CN110962310A

CN110962310A - Injection mold with ejection device

Info

Publication number: CN110962310A
Application number: CN201911213590.5A
Authority: CN
Inventors: 陈学究; 卜庆飞; 张俊
Original assignee: Luzhi Aodun Automation Equipment Factory Wuzhong District
Current assignee: Luzhi Aodun Automation Equipment Factory Wuzhong District
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-04-07

Abstract

The invention discloses an injection mold with an ejection device, which belongs to the technical field of injection molds and comprises an oil tank base, wherein lifting blocks are slidably sleeved on the outer walls of four groups of tensioning bolts, a return spring is sleeved on the outer wall of each tensioning bolt, an upper mold is arranged at the center of the outer wall at the bottom of each lifting block, a screw hole is formed in the center of the outer wall at the top of a frame, a connecting sleeve is arranged in the screw hole, a lower mold is arranged at the top of the connecting sleeve, a hydraulic cylinder is upwards reset to enable the upper mold to ascend, the return spring is reset to avoid the upper mold and the lower mold from being unable to separate, a fault ejection effect is achieved, the mold opening is convenient, when a movable block ascends to open the mold, the movable block upwards ejects a workpiece in an inner cavity of the lower mold, the spring is in a stretching state at the moment, and, need not the manual work and carry out the secondary operation, improved the efficiency of production.

Description

Injection mold with ejection device

Technical Field

The invention relates to the technical field of injection molds, in particular to an injection mold with an ejection device.

Background

In each cycle of injection molding, a plastic part must be taken out of a mold cavity, a mechanism for completing the action of taking out the plastic part is an ejection mechanism, in the prior art, a driving device is mostly used for driving an ejection rod to push the mold out of the mold cavity, then the mold is opened manually, and after the mold is opened, a workpiece needs to be taken out manually, so that the operation flow is complicated, the production efficiency is reduced, and therefore, an injection mold with the ejection device is provided.

Disclosure of Invention

The present invention is directed to an injection mold with an ejection device, so as to solve the problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme: an injection mold with an ejection device comprises an oil tank frame, wherein a hydraulic cylinder is arranged at the center of the outer wall at the top of the oil tank frame, a frame is arranged on the outer wall at the top of the oil tank frame, sliding grooves are formed in the inner walls of the left side and the right side of the frame, a mounting plate is slidably connected in the two groups of sliding grooves, the output end at the top of the hydraulic cylinder is welded with the bottom of the mounting plate, movable blocks are arranged at the top of the mounting plate, screw holes are formed in four corners of the outer wall at the top of each movable block, tension bolts are arranged in the screw holes, the tops of the tension bolts extend to the outer wall at the top of the frame, four groups of the tension bolts are slidably sleeved with lifting blocks, reset springs are sleeved on the outer walls of the tension bolts, the tops and the bottoms, and a connecting sleeve is arranged in the screw hole, and a lower die is arranged at the top of the connecting sleeve.

Further, the inner wall of the bottom of the lower die is provided with a mounting groove, the left side and the right side of the inner wall of the bottom of the mounting groove are both provided with grooves, an ejector plate is connected to the inner cavity of the mounting groove in a sliding mode, an ejector rod is movably inserted into the middle of the inner wall of the bottom of the groove, the top of the ejector rod is fixedly connected with the bottom of the ejector plate, the bottom of the ejector rod extends to the inner cavity of the frame, springs are arranged on the left side and the right side of the joint of the inner wall of the bottom of the groove and the ejector rod, and the tops of the.

Further, the fixed slide bar that is equipped with in liftout plate bottom outer wall center, the slide bar bottom extends to the connecting sleeve inner chamber, slide bar hoop outer wall bottom is equipped with the external screw thread, just slide bar hoop outer wall bottom thread bush is equipped with the stopper.

Furthermore, the springs on the inner wall of the bottom of the groove are arranged in a bilateral symmetry mode, and three to four groups of springs are arranged in the front and at the back of the groove.

Furthermore, the four corners of the outer wall of the bottom of the mounting plate are provided with screws, and the four corners of the outer wall of the top of the movable block are provided with screw holes matched with the screws.

Further, the welding of oil tank frame bottom has the base, and base top outer wall four corners all is equipped with the mounting hole.

Compared with the prior art, the invention has the beneficial effects that: when the die sinking, the pneumatic cylinder upwards resets and makes to go up the mould and rise, reset spring resets and can avoid going up the unable separation of mould and lower mould, play trouble ejecting effect, the die sinking of being convenient for, when the movable block rises and carries out the die sinking, the movable block upwards pushes up knock-out rod and liftout plate, it is ejecting with the work piece of lower mould inner chamber, the spring at this moment is in tensile state, when the pneumatic cylinder drives the movable block downstream and moulds plastics, the spring drives the liftout plate and resets downwards, need not the manual work and operate once more, the efficiency of production has been improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the installation of the lower mold and the frame of the present invention.

In the figure: 1. an oil tank base; 2. a hydraulic cylinder; 3. a frame; 4. mounting a plate; 5. a movable block; 6. tightening the bolts; 7. a lifting block; 8. a return spring; 9. an upper die; 10. a lower die; 11. a connecting sleeve; 12. mounting grooves; 13. a groove; 14. ejecting the plate; 15. ejecting the rod; 16. a spring; 17. a slide bar; 18. and a limiting block.

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.

The invention provides a technical scheme that: an injection mold with an ejection device, please refer to fig. 1, which comprises an oil tank base 1, a hydraulic cylinder 2 is arranged at the center of the outer wall of the top of the oil tank base 1, a frame 3 is arranged on the outer wall of the top of the oil tank base 1, sliding grooves are arranged on the inner walls of the left side and the right side of the frame 3, two groups of sliding grooves are connected with a mounting plate 4 in a sliding way, the output end of the top of the hydraulic cylinder 2 is welded with the bottom of the mounting plate 4, a movable block 5 is arranged at the top of the mounting plate 4, four corners of the outer wall of the top of the movable block 5 are provided with screw holes, tensioning bolts 6 are arranged in the screw holes, the tops of the tensioning bolts 6 extend to the outer wall of the top of the frame 3, lifting blocks 7 are sleeved on the outer walls of the four groups of tensioning, the center of the outer wall of the top of the rack 3 is provided with a screw hole, a connecting sleeve 11 is arranged in the screw hole, the top of the connecting sleeve 11 is provided with a lower die 10, when the die is closed, the hydraulic cylinder 2 drives the mounting plate 4 and the movable block 5 to descend, the tensioning bolt 6 drives the lifting block 7 and the upper die 9 to descend for closing the die, the reset spring 8 is compressed, when the die is opened, the hydraulic cylinder 2 resets upwards to enable the upper die 9 to ascend, the reset spring 8 resets to avoid the situation that the upper die 9 and the lower die 10 cannot be separated, a fault ejection effect;

referring to fig. 1-2, the inner wall of the bottom of the lower mold 10 is provided with a mounting groove 12, the left and right sides of the inner wall of the bottom of the mounting groove 12 are provided with grooves 13, the inner cavity of the mounting groove 12 is slidably connected with an ejector plate 14, the mounting groove 12 plays a role of limiting the descending displacement of the ejector plate 14, so that the outer wall of the top of the ejector plate 14 and the inner wall of the bottom of the lower mold 10 are in the same horizontal line, without affecting injection molding, the middle part of the inner wall of the bottom of the groove 13 is movably inserted with ejector rods 15, the tops of two sets of ejector rods 15 are fixedly connected with the bottom of the ejector plate 14, the bottom of the ejector rod 15 extends to the inner cavity of the frame 3, the left and right sides of the connection part of the inner wall of the bottom of the groove 13 and the ejector rod 15 are provided with springs 16, the tops of the springs 16 are fixedly connected with the outer wall of the bottom of the ejector plate 14, when the hydraulic cylinder 2 drives the movable block 5 to move downwards for injection molding, the spring 16 drives the ejector plate 14 to reset downwards;

referring to fig. 2, a sliding rod 17 is fixedly arranged at the center of the outer wall of the bottom of the ejector plate 14, the sliding rod 17 can keep the lifting stability of the ejector plate 14, the bottom of the sliding rod 17 extends to the inner cavity of the connecting sleeve 11, an external thread is arranged at the bottom of the outer wall of the sliding rod 17, a limiting block 18 is sleeved on the bottom of the outer wall of the sliding rod 17 in a threaded manner, the limiting block 18 plays a role in limiting the lifting height of the ejector plate 14, and the situation that the spring 16 cannot be reset due;

referring to fig. 2, the springs 16 on the inner wall of the bottom of the groove 13 are symmetrically arranged left and right, and three to four groups of springs 16 are arranged in front and back, so that the ejector plate 14 is uniformly stressed and the ejector plate 14 is conveniently and rapidly reset by increasing the number of the springs 16;

referring to fig. 1, screws are arranged at four corners of the outer wall of the bottom of the mounting plate 4, screw holes matched with the screws are arranged at four corners of the outer wall of the top of the movable block 5, so that the movable block 5 can be conveniently disassembled and assembled, and the movable block 5, the tensioning bolt 6 and the reset spring 8 can be replaced;

referring to fig. 1, a base is welded at the bottom of an oil tank base 1, four corners of the outer wall of the top of the base are provided with mounting holes, and a hydraulic cylinder 2 is arranged at the bottom and has a lower center of gravity, so that the die assembly and die sinking operation of the device is more stable.

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

1. The utility model provides an injection mold with ejecting device, includes oil tank frame (1), oil tank frame (1) top outer wall center is equipped with pneumatic cylinder (2), its characterized in that: the oil tank frame (1) top outer wall is equipped with frame (3), the frame (3) left and right sides inner wall all is equipped with the spout, and sliding connection has mounting panel (4) in two sets of spouts, pneumatic cylinder (2) top output and mounting panel (4) bottom welding, mounting panel (4) top is equipped with movable block (5), movable block (5) top outer wall four corners all is equipped with the screw, and is equipped with tie bolt (6) in the screw, the top of tie bolt (6) extends to frame (3) top outer wall, four groups tie bolt (6) outer wall sliding sleeve is equipped with elevator (7), tie bolt (6) outer wall sleeve is equipped with reset spring (8), the top and the bottom of reset spring (8) respectively with elevator (7) bottom outer wall and frame (3) top outer wall fixed connection, elevator (7) bottom outer wall center is equipped with mould (9), the improved die is characterized in that a screw hole is formed in the center of the outer wall of the top of the rack (3), a connecting sleeve (11) is arranged in the screw hole, and a lower die (10) is arranged at the top of the connecting sleeve (11).

2. An injection mold having an ejection device according to claim 1, wherein: lower mould (10) bottom inner wall is equipped with mounting groove (12), the mounting groove (12) bottom inner wall left and right sides all is equipped with recess (13), mounting groove (12) inner chamber sliding connection has liftout plate (14), recess (13) bottom inner wall middle part activity is pegged graft has knock-out pole (15), and is two sets of knock-out pole (15) top and liftout plate (14) bottom fixed connection, knock-out pole (15) bottom extends to frame (3) inner chamber, the left and right sides of recess (13) bottom inner wall and knock-out pole (15) junction all is equipped with spring (16), spring (16) top and liftout plate (14) bottom outer wall fixed connection.

3. An injection mold having an ejection device according to claim 2, wherein: ejector plate (14) bottom outer wall center is fixed and is equipped with slide bar (17), slide bar (17) bottom extends to connecting sleeve (11) inner chamber, slide bar (17) hoop outer wall bottom is equipped with the external screw thread, just slide bar (17) hoop outer wall bottom thread bush is equipped with stopper (18).

4. An injection mold having an ejection device according to claim 2, wherein: the springs (16) on the inner wall of the bottom of the groove (13) are arranged in a bilateral symmetry mode, and three to four groups of the springs (16) are arranged in the front and at the back.

5. An injection mold having an ejection device according to claim 1, wherein: the mounting panel (4) bottom outer wall four corners all is equipped with the screw, movable block (5) top outer wall four corners all is equipped with the screw with screw matched with.

6. An injection mold having an ejection device according to claim 1, wherein: the welding of oil tank frame (1) bottom has the base, and base top outer wall four corners all is equipped with the mounting hole.