CN114274460B

CN114274460B - Injection molding system and control method thereof

Info

Publication number: CN114274460B
Application number: CN202111600758.5A
Authority: CN
Inventors: 李著勋
Original assignee: Zhejiang Zhuosheng Medical Technology Co ltd
Current assignee: Zhejiang Zhuosheng Medical Technology Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2023-12-19
Anticipated expiration: 2041-12-24
Also published as: CN114274460A

Abstract

The application discloses injection molding system, including the frame, still include: the feeding device is arranged on the frame and is used for feeding the molding material; the melting device is arranged on the frame and connected with the feeding device and is used for heating the molding material into a molten state to finish injection preparation work; the injection device is used for injecting the molten material from the melting device and comprises a supporting frame, a heating cylinder, a screw rod arranged in the heating cylinder and a rotating mechanism for driving the screw rod to rotate, and one end of the screw rod is rotatably fixed on the supporting block; the clamping die device is used for processing and forming the injected molten material and comprises a frame body and a clamping die mechanism arranged in the frame body; the cooling device is arranged on the clamping die device and used for rapidly cooling the molten material in the clamping die device.

Description

Injection molding system and control method thereof

Technical Field

The invention belongs to the technical field of injection molding systems, and particularly relates to an injection molding system and a control method thereof.

Background

Injection molding is a molding method using a mold, in which a material such as synthetic resin (plastic) is heated and melted, and the material is injected into the mold and then cooled to be molded into a target shape; by injection molding, various types of parts including complex shapes can be produced continuously and rapidly in large quantities, and therefore, the injection molding is widely used for products in various fields including daily necessities.

In the case of processing by an injection molding machine, a pellet (granular) resin is first added to a hopper as a material inlet. The material pellets are heated to a liquid state in the cylinder to complete the injection preparation process. Subsequently, the material injected from the injection nozzle of the injection part is injected into the molding part through a pipe called an injection port inside the mold, and then flows through a further branched runner. After the material cools and solidifies, the mold is opened, and the molded product is discharged to the outside. In the final finishing process, the injection port and runner will be cut and the molded part completed.

However, in the use process, the injection molding machine has a plurality of problems: 1. the temperature and gradient of heating cannot be accurately controlled in the process of heating the material, so that the heating is easy to be carried out for a plurality of times, and the material is easy to deteriorate; 2. in the process of cooling materials, the existing injection molding machine has poor cooling effect and cannot be rapidly cooled, so that the processing time is long, and the overall production and processing efficiency is influenced; 3. because the diameter of the discharge hole below the hopper is reduced, the phenomenon of blockage can be generated in the material discharging process, and because the danger can be generated in the process of operating manual dredging, the inside of the hopper can not be dredged manually in the working process of the machine.

The injection molding machine disclosed in CN101394984B has an injection device including a heating cylinder to which a molding material is supplied, and a screw driven in the heating cylinder to meter the molding material. The plurality of heaters are arranged in an axial direction of the heating cylinder and heat each portion of the heating cylinder to a predetermined set temperature, respectively. The cylinder temperature controllers respectively control the set temperatures of the heaters. If a predetermined one of the heater set temperatures is set, the cylinder temperature controller calculates the remaining set temperature based on the molding conditions.

The injection molding machine can properly adjust the temperature profile of a cylinder for heating a molding material such as a resin based on the size of the molding product or the molding cycle time, thereby adjusting the heating degree of the molding material in the cylinder, preventing deterioration of the molding material due to heating, preventing adhesion, and maintaining the resin melted in front of the screw at a certain temperature.

Disclosure of Invention

The present invention is directed to an injection molding system and a control method thereof, which can solve the above-mentioned problems.

An object of the present application is to provide an injection molding system, including the frame, still include: the feeding device is arranged on the frame and is used for feeding the molding material; the melting device is arranged on the frame and connected with the feeding device and is used for heating the molding material into a molten state to finish injection preparation work; the injection device is used for injecting the molten material from the melting device and comprises a supporting frame, a heating cylinder, a screw rod arranged in the heating cylinder and a rotating mechanism for driving the screw rod to rotate, and one end of the screw rod is rotatably fixed on the supporting block; the clamping die device is used for processing and forming the injected molten material and comprises a frame body and a clamping die mechanism arranged in the frame body; the cooling device is arranged on the clamping die device and used for rapidly cooling the molten material in the clamping die device.

The injection molding system comprises a feeding device, a melting device, an injection device, a clamping die device and a cooling device, wherein the feeding device, the melting device, the injection device, the clamping die device and the cooling device are matched, molding materials are added into the feeding device firstly in the injection process, the melting device heats the added molding materials into a molten state, the molding materials in the molten state are injected into the clamping die device through the injection device, and the cooling device is used for rapidly cooling the materials in the molten state, wherein in the process of operating the cooling device, a water pump is started to pump out cooling liquid in a liquid storage tank, the cooling liquid flows in a water inlet pipeline, a plurality of heat dissipation pipelines and a recovery pipeline sequentially after being pumped out, flows through the clamping die machine and a heat exchanger in the flowing process, and finally returns into the liquid storage tank, so that the cooling time is shortened, and the working efficiency is improved.

Further, the cooling device includes: the liquid storage tank is arranged on the frame body, and cooling liquid is stored in the liquid storage tank; the cooling liquid pipeline comprises a water inlet pipeline, a plurality of heat dissipation pipelines and a water return pipeline, the heat dissipation pipelines are arranged in the mold clamping mechanism in parallel, one ends of the heat dissipation pipelines are connected with the water inlet pipeline, the other ends of the heat dissipation pipelines are connected with the water return pipeline, and the water inlet pipeline and the water return pipeline are connected with the liquid storage tank; the heat exchanger is arranged on the water return pipeline and used for cooling high-temperature cooling liquid in the water return pipeline; the first fan is arranged on one side of the heat exchanger and used for cooling the heat exchanger; the water pump is arranged on the water inlet pipeline and plays a role in driving the cooling liquid, so that the cooling liquid flows in the liquid storage tank, the cooling liquid pipeline and the heat exchanger; the steering pipeline is arranged between the water inlet pipeline and the water return pipeline, an electronic valve is arranged between the steering pipeline and the water pump, and the electronic valve is positioned at the junction of the steering pipeline and the water inlet pipeline; the pipeline heat dissipation device is arranged on the water return pipeline and used for cooling high-temperature cooling liquid in the water return pipeline, and the pipeline heat dissipation device is arranged on one side of the heat exchanger; the first temperature detection device is arranged on the die clamping mechanism and is used for detecting the temperature of the die clamping mechanism; the second temperature detection device is arranged on the cooling liquid pipe and is used for detecting the working temperature of the cooling liquid; the water level detection device is arranged in the liquid storage tank and is used for detecting the water level of the cooling liquid; the warning device can send out different warning sounds according to different warning signals, and the warning sounds comprise primary warning and secondary warning; the control device is connected with the first temperature detection device, the second temperature detection device, the water level detection device, the first fan, the water pump, the electronic valve and the warning device.

Through the cooling device, in the cooling process, the cooling liquid in the liquid storage tank is led into the cooling liquid pipeline through the water pump, the cooling liquid passes through one cooling liquid pipeline and is dispersed through a plurality of cooling pipelines, the die clamping mechanism is cooled, the material in a molten state is cooled quickly, the dispersed high-temperature cooling liquid is gathered into the water return pipeline and returns into the liquid storage tank after sequentially passing through the pipeline cooling device and the heat exchanger, the high-temperature cooling liquid is cooled when passing through the pipeline cooling device and the heat exchanger, the cooled cooling liquid returns into the liquid storage tank to wait for the next cooling or is continuously led into the cooling liquid pipeline to continue the cooling work, in the cooling process, the first fan can cool the heat exchanger to prevent the heat exchanger from overheating, and meanwhile, through the first temperature detection device for detecting the temperature of the clamping mechanism, the second temperature detection device for detecting the working temperature of the cooling liquid, the water level detection device for detecting the water level of the cooling liquid in the liquid storage tank and the warning device, the control device for controlling the devices is also arranged, in the operation process, the control device can control the rotating speed of the water pump and the first fan according to the temperatures fed back by the first temperature detection device and the second temperature detection device, simultaneously can control the warning device to send out corresponding alarms according to the water level of the cooling liquid fed back by the water level detection device, if the water level in the liquid storage tank is lower than the lower limit of the water level, the control device can also control the warning device to send out a first-level alarm and start the electronic valve, so that the cooling liquid in the water inlet pipeline directly enters the water return pipeline through the steering pipeline until the working temperature of the cooling liquid is reduced to be lower than T2, the use safety of the cooling device can be effectively improved, the electronic valve is closed after the working temperature is normal, and cooling the clamping die device continuously.

Further: the pipe heat dissipation device includes: the first box body is arranged on one side of the heat exchanger, the water return pipeline penetrates through the first box body to be connected with the heat exchanger, a plurality of air holes are formed in the top of the first box body, and a first air inlet and a first air outlet are formed in the side wall of the first box body from top to bottom; the second box body is arranged on one side of the first box body, and a second air outlet and a second air inlet are sequentially formed in the side surface of the second box body from top to bottom; the gas storage tank is arranged in the second tank body, the gas storage tank is arranged in a suspended manner, the top of the gas storage tank is provided with a mounting port communicated with the inside of the gas storage tank, the side wall of the gas storage tank is connected with the inner wall of the second tank body through a fixing plate, cooling liquid is stored in the second tank body, the gas storage tank is soaked in the cooling liquid, and the liquid level of the cooling liquid does not exceed the position of the fixing plate; the water changing mechanism comprises a water injection pipe drain pipe and a third temperature detection device, the third temperature detection device is used for detecting the temperature of the cooling liquid in the second box body, the water injection pipe is used for adding the cooling liquid, and the drain pipe is used for discharging the cooling liquid in the second box body; one end of the air outlet pipe is connected with the second air outlet, and the other end of the air outlet pipe is connected with the first air inlet; one end of the air inlet pipe is connected with the side wall of the air storage box, the other end of the air inlet pipe penetrates through the second air inlet to be connected with the first air outlet, and the air inlet pipe and the second air inlet are subjected to waterproof sealing treatment; the connecting pipe is L-shaped, dust collection cotton is arranged in the connecting pipe, one end of the connecting pipe is connected with the air outlet pipe, the other end of the connecting pipe is connected with the mounting port, a pipe sleeve is arranged at the joint of the air outlet pipe and the connecting pipe, one side of the pipe sleeve is fixed on the side wall of the second box body, the pipe sleeve is used for fixing the air inlet pipe and the connecting pipe, and when one end of the connecting pipe is inserted into the pipe sleeve, the other end of the connecting pipe is matched with and communicated with the mounting port; the second fan is arranged in the mounting opening and is used for guiding air in the air storage box into the first box body and guiding the air in the first box body into the air storage to form air circulation; the dust collection device further comprises a replacement device which is arranged in the second box body and used for replacing the connecting pipe when dust collection cotton in the connecting pipe is saturated.

By arranging the pipeline heat dissipation device, the pipeline heat dissipation device and the cooling device are matched for use, so that the high-temperature cooling liquid in the cooling liquid pipeline is cooled, the overall cooling efficiency is improved, the pipeline heat dissipation device is started according to the starting of the cooling device and is not started at ordinary times, and resources can be saved; when the water level in the liquid storage tank is higher than the lower limit of the water level, the control device controls the warning device to send out a second-level alarm, the second-level alarm sends out a rear control device and controls the second fan to start, the second is opened and cools down and dissipates heat to the high-temperature cooling liquid, simultaneously, in the process of cooling and dissipating heat to the cooling liquid pipeline, high-temperature air in the first tank body is pumped into the gas storage tank through the second fan, high-temperature air in the gas storage tank can be influenced by cooling liquid in the second tank body and temperature is reduced, cooled air can be guided back into the first tank body through the second fan, thereby air circulation is formed, the first tank body sucks air from the outside through the air holes, dust and other impurities can be attached to the air in the air, dust and impurities can be intercepted and adsorbed by dust absorbing cotton in the connecting pipe, thereby improving the clean degree of cool air, effectively preventing dust and impurities from being in the first tank body, in addition, a water changing mechanism is further arranged on the second tank body, the water changing mechanism comprises a pipe, a drain pipe and a third temperature detecting device, the third temperature detecting device can be used for detecting the water changing device, and the temperature detecting device can be further opened and cooled down according to the temperature of the second tank body, and the temperature detecting device can be further cooled down when the second water is cooled down.

Further, the replacing device includes: the horizontal moving mechanism is arranged in the second box body and used for moving the connecting pipe in the horizontal direction, the horizontal moving mechanism comprises a first air cylinder, the first air cylinder is arranged on the inner wall of the second box body, a longitudinal first sliding groove is formed in the inner wall of the second box body, a first sliding block which slides up and down is arranged on the first sliding groove and is connected with the first air cylinder, a fixing piece is arranged on an output shaft of the first air cylinder and is connected with the connecting pipe, and the fixing piece is detachably connected with the connecting pipe; the vertical moving mechanism is arranged in the second box body and used for lifting and lowering the horizontal moving mechanism, the vertical moving mechanism comprises a second air cylinder, the second air cylinder is arranged on the fixed plate, and an output shaft of the second air cylinder is connected with the side wall of the first air cylinder; the flap triggering mechanism is arranged in the air outlet pipe and comprises a supporting ring, the supporting ring is obliquely arranged, the upper surface of the supporting ring is hinged with a flap, the supporting ring is also provided with a triggering button, the triggering button is connected with a first air cylinder and a second air cylinder, when air in the air outlet pipe flows, the flap is positioned at an opening device, the non-hinged end of the flap is far away from the triggering button, when no air in the air outlet pipe flows, the flap falls down and is contacted with the triggering button, when the second fan is started, the triggering button is pressed effectively, and when the second fan is closed, the triggering button is pressed ineffectively; when the connecting pipe is blocked due to the fact that dust collection cotton in the connecting pipe is saturated, the turning plate falls down to trigger the trigger button, the horizontal moving mechanism is started at the moment, the first air cylinder drives the connecting pipe to move towards the first sliding block, the vertical moving mechanism is started when the output shaft of the first air cylinder contracts to the limit, the output shaft of the second air cylinder pushes the first air cylinder to move upwards, meanwhile, the top of the second box body is provided with a replacement opening, a sealing plate is hinged to the replacement opening, when the output shaft of the second air cylinder extends out to the limit, a worker opens the sealing plate and replaces the connecting pipe, and when the output shaft of the second air cylinder is ejected out to the limit, the upper surface of the first air cylinder is located below the replacement opening.

Through being equipped with replacement device, can replace the connecting pipe when dust and impurity that dust absorption cotton in the connecting pipe reached the saturation, wherein, when dust absorption cotton and impurity reached the saturation, dust absorption cotton will cause the shutoff to the outlet duct, it does not have the gas circulation in the outlet duct to lead to, at this moment, the trigger button is triggered to the board of turning over, the board of turning over falls down, at this moment, horizontal movement mechanism and vertical movement mechanism start, first cylinder drive connecting pipe to first spout direction remove, the second cylinder drive first cylinder upwards remove along first spout after the horizontal movement mechanism removes, transport the connecting pipe to the replacement mouth below, the closing plate is opened to the staff and the manual replacement connecting pipe, thereby effectively improved replacement efficiency, simultaneously, in replacement process and, only when the second fan is opened, trigger button presses effectively, trigger button presses ineffectively when the second fan is closed, can prevent effectively that trigger button from touching by mistake like this.

Further, the feeding device comprises: the material guide mechanism comprises a hopper and a material pipe connected with the hopper, the hopper is in an inverted cone shape, a plurality of dredging grooves are formed in the material pipe, a plurality of outwards-protruding dredging pipes are arranged on the outer wall of the material pipe, the inner diameter of each dredging pipe is identical to that of each dredging groove, and each dredging groove is connected with each dredging pipe to form a channel; the outer guard ring is arranged on the outer wall of the material pipe and consists of two semi-annular plate bodies which are detachably connected; the conductive column is arranged in the material pipe, an insulating sleeve is sleeved on the outer side of the conductive column, and the conductive column is arranged in the material pipe through a fixing rod; the driving cylinder is arranged outside the outer guard ring, and an output shaft of the driving cylinder penetrates through the outer guard ring and extends into the dredging pipe; the dredging plate is arranged in the dredging groove, the section of the dredging plate is arc-shaped, the outer wall of the dredging plate is connected with the output shaft of the driving cylinder, the driving cylinder drives the dredging plate to slide in the dredging groove, when the driving cylinder is completely ejected out, the inner wall of the dredging plate is flush with the inner wall of the material pipe, a plurality of second sliding grooves are formed in the inner wall of the dredging plate, arc-shaped rods are arranged on each second sliding groove, and the radian of each arc-shaped rod is identical to that of each second sliding groove; the second sliding block is arranged on the second sliding groove, penetrates through the arc-shaped rod and slides on the second sliding groove along the arc-shaped rod, and is a conductive sliding block; the spring is sleeved on the arc-shaped rod, one end of the spring is connected with one end of the second sliding groove, and the other end of the spring is connected with the second sliding block; the dredging rod is arranged on the second sliding block, the dredging rod is made of a conductive material, one end of the dredging rod, which is far away from the sliding block, is sharp, and when the driving cylinder ejects the dredging plate out, the sharp end of the dredging rod pierces the insulation sleeve to be in contact with the conductive column; when the material pipe is blocked, the conductive column is electrified and the driving cylinder is started, the driving cylinder pushes the dredging plate to move on the dredging pipe, the dredging rod on the dredging plate is inserted into blocked forming materials, when the dredging rod is in contact with the conductive column, the spring is electrified and contracted, the second sliding block is driven to move, the second sliding block can drive the dredging rod to move when moving, and the plurality of dredging rods transversely move in an arc shape in the second sliding groove and dredge the blocked forming materials.

Through being equipped with feeding device, can prevent when adding molding material that molding material from leading to the fact the jam to hopper and material pipe, can dredge it when hopper and material pipe are blocked, when the circumstances that produces the jam, the actuating cylinder starts, actuating cylinder is with the pull through board top income, the pull through board drives in the pull through pole inserts molding material, when the pull through pole is when pushing up completely, pull through pole and conductive column contact circular telegram, spring circular telegram shrink, pull through pole moves in the second spout along with second slider and arc pole during spring shrink, thereby carry out the action of similar stirring to molding material, a plurality of pull through poles function simultaneously can dredge molding material, thereby effectively prevent the jam of hopper and material pipe, when actuating cylinder is back, pull through pole and conductive column separation, at this moment, the spring resets, restore pull through pole and second slider to initial position, along with the ejecting and the withdrawal of actuating cylinder, stirring work about will reciprocating, a plurality of pull through poles stir the work and can effectively dredge the molding material that blocks, effectively prevent to block up.

Further, still be equipped with the protection casing on the second spout, the protection casing parcel is outside the spring, just the second slider also is located the protection casing, still be equipped with the notch that supplies the mediation pole to remove on the protection casing, the outer wall of protection casing flushes with the inner wall of mediation board.

Through installing the protection casing on the second spout, can play the guard action to the spring in second spout and the second spout, prevent that molding material from getting into in the second spout and causing the jam to second spout and spring, simultaneously, through being equipped with the notch on the protection casing, can be convenient for dredge the removal of pole, make dredge the removal of pole not influenced by the protection casing, moreover, still be equipped with the brush hair on the notch, the brush hair is used for playing the shutoff effect to the notch, prevent that molding material from getting into from the notch, the brush hair can not block dredge the pole moreover, the comb hair can receive the extrusion to both sides and scatter when dredge the pole removal, brush hair can resume the original state after dredge the pole and pass through.

Further, the injection device further comprises a sliding frame, a screw shaft positioned above the sliding frame and a synchronous motor for driving the screw shaft to rotate, the screw shaft is parallel to the screw, the front end of the screw shaft is connected with the supporting block, the supporting block is in sliding connection with the sliding frame, and when the synchronous motor drives the screw shaft to rotate, the supporting block can move forwards and backwards and drive the screw to move forwards and backwards.

When the injection work is carried out, the synchronous motor drives the screw shaft to rotate, because the screw shaft is parallel to the screw rod, the front end of the screw shaft is connected with the supporting block, the supporting block moves left and right on the sliding frame along with the rotation of the screw shaft, and the sliding frame drives the screw rod to move back and forth when moving, so that the injection work is realized.

Further, the invention also discloses a control method of the injection molding system, which comprises the following steps: 1. the temperature threshold value of the preset die clamping mechanism is T1, the working temperature threshold value of the cooling liquid is T2, the lower limit of the water level of the cooling liquid in the liquid storage tank is preset, and the rotating speed threshold value of the second fan is preset to be F; 2. starting to run, controlling a water pump and a first fan by a control device, detecting the temperature of a die clamping mechanism by a first temperature detection device, if the temperature of the die clamping mechanism is detected to be lower than T1, keeping the rotating speeds of the water pump and the first fan by the control device, if the temperature of the die clamping mechanism is detected to be higher than T1, controlling the water level detection device to start, detecting the water level in a liquid storage tank, controlling the warning device to send out a secondary alarm by the control device, controlling the second fan to start, and controlling the warning device to send out a primary alarm by the control device if the water level in the liquid storage tank is lower than the water level lower limit, and starting an electronic valve to enable cooling liquid in a water inlet pipeline to directly enter a water return pipeline through a steering pipeline; 3. when the operation is started, the second temperature detection device detects the working temperature of the cooling liquid, if the working temperature of the cooling liquid is lower than T2, the control device keeps the rotating speeds of the water pump and the first fan, and if the working temperature of the cooling liquid is higher than T2, the control device controls the warning device to send out a secondary alarm and controls the second fan to start; 4. when the second fan is started, if the rotating speed of the second fan reaches F, the control device controls the warning device to send out a first-level alarm, and the electronic valve is started, so that cooling liquid in the water inlet pipeline directly enters the water return pipeline through the steering pipeline, and if the rotating speed of the second fan is lower than F, the rotating speed of the second fan is increased, and meanwhile, the water injection pipe and the water discharge pipe are started to replace the cooling liquid in the second box body.

The beneficial effects of the invention are as follows:

1. the cooling device is arranged, so that the molten material in the clamping device can be rapidly cooled, the cooling liquid in the liquid storage tank is pumped out by starting the water pump, the cooling liquid flows in the water inlet pipeline, the plurality of heat dissipation pipelines and the recovery pipeline in sequence after being pumped out, the flowing process can pass through the clamping machine and the heat exchanger, and finally returns to the liquid storage tank, and the cooling liquid is used for cooling the high-temperature molten material, so that the forming time is shortened, and the working efficiency is improved;

2. in the cooling device, through being equipped with the first temperature detection device used for detecting the temperature of the clamping mechanism, the second temperature detection device used for detecting the working temperature of the cooling liquid, the water level detection device used for detecting the water level of the cooling liquid in the liquid storage tank and the warning device, the cooling device is also equipped with the control device used for controlling the devices, in the operation process, the control device can control the rotating speed of the water pump and the first fan according to the temperature fed back by the first temperature detection device and the second temperature detection device, meanwhile, the warning device can be controlled to send out corresponding alarms according to the water level of the cooling liquid fed back by the water level detection device, if the water level in the liquid storage tank is lower than the lower limit of the water level, the control device can also control the warning device to send out primary alarms and open the electronic valve, so that the cooling liquid in the water inlet pipeline directly enters the water return pipeline through the steering pipeline until the working temperature of the cooling liquid is reduced below T2, and the use safety of the cooling device can be effectively improved;

3. The pipeline heat dissipation device is arranged, so that the pipeline heat dissipation device can be matched with the cooling device for use, the high-temperature cooling liquid in the cooling liquid pipeline is cooled, the overall cooling efficiency is improved, the pipeline heat dissipation device is started according to the starting of the cooling device, resources can be saved because the pipeline heat dissipation device is not started at ordinary times, meanwhile, in the process of cooling and dissipating heat of the cooling liquid pipeline, high-temperature air in the first box body is pumped into the air storage box through the second fan, the temperature of the high-temperature air in the air storage box can be reduced due to the influence of the cooling liquid in the second box body, cooled air can be led back into the first box body through the second fan, dust and impurities in the cold air can be intercepted and adsorbed by dust-absorbing cotton in the connecting pipe in the process of entering the first box body, the cleaning degree of the cold air is improved, and therefore the dust and impurities are effectively prevented from accumulating in the first box body;

4. through being provided with the replacement device, when dust and impurities absorbed by dust absorbing cotton in the connecting pipe reach saturation, the connecting pipe can be replaced, in the replacement process, when no gas flows in the air outlet pipe due to the saturation of the dust absorbing cotton, the turning plate triggering mechanism is started, the turning plate falls down to trigger the triggering button, at the moment, the horizontal moving mechanism and the vertical moving mechanism are started, the connecting pipe is conveyed to the position below the replacement opening, and workers manually replace the connecting pipe, so that the replacement efficiency is effectively improved;

5. Through being equipped with feeding device, can prevent when adding molding material that molding material from leading to the fact the jam to hopper and material pipe, can dredge it when hopper and material pipe are blocked up, through starting the actuating cylinder, the actuating cylinder will dredge the board jack-in, the dredging board drives in the dredging rod inserts molding material, when the electrically conductive post of dredging rod contact, the action of similar stirring is carried out to molding material to the dredging rod lateral shifting when the spring shrink, a plurality of dredging rods function simultaneously can dredge molding material, thereby effectively prevented the jam of hopper and material pipe.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic diagram of the connection of the control device of the present invention;

FIG. 3 is a schematic view of a heat sink device according to the present invention;

FIG. 4 is an enlarged view of A in FIG. 3;

FIG. 5 is a schematic view of the structure of the charging device of the present invention;

FIG. 6 is a cross-sectional view of the charging device of the present invention;

fig. 7 is a flow chart of the cooling process of the present invention.

The reference numerals in the drawings are: 100. a frame; 200. a charging device; 210. a material guiding mechanism; 211. a hopper; 212. a material pipe; 213. dredging the groove; 214. a dredging pipe; 220. an outer grommet; 221. a plate body; 230. a conductive post; 231. an insulating sleeve; 240. a driving cylinder; 250. a dredging plate; 251. a second chute; 252. a second slider; 253. an arc-shaped rod; 254. a spring; 260. a dredging rod; 270. a protective cover; 271. a notch; 300. a melting device; 400. an ejection device; 410. a support frame; 420. a heating cylinder; 430. a screw; 440. a rotary mechanism is rotated; 450. a support block; 460. a carriage; 470. a screw shaft; 480. a synchronous motor; 500. a clamping device; 510. a frame body; 520. a clamping die mechanism; 600. a cooling device; 601. a liquid storage tank; 602. a heat exchanger; 603. a first fan; 604. a water pump; 620. a coolant pipe; 621. a water inlet pipe; 622. a heat dissipation pipe; 623. a water return pipe; 630. a steering pipe; 631. an electronic valve; 640. a first temperature detection device; 650. a second temperature detecting means; 660. a water level detecting device; 670. a warning device; 680. a control device; 700. a pipe heat sink; 701. an air outlet pipe; 702. an air inlet pipe; 710. a first case; 711. ventilation holes; 712. a first air inlet; 713. a first air outlet; 720. a second case; 721. a second air outlet; 722. a second air inlet; 723. a replacement port; 724. a fixing plate; 730. a gas storage tank; 731. a mounting port; 740. a water changing mechanism; 741. a water injection pipe; 742. a drain pipe; 743. a third temperature detecting device; 750. a connecting pipe; 751. dust collection cotton; 760. a second fan; 800. a replacement device; 810. a horizontal movement mechanism; 811. a first cylinder; 812. a first chute; 813. a fixing member; 814. a first slider; 820. a vertical movement mechanism; 821. a second cylinder; 830. a flap trigger mechanism; 831. a support ring; 832. turning plate; 833. triggering the button.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The injection molding system and the control method thereof provided by the embodiment of the application are described in detail below by means of specific embodiments and application scenes thereof with reference to the accompanying drawings.

Example 1:

as shown in fig. 1, an embodiment of the present application provides an injection molding system, including a frame 100, further including: a feeding device 200 provided on the frame 100 for feeding molding materials; the melting device 300 is arranged on the frame 100 and connected with the feeding device 200, and is used for heating the molding material into a molten state to finish injection preparation work; an injection device 400 for injecting molten material from the melting device 300, wherein the injection device 400 comprises a support frame 410, a heating cylinder 420, a screw 430 arranged in the heating cylinder 420, and a rotation mechanism 440 for driving the screw 430 to rotate, and one end of the screw 430 is rotatably fixed on a support block 450; the clamping die device 500 is used for processing and forming the injected molten material, and the clamping die device 500 comprises a frame body 510 and a clamping die mechanism 520 arranged in the frame body 510; the cooling device 600 is disposed on the mold clamping device 500, and is used for rapidly cooling the molten material in the mold clamping device 500.

In some embodiments of the present application, as shown in fig. 1, an injection molding system is adopted, by matching the feeding device 200, the melting device 300, the injection device 400, the mold clamping device 500 and the cooling device 600, the whole molding process can be completed, in the injection process, molding materials are added into the feeding device 200 first, the melting device 300 heats the added molding materials into a molten state, the molding materials in the molten state are injected into the mold clamping device 500 through the injection device 400, and the materials in the molten state are rapidly cooled through the cooling device 600, wherein in the process of operating the cooling device 600, cooling liquid in the liquid storage tank 601 is pumped out by starting the water pump 604, the cooling liquid flows in the water inlet pipe 621, the plurality of heat dissipation pipes 622 and the recovery pipes sequentially, in the flowing process, the cooling liquid flows back into the liquid storage tank 601 through the mold clamping machine and the heat exchanger 602, and the cooling liquid is performed on the high-temperature molten materials, so that the molding time is shortened, and the working efficiency is improved.

In addition, as shown in fig. 1, the injection device 400 further includes a carriage 460, a screw shaft 470 above the carriage 460, and a synchronous motor 480 for driving the screw shaft 470 to rotate, wherein the screw shaft 470 is parallel to the screw 430, the front end of the screw shaft 470 is connected with a supporting block 450, the supporting block 450 is slidably connected with the carriage 460, and when the synchronous motor 480 drives the rotating screw shaft 470 to rotate, the supporting block 450 can move back and forth and drive the screw 430 to move back and forth.

In this embodiment, when the injection operation is performed, the synchronous motor 480 drives the screw shaft 470 to rotate, because the screw shaft 470 is parallel to the screw 430, and the front end of the screw shaft 470 is connected to the supporting block 450, the supporting block 450 moves left and right on the sliding frame 460 along with the rotation of the screw shaft 470, and the sliding frame 460 drives the screw 430 to move back and forth when moving, thereby realizing the injection operation.

Example 2:

the embodiment of the application provides an injection molding system, which comprises the following technical features in addition to the technical features.

As shown in fig. 1 and 2, the cooling device 600 includes: the liquid storage tank 601 is arranged on the frame body 510, and cooling liquid is stored in the liquid storage tank 601; a cooling liquid pipe 620, wherein the cooling liquid pipe 620 comprises a water inlet pipe 621, a plurality of heat dissipation pipes 622 and a water return pipe 623, the plurality of heat dissipation pipes 622 are arranged in the mold clamping mechanism 520 in parallel, one end of each heat dissipation pipe 622 is connected with the water inlet pipe 621, the other end of each heat dissipation pipe 622 is connected with the water return pipe 623, and the other ends of the water inlet pipe 621 and the water return pipe 623 are connected with the liquid storage tank 601; a heat exchanger 602 disposed on the water return pipe 623 for cooling the high-temperature coolant in the water return pipe 623; a first fan 603 disposed at one side of the heat exchanger 602 for cooling the heat exchanger 602; the water pump 604 is arranged on the water inlet pipeline 621, and the water pump 604 plays a role in driving the cooling liquid to flow in the liquid storage tank 601, the cooling liquid pipeline 620 and the heat exchanger 602; the steering pipeline 630 is arranged between the water inlet pipeline 621 and the water return pipeline 623, an electronic valve 631 is arranged between the steering pipeline 630 and the water pump 604, and the electronic valve 631 is positioned at the junction of the steering pipeline 630 and the water inlet pipe; the pipe heat sink 700 is disposed on the water return pipe 623 for cooling the high temperature coolant in the water return pipe 623, and the pipe heat sink 700 is disposed at one side of the heat exchanger 602; a first temperature detecting device 640, disposed on the mold clamping mechanism 520, for detecting the temperature of the mold clamping mechanism 520; a second temperature detecting device 650 disposed on the coolant pipe 620, for detecting an operating temperature of the coolant; a water level detection device 660 disposed in the liquid storage tank 601 for detecting a water level of the coolant; the warning device 670, the warning device 670 can send out different alarm sounds according to different warning signals, and the alarm sounds comprise a primary alarm and a secondary alarm; the control device 680 is further connected to the first temperature detecting device 640, the second temperature detecting device 650, the water level detecting device 660, the first fan 603, the water pump 604, the electronic valve 631, and the warning device 670.

In the embodiment of the application, by arranging the cooling device 600, during the cooling process, the cooling liquid in the liquid storage tank 601 is led into the cooling liquid pipeline 620 through the water pump 604, the cooling liquid passes through one cooling liquid pipeline 620 and is dispersed through the plurality of cooling pipelines 622, the mold clamping mechanism 520 is cooled, the material in a molten state is accelerated to cool quickly, the dispersed high-temperature cooling liquid is gathered into the water return pipeline 623 and sequentially passes through the pipeline cooling device 700 and the heat exchanger 602 and then returns into the liquid storage tank 601, the high-temperature cooling liquid is cooled when passing through the pipeline cooling device 700 and the heat exchanger 602, the cooled cooling liquid returns into the liquid storage tank 601 to wait for the next cooling or continues to be led into the cooling liquid pipeline 620 for continuing the cooling work, during the cooling process, the first fan 603 can cool the heat exchanger 602 to prevent the heat exchanger 602 from overheating, and meanwhile, by providing the first temperature detecting means 640 for detecting the temperature of the clamping mechanism 520, the second temperature detecting means 650 for detecting the working temperature of the coolant, the water level detecting means 660 for detecting the level of the coolant in the reservoir 601, and the warning means 670, and further providing the control means 680 for controlling the above devices, during operation, the control means 680 can control the rotational speeds of the water pump 604 and the first fan 603 according to the temperatures fed back by the first temperature detecting means 640 and the second temperature detecting means 650, and simultaneously can control the warning means 670 to give out a corresponding alarm according to the level of the coolant fed back by the water level detecting means 660, and if the water level in the reservoir 601 is lower than the lower limit of the water level, the control means 680 can also control the warning means 670 to give out a primary alarm and open the electronic valve 631, so that the coolant in the water inlet pipe directly enters the water return pipe 623 through the steering pipe 630, until the working temperature of the cooling liquid is reduced below T2, the safety of the cooling device 600 can be effectively improved, and when the working temperature is normal, the electronic valve 631 is closed, and the cooling of the clamping device 500 is continued.

Example 3:

As shown in fig. 3, the pipe heat dissipation device 700 includes: the first box body 710 is arranged at one side of the heat exchanger 602, the water return pipeline 623 penetrates through the first box body 710 to be connected with the heat exchanger 602, a plurality of air holes 711 are formed in the top of the first box body 710, and a first air inlet 712 and a first air outlet 713 are formed in the side wall of the first box body 710 from top to bottom; the second box 720 is arranged at one side of the first box 710, and a second air outlet 721 and a second air inlet 722 are sequentially arranged at the side surface of the second box 720 from top to bottom; the gas storage tank 730 is arranged in the second tank body 720, the gas storage tank 730 is arranged in a suspended manner, a mounting opening 731 communicated with the inside of the gas storage tank 730 is arranged at the top of the gas storage tank 730, the side wall of the gas storage tank 730 is connected with the inner wall of the second tank body 720 through a fixing plate 724, cooling liquid is stored in the second tank body 720, the gas storage tank 730 is soaked in the cooling liquid, and the liquid level of the cooling liquid does not exceed the position of the fixing plate 724; the water changing mechanism 740, the water changing mechanism 740 comprises a water injection pipe 741, a drain pipe 742 and a third temperature detecting device 743, the third temperature detecting device 743 is used for detecting the temperature of the cooling liquid in the second box 720, the water injection pipe 741 is used for adding the cooling liquid, and the drain pipe 742 is used for discharging the cooling liquid in the second box 720; the air outlet pipe 701, one end of the air outlet pipe 701 is connected with the second air outlet 721, and the other end of the air outlet pipe 701 is connected with the first air inlet 712; the air inlet pipe 702, one end of the air inlet pipe 702 is connected with the side wall of the air storage box 730, the other end of the air inlet pipe 702 passes through the second air inlet 722 to be connected with the first air outlet 713, and the air inlet pipe 702 and the second air inlet 722 are subjected to waterproof sealing treatment; the connecting pipe 750 is L-shaped, dust collection cotton 751 is arranged in the connecting pipe 750, one end of the connecting pipe 750 is connected with the air outlet pipe 701, the other end of the connecting pipe 750 is connected with the mounting port 731, a pipe sleeve is arranged at the joint of the air outlet pipe 701 and the connecting pipe 750, one side of the pipe sleeve is fixed on the side wall of the second box 720, the pipe sleeve is used for fixing the air inlet pipe 702 and the connecting pipe 750, and when one end of the connecting pipe 750 is inserted into the pipe sleeve, the other end of the connecting pipe 750 is matched and communicated with the mounting port 731; a second fan 760 provided in the installation port 731 for guiding the air in the air tank 730 into the first tank 710 and guiding the air in the first tank 710 into the air storage to form an air circulation; the device further comprises a replacing device 800 disposed in the second box 720 for replacing the connecting tube 750 when the dust absorbing cotton 751 in the connecting tube 750 is saturated.

In the embodiment of the application, by arranging the pipeline heat dissipation device 700, the cooling device 600 of the pipeline heat dissipation device 700 is matched for use, the high-temperature cooling liquid in the cooling liquid pipeline 620 is cooled, the overall cooling efficiency is improved, the pipeline heat dissipation device 700 is started according to the starting of the cooling device 600, and the pipeline heat dissipation device 700 is not started at ordinary times, so that resources can be saved; when the water level in the liquid storage tank 601 is higher than the lower limit of the water level, the control device 680 controls the warning device 670 to send out a secondary alarm, the secondary alarm sends out the rear control device 680 and controls the second fan 760 to start, the second is started and cools and dissipates the high-temperature cooling liquid, meanwhile, in the process of cooling and dissipating the cooling liquid pipe 620, the high-temperature air in the first tank 710 is pumped into the liquid storage tank 730 through the second fan 760, the high-temperature air in the liquid storage tank 730 is affected by the cooling liquid in the second tank 720 and the temperature is reduced, the cooled air is led back into the first tank 710 through the second fan 760, thus forming air circulation, the first tank 710 sucks air from the outside through the air holes 711, dust and other impurities are carried in the air, and the dust and the impurities enter the first tank 710 along with the cold air, dust and impurities in the cold air can be intercepted and adsorbed by the dust absorbing cotton 751 in the connecting pipe 750, so that the clean degree of the cold air is improved, dust and impurities are effectively prevented from accumulating in the first box body 710, in addition, a water changing mechanism 740 is further arranged on the second box body 720, the water changing mechanism 740 comprises a water injection pipe 741, a water drain pipe 742 and a third temperature detecting device 743, the third temperature detecting device 743 is used for detecting the temperature of cooling liquid in the second box body 720, the water injection pipe 741 is used for adding the cooling liquid, the water drain pipe 742 is used for discharging the cooling liquid in the second box body 720, when the third temperature detecting device 743 detects that the temperature of the cooling liquid in the second box body 720 is too high, the cooling liquid in the second box body 720 can be replaced by the water injection pipe 741 and the water drain pipe 742, the water injection pipe 741 and the water drain pipe 742 can be opened and closed according to the rotating speed of the second fan 760, and the heat dissipation effect is further improved.

Example 4:

As shown in fig. 3 and 4, the replacing apparatus 800 includes: the horizontal moving mechanism 810 is arranged in the second box 720 and is used for moving the connecting pipe 750 in the horizontal direction, the horizontal moving mechanism 810 comprises a first air cylinder 811, the first air cylinder 811 is arranged on the inner wall of the second box 720, a longitudinal first sliding groove 812 is formed in the inner wall of the second box 720, a first sliding block 814 sliding up and down is arranged on the first sliding groove 812, the first sliding block 814 is connected with the first air cylinder 811, a fixing piece 813 is arranged on an output shaft of the first air cylinder 811, the fixing piece 813 is connected with the connecting pipe 750, and the fixing piece 813 is detachably connected with the connecting pipe 750; the vertical moving mechanism 820 is disposed in the second box 720 and is used for lifting and lowering the horizontal moving mechanism 810, the vertical moving mechanism 820 comprises a second air cylinder 821, the second air cylinder 821 is disposed on the fixed plate 724, and an output shaft of the second air cylinder 821 is connected with a side wall of the first air cylinder 811; the flap trigger mechanism 830 is arranged in the air outlet pipe 701, the flap trigger mechanism 830 comprises a support ring 831, the support ring 831 is obliquely arranged, a flap 832 is hinged to the upper surface of the support ring 831, a trigger button 833 is further arranged on the support ring 831, the trigger button 833 is connected with the first air cylinder 811 and the second air cylinder 821, when air in the air outlet pipe 701 circulates, the flap 832 is positioned at an opening device, the non-hinged end of the flap 832 is far away from the trigger button 833, when no air in the air outlet pipe 701 circulates, the flap 832 falls down and contacts with the trigger button 833, when the second fan 760 is started, the trigger button 833 is pressed effectively, and when the second fan 760 is closed, the trigger button 833 is pressed invalidily; when the connecting pipe 750 is blocked due to the saturation of dust absorbing cotton 751 in the connecting pipe 750, the turning plate 832 falls down to trigger the trigger button 833, at this time, the horizontal moving mechanism 810 is started, the first cylinder 811 drives the connecting pipe 750 to move towards the first slider 814, when the output shaft of the first cylinder 811 contracts to the limit, the vertical moving mechanism 820 is started, the output shaft of the second cylinder 821 pushes the first cylinder 811 to move upwards, meanwhile, the top of the second box 720 is provided with a replacing port 723, a sealing plate is hinged on the replacing port 723, when the output shaft of the second cylinder 821 extends out to the limit, a worker opens the sealing plate and replaces the connecting pipe 750, and when the output shaft of the second cylinder 821 is ejected out to the limit, the upper surface of the first cylinder 811 is located below the replacing port 723.

In this embodiment of the present application, through being equipped with the replacement device 800, dust and impurity absorbed by dust absorbing cotton 751 in the connecting pipe 750 can be replaced when reaching saturation, wherein, when dust absorbing cotton 751 and impurity reach saturation, dust absorbing cotton 751 will cause the shutoff to outlet duct 701, no gas circulation in the outlet duct 701, at this moment, the trigger mechanism 830 of turning over starts, the trigger button 833 falls down to trigger the button 833, at this moment, horizontal movement mechanism 810 and vertical movement mechanism 820 start, first cylinder 811 drives connecting pipe 750 to first spout 812 orientation removal, the second cylinder 821 drives first cylinder 811 and upwards moves along first spout 812 after horizontal movement mechanism 810 removal is accomplished, transport connecting pipe 750 to the substitution mouth 723 below, the staff opens the closing plate and replaces connecting pipe 750 by hand, thereby effectively improve replacement efficiency, simultaneously, in the replacement process and, only when second fan 760 opens, trigger button 833 presses effectively, when second fan 760 closes, trigger button 833 presses invalidily, so can effectively prevent trigger button 833 from touching by mistake.

Example 5:

As shown in fig. 5 and 6, the charging device 200 includes: the material guiding mechanism 210, the material guiding mechanism 210 comprises a hopper 211 and a material pipe 212 connected with the hopper 211, the hopper 211 is in an inverted cone shape, a plurality of dredging grooves 213 are formed in the material pipe 212, a plurality of outwards-protruding dredging pipes 214 are arranged on the outer wall of the material pipe 212, the inner diameter of each dredging pipe 214 is the same as the inner diameter of each dredging groove 213, and the dredging grooves 213 are connected with the dredging pipes 214 to form a channel; the outer guard ring 220 is arranged on the outer wall of the material pipe 212, the outer guard ring 220 consists of two semi-annular plate bodies 221, and the two plate bodies 221 are detachably connected; the conductive column 230 is arranged in the material pipe 212, an insulating sleeve 231 is sleeved outside the conductive column 230, and the conductive column 230 is arranged in the material pipe 212 through a fixed rod; the driving cylinder 240 is arranged outside the outer guard ring 220, and an output shaft of the driving cylinder 240 penetrates through the outer guard ring 220 and extends into the dredging pipe 214; the dredging plates 250 are arranged in the dredging grooves 213, the sections of the dredging plates 250 are arc-shaped, the outer walls of the dredging plates 250 are connected with the output shafts of the driving cylinders 240, the driving cylinders 240 drive the dredging plates 250 to slide in the dredging grooves 213, when the driving cylinders 240 are completely ejected out, the inner walls of the dredging plates 250 are flush with the inner walls of the material pipes 212, a plurality of second sliding grooves 251 are formed in the inner walls of the dredging plates 250, arc-shaped rods 253 are arranged on each second sliding groove 251, and the radian of each arc-shaped rod 253 is identical to that of each second sliding groove 251; the second sliding block 252 is arranged on the second sliding groove 251, the second sliding block 252 is arranged on the arc-shaped rod 253 in a penetrating mode, the second sliding block 252 slides on the second sliding groove 251 along the arc-shaped rod 253, and the second sliding block 252 is a conductive sliding block; the spring 254 is sleeved on the arc-shaped rod 253, one end of the spring 254 is connected with one end of the second sliding groove 251, and the other end of the spring 254 is connected with the second sliding block 252; the dredging rod 260 is arranged on the second sliding block 252, the dredging rod 260 is made of conductive materials, one end of the dredging rod 260 far away from the sliding block is sharp, and when the dredging plate 250 is ejected out by the driving cylinder 240, the sharp end of the dredging rod 260 pierces the insulating sleeve 231 to be in contact with the conductive column 230; when the material pipe 212 is blocked, the conductive column 230 is electrified and the driving cylinder 240 is started, the driving cylinder 240 pushes the dredging plate 250 to move in the dredging pipe 214, the dredging rod 260 on the dredging plate 250 is inserted into the blocked molding material, when the dredging rod 260 contacts with the conductive column 230, the spring 254 is electrified to shrink and drives the second slide block 252 to move, and when the second slide block 252 moves, the dredging rod 260 is driven to move, and the plurality of dredging rods 260 transversely move in an arc shape in the second slide groove 251 and dredge the blocked molding material.

In this embodiment, through being equipped with feeding device 200, can prevent when adding the shaping material that shaping material from leading to the fact the jam to hopper 211 and material pipe 212, can dredge it when hopper 211 and material pipe 212 are blocked, when the circumstances that produces the jam, actuating cylinder 240 starts, actuating cylinder 240 is with the top of dredging plate 250, dredging plate 250 drives in dredging rod 260 inserts the shaping material, when dredging rod 260 is full in the top, dredging rod 260 is energized with electrically conductive post 230, spring 254 circular telegram shrink, dredging rod 260 moves in second spout 251 along with second slider 252 and curved rod 253 when spring 254 shrink, thereby carry out the action of similar stirring to shaping material, a plurality of dredging rods 260 function simultaneously and can dredge shaping material, thereby effectively prevented the jam of hopper 211 and material pipe 212, when actuating cylinder 240 is back, at this moment, spring 254 resets, dredge rod 260 and second slider 252 restore to the initial position, along with the ejecting and the withdrawal of actuating cylinder 240, will carry out the stirring work about the back and forth, a plurality of stirring rods can dredge the shaping material effectively prevent the jam.

Further, the second sliding groove 251 is further provided with a protective cover 270, the protective cover 270 is wrapped outside the spring 254, the second sliding block 252 is also located in the protective cover 270, the protective cover 270 is further provided with a notch 271 for the dredging rod 260 to move, and the outer wall of the protective cover 270 is flush with the inner wall of the dredging plate 250.

In some embodiments of the present application, the second sliding groove 251 and the spring 254 in the second sliding groove 251 may be protected by installing the protection cover 270 on the second sliding groove 251, preventing the molding material from entering the second sliding groove 251 and blocking the second sliding groove 251 and the spring 254, and meanwhile, by providing the protection cover 270 with the notch 271, the movement of the dredging rod 260 may be facilitated, such that the movement of the dredging rod 260 is not affected by the protection cover 270, and the notch 271 is further provided with bristles for blocking the notch 271, preventing the molding material from entering from the notch 271, and the bristles may not block the dredging rod 260, and may be squeezed to spread out to both sides when the dredging rod 260 moves, and may be restored after the dredging rod 260 passes.

Example 6:

the embodiment of the application provides a control method of an injection molding system, which comprises the following technical characteristics.

As shown in fig. 7, the method comprises the following steps: 1. the temperature threshold value of the preset clamping mechanism 520 is T1, the working temperature threshold value of the cooling liquid is T2, the lower limit of the water level of the cooling liquid in the liquid storage tank 601 is preset, and the rotating speed threshold value of the second fan 760 is preset to be F; 2. starting to operate, the control device 680 controls the water pump 604 and the first fan 603 to start, the first temperature detection device 640 detects the temperature of the clamping mechanism 520, if the temperature of the clamping mechanism 520 is detected to be lower than T1, the control device 680 keeps the rotation speed of the water pump 604 and the first fan 603, if the temperature of the clamping mechanism 520 is detected to be higher than T1, the control device 680 controls the water level detection device 660 to start, the water level in the liquid storage tank 601 is detected to be higher than the lower limit of the water level, the control device 680 controls the warning device 670 to send out a secondary alarm, and controls the second fan 760 to start, if the water level in the liquid storage tank 601 is lower than the lower limit of the water level, the control device 680 controls the warning device 670 to send out a primary alarm, and opens the electronic valve 631 to enable the cooling liquid in the water inlet pipeline 621 to directly enter the water return pipeline 623 through the steering pipeline 630; 3. while starting the operation, the second temperature detecting device 650 detects the operation temperature of the cooling liquid, if the operation temperature of the cooling liquid is lower than T2, the control device 680 maintains the rotation speeds of the water pump 604 and the first fan 603, and if the operation temperature of the cooling liquid is detected to be higher than T2, the control device 680 controls the warning device 670 to issue a secondary alarm and controls the second fan 760 to be started; 4. when the second fan 760 is started, if the rotation speed of the second fan 760 reaches F, the control device 680 controls the warning device 670 to send out a first-level alarm, and opens the electronic valve 631 to enable the cooling liquid in the water inlet pipe 621 to directly enter the water return pipe 623 through the steering pipe 630, and if the rotation speed of the second fan 760 is lower than F, the rotation speed of the fan is increased, and simultaneously, the water injection pipe 741 and the water drain pipe 742 are opened to replace the cooling liquid in the second tank 720.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. An injection molding system comprising a frame (100), characterized in that it further comprises:

a feeding device (200) arranged on the frame (100) and used for feeding molding materials;

the melting device (300) is arranged on the frame (100) and connected with the feeding device (200) and is used for heating the molding material into a molten state to finish injection preparation work;

an injection device (400) for injecting a molten material from the inside of the melting device (300), wherein the injection device (400) comprises a support frame (410), a heating cylinder (420), a screw (430) arranged in the heating cylinder (420) and a rotating mechanism (440) for driving the screw (430) to rotate, and one end of the screw (430) is rotatably fixed on a support block (450);

a clamping die device (500) for processing and forming the injected molten material, wherein the clamping die device (500) comprises a frame body (510) and a clamping die mechanism (520) arranged in the frame body (510);

the device also comprises a cooling device (600) which is arranged on the die clamping device (500) and is used for rapidly cooling the molten material in the die clamping device (500);

the cooling device (600) comprises:

a liquid storage tank (601) arranged on the frame body (510), wherein the liquid storage tank (601) stores cooling liquid;

The cooling liquid pipeline (620), the cooling liquid pipeline (620) comprises a water inlet pipeline (621), a plurality of heat dissipation pipelines (622) and a water return pipeline (623), the heat dissipation pipelines (622) are arranged in the clamping die mechanism (520) in parallel, one ends of the heat dissipation pipelines (622) are connected with the water inlet pipeline (621), the other ends of the heat dissipation pipelines are connected with the water return pipeline (623), and the water inlet pipeline (621) and the water return pipeline (623) are both connected with the liquid storage tank (601);

a heat exchanger (602) provided on the water return pipe (623) for cooling the high-temperature coolant in the water return pipe (623);

the first fan (603) is arranged on one side of the heat exchanger (602) and is used for cooling the heat exchanger (602);

a water pump (604) arranged on the water inlet pipeline (621), wherein the water pump (604) plays a role of driving cooling liquid to flow in the liquid storage tank (601), the cooling liquid pipeline (620) and the heat exchanger (602);

the steering pipeline (630) is arranged between the water inlet pipeline (621) and the water return pipeline (623), an electronic valve (631) is arranged between the steering pipeline (630) and the water pump (604), and the electronic valve (631) is positioned at the junction of the steering pipeline (630) and the water inlet pipeline (621);

a pipe heat sink (700) provided on the water return pipe (623) for cooling the high-temperature coolant in the water return pipe (623), the pipe heat sink (700) being provided on one side of the heat exchanger (602);

A first temperature detection device (640) provided on the die clamping mechanism (520) for detecting the temperature of the die clamping mechanism (520);

the second temperature detection device (650) is arranged on the cooling liquid pipeline (620) and is used for detecting the working temperature of the cooling liquid;

a water level detection device (660) which is arranged in the liquid storage tank (601) and is used for detecting the water level of the cooling liquid;

the warning device (670), the said warning device (670) can send out different alarm sounds according to different warning signals, the alarm sound includes the first-level alarm and second-level alarm;

the device also comprises a control device (680) which is connected with the first temperature detection device (640), the second temperature detection device (650), the water level detection device (660), the first fan (603), the water pump (604), the electronic valve (631) and the warning device (670);

the pipe heat dissipation device (700) includes:

the first box body (710) is arranged on one side of the heat exchanger (602), the water return pipeline (623) penetrates through the first box body (710) to be connected with the heat exchanger (602), a plurality of ventilation holes (711) are formed in the top of the first box body (710), and a first air inlet (712) and a first air outlet (713) are formed in the side wall of the first box body (710) from top to bottom;

The second box body (720) is arranged on one side of the first box body (710), and a second air outlet (721) and a second air inlet (722) are sequentially arranged on the side surface of the second box body (720) from top to bottom;

the gas storage tank (730) is arranged in the second tank body (720), the gas storage tank (730) is arranged in a suspending mode, an installation opening (731) communicated with the inside of the gas storage tank (730) is formed in the top of the gas storage tank (730), the side wall of the gas storage tank (730) is connected with the inner wall of the second tank body (720) through a fixing plate (724), cooling liquid is stored in the second tank body (720), the gas storage tank (730) is soaked in the cooling liquid, and the liquid level of the cooling liquid does not exceed the position of the fixing plate (724);

a water changing mechanism (740), wherein the water changing mechanism (740) comprises a water injection pipe (741), a drain pipe (742) and a third temperature detecting device (743), the third temperature detecting device (743) is used for detecting the temperature of the cooling liquid in the second box body (720), the water injection pipe (741) is used for adding the cooling liquid, and the drain pipe (742) is used for discharging the cooling liquid in the second box body (720);

the air outlet pipe (701), one end of the air outlet pipe (701) is connected with the second air outlet (721), and the other end of the air outlet pipe (701) is connected with the first air inlet (712);

The air inlet pipe (702), one end of the air inlet pipe (702) is connected with the side wall of the air storage box (730), the other end of the air inlet pipe (702) penetrates through the second air inlet (722) to be connected with the first air outlet (713), and the air inlet pipe (702) and the second air inlet (722) are subjected to waterproof sealing treatment;

the connecting pipe (750), connecting pipe (750) are L type, be equipped with dust absorption cotton (751) in connecting pipe (750), the one end of connecting pipe (750) with outlet duct (701) are connected, the other end of connecting pipe (750) with mounting hole (731) are connected, just outlet duct (701) with the junction of connecting pipe (750) is equipped with the pipe box, one side of pipe box is fixed on the lateral wall of second box (720), the pipe box is used for fixing outlet duct (701) and connecting pipe (750), when the one end of connecting pipe (750) inserts in the pipe box, the other end of connecting pipe (750) with mounting hole (731) cooperation and intercommunication;

a second fan (760) provided in the mounting port (731) for introducing air in the air tank (730) into the first tank (710) and for introducing air in the first tank (710) into the air tank (730) to form an air cycle;

wherein, the device also comprises a replacing device (800) which is arranged in the second box body (720) and is used for replacing the connecting pipe (750) when the dust absorption cotton (751) in the connecting pipe (750) is saturated;

The replacement device (800) includes:

the horizontal moving mechanism (810) is arranged in the second box body (720) and is used for moving the connecting pipe (750) in the horizontal direction, the horizontal moving mechanism (810) comprises a first air cylinder (811), the first air cylinder (811) is arranged on the inner wall of the second box body (720), a longitudinal first sliding groove (812) is formed in the inner wall of the second box body (720), the first sliding groove (812) is provided with a first sliding block (814) which slides up and down, the first sliding block (814) is connected with the first air cylinder (811), a fixing piece (813) is arranged on an output shaft of the first air cylinder (811), the fixing piece (813) is connected with the connecting pipe (750), and the fixing piece (813) is detachably connected with the connecting pipe (750);

the vertical moving mechanism (820) is arranged in the second box body (720) and is used for lifting and lowering the horizontal moving mechanism (810), the vertical moving mechanism (820) comprises a second air cylinder (821), the second air cylinder (821) is arranged on the fixed plate (724), and an output shaft of the second air cylinder (821) is connected with the side wall of the first air cylinder (811);

the flap trigger mechanism (830) is arranged in the air outlet pipe (701), the flap trigger mechanism (830) comprises a supporting ring (831), the supporting ring (831) is obliquely arranged, a flap (832) is hinged to the upper surface of the supporting ring (831), a trigger button (833) is further arranged on the supporting ring (831), the trigger button (833) is connected with the first air cylinder (811) and the second air cylinder (821), when air in the air outlet pipe (701) circulates, the flap (832) is arranged on an opening device, the non-hinged end of the flap (832) is far away from the trigger button (833), when no air circulates in the air outlet pipe (701), the flap (832) falls down and contacts with the trigger button (833), and when the second fan (760) is started, the trigger button (833) is pressed effectively, and when the second fan (760) is closed, the trigger button (833) is pressed invalidily.

When the connecting pipe (750) is blocked due to the fact that dust collection cotton (751) in the connecting pipe (750) is saturated, the turnover plate (832) falls down to trigger a trigger button (833), at the moment, the horizontal moving mechanism (810) is started, the first air cylinder (811) drives the connecting pipe (750) to move towards the direction of the first sliding block (814), when an output shaft of the first air cylinder (811) contracts to the limit, the vertical moving mechanism (820) is started, an output shaft of the second air cylinder (821) pushes the first air cylinder (811) to move upwards, meanwhile, a replacement opening (723) is formed in the top of the second box (720), a sealing plate is hinged to the replacement opening (723), when the output shaft of the second air cylinder (821) extends to the limit, a worker opens the sealing plate and replaces the connecting pipe (750), and when the output shaft of the second air cylinder (821) is ejected to the limit, the upper surface of the first air cylinder (811) is located below the replacement opening (723).

2. An injection molding system according to claim 1, wherein: the charging device (200) comprises:

the material guide mechanism (210), the material guide mechanism (210) comprises a hopper (211) and a material pipe (212) connected with the hopper (211), the hopper (211) is in an inverted cone shape, a plurality of dredging grooves (213) are formed in the material pipe (212), a plurality of outwards protruding dredging pipes (214) are arranged on the outer wall of the material pipe (212), the inner diameter of each dredging pipe (214) is the same as the inner diameter of each dredging groove (213), and the dredging grooves (213) are connected with the corresponding dredging pipes (214) to form a channel;

The outer guard ring (220) is arranged on the outer wall of the material pipe (212), the outer guard ring (220) is composed of two semi-annular plate bodies (221), and the two plate bodies (221) are detachably connected;

the conductive column (230) is arranged in the material pipe (212), an insulating sleeve (231) is sleeved on the outer side of the conductive column (230), and the conductive column (230) is arranged in the material pipe (212) through a fixing rod;

the driving cylinder (240) is arranged outside the outer guard ring (220), and an output shaft of the driving cylinder (240) penetrates through the outer guard ring (220) and extends into the dredging pipe (214);

the dredging plates (250) are arranged in the dredging grooves (213), the cross sections of the dredging plates (250) are arc-shaped, the outer walls of the dredging plates (250) are connected with the output shafts of the driving cylinders (240), the driving cylinders (240) drive the dredging plates (250) to slide in the dredging grooves (213), when the driving cylinders (240) are completely ejected out, the inner walls of the dredging plates (250) are flush with the inner walls of the material pipes (212), a plurality of second sliding grooves (251) are formed in the inner walls of the dredging plates (250), arc-shaped rods (253) are arranged on each second sliding groove (251), and the radian of each arc-shaped rod (253) is identical to that of each second sliding groove (251);

the second sliding block (252) is arranged on the second sliding groove (251), the second sliding block (252) is arranged on the arc-shaped rod (253) in a penetrating mode, the second sliding block (252) slides on the second sliding groove (251) along the arc-shaped rod (253), and the second sliding block (252) is a conductive sliding block;

The spring (254) is sleeved on the arc-shaped rod (253), one end of the spring (254) is connected with one end of the second sliding groove (251), and the other end of the spring (254) is connected with the second sliding block (252);

the dredging rod (260) is arranged on the second sliding block (252), the dredging rod (260) is made of a conductive material, one end of the dredging rod (260) far away from the sliding block is sharp, and when the dredging plate (250) is ejected out by the driving cylinder (240), the sharp end of the dredging rod (260) pierces the insulating sleeve (231) to be in contact with the conductive column (230);

when the material pipe (212) is blocked, the conductive column (230) is electrified and the driving cylinder (240) is started, the driving cylinder (240) pushes the dredging plate (250) to move on the dredging pipe (214), the dredging rod (260) on the dredging plate (250) is inserted into blocked molding materials, when the dredging rod (260) is in contact with the conductive column (230), the spring (254) is electrified and contracted, the second sliding block (252) is driven to move, the second sliding block (252) can drive the dredging rod (260) to move when moving, and the plurality of dredging rods (260) transversely move in an arc shape in the second sliding groove (251) and dredge the blocked molding materials.

3. An injection molding system according to claim 2, wherein: the second sliding groove (251) is further provided with a protective cover (270), the protective cover (270) is wrapped outside the spring (254), the second sliding block (252) is also located in the protective cover (270), the protective cover (270) is further provided with a notch (271) for the dredging rod (260) to move, and the outer wall of the protective cover (270) is flush with the inner wall of the dredging plate (250).

4. An injection molding system according to claim 3, wherein: the injection device (400) further comprises a sliding frame (460), a screw shaft (470) arranged above the sliding frame (460) and a synchronous motor (480) for driving the screw shaft (470) to rotate, the screw shaft (470) is parallel to the screw (430), the front end of the screw shaft (470) is connected with the supporting block (450), the supporting block (450) is in sliding connection with the sliding frame (460), and when the synchronous motor (480) drives the screw shaft (470) to rotate, the supporting block (450) can move forwards and backwards and drive the screw (430) to move forwards and backwards.

5. The method of controlling an injection molding system according to claim 4, wherein: the method comprises the following steps:

1. the temperature threshold value of the preset clamping mechanism (520) is T1, the working temperature threshold value of the cooling liquid is T2, the lower limit of the water level of the cooling liquid in the liquid storage tank (601) is preset, and the rotating speed threshold value of the second fan (760) is preset to be F;

2. starting to operate, the control device (680) controls the water pump (604) and the first fan (603) to start, the first temperature detection device (640) detects the temperature of the clamping mechanism (520), if the temperature of the clamping mechanism (520) is detected to be lower than T1, the control device (680) keeps the rotation speed of the water pump (604) and the first fan (603), if the temperature of the clamping mechanism (520) is detected to be higher than T1, the control device (680) controls the water level detection device (660) to detect the water level in the liquid storage tank (601), the water level in the liquid storage tank (601) is higher than the lower limit of the water level, the control device (680) controls the warning device (670) to send out a secondary alarm, and controls the second fan (760) to start, if the water level in the liquid storage tank (601) is lower than the lower limit of the water level, the control device (680) controls the warning device (670) to send out a primary alarm, and opens the electronic valve (631) to enable cooling liquid in the water inlet pipeline (621) to directly enter the water return pipeline (623) through the steering pipeline (630);

3. When the operation is started, the second temperature detection device (650) detects the working temperature of the cooling liquid, if the working temperature of the cooling liquid is lower than T2, the control device (680) keeps the rotation speeds of the water pump (604) and the first fan (603), and if the working temperature of the cooling liquid is higher than T2, the control device (680) controls the warning device (670) to send out a secondary alarm and controls the second fan (760) to start;

4. after the second fan (760) is started, if the rotation speed of the second fan (760) exceeds F, the control device (680) controls the warning device (670) to send out a first-level alarm, and opens the electronic valve (631) to enable the cooling liquid in the water inlet pipeline (621) to directly enter the water return pipeline (623) through the steering pipeline (630), and if the rotation speed of the second fan (760) is lower than F, the rotation speed of the second fan (760) is increased, and meanwhile, the water injection pipe (741) and the water discharge pipe (742) are opened to replace the cooling liquid in the second box (720).