CN216544412U

CN216544412U - Injection molding machine mold closing device convenient for demolding

Info

Publication number: CN216544412U
Application number: CN202122392179.8U
Authority: CN
Inventors: 林楠
Original assignee: Linyi Xinda Hardware Tools Co ltd
Current assignee: Linyi Xinda Hardware Tools Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-05-17
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to the technical field of injection molding, and discloses an injection molding machine mold closing device convenient for demolding, which comprises a movable mold and a fixed mold, wherein a group of positioning columns are fixedly attached to four corners of one side of the fixed mold, which is back to the movable mold, one ends of the four groups of positioning columns, which are back to the fixed mold, are fixedly arranged at four corners of one side of a substrate, which is towards the fixed mold, a group of ejector plates penetrate through a gap in the middle of the substrate, and one side of each ejector plate, which is towards the fixed mold, is coaxially and fixedly provided with a guide rod. This injection molding machine closing device of convenient drawing of patterns, can be driven through locating piece and outer loop and rotate certain angle, and can utilize when outer loop rotates fixed ejecting block in advance on its surface to carry out the top to supplementary thimble, thereby make the connection piece can drive the less distance of the slower removal of loop bar and supplementary thimble, thereby make and to produce the separation and avoid causing excessively to drag the damage its inner surface to the injection molding between injection molding and the cover half, the ejecting convenience and the stability of injection molding have been improved in the device use.

Description

Injection molding machine mold closing device convenient for demolding

Technical Field

The utility model relates to the technical field of injection molding, in particular to a mold closing device of an injection molding machine, which is convenient for demolding.

Background

The injection molding refers to injecting the heated and melted plastic into a mold cavity from an injection molding machine at high pressure, cooling and solidifying to obtain a molded product, and taking out the injection molded part by demolding operation after injection molding and cooling.

When the injection molding is demolded under the prior art, the injection molding is often affected by adhesion between the injection molding and the fixed die and is not easy to separate, and the injection molding is easy to damage when the injection molding is ejected out by using large force during demolding.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the injection molding machine mold closing device convenient for demolding, and solves the problems that the injection molding piece is inconvenient to eject and is easy to damage in the prior art.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a mold closing device of an injection molding machine convenient for demolding comprises a movable mold and a fixed mold, wherein a group of positioning columns are fixedly attached to four corners of one side of the fixed mold, which is back to the movable mold, of the fixed mold, four groups of positioning columns are fixedly arranged at four corners of one side of a substrate, which is towards the fixed mold, of the fixed mold, a group of ejection plates are arranged in a gap in the middle of the substrate in a penetrating manner, a guide rod is coaxially and fixedly arranged on one side of the ejection plates, which is towards the fixed mold, of the fixed mold, a group of connecting pieces are slidably sleeved on the outer side wall of the guide rod, a group of loop rods which penetrate through the fixed mold and are attached to the movable mold are fixedly arranged in the middle of one side of the connecting pieces, one end of the guide rod, which faces towards the loop rods, penetrates through the inner cavity of the loop rods, four groups of auxiliary thimbles which are fixedly connected with the connecting pieces and penetrate through the fixed mold and are arranged on the outer sides of the guide rods, and springs which are respectively connected with the ejection plates and fixed with the connecting pieces are arranged between the ejection plates and the connecting pieces, the outer side of the ejector plate is provided with a group of outer ring pieces in a clearance mode, four groups of pre-ejector blocks are uniformly and fixedly arranged on one side, facing the connecting piece, of the outer ring pieces, a group of positioning blocks are fixedly arranged on the outer side wall of each outer ring piece, the outer ring pieces and the positioning blocks penetrate through the guide grooves, and the guide grooves are formed in the middle of the base plate and penetrated through by the ejector plate.

Preferably, one end of the auxiliary ejector pin facing the outer ring piece and one end of the pre-ejector block facing the connecting piece are both hemispherical, and the height of the pre-ejector block is equal to that of the hemispherical part of the auxiliary ejector pin.

Preferably, each group of the pre-ejection block is located between two adjacent groups of the auxiliary thimbles, and the distance between the pre-ejection block and the two adjacent groups of the auxiliary thimbles is equal.

Preferably, the diameter of the inner cavity of the loop bar is matched with the diameter of the guide bar, and the length of the inner cavity of the loop bar is larger than the length of the guide bar penetrating through the connecting piece part.

Preferably, the guide groove is formed by communicating a circular groove and an arc-shaped groove, the positioning block is positioned in the arc-shaped groove, the outer ring piece is positioned in the circular groove, and the included angle between the inner walls of two opposite sides of the arc-shaped groove and the center of the circular groove is ninety degrees.

Preferably, one side that the reference column dorsad the cover half is fixed with driving motor's output, one side that the liftout plate dorsad the cover half is fixed with the output of pneumatic cylinder, and driving motor's output and pneumatic cylinder's output all pass the guide way.

(III) advantageous effects

Compared with the prior art, the utility model provides the injection molding machine mold closing device convenient for demolding, which has the following beneficial effects:

1. this injection molding machine closing device of convenient drawing of patterns, can be driven through locating piece and outer loop and rotate certain angle, and can utilize when outer loop rotates fixed ejecting block in advance on its surface to carry out the top to supplementary thimble, thereby make the connection piece can drive the less distance of the slower removal of loop bar and supplementary thimble, thereby make and to produce the separation and avoid causing excessively to drag the damage its inner surface to the injection molding between injection molding and the cover half, the ejecting convenience and the stability of injection molding have been improved in the device use.

2. This injection molding machine closing device of convenient drawing of patterns can be promoted through the liftout plate and remove to and the liftout plate can utilize the spring to drive the connection piece, loop bar and supplementary thimble remove thereupon, makes the injection molding can be ejecting the dropping completely with the cover half separation after having certain clearance, has improved the convenience that the device used the ejecting operation of injection molding, and makes the injection molding atress comparatively even, reduces the damage that causes the injection molding.

3. This injection molding machine closing device of convenient drawing of patterns, shape setting through the guide way self to and position and shape fit between guide way and outer loop and the locating piece, make the deflection angle of outer loop and locating piece can receive the restriction, avoid it to produce stability that excessively rotates the influence device and use, through the size cooperation between loop bar and the guide bar, make the loop bar comparatively smooth and easy in the slip in the guide bar outside, avoid producing the friction and interfere.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of the ejector plate and its connection structure according to the present invention.

In the figure: 1. moving the mold; 2. fixing a mold; 3. a positioning column; 4. a substrate; 5. ejecting the plate; 6. a guide bar; 7. a spring; 8. connecting sheets; 9. a loop bar; 10. an auxiliary thimble; 11. an outer ring plate; 12. pre-jacking blocks; 13. positioning blocks; 14. a guide groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an injection molding machine MOLD CLAMPING APPARATUS of convenient drawing of patterns, including movable mould 1 and cover half 2, cover half 2 is all laminated and is fixed with a set of reference column 3 in the one side four corners of movable mould 1 dorsad, the one end of four group's reference columns 3 in the cover half 2 all sets firmly in base plate 4 towards one side four corners of cover half 2, a set of liftout plate 5 is worn to be equipped with in the middle part clearance of base plate 4, liftout plate 5 has set firmly a guide bar 6 towards one side coaxial of cover half 2, slidable ground cover is equipped with a set of connection piece 8 on the lateral wall of guide bar 6, connection piece 8 sets firmly a set of loop bar 9 that passes cover half 2 and laminate with movable mould 1 towards one side middle part of cover half 2, the inner chamber of loop bar 9 is passed towards the one end of loop bar 9 to guide bar 6, the outside evenly distributed of loop bar 9 has four groups and connection piece 8 fixed connection and passes cover half 2 and with the supplementary thimble 10 of movable mould 1 laminating, be provided with a set up between liftout plate 5 and connection piece 8 and the cover and guide bar 6 outside and both ends respectively with

liftout plate

5 and 8 fixed connection piece The spring 7 can be pushed to move through the ejector plate 5, and the ejector plate 5 can drive the connecting sheet 8, the loop bar 9 and the auxiliary thimble 10 to move along with the spring 7, so that an injection molding piece can be completely ejected and fall off after being separated from the fixed mold 2 and having a certain gap, the convenience of the device for ejecting the injection molding piece is improved, the injection molding piece is stressed uniformly, the damage to the injection molding piece is reduced, a group of outer ring sheets 11 are arranged at the gap of the outer side of the ejector plate 5, four groups of pre-ejecting blocks 12 are uniformly and fixedly arranged on one side of the outer ring sheets 11, which faces the connecting sheet 8, a group of positioning blocks 13 are fixedly arranged on the outer side wall of the outer ring sheets 11, the outer ring sheets 11 and the positioning blocks 13 both penetrate through the guide groove 14, the guide groove 14 is formed by communicating a circular groove and an arc groove, the positioning blocks 13 are positioned in the arc groove, the outer ring sheets 11 are positioned in the circular groove, the included angle between the inner walls of the two opposite sides of the arc groove and the center of the circular groove is ninety degrees, through the shape arrangement of the guide groove 14 and the position and shape matching between the guide groove 14 and the outer ring plate 11 and the positioning block 13, the deflection angles of the outer ring plate 11 and the positioning block 13 can be limited, the device use stability can be prevented from being influenced by over-rotation, the positioning block 13 and the outer ring plate 11 can be driven to rotate for a certain angle, the pre-ejection block 12 fixed on the surface of the outer ring plate 11 can be used for ejecting the auxiliary ejector pin 10 when the outer ring plate 11 rotates, so that the connecting sheet 8 can drive the sleeve rod 9 and the auxiliary ejector pin 10 to slowly move for a small distance, the injection molding piece can be separated from the fixed mold 2, the inner surface of the injection molding piece can be prevented from being damaged by over-pulling, the convenience and the stability of the injection molding piece in the use of the device are improved, the guide groove 14 is arranged in the middle of the base plate 4 and is penetrated by the ejection plate 5, one side of the positioning column 3, which is back to the fixed mold 2, is fixed with the output end of the driving motor, one side of the ejection plate 5, which is back to the fixed mold 2, is fixed with the output end of the pneumatic cylinder, and the output ends of the driving motor and the pneumatic cylinder both penetrate through the guide groove 14.

Specifically, in order to make the cooperation drive of device comparatively stable, supplementary thimble 10 all sets up to the hemisphere towards the one end of outer loop 11 and the one end of ejector pad 12 towards connection piece 8 in advance to make both can make supplementary thimble 10 be promoted to remove by ejector pad 12 in advance after the contact, and the height of ejector pad 12 equals with the height of supplementary thimble 10 hemisphere portion in advance, avoids in advance that ejector pad 12 protrudes highly too high its top of influence to supplementary thimble 10 and moves.

Specifically, in order to enable the injection molding part to be ejected stably, each group of pre-ejector blocks 12 is located between two adjacent groups of auxiliary ejector pins 10, and the distance between each group of pre-ejector blocks 12 and two adjacent groups of auxiliary ejector pins 10 is equal, so that the pre-ejector blocks 12 can be driven to rotate to push the adjacent auxiliary ejector pins 10 simultaneously, and the four groups of auxiliary ejector pins 10 can apply thrust to the injection molding part uniformly.

Specifically, in order to make the use of device comparatively smooth and easy, the diameter of the inner chamber of loop bar 9 and the diameter looks adaptation of guide bar 6, and the length of the inner chamber of loop bar 9 is greater than the length that guide bar 6 passed the 8 parts of connection piece, through the size fit between loop bar 9 and the guide bar 6 for loop bar 9 is comparatively smooth and easy in the slip in the guide bar 6 outside, avoids producing the friction and interferes.

The working principle is as follows: after the user finishes the injection molding operation and waits for the injection molding part to be cooled, the movable mold 1 can be driven to move a certain distance away from the fixed mold 2, then the driving motor is started firstly, the driving motor drives the positioning block 13 to deflect ninety degrees in the arc-shaped groove in the guide groove 14, the positioning block 13 can drive the outer ring plate 11 to rotate by a corresponding angle therewith, the outer ring plate 11 drives the pre-ejector block 12 to rotate, the pre-ejector block 12 can contact and eject the auxiliary ejector pins 10, at the moment, the connecting sheet 8 can drive the auxiliary ejector pins 10 to stretch the spring 7, the four groups of auxiliary ejector pins 10 and the sleeve rod 9 eject the injection molding part by a small distance, so that a certain separation is slowly generated between the injection molding part and the fixed mold 2, then the pneumatic cylinder is started, the pneumatic cylinder output end drives the ejector plate 5 to move, at the ejector plate 5 can drive the four groups of auxiliary ejector pins 10 and the sleeve rod 9 by utilizing the spring 7 to drive the 8, The sleeve rod 9 and the auxiliary ejector pin 10 move along with the injection molding part, and the sleeve rod 9 and the auxiliary ejector pin 10 are enabled to completely eject the injection molding part out and separate from the fixed mold 2 to fall off.

In conclusion, the injection molding machine mold closing device convenient for demolding can be driven to rotate for a certain angle through the positioning block 13 and the outer ring plate 11, and the pre-ejector block 12 fixed on the surface of the outer ring plate 11 can be used for ejecting the auxiliary ejector pin 10 when the outer ring plate 11 rotates, so that the connecting plate 8 can drive the loop bar 9 and the auxiliary ejector pin 10 to move for a small distance slowly, the injection molding piece can be separated from the fixed mold 2, the injection molding piece is prevented from being excessively pulled to damage the inner surface of the injection molding piece, the convenience and the stability of ejecting the injection molding piece in use of the device are improved, the ejection plate 5 can be pushed to move, the spring 7 can be used for driving the connecting plate 8, the loop bar 9 and the auxiliary ejector pin 10 to move along with the injection molding piece, the injection molding piece can be completely ejected and fall after being separated from the fixed mold 2 and having a certain gap, and the convenience of the ejection operation of the injection molding piece in use of the device is improved, and make the injection molding atress comparatively even, reduce the damage that causes the injection molding, through the shape setting of guide way 14 self, and position and the shape cooperation between guide way 14 and outer ring plate 11 and locating piece 13, make the deflection angle of outer ring plate 11 and locating piece 13 can receive the restriction, avoid it to produce the stability that the excessive rotation influences the device to use, through the size cooperation between loop bar 9 and guide bar 6, make the slip of loop bar 9 in the guide bar 6 outside comparatively smooth and easy, avoid producing the friction and interfering.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a make things convenient for injection molding machine MOLD CLAMPING APPARATUS of drawing of patterns, includes movable mould (1) and cover half (2), its characterized in that: cover half (2) are all laminated and are fixed with a set of reference column (3), four groups in one side four corners of movable mould (1) dorsad the one end of reference column (3) cover half (2) all set firmly in base plate (4) one side four corners towards cover half (2), a set of liftout plate (5) is worn to be equipped with in the middle part clearance of base plate (4), liftout plate (5) are coaxial to have set firmly a guide bar (6) towards one side of cover half (2), the cover is equipped with a set of connection piece (8) on the lateral wall of guide bar (6), connection piece (8) have set firmly a set of loop bar (9) that pass cover half (2) and laminate with movable mould (1) towards one side middle part of cover half (2), the inner chamber of loop bar (9) is passed to guide bar (6) one end towards loop bar (9), the outside evenly distributed of loop bar (9) has four groups and connection piece (8) fixed connection and passes cover half (2) and with supplementary thimble (2) of movable mould (1) laminating (1) (6) 10) The ejection device comprises an ejection plate (5), a group of springs (7) are arranged between the ejection plate (5) and a connecting sheet (8), the springs are sleeved on the outer side of a guide rod (6), two ends of each spring are fixed to the ejection plate (5) and the connecting sheet (8) respectively, a group of outer ring sheets (11) are arranged in a gap on the outer side of the ejection plate (5), four groups of pre-ejection blocks (12) are uniformly and fixedly arranged on one side, facing the connecting sheet (8), of each outer ring sheet (11), a group of positioning blocks (13) are fixedly arranged on the outer side wall of each outer ring sheet (11), the outer ring sheets (11) and the positioning blocks (13) penetrate through guide grooves (14), and the guide grooves (14) are arranged in the middle of a base plate (4) and penetrate through the ejection plate (5).

2. The mold closing device of an injection molding machine facilitating mold release according to claim 1, wherein: one end of the auxiliary ejector pin (10) facing the outer ring sheet (11) and one end of the pre-ejector block (12) facing the connecting sheet (8) are both arranged to be hemispherical, and the height of the pre-ejector block (12) is equal to that of the hemispherical part of the auxiliary ejector pin (10).

3. The mold closing device of an injection molding machine facilitating mold release according to claim 2, wherein: each group of the pre-ejecting block (12) is positioned between two adjacent groups of the auxiliary thimbles (10), and the distance between each group of the pre-ejecting block (12) and the two adjacent groups of the auxiliary thimbles (10) is equal.

4. The mold closing device of an injection molding machine facilitating mold release according to claim 1, wherein: the diameter of the inner cavity of the loop bar (9) is matched with the diameter of the guide bar (6), and the length of the inner cavity of the loop bar (9) is larger than the length of the guide bar (6) penetrating through the connecting piece (8).

5. The mold closing device of an injection molding machine facilitating mold release according to claim 1, wherein: the guide groove (14) is formed by communicating a circular groove and an arc-shaped groove, the positioning block (13) is positioned in the arc-shaped groove, the outer ring piece (11) is positioned in the circular groove, and the included angle between the inner walls of two opposite sides of the arc-shaped groove and the center of the circular groove is ninety degrees.

6. The mold closing device of an injection molding machine facilitating mold release according to claim 1, wherein: reference column (3) one side and the output of driving motor of cover half (2) are fixed dorsad, one side and the output of pneumatic cylinder of liftout plate (5) cover half (2) are fixed dorsad, and driving motor's output and pneumatic cylinder's output all pass guide way (14).