CN110893668A - Two-stage core-pulling mechanism of injection mold - Google Patents
Two-stage core-pulling mechanism of injection mold Download PDFInfo
- Publication number
- CN110893668A CN110893668A CN201911165561.6A CN201911165561A CN110893668A CN 110893668 A CN110893668 A CN 110893668A CN 201911165561 A CN201911165561 A CN 201911165561A CN 110893668 A CN110893668 A CN 110893668A
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- Prior art keywords
- core
- fixing seat
- inner needle
- sliding block
- stage
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- 238000002347 injection Methods 0.000 title claims abstract description 17
- 239000007924 injection Substances 0.000 title claims abstract description 17
- 238000009434 installation Methods 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 238000001746 injection moulding Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a two-stage core pulling mechanism of an injection mold, which comprises a base, wherein the rear end of the base is connected with a driving device, the front end of the driving device is connected with a first-stage core pulling device, the front end of the first-stage core pulling device is provided with an inner needle, the front end of the first-stage core pulling device is provided with a second-stage core pulling device, the first-stage core pulling device can drive the second-stage core pulling device to move backwards after moving backwards for a certain distance, and the front end of the second-stage core pulling device is provided with an insert needle sleeved on the inner needle. The invention can realize two-stage coaxial gradual-receding core-pulling, has low rejection rate, low production cost, simple demoulding structure and reliable and stable core-pulling, ensures that the product is completely demoulded, is not damaged and is convenient to assemble.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a two-stage core-pulling mechanism of an injection mold.
[ background of the invention ]
More and more plastic products appear in daily life, along with the rapid development of the plastic industry and the continuous improvement of the strength quality and the like of general and engineering plastics. Plastic products are processed by an injection mold, and generally, the plastic mold consists of a movable mold and a fixed mold, wherein the movable mold is arranged on a movable template of the injection molding machine, and the fixed mold is arranged on a fixed template of the injection molding machine. And when the mold is opened, the movable mold is separated from the fixed mold so as to take out a plastic product. The quality of the injection mold also affects the quality of plastic products to a certain extent, and good mold design and processing are very important.
In some injection molds, multi-stage core pulling is required, and then the product is ejected out of the mold by an ejection mechanism for demolding. The multi-stage core pulling mechanism in the prior art has the advantages of high rejection rate, high production cost, very complex demoulding structure, difficult demoulding and even product damage.
[ summary of the invention ]
The invention aims to overcome the defects of the prior art and provides the secondary core pulling mechanism of the injection mold, which has the advantages of low rejection rate, low production cost, simple demolding structure, reliable core pulling, complete demolding of products, no damage and convenient assembly.
The purpose of the invention is realized as follows:
the utility model provides an injection mold's second grade mechanism of loosing core, its characterized in that includes the base, the rear end of base is connected with drive arrangement, drive arrangement's front end is connected with the first order and looses the core device, the front end of the first order device of loosing core is equipped with the inner needle, the front end of the first order device of loosing core is equipped with the second grade and looses core the device, the first order device of loosing core can drive the second grade after moving certain distance backward and loose core the device and move backward, the second grade is loosed core the device front end and is equipped with the inlay needle of cover on the inner needle.
The secondary core-pulling mechanism of the injection mold is characterized in that the primary core-pulling device comprises a T-shaped block connected with the driving device, the T-shaped block is inserted into a sliding groove of a sliding block, the front end of the sliding block is connected with an inner needle fixing seat, an inner needle is fixed at the front end of the inner needle fixing seat, the secondary core-pulling device comprises a front fixing seat connected with the sliding block, and an insert needle is fixed at the front end of the front fixing seat; a plug screw and a reset push rod are connected between the front fixing seat and the sliding block, an inner needle connecting rod is connected between the inner needle fixing seat and the sliding block, and the sliding block is provided with a reverse push rod which pushes the inner needle fixing seat to move forwards.
The two-stage core pulling mechanism of the injection mold is characterized in that the driving device is an oil cylinder, the front end of an oil cylinder rod of the oil cylinder is connected with a connecting rod, the diameter of the connecting rod is smaller than that of the oil cylinder rod, the front end of the connecting rod is provided with a connecting head, and the T-shaped block is provided with a T-shaped groove for inserting the connecting head.
As above-mentioned injection mold's second grade mechanism of loosing core, its characterized in that base is L shape, including the end diaphragm, end diaphragm one side is connected with the riser, and end diaphragm opposite side outer wall is equipped with the mounting, is equipped with the mounting groove on the riser, is equipped with the step in the mounting groove, is equipped with the fixed orifices that is used for fixed cylinder on the step.
The invention has the beneficial effects that:
the driving device firstly drives the first-stage core-pulling device to move backwards for a certain distance to realize first-stage core-pulling, and then drives the second-stage core-pulling device to move backwards to realize second-stage core-pulling. The invention can realize two-stage coaxial gradual-receding core-pulling, has low rejection rate, low production cost, simple demoulding structure and reliable and stable core-pulling, ensures that the product is completely demoulded, is not damaged and is convenient to assemble.
[ description of the drawings ]
FIG. 1 is a block diagram of the present invention;
FIG. 2 is an exploded view of the structure of the present invention;
fig. 3 is an exploded view of the structure of the present invention.
[ detailed description ] embodiments
The invention will be further described with reference to the accompanying drawings in which:
the utility model provides an injection mold's second grade mechanism of loosing core, it includes base 1, base 1's rear end is connected with drive arrangement 2, drive arrangement 2's front end is connected with the first order and looses core device 3, the front end that the first order loosed core device 3 is equipped with interior needle 31, the front end that the first order loosed core device 3 is equipped with second grade and looses core device 4, the first order looses core device and can drive the second grade after the certain distance backward and loose core the device and remove backward, 4 front ends of second grade loose core device are equipped with the inlay needle 41 of cover on interior needle. The inner needle 31 and the insert needle 41 are preferably coaxially arranged, the driving device 2 of the invention firstly drives the first-stage core-pulling device to move backwards for a certain distance to realize first-stage core-pulling, and then drives the second-stage core-pulling device 4 to move backwards to realize second-stage core-pulling, so that the invention can realize second-stage coaxial gradual-retreating core-pulling, has low rejection rate, low production cost, simple demoulding structure, reliable and stable core-pulling, ensures that the product is completely demoulded without being damaged, and is convenient to assemble.
The first-stage core-pulling device 3 comprises a T-shaped block 32 connected with a driving device 2, the T-shaped block 32 is inserted into a sliding groove 331 of a sliding block 33, the front end of the sliding block 33 is connected with an inner needle fixing seat 34, an inner needle 31 is fixed at the front end of the inner needle fixing seat 34, the second-stage core-pulling device 4 comprises a front fixing seat 42 connected with the sliding block 33, and an insert needle 41 is fixed at the front end of the front fixing seat 42; a stop screw 43 and a reset push rod 44 are connected between the front fixing seat 42 and the sliding block 33, an inner needle connecting rod 45 is connected between the inner needle fixing seat 34 and the sliding block 33, and the sliding block 33 is provided with a reverse push rod 46 which pushes the inner needle fixing seat 34 to move forwards. 2 pulling T-shaped piece 32 of drive arrangement backward moves, also stimulate slider 33 backward and remove, slider 33 drives interior needle fixing base 16 backward through interior needle connecting rod 45 this moment, just also drive interior needle 31 backward and remove, realize moving for the first time and loose the core, after drive arrangement 2 pulling T-shaped piece 32 backward pulling certain distance, because fill in the reason of beating screw 43, slider 33 drives preceding fixing base 42 and drives again and inlays needle 41 backward movement, realize that the secondary motion is loosed the core, break away from the product completely at last.
The driving device 2 of the invention is an oil cylinder, the front end of an oil cylinder rod 21 of the oil cylinder is connected with a connecting rod 22, the diameter of the connecting rod 22 is smaller than that of the oil cylinder rod 21, the front end of the connecting rod 22 is provided with a connecting head 23, and a T-shaped block 32 is provided with a T-shaped groove 321 for inserting the connecting head 23.
The base 1 is L-shaped and comprises a bottom transverse plate 11, one side of the bottom transverse plate 11 is connected with a vertical plate 12, the outer wall of the other side of the bottom transverse plate 11 is provided with a fixing piece 13, the vertical plate 12 is provided with a mounting groove 14, an oil cylinder rod 21 can penetrate through the mounting groove 14, a step 15 is arranged in the mounting groove 14, and a fixing hole 16 for fixing an oil cylinder is arranged on the step 15. Not only can be with the firm fixed of base to moulding plastics on the utensil, can also make when loosing core the process, more stable loosing core, it is also convenient to install.
Claims (4)
1. The utility model provides an injection mold's second grade mechanism of loosing core, its characterized in that includes base (1), the rear end of base (1) is connected with drive arrangement (2), the front end of drive arrangement (2) is connected with first level device (3) of loosing core, the front end of first level device (3) of loosing core is equipped with interior needle (31), the front end of first level device (3) of loosing core is equipped with second level device (4) of loosing core, first level device of loosing core can drive the second level after the certain distance of backward movement and loose core the device and remove core backward, second level device (4) front end of loosing core is equipped with inlay needle (41) of cover on interior needle.
2. The secondary core-pulling mechanism of the injection mold is characterized in that the primary core-pulling device (3) comprises a T-shaped block (32) connected with the driving device (2), the T-shaped block (32) is inserted into a sliding groove (331) of a sliding block (33), the front end of the sliding block (33) is connected with an inner needle fixing seat (34), an inner needle (31) is fixed at the front end of the inner needle fixing seat (34), the secondary core-pulling device (4) comprises a front fixing seat (42) connected with the sliding block (33), and an insert needle (41) is fixed at the front end of the front fixing seat (42); a plug screw (43) and a reset push rod (44) are connected between the front fixing seat (42) and the sliding block (33), an inner needle connecting rod (45) is connected between the inner needle fixing seat (34) and the sliding block (33), and the sliding block (33) is provided with a reverse push rod (46) which pushes the inner needle fixing seat (34) to move forwards.
3. The two-stage core pulling mechanism of the injection mold according to claim 1, wherein the driving device (2) is an oil cylinder, a connecting rod (22) is connected to the front end of an oil cylinder rod (21) of the oil cylinder, the diameter of the connecting rod (22) is smaller than that of the oil cylinder rod (21), a connecting head (23) is arranged at the front end of the connecting rod (22), and a T-shaped block (32) is provided with a T-shaped groove (321) for the connecting head (23) to be inserted into.
4. The two-stage core pulling mechanism of the injection mold according to claim 1, wherein the base (1) is L-shaped and comprises a bottom transverse plate (11), one side of the bottom transverse plate (11) is connected with a vertical plate (12), a fixing part (13) is arranged on the outer wall of the other side of the bottom transverse plate (11), an installation groove (14) is formed in the vertical plate (12), a step (15) is arranged in the installation groove (14), and a fixing hole (16) for fixing the oil cylinder is formed in the step (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165561.6A CN110893668A (en) | 2019-11-25 | 2019-11-25 | Two-stage core-pulling mechanism of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165561.6A CN110893668A (en) | 2019-11-25 | 2019-11-25 | Two-stage core-pulling mechanism of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110893668A true CN110893668A (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911165561.6A Pending CN110893668A (en) | 2019-11-25 | 2019-11-25 | Two-stage core-pulling mechanism of injection mold |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203004235U (en) * | 2012-11-14 | 2013-06-19 | 亿和精密工业（苏州）有限公司 | Secondary core pulling mechanism |
| CN206796435U (en) * | 2017-03-31 | 2017-12-26 | 宁波神通模塑有限公司 | A kind of secondary core extracting structure for preventing core from retreating |
| CN110421796A (en) * | 2019-08-27 | 2019-11-08 | 厦门新倍鑫模具有限公司 | A kind of mould secondary pulled core structure of substitution sliding block hinge dental structure |
| CN211683286U (en) * | 2019-11-25 | 2020-10-16 | 中山市华志模具精密设备科技有限公司 | Core pulling mechanism of injection mold |
-
2019
- 2019-11-25 CN CN201911165561.6A patent/CN110893668A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203004235U (en) * | 2012-11-14 | 2013-06-19 | 亿和精密工业（苏州）有限公司 | Secondary core pulling mechanism |
| CN206796435U (en) * | 2017-03-31 | 2017-12-26 | 宁波神通模塑有限公司 | A kind of secondary core extracting structure for preventing core from retreating |
| CN110421796A (en) * | 2019-08-27 | 2019-11-08 | 厦门新倍鑫模具有限公司 | A kind of mould secondary pulled core structure of substitution sliding block hinge dental structure |
| CN211683286U (en) * | 2019-11-25 | 2020-10-16 | 中山市华志模具精密设备科技有限公司 | Core pulling mechanism of injection mold |
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