CN107932848B - Secondary demolding mechanism mold for concave product with dovetail groove and using method of secondary demolding mechanism mold - Google Patents

Secondary demolding mechanism mold for concave product with dovetail groove and using method of secondary demolding mechanism mold Download PDF

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Publication number
CN107932848B
CN107932848B CN201711148452.4A CN201711148452A CN107932848B CN 107932848 B CN107932848 B CN 107932848B CN 201711148452 A CN201711148452 A CN 201711148452A CN 107932848 B CN107932848 B CN 107932848B
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pin
spring
spring pin
point
block
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CN107932848A (en
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不公告发明人
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Foshan Xide Technology Co ltd
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Foshan Xide Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/4005Ejector constructions; Ejector operating mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/33Moulds having transversely, e.g. radially, movable mould parts
    • B29C45/332Mountings or guides therefor; Drives therefor

Abstract

The invention provides a secondary demoulding mechanism mould for a concave product with a dovetail groove and a using method thereof, and the mould comprises a mould demoulding mechanism component and a mould structure basic component, and is characterized in that the secondary demoulding mechanism for the concave product with the dovetail groove comprises a slider wedge block, a wedge block fastening screw, a bent pin fastening screw, a spring pin, a spring pin pushing block, a spring pin positioning block screw, a spring positioning block, a bent pin, a sliding block body and a spring pushing block fastening screw; the slide block wedging block, the wedging block fastening screw, the bent pin fastening screw, the spring pin pushing block and the spring pushing block fastening screw are arranged on the fixed die part of the die; the sliding block body is arranged on the movable mould part of the mould; the spring positioning block is installed on the sliding block body through a spring pin positioning block screw, the spring is sleeved on the spring pin, and the spring pin through circular hole is installed on the head of the sliding block body and can axially move along the installation hole under external force extrusion.

Description

Secondary demolding mechanism mold for concave product with dovetail groove and using method of secondary demolding mechanism mold
The application has the following application numbers: 2015100951478, the name of invention creation: a take dovetail indent goods secondary demoulding mechanism and mould, application date are: divisional application of the invention patent application on 03/04/2015.
Technical Field
The invention relates to a secondary demolding mechanism for a concave product with a dovetail groove and a mold of the secondary demolding mechanism.
Background
Generally, when plastic products are designed, an important design factor must consider the demoulding convenience of products during moulding, but for plastic products in special use occasions, for example, the design of a chute with a dovetail groove shape needs to adopt a special demoulding design to finish the smooth demoulding of the plastic products on a mould.
Disclosure of Invention
The invention aims to provide a secondary demoulding mechanism for a concave product with a dovetail groove and a mould thereof, and the secondary demoulding mechanism is reasonable in design, compact in structure, stable in work, safe, reliable and convenient to use.
In order to solve the above-mentioned existing technical problem, the invention adopts the following scheme: the utility model provides a take dovetail indent goods secondary demoulding mechanism and mould thereof, includes mould demoulding mechanism subassembly: the main sliding block wedging block, the wedging block fastening screw, the bent pin fastening screw, the spring pin, the spring pin pushing block, the spring pin positioning block screw, the spring positioning block, the bent pin, the sliding block body and the spring pushing block fastening screw.
Basic components of the mold structure: the mould comprises a positioning ring, an upper mould seat plate, a cavity fixing plate, a cavity, a mould core, a movable mould fixing plate, mould feet, a reset rod, an ejector pin cover plate, an ejector pin push plate and a lower mould seat plate.
Preferably, the secondary demolding mechanism for the dovetail groove concave product comprises a slider wedging block, a wedging block fastening screw, a bent pin fastening screw, a spring pin, a spring pin pushing block, a spring pin positioning block screw, a spring positioning block, a bent pin, a slider body and a spring pushing block fastening screw; the slide block wedging block, the wedging block fastening screw, the bent pin fastening screw, the spring pin pushing block and the spring pushing block fastening screw) are arranged on the fixed die part of the die; the sliding block body is arranged on the movable mould part of the mould; the spring positioning block is installed on the sliding block body through a spring pin positioning block screw, the spring is sleeved on the spring pin, and the spring pin through circular hole is installed on the head of the sliding block body and can axially move along the installation hole under external force extrusion.
Preferably, the secondary demolding mechanism for the dovetail groove concave product is arranged in the mold structure; the basic assembly of the die structure comprises a positioning ring, an upper die base plate, a cavity fixing plate, a cavity, a core, a movable die fixing plate, a die pin, a reset rod, an ejector pin cover plate, an ejector pin push plate and a lower die base plate.
The secondary demoulding mechanism and the mould for the concave product with the dovetail groove, which are provided by the invention by adopting the technical scheme, have the advantages of safe and reliable effect, reasonable design, compact structure, stable operation, safety, reliability and convenience in use.
Drawings
FIG. 1 is a schematic structural view of a special demolding part of a product of the invention;
FIG. 2 is a schematic view of the structural assembly of the secondary demolding mechanism for a concave product with a dovetail groove of the present invention;
FIG. 3 is a schematic view of the mold assembly of the demolding mechanism of the present invention;
FIG. 4 is a schematic view of the spring pin core pulling of the present invention;
FIG. 5 is a schematic view of the bend pin mold opening and core pulling of the present invention;
FIG. 6 is a schematic view of the pin closing and mold resetting of the present invention.
Detailed Description
As shown in fig. 1-6, a secondary demolding mechanism for a concave product with a dovetail groove and a mold thereof, the mold demolding mechanism component comprises a main slider wedging block 1, a wedging block fastening screw 2, a bent pin fastening screw 3, a spring pin 5, a spring 6, a spring pin pushing block 7, a spring pin positioning block screw 8, a spring positioning block 9, a bent pin 10, a slider body 11 and a spring pushing block fastening screw 12.
The basic components of the die structure comprise a positioning ring 13, an upper die base plate 14, a cavity fixing plate 15, a cavity 16, a core 17, a movable die fixing plate 18, a die pin 19, a reset rod 20, an ejector pin cover plate 21, an ejector pin push plate 22 and a lower die base plate 23.
The secondary demolding mechanism for the dovetail groove concave product comprises a slider wedging block 1, a wedging block fastening screw 2, a bent pin fastening screw 3, a spring pin 5, a spring 6, a spring pin pushing block 7, a spring pin positioning block screw 8, a spring positioning block 9, a bent pin 10, a sliding block body 11 and a spring pushing block fastening screw 12; the slide block wedging block 1, the wedging block fastening screw 2, the bent pin fastening screw 3, the spring pin pushing block 7 and the spring pushing block fastening screw 12 are arranged on the fixed die part of the die; the sliding block body 11 is arranged on a movable mould part of the mould; the spring positioning block 9 is installed on the sliding block body 11 through a spring pin positioning block screw 8, the spring 6 is sleeved on the spring pin 5, and the spring pin 5 is installed on the head of the sliding block body 11 through a circular hole and can axially move along the installation hole under the external force extrusion.
The secondary demolding mechanism for the dovetail groove concave product is arranged in the mold structure; the basic components of the die structure comprise a positioning ring 13, an upper die base plate 14, a cavity fixing plate 15, a cavity 16, a core 17, a movable die fixing plate 18, a die pin 19, a reset rod 20, an ejector pin cover plate 21, an ejector pin push plate 22 and a lower die base plate 23.
In actual operation, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 6, the control operation process can be divided into three steps:
1. concave demoulding of mould opening product
As shown in FIG. 1, the injection molded product has A, B, C three concave parts, wherein A is a dovetail groove-shaped concave part, B is a major arc spherical concave part, and C is a vertical concave part; the structure of the demoulding and core-pulling mechanism is shown in figure 2; the mold structure is shown in fig. 3. And after the mold cavity is closed, injection molding and mold filling are carried out, and after cooling, the product is ready for demolding and demolding. In the closed state of the mold, the spring pin 5 is pressed tightly by the spring pin pusher 7, the spring 6 is compressed, the spring pin 5 constitutes the article molding part B, and the slider body 11 constitutes the article molding part a. When the mold is opened in the initial state, the point g1 on the spring pin 5 and the point g2 on the spring pin pushing block 7 are superposed at the same position, and the distance between the points g2 and g3 is H, as shown in FIG. 4; after the mold is opened, the spring pin 5 moves upwards along with the fixed mold due to the fact that the spring pin pushing block 7 is installed on the fixed mold part of the mold, after a point g3 on the spring pin pushing block 7 passes a point g1 on the spring pin 5, the spring pin 5 is pushed by the spring 6 to move gradually rightwards until a point g4 on the spring pin pushing block 7 passes a point g1, and then core pulling at a position B in the drawing of fig. 1 is achieved. Meanwhile, as shown in fig. 5, in the initial state of opening the mold, s1 point on the bending pin 10 and n1 point on the slider body 11 are coincident with each other at the same position, as shown in fig. 5 (a); after the mold is opened, after a point g4 on the spring pin pushing block 7 passes a point g1, a point S2 on the bent pin 10 starts to contact a point n1 on the slider body 11, and the distance between the right side of the bent pin and the corresponding slider body 11 is S, so that the slider body 11 is in a static state in the process of moving the spring pin 5 rightwards and pulling the core, and the demolding of the part B of the product is realized (shown in fig. 1); 2. product dovetail groove part demoulding
After the spring pin 5 moves towards the right, the point s2 on the bent pin 10 crosses the point n1 on the slider body 11, and the slider body 11 starts to draw back towards the right side, as shown in fig. 5 (b); after the point s3 on the bending pin 10 passes the point n1 on the slider body 11, finishing the core pulling of the slider body 11, as shown in fig. 5(c) and (d), at this time, realizing the demolding of the dovetail groove part a of the product;
3. mold closure repeats the next injection cycle
Following the above, after achieving A, B partial demolding in FIG. 1, the article will be ejected and the mold will be closed for the next injection cycle. When the mold is closed, due to the moving thrust brought by the mold closing, the s4 point on the bending pin 10 firstly contacts the n5 point on the slider body 11, and under the pushing of the bending pin 10, the slider body 11 will return to the left until the s6 point on the bending pin 10 contacts the n5 point on the slider body 11, so as to realize the prior return of the slider body 11, as shown in fig. 6(a) and (b), and at the same time, the spring pin 5 is not contacted with the spring pin pushing block 7; after the point s6 on the bent pin 10 passes the point n5 on the slider body 11, the slider body 11 has already realized the first reset, will not move any more, and at this moment, the g4 point on the spring pin pushing block 7 will contact with the g1 point on the spring pin 5, push the spring pin 5 step by step and compress the spring 6 to reset, when the g3 point on the spring pin pushing block 7 passes the g1 point on the spring pin 5, the spring pin 5 realizes the reset; thereafter, the point g2 on the spring pin pushing block 7 gradually approaches the point g1 on the spring pin 5, the point s7 on the bending pin 10 gradually approaches the point n5 on the slider body 11, and the last four points finally coincide respectively, so that the reset closing of the whole demolding mechanism is realized, and the beginning of the next injection molding cycle is waited, as shown in fig. 6 (c).
The embodiments described herein are merely illustrative of the spirit of the invention and various modifications, additions and substitutions may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (1)

1. The use method of the secondary demolding mechanism mold for the concave product with the dovetail groove comprises the following steps: a mold demolding mechanism component: the wedge-caulking main slider comprises a main slider wedge-caulking block (1), a wedge-caulking block fastening screw (2), a bent pin fastening screw (3), a spring pin (5), a spring (6), a spring pin pushing block (7), a spring pin positioning block screw (8), a spring positioning block (9), a bent pin (10), a slider body (11) and a spring pushing block fastening screw (12); basic components of the mold structure: the device comprises a positioning ring (13), an upper die base plate (14), a cavity fixing plate (15), a cavity (16), a mold core (17), a movable die fixing plate (18), a die pin (19), a reset rod (20), an ejector pin cover plate (21), an ejector pin push plate (22) and a lower die base plate (23); the secondary demolding mechanism for the dovetail groove concave product comprises a slider wedging block (1), a wedging block fastening screw (2), a bent pin fastening screw (3), a spring pin (5), a spring (6), a spring pin pushing block (7), a spring pin positioning block screw (8), a spring positioning block (9), a bent pin (10), a slider body (11) and a spring pushing block fastening screw (12); the sliding block wedging block (1), the wedging block fastening screw (2), the bent pin fastening screw (3), the spring pin pushing block (7) and the spring pushing block fastening screw (12) are arranged on the die fixing part of the die; the sliding block body (11) is arranged on a movable mould part of the mould; the spring positioning block (9) is installed on the sliding block body (11) through a spring pin positioning block screw (8), the spring (6) is sleeved on the spring pin (5), and the spring pin (5) is installed on the head of the sliding block body (11) through a circular hole and can axially move along the installation hole under the extrusion of external force; the secondary demolding mechanism for the dovetail groove concave product is arranged in the mold structure; the basic assembly of the die structure comprises a positioning ring (13), an upper die base plate (14), a die cavity fixing plate (15), a die cavity (16), a die core (17), a movable die fixing plate (18), a die pin (19), a reset rod (20), an ejector pin cover plate (21), an ejector pin push plate (22) and a lower die base plate (23); under the closed state of the die, the spring pin pushing block tightly presses the spring pin, the spring is compressed, the spring pin forms a product forming part B, and the sliding block body forms a product forming part A; after the mold is opened, the spring pin moves upwards along with the fixed mold due to the fact that the spring pin pushing block is installed on the fixed mold part of the mold, and the spring pin is pushed by the spring to move gradually rightwards, so that core pulling of the part B is achieved; after the spring pin moves rightwards to loose the core, the bent pin crosses the sliding block body, and the sliding block body starts to loose the core towards the right side; after the bent pin passes through the sliding block body, the core pulling of the sliding block body is finished, and at the moment, the demolding of the dovetail groove part A of the product is realized; after the mold is opened, after a point g4 on the spring pin pushing block passes a point g1, a point S2 on the bent pin starts to contact a point n1 on the slider body 11, and the distance between the right side of the bent pin and the corresponding slider body is S, so that the slider body is in a static state in the process of moving the spring pin rightwards and pulling the core, and the demolding of the part B of the product is realized at the moment; the use method of the mold comprises the following steps:
1) concave demoulding of mould opening product
The injection molding product has A, B, C three concave parts, wherein A is a dovetail groove-shaped concave part, B is a major arc spherical concave part, and C is a vertical concave part; after the mold cavity is closed, injection molding and mold filling are carried out, and after cooling, the product is ready for demolding and demolding; under the closed state of the die, the spring pin pushing block tightly presses the spring pin, the spring is compressed, the spring pin forms a product forming part B, and the sliding block body forms a product forming part A; when the mold is opened in the initial state, the point g1 on the spring pin and the point g2 on the spring pin pushing block are superposed at the same position, and the distance between the points g2 and g3 is H; after the die is opened, the spring pin is pushed by the spring to move rightward gradually due to the fact that the spring pin pushing block is installed on the fixed die part of the die and moves upwards along with the fixed die, and after a point g3 on the spring pin pushing block crosses a point g1 on the spring pin, the spring pin moves rightward gradually until a point g4 on the spring pin pushing block crosses a point g1, and then core pulling of a part B is achieved; meanwhile, when the mold is opened in the initial state, the s1 point on the bent pin and the n1 point on the slider body are superposed at the same position; after the mold is opened, after a point g4 on the spring pin pushing block passes a point g1, a point S2 on the bent pin starts to contact a point n1 on the slider body, and the distance between the right side of the bent pin and the corresponding slider body is S, so that the slider body is in a static state in the process of moving the spring pin rightwards and pulling the core, and the demolding of the part B of the product is realized;
2) product dovetail groove part demoulding
After the spring pin moves rightwards to draw the core, an s2 point on the bent pin crosses an n1 point on the slider body, and the slider body starts to draw the core towards the right side; after the point s3 on the bent pin passes the point n1 on the slider body, the core pulling of the slider body is finished, and at the moment, the demolding of the dovetail groove A part of the product is realized;
3) mold closure repeats the next injection cycle
After A, B partial demolding is realized, the product is ejected out, the mold is closed, and the next injection molding cycle is realized; when the mold is closed, due to the movement thrust brought by mold closing, the s4 point on the bent pin firstly contacts the n5 point on the slider body, the slider body is reset leftwards under the pushing of the bent pin until the s6 point on the bent pin contacts the n5 point on the slider body, so that the first reset of the slider body is realized, and meanwhile, the spring pin is not contacted with the spring pin pushing block all the time; after the point s6 on the bent pin passes the point n5 on the slider body, the slider body is reset first and will not move any more, at the moment, the point g4 on the spring pin pushing block will be in point contact with the point g1 on the spring pin, the spring pin is pushed step by step and compressed to reset, and when the point g3 on the spring pin pushing block passes the point g1 on the spring pin, the spring pin is reset; after that, g2 points on the spring pin pushing block are gradually close to g1 points on the spring pin, s7 points on the bent pin are gradually close to n5 points on the sliding block body until the last four points and two groups are respectively and finally overlapped, the reset closing of the whole demoulding mechanism is realized, and the beginning of the next injection molding cycle is waited.
CN201711148452.4A 2015-03-04 2015-03-04 Secondary demolding mechanism mold for concave product with dovetail groove and using method of secondary demolding mechanism mold Expired - Fee Related CN107932848B (en)

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CN201711148452.4A CN107932848B (en) 2015-03-04 2015-03-04 Secondary demolding mechanism mold for concave product with dovetail groove and using method of secondary demolding mechanism mold

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510095147.8A CN105984094B (en) 2015-03-04 2015-03-04 A kind of band dovetail groove indent product secondary demolding mechanism and its mould
CN201711148452.4A CN107932848B (en) 2015-03-04 2015-03-04 Secondary demolding mechanism mold for concave product with dovetail groove and using method of secondary demolding mechanism mold

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102358005A (en) * 2011-08-12 2012-02-22 宁海县大鹏模具塑料有限公司 Slant-transverse combined core loosing movable mold slider device
CN203765956U (en) * 2014-03-31 2014-08-13 象山搏远智能科技有限公司 Insulated core injection mold
CN203779798U (en) * 2014-04-17 2014-08-20 象山搏远智能科技有限公司 Clamping sleeve mould

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7549856B2 (en) * 2007-05-10 2009-06-23 Cheng Uei Precision Industry Co., Ltd. Side core-pulling mechanism of mold
CN202021712U (en) * 2011-03-09 2011-11-02 苏州汉扬精密电子有限公司 Secondary core pulling mechanism for sliding block of male die
CN203580032U (en) * 2013-10-29 2014-05-07 昌辉汽车电器(黄山)股份公司 Injection mold with insert mounting structure
CN103640189B (en) * 2013-12-29 2015-12-09 大连銮艺精密模塑制造有限公司 A kind of mould deviating from plastic products by dovetail groove and spring mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102358005A (en) * 2011-08-12 2012-02-22 宁海县大鹏模具塑料有限公司 Slant-transverse combined core loosing movable mold slider device
CN203765956U (en) * 2014-03-31 2014-08-13 象山搏远智能科技有限公司 Insulated core injection mold
CN203779798U (en) * 2014-04-17 2014-08-20 象山搏远智能科技有限公司 Clamping sleeve mould

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CN105984094A (en) 2016-10-05
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