CN102962962A - Internal core-pulling mechanism of bent pin slide block of injection mold - Google Patents
Internal core-pulling mechanism of bent pin slide block of injection mold Download PDFInfo
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- CN102962962A CN102962962A CN2012104876665A CN201210487666A CN102962962A CN 102962962 A CN102962962 A CN 102962962A CN 2012104876665 A CN2012104876665 A CN 2012104876665A CN 201210487666 A CN201210487666 A CN 201210487666A CN 102962962 A CN102962962 A CN 102962962A
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Abstract
The invention discloses an internal core-pulling mechanism of a bent pin slide block of an injection mold. The internal core-pulling mechanism comprises an upper compound plate and a lower compound plate, wherein a locating ring is arranged inside the upper compound plate; a cavity is arranged below the upper compound plate; a die foot is arranged on the lower compound plate; a support plate is arranged on the die foot; a lower cavity core is arranged on the support plate; a limiting groove is arranged inside the lower cavity core and is internally provided with a distance blind rivet which passes through the lower cavity core to be fixed together with the support plate; a cylinder is arranged on the lateral wall of the lower cavity core; a stripper plate is arranged on the lower cavity core; a piston rod of the cylinder is fixed together with the stripper plate; an upper cavity core is arranged on the lower cavity core; a plastic part is formed among the upper cavity core, the lower cavity core and the cavity; the stripper plate contacts the plastic part; a bent pin fixing plate is arranged between the lower cavity core and the support plate; a bent pin is fixed inside the bent pin fixing plate; the upper cavity core is provided with a slide block cavity; an internal core-pulling slide block is arranged inside the slide block cavity; an internal core-pulling cavity core is arranged on one side of the internal core-pulling slide block; the internal core-pulling cavity core is matched with an inner hole of the plastic part; an oblique guide hole and a spring slot are arranged inside the internal core-pulling slide block; a compression spring is arranged inside the spring slot; one end of the compression spring contacts the spring slot; the other end of the compression spring contacts the inner wall of the slide block cavity, and the oblique guide hole of the internal core-pulling slide block is matched with the bent pin under the effect of the compression spring.
Description
Technical field
The present invention relates to the injection mold internal core-pulling mechanism, particularly relate to the curved pin slide block of injection mold internal core-pulling mechanism.
Background technology
Adopt injection mold to make working of plastics, if the inwall at working of plastics is shaped with hole or groove, need to loose core from working of plastics inside during the demoulding, traditional mode mostly adopts by force looses core, be about to the core end and make chamfering or sphere, by force working of plastics is released by stripper plate during the demoulding, the shortcoming of its existence is: working of plastics is damaged easily when deviating from, the particularly hole of working of plastics inwall or groove position cracky, distortion, the production of plastics parts percent defective is high, and stripping rate is slow, affects production efficiency, simultaneously also easily damaged, scuffing of working of plastics outward appearance, it is attractive in appearance to affect product.
Summary of the invention
The objective of the invention is provides a kind of at the working of plastics internal core-pulling in order to overcome the shortcoming of prior art existence, and working of plastics is deviate from smoothly, guarantee product quality, percent defective is low, avoids damaging the working of plastics outward appearance, the curved pin slide block of the injection mold of enhancing productivity internal core-pulling mechanism.
The technical scheme of the curved pin slide block of injection mold of the present invention internal core-pulling mechanism is: comprise compound plate and lower compound plate, in upper compound plate, centring ring is installed, be equipped with die cavity under the upper compound plate, at lower compound plate the mould pin is installed, on the mould pin gripper shoe is installed, be equipped with lower core on the gripper shoe, in lower core, open stopper slot, the spacing blind rivet is installed in the stopper slot, the spacing blind rivet passes lower core and gripper shoe fixes, at lower core sidewall oil cylinder is installed, be equipped with stripper plate on the lower core, piston rod and the stripper plate of oil cylinder fix, install core at lower core, the working of plastics that moulding is arranged between upper core and lower core and the die cavity, stripper plate contacts with working of plastics, it is characterized in that: curved pin fixed head is installed between described lower core and the gripper shoe, fixed bend pin in the curved pin fixed head, have slide block chamber at upper core, the inner core pulling slide block is set in the slide block chamber, in being shaped with, inner core pulling slide block one side takes out core, in take out core and match with the endoporus of working of plastics, in the inner core pulling slide block, have oblique guide hole and spring groove, Compress Spring is installed in the spring groove, one of Compress Spring contacts with spring groove, and the other end contacts with the slide block chamber inwall of lower core, and the oblique guide hole of inner core pulling slide block matches with curved pin under the effect of Compress Spring.
The invention discloses the curved pin slide block of a kind of injection mold internal core-pulling mechanism, after the working of plastics injection mo(u)lding, lower compound plate band dynamic model pin moves down, the moving gripper shoe of mould tape and curved pin fixed head move down, and curved pin fixed head drives curved pin and moves down, and mould is opened from curved pin fixed head and lower core, when curved pin moves down, the inner core pulling slide block moves right by the inclined-plane of oblique guide hole along curved pin under the effect of Compress Spring, takes out the endoporus that core is deviate from working of plastics in making; When taking out core and deviate from, spacing blind rivet top contacts with the stopper slot of lower core when interior, and the lower core of spacing blind rivet pulling moves down, and the oil cylinder of lower core sidewall drives stripper plate and moves down, and this moment, mould was opened from stripper plate and die cavity; Last oil cylinder promotes forward stripper plate through piston rod, and the working of plastics that inner core pulling has been finished in the stripper plate promotion upwards ejects, and then takes off working of plastics by artificial or manipulator.The curved pin slide block of this programme injection mold internal core-pulling mechanism, curved pin and inner core pulling slide block are installed in employing in core, inclined-plane by curved pin cooperates with the oblique guide hole of inner core pulling slide block, and have Compress Spring to promote the inner core pulling slide block, after the mould die sinking can so that in take out core and from the working of plastics side opening, automatically deviate from, side core-pulling is convenient in the mould, enhance productivity, and action operates steadily, smoothly, and the rate of reducing the number of rejects and seconds guarantees product quality.
The curved pin slide block of injection mold of the present invention internal core-pulling mechanism, on the lateral wall of described lower core supporting pin is installed, swing arm is installed on the supporting pin, swing arm is rotatably connected with supporting pin through bearing pin, be shaped with drag hook on the described swing arm, be shaped with inclined guide under the swing arm, be connected back-moving spring between inclined guide and the lower compound plate, at the lateral wall of die cavity block is installed, block matches with drag hook, install and fix pin at curved pin fixed head sidewall, roller is installed on the steady pin, roller contacts with the inclined guide of swing arm.When mould during in lower core and the die sinking of curved pin fixed head place, be stuck on the block by drag hook, avoid the also and then die sinking of die cavity and upper core place, curved like this pin just moves down with the inner core pulling slide block, simultaneously, action of reset spring is in the interior core of taking out, so that in take out core to slides within, finish smoothly inner core pulling action, in inner core pulling, roller is moved downward to the inclined guide position of swing arm, mould continues to open downwards, and around the supporting pin rotation, swing arm drives drag hook and rotates laterally swing arm under the active force of inclined guide and roller, make drag hook break away from block, this moment, mould can be from stripper plate and die cavity die sinking.
Description of drawings
Fig. 1 is the curved pin slide block of injection mold internal core-pulling mechanism matched moulds status architecture schematic diagram;
Fig. 2 is that injection mold is from gripper shoe and curved pin fixed head die opening state structural representation;
Fig. 3 is that injection mold is from stripper plate and die cavity die opening state structural representation;
Fig. 4 is the working of plastics demoulding status architecture schematic diagram of injection mold.
The specific embodiment
The present invention relates to the curved pin slide block of a kind of injection mold internal core-pulling mechanism, such as Fig. 1-shown in Figure 4, comprise compound plate 1 and lower compound plate 2, centring ring 3 is installed in upper compound plate, be equipped with die cavity 4 under the upper compound plate, at lower compound plate 2 mould pin 5 is installed, gripper shoe 6 is installed on the mould pin, be equipped with lower core 7 on the gripper shoe, in lower core, open stopper slot 31, spacing blind rivet 32 is installed in the stopper slot, spacing blind rivet 32 passes lower core 7 and fixes with gripper shoe 6, at lower core sidewall oil cylinder 8 is installed, be equipped with stripper plate 9 on the lower core, piston rod 10 and the stripper plate 9 of oil cylinder fix, install core 11 at lower core 7, the working of plastics 12 that moulding is arranged between upper core 11 and lower core 7 and the die cavity 4, stripper plate 9 contacts with working of plastics, it is characterized in that: curved pin fixed head 13 is installed between described lower core 7 and the gripper shoe 6, fixed bend pin 14 in the curved pin fixed head 13, have slide block chamber 15 at upper core 11, inner core pulling slide block 16 is set in the slide block chamber 15, take out core 17 in inner core pulling slide block 16 1 sides are shaped with, in take out core and match with the endoporus 18 of working of plastics 12, in the inner core pulling slide block, have oblique guide hole 19 and spring groove 20, Compress Spring 21 is installed in the spring groove, 21 1 of Compress Springs contact with spring groove 20, and the other end contacts with slide block chamber 15 inwalls of lower core 7, and the oblique guide hole 19 of inner core pulling slide block 16 matches with curved pin 14 under the effect of Compress Spring 21.After working of plastics 12 injection mo(u)ldings, lower compound plate 2 band dynamic model pin 5 move down, the moving gripper shoe 6 of mould tape and curved pin fixed head 13 move down, curved pin fixed head drives curved pin 14 and moves down, mould is opened from curved pin fixed head 13 and lower core 7, and when curved pin 14 moved down, inner core pulling slide block 16 was under the effect of Compress Spring 21, move right by the inclined-plane of oblique guide hole 19 along curved pin 14, take out the endoporus 18 that core 17 is deviate from working of plastics 12 in making; When taking out core 17 and deviate from, spacing blind rivet 32 tops contact with the stopper slot 31 of lower core 7 when interior, and the lower core of spacing blind rivet pulling moves down, and the oil cylinder 8 of lower core sidewall drives stripper plates 9 and moves down, and this moment, mould was opened from stripper plate 9 and die cavity 4; Last oil cylinder promotes forward stripper plate 9 through piston rod 10, and the working of plastics 12 that inner core pulling has been finished in the stripper plate promotion upwards ejects, and then takes off working of plastics 12 by artificial or manipulator.The curved pin slide block of this programme injection mold internal core-pulling mechanism, curved pin 14 and inner core pulling slide block 16 are installed in employing in core, inclined-plane by curved pin cooperates with the oblique guide hole 19 of inner core pulling slide block, and have Compress Spring 21 to promote inner core pulling slide blocks 16, after the mould die sinking can so that in take out core 17 and from working of plastics side opening 18, automatically deviate from, side core-pulling is convenient in the mould, enhance productivity, and action operates steadily, smoothly, and the rate of reducing the number of rejects and seconds guarantees product quality.Supporting pin 22 is installed on the lateral wall of described lower core 7, swing arm 23 is installed on the supporting pin, swing arm is rotatably connected with supporting pin 22 through bearing pin 24, is shaped with drag hook 25 on the described swing arm 23, is shaped with inclined guide 26 under the swing arm, be connected back-moving spring 27 between inclined guide and the lower compound plate, lateral wall at die cavity 4 is installed block 28, and block matches with drag hook, installs and fixes pin 29 at curved pin fixed head 13 sidewalls, roller 30 is installed on the steady pin, and roller contacts with the inclined guide 26 of swing arm 23.When mould during in lower core 7 and the die sinking of curved pin fixed head 13 places, be stuck on the block 28 by drag hook 25, avoid the also and then die sinking of die cavity 4 and upper core 11 places, curved like this pin 14 just moves down with inner core pulling slide block 16, simultaneously, in acting on, takes out by back-moving spring 21 core 17, so that in take out core 17 to slides within, finish smoothly the inner core pulling action, in inner core pulling, roller 30 is moved downward to inclined guide 26 positions of swing arm 23, mould continues to open downwards, and around supporting pin 22 rotations, swing arm 23 drives drag hook 25 and rotates laterally swing arm 23 under the active force of inclined guide and roller, make drag hook break away from block 28, this moment, mould can be from stripper plate 9 and die cavity 4 die sinkings.
Claims (2)
1. the curved pin slide block of injection mold internal core-pulling mechanism, comprise compound plate (1) and lower compound plate (2), centring ring (3) is installed in upper compound plate, be equipped with die cavity (4) under the upper compound plate, at lower compound plate (2) mould pin (5) is installed, gripper shoe (6) is installed on the mould pin, be equipped with lower core (7) on the gripper shoe, in lower core, open stopper slot (31), spacing blind rivet (32) is installed in the stopper slot, spacing blind rivet (32) passes lower core (7) and fixes with gripper shoe (6), at lower core sidewall oil cylinder (8) is installed, be equipped with stripper plate (9) on the lower core, the piston rod of oil cylinder (10) fixes with stripper plate (9), install core (11) at lower core (7), the working of plastics (12) that moulding is arranged between upper core (11) and lower core (7) and the die cavity (4), stripper plate (9) contacts with working of plastics, it is characterized in that: curved pin fixed head (13) is installed between described lower core (7) and the gripper shoe (6), fixed bend pin (14) in the curved pin fixed head (13), have slide block chamber (15) at upper core (11), inner core pulling slide block (16) is set in the slide block chamber (15), in being shaped with, inner core pulling slide block (16) one sides take out core (17), in take out core and match with the endoporus (18) of working of plastics (12), in the inner core pulling slide block, have oblique guide hole (19) and spring groove (20), Compress Spring (21) is installed in the spring groove, (21) one of Compress Springs contact with spring groove (20), the other end contacts with slide block chamber (15) inwall of lower core (7), and the oblique guide hole (19) of inner core pulling slide block (16) matches with curved pin (14) under the effect of Compress Spring (21).
2. the curved pin slide block of injection mold as claimed in claim 1 internal core-pulling mechanism, it is characterized in that: supporting pin (22) is installed on the lateral wall of described lower core (7), swing arm (23) is installed on the supporting pin, swing arm is rotatably connected with supporting pin (22) through bearing pin (24), be shaped with drag hook (25) on the described swing arm (23), be shaped with inclined guide (26) under the swing arm, be connected back-moving spring (27) between inclined guide and the lower compound plate, lateral wall at die cavity (4) is installed block (28), block matches with drag hook, install and fix pin (29) at curved pin fixed head (13) sidewall, roller (30) is installed on the steady pin, and roller contacts with the inclined guide (26) of swing arm (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210487666.5A CN102962962B (en) | 2012-11-27 | 2012-11-27 | Internal core-pulling mechanism of bent pin slide block of injection mold |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210487666.5A CN102962962B (en) | 2012-11-27 | 2012-11-27 | Internal core-pulling mechanism of bent pin slide block of injection mold |
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| CN102962962A true CN102962962A (en) | 2013-03-13 |
| CN102962962B CN102962962B (en) | 2015-07-01 |
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| CN201210487666.5A Expired - Fee Related CN102962962B (en) | 2012-11-27 | 2012-11-27 | Internal core-pulling mechanism of bent pin slide block of injection mold |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223714A (en) * | 2013-04-27 | 2013-07-31 | 永高股份有限公司 | Slide block core pulling mechanism in rainwater socket mold |
| CN107160645A (en) * | 2017-07-12 | 2017-09-15 | 滨海模塑集团有限公司 | The oblique core pulling of molding mold cavity side wide-angle, the synchronous floating core-pulling mechanism of guide pad |
| CN107225713A (en) * | 2016-03-25 | 2017-10-03 | 苏州汉扬精密电子有限公司 | The mould of back-off exit structure with endoporus side wall |
| CN109130102A (en) * | 2018-10-26 | 2019-01-04 | 金陵科技学院 | A kind of adjustable internal loose core injection mold of Core-pulling distance |
| CN112895360A (en) * | 2021-02-08 | 2021-06-04 | 张策旗 | Anti-deformation cooling mechanism of large turnover box die |
| CN113211733A (en) * | 2021-04-28 | 2021-08-06 | 殷海欣 | Mechanical mould switch closer |
| CN110154334B (en) * | 2019-06-04 | 2021-08-24 | 浙江台州美多模具有限公司 | Multi-direction core-pulling mechanism for sliding block of injection mold |
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| JPS5954507A (en) * | 1982-09-22 | 1984-03-29 | Toshiba Corp | Metallic mold |
| JP2000289035A (en) * | 1999-04-12 | 2000-10-17 | Calsonic Kansei Corp | Slide core driving mechanism for resin molding die |
| CN102078952A (en) * | 2009-11-27 | 2011-06-01 | 牟维军 | Inner core-pulling die mechanism with bent pin |
| CN202965093U (en) * | 2012-11-27 | 2013-06-05 | 台州市凯华塑业有限公司 | Internal core-pulling mechanism of dog-leg cam slide block of injection mold |
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2012
- 2012-11-27 CN CN201210487666.5A patent/CN102962962B/en not_active Expired - Fee Related
Patent Citations (4)
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| JPS5954507A (en) * | 1982-09-22 | 1984-03-29 | Toshiba Corp | Metallic mold |
| JP2000289035A (en) * | 1999-04-12 | 2000-10-17 | Calsonic Kansei Corp | Slide core driving mechanism for resin molding die |
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| 江昌勇，沈洪雷等: "《塑料成型模具设计》", 30 September 2012, 北京大学出版社 * |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223714A (en) * | 2013-04-27 | 2013-07-31 | 永高股份有限公司 | Slide block core pulling mechanism in rainwater socket mold |
| CN103223714B (en) * | 2013-04-27 | 2015-10-14 | 永高股份有限公司 | Rainwater beam section mould inner slide core-pulling mechanism |
| CN107225713A (en) * | 2016-03-25 | 2017-10-03 | 苏州汉扬精密电子有限公司 | The mould of back-off exit structure with endoporus side wall |
| CN107225713B (en) * | 2016-03-25 | 2019-09-20 | 苏州汉扬精密电子有限公司 | The mold of back-off exit structure with inner hole side wall |
| CN107160645A (en) * | 2017-07-12 | 2017-09-15 | 滨海模塑集团有限公司 | The oblique core pulling of molding mold cavity side wide-angle, the synchronous floating core-pulling mechanism of guide pad |
| CN109130102A (en) * | 2018-10-26 | 2019-01-04 | 金陵科技学院 | A kind of adjustable internal loose core injection mold of Core-pulling distance |
| CN109130102B (en) * | 2018-10-26 | 2023-09-19 | 金陵科技学院 | Inner core-pulling injection mold with adjustable core-pulling distance |
| CN110154334B (en) * | 2019-06-04 | 2021-08-24 | 浙江台州美多模具有限公司 | Multi-direction core-pulling mechanism for sliding block of injection mold |
| CN112895360A (en) * | 2021-02-08 | 2021-06-04 | 张策旗 | Anti-deformation cooling mechanism of large turnover box die |
| CN113211733A (en) * | 2021-04-28 | 2021-08-06 | 殷海欣 | Mechanical mould switch closer |
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|---|---|
| CN102962962B (en) | 2015-07-01 |
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| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 317108, Zhejiang Province three counties Pu dam town (Zhejiang three coastal industrial city) Applicant after: Taizhou plain Kai Hua automobile die Co., Ltd Address before: The three door county of Taizhou City, Zhejiang province 317108 along the red (three in Zhejiang coastal industrial city) Applicant before: Taizhou City Kaihua Plastic Industry Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: TAIZHOU KAIHUA PLASTIC INDUSTRY CO., LTD. TO: TAIZHOU KAIHUA AUTOMOTIVE MOULDS CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20161127 |