CN113618979A - Convenient ejecting oblique top subassembly - Google Patents
Convenient ejecting oblique top subassembly Download PDFInfo
- Publication number
- CN113618979A CN113618979A CN202110888813.9A CN202110888813A CN113618979A CN 113618979 A CN113618979 A CN 113618979A CN 202110888813 A CN202110888813 A CN 202110888813A CN 113618979 A CN113618979 A CN 113618979A
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- CN
- China
- Prior art keywords
- ejector rod
- straight
- rod
- ejection
- ejector
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—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
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an inclined ejector assembly convenient to eject, which is characterized by comprising a guide block fixedly arranged, an inclined ejector rod and a straight ejector rod which are arranged in an intersecting state, wherein the inclined ejector rod and the straight ejector rod are provided with matched grains; a sliding channel matched with the inclined ejector rod and the straight ejector rod is arranged in the guide block, and an inclined ejector head is arranged on the inclined ejector rod. The invention has the advantages that the ejection stability of the pitched roof is improved, the space occupied by the pitched roof mechanism in the height direction is reduced, and the ejection efficiency and the ejection stability of the pitched roof are improved; the lifting rotation of the straight ejector rod is realized through the arrangement of the transmission threads, so that the ejector rod can be further driven to stretch out through the threads when the straight ejector rod goes up and down, the ejection efficiency of the pitched roof is improved, the length of the straight ejector rod which is actually needed can be reduced compared with a rack structure, the space occupied by the straight ejector rod is reduced, and the stability in the radial direction is improved.
Description
Technical Field
The application relates to the technical field of mold lifter mechanisms, in particular to a conveniently ejected lifter assembly.
Background
At present, because of the limitation of certain products, the demolding distance and angle of the inclined ejector rod are required to be very large when the mold is demolded; the angle of the traditional oblique ejector rod does not exceed 13 degrees theoretically, and an oblique ejector auxiliary rod is added when the angle exceeds 13 degrees. Under the condition that the inclined ejection auxiliary rod exists, the angle cannot exceed 20 degrees in the limit condition, the inclined ejection auxiliary rod occupies more die space, the die is easy to damage in mass production, the inclined ejection rod is broken, the ejection is not smooth and abnormal, the mass production is seriously affected and even cannot be realized, the time required for maintenance is long, and the mass production of products is delayed.
For example, in chinese patent literature, patent No. CN2014205847490 discloses a mold having an inclined top mechanism in 2015, which includes an upper mold plate, a lower mold plate, a top plate located below the lower mold plate, a bottom plate located below the top plate, a top seat inclined on the top plate, a sliding guide plate sliding on the top seat inclined, an inclined top rod on the sliding guide plate, the inclined top rod penetrating into the lower mold plate in an inclined direction, an inclined top block on the upper end of the inclined top rod, an auxiliary rod on the sliding guide plate, the auxiliary rod being parallel to the inclined top rod, the auxiliary rod penetrating into the lower mold plate in an inclined direction, the auxiliary rod penetrating into the bottom plate in an inclined direction.
The existing technology has the disadvantages that the inclined top and the assembly thereof occupy larger space and are inconvenient to maintain.
Disclosure of Invention
Based on the defects in the prior art, the invention provides the lifter assembly convenient to eject, which can improve the ejection stability of the lifter, reduce the space occupied by the lifter mechanism in the height direction and improve the ejection efficiency and the ejection stability of the lifter.
In order to achieve the above object, the present invention adopts the following technical solutions.
An inclined ejection assembly convenient to eject is characterized by comprising a guide block which is fixedly arranged, an inclined ejection rod and a straight ejection rod which are arranged in an intersecting state, wherein the inclined ejection rod and the straight ejection rod are provided with matching grains; a sliding channel matched with the inclined ejector rod and the straight ejector rod is arranged in the guide block, and an inclined ejector head is arranged on the inclined ejector rod.
The straight ejector rod and the inclined ejector rod are mutually limited, the ejection stability of the inclined ejector can be improved, and the ejection efficiency is high.
Preferably, the matching lines are insections which are arranged perpendicular to the axis of the straight ejector rod. The straight ejector rod and the inclined ejector rod are meshed and synchronously driven through the insections, and the inclined ejector rod is stably ejected.
Preferably, the sliding channel comprises a first channel matched with the inclined ejector rod and a second channel matched with the straight ejector rod, the first channel and the second channel are communicated in an intersecting manner, and the end parts of the first channel and the second channel are respectively provided with a transition arc. The first channel and the second channel limit the inclined ejector rod and the straight ejector rod, and ensure the lifting stability of the inclined ejector rod and the straight ejector rod; the straight ejector rod and the inclined ejector rod can slide in the sliding channel conveniently through the transition arc, and the sliding stability is improved.
Preferably, the lifter mechanism further comprises a limiting block which is fixedly arranged relative to the guide block, the matching lines comprise threads on the upper section of the straight ejector rod and helical teeth on the oblique ejector rod, the lower section of the straight ejector rod is provided with transmission threads, and a transmission hole matched with the transmission threads is formed in the limiting block. Through screw thread drive skewed tooth, can play the stable transmission effect like the rack, can realize the lift rotation of straight ejector pin through setting up of transmission screw thread simultaneously to can also further drive the ejector pin through the screw thread and stretch out when straight ejector pin goes up and down, thereby improve the ejecting efficiency of oblique top, compare the rack construction and can reduce the length of straight ejector pin actual need, thereby reduce the space that straight ejector pin occupy, improve at radial stability.
Preferably, the lower end of the straight ejector rod extends out of the lower end of the limiting block. The straight ejector pin can direct drive at the stopper lower extreme, and is ejecting convenient.
Preferably, the lower end of the straight ejector rod is provided with a connecting ring protruding outwards, the transmission threads are arranged on the wall surface of the connecting ring, the transmission holes are internally provided with matched threads matched with the transmission threads, the upper end of each transmission hole is provided with a sealing ring, and the inner diameter of the sealing ring is matched with the diameter of the straight ejector rod. The transmission screw thread is arranged through the transmission ring, so that not only can the spiral lifting action of the straight ejector rod be ensured, but also the interference between the straight ejector rod with the screw thread and the transmission hole can be prevented, and the motion reliability of the straight ejector rod is ensured; the seal ring forms spacing, prevents that straight ejector pin from excessively moving, guarantees the reliability of oblique top mechanism.
Preferably, the number of the inclined ejector rods is two, the two inclined ejector rods are arranged in parallel, and the two inclined ejector rods are arranged on two sides of the straight ejector rod. Through the cooperation of two oblique ejector pins, play the fixed action of butt clamp, the tooth can be prevented jumping between oblique ejector pin and the straight ejector pin to the combination of both, improves straight ejector pin thread drive's reliability.
Preferably, two ends of the two oblique ejector rods are respectively provided with an integrally fixed connecting arm, and the upper ends of the oblique ejector rods are fixedly connected with the oblique ejector heads. The connecting arm is arranged to enable the two oblique ejector rods to form a whole, the integrity of the oblique ejector rods is better, the structural strength is higher, and the stability is good.
The invention has the following beneficial effects: the ejection stability of the pitched roof is improved, the space occupied by the pitched roof mechanism in the height direction is reduced, and the ejection efficiency and the ejection stability of the pitched roof are improved; the lifting rotation of the straight ejector rod is realized through the arrangement of the transmission threads, so that the ejector rod can be further driven to stretch out through the threads when the straight ejector rod goes up and down, the ejection efficiency of the pitched roof is improved, the length of the straight ejector rod which is actually needed can be reduced compared with a rack structure, the space occupied by the straight ejector rod is reduced, and the stability in the radial direction is improved.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the invention.
FIG. 2 is a schematic view of the structure of example 1 in use.
Fig. 3 is a schematic view of the internal structure of the guide block in embodiment 1.
Fig. 4 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a third embodiment of the present invention.
Fig. 6 is a schematic structural view of the guide block in the embodiment shown in fig. 5.
Fig. 7 is a schematic structural view of the lifter bar and the lifter head in the embodiment shown in fig. 5.
In the figure: the guide block 1, the oblique ejector rod 2, the straight ejector rod 3, the insection 4, the first channel 5, the second channel 6, the oblique ejector head 7, the limiting block 8, the oblique teeth 9, the transmission threads 10, the connecting ring 11, the transmission holes 12 and the matching threads 13 are matched with the connecting arm 15 of the sealing ring 14.
Detailed Description
The invention is further illustrated with reference to the figures and the specific embodiments.
In the case of the example 1, the following examples are given,
as shown in fig. 1 to 3, the lifter assembly convenient to eject comprises a guide block 1 fixedly arranged, an inclined ejector rod 2 and a straight ejector rod 3 arranged in an intersecting state, wherein the inclined ejector rod 2 and the straight ejector rod 3 are provided with matching lines; the matching lines adopt insections 4 which are arranged perpendicular to the axis of the straight ejector rod 3. A sliding channel matched with the inclined ejector rod 2 and the straight ejector rod 3 is arranged in the guide block 1, and an inclined ejector head 7 is arranged on the inclined ejector rod 2. The upper end of the oblique ejector rod 2 is fixedly connected with the oblique ejector head 7. The sliding channel comprises a first channel 5 matched with the inclined ejector rod 2 and a second channel 6 matched with the straight ejector rod 3, the first channel 5 and the second channel 6 are communicated in an intersecting manner, and the end parts of the first channel 5 and the second channel 6 are respectively provided with a transition arc. Can know from fig. 3 that the cross section of first passageway 5 and second passageway 6 is the cuboid, consequently oblique ejector pin 2 and straight ejector pin 3 are the rectangular shape structure of complex, and the cross section of actual oblique ejector pin 2 and straight ejector pin 3 can also set up to fan-shaped, semi-circular or other shapes, only need remain insection 4 place plane can, this application no longer expandes the repeated description.
The straight ejector rod 3 and the inclined ejector rod 2 are limited, so that the ejection stability of the inclined ejector can be improved, and the ejection efficiency is high; the first channel 5 and the second channel 6 limit the inclined ejector rod 2 and the straight ejector rod 3, and ensure the lifting stability of the inclined ejector rod 2 and the straight ejector rod 3; the straight ejector rod 3 and the inclined ejector rod 2 can slide in the sliding channel conveniently through the transition arc, and the sliding stability is improved.
In the case of the example 2, the following examples are given,
an injection mold rack inclined top mechanism is shown in fig. 4, and the difference between the embodiment 2 and the embodiment 1 is that: the pitched roof mechanism further comprises a limiting block 8 which is fixedly arranged relative to the guide block 1, the matching grains comprise threads on the upper section of the straight ejector rod 3 and helical teeth 9 on the pitched ejector rod 2, the straight ejector rod 3 adopts a cylindrical rod, and the pitched ejector rod 2 adopts a rectangular long strip-shaped structure with a rectangular cross section. It is also necessary to design the guide block 1 adaptively according to the shapes of the straight jack 3 and the oblique jack 2. The lower section of the straight ejector rod 3 is provided with a transmission thread 10, the straight ejector rod 3 is provided with a connecting ring 11 protruding outwards, the transmission thread 10 is arranged on the wall surface of the connecting ring 11, and the upper part of the connecting ring 11 is the upper section of the straight ejector rod 3. A transmission hole 12 matched with the transmission thread 10 is arranged in the limiting block 8. The inside of the transmission hole 12 is provided with a matching thread 13 matching with the transmission thread 10, the upper end of the transmission hole 12 is provided with a seal ring 14, the lower end of the transmission hole 12 is also provided with a seal ring 14, and the inner diameter of the seal ring 14 is matched with the diameter of the straight ejector rod 3. The lower end of the slide block extends out of the lower end of the limiting block 8.
The helical teeth 9 are driven by the threads, so that a rack-like stable transmission effect can be achieved, the straight ejector rod 3 can be lifted and rotated by the aid of the transmission threads 10, the ejector rod can be further driven to extend out by the threads while the straight ejector rod 3 is lifted, ejection efficiency of the helical ejector is improved, the length of the straight ejector rod 3 which is actually required can be reduced compared with a rack structure, space occupied by the straight ejector rod 3 is reduced, and radial stability is improved; the transmission screw thread 10 is arranged on the transmission ring, so that not only can the spiral lifting action of the straight ejector rod 3 be ensured, but also the interference between the straight ejector rod 3 with the screw thread and the transmission hole 12 can be prevented, and the motion reliability of the straight ejector rod 3 is ensured; the sealing ring 14 forms a limit position, prevents the straight ejector rod 3 from moving excessively, and ensures the reliability of the inclined ejector mechanism.
In the case of the example 3, the following examples are given,
an injection mold rack lifter mechanism, as shown in fig. 5 to 7, embodiment 3 is different from embodiment 2 in that: the two inclined ejector rods 2 are arranged in parallel, and the two inclined ejector rods 2 are arranged on two sides of the straight ejector rod 3. The second channel 6 in the guide block 1 is also provided with two corresponding to the two inclined mandrils 2. Two ends of the two inclined ejector rods 2 are respectively provided with an integrally fixed connecting arm 15, and the upper ends of the inclined ejector rods 2 are fixedly connected with the inclined ejector heads 7. Through the cooperation of two oblique ejector pins 2, play the fixed action of butt clamp, both combinations can prevent to jump the tooth between oblique ejector pin 2 and the straight ejector pin 3, improve the reliability of straight 3 screw thread transmission of ejector pin.
Claims (8)
1. An inclined ejection assembly convenient to eject is characterized by comprising a guide block which is fixedly arranged, an inclined ejection rod and a straight ejection rod which are arranged in an intersecting state, wherein the inclined ejection rod and the straight ejection rod are provided with matching grains; a sliding channel matched with the inclined ejector rod and the straight ejector rod is arranged in the guide block, and an inclined ejector head is arranged on the inclined ejector rod.
2. The lifter assembly convenient to eject of claim 1, wherein the matching lines are insections arranged perpendicular to the axis of the straight ejector rod.
3. The lifter assembly convenient for ejection according to claim 1, wherein the sliding channel comprises a first channel matched with the lifter and a second channel matched with the straight lifter, the first channel and the second channel are communicated in an intersecting manner, and the end parts of the first channel and the second channel are respectively provided with a transition arc.
4. The lifter assembly convenient to eject according to claim 1, wherein the lifter mechanism further comprises a limiting block fixedly arranged relative to the guide block, the matching lines comprise threads on the upper section of the straight ejector rod and helical teeth on the inclined ejector rod, the lower section of the straight ejector rod is provided with transmission threads, and a transmission hole matched with the transmission threads is formed in the limiting block.
5. The lifter assembly convenient to eject of claim 4, wherein the lower end of the straight ejector rod extends outside the lower end of the stopper.
6. The lifter assembly convenient for ejection according to claim 4 or 5, wherein the lower end of the straight ejector rod is provided with a connecting ring protruding outwards, the transmission thread is arranged on the wall surface of the connecting ring, the transmission hole is internally provided with a matching thread matching with the transmission thread, the upper end of the transmission hole is provided with a sealing ring, and the inner diameter of the sealing ring is matched with the diameter of the straight ejector rod.
7. The angle ejector assembly convenient for ejection as claimed in claim 4, wherein the angle ejector rod is provided with two angle ejector rods, the two angle ejector rods are arranged in parallel, and the two angle ejector rods are arranged on two sides of the straight ejector rod.
8. The angle ejector assembly convenient for ejection as claimed in claim 7, wherein the two angle ejector rods are respectively provided at both ends thereof with integrally fixed connecting arms, and the upper ends of the angle ejector rods are fixedly connected with the angle ejector heads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110888813.9A CN113618979B (en) | 2021-08-02 | 2021-08-02 | Conveniently-ejected inclined ejection assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110888813.9A CN113618979B (en) | 2021-08-02 | 2021-08-02 | Conveniently-ejected inclined ejection assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113618979A true CN113618979A (en) | 2021-11-09 |
| CN113618979B CN113618979B (en) | 2023-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110888813.9A Active CN113618979B (en) | 2021-08-02 | 2021-08-02 | Conveniently-ejected inclined ejection assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN113618979B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115008698A (en) * | 2022-06-22 | 2022-09-06 | 深圳兴精科塑胶模具有限公司 | Super-large acceleration and deceleration angle pitched roof mechanism and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859107A (en) * | 2015-05-04 | 2015-08-26 | 宁波双林模具有限公司 | Rack inclined ejection core pulling demolding device of injection mold |
| CN208118220U (en) * | 2018-03-30 | 2018-11-20 | 骏艺精密模具（苏州）有限公司 | A kind of rack gear ramp-roof structure of mold |
| CN109910252A (en) * | 2019-05-05 | 2019-06-21 | 深圳市银宝山新科技股份有限公司 | A kind of pitched roof mechanism of mold |
| CN210082329U (en) * | 2019-06-11 | 2020-02-18 | 佛山市钜宏塑料制品有限公司 | Ejection mechanism of plastic injection mold |
| CN211763195U (en) * | 2019-12-26 | 2020-10-27 | 欧唐科技（深圳）有限公司 | Simple large-reverse-buckle oblique-sliding ejection mechanism |
| CN213500633U (en) * | 2020-09-08 | 2021-06-22 | 东莞市百通精密模具制造有限公司 | Rack inclined ejection mechanism for die |
-
2021
- 2021-08-02 CN CN202110888813.9A patent/CN113618979B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859107A (en) * | 2015-05-04 | 2015-08-26 | 宁波双林模具有限公司 | Rack inclined ejection core pulling demolding device of injection mold |
| CN208118220U (en) * | 2018-03-30 | 2018-11-20 | 骏艺精密模具（苏州）有限公司 | A kind of rack gear ramp-roof structure of mold |
| CN109910252A (en) * | 2019-05-05 | 2019-06-21 | 深圳市银宝山新科技股份有限公司 | A kind of pitched roof mechanism of mold |
| CN210082329U (en) * | 2019-06-11 | 2020-02-18 | 佛山市钜宏塑料制品有限公司 | Ejection mechanism of plastic injection mold |
| CN211763195U (en) * | 2019-12-26 | 2020-10-27 | 欧唐科技（深圳）有限公司 | Simple large-reverse-buckle oblique-sliding ejection mechanism |
| CN213500633U (en) * | 2020-09-08 | 2021-06-22 | 东莞市百通精密模具制造有限公司 | Rack inclined ejection mechanism for die |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115008698A (en) * | 2022-06-22 | 2022-09-06 | 深圳兴精科塑胶模具有限公司 | Super-large acceleration and deceleration angle pitched roof mechanism and method |
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| Publication number | Publication date |
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| CN113618979B (en) | 2023-04-18 |
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