CN215203097U

CN215203097U - Vacuum injection molding transfer vulcanization molding structure of rubber injection machine

Info

Publication number: CN215203097U
Application number: CN202121264461.1U
Authority: CN
Inventors: 王桂秋; 周军; 刘华飞; 刘建森
Original assignee: DEKUMA RUBBER AND PLASTIC TECHNOLOGY (DONGGUAN) Ltd
Current assignee: DEKUMA RUBBER AND PLASTIC TECHNOLOGY (DONGGUAN) Ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-12-17
Anticipated expiration: 2031-06-07

Abstract

The utility model discloses a vacuum injection molding, transferring and vulcanizing molding structure of a rubber injection machine, which comprises a lower mold supporting frame and an upper hanging mold supporting frame arranged on the lower mold supporting frame, wherein the upper hanging mold supporting frame is provided with a feeding component, a plasticizing component, an injection component and a material storage component, and the plasticizing component and the injection component are used for injecting the plasticized rubber material in the feeding component into the material storage component for molding and vulcanizing molding; the upper lifting die support is provided with a lifting oil cylinder and a vacuum cover, the lifting oil cylinder controls the vacuum cover to perform lifting motion towards the lower die supporting support along the vertical direction, and the vacuum cover is attached to the lower die supporting support to form a closed space. In this way, the utility model provides a rubber injection machine mould pressing vulcanizes shaping structure establishes through the vacuum hood cover and forms inclosed vacuum environment on the die-supporting support down, carries through the injection after in vacuum environment and utilizes compound die power mould pressing to shift the injection and vulcanize the shaping with the sizing material.

Description

Vacuum injection molding transfer vulcanization molding structure of rubber injection machine

Technical Field

The utility model belongs to the technical field of the rubber injection moulding vulcanizer and specifically relates to a rubber injection machine recycles mode locking power transfer injection vulcanization molding structure under vacuum environment earlier under injection.

Background

The existing applied mould pressing transfer vulcanization forming structure; the machine stops working, rubber materials are filled in the material storage cavity manually, after the die is closed, the die closing force is used for pressing and injecting the rubber materials into the die by the pressing and injecting head under the environment without vacuumizing, the machine stops when limited rubber materials in the material cavity are completely pressed and injected, the rubber materials are filled repeatedly, products formed by each die need to be taken out of the die after the die is integrally moved out of the die closing structure by the die moving mechanism, and the upper die plate is not beneficial to increasing the heating function. The disadvantages of the mould pressing transfer vulcanization forming structure in the prior art are that: rubber products are air-entrained, the labor intensity of manual operation is high, the time investment is large, the product quality is unstable, and the heat loss is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rubber injection machine mould pressing vulcanization molding structure establishes through the vacuum cover and forms inclosed vacuum environment on the die-supporting support down, vulcanizes the shaping through the compound die power with the sizing material mould pressing in vacuum environment.

In order to solve the technical problem, the utility model provides a technical scheme is: a mould pressing vulcanization molding structure of a rubber injection machine comprises a lower mould supporting bracket and an upper mould hanging bracket arranged on the lower mould supporting bracket, wherein a feeding assembly, a plasticizing assembly, an injection assembly and a material storage assembly are arranged on the upper mould hanging bracket, and the plasticizing assembly and the injection assembly are used for plasticizing a rubber material in the feeding assembly and then injecting the plasticized rubber material into the material storage assembly for mould pressing vulcanization molding; the mold lifting device is characterized in that the upper lifting mold support is provided with a lifting oil cylinder and a vacuum cover, the lifting oil cylinder controls the vacuum cover to move up and down towards the lower mold supporting support along the vertical direction, the lower mold supporting support is attached to the vacuum cover to form a closed space, rubber materials are injected into the material storage assembly in the vacuum cover, and the rubber materials in the material storage assembly are transferred, injected and vulcanized to be molded by utilizing mold locking force.

The above technical scheme is adopted in the utility model, inside the sizing material got into the plastify subassembly through the feeding subassembly, the sizing material after the plastify carried to storage subassembly through the injection subassembly and carries out the mould pressing vulcanization shaping, and in the mould pressing vulcanization shaping in-process, the vacuum cover passes through the lift cylinder drive, and the decline forms inclosed space on holding in the palm the mould support down, forms the vacuum environment in this space, and the compression molding of guarantee sizing material is effectual.

Further, storage subassembly includes cope match-plate pattern, storage cavity and notes pressure head, hang mould support bottom on the cope match-plate pattern is located, on the cope match-plate pattern was located to the storage cavity, annotate the pressure head and locate storage cavity top and communicate with injection subassembly's nozzle. The nozzle of the injection assembly is used for injecting the rubber compound to the injection head, and the rubber compound passes through the injection head to reach the storage cavity.

Further, a gate is formed between the injection head and the nozzle. The rubber material is injected from the nozzle of the injection assembly and continuously enters the material storage cavity through the pouring gate and the injection head.

Further, a plurality of sizing material injection heads are arranged at the bottom of the material storage cavity. The sizing material output from the plurality of sizing material spray heads enters

Further, the hot plate assembly comprises an upper hot plate and a lower hot plate, the upper hot plate and the lower hot plate are respectively arranged on the outer side surfaces of the upper template and the lower template, and a middle template is arranged between the upper template and the lower template. The upper template, the middle template and the lower template are combined to form a mold, and mold closing force is applied to the mold to carry out compression molding on the sizing material flowing into the mold; the upper hot plate and the lower hot plate are used for heating, heat is transferred to the middle template from the upper template and the lower template, rubber materials are heated, the flowability of the rubber materials is improved, and the plasticizing effect of the rubber materials is improved.

Furthermore, a die assembly oil cylinder is arranged on the lower die supporting bracket and used for controlling the lifting action of the lower die plate. And a piston rod of the die assembly oil cylinder is connected with the lower template to control the lower template to ascend and displace, so that the die and the storage cavity extrude the injection press head, and the rubber material in the storage cavity is extruded and formed.

Furthermore, a gear guide rail is arranged on the lower die supporting bracket, a movable support rod connected with a gear on the end part is arranged on the gear guide rail, and the movable support rod is connected with the vacuum cover. The vacuum cover is connected with the movable supporting rod and is matched with the gear at the end part of the movable supporting rod through the gear guide rail, so that the lifting motion of the vacuum cover is more stable.

Further, an upper mold column is arranged on the upper lifting mold support, and the material storage assembly is fixed on the upper mold column.

Furthermore, the injection assembly comprises an injection charging barrel and an injection oil cylinder, the injection oil cylinder is arranged on the upper hanging die support, the bottom of the injection charging barrel is provided with a nozzle, and the top of the injection charging barrel is communicated with an inner cavity of the plasticizing assembly.

Further, the plasticizing component comprises a plasticizing charging barrel and a plunger, the plasticizing charging barrel is communicated with the feeding component and the injection component respectively, and the plunger is arranged in the plasticizing charging barrel and connected with the injection oil cylinder. The injection oil cylinder is used for driving the plunger piston to move downwards to complete the injection function.

The utility model discloses the beneficial effect who gains is: the vacuum plasticizing injection molding machine has the advantages of good working performance, stable product quality, safety and continuous work, strong adaptability and universality, solves the problems of air inclusion of products, no heating function of the mold and energy loss caused by manual filling of rubber materials in the prior art, has novel structure, can pump vacuum to ensure that the plasticizing injection rubber materials are in a vacuum environment and transfer and press-inject the rubber materials into the mold through strong mold closing force for vulcanization molding, ensures the product quality and does not generate air inclusion of products; and the back of the upper template and the back of the lower template can be heated through the upper hot plate and the lower hot plate, the rubber material in the die is heated, the fluidity of the rubber material is improved, and the plasticizing vulcanization molding effect is guaranteed.

Drawings

Fig. 1 is a schematic exploded view of the present invention;

fig. 2 is a schematic view of the assembly structure of the present invention;

fig. 3 is a schematic sectional structure of the present invention;

FIG. 4 is an enlarged view of a portion of the structure of the present invention;

FIG. 5 is an enlarged view of a portion of the injection assembly and plasticizing assembly of the present invention;

FIG. 6 is an enlarged view of a portion of the structure of the present invention shown in FIG. 3;

fig. 7 is a schematic view of the sectional structure of the magazine assembly of the present invention.

Description of reference numerals: the device comprises a lower die supporting bracket 1, a 11 hot plate component, a 111 upper hot plate, a 112 lower hot plate, a 12 die closing oil cylinder, a 13 gear guide rail, a 14 gear, a 15 movable support rod, a 2 upper die lifting bracket, a 201 lifting oil cylinder, a 202 vacuum cover, a 21 feeding component, a 22 plasticizing component, a 221 plasticizing material cylinder, a 222 plunger, a 23 injection component, a 231 nozzle, a 232 sprue, a 233 injection material cylinder, a 234 injection oil cylinder, a 24 material storage component, a 241 upper die plate, a 242 lower die plate, a 243 material storage cavity, a 244 injection head, a 245 middle die plate, a 246 sizing material injection head and a 25 upper die column.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 7, a rubber injection machine molding vulcanization molding structure includes a lower mold supporting bracket 1 and an upper mold supporting bracket 2 arranged on the lower mold supporting bracket 1, the upper mold supporting bracket 2 is provided with a feeding component 21, a plasticizing component 22, an injection component 23 and a material storage component 24, and the plasticizing component 22 and the injection component 23 are used for injecting rubber material in the feeding component 21 into the material storage component 24 after plasticizing for molding through compression vulcanization; the upper lifting die support 2 is provided with a lifting oil cylinder 201 and a vacuum cover 202, the lifting oil cylinder 201 controls the vacuum cover 202 to perform lifting movement towards the lower die support 1 along the vertical direction, the vacuum cover 202 is attached to the lower die support 1 to form a closed space, rubber materials are injected into the material storage assembly 24 in the vacuum cover 202, and the rubber materials in the material storage assembly 24 are transferred by using a die locking force to be injected and vulcanized for forming.

The storing assembly 24 comprises an upper template 241, a storing cavity 243 and an injection head 244, wherein the upper template 241 is arranged at the bottom of the upper hanging mold support 2, the storing cavity 243 is arranged on the upper template 241, and the injection head 244 is arranged above the storing cavity 243 and is communicated with the nozzle 231 of the injection assembly 23.

A gate 232 is formed between the injection head 244 and the nozzle 231.

A plurality of size material spray heads 246 are disposed at the bottom of the material storage chamber 243.

The hot plate assembly 11 comprises an upper hot plate 111 and a lower hot plate 112, the upper hot plate 111 and the lower hot plate 112 are respectively arranged on the outer side surfaces of the upper template 241 and the lower template 242, and a middle template 245 is arranged between the upper template 241 and the lower template 242.

The lower die supporting bracket 1 is provided with a die closing oil cylinder 12, and the die closing oil cylinder 12 is used for controlling the lifting action of the lower die plate 242.

The lower die supporting bracket 1 is provided with a gear guide rail 13, the gear guide rail 13 is provided with a movable support rod 15 connected with a gear 14 on the end part, and the movable support rod 15 is connected with a vacuum cover 202.

An upper mold column 25 is arranged on the upper lifting mold support 2, and the material storage component 24 is fixed on the upper mold column 25.

The injection assembly 23 comprises an injection cylinder 233 and an injection cylinder 234, the injection cylinder 234 is arranged on the upper suspension mold frame 2, the bottom of the injection cylinder 233 is provided with a nozzle 231, and the top is communicated with the inner cavity of the plasticizing assembly 22.

The plasticizing assembly 22 comprises a plasticizing cylinder 221 and a plunger 222, the plasticizing cylinder 221 is respectively communicated with the feeding assembly 21 and the injection assembly 23, and the plunger 222 is arranged in the plasticizing cylinder 221 and connected with the injection cylinder 234.

The utility model discloses at the during operation, earlier in the rain-proof feeding component 21 of strip sizing material batching disc sizing material, introduce the strip sizing material in plasticization subassembly 22, plasticization subassembly 22 constantly eats gluey plastify sizing material (the plastify indicates that plastics reach the flow state and have the overall process of good plasticity at feed cylinder internal diameter heating), then pour into injection feed cylinder 233 of injection subassembly 23 with the sizing material that plasticizes, because of the increase of the sizing material in injection feed cylinder 233, make plasticization subassembly 22 and injection cylinder 234 lifting, when detecting certain lifting height, injection cylinder 234 moves, plunger 222 downstream in the drive plastify feed cylinder 221, accomplish the function of injection with the sizing material output.

The nozzle 231 of the injection assembly 23 is in contact and communication with the gate 232 of the storage assembly 24, and the rubber compound injected from the injection cylinder 233 passes through the gate 232 and the injection ram 244, and reaches the storage cavity 243 continuously, wherein the volume of the storage cavity 243 is larger than that of the injection cylinder 233, and the storage cavity 243 can reach the designed volume through multiple plasticizing injections. The mold closing cylinder 12 pushes the lower template 242 to ascend, so that the upper template 241, the middle template 245 and the lower template 242 are closed, the vacuum cover 202 is downwards displaced along the upper mold column 25 under the action of the lifting cylinder 201 and is attached to the lower template 242 to form a closed space, and the interior of the vacuum cover 202 can be vacuumized by connecting a vacuum pump.

In a vacuum environment, the mold closing oil cylinder 12 continues to push the lower template 242 to move upwards, so that the injection head 244 is extruded by the molds formed by the upper template 241, the middle template 245 and the lower template 242 and the storage cavity 243, the rubber in the storage cavity 243 is injected into the cavities of the molds formed by the upper template 241, the middle template 245 and the lower template 242 through high-pressure extrusion along the plurality of rubber injection heads 246, the rubber is combined with the workpieces in the cavities, and vulcanization molding is performed at a certain temperature, pressure and time; the mold can be opened after the product in the mold reaches a preset vulcanization effect, the vacuum environment in the vacuum cover 202 is firstly decompressed, the vacuum cover 202 is opened after the internal and external pressures are balanced, the lower template 242 moves downwards, and the lower mold supporting bracket 1 lifts the middle template 245 as required to demould the product after vulcanization molding.

In summary, the present invention has been made to practical samples according to the description and the drawings, and after a plurality of use tests, the utility model can be proved to achieve the expected purpose, and the practical value is undoubted. The above-mentioned embodiments are only used to conveniently illustrate the present invention, and are not to the limit of the present invention in any form, and any person who knows commonly in the technical field has, if not in the scope of the technical features of the present invention, utilize the present invention to make the equivalent embodiment of local change or modification, and not to break away from the technical features of the present invention, and all still belong to the technical features of the present invention.

Claims

1. A vacuum injection molding, transferring and vulcanizing molding structure of a rubber injection machine comprises a lower supporting mold support (1) and an upper hanging mold support (2) arranged on the lower supporting mold support (1), wherein a feeding assembly (21), a plasticizing assembly (22), an injection assembly (23) and a material storage assembly (24) are arranged on the upper hanging mold support (2), and the plasticizing assembly (22) and the injection assembly (23) are used for plasticizing a rubber material in the feeding assembly (21) and injecting the plasticized rubber material into the material storage assembly (24) for molding through compression vulcanization; the method is characterized in that: the mold lifting device is characterized in that the upper lifting mold support (2) is provided with a lifting oil cylinder (201) and a vacuum cover (202), the lifting oil cylinder (201) controls the vacuum cover (202) to move up and down along the direction of the lower mold supporting support (1) in the vertical direction, the vacuum cover (202) is attached to the lower mold supporting support (1) to form a closed space, rubber is injected into the material storage assembly (24) in the vacuum cover (202), and the rubber in the material storage assembly (24) is transferred by using mold locking force to be subjected to injection vulcanization molding.

2. The rubber injection machine vacuum injection molding transfer vulcanization molding structure of claim 1, characterized in that: storage subassembly (24) include cope match-plate pattern (241), storage cavity (243) and injection pressure head (244), hang mould support (2) bottom on upper ledge mould (241) is located, on cope match-plate pattern (241) was located in storage cavity (243), injection pressure head (244) were located storage cavity (243) top and were communicate with nozzle (231) of injection subassembly (23).

3. The rubber injection machine vacuum injection molding transfer vulcanization molding structure of claim 2, characterized in that: a gate (232) is formed between the injection head (244) and the nozzle (231).

4. The rubber injection machine vacuum injection molding transfer vulcanization molding structure of claim 2, characterized in that: the bottom of the material storage cavity (243) is provided with a plurality of sizing material spraying heads (246).

5. The rubber injection machine vacuum injection molding transfer vulcanization molding structure of claim 2, characterized in that: the hot plate assembly (11) comprises an upper hot plate (111) and a lower hot plate (112), the upper hot plate (111) and the lower hot plate (112) are respectively arranged on the outer side surfaces of the upper template (241) and the lower template (242), and a middle template (245) is arranged between the upper template (241) and the lower template (242).

6. The rubber injection machine vacuum injection molding transfer vulcanization molding structure of claim 5, characterized in that: and a die closing oil cylinder (12) is arranged on the lower die supporting bracket (1), and the die closing oil cylinder (12) is used for controlling the lifting action of the lower die plate (242).

7. The rubber injection machine vacuum injection molding transfer vulcanization molding structure of claim 1, characterized in that: the lower die supporting bracket (1) is provided with a gear guide rail (13), the gear guide rail (13) is provided with a movable support rod (15) connected with a gear (14) on the end part, and the movable support rod (15) is connected with a vacuum cover (202).

8. The rubber injection machine vacuum injection molding transfer vulcanization molding structure of claim 1, characterized in that: the upper die column (25) is arranged on the upper die lifting support (2), and the material storage assembly (24) is fixed on the upper die column (25).

9. The rubber injection machine vacuum injection molding transfer vulcanization molding structure of claim 1, characterized in that: the injection assembly (23) comprises an injection material barrel (233) and an injection oil cylinder (234), the injection oil cylinder (234) is arranged on the upper suspension mold support (2), the bottom of the injection material barrel (233) is provided with a nozzle (231), and the top of the injection material barrel is communicated with an inner cavity of the plasticizing assembly (22).

10. The rubber injection molding, transfer molding, vulcanization molding structure of claim 8, wherein: the plasticizing component (22) comprises a plasticizing cylinder (221) and a plunger (222), the plasticizing cylinder (221) is communicated with the feeding component (21) and the injection component (23) respectively, and the plunger (222) is arranged in the plasticizing cylinder (221) and connected with the injection oil cylinder (234).