CN113843988B - Large garbage can rotary cover die convenient for realizing demolding and demolding method - Google Patents
Large garbage can rotary cover die convenient for realizing demolding and demolding method Download PDFInfo
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- CN113843988B CN113843988B CN202111116232.XA CN202111116232A CN113843988B CN 113843988 B CN113843988 B CN 113843988B CN 202111116232 A CN202111116232 A CN 202111116232A CN 113843988 B CN113843988 B CN 113843988B
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000001746 injection moulding Methods 0.000 claims abstract description 21
- 238000007493 shaping process Methods 0.000 claims description 49
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 36
- 230000007246 mechanism Effects 0.000 claims description 24
- 229910052742 iron Inorganic materials 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 18
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- 238000002347 injection Methods 0.000 claims 1
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- 239000004033 plastic Substances 0.000 description 10
- 229920003023 plastic Polymers 0.000 description 10
- 238000000465 moulding Methods 0.000 description 7
- 230000006872 improvement Effects 0.000 description 3
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Classifications
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- 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
- B29C45/44—Removing or ejecting moulded articles for undercut articles
-
- 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
- B29C45/2618—Moulds having screw-threaded mould walls
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- 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
- B29L2001/00—Articles provided with screw threads
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a large-sized garbage can rotary cover die convenient for demoulding and a demoulding method, and relates to the technical field of demoulding of garbage can rotary cover dies. According to the invention, one end of the positioning ejector rods, which is close to the forming die holder, is utilized to form the positioning surface which is right opposite to the forming cavity opening, so that the injection molding operation is carried out on the rotating cover of the garbage can, during the demolding, the positioning ejector rods are independently pulled reversely to be separated from the surface of an injection molding piece, but the surface deformation of the injection molding piece cannot be caused, the plurality of positioning ejector rods can be respectively pulled reversely and asynchronously, the effective demolding is effectively ensured, and the demolding efficiency is improved.
Description
Technical Field
The invention relates to the technical field of demoulding of a rotary cover mould of a garbage can, in particular to a rotary cover mould of a large garbage can and a demoulding method, which are convenient for realizing demoulding.
Background
Garbage bin, also known as dustbin or dustbin, refer to the container of putting rubbish, the garbage bin adopts plastic mold to mould plastics and forms, under the general condition, in order to avoid the garbage bin in the fermentation production thorn nose, can install rotatory bung additional usually on the garbage bin, conveniently put in rubbish, can also the separation peculiar smell give off, among the prior art, in order to avoid the garbage bin to use the back fracture for a long time, the phenomenon that leads to the life of garbage bin to be shorter, can produce the rotatory bung that moulds plastics and have the strengthening rib, but the drawing of patterns is loaded down with trivial details when the strengthening rib is more, unable quick one-time drawing of patterns, need the workman to pick the rotatory bung that will mould plastics and the mould separation, and the production cost is increased, so a rotatory lid mould and the drawing of patterns method of large-scale garbage bin convenient to realize the drawing of patterns have been designed here, so that the above-mentioned problem can be solved.
Disclosure of Invention
The invention aims to provide a rotary cover die of a large garbage can and a demoulding method, which are convenient for realizing demoulding and solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a rotatory lid mould of large-scale garbage bin convenient to realize drawing of patterns, includes base, shaping die holder and positioning mechanism, and the upper end left side of base is fixed with the backup plate, and shaping die holder fixed mounting has seted up the shaping chamber at the backup plate lateral wall, fixes the shaping die holder in the upper end of base with the backup plate, and the shaping chamber of shaping die holder uses as the rotatory bung shaping place of garbage bin.
Positioning mechanism includes rectangle cavity guide frame and a plurality of location ejector pin, the bottom both sides of rectangle cavity guide frame are fixed with the supporting shoe with base up end fixed connection, a plurality of location ejector pin is matrix structure and slides and paste together and can slide along the inside level of rectangle cavity guide frame, the one end that a plurality of location ejector pin is close to the shaping die holder forms the locating surface just right with the shaping chamber opening, it changes the tradition mode that adopts single orientation module to be located matrix structure distribution with a plurality of location ejector pin, but adjacent two location ejector pin relative sliding, the one end that is close to the shaping chamber with a plurality of location ejector pin keeps flushing the state, the shaping intracavity is arranged in to the blank of will treating moulding plastics, along the inside level sliding to the shaping intracavity of rectangle cavity guide frame, a plurality of location ejector pin can quick shaping after supporting the blank in the shaping intracavity.
The one end that the shaping die holder was kept away from to the location ejector pin is fixed with the connecting rod, the pointed end of connecting rod is fixed with the jack-up piece, be equipped with the power unit that is used for providing jack-up power for the jack-up piece on the base, in order to ensure the effective jack-up shaping operation of location ejector pin, utilize power unit to provide power jack-up piece, as power transmission medium through the connecting rod, can carry out shaping operation to the jack-up of shaping intracavity with the location ejector pin, avoid appearing the location ejector pin along the inside reverse slip of rectangle cavity guide frame, lead to producing the clearance between location ejector pin pointed end and the blank, lead to the unable operation of moulding plastics of accomplishing of injection molding.
Power unit includes the kicking block, two handstand T type sliders and first servo motor, two handstand T type spouts have been seted up on the base, and two handstand T type spouts are inside to be communicate each other, handstand T type slider slip joint is in handstand T type spout, and two handstand T type sliders are both sides position around the bottom of kicking block fixed mounting respectively, the kicking block utilizes handstand T type slider along handstand T type spout inside slip for the kicking block can be at the upper end horizontal slip adjusting position of base.
The kicking block is laminated with a plurality of jacking piece, and when the kicking block slided to one side near the jacking piece, can laminate in the most advanced position of a plurality of jacking piece, along with the continuous horizontal slip of kicking block is fed, can promote a plurality of location ejector pin in step and slide to the one side that is close to the molding cavity along rectangle cavity guide frame is inside to can support blank at the molding cavity and carry out the shaping operation.
Fixedly connected with connecting plate between two handstand T type sliders, first servo motor fixes at the base right-hand member face, first servo motor's power shaft is connected with first threaded rod, first threaded rod rotates to extend to handstand T type spout inside and rotates with the connecting plate and peg graft, utilize first servo motor to provide power and drive first threaded rod and rotate, because handstand T type slider only can be along the inside horizontal slip of handstand T type spout, consequently first threaded rod rotates the connecting plate that can drive between two handstand T type sliders and adjusts along first threaded rod axial, make two handstand T type sliders follow connecting plate synchronous sliding and adjust like this, can make the kicking block can be at the up end automatically regulated of base like this.
In a further embodiment, four corner positions at the bottom end of the inverted T-shaped sliding block are rotatably embedded with first rolling balls, the first rolling balls are in rolling fit with the bottom end face inside the inverted T-shaped sliding groove, and the sliding friction force of the inverted T-shaped sliding block can be reduced by rolling the first rolling balls on the bottom end face inside the inverted T-shaped sliding groove, so that the resistance of the top block is smaller and smoother when the top block is horizontally adjusted along the upper end face of the base.
In further embodiment, the outer wall of connecting rod slip cup joints an iron cover and two slip caps and the iron cover is located between two slip caps, the outer wall cover machine of connecting rod has two can be with two slip caps to the spring of one side jack-up that is close to each other, and two springs respectively with location ejector pin and jack-up piece fixed connection, along the outer wall of connecting rod to the slip cap quick pull slip iron cover of one side of keeping away from the shaping die holder, make the iron cover can strike the slip cap with the biggest speed, make the location ejector pin have along the inside reverse slip trend of rectangle cavity guide frame, make and produce the clearance between location ejector pin and the injection molding, so that carry out drawing of patterns operation.
In a further embodiment, annular electromagnetic iron blocks are embedded in opposite side walls of the two sliding sleeves, the annular electromagnetic iron blocks of the two sliding sleeves on the single connecting rod are alternately communicated with a circuit to generate magnetic force for adsorbing the iron sleeves, and the iron sleeve at the upper end can slide along the connecting rod in a reciprocating manner so as to frequently impact the corresponding sliding sleeve and frequently impact the sliding sleeve, thereby being beneficial to force application for demoulding.
In a further embodiment, a plurality of hinge grooves are formed in the side wall, away from the opening, of the forming cavity of the forming die holder, a shifting block is hinged inside each hinge groove, a torsion spring is arranged at the hinge position, the side wall of the shifting block can be flushed with the notch of each hinge groove in a natural state by utilizing the torsional potential energy of the torsion spring, the side wall, away from the opening, of the forming cavity is kept on a complete plane, and a pit in the surface of an injection molding part is avoided when the forming cavity is formed.
In further embodiment, be equipped with the jack-up mechanism that is used for reciprocal jack-up shifting block on the shaping die holder, jack-up mechanism provides power and frequently stirs the shifting block and overturn in articulated inslot portion, helps keeping away from the rotatory bung cap top of garbage bin that the molding plastics was accomplished and the lateral wall of one side of shaping chamber keeping away from the opening, helps the drawing of patterns operation.
The jacking mechanism comprises a plurality of pull rods, the pull rods extend into corresponding hinge grooves after sliding through the side walls of the forming die holders, a plurality of wedge blocks used for overturning the shifting blocks around the hinge positions are fixed on the side walls of the pull rods, the pull rods are pulled along the hinge grooves, the corresponding shifting blocks are jacked up by the wedge blocks, the shifting blocks can be overturned out of the hinge grooves around the rotation positions, injection molding pieces attached to the inner walls of the forming cavities can be jacked away from the inner walls of the forming cavities, and demolding operation is facilitated.
In a further embodiment, the jacking mechanism comprises a second servo motor, the second servo motor is fixed on the upper end face of the forming die holder, a power shaft of the second servo motor is connected with a second threaded rod, the outer wall of the second threaded rod is rotatably sleeved with a pressing plate, a guide rod is vertically fixed at the upper end of the forming die holder and penetrates through the pressing plate in a sliding mode, the second servo motor is used for providing power to drive the second threaded rod to rotate, and the pressing plate is in sliding insertion connection with the guide rod, so that the pressing plate can only perform reciprocating adjustment operation along the axial direction of the second threaded rod.
The pointed end of clamp plate extends to behind the shaping die holder limit side vertical fixation and has the depression bar, be fixed with the stiffener between the one end in hinge groove is kept away from to two adjacent pull rods, the pull rod lateral wall of intermediate position is fixed with the carrier block that is located under the depression bar, the upper end of carrier block is equipped with the inclined plane that inclines to the one side below that is close to the shaping die holder, when the depression bar pushes down, can with the relative slip between the inclined plane of carrier block, because the depression bar only can slide from top to bottom, consequently, the carrier block is for compensating the depression bar difference in height that slides from top to bottom, the carrier block can drive the horizontal pull of pull rod, the pull rod is along hinge inslot pull promptly, so that can stir the shifting block voluntarily and overturn at hinge inslot, help drawing of patterns operation.
In a further embodiment, a spherical seat is fixed at the bottom end of the pressure lever, a second rolling ball capable of freely rolling along the inclined plane is embedded in the bottom end of the spherical seat in a rotating mode, and the second rolling ball can roll along the inclined plane of the bearing block, so that sliding friction force generated when the pressure lever is pressed down and slides relative to the inclined plane can be reduced, and the pressure lever can be pushed to drive the pull rod to slide.
Preferably, the demolding method based on the rotating cover mold of the large garbage can convenient for demolding comprises the following steps:
a1, when the top block slides to one side close to the top block, the top block can be attached to the tip positions of a plurality of top blocks, and along with the continuous horizontal sliding feeding of the top block, a plurality of positioning ejector rods can be synchronously pushed to slide to one side close to the forming cavity along the inside of the rectangular hollow guide frame, one ends of the plurality of positioning ejector rods close to the forming cavity are kept in a flush state, a blank to be injection-molded is placed in the forming cavity and horizontally slides to the forming cavity along the inside of the rectangular hollow guide frame, and the blank can be quickly formed after being abutted to the forming cavity by the plurality of positioning ejector rods;
a2, when demoulding, when the ejector block slides to one side far away from the ejector blocks, the ejector block can be far away from a plurality of ejector blocks, and the ejector block continuously horizontally and reversely slides, so that a gap with a certain length is reserved between the ejector block and the ejector block, and the ejector rod can reversely slide along the inside of the rectangular hollow guide frame to position the ejector rod, so that the ejector rod can be separated from the surface of an injection molding piece, and demoulding operation is facilitated;
a3, reverse pulling location ejector pin alone can break away from with the injection molding surface, nevertheless can not cause injection molding surface deformation, can be respectively asynchronous reverse pulling a plurality of location ejector pin, changes the mode of the once only drawing of patterns of tradition, changes the mode of traditional large tracts of land positioning die pressfitting into the locate mode that a plurality of location ejector pin is constituteed, and pulling single location ejector pin labour saving and time saving need not to adopt the manual work to prize, effectively guarantees effectively going on of drawing of patterns, improves drawing of patterns efficiency.
Compared with the prior art, the invention has the beneficial effects that:
the invention utilizes one end of a plurality of positioning ejector rods close to the forming die holder to form a positioning surface opposite to the opening of the forming cavity, and synchronously feeds the positioning ejector rods close to the forming cavity for performing injection molding operation on the garbage bin rotary cover.
Drawings
FIG. 1 is an exploded view of the main structure of the present invention;
FIG. 2 is a sectional view of the forming die holder of the present invention;
FIG. 3 is a partial schematic view of the positioning mechanism of the present invention;
FIG. 4 is a partial cross-sectional view of a base of the present invention;
fig. 5 is a cross-sectional view of the inverted T-shaped slider of the present invention.
In the figure: 1. a base; 11. an inverted T-shaped chute; 12. a backup plate; 2. forming a die holder; 21. shifting blocks; 3. a jacking mechanism; 31. a second servo motor; 32. a second threaded rod; 33. pressing a plate; 34. a guide rod; 35. a pressure lever; 36. a second ball; 37. a pull rod; 38. a bearing block; 39. a reinforcing bar; 310. a wedge block; 4. a positioning mechanism; 41. a rectangular hollow guide frame; 42. a supporting block; 43. positioning a mandril; 44. a connecting rod; 45. jacking the block; 46. a sliding sleeve; 47. an annular electromagnet block; 48. an iron sleeve; 49. a spring; 5. a power mechanism; 51. a top block; 52. an inverted T-shaped slider; 53. a first threaded rod; 54. a first servo motor; 55. a first ball.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1 and 4, the present embodiment provides a large trash can rotary cover mold convenient for demolding and a demolding method, including a base 1, a forming mold base 2 and a positioning mechanism 4, wherein a backup plate 12 is fixed on the left side of the upper end of the base 1, the forming mold base 2 is fixedly installed on the side wall of the backup plate 12, a forming cavity is formed in the side wall of the forming mold base 2, the forming mold base 2 is fixed on the upper end of the base 1 by using the backup plate 12, and the forming cavity of the forming mold base 2 is used as a forming place of a rotary can cover of a trash can.
The positioning mechanism 4 comprises a rectangular hollow guide frame 41 and a plurality of positioning push rods 43, wherein supporting blocks 42 fixedly connected with the upper end face of the base 1 are fixed on two sides of the bottom end of the rectangular hollow guide frame 41, and the rectangular hollow guide frame 41 is fixed at the upper end of the base 1 through the supporting blocks 42.
A plurality of location ejector pin 43 is the matrix structure and slides the laminating and be in the same place and can be along the inside horizontal slip of rectangle cavity guide frame 41, a plurality of location ejector pin 43 is close to the one end formation of shaping die holder 2 and becomes the locating surface just right with the shaping chamber opening, it changes the tradition mode that adopts single orientation module to be the matrix structure distribution with a plurality of location ejector pin 43, but two adjacent location ejector pin 43 relative slip, the one end that is close to the shaping chamber with a plurality of location ejector pin 43 keeps the state of flushing, the shaping intracavity is arranged in to the blank that will treat to mould plastics, along the inside horizontal slip in the shaping intracavity of rectangle cavity guide frame 41, a plurality of location ejector pin 43 supports the blank can quick shaping after the shaping intracavity.
One end that shaping die holder 2 was kept away from to location ejector pin 43 is fixed with connecting rod 44, the pointed end of connecting rod 44 is fixed with jack-up piece 45, be equipped with the power unit 5 that is used for providing jack-up power for jack-up piece 45 on the base 1, in order to ensure the effective jack-up shaping operation of location ejector pin, utilize power unit 5 to provide power jack-up piece 45, as power transmission medium through connecting rod 44, can carry out the shaping operation with location ejector pin 43 to the jack-up of shaping intracavity, avoid appearing location ejector pin 43 along the inside reverse slip of rectangle cavity guide frame 41, lead to producing the clearance between location ejector pin 43 pointed end and the blank, lead to the injection molding can't accomplish the operation of moulding plastics.
The power mechanism 5 comprises a top block 51, two inverted T-shaped sliders 52 and a first servo motor 54, wherein the two inverted T-shaped chutes 11 are formed in the base 1, the interiors of the two inverted T-shaped chutes 11 are communicated with each other, the inverted T-shaped sliders 52 are slidably clamped in the inverted T-shaped chutes 11, the two inverted T-shaped sliders 52 are fixedly mounted at the front side and the rear side of the bottom end of the top block 51 respectively, and the top block 51 slides along the interiors of the inverted T-shaped chutes 11 through the inverted T-shaped sliders 52, so that the position of the top block 51 can be adjusted in a horizontal sliding mode at the upper end of the base 1.
Fixedly connected with connecting plate between two inverted T type sliders 52, first servo motor 54 is fixed at base 1 right-hand member face, first servo motor 54's power shaft is connected with first threaded rod 53, first threaded rod 53 rotates and extends to inverted T type spout 11 inside and the connecting plate rotates and pegs graft, utilize first servo motor 54 to provide power and drive first threaded rod 53 and rotate, because inverted T type slider 52 only can be along the inside horizontal slip of inverted T type spout 11, consequently first threaded rod 53 rotates and to drive the connecting plate between two inverted T type sliders 52 and adjust along first threaded rod 53 axial, make two inverted T type sliders 52 follow connecting plate synchronous sliding and adjust like this, can make the kicking block 51 can be at the up end automatically regulated of base 1 like this.
The kicking block 51 is laminated with a plurality of jacking block 45, and when the kicking block 51 slided to one side that is close to jacking block 45, can laminate in the most advanced position of a plurality of jacking block 45, along with the continuous horizontal slip of kicking block 51 is given, can promote a plurality of location ejector pin 43 in step and slide to the one side that is close to the shaping chamber along rectangle cavity guide frame 41 is inside to can support blank piece in the shaping intracavity and carry out the shaping operation.
During the drawing of patterns, when sliding kicking block 51 to the one side of keeping away from kicking block 45, can keep away from a plurality of kicking block 45, along with kicking block 51 constantly levels reverse slip for keep the clearance of certain length between kicking block 51 and the kicking block 45, can follow the inside reverse slip location ejector pin 43 of rectangle cavity guide frame 41 like this, can break away from with the injection molding surface like this, help drawing of patterns to operate.
Reverse pulling location ejector pin 43 alone can break away from with the injection molding surface, nevertheless can not cause injection molding surface deformation, can be respectively asynchronous reverse pulling a plurality of location ejector pin 43, changes the mode of the disposable drawing of patterns of tradition, changes the mode of traditional large tracts of land positioning die pressfitting into the locate mode that a plurality of location ejector pin 43 constitutes, and the single location ejector pin 43 labour saving and time saving of pulling need not to adopt the manual work to prize, effectively guarantees effectively going on of drawing of patterns, improves drawing of patterns efficiency.
Example two
Referring to fig. 1 and fig. 3, a further improvement is made on the basis of embodiment 1:
an iron sleeve 48 and two sliding sleeves 46 are sleeved on the outer wall of the connecting rod 44 in a sliding mode, the iron sleeve 48 is located between the two sliding sleeves 46, two springs 49 capable of jacking the two sliding sleeves 46 to one side close to each other are arranged on the outer wall of the connecting rod 44, and the two springs 49 are fixedly connected with the positioning carrier rods 43 and the jacking blocks 45, respectively, so that the two springs 49 can be arranged at the axial two-end positions of the connecting rod 44, respectively, so that the gap between the two sliding sleeves 46 is maximized, when demoulding is required, the sliding iron sleeve 48 is rapidly drawn along the outer wall of the connecting rod 44 towards the sliding sleeve 46 at the side far away from the forming die holder 2, so that the iron bush 48 can strike the sliding bush 46 at the maximum speed, so that the positioning ejector rod 43 has a tendency to slide along the inside of the rectangular hollow guide frame 41 in the opposite direction, so that a gap is created between the positioning ejector rod 43 and the injection-molded part, to facilitate the demolding operation.
Constantly repeat above-mentioned step, slide along the connecting rod 44 outer wall and strike corresponding sliding sleeve 46 with iron cover 48 on the connecting rod 44 that all the other location ejector pins 43 are connected to break away from the injection molding with a plurality of location ejector pin 43 asynchronous, change the mode of traditional disposable drawing of patterns, can avoid disposable drawing of patterns operation to lead to can't drawing of patterns and stretched deformation after the adhesion between injection molding surface and the location ejector pin 43, cause the injection molding to become unable normal use of waste product, lead to the defective rate to improve.
In order to realize the automatic demoulding operation, annular electromagnet blocks 47 are embedded in opposite side walls of the two sliding sleeves 46, the annular electromagnet blocks 47 of the two sliding sleeves 46 on the single connecting rod 44 are alternately communicated with a circuit to generate magnetic force for absorbing the iron sleeves 48, and the iron sleeve 48 at the upper end can slide back and forth along the connecting rod 44 so as to frequently impact the corresponding sliding sleeve 46 and frequently impact the sliding sleeve 46, thereby being beneficial to applying force to carry out the demoulding operation.
EXAMPLE III
Referring to fig. 1-2, a further improvement is made on the basis of embodiment 2:
the shaping chamber of shaping die holder 2 keeps away from open-ended one side lateral wall and has seted up a plurality of hinge groove, and the hinge inslot portion articulates there is shifting block 21, and articulated department is equipped with the torsional spring, utilizes the torsional potential energy of torsional spring, can flush the notch in shifting block 21 lateral wall and hinge groove under natural state, guarantees that the shaping chamber keeps away from open-ended one side lateral wall and keeps complete plane, causes the injection molding surface to have the pit when avoiding the shaping chamber shaping.
Be equipped with the jack-up mechanism 3 that is used for reciprocal jack-up shifting block 21 on the shaping die holder 2, jack-up mechanism 3 provides power and frequently stirs shifting block 21 and overturn at articulated inslot portion, helps keeping away from the shaping chamber and keeping away from open-ended one side lateral wall with the rotatory bung lid top of the garbage bin of accomplishing of moulding plastics, helps the drawing of patterns operation.
The jacking mechanism 3 comprises a plurality of pull rods 37, the pull rods 37 extend into corresponding hinge grooves after penetrating through the side wall of the forming die holder 2 in a sliding manner, a plurality of wedge blocks 310 used for overturning the shifting blocks 21 around the hinge parts are fixed on the side wall of each pull rod 37, the pull rods 37 are pulled along the hinge grooves, and the corresponding shifting blocks 21 are jacked up by the aid of the wedge blocks 310, so that the shifting blocks 21 can overturn out of the hinge grooves around the rotation parts, injection-molded parts attached to the inner wall of the forming cavity are jacked away from the inner wall of the forming cavity, and demolding operation is facilitated.
Jacking mechanism 3 includes second servo motor 31, second servo motor 31 fixes the up end at shaping die holder 2, the power shaft of second servo motor 31 is connected with second threaded rod 32, the outer wall of second threaded rod 32 rotates and has cup jointed clamp plate 33, the upper end vertical fixation of shaping die holder 2 has guide bar 34, guide bar 34 slides and runs through clamp plate 33, utilize second servo motor 31 to provide power and drive second threaded rod 32 and rotate, clamp plate 33 and guide bar 34 slip grafting, so clamp plate 33 can only be along the reciprocal regulation operation of second threaded rod 32 axial direction.
The most advanced of clamp plate 33 extends to 2 avris of shaping die holder after the vertical fixation have depression bar 35, and reciprocal clamp plate 33 of regulation can drive depression bar 35 reciprocal height-adjusting from top to bottom, and two adjacent pull rods 37 are kept away from and are fixed with stiffener 39 between the one end in hinge groove, make a plurality of pull rod 37 can link through stiffener 39.
The lateral wall of the pull rod 37 at the middle position is fixed with a bearing block 38 positioned right below the press rod 35, the upper end of the bearing block 38 is provided with an inclined surface inclined towards the lower part of one side close to the forming die holder 2, when the press rod 35 presses down, the inclined surface can slide relative to the inclined surface of the bearing block 38, because the press rod 35 can only slide up and down, the bearing block 38 can drive the pull rod 37 to horizontally pull in order to compensate the height difference of the up-and-down sliding of the press rod 35, namely, the pull rod 37 pulls along the hinge groove, so that the shifting block 21 can be automatically pulled to turn over in the hinge groove, and the demolding operation is facilitated.
Example four
Please refer to fig. 1, fig. 4 and fig. 5, a further improvement is made on the basis of embodiment 3:
when the inverted T-shaped slider 52 slides along the inside of the inverted T-shaped chute 11, a large friction force is easily generated, and in order to reduce the sliding friction force, the first rolling balls 55 are rotatably embedded at four corner positions at the bottom end of the inverted T-shaped slider 52, the first rolling balls 55 are in rolling contact with the bottom end surface inside the inverted T-shaped chute 11, and when the inverted T-shaped slider 52 slides along the inside of the inverted T-shaped chute 11, the first rolling balls 55 roll on the bottom end surface inside the inverted T-shaped chute 11, so that the sliding friction force of the inverted T-shaped slider 52 can be reduced, and the resistance of the top block 51 is small and smooth when the top end surface of the base 1 is horizontally adjusted.
When the press rod 35 slides along the inclined plane of the bearing block 38, a large sliding friction force is easily generated, so that the power of the horizontal sliding of the pull rod 37 is small, and the shifting operation of the shifting block 21 is difficult, therefore, a spherical seat is fixed at the bottom end of the press rod 35, a second rolling ball 36 which can freely roll along the inclined plane is embedded at the bottom end of the spherical seat in a rotating manner, and the second rolling ball 36 can roll along the inclined plane of the bearing block 38, so that the sliding friction force generated when the press rod 35 slides down and slides relative to the inclined plane can be reduced, and the bearing block 38 can be shifted to drive the pull rod 37 to slide.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a rotatory lid mould of large-scale garbage bin convenient to realize drawing of patterns, includes base (1), shaping die holder (2) and positioning mechanism (4), its characterized in that: a backup plate (12) is fixed on the left side of the upper end of the base (1), the forming die holder (2) is fixedly installed on the side wall of the backup plate (12), and a forming cavity is formed in the side wall of the forming die holder (2);
the positioning mechanism (4) comprises a rectangular hollow guide frame (41) and a plurality of positioning ejector rods (43), supporting blocks (42) fixedly connected with the upper end face of the base (1) are fixed on two sides of the bottom end of the rectangular hollow guide frame (41), the positioning ejector rods (43) are in a matrix structure and are slidably attached together and can horizontally slide along the inside of the rectangular hollow guide frame (41), and one ends of the positioning ejector rods (43) close to the forming die holder (2) form positioning faces opposite to the forming cavity opening;
a connecting rod (44) is fixed at one end, away from the forming die holder (2), of the positioning ejector rod (43), a jacking block (45) is fixed at the tip end of the connecting rod (44), and a power mechanism (5) used for providing jacking power for the jacking block (45) is arranged on the base (1);
the power mechanism (5) comprises a top block (51), two inverted T-shaped sliding blocks (52) and a first servo motor (54), the base (1) is provided with two inverted T-shaped sliding grooves (11), the insides of the two inverted T-shaped chutes (11) are mutually communicated, the inverted T-shaped slide block (52) is clamped in the inverted T-shaped chute (11) in a sliding way, and two inverted T-shaped sliders (52) are respectively and fixedly arranged at the front side and the rear side of the bottom end of the top block (51), the jacking blocks (51) are attached to the jacking blocks (45), a connecting plate is fixedly connected between the two inverted T-shaped sliding blocks (52), the first servo motor (54) is fixed on the right end face of the base (1), a power shaft of the first servo motor (54) is connected with a first threaded rod (53), the first threaded rod (53) rotatably extends into the inverted T-shaped chute (11) and is rotatably inserted into the connecting plate;
an iron sleeve (48) and two sliding sleeves (46) are sleeved on the outer wall of the connecting rod (44) in a sliding mode, the iron sleeve (48) is located between the two sliding sleeves (46), two springs (49) capable of jacking the two sliding sleeves (46) to one side close to each other are sleeved on the outer wall of the connecting rod (44), and the two springs (49) are fixedly connected with the positioning ejector rod (43) and the jacking block (45) respectively;
annular electromagnet blocks (47) are embedded in opposite side walls of the two sliding sleeves (46).
2. The mold for the rotary cover of the large trash can convenient for realizing demolding according to claim 1, wherein: four corner positions at the bottom end of the inverted T-shaped sliding block (52) are all rotated and embedded with first rolling balls (55), and the first rolling balls (55) are in rolling fit with the bottom end face inside the inverted T-shaped sliding groove (11).
3. The rotating cover die of the large garbage can convenient for realizing demoulding according to claim 1, wherein: a plurality of hinge grooves are formed in the side wall, away from the opening, of the forming cavity of the forming die holder (2), a shifting block (21) is hinged to the inside of each hinge groove, and a torsional spring is arranged at the hinged position.
4. The mold for the rotary cover of the large trash can convenient for realizing demolding according to claim 1, wherein: the forming die holder (2) is provided with a jacking mechanism (3) for jacking a shifting block (21) in a reciprocating manner;
the jacking mechanism (3) comprises a plurality of pull rods (37), the pull rods (37) penetrate through the side wall of the forming die holder (2) in a sliding mode and then extend into corresponding hinge grooves, and a plurality of wedge blocks (310) used for turning the shifting block (21) around the hinge positions are fixed on the side wall of each pull rod (37).
5. The rotating cover die of the large garbage can convenient for realizing demoulding as claimed in claim 4, wherein: the jacking mechanism (3) comprises a second servo motor (31), the second servo motor (31) is fixed on the upper end surface of the forming die holder (2), a power shaft of the second servo motor (31) is connected with a second threaded rod (32), the outer wall of the second threaded rod (32) is rotatably sleeved with a pressing plate (33), the upper end of the forming die holder (2) is vertically fixed with a guide rod (34), the guide rod (34) penetrates through the pressing plate (33) in a sliding manner, the tip end of the pressing plate (33) extends to the side of the forming die holder (2) and then is vertically fixed with a pressing rod (35), a reinforcing rod (39) is fixed between the ends of two adjacent pull rods (37) far away from the hinge groove, a bearing block (38) located right below the pressing rod (35) is fixed on the side wall of the pull rod (37) in the middle position, the upper end of the bearing block (38) is provided with an inclined surface which is inclined towards the lower part of one side close to the forming die holder (2).
6. The rotating cover die of the large garbage can convenient for realizing demoulding as claimed in claim 5, wherein: a spherical seat is fixed at the bottom end of the pressure lever (35), and a second rolling ball (36) which can freely roll along the inclined plane is embedded in the spherical seat in a rotating way at the bottom end.
7. A demoulding method of a rotary cover mould of a large garbage can convenient for realizing demoulding, which adopts the rotary cover mould of the large garbage can convenient for realizing demoulding in claim 1, and is characterized by comprising the following steps:
a1, when the jacking block (51) slides to one side close to the jacking block (45), the jacking block can be attached to the tip positions of a plurality of jacking blocks (45), along with the continuous horizontal sliding feeding of the jacking block (51), a plurality of positioning ejector rods (43) can be synchronously pushed to slide to one side close to a forming cavity along the inside of the rectangular hollow guide frame (41), one ends of the plurality of positioning ejector rods (43) close to the forming cavity are kept in a flush state, a blank to be injected is placed in the forming cavity and horizontally slides to the inside of the forming cavity along the inside of the rectangular hollow guide frame (41), and the blank can be quickly formed after being abutted to the forming cavity by the plurality of positioning ejector rods (43);
a2, when demoulding, when the jacking blocks (51) slide to one side far away from the jacking blocks (45), the jacking blocks (45) can be far away, and with the continuous horizontal reverse sliding of the jacking blocks (51), a gap with a certain length is reserved between the jacking blocks (51) and the jacking blocks (45), so that the jacking rods (43) can be reversely slid and positioned along the interior of the rectangular hollow guide frame (41), and can be separated from the surface of an injection molded part, thereby being beneficial to demoulding;
a3, reverse pulling location ejector pin (43) alone, can break away from with the injection molding surface, nevertheless can not cause injection molding surface deformation, can be respectively asynchronous reverse pulling a plurality of location ejector pin (43), change the mode of the once only drawing of patterns of tradition, change the mode of traditional large tracts of land positioning die pressfitting into the locate mode that a plurality of location ejector pin (43) are constituteed, single location ejector pin (43) labour saving and time saving of pulling, need not to adopt the manual work to prize, effectively guarantee effectively going on of drawing of patterns, improve drawing of patterns efficiency.
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| CN202111116232.XA CN113843988B (en) | 2021-09-23 | 2021-09-23 | Large garbage can rotary cover die convenient for realizing demolding and demolding method |
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| CN202111116232.XA CN113843988B (en) | 2021-09-23 | 2021-09-23 | Large garbage can rotary cover die convenient for realizing demolding and demolding method |
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| JP2003089132A (en) * | 2001-09-19 | 2003-03-25 | Nagano Fujitsu Component Kk | Insert molding method, connector, method for manufacturing the same, and mold |
| JP4766942B2 (en) * | 2005-07-20 | 2011-09-07 | 株式会社フジシールインターナショナル | Mold |
| CN109702968B (en) * | 2018-12-28 | 2024-01-30 | 深圳市凯中精密技术股份有限公司 | Inner slide mechanism, connector demolding device and demolding method thereof |
| CN214000352U (en) * | 2020-10-20 | 2021-08-20 | 台州黄岩联达塑业有限公司 | Domestic plastic garbage bin injection mold with preceding formula tunnel slider mechanism of inserting |
| CN214000356U (en) * | 2020-10-21 | 2021-08-20 | 台州黄岩联达塑业有限公司 | Domestic categorised plastic garbage bin injection mold with supplementary demoulding structure of pneumatic valve |
| CN213533624U (en) * | 2020-11-06 | 2021-06-25 | 张家港海沃德精密机械有限公司 | Rapid demoulding mechanism of flange cover sliding block |
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