SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an injection molding head for injection molding machine with prevent leaking mechanism to solve the problem that proposes among the above-mentioned background art.
The technical scheme of the utility model is that: an injection head with a leakage-proof mechanism for an injection molding machine comprises a connecting pipe and an injection head, wherein one side end part of the connecting pipe is connected with the injection molding machine, the other end of the connecting pipe is fixedly connected with a connecting disc, the inside of the connecting disc is communicated with the inside of the connecting pipe, the bottom of the connecting disc is fixedly connected with a feeding pipe, a cavity is arranged in the feeding pipe and is communicated with the inside of the connecting disc, the inner wall of the cavity is fixedly connected with a plurality of springs, the bottom of each spring is fixedly connected with a connecting sleeve, the peripheral wall of the connecting sleeve is hermetically connected with the inner peripheral wall of the feeding pipe, a through hole is arranged on the connecting sleeve, the opening with the cavity intercommunication, the adapter sleeve bottom with the first threaded connection of moulding plastics, the first bottom fixedly connected with shower nozzle of moulding plastics, the conveying pipe periphery wall is provided with the leak protection subassembly, the last pressure release mouth of having seted up of conveying pipe.
Preferably, the top of the connecting sleeve is fixedly connected with a connecting ring, the inner wall of the cavity is fixedly connected with a sleeve ring, the sleeve ring is embedded into the connecting ring and connected with the inner wall of the feeding pipe, and the spring is arranged between the sleeve ring and the inner wall of the feeding pipe.
Preferably, both sides of the opening at the bottom of the lantern ring are fixedly connected with shoveling knives which are abutted against the outer wall of the connecting ring.
Preferably, the leakage-proof assembly comprises a sealing sleeve, a thread sleeve is fixedly connected to the top of the sealing sleeve, a thread groove is fixedly connected to the outer peripheral wall of the feeding pipe, the thread sleeve is in threaded connection with the thread groove, the inner peripheral wall of the sealing sleeve is abutted to the outer wall of the injection molding head, and a recovery pipe is connected to the thread sleeve in a penetrating mode.
Preferably, the seal cover is inside to be seted up the annular, a plurality of elastic sleeve of fixedly connected with in the annular, elastic sleeve tip rotates to be connected with and supports the board, support the board with the annular is close to a lateral wall conflict of moulding plastics the head.
Preferably, a water inlet pipe and a water outlet pipe penetrate through the annular groove.
Preferably, the injection head is in the shape of an inverted frustum.
The utility model discloses an improve and provide a head of moulding plastics for injection molding machine with prevent leaking mechanism here, compare with prior art, have following improvement and advantage:
one is as follows: the injection molding material is fed into the material feeding pipe through the connecting pipe, then enters the injection molding head, and finally is sprayed out through the spray head, the injection molding head is in threaded connection with the material feeding pipe, so that the disassembly and the assembly of the injection molding head are facilitated, when the injection molding material is blocked in the injection molding head and the spray head, the injection molding material can be accumulated in the material feeding pipe to cause the blockage of the through hole, at the moment, the connecting sleeve can be pressurized, so that the connecting sleeve can move downwards under the driving of the pressure, then the blocked injection molding material is discharged through the pressure relief port, and the position where the sealing sleeve is in conflict with the injection molding head is lower than the position where the injection molding head is in threaded connection with the connecting sleeve, so that when the connection part of the injection molding head and the connecting sleeve is leaked, the leaked injection molding material and the injection molding material discharged from the pressure relief port can enter the gap between the sealing sleeve and the material feeding pipe, and then the leaked injection molding material can be effectively recovered through the recovery pipe, the waste of injection molding materials is avoided, and the situation of high-pressure collapse is avoided;
and the second step is as follows: the utility model discloses in when the dismouting is moulded plastics the head, at first will mould plastics head and adapter sleeve threaded connection, then carry out threaded connection with the seal cover with the conveying pipe, from this along with the increase of the external diameter of the head of moulding plastics, thereby increase the sealed effect of conflict of seal cover to the first outer wall of moulding plastics, improve the leakproofness, wherein the elastic sleeve is used for adapting to the change of the first external diameter of moulding plastics, and provide the holding power to the seal cover, ensure the structural strength of seal cover, wherein mould plastics the in-process, the injection molding material is moulded plastics including high temperature, the head of moulding plastics this moment is in high temperature state, through inlet tube and outlet pipe, realize the circulation of cooling water in the annular, thereby can be timely cool down the seal cover, improve the life of seal cover.
Detailed Description
The present invention will be described in detail below, and it is apparent that the technical solutions in the embodiments of the present invention are described clearly and completely. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The utility model discloses an improve and provide a head of moulding plastics for injection molding machine with prevent leaking mechanism here, the technical scheme of the utility model is:
as shown in fig. 1-5, an injection molding head for an injection molding machine with a leakage-proof mechanism comprises a connecting pipe 1 and an injection molding head 2, one side end of the connecting pipe 1 is connected with the injection molding machine, the other end of the connecting pipe 1 is fixedly connected with a connecting disc 3, the inside of the connecting disc 3 is communicated with the inside of the connecting pipe 1, a feeding pipe 4 is fixedly connected to the bottom of the connecting disc 3, a cavity 401 is formed inside the feeding pipe 4, the cavity 401 is communicated with the inside of the connecting disc 3, a plurality of springs 402 are fixedly connected to the inner wall of the cavity 401, a connecting sleeve 403 is fixedly connected to the bottom of the springs 402, the peripheral wall of the connecting sleeve 403 is hermetically connected with the inner peripheral wall of the feeding pipe 4, a through hole 404 is formed in the connecting sleeve 403, the through hole 404 is communicated with the cavity 401, the bottom of the connecting sleeve 403 is in threaded connection with the injection molding head 2, a spray head 201 is fixedly connected to the bottom of the injection molding head 2, a leakage-proof assembly is arranged on the peripheral wall of the feeding pipe 4, and a hole 405 is formed in the feeding pipe 4.
Specifically, the method comprises the following steps: the injection molding material is sent into the feeding pipe 4 through taking over 1, then enter into the first 2 of moulding plastics, spout through shower nozzle 201 at last, the first 2 of moulding plastics and 4 threaded connection of feeding pipe, the dismouting of the first 2 of moulding plastics of being convenient for, when the injection molding material takes place to block up in the first 2 of moulding plastics and shower nozzle 201, the injection molding material can be piled up in feeding pipe 4, cause the jam of port 404, adapter sleeve 403 can receive pressure this moment, thereby make adapter sleeve 403 remove downwards under the drive of pressure, then the injection molding material of jam passes through pressure release port 405 and discharges, then can shut down and repair, the condition of high pressure collapse is avoided appearing, and spring 402 is used for the reseing of adapter sleeve 403.
The top of the connecting sleeve 403 is fixedly connected with a connecting ring 5, the inner wall of the cavity 401 is fixedly connected with a lantern ring 501, the lantern ring 501 is embedded and connected with the connecting ring 5, and the spring 402 is positioned between the lantern ring 501 and the inner wall of the feeding pipe 4.
Both sides of the bottom opening of the lantern ring 501 are fixedly connected with a scraper knife 502, and the scraper knife 502 is abutted against the outer wall of the connecting ring 5.
Specifically, the method comprises the following steps: the lantern ring 501 and the connecting ring 5 are used for preventing injection molding materials from being blocked in the spring 402 so as to guarantee the normal function of the spring 402, wherein the scraper knife 502 can scrape the injection molding materials on the outer wall of the connecting ring 5, and the injection molding materials are prevented from entering the inner cavity of the lantern ring 501.
The leak protection subassembly includes seal cover 6, 6 top fixedly connected with thread bush 601 of seal cover, 4 periphery walls fixedly connected with thread groove 602 of conveying pipe, thread bush 601 and thread groove 602 threaded connection, 6 internal perisporium of seal cover contradicts with the first 2 outer walls of moulding plastics, the last through connection of thread bush 601 has recovery tube 604.
Specifically, the method comprises the following steps: after moulding plastics first 2 and adapter sleeve 403 threaded connection, with seal cover 6 and thread groove 602 threaded connection, seal cover 6 and the first 2 outer walls of moulding plastics are contradicted sealedly this moment, strengthen sealing performance, and the position that seal cover 6 and the first 2 of moulding plastics are contradicted is less than the position of moulding plastics first 2 and adapter sleeve 403 threaded connection, thereby when moulding plastics first 2 and adapter sleeve 403 junction and taking place to reveal, the injection molding material of revealing can enter into the clearance between seal cover 6 and the conveying pipe 4, carry out effectual recovery through recovery tube 604 to the injection molding material of revealing after that, avoid the waste of injection molding material.
The injection head 2 is in the shape of an inverted frustum.
Specifically, the method comprises the following steps: when the first 2 of moulding plastics of dismouting, at first with moulding plastics first 2 and adapter sleeve 403 threaded connection, then carry out threaded connection with seal cover 6 and conveying pipe 4, from this along with the increase of the external diameter of the first 2 of moulding plastics to increase the sealed effect of conflict of seal cover 6 to the first 2 outer walls of moulding plastics, improve the leakproofness.
A ring groove 603 is formed in the sealing sleeve 6, a plurality of elastic sleeves 605 are fixedly connected in the ring groove 603, the end portions of the elastic sleeves 605 are rotatably connected with a resisting plate 606, and the resisting plate 606 is abutted against one side wall, close to the injection molding head 2, of the ring groove 603.
The annular groove 603 is connected with a water inlet pipe 7 and a water outlet pipe 701 in a penetrating way.
Specifically, the method comprises the following steps: elastic sleeve 605 is used for adapting to the change of the first 2 external diameters of moulding plastics, and provides the holding power to seal cover 6, ensures seal cover 6's structural strength, wherein the in-process of moulding plastics, and the injection molding material is moulded plastics including high temperature, and the first 2 of moulding plastics this moment is in the high temperature state, through inlet tube 7 and outlet pipe 701, realizes the circulation of cooling water in annular 603 to can be timely cool down seal cover 6, improve seal cover 6's life.
The working principle is as follows: the injection molding material is fed into the feeding pipe 4 through the connecting pipe 1, then enters the injection molding head 2, and finally is sprayed out through the spray head 201, the injection molding head 2 is in threaded connection with the feeding pipe 4, so that the injection molding head 2 can be conveniently assembled and disassembled, when the injection molding material is blocked in the injection molding head 2 and the spray head 201, the injection molding material can be accumulated in the feeding pipe 4 to cause the blockage of the through port 404, at the moment, the connecting sleeve 403 can be under pressure, so that the connecting sleeve 403 can move downwards under the driving of the pressure, then the blocked injection molding material is discharged through the pressure relief port 405, the position where the sealing sleeve 6 is abutted against the injection molding head 2 is lower than the position where the injection molding head 2 is in threaded connection with the connecting sleeve 403, therefore, when the connection part of the injection molding head 2 and the connecting sleeve leaks, the leaked injection molding material and the injection molding material discharged from the pressure relief port 405 can enter the gap between the sealing sleeve 403 and the feeding pipe 4, and then the leaked injection molding material can be effectively recovered through the recovery pipe 604, avoid the waste of injection molding material, avoid appearing the condition that the high pressure collapses badly, when the dismouting is moulded plastics first 2, at first will mould plastics first 2 and adapter sleeve 403 threaded connection, then carry out threaded connection with seal cover 6 and conveying pipe 4, from this along with the increase of the external diameter of the first 2 of moulding plastics, thereby increase the sealed effect of conflict of seal cover 6 to the first 2 outer walls of moulding plastics, improve the leakproofness, wherein elastic sleeve 605 is used for adapting to the change of the first 2 external diameters of moulding plastics, and provide holding power to seal cover 6, guarantee seal cover 6's structural strength, wherein mould plastics the in-process, the injection molding material is moulded plastics including high temperature, the head 2 of moulding plastics this moment is in high temperature state, through inlet tube 7 and outlet pipe 701, realize the circulation of cooling water in annular 603, thereby can be timely cool down seal cover 6, improve seal cover 6's life.