CN107914368B - Slide secondary demoulding mechanism and demoulding method thereof - Google Patents
Slide secondary demoulding mechanism and demoulding method thereof Download PDFInfo
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- CN107914368B CN107914368B CN201711424895.1A CN201711424895A CN107914368B CN 107914368 B CN107914368 B CN 107914368B CN 201711424895 A CN201711424895 A CN 201711424895A CN 107914368 B CN107914368 B CN 107914368B
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- pushing
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- 230000007246 mechanism Effects 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000000670 limiting effect Effects 0.000 claims abstract description 53
- 230000009471 action Effects 0.000 claims abstract description 22
- 230000007704 transition Effects 0.000 claims description 42
- 238000003756 stirring Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 240000007643 Phytolacca americana Species 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
The invention discloses a slide secondary demoulding mechanism and a demoulding method thereof, wherein the slide secondary demoulding mechanism comprises a slide seat, a guide block, a push block, a slide insert, a floating block, a limiting block and a shifting block, wherein a first through hole is formed in the push block, the guide block penetrates through the first through hole and is in sliding fit with the push block, and two ends of the guide block are respectively connected with the slide seat and the slide insert; the floating block and the shifting block are arranged on the bottom surface of the pushing block, the floating block is in limit clamping with the pushing block, the shifting block is connected with the pushing block, a shifting lug is arranged on the side surface of the floating block, and the shifting block is matched with the shifting lug; the limiting block is arranged on the bottom surface of the row seat and is in limiting connection with the bottom surface of the floating block. The slide secondary demoulding mechanism solves the control of the ejection action of the push block, so that a product can be smoothly pushed out, the mould structure is simplified, and the degree of automation is improved.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to a slide secondary demolding mechanism and a demolding method thereof.
Background
The demolding mode of the injection molding product has important influence on the quality and production efficiency of the plastic part, and the demolding of the product mainly comprises four modes of manual demolding, hydraulic demolding, mechanical demolding and pneumatic demolding according to power sources; among them, the motorized demolding is most common, and it uses the pushing action generated by the relative movement of the mold and the pushing-out part to automatically pull out the plastic part.
In the mode, a demolding mechanism on a mold is utilized to convert the mold opening force into a demolding force in the mold opening process; the device has the advantages of large demoulding force, reliable action, high production efficiency and low manual labor intensity; however, the disadvantage is that the mold is complicated in structure, the demolding distance is limited by the demolding travel, and a special demolding mechanism is generally required.
Disclosure of Invention
The invention aims to provide a slide secondary demoulding mechanism and a demoulding method thereof, wherein the slide secondary demoulding mechanism solves the control of ejection actions of an ejector block, so that a product can be smoothly ejected, the mould structure is simplified, and the degree of automation is improved.
The technical scheme is as follows:
the slide secondary demoulding mechanism comprises a slide seat, a guide block, a push block, a slide insert, a floating block, a limiting block and a shifting block, wherein a first through hole is formed in the push block, the guide block penetrates through the first through hole and is in sliding fit with the push block, and two ends of the guide block are respectively connected with the slide seat and the slide insert;
the floating block and the shifting block are arranged on the bottom surface of the pushing block, the floating block is in limit clamping with the pushing block, the shifting block is connected with the pushing block, a shifting lug is arranged on the side surface of the floating block, and the shifting block is matched with the shifting lug;
the limiting block is arranged on the bottom surface of the row seat and is in limiting connection with the bottom surface of the floating block.
The bottom surface of the pushing block is provided with a clamping groove, the top surface of the floating block is provided with a buckle, and the buckle is matched with the clamping groove.
The floating block is also provided with a pin shaft, and is hinged and fixed through the pin shaft.
The bottom surface of the floating block is provided with a first notch, and the limiting block is matched with the first notch.
And a limiting spring is arranged on the bottom surface of the floating block.
The lower bottom surface of the shifting block is provided with a first shifting boss and a first groove, the top surface of the shifting lug is provided with a second groove and a second shifting boss, the first shifting boss is correspondingly matched with the second groove, and the first groove is correspondingly matched with the second shifting boss.
The first stirring lug boss and the first stirring groove are provided with a first transition inclined plane, the second stirring lug boss and the second stirring lug boss are provided with a second transition inclined plane, and a gap is reserved between the first transition inclined plane and the second transition inclined plane.
The first transition inclined plane corresponds to the gradient of the second transition inclined plane, and the gradients of the first transition inclined plane and the second transition inclined plane are 40-100%.
The demolding method of the row-position secondary demolding mechanism is characterized by comprising the following steps of,
when demoulding is carried out once, the slide seat drives the slide insert and the limiting block to move in a first direction, the limiting block supports the floating block, the floating block buckles the pushing block, the pushing block is not moved, the pushing block generates pushing action relative to the slide insert, the product is pushed out for a corresponding distance, namely, the pushing block generates a primary ejection action, and one demoulding is completed;
when demolding is performed for the second time, after the slide seat drives the limiting block to move a corresponding distance in the first direction, the limiting block is not contacted with the floating block, and the floating block is not limited by the limiting block; when the slide seat continues to move towards the first direction, the poking block is contacted with the poking convex block on the side surface of the floating block, the floating block is poked by the poking block, the floating block does not buckle the pushing block any more, the pushing block moves towards the first direction along with the slide seat, namely, the pushing block generates a secondary ejection action, secondary demoulding is completed, and a product is smoothly and stably pushed out.
It should be noted that:
the foregoing "first and second" do not denote a particular quantity or order, but rather are used to distinguish one name from another.
The advantages and principles of the invention are described below:
1. the secondary slide demoulding mechanism comprises a slide seat, a guide block, a push block, a slide insert, a floating block, a limiting block and a shifting block, wherein the slide seat is driven by an oil cylinder and can drive a slide to move, the push block is used for pushing out a product, and the position of the floating block is limited by the limiting block in the primary ejection demoulding process, so that the limiting effect is exerted on the push block; the shifting block is used for shifting the floating block, and does not limit the pushing block any more so as to realize the secondary ejection effect; the limiting block fixed on the row seat can move along with the movement of the row seat;
when demoulding is carried out once, the slide seat drives the slide insert and the limiting block to move in a first direction, the limiting block supports the floating block, the floating block buckles the pushing block, the pushing block is not moved, the pushing block generates pushing action relative to the slide insert, the product is pushed out for a corresponding distance, namely, the pushing block generates a primary ejection action, and one demoulding is completed;
when demolding is performed for the second time, after the slide seat drives the limiting block to move a corresponding distance in the first direction, the limiting block is not contacted with the floating block, and the floating block is not limited by the limiting block; when the slide seat continues to move towards the first direction, the poking block is contacted with the poking convex block on the side surface of the floating block, the floating block is poked by the poking block, the floating block does not buckle the pushing block any more, the pushing block moves towards the first direction along with the slide seat, namely, the pushing block generates a secondary ejection action, secondary demoulding is completed, and a product is smoothly and stably pushed out.
The slide secondary demoulding mechanism solves the control of the ejection action of the push block, so that a product can be smoothly pushed out, the mould structure is simplified, and the degree of automation is improved.
2. The bottom surface of the pushing block is provided with a clamping groove, the top surface of the floating block is provided with a clamping buckle, and the clamping buckle is matched and clamped with the clamping groove, so that the floating block can be more stably buckled with the pushing block.
3. The floating block is provided with a pin shaft, and when the floating block is not limited by the limiting block any more, the floating block can rotate downwards around the pin shaft.
4. The bottom surface of the floating block is provided with a first notch, and the limiting block is matched with the first notch, so that the limiting block supports the floating block to be more stable.
5. The bottom surface of the floating block is provided with a limit spring, when the die assembly and the primary ejection are in a finished state, the floating block can well buckle the pushing block through the resilience force of the limit spring, and when the secondary ejection is performed, the floating block starts to receive the force of the shifting block, so that the floating block is shifted, the limit spring is compressed, and the floating block rotates downwards.
6. The lower bottom surface of the shifting block is provided with a first shifting lug boss and a first groove, the top surface of the shifting lug boss is provided with a second groove and a second shifting lug boss, the first shifting lug boss is correspondingly matched with the second groove, and the first groove is correspondingly matched with the second shifting lug boss, so that the shifting block can better shift the floating block.
7. The first stirring lug boss and the first stirring groove are provided with a first transition inclined plane, the second stirring lug boss and the second stirring lug boss are provided with a second transition inclined plane, a gap is reserved between the first transition inclined plane and the second transition inclined plane, so that a secondary slide gap is reserved for stirring the floating block by the stirring block, and the product can be stably and smoothly pushed out for demolding.
8. The first transition inclined plane corresponds with the slope of the second transition inclined plane, and the slope of the first transition inclined plane and the slope of the second transition inclined plane are 40% to 100%, so that the shifting block can shift the floating block better, the products can be pushed out smoothly and demoulding is ensured, and the degree of automation is improved.
Drawings
FIG. 1 is a perspective view of a secondary stripping mechanism for an embodiment of the present invention.
FIG. 2 is a side view of a secondary stripping mechanism for an embodiment of the present invention.
FIG. 3 is a sectional view showing a mold clamping state of the secondary mold release mechanism according to the embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a completed state of the primary ejection operation of the secondary ejection mechanism according to the embodiment of the present invention.
FIG. 5 is a sectional view showing a secondary ejection start state of the secondary ejection mechanism according to the embodiment of the present invention.
Reference numerals illustrate:
10. slide seat, 20, guide block, 30, push block, 31, clamping groove, 40, slide insert, 50, floating block, 51, toggle convex block, 511, second groove, 512, second toggle convex block, 513, second transition inclined plane, 52, buckle, 53, pin shaft, 54, first notch, 60, limit block, 70, toggle block, 71, first toggle convex block, 72, first groove, 73, first transition inclined plane, 80, limit spring, 90 and product.
Detailed Description
The following describes embodiments of the present invention in detail.
As shown in fig. 1 to 5, the slide secondary demolding mechanism comprises a slide seat 10, a guide block 20, a push block 30, a slide insert 40, a floating block 50, a limiting block 60 and a shifting block 70, wherein a first through hole is formed in the push block 30, the guide block 20 penetrates through the first through hole and is in sliding fit with the push block 30, and two ends of the guide block 20 are respectively connected with the slide seat 10 and the slide insert 40;
the floating block 50 and the shifting block 70 are arranged on the bottom surface of the push block 30, the floating block 50 is in limit clamping with the push block 30, the shifting block 70 is connected with the push block 30, a shifting lug 51 is arranged on the side surface of the floating block 50, and the shifting block 70 is matched with the shifting lug 51;
the limiting block 60 is disposed on the bottom surface of the row seat 10 and is in limiting connection with the bottom surface of the slider 50.
Wherein, the bottom surface of the push block 30 is provided with a clamping groove 31 and a first notch 54, the top surface of the floating block 50 is provided with a buckle 52, the buckle 52 is matched with the clamping groove 31, and the limiting block 60 is matched with the first notch 54;
the floating block 50 is also provided with a pin shaft 53, and the floating block 50 is hinged and fixed through the pin shaft 53; a limit spring 80 is mounted on the bottom surface of the slider 50;
the lower bottom surface of the shifting block 70 is provided with a first shifting boss 71 and a first groove 72, the top surface of the shifting lug 51 is provided with a second groove 511 and a second shifting boss 512, the first shifting boss 71 is correspondingly matched with the second groove 511, and the first groove 72 is correspondingly matched with the second shifting boss 512; the first toggle boss 71 and the first toggle groove have a first transition inclined plane 73, the second toggle groove and the second toggle boss 512 have a second transition inclined plane 513, and a gap is reserved between the first transition inclined plane 73 and the second transition inclined plane 513;
the first transition slope 73 corresponds to the gradient of the second transition slope 513, and the gradients of the first transition slope 73 and the second transition slope 513 are 40% to 100%.
The demolding method of the row-position secondary demolding mechanism comprises the following steps,
when demoulding is carried out once, the slide seat 10 drives the slide insert 40 and the limiting block 60 to move in a first direction, the limiting block 60 supports the floating block 50, the floating block 50 buckles the push block 30, the push block 30 does not move, the push block 30 generates pushing-out action relative to the slide insert 40, the product 90 is pushed out by a corresponding distance, namely, the push block 30 generates one ejection action, and demoulding is completed once;
when demolding is performed for the second time, after the slide seat 10 drives the limiting block 60 to move a corresponding distance in the first direction, the limiting block 60 is not contacted with the floating block 50 any more, and the floating block 50 is not limited by the limiting block 60 any more; when the slide seat 10 continues to move in the first direction, the poking block 70 contacts with the poking lug 51 on the side surface of the floating block 50, the floating block 50 is poked by the force of the poking block 70, the floating block 50 does not buckle the pushing block 30 any more, the pushing block 30 moves along with the slide seat 10 in the first direction, namely, the pushing block 30 generates a secondary ejection action, secondary demolding is completed, and the product 90 is smoothly and stably pushed out.
Advantages or principles of this embodiment:
1. the secondary slide demoulding mechanism comprises a slide seat 10, a guide block 20, a push block 30, a slide insert 40, a floating block 50, a limiting block 60 and a shifting block 70, wherein the slide seat 10 is driven by an oil cylinder and can drive a slide to move, the push block 30 is used for pushing out a product 90, and the position of the floating block 50 is limited by the limiting block 60 in the primary ejection demoulding process, so that the limiting effect on the push block 30 is achieved; the shifting block 70 is used for shifting the floating block 50, and does not limit the pushing block 30 any more so as to realize a secondary ejection effect; the limiting block 60 fixed on the row seat 10 can move along with the movement of the row seat 10;
when demoulding is carried out once, the slide seat 10 drives the slide insert 40 and the limiting block 60 to move in a first direction, the limiting block 60 supports the floating block 50, the floating block 50 buckles the push block 30, the push block 30 does not move, the push block 30 generates pushing-out action relative to the slide insert 40, the product 90 is pushed out by a corresponding distance, namely, the push block 30 generates one ejection action, and demoulding is completed once;
after the primary ejection action is finished and the secondary demoulding is carried out, the slide seat 10 drives the limiting block 60 to move a corresponding distance in the first direction, the limiting block 60 is not contacted with the floating block 50 any more, and the floating block 50 is not limited by the limiting block 60 any more; when the slide seat 10 continues to move in the first direction, the poking block 70 contacts with the poking lug 51 on the side surface of the floating block 50, the floating block 50 is poked by the force of the poking block 70, the floating block 50 does not buckle the pushing block 30 any more, the pushing block 30 moves along with the slide seat 10 in the first direction, namely, the pushing block 30 generates a secondary ejection action, secondary demolding is completed, and the product 90 is smoothly and stably pushed out.
The row-position secondary demoulding mechanism solves the control of the ejection action of the push block 30, so that the product 90 can be smoothly pushed out, the mould structure is simplified, and the degree of automation is improved.
2. The bottom surface of the push block 30 is provided with a clamping groove 31, the top surface of the floating block 50 is provided with a clamping buckle 52, and the clamping buckle 52 is matched and clamped with the clamping groove 31, so that the floating block 50 can be used for clamping the push block 30 more stably.
3. The slider 50 is provided with a pin 53, and the slider 50 can be rotated downward around the pin 53 when it is no longer limited by the stopper 60.
4. The first notch 54 is formed on the bottom surface of the slider 50, and the stopper 60 is matched with the first notch 54, so that the stopper 60 supports the slider 50 more stably.
5. The bottom surface of the floating block 50 is provided with a limit spring 80, when the die assembly and the primary ejection are in a finished state, the floating block 50 can well buckle the push block 30 through the resilience force of the limit spring 80, and when the secondary ejection is performed, the floating block 50 starts to receive the force of the poking block 70, so that the floating block is poked, the limit spring 80 is compressed, and the floating block 50 rotates downwards.
6. The lower bottom surface of the shifting block 70 is provided with a first shifting boss 71 and a first groove 72, the top surface of the shifting lug 51 is provided with a second groove 511 and a second shifting boss 512, the first shifting boss 71 is correspondingly matched with the second groove 511, and the first groove 72 is correspondingly matched with the second shifting boss 512, so that the shifting block 70 can better shift the floating block 50.
7. The first stirring boss 71 and the first stirring groove are provided with a first transition inclined plane 73, the second stirring groove and the second stirring boss 512 are provided with a second transition inclined plane 513, a gap is reserved between the first transition inclined plane 73 and the second transition inclined plane 513, so that a secondary line gap is reserved for stirring the floating block 50 by the stirring block 70, and the product 90 can be stably and smoothly pushed out for demolding.
8. The first transition inclined plane 73 corresponds to the gradient of the second transition inclined plane 513, and the gradients of the first transition inclined plane 73 and the second transition inclined plane 513 are 40% to 100%, so that the poking block 70 can better poke the floating block 50, the product 90 can be smoothly pushed out for demoulding, and the degree of automation is improved.
The foregoing is merely exemplary embodiments of the present invention, and is not intended to limit the scope of the present invention; any substitutions and modifications made without departing from the spirit of the invention are within the scope of the invention.
Claims (5)
1. The slide secondary demoulding mechanism is characterized by comprising a slide seat, a guide block, a push block, a slide insert, a floating block, a limiting block and a shifting block, wherein a first through hole is formed in the push block, the guide block penetrates through the first through hole and is in sliding fit with the push block, and two ends of the guide block are respectively connected with the slide seat and the slide insert;
the floating block and the shifting block are arranged on the bottom surface of the pushing block, the floating block is in limit clamping with the pushing block, the shifting block is connected with the pushing block, a shifting lug is arranged on the side surface of the floating block, and the shifting block is matched with the shifting lug;
the limiting block is arranged on the bottom surface of the row seat and is in limiting connection with the bottom surface of the floating block;
a clamping groove is formed in the bottom surface of the pushing block, a buckle is arranged on the top surface of the floating block, and the buckle is matched with the clamping groove;
the floating block is also provided with a pin shaft, and is hinged and fixed through the pin shaft;
the bottom surface of the floating block is provided with a first notch, and the limiting block is matched with the first notch;
and a limiting spring is arranged on the bottom surface of the floating block.
2. The line level secondary stripping mechanism as recited in claim 1, wherein the lower bottom surface of the shifting block has a first shifting boss and a first groove, the top surface of the shifting boss has a second groove and a second shifting boss, the first shifting boss is correspondingly matched with the second groove, and the first groove is correspondingly matched with the second shifting boss.
3. The slide secondary stripping mechanism as recited in claim 2, wherein the first toggle boss and the first recess have a first transition slope, the second recess and the second toggle boss have a second transition slope, and a gap is left between the first transition slope and the second transition slope.
4. The slide secondary stripping mechanism as claimed in claim 3, wherein the first transition inclined surface corresponds to the gradient of the second transition inclined surface, and the gradients of the first transition inclined surface and the second transition inclined surface are 40% to 100%.
5. A demolding method of a slide secondary demolding mechanism, characterized in that the slide secondary demolding mechanism according to any one of claims 1 to 4 is applied to the demolding method, comprising the steps of,
when demoulding is carried out once, the slide seat drives the slide insert and the limiting block to move in a first direction, the limiting block supports the floating block, the floating block buckles the pushing block, the pushing block is not moved, the pushing block generates pushing action relative to the slide insert, the product is pushed out for a corresponding distance, namely, the pushing block generates a primary ejection action, and one demoulding is completed;
when demolding is performed for the second time, after the slide seat drives the limiting block to move a corresponding distance in the first direction, the limiting block is not contacted with the floating block, and the floating block is not limited by the limiting block; when the slide seat continues to move towards the first direction, the poking block is contacted with the poking convex block on the side surface of the floating block, the floating block is poked by the poking block, the floating block does not buckle the pushing block any more, the pushing block moves towards the first direction along with the slide seat, namely, the pushing block generates a secondary ejection action, secondary demoulding is completed, and a product is smoothly and stably pushed out.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711424895.1A CN107914368B (en) | 2017-12-25 | 2017-12-25 | Slide secondary demoulding mechanism and demoulding method thereof |
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| CN201711424895.1A CN107914368B (en) | 2017-12-25 | 2017-12-25 | Slide secondary demoulding mechanism and demoulding method thereof |
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| CN107914368A CN107914368A (en) | 2018-04-17 |
| CN107914368B true CN107914368B (en) | 2023-10-27 |
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| CN114161661A (en) * | 2021-12-31 | 2022-03-11 | 大连銮艺精密模塑制造有限公司 | Precision mold with first-drawing protection mechanism |
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| CN110625901A (en) * | 2019-09-20 | 2019-12-31 | 珠海西比特精密模具有限公司 | Slide secondary core-pulling structure |
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| JPH10146867A (en) * | 1996-11-20 | 1998-06-02 | Honda Motor Co Ltd | Release device of injection mold |
| JP2002127204A (en) * | 2000-10-27 | 2002-05-08 | Sekisui Chem Co Ltd | Mold for injection molding |
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| CN107914368A (en) | 2018-04-17 |
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