN104107878B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106180574B (en) * 2016-08-25 2018-02-13 共享装备股份有限公司 A kind of preparation method of wheel hub core
CN110039010B (en) * 2019-05-30 2021-04-20 大连金河铸造有限公司 Core making method for complex thin-wall core
CN110496940B (en) * 2019-08-14 2024-08-02 聊城新泺机械有限公司 Core box structure for preparing large U-shaped resin sand core

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2000272708A1 (en) * 2000-09-19 2002-04-02 Georg Fischer Disa A/S Mould-making machine with means for moving an upper core box to an inspection, cleaning, etc. position
CN201439112U (en) * 2009-07-22 2010-04-21 宁波全力机械模具有限公司 One-piece core box metal mold of large engine body cylinder core
CN201493439U (en) * 2009-08-19 2010-06-02 宁波全力机械模具有限公司 Die for vertical division type cold core box of integrated core in railway vehicle coupler inner chamber
CN101700561A (en) * 2009-08-19 2010-05-05 宁波全力机械模具有限公司 Mold of railway vehicle coupler inner chamber integrated core vertical parting cold core box
CN201799569U (en) * 2010-06-28 2011-04-20 芜湖新兴铸管有限责任公司 Core box base for large-caliber ductile iron pipe
CN203900385U (en) * 2014-06-30 2014-10-29 济柴聊城机械有限公司 Core box structure for manufacturing integrated sand core of large motor seat

Also Published As

Publication number Publication date
CN104107878A (en) 2014-10-22

Similar Documents

Publication Publication Date Title
CN104107878B (en) Core box structure for making large motor seat integral sand core
CN104118098B (en) Arc trachea mould arc core-pulling clamping mechanism
CN105010603A (en) Compression forming device and technology for craft brick tea
CN206500585U (en) Sand core for casting fastener
CN203610647U (en) Low-pressure casting mould provided with auxiliary lower-mould ejecting device
CN201921992U (en) Single-mode mold stripping machine with positioning structure
CN201279571Y (en) Railway freight car swing-bolster integer core die
CN203900385U (en) Core box structure for manufacturing integrated sand core of large motor seat
CN204869509U (en) Easily trade formula taper pin device
CN204711134U (en) A kind of novel sandbox
CN104325110B (en) A kind of mould for the manufacture of electric fan
CN201283411Y (en) Goods train side frame integral core mold
CN105108113B (en) A kind of branch mailbox, apical pore and go out casting machine
CN102941316B (en) Production method for machine tool guide rail casts
CN206316342U (en) The full-automatic sand casting moulding machine mould installion shaping plate structure of sand is penetrated up and down
CN206465402U (en) The T-shaped sliding block oblique top internal core-pulling mechanism of plastic chair mould
CN203649380U (en) Horizontal type gravity casting machine
CN108788026B (en) Automatic demolding mechanism for complex sand core mold for engine casting
CN104858375A (en) Novel sandbox
CN204747408U (en) Sand mo(u)ld shedder
CN204294873U (en) With the hot investment casting cartridge unit of guide-localization retaining mechanism
CN104493107B (en) A kind of angle case for Making mold
CN111318665A (en) Die-casting die for automobile end cover
CN204639047U (en) 4WEH16 valve body mo(u)lding line low-intensity exothermic riser
CN204747453U (en) Motormeter of slider pinning coils support die casting die to one side

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: 252000 Liaohe Road, Liaocheng Development Zone, Shandong, China, No. 169

Applicant after: Liaocheng Xin Luo Machinery Co., Ltd.

Address before: 252000 No. 169, Liaohe Road, Liaocheng Economic Development Zone, Liaocheng, Shandong

Applicant before: JICHAI LIAOCHENG MACHINERY CO., LTD.

COR Change of bibliographic data
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Core box structure for making large motor seat integral sand core

Effective date of registration: 20181221

Granted publication date: 20170111

Pledgee: Huaxia Bank Limited by Share Ltd Liaocheng Dongchang Branch

Pledgor: Liaocheng Xin Luo Machinery Co., Ltd.

Registration number: 2018370000227