CN216068472U

CN216068472U - Injection mold for heat-resistant plastic

Info

Publication number: CN216068472U
Application number: CN202122674749.2U
Authority: CN
Inventors: 沈艳
Original assignee: Zhejiang Teng Feng Hardware Plastic Co ltd
Current assignee: Zhejiang Teng Feng Hardware Plastic Co ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-03-18
Anticipated expiration: 2031-11-03

Abstract

The utility model discloses an injection mold for heat-resistant plastic, which comprises a supporting seat, a lower mold seat and a filling port, wherein the lower mold seat is fixed at the top end of the supporting seat, an upper mold seat is arranged above the lower mold seat, a guide structure is arranged at the corner position between the lower mold seat and the upper mold seat, a top mold disc is arranged inside the lower mold seat, and the top end of the upper mold seat is communicated with the filling port. According to the anti-leakage die, the clamping block, the stop block and the clamping groove are arranged, the clamping block is fixed at the bottom end of the upper die base, the clamping groove is embedded in the top end of the lower die base, and the size of the clamping groove is matched with that of the clamping block, so that when the upper die base and the lower die base are combined, the clamping block is inserted into the clamping groove, the sealing performance between the lower die base and the upper die base is improved, and after the lower die base and the upper die base are connected, the stop block seals the joint of the lower die base and the upper die base, so that the anti-leakage effect can be achieved.

Description

Injection mold for heat-resistant plastic

Technical Field

The utility model relates to the technical field of injection molds, in particular to an injection mold for heat-resistant plastic.

Background

With the continuous development of society, antibacterial-heat-resistant plastic products are widely used, and during manufacturing, an injection mold is needed, wherein the injection mold is used for putting raw antibacterial-heat-resistant plastic material slurry into the injection mold through a feed inlet and then shaping the antibacterial-heat-resistant plastic products through the mold.

This type of injection mold on the market is various today, can satisfy people's user demand basically, but still has certain problem, wherein because the anti-overflow leaks the effect not good when using, when irritating the feed liquid of moulding plastics, liquid easily spills over from die holder and upper die base junction, causes the shaping object deckle edge problem to appear.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an injection mold for heat-resistant plastic, which aims to solve the problem of poor anti-overflow effect of the injection mold in the background technology.

The utility model provides an injection mold for heat-resistant plastic, which adopts the following technical scheme;

the utility model provides an injection mold for heat-resisting type plastics, includes supporting seat, die holder and sprue, the top of supporting seat is fixed with the die holder, the top of die holder is provided with the upper die base, turning position department between die holder and the upper die base is provided with guide structure, the outside on die holder top is provided with anti-overflow structure, anti-overflow structure includes joint piece, dog and joint groove, the dog is fixed in the outside top of die holder, the joint groove inlays the inside of locating the die holder top, the joint piece sets up in the bottom of upper die base, the inside of supporting seat is provided with demoulding mechanism, the internally mounted of die holder has the cope match-plate pattern dish, the top intercommunication of upper die base has the sprue.

Optionally, the guide structure includes a spring, a guide pillar, a movable cavity and a guide pillar, the guide pillar is fixed at a corner position of the top end of the lower die holder, the movable cavity is arranged inside the guide pillar, the guide pillar penetrates through the top end of the movable cavity, the top end of the guide pillar is connected with the bottom end of the upper die holder, and the spring is wound on the outer portion of the guide pillar above the guide pillar.

Optionally, the guide pillar is the type of falling T setting, the guide pillar passes through the spring and constitutes reset structure, makes the guide pillar automatic re-setting, and plays the cushioning effect through the spring when using, reduces the impact between die holder and the upper die base.

Optionally, the size in joint groove and the size looks adaptation of joint piece, joint piece and joint groove constitute the joint structure, improve the leakproofness of die holder and upper die base junction, reduce the deckle edge effect of appearing.

Optionally, demoulding mechanism includes guiding hole, guide bar, cavity, screw rod, gear and servo motor, the cavity sets up in the inside top of supporting seat, the guiding hole sets up in the both sides of the inside cavity of supporting seat, the inside of guiding hole is run through there is the guide bar, and the guide bar top is connected with top mould dish bottom, the screw rod runs through in the inside of supporting seat, servo motor installs on the surface of supporting seat, one side of the inside screw rod of cavity is provided with the gear.

Optionally, the output of the servo motor is connected with the gear through a coupler, the gear and the cavity are meshed with each other, the gear is driven by the servo motor to enable the screw to move up and down, and therefore the top die plate can move up and down.

Optionally, the cooling tube is installed in the lower die holder and the upper die holder, the cooling tube is distributed in an S shape in the lower die holder and the upper die holder, the top die disc and the lower die holder are tightly attached to each other, the lower die holder and the upper die holder can be cooled rapidly through winding, and the cooling effect on the lower die holder and the upper die holder is accelerated.

In summary, the present invention includes at least one of the following advantages;

the clamping block is fixed at the bottom end of the upper die base, the clamping groove is embedded in the top end of the lower die base, and the size of the clamping groove is matched with that of the clamping block, so that when the upper die base and the lower die base are combined, the clamping block is inserted into the clamping groove, the sealing property between the lower die base and the upper die base is improved, and after the lower die base and the upper die base are connected, the joint of the lower die base and the upper die base is sealed by the clamping block, so that an anti-overflow effect can be achieved;

through being provided with guide bar, screw rod, gear and servo motor, servo motor and gear connection, the gear and the meshing of servo motor, it reciprocates to drive the guiding hole at servo motor rotation, can be ejecting with the shaping object through the guiding hole jack-up to the top die dish, and the object drawing of patterns of being convenient for, when the top die dish reciprocates simultaneously, the guide bar can play the guide effect to the top die dish, makes the steady movement of top die dish.

Through being provided with spring, guide pillar, activity chamber and guide post, because be connected through corresponding technique between guide pillar top and the upper die base, the spring is in between guide post and the upper die base to can carry on spacingly to the spring, the later stage when using, can play the effect of buffering under the effect through the spring when upper die base and die holder merge, avoids direct striking to cause the damage to the contact surface as far as possible.

Drawings

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

FIG. 2 is a schematic view of a partial cross-sectional structure of the present invention;

FIG. 3 is a schematic front sectional view of a guide post according to the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 5 is a schematic view of a connection structure of a servo motor and a gear according to the present invention.

In the figure: 1. a supporting seat; 2. a lower die holder; 3. a guide structure; 301. a spring; 302. a guide post; 303. a movable cavity; 304. a guide post; 4. an upper die holder; 5. a material injection port; 6. an anti-overflow structure; 601. a clamping block; 602. a stopper; 603. a clamping groove; 7. a demolding mechanism; 701. a guide hole; 702. a guide bar; 703. a cavity; 704. a screw; 705. a gear; 706. a servo motor; 8. a top mold plate; 9. and (7) cooling the tube.

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 present invention is described in further detail below with reference to figures 1-5.

The utility model discloses an injection mold for heat-resistant plastics, and referring to fig. 1-5, the injection mold comprises a supporting seat 1, a lower die holder 2 and a sprue 5, the top end of the supporting seat 1 is fixed with the lower die holder 2, an upper die holder 4 is arranged above the lower die holder 2, a guide structure 3 is arranged at the corner position between the lower die holder 2 and the upper die holder 4, the guide structure 3 comprises a spring 301, a guide pillar 302, a movable cavity 303 and a guide pillar 304, the guide pillar 304 is fixed at the corner position of the top end of the lower die holder 2, the movable cavity 303 is arranged inside the guide pillar 304, the top end of the movable cavity 303 penetrates through the guide pillar 302, the top end of the guide pillar 302 is connected with the bottom end of the upper die holder 4, the spring 301 is wound outside the guide pillar 302 above the guide pillar 304, in the embodiment, the spring 301 is connected with the upper die holder 4 through the guide pillar 302, the spring 301 can be prevented from being separated from the guide pillar 304, and the stability of the spring 301 is improved, avoid spring 301 to break away from guide pillar 302 top as far as possible, guide pillar 302 is the type of falling T setting, and guide pillar 302 constitutes reset structure through spring 301, in this embodiment, through spring 301's effect when using, can reduce the impact that produces when die holder 2 and upper die base 4 merge, if die holder 2 and upper die base 4 strike under the effect of no buffering for a long time, easily make the contact surface between die holder 2 and the upper die base 4 the deformation problem appear.

Referring to fig. 3, when the structure is used, firstly, in the process that the upper die holder 4 moves downwards, the guide pillar 302 is extruded to slide in the movable cavity 303, the spring 301 is extruded to shrink, and meanwhile, the effect of the spring 301 can play a role of buffering when the lower die holder 2 and the upper die holder 4 are combined, so that large impact force is generated when the upper die holder 4 and the lower die holder 2 are contacted.

The outside on 2 tops of die holder is provided with anti-overflow structure 6, anti-overflow structure 6 includes joint piece 601, dog 602 and joint groove 603, dog 602 is fixed in the outside top of die holder 2, joint groove 603 inlays the inside of locating 2 tops of die holder, joint piece 601 sets up in the bottom of upper die base 4, the size of joint groove 603 and the size looks adaptation of joint piece 601, joint piece 601 suction is to in joint groove 603, through joint piece 601 and the common effect of joint groove 603, can make 2 and the inseparable laminating of last mould 4 of bed die, joint piece 601 and joint groove 603 constitute the joint structure, in this embodiment, when 2 and 4 mergers of upper die base of die base, joint piece 601 inserts inside joint groove 603, under the effect of joint piece 601 and joint groove 603, can improve the leakproofness that 2 and upper die base 4 are connected of die holder, thereby reduce the deckle edge problem appearing after the object shaping.

Referring to fig. 4, when the structure is used, firstly, when the upper die base 4 and the lower die base 2 are combined, the clamping block 601 is inserted into the clamping groove 603, the sealing performance between the upper die base 4 and the lower die base 2 is improved through the action of the clamping block 601 and the clamping groove 603, and after the lower die base 2 and the upper die base 4 are combined, the stop block 602 wraps the joint of the lower die base 2 and the upper die base 4, so that the anti-overflow problem is further solved.

The inside of the supporting seat 1 is provided with the demoulding mechanism 7, the demoulding mechanism 7 comprises a guide hole 701, a guide rod 702, a cavity 703, a screw 704, a gear 705 and a servo motor 706, the cavity 703 is arranged at the top end inside the supporting seat 1, the guide hole 701 is arranged at two sides of the cavity 703 inside the supporting seat 1, the guide rod 702 penetrates through the inside of the guide hole 701, in the embodiment, the top mold plate 8 moves up and moves smoothly under the action of the guide rod 702 and the guide hole 701, the offset problem of the top mold plate 8 can be prevented to a certain extent, the screw 704 penetrates through the inside of the supporting seat 1, the servo motor 706 is arranged on the surface of the supporting seat 1, the gear 705 is arranged at one side of the screw 704 inside the cavity 703, the output of the servo motor 706 is connected with the gear 705 through a coupler, the gear 705 and the cavity 703 are mutually meshed, in the embodiment, when the servo motor 706 operates, the output end of the gear 705 drives the gear 705 to rotate, the gear 705 drives the screw 704 to move up and down when rotating in the forward and reverse directions, the object is jacked up through the jacking mould disc 8, and demoulding of the object is facilitated in the later stage.

Referring to fig. 2 and 5, when the structure is used, firstly, the servo motor 706 is started, the servo motor 706 operates to drive the gear 705 to rotate, the screw 704 applies work in the process of rotating the gear 705, the screw 704 can rotate forward and backward to apply work to the top die plate 8 through the gear 705, so that the top die plate 8 can move up and down, however, when the screw 704 jacks up the top die plate 8, the object can be conveniently demoulded, the top die plate 8 drives the guide rod 702 to move up in the process of moving up and down, and the top die plate 8 can move up and down smoothly under the action of the guide rod 702.

The cooling tube 9 is all installed to the inside of die holder 2 and upper die base 4, the cooling tube 9 is the S type distribution in the inside of die holder 2 and upper die base 4, closely laminate between top mold disk 8 and the die holder 2, in this embodiment, effect through cooling tube 9, can cool down fast die holder 2 and upper die base 4, accelerate object shaping speed, closely laminate through top mold disk 8 and die holder 2, avoid as far as possible that liquid has the gap inflow between top mold disk 8 and the die holder 2, the internally mounted of die holder 2 has top mold disk 8, the top intercommunication that top mold disk 8 bottom and guide bar 702 top are connected upper die base 4 has sprue 5.

The implementation principle of the injection mold for the heat-resistant plastic is as follows:

firstly, a supporting seat 1 and an upper die seat 4 are arranged above a support, the upper die seat 4 is extruded, a guide pillar 302 is driven to shrink towards a movable cavity 303, the distance between the upper die seat 4 and a lower die seat 2 is reduced, a spring 301 deforms and shrinks when the distance between the upper die seat 4 and the lower die seat 2 is reduced, and a buffering effect can be achieved under the action of the spring 301;

secondly, combining the upper die holder 4 and the lower die holder 2, inserting the clamping block 601 into the clamping groove 603, positioning the stop block 602 outside the contact surface of the upper die holder 4 and the lower die holder 2, injecting heat-resistant plastic liquid through the injection port 5, molding a plastic object through the lower die holder 2 and the upper die holder 4, flowing cooling liquid along the cooling pipe 9 through an external pumping pump connected with the cooling pipe 9, cooling the lower die holder 2 and the upper die holder 4, and shaping the liquid inside;

and finally, when the material is taken, the extrusion force on the upper die base 4 is converted into a tensile force, the distance between the lower die base 2 and the upper die base 4 is enlarged, the servo motor 706 is started to drive the gear 705 to rotate, the screw 704 moves upwards when the gear 705 rotates to apply work to the top die disc 8, the top die disc 8 is pushed out by the jacking force, the material is convenient to take out in the later period, and the use work of the injection mold for the heat-resistant plastic is finally completed.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an injection mold for heat-resisting type plastics, includes supporting seat (1), die holder (2) and sprue (5), its characterized in that: a lower die holder (2) is fixed at the top end of the supporting seat (1), an upper die holder (4) is arranged above the lower die holder (2), a guide structure (3) is arranged at the corner position between the lower die holder (2) and the upper die holder (4), an anti-overflow structure (6) is arranged outside the top end of the lower die holder (2), the anti-overflow structure (6) comprises a clamping block (601), a stop block (602) and a clamping groove (603), the stop block (602) is fixed at the top end of the outer part of the lower die holder (2), the clamping groove (603) is embedded in the inner part of the top end of the lower die holder (2), the clamping block (601) is arranged at the bottom end of the upper die base (4), the inside of the supporting base (1) is provided with a demoulding mechanism (7), the die is characterized in that a top die disc (8) is installed inside the lower die base (2), and the top end of the upper die base (4) is communicated with a filling opening (5).

2. An injection mold for heat-resistant type plastic according to claim 1, characterized in that: the guide structure (3) comprises a spring (301), a guide post (302), a movable cavity (303) and a guide post (304), wherein the guide post (304) is fixed at the corner position of the top end of the lower die holder (2), the movable cavity (303) is arranged inside the guide post (304), the guide post (302) penetrates through the top end of the movable cavity (303), the top end of the guide post (302) is connected with the bottom end of the upper die holder (4), and the spring (301) is wound outside the guide post (302) above the guide post (304).

3. An injection mold for heat-resistant type plastic according to claim 2, characterized in that: the guide post (302) is arranged in an inverted T shape, and the guide post (302) forms a reset structure through a spring (301).

4. An injection mold for heat-resistant type plastic according to claim 1, characterized in that: the size of joint groove (603) and the size looks adaptation of joint piece (601), joint piece (601) and joint groove (603) constitute the joint structure.

5. An injection mold for heat-resistant type plastic according to claim 1, characterized in that: demoulding mechanism (7) includes guiding hole (701), guide bar (702), cavity (703), screw rod (704), gear (705) and servo motor (706), cavity (703) set up in the inside top of supporting seat (1), guiding hole (701) set up in the both sides of supporting seat (1) internal cavity (703), the inside of guiding hole (701) is run through has guide bar (702), and guide bar (702) top is connected with top mould dish (8) bottom, screw rod (704) run through in the inside of supporting seat (1), servo motor (706) are installed on the surface of supporting seat (1), one side of cavity (703) internal screw rod (704) is provided with gear (705).

6. An injection mold for heat-resistant type plastic according to claim 5, characterized in that: the output of the servo motor (706) is connected with a gear (705) through a coupler, and the gear (705) and the cavity (703) are meshed with each other.

7. An injection mold for heat-resistant type plastic according to claim 1, characterized in that: the cooling pipe (9) are installed in the lower die holder (2) and the upper die holder (4), the cooling pipe (9) is distributed in an S shape in the lower die holder (2) and the upper die holder (4), and the top die disc (8) is tightly attached to the lower die holder (2).