CN105034261A - Moulding process and moulding device of BMC high-precision product - Google Patents
Moulding process and moulding device of BMC high-precision product Download PDFInfo
- Publication number
- CN105034261A CN105034261A CN201510261755.1A CN201510261755A CN105034261A CN 105034261 A CN105034261 A CN 105034261A CN 201510261755 A CN201510261755 A CN 201510261755A CN 105034261 A CN105034261 A CN 105034261A
- Authority
- CN
- China
- Prior art keywords
- mould
- product
- bmc
- plastic parts
- moulding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/02—Deburring or deflashing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/7207—Heating or cooling of the moulded articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76498—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76732—Mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76822—Phase or stage of control
- B29C2945/76862—Holding, dwelling
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a moulding process and a moulding device of a BMC high-precision product. The moulding process includes the steps of die assembly, adjustment of injection bench to forward direction, extrusion injection moulding, pressure maintaining, heat-curing, die opening and pushing-out of an injection moulded product, baking, and trimming treatment. The moulding process and the moulding device have following advantages: (1) the BMC material of the die is directly heated to 180 DEG C through a heating rod in the die, so that an injection moulding semi-product can be rapidly cured to obtain the injection moulded product, wherein the process is free of a process of pre-heating the material in a heating device and performing die-casting moulding in a die cavity, and in the invention, addition and curing can be completed on the same device, thereby simplifying the process; (2) the injection moulded product also is trimmed so that the injection moulded product is high in precision; and (3) the process and the device are high in automatic degree, is reduced in operator intervention, is greatly reduced in labor intensity and is reduced in production cost.
Description
Technical field
The present invention relates to the production technical field of BMC, particularly relate to moulding process and the former thereof of the high-accuracy product of a kind of BMC.
Background technology
The English full name of BMC is bulkmouldingcompound, be glass fiber reinforced unsaturated polyester plastic, and mainly consolidate thermal conductive material by raw material such as unsaturated polyester resin, low shrinkage additive, initator, filler, enhanced short fiber through the mixing one formed of physics.Be applicable to the multiple thermoforming process such as mold pressing, note injection, transmission, goods have that mechanical strength is high, high temperature resistant, any surface finish, the feature such as fire-retardant, excellent machinery, electric property make it gather in automobile, building, electrical equipment, instrument panel lamp industry to have a wide range of applications, if light engine, automobile side deflector, nerf bar, automobile engine noise shielding box, headlight for vehicles reverberation bowl, anti-glare board of expressway, electric equipment insulator, electrically arc-extinguish chamber, commercial machine parts etc. are all the application examples of BMC.
Along with BMC product is widely used in various industry, the production technology of BMC product is also more and more paid attention to.But existing BMC production exists following defect: raw material needs to put into firing equipment as after micro-wave oven carries out preheating, then put into mold cavity and carry out die cast, this operation is relatively loaded down with trivial details; And, hand stock, discharging to be related in existing moulding process, and then cause that hand labor intensity is large, cost is high, production technology is numerous and diverse and production efficiency is low; In addition, existing product is all shaping rear direct use, is in use easy to go wrong, and causes product fraction defective high, cannot reach high-accuracy requirement.
Summary of the invention
For the weak point existed in above-mentioned technology, the invention provides moulding process and the former thereof of the high-accuracy product of a kind of BMC simple to operate, that technique is simple and production efficiency is high.
For achieving the above object, the invention provides the moulding process of the high-accuracy product of a kind of BMC, comprise the following steps:
Step 1, matched moulds: after mould is installed on injection machine, starts to debug injection machine, and the rear mold of mould is advanced under the driving of Power Drive Unit, makes the front mould of mould and rear mold can accurate matched moulds;
Step 2, before penetrating platform: that debugs injection machine penetrates platform forward, and the note mouth of injection machine can accurately be docked with the sprue bushing of mould;
Step 3, extruding injection moulding: under the promotion of hydraulic pump and plunger, extrudes BMC and is expelled in mould;
Step 4, pressurize: after BMC is full of mold cavity, carries out compacting by dwell pressure to the BMC in mold cavity and obtains plastic semi-finished product, making the plastic product produced have accurate shape;
Step 5a, is heating and curing: be heated to 180 DEG C by the heating rod in mould to mould, obtains plastic parts moulding product after making plastic semi-finished product rapid solidification;
Step 6, die sinking also ejects plastic parts moulding product;
Step 7, baking: plastic parts moulding product will be ejected and push in baking box and toast;
Step 8, burr removing process: the plastic parts moulding product toasted are put into burr machine, removes burr on it by the ramming head grain that sandblasts, and obtains high-accuracy plastic parts moulding product.
Wherein, described step 5a, while carrying out being heating and curing, also synchronously carries out step 5b and step 5c, and the concrete steps of described step 5b are: storing, and the BMC in material storing box is compressed into high temperature machine barrel and heated by hydraulic pump; The concrete steps of step 5c are: after penetrating platform, and the note mouth of injection machine is separated with the sprue bushing of mould, and injection machine is penetrated platform and resetted.
Wherein, the concrete steps of described step 6 are:
Step 61, die sinking: the rear mold of mould and the front mould of mould start to retreat under the driving effect of Power Drive Unit, makes mould before and after mould separate;
Step 62, ejects plastic parts moulding product: after the front mould of mould and rear mold die sinking to certain distance, the top rod of injection machine starts to move to mould ejector plate, makes thimble by plastic parts moulding product ejection die;
Step 63, cleaning die chamber: plastic parts moulding product, after mold ejection, clean mold cavity, removes plastic burr residual in mold cavity.
Wherein, also comprise a step 9 after described step 8, the concrete steps of this step 9 are: measurement size: the significant dimensions measuring high-accuracy plastic parts moulding product, determine whether this products formed meets standard-required, and choose standard compliant high-accuracy plastic parts moulding product.
Wherein, also comprise a step 10 after described step 9, the concrete steps of described step 10 are: packaging: the quality of the high-accuracy plastic parts moulding product of manual confirmation standard, and carry out packaging and treat shipment.
Wherein, the concrete steps of described step 7 are:
Step 71, is placed on chassis by neat for the plastic parts moulding product ejected, pushes in baking box after full car;
Step 72, after all pushing baking box, starts the power supply of baking box, then toasts after the setting carrying out drying condition;
Step 73, takes out chassis after baking terminates, and is cooled to normal temperature from baking box.
Wherein, in described step 72, drying condition is: baking temperature is 140 DEG C, and drying time is 60 minutes; And the concrete steps of this step are: after all pushing baking box, start the power supply of baking box and be about 140 DEG C that 15-30 minute temperature reaches setting, carry out baking 60 minutes, baking timing terminates the plastic parts moulding product after taking out baking in latter 15 minutes from baking box and carries out being cooled to normal temperature.
For achieving the above object, the invention provides the former of the high-accuracy product of a kind of BMC, comprise base, be installed in the Power Drive Unit of base side and mould and be installed in the injection machine of base opposite side, plunger, BMC material storing box, hydraulic pump and drive member; The front mould of described mould is fixed, and the rear mold of this mould is connected with the driving of Power Drive Unit, and the sprue bushing of described front mould and the note mouth of injection machine to maintain an equal level in same level and mutually dock, and described injection machine drives with drive member and is connected; Described hydraulic pump is connected with plunger actuation, and this plunger moves up and down in BMC material storing box, and BMC extruding is expelled in injection machine by plunger under the promotion of hydraulic pump; The heating rod that mould is heated and dwell pressure device mold cavity being carried out to pressurize is also installed in this mould;
The rear mold of described mould is advanced under the driving of Power Drive Unit, and the front mould of mould and rear mold can accurate matched moulds; Under the promotion of hydraulic pump and plunger, the BMC extruding in BMC material storing box is expelled to after in injection machine and injects in mold cavity by note mouth and sprue bushing; After BMC is full of mold cavity, by dwell pressure device compacting is carried out to the BMC in mold cavity and obtain plastic semi-finished product; Plastic parts moulding product are formed after 180 DEG C being heated to mould by heating rod.
Wherein, described base is also installed on the temperature control box temperature in mold cavity being carried out to constant temperature, and temperature control box is electrically connected with heating rod by electric wire; Described drive member comprises the drive rod be installed on base, servomotor and electric cabinet, and described electric cabinet is electrically connected with servomotor by electric wire, and described servomotor to be driven with injection machine by drive rod and is connected.
Wherein, this equipment also comprises the baking box toasted plastic parts moulding product, and described baking box comprises baking box main body, electric control part and temperature control portion, controls the baking temperature in baking box main body after described electric control part is electrically connected with temperature control portion.
The invention has the beneficial effects as follows: compared with prior art, the moulding process of the high-accuracy product of BMC provided by the invention and former thereof, this technique simply comprises matched moulds, penetrate platform before, extruding injection moulding, pressurize, be heating and curing, die sinking eject plastic parts moulding product, baking and burr removing process, this PROCESS FOR TREATMENT product out not only has accurate shape, and shaping baking and burr removing process afterwards, make the precision of product higher, yields is better.The present invention has following advantage:
1) directly 180 DEG C are heated to by the BMC of the heating rod in mould to mould, plastic parts moulding product are obtained after making plastic semi-finished product rapid solidification, this technique is without the need to after putting into firing equipment and carrying out preheating, put into mold cavity again and carry out die cast, but add and solidify and can complete on same equipment, simplify operation;
2) after formed product also through burr removing process, make the precision of product high;
3) this Processes and apparatus automaticity is high, decreases the participation of staff, greatly reduces labour intensity and reduces production cost.
Accompanying drawing explanation
Fig. 1 is the process chart of the moulding process of the high-accuracy product of BMC of the present invention;
Fig. 2 is the concrete steps of step S7 in Fig. 1;
Fig. 3 is the structure chart of the former of the high-accuracy product of BMC of the present invention;
Fig. 4 is the structure chart of baking box in the former of the high-accuracy product of BMC of the present invention.
Main element symbol description is as follows:
10, base 11, Power Drive Unit
12, mould 13, injection machine
14, plunger 15, BMC material storing box
16, hydraulic pump 17, drive member
18, heating rod 19, temperature control box
20, baking box 121, sprue bushing
131, mouth 171, drive rod is noted
172, servomotor 173, electric cabinet
201, baking box main body 202, electric control part
203, temperature control portion.
Detailed description of the invention
In order to more clearly state the present invention, below in conjunction with accompanying drawing, the present invention is further described.
Refer to Fig. 1-2, the moulding process of the high-accuracy product of BMC of the present invention, comprises the following steps:
Step S1, matched moulds: after mould is installed on injection machine, starts to debug injection machine, and the rear mold of mould is advanced under the driving of Power Drive Unit, makes the front mould of mould and rear mold can accurate matched moulds;
Step S2, before penetrating platform: that debugs injection machine penetrates platform forward, and the note mouth of injection machine can accurately be docked with the sprue bushing of mould;
Step S3, extruding injection moulding: under the promotion of hydraulic pump and plunger, extrudes BMC and is expelled in mould;
Step S4, pressurize: after BMC is full of mold cavity, carries out compacting by dwell pressure to the BMC in mold cavity and obtains plastic semi-finished product, making the plastic product produced have accurate shape;
Step S5a, is heating and curing: be heated to 180 DEG C by the heating rod in mould to mould, obtains plastic parts moulding product after making plastic semi-finished product rapid solidification; Step S5a, while carrying out being heating and curing, also synchronously carries out step S5b and step S5c, and the concrete steps of step S5b are: storing, and the BMC in material storing box is compressed into high temperature machine barrel and heated by hydraulic pump; The concrete steps of step S5c are: after penetrating platform, and the note mouth of injection machine is separated with the sprue bushing of mould, and injection machine is penetrated platform and resetted; To be heating and curing in this step, storing and note mouth be separated these three actions and synchronously carry out with sprue bushing, substantially increase the speed of this moulding process;
Step S6, die sinking also ejects plastic parts moulding product; Concrete steps are: step S61, die sinking: the rear mold of mould and the front mould of mould start to retreat under the driving effect of Power Drive Unit, and mould before and after mould is separated; Step S62, ejects plastic parts moulding product: after the front mould of mould and rear mold die sinking to certain distance, the top rod of injection machine starts to move to mould ejector plate, makes thimble by plastic parts moulding product ejection die; Step S63, cleaning die chamber: plastic parts moulding product, after mold ejection, clean mold cavity, removes plastic burr residual in mold cavity;
Step S7, baking: plastic parts moulding product will be ejected and push in baking box and toast; Step S71, is placed on chassis by neat for the plastic parts moulding product ejected, pushes in baking box after full car; Step S72, after all pushing baking box, starts the power supply of baking box, then toasts after the setting carrying out drying condition; Step S73, takes out chassis after baking terminates, and is cooled to normal temperature from baking box; In step S72, drying condition is: baking temperature is 140 DEG C, and drying time is 60 minutes; And the concrete steps of this step are: after all pushing baking box, start the power supply of baking box and be about 140 DEG C that 15-30 minute temperature reaches setting, carry out baking 60 minutes, baking timing terminates the plastic parts moulding product after taking out baking in latter 15 minutes from baking box and carries out being cooled to normal temperature;
Step S8, burr removing process: the plastic parts moulding product toasted are put into burr machine, removes burr on it by the ramming head grain that sandblasts, and obtains high-accuracy plastic parts moulding product; The burr removing processing mode of plastic parts moulding product is: adopt projection material from ramming head sandblast the high-speed rotating impeller injection of a machine to the surface, hole of plastic parts moulding product, the position such as recess, by impeller run up by sandblast grain accelerate high-frequency shock is carried out until burr is cleaned to the burr of the burr of the above-mentioned position of products formed, owing to using relatively soft nylon granule hardness lower than plastic parts moulding product itself, so very little to the injury of product surface; And this ramming head sandblasts, a facility has the cleaning ability of high efficiency;
The concrete steps of step S9 are: measurement size: the significant dimensions measuring high-accuracy plastic parts moulding product, determine whether this products formed meets standard-required, and choose standard compliant high-accuracy plastic parts moulding product;
The concrete steps of step S10 are: packaging: the quality of the high-accuracy plastic parts moulding product of manual confirmation standard, and carry out packaging and treat shipment.
The beneficial effect of this moulding process is: this technique simply comprises matched moulds, penetrate platform before, extruding injection moulding, pressurize, be heating and curing, die sinking eject plastic parts moulding product, baking and burr removing process, this PROCESS FOR TREATMENT product out not only has accurate shape, and shaping baking and burr removing process afterwards, make the precision of product higher, yields is better.Specifically there is following advantage:
1) directly 180 DEG C are heated to by the BMC of the heating rod in mould to mould, plastic parts moulding product are obtained after making plastic semi-finished product rapid solidification, this technique is without the need to after putting into firing equipment and carrying out preheating, put into mold cavity again and carry out die cast, but add and solidify and can complete on same equipment, simplify operation;
2) after formed product also through burr removing process, make the precision of product high;
3) this automation technolo degree is high, decreases the participation of staff, greatly reduces labour intensity and reduces production cost.
Please consult Fig. 3 further, the invention provides the former of the high-accuracy product of a kind of BMC, comprise the end, 10, be installed in the Power Drive Unit 11 of base 10 side and mould 12 and be installed in the injection machine 13 of base 10 opposite side, plunger 14, BMC material storing box 15, hydraulic pump 16 and drive member 17; The front mould of mould 12 is fixed, and the rear mold of this mould 12 is connected with the driving of Power Drive Unit 11, and the sprue bushing 121 of front mould and the note mouth 131 of injection machine 13 to maintain an equal level in same level and mutually dock, and injection machine 13 drives with drive member 17 and is connected; Hydraulic pump 16 drives with plunger 14 and is connected, and this plunger 14 moves up and down in BMC material storing box 15, and BMC extruding is expelled in injection machine 13 by plunger 14 under the promotion of hydraulic pump 16; The heating rod 18 that mould 12 is heated and the dwell pressure device (not shown) of mold cavity being carried out to pressurize is also installed in this mould 12;
The rear mold of mould 12 is advanced under the driving of Power Drive Unit 11, and the front mould of mould 12 and rear mold can accurate matched moulds; At hydraulic pump 16 with under the promotion of plunger 14, the BMC extruding in BMC material storing box 15 is expelled to after in injection machine 13 and injects in mold cavity by note mouth 131 and sprue bushing 121; After BMC is full of mold cavity, by dwell pressure device compacting is carried out to the BMC in mold cavity and obtain plastic semi-finished product; Plastic parts moulding product are formed after being heated to 180 DEG C by heating rod 18 pairs of moulds.
In the present embodiment, base 10 is also installed on the temperature control box 19 temperature in mold cavity being carried out to constant temperature, and temperature control box 19 is electrically connected with heating rod 18 by electric wire; Drive member 17 comprises the drive rod 171 be installed on base, servomotor 172 and electric cabinet 173, and electric cabinet 173 is electrically connected with servomotor 172 by electric wire, and servomotor 172 is driven with injection machine 13 by drive rod 171 and is connected.
Please consult Fig. 4 further, this equipment also comprises the baking box 20 toasted plastic parts moulding product, baking box 20 comprises baking box main body 201, electric control part 202 and temperature control portion 203, and electric control part 202 is electrically connected the baking temperature in rear control baking box main body 201 with temperature control portion 203.
This former has following beneficial effect:
1) directly 180 DEG C are heated to by the BMC of the heating rod in mould to mould, plastic parts moulding product are obtained after making plastic semi-finished product rapid solidification, this technique is without the need to after putting into firing equipment and carrying out preheating, put into mold cavity again and carry out die cast, but add and solidify and can complete on same equipment, simplify operation;
2) this automation technolo degree is high, decreases the participation of staff, greatly reduces labour intensity and reduces production cost.
Be only several specific embodiment of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (10)
1. a moulding process for the high-accuracy product of BMC, is characterized in that, comprise the following steps:
Step 1, matched moulds: after mould is installed on injection machine, starts to debug injection machine, and the rear mold of mould is advanced under the driving of Power Drive Unit, makes the front mould of mould and rear mold can accurate matched moulds;
Step 2, before penetrating platform: that debugs injection machine penetrates platform forward, and the note mouth of injection machine can accurately be docked with the sprue bushing of mould;
Step 3, extruding injection moulding: under the promotion of hydraulic pump and plunger, extrudes BMC and is expelled in mould;
Step 4, pressurize: after BMC is full of mold cavity, carries out compacting by dwell pressure to the BMC in mold cavity and obtains plastic semi-finished product, making the plastic product produced have accurate shape;
Step 5a, is heating and curing: be heated to 180 DEG C by the heating rod in mould to mould, obtains plastic parts moulding product after making plastic semi-finished product rapid solidification;
Step 6, die sinking also ejects plastic parts moulding product;
Step 7, baking: plastic parts moulding product will be ejected and push in baking box and toast;
Step 8, burr removing process: the plastic parts moulding product toasted are put into burr machine, removes burr on it by the ramming head grain that sandblasts, and obtains high-accuracy plastic parts moulding product.
2. the moulding process of the high-accuracy product of BMC according to claim 1, it is characterized in that, described step 5a is while carrying out being heating and curing, also synchronously carry out step 5b and step 5c, the concrete steps of described step 5b are: storing, and the BMC in material storing box is compressed into high temperature machine barrel and heated by hydraulic pump; The concrete steps of step 5c are: after penetrating platform, and the note mouth of injection machine is separated with the sprue bushing of mould, and injection machine is penetrated platform and resetted.
3. the moulding process of the high-accuracy product of BMC according to claim 1, is characterized in that, the concrete steps of described step 6 are:
Step 61, die sinking: the rear mold of mould and the front mould of mould start to retreat under the driving effect of Power Drive Unit, makes mould before and after mould separate;
Step 62, ejects plastic parts moulding product: after the front mould of mould and rear mold die sinking to certain distance, the top rod of injection machine starts to move to mould ejector plate, makes thimble by plastic parts moulding product ejection die;
Step 63, cleaning die chamber: plastic parts moulding product, after mold ejection, clean mold cavity, removes plastic burr residual in mold cavity.
4. the moulding process of the high-accuracy product of BMC according to claim 1, it is characterized in that, a step 9 is also comprised after described step 8, the concrete steps of this step 9 are: measurement size: the significant dimensions measuring high-accuracy plastic parts moulding product, determine whether this products formed meets standard-required, and choose standard compliant high-accuracy plastic parts moulding product.
5. the moulding process of the high-accuracy product of BMC according to claim 4, it is characterized in that, also comprise a step 10 after described step 9, the concrete steps of described step 10 are: packaging: the quality of the high-accuracy plastic parts moulding product of manual confirmation standard, and carry out packaging and treat shipment.
6. the moulding process of the high-accuracy product of BMC according to claim 1, is characterized in that, the concrete steps of described step 7 are:
Step 71, is placed on chassis by neat for the plastic parts moulding product ejected, pushes in baking box after full car;
Step 72, after all pushing baking box, starts the power supply of baking box, then toasts after the setting carrying out drying condition;
Step 73, takes out chassis after baking terminates, and is cooled to normal temperature from baking box.
7. the moulding process of the high-accuracy product of BMC according to claim 6, is characterized in that, in described step 72, drying condition is: baking temperature is 140 DEG C, and drying time is 60 minutes; And the concrete steps of this step are: after all pushing baking box, start the power supply of baking box and be about 140 DEG C that 15-30 minute temperature reaches setting, carry out baking 60 minutes, baking timing terminates the plastic parts moulding product after taking out baking in latter 15 minutes from baking box and carries out being cooled to normal temperature.
8. a former for the high-accuracy product of BMC, is characterized in that, comprises base, is installed in the Power Drive Unit of base side and mould and is installed in the injection machine of base opposite side, plunger, BMC material storing box, hydraulic pump and drive member; The front mould of described mould is fixed, and the rear mold of this mould is connected with the driving of Power Drive Unit, and the sprue bushing of described front mould and the note mouth of injection machine to maintain an equal level in same level and mutually dock, and described injection machine drives with drive member and is connected; Described hydraulic pump is connected with plunger actuation, and this plunger moves up and down in BMC material storing box, and BMC extruding is expelled in injection machine by plunger under the promotion of hydraulic pump; The heating rod that mould is heated and dwell pressure device mold cavity being carried out to pressurize is also installed in this mould;
The rear mold of described mould is advanced under the driving of Power Drive Unit, and the front mould of mould and rear mold can accurate matched moulds; Under the promotion of hydraulic pump and plunger, the BMC extruding in BMC material storing box is expelled to after in injection machine and injects in mold cavity by note mouth and sprue bushing; After BMC is full of mold cavity, by dwell pressure device compacting is carried out to the BMC in mold cavity and obtain plastic semi-finished product; Plastic parts moulding product are formed after 180 DEG C being heated to mould by heating rod.
9. the former of the high-accuracy product of BMC according to claim 8, is characterized in that, described base is also installed on the temperature control box temperature in mold cavity being carried out to constant temperature, and temperature control box is electrically connected with heating rod by electric wire; Described drive member comprises the drive rod be installed on base, servomotor and electric cabinet, and described electric cabinet is electrically connected with servomotor by electric wire, and described servomotor to be driven with injection machine by drive rod and is connected.
10. the former of the high-accuracy product of BMC according to claim 8, it is characterized in that, this equipment also comprises the baking box toasted plastic parts moulding product, described baking box comprises baking box main body, electric control part and temperature control portion, controls the baking temperature in baking box main body after described electric control part is electrically connected with temperature control portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261755.1A CN105034261A (en) | 2015-08-29 | 2015-08-29 | Moulding process and moulding device of BMC high-precision product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261755.1A CN105034261A (en) | 2015-08-29 | 2015-08-29 | Moulding process and moulding device of BMC high-precision product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105034261A true CN105034261A (en) | 2015-11-11 |
Family
ID=54441509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510261755.1A Pending CN105034261A (en) | 2015-08-29 | 2015-08-29 | Moulding process and moulding device of BMC high-precision product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105034261A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866383A (en) * | 2019-01-28 | 2019-06-11 | 广东赛普电器制造有限公司 | A kind of composite layer door pedal BMC injection moulding machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962232A (en) * | 2006-11-27 | 2007-05-16 | 浙江苏泊尔橡塑制品有限公司 | Thermosetting plastic injection transfer moulding method and its mould |
| CN201092097Y (en) * | 2007-08-13 | 2008-07-30 | 宁波新锐机械有限公司 | Automatic charging BMC shaping equipment |
| CN201471669U (en) * | 2009-07-26 | 2010-05-19 | 叶建约 | Multifunctional rubber and plastic injection molding machine |
| CN102529016A (en) * | 2012-02-20 | 2012-07-04 | 北京理工大学 | Injection molding method and equipment for single polymer composite product |
| CN102896730A (en) * | 2012-10-16 | 2013-01-30 | 浙江京马电机有限公司 | Motor shell BMC (Bulk Molding Compound) waste-free molding method |
| CN203863918U (en) * | 2013-12-13 | 2014-10-08 | 杭州大禹机械有限公司 | Injection molding machine provided with receiving box structure |
-
2015
- 2015-08-29 CN CN201510261755.1A patent/CN105034261A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962232A (en) * | 2006-11-27 | 2007-05-16 | 浙江苏泊尔橡塑制品有限公司 | Thermosetting plastic injection transfer moulding method and its mould |
| CN201092097Y (en) * | 2007-08-13 | 2008-07-30 | 宁波新锐机械有限公司 | Automatic charging BMC shaping equipment |
| CN201471669U (en) * | 2009-07-26 | 2010-05-19 | 叶建约 | Multifunctional rubber and plastic injection molding machine |
| CN102529016A (en) * | 2012-02-20 | 2012-07-04 | 北京理工大学 | Injection molding method and equipment for single polymer composite product |
| CN102896730A (en) * | 2012-10-16 | 2013-01-30 | 浙江京马电机有限公司 | Motor shell BMC (Bulk Molding Compound) waste-free molding method |
| CN203863918U (en) * | 2013-12-13 | 2014-10-08 | 杭州大禹机械有限公司 | Injection molding machine provided with receiving box structure |
Non-Patent Citations (5)
| Title |
|---|
| 宋美艳: "基于汽车前大灯反射镜的BMC注射成型", 《中国优秀硕士学位论文全文数据库》 * |
| 崔忠圻: "《热加工技术简明手册 热处理分册》", 31 October 1997, 哈尔滨工业大学出版社 * |
| 布斯罗伊德等: "《面向制造及装配的产品设计》", 31 July 2015, 机械工业出版社 * |
| 张允诚等: "《电镀手册》", 31 December 2011, 国防工业出版社 * |
| 贾润礼等: "《塑料成型加工新技术》", 31 October 2006, 国防工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866383A (en) * | 2019-01-28 | 2019-06-11 | 广东赛普电器制造有限公司 | A kind of composite layer door pedal BMC injection moulding machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210969731U (en) | Injection mold for automotive interior parts | |
| CN211363270U (en) | Injection mold convenient to drawing of patterns | |
| CN105499530B (en) | A kind of aluminium alloy injection (mo(u)lding) machine and injection molding technique | |
| CN103203837B (en) | Photo-curing injection molding mould and method | |
| CN105965794B (en) | A kind of circular product injection mold with push-down sliding block demolding structure | |
| CN105034261A (en) | Moulding process and moulding device of BMC high-precision product | |
| CN219686433U (en) | Injection mold capable of rapidly demolding | |
| CN116653211A (en) | Model injection molding device for manufacturing electronic components | |
| CN207290817U (en) | A kind of injection molding machine with feed back manipulator | |
| CN104786432A (en) | Automatic mould discharge mechanism | |
| CN101195266A (en) | Dual compressing and shaping method for plastic jetting-molding machine | |
| CN212979125U (en) | A ejecting structure for injection mold | |
| CN212124021U (en) | Injection mold with multi-mold-cavity assembly | |
| CN210590399U (en) | Injection mold capable of being rapidly processed | |
| CN111016102B (en) | Control method and control device for pressure relief of injection molding machine and injection molding machine | |
| CN108297341A (en) | A kind of metal damascene activity orientation injection molding forming method and its mold | |
| CN2887574Y (en) | Improved injecting and pressure-keeping structure of injection moulding machine | |
| CN110354511B (en) | Production line for silica gel doll | |
| CN103481464B (en) | The mould of plastics of electronic pen penholder | |
| CN103950149B (en) | The automatic embedding pick-off unit of a kind of micro injection molding | |
| CN205467015U (en) | Rubber injection moulding machine | |
| CN104626609A (en) | Preparation method of carbon fiber automobile grill gauge | |
| CN220373800U (en) | Injection mold that solidification is prevented to multichannel | |
| CN213797850U (en) | Automobile parts processing is with injection mold that can demold fast | |
| CN220593843U (en) | Wire plug injection molding equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Pinghu Longgang District of Shenzhen City, Guangdong Province, 518000 new road Gateway Industrial City two No. 2 building the first floor (G04229-66) Applicant after: Shenzhen Bao Polytron Technologies Inc Address before: Pinghu Longgang District of Shenzhen City, Guangdong Province, 518100 new road Gateway Industrial City two No. 2 building the first floor (G04229-66) Applicant before: SHENZHEN XINXUAN PLASTIC AND METAL MANUFACTURE CO., LTD. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |
|
| RJ01 | Rejection of invention patent application after publication |