842 results about "Hot runner" patented technology

The invention discloses a temperature control system and method for a hot runner of an injection molding machine mold, and the method comprises the steps that the temperature control system collects the temperature data of each region of the hot runner in real time through a temperature sensor, and carries out the adjustment according to the data feedback; a built-in self-adaptive algorithm automatically adjusts a temperature control strategy according to different injection molding materials and production requirements, such as temperature upper limit, temperature lower limit and heating and cooling opportunities, and the production efficiency is optimized; when the system recognizes temperature fluctuation, a heating mode or a cooling mode is automatically switched, and the cooling system is dynamically adjusted for temperature balance; a plurality of temperature sensors are arranged in a key area of the mold for regional monitoring, and temperature control output is adjusted in real time; meanwhile, an embedded learning algorithm gradually optimizes a temperature control strategy according to historical production data, adjusts control parameters, and improves the production precision and efficiency. According to the temperature control system and the temperature control method for the mold hot runner of the injection molding machine, the problems of low temperature control precision, poor energy efficiency and slow response in the prior art are solved, and efficient and intelligent temperature control capability is provided.

The invention belongs to the field of production control, and particularly discloses a control method of a thick-wall optical product precision injection molding hot runner system, which comprises the following steps of: acquiring mold geometric data of local thickness distribution in a mold-containing cavity along a melt flowing direction, calculating theoretical cooling time constants of each region by combining material thermophysical parameters, and calculating the cooling time constant of each region; establishing a thickness-cooling rate mapping relation model; predicting the time when the melt reaches each area and the effective cooling time according to an injection time sequence; solving a temperature compensation value of a heating area corresponding to the hot runner by taking the minimum final temperature variance when the key area is ejected as a target; and finally, dynamically applying a compensation value according to a time sequence before the melt arrives, and withdrawing / adjusting after region filling is completed or a pressure maintaining stage is entered. The invention can balance the temperature field of the mold cavity, reduce the refractive index gradient and shrinkage defect, improve the optical performance and yield of the product, and is suitable for precise injection molding of the thick-wall optical product.

The invention relates to the technical field of energy storage module temperature control, in particular to an energy storage module multi-environment temperature automatic regulation and control unit and a regulation and control method thereof.The energy storage module multi-environment temperature automatic regulation and control unit comprises an external protection frame body installed on the outer side of an energy storage module, and an internal heat exchange flow channel used for adjusting the heating value of the energy storage module is arranged in the external protection frame body. According to the energy storage module multi-environment temperature automatic regulation and control unit and the regulation and control method thereof provided by the invention, by adopting the liftable cover body structure design, the heat exchange mode of the energy storage module can be changed according to the temperature change of the internal environment and the external environment, so that the regulation and control performance of the energy storage module at different environment temperatures is improved, and the applicability is improved; the flow direction of an internal heat exchange runner is changed through lifting adjustment of the upper lifting cover, so that heat loss is switched, and the energy consumption of the energy storage module is reduced; and by adopting an automatic regulation and control mode, the operation accuracy can be improved.

The invention belongs to the technical field of temperature control, and discloses a temperature control method and device of a hot runner system for an inverted mold. The method comprises the following steps: defining a critical melt area in a physical sprue which directly influences the product quality in a sprue of a hot runner system as a virtual sprue; dynamically generating a melt viscosity target track of the virtual gate region according to the type of an injection molding material and an injection molding process stage; based on measurable injection molding process parameters and sprue area temperature, estimating a current melt viscosity value of a virtual sprue area in real time through a state observer; calculating to obtain an optimal power control sequence by adopting a multivariable model prediction controller; and driving a sprue area heater according to the optimal power control sequence, so that the actual change of the melt viscosity of the virtual sprue area tracks a melt viscosity target track. According to the invention, the defects such as salivation and wire drawing can be effectively eliminated, so that the sprue quality stability and the production efficiency are improved.

The utility model discloses a double-conveying direct cooling plate with a spiral capillary channel, the direct cooling plate comprises a structure substrate and a heat exchange cover plate which is overlapped and fixed on the structure substrate, the heat exchange cover plate is provided with a groove, and the groove is sealed by the structure substrate to form a heat exchange flow channel; the groove face of the heat exchange cover plate is provided with a plurality of spiral capillary conveying grooves in the flowing direction of a flow channel, the depth of each capillary conveying groove is 0.1-0.5 mm, and the width of each capillary conveying groove is 0.1-0.3 mm. And the runner is provided with a heat insulation layer on one surface of the structural substrate. According to the direct cooling plate, the spiral capillary channel structure is introduced to the wall face of the flow channel, the contact area of cooling liquid and the wall face is increased, a second conveying mode except the flow channel is provided, and therefore the heat transfer efficiency is remarkably improved. Meanwhile, the design can effectively relieve the formation of an air plug and avoid the occurrence of a heat dissipation dead point so as to adapt to battery packs of different types and powers and meet the temperature control requirements of the battery packs.

The invention discloses a hot runner mold, relates to the technical field of plastic forming molds, and solves the technical problems that a mold core of a traditional hot runner mold is mostly rigidly connected with a mold frame through a bolt and is not easy to replace, mother liquor is easy to remain on the inner wall of a hot runner, a large amount of machine washing materials are needed for washing when materials or colors are replaced, the demolding precision is low, and workpieces are easy to damage. A movable mold assembly is arranged on the right side of the fixed mold assembly, and mold core fixing mechanisms are arranged on the inner side of the fixed mold assembly and the inner side of the movable mold assembly. Through cooperative work of the mechanisms, a mold core fixing structure, a hot runner cleaning mechanism and demolding linkage are optimized, the mold is convenient to disassemble and assemble, and a mold core can be rapidly replaced to adapt to multi-specification production; the hot runner system is uniform in heating, clean, efficient and capable of rapidly switching materials or colors; the demolding is automatic and accurate, and the efficiency is improved; wire harness management is standard, and operation is stable; the structure is stable, the forming quality is guaranteed, the overall cost is reduced, efficient injection molding and demolding circulation are achieved, and the production efficiency is improved.

The invention relates to a needle valve driving device in a hot runner system, and discloses a needle valve driving device arranged on a hot runner support and an assembling method of the needle valve driving device. The device comprises a material collecting bowl, a driving cavity, a piston disc and a needle valve adjusting piece, and a shell of the driving cavity rotates in a resistance mode relative to the material collecting bowl so as to adjust routing of a driving flow path on a hot runner support and adjust the tightness of a valve needle. By arranging an adjusting hole, a first buckling groove, a limiting ring groove, an axial limiting rod and other structures, stable assembly of the device and adjustability of the lifting position of the valve needle and routing of the driving flow path are ensured. In particular, the problems that the position of the needle valve adjusting piece is difficult to adjust and the needle valve adjusting piece moves and displaces under the rotation characteristic of the driving cavity can be solved through the combination of a first positioning hole, a positioning notch, a plugging piece and a tensioning piece. The structural design of the adjustable needle valve driving device in the hot runner system is optimized, the assembling flexibility and reliability are improved, and meanwhile, the height of the valve needle is conveniently and accurately adjusted, and driving flow path wiring is maintained.

The invention discloses a liquid cooling heat exchanger, a liquid cooling heat exchange assembly and a converter, the liquid cooling converter comprises a heat exchange part, the heat exchange part comprises a first heat exchange module and a second heat exchange module which are arranged side by side front and back, and each module is provided with a plurality of first heat exchange runners and second heat exchange runners which are vertically arranged side by side and are consistent in length; the liquid inlet part is provided with a liquid inlet flow channel protruding and bending upwards and comprises a first liquid inlet section and a second liquid inlet section which are communicated, a liquid inlet is formed in the bottom of the first liquid inlet section and communicated with the first heat exchange end of each first heat exchange flow channel, and the second liquid inlet section is communicated with the first heat exchange end of each second heat exchange flow channel; the bent part of the liquid inlet runner is not lower than the first heat exchange end of the highest heat exchange runner, and the liquid inlet is not higher than the first heat exchange end of the lowest first heat exchange runner; the liquid outlet part is provided with a liquid outlet flow channel which protrudes and bends upwards and comprises a first liquid outlet section and a second liquid outlet section which are communicated, the first liquid outlet section is communicated with the second heat exchange end of each first heat exchange flow channel, and the bottom of the second liquid outlet section is provided with a liquid outlet which is communicated with the second heat exchange end of each second heat exchange flow channel; the bent position of the liquid outlet flow channel is not lower than the second heat exchange end of the highest heat exchange flow channel, and the liquid outlet is not higher than the second heat exchange end of the lowest second heat exchange flow channel. The liquid cooling heat exchanger can keep good heat dissipation performance and operation stability under the gas-containing working condition.

The invention relates to a doorsill beam assembly integrated with a heat exchange runner and a vehicle, and belongs to the technical field of vehicle cooling systems.The doorsill beam assembly comprises a doorsill beam body, and an exhaust channel and a cooling liquid channel are arranged in the doorsill beam body; the cooling liquid channel comprises a first cooling liquid channel adjacent to the exhaust channel and a second cooling liquid channel far away from the exhaust channel; the flow path switching device is arranged at the end part of the doorsill beam body, and the flow path switching device is configured to connect the first cooling liquid channel or the second cooling liquid channel into the cooling liquid loop in a switchable manner or isolate the first cooling liquid channel or the second cooling liquid channel from the cooling liquid loop; and the heat exchange efficiency between gas and liquid in the doorsill beam body is adjusted by selecting the position of the channel through which the cooling liquid flows. According to the heat requirement of the load, liquid is selected to flow through the cooling liquid channel adjacent to the exhaust channel or the cooling liquid channel away from the exhaust channel, the heat exchange efficiency can be adjusted, and the heat using requirements of different working conditions are met.

A sliding block latent type pouring structure of an injection mold comprises a mold cavity compound plate and a mold core compound plate, a hot runner base plate and a mold cavity plate are arranged below the mold cavity compound plate, a mold foot, a lower ejector plate, an upper ejector plate and a mold core plate are arranged on the mold core compound plate, an excess material ejector pin and a product ejector pin are connected to the upper ejector plate, and a mold cavity is formed between the mold core plate and the mold cavity plate. A splitter plate is arranged in the hot runner base plate, a hot nozzle is connected below the splitter plate, a sliding block is arranged on the core plate, a hidden runner sprue is arranged on the upper surface of the sliding block, the hot nozzle penetrates through the cavity plate to be communicated with the hidden runner sprue, the hidden runner sprue is communicated with the mold cavity, a receding groove is formed in the core plate located below the sliding block, and an elastic needle insert is arranged on the bottom face of the sliding block. A spring and a pouring gate elastic needle are arranged in the elastic needle insert, the pouring gate elastic needle is matched with the hidden runner pouring gate, an ejector pin insert is arranged on the bottom surface of the core plate, ejection receding holes are formed in the ejector pin insert and the corresponding core plate, the excess material ejector pin is matched with the ejection receding holes, and the sliding block is driven by an outer sliding structure to slide outwards.

The utility model relates to a melting assembly, a nozzle and a 3D printer, the heating efficiency of consumables can be improved, the melting assembly comprises a heating piece, the heating piece is provided with a first heating runner and a second heating runner, the first heating runner is located on the outer side of the second heating runner, the second heating runner comprises a conical cavity with the inner diameter gradually reduced, and the conical cavity is located in the nozzle. A channel area is formed in the cavity wall of the conical cavity, and the second heating flow channel communicates with the first heating flow channel through the channel area.

The present invention discloses an anti-condensation hot runner injection mold, comprising a swirl tube, a heating ring seat and a flow-aiding tube. A swirl channel and a filling port are provided inside the swirl tube, and the liquid flow is guided by a rotating moving guide bucket to ensure that the molten plastic is evenly heated during the flow process and to prevent the occurrence of condensation. A heating coil is provided in the heating ring seat, and the temperature is controlled by a constant temperature control module to ensure the temperature stability of the hot runner. The flow-aiding tube further heats the liquid flow through a plurality of axially arranged electric heating rings, thereby improving the temperature uniformity of the liquid flow and avoiding local condensation. By adopting a precise temperature control system, innovative flow control technology and hot runner design, the structural design of the swirl channel and the moving guide bucket of the present invention increases the flow efficiency of the liquid flow, and through the diversion and confluence mechanism of the Tesla valve structure, the flow performance of the liquid flow is improved, the molding efficiency is effectively improved, the waste is reduced, and the energy consumption in the injection molding process is optimized.

The utility model belongs to the technical field of injection molds, and discloses a valve needle, a hot runner system and an injection mold, the valve needle comprises an outer valve needle and an inner valve needle, the lower end of the outer valve needle is provided with a first discharge port, and the inner valve needle is slidably arranged in the outer valve needle along the vertical direction to close or open the first discharge port; the outer valve needle comprises a discharging part, a first material sealing part and a first material conveying part which are sequentially communicated from top to bottom, a discharging gap is formed between the upper portion of the inner valve needle and the discharging part, the upper portion of the inner valve needle can be in sealing fit with the first material sealing part, a first material supply runner is formed between the lower portion of the inner valve needle and the outer valve needle, and a feeding hole is formed in the first material conveying part; the first feeding runner is communicated with the feeding hole; a discharging groove is formed in the inner wall of the discharging part in the circumferential direction of the discharging part, a through discharging hole is formed in the side, away from the discharging gap, of the discharging groove and communicates with the discharging gap through the discharging groove, and in the relative movement process of the inner valve needle and the outer valve needle, waste is gathered into the discharging groove and automatically discharged through the discharging hole.

The invention discloses a thin-wall acoustic part injection molding device based on a hot runner, and belongs to the technical field of injection molds. Comprising an injection mold, a fixed mold mechanism, a discharging mechanism and a runner assembly, linkage is formed between a hot runner system of the runner assembly and inclined structures of an injection mold, a fixed mold mechanism and a discharging mechanism, on-off injection molding heads achieve on-demand on-off of molten materials, cold material residues are avoided, a spherical structure in the middle of a flow guide pipe head optimizes a molten material flowing path, a driving part accurately controls a ball core valve head to rotate, it is ensured that on-off of the molten materials is switched in time, and the service life of the molten materials is prolonged. The melt entering the cavity is always in a proper temperature state; and meanwhile, the inclined structure assists the melt in flowing in the inclined direction under the action of gravity, the filling resistance of the tail end of the thin-wall cavity is greatly reduced, it is guaranteed that the melt is rapidly and evenly filled in the cavity, the part is guided to directionally slide down after demolding, follow-up collection is facilitated, and comprehensive optimization of the filling quality, the production efficiency and the energy consumption cost is achieved.

The invention relates to the technical field of commercial spaceflight, in particular to a self-repairing liquid metal heat pipe for commercial spaceflight, which comprises a polyether-ether-ketone composite pipe, gallium bismuth zinc liquid gold, a micro-nano repairing film, a main hot runner, a pressure detector, a standby hot runner and an emergency plugging valve, and the main hot runner is an axial through channel in the polyether-ether-ketone composite pipe, and the standby hot runners are annularly and circumferentially arrayed along the inner wall of the main hot runner. Compared with heat conduction in the prior art, medium leakage is stopped through cooperative plugging in a damaged scene, so that the heat conduction efficiency is improved, and the service life of the heat exchanger is prolonged. And meanwhile, the detector is in signal linkage with the plugging valve, a heat transfer loop is rapidly switched in the case of serious damage, the continuous and stable thermal control function is achieved, and therefore the on-orbit operation life of a spacecraft is further prolonged.

The invention relates to a chair armrest side plate injection mold hot runner glue feeding control method and a mold thereof, and relates to the technical field of injection molds, and the method comprises the following steps: in response to a mold closing completion signal, collecting product information, cavity information and a glue feeding position; according to the cavity information, determining a flow velocity threshold value, a glue feeding time length and a glue feeding component corresponding to a glue feeding position; determining the glue inlet flow rate by combining product information, glue inlet component and glue inlet duration; defining a glue inlet position corresponding to the glue inlet flow velocity greater than the flow velocity threshold as a standard-exceeding position, and defining a glue inlet position adjacent to the standard-exceeding position as an adjacent position; obtaining the adjacent relation of the standard exceeding positions; the glue inlet flow velocity is corrected based on the adjacent relation; and the execution unit is controlled to operate in combination with the corrected glue inlet flow speed and the corrected glue inlet duration. The method has the effect of avoiding the quality defects of obvious weld marks, local sink marks and the like of products.

The invention discloses a micro-channel plate cooler for a Stirling engine and a cooling method, and the micro-channel plate cooler for the Stirling engine comprises a cooling shell and a heat exchange core body; the whole heat exchange core body is of an annular columnar structure and is formed by stacking a plurality of gas guide plates and a plurality of heat dissipation plates and then conducting vacuum diffusion welding. Hot fluid enters the hot runner of the air guide plate through the flow guide groove, and cold fluid enters the cold runner of the heat dissipation plate through the water inlet; the hot fluid and the cold fluid exchange heat in the plurality of air guide plates and the plurality of heat dissipation plates; and the hot fluid is discharged from the heat exchange core body through the second airflow groove. According to the micro-channel plate type Stirling engine cooler, the design concept of the micro-channel plate type Stirling engine cooler is adopted, the air guide plates and the heat dissipation plates in the heat exchange core are alternately stacked, the heat exchange area of unit volume can be remarkably increased, the compactness of the cooler structure can be improved, the heat exchange power is improved, and the heat exchange efficiency is improved. And a technical method is provided for stable operation of a next-generation megawatt underwater platform efficient Stirling cycle power system.

The invention relates to the technical field of draining basket shell preparation, in particular to a multifunctional draining basket shell forming preparation process which comprises the following steps: (1) raw material pretreatment: selecting a PET (polyethylene terephthalate) raw material, and drying the PET raw material by a dryer for 6 hours; (2) melting treatment: adding the PET raw material treated in the step (1) into an injection molding machine, and uniformly melting the PET material by controlling the heating temperature of a screw rod; and (3) injection molding: injecting the molten material obtained in the step (2) into a mold, controlling the mold temperature of a hot runner to be 120 DEG C, and adopting a centrosymmetric pouring gate. The invention aims to solve the problems that when the draining basket is produced, residual moisture which is not removed can be quickly vaporized in the heating link of draining basket shell molding, gas generated by vaporization cannot be discharged in time, and the production cost is low. And obvious bubbles, crazes and other defects can be formed in the product or on the surface of the product.

A hot runner injection nozzle system for use in co-injection molding with a built-in obturator valve (7) in a nozzle tip assembly (16) attached to a nozzle body (1) and permits several different directions of gating. It allows for independent flow of each melt stream having their confluence at the very last possible position avoiding mutual contamination with the built-in obturator (7). The nozzle tip assembly comprises several channels providing for the flow of multiple polymeric melt streams and an obturator that serves as a check valve. Selective flow of each stream is fully controlled by individual injection units at the source providing the feed for each melt stream. The invention allows for simple fabrication, maintenance, reduces mutual contamination and allows for a more compact hot runner manifold and tool design. It allows for an optional needle-valve when the product requires a better injection point finish.

An injection molding system is disclosed. The injection molding system includes: a mold; a hot runner including: a manifold; one or more injection nozzles coupled to the manifold; a plurality of heaters in thermal contact with the manifold and the one or more injection nozzles, the heaters being arranged into one or more defined heating zones within the hot runner; and at least one temperature sensor associated with each heating zone, and a system controller coupled to the plurality of heaters, the system controller being configured to: for each heating zone: determine a setpoint temperature associated with the heating zone; obtain, via a temperature sensor, measurement of a current local temperature of the heating zone; determine a control gain value associated with the heating zone; and compute a predicted heating time for the heating zone based on the setpoint temperature, the current local temperature, and the control gain value, determine a heating schedule for the hot runner based on the predicted heating times for the heating zones; and operate the plurality of heaters in accordance with the heating schedule.

A portable information handling system housing portion is manufactured by a process that injects a magnesium aluminum alloy (Mg—Al) from a hot runner having plural outtakes into a mold having a spree at each of the plural outlets. In one example embodiment a housing lid portion is injection molded at a midpoint on opposing sides of a longest side of a rectangular shape. In another example embodiment a housing cover portion is inject molded from six sprues placed around a perimeter of a keyboard location having openings through which keys of the keyboard extend.

The utility model belongs to the technical field of splicing type hot runner assembly, and particularly relates to a splicing type hot runner assembly tool which comprises a machining table. A rotating mechanism is arranged on the top side of the machining table, a fixing mechanism is arranged on the top side of the rotating mechanism, an adjusting mechanism is arranged on the inner side of the machining table, the rotating mechanism comprises a moving table, a rotating table is rotationally installed on the top side of the moving table, positioning holes are symmetrically formed in the top side of the moving table, and a sliding groove is formed in the bottom side of the rotating table. First springs are fixedly connected between the clamping blocks and one ends of the inner sides of the sliding grooves, sliding rods are slidably inserted into the inner sides of the fixing plates in a penetrating mode, second springs are fixed between the clamping plates and the fixing plates, the rotating table is pushed to rotate around the center of the moving table, and when the clamping blocks move to the top sides of the positioning holes, the first springs push the clamping blocks to be buckled to the inner sides of the positioning holes. And at the moment, the other side of the splicing type hot runner can be assembled, and the problem that an existing assembling tool is low in assembling efficiency is solved.

This invention discloses a hot runner system and a stacked mold. The hot runner system includes a first hot runner assembly and a second hot runner assembly. The first hot runner assembly is disposed in the fixed mold, and its runner is connected to the gate of the second cavity. The second hot runner assembly is disposed in the intermediate mold, and its runner is connected to the gate of the first cavity. When the moving mold, intermediate mold, and fixed mold of the stacked mold are closed, the runners of the first and second hot runner assemblies are connected to form a continuous runner structure, and the molten injection material enters the runner of the second hot runner assembly through the runner of the first hot runner assembly. This invention, by optimizing the arrangement and feeding path of the hot runner system, maintains the high output advantage of the stacked mold while effectively improving the balance, stability, and reliability of the injection molding process.

The present application relates to an injection molding machine and a hot runner adapter assembly thereof, wherein a first adapter is used to be installed on a first mold, and the first adapter is provided with a first docking portion and a first hot runner running through the first docking portion. A nozzle sleeve is connected to the first adapter and communicated with the first hot runner, and the nozzle sleeve is used to connect with the nozzle of the injection seat. A second adapter is used to be installed on a second mold, and the second adapter is provided with a second docking portion that docks with the first docking portion and a second hot runner running through the second docking portion, and the second hot runner is used to communicate with the cavity of the mold body. When the second docking portion is docked with the first docking portion, the first hot runner is connected with the second hot runner. During the mold closing and opening process, there is no need to move the injection seat forward and backward as in the related art. The injection seat can always be in a stationary state, and the nozzle remains docked and connected with the nozzle sleeve on the first adapter, thereby simplifying the equipment operation, saving the production cycle, improving production efficiency, and avoiding material waste.

The mold with a multi-point support structure of the present invention includes a hot runner plate and a panel, the hot runner plate includes a mating surface that cooperates with the bottom of the panel, and a cavity recessed from the mating surface and used to accommodate the hot runner system, the cavity is provided with a plurality of raised platforms, and a support structure for supporting between the plurality of platforms and the bottom of the panel. The present invention provides a mold with a multi-point support structure, the hot runner plate is provided with a cavity for accommodating the hot runner system, and the cavity is provided with a plurality of platforms of different heights, the support structure is used to support between the plurality of platforms and the panel, and is used to improve the strength of the hot runner plate at the position corresponding to the support structure. This avoids the occurrence of stress concentration and insufficient strength of the hot runner plate when the thickness of the hot runner plate is different due to the provision of the cavity.

The utility model relates to the technical field of hot runner color changing nozzles, in particular to a hot runner color changing nozzle convenient to quickly disassemble and assemble, which comprises a mounting disc, a nozzle assembly is arranged on the side surface of the mounting disc, a flow guide assembly is arranged at the top of the mounting disc, and a mounting ring, a nozzle body, a sealing clamping groove, a sealing strip, a fixing rod and a mounting through hole are matched for use. The mounting ring and the nozzle body are connected in an inserted mode through the fixing rod, so that the nozzle body is more convenient to mount and dismount, the sealing strip is embedded into the sealing clamping groove, leakage of a hot melting material is effectively prevented, meanwhile, the situation that the top of the nozzle body is loosened or insufficient in sealing in the using process is avoided, the mounting through hole communicates with the flow dividing pipe, and the sealing effect is good. And the adjusting rod can be driven to rotate by rotating the adjusting knob, then opening and closing of the ball valve body are controlled, accurate adjustment of the flow of the hot melting material in the flow dividing pipe is achieved, and the color changing efficiency and the injection precision of the color changing nozzle are effectively improved.

The invention belongs to the technical field of hot runner systems, and relates to a heater connecting assembly of a hot runner system and a heater electric connecting system. Comprising an electric connecting piece made of metal materials, the electric connecting piece comprises a first connecting terminal and a second connecting terminal, the first connecting terminal is used for being connected with a cable, the second connecting terminal is used for being connected with a heater pin, and an included angle alpha is formed between the axis of the first connecting terminal and the axis of the second connecting terminal. Alpha is larger than 0 degree and smaller than 180 degrees, so that the installation direction of the cable and the installation direction of the heater pin of the second connecting terminal are located in the angle interval, and the electric connecting piece is provided with a high-temperature-resistant insulating shell which is at least partially covered. Compared with the prior art, the structure has the advantages that the structure is compact, the spatial layout and the anti-interference capability are optimized, and key support is provided for designing a more compact hot runner system.

The utility model relates to the technical field of hot runner molds, in particular to an ejection mechanism for a hot runner mold, which mainly comprises a supporting bottom plate, a lower mold block arranged at the top end of the supporting bottom plate, an upper mold block arranged at the top end of the lower mold block, a connecting top plate arranged at the top end of the upper mold block, and an ejection adjusting component arranged at the top end of the lower mold block. The ejection adjusting assembly comprises a telescopic ejector rod, an elastic connecting piece is arranged on the inner side of the telescopic ejector rod, an adjusting sliding block is arranged at the top end of the telescopic ejector rod, and a fool-proof ejector block is arranged on the inner side of the adjusting sliding block. According to the ejection mechanism for the hot runner mold, the lower mold block and the upper mold block are separated through movement of the telescopic ejection rod, buffering connection is carried out through the elastic connecting piece in the moving process, the protection performance is improved, the adjusting sliding block and the positioning block on the inner side are clamped and positioned through the fool-proof ejection block, and the safety is improved. The supporting pressure of the telescopic ejector rod can be shared in the using process, abrasion of the telescopic ejector rod is reduced, and the using efficiency of the mold is ensured.

A medical cleaning ball forming injection mold comprises a cavity mold plate and a core mold plate, a hot runner system is arranged on the cavity mold plate, an upper cavity insert is arranged in the cavity mold plate, a lower cavity insert is arranged in the core mold plate, the upper cavity insert is matched with the lower cavity insert, a cleaning ball cavity surface is arranged in the upper cavity insert and the lower cavity insert, and a cleaning ball is arranged in the cleaning ball cavity surface. A mold core fixing plate is arranged below the mold core template, two mold feet are arranged below the mold core fixing plate, a mold core compound plate is arranged below the two mold feet, an upper ejection plate and a lower ejection plate are arranged between the two mold feet, ejection rods are arranged on the upper ejection plate and the lower ejection plate, and cleaning spherical cores are arranged at the heads of the ejection rods; a cleaning ball core penetrates through the core fixing plate and extends into the upper cavity insert and the lower cavity insert, a cleaning ball mold cavity is formed between the cleaning ball core and the cleaning ball mold cavity, the hot runner system is communicated with the cleaning ball mold cavity, an air channel is arranged in the ejector rod, an air blowing hole is formed in the cleaning ball core, an air inlet hole is formed in the lower ejector plate, and the air blowing hole, the air channel and the air inlet hole are communicated with one another. The air inlet is externally connected with an air source.

The utility model relates to the technical field of automobile component roller dies, and discloses a parting surface structure of an automobile component roller die. Which comprises a movable mold bottom plate, square iron, a movable mold, a fixed mold, a hot runner plate and a fixed mold bottom plate, and is characterized in that the square iron is fixedly connected to the upper surface of the movable mold bottom plate, the movable mold is fixedly connected to the upper surface of the square iron, the fixed mold is arranged above the movable mold, and the hot runner plate is fixedly connected to the upper surface of the fixed mold; and the fixed mold bottom plate is fixedly connected to the upper surface of the hot runner plate. The sliding rod is pushed to extend to the position, below the inserting opening, of the movable mold, then the inserting plate is inserted into the inserting opening and extends to the position, inside the cavity, of the movable mold, the rod wall of the sliding rod extends to the position, inside the limiting inserting hole, of the inserting plate through the opening, in the bottom, of the inserting plate, and then the sliding rod is loosened to be reset. And the limiting cylinder can be inserted into the position, located in the limiting insertion hole, of the insertion plate, and the insertion plate can be installed.