CN110303095B - Ejecting and reset structure of mould - Google Patents
Ejecting and reset structure of mould Download PDFInfo
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- CN110303095B CN110303095B CN201910597461.4A CN201910597461A CN110303095B CN 110303095 B CN110303095 B CN 110303095B CN 201910597461 A CN201910597461 A CN 201910597461A CN 110303095 B CN110303095 B CN 110303095B
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- plate
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- ejection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
- B21D45/04—Ejecting devices interrelated with motion of tool
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a mold ejection and reset structure, which belongs to the field of molds and comprises a rack, a placing plate, a lower mold, a first top mold assembly and a second top mold assembly, wherein a supporting plate is fixed at the lower end of the rack; the first top die assembly comprises a first top die rod and a first driving plate, a first driving piece is arranged at the lower end of the first driving plate, and the first driving piece is fixed on the supporting plate; the second top die assembly comprises four second top die rods, a second driving plate and adjusting pieces at the upper end of the second driving plate, the four second top die rods are arranged in a pairwise opposite mode, a second driving piece is arranged at the lower end of the second driving plate, and the second driving piece is connected to the placing plate in a sliding mode and located between the first top die assembly and the placing plate; the workpiece is pre-ejected through the first ejection module, the workpiece is completely ejected through the second ejection module, the second ejection rods can slide front and back and left and right in the second ejection module, the distances among the four second ejection rods are adjusted, the distances among the second ejection rods can be adjusted to be ejected to the safe ejection workpiece according to workpieces made of different materials, the workpiece is not damaged, and the workpiece is reset through the driving piece, and the resetting is accurate.
Description
Technical Field
The invention belongs to the technical field of molds, and particularly relates to a mold ejection and reset structure.
Background
The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The element has the name of "industrial mother".
The blank is formed into a tool with a specific shape and size under the action of external force. The method is widely applied to blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like. The die has a specific contour or cavity shape, and the blank can be separated (blanked) according to the contour shape by applying the contour shape with the cutting edge. The blank can obtain a corresponding three-dimensional shape by using the shape of the inner cavity. The mold generally comprises a movable mold and a fixed mold (or a male mold and a female mold), which can be separated or combined. When the blank is closed, the blank is injected into the die cavity for forming. The die is a precise tool, has a complex shape, bears the expansion force of a blank, has higher requirements on structural strength, rigidity, surface hardness, surface roughness and processing precision, and the development level of die production is one of important marks of the mechanical manufacturing level.
In the mold processing, after the mold processing is completed, the ejector pins are generally adopted to eject the processed product, in the ejection process, the ejector pins penetrate through the ejector holes formed in the mold to eject, the ejector holes are generally formed in the previous process, when the mold is used for processing products made of different materials, the products are different in material and tangential stress, when the specific ejector holes are used for ejecting the molds made of different materials, the phenomenon that the stress of the products is uneven can be generated, and the products are damaged.
Disclosure of Invention
The invention aims to provide a mold ejection and reset structure, which is used for ejecting by using two mold ejecting rods and ejecting by using two ejection modes, solves the problems and ensures the uniformity of the stress of the ejection of a product and the accuracy of reset.
In order to achieve the purpose, the invention provides the following technical scheme: a mold ejection and reset structure comprises a rack, a placing plate at the upper end of the rack, a lower mold on the placing plate, a first top mold assembly at the lower end of the placing plate, and a second top mold assembly also positioned at the lower end of the placing plate, wherein a supporting plate is fixed at the lower end of the rack, a through groove is formed in the bottom of the lower mold, an upper mold is arranged at the upper end of the lower mold, the upper mold is connected to the upper end of the rack through a supporting rod, and the upper end of the upper mold is connected with a driving device for driving the upper mold to be pressed downwards;
the first top die assembly comprises a first top die rod and a first driving plate positioned at the lower end of the first top die rod, and a first driving piece is arranged at the lower end of the first driving plate and fixed on the supporting plate;
the second top die assembly comprises four second top die rods, a second drive plate located at the lower end of the second top die rods and adjusting pieces located at the upper end of the second drive plate, the two second top die rods are arranged oppositely, a second driving piece is arranged at the lower end of the second drive plate, and the second driving piece is connected to the placing plate in a sliding mode and located between the first top die assembly and the placing plate.
Preferably, four fixing grooves for fixing the first top mold rod are formed in the first drive plate, the fixing grooves are formed along four corners of the first drive plate, a first spring is fixed inside each fixing groove, the first spring is far away from the bottom of each fixing groove and is fixedly connected with the first top mold rod, and a rubber pad is fixed at the ejection end of each first top mold rod.
Preferably, the upper periphery of the lower die is provided with a through hole for ejecting the first ejector rod.
Preferably, the first driving member includes first cylinders having piston ends fixed to the lower end of the first driving plate, the number of the first cylinders corresponds to that of the first ejector pins, and the lower ends of the first cylinders are fixed to the supporting plate.
Preferably, the second driving plate is connected to a guide rail fixed to the lower end of the placing plate in a sliding manner, the second driving part is arranged at the bottom end of the placing plate and is a second cylinder, the piston end of the second cylinder is fixed to the lower end of the second driving plate, and the second cylinder is fixed to the frame.
Preferably, the regulating part is including being located the regulation body on the second drive plate, the regulation body slides and connects on the guide rail, the regulation body is kept away from the second drive face and has been seted up the cross spout, the second ejector beam slides through the dovetail slider of fixing in second ejector beam bottom and connects inside the cross spout, be equipped with the gliding driving piece that slides of drive second ejector beam on the dovetail slider.
Preferably, the sliding driving part comprises a bidirectional screw rod in threaded connection with the inside of the dovetail-shaped sliding block, two ends of the bidirectional screw rod extend out of the adjusting body, and the extending end is fixed with the adjusting rotating wheel.
Preferably, the upper end of the second top die rod is fixedly connected with a second spring, a top plate is arranged at the end, away from the second top die rod, of the second spring, a telescopic rod penetrates through the second spring, and the telescopic rod is arranged in a plurality of positions along the circumferential direction of the second spring.
The invention has the beneficial effects that: the workpiece is pre-ejected through the first ejection module, the workpiece is completely ejected through the second ejection module, in the second ejection module, the second ejection rods can slide front and back and left and right, the distance between the four second ejection rods is adjusted, the distance between the second ejection rods can be adjusted according to workpieces made of different materials, the workpiece is ejected to the safe ejection workpiece, the workpiece is not damaged, the workpiece is reset through the driving piece, the driving piece drives the first ejection rods and the second ejection rods to move up and down, the mechanical reset transmission is changed from manual operation before, and the reset is accurate.
Drawings
FIG. 1 is a schematic perspective view of a mold ejection and reset structure according to the present invention;
FIG. 2 is a schematic front view of a mold ejection and return structure of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of a first top mold assembly of a mold ejection and reset structure according to the present invention;
FIG. 4 is a schematic view of a second top mold assembly of a mold ejection and return structure provided in the present invention;
fig. 5 is a schematic view of a second ejector pin of the mold ejection and reset structure provided by the invention.
In the figure: 1. a frame; 2. placing the plate; 3. a lower die; 4. a first top die assembly; 401. a first ejector pin; 402. a first drive plate; 403. fixing grooves; 404. a first spring; 405. a rubber pad; 406. a first cylinder; 5. a second top die assembly; 501. a second ejector pin; 502. a second drive plate; 503. a second cylinder; 504. an adjuster; 505. a cross-shaped chute; 506. a dovetail-shaped slider; 507. a bidirectional screw; 508. adjusting the rotating wheel; 509. a second spring; 510. a top plate; 511. a telescopic rod; 6. a support plate; 7. a through groove; 8. an upper die; 9. a support bar; 10. and a through hole.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 5, a mold ejecting and resetting structure according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
The mold ejecting and resetting structure comprises a rack 1, a placing plate 2 at the upper end of the rack 1, a lower mold 3 on the placing plate 2, a first top mold assembly 4 at the lower end of the placing plate 2, and a second top mold assembly 5 also positioned at the lower end of the placing plate 2, wherein a supporting plate 6 is fixed at the lower end of the rack 1, a through groove 7 is formed in the bottom of the lower mold 3, an upper mold 8 is arranged at the upper end of the lower mold 3, the upper mold 8 is connected to the upper end of the rack 1 through a supporting rod 9, and the upper end of the upper mold 8 is connected with a driving device for driving the upper mold 8 to press downwards;
the first top die assembly 4 comprises a first top die rod 401 and a first driving plate 402 positioned at the lower end of the first top die rod 401, wherein a first driving piece is arranged at the lower end of the first driving plate 402 and fixed on the supporting plate 6;
the second ejector die assembly 5 comprises a second ejector die rod 501, a second drive plate 502 located at the lower end of the second ejector die rod 501, and adjusting pieces located at the upper ends of the second drive plate 502, the second ejector die rod 501 is four, the two ejector die rods are arranged oppositely, a second driving piece is arranged at the lower end of the second drive plate 502, the second driving piece is connected to the placing plate 2 in a sliding mode and located between the first ejector die assembly 4 and the placing plate 2.
Specifically, four fixing grooves 403 for fixing the first ejector pin 401 are formed in the first driving plate 402, the fixing grooves 403 are formed along four corners of the first driving plate 402, a first spring 404 is fixed inside the fixing groove 403, the first spring 404 is fixedly connected to the first ejector pin 402 far away from the bottom of the fixing groove 403, and a rubber pad 405 is fixed at the top end of the first ejector pin 402; the upper periphery of the lower mold 3 is provided with a through hole 10 for ejecting the first ejector pin 402.
In this embodiment: the first ejector pin 401 is ejected upwards through the fixing groove 403, and is ejected by contacting with a workpiece through the rubber pad 405, and meanwhile, the first spring 404 is arranged, so that the shock absorption in the ejection process is improved.
Specifically, the first driving member includes first air cylinders 406 whose piston ends are fixed to the lower end of the first driving plate 402, the number of the first air cylinders 406 corresponds to the number of the first ejector pins 401, and the lower ends of the first air cylinders 406 are fixed to the supporting plate 6.
In this embodiment: the first air cylinders 406 correspond to the first ejector rods 401 one by one, and the first air cylinders 406 individually control the corresponding first ejector rods 401 to drive.
Specifically, the second driving plate 502 is connected to a guide rail fixed to the lower end of the placing plate 2 in a sliding manner, the second driving member is arranged at the bottom end of the placing plate, the second driving member is a second cylinder 503, the piston end of the second cylinder 503 is fixed to the lower end of the second driving plate 502, and the second cylinder 503 is fixed to the frame 1.
In this embodiment: the second cylinder 503 drives the second driving plate 502 to move up and down, and the second driving plate 502 slides on the guide rail by the driving of the second cylinder 503.
Specifically, the regulating part includes the regulating body 504 that is located on second drive plate 502, the regulating body 504 slides and connects on the guide rail, the regulating body 504 is kept away from second drive plate 502 face and has been seted up cross spout 505, second ejector beam 501 slides through the dovetail slider 506 of fixing in second ejector beam 501 bottom and connects inside cross spout 505, be equipped with the gliding driving piece that slides of drive second ejector beam 501 on the dovetail slider 506.
In this embodiment: the dovetail-shaped sliding block 506 at the lower end of the second ejector pin 501 is driven by the sliding driving member to slide inside the cross sliding groove 505, and the distance between the second ejector pins 501 can be adjusted.
Specifically, the sliding driving member includes a bidirectional screw 507 threaded inside a dovetail-shaped slider 506, two ends of the bidirectional screw 504 extend out of the adjusting body 504, and an adjusting rotating wheel 508 is fixed at the extending end.
In this embodiment: the adjusting rotating wheel 508 is rotated by holding the adjusting rotating wheel 508 by hand, and then the bidirectional screw 507 rotates, so that the dovetail-shaped sliding block 506 moves.
Specifically, second ejector pin 501 upper end fixedly connected with second spring 509, second spring 509 keeps away from second ejector pin 501 end and is equipped with roof 510, the inside telescopic link 511 that wears to be equipped with of second spring 509, telescopic link 511 is equipped with a plurality ofly along second spring 509 circumferencial direction.
In this embodiment: when the second top die rod 501 moves upwards, the top plate 510 preferentially touches the surface of the workpiece, when the top plate 510 touches, the second spring 509 is arranged for cushioning, meanwhile, the telescopic rod 511 is arranged inside the second spring 509, and the stability is guaranteed by the telescopic rod 511 during cushioning.
The working principle of the invention is as follows: the first ejector rod 401 is driven to eject through the first air cylinder 406, when the first ejector rod 401 is ejected, the adjusting rotating wheel 508 is rotated through the dovetail-shaped sliding block 506 by hand, the distance between the four second ejector rods 501 can be changed at will and can be adjusted controllably through the handheld adjusting rotating wheel 508, when the adjustment of the second ejector rods 501 is finished, the second air cylinder 503 drives the second driving plate 502 to move upwards, and a workpiece is ejected through the through groove 7 on the lower die 3; when resetting, the first cylinder 406 and the second cylinder 503 are controlled again to drive, and the first drive plate 402 and the second drive plate 502 are reset.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A mold ejection and reset structure is characterized by comprising a rack (1), a placing plate (2) at the upper end of the rack (1), a lower mold (3) on the placing plate (2), a first top mold assembly (4) at the lower end of the placing plate (2), and a second top mold assembly (5) which is also located at the lower end of the placing plate (2), wherein a support plate (6) is fixed at the lower end of the rack (1), a through groove (7) is formed in the bottom of the lower mold (3), an upper mold (8) is arranged at the upper end of the lower mold (3), the upper mold (8) is connected to the upper end of the rack (1) through a support rod (9), and a driving device for driving the upper mold (8) to press downwards is connected to the upper end of the upper mold (8);
the first top die assembly (4) comprises a first top die rod (401) and a first driving plate (402) positioned at the lower end of the first top die rod (401), a first driving piece is arranged at the lower end of the first driving plate (402), and the first driving piece is fixed on the supporting plate (6);
the second top die assembly (5) comprises second top die rods (501), a second driving plate (502) positioned at the lower end of the second top die rods (501), and adjusting pieces positioned at the upper ends of the second driving plate (502), four second top die rods (501) are arranged oppositely in pairs, a second driving piece is arranged at the lower end of the second driving plate (502), and the second driving piece is connected to the placing plate (2) in a sliding manner and positioned between the first top die assembly (4) and the placing plate (2);
the regulating part is including being located regulation body (504) on second drive plate (502), regulation body (504) slide and connect on guide rail (11), second drive plate (502) face has been kept away from to regulation body (504) has seted up cross spout (505), second ejector half pole (501) slide through dovetail slider (506) of fixing in second ejector half pole (501) bottom and connect in cross spout (505) are inside, be equipped with the gliding driving piece that slides of drive second ejector half pole (501) on dovetail slider (506).
2. The mold ejection and return structure according to claim 1, wherein four fixing grooves (403) for fixing the first ejector pin (401) are formed on the first driving plate (402), the fixing grooves (403) are formed along four corners of the first driving plate (402), a first spring (404) is fixed inside the fixing groove (403), the first spring (404) is fixedly connected to the first ejector pin (401) far away from the bottom of the fixing groove (403), and a rubber pad (405) is fixed at the top end of the first ejector pin (401).
3. The mold ejecting and returning structure according to claim 1 or 2, wherein the lower mold (3) has a through hole (10) formed at its upper periphery for ejecting the first ejector pin (401).
4. A mold ejection and return structure as claimed in claim 1, wherein said first driving member comprises a first cylinder (406) having a piston end fixed to a lower end of a first driving plate (402), said first cylinder (406) having a lower end fixed to the supporting plate (6).
5. The mold ejection and return structure according to claim 1, wherein the second driving plate (502) is slidably connected to a guide rail (11) fixed to the lower end of the placing plate (2), the second driving member is disposed at the bottom end, the second driving member is a second cylinder (503), the piston end of the second cylinder (503) is fixed to the lower end of the second driving plate (502), and the second cylinder (503) is fixed to the frame (1).
6. The mold ejection and return structure of claim 1, wherein the sliding driving member comprises a two-way screw (507) threaded inside a dovetail-shaped sliding block (506), both ends of the two-way screw (507) extend out of the adjusting body (504), and an adjusting rotating wheel (508) is fixed at the extending end.
7. The mold ejection and return structure according to claim 1, wherein a second spring (509) is fixedly connected to an upper end of the second ejector rod (501), a top plate (510) is arranged at an end of the second spring (509) far away from the second ejector rod (501), a plurality of telescopic rods (511) penetrate through the second spring (509), and the telescopic rods (511) are arranged along the circumferential direction of the second spring (509).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910597461.4A CN110303095B (en) | 2019-07-04 | 2019-07-04 | Ejecting and reset structure of mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910597461.4A CN110303095B (en) | 2019-07-04 | 2019-07-04 | Ejecting and reset structure of mould |
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| Publication Number | Publication Date |
|---|---|
| CN110303095A CN110303095A (en) | 2019-10-08 |
| CN110303095B true CN110303095B (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910597461.4A Active CN110303095B (en) | 2019-07-04 | 2019-07-04 | Ejecting and reset structure of mould |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0418779A1 (en) * | 1989-09-20 | 1991-03-27 | Feintool International Holding | Method for manufacture of workpieces by punching, in particular in a precision counter punching tool |
| KR20050058166A (en) * | 2003-12-11 | 2005-06-16 | 김은태 | Device for ejecting molding products |
| JP2007268579A (en) * | 2006-03-31 | 2007-10-18 | Aisin Aw Co Ltd | Lift mechanism and mold equipped with the same |
| CN202169331U (en) * | 2011-07-11 | 2012-03-21 | 昆山科森科技有限公司 | Bushing processing die |
| CN202725822U (en) * | 2012-08-07 | 2013-02-13 | 杭州福康炊具有限公司 | Mold for forming rice cooker inner container |
| CN204276691U (en) * | 2014-11-29 | 2015-04-22 | 安徽六方重联机械股份有限公司 | The portable bolt processing mold of a kind of counterdie |
| CN204470450U (en) * | 2014-12-29 | 2015-07-15 | 慈溪市桥头思域工业产品设计室 | A kind of press machine fast demoulding mould |
-
2019
- 2019-07-04 CN CN201910597461.4A patent/CN110303095B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0418779A1 (en) * | 1989-09-20 | 1991-03-27 | Feintool International Holding | Method for manufacture of workpieces by punching, in particular in a precision counter punching tool |
| KR20050058166A (en) * | 2003-12-11 | 2005-06-16 | 김은태 | Device for ejecting molding products |
| JP2007268579A (en) * | 2006-03-31 | 2007-10-18 | Aisin Aw Co Ltd | Lift mechanism and mold equipped with the same |
| CN202169331U (en) * | 2011-07-11 | 2012-03-21 | 昆山科森科技有限公司 | Bushing processing die |
| CN202725822U (en) * | 2012-08-07 | 2013-02-13 | 杭州福康炊具有限公司 | Mold for forming rice cooker inner container |
| CN204276691U (en) * | 2014-11-29 | 2015-04-22 | 安徽六方重联机械股份有限公司 | The portable bolt processing mold of a kind of counterdie |
| CN204470450U (en) * | 2014-12-29 | 2015-07-15 | 慈溪市桥头思域工业产品设计室 | A kind of press machine fast demoulding mould |
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| CN110303095A (en) | 2019-10-08 |
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