CN212860222U

CN212860222U - Plastic lunch box injection mold with exhaust passage

Info

Publication number: CN212860222U
Application number: CN202021005311.4U
Authority: CN
Inventors: 李宏伟
Original assignee: Guangdong Fuhe Packaging Technology Co ltd
Current assignee: Guangdong Fuhe Packaging Technology Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-04-02
Anticipated expiration: 2030-06-04

Abstract

The utility model discloses a plastics lunch-box injection mold with exhaust passage, lead to the groove including cover half, mold core, lower die cavity, movable mould and moulding plastics, the top of cover half is equipped with the movable mould, and the central point department of putting of movable mould bottom is equipped with the die cavity to the movable mould bottom of going up die cavity one side is equipped with the thread groove, the central point department of putting at cover half top is equipped with the lower die cavity, and the central point department of putting of lower die cavity bottom is fixed with the mold core, and the top of mold core extends to the outside of lower die cavity, and is equipped with on the inner wall of lower die cavity one side and moulds plastics logical groove, and the one end that leads to the groove of moulding plastics extends to the outside of cover half to the sealing ring is installed to the one end that leads to the die cavity. The utility model discloses not only ensured the effect of moulding plastics when injection mould uses, improved the convenience when injection mould uses, reduced the phenomenon that produces the leakage when injection mould uses moreover.

Description

Plastic lunch box injection mold with exhaust passage

Technical Field

The utility model relates to an injection moulding technical field specifically is a plastics lunch-box injection mold with exhaust passage.

Background

The plastic lunch box is one kind of plastic product, and during its processing, it needs to use the corresponding injection mold to carry out injection molding treatment.

The injection molds on the market are various and can basically meet the use requirements of people, but certain defects still exist, and the specific problems are as follows.

(1) The existing injection mold is inconvenient for exhaust treatment, so that a formed object is easy to generate a large amount of bubbles, and the injection effect is further influenced;

(2) the existing injection mold is inconvenient for adjusting the opening and closing size of the injection through groove, the injection rate of the injection mold is difficult to adjust according to specific requirements, and the injection mold is inconvenient to use;

(3) the movable mould part of the existing injection mould is difficult to be tightly attached to the fixed mould part, so that the leakage phenomenon is easy to generate, and people are often troubled.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plastics lunch-box injection mold with exhaust passage to it is difficult to closely laminate the problem in the cover half position to propose that injection mold is not convenient for carry out exhaust-gas treatment, be not convenient for adjust the size of opening and shutting and the movable mould position that lead to the groove of moulding plastics in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a plastic lunch box injection mold with an exhaust passage comprises a fixed mold, a mold core, a lower mold cavity, a movable mold and an injection through groove, wherein the movable mold is arranged above the fixed mold, an upper mold cavity is arranged at the central position of the bottom of the movable mold, a thread groove is arranged at the bottom of the movable mold at one side of the upper mold cavity, the lower mold cavity is arranged at the central position of the top of the fixed mold, the mold core is fixed at the central position of the bottom of the lower mold cavity, the top end of the mold core extends to the outside of the lower mold cavity, the injection through groove is arranged on the inner wall at one side of the lower mold cavity, one end of the injection through groove extends to the outside of the fixed mold, a sealing ring is arranged at one end, away from the lower mold cavity, of the injection through groove, a flow limiting mechanism is arranged inside the fixed mold below the injection through groove, the, and a lifting cavity is arranged at the top of the fixed die on one side of the lower die cavity, which is far away from the injection molding through groove.

Preferably, the central point department of going up and down the cavity bottom installs first motor, and the output of first motor installs first pivot through the shaft coupling to the lead screw is installed to the top of first pivot, and the top of lead screw extends to the outside of going up and down the cavity and with thread groove threaded connection, so that drive the lead screw and rotate.

Preferably, all be fixed with on two lateral walls at movable mould top and link the board, all be fixed with down on two lateral walls of cover half bottom and link the board, and link the both ends at board top down and all install the telescopic link, the top of telescopic link is connected with the bottom of last even board to carry out spacing lift processing to cover half and movable mould.

Preferably, the inside of current-limiting mechanism is equipped with fluted disc, guide shaft, toper current-limiting block, connecting axle, disc, second pivot, second motor, power cavity and projection in proper order, mould plastics and to lead to the inside power cavity that is equipped with of cover half below, and the central point of power cavity bottom puts the department and installs the second motor to the output of second motor passes through the shaft coupling and installs the second pivot, so that drive the disc and rotate.

Preferably, a disc is fixed at the top end of the second rotating shaft, a fluted disc is arranged in the power cavity on one side of the disc, and a convex column is fixed on one side of the top end of the disc so as to drive the fluted disc to rotate slowly.

Preferably, the logical inslot portion of moulding plastics of power cavity top is equipped with the guide shaft, and the top of guide shaft is articulated mutually with the inner wall that leads the groove of moulding plastics, and all installs toper current-limiting block on two lateral walls of guide shaft to the central point department of putting of guide shaft bottom is fixed with the connecting axle, and the bottom of connecting axle extends to the inside of power cavity and with the top fixed connection of fluted disc, so that the regulation is moulded plastics and is led to the size that opens and shuts of groove.

Compared with the prior art, the beneficial effects of the utility model are that: the plastic lunch box injection mold with the exhaust channel not only ensures the injection molding effect of the injection mold during use, improves the convenience of the injection mold during use, but also reduces the leakage phenomenon of the injection mold during use;

(1) the injection molding connector connected with the injection molding through groove is sealed through the sealing ring by the aid of the exhaust through groove, the second plug head and the sealing ring, leakage of the injection molding connector is reduced, the exhaust through groove is opened by opening the second plug head, gas in the lower mold cavity is exhausted to the outside of the lower mold cavity through the exhaust through groove, the exhaust function of the injection mold is achieved, the phenomenon that an injection molding object generates bubbles is avoided, and the injection molding effect of the injection mold is guaranteed when the injection mold is used;

(2) by arranging the fluted disc, the guide shaft, the conical flow limiting block, the connecting shaft, the disc, the second rotating shaft, the second motor, the power cavity and the convex column, the second motor arranged in the power cavity is controlled by operating the external switch, so that the disc is driven by the second rotating shaft to rotate, the fluted disc is driven by the convex column to slowly rotate, the fluted disc drives the guide shaft to synchronously rotate in the injection through groove through the connecting shaft, the conical flow limiting block rotates, the gap between the conical flow limiting block and the injection through groove changes at the moment, the opening and closing size of the injection through groove changes, the injection speed of the injection through groove is adjusted according to the injection requirement, and the convenience of the injection mold in use is improved;

(3) through being provided with down even board, the telescopic link, go up even board, first motor, first pivot, lift cavity and thread groove, through operation external switch control first motor, make it rotatory by first pivot drive lead screw, and make the lead screw rotate in the inside of thread groove, the telescopic link then can contract this moment, both ends because of the telescopic link are connected with cover half and movable mould through last even board and lower even board respectively, make the movable mould move down and closely laminate in the top of cover half, in order to avoid producing the clearance between movable mould and the cover half, thereby the phenomenon of producing the leakage when having reduced injection mold and using.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

FIG. 2 is a schematic view of a cross-sectional enlarged structure of the current limiting mechanism of the present invention;

FIG. 3 is a schematic view of the enlarged structure of the fluted disc in plan view;

fig. 4 is a schematic side view of the present invention.

In the figure: 1. fixing a mold; 2. a first rotating shaft; 3. a lifting cavity; 4. a screw rod; 5. a thread groove; 6. an upper connecting plate; 7. an upper mold cavity; 8. a mold core; 9. a lower die cavity; 10. a telescopic rod; 11. moving the mold; 12. a seal ring; 13. a flow limiting mechanism; 1301. a fluted disc; 1302. a guide shaft; 1303. a conical flow limiting block; 1304. a connecting shaft; 1305. a disc; 1306. a second rotating shaft; 1307. a second motor; 1308. a power cavity; 1309. a convex column; 14. a second plug head; 15. a lower connecting plate; 16. an exhaust through groove; 17. injection molding a through groove; 18. a first motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: a plastic lunch box injection mold with an exhaust passage comprises a fixed mold 1, a mold core 8, a lower mold cavity 9, a movable mold 11 and an injection through groove 17, wherein the movable mold 11 is arranged above the fixed mold 1, upper connecting plates 6 are fixed on two outer side walls at the top of the movable mold 11, lower connecting plates 15 are fixed on two outer side walls at the bottom of the fixed mold 1, telescopic rods 10 are installed at two ends of the top of each lower connecting plate 15, and the top ends of the telescopic rods 10 are connected with the bottom ends of the upper connecting plates 6 so as to perform limiting lifting treatment on the fixed mold 1 and the movable mold 11;

an upper die cavity 7 is arranged at the center of the bottom of the movable die 11, a thread groove 5 is arranged at the bottom of the movable die 11 at one side of the upper die cavity 7, a lower die cavity 9 is arranged at the center of the top of the fixed die 1, a die core 8 is fixed at the center of the bottom of the lower die cavity 9, the top end of the die core 8 extends to the outside of the lower die cavity 9, an injection through groove 17 is arranged on the inner wall at one side of the lower die cavity 9, one end of the injection through groove 17 extends to the outside of the fixed die 1, a sealing ring 12 is arranged at one end of the injection through groove 17 away from the lower die cavity 9, a flow limiting mechanism 13 is arranged inside the fixed die 1 below the injection through groove 17, a fluted disc 1301, a guide shaft 1302, a conical flow limiting block 1303, a connecting shaft 1304, a disc 1305, a second rotating shaft 1306, a second motor 1307, a power cavity 1308 and a convex column 1309 are sequentially arranged inside the fixed die 1 below the, the type of the second motor 1307 can be Y90S-2, the output end of the second motor 1307 is provided with a second rotating shaft 1306 through a coupling, a disk 1305 is fixed at the top end of the second rotating shaft 1306, a fluted disc 1301 is arranged inside a power cavity 1308 on one side of the disk 1305, a convex column 1309 is fixed at one side of the top end of the disk 1305, a guide shaft 1302 is arranged inside an injection molding through groove 17 above the power cavity 1308, the top end of the guide shaft 1302 is hinged to the inner wall of the injection molding through groove 17, conical current limiting blocks 1303 are arranged on two outer side walls of the guide shaft 1302, a connecting shaft 1304 is fixed at the central position of the bottom end of the guide shaft 1302, and the bottom end of the connecting shaft 1304 extends into the power cavity 1308 and is fixedly connected with the top end of the fluted disc;

the second motor 1307 arranged in the power cavity 1308 is controlled by operating an external switch, so that the second motor is driven by the second rotating shaft 1306 to rotate the disc 1305, the convex pillar 1309 drives the fluted disc 1301 to slowly rotate, at the moment, the fluted disc 1301 drives the guide shaft 1302 to synchronously rotate in the injection molding through groove 17 through the connecting shaft 1304, the conical flow limiting block 1303 is driven to rotate, at the moment, a gap between the conical flow limiting block 1303 and the injection molding through groove 17 is changed, the opening and closing size of the injection molding through groove 17 is further changed, the injection molding speed of the injection molding through groove 17 is adjusted according to the injection molding requirement, and the convenience of the injection molding mold in use is improved;

one side of lower die cavity 9 bottom is equipped with exhaust logical groove 16, the one end that the logical groove 16 of exhaust extends to the outside of cover half 1, and exhaust logical groove 16 keeps away from the one end of lower die cavity 9 and installs second chock plug 14, and lower die cavity 9 keeps away from 1 top of cover half of the logical groove 17 one side of moulding plastics and is equipped with lift cavity 3, the central point department of the bottom of lift cavity 3 installs first motor 18, this first motor 18's model can be Y90S-2, and first pivot 2 is installed through the shaft coupling to first motor 18's output, and lead screw 4 is installed on the top of first pivot 2, the top of lead screw 4 extends to the outside of lift cavity 3 and with thread groove 5 threaded connection, so that drive lead screw 4 rotates.

The working principle is as follows: when the injection mold is used, firstly, the first motor 18 is controlled by operating the external switch to enable the first motor to drive the screw rod 4 to rotate by the first rotating shaft 2, and the screw rod 4 is enabled to rotate in the thread groove 5, at the moment, the telescopic rod 10 can contract, because two ends of the telescopic rod 10 are respectively connected with the fixed mold 1 and the movable mold 11 through the upper connecting plate 6 and the lower connecting plate 15, the movable mold 11 moves downwards and is tightly attached to the top end of the fixed mold 1, so that a gap is prevented from being generated between the movable mold 11 and the fixed mold 1, the leakage phenomenon generated when the injection mold is used is reduced, then the bottom end of the movable mold 11 after moving downwards is tightly attached to the top end of the fixed mold 1, the top of the mold core 8 is positioned in the upper mold cavity 7, a cavity is further formed in the upper mold cavity 7 on the outer side of the mold core 8, the required shape of a product is formed by matching the cavity and the lower mold, the phenomenon of leakage is reduced, the second plug 14 is opened to enable the exhaust through groove 16 to be in an open state, at the moment, the gas in the lower mold cavity 9 is exhausted to the outside of the lower mold cavity 9 through the exhaust through groove 16, the exhaust function of the injection mold is realized, the phenomenon of bubbles generated by injection molding objects is avoided, the injection molding effect of the injection mold during use is ensured, the fused plastic is injected into the lower mold cavity 9 through the circulation function of the injection through groove 17 by means of an external instrument so as to be subjected to injection molding treatment, finally, the second motor 1307 arranged in the power cavity 1308 is controlled through operating an external switch, the second rotating shaft 1306 drives the disc 1305 to rotate, the convex column 1309 drives the fluted disc 1301 to slowly rotate, at the moment, the fluted disc 1301 drives the guide shaft 1302 to synchronously rotate in the injection through groove 17 through the connecting shaft 1304, and the conical flow limiting block 1303 rotates, at this moment, the gap between the conical flow limiting block 1303 and the injection molding through groove 17 can be changed, so that the opening and closing size of the injection molding through groove 17 is changed, the injection molding speed of the injection molding through groove is adjusted according to the injection molding requirement, the convenience of the injection mold in use is improved, and the use of the injection mold is completed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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 a plastics lunch-box injection mold with exhaust passage, includes cover half (1), mold core (8), lower die cavity (9), movable mould (11) and moulds plastics and lead to groove (17), its characterized in that: a movable mold (11) is arranged above the fixed mold (1), an upper mold cavity (7) is arranged at the central position of the bottom of the movable mold (11), a thread groove (5) is arranged at the bottom of the movable mold (11) on one side of the upper mold cavity (7), a lower mold cavity (9) is arranged at the central position of the top of the fixed mold (1), a mold core (8) is fixed at the central position of the bottom of the lower mold cavity (9), the top end of the mold core (8) extends to the outside of the lower mold cavity (9), an injection through groove (17) is arranged on the inner wall on one side of the lower mold cavity (9), one end of the injection through groove (17) extends to the outside of the fixed mold (1), a sealing ring (12) is installed at one end, far away from the lower mold cavity (9), of the injection through groove (17), a flow limiting mechanism (13) is arranged inside the fixed mold (1) below the, one end of the exhaust through groove (16) extends to the outside of the fixed mold (1), one end of the exhaust through groove (16) far away from the lower mold cavity (9) is provided with a second plug head (14), and the top of the fixed mold (1) far away from one side of the injection through groove (17) of the lower mold cavity (9) is provided with a lifting cavity (3).

2. The injection mold for plastic lunch box with an exhaust passage as claimed in claim 1, wherein: the center position department of lift cavity (3) bottom installs first motor (18), and the output of first motor (18) installs first pivot (2) through the shaft coupling to lead screw (4) are installed on the top of first pivot (2), and the top of lead screw (4) extend to the outside of lift cavity (3) and with thread groove (5) threaded connection.

3. The injection mold for plastic lunch box with an exhaust passage as claimed in claim 1, wherein: all be fixed with on two lateral walls at movable mould (11) top and link board (6), all be fixed with down link board (15) on two lateral walls of cover half (1) bottom, and link both ends at board (15) top down and all install telescopic link (10), the top of telescopic link (10) is connected with the bottom of last link board (6).

4. The injection mold for plastic lunch box with an exhaust passage as claimed in claim 1, wherein: the inside of current-limiting mechanism (13) is equipped with fluted disc (1301), guide shaft (1302), toper restriction piece (1303), connecting axle (1304), disc (1305), second pivot (1306), second motor (1307), power cavity (1308) and projection (1309) in proper order, the cover half (1) inside of leading to groove (17) below of moulding plastics is equipped with power cavity (1308), and the central point department of power cavity (1308) bottom installs second motor (1307) to second pivot (1306) are installed through the shaft coupling to the output of second motor (1307).

5. The injection mold for plastic lunch box with an exhaust passage as claimed in claim 4, wherein: a disc (1305) is fixed to the top end of the second rotating shaft (1306), a fluted disc (1301) is arranged inside the power cavity (1308) on one side of the disc (1305), and a convex column (1309) is fixed to one side of the top end of the disc (1305).

6. The injection mold for plastic lunch box with an exhaust passage as claimed in claim 5, wherein: the inside guide shaft (1302) that is equipped with of logical groove (17) of moulding plastics of power cavity (1308) top, the top of guide shaft (1302) is articulated mutually with the inner wall of the logical groove (17) of moulding plastics, and all installs toper current-limiting block (1303) on two lateral walls of guide shaft (1302), and the central point department of putting of guide shaft (1302) bottom is fixed with connecting axle (1304), the bottom of connecting axle (1304) extend to the inside of power cavity (1308) and with the top fixed connection of fluted disc (1301).