CN214056279U

CN214056279U - Hot runner mold structure

Info

Publication number: CN214056279U
Application number: CN202023011409.3U
Authority: CN
Inventors: 熊延开
Original assignee: Kunshan Yichangkai Precision Mould Co ltd
Current assignee: Kunshan Yichangkai Precision Mould Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-08-27
Anticipated expiration: 2030-12-15

Abstract

The utility model relates to the technical field of mold, in particular to a hot runner mold structure, which solves the defects in the prior art, comprises mold feet which are oppositely arranged, wherein the tops of the two mold feet are fixed on a lower mold through countersunk screws, the top of the lower mold is fixed with a guide pillar through screws, the outer part of the guide pillar is slidably assembled with an upper mold, a male mold core and a female mold core are respectively arranged on the lower mold and the upper mold, the inner part of the upper mold is respectively provided with a flow channel, a mounting groove and a sliding groove which are communicated with each other, the inner part of the sliding groove is slidably connected with a piston, the end part of the piston is fixed with an adjusting ball through screws, through the arrangement of the structures such as the piston, the adjusting ball, the worm wheel, the worm and the screw rod, after the worm is rotated, the slide rod drives the piston to slide back and forth, the adjusting ball can adjust the size of the flow channel after moving, when different products are injected, the situation that the part is broken due to the overlarge pressure can be avoided.

Description

Hot runner mold structure

Technical Field

The utility model relates to the technical field of mold, especially, relate to a hot runner mold structure.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material.

The size of a runner of an injection mold in the prior art cannot be adjusted, the flow cannot be adjusted according to an injection molded product, the pressure inside a cavity is too high when the flow is too high, and a mold core in the cavity is easy to break.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a hot runner mold structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a hot runner mold structure comprises mold legs which are oppositely arranged, the tops of the two mold legs are fixed to a lower mold through countersunk screws, guide pillars are fixed to the tops of the lower mold through screws, an upper mold is assembled outside the guide pillars in a sliding mode, a male mold core and a female mold core are arranged on the lower mold and the upper mold respectively, a flow channel, a mounting groove and a sliding groove which are communicated with each other are formed in the upper mold respectively, a piston is connected inside the sliding groove in a sliding mode, an adjusting ball is fixed to the end portion of the piston through screws, and the adjusting ball can move back and forth to adjust the flow in the flow channel;

a disassembly block is fixed inside the installation groove through a countersunk head screw, and one side of the disassembly block is provided with a profiling groove matched with the adjusting ball;

and an adjusting component is arranged in the upper die.

Preferably, the adjusting component comprises a worm and a screw rod, the worm is connected with a worm wheel in a meshed mode, the worm wheel is sleeved outside the screw rod, a through hole, a rectangular groove and a sliding hole which are communicated with each other are sequentially formed in the upper die, the worm is embedded in the through hole, a sliding rod is slidably connected inside the sliding hole, one end of the sliding rod is fixedly connected with the piston through a screw, a groove is formed in the other end of the sliding rod, a sliding block is slidably connected inside the groove, an adjusting nut is sleeved outside the screw rod, and the adjusting nut is fixed inside the groove through a screw.

Preferably, the top of the upper die is provided with symmetrically arranged circular grooves, the end of the worm is welded with a rotating disc, and the rotating disc is located inside the circular grooves.

Preferably, the screw is rotatably mounted between the rectangular groove and the sliding block through a bearing.

Preferably, the number of the disassembly blocks is four, and the four disassembly blocks are symmetrically arranged on two sides of the two adjusting balls.

The utility model has the advantages that:

1. the utility model discloses in through the setting of piston, adjusting ball, worm wheel, worm and screw rod isotructure, after rotating the worm, worm drive worm wheel and screw rod rotate to make the slide bar drive the piston and make a round trip to slide, can adjust the size of runner after the adjusting ball removes, when moulding plastics to the product of difference, can avoid the too big cracked condition of part that leads to of pressure to take place.

2. The utility model discloses in through the setting of dismantling the piece, set up dismantled and assembled dismantlement piece at the regulation part of runner, can clear up long service life to the sizing material of regulation department.

Drawings

Fig. 1 is a front view of a hot runner mold structure according to the present invention;

fig. 2 is a front sectional view of the upper mold according to the present invention;

fig. 3 is an enlarged view of the position of a reference mark a of the hot runner mold structure provided by the utility model.

In the figure: the device comprises a die foot 1, a lower die 2, a male die core 21, a guide pillar 3, an upper die 4, a female die core 41, a runner 5, a through hole 6, a worm 7, a piston 8, a disassembly block 9, a mounting groove 10, a sliding groove 11, an adjusting ball 12, a rotating disc 13, a rectangular groove 14, a worm wheel 15, a screw 16, a groove 17, a sliding block 18, an adjusting nut 19 and a sliding rod 20.

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.

Referring to fig. 1-3, a hot runner mold structure comprises mold legs 1 which are arranged oppositely, the tops of the two mold legs 1 are fixed to a lower mold 2 through countersunk screws, the top of the lower mold 2 is fixed with a guide pillar 3 through screws, the outside of the guide pillar 3 is assembled with an upper mold 4 in a sliding manner, a male mold core 21 and a female mold core 41 are respectively arranged on the lower mold 2 and the upper mold 4, a flow passage 5, a mounting groove 10 and a sliding groove 11 which are communicated with each other are respectively arranged inside the upper mold 4, a piston 8 is connected inside the sliding groove 11 in a sliding manner, an adjusting ball 12 is fixed to the end of the piston 8 through screws, and the adjusting ball 12 can move back and forth to adjust the flow in the flow passage 5; a disassembly block 9 is fixed inside the installation groove 10 through a countersunk head screw, and one side of the disassembly block 9 is provided with a profiling groove matched with the adjusting ball 12; the inside of last mould 4 is provided with the adjusting part.

The adjusting part comprises a worm 7 and a screw 16, the worm 7 is connected with a worm wheel 15 in a meshed manner, the worm wheel 15 is sleeved outside the screw 16, a through hole 6 communicated with each other is sequentially formed in the upper die 4, a rectangular groove 14 and a sliding hole are formed in the through hole 6, the worm 7 is embedded in the through hole 6, a sliding rod 20 is connected in the sliding hole in a sliding manner, one end of the sliding rod 20 is fixedly connected with a piston 8 through a screw, a groove 17 is formed in the other end of the sliding rod 20, a sliding block 18 is connected in the groove 17 in a sliding manner, an adjusting nut 19 is sleeved outside the screw 16, and the adjusting nut 19 is fixed in the groove 17 through a screw.

Wherein, through piston 8, adjusting ball 12, worm wheel 15, the setting of worm 7 and screw rod 16 isotructure, after rotating worm 7, worm 7 drive worm wheel 15 and screw rod 16 rotate, thereby make slide bar 20 drive piston 8 and make a round trip to slide, can adjust runner 5's size after adjusting ball 12 removes, when moulding plastics to different products, can avoid the too big cracked condition of part that leads to of pressure to take place, through the setting of dismantling piece 9, adjust the part at runner 5 and set up dismantled and assembled dismantlement piece 9, can clear up the sizing material of regulation department, long service life.

The top of the upper die 4 is provided with symmetrically arranged circular grooves, the end part of the worm 7 is welded with a rotating disc 13, and the rotating disc 13 is positioned inside the circular grooves.

The screw 16 is rotatably mounted between the rectangular groove 14 and the slide block 18 by means of bearings.

The number of the detaching blocks 9 is set to four, and the four detaching blocks 9 are symmetrically arranged on both sides of the two adjusting balls 12.

In the embodiment, after the die is closed, the upper die 4 and the lower die 2 are closed, the rubber material flows into the cavity through the runner 5, in the process, a person can rotate the two rotating discs 13 according to different products, the worm 7 is driven by the rotating discs 13 to rotate, the worm wheel 15 rotates, the worm wheel 15 drives the screw 16 to rotate, the nut moves under the action of the screw 16, at the moment, the sliding rod 20 can move along the sliding block 18, so that the piston 8 and the adjusting ball 12 are driven to move, the flow of the runner 5 is changed, the piston 8 is in sealed sliding connection with the chute 11, and the rubber material cannot overflow;

furthermore, part of the glue can be adhered to one side of the disassembling block 9 of the adjusting ball 12, and personnel can disassemble the disassembling block 9 to clean the inside, so that the service life is prolonged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A hot runner mold structure comprises mold feet (1) which are arranged oppositely, wherein the tops of the two mold feet (1) are fixed to a lower mold (2) through sunk screws, guide pillars (3) are fixed to the tops of the lower mold (2) through screws, an upper mold (4) is assembled outside the guide pillars (3) in a sliding mode, a male mold core (21) and a female mold core (41) are arranged on the lower mold (2) and the upper mold (4) respectively, the hot runner mold structure is characterized in that a runner (5), a mounting groove (10) and a sliding groove (11) which are communicated with each other are formed in the upper mold (4), a piston (8) is connected to the inside of the sliding groove (11) in a sliding mode, an adjusting ball (12) is fixed to the end portion of the piston (8) through screws, and the adjusting ball (12) can move back and forth to adjust the flow in the runner (5);

a disassembly block (9) is fixed inside the installation groove (10) through a sunk screw, and one side of the disassembly block (9) is provided with a profiling groove matched with the adjusting ball (12);

and an adjusting component is arranged in the upper die (4).

2. Hot runner mold structure according to claim 1, wherein the adjustment assembly comprises a worm (7) and a screw (16), the worm (7) is engaged with a worm wheel (15), the worm wheel (15) is sleeved outside the screw (16), the upper die (4) is internally provided with a through hole (6), a rectangular groove (14) and a sliding hole which are communicated with each other in sequence, the worm (7) is embedded in the through hole (6), a sliding rod (20) is connected in the sliding hole in a sliding mode, one end of the sliding rod (20) is fixedly connected with the piston (8) through a screw, a groove (17) is formed in the other end of the sliding rod (20), a sliding block (18) is connected in the groove (17) in a sliding mode, an adjusting nut (19) is sleeved outside the screw rod (16), the adjusting nut (19) is fixed inside the groove (17) through a screw.

3. The hot runner mold structure according to claim 2, wherein the top of the upper mold (4) is provided with symmetrically arranged circular grooves, the end of the worm (7) is welded with a rotating disc (13), and the rotating disc (13) is located inside the circular grooves.

4. Hot runner mold structure as claimed in claim 2, wherein the screw (16) is rotatably mounted between the rectangular groove (14) and the slide block (18) by means of bearings.

5. Hot runner mold structure as claimed in claim 1, characterized in that the number of the disassembly blocks (9) is set to four, four disassembly blocks (9) being symmetrically arranged on both sides of two adjustment balls (12).