CN221562147U

CN221562147U - Secondary ejection mechanism

Info

Publication number: CN221562147U
Application number: CN202323199985.9U
Authority: CN
Inventors: 何万古; 魏益民
Original assignee: Guangdong Xiqin Precision Mold Co ltd
Current assignee: Guangdong Xiqin Precision Mold Co ltd
Priority date: 2023-11-24
Filing date: 2023-11-24
Publication date: 2024-08-20
Anticipated expiration: 2033-11-24

Abstract

The utility model provides a secondary ejection mechanism, the on-line screen storage device comprises a base, drive unit and ejecting unit, drive unit sets up the one end at the base, ejecting unit activity sets up on the base, drive unit is connected and provides power for ejecting unit with ejecting unit, ejecting unit includes first thimble board, the second thimble board, push pedal and push pedal thimble, the second thimble board, the push pedal is fixed respectively at the both ends of push pedal thimble, first thimble board and push pedal thimble sliding connection just are located between second thimble board and the push pedal, the second thimble board is connected with drive unit, second thimble board breaks away from the structure linkage setting through the transmission, the transmission breaks away from the structure and includes block and drive block, block installs on the second thimble board and with base swing joint, the concave guide way that is equipped with of base, block is moved along the guide way, the one end and the first thimble board fixed connection of drive block, the other end of drive block is equipped with the block groove, the block sets up in the block groove of holding in a detachable way.

Description

Secondary ejection mechanism

Technical Field

The utility model relates to the technical field of dies, in particular to a secondary ejection mechanism.

Background

At present, after a product is molded in an injection mold, the product is required to be completely removed from the mold through actions such as parting, ejection, demolding and the like. In the existing product release process, the product can be automatically released from the die by ejecting once; however, for products with special shapes, after one ejection, the products still adhere to the mold and cannot automatically fall off, so that the products are not removed smoothly, and the products are easy to deform and ejection marks appear, so that the yield of the products is reduced.

Accordingly, in order to solve the problem that the product cannot be ejected from the mold smoothly after one ejection, a new machine or a new technology is needed to solve the above problem.

Disclosure of utility model

The utility model aims to provide a secondary ejection mechanism to solve the problem that a product cannot be ejected out of a die smoothly after primary ejection at present.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The secondary ejection mechanism comprises a base, a driving unit and an ejection unit, wherein the driving unit is arranged at one end of the base, the ejection unit is movably arranged on the base, the driving unit is connected with the ejection unit and provides power for the ejection unit, the ejection unit comprises a first ejector plate, a second ejector plate, a push plate and a push plate ejector pin, the second ejector plate and the push plate are respectively fixed at two ends of the push plate ejector pin, the first ejector plate is in sliding connection with the push plate ejector pin and is positioned between the second ejector plate and the push plate, the second ejector plate is connected with the driving unit, the second ejector plate is in linkage arrangement with the first ejector plate through a transmission separation structure, the transmission separation structure comprises a clamping block and a transmission block, the clamping block is arranged on the second ejector plate and is movably connected with the base, the base is concavely provided with a guide groove which extends outwards along the forward direction, one end of the transmission block is fixedly connected with the first ejector plate, and the other end of the transmission block is provided with a clamping groove which is arranged in the clamping groove in a separable manner; when the driving unit works to push the second ejector plate to move forwards, the second ejector plate drives the clamping block to move forwards, the clamping block moves forwards and outwards along the guide groove, the clamping block clamped in the clamping groove pushes the transmission block to enable the first ejector plate to move forwards, when the clamping block is separated from the clamping groove, the transmission block and the first ejector plate stop moving, and the driving unit works to continuously push the second ejector plate to push the push plate forwards.

Further, the guide groove is provided with a clamping section and a disengaging section, and the clamping section is positioned behind the disengaging section.

Further, the space between the clamping section and the transmission block is smaller than the space between the separation section and the transmission block, and when the clamping block is positioned at the clamping section, the clamping block is clamped in the clamping groove; when the clamping block is in the disengaging section, the clamping block is disengaged from the clamping groove.

Further, a guide needle matched with the guide groove is arranged on the clamping block, and the guide needle slides along the guide groove.

Further, the guide needle is perpendicular to the base, and the diameter of the guide needle is smaller than the distance between two opposite side walls of the guide groove.

Further, a groove is formed at the bottom of the second ejector plate corresponding to the transmission block, and the transmission block is movably arranged in the groove.

Further, a movable groove is formed in the bottom of the second ejector pin plate corresponding to the clamping block, the movable groove is communicated with the groove, and the clamping block is movably arranged in the movable groove.

Further, the transmission disengaging structure further comprises a spring, and the spring is arranged in the movable groove and is positioned between the second ejector plate and the clamping block.

Further, the clamping block is limited to move in the movable groove of the second ejector plate through a pressing block.

Further, the bottom of the transmission block is provided with a limit groove, the base is provided with a limit bulge corresponding to the limit groove, and the limit groove is matched with the limit bulge.

The secondary ejection mechanism has the beneficial effects that: not only can the product be smoothly ejected from the die, but also the deformation of the product in the ejection process is avoided, and the product yield is improved.

Drawings

FIG. 1 is a perspective view of a secondary ejection mechanism of the present utility model;

FIG. 2 is an exploded perspective view of a secondary ejection mechanism shown in FIG. 1;

FIG. 3 is a perspective view of an ejector unit of the secondary ejector mechanism shown in FIG. 1;

FIG. 4 is a partial exploded perspective view of the ejector unit shown in FIG. 3;

FIG. 5 is a perspective view of a drive block of the ejector unit shown in FIG. 3;

FIG. 6 is a perspective view of the base of the secondary ejection mechanism shown in FIG. 1;

FIG. 7 is an enlarged perspective view of the base shown in FIG. 6 at A;

FIG. 8 is a partial cross-sectional view of the secondary ejection mechanism shown in FIG. 1;

fig. 9 is an enlarged cross-sectional view of the secondary ejection mechanism shown in fig. 8 at B.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

The terms first, second, third, fourth and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like in the description and the claims of the present utility model refer to the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are merely for clarity and convenience of description of the present utility model, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-3, fig. 5, fig. 6 and fig. 9, a secondary ejection mechanism includes a base 10, a driving unit 20 and an ejection unit 30, wherein the driving unit 20 is disposed at one end of the base 10, the ejection unit 30 is movably disposed on the base 10, the driving unit 20 is connected with the ejection unit 30 and provides power for the ejection unit 30, the ejection unit 30 includes a first ejector plate 31, a second ejector plate 32, a push plate 33 and a push plate ejector 34, the second ejector plate 32 and the push plate 33 are respectively fixed at two ends of the push plate ejector 34, the first ejector plate 31 is slidably connected with the push plate ejector 34 and is disposed between the second ejector plate 32 and the push plate 33, the second ejector plate 32 is movably disposed with the driving unit 20, the second ejector plate 32 and the first ejector plate 31 are disposed through a transmission disengaging structure, the transmission disengaging structure includes a clamping block 35 and a transmission block 36, the clamping block 35 is mounted on the second ejector plate 32 and is disposed at one end of the base 10, and is movably disposed along the transmission groove 361, and the transmission groove 35 is disposed along the other end of the transmission groove 11 and is extended outwards;

When the driving unit 20 works to push the second ejector plate 32 to move forward, the second ejector plate 32 drives the clamping block 35 to move forward, the clamping block 35 moves forward and outward along the guiding groove 11, the clamping block 35 clamped in the clamping groove 361 drives the transmission block 36 to move the first ejector plate 31 forward, and when the clamping block 35 is separated from the clamping groove 361, the transmission block 36 and the first ejector plate 31 stop moving, and the driving unit 20 works to continuously push the second ejector plate 32 to push the push plate 33 forward.

More specifically, the secondary ejection mechanism further includes a first fixing plate 40, a second fixing plate 50, and a connecting rod 60. The second fixing plate 50 is fixed at one end of the base 10 provided with the driving unit 20 and is perpendicular to the base 10, the driving unit 20 is fixed on the second fixing plate 50, the output end 21 of the driving unit 20 protrudes toward the second ejector plate 32, the output end 21 is connected with the second ejector plate 32 through the connecting rod 60, and the driving unit 20 provides power for the movement of the second ejector plate 32 through the connecting rod 60. The first fixing plate 40 is fixed at the other end of the base 10 where the second fixing plate 50 is fixed and is perpendicular to the base 10, the first fixing plate 40 is located between the push plate 33 and the first ejector plate 31, the push plate ejector pins 34 penetrate through the first fixing plate 40, and the first fixing plate 40 provides support for the ejector unit 30, so that the ejector unit 30 is more stable in the ejection process.

More specifically, the retaining block 35 is provided with a guide pin 351 that cooperates with the guide groove 11, and the guide pin 351 slides along the guide groove 11. The guide pin 351 is perpendicular to the base 10, and the diameter of the guide pin 351 is smaller than the distance between two opposite side walls of the guide groove 11.

In this embodiment, the second ejector plate 32 is connected to the ejector pins 34 through a connecting plate 37, and the connecting plate 37 is fixedly connected to the ejector pins 34. The driving unit 20 is an oil cylinder, and the oil cylinder can provide stable power, has a simple structure and reliable work, and can ensure that the ejection unit 30 has stable and gapless ejection action when ejecting a product so as to avoid damaging the product.

From above, the secondary ejection mechanism provided by the utility model automatically breaks away from and stops moving after the first ejector plate 31 is ejected through the cooperation of the transmission breaking structure and the guide groove 11, and the second ejector plate 32 continuously moves, so that the secondary ejection of the secondary ejection mechanism is realized; the force applied during ejection can be reduced by utilizing the secondary ejection relative to the primary ejection, and the product damage caused during ejection is avoided. Therefore, the secondary ejection mechanism not only enables the product to be ejected out of the die smoothly, but also avoids deformation of the product in the ejection process, and improves the product yield.

Referring to fig. 3, 5 and 7-9, the guide groove 11 has a clamping section 111 and a disengaging section 112, the clamping section 111 is located behind the disengaging section 112, and the distance between the clamping section 111 and the driving block 36 is smaller than the distance between the disengaging section 112 and the driving block 36. When the guide pins 351 of the clamping block 35 are positioned at the clamping section 111, the clamping block 35 is clamped in the clamping groove 361 so that the second ejector plate 32 drives the first ejector plate 31 to move; when the guide pins 351 of the holding block 35 are positioned at the disengaging section 112, the holding block 35 is disengaged from the holding groove 361 to stop the movement of the first ejector plate 31. Through the cooperation of the clamping groove 361 and the clamping block 35 and the movement of the guide needle 351 along the clamping section 111 and the separating section 112, the clamping block 35 is clamped or separated from the clamping groove 361, so that the first ejector plate 31 is automatically separated from and stopped moving after being ejected, and the second ejector plate 32 continuously moves, thereby realizing the effect of secondary ejection.

Referring to fig. 3, 4, 7 and 8, a groove 321 is formed at the bottom of the second ejector plate 32 corresponding to the driving block 36, the driving block 36 is movably disposed in the groove 321, and the driving block 36 can pass through the groove 321 and is in moving fit with the holding block 35.

More specifically, the bottom of the second ejector plate 32 is provided with a movable groove 322 corresponding to the clamping block 35, the movable groove 322 is communicated with the groove 321, and the clamping block 35 is movably disposed in the movable groove 322. When the guide pin 351 is positioned at the clamping section 111 of the guide groove 11, the clamping block 35 is clamped in the clamping groove 361 of the transmission block 36; during the process that the guide needle 351 moves from the clamping section 111 to the disengaging section 112, the clamping block 35 is pulled by the guide needle 351, the clamping block 35 gradually moves along the movable groove 322 in a direction away from the groove 321 until the clamping block 35 is separated from the clamping groove 361, so that the clamping block 35 is separated from the transmission block 36, and the first ejector plate 31 stops moving.

More specifically, the retaining block 35 is restricted from moving in the moving groove 322 of the second ejector plate 32 by a pressing block 39. The pressing block 39 is fixed to the second ejector plate 32 by a bolt, and the pressing block 39 prevents the holding block 35 from falling out of the movable groove 322.

Referring to fig. 4 and 7-9, the transmission disengaging structure further includes a spring 38, wherein the spring 38 is disposed in the movable slot 322 and located between the second ejector plate 32 and the retaining block 35. The retaining block 35 is provided with a spring hole 352 along a direction away from the groove 321, one end of the spring 38 is fixed in the spring hole 352, and the other end of the spring 38 abuts against the side wall of the movable groove 322 facing the groove 321.

When the guide pin 351 is located at the clamping section 111 of the guide groove 11, the clamping block 35 is clamped in the clamping groove 361 of the transmission block 36, the spring 38 is in a compressed state, and two ends of the spring 38 respectively abut against the side wall of the movable groove 322 facing the groove 321 and the clamping block 35, so that the clamping block 35 is ensured to be completely clamped in the clamping groove 361.

Referring to fig. 3, 5 and 6, a limiting groove 362 is formed at the bottom of the driving block 36, a limiting protrusion 12 is formed on the base 10 corresponding to the limiting groove 362, and the limiting groove 362 is matched with the limiting protrusion 12, so that the driving block 36 moves along the limiting protrusion 12, and the first ejector pin plate 31 is ensured to be ejected more stably.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The secondary ejection mechanism is characterized by comprising a base, a driving unit and an ejection unit, wherein the driving unit is arranged at one end of the base, the ejection unit is movably arranged on the base, the driving unit is connected with the ejection unit and provides power for the ejection unit, the ejection unit comprises a first ejector plate, a second ejector plate, a push plate and a push plate ejector pin, the second ejector plate and the push plate are respectively fixed at two ends of the push plate ejector pin, the first ejector plate is in sliding connection with the push plate ejector pin and is positioned between the second ejector plate and the push plate, the second ejector plate is connected with the driving unit, the second ejector plate is in linkage arrangement with the first ejector plate through a transmission disengaging structure, the transmission disengaging structure comprises a clamping block and a transmission block, the clamping block is arranged on the second ejector plate and is movably connected with the base, the base is concavely provided with a guide groove which extends in an outward expanding way, the clamping block moves along the guide groove, one end of the transmission block is in a clamping block is in a way of being separated from the first ejector pin, and the other end of the transmission block is fixedly arranged in the transmission groove;

When the driving unit works to push the second ejector plate to move forwards, the second ejector plate drives the clamping block to move forwards, the clamping block moves forwards and outwards along the guide groove, the clamping block clamped in the clamping groove pushes the transmission block to enable the first ejector plate to move forwards, when the clamping block is separated from the clamping groove, the transmission block and the first ejector plate stop moving, and the driving unit works to continuously push the second ejector plate to push the push plate forwards.

2. A secondary ejection mechanism as in claim 1, wherein the guide slot has a gripping section and a disengagement section, the gripping section being positioned rearward of the disengagement section.

3. The secondary ejection mechanism of claim 2, wherein a spacing between the gripping section and the drive block is less than a spacing between the disengagement section and the drive block, and the gripping block is gripped in the gripping groove when the gripping block is in the gripping section; when the clamping block is positioned in the separation section, the clamping block is separated from the clamping groove.

4. The secondary ejection mechanism of claim 1, wherein the retaining block is provided with a guide pin that mates with the guide slot, the guide pin sliding along the guide slot.

5. The secondary ejection mechanism of claim 4, wherein the guide pin is perpendicular to the base and has a diameter less than the distance between the opposing sidewalls of the guide slot.

6. The secondary ejection mechanism of claim 1, wherein a groove is formed in the bottom of the second ejector plate corresponding to the transmission block, and the transmission block is movably disposed in the groove.

7. The secondary ejection mechanism of claim 6, wherein a movable groove is formed at the bottom of the second ejector plate corresponding to the clamping block, the movable groove is communicated with the groove, and the clamping block is movably arranged in the movable groove.

8. The secondary ejection mechanism of claim 7, wherein the drive release mechanism further comprises a spring disposed within the movable slot and between the second ejector plate and the catch block.

9. The secondary ejection mechanism of claim 7, wherein the retaining block is restrained from movement within the movement slot of the second ejector plate by a press block.

10. The secondary ejection mechanism of claim 1, wherein the bottom of the driving block has a limiting groove, the base has a limiting protrusion corresponding to the limiting groove, and the limiting groove is matched with the limiting protrusion.