CN113021813B - High-temperature-resistant ceramic heater for injection molding machine - Google Patents
High-temperature-resistant ceramic heater for injection molding machine Download PDFInfo
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- CN113021813B CN113021813B CN202110491913.8A CN202110491913A CN113021813B CN 113021813 B CN113021813 B CN 113021813B CN 202110491913 A CN202110491913 A CN 202110491913A CN 113021813 B CN113021813 B CN 113021813B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/74—Heating or cooling of the injection unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a high-temperature-resistant ceramic heater for an injection molding machine, wherein a screw pushing cavity is arranged in an integrated ceramic heating cylinder, the front end of the pushing direction of the screw pushing cavity is communicated with a funnel-shaped extruding cavity, electric conduction heating wires are uniformly distributed and wound around the screw pushing cavity and the extruding cavity which are attached to the inside of the integrated ceramic heating cylinder, the integrated ceramic heating cylinder is integrally arranged in an outer cylinder body, and a buffer spring for damping and buffering the integrated ceramic heating cylinder is arranged on the outer side wall of the integrated ceramic heating cylinder through a reserved mounting hole; the heating of the invention is not required to be transmitted by an intermediate mechanism, and the material pushing stirring and heating are directly carried out by the integrated ceramic heating cylinder which is a heat-conducting and material-pushing cylinder, and the heating coverage is wider, the heat loss is reduced, and the energy saving and environmental protection are better.
Description
Technical Field
The invention particularly relates to a ceramic heater, in particular to a high-temperature resistant ceramic heater for an injection molding machine.
Background
In the injection molding process of the injection molding machine, firstly, plastic particles are led into a material pushing barrel, the material pushing barrel is heated by a heating barrel arranged on the outer wall of the material pushing barrel, molten rubber materials are extruded outwards to an extrusion head through a screw rod of the material pushing barrel, the extrusion head extrudes the rubber materials into a molding template, if the rubber materials are molded into plastic parts with specific shapes through mold assembly, wherein, the heater of the injection molding machine is generally integrated and arranged on the outer wall of the pushing cylinder, the cylinder body is integrally heated in a heat conduction mode, although the pusher drum can be heated in a fully covered manner by arranging a plurality of heating drums, but the heating of the inner material cavity is realized by the heat conduction of the material pushing cylinder, the heat loss is large, the heating mechanisms of the extrusion cavity and the material pushing cavity are not connected, when the material cavity is heated, the rubber material in the extrusion cavity is easily not heated sufficiently, and the inverted extrusion cavity is not smooth or blocked.
Although there are a lot of modes of direct integration resistance wire at the pushing barrel inner wall at present, push away a material section of thick bamboo and generally adopt steels such as stainless steel to make, the heat resistance is poor, unstable under the high temperature state, easy heating oxidation, inversion life is shorter, consequently a lot of adoption ceramic heater, ceramic heater generally is the form constitution of ceramic shell parcel resistance wire, though the whole body of pottery can customize the barrel appearance, pottery itself is heat-resisting heat conduction, but the fragility is great, inconvenient installation of punching, and if the screw rod that pushes away the material directly penetrates inside cylindric ceramic heater, the rotation of screw rod and plastic granules's stirring cause huge trembling to pottery itself easily, the pottery very easily produces the crackle, invert life and reduce.
Therefore, in order to solve the above problems, a high temperature resistant ceramic heater for injection molding machine is needed.
Disclosure of Invention
The invention aims to provide a high-temperature-resistant ceramic heater for an injection molding machine, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a high-temperature resistant ceramic heater for an injection molding machine comprises an integrated ceramic heating cylinder, wherein a screw pushing cavity is arranged in the integrated ceramic heating cylinder, the front end of the pushing direction of the screw pushing cavity is communicated with a funnel-shaped extruding cavity, the opening of the extruding cavity is provided with a mold material connector for being connected with the feeding end of an external injection molding template, a screw penetrating reserved hole for the penetration of a pushing screw is reserved at the rear end of the pushing direction of the integrated ceramic heating cylinder, a feeding pipe reserved opening for installing a feeding pipe is formed in the side wall of the integrated ceramic heating cylinder adjacent to the screw penetrating reserved hole, electric conducting wires are uniformly distributed and wound around the screw pushing cavity and the extruding cavity and attached to the inner part of the integrated ceramic heating cylinder, the electric conducting wires are electrically connected with an external controller through a power control wire led out from the rear end face of the integrated ceramic heating cylinder, the inner wall of the screw penetrating reserved hole, the inner wall of the feeding pipe reserved opening and the outer wall of the integrated ceramic heating cylinder are integrally formed with reserved mounting holes for installing a sealing mechanism, the utility model discloses a ceramic heating cylinder, including integrative ceramic heating cylinder, the lateral wall of integrative ceramic heating cylinder is equipped with the screw rod section of thick bamboo snap ring joint, the screw rod section of thick bamboo is equipped with the screw rod section of thick bamboo snap ring joint, and the screw rod section of thick bamboo is equipped with the buffer spring that is used for carrying out the shock attenuation buffering to integrative ceramic heating cylinder whole through reserving the mounting hole.
Further scheme: sealing mechanism is including reserving mounting hole and preformed hole inserted bar, a plurality of draw-in grooves have been seted up along vertical direction to the pore wall of reserving the mounting hole, and the lateral wall of preformed hole inserted bar is fixed with the sealed arch of multilayer, and the preformed hole inserted bar inserts in the preformed mounting hole, and in the sealed embedding draw-in groove of sealed arch.
Further scheme: the utility model discloses a screw rod section of thick bamboo snap ring, including screw rod section of thick bamboo snap ring, joint sealing ring card includes joint sealing ring, damping ring and a section of thick bamboo snap ring, the joint sealing ring card is worn to establish in the preformed hole at the screw rod, and the outer wall of joint sealing ring is fixed with a plurality ofly the preformed hole inserted bar, the screw rod is worn to establish the preformed hole inner wall and has been seted up a plurality of mounting holes of reserving, and the joint sealing ring is provided with the bearing that is used for rotating the support to push away material screw rod in the preformed mounting hole that the screw rod was worn to establish the preformed hole through preformed hole inserted bar cartridge card, the embedded rear end face department of fixing at outer barrel that wears to establish of section of thick bamboo snap ring, and damping ring and joint sealing ring and a section of thick bamboo snap ring coaxial line are connected between joint sealing ring and a section of thick bamboo snap ring, are provided with the bearing that is used for rotating the support to push away material screw rod with outer barrel and are equipped with the heat-resistant sealing washer in the joint sealing ring.
Further scheme: a plurality of mounting holes of reserving have evenly been seted up to the lateral wall of integrative ceramic heating section of thick bamboo, and the cartridge has in the reservation mounting hole the reservation hole inserted bar, the outer end of reservation hole inserted bar is fixed with the spring case mounting panel of the integrative ceramic heating section of thick bamboo lateral wall of laminating, and fixed mounting has buffer spring on the spring case mounting panel, buffer spring's the outer end and the inner wall fixed connection of outer barrel.
Further scheme: a plurality of reserved mounting holes are evenly formed in the inner wall of the feeding pipe reserved opening, the reserved hole inserting rod is inserted into the reserved mounting holes through a sealing bulge in a sealing and inserting mode, the outer end head of the reserved hole inserting rod is fixed on the outer side wall of the feeding pipe, the bottom end of the feeding pipe is communicated with the inner portion of the material pushing cavity through the feeding pipe reserved opening, the top of the feeding pipe is sealed to penetrate through the side wall of the outer barrel, and a circle of feeding soft sealing ring is fixed between the feeding pipe and the penetrating position of the outer barrel.
Further scheme: the interface of the electric conduction heating wire and the outer cylinder body is made of hard materials, and the interface of the electric conduction heating wire and the integrated ceramic heating cylinder is made of soft materials.
Further scheme: and a heat-insulating elastic material is filled between the integrated ceramic heating cylinder and the outer cylinder body.
Further scheme: the integral ceramic heating cylinder is integrally made of wear-resistant heat-conducting ceramic.
Compared with the prior art, the invention has the beneficial effects that: the heating of the invention does not need to be transmitted by an intermediate mechanism, the pushing stirring and the heating are directly carried out by the integrated ceramic heating cylinder which is a heat-conducting pushing cylinder body, the heating coverage is wider, the screw pushing cavity and the extruding cavity can realize heating without dead angles, the heat loss is reduced, the energy is saved, the environment is protected, the sealing mechanism does not need to damage the integral structure of the integrated ceramic heating cylinder in the installation process, the vibration influence on the integrated ceramic heating cylinder when the pushing screw pushes materials in the integrated ceramic heating cylinder can be effectively counteracted by matching with the elastic support, the risk of cracks generated on the integrated ceramic heating cylinder is reduced, and the service life of the whole integrated ceramic heating cylinder is prolonged.
Drawings
FIG. 1 is a schematic structural view of an injection molding machine with a high temperature resistant ceramic heater mounted on an outer cylinder of the injection molding machine.
FIG. 2 is a schematic diagram of the internal structure of an integrated ceramic heating cylinder in a high temperature resistant ceramic heater for an injection molding machine.
FIG. 3 is a schematic diagram of an external structure of an integrated ceramic heating cartridge in a high temperature resistant ceramic heater for an injection molding machine.
FIG. 4 is a schematic view of a structure of a buffer spring in a high temperature ceramic heater for an injection molding machine.
FIG. 5 is a schematic structural view of a screw cylinder snap ring in a high temperature resistant ceramic heater for an injection molding machine.
In the figure: the device comprises an integrated ceramic heating cylinder 1, a screw pushing cavity 10, a screw penetrating preformed hole 11, an extruding cavity 12, a mold material connector 13, a discharging pipe preformed opening 14, a preformed mounting hole 15, an electric conduction heating wire 16, a power control line 17, a preformed hole inserted rod 2, a sealing protrusion 20, an outer cylinder body 3, a feeding soft sealing ring 30, a screw cylinder clamping ring 31, a clamping sealing ring 32, a damping ring 33, a cylinder clamping ring 34, a feeding pipe 35, a buffer spring 4, a spring cylinder mounting plate 40, a pushing screw 5 and a connector mounting plate 6.
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.
Example 1
Referring to fig. 1 to 5, in the embodiment of the present invention, a high temperature resistant ceramic heater for an injection molding machine includes an integrated ceramic heating cylinder 1, a screw pushing cavity 10 is disposed in the integrated ceramic heating cylinder 1, a funnel-shaped extruding cavity 12 is communicated with a front end of the screw pushing cavity 10 in a pushing direction, a mold material connector 13 for connecting with a feeding end of an external injection molding plate is disposed at an opening of the extruding cavity 12, a screw penetrating preformed hole 11 for inserting a pushing screw 5 is reserved at a rear end of the integrated ceramic heating cylinder 1 in the pushing direction, a feeding pipe preformed opening 14 for installing a feeding pipe 35 is disposed on a side wall of the integrated ceramic heating cylinder 1 adjacent to the screw penetrating preformed hole 11, electric conductive wires 16 are uniformly distributed and wound around the screw pushing cavity 10 and the extruding cavity 12 inside the integrated ceramic heating cylinder 1, and the electric conductive wires 16 are electrically connected with an external controller through a power control wire 17 led out from the rear end face of the integrated ceramic heating cylinder 1, a reserved mounting hole 15 for mounting a sealing mechanism is integrally formed on the inner wall of the reserved hole 11, the inner wall of the feeding pipe reserved opening 14 and the outer wall of the integrated ceramic heating cylinder 1 through the screw, the integral ceramic heating cylinder 1 is integrally arranged in the outer cylinder body 3, the end of a mould material joint 13 of the integral ceramic heating cylinder 1 penetrates out from the front end face of the outer cylinder body 3, the outer side wall of the position where the mould material joint 13 penetrates out is provided with an electric conduction heating wire 16 which is fixedly connected with the outer cylinder body 3 through a reserved mounting hole 15, the rear end of the integral ceramic heating cylinder 1 is clamped and fixed on the rear end face of the outer cylinder body 3 through a screw cylinder clamping ring 31, a material pushing screw rod 5 penetrates into a screw rod material pushing cavity 10 through the screw cylinder clamping ring 31 in a sealing and rotating manner, the outer side wall of the integrated ceramic heating cylinder 1 is provided with a buffer spring 4 for damping and buffering the whole body of the integrated ceramic heating cylinder 1 through a reserved mounting hole 15.
Sealing mechanism is including reserving mounting hole 15 and preformed hole inserted bar 2, a plurality of draw-in grooves have been seted up along vertical direction to the pore wall of reserving mounting hole 15, the lateral wall of preformed hole inserted bar 2 is fixed with the sealed arch 20 of multilayer, preformed hole inserted bar 2 inserts in reserving mounting hole 15, sealed protruding 20 seals embedding draw-in groove, wherein reserve mounting hole 15 when integrated into one piece, will reserve mounting hole 15 through the mould that appearance and preformed hole inserted bar 2 are unanimous and reserve the shaping, when the installation, need not 1 whole surface of integrative ceramic heater section of thick bamboo to punch again, structure through reserving mounting hole 15 and preformed hole inserted bar 2 cooperation joint is used for installing outside elastomeric element, wear to establish preformed hole 11 at the screw rod, the installation of unloading pipe preformed mouth 14 and electric conductance hot filament 16 carries out erection joint with same mode.
The screw cylinder clamping ring 31 comprises a clamping sealing ring 32, a damping ring 33 and a cylinder clamping ring 34, the clamping sealing ring 32 is clamped in a preformed hole 11 penetrated by a screw, a plurality of preformed hole inserting rods 2 are fixed on the outer wall of the clamping sealing ring 32, a plurality of reserved mounting holes 15 are formed in the inner wall of the preformed hole 11 penetrated by the screw, the clamping sealing ring 32 is inserted and clamped in the reserved mounting holes 15 penetrated by the screw through the preformed hole inserting rods 2, the cylinder clamping ring 34 is embedded and fixed at the rear end face of the outer cylinder body 3 in a penetrating manner, the damping ring 33, the clamping sealing ring 32 and the cylinder clamping ring 34 are coaxially connected between the clamping sealing ring 32 and the cylinder clamping ring 34, a bearing for rotatably supporting the pushing screw 5 is arranged in the cylinder clamping ring 34, an elastic layer is arranged on the joint face of the damping ring 33, the outer cylinder body 3 and the integrated ceramic heating cylinder 1, and a heat-resistant sealing ring for hermetically wrapping the pushing screw 5 is arranged in the clamping sealing ring 32, the screw cylinder clamping ring 31 is mainly used for supporting and fixing the rear end of the integrated ceramic heating cylinder 1, and meanwhile, a sealing mechanism is matched to ensure that the pushing screw 5 is inserted in a rotating mode, wherein the cylinder clamping ring 34 is used for rotatably supporting, the damping ring 33 is used for offsetting the rigid connection between the integrated ceramic heating cylinder 1 and the outer cylinder body 3, and the clamping sealing ring 32 is mainly used for sealing.
A plurality of mounting holes 15 of reserving have evenly been seted up to the lateral wall of integrative ceramic heating section of thick bamboo 1, reserve the 15 interpolations of mounting hole and are equipped with preformed hole inserted bar 2, the outer end of preformed hole inserted bar 2 is fixed with the spring cylinder mounting panel 40 of the 1 lateral wall of integrative ceramic heating section of thick bamboo of laminating, fixed mounting has buffer spring 4 on the spring cylinder mounting panel 40, buffer spring 4's outer end and the inner wall fixed connection of outer barrel 3, here again through the sealing mechanism installation to carry out absorbing buffer spring 4 to integrative ceramic heating section of thick bamboo 1 whole, reduce because push away the vibration that material screw 5 rotates the in-process and produce integrative ceramic heating section of thick bamboo 1 along radial, prevent that integrative ceramic heating section of thick bamboo 1 from producing the crack.
A plurality of reserved mounting holes 15 are uniformly formed in the inner wall of the feeding pipe reserved opening 14, a reserved hole inserting rod 2 is inserted into the reserved mounting holes 15 in a sealing mode through a sealing protrusion 20, the outer end of the reserved hole inserting rod 2 is fixed to the outer side wall of a feeding pipe 35, the bottom end of the feeding pipe 35 is communicated with the interior of a screw pushing cavity 10 through the feeding pipe reserved opening 14, the top of the feeding pipe 35 penetrates through the side wall of an outer barrel 3 in a sealing mode, a circle of feeding soft sealing ring 30 is fixed between the feeding pipe 35 and the penetrating position of the outer barrel 3, the bottom of the arranged feeding pipe 35 penetrates into the screw pushing cavity 10 through a sealing mechanism, the top of the feeding pipe 35 is penetrated through the feeding soft sealing ring 30, the outer barrel 3 mainly comprises the feeding soft sealing ring 30 which can generate tiny deformation, when the integral ceramic heating cylinder 1 generates vibration, the feeding pipe 35 cannot generate overhigh extrusion on the feeding pipe reserved opening 14 of the integral ceramic heating cylinder 1 due to hard connection, preventing cracks from being generated at the reserved opening 14 of the blanking pipe.
The joint of the electric conduction heating wire 16 and the outer cylinder body 3 is made of hard materials, and the joint of the electric conduction heating wire 16 and the integrated ceramic heating cylinder 1 is made of soft materials, so that the influence of vibration on the integrated ceramic heating cylinder 1 in the rotation process of the integrated ceramic heating cylinder 5 is reduced.
The working principle of the invention is as follows: when in installation, firstly, the pushing screw 5 penetrates into the screw pushing cavity 10 through the screw penetrating preformed hole 11, then the screw barrel clamping ring 31 is sleeved forwards from the rear end of the pushing screw 5 and moves to the screw penetrating preformed hole 11 for clamping, then the integrated ceramic heating barrel 1 is integrally arranged in the outer barrel 3, when the integrated ceramic heating barrel 1 is transversely arranged, the rear end of the pushing screw 5 is firstly inserted backwards into the opening of the rear end face of the outer barrel 3, the front end of the integrated ceramic heating barrel 1 is fixed through the connector mounting plate 6, then the barrel clamping ring 34 of the screw barrel clamping ring 31 is fixed at the opening of the rear end face of the outer barrel 3, then the feeding pipe 35 is inserted into the feeding pipe preformed opening 14 from top to bottom for clamping, the buffer spring 4 between the integrated ceramic heating barrel 1 and the outer barrel 3 is fixedly mounted, and then the inner cavity between the integrated ceramic heating barrel 1 and the outer barrel 3 is filled with heat-insulating elastic material, until the integrated ceramic heating cylinder 1 is tightly filled, before filling, a power control line 17 is led out outwards to be connected with an external controller, the integrated ceramic heating cylinder 1 is integrally installed, when in work, an electric conduction heating wire 16 synchronously heats the insides of a screw pushing cavity 10 and a material extruding cavity 12, heating is not required to be transmitted through an intermediate mechanism, material pushing, stirring and heating are directly carried out through the integrated ceramic heating cylinder 1 which is a heat conduction and material pushing cylinder body, the heating coverage surface is wider, heating without dead angles can be realized in the screw pushing cavity 10 and the material extruding cavity 12, heat loss is reduced, energy is saved, environment is protected, the whole structure of the integrated ceramic heating cylinder 1 is not required to be damaged in the installation process through a sealing mechanism, and vibration influence on the integrated ceramic heating cylinder 1 when the material pushing screw rod 5 pushes the material in the integrated ceramic heating cylinder 1 can be effectively counteracted through matching elastic support, the risk of cracks generated in the integrated ceramic heating cylinder 1 is reduced, and the service life of the whole integrated ceramic heating cylinder 1 is prolonged.
Example 2
This example differs from example 1 in that:
it has thermal-insulated elastic material to fill between integrative ceramic heating cylinder 1 and the outer barrel 3, wherein heat-resistant elastic material can be for being full of the heat-resistant elastic particle of inner chamber between integrative ceramic heating cylinder 1 and the outer barrel 3, thermal-insulated environmental protection cotton or thermal insulation material and the combination of elastic material, for example elastic material is laid to the skin of integrative ceramic heating cylinder 1, thermal-insulated environmental protection cotton is being filled between elastic material and the outer barrel 3 inner wall, on the one hand carry out the auxiliary stay and slow down the vibration buffering to integrative ceramic heating cylinder 1, on the other hand keeps warm to integrative ceramic heating cylinder 1, prevent the outside high temperature of outer barrel 3.
The integral ceramic heating cylinder 1 is integrally made of wear-resistant heat-conducting ceramic, for example, special corundum ceramic, the Rockwell hardness of the ceramic is HRA80-90, the hardness of the ceramic is second to that of diamond and far exceeds that of wear-resistant steel and stainless steel, the heat conductivity coefficient, the bending strength, the fracture toughness and the compressive strength of the ceramic are high, and the ceramic can be well attached to the functions of the scheme by using the special corundum ceramic.
It will be evident to those skilled in the art that the invention 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 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.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (5)
1. A high-temperature resistant ceramic heater for an injection molding machine comprises an integrated ceramic heating cylinder (1) and is characterized in that a screw pushing cavity (10) is arranged in the integrated ceramic heating cylinder (1), the front end of the pushing direction of the screw pushing cavity (10) is communicated with a funnel-shaped extruding cavity (12), a mold material connector (13) connected with the feeding end of an external injection molding template is arranged at the opening of the extruding cavity (12), a screw penetrating preformed hole (11) for pushing a material screw (5) to penetrate is reserved at the rear end of the pushing direction of the integrated ceramic heating cylinder (1), a blanking pipe preformed opening (14) for installing a feeding pipe (35) is formed in the side wall of the integrated ceramic heating cylinder (1) adjacent to the screw penetrating preformed hole (11), and electric conduction wires (16) are uniformly distributed and wound around the laminating screw pushing cavity (10) and the extruding cavity (12) in the integrated ceramic heating cylinder (1), the electric heat wire (16) is electrically connected with an external controller through a power control line (17) led out from the rear end face of the integrated ceramic heating cylinder (1), the screw rod penetrates through the inner wall of a reserved hole (11), the inner wall of a feeding pipe reserved opening (14) and the outer wall of the integrated ceramic heating cylinder (1) to be integrally formed with a reserved mounting hole (15), the integrated ceramic heating cylinder (1) is integrally arranged in the outer cylinder body (3), the end of a mold material connector (13) of the integrated ceramic heating cylinder (1) penetrates out from the front end face of the outer cylinder body (3), the outer side wall of the penetrating position of the mold material connector (13) is provided with the electric heat wire (16) fixedly connected with the outer cylinder body (3) through the reserved mounting hole (15), the rear end of the integrated ceramic heating cylinder (1) is clamped and fixed on the rear end face of the outer cylinder body (3) through a screw rod clamping ring (31), the pushing screw rod (5) penetrates into a material pushing cavity (10) through the screw rod clamping ring (31) in a sealed rotating mode, the outer side wall of the integrated ceramic heating cylinder (1) is provided with a buffer spring (4) which is used for damping and buffering the whole body of the integrated ceramic heating cylinder (1) through a reserved mounting hole (15).
2. The high-temperature-resistant ceramic heater for the injection molding machine according to claim 1, wherein a plurality of clamping grooves are formed in the wall of the reserved mounting hole (15) in the vertical direction, a plurality of layers of sealing protrusions (20) are fixed on the outer side wall of the reserved hole insertion rod (2), the reserved hole insertion rod (2) is inserted into the reserved mounting hole (15), and the sealing protrusions (20) are hermetically embedded into the clamping grooves.
3. The high-temperature-resistant ceramic heater for the injection molding machine is characterized in that the screw cylinder clamping ring (31) comprises a clamping sealing ring (32), a damping ring (33) and a cylinder clamping ring (34), the clamping sealing ring (32) is clamped in a preformed hole (11) penetrated by a screw, a plurality of preformed hole insertion rods (2) are fixed on the outer wall of the clamping sealing ring (32), a plurality of preformed mounting holes (15) are formed in the inner wall of the preformed hole (11) penetrated by the screw, the clamping sealing ring (32) is clamped in the preformed mounting holes (15) penetrated by the preformed hole (11) through the preformed hole insertion rods (2), the cylinder clamping ring (34) is embedded and fixed at the rear end face of the outer cylinder body (3) in a penetrating manner, and the damping ring (33) is connected between the clamping sealing ring (32) and the cylinder clamping ring (34) with the same axial lead of the clamping sealing ring (32) and the cylinder clamping sealing ring (34), a bearing for rotatably supporting the pushing screw rod (5) is arranged in the cylinder clamping ring (34), an elastic layer is arranged on the joint surface of the damping ring (33) and the outer cylinder body (3) as well as the integrated ceramic heating cylinder (1), and a heat-resistant sealing ring for hermetically wrapping the pushing screw rod (5) is arranged in the clamping sealing ring (32).
4. The high-temperature resistant ceramic heater for the injection molding machine according to claim 2, characterized in that a plurality of reserved mounting holes (15) are uniformly formed in the side wall of the integrated ceramic heating cylinder (1), the reserved mounting holes (15) are inserted with the reserved hole insertion rods (2), the outer end of each reserved hole insertion rod (2) is fixed with a spring cylinder mounting plate (40) attached to the outer side wall of the integrated ceramic heating cylinder (1), a buffer spring (4) is fixedly mounted on each spring cylinder mounting plate (40), and the outer end of each buffer spring (4) is fixedly connected with the inner wall of the outer cylinder body (3).
5. The high-temperature resistant ceramic heater for the injection molding machine according to claim 2, characterized in that a plurality of reserved mounting holes (15) are uniformly formed in the inner wall of the feeding pipe reserved opening (14), the reserved hole inserted rod (2) is inserted into the reserved mounting holes (15) through the sealing protrusion (20) in a sealing manner, the outer end of the reserved hole inserted rod (2) is fixed on the outer side wall of the feeding pipe (35), the bottom end of the feeding pipe (35) is communicated with the inside of the screw pushing cavity (10) through the feeding pipe reserved opening (14), the top of the feeding pipe (35) is sealed to penetrate through the side wall of the outer cylinder (3), and a circle of feeding soft sealing ring (30) is fixed between the feeding pipe (35) and the penetrating position of the outer cylinder (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110491913.8A CN113021813B (en) | 2021-05-06 | 2021-05-06 | High-temperature-resistant ceramic heater for injection molding machine |
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| CN202110491913.8A CN113021813B (en) | 2021-05-06 | 2021-05-06 | High-temperature-resistant ceramic heater for injection molding machine |
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| CN113021813B true CN113021813B (en) | 2022-07-29 |
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| CN113681679A (en) * | 2021-09-09 | 2021-11-23 | 盐城工学院 | Colloidal injection molding device for ceramics |
| CN113733337A (en) * | 2021-09-14 | 2021-12-03 | 盐城工学院 | Composite ceramic injection molding machine |
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| CN209141398U (en) * | 2018-09-04 | 2019-07-23 | 南京智田机电有限责任公司 | A kind of barrel that anticorrosive property is good |
| CN109664477A (en) * | 2018-12-29 | 2019-04-23 | 南京九腾电子科技有限公司 | A kind of material cylinder structure for injection molding machine |
| CN209718541U (en) * | 2019-03-14 | 2019-12-03 | 南京华顺精密模具有限公司 | A kind of material extrusion device of new-energy automobile power battery protection outer casing mold |
| CN212097401U (en) * | 2020-03-04 | 2020-12-08 | 必盛达机械装备(河源)有限公司 | Charging barrel heating device of injection molding machine |
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| CN113021813A (en) | 2021-06-25 |
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