CN216992926U

CN216992926U - Injection mold quick ejection mechanism capable of efficiently demolding

Info

Publication number: CN216992926U
Application number: CN202220332790.3U
Authority: CN
Inventors: 吴强; 程晨; 吴晨飞
Original assignee: Shenzhen Taidelong Electronic Technology Co ltd
Current assignee: Shenzhen Taidelong Electronic Technology Co ltd
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-07-19
Anticipated expiration: 2032-02-16

Abstract

The utility model provides a high-efficiency demoulding injection mould quick ejection mechanism, which relates to the technical field of injection moulds and comprises a base and a mould body, wherein the mould body is arranged in the middle of the upper surface of the base, a forming groove is formed in the middle of the upper surface of the mould body, a movable groove is formed in the lower end of the interior of the mould body, and a quick demoulding mechanism is arranged between the base and the mould body. In the utility model, in the process that the ejector pins push the molding raw materials through the supporting plate, outside air can enter between the molding raw materials and the molding grooves through the through holes which are overlapped mutually, so that a vacuum environment is prevented from being generated between the molding raw materials and the molding grooves, the demolding efficiency of the ejector pins on the molding raw materials is greatly accelerated, the pressure applied to the ejector pins when the ejector pins push the molding raw materials is reduced, and the ejector pins are better protected.

Description

Injection mold quick ejection mechanism capable of efficiently demolding

Technical Field

The utility model relates to the technical field of injection molds, in particular to a high-efficiency demolding injection mold quick ejection mechanism.

Background

The plastic molding is also called injection molding, and is a molding method combining injection molding and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like. When the inside raw materials cooling of injection mold is accomplished, generally need carry out ejecting work to the inside shaping raw materials of injection mold through ejection mechanism, but because shaping raw materials can form zonulae occludens with shaping mold's inside after the shaping is accomplished, then when ejection mechanism promotes shaping raw materials, can produce the vacuum state between shaping raw materials and the injection mold, bring huge pressure to ejection mechanism promptly, make ejection mechanism take place the condition such as fracture easily, the drawing of patterns degree of difficulty of shaping raw materials has aggravated again.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a high-efficiency demoulding injection mould rapid ejection mechanism which can effectively solve the problems in the background technology.

In order to realize the purpose, the utility model adopts the technical scheme that:

the quick ejection mechanism of the injection mold for efficient demolding comprises a base and a mold body, wherein the mold body is installed in the middle of the upper surface of the base, a forming groove is formed in the middle of the upper surface of the mold body, a movable groove is formed in the lower end of the inside of the mold body, a quick demolding mechanism is installed between the base and the mold body and comprises a thimble and a sealing plate, the thimble is provided with a plurality of parts, the thimble is installed on the upper surface of a supporting plate respectively, the upper end of the thimble is movably installed in an ejection hole in a penetrating mode, the supporting plate is movably installed in the movable groove respectively, the sealing plate is movably installed in a sealing groove, and the sealing groove is formed in the upper surface of the mold body.

Preferably, the ejection holes penetrate through the inner lower surface of the forming groove respectively, the middle of the lower surface of the support plate is connected with the upper end of the push rod, and the lower end of the push rod movably penetrates through the lower surface of the movable groove and is connected with the output end of the air cylinder.

Preferably, the cylinder is installed in the middle of the upper surface of the support frame, the support frame is connected with the lower surface of the base, a plurality of through holes are respectively arranged between the sealing groove and the sealing plate in a penetrating mode, and the through holes are parallel to each other.

Preferably, the upper end of one side, close to the forming groove, of the sealing plate is provided with a plurality of limiting grooves respectively, the limiting grooves are parallel to the through holes from top to bottom, and sealing frames are movably mounted inside the limiting grooves respectively.

Preferably, a first spring is arranged between the sealing frame and the limiting groove respectively, one end of the sealing frame is clamped and connected with the through hole close to one side of the forming groove, and the lower end of the sealing plate is provided with a pushing rod respectively.

Preferably, the lower end of the push rod movably penetrates through the lower end of the sealing groove and is connected with the connecting plate, the push rod is movably installed in the middle of the lower surface of the connecting plate in a penetrating mode, the upper surface of the connecting plate is vertically parallel to the positioning block, and the positioning block is installed on the lower surface of the base respectively.

Preferably, sliding grooves are respectively formed in two sides of the lower end of the push rod, sliding blocks are respectively movably mounted in the sliding grooves, one ends of the sliding blocks are respectively connected with the connecting plates, positioning rods are respectively fixedly mounted in the sliding grooves, sliding blocks are respectively movably arranged on the outer sides of the rod bodies of the positioning rods in a penetrating mode, and second springs are respectively arranged on the outer sides of the positioning rods between the lower surface of the sliding blocks and the sliding grooves.

Compared with the prior art, the utility model has the following beneficial effects:

(1) in the utility model, in the process that the ejector pins push the molding raw materials through the supporting plate, outside air can enter between the molding raw materials and the molding grooves through the through holes which are overlapped mutually, so that a vacuum environment is prevented from being generated between the molding raw materials and the molding grooves, the demolding efficiency of the ejector pins on the molding raw materials is greatly accelerated, the pressure applied to the ejector pins when the ejector pins push the molding raw materials is reduced, and the ejector pins are better protected.

(2) According to the utility model, the sealing frame is used for sealing the through hole arranged in the forming groove by pushing of the first spring, so that the injection molding raw material cannot fall into the sealing groove, the inside of the forming groove is kept in a sealing state, and the injection molding raw material is better formed.

Drawings

FIG. 1 is a schematic view of the overall structure of the injection mold rapid ejection mechanism with high-efficiency demolding;

FIG. 2 is a schematic diagram of a top view structure of the injection mold rapid ejection mechanism with efficient demolding according to the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A in FIG. 2 of the injection mold rapid ejection mechanism for efficient mold release according to the present invention;

FIG. 4 is an enlarged schematic structural view of the part B in FIG. 3 of the injection mold rapid ejection mechanism with high-efficiency demolding according to the present invention;

fig. 5 is an enlarged structural schematic diagram of the injection mold rapid ejection mechanism with efficient demolding shown in fig. 3 at C.

In the figure: 1. a base; 2. a mold body; 3. forming a groove; 4. a rapid demoulding mechanism; 401. a cylinder; 402. a support frame; 403. a push rod; 404. a support plate; 405. a thimble; 406. an ejection aperture; 407. a sealing groove; 408. a sealing plate; 409. positioning blocks; 410. a push rod; 411. a connecting plate; 412. a through hole; 413. a limiting groove; 414. a seal holder; 415. a first spring; 416. a chute; 417. a second spring; 418. positioning a rod; 419. a slider; 5. a movable groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1-5, a high-efficiency demolding injection mold rapid ejection mechanism includes a base 1 and a mold body 2, the mold body 2 is installed in the middle of the upper surface of the base 1, a forming groove 3 is arranged in the middle of the upper surface of the mold body 2, a movable groove 5 is arranged at the lower end of the interior of the mold body 2, a rapid demolding mechanism 4 is installed between the base 1 and the mold body 2, the rapid demolding mechanism 4 includes a thimble 405 and a sealing plate 408, the thimble 405 is provided with a plurality of ejector pins 405, the thimble 405 is respectively installed on the upper surface of a supporting plate 404, the upper end of the thimble 405 is respectively movably installed inside an ejection hole 406, the supporting plate 404 is respectively movably installed inside the movable groove 5, the sealing plate 408 is movably installed inside a sealing groove 407, and the sealing groove 407 is arranged on the upper surface of the mold body 2.

In a specific arrangement, the ejection holes 406 respectively penetrate through the inner lower surface of the molding groove 3, the middle of the lower surface of the support plate 404 and the upper end of the push rod 403 are connected with each other, and the lower end of the push rod 403 movably penetrates through the lower surface of the movable groove 5 and is connected with the output end of the air cylinder 401. Through the pushing of the push rod 403, the support plate 404 drives the thimble 405 to perform fast ejection work on the molding raw material according to the ejection hole 406, so that the blanking speed of the molding raw material is increased, and the method is more convenient and faster.

In specific arrangement, the cylinder 401 is installed in the middle of the upper surface of the support frame 402, the support frame 402 is connected with the lower surface of the base 1, a plurality of through holes 412 are respectively arranged between the sealing groove 407 and the sealing plate 408 in a penetrating manner, and the through holes 412 are parallel to each other. Control thimble 405 through cylinder 401 and carry out ejecting work to the raw materials, also control closing plate 408 simultaneously and remove, let parallel to each other between the through-hole 412, thereby make at the in-process that thimble 405 promoted the shaping raw materials, can guide external air to between shaping raw materials and shaping groove 3 through-hole 412, avoid because the vacuum environment that zonulae occludens formed between shaping raw materials and the shaping groove 3, increase the ejecting degree of difficulty of thimble 405 to the shaping raw materials, thereby make thimble 405 can be more simple swift carry out ejecting work to the shaping raw materials.

When specifically setting up, the sealing plate 408 is close to one side upper end of shaping groove 3 and is equipped with a plurality of spacing grooves 413 respectively, spacing groove 413 is parallel from top to bottom respectively with between the through-hole 412, the inside movable mounting of spacing groove 413 has seal receptacle 414 respectively, be equipped with a spring 415 between seal receptacle 414 and the spacing groove 413 respectively, the one end of seal receptacle 414 with be close to between the through-hole 412 of shaping groove 3 one side card and be connected, catch bar 410 is installed respectively to the lower extreme of sealing plate 408. When the injection molding operation is performed, the through hole 412 formed in the molding groove 3 is sealed by the sealing frame 414, so that the injection molding raw material cannot fall into the sealing groove 407, the injection molding raw material is better enabled to perform the molding operation, and then the ejection and demolding operation needs to be performed on the molding raw material, the sealing frame 414 moves upwards through the push of the push rod 403, the sealing frame 414 leaves the through hole 412, is clamped into the inside of the limiting groove 413 and extrudes the spring 415, and then moves upwards along with the sealing plate 408, so that the through holes 412 formed in the sealing plate 408 and the sealing groove 407 are parallel to each other, so that the external air can enter the space between the molding raw material and the molding groove 3 through the through hole 412, the formation of a vacuum environment is avoided, and the ejection and demolding operation on the molding raw material is more simple and convenient.

When the device is specifically arranged, the lower end of the push rod 410 respectively and movably penetrates through the lower end of the sealing groove 407 and is connected with the connecting plate 411, the push rod 403 is movably installed in the middle of the lower surface of the connecting plate 411 in a penetrating mode, the upper surface of the connecting plate 411 is vertically parallel to the positioning block 409, and the positioning block 409 is respectively installed on the lower surface of the base 1. The sealing plate 408 is controlled by the connecting plate 411 and the pushing rod 410 to move up and down in the sealing groove 407, so that whether the through holes 412 are overlapped or not is controlled, the operation is more convenient, the upward moving height of the connecting plate 411 is controlled by the positioning block 409, and the overlapping operation between the through holes 412 is more accurate.

When specifically setting up, the lower extreme both sides of push rod 403 are equipped with spout 416 respectively, and the inside movable mounting respectively of spout 416 has slider 419, and interconnect between slider 419's one end respectively and the connecting plate 411, the inside fixed mounting respectively of spout 416 has locating lever 418 and the pole body outside of locating lever 418 is the activity respectively and is run through and install slider 419, is located the locating lever 418 outside between the lower surface of slider 419 and spout 416 and is equipped with No. two spring 417 respectively. After the connection plate 411 and the positioning block 409 are positioned, when the push rod 403 moves upwards continuously, the connection plate 411 slides in the sliding groove 416 through the slider 419, so that the connection plate 411 is kept stable, the push rod 403 can control the ejector pins 405 to eject molding materials conveniently, and the connection plate 411 stops moving after pushing the sealing plate 408 to a specified height, which is simpler and more convenient, and when the push rod 403 moves downwards, the connection plate 411 is pushed by the second spring 417 to push the slider 419 to reset the connection plate 411, and then along with the continuous descending operation of the push rod 403, the connection plate 411 controls the sealing plate 408 to be clamped in the sealing groove 407, so that the sealing frame 414 performs sealing positioning operation on the through hole 412.

The operating principle of the injection mold quick ejection mechanism with efficient demolding comprises the following steps:

when the device is used, firstly, after the raw material forming is completed, the air cylinder 401 is started, the output end of the air cylinder 401 drives the push rod 403 to move upwards, then along with the upward movement of the push rod 403, the connecting plate 411 is matched with the positioning rod 418 and the sliding groove 416 through the slider 419, the connecting plate 411 moves upwards along with the push rod 403, the connecting plate 411 pushes the sealing plate 408 upwards through the push rod 410, the sealing plate 408 drives the sealing frame 414 to separate from the through hole 412 in the forming groove 3, then the sealing frame 414 is clamped in the limiting groove 413 to extrude the first spring 415, then when the through holes 412 are overlapped with each other, the connecting plate 411 is positioned through the positioning block 409, the upward movement is stopped, then along with the continuous upward movement of the push rod 403, the connecting plate 411 drives the slider 419 to extrude the second spring 417 outside the positioning rod 418, meanwhile, the push rod 403 drives the support plate 404 to move upwards, the support plate 404 drives the ejector pin 405 to eject and demould the molding raw material through the ejection hole 406, and meanwhile, when the ejector pin 405 ejects the molding raw material, outside air enters the space between the molding mold and the molding groove 3 through the through hole 412, so that a vacuum environment between the molding mold and the molding groove 3 is avoided, and the ejector pin 405 can eject the molding raw material more quickly and efficiently.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Quick ejection mechanism of injection mold of high-efficient drawing of patterns, including base (1) and mould body (2), install in the middle of the upper surface of base (1) mould body (2), its characterized in that: be equipped with shaping groove (3) in the middle of the upper surface of mould body (2), the inside lower extreme of mould body (2) is equipped with movable groove (5), install quick demoulding mechanism (4) between base (1) and mould body (2), quick demoulding mechanism (4) are including thimble (405) and closing plate (408), thimble (405) are equipped with a plurality of, the upper surface at backup pad (404) is installed respectively in thimble (405), the upper end of thimble (405) is the activity respectively run through and is installed in the inside of ejecting hole (406), backup pad (404) is movable mounting respectively in the inside of movable groove (5), closing plate (408) movable mounting is in the inside of seal groove (407), the upper surface of mould body (2) is located in seal groove (407).

2. The injection mold rapid ejection mechanism with high-efficiency demolding according to claim 1, characterized in that: the ejection holes (406) are respectively arranged on the inner lower surface of the forming groove (3) in a penetrating mode, the middle of the lower surface of the supporting plate (404) is connected with the upper end of the push rod (403) in a penetrating mode, and the lower end of the push rod (403) movably penetrates through the lower surface of the movable groove (5) and is connected with the output end of the air cylinder (401).

3. The injection mold rapid ejection mechanism with high-efficiency demolding according to claim 2, characterized in that: the air cylinder (401) is installed in the middle of the upper surface of the supporting frame (402), the supporting frame (402) is connected with the lower surface of the base (1), a plurality of through holes (412) penetrate through the sealing groove (407) and the sealing plate (408), and the through holes (412) are parallel to each other.

4. The injection mold rapid ejection mechanism with high-efficiency demolding according to claim 3, characterized in that: the upper end of one side, close to the forming groove (3), of the sealing plate (408) is provided with a plurality of limiting grooves (413), the limiting grooves (413) are parallel to the through holes (412) up and down, and sealing frames (414) are movably mounted in the limiting grooves (413) respectively.

5. The injection mold rapid ejection mechanism with high-efficiency demolding according to claim 4, characterized in that: a first spring (415) is arranged between the sealing frame (414) and the limiting groove (413), one end of the sealing frame (414) is clamped and connected with the through hole (412) close to one side of the forming groove (3), and the lower end of the sealing plate (408) is provided with a push rod (410).

6. The injection mold rapid ejection mechanism with efficient demolding according to claim 5, wherein: the lower extreme of catch bar (410) activity respectively runs through the lower extreme of seal groove (407) and interconnect between connecting plate (411), the activity runs through in the middle of the lower surface of connecting plate (411) installs push rod (403), it is parallel from top to bottom between the upper surface of connecting plate (411) and locating piece (409), the lower surface at base (1) is installed respectively in locating piece (409).

7. The injection mold rapid ejection mechanism with high-efficiency demolding according to claim 6, characterized in that: the lower extreme both sides of push rod (403) are equipped with spout (416) respectively, the inside movable mounting of spout (416) has slider (419) respectively, interconnect between the one end of slider (419) respectively and connecting plate (411), the inside respectively fixed mounting of spout (416) has locating lever (418) and the pole body outside of locating lever (418) is the activity respectively and is run through and install slider (419), is located between lower surface of slider (419) and spout (416) the locating lever (418) outside is equipped with No. two spring (417) respectively.