CN115556316A

CN115556316A - Automatic demoulding and discharging system for injection molding production of rubber parts

Info

Publication number: CN115556316A
Application number: CN202210431905.9A
Authority: CN
Inventors: 刘桢
Original assignee: Changzhou Jianzheng Rubber And Plastic Products Co ltd
Current assignee: Changzhou Jianzheng Rubber And Plastic Products Co ltd
Priority date: 2022-04-23
Filing date: 2022-04-23
Publication date: 2023-01-03

Abstract

The application relates to an automatic demoulding and unloading system for rubber part injection moulding production, which relates to the field of injection moulding production equipment and comprises a frame, an injection moulding device and a demoulding device, wherein the injection moulding device comprises an injection moulding mechanism and a forming mechanism, the forming mechanism comprises an upper mould, a middle mould and a lower mould, the upper mould is connected with the injection moulding mechanism, the middle mould is placed on the lower mould, and the lower mould is in sliding connection with the frame; the demolding device comprises a transverse moving mechanism, a demolding mechanism and a lifting mechanism, the demolding mechanism is positioned on one side of the injection molding device and comprises a top plate, a plurality of demolding columns and a demolding driving piece, and the transverse moving mechanism is used for driving the lower mold to move towards the direction close to or far away from the top of the top plate; the lifting mechanism is used for lifting the middle die to separate the middle die from the lower die; a plurality of injection molding through cavities are formed in the middle die, the demolding columns correspond to the injection molding through cavities, and the demolding driving piece is connected with the top plate. This application realizes the automatic drawing of patterns and the processing of unloading to the rubber spare of moulding plastics, and is easy and simple to handle, and degree of automation is high, effectively improves the production machining efficiency of moulding plastics.

Description

Automatic demoulding and discharging system for injection molding production of rubber parts

Technical Field

The application relates to the field of injection molding production equipment, in particular to an automatic demolding and discharging system for injection molding production of rubber parts.

Background

The injection molding principle is that granular or powdery raw materials are added into a hopper of an injection device, the raw materials are heated and melted to be in a flowing state, and enter a mold cavity through a nozzle and a pouring system of the mold under the pushing of a screw rod or a piston of the injection device, and are hardened and shaped in the mold cavity. Injection molding is one of the common processing methods for producing rubber parts. The mold clamping device of the related vertical injection molding machine is arranged in a straight line with the axis of the injection device and is perpendicular to the ground. The automatic plasticizing machine has the advantages of small occupied area, convenience in assembling and disassembling of the die, easiness in installing the inserts, capability of uniformly plasticizing materials falling from the hopper, easiness in realizing automation, automatic line management of multiple machines and the like.

In view of the above related technologies, the inventor thinks that after injection molding, the related rubber part needs to be manually taken out of the opened mold cavity, which is inconvenient to operate and affects the production and processing efficiency.

Disclosure of Invention

In order to improve above-mentioned problem, the application provides a rubber spare is automatic drawing of patterns unloading system for injection molding production.

The application provides a pair of rubber spare is automatic drawing of patterns system of unloading for injection molding production adopts following technical scheme:

an automatic demolding and discharging system for rubber part injection molding production comprises a rack, an injection molding device and a demolding device, wherein the injection molding device comprises an injection molding mechanism and a forming mechanism, the forming mechanism comprises an upper mold, a middle mold and a lower mold which are mutually matched, the upper mold is connected with the injection molding mechanism, the middle mold is placed on the lower mold, and the lower mold is in sliding connection with the rack; the demolding device comprises a transverse moving mechanism, a demolding mechanism and a lifting mechanism, the demolding mechanism is positioned on one side of the injection molding device and comprises a top plate, a plurality of demolding columns and a demolding driving piece, the demolding columns are arranged on the top plate, and the transverse moving mechanism is used for driving the lower mold to move towards the direction close to or far away from the top of the top plate; the lifting mechanism is used for lifting the middle die to separate the middle die from the lower die; the injection molding device comprises a middle mold, a plurality of injection molding through cavities are formed in the middle mold, demolding columns correspond to the injection molding through cavities, the output end of a demolding driving piece is connected with a top plate and used for driving the top plate to move towards the direction close to or far away from the middle mold, and the demolding columns are used for ejecting an injection molding piece out of the injection molding through cavities.

By adopting the technical scheme, the raw materials are injected into the forming mechanism through the injection molding mechanism and are formed, then the transverse moving mechanism drives the lower die to move to the top of the top plate, the middle die is lifted by the lifting mechanism to be separated from the lower die, and the injection molding piece is separated from the lower die along with the middle die; then, the transverse moving mechanism is started again to drive the lower die to move to the bottom of the upper die; and then, starting the lifting mechanism to lower the middle die back to the initial position. Then, the demoulding mechanism is started, the demoulding driving piece drives the top plate and the demoulding column on the top plate to move towards the direction close to the middle mould until the demoulding column penetrates into the injection mould through cavity of the middle mould and ejects the injection moulding piece out of the injection mould through cavity, so that the automatic demoulding treatment of the injection moulding piece is realized, the operation is simple and convenient, the automation degree is high, and the injection moulding production and processing efficiency is effectively improved.

Preferably, the frame is connected with the drive mounting panel, the drive mounting panel is located the bottom of roof, the drawing of patterns driving piece sets up on the drive mounting panel, the one side that the roof is close to the drive mounting panel is connected with a plurality of drawing of patterns guide arms, the one end that the roof was kept away from to the drawing of patterns guide arm is worn to locate in the drive mounting panel, and with drive mounting panel sliding connection.

Through adopting above-mentioned technical scheme, when drawing of patterns driving piece drive roof and the drawing of patterns post on the roof removed, the guide arm slided in the drive mounting panel, and the guide arm plays good guide effect to the removal process of roof, ensures the steady reliability of drawing of patterns jacking in-process.

Preferably, the lifting mechanism is connected with the frame, the lifting mechanism includes a lifting driving piece and a lifting fixture block, the lifting fixture block is located the both sides of well mould moving direction, the both sides rigid coupling of well mould moving direction has the cutting, set up on the lifting fixture block and supply the cutting to insert the lifting slot of establishing, the output and the lifting fixture block of lifting driving piece are connected, the lifting driving piece is used for driving the lifting fixture block and removes along the face direction of the well mould of perpendicular to.

Through adopting above-mentioned technical scheme, when sideslip mechanism drive lower mould removed the top of roof, well mould was along with lower mould synchronous motion, and the cutting on the well mould is inserted and is located the lifting slot of the lifting fixture block that is located well mould both sides, then when the lifting driving piece drove the lifting fixture block and removes, the lifting fixture block drove well mould removal through the lifting slot.

Preferably, the lifting driving piece includes lifting cylinder, lifting connecting rod and lifting synchronization frame, the lifting cylinder sets up in the one side that the roof was kept away from to the drive mounting panel, the piston rod and the lifting synchronization frame of lifting cylinder are connected, the one end and the lifting synchronization frame of lifting connecting rod are connected, the other end and the lifting fixture block of lifting connecting rod are connected.

By adopting the technical scheme, the lifting cylinder drives the lifting synchronous frame to move through the piston rod, and the lifting synchronous frame drives each lifting fixture block to move through the lifting connecting rod, so that the middle die is lifted; due to the arrangement of the lifting synchronous frame, the lifting clamping blocks on the two sides of the middle die can be synchronously lifted and moved under the action of the lifting connecting rod, so that the stability of the middle die in the lifting process is improved, and the middle die is not prone to inclining in the lifting process.

Preferably, the frame includes the base, moulds plastics roof-rack and cantilever crane, the base with mould plastics roof-rack relatively fixed, the cantilever crane is located the base and moulds plastics between the roof-rack, lower mould and cantilever crane sliding connection, demoulding mechanism and sideslip mechanism are all installed on the cantilever crane, be provided with die sinking mechanism between base and the cantilever crane, die sinking mechanism is used for driving the cantilever crane to the direction removal of being close to or keeping away from the mould.

Through adopting above-mentioned technical scheme, the cantilever frame passes through the die sinking mechanism to be connected between base and the roof frame of moulding plastics, and the die sinking mechanism can drive the cantilever frame and slide between base and the roof frame of moulding plastics to when the material injection moulding back in the make-up mechanism, the die sinking mechanism drives lower mould and well mould through the cantilever frame and moves down, breaks away from with last mould, thereby realizes the die sinking, so that follow-up injection molding's taking out.

Preferably, the die sinking mechanism includes die sinking driving piece and a plurality of guide pillar, the guide pillar sets up between injection moulding roof-rack and machine base, the both ends of guide pillar respectively with injection moulding roof-rack and machine base rigid coupling, the cantilever frame is worn to locate by the guide pillar, cantilever frame and guide pillar sliding connection, the output and the cantilever frame of die sinking driving piece are connected for drive cantilever frame slides along the guide pillar axial.

Through adopting above-mentioned technical scheme, mould plastics between roof-rack and the base through the guide pillar relatively fixed, and in the cantilever crane was worn to locate by the guide pillar, when die sinking driving piece drive cantilever crane slided from top to bottom, the guide pillar was to the removal direction location effect of cantilever crane.

Preferably, the transverse moving mechanism comprises a transverse moving cylinder, a transverse moving connecting rod and a reversing plate, the transverse moving cylinder is arranged on the cantilever frame, a piston rod of the transverse moving cylinder is connected with the reversing plate, the transverse moving connecting rod is arranged at one end, close to the transverse moving cylinder, of the reversing plate, and one end, far away from the reversing plate, of the transverse moving connecting rod is connected with the lower die.

By adopting the technical scheme, the transverse moving cylinder drives the reversing plate to move through the piston rod, then the reversing plate drives the lower die to slide on the cantilever frame through the transverse moving connecting rod, the reversing plate is arranged to play a reversing effect on the arrangement of the transverse moving cylinder, and the occupied space of the transverse moving mechanism is reduced.

Preferably, still include discharge apparatus, discharge apparatus includes elevating system, translation mechanism and presss from both sides material mechanism, the one side rigid coupling that the roof-rack of moulding plastics is close to shedder has the support of unloading, discharge apparatus installs on the support of unloading, it includes presss from both sides the flitch and sets up a plurality of clamping jaws on pressing from both sides the flitch to press from both sides material mechanism, the clamping jaw is located well mould top, the clamping jaw is used for snatching the injection molding, elevating system's output and pressing from both sides the flitch and be connected for the drive presss from both sides the flitch and removes to the direction that is close to or keeps away from well mould, translation mechanism's output and pressing from both sides the flitch and be connected for the drive presss from both sides the flitch and removes along the face direction that is on a parallel with well mould.

Through adopting above-mentioned technical scheme, shedder is ejecting back from the shaping through-hole of well mould with the injection molding, and discharge apparatus starts, and elevating system drives to press from both sides and gets the mechanism and remove to the direction that is close to well mould, and after the clamping jaw snatched the injection molding, elevating system drove the clamping jaw and shifts up for the injection molding breaks away from with well mould completely, and afterwards, translation mechanism starts, drives the clamping jaw and to a side translation to the material receiving end, and the clamping jaw loosens the clamping action to the injection molding afterwards, thereby accomplishes the unloading to the injection molding.

Preferably, the side, close to the clamping jaw, of the material clamping plate is provided with cleaning brushes, and the cleaning brushes are arranged along the driving direction perpendicular to the translation mechanism.

Through adopting above-mentioned technical scheme, the subassembly of unloading is in the completion back of unloading to the injection molding, presss from both sides the flitch and under elevating system and translation mechanism's effect, moves to the upper surface that is close to the well mould, contradicts until the upper surface of clearance brush and well template, afterwards, translation mechanism drive presss from both sides the flitch and removes, and the upper surface that clearance brush just can the mould sweeps then, realizes the cleaing away of the residue etc. of moulding plastics to the well mould surface, ensures the product quality of follow-up continuous injection moulding production.

Preferably, a nozzle assembly is arranged on the material clamping plate and used for spraying a release agent to the surface of the middle mold.

Through adopting above-mentioned technical scheme, when translation mechanism drives the flitch of pressing from the well sweep, the release agent is sprayed to the centering die upper surface to the nozzle subassembly to when the production of subsequent moulding plastics, the injection molding is easy to break away from the logical chamber of moulding plastics of well mould, ensures the smoothness of follow-up drawing of patterns processing.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the automatic demolding and unloading treatment of the injection molding rubber part is realized, the operation is simple and convenient, the automation degree is high, and the injection molding production and processing efficiency is effectively improved;

2. the cleaning bristles are arranged, so that injection molding residues and the like on the surface of the centering die are cleaned, and the product quality of subsequent continuous injection molding production is guaranteed;

3. through setting up nozzle assembly, when the drawing of patterns is unloaded to the centering die upper surface spray release agent to when follow-up production of moulding plastics, the injection molding is easy to break away from the logical chamber of moulding plastics of well mould, ensures follow-up drawing of patterns and handles the smoothness.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

FIG. 2 is a schematic structural diagram of an embodiment of the present application for embodying a traversing mechanism.

FIG. 3 is a front view of an embodiment of the present application for embodying an ejection device.

Fig. 4 is a schematic structural diagram for embodying a lifting mechanism according to an embodiment of the present application.

Fig. 5 is a partial cross-sectional view of an embodiment of the present application for embodying a clamping mechanism.

Fig. 6 is a schematic structural diagram for embodying an auxiliary lifting mechanism according to an embodiment of the present application.

Fig. 7 is a schematic structural diagram for embodying a discharging device in an embodiment of the present application.

Fig. 8 is a partially enlarged view of a portion a in fig. 7.

Description of reference numerals: 1. a frame; 11. a machine base; 12. injection molding of the top frame; 13. a cantilever frame; 131. a cantilever; 132. a connecting arm; 133. driving the mounting plate; 14. a mold opening mechanism; 141. a guide post; 142. opening the die to drive the piece; 2. an injection molding device; 21. an injection molding mechanism; 22. a molding mechanism; 221. an upper die; 222. a middle mold; 223. a lower die; 224. cutting; 225. injection molding the through cavity; 3. a demolding device; 31. a traversing mechanism; 311. a transverse moving cylinder; 312. transversely moving the connecting rod; 313. a reversing plate; 32. a lifting mechanism; 321. lifting the driving piece; 322. a lifting cylinder; 323. a lifting link; 324. lifting the synchronous frame; 325. lifting the fixture block; 326. connecting blocks; 327. lifting the block; 328. lifting the slot; 33. a demolding mechanism; 331. a top plate; 332. demoulding columns; 333. a demolding driving member; 334. demoulding guide rods; 34. a clamping mechanism; 341. a butting block; 342. a spring; 343. clamping the driving member; 3431. a drive column; 3432. coarse section; 3433. a thin section; 3434. driving the wedge surface; 3435. a connecting shaft; 3436. a first drive lever; 3437. a second drive lever; 344. mounting grooves; 35. an auxiliary lifting mechanism; 351. an auxiliary drive; 352. assisting to lift the plate; 353. an auxiliary cylinder; 354. an auxiliary link; 355. an auxiliary synchronization frame; 36. a support chassis; 37. a support link; 4. a discharge device; 41. a discharge support; 42. a translation mechanism; 43. a lifting mechanism; 44. a material clamping mechanism; 441. a material clamping plate; 442. a clamping jaw; 45. cleaning the plate; 451. cleaning the brush; 452. cleaning the air cylinder; 46. a nozzle assembly; 461. and (4) a nozzle. Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses rubber spare is automatic drawing of patterns system of unloading for injection molding production. Referring to fig. 1 and 2, an automatic demolding and discharging system for rubber part injection molding production comprises a frame 1, and an injection molding device 2, a demolding device 3 and a discharging device 4 which are arranged on the frame 1. The injection molding device 2 comprises an injection molding mechanism 21 and a molding mechanism 22, the injection molding mechanism 21 is connected with the molding mechanism 22, and the injection molding mechanism 21 is used for injecting materials into the molding mechanism 22 for curing molding. The molding mechanism 22 includes an upper mold 221, a middle mold 222 and a lower mold 223, the injection molding mechanism 21 is connected to the upper mold 221, the middle mold 222 is located between the upper mold 221 and the lower mold 223, the middle mold 222 is placed on the lower mold 223, and the lower mold 223 is slidably connected to the frame 1. The demolding device 3 is located on one side of the injection molding device 2, the demolding device 3 is used for demolding the injection molded part in the molding mechanism 22, and the discharging device 4 is used for taking the injection molded part after demolding out of the injection molding mechanism 21.

Referring to fig. 1 and 2, the frame 1 includes a base 11, an injection molding top frame 12, and a cantilever frame 13, the base 11 and the injection molding top frame 12 are fixed relatively, the cantilever frame 13 is located between the base 11 and the injection molding top frame 12, and a lower mold 223 is placed on the cantilever frame 13 and slidably connected to the cantilever frame 13. The injection molding device 2 is arranged on an injection molding top frame 12, and the demolding device 3 is arranged on a cantilever frame 13; a mold opening mechanism 14 is disposed between the base 11 and the cantilever frame 13, and the mold opening mechanism 14 is used for driving the cantilever frame 13 to move toward or away from the upper mold 221.

Referring to fig. 1 and 2, the cantilever mount 13 includes two horizontally disposed cantilevers 131 parallel to each other and a connecting arm 132 vertically welded and fixed between the two cantilevers 131. The mold opening mechanisms 14 are provided in two sets, and the mold opening mechanisms 14 correspond to the cantilevers 131 one by one. The mold opening mechanism 14 includes a plurality of guide pillars 141 and a mold opening driving element 142, in this embodiment, two guide pillars 141 are provided, the mold opening driving element 142 is a hydraulic cylinder, the mold opening driving element 142 is fixed on the machine base 11 through bolts, the two guide pillars 141 are vertically arranged between the machine base 11 and the injection top frame 12, one end of each guide pillar 141 is fixedly connected to the machine base 11, and the other end is fixedly connected to the injection top frame 12; the guide post 141 vertically penetrates through the cantilever 131, and the guide post 141 is slidably connected with the cantilever 131. The piston rod of the mold opening driving member 142 is connected to the corresponding cantilever 131 for driving the cantilever frame 13 to slide along the vertical direction. After the material is injection molded in the molding mechanism 22, the mold opening mechanism 14 is started, the mold opening driving member 142 drives the cantilever frame 13 to move in a direction away from the upper mold 221, and the cantilever frame 13 drives the lower mold 223 and the middle mold 222 to move downward and then separate from the upper mold 221, so as to open the mold of the molding mechanism 22, so as to facilitate the subsequent demolding and unloading of the injection molded part.

Referring to fig. 1 and 3, the demolding device 3 includes a traverse mechanism 31, a demolding mechanism 33, and a lifting mechanism 32, the traverse mechanism 31, the demolding mechanism 33, and the lifting mechanism 32 are all installed on the cantilever frame 13, an output end of the traverse mechanism 31 is connected with the lower mold 223, and the traverse mechanism 31 is used for driving the lower mold 223 to horizontally move in a direction away from or close to the demolding mechanism 33. The lifting mechanism 32 is used for lifting the middle mold 222 so as to separate the middle mold 222 from the lower mold 223; the ejector mechanism 33 is used to eject the injection-molded part from the intermediate mold 222.

Referring to fig. 1 and 2, the traverse mechanism 31 includes a traverse cylinder 311, a traverse link 312, and a reversing plate 313, the traverse cylinder 311 being mounted on the connecting arm 132, a piston rod of the traverse cylinder 311 being disposed in a direction away from the ejector mechanism 33, and a piston rod of the traverse cylinder 311 being connected to the reversing plate 313. Two traverse connecting rods 312 are arranged, the two traverse connecting rods 312 are vertically welded and fixed on one surface of the reversing plate 313 close to the traverse cylinder 311, and one end of the traverse connecting rod 312 far away from the reversing plate 313 is fixedly connected with the side wall of the lower die 223. When the lower die 223 is separated from the upper die 221, the traverse cylinder 311 drives the reversing plate 313 to move horizontally through the piston rod, then the reversing plate 313 drives the lower die 223 to slide on the cantilever frame 13 through the traverse connecting rod 312, the reversing plate 313 has a reversing effect on the arrangement of the traverse cylinder 311, the layout is more reasonable, and the occupied space of the traverse mechanism 31 is reduced.

Referring to fig. 3 and 4, the lifting mechanism 32 includes a lifting driving member 321 and two lifting fixture blocks 325, the lifting fixture blocks 325 correspond to the suspension arms 131, the two lifting fixture blocks 325 are located at two sides of the driving direction of the traversing mechanism 31, the middle mold 222 is integrally formed with the insert strip 224 on two side walls of the moving direction under the driving action of the traversing mechanism 31, the lifting fixture blocks 325 include a connecting block 326 and lifting blocks 327 welded at two ends of the connecting block 326, one end of the lifting fixture block 325, which is far away from the connecting block 326, is provided with lifting slots 328 into which the insert strip 224 is inserted, and the lifting driving member 321 is used for driving the lifting fixture blocks 325 to move along the vertical direction.

When the traversing mechanism 31 drives the lower die 223 to move towards the demolding mechanism 33, the middle die 222 moves synchronously with the lower die 223, the insertion strips 224 on two sides of the middle die 222 are inserted into the lifting insertion slots 328 of the corresponding lifting blocks 327, then the lifting driving piece 321 drives the lifting fixture blocks 325 to move upwards, and then the lifting fixture blocks 325 drive the middle die 222 to move upwards, so that the middle die 222 and the injection molding piece are separated from the lower die 223; subsequently, the traversing mechanism 31 is activated again to move the lower mold 223 to the starting position for subsequent demolding of the injection-molded part on the middle mold 222.

Referring to fig. 3 and 4, the cantilever mount 13 is fixed by welding to a driving mounting plate 133, and the driving mounting plate 133 is located between the two cantilevers 131 and on one side of the injection molding apparatus 2. The lifting driving member 321 comprises a lifting cylinder 322, a lifting connecting rod 323 and a lifting synchronizing frame 324, the lifting cylinder 322 is fixed in the middle of the bottom surface of the driving mounting plate 133 through bolts, a piston rod of the lifting cylinder 322 is arranged along the direction far away from the driving mounting plate 133, and one end of the piston rod of the lifting cylinder 322 far away from the driving mounting plate 133 is connected with the lifting synchronizing frame 324. In this embodiment, eight lifting connecting rods 323 are arranged, the lifting connecting rods 323 are symmetrically arranged at two ends of the lifting synchronization frame 324 in the length direction, and each cantilever 131 corresponds to four lifting connecting rods 323; one end of the lifting link 323 is vertically welded and fixed to the upper surface of the lifting synchronizer 324, and the other end passes through the cantilever 131 and is fixedly connected to the lifting latch 325.

The lifting cylinder 322 drives the lifting synchronous frame 324 to move in the vertical direction through the piston rod, the lifting synchronous frame 324 drives each lifting fixture block 325 to move through the lifting connecting rod 323, and then the lifting fixture blocks 325 drive the middle die 222 to move in the vertical direction through the lifting slots 328; to achieve lifting of the middle die 222; the lifting synchronization frame 324 enables the lifting dogs 325 at both sides of the middle mold 222 to perform synchronous lifting movement under the action of the lifting link 323, thereby improving the stability of the middle mold 222 during the lifting process.

Referring to fig. 3 and 5, in order to ensure the stability of the lifting fixture block 325 when lifting the cylinder 322, a clamping mechanism 34 is provided in the lifting block 327, the clamping mechanism 34 includes a contact block 341, a spring 342, and a clamping driving member 343, a mounting groove 344 is provided on an inner wall of the lifting slot 328 far from the middle mold 222, the contact block 341 is slidably connected in the mounting groove 344, a connecting groove is provided on an inner wall of the mounting groove 344, the spring 342 is located in the connecting groove, one end of the spring 342 is fixedly connected with the contact block 341, the other end is fixedly connected with the inner wall of the connecting groove, the spring 342 is used for applying a pulling force far from the middle mold 222 to the contact block 341, so that the contact block 341 retracts into the mounting groove 344, and the contact block 341 is an elastic block made of rubber. The clamping driving member 343 includes a driving post 3431, a first driving rod 3436, a second driving rod 3437 and a connecting shaft 3435, the first driving rod 3436 is located in the mounting groove 344, the first driving rod 3436 is located on a side of the abutting block 341 away from the middle mold 222, one end of the connecting shaft 3435 is vertically and fixedly connected to the first driving rod 3436, one end of the connecting shaft 3435 penetrates through the lifting block 327 and is vertically and fixedly connected to the second driving rod 3437, the second driving rod 3437 is located on an outer side of the lifting block 327, the second driving rod 3437 and the first driving rod 3436 are folded in half, and the first driving rod 3436 and the second driving rod 3437 are rotatably connected to the abutting block 341 through the connecting shaft 3435. The driving column 3431 is vertically disposed on one side of the second driving rod 3437 away from the abutting block 341, the driving column 3431 includes a thin section 3433 and a thick section 3432, the thick section 3432 is integrally formed on the top of the thin section 3433, the width of the thick section 3432 is greater than that of the thin section 3433, and a driving wedge 3434 is formed at the transition between the thick section 3432 and the thin section 3433 on one side close to the second driving rod 3437.

In the process of driving the middle mold 222 to move upward by the lifting fixture 325, the end of the second driving rod 3437 far from the abutting block 341 moves from the thin section 3433 of the driving post 3431 to the thick section 3432, the second driving rod 3437 rotates under the action of the driving wedge surface 3434, the second driving rod 3437 drives the first driving rod 3436 to rotate towards the direction close to the abutting block 341 through the connecting shaft 3435, the first driving rod 3436 abuts against the abutting block 341, the abutting block 341 moves towards the direction close to the middle mold 222 under the action of the first driving rod 3436, and then the abutting block 341 abuts against the insert 224, so as to clamp and fix the middle mold 222 and ensure the stability of the process of lifting the middle mold 222.

Referring to fig. 1 and 4, the demolding mechanism 33 includes a top plate 331, a plurality of demolding columns 332, and a demolding driving member 333, the top plate 331 is located between the two suspension arms 131, the plurality of demolding columns 332 are welded and fixed on an upper surface of the top plate 331, the middle mold 222 is formed with a plurality of injection molding through cavities 225, and the demolding columns 332 correspond to the injection molding through cavities 225. In this embodiment, two demolding driving members 333 are provided, and the demolding driving members 333 employ air cylinders; the two demolding driving members 333 are fixed to the bottom surface of the driving mounting plate 133 through bolts, the two demolding driving members 333 are symmetrically arranged on two sides of the lifting cylinder 322, a piston rod of the demolding driving member 333 penetrates through the driving plate and is fixedly connected with the bottom surface of the top plate 331, and then the demolding driving member 333 is used for driving the top plate 331 to move in the vertical direction.

When the middle mold 222 moves to the top of the top plate 331, the lower mold 223 returns to the position right below the upper mold 221 under the driving action of the traversing mechanism 31; subsequently, the demolding driving member 333 drives the top plate 331 to move towards the direction close to the middle mold 222, so that the demolding column 332 ejects the injection molding from the injection molding through cavity 225 of the middle mold 222, and the automatic demolding treatment of the injection molded part is realized, and the automation degree is high. In order to ensure the stability of the demolding driving member 333 when driving the top plate 331 to move, a plurality of demolding guide rods 334 are vertically welded and fixed on one surface of the top plate 331 close to the driving mounting plate 133, in this embodiment, four demolding guide rods 334 are provided, and four demolding guide rods 334 are provided at four corners of the top plate 331. One end of the demolding guide rod 334, which is far away from the top plate 331, penetrates through the driving mounting plate 133 and is connected with the driving mounting plate 133 in a sliding manner; so that the knockout guide 334 provides a good guide for the movement of the top plate 331 in the vertical direction.

Referring to fig. 4 and 6, the cantilever bracket 13 is further connected with an auxiliary lifting mechanism 3532, the auxiliary lifting mechanism 3532 includes two auxiliary driving members 351 and two auxiliary lifting plates 352, the two auxiliary lifting plates 352 correspond to the cantilevers 131, the auxiliary lifting plates 352 are located at two sides of the middle mold 222, and each auxiliary lifting plate 352 is located between the two lifting blocks 327 of the lifting block 325. The auxiliary driving member 351 includes two auxiliary cylinders 353, two auxiliary synchronizing frames 355 and a plurality of auxiliary connecting rods 354, the auxiliary cylinders 353 are in one-to-one correspondence to the auxiliary lifting plates 352, and the auxiliary cylinders 353 are fixed to the bottom surfaces of the corresponding cantilevers 131 by bolts. The piston rod of the auxiliary cylinder 353 penetrates the cantilever 131 and is fixedly connected with the corresponding auxiliary lifting plate 352. The auxiliary synchronizing frame 355 is horizontally disposed between the lifting synchronizing frame 324 and the driving mounting plate 133. In this embodiment, eight auxiliary connecting rods 354 are provided, the auxiliary connecting rods 354 are symmetrically disposed at two ends of the auxiliary synchronizing frame 355 in the length direction, one end of each auxiliary connecting rod 354 is vertically fixed on the auxiliary synchronizing frame 355, and the other end of each auxiliary connecting rod 354 penetrates through the cantilever 131 and is fixedly connected to the corresponding auxiliary lifting plate 352. The provision of the auxiliary lifting mechanism 3532 enables the knockout apparatus 3 to be adapted to the knockout process of the forming mechanism 22 having the double middle die 222, so as to improve the applicability of the knockout apparatus 3. The auxiliary lifting mechanism 3532 and the lifting mechanism 32 cooperate with each other to sequentially separate the double-layered middle mold 222 from the lower mold 223, and then the injection molded part needs to be manually removed from the middle mold 222 located relatively at the lower portion.

Referring to fig. 3 and 4, a support chassis 36 is horizontally arranged at the bottom of the lifting synchronization frame 324, two support links 37 are arranged between the support chassis 36 and the driving mounting plate 133, the support links 37 are located on one side of the jacking driving member away from the lifting cylinder 322, one end of each support link 37 is vertically and fixedly connected with the bottom surface of the driving mounting plate 133, and the other end of each support link 37 sequentially penetrates through the auxiliary synchronization frame 355 and the lifting synchronization frame 324 and then is fixedly connected with the support chassis 36.

Referring to fig. 1 and 7, a discharging support 41 is fixedly connected to one side of the injection top frame 12 close to the demolding device 3, the discharging device 4 is mounted on the discharging support 41, and the discharging device 4 comprises a lifting mechanism 43, a translation mechanism 42 and a clamping mechanism 44; the clamping mechanism 44 includes a material clamping plate 441 and a plurality of clamping jaws 442 mounted on the material clamping plate 441, the clamping jaws 442 are used for gripping the injection-molded part, in this embodiment, the clamping jaws 442 are parallel finger pneumatic jaws. The material clamping plate 441 is connected with the translation mechanism 42 through the lifting mechanism 43, and the lifting mechanism 43 and the translation mechanism 42 are driven by a conventional screw nut transmission mechanism, so that details are not described in this embodiment, and an output end of the lifting mechanism 43 is connected with the material clamping plate 441 and is used for driving the material clamping plate 441 to move in the vertical direction; the output end of the translation mechanism 42 is connected to the material clamping plate 441 through the lifting mechanism 43, and the translation mechanism 42 is used for driving the material clamping plate 441 to move horizontally along the driving direction parallel to the transverse moving mechanism 31.

After the injection molding piece is ejected out of the middle mold 222 by the demolding device 3, the unloading device 4 is started, the lifting mechanism 43 drives the material clamping mechanism 44 to move towards the direction close to the middle mold 222, the clamping jaw 442 grabs the injection molding piece, the lifting mechanism 43 drives the clamping jaw 442 to move upwards, so that the injection molding piece is completely separated from the middle mold 222, then, the translation mechanism 42 is started to drive the clamping jaw 442 to translate towards one side to the material receiving end, and then the clamping jaw 442 loosens the clamping effect on the injection molding piece, so that the injection molding piece is unloaded.

Referring to fig. 7 and 8, a cleaning plate 45 is connected to one side of the clamping plate 441 close to the clamping jaws 442, a cleaning cylinder 452 is connected to the clamping plate 441 by bolts, and a piston rod of the cleaning cylinder 452 penetrates through the clamping plate 441 to be connected with the cleaning plate 45 and is used for driving the cleaning plate 45 to move in the vertical direction. The cleaning brush 451 is adhered to the cleaning plate 45, the cleaning brush 451 is located on one side of the material clamping plate 441 close to the injection molding device 2, and the cleaning brush 451 extends and is arranged along a direction perpendicular to the driving direction of the translation mechanism 42. After the discharging device 4 finishes discharging the injection molding part, the material clamping plate 441 moves towards the upper surface close to the middle mold 222 under the action of the lifting mechanism 43 and the translation mechanism 42 until the cleaning brush 451 is abutted to the upper surface of the middle mold 222, then the translation mechanism 42 drives the material clamping plate 441 to move, and then the cleaning brush 451 can sweep the upper surface of the middle mold 222, so that the injection molding residues and the like on the surface of the middle mold 222 are cleaned, and the product quality of subsequent continuous injection molding production is guaranteed. Be provided with nozzle assembly 46 on the flitch 441, nozzle assembly 46 includes nozzle 461 and medicine case, and nozzle 461 is equipped with two, and two nozzles 461 are installed in the one side of clearance board 45 far away from clamping jaw 442, and nozzle 461 communicates with the medicine case through the pipeline, and nozzle 461 is used for spraying the release agent to well mould 222 surface. After the injection molding part is unloaded, the translation mechanism 42 drives the material clamping plate 441 to sweep from the upper part of the middle mold 222, and the nozzle 461 sprays the release agent on the upper surface of the middle mold 222, so that the injection molding part can be conveniently subjected to demolding treatment in the subsequent injection molding production.

The embodiment of the application provides an implementation principle of automatic demoulding and discharging system for rubber part injection molding production as follows: after the material is injection molded by the injection molding device 2, the mold opening mechanism 14 is started, the mold opening driving member 142 drives the cantilever frame 13 to move in a direction away from the upper mold 221, and the cantilever frame 13 drives the lower mold 223 and the middle mold 222 to move downward and then separate from the upper mold 221. The transverse moving mechanism 31 drives the lower die 223 and the middle die 222 to move to the demolding mechanism 33; in this process, the insert 224 of the middle mold 222 is inserted into the lift slot 328 of the lift clip 325. The lifting driving member 321 is activated, and the lifting driving member 321 drives the middle mold 222 to move upwards so that the middle mold 222 is separated from the lower mold 223. Subsequently, the traverse mechanism 31 moves the lower mold 223 to the bottom of the upper mold 221, and the lift mechanism 32 lowers the middle mold 222 to the initial position. The demolding driving member 333 drives the top plate 331 to move towards the direction close to the middle mold 222, so that the demolding columns 332 eject the injection molding piece out of the injection molding through cavity 225 of the middle mold 222, and automatic demolding treatment of the injection molding piece is achieved.

The discharging device 4 is started, the lifting mechanism 43 drives the clamping mechanism 44 to move towards the direction close to the middle mold 222, after the clamping jaw 442 grabs the injection molding part, the lifting mechanism 43 drives the clamping jaw 442 to move upwards, so that the injection molding part is completely separated from the middle mold 222, then, the translation mechanism 42 is started, the clamping jaw 442 is driven to translate towards one side to the material receiving end, and then the clamping jaw 442 loosens the clamping effect on the injection molding part, so that the injection molding part is discharged. After the discharging device 4 finishes discharging the injection molded part, the material clamping plate 441 moves towards the upper surface close to the middle mold 222 under the action of the lifting mechanism 43 and the translation mechanism 42 until the cleaning brush 451 abuts against the upper surface of the middle mold 222, then, the translation mechanism 42 drives the material clamping plate 441 to move, and then the cleaning brush 451 can sweep the upper surface of the middle mold 222, so that the injection molding residues and the like on the surface of the middle mold 222 are removed. Thereafter, the clamping plate 441 is swept again over the middle mold 222 under the combined action of the lifting mechanism 43 and the translation mechanism 42, and the nozzle 461 sprays a release agent on the upper surface of the middle mold 222 so as to facilitate the release treatment of the injection molded part in the subsequent injection molding production.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a rubber spare is automatic drawing of patterns system of unloading for injection molding production which characterized in that: the injection molding device comprises a rack (1), an injection molding device (2) and a demolding device (3), wherein the injection molding device (2) comprises an injection molding mechanism (21) and a forming mechanism (22), the forming mechanism (22) comprises an upper die (221), a middle die (222) and a lower die (223) which are matched with each other, the upper die (221) is connected with the injection molding mechanism (21), the middle die (222) is placed on the lower die (223), and the lower die (223) is in sliding connection with the rack (1); the demolding device (3) comprises a transverse moving mechanism (31), a demolding mechanism (33) and a lifting mechanism (32), the demolding mechanism (33) is located on one side of the injection molding device (2), the demolding mechanism (33) comprises a top plate (331), a plurality of demolding columns (332) arranged on the top plate (331) and a demolding driving piece (333), and the transverse moving mechanism (31) is used for driving the lower mold (223) to move towards the direction close to or far away from the top of the top plate (331); the lifting mechanism (32) is used for lifting the middle die (222) to separate the middle die (222) from the lower die (223); a plurality of injection molding through cavities (225) are formed in the middle mold (222), the demolding columns (332) correspond to the injection molding through cavities (225), the output end of the demolding driving piece (333) is connected with the top plate (331) and used for driving the top plate (331) to move towards the direction close to or away from the middle mold (222), and the demolding columns (332) are used for ejecting injection molded parts out of the injection molding through cavities (225).

2. The automatic demolding and discharging system for rubber part injection molding production according to claim 1, wherein: frame (1) is connected with drive mounting panel (133), drive mounting panel (133) are located the bottom of roof (331), drawing of patterns driving piece (333) set up on drive mounting panel (133), the one side that roof (331) are close to drive mounting panel (133) is connected with a plurality of drawing of patterns guide arm (334), drawing of patterns guide arm (334) are kept away from the one end of roof (331) and are worn to locate in drive mounting panel (133), and with drive mounting panel (133) sliding connection.

3. The automatic demolding and discharging system for rubber part injection molding production according to claim 2, characterized in that: lifting mechanism (32) are connected with frame (1), lifting mechanism (32) are including lifting driving piece (321) and lifting fixture block (325), lifting fixture block (325) are located well mould (222) moving direction's both sides, well mould (222) moving direction's both sides rigid coupling has cutting (224), set up on lifting fixture block (325) and supply cutting (224) to insert lifting slot (328) of establishing, the output and the lifting fixture block (325) of lifting driving piece (321) are connected, lifting driving piece (321) are used for driving lifting fixture block (325) and remove along the face direction of perpendicular to well mould (222).

4. The automatic demolding and discharging system for rubber part injection molding production according to claim 3, wherein: the lifting driving piece (321) comprises a lifting cylinder (322), a lifting connecting rod (323) and a lifting synchronous frame (324), the lifting cylinder (322) is arranged on one surface of the driving installation plate (133) far away from the top plate (331), a piston rod of the lifting cylinder (322) is connected with the lifting synchronous frame (324), one end of the lifting connecting rod (323) is connected with the lifting synchronous frame (324), and the other end of the lifting connecting rod (323) is connected with a lifting clamping block (325).

5. The automatic demolding and discharging system for rubber part injection molding production according to claim 2, characterized in that: frame (1) includes base (11), roof-rack (12) and cantilever boom (13) of moulding plastics, base (11) and roof-rack (12) relatively fixed of moulding plastics, cantilever boom (13) are located base (11) and mould plastics between roof-rack (12), lower mould (223) and cantilever boom (13) sliding connection, demoulding mechanism (33) and sideslip mechanism (31) are all installed on cantilever boom (13), be provided with die sinking mechanism (14) between base (11) and cantilever boom (13), die sinking mechanism (14) are used for driving cantilever boom (13) to the direction removal of being close to or keeping away from mould (221).

6. The automatic demolding and discharging system for rubber part injection molding production according to claim 5, wherein: the mold opening mechanism (14) comprises a mold opening driving piece (142) and a plurality of guide pillars (141), the guide pillars (141) are arranged between the injection molding top frame (12) and the machine base (11), two ends of the guide pillars (141) are fixedly connected with the injection molding top frame (12) and the machine base (11) respectively, the guide pillars (141) penetrate through the cantilever frame (13), the cantilever frame (13) is connected with the guide pillars (141) in a sliding mode, and the output end of the mold opening driving piece (142) is connected with the cantilever frame (13) and used for driving the cantilever frame (13) to slide axially along the guide pillars (141).

7. The automatic demolding and discharging system for rubber part injection molding production according to claim 5, wherein: the transverse moving mechanism (31) comprises a transverse moving cylinder (311), a transverse moving connecting rod (312) and a reversing plate (313), the transverse moving cylinder (311) is arranged on the cantilever frame (13), a piston rod of the transverse moving cylinder (311) is connected with the reversing plate (313), the transverse moving connecting rod (312) is arranged at one end, close to the transverse moving cylinder (311), of the reversing plate (313), and one end, far away from the reversing plate (313), of the transverse moving connecting rod (312) is connected with the lower die (223).

8. The automatic demolding and discharging system for rubber part injection molding production according to claim 5, wherein: the injection molding device is characterized by further comprising a discharging device (4), the discharging device (4) comprises a lifting mechanism (43), a translation mechanism (42) and a clamping mechanism (44), a discharging support (41) is fixedly connected to one side, close to the demolding device (3), of the injection molding top frame (12), the discharging device (4) is installed on the discharging support (41), the clamping mechanism (44) comprises a clamping plate (441) and a plurality of clamping jaws (442) arranged on the clamping plate (441), the clamping jaws (442) are located at the top of the middle mold (222), the clamping jaws (442) are used for grabbing injection molded parts, the output end of the lifting mechanism (43) is connected with the clamping plate (441) and used for driving the clamping plate (441) to move towards or away from the middle mold (222), and the output end of the translation mechanism (42) is connected with the clamping plate (441) and used for driving the clamping plate (441) to move along the direction parallel to the surface of the middle mold (222).

9. The automatic demolding and discharging system for rubber part injection molding production according to claim 8, wherein the automatic demolding and discharging system comprises: and one surface of the material clamping plate (441) close to the clamping jaw (442) is provided with cleaning brushes (451), and the cleaning brushes (451) are arranged along the driving direction vertical to the translation mechanism (42).

10. The automatic demolding and discharging system for rubber part injection molding production according to claim 9, wherein: the material clamping plate (441) is provided with a nozzle assembly (46), and the nozzle assembly (46) is used for spraying a release agent to the surface of the middle mold (222).