CN110126215B - Outer core-pulling mechanism of fixed die side inclined guide post of injection mold - Google Patents
Outer core-pulling mechanism of fixed die side inclined guide post of injection mold Download PDFInfo
- Publication number
- CN110126215B CN110126215B CN201910394959.0A CN201910394959A CN110126215B CN 110126215 B CN110126215 B CN 110126215B CN 201910394959 A CN201910394959 A CN 201910394959A CN 110126215 B CN110126215 B CN 110126215B
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- Prior art keywords
- plate
- die plate
- fixed
- inclined guide
- fixed die
- Prior art date
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- 238000002347 injection Methods 0.000 title claims abstract description 24
- 239000007924 injection Substances 0.000 title claims abstract description 24
- 239000004033 plastic Substances 0.000 claims abstract description 33
- 229920003023 plastic Polymers 0.000 claims abstract description 33
- 150000001875 compounds Chemical class 0.000 claims abstract description 26
- 238000001746 injection moulding Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000003466 welding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
Abstract
The outer core pulling mechanism of the side inclined guide post of the fixed die of the injection mold comprises an upper compound plate and a lower compound plate, wherein a template is arranged below the upper compound plate, a perforation is formed in the lower compound plate, a die foot, an upper ejector pin plate, a lower ejector pin plate and an ejector pin are arranged on the lower compound plate, a movable template is arranged on the die foot, a plastic piece is arranged between the movable template and the fixed template, a side hole is formed in the side wall of the plastic piece, a side core pulling sliding block is arranged below the fixed template, an inclined guide hole is formed in the side core pulling sliding block, a bump is formed in one side of the side core pulling sliding block, a side pulling hole is formed in the fixed template, an inclined guide post and a lock module are arranged in the base plate, the inclined guide post is matched with the inclined guide hole, the lock module is fixed with the base plate through a fastener, the lock module is matched with the outer wall of the side core pulling sliding block, a spring groove is arranged below the movable template, a first spring is arranged in the spring groove, a distance pulling groove is formed below the base plate, a through hole is formed in the distance pulling groove, a distance pulling pin is arranged in the distance pulling groove, a distance fixing plate is formed below the distance pulling pin, and the distance pulling pin is connected with the movable template through the through hole and the spring groove.
Description
Technical Field
The invention relates to an injection mold, in particular to an outer core pulling mechanism of a fixed mold side inclined guide post of the injection mold.
Background
In some plastic parts, the requirements of people on the surfaces of the appearance are very high (such as decoration pieces on the outer part of an automobile, a mobile phone shell and the like), if side holes are formed on the side surfaces of a product, a fixed die plate 1' and a movable die plate 2' are generally adopted (as shown in fig. 5) in the prior art, an inclined guide pillar 3' is arranged in the fixed die plate, a side core-pulling sliding block 4' is arranged on the movable die plate, an inclined guide hole 5' is formed in the side core-pulling sliding block, and when the mold is opened, the inclined guide pillar is matched with the inclined guide hole of the side core-pulling sliding block to drive the side core-pulling sliding block to move outwards to extract the side holes of the plastic parts, so that the structure has the defects that: because directly set up the slider of loosing core of side at the working of plastics lateral wall, the outer wall of working of plastics can't be wrapped completely to the fixed die plate, produce the parting line between fixed die plate and the slider of loosing core of side, make injection moulding's working of plastics outer wall be located the welding line after fixed die plate and the slider department of loosing core of side leave the parting, thereby influence the appearance of working of plastics, therefore people set up the slider of loosing core of side in fixed die plate one side, make the fixed die plate can wrap up the outer wall of working of plastics completely, and drive the side hole of the slider of loosing core of side through the hydro-cylinder and take out the working of plastics, adopt the hydro-cylinder structure, on the one hand improved the manufacturing cost of mould, on the other hand need to drive the side through the hydro-cylinder and loose core the slider of loosing core earlier before the mould die sinking, just can the die sinking again, the production efficiency of messenger's mould reduces.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides the injection mold fixed mold side inclined guide post outer core pulling mechanism which can prevent the surface of a plastic part from leaving a welding line, ensure the attractive appearance of the plastic part, reduce the manufacturing cost of a mold and improve the production efficiency.
The invention discloses a technical scheme of an outer core-pulling mechanism of a fixed die side inclined guide post of an injection mold, which comprises the following steps: comprises an upper compound plate and a lower compound plate, wherein the upper compound plate is provided with a fixed die plate below, a perforation is arranged in the lower compound plate, a die foot is arranged on the lower compound plate between the die feet, an upper ejector plate, a lower ejector plate and ejector pins are arranged on the lower compound plate between the die feet, an ejector pin of an injection machine passes through the perforation to be contacted with the lower ejector pin plate, a base plate is arranged on the die foot, a movable die plate is arranged on the base plate, an injection molded plastic part is arranged between the movable die plate and the fixed die plate, a side hole is arranged on the side wall of the plastic part, a side core-pulling sliding block is arranged below the fixed die plate, the upper end of the side core-pulling sliding block is in sliding fit with the fixed die plate, an inclined guide hole is arranged in the side core-pulling sliding block, a lug is arranged on one side of the side core-pulling sliding block, a side drawing hole is arranged in the fixed die plate, the lug of the side core-pulling sliding block passes through the side drawing hole to be matched with the side hole of the plastic part, an inclined guide post and a lock module are arranged in the base plate, a baffle is arranged at the bottom of the inclined guide post, the baffle is fixed with the base plate through a fastener, the upper end of the inclined guide post passes through the base plate and a movable mould plate to be matched with an inclined guide hole of a side core-pulling sliding block, the lock module is fixed with the base plate through the fastener, the upper end of the lock module passes through the movable mould plate to be matched with the outer wall of the side core-pulling sliding block, a spring groove is arranged below the movable mould plate, the spring groove is internally provided with a first spring, the upper end of the first spring is contacted with the movable template, the lower end of the first spring is contacted with the base plate, a distance pull groove is formed below the base plate, a through hole is formed in the distance pull groove, the distance pull groove is internally provided with a distance pull nail, the lower part of the distance pull nail is provided with a distance plate, and the upper end of the distance pull nail penetrates through the through hole and the spring groove to be connected with the movable template.
The invention discloses an outer core pulling mechanism of a fixed die side inclined guide post of an injection mold, which is characterized in that after a plastic part is injection molded, a lower compound plate drives a die foot, an upper ejector pin plate, a lower ejector pin plate, an ejector pin, a base plate, a locking module, an inclined guide post and a baffle plate to move backwards, when the base plate moves backwards, a first spring props against a movable die plate forwards under the action of restoring force, so that the movable die plate, the fixed-distance blind rivet and the plastic part are kept motionless, the mold is firstly opened from the position between the base plate and the movable die plate for the first time, when the locking module and the inclined guide post move backwards, the locking module is gradually separated from a contact side core pulling slide block, the inclined guide post is matched with an inclined guide hole of the side core pulling slide block, the side core pulling slide block is driven to gradually move outwards, so that a lug of the side core pulling slide block outwards extracts a side hole of the plastic part, and when a fixed-distance plate of the fixed-distance blind rivet contacts with a fixed-distance pull groove, the fixed-distance blind rivet is driven by the fixed-distance pull rivet to move backwards, so that the driven die plate and the fixed-distance blind plate of the mold is opened for the second time, and finally, the ejector pin of the injection machine is driven by an ejector pin of the injection machine to lift the upper ejector pin and the ejector pin of the plastic part. According to the scheme, the side core pulling slide block is arranged on one side of the fixed die, the inclined guide pillar and the fixed-distance blind rivet structure are arranged on one side of the movable die, the side holes of the plastic part are pulled out through two times of die opening, so that the welding line is prevented from being left on the surface of the plastic part, the attractive appearance of the plastic part is ensured, the oil cylinder structure is saved, the manufacturing cost of the die is reduced, and the production efficiency is improved.
The invention relates to an outer core pulling mechanism of a fixed mould side inclined guide post of an injection mould, wherein a locating hole is formed in a fixed mould plate, a locating pin is arranged in the locating hole, a second spring is arranged at the upper end of the locating pin, the upper end of the second spring is contacted with an upper complex plate, the lower end of the second spring is contacted with the locating pin, a front locating groove and a rear locating groove are formed on a side core pulling sliding block, and the locating pin is matched with the front locating groove and the rear locating groove. When the die assembly is in a die assembly state, the rear positioning groove on the side core-pulling sliding block is matched with the lower end of the positioning pin, when the side core-pulling sliding block is used for outwards pulling the core, the rear positioning groove is matched with the positioning pin and pushes the positioning pin to move upwards, the positioning pin upwards extrudes the second spring, when the front positioning groove of the side core-pulling sliding block corresponds to the positioning pin, the second spring pushes the positioning pin to be downwards clamped into the front positioning groove, at the moment, the side core-pulling sliding block also exactly completes the core-pulling action, and the positioning pin plays a role in die assembly and core-pulling action of the side core-pulling sliding block with the front positioning groove and the rear positioning groove, so that the action accuracy of the side core-pulling sliding block is ensured. The fixed die plate is provided with a strong locating block, the strong locating block is fixed with the fixed die plate through a fastener, and the side core-pulling sliding block is contacted with the strong locating block when the core is pulled. The powerful positioning block can play a role in further powerful positioning for the outward core pulling action of the side core pulling slide block.
Drawings
FIG. 1 is a schematic diagram of a clamping state structure of an outer core pulling mechanism of a fixed mold side inclined guide pillar of an injection mold;
fig. 2 is a schematic diagram of a first mold opening state structure of an outer core pulling mechanism of a fixed mold side inclined guide pillar of an injection mold;
fig. 3 is a schematic diagram of a second mold opening state structure of the outer core pulling mechanism of the fixed mold side inclined guide pillar of the injection mold;
fig. 4 is a schematic structural view of a plastic part ejection state of an outer core pulling mechanism of a fixed mold side inclined guide post of an injection mold;
fig. 5 is a schematic structural view of a side core-pulling slide block arranged on one side of a movable mold of a conventional injection mold.
Detailed Description
The invention relates to an outer core pulling mechanism of a side inclined guide post of a fixed mold of an injection mold, which is shown in fig. 1-4, and comprises an upper compound plate 1 and a lower compound plate 2, wherein the upper compound plate is provided with a fixed mold plate 3 below, a through hole 4 is arranged in the lower compound plate, a mold foot 5 is arranged on the lower compound plate between the mold feet, an upper ejector pin plate 6, a lower ejector pin plate 7 and an ejector pin 8 are arranged on the lower compound plate between the mold feet, an ejector rod 9 of the injection machine passes through the through hole 4 to be contacted with the lower ejector pin, a base plate 10 is arranged on the mold foot 5, a movable mold plate 11 is arranged on the base plate, a plastic part 12 which is injection molded is arranged between the movable mold plate and the fixed mold plate 3, a side hole 13 is formed on the side wall of the plastic part, a side core pulling slide block 14 is arranged below the fixed mold plate 3, the upper end of the side core pulling slide block is in sliding fit with the fixed mold plate, a inclined guide hole 15 is arranged in the side core pulling slide block, a lug 16 is arranged on one side of the side core pulling slide block, a side pulling hole 17 is arranged in the fixed mold plate 3, the lug of the side core pulling slide block passes through the side pulling hole and is matched with the side hole 13 of the side hole of the side pulling slide, the base plate 10 is provided with an inclined guide post 18 and a lock module 19, the bottom of the inclined guide post is provided with a baffle 20, the baffle is fixed with the base plate through a fastener, the upper end of the inclined guide post passes through the base plate 10 and a movable mould plate 11 to be matched with an inclined guide hole 15 of a side core-pulling slide block 14, the lock module 19 is fixed with the base plate through the fastener, the upper end of the lock module passes through the movable mould plate 11 to be matched with the outer wall of the side core-pulling slide block 14, the movable mould plate 11 is provided with a spring groove 21, a first spring 22 is arranged in the spring groove, the upper end of the first spring is contacted with the movable mould plate, the lower end of the first spring is contacted with the base plate 10, a distance pull groove 23 is arranged below the base plate, a through hole 24 is formed in the distance pull groove, a distance pull nail 25 is arranged in the distance pull groove, a distance plate 26 is arranged below the distance pull nail, and the upper end of the distance pull nail passes through the through hole 24 and the spring groove 21 to be connected with the movable mould plate 11, the lower compound plate 2 drives the die feet 5, the upper ejector plate 6, the lower ejector plate 7, the ejector pins 8, the base plate 10, the lock module 19, the inclined guide posts 18 and the baffle 20 to move backwards, when the base plate 10 moves backwards, the first spring 22 props the movable die plate 11 forwards under the action of restoring force, so that the movable die plate, the fixed-distance blind pins 25 and the plastic piece 12 are kept motionless, the die is firstly opened for the first time between the base plate 10 and the movable die plate 11, when the lock module 19 and the inclined guide posts 18 move backwards, the lock module gradually breaks away from the contact side core-pulling slide block 14, the inclined guide posts 18 are matched with the inclined guide holes 15 of the side core-pulling slide block 14, the side core-pulling slide block is driven to gradually move outwards, the side hole 13 of the plastic piece 12 is led to be outwards drawn by the protruding blocks 16 of the side core-pulling slide block, when the fixed-distance plate 26 of the fixed-distance blind pins 25 contacts with the fixed-distance blind slots 23, the fixed-distance blind pins 25 are driven by the fixed-distance blind slots 23, the movable die plate 11 and the plastic piece 12 move backwards together, so that the die is driven by the movable die plate and the fixed die plate 3 to be secondarily opened, and finally, and the ejector pins 9, the ejector pins 7 and the ejector pins 8 of the ejector pins are driven by the ejector pins and the ejector pins. According to the scheme, the side core pulling slide block 14 is arranged on one side of the fixed die, the inclined guide pillar 18 and the fixed-distance blind rivet 25 are arranged on one side of the movable die, the side hole 13 of the plastic part 12 is pulled out through twice die opening, so that the welding line is prevented from being left on the surface of the plastic part, the attractive appearance of the plastic part is ensured, the oil cylinder structure is saved, the manufacturing cost of the die is reduced, and the production efficiency is improved. The fixed die plate 3 is provided with a positioning hole 27, a positioning pin 28 is arranged in the positioning hole, the upper end of the positioning pin is provided with a second spring 29, the upper end of the second spring is contacted with the upper complex plate 1, the lower end of the second spring is contacted with the positioning pin 28, the side core-pulling slide block 14 is provided with a front positioning groove 30 and a rear positioning groove 31, and the positioning pin is matched with the front positioning groove and the rear positioning groove. When in a die assembly state, the rear positioning groove 31 on the side core-pulling slide block 14 is matched with the lower end of the positioning pin 28, when the side core-pulling slide block is used for outwards pulling the core, the rear positioning groove is matched with the positioning pin, the positioning pin 28 is pushed to move upwards, the positioning pin upwards extrudes the second spring 29, when the front positioning groove 30 of the side core-pulling slide block 14 corresponds to the positioning pin 28, the second spring 29 pushes the positioning pin 28 to be clamped into the front positioning groove 39 downwards, at the moment, the side core-pulling slide block 14 just completes the core-pulling action, and the positioning pin 28 plays a positioning role with the front positioning groove 30 and the rear positioning groove 31 on the die assembly and the core-pulling action of the side core-pulling slide block 14, so that the action is accurate. The fixed die plate 3 is provided with a powerful positioning block 32, the powerful positioning block is fixed with the fixed die plate through a fastener, and the side core-pulling slide block 14 contacts with the powerful positioning block 32 when pulling core. The powerful positioning block 32 can play a role in further powerful positioning for the outward core pulling action of the side core pulling slide block 14.
Claims (1)
1. The utility model provides an outer mechanism of loosing core of injection mold cover half side slope guide pillar, including last compound board (1) and compound board down (2), go up compound board and set up fixed die plate (3) down, it has perforation (4) to open in the compound board down, set up mould foot (5) on the compound board down, set up on the compound board down between the mould foot thimble board (6), thimble board (7) and thimble (8) down, ejector pin (9) of injection machine pass perforation (4) and contact with thimble board down, set up backing plate (10) on mould foot (5), set up movable mould board (11) on the backing plate, there is injection moulding's plastic part (12) between movable mould board and the fixed die plate (3), the lateral wall of plastic part is made and is had side opening (13), its characterized in that: the fixed die plate (3) is provided with a side core pulling slide block (14) at the lower part, the upper end of the side core pulling slide block is in sliding fit with the fixed die plate, an inclined guide hole (15) is arranged in the side core pulling slide block, a convex block (16) is arranged at one side of the side core pulling slide block, a side drawing hole (17) is arranged in the fixed die plate (3), the convex block of the side core pulling slide block passes through the side drawing hole to be matched with a side hole (13) of a plastic part (12), an inclined guide column (18) and a locking module (19) are arranged in a base plate (10), a baffle plate (20) is arranged at the bottom of the inclined guide column, the baffle plate is fixed with the base plate through a fastener, the upper end of the inclined guide column passes through the base plate (10) and a movable die plate (11) to be matched with an inclined guide hole (15) of the side core pulling slide block (14), the locking module (19) is fixed with the base plate through a fastener, a spring groove (21) is arranged at the lower part of the movable die plate (11), a first spring (22) is arranged in the spring groove, the upper end of the first spring is contacted with the movable die plate (10), the lower end of the first spring is contacted with the movable die plate (21) and the fixed die plate is contacted with the fixed die plate (25), the upper end of the fixed die plate is fixed with the fixed die plate (25) through a fixed die plate, the fixed die plate (3) in make locating hole (27), set up locating pin (28) in the locating hole, the upper end of locating pin sets up second spring (29), the upper end of second spring contacts with last compound plate (1), the lower extreme of second spring contacts with locating pin (28), has front positioning groove (30) and back constant head tank (31) on side loose core slider (14), the locating pin cooperatees with front and back constant head tank, fixed die plate (3) under set up powerful locating piece (32), powerful locating piece is fixed mutually with the fixed die plate through the fastener, contacts with powerful locating piece (32) when side loose core slider (14) loose core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910394959.0A CN110126215B (en) | 2019-05-13 | 2019-05-13 | Outer core-pulling mechanism of fixed die side inclined guide post of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910394959.0A CN110126215B (en) | 2019-05-13 | 2019-05-13 | Outer core-pulling mechanism of fixed die side inclined guide post of injection mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110126215A CN110126215A (en) | 2019-08-16 |
| CN110126215B true CN110126215B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910394959.0A Active CN110126215B (en) | 2019-05-13 | 2019-05-13 | Outer core-pulling mechanism of fixed die side inclined guide post of injection mold |
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| CN (1) | CN110126215B (en) |
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| CN111168944B (en) * | 2020-01-10 | 2021-10-19 | 宁波方正汽车模具股份有限公司 | Twice-action core-pulling mechanism of injection mold of air inlet casing of automobile engine |
| CN111168943B (en) * | 2020-01-10 | 2021-10-22 | 宁波方正汽车模具股份有限公司 | Demoulding mechanism of automobile air conditioner air duct injection mould |
| CN113021799B (en) * | 2021-03-08 | 2022-07-15 | 上海铭嵌模塑科技有限公司 | Injection mold with perforating and demolding mechanism |
| CN113681843B (en) * | 2021-07-28 | 2023-02-28 | 株洲时代新材料科技股份有限公司 | Full-automatic demolding rubber mold and demolding method thereof |
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| KR890008616U (en) * | 1987-10-26 | 1989-05-29 | 삼성전자 주식회사 | External undercut processing device of injection mold |
| CN201881521U (en) * | 2010-12-28 | 2011-06-29 | 佛山市南海东方塑料制品有限公司 | Traceless core pulling mechanism for plastic injection mold for transparent shelf in refrigerator |
| CN202200477U (en) * | 2011-07-21 | 2012-04-25 | 浙江金典模具有限公司 | Sliding core-pulling mechanism in inclined guide column at side hole of plastic shell |
| CN103963234A (en) * | 2014-04-29 | 2014-08-06 | 台州市凯华塑业有限公司 | Side pull-rod spring core-pulling mechanism for injection mold cavity |
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| CN207388194U (en) * | 2017-07-04 | 2018-05-22 | 杭州职业技术学院 | A kind of blind flange plastic mould |
| CN108748897A (en) * | 2018-05-23 | 2018-11-06 | 乌鲁木齐九品芝麻信息科技有限公司 | A kind of preceding mould bullet slippage is molded into mould |
| CN210679526U (en) * | 2019-05-13 | 2020-06-05 | 台州市凯华汽车模具有限公司 | Outer core-pulling mechanism for fixed die side inclined guide pillar of injection mold |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR890008616U (en) * | 1987-10-26 | 1989-05-29 | 삼성전자 주식회사 | External undercut processing device of injection mold |
| CN201881521U (en) * | 2010-12-28 | 2011-06-29 | 佛山市南海东方塑料制品有限公司 | Traceless core pulling mechanism for plastic injection mold for transparent shelf in refrigerator |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110126215A (en) | 2019-08-16 |
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