CN113400604B - Mould opening and closing tool and injection molding device for products with inverted buckles inside and outside side walls - Google Patents
Mould opening and closing tool and injection molding device for products with inverted buckles inside and outside side walls Download PDFInfo
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- CN113400604B CN113400604B CN202110736360.8A CN202110736360A CN113400604B CN 113400604 B CN113400604 B CN 113400604B CN 202110736360 A CN202110736360 A CN 202110736360A CN 113400604 B CN113400604 B CN 113400604B
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000009471 action Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/66—Mould opening, closing or clamping devices mechanical
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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
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of back-off mold design, in particular to a mold opening and closing tool and an injection molding device for products with inner and outer back-off side walls. The tool comprises: at least one outer side mold fixing seat, at least one inner side core pulling mechanism and a convex side mold plate. Wherein, the outer die fixing seat can move laterally and is arranged at the outer side of the product to arrange an outer die; the inner side core pulling mechanism comprises a connecting rod which can move along the lateral direction and extends into the inner side of the product from the lateral direction, and the connecting rod is connected with the inner side die; the convex side template is connected with the outer side mold fixing seat in a relative sliding manner, the convex side template is used for being arranged on the convex side of a product so as to be provided with at least one convex side mold, when the mold is opened and closed, the convex side template and the outer side mold fixing seat are mutually far away or close to each other, so that the outer side mold fixing seat and the connecting rod can simultaneously move laterally to drive the outer side mold and the inner side mold to open and close the mold. The scheme can solve the problems of complex structure, high manufacturing cost and maintenance cost and long product production period caused by multiple die opening actions in the prior art.
Description
Technical Field
The invention relates to the technical field of back-off mold design, in particular to a mold opening and closing tool and an injection molding device for products with inner and outer back-off side walls.
Background
The back-off refers to that a negative angle part which cannot be directly demoulded and needs to realize demoulding by means of a core-pulling mechanism exists on a product when the outer surface of the part is seen from the mould opening direction and the back surface of the part is seen from the opposite direction, and is called as back-off.
In the injection molding product, the inner side and the outer side of part of the product are in the mold opening direction, and the mold stripping is realized by means of a core pulling mechanism. For example, a product may be characterized as shown in FIGS. 1 and 2: in the figure, 1a is the appearance surface of the product and is convex in the Z direction to form an inner cavity, and 1b is the inner surface of the product, namely the inner cavity surface of the product. The positions of the Y-direction outer surfaces 1c and 1e of the product and the positions of the inner cavity inner walls 1d and 1f are reversed in the mold opening direction Z, and the product cannot be directly demolded and taken due to interference between the product and a rear mold core during demolding. The part has high quality requirement, and when the product is ejected out, the position and the posture of the part are required to be stable, and the conditions of sticking, overturning, dropping, hooking and the like can not occur.
In the prior art, for the condition that the mold opening direction Z is upward and the inner side and the outer side of the Y direction are both inverted, the mold on the convex side in the Z direction is usually disassembled during mold opening, then the mold on the outer side in the Y direction is disassembled, finally the mold on the other side in the Z direction is subjected to core pulling, and then the inverted mold on the inner side in the Y direction is taken out. The mode leads to complex structure, high manufacturing cost and maintenance cost, and the production cycle of products is long due to more die opening actions.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a mould opening and closing tool and an injection molding device for products with side walls inverted and buckled inwards and outwards, which can solve the problems of complex structure, high manufacturing cost and maintenance cost and long production period of the products caused by multiple mould opening actions in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
in one aspect, the present invention provides a mold opening and closing tool for a product with an inside and outside undercut on a sidewall, comprising:
the outer die fixing seat can move laterally and is used for being arranged on the outer side of a product to arrange at least one outer die;
at least one inner core-pulling mechanism, which comprises a connecting rod capable of moving laterally and extending into the inner side of the product from the lateral direction, wherein the connecting rod is used for connecting at least one inner side mould;
and the convex side template is in relative sliding connection with the outer side mold fixing seat and is used for being arranged on the convex side of a product so as to be provided with at least one convex side mold.
In some optional schemes, one end of the connecting rod is connected with the outer die fixing seat, and the other end of the connecting rod is connected with the inner die on the opposite side, when the outer die fixing seat moves laterally, the connecting rod can drive the inner die on the opposite side wall to move to complete die opening and closing.
In some optional schemes, the connecting rod is connected with the convex side template through a driving structure, and when the convex side template and the outer side mold fixing seat are far away from or close to each other, the driving structure drives the connecting rod to move laterally so as to drive the inner side mold to open and close the mold.
In some alternatives, the drive structure comprises:
the sliding seat is fixedly arranged and provided with a sliding chute;
the sliding block is connected with the connecting rod and is slidably arranged in the sliding groove, a wedge-shaped groove is arranged in the sliding block, and the wedge-shaped groove inclines outwards towards the protruding side;
and the wedge block is connected with the convex side template and matched with the wedge-shaped groove, and when the convex side template and the outer side template are far away from or close to each other, the wedge block can drive the sliding block to move laterally.
In some optional schemes, the outer die fixing seat is provided with a guide hole which inclines inwards towards the protruding side, the convex side die plate is provided with a guide post matched with the guide hole, and when the convex side die plate and the outer die fixing seat are mutually far away from or close to each other, the outer die fixing seat is driven to move laterally through the guide post.
In some optional schemes, the mould also comprises a concave side template which is used for being arranged on the concave side of the product so as to arrange a concave side mould and install an outer side mould fixing seat.
In some optional schemes, a fixing seat limiting mechanism is arranged on the concave side template and used for limiting the lateral moving position of the outer side template fixing seat.
On the other hand, the invention also provides an injection molding device for products with inverted buckles inside and outside the side wall, which comprises:
the outer side die fixing seats can move laterally and are arranged on the outer side of a product, and each outer side die fixing seat is provided with at least one outer side die;
at least one inner core-pulling mechanism comprising connecting rods which can move along the lateral direction and extend into the inner side of the product from the lateral direction, wherein each connecting rod is connected with at least one inner side mould;
and the convex side template is in relative sliding connection with the outer side die fixing seat, at least one convex side die is arranged on the convex side of the product on the convex side template, and when the die is opened and closed, the convex side template and the outer side die fixing seat are mutually far away or close to each other, so that the outer side die fixing seat and the connecting rod can simultaneously move laterally to drive the outer side die and the inner side die to open and close the die.
In some optional schemes, the mould further comprises a concave side template which is used for being arranged on the concave side of the product, a concave side mould is arranged on the concave side template, and the outer side mould fixing seat is arranged on the concave side template in a laterally movable mode.
In some alternatives, a cavity is provided in the female mold that allows the tie bar and the inner mold to move laterally.
Compared with the prior art, the invention has the advantages that: when the convex side template and the outer side die fixing seat are mutually far away or close to each other, the outer side die fixing seat and the connecting rod can move laterally to drive the outer side die and the inner side die to open and close the dies. When the mold is opened, the convex side mold plate or the outer side mold fixing seat is only required to be moved towards the convex side direction, so that the convex side mold plate and the outer side mold fixing seat are far away from or close to each other, the mold opening can be completed, other operations are not required, the product can be taken out after the mold opening is completed, the core pulling structure is not required to be taken out independently, namely, the mold and the core pulling structure on the concave side are not required to be taken out, and the product can be taken out. Core-pulling action is omitted, and the structure is simplified; the die opening and closing mode of the die can be simplified only by moving the convex side die plate towards the convex side direction or moving the outer side die fixing seat towards the concave side direction, the die opening and closing time is saved, the production period is shortened, and the operation efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic top view of an injection molded product according to an embodiment of the present invention;
FIG. 2 isbase:Sub>A schematic sectional view of the injection molded product of the embodiment of the present invention taken along the A-A plane;
FIG. 3 is a schematic structural diagram of a prior art solution in an embodiment of the present invention;
FIG. 4 is a schematic top view of a first mold opening and closing tool according to an embodiment of the present invention;
FIG. 5 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 4 in accordance with an embodiment of the present invention;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4 in accordance with an embodiment of the present invention;
FIG. 7 is a schematic view of a first mold opening/closing tool according to an embodiment of the present invention;
FIG. 8 is a schematic three-dimensional structure diagram of a first mold opening and closing tool according to an embodiment of the present disclosure;
FIG. 9 is a schematic top view of a second mold opening and closing tool according to an embodiment of the present invention;
FIG. 10 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 9 in accordance with an embodiment of the present invention;
FIG. 11 is a cross-sectional view taken along line B-B of FIG. 9 in accordance with an embodiment of the present invention;
FIG. 12 is a schematic diagram illustrating a second mold opening/closing tool according to an embodiment of the present invention;
fig. 13 is a schematic three-dimensional structure diagram of a second mold opening and closing tool according to an embodiment of the present invention.
In the figure: 100. injection molding a product; 101. a Y outward fixed seat; 102. a Y-direction outside mold; 103. core extraction; 104. a Y-direction inner side mold; 105. a Z-direction template; 106. a Z-direction upper side mold; 107. a Z-direction lower template; 108. a Z-direction lower side mold; 1091. a support plate; 1092. a Z-direction panel; 1093. a base station; 10931. a lower base plate; 10932. two groups of supporting legs; 10933. a top plate; 10934. a thimble; 10. producing a product; 1. an outer mold fixing seat; 2. an outer mold; 3. an inner core-pulling mechanism; 31. a connecting rod; 32. a drive structure; 321. a slide base; 322. a slider; 323. a wedge block; 324. a slide block limiting mechanism; 33. a lapping block; 4. an inner mold; 5. a convex side template; 51. a guide post; 52. a connecting bolt; 6. a convex side mold; 7. a concave side template; 71. a fixed seat limiting mechanism; 72. avoiding a void; 8. a concave side mold; 81. a through hole; 91. an upper panel; 92. a base.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
For such a product having the inside and outside inverted side walls, a prior art embodiment is first given, as shown in fig. 3, if an injection molded product 100 having the inside and outside inverted side walls as shown in fig. 2 is to be injection molded. It is necessary to provide Y-direction outer molds 102 on both sides of the product and Y-direction inner molds 104 on both left and right sides in the cavity, respectively, as well as Z-direction upper molds 106 on the upper side of the product and Z-direction lower molds 108 under the product.
When the die is closed, the Z-direction side die 106 needs to be fixed by the Z-direction panel 1092 and the Z-direction die plate 105; fixing the Y outward mold 102 through the Y outward fixing seat 101; for the Z-downward mold 108 to be propped against the Z-downward mold 107, the Y-inward mold 104 to be propped against the Y-inward mold 104 through the core-pulling block 103, the core-pulling block 103 passes through the clearance hole of the Z-downward mold 107 and is arranged on the supporting plate 1091, the Z-downward mold 107 is arranged on the supporting plate 1091 on the base 1093, the side of the core-pulling block 103 is provided with an inclined surface to be propped against the Y-inward mold 104 to fix the Y-inward mold, the base 1093 comprises a lower bottom plate 10931, two groups of supporting feet 10932, a top plate 10933 and ejector pins 10934, the Z-downward mold 108 and the supporting plate 1091 are provided with ejector pin holes for the ejector pins 10934 to pass through, two groups of supporting feet 10932 are respectively arranged at two sides of a lower bottom plate 10931, ejector pins 10934 are arranged on a top plate 10933 and penetrate through ejector pin holes, a top plate 10933 is arranged above a lower bottom plate 10931 and is positioned in two groups of supporting feet 10932 and can move up and down on the inner sides of two groups of supporting feet 10932, and a top hole for ejecting the top plate 10933 is arranged on a lower bottom plate 10931.
When the mold is opened, the Z-direction panel 1092 and the Z-direction upper mold plate 105 are required to be separated from the product, and then the Z-direction upper mold 106 is demoulded, wherein the Z-direction panel 1092 is used for being connected with an injection molding machine; after the Y outward side fixing seat 101 is moved, the Y outward side mold 102 can be demoulded; for the Z-down mold 108 and the Y-inner mold 104, after the core-pulling block 103 provided on the support plate 1091 on the base 1093 is pulled out, the inclined surface of the core-pulling block 103 is released from the Y-inner mold 104, and after the Y-inner mold 104 is demolded, the inner and outer undercuts on the side wall of the product are completely released, the top plate 10933 is pushed, the ejector pin 10934 pushes the product, so that the product is demolded from the Z-down mold 108, and the product can be taken out. Therefore, the opening and closing of the die of the product are performed in a large number, and the production period of the product is long.
As shown in fig. 4, 5, 9 and 10, the present invention provides a mold opening and closing tool for a product with inside and outside inverted sidewalls, comprising: at least one outer side mold fixing seat 1, at least one inner side core-pulling mechanism 3 and a convex side mold plate 5.
Wherein, the outer die fixing seat 1 can move laterally and is used for being arranged at the outer side of the product 10 to arrange at least one outer die 2; the inner core-pulling mechanism 3 comprises a connecting rod 31 which can move along the lateral direction and extends into the inner side of the product 10 from the lateral direction, and the connecting rod 31 is used for connecting at least one inner side mould 4; protruding side template 5 and the relative sliding connection of outside mould fixing base 1, protruding side template 5 is used for establishing in the protruding side of product 10 in order to set up at least one protruding side mould 6, and when the mould that opens and shuts, keep away from each other or be close to between protruding side template 5 and the outside mould fixing base 1, can make outside mould fixing base 1 and connecting rod 31 lateral shifting simultaneously, drive outside mould 2 and the mould that opens and shuts of inboard mould 4.
When the mould tool is opened and closed by using the product 10 with the inner and outer inverted buckles on the side wall, at least one outer mould 2 is arranged on the outer mould fixing seat 1 capable of moving laterally; a connecting rod 31, movable in a lateral direction and projecting laterally inside the product 10, connects at least one inner mould 4; and make protruding side template 5 and outside mould fixing base 1 relative sliding connection, when the mould that opens and shuts, keep away from each other or be close to between protruding side template and the outside mould fixing base, can make outside mould fixing base 1 and connecting rod 31 lateral shifting, drive outside mould 2 and inside mould 4 mould that opens and shuts. When the mold is opened, the convex side mold plate or the outer side mold fixing seat is only required to be moved towards the convex side direction, so that the convex side mold plate and the outer side mold fixing seat are far away from or close to each other, the mold opening can be completed, other operations are not required, the product 10 can be taken out after the mold opening is completed, the core pulling structure is not required to be opened, namely, the mold and the core pulling structure on the concave side do not need to be moved, and the product 10 can be taken out. The core pulling action is omitted, and the structure is simplified; the mould opening can be completed only by making the convex side template and the outer side mould fixing seat far away from or close to each other, so that the mould opening and closing mode of the mould is simplified, the mould opening and closing time is saved, the production period is shortened, and the operation efficiency is improved.
Specifically, when the mold is opened, the male mold plate 5 moves toward the male side, or the outer mold holder 1 moves toward the female side, which can drive the outer mold holder 1 to move toward the outer side and the connecting rod 31 to move toward the mold opening direction. During mold closing, the convex side mold plate 5 moves towards the concave side direction, or the outer side mold fixing seat 1 moves towards the convex side direction, so that the outer side mold fixing seat 1 is driven to move inwards, and the connecting rod 31 moves towards the mold closing direction.
Wherein, the convex side template 5 is a template for arranging the side mold on the convex side of the product 10; the outer side die fixing seat 1 is a template for arranging and installing a side wall outer side die; the inner side core-pulling mechanism 3 is a template for arranging and installing the side wall inner side mold. The convex side is the convex side, the tool aims at the design scheme of the mold opening and closing tool with a cavity product 10 and inverted buckles on the inner side and the outer side of the side wall, and the convex side is the closed end side of the cavity of the product 10.
In this embodiment, the product 10 has undercuts on both the lateral inner and outer sidewalls, so that lateral demolding is required on both the inner and outer sidewalls of the product. In this example, the outer side mold fixing seat 1 and the inner side core pulling mechanism 3 both include two, and are respectively located on two sides of the side wall. In other embodiments, if there is an undercut on only one side, the outside die holder 1 and/or the inside core-pulling mechanism 3 may be disposed on only one side, that is, the outside die holder 1 and the inside core-pulling mechanism 3 are disposed on the side wall where the undercut exists. In addition, in this example, the whole tool can simultaneously perform injection molding on two identical products 10, each outer mold fixing seat 1 is provided with two outer molds 2, the connecting rod 31 of each inner core pulling mechanism 3 is connected with two inner molds 4, the convex side mold 6 is provided with injection molding grooves for the two products 10, of course, the two convex side molds 6 can be connected with the convex side mold plate 5, the same effect can be achieved, and thus, the two products 10 can be simultaneously injected. In other embodiments, the number of the outer molds 2 on each outer mold fixing base 1 and the number of the inner molds 4 connected to the connecting rod 31 of the inner core pulling mechanism 3 can be adjusted according to the design requirement of the simultaneously injection molded product and the complexity of the tool design.
As shown in fig. 5-8, in some alternative embodiments, one end of the connecting rod 31 is connected to the outer mold fixing base 1, and the other end is connected to the inner mold 4 on the opposite side, so that when the outer mold fixing base 1 moves laterally, the connecting rod 31 can drive the inner mold 4 on the opposite side wall to move to complete the mold opening and closing.
In this embodiment, when the outer mold fixing base 1 moves outward, the outer mold 2 connected to the outer mold fixing base is removed from the mold, and the outer mold fixing base 1 moves outward, and since both ends of the connecting rod 31 are connected to the outer mold fixing base 1 and the inner mold 4, the inner mold 4 can be driven to move laterally. And because the inside and outside back-off demoulding directions of the side wall at the same side are different, the connecting rod 31 connected with the outside mould fixing seat 1 of the left side wall is connected with the inside mould 4 of the other side wall at the other end, so that the inside mould 4 of the side wall can be demoulded when the outside mould fixing seat 1 moves laterally. In this example, the tie bars 31 are connected to the two inner molds 4, so that the two inner molds 4 are connected to the tie bars 31 by the connecting blocks 33, and the two inner molds 4 and the tie bars 31 move simultaneously.
When the inner walls of the two sides of the cavity are both provided with the back-off, the outer die fixing seats 1 on the left side and the right side are both required to be provided with a connecting rod 31 to be connected with the inner die 4 on the opposite side, at this time, the connecting rod 31 can be arranged up and down in the Z direction, the thickness of one of the lapping blocks 33 is increased, a sliding hole is formed in the thicker lapping block 33, the end part of the connecting rod 31 which is not connected with the thicker lapping block 33 is enabled to penetrate through the sliding hole of the thicker lapping block 33 to be connected with the other lapping block 33.
As shown in fig. 10 to 13, in some alternative embodiments, the connecting rod 31 is connected to the male mold plate 5 through a driving structure 32, and when the male mold plate 5 and the outer mold holder 1 move away from or close to each other, the driving structure 32 drives the connecting rod 31 to move laterally to drive the inner mold 4 to open and close.
In this embodiment, the convex side mold plate 5 is connected with the driving structure 32, and when the convex side mold plate 5 and the outer side mold fixing base 1 are away from or close to each other, the driving structure 32 can be driven to move laterally, so as to drive the connecting rod 31 connected with the driving structure 32 to move laterally, and thus, the driving of the inner side mold 4 to open and close the mold can be realized. The mold opening and closing process of the inner mold 4 can be simplified, the time is saved, and the efficiency is improved.
As shown in fig. 13, in some alternative embodiments, the driving structure 32 includes: a slide 321, a slider 322, and a wedge 323.
Wherein, the sliding seat 321 is fixedly arranged and provided with a sliding chute; the sliding block 322 is connected with the connecting rod 31 and is slidably arranged in the sliding groove, a wedge-shaped groove is arranged in the sliding block 322, and the wedge-shaped groove inclines outwards towards the convex side; and the wedge block 323 is connected with the convex side template 5 and matched with the wedge-shaped groove, and can drive the slide block 322 to move laterally when the convex side template 5 and the outer side template fixing seat 1 are far away from or close to each other.
In this embodiment, the slide block 322 and the outer mold fixing base 1 are relatively fixed in the concave-convex side direction, that is, move in the concave-convex side direction simultaneously, when the convex mold plate 5 and the outer mold fixing base 1 are away from each other, the convex mold plate 5 is moved upward in the Z direction in fig. 1, or the outer mold fixing base 1 is moved in the concave side direction, at this time, since the wedge 323 which inclines outward and inclines toward the convex side is arranged in the slide block 322, the wedge 323 which is matched with the wedge and connected with the convex mold plate 5 is also away from the slide block 322 in the concave-convex side direction, at this time, the slide block 322 can be driven to move inward, at this time, the other end of the connecting rod 31 is connected with the inner mold 4 which is arranged on the same side as the driving structure 32, and the inner mold 4 can be demolded. When the mold is closed, the male mold plate 5 is moved downward in the direction Z of fig. 1, or the outer mold fixing base 1 is moved in the direction of the female side, and the wedge 323 connected to the male mold plate 5 is also moved close to the slide block 322 in the direction of the male and female sides, so that the slide block 322 is driven to move outward, and after the mold is dropped to the position, the mold closing of the inner mold 4 is completed.
In this example, the sliding base 321 is connected to the outer mold fixing base 1, the sliding block 322 is slidably disposed on the sliding base 321, so that the sliding block 322 and the outer mold fixing base 1 are relatively fixed in the concave-convex side direction, a sliding groove for the sliding block 322 to slide and a sliding hole for the sliding rod 31 to slide are disposed in the outer mold fixing base 1, and the sliding rod 31 passes through the sliding groove and then passes through the product from the lower part, and is connected to the inner mold 4 through the overlapping block 33.
Of course, in other embodiments, the wedge-shaped groove is inclined inward toward the convex side, and then the moving direction of the slide block 322 is reversed, and the other end of the connecting rod 31 is connected with the inner mold 4 arranged opposite to the driving structure 32, so as to realize the demolding of the inner mold 4.
In addition, the driving structure 32 further includes a slider limiting mechanism 324 fixedly disposed on the slider 322 for limiting the sliding position of the slider 322 to prevent the slider from falling off.
Referring to fig. 5 and 10 again, in some alternative embodiments, the outer die holder 1 is provided with a guide hole inclined inward toward the protruding side, the convex die plate 5 is provided with a guide post 51 matched with the guide hole, and when the convex die plate 5 and the outer die holder 1 are away from each other, the guide post 51 drives the outer die holder 1 to move laterally.
In this embodiment, when opening the mold, because the outside die fixing base 1 is provided with the guide hole that inclines inwards towards the convex side, the convex side die plate 5 is provided with the guide post 51 that matches with the guide hole, and the convex side die plate 5 moves towards the convex side or the outside die fixing base 1 towards the concave side, and the guide post 51 in the guide hole will drive the outside die fixing base 1 to move towards the outside, thereby makes the outside die 2 that sets up on the outside die fixing base 1 open the mold. When the mold is closed, the convex side mold plate 5 moves towards the concave side or the outer side mold fixing seat 1 moves towards the convex side, the guide column 51 in the guide hole drives the outer side mold fixing seat 1 to move inwards, and therefore the outer side mold 2 arranged on the outer side mold fixing seat 1 is closed.
In this example, in order to improve the stability and driving efficiency with which the guide posts 51 in the guide holes drive the outer die holder 1 to move outward, two guide posts 51 are provided at intervals for each of the male die plates 5, so that the relative positions of the male die plates 5 and the outer die holder 1 can be stably maintained. The guide post 51 is provided with a connecting bolt 52 on an upper end side wall thereof, and the guide post 51 and the male die plate 5 are connected by the connecting bolt 52 provided on the side wall thereof, so that the guide post 51 moves simultaneously with opening and closing of the male die plate 5.
Establish the outside mould 2 that two intervals set up on every outside mould fixing base 1, outside mould 2 is the round platform shape, transversely sets up, can also regard as the support of convex side mould 6, and outside mould 2 is as the boundary department of convex side mould 6 and concave side mould 8 below, and the shape that is the round platform shape can conveniently be demolded.
Because there may be the clearance between guide post 51 and the guiding hole, can only play the effect of direction, in order to target in place after the compound die of outside mould 2 that sets up on outside mould fixing base 1, be equipped with the inside inclined plane of mutual matching towards the slope of bulge side in the outside below of convex side template 5 and outside mould fixing base 1's outside top, convex side mould 6 compound die is accomplished the back, can just in time extrude on the inclined plane of outside mould fixing base 1, makes outside mould 2 compound die target in place.
In some alternative embodiments, the tool further comprises a female side form 7 fixedly arranged for being arranged on a female side of a product 10 for arranging a female side mould 8 and for mounting the outer side mould holder 1.
In this embodiment, the concave side mold plate 7 is provided with a chute for installing the outer side mold fixing seat 1, so that the outer side mold fixing seat 1 can move laterally in the chute, and the outer side mold fixing seat 1 and the concave side mold plate 7 can move together in the concave-convex direction, the concave side is the cavity side of the product 10, the Z-direction lower side in fig. 1 does not need to be taken down when the mold is opened and closed, the product 10 can be taken out after the upper side, the outer side and the inner side are all demolded, and the operation efficiency can be improved.
In some optional embodiments, the concave side formwork 7 is provided with a fixing seat limiting mechanism 71 for limiting the lateral movement position of the outer side formwork fixing seat 1.
In this embodiment, the fixing seat limiting mechanism 71 is provided to prevent the outer die fixing seat 1 from slipping off. Similarly, in the embodiment in which the connecting rod 31 is connected to the male die plate 5 by the driving mechanism 32, the slider 321 and the slider stopper 324 are also fixedly provided on the female die plate 7 and move together with the female die plate 7 in the concave-convex direction.
In addition, the concave side template 7 is also provided with a clearance hole 72, when the convex side template 6 is matched, the convex side template 5 moves downwards, the guide post 51 penetrates through the guide Kong Dichi to be arranged in the clearance hole 72, when the lateral displacement of the outer side template fixing seat 1 is large, the longer guide post 51 is designed, and when the mould is matched, the guide post 51 is positioned in the clearance hole 72 to avoid the mutual interference with the concave side template 7.
The tool also includes an upper panel 91 connected to the male side form 5 for connection to an injection molding machine. The die casting die further comprises a base 92 connected with the concave side die plate 7, and the base 92 is fixedly connected with the concave side die plate 7 through bolts. When the convex side template 5 and the outer side mold fixing seat 1 are far away from each other, the convex side template 5 can be moved through the injection molding machine, and the concave side template 7 can be driven to move through the movable base 92, so that the outer side mold fixing seat 1 is driven to move. After the molds of the male mold 6, the outer mold 2 and the inner mold 4 are opened and the molds are opened, the ejector pins arranged on the base 92 and penetrating through the female mold plate 7 and the female mold 8 can be used for ejecting the mold and keeping the mold 8, so that the mold can be taken out conveniently. The base 92 in this embodiment is identical to the base 1093 of fig. 3 in the prior art in structure and function, and will not be further described here.
As shown in fig. 4 to 8, in another aspect, the present invention further provides an injection molding apparatus for a product with inside and outside inverted sidewalls, comprising: at least one outer die fixing seat 1 which can move laterally and is used for being arranged on the outer side of a product 10, wherein each outer die fixing seat 1 is at least provided with one outer die 2; at least one inner core-pulling mechanism 3, which comprises connecting rods 31 capable of extending into the inner side of the product 10 along the mold opening and closing direction, wherein each connecting rod 31 is connected with at least one inner mold 4; protruding side template 5, it and outside mould fixing base 1 relative sliding connection, establish on protruding side template 5 and set up a protruding side mould 6 at least at the protruding side of product 10, when keeping away from each other between protruding side template 5 and the outside mould fixing base 1, can make outside mould fixing base 1 and connecting rod 31 lateral shifting simultaneously, drive outside mould 2 and the mould of inboard 4 division compound dies.
When the injection molding device for the product with the side wall inverted inside and outside is used, at least one outer mold 2 is arranged on the outer mold fixing seat 1 capable of moving laterally; a connecting rod 31, movable in a lateral direction and projecting laterally inside the product 10, connects at least one inner mould 4; and make protruding side template 5 and outside mould fixing base 1 relative sliding connection, when protruding side template 5 drove protruding side mould 6 and open and shut the mould, can make outside mould fixing base 1 and connecting rod 31 remove, drive outside mould 2 and inside mould 4 and open and shut the mould. When the mold is opened, the mold opening of the convex side mold 6, the outer side mold 2 and the inner side mold 4 can be completed only by keeping the convex side mold plate 5 and the outer side mold fixing seat 1 away from or close to each other, other operations are not needed, the product 10 can be taken out after the mold opening is completed, the core pulling structure does not need to be taken out independently, namely, the mold and the core pulling on the concave side do not need to be moved, and the product 10 can be taken out. The die opening and closing mode of the die is simplified, the die opening and closing time is saved, the production period is shortened, and the operation efficiency is improved.
In some optional embodiments, the device further comprises a concave side template 7 for fixing the concave side of the product 10, a concave side mold 8 is arranged on the concave side template 7, and the outer side mold fixing seat 1 is arranged on the concave side template 7 in a laterally movable mode.
In this embodiment, the concave side mold plate 7 is provided with a chute for installing the outer side mold fixing seat 1, so that the outer side mold fixing seat 1 can move laterally in the chute, the concave side is the cavity side of the product 10, and the Z-direction lower side in fig. 1 does not need to be taken down when the mold is opened and closed, and the product 10 can be taken out after the upper side, the outer side and the inner side are all demolded, thereby improving the operation efficiency.
In some alternative embodiments, the female mould 8 is provided with a chamber for moving the tie bar 31 and the inner mould 4.
In this embodiment, since the inner mold 4 and the connecting rod 31 need to be moved within the cavity of the product 10, a cavity for moving the connecting rod 31 and the inner mold 4 needs to be designed in the concave side mold 8. In addition, a through hole 81 for allowing the lap joint block 33 to pass through is also designed, when the lap joint block 33 is assembled, after the concave side mold 8 is installed in place, the connecting rod 31 passes through the sliding hole to the cavity, the inner side mold 4 is placed in the cavity of the concave side mold 8 to connect the inner side mold 4 and the lap joint block 33, and finally the lap joint block 33 passes through the through hole 81 of the concave side mold 8 to the cavity to connect the connecting rod 31 and the lap joint block 33.
As shown in fig. 7 and 12, in summary, when the injection molding apparatus using the product with the inside and outside inverted sidewalls is used, the mold opening operation is: the convex side template 5 is moved towards the convex side direction or the base 92 is moved downwards to drive the concave side template 7 and the outer side mold fixing seat 1 to move towards the concave side direction, so that the convex side template 5 and the outer side mold fixing seat 1 are separated from each other, and the convex side mold 6 is driven to open the mold; the guide posts 51 in the guide holes move upwards along with the convex side template 5, and at the moment, the guide posts 51 drive the outer side mold fixing seat 1 to move outwards, so that the outer side mold 2 arranged on the outer side mold fixing seat 1 is opened; the connecting rod 31 with two ends respectively connected with the outer side die fixing seat 1 and the inner side die 4 drives the inner side die 4 on the opposite side wall to move inwards, so that the inner side die 4 is demoulded, or the wedge block 323 matched with the wedge groove and connected with the convex side die plate 5 moves towards the convex side direction, the sliding block 322 is driven to move inwards, the inner side die 4 connected with the other end of the connecting rod 31 and arranged at the same side with the driving structure 32 is driven to move, and the inner side die 4 can be demoulded; after the male side mold 6, the inner side mold 4 and the outer side mold 2 are all demolded, the product 10 can be taken out without opening the bottom mold and dismounting the support of the bottom, namely, the mold and the support of the female side do not need to be moved, and the product 10 can be taken out. A core-pulling structure is omitted, so that the structure is simplified; the die opening can be completed only by moving the convex side die plate 5 upwards, so that the die opening and closing mode of the die is simplified, the die opening and closing time is saved, the production period is shortened, and the operation efficiency is improved.
In this example, the guide hole is inclined outwardly 17 ° to the convex side, i.e. at an angle of 17 ° to the vertical. The convex side die 6 can be driven to open the die by making the convex side die plate 5 and the outer side die fixing seat 1 mutually far away to 130 mm; the guide posts 51 in the guide holes move along with the convex side template 5, and the guide posts 51 can drive the outer side die fixing seat 1 to move 40mm outwards, so that the outer side die 2 arranged on the outer side die fixing seat 1 is opened; the both ends respectively with the connecting rod 31 that outside mould fixing base 1 and inboard mould 4 are connected, drive inboard mould 4 on the offside lateral wall and move 15mm to the inboard to make inboard mould 4 drawing of patterns, perhaps with wedge groove matching and with the voussoir 323 that protruding side template 5 is connected move together, drive slider 322 is inside to be moved, drive the inboard mould 4 that the other end of connecting rod 31 is connected and set up with drive structure 32 homonymy and move 15mm, can be with the drawing of patterns of this inboard mould 4.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides an inside and outside back-off product of lateral wall mould opening and closing tool which characterized in that includes:
at least one outer die holder (1) which is laterally movable and is intended to be arranged on the outside of the product (10) for the purpose of arranging at least one outer die (2);
-at least one inner core-pulling mechanism (3) comprising a connecting rod (31) movable laterally and projecting laterally inside said product (10), said connecting rod (31) being intended to connect at least one inner mould (4);
the convex side template (5) is connected with the outer side mold fixing seat (1) in a relatively sliding mode, the convex side template (5) is used for being arranged on the convex side of a product (10) so as to be provided with at least one convex side mold (6), when the mold is opened and closed, the convex side template (5) and the outer side mold fixing seat (1) are far away from or close to each other, the outer side mold fixing seat (1) and the connecting rod (31) can move laterally at the same time, and the outer side mold (2) and the inner side mold (4) are driven to be opened and closed;
one end of the connecting rod (31) is connected with the outer side die fixing seat (1), the other end of the connecting rod is connected with the inner side die (4) on the opposite side, and when the outer side die fixing seat (1) moves laterally, the connecting rod (31) can drive the inner side die (4) on the opposite side wall to move to complete die opening and closing;
or the connecting rod (31) is connected with the convex side template (5) through a driving structure (32), and when the convex side template (5) and the outer side die fixing seat (1) are far away from or close to each other, the driving structure (32) drives the connecting rod (31) to move laterally so as to drive the inner side die (4) to open and close the die; the drive structure (32) comprises:
a slide base (321) which is fixedly arranged and is provided with a slide groove;
the sliding block (322) is connected with the connecting rod (31) and is arranged in the sliding groove in a sliding mode, a wedge-shaped groove is formed in the sliding block (322), and the wedge-shaped groove inclines outwards towards the protruding side;
the wedge block (323) is connected with the convex side template (5) and matched with the wedge-shaped groove, and when the convex side template (5) and the outer side template fixing seat (1) are far away from or close to each other, the slide block (322) can be driven to move laterally by the wedge block (323).
2. The mold opening and closing tool for the products with the inverted buckles inside and outside the side walls as claimed in claim 1, wherein the outer mold fixing seat (1) is provided with a guide hole inclining inwards towards the protruding side, the convex side mold plate (5) is provided with a guide post (51) matched with the guide hole, and when the convex side mold plate (5) and the outer mold fixing seat (1) are far away from or close to each other, the outer mold fixing seat (1) is driven to move laterally through the guide post (51).
3. The mold opening and closing tool for products with inverted inside and outside sidewalls as claimed in claim 1, further comprising a concave side mold plate (7) for being provided on the concave side of the product (10) to provide a concave side mold (8) and for mounting the outside mold holder (1).
4. The mold opening and closing tool for products with inverted inside and outside lateral walls as claimed in claim 3, wherein the concave side mold plate (7) is provided with a fixed seat limiting mechanism (71) for limiting the lateral moving position of the outer side mold fixed seat (1).
5. The utility model provides an inside and outside back-off product injection molding device of lateral wall which characterized in that includes:
the outer side die fixing seats (1) can move laterally and are arranged on the outer side of a product (10), and each outer side die fixing seat (1) is at least provided with one outer side die (2);
-at least one inner core-pulling mechanism (3) comprising laterally movable tie-rods (31) laterally projecting inside said product (10), each of said tie-rods (31) being associated with at least one inner die (4);
the convex side template (5) is connected with the outer side mold fixing seat (1) in a relatively sliding mode, at least one convex side mold (6) is arranged on the convex side of a product (10) on the convex side template (5), when the mold is opened and closed, the convex side template (5) and the outer side mold fixing seat (1) are far away from or close to each other, the outer side mold fixing seat (1) and the connecting rod (31) can move laterally at the same time, and the outer side mold (2) and the inner side mold (4) are driven to be opened and closed;
one end of the connecting rod (31) is connected with the outer side die fixing seat (1), the other end of the connecting rod is connected with the inner side die (4) on the opposite side, and when the outer side die fixing seat (1) moves laterally, the connecting rod (31) can drive the inner side die (4) on the opposite side wall to move to complete die opening and closing;
or the connecting rod (31) is connected with the convex side template (5) through a driving structure (32), and when the convex side template (5) and the outer side die fixing seat (1) are far away from or close to each other, the driving structure (32) drives the connecting rod (31) to move laterally so as to drive the inner side die (4) to open and close the die; the drive structure (32) comprises:
a slide base (321) which is fixedly arranged and is provided with a slide groove;
the sliding block (322) is connected with the connecting rod (31) and is arranged in the sliding groove in a sliding mode, a wedge-shaped groove is formed in the sliding block (322), and the wedge-shaped groove inclines outwards towards the protruding side;
the wedge block (323) is connected with the convex side template (5) and matched with the wedge-shaped groove, and when the convex side template (5) and the outer side template fixing seat (1) are far away from or close to each other, the slide block (322) can be driven to move laterally by the wedge block (323).
6. An injection molding apparatus for products with inside and outside inverted sidewalls as claimed in claim 5, further comprising a concave side mold plate (7) for being disposed on the concave side of the product (10), wherein a concave side mold (8) is disposed on the concave side mold plate (7), and the outside mold fixing base (1) is laterally movably disposed on the concave side mold plate (7).
7. An injection molding apparatus for products with inside and outside inverted sidewalls as set forth in claim 6, wherein said concave side mold (8) is provided with a chamber for allowing said connecting rod (31) and said inside mold (4) to move laterally.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110736360.8A CN113400604B (en) | 2021-06-30 | 2021-06-30 | Mould opening and closing tool and injection molding device for products with inverted buckles inside and outside side walls |
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| CN202110736360.8A CN113400604B (en) | 2021-06-30 | 2021-06-30 | Mould opening and closing tool and injection molding device for products with inverted buckles inside and outside side walls |
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| CN113400604B true CN113400604B (en) | 2022-12-27 |
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| CN116100767A (en) * | 2022-11-30 | 2023-05-12 | 苏州多维精密机电有限公司 | Mould core pulling mechanism |
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