CN108501329B - European style backrest chair frame formed by integral injection molding and injection mold thereof - Google Patents
European style backrest chair frame formed by integral injection molding and injection mold thereof Download PDFInfo
- Publication number
- CN108501329B CN108501329B CN201810421171.XA CN201810421171A CN108501329B CN 108501329 B CN108501329 B CN 108501329B CN 201810421171 A CN201810421171 A CN 201810421171A CN 108501329 B CN108501329 B CN 108501329B
- Authority
- CN
- China
- Prior art keywords
- mold
- core
- ejection
- block
- cavity
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/44—Furniture or parts thereof
- B29L2031/443—Chairs
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a backrest chair frame which has an European style, is integrally formed, removes a chair surface structure in the integral structure, can conveniently replace hard and soft chair surfaces, can be used for producing different using effects, solves the problem that the European chair surface is limited to the demolding of an injection mold core in the injection molding process, and simultaneously discloses an injection mold for injection molding production.
Description
Technical Field
The invention relates to the field of furniture manufacturing, in particular to an integral injection molding European style backrest chair frame and an injection mold thereof.
Background
The European style backrest chair is characterized in that the appearance and comfortable and stable modeling of the European style backrest chair are toughed by users favoring European style furniture style, but the European style backrest chair is mainly made of European style flower type decorative chair surfaces and chair legs, the European style backrest chair has larger production and processing difficulty, the existing European style backrest chair is mainly made of wood materials which are divided into a plurality of sections for wood riveting combination, the flower type hollowed-out modeling is mainly processed by professionals, the whole cost is higher, the productivity is low, the environment is also not good, so the backrest chair with European style can be produced in an integral injection molding mode, the problems can be fully solved, but most of the existing plastic chairs in the market are mostly formed by blow molding, a small amount of injection molding chairs are also just chair styles with right sides, and the problems of unreasonable design, difficulty, material waste and the like generally exist in the design of a designed mold under the condition that the front mold and the back mold cannot be realized in the design process of an injection mold under the design of the condition that the chair structure is irregular in bending of the chair legs and the like.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art and provides an integral injection molding European style backrest chair frame and an injection mold thereof.
In order to achieve the above purpose, the technical scheme of the integral injection molding European style backrest chair provided by the invention is as follows: the back seat frame is integrally injection molded, the back legs on two sides are upwards connected with each other to form a back rest part of the back seat, the lower parts of the back legs are connected with the front legs to form a middle seat frame, the lower ends of the seat frame are provided with rolling teeth which are connected with the lower parts of the back legs and the front legs, the center of the seat frame is provided with an opening, the inner end face of the opening is uniformly provided with a plurality of outwardly convex seat fixing blocks, the end faces of the seat fixing blocks are provided with matched connecting holes, the end faces of the back rest parts can be provided with hollowed-out notches, and the front legs and the back legs can be arranged into irregular arc-shaped bent seat leg structures.
The backrest chair has the beneficial technical effects that: the backrest chair frame adopting the structure has European style, is integrally formed, removes a chair surface structure in the integral structure, can be conveniently matched with hard and soft chair surfaces in the production process, can be used for producing different using effects in the production process, solves the problem of demolding limitation of the European style chair surface to the core of the injection mold in the injection molding process, and ensures that the core is demolded conveniently through the structure, thereby realizing the feasibility of injection molding of the European backrest chair.
In order to achieve the aim of injection molding and production of the integral injection molded European style backrest chair, the invention simultaneously provides a matched technical scheme of the injection mold of the European style backrest chair: the mold comprises a front mold and a rear mold capable of being matched with the front mold, a front mold cavity is formed in the front of the front mold, a rear mold cavity is formed in the front of the rear mold, a mold core is arranged in a cavity formed after the front mold cavity and the rear mold cavity are matched, a chair front dumping direction serves as a reference direction, sliding blocks are arranged on two sides of the mold core, a bottom mold is arranged below the mold core and the two sliding blocks, a plurality of first guide holes are formed in the front two sides of the front mold, the central axis of the first guide holes is perpendicular to the front of the front mold, third guide holes are formed in the front two sides of the rear mold, a first guide roller is fixedly arranged on each first guide hole and penetrates through the third guide holes, at least one second guide hole is formed in the two sides of the mold core, a fourth guide hole is formed in the position of the rear mold corresponding to the second guide holes, the second guide roller is fixedly arranged on each second guide hole, the sliding block, the mold core is perpendicular to the front mold cavity, the rear mold cavity is perpendicular to the front side of the front mold, the back mold cavity is formed by the back mold, the ejector mechanism is arranged on the side of the back mold, the ejector mechanism is arranged on the ejector mechanism, the ejector mechanism is arranged on the side of the ejector mechanism, and the ejector mechanism is matched with the side mold cavity, and the ejector mechanism is arranged on the side mold.
As a further scheme of the invention: the front mould is set to the template that has the ladder step, the preceding die cavity is outside terrace die cavity, the preceding terminal surface structure of main part shaping back chair frame, the back die cavity is inside die cavity, the rear end face structure of main part shaping back chair frame the core sets up between front mould and back mould, and main part shaping chair frame and chair leg are inside, slider and the side structure of core cooperation shaping back chair frame, the bottom surface of die block cooperation shaping back chair frame, the die block sets up in slider and core lower extreme and card access front mould and back die cavity, and whole combination is reasonable.
As a further scheme of the invention: each sliding block comprises a chair frame side sliding block and a front leg sliding block which are matched with corresponding core sides, the rear end faces of the chair frame side sliding blocks on two sides are connected with the core to form left and right side chair frame cavities, the front leg sliding blocks are matched with the chair frame side sliding blocks, the core and the front mold to form front leg cavities, T-shaped sliding grooves are formed in the chair frame side sliding blocks and the front leg sliding blocks, and the T-shaped sliding grooves are matched with corresponding chair frame sliding block lateral parting oil cylinders and front leg sliding block lateral parting oil cylinders and are divided into two sections of sliding block structures, so that complex structures with patterns on the side faces of the chair frames and the front leg positions on the cores can be respectively subjected to injection molding, and the corresponding lateral parting oil cylinders are used for parting, so that the overall demolding and parting are facilitated.
As a further scheme of the invention: the seat frame side slider passes through the connecting plate cooperation with the foreleg slider and connects to set up in the core upper end, the core cooperation end is equipped with the breach draw-in groove, the joint has spacing fixture block to carry out spacing fixedly to seat frame side slider and foreleg slider on the breach draw-in groove, because the slider position is the integral molding part, needs the strict limit position.
As a further scheme of the invention: the die block is connected and locates core and preceding leg slider lower extreme, and the front end cooperatees with back mould, core and forms back leg die cavity, and the lower extreme is connected and is equipped with two oblique ejection mechanisms that the symmetry set up inwards, oblique ejection mechanism swing joint is in the roof upper end, be equipped with the core kicking block in the core, the core kicking block is connected with the ejector pin on the oblique ejection mechanism and drives the product and push out, and ejection mechanism's setting is convenient for whole drawing of patterns parting.
As a further scheme of the invention: the top plate comprises a first top plate and a second top plate, the oblique ejection mechanism is arranged in a matched notch groove of the first top plate, a bottom die ejection cylinder is arranged on the second top plate, the bottom die ejection cylinder penetrates through the first top plate and the second top plate to be in limiting clamping connection with the lower end of the bottom die, the oblique ejection mechanism comprises a limiting groove block, a matched sliding groove and an oblique ejection needle, the limiting groove block is in clamping connection with the notch groove of the first top plate, the matched sliding groove is connected with the oblique ejection needle, the oblique ejection needle is slidably arranged in a sliding groove notch formed in the limiting groove block, the oblique ejection needle is connected with the core ejection block, a plurality of straight ejection guide posts are further arranged at the upper end of the top plate, the straight ejection guide posts are connected and penetrate through the bottom die to be abutted against the matched end face of the core, the core ejection block comprises a bottom die core ejection block and an ejection core ejection block, the bottom die core ejection block is fixedly connected with the core, the end face is further in relative matching with the straight ejection guide posts, and the core ejection block penetrates through the core ejection block to be connected with the ejection core ejection block, and the core ejection block is driven by the oblique ejection needle to move the ejector back core chair to be separated outwards from the core ejecting seat molding piece.
As a further scheme of the invention: the front mould rear end face is equipped with strip breach recess, is equipped with the connection slat in, it connects the back mould cooperation terminal surface to connect the slat both sides to be equipped with drag hook stroke subassembly, connect to be equipped with a plurality of thimble on the connection slat and pass the front mould and support in the die cavity terminal surface, the sprue sets up in the back mould rear end face.
As a further scheme of the invention: the male die cavity protruding end edge end face of the front die is uniformly provided with positioning notch grooves, the female die cavity matching end of the rear die is provided with a matched positioning block, the male die cavity end face is provided with a first limiting groove, the matching position of the core and the first limiting groove is provided with a first limiting protrusion, the rear end of the core is provided with a second limiting groove, and the rear die matching end face is provided with a second limiting protrusion.
As a further scheme of the invention: the mold core is characterized in that positioning notch grooves are formed in the side faces of two sides of the mold core, a mold core limiting block is arranged on the positioning notch grooves, T-shaped notch grooves are formed in the end faces of the mold core limiting block, a mold separating ejection cylinder is matched with the T-shaped notch grooves, and the mold separating ejection cylinder is fixedly arranged on the side face of the rear mold.
Compared with the prior art, the European style backrest chair injection mold has the beneficial effects that: the back seat frame with the European style seat frame opening is formed by designing a front mold male mold cavity, a rear mold female mold cavity, a bottom mold and an injection molding cavity formed by combining and matching a mold core with two sections of slide blocks of a seat frame side slide block and a front leg slide block, and is matched with a demolding parting mechanism matched with the respective style seat frame opening.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of a backrest frame according to the present invention.
Fig. 2 is a schematic side view of an injection mold embodiment of the European style back chair frame of the present invention.
Fig. 3 is a schematic perspective view of an injection mold of an embodiment of the European style back rest chair frame of the present invention.
Fig. 4 is a schematic view of the front mold and the core part of the injection mold according to the embodiment.
Fig. 5 is a schematic diagram of the front mold structure of the injection mold embodiment.
Fig. 6 is a schematic view of a rear mold structure of the injection mold embodiment.
Fig. 7 is a schematic view of a core portion structure of the injection mold embodiment.
Fig. 8 is a schematic perspective view of a core of the injection mold according to the embodiment of fig. 1.
Fig. 9 is a schematic perspective view of a core of the injection mold according to the embodiment 2.
Wherein the reference numerals are as follows: rear leg 11, front leg 12, seat frame 13, roll neck 14, backrest 15, seat fixing block 16, front mold 20, male mold cavity 21, first guide hole 22, first limit groove 23, positioning notch groove 24, rear mold 30, female mold cavity 31, third guide hole 32, fourth guide hole 33, second limit protrusion 34, core 40, fourth guide hole 41, second limit groove 42, positioning notch groove 43, seat frame side slider notch groove 44, front leg slider notch groove 45, core top block notch 46, first limit protrusion 47, bottom mold 50, slider 60, seat frame side slider 61, and seat frame side slider groove front leg slide block 62, bottom die core ejector block 71, ejection core ejector block 72, top plate 80, first top plate 81, second top plate 82, parting cylinder 91, front leg slide block lateral parting cylinder 92, chair frame side slide block lateral parting cylinder 93, bottom die ejector cylinder 94, upper ejector cylinder 95, core stopper 96, draw hook stroke assembly 100, draw hook stroke rod 101, connecting slat 102, ejector pin ejector cylinder 103, ejector pin 104, oblique ejector mechanism 110, limit groove block 112, mating chute 113, oblique ejector pin 111, straight ejector guide post 114, first guide roller 120, and second guide roller 130.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, in an embodiment of the present invention, in which the backrest frame is integrally injection molded, the rear legs 11 on both sides are upwardly connected and bent to form the backrest portion 15 of the backrest, in this embodiment, the end surface of the backrest portion is provided with a plurality of hollowed-out notch modeling, and the middle portion is further provided with an euro pattern modeling plate, which is only one euro structure design in this embodiment, the whole backrest portion is also designed in a full-face plate or circular arc notch manner, in addition, the lower portions of the rear legs 11 are connected with the front legs 12 to form a middle seat frame 13, the lower ends of the seat frames 13 are provided with rolling teeth 14 connected with the lower portions of the rear legs and the front legs, the whole structure is reinforced, and meets the design requirement of the euro modeling backrest, and is characterized in that the seat frame is provided with an opening at the center, instead of a seat surface integrally, the opening inner end surface is uniformly provided with a plurality of outwardly protruding seat surface fixing blocks 13, and the seat surface fixing block is provided with a matching connection hole, in which the front legs and the rear legs are arranged in an irregular arc bending leg structure, in this embodiment, the backrest structure is also provided with a round arc bending leg structure, in this embodiment, the seat surface is not matched with a mold, and the insert is produced in the soft mold, thereby the injection molding structure is realized, and the soft mold is easy to realize in the production process of the injection molding of the backrest structure.
Referring to fig. 2 to 9, the present invention also provides an embodiment for an injection mold for integrally injection molding an euro-back seat frame, wherein the technical scheme of the embodiment is as follows: an injection mold for injection molding an European style backrest chair frame comprises a front mold 20 and a rear mold 30 which can be matched with the front mold, wherein a front mold cavity is formed on the front surface of the front mold, a rear mold cavity is formed on the front surface of the rear mold, a core 40 is arranged in a cavity formed after the front mold cavity and the rear mold cavity are matched, the front tilting direction of the chair is taken as a reference direction, sliding blocks 60 are arranged on two sides of the core 40, a bottom mold 50 is arranged under the core 40 and the two sliding blocks, in addition, two first guide holes 22 are formed on two sides of the front surface of the front mold 20, the central axis of the first guide holes 22 is perpendicular to the front surface of the front mold, a third guide hole 32 is formed on two sides of the front surface of the rear mold corresponding to the first guide holes, a first guide roller 120 and penetrates through the third guide holes, two second guide holes 41 are formed on two sides of the core 40, a fourth guide hole 33 is formed on the position corresponding to the second guide holes of the rear mold, a second guide roller 130 is fixedly arranged on each second guide hole, a top plate 60 is formed on the side of the core 40, the two sides of the core 40 are matched with the top plate 40, the top plate 80 is formed by combining the two side of the top plate 50 with the two side of the front mold, and the top plate 50, the top plate 50 is formed by the two side of the top plate 50, and the top plate 50 is formed by the top plate 50 and the top plate 50 is matched with the top plate 50; in the embodiment, the front mold is set as a template with a step and is matched with the chair shape, the front mold cavity is an outward male mold cavity 21, the front end surface structure of the main body molded backrest frame is formed, the rear mold cavity is an inward female mold cavity 31, the main body molded backrest frame is of a rear end surface structure, the core 40 is arranged between the front mold 20 and the rear mold 30, the main body molded backrest frame and the inside of the chair legs, the sliding block 60 and the core are matched with each other to form the side surface structure of the backrest frame, the bottom mold 50 is matched with the bottom surface of the molded backrest frame, and the bottom mold 50 is arranged at the lower ends of the sliding block 60 and the core 40 and is clamped into the front mold cavity and the rear mold cavity, so that the integral combination is reasonable; the left and right sliding blocks comprise a chair frame side sliding block 61 and a front leg sliding block 62 which are matched with the corresponding core side edges, the rear ends of the chair frame side sliding blocks 61 on the two sides are connected with the inner end surfaces of the rear mould and the core to form a left side chair frame cavity and a right side chair frame cavity, the front leg sliding block 62 is matched with the chair frame side sliding block, the core and the front mould to form a front leg cavity, T-shaped sliding grooves are formed in the chair frame side sliding block and the front leg sliding block, a relative chair frame sliding block lateral parting oil cylinder 93 and a front leg sliding block lateral parting oil cylinder 92 are matched on the T-shaped sliding grooves, the sliding blocks are divided into two sections of sliding block structures, the two sections of sliding blocks can be respectively corresponding to complex structures with patterns on the side surfaces of the chair frame and the front leg positions on the core for injection molding, and the corresponding lateral parting oil cylinders are used for parting, so that the integral demolding parting is facilitated; in addition, the side sliding block 61 of the chair frame and the sliding block 62 of the front leg are connected and arranged at the upper end of the core 40 through the connecting plate in a matched manner, the matched end of the core is provided with notch clamping grooves which are respectively a notch clamping groove 44 of the side sliding block of the chair frame and a notch clamping groove 45 of the sliding block of the front leg, and a limiting clamping block is clamped on the corresponding notch clamping groove to limit and fix the side sliding block of the chair frame and the sliding block of the front leg, and the sliding block part is an integral forming part and needs to strictly limit the position; the bottom die 50 is connected with the lower ends of the core 40 and the front leg sliding blocks 62, the front ends are matched with the rear die 30 and the core 40 to form a rear leg cavity, the lower ends are connected with two inclined ejection mechanisms 110 which are symmetrically and inwards arranged, the inclined ejection mechanisms are movably connected with the upper end of a top plate, a core ejection block is arranged in the core, the core ejection block is connected with a push rod on the inclined ejection mechanism to drive a product to be ejected, and the arrangement of the ejection mechanism is convenient for integral demolding and parting; the top plate comprises a first top plate 81 and a second top plate 82, the inclined ejection mechanism 110 is arranged in a matched notch groove of the first top plate, the second top plate is provided with a bottom die ejection cylinder 94, the bottom die ejection cylinder 94 penetrates through the first top plate 81 and the second top plate 82 to be in limit clamping connection with the lower end of the bottom die 50, the inclined ejection mechanism comprises a limit groove block 112, a matched sliding groove 113 and an inclined ejection needle 111, the limit groove block 112 is in clamping connection with the notch groove of the first top plate, the matched sliding groove 113 is connected with the inclined ejection needle 11, the inclined ejection mechanism can slide in a sliding groove notch arranged in the limit groove block 112, the inclined ejection needle is connected with a core ejection block, the upper end of the top plate is further provided with a plurality of straight ejection guide columns 114, the straight ejection guide columns 114 are connected with and penetrate through a bottom die to be against a matched end face of the core, the core ejection block 71 and the core ejection block 72 are integrally connected and fixed, the end face is also in opposite matching arrangement with the straight ejection guide columns 114, the inclined ejection needle 111 penetrates through the bottom die 71 and the ejection block 72 to drive the core ejection block 72 to move a core chair ejector block 72 to separate from a die ejector seat outside; the front mold is provided with a strip-shaped notch groove on the rear end surface, a connecting slat 102 is arranged in the front mold, draw hook stroke components 100 are arranged on two sides of the connecting slat 102 and are connected with the matching end surface of the rear mold, three ejector pins 104 are connected with the connecting slat 102 and penetrate through the front mold to be abutted against the end surface of the cavity, and the main flow passage is arranged on the rear end surface of the rear mold 30; the edge end surface of the protruding end of the male die cavity of the front die is uniformly provided with a plurality of positioning notch grooves 24, the end surface of the male die cavity is provided with a first limit groove 23, a first limit protrusion 47 is arranged at the matching position of the core and the first limit groove, the rear end of the core is provided with a second limit groove 42, and the matching end surface of the rear die is provided with a second limit protrusion 34; the mold core is characterized in that positioning notch grooves 43 are formed in the side faces of two sides of the mold core, a mold core limiting block 96 is arranged on the positioning notch grooves 43, T-shaped notch grooves are formed in the end faces of the mold core limiting block 96, a mold separation ejection oil cylinder 91 is matched with the T-shaped notch grooves, and the mold separation ejection oil cylinder 91 is fixedly arranged on the side face of the rear mold.
The design principle effect of the injection mold of the invention is as follows: the injection mold of the product is designed into a front mold male mold cavity, a rear mold female mold cavity, a bottom mold 50 and an injection molding cavity formed by combining and matching a mold core with a seat frame side slide block 61 and a front leg slide block 62 to form a backrest seat frame with a seat frame opening in European style, and is matched with a demolding parting mechanism matched with each other, the mold core 40 and a molded part are firstly integrated with the front mold 20 from the rear mold 30 by a parting cylinder 91, the molded part, the mold core 40 and the front mold 20 are separated by a thimble 104, the slide blocks are separated from the mold core by a side parting cylinder, the bottom mold 50 is pushed by a bottom mold ejection cylinder 94 to be separated from the mold core, finally the mold core 40 is pushed by an inclined ejector pin 111 and a straight ejector guide post 114 to be separated from the molded part, so that the injection molding of the European backrest seat which is difficult to perform injection molding in the prior art is realized, the whole mold structure is reasonable, the problem of difficult in the injection molding parting of the European backrest seat is effectively solved, and the whole injection molding process is finished at one step, and the operation is simple and convenient.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. An injection mold for integrally injection molding an European style backrest chair frame, wherein the backrest chair frame is integrally injection molded, rear legs on two sides are upwards connected and bent to form a backrest part of the backrest chair, the lower parts of the rear legs are connected with a front leg, the lower end of the seat frame is provided with a rolling mouth tooth which is connected with the lower parts of the rear legs and the front legs, the center of the seat frame is provided with an opening, the inner end surface of the opening is uniformly provided with a plurality of outwardly protruding seat fixing blocks, the end surfaces of the seat fixing blocks are provided with matched connecting holes, the end surfaces of the backrest part are provided with hollowed-out notches, and the front legs and the rear legs are arranged into irregular arc-shaped bent seat leg structures; the injection mold comprises a front mold and a rear mold capable of being clamped with the front mold, a front mold cavity is formed in the front of the front mold, a rear mold cavity is formed in the front of the rear mold, a mold core is arranged in a cavity formed after the front mold cavity and the rear mold cavity are clamped, and the front dumping direction of the chair is used as a reference direction, and the injection mold is characterized in that: the mold comprises a mold body, a front mold cavity, a back seat cavity, a top plate, a core pulling ejection mechanism, a mold separating pushing mechanism, a side parting mechanism and a side parting mechanism, wherein sliding blocks are arranged on two sides of the mold core, a bottom mold is arranged under the mold core and the two sliding blocks, a plurality of first guide holes are formed in two sides of the front surface of the front mold, the central axes of the first guide holes are perpendicular to the front surface of the front mold, third guide holes are formed in the positions, corresponding to the first guide holes, of two sides of the front surface of the back mold, a first guide roller is fixedly arranged on each first guide hole and penetrates through the third guide holes, at least one second guide hole is formed in two sides of the mold core, a fourth guide hole is formed in the position, corresponding to the second guide hole, of the back mold, a second guide roller is fixedly arranged on each second guide hole, and penetrates through the second guide holes, the sliding block, the mold core, the back mold cavity and the bottom mold form a back seat cavity, and a top plate are arranged at the outer ends of the bottom mold; the front mold is set as a mold plate with a step, the front mold cavity is an outward male mold cavity, the main body forms the front end surface structure of the backrest frame, the rear mold cavity is an inward female mold cavity, the main body forms the rear end surface structure of the backrest frame, the mold core is arranged between the front mold and the rear mold, the main body forms the inside of the seat frame and the seat legs, the slide block and the mold core are matched to form the side surface structure of the backrest frame, the bottom mold is matched to form the bottom surface of the backrest frame, and the bottom mold is arranged at the lower ends of the slide block and the mold core and is clamped into the front mold and the rear mold cavity; each sliding block comprises a chair frame side sliding block and a front leg sliding block which are matched with corresponding core sides, the inner end faces of the rear molds of the chair frame side sliding blocks on the two sides are connected with the cores to form left and right side chair frame cavities, the front leg sliding blocks are matched with the chair frame side sliding blocks, the cores and the front molds to form front leg cavities, T-shaped sliding grooves are formed in the chair frame side sliding blocks and the front leg sliding blocks, and corresponding chair frame sliding block lateral parting oil cylinders and front leg sliding block lateral parting oil cylinders are matched on the T-shaped sliding grooves.
2. An injection mold for integrally injection molding an euro-back chair frame as claimed in claim 1, wherein: the seat frame side slider passes through the connecting plate cooperation with the foreleg slider and connects to set up in the core upper end, the core cooperation end is equipped with breach draw-in groove, the joint has spacing fixture block to carry out spacing fixedly to seat frame side slider and foreleg slider on the breach draw-in groove.
3. An injection mold for integrally injection molding an euro-back chair frame as claimed in claim 1, wherein: the bottom die is connected and locates the core and the front leg slider lower extreme, and the front end cooperatees with back mould, core and forms back leg die cavity, and the lower extreme is connected and is equipped with two oblique ejection mechanisms that the symmetry set up inwards, oblique ejection mechanism swing joint is in the roof upper end, be equipped with the core kicking block in the core, the core kicking block is connected with the ejector pin on the oblique ejection mechanism and drives the product ejecting.
4. An injection mold for integrally injection molding an euro-back chair frame as claimed in claim 3, wherein: the top plate comprises a first top plate and a second top plate, the oblique ejection mechanism is arranged in a matched notch groove of the first top plate, a bottom die ejection cylinder is arranged on the second top plate, the bottom die ejection cylinder penetrates through the first top plate and the second top plate to be in limiting clamping connection with the lower end of the bottom die, the oblique ejection mechanism comprises a limiting groove block, a matched sliding groove and an oblique ejection needle, the limiting groove block is in clamping connection with the notch groove of the first top plate, the matched sliding groove is connected with the oblique ejection needle, the oblique ejection needle is slidably arranged in a sliding groove notch formed in the limiting groove block, the oblique ejection needle is connected with the core ejection block, a plurality of straight ejection guide posts are further arranged at the upper end of the top plate, the straight ejection guide posts are connected and penetrate through the bottom die to be abutted against the matched end face of the core, the core ejection block comprises a bottom die core ejection block and an ejection core ejection block, the bottom die core ejection block is fixedly connected with the core, the end face is further in relative matching with the straight ejection guide posts, and the core ejection block penetrates through the core ejection block to be connected with the ejection core ejection block, and the core ejection block is driven by the oblique ejection needle to move the ejector back core chair to be separated outwards from the core ejecting seat molding piece.
5. An injection mold for integrally injection molding an euro-back chair frame as claimed in claim 1, wherein: the front mould rear end face is equipped with strip breach recess, is equipped with the connection slat in, it is equipped with drag hook stroke subassembly connection back mould cooperation terminal surface to connect the slat both sides, connect to be equipped with a plurality of thimble on the connection slat and pass the front mould and support in the die cavity terminal surface, wherein injection mold's sprue sets up in back mould rear end face.
6. An injection mold for integrally injection molding an euro-back chair frame as claimed in claim 1, wherein: the male die cavity protruding end edge end face of the front die is uniformly provided with positioning notch grooves, the female die cavity matching end of the rear die is provided with a matched positioning block, the male die cavity end face is provided with a first limiting groove, the matching position of the core and the first limiting groove is provided with a first limiting protrusion, the rear end of the core is provided with a second limiting groove, and the rear die matching end face is provided with a second limiting protrusion.
7. An injection mold for integrally injection molding an euro-back chair frame as claimed in claim 2, wherein: the mold core is characterized in that positioning notch grooves are formed in the side faces of two sides of the mold core, a mold core limiting block is arranged on the positioning notch grooves, T-shaped notch grooves are formed in the end faces of the mold core limiting block, and a mold separating ejection cylinder of the injection mold is fixedly arranged on the side face of the rear mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810421171.XA CN108501329B (en) | 2018-05-04 | 2018-05-04 | European style backrest chair frame formed by integral injection molding and injection mold thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810421171.XA CN108501329B (en) | 2018-05-04 | 2018-05-04 | European style backrest chair frame formed by integral injection molding and injection mold thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108501329A CN108501329A (en) | 2018-09-07 |
| CN108501329B true CN108501329B (en) | 2023-09-08 |
Family
ID=63400012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810421171.XA Active CN108501329B (en) | 2018-05-04 | 2018-05-04 | European style backrest chair frame formed by integral injection molding and injection mold thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108501329B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111941093A (en) * | 2020-08-04 | 2020-11-17 | 韦民华 | Production process of blow-molded stainless steel chair |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6149240A (en) * | 1998-12-04 | 2000-11-21 | Pietrzak; Joseph J. | Shroud for the underside of a chair, and a molded seat frame for use therewith |
| JP2005335243A (en) * | 2004-05-27 | 2005-12-08 | Takano Co Ltd | Resin molding component for chair and method for producing resin molding component |
| US7806473B1 (en) * | 2005-11-21 | 2010-10-05 | Faiks Frederick S | Stackable chair and framework therefor |
| JP2011173268A (en) * | 2010-02-23 | 2011-09-08 | Sankei Kogyo Kk | Method of manufacturing chair member having mesh, and the chair member |
| CN202264364U (en) * | 2011-09-16 | 2012-06-06 | 浙江星威办公家具制造有限公司 | Combined angle lifting demolding mechanism for plastic chair molds |
| CN102514150A (en) * | 2011-12-28 | 2012-06-27 | 深圳市银宝山新科技股份有限公司 | Method for making chairs and chair mold releasing device |
| CN102555167A (en) * | 2012-03-26 | 2012-07-11 | 揭阳市大立模具厂有限公司 | Inner core-pulling type mold |
| CN203973982U (en) * | 2014-07-10 | 2014-12-03 | 台州市黄岩汉威塑料模具有限公司 | The built-in ejection cylinder leakage preventing mechanism of plastic chair mold |
| CN105563765A (en) * | 2016-02-25 | 2016-05-11 | 浙江森川家具有限公司 | Injection mold suitable for complex plastic part and demolding method of injection mold |
| CN206465402U (en) * | 2016-12-20 | 2017-09-05 | 台州市博纳模具有限公司 | The T-shaped sliding block oblique top internal core-pulling mechanism of plastic chair mould |
| CN107160641A (en) * | 2017-07-20 | 2017-09-15 | 揭阳市大立模具厂有限公司 | The imitative wooden hollow chair leg armchair mould of once injection moulding |
| CN107932840A (en) * | 2017-11-29 | 2018-04-20 | 汕头市柏达塑胶有限公司 | A kind of automotive seat adjusts outer casing mold |
| CN208946587U (en) * | 2018-05-04 | 2019-06-07 | 台州市黄岩雷丰模具有限公司 | A kind of injection mold of the European chair frame of integrated injection molding |
-
2018
- 2018-05-04 CN CN201810421171.XA patent/CN108501329B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6149240A (en) * | 1998-12-04 | 2000-11-21 | Pietrzak; Joseph J. | Shroud for the underside of a chair, and a molded seat frame for use therewith |
| JP2005335243A (en) * | 2004-05-27 | 2005-12-08 | Takano Co Ltd | Resin molding component for chair and method for producing resin molding component |
| US7806473B1 (en) * | 2005-11-21 | 2010-10-05 | Faiks Frederick S | Stackable chair and framework therefor |
| JP2011173268A (en) * | 2010-02-23 | 2011-09-08 | Sankei Kogyo Kk | Method of manufacturing chair member having mesh, and the chair member |
| CN202264364U (en) * | 2011-09-16 | 2012-06-06 | 浙江星威办公家具制造有限公司 | Combined angle lifting demolding mechanism for plastic chair molds |
| WO2013097522A1 (en) * | 2011-12-28 | 2013-07-04 | 深圳市银宝山新科技股份有限公司 | Method for manufacturing seat, and mould release apparatus for seat mould |
| CN102514150A (en) * | 2011-12-28 | 2012-06-27 | 深圳市银宝山新科技股份有限公司 | Method for making chairs and chair mold releasing device |
| CN102555167A (en) * | 2012-03-26 | 2012-07-11 | 揭阳市大立模具厂有限公司 | Inner core-pulling type mold |
| CN203973982U (en) * | 2014-07-10 | 2014-12-03 | 台州市黄岩汉威塑料模具有限公司 | The built-in ejection cylinder leakage preventing mechanism of plastic chair mold |
| CN105563765A (en) * | 2016-02-25 | 2016-05-11 | 浙江森川家具有限公司 | Injection mold suitable for complex plastic part and demolding method of injection mold |
| CN206465402U (en) * | 2016-12-20 | 2017-09-05 | 台州市博纳模具有限公司 | The T-shaped sliding block oblique top internal core-pulling mechanism of plastic chair mould |
| CN107160641A (en) * | 2017-07-20 | 2017-09-15 | 揭阳市大立模具厂有限公司 | The imitative wooden hollow chair leg armchair mould of once injection moulding |
| CN107932840A (en) * | 2017-11-29 | 2018-04-20 | 汕头市柏达塑胶有限公司 | A kind of automotive seat adjusts outer casing mold |
| CN208946587U (en) * | 2018-05-04 | 2019-06-07 | 台州市黄岩雷丰模具有限公司 | A kind of injection mold of the European chair frame of integrated injection molding |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108501329A (en) | 2018-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105034285A (en) | Inlaying type vertical injection mold structure achieving ejection and core pulling simultaneously | |
| CN103722697A (en) | Mobile phone protection shell and mould thereof | |
| CN213382762U (en) | Injection mold of injection molding part with side hole | |
| CN108501329B (en) | European style backrest chair frame formed by integral injection molding and injection mold thereof | |
| CN206230812U (en) | A kind of car that can exchange slide block fills main body processing mold | |
| CN107160641B (en) | One-time injection molding mould for wood-like hollow chair foot and armrest chair | |
| CN210061710U (en) | Mould that glue was advanced to side | |
| CN208946587U (en) | A kind of injection mold of the European chair frame of integrated injection molding | |
| CN208118339U (en) | Imitative rattan plastic chair unilateral side curved handrail footing core-pulling mechanism | |
| CN204749127U (en) | Be applied to side direction of european style instrument plug and divide mould mould | |
| CN209794442U (en) | Interior division type car bumper injection mold with elasticity ejecting canceling release mechanical system | |
| CN210190452U (en) | Plastic product mould with multi-surface groove | |
| CN217531696U (en) | Multi-dimensional curved surface ergonomic-simulated plastic chair injection mold | |
| CN219276495U (en) | High-frequency connector shell mould | |
| CN213618109U (en) | Back-off opening mold internal pulling structure of plastic chair injection mold | |
| CN216683213U (en) | Mould structure of dark bone of four sides loose core | |
| CN221067044U (en) | Slider die and slider | |
| CN208118341U (en) | Imitative rattan plastic chair dynamic model side floating quadrangle core-pulling mechanism | |
| CN214395172U (en) | Lower shell mold of European standard charger | |
| CN214111342U (en) | Commercial car stand plaque injection mold's guiding mechanism | |
| CN204977292U (en) | Mold processing of skeleton is led to electrocardio appearance | |
| CN217704452U (en) | Assembled children wardrobe panel shape structure forming die that preapres for an unfavorable turn of events | |
| CN210590320U (en) | Mold for manufacturing decorative lion eyes | |
| CN202192742U (en) | Simple small slide | |
| CN215882403U (en) | Forming die of automobile decorative panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No. 111, Minxing Road, Xinqian street, Huangyan, Taizhou, Zhejiang 318020 Applicant after: Zhejiang Leifeng mould Co.,Ltd. Address before: No. 111 Minxing Road, Xinqian Street, Huangyan, Taizhou City, Zhejiang Province, 318027 Applicant before: TAIZHOU HUANGYAN LEFN MOULD Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |