CN212422021U

CN212422021U - Injection mold with lining fixing frame

Info

Publication number: CN212422021U
Application number: CN202020573012.4U
Authority: CN
Inventors: 施冠麟; 姚频
Original assignee: Shanghai Sisuo Mold Forming Co ltd
Current assignee: Shanghai Sisuo Mold Forming Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2021-01-29
Anticipated expiration: 2030-04-16

Abstract

The utility model relates to an injection mold with a lining fixing frame, which comprises an upper template, a lower template, an upper mold core and a lower mold core, wherein the upper mold core and the lower mold core are arranged in a containing cavity of the upper template and the lower template; the vertical two joint posts that are provided with in the die cavity, two joint posts run through lower mold core and with lower mold core threaded connection, the third bush is inserted and is established on the joint post, has seted up two grooves of stepping down on the lower mold core, and two grooves of stepping down all insert and are equipped with the shaping piece, all are equipped with the erection column on two shaping pieces, and the second bush is inserted and is established on the erection column. The utility model discloses the bush is pre-buried in the injection mold, does not need the installation bush behind the injection moulding, promotes production efficiency's effect.

Description

Injection mold with lining fixing frame

Technical Field

The utility model belongs to the technical field of the injection mold and specifically relates to a take injection mold of bush mount is related to.

Background

The injection mold is the most commonly used molding mold in the production of thermoplastic plastic products, the processing equipment corresponding to the injection mold is a plastic injection molding machine, plastic is heated and melted in a bottom heating material cylinder of the injection machine at first, then enters a mold cavity through a nozzle of the injection machine and a pouring system of the mold under the pushing of a screw rod or a plunger of the injection machine, the plastic is cooled, hardened and molded, and the product is obtained after demolding.

Referring to fig. 1, a mount with bush, including support body 25 and through-hole 29, through-hole 29 is vertical to run through the setting at support body 25 length direction both ends, and through-hole 29 is provided with threely, and two three through-holes 29 set up at support body 25 length direction both ends, all joint first bush 26 in the three through-hole 29. The level runs through on the support body 25 has two joint holes 30, all has second bush 27 in two joint holes 30. A third bushing 28 is arranged between the adjacent second bushing 27 and the first bushing 26, the third bushing 28 is vertically arranged on the frame body 25 in a penetrating manner, and the third bushing 28 and the first bushing 26 are arranged in an axis parallel manner.

Because the opening directions of the first bush 26 and the second bush 27 are different, and the lengths of the third bush 28 and the first bush 26 are different, the fixing frame is generally fixed on an injection molding machine firstly in the production process, the frame body 25 is injection molded in the injection molding machine, and then the bushes are manually installed in the holes of the fixing frame. The production of the fixing frame is divided into two steps for production, and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a take injection mold of bush mount, its advantage is that the bush is pre-buried in injection mold, and one shot forming does not need the installation bush behind the injection molding, promotes production efficiency.

The above object of the present invention is achieved by the following technical solutions:

an injection mold with a bushing fixing frame comprises an upper template, a lower template, an upper mold core and a lower mold core, wherein the upper mold core and the lower mold core are arranged in accommodating cavities of the upper template and the lower template; the lower mold core is vertically provided with three support columns, the three support columns penetrate through the lower mold core and are in threaded connection with the lower mold core, and first bushings are inserted into the support columns;

two clamping columns are vertically arranged in the cavity, penetrate through the lower mold core and are in threaded connection with the lower mold core, and third bushings are inserted into the clamping columns;

the lower mold core is provided with two abdicating grooves, two shaping blocks are inserted in the abdicating grooves, two shaping blocks are provided with mounting columns, included angles exist between the mounting columns and the axes of the clamping columns, and second bushings are inserted in the mounting columns.

Through adopting above-mentioned technical scheme, go up the die core and set up the intracavity that holds between cope match-plate pattern and lower bolster with lower die core, go up the die core and inject molten plastics with lower die core compound die in the die cavity, plastics are the cooling shaping in the die cavity. Support column and joint post run through lower bolster and lower bolster, support column and lower bolster threaded connection insert on the support column and establish first bush and insert on the joint post and establish the third bush, directly with first bush and third bush shaping in the frame body in the injection moulding process. The groove of stepping down is used for the card of shaping piece to be gone into, and shaping piece and lower mould core cooperation are shaped, insert on the erection column and establish the second bush, and the second bush shaping has saved the time of installation second bush in the support body at injection moulding in-process, further promotes production efficiency. The detachable installation of the forming block is convenient for the fixed mount to be separated from the die after forming.

The present invention may be further configured in a preferred embodiment as: the utility model discloses a die core structure, including lower mold core, ejector pad, draw bar, cope match-plate pattern, lower mold core width direction one end is equipped with the kicking block, the kicking block has seted up the spout on being close to lower mold core one side, the one end of mounting post is kept away from to the shaping piece is equipped with the slider, the slider slides and sets up in the spout, it has the pull rod to run through on the kicking block, pull rod length direction one end runs through the cope match-plate pattern, the pull rod is kept away from cope match-plate pattern one end and is leaned on to keeping away from lower mold core direction, the pull rod is close to cope match-plate pattern one end and is equipped with the dog, the.

By adopting the technical scheme, the top block is abutted against the forming block, so that the forming precision of the forming block is ensured; the distance between the sliding blocks is controlled by sliding the sliding blocks in the sliding grooves, so that the sliding blocks can be conveniently adjusted to adapt to different requirements. The pull rod penetrates through the upper template and the ejector block and is inserted into the adjusting hole, and the stop block prevents the pull rod from sliding downwards; the pull rod is connected with the inner wall of the adjusting hole in an abutting mode in the injection molding process to prevent the ejector block from sliding towards the direction far away from the lower die core, and product molding precision is guaranteed. After the fixed frame is formed in the mold, the upper mold plate and the lower mold plate are far away from each other, the stop block drives the pull rod to move upwards, the pull rod moves in the adjusting hole, the pull rod upwards drives the ejector block to move towards the direction of keeping away from the lower mold core, the ejector block drives the forming block to move towards the direction of keeping away from the lower mold core, the demolding efficiency of the fixed frame after forming is improved, and the production efficiency of the fixed frame is greatly improved.

The present invention may be further configured in a preferred embodiment as: a guide groove is formed in one surface, close to the upper template, of the lower template, and the ejector block is arranged in the guide groove in a sliding mode.

Through adopting above-mentioned technical scheme, the guide way leads to the glide direction of kicking block, guarantees that the shaping piece business turn over lower mould core is convenient quick, prevents that kicking block glide direction slope from leading to needing the manual work to carry out the repeated positioning to the shaping piece, further promotes production efficiency.

The present invention may be further configured in a preferred embodiment as: a plurality of ejector rod holes vertically penetrate through the lower mold core, ejector rods are arranged in the ejector rod holes, and the ejector rods penetrate through the lower mold plate.

Through adopting above-mentioned technical scheme, the ejector pin hole is used for passing of ejector pin, and the mount shaping back, cope match-plate pattern and lower bolster keep away from each other, and the ejector pin is to being close to the motion of cope match-plate pattern direction, and the ejector pin is ejecting with the mount finished product, promotes the efficiency of unloading, further promotes production efficiency.

The present invention may be further configured in a preferred embodiment as: the guide groove is provided with pressing plate grooves along the inner side walls of the length direction central line symmetry, the top block is provided with pressing plates along the two side walls of the length direction of the guide groove, and the pressing plates are arranged in the pressing plate grooves in a sliding mode.

Through adopting above-mentioned technical scheme, the clamp plate slides at the clamp plate inslot, and the clamp plate groove is tight with the clamp plate clamp, prevents that the clamp plate from taking place to follow guide way length direction's slope under the effect of frictional force, further promotes the direction precision of kicking block, effectively reduces artifical location to the shaping piece, further promotes production efficiency.

The present invention may be further configured in a preferred embodiment as: the guide groove is provided with a limit screw on the surface away from the upper die plate, and the limit screw is arranged at one end of the guide groove away from the lower die core.

Through adopting above-mentioned technical scheme, stop screw is used for restricting the position of sliding of kicking block, prevents that the kicking block range of sliding from dropping from the lower bolster too greatly to prevent that the shaping piece from the groove roll-off completely of stepping down, further promote the installation effectiveness of shaping piece, indirectly promote production efficiency.

The present invention may be further configured in a preferred embodiment as: the side wall of the upper template is provided with a positioning concave block, the side wall of the lower template is provided with a positioning convex block, and the positioning convex block is clamped in the positioning concave block.

Through adopting above-mentioned technical scheme, the locating convex block cooperatees with the concave piece in location, and the locating convex block is inserted and is established in the concave piece in location, promotes the cooperation precision of cope match-plate pattern and lower bolster, promotes the precision of product, reduces the rejection rate, indirectly promotes production efficiency.

The present invention may be further configured in a preferred embodiment as: a plurality of exhaust cavities are formed in the lower mold core and are evenly arranged along the length direction of the lower mold core, and the exhaust cavities are communicated with the mold cavity.

Through adopting above-mentioned technical scheme, the exhaust chamber is used for the discharge of the air of die cavity, and the complete discharge of air is guaranteed in a plurality of exhaust chambers, guarantees product quality, reduces the rejection rate, indirectly promotes production efficiency.

To sum up, the utility model discloses a following at least one useful technological effect:

1. before injection molding, the first bushing, the second bushing and the third bushing are preset in a cavity of the lower mold core, after injection molding, the upper mold plate and the lower mold plate are far away from each other, the molding block is drawn out of the lower mold core, and the ejector rod ejects the fixing frame, so that the time for installing the bushings on the frame body is saved, and the production efficiency is greatly improved;

2. the guide groove and the limiting screw guide and limit the jacking quickly, the product precision of the fixing frame is improved, and the yield is high.

Drawings

Fig. 1 is a schematic structural diagram of a fixing frame in the background art.

Fig. 2 is a schematic view of the overall structure of the present embodiment.

Fig. 3 is a schematic diagram showing a positional relationship of the top block.

Fig. 4 is a schematic view showing the connection relationship of the lower cores.

Fig. 5 is an enlarged view at a in fig. 4.

Fig. 6 is a schematic view showing a bush attachment relationship.

Fig. 7 is an enlarged view at B in fig. 4.

Fig. 8 is a schematic diagram showing the positional relationship of the tie bars.

In the figure, 1, an upper template; 2. a lower template; 3. an upper mold core; 4. a lower mold core; 5. a support pillar; 6. mounting a column; 7. forming a block; 8. a top block; 9. a pull rod; 10. a yielding groove; 11. an adjustment hole; 12. a guide groove; 13. a platen slot; 14. a top rod; 15. a jack rod hole; 16. positioning the concave block; 17. positioning the bump; 18. a limit screw; 19. pressing a plate; 20. an exhaust chamber; 21. a stopper; 22. a chute; 23. a slider; 24. a cavity; 25. a frame body; 26. a first bushing; 27. a second bushing; 28. a third bushing; 29. a through hole; 30. a clamping hole; 31. a clamping column; 32. a support plate; 33. a clamping plate; 34. and (6) a guide pillar.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2 and 3, for the utility model discloses a take injection mold of bush mount, including cope match-plate pattern 1, lower bolster 2, set up cope match-plate pattern 1 and lower bolster 2 hold the intracavity last mold core 3 and lower mold core 4, run through with the screw and fix cope match-plate pattern 3 on cope match-plate pattern 1 with last mold core 3, run through with the screw down mold core 4 and fix lower mold core 4 on lower bolster 2 with lower mold core 4. The discharging device of the injection molding machine comprises a supporting plate 32 arranged below the lower template 2, a clamping plate 33 and a guide post 34 penetrating through the supporting plate 32 and the clamping plate, wherein the clamping plate 33 is superposed on the supporting plate 32.

Referring to fig. 2 and 3, the upper mold plate 1 is provided with a positioning concave block 16, the positioning concave block 16 is fixed on the upper mold plate 1 by penetrating the positioning concave block 16 with a screw, the lower mold plate 2 is provided with a positioning convex block 17, and the positioning convex block 17 is fixed on the lower mold plate 2 by penetrating the positioning convex block 17 with a screw. And (3) closing the die up and down, inserting the positioning convex block 17 into the positioning concave block 16 to assist in positioning, and improving the matching precision of the die.

Referring to fig. 2 and 4, a plurality of pin holes 15 vertically penetrate through the lower mold core 4, and pins 14 are inserted into the pin holes 15. After plastics cool off, lower bolster 2 moves down, and layer board 32 and clamping plate 33 press from both sides ejector pin 14 tightly, and discharge apparatus butt layer board 32 below lower bolster 2, layer board 32 slide along guide pillar 34 is vertical upwards, and layer board 32 drives ejector pin 14 and upwards pushes up, and the completion of ejecting the mount finished product is unloaded, promotes production efficiency.

Referring to fig. 4 and 5, a cavity 24 is formed in the lower mold core 4, three exhaust cavities 20 are formed in the lower mold core 4 close to one surface of the upper mold core 3, and the three exhaust cavities 20 are communicated with the cavity 24. In the injection molding process, air exists in the cavity 24, the air is extruded by the plastic to enter the exhaust cavity 20, the cavity 24 is completely filled with the plastic, and the product quality is improved.

Referring to fig. 4 and 6, three support columns 5 are vertically arranged on the lower mold core 4, the three support columns 5 are coaxially arranged corresponding to the axes of the three first bushings 26 of the fixing frame, and the three support columns 5 penetrate through the lower mold core 4 and are in threaded connection with the lower mold core 4; two clamping columns 31 are vertically arranged on the lower mold core 4, the two clamping columns 31 are coaxially arranged corresponding to the axes of the two third bushings 28 of the fixing frame, the two clamping columns 31 are in threaded connection with the lower mold core 4, and one end of each clamping column 31 penetrates through the lower mold core 4 and extends upwards.

Referring to fig. 4 and 6, two parallel abdicating grooves 10 are formed in the side wall of the lower die core 4 corresponding to the fixing frame clamping hole 30 in the length direction, and the two abdicating grooves 10 extend along the width direction of the lower die core 4. All slide in two groove 10 of stepping down and be provided with shaping piece 7, shaping piece 7 one end is equipped with erection column 6, and the 6 axes of erection column are parallel with the length direction of shaping piece 7, and shaping piece 7 is kept away from 6 one end of erection column and is equipped with slider 23.

Referring to fig. 4 and 7, a top block 8 is arranged on the side wall of the lower mold core 4 provided with the abdicating groove 10, a sliding groove 22 is arranged on one surface of the top block 8 close to the lower mold core 4, and a sliding block 23 is arranged in the sliding groove 22 in a sliding manner.

Referring to fig. 8, a pull rod 9 penetrates through the top block 8, one end of the pull rod 9 in the length direction penetrates through the upper die plate 1, a stop block 21 is arranged at one end, close to the upper die plate 1, of the pull rod 9, the stop block 21 and the pull rod 9 are integrally formed, and one surface, close to the lower die core 4, of the stop block 21 abuts against one surface, far away from the lower die core 4, of the upper die plate 1. The lower template 2 is provided with a strip-shaped adjusting hole 11, and one end of the pull rod 9 far away from the stop block 21 is inserted in the adjusting hole 11.

Referring to fig. 4, the supporting column 5 extends out of one end of the lower mold core 4 to insert the first bushing 26, the clamping column 31 extends out of one end of the lower mold core 4 to insert the third bushing 28, the mounting column 6 is inserted with the second bushing 27, the bushing is coated by plastic in the injection molding process, and the cooled bushing is arranged in the frame body 25, so that the manual process of installing the bushing is omitted, and the production efficiency is improved. The support columns 5 are detachably connected, so that the support columns 5 are convenient to replace and repair, and the injection molding precision is improved; the pull rod 9 moves vertically upwards along with the upper template 1, and the pull rod 9 drives the ejector block 8 to slide on the lower template 2 in the direction away from the lower mold core 4; the pull rod 9 moves downwards along with the upper die plate 1, the pull rod 9 drives the ejector block 8 to slide towards the direction close to the lower die core 4 on the lower die plate 2, the ejector block 8 slides on the lower die plate 2 to control the inlet and outlet of the forming block 7 in the lower die core 4, the rapid demoulding is convenient, and the production efficiency is improved.

Referring to fig. 3 and 4, a guide groove 12 is formed in the lower template 2, the length direction of the guide groove 12 is parallel to the length direction of the abdicating groove 10, and the top block 8 is slidably arranged in the guide groove 12. The guide groove 12 is provided with a pressing plate groove 13 along the inner side wall symmetrical with the central line of the length direction of the guide groove 12, the pressing plate groove 13 is arranged along the length direction of the guide groove 12, the two side walls symmetrical with the central line of the length direction of the guide groove 12 of the top block 8 are provided with pressing plates 19, the pressing plates 19 and the top block 8 are integrally formed, and the pressing plates 19 are arranged in the pressing plate groove 13 in a sliding mode. And the bottom surface of the guide groove 12 is in threaded connection with a limit screw 18, and the limit screw 18 limits the top block 8 when the top block 8 slides in the guide groove 12, so that the top block 8 is prevented from sliding out of the guide groove 12. Guide way 12 and clamp plate groove 13 guarantee that kicking block 8 direction of sliding can not squint, and kicking block 8 can not incline, guarantee the positioning accuracy of shaping piece 7, avoid repeated manual work to fix a position, promote production efficiency.

The working process of the embodiment is as follows: and inserting the ejector rod 14 at a position on the injection molding machine corresponding to the hole of the ejector rod 14 on the lower mold core 4, and operating the injection molding machine to lower the ejector rod 14. Install support column 5 on lower mold core 4, install lower mold core 4 on lower bolster 2, in the slider 23 that will become piece 7 slides in spout 22, in kicking block 8 slides and inserts guide way 12, kicking block 8 butt lower mold core 4, and mold core 4 under the shaping piece 7 inserts twists stop screw 18 on guide way 12, inserts the bush on support column 5, joint post 31 and erection column 6. And (3) vertically closing the mold, inserting the pull rod 9 into the upper template 1, inserting the pull rod 9 into the adjusting hole 11 through the rolling jacking block 8, abutting the stop block 21 against the upper template 1 to prevent the pull rod 9 from falling down, and fixing the lower template 2 and the upper template 1 on the injection molding machine. The injection molding machine performs injection molding to the inside of the mold, after the plastic is cooled, the upper mold plate 1 and the lower mold plate 2 are far away from each other for mold separation, the pull rod 9 drives the ejector block 8 to slide towards the direction far away from the lower mold core 4, the limit screw 18 is abutted against the ejector block 8, the forming block 7 is drawn out from the lower mold core 4, and the ejector rod 14 rises to eject the finished product of the fixing frame; the upper template 1 and the lower template 2 are close to each other, the pull rod 9 drives the ejector block 8 to be close to the lower mold core 4, and the forming block 7 is inserted into the lower mold core 4 to complete mold assembly.

The embodiments of the present invention are the preferred embodiments of the present invention, and the protection scope of the present invention is not limited by this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. An injection mold with a bushing fixing frame comprises an upper template (1), a lower template (2), an upper mold core (3) and a lower mold core (4) which are arranged in accommodating cavities of the upper template (1) and the lower template (2), wherein the upper mold core (3) is fixedly connected to the upper template (1), the lower mold core (4) is fixedly connected to the lower template (2), and a cavity (24) is formed in one surface, close to the upper mold core (3), of the lower mold core (4); the method is characterized in that: three support columns (5) are vertically arranged on the lower mold core (4), the three support columns (5) penetrate through the lower mold core (4) and are in threaded connection with the lower mold core (4), and first bushings (26) are inserted into the support columns (5);

two clamping columns (31) are vertically arranged in the cavity (24), the two clamping columns (31) penetrate through the lower mold core (4) and are in threaded connection with the lower mold core (4), and third bushings (28) are inserted into the clamping columns (31);

seted up two groove of stepping down (10) on lower mold core (4), two it is equipped with into shape piece (7), two all to insert in groove of stepping down (10) all be equipped with erection column (6) on shaping piece (7), there is the contained angle between the axis of erection column (6) and joint post (31), insert on erection column (6) and be equipped with second bush (27).

2. The injection mold with the bushing fixing frame as claimed in claim 1, wherein: a top block (8) is arranged at one end of the lower mold core (4) in the width direction, a sliding groove (22) is formed in one surface, close to the lower mold core (4), of the top block (8), a sliding block (23) is arranged at one end, far away from the mounting column (6), of the forming block (7), and the sliding block (23) is arranged in the sliding groove (22) in a sliding mode; run through on kicking block (8) and have pull rod (9), pull rod (9) length direction one end runs through cope match-plate pattern (1), last mold core (3) one end is kept away from to keeping away from down mold core (4) direction slope in pull rod (9), pull rod (9) are close to cope match-plate pattern (1) one end and are equipped with dog (21), dog (21) are close to down mold core (4) one side butt joint cope match-plate pattern (1) and keep away from down mold core (4) one side, run through on lower bolster (2) and have rectangular shape adjustment hole (11), dog (21) one end is kept away from in dog (9) is inserted and is established in adjustment hole (11).

3. The injection mold with the bushing fixing frame as claimed in claim 2, wherein: a plurality of ejector rod holes (15) vertically penetrate through the lower mold core (4), ejector rods (14) are arranged in the ejector rod holes (15), and the ejector rods (14) penetrate through the lower mold plate (2) and are connected with a discharging device of the injection molding machine.

4. The injection mold with the bushing fixing frame as claimed in claim 2, wherein: a guide groove (12) is formed in one surface, close to the upper template (1), of the lower template (2), and the ejector block (8) is arranged in the guide groove (12) in a sliding mode.

5. The injection mold with the bushing fixing frame as claimed in claim 4, wherein: the guide groove (12) is provided with pressing plate grooves (13) along the inner side walls of the length direction central line symmetry, the top block (8) is provided with pressing plates (19) along the two side walls of the length direction of the guide groove (12), and the pressing plates (19) are arranged in the pressing plate grooves (13) in a sliding mode.

6. The injection mold with the bushing fixing frame as claimed in claim 5, wherein: and one surface of the guide groove (12) far away from the upper template (1) is provided with a limit screw (18), and the limit screw (18) is arranged at one end of the guide groove (12) far away from the lower mold core (4).

7. The injection mold with the bushing fixing frame as claimed in claim 1, wherein: the side wall of the upper template (1) is provided with a positioning concave block (16), the side wall of the lower template (2) is provided with a positioning convex block (17), and the positioning convex block (17) is clamped in the positioning concave block (16).

8. The injection mold with the bushing fixing frame as claimed in claim 1, wherein: the lower mold core (4) is provided with a plurality of exhaust cavities (20), the exhaust cavities (20) are uniformly arranged along the length direction of the lower mold core (4), and the exhaust cavities (20) are communicated with the cavity (24).