CN209920478U - Plastic precision injection molding processing device - Google Patents
Plastic precision injection molding processing device Download PDFInfo
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- CN209920478U CN209920478U CN201920234327.3U CN201920234327U CN209920478U CN 209920478 U CN209920478 U CN 209920478U CN 201920234327 U CN201920234327 U CN 201920234327U CN 209920478 U CN209920478 U CN 209920478U
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Abstract
The utility model discloses a plastics precision injection moulding processingequipment belongs to the field of moulding plastics, plastics precision injection moulding processingequipment, the discharge end of the subassembly of moulding plastics and the feed end looks adaptation of compound die subassembly, the subassembly of moulding plastics and compound die subassembly are fixed respectively on the fuselage, guide bar group passes the double crank and closes the module, and double crank closes the module and can follow guide bar group action reciprocating motion all around, it sets up on the back mould end that the module closed the module to transfer the module, it sets up on the movable mould that the module closed the module to take off the module, the discharge end of the subassembly of moulding plastics and the feed end looks adaptation that the module closed the module to the double crank. The utility model discloses a plastics precision injection moulding processingequipment adopts crank connecting rod formula MOLD CLAMPING APPARATUS to replace direct pressure formula MOLD CLAMPING APPARATUS, realizes opening and closing the mould motion through double crank connecting rod structure, make full use of crank connecting rod mechanism's power amplification characteristic and auto-lock characteristic, reach energy-efficient effect, and allow overload when moulding plastics the compound die, reduce the overlap problem of injection molding, improve the quality precision of moulding plastics.
Description
Technical Field
The utility model relates to a field of moulding plastics especially relates to a plastics precision injection moulding processingequipment.
Background
An injection molding apparatus is a main molding device for injection molding plastic into plastic products of various shapes using a plastic molding die. Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding device heats the plastic, applies high pressure to the molten plastic, enables the molten plastic to be injected to fill the mold cavity and is cooled and molded into a plastic product in the mold cavity, and has the advantages of high production speed, high efficiency, automation realization of operation, multiple designs and varieties, capability of molding a product with complex shape and the like. The injection molding is suitable for the fields of mass production, complex-shaped products and other molding processing, the core equipment for realizing the injection molding is the injection molding processing device, and the rationality of the structural design of the injection molding processing device has important influence on the processing quality, the processing efficiency and the like of injection molding parts.
Chinese patent document publication No. CN202826312U discloses a direct pressure injection molding machine, which comprises a frame, a mold opening and closing mechanism and an injection mechanism, wherein the injection mechanism comprises an injection base, a pre-molding motor, an injection cylinder, an injection seat and an injection moving cylinder, the rear end of the injection cylinder is connected with the pre-molding motor, the front end of the injection cylinder is connected with the injection seat, the injection moving cylinder is installed on the injection seat, the injection base is fixedly installed on the frame, the injection base is provided with a first linear guide rail, the injection cylinder and the base of the injection seat are both provided with a first linear slider, and the first linear slider is slidably sleeved on the first linear guide rail. The direct-pressure injection molding device needs to melt solid raw materials during working, then sends the materials on the middle screw rod in the feeding pipe to the nozzle under the action of the oil cylinder and the motor, and finally injects the materials into a mold for molding. However, the direct-pressure injection molding apparatus described above requires a high pressure to be maintained during injection and pressure holding, and therefore, energy consumption is large, and the mold clamping force F of the direct-pressure injection molding apparatus is P × S during injectionHydraulic cylinderAfter the pressure intensity is determined, the direct-pressure injection molding device generally does not allow the mold closing force to be overloaded, and when the mold closing force is overloaded, the direct-pressure injection molding device easily generates the problems of flash and the like in the injection molding process, so that the quality precision of injection molding is reduced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defect of the prior art, the utility model aims to solve the technical problem that a plastics precision injection moulding processingequipment is put forward is proposed, adopt crank connecting rod formula MOLD CLAMPING APPARATUS to replace direct-pressure formula MOLD CLAMPING APPARATUS, realize opening and closing the mould motion through double crank connecting rod structure, make full use of crank connecting rod mechanism's power amplification characteristic and auto-lock characteristic, reach energy-efficient effect, and allow the overload in the certain limit during the compound die of moulding plastics, the compound die is more firm, reduce the overlap problem of injection molding, and then improve the quality precision of moulding plastics.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a pair of accurate injection moulding processingequipment of plastics, including the subassembly of moulding plastics, compound die subassembly and fuselage, the discharge end of the subassembly of moulding plastics and the feed end looks adaptation of compound die subassembly, the subassembly of moulding plastics and compound die subassembly are fixed respectively on the fuselage, the compound die subassembly includes that the double crank closes the module, transfer the module, drawing of patterns group and guide bar group, guide bar group passes the double crank and closes the module, and the double crank closes the module and can follow guide bar and make reciprocating motion all around, transfer the module setting and close the rear mould of module at the double crank and serve, it serves at the movable mould that the module setting closed the module at the double crank, the discharge end of the subassembly of moulding plastics and the feed end looks adaptation that the double crank closed the module.
The utility model discloses preferred technical scheme lies in, double crank compound die group is including the compound die pneumatic cylinder, double crank connecting rod group, movable mould board group, fixed die plate and back template, the piston rod end of compound die pneumatic cylinder passes back template and double crank connecting rod group's the sliding seat end fixed connection, and the tailpiece of the piston rod of compound die pneumatic cylinder can drive double crank connecting rod group's sliding seat end and do reciprocating motion all around, double crank connecting rod group's connecting rod end is articulated with movable mould board group and back template respectively, movable mould board group and fixed die plate looks adaptation, fixed die plate group is passed in proper order to the guide bar group, movable mould board group and back template, and movable mould board group can be along guide rod group and do reciprocating motion all around, the mode setting is put on the back template, the tailpiece of the piston rod of demoulding group passes the one end of movable mould board group, the.
The utility model discloses preferred technical scheme lies in, the double crank linkage includes preceding linkage, back linkage, crank group and pushes away the seat, the front end of preceding linkage is articulated mutually with the back lateral wall of movable mould board group, the rear end of preceding linkage is articulated mutually with the front end of back linkage, the rear end of back linkage is articulated mutually with the preceding lateral wall of back template, the front end of crank group is articulated mutually with the middle part of back linkage, the rear end of crank group is articulated mutually with the seat of pushing away who fixes on the piston rod end of compound die pneumatic cylinder.
The utility model discloses preferred technical scheme lies in, the middle part of back connecting rod group has middle lug, pushes away to have on the seat and pushes away a seat connecting lug, and the front end of crank group is articulated mutually with middle lug, and the rear end of crank group is articulated mutually with pushing away a seat connecting lug.
The utility model discloses preferred technical scheme lies in, has back template connection lug on the preceding lateral wall of back template, and the rear end and the back template connection lug of back linkage are articulated mutually.
The utility model discloses preferred technical scheme lies in, movable mould board group includes preceding movable mould board and back movable mould board, and the front end of preceding connecting rod group is articulated mutually with the back lateral wall of back movable mould board, and the front end setting of taking off the module is on preceding movable mould board, and the rear end of taking off the module is fixed on back movable mould board, and preceding movable mould board and back movable mould board are passed in proper order to the guide bar group, and just preceding movable mould board and back movable mould board all can follow guide bar group and do reciprocating sliding all around.
The utility model discloses preferred technical scheme lies in, has back movable mould board on the back lateral wall of back movable mould board and connects the lug, and the front end and the back movable mould board of preceding linkage are connected the lug and are articulated mutually.
The utility model discloses preferred technical scheme lies in, drawing of patterns group is including ejecting pneumatic cylinder and ejecting pneumatic cylinder mount pad, and the tailpiece of the piston rod of ejecting pneumatic cylinder can pass preceding movable mould board and make flexible reciprocating motion, and the cylinder body rear end of ejecting pneumatic cylinder is fixed on ejecting pneumatic cylinder mount pad, and the cylinder body front end of ejecting pneumatic cylinder is fixed on preceding movable mould board, and ejecting pneumatic cylinder mount pad is fixed on the movable mould board of back.
The utility model discloses preferred technical scheme lies in, ejecting pneumatic cylinder includes hydraulic cylinder body, piston rod and piston, and the rear end of piston rod is fixed on the piston, and piston rod and piston all can make flexible reciprocating motion in the pneumatic cylinder body, and the front end of piston rod can pass hydraulic cylinder body and preceding movable mould board in proper order, and the front end of hydraulic cylinder body is fixed on preceding movable mould board, and the rear end of hydraulic cylinder body is fixed on ejecting pneumatic cylinder mount pad.
The utility model discloses preferred technical scheme lies in, and the diameter of axle of piston rod is less than the diameter of piston, and the opening aperture of hydraulic cylinder body is greater than the diameter of axle of piston rod and is less than the diameter of piston.
The utility model has the advantages that:
the utility model provides a plastics precision injection moulding processingequipment, including the subassembly of moulding plastics, compound die subassembly and fuselage, the discharge end of the subassembly of moulding plastics and the feed end looks adaptation of compound die subassembly, the subassembly of moulding plastics and compound die subassembly are fixed respectively on the fuselage, the compound die subassembly includes that the double crank closes the module, transfer the module group, drawing of patterns group and guide bar group, guide bar group passes the double crank and closes the module group, and the double crank closes the module group and can follow guide bar group front and back reciprocating motion, transfer the module group setting on the rear mould end that the module was closed to the double crank, it sets up on the movable mould of double crank closes the module serves to take off the module group, the discharge end of the subassembly of moulding plastics and the feed end looks adaptation that the double. The crank connecting rod type mold closing device is adopted to replace a direct-pressure type mold closing device, mold opening and closing movement is achieved through the double-crank connecting rod structure, the force amplification characteristic and the self-locking characteristic of the crank connecting rod mechanism are fully utilized, the high-efficiency and energy-saving effect is achieved, the mold closing force is generated by the injection molding device through the force amplification characteristic of the double-crank connecting rod structure, overload in a certain range is allowed during injection mold closing, mold closing is firmer, the problem of flash of an injection molding piece is reduced, and further the injection molding quality precision is improved.
Drawings
Fig. 1 is a schematic view of an overall structure of a plastic precision injection molding processing device according to an embodiment of the present invention;
FIG. 2 is a structural isometric view of a clamp assembly provided in a particular embodiment of the present invention;
FIG. 3 is a schematic diagram of a mold clamping assembly according to an embodiment of the present invention;
fig. 4 is a structural perspective view of the double crank closing module and the adjusting module provided in the embodiment of the present invention;
fig. 5 is a top view of the structure of the dual crank closing module and the adjusting module according to the embodiment of the present invention;
fig. 6 is a sectional view of a structure of the movable mold plate group and the demolding group according to the embodiment of the present invention.
In the figure:
1. an injection molding assembly; 2. a mold closing assembly; 21. a double crank assembly module; 211. a die closing hydraulic cylinder; 212. a double crank linkage; 2121. a front linkage; 2122. a rear linkage; 2123. a crank set; 2124. a pushing seat; 2125. a middle lug; 2126. the push seat is connected with the lug; 213. a movable template group; 2131. a front moving template; 2132. a rear movable template; 2133. the rear movable template is connected with a lug; 214. fixing a template; 215. a rear template; 2151. the rear template is connected with the lug; 22. adjusting the module; 23. demoulding; 231. ejecting a hydraulic cylinder; 2311. a hydraulic cylinder block; 2312. a piston rod; 2313. a piston; 232. ejecting a hydraulic cylinder mounting seat; 24. a guide rod group; 3. a fuselage.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 6, the precision plastic injection molding processing apparatus provided in this embodiment includes an injection molding assembly 1, a mold closing assembly 2, and a machine body 3, a discharge end of the injection molding assembly 1 is adapted to a feed end of the mold closing assembly 2, the injection molding assembly 1 and the mold closing assembly 2 are respectively fixed on the machine body 3, the mold closing assembly 2 includes a dual crank set 21, a mold adjusting set 22, a mold releasing set 23, and a guide rod set 24, the guide rod set 24 passes through the dual crank set 21, the dual crank set 21 can reciprocate back and forth along the guide rod set 24, the mold adjusting set 22 is disposed at a rear mold end of the dual crank set 21, the mold releasing set 23 is disposed at a movable mold end of the dual crank set 21, and the discharge end of the injection molding assembly 1 is adapted to the feed end of the dual crank set 21. In order to enable the plastic precision injection molding processing device to realize injection molding processing with high efficiency and energy conservation, the mold closing is firmer, the flash problem of injection molding parts is reduced, and the injection molding quality precision is further improved. Further, the injection molding assembly 1 injects molten plastic into the mold closing assembly 2 to realize injection molding, wherein the mold adjusting assembly 22 is used for adjusting the front and rear positions of the rear mold end of the double-crank closing module 21, the mold releasing assembly 23 is used for ejecting and releasing a plastic part from a mold, the guide rod assembly 24 can play a role in guiding the double-crank closing module 21, the double-crank closing module 21 reciprocates along the guide rod assembly 24 to realize mold opening and closing movement, the double-crank closing module 21 adopts a double-crank connecting rod structure to realize mold opening and closing movement, the stroke, speed and force amplification characteristics and self-locking characteristics of the crank-connecting rod mechanism are fully utilized to achieve the effects of rapidness, high efficiency and energy conservation, the injection molding device generates mold closing force through the force expansion characteristic of the double-crank connecting rod structure, and can overload more than 10% under normal conditions. Meanwhile, the double-crank closing module 21 is of a double-crank connecting rod type structure and is made of cast steel, the rigidity of the double-crank closing module is better than that of a direct-pressure type mold closing device, when high-pressure mold locking is carried out, burrs are generated after the cast steel forming all crank connecting rods of the double-crank closing module 21 is deformed, and when mold closing force is just overloaded, the burrs generated by the injection molding device adopting the double-crank connecting rod mold closing structure are smaller than those generated by the injection molding device adopting the direct-pressure type mold closing structure under the condition that the burrs are generated similarly because the elastic modulus difference between hydraulic oil and the cast steel is about 10 times, so that the problem of the burrs of an injection molding part is reduced, and the injection molding quality.
In order to realize the die opening and closing movement of the double crank closing die set 21 with high efficiency and energy saving. Further, the double-crank closing module 21 includes a closing hydraulic cylinder 211, a double-crank connecting rod group 212, a movable mold plate group 213, a fixed mold plate 214 and a rear mold plate 215, a piston rod end of the closing hydraulic cylinder 211 passes through the rear mold plate 215 to be fixedly connected with a push base end of the double-crank connecting rod group 212, and the piston rod end of the die assembly hydraulic cylinder 211 can drive the push seat end of the double-crank connecting rod group 212 to reciprocate back and forth, the connecting rod end of the double-crank connecting rod group 212 is respectively hinged with the movable die plate group 213 and the rear die plate 215, the movable die plate group 213 is matched with the fixed die plate 214, the guide rod group 24 sequentially passes through the fixed die plate 214, the movable die plate group 213 and the rear die plate 215, and the movable mold plate set 213 can slide back and forth along the guide rod set 24, the mold adjusting set 22 is arranged on the rear mold plate 215, the piston rod end of the demolding set 23 penetrates through one end of the movable mold plate set 213, and the discharge end of the injection molding assembly 1 is matched with the feed end of the fixed mold plate 214. The piston rod end of the die closing hydraulic cylinder 211 performs telescopic reciprocating motion, and can drive the push seat end of the double-crank connecting rod group 212 to perform reciprocating motion back and forth, so as to drive the double-crank connecting rod group 212 to perform reciprocating motion, and drive the movable die plate group 213 to perform reciprocating sliding back and forth along the guide rod group 24, so that the movable die plate group 213 is separated from the fixed die plate 214 to realize die opening or locking, and die closing is realized, and further, die opening and closing motion is realized. When the movable mold plate set 213 is just contacted with the mold on the fixed mold plate 214, the double-crank connecting rod set 212 is in a state of incomplete extension, under the thrust action of the mold closing hydraulic cylinder 211, the crank connecting rod set 212 generates a force amplification effect until the crank connecting rod set 212 extends and enters a self-locking state, the movable mold plate set 213 and the mold on the fixed mold plate 214 are locked and closed, wherein when the movable mold plate set 213 is just contacted with the mold on the fixed mold plate 214, the degree of incomplete extension of the double-crank connecting rod set 212 is adjusted through the common matching of the mold adjusting set 22 and the mold closing hydraulic cylinder 211 according to the mold locking force required by the process. The adjusting module 22 can adjust the front and back position of the rear die plate 215, and through the adjustment of the adjusting module 22, the rear die plate 215, the die closing hydraulic cylinder 211, the double-crank connecting rod set 212 and the movable die plate set 213 can be pushed to move forwards or backwards along the guide rod set 24, so that the distance between the movable die plate set 213 and the fixed die plate 214 is adjusted, and the die adjusting function is realized according to the die thickness and the die locking force required by the process. The crank connecting rod type injection molding device performs mold opening and closing movement through a crank connecting rod structure of the double crank connecting rod group 212, mold closing force is generated through force amplification, pressure can be relieved in the injection molding and pressure maintaining processes after high-pressure mold locking, the direct-pressure type injection molding device needs to keep high pressure all the time in the injection molding and pressure maintaining processes, and the diameter of a direct-pressure type mold closing hydraulic cylinder is far larger than that of a crank connecting rod type mold closing hydraulic cylinder, so that the crank connecting rod type injection molding device is more power-saving and energy-saving. Through the process, the double-crank closing module 21 can realize the die opening and closing movement in an efficient and energy-saving manner.
In order to make the double crank connecting rod group 212 drive the movable mould plate group 213 to realize reciprocating motion. Further, the dual crank linkage 212 includes a front linkage 2121, a rear linkage 2122, a crank linkage 2123 and a push seat 2124, the front end of the front linkage 2121 is hinged to the rear sidewall of the movable mold plate set 213, the rear end of the front linkage 2121 is hinged to the front end of the rear linkage 2122, the rear end of the rear linkage 2122 is hinged to the front sidewall of the rear mold plate 215, the front end of the crank linkage 2123 is hinged to the middle portion of the rear linkage 2122, and the rear end of the crank linkage assembly 2123 is hinged to the push seat 2124 fixed to the end of the piston rod of the hydraulic cylinder 211. The piston rod end of the mold closing hydraulic cylinder 211 performs a reciprocating motion to drive the push seat 2124 to perform a reciprocating motion back and forth, so as to drive the crank set 2123 to perform a reciprocating motion, drive the rear connecting rod set 2122 to perform a reciprocating motion, drive the front connecting rod set 2121 to perform a reciprocating motion, and further drive the movable mold plate set 213 to perform a reciprocating motion. Through the above process, the double-crank connecting rod set 212 drives the movable mold plate set 213 to reciprocate.
To facilitate removal of the crankset 2123. Further, the rear linkage 2122 has a middle boss 2125 at its middle, a push seat attachment boss 2126 on the push seat 2124, a front end of the crank set 2123 is hinged to the middle boss 2125, and a rear end of the crank set 2123 is hinged to the push seat attachment boss 2126. The middle lug 2125 and the push seat connecting lug 2126 are provided to facilitate the assembly and disassembly of the crank set 2123.
To facilitate removal and installation of the rear linkage 2122. Further, the rear template 215 has a rear template attachment lug 2151 on a front side wall thereof, and the rear end of the rear linkage 2122 is hinged to the rear template attachment lug 2151. By providing the rear template connecting lug 2151, the rear linkage 2122 and the rear template 215 are conveniently disassembled.
In order to realize the reciprocating motion and the unloading and demoulding of the movable mould plate group 213. Further, the movable mold plate set 213 includes a front movable mold plate 2131 and a rear movable mold plate 2132, the front end of the front connecting rod set 2121 is hinged to the rear side wall of the rear movable mold plate 2132, the front end of the demolding set 23 is disposed on the front movable mold plate 2131, the rear end of the demolding set 23 is fixed on the rear movable mold plate 2132, the guide rod set 24 sequentially penetrates through the front movable mold plate 2131 and the rear movable mold plate 2132, and both the front movable mold plate 2131 and the rear movable mold plate 2132 can slide back and forth along the guide rod set 24. The front connecting rod group 2121 rotates in a reciprocating manner to drive the rear movable template 2132, the demolding group 23 and the front movable template 2131 to synchronously reciprocate along the guide rod group 24, wherein after the plastic part is subjected to injection molding and cooled, the demolding group 23 can eject and unload the plastic part on the front movable template 2131 to realize demolding along with the fact that the front movable template 2131 is far away from the fixed template 214. Through the above process, the movable die plate set 213 can realize reciprocating motion and can conveniently realize unloading and demoulding.
To facilitate removal of the front linkage 2121. Further, rear moving die plate 2132 has rear moving die plate connecting lugs 2133 on its rear side wall, and the front end of front linkage 2121 is hinged to rear moving die plate connecting lugs 2133. Through setting up back movable mould board connecting lug 2133, make things convenient for front linkage 2121 and back movable mould board 2132 to carry out the dismouting.
In order to enable the stripping module 23 to perform the unloading and stripping. Further, the demolding group 23 includes an ejection hydraulic cylinder 231 and an ejection hydraulic cylinder mounting seat 232, a piston rod end of the ejection hydraulic cylinder 231 can penetrate through the front movable die plate 2131 to make telescopic reciprocating motion, a cylinder body rear end of the ejection hydraulic cylinder 231 is fixed on the ejection hydraulic cylinder mounting seat 232, a cylinder body front end of the ejection hydraulic cylinder 231 is fixed on the front movable die plate 2131, and the ejection hydraulic cylinder mounting seat 232 is fixed on the rear movable die plate 2132. After the plastic part is injection molded and cooled, the piston rod end of the ejection hydraulic cylinder 231 can penetrate through the front movable template 2131 and eject and unload the plastic part in the mold on the front movable template 2131 to realize demolding along with the fact that the front movable template 2131 is far away from the fixed template 214. The ejection hydraulic cylinder mounting base 232 is used for fixedly mounting the ejection hydraulic cylinder 231. Through the process, the demoulding group 23 can realize unloading and demoulding.
In order to realize the unloading and demoulding of the ejection hydraulic cylinder 231 through telescopic reciprocating motion. Further, the ejection hydraulic cylinder 231 comprises a hydraulic cylinder body 2311, a piston rod 2312 and a piston 2313, the rear end of the piston rod 2312 is fixed to the piston 2313, the piston rod 2312 and the piston 2313 can both perform telescopic reciprocating motion in the hydraulic cylinder body 2311, the front end of the piston rod 2312 can sequentially penetrate through the hydraulic cylinder body 2311 and the front movable template 2131, the front end of the hydraulic cylinder body 2311 is fixed to the front movable template 2131, and the rear end of the hydraulic cylinder body 2311 is fixed to the ejection hydraulic cylinder mounting base 232. After the hydraulic cylinder body 2311 is filled with oil, the piston 2313 is pushed to reciprocate, the piston rod 2312 is driven to stretch and reciprocate, the front end of the piston rod 2312 can sequentially penetrate through the hydraulic cylinder body 2311 and the front movable template 2131, and plastic parts in the die on the front movable template 2131 are ejected out and unloaded to realize demolding. Through the above process, the ejection hydraulic cylinder 231 is made to perform the unloading and demolding through the telescopic reciprocating motion.
To prevent the piston rod 2312 from coming off the hydraulic cylinder body 2311. Further, the axial diameter of the piston rod 2312 is smaller than the diameter of the piston 2313, and the opening hole diameter of the hydraulic cylinder body 2311 is larger than the axial diameter of the piston rod 2312 and smaller than the diameter of the piston 2313. The diameter of the piston rod 2312 is smaller than the opening diameter of the hydraulic cylinder body 2311, so that the front end of the piston rod 2312 can smoothly extend out of the opening of the hydraulic cylinder body 2311, and the diameter of the piston 2313 fixed to the rear end of the piston rod 2312 is larger than the opening diameter of the hydraulic cylinder body 2311, so that the piston rod 2312 can be prevented from being separated from the hydraulic cylinder body 2311, and a limiting effect is achieved.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (10)
1. The utility model provides a plastics precision injection moulding processingequipment, includes injection moulding subassembly (1), compound die subassembly (2) and fuselage (3), the discharge end of injection moulding subassembly (1) with the feed end looks adaptation of compound die subassembly (2), injection moulding subassembly (1) and compound die subassembly (2) are fixed respectively on fuselage (3), its characterized in that:
the die assembly component (2) comprises a double-crank die assembly group (21), a die adjusting group (22), a die stripping group (23) and a guide rod group (24);
the guide rod group (24) penetrates through the double-crank combined module (21), and the double-crank combined module (21) can reciprocate back and forth along the guide rod group (24);
the adjusting module (22) is arranged at the rear die end of the double-crank combined module (21);
the demoulding group (23) is arranged on the movable mould end of the double-crank combined mould group (21);
the discharge end of the injection molding assembly (1) is matched with the feed end of the double-crank combined module (21).
2. The precision injection molding processing device for plastic according to claim 1, characterized in that:
the double-crank combination module (21) comprises a combination hydraulic cylinder (211), a double-crank connecting rod group (212), a movable template group (213), a fixed template (214) and a rear template (215);
the piston rod end of the die-closing hydraulic cylinder (211) penetrates through the rear template (215) and is fixedly connected with the push seat end of the double-crank connecting rod set (212), and the piston rod end of the die-closing hydraulic cylinder (211) can drive the push seat end of the double-crank connecting rod set (212) to reciprocate back and forth;
the connecting rod end of the double-crank connecting rod group (212) is hinged with the movable mould plate group (213) and the rear mould plate (215) respectively;
the movable template group (213) is matched with the fixed template (214);
the guide rod group (24) sequentially penetrates through the fixed die plate (214), the movable die plate group (213) and the rear die plate (215), and the movable die plate group (213) can slide back and forth along the guide rod group (24) in a reciprocating manner;
the adjusting module (22) is arranged on the rear template (215);
the piston rod end of the demoulding group (23) penetrates through one end of the movable mould plate group (213);
the discharge end of the injection molding assembly (1) is matched with the feed end of the fixed mold plate (214).
3. The precision injection molding processing device for plastic according to claim 2, characterized in that:
the double-crank connecting rod group (212) comprises a front connecting rod group (2121), a rear connecting rod group (2122), a crank group (2123) and a push seat (2124);
the front end of the front connecting rod group (2121) is hinged with the rear side wall of the movable mold plate group (213), the rear end of the front connecting rod group (2121) is hinged with the front end of the rear connecting rod group (2122), and the rear end of the rear connecting rod group (2122) is hinged with the front side wall of the rear mold plate (215);
the front end of the crank set (2123) is hinged with the middle part of the rear connecting rod set (2122), and the rear end of the crank set (2123) is hinged with the push seat (2124) fixed on the piston rod end of the die assembly hydraulic cylinder (211).
4. The precision injection molding processing device for plastic according to claim 3, characterized in that:
the middle part of the rear connecting rod group (2122) is provided with a middle lug (2125);
the push seat (2124) is provided with a push seat connecting lug (2126);
the front end of the crank set (2123) is hinged with the middle lug (2125), and the rear end of the crank set (2123) is hinged with the push seat connecting lug (2126).
5. The precision injection molding processing device for plastic according to claim 3, characterized in that:
the front side wall of the rear template (215) is provided with a rear template connecting lug (2151);
the rear end of the rear connecting rod group (2122) is hinged with the rear template connecting lug (2151).
6. The precision injection molding processing device for plastic according to claim 3, characterized in that:
the movable die plate group (213) comprises a front movable die plate (2131) and a rear movable die plate (2132);
the front end of the front connecting rod group (2121) is hinged with the rear side wall of the rear movable template (2132);
the front end of the demoulding group (23) is arranged on the front movable template (2131), and the rear end of the demoulding group (23) is fixed on the rear movable template (2132);
the guide rod group (24) sequentially penetrates through the front movable template (2131) and the rear movable template (2132), and the front movable template (2131) and the rear movable template (2132) can slide back and forth along the guide rod group (24) in a reciprocating mode.
7. The precision injection molding processing device for plastic according to claim 6, characterized in that:
the rear side wall of the rear movable template (2132) is provided with a rear movable template connecting lug (2133);
the front end of the front connecting rod group (2121) is hinged with the rear movable template connecting lug (2133).
8. The precision injection molding processing device for plastic according to claim 6, characterized in that:
the demoulding group (23) comprises an ejection hydraulic cylinder (231) and an ejection hydraulic cylinder mounting seat (232);
the piston rod end of the ejection hydraulic cylinder (231) can penetrate through the front movable template (2131) to do telescopic reciprocating motion, the rear end of the cylinder body of the ejection hydraulic cylinder (231) is fixed on the ejection hydraulic cylinder mounting seat (232), and the front end of the cylinder body of the ejection hydraulic cylinder (231) is fixed on the front movable template (2131);
the ejection hydraulic cylinder mounting seat (232) is fixed on the rear movable template (2132).
9. The precision injection molding processing device for plastic according to claim 8, characterized in that:
the ejection hydraulic cylinder (231) comprises a hydraulic cylinder body (2311), a piston rod (2312) and a piston (2313);
the rear end of the piston rod (2312) is fixed on the piston (2313), and the piston rod (2312) and the piston (2313) can both do telescopic reciprocating motion in the hydraulic cylinder body (2311);
the front end of the piston rod (2312) can sequentially penetrate through the hydraulic cylinder body (2311) and the front movable template (2131);
the front end of the hydraulic cylinder body (2311) is fixed on the front movable template (2131), and the rear end of the hydraulic cylinder body (2311) is fixed on the ejection hydraulic cylinder mounting seat (232).
10. The precision injection molding processing device for plastic according to claim 9, characterized in that:
the diameter of the shaft of the piston rod (2312) is smaller than the diameter of the piston (2313), and the diameter of the opening of the hydraulic cylinder body (2311) is larger than the diameter of the shaft of the piston rod (2312) and smaller than the diameter of the piston (2313).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571961A (en) * | 2020-05-21 | 2020-08-25 | 界首市亚鑫塑业科技有限公司 | Injection molding device and injection molding method for all-plastic hollow floor |
| CN112123680A (en) * | 2020-09-16 | 2020-12-25 | 信阳中部半导体技术有限公司 | Production process of flexible rubber frame for LED backlight source |
| CN113201827A (en) * | 2021-05-27 | 2021-08-03 | 江苏悦达棉纺有限公司 | Roving frame pressing palm correcting device |
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2019
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571961A (en) * | 2020-05-21 | 2020-08-25 | 界首市亚鑫塑业科技有限公司 | Injection molding device and injection molding method for all-plastic hollow floor |
| CN112123680A (en) * | 2020-09-16 | 2020-12-25 | 信阳中部半导体技术有限公司 | Production process of flexible rubber frame for LED backlight source |
| CN113201827A (en) * | 2021-05-27 | 2021-08-03 | 江苏悦达棉纺有限公司 | Roving frame pressing palm correcting device |
| CN113201827B (en) * | 2021-05-27 | 2022-03-25 | 江苏悦达棉纺有限公司 | Roving frame pressing palm correcting device |
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