CN216442917U

CN216442917U - Steam compression molding machine

Info

Publication number: CN216442917U
Application number: CN202122841342.4U
Authority: CN
Inventors: 张玉青; 顾倩倩; 张尊杰
Original assignee: Suzhou Mahayana Environmental Protection New Material Co ltd
Current assignee: Suzhou Mahayana Environmental Protection New Material Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-05-06
Anticipated expiration: 2031-11-18

Abstract

The utility model relates to a steam compression molding machine relates to compression molding technical field, which comprises a frame, slide and set up the cope match-plate pattern in the frame, set up in the frame and be located the lower bolster of cope match-plate pattern below, be equipped with the driving piece that the drive cope match-plate pattern slided down in the frame, the die cavity that supplies plastics or resin granule to put into is seted up to the lower bolster, the cope match-plate pattern diapire is equipped with and stretches into the die cavity to plastics or resin granule extrusion's shaping flange, be equipped with a plurality of steam inlets on the cope match-plate pattern, steam inlet runs through cope match-plate pattern to the die cavity in. This application is through setting up steam inlet and shaping flange, utilizes steam inlet to supply high temperature steam to heat plastics or resin in getting into the die cavity to the shaping under the extrusion of shaping flange realizes heating and pressurization and goes on in step, thereby has the advantage that improves plastics or resin extrusion efficiency.

Description

Steam compression molding machine

Technical Field

The application relates to the technical field of compression molding, in particular to a steam compression molding machine.

Background

At present, in the production process of plastics or resin, the plastics or resin needs to be melted at high temperature and pressurized for shaping, so that fine particles of the plastics or resin are rapidly shaped in a high-temperature and high-pressure environment after being melted until being cooled and shaped.

When a traditional steam compression molding machine is used for extruding and molding granular plastic or resin, a movable heater is used for heating the plastic or resin, the heater is removed after the temperature reaches a required temperature, and a press is used for closing two molds and applying pressure to shape the molten plastic or resin. Cooling, demoulding and trimming to obtain the finished product.

For the above-described related art, the inventors consider that: when carrying out high temperature heating to plastics or resin, it is comparatively troublesome additionally to adopt the heater heating for the extrusion efficiency of plastics or resin material is lower.

SUMMERY OF THE UTILITY MODEL

In order to improve the efficiency of plastic or resin extrusion molding, the application aims to provide a steam extrusion molding machine.

The application provides a steam compression molding machine adopts following technical scheme:

a steam compression molding machine comprises a rack, an upper template and a lower template, wherein the upper template is arranged in the rack in a sliding mode, the lower template is arranged in the rack and located below the upper template, a driving piece for driving the upper template to slide downwards is arranged on the rack, a mold cavity for plastic or resin particles to be placed into is formed in the lower template, a molding convex plate stretching into the mold cavity to extrude the plastic or resin particles is arranged on the bottom wall of the upper template, a plurality of steam inlets are formed in the upper template, and the steam inlets penetrate through the upper template and into the mold cavity.

Through adopting above-mentioned technical scheme, when putting into the die cavity with graininess plastics or resin, start the driving piece, drive the cope match-plate pattern gliding to make the shaping flange on the lower bolster stretch into in the die cavity. Until cope match-plate pattern and lower bolster butt each other, then import steam from the steam import for the entering of steam heats up granular plastics and resin, and the driving piece drives the cope match-plate pattern simultaneously and continues the gliding, so that the gliding of shaping relief block extrudes plastics or resin, with plastics and resin extrusion. Therefore, by arranging the steam inlet and the forming convex plate, high-temperature steam is supplied to the die cavity by the steam inlet to heat the plastic or resin, and the plastic or resin is formed under the extrusion of the forming convex plate, so that the heating and the pressurization are synchronously performed, and the efficiency of plastic or resin extrusion forming is improved.

Optionally, a steam cavity for communicating the steam inlet is formed in the upper template, and a plurality of steam holes communicated with the steam cavity are formed in the bottom wall of the forming convex plate.

Through adopting above-mentioned technical scheme, when heating the plastics and the resin in the die cavity, high-temperature steam gets into the steam chamber from steam inlet for in the steam chamber is full of even filling to the die cavity from the steam hole after the steam chamber, with to melting plastics and resin high temperature in the lower bolster, thereby be convenient for steam in even afferent lower bolster behind the cope match-plate pattern.

Optionally, a sealing strip is embedded in the top wall of the lower template around the die cavity.

Through adopting above-mentioned technical scheme, when driving piece drove cope match-plate pattern and lower bolster looks butt, high-temperature steam gets into the die cavity in, and the sealing strip is sealed with the space between cope match-plate pattern and the lower bolster simultaneously, and the heat that reduces steam spills in the gap between cope match-plate pattern and the lower bolster.

Optionally, the driving member includes a stroke-adjustable cylinder fixedly connected to the top wall of the frame, and a cylinder shaft of the stroke-adjustable cylinder slidably penetrates through the frame and is fixedly connected to the upper die plate.

Through adopting above-mentioned technical scheme, when the drive cope match-plate pattern gliding, the cylinder shaft extension of the adjustable cylinder of stroke to drive cope match-plate pattern gliding and lower bolster be close to, stretch into the die cavity until the shaping flange, cope match-plate pattern and lower bolster butt, thereby be convenient for the cope match-plate pattern glide down the journey push down, go up the drawing of patterns that the slip becomes.

Optionally, an air inlet control valve for controlling the air inflow of the steam inlet is arranged on the frame, an air outlet of the air inlet control valve is communicated with an air inlet pipe, and one end, far away from the air inlet control valve, of the air inlet pipe is communicated with the steam inlet.

Through adopting above-mentioned technical scheme, when letting in high temperature steam in the cope match-plate pattern from steam inlet, through adjusting into the air control valve to adjust the steam flow that gets into, and make the steam behind the regulation flow inflow steam inlet behind the intake pipe, so that the cope match-plate pattern heats up to melt to the plastics or the resin that the temperature requirement is different.

Optionally, a guide pillar is arranged on the frame, the guide pillar penetrates through the upper die plate, and the upper die plate is connected with the guide pillar in a sliding manner.

Through adopting above-mentioned technical scheme, when the adjustable cylinder drive cope match-plate pattern of stroke slided for the cope match-plate pattern slides from top to bottom along the guide pillar, so as to lead the sliding of cope match-plate pattern, thereby improves the stability that the cope match-plate pattern is close to or keeps away from the lower bolster.

Optionally, a guide sleeve which is slidably sleeved on the guide pillar is arranged in the upper template.

Through adopting above-mentioned technical scheme, when the cope match-plate pattern slided along the guide pillar, drive the guide pin bushing and slide along the guide pillar to make the cope match-plate pattern slide on the guide pillar through leading the cunning, reduce the damage that the direct sliding contact guide pillar of cope match-plate pattern received.

Optionally, a supporting block for supporting the lower template is arranged at the bottom of the frame, an exhaust port communicated with the die cavity is arranged at the bottom of the lower template, and an air pressure check valve is arranged in the exhaust port.

Through adopting above-mentioned technical scheme, when cope match-plate pattern and lower bolster butt, high temperature steam is leading-in from steam inlet for atmospheric pressure increase, the temperature rise in the die cavity to carry out high temperature to plastics and resin in the die cavity and melt and extrude. And when the air pressure in the die cavity reaches a preset value, opening an air pressure one-way valve of the air outlet to release the air pressure in the die cavity, and extruding and forming the plastic or the resin so as to facilitate demoulding after the air pressure in the die cavity is reduced.

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

by arranging the steam inlet and the forming convex plate, high-temperature steam is supplied into the die cavity by the steam inlet to heat the plastic or resin, and the plastic or resin is formed under the extrusion of the forming convex plate, so that the heating and the pressurization are synchronously carried out, and the efficiency of plastic or resin extrusion forming is improved;

through the arrangement of the steam cavity and the steam holes, the steam cavity is filled with steam and then is uniformly filled into the die cavity from the steam holes so as to melt the plastic and the resin in the lower template at high temperature, so that the steam is uniformly transmitted into the lower template after passing through the upper template;

the air inlet control valve and the air inlet pipe are arranged, so that steam with the flow regulated flows into the steam inlet through the air inlet pipe, and the upper template can conveniently heat and melt plastics or resins with different temperature requirements;

through setting up tray and atmospheric pressure check valve, utilize the distance between tray increase lower bolster diapire and the frame to the atmospheric pressure of atmospheric pressure check valve in with the die cavity releases, plastics or resin all have extruded this moment, and the drawing of patterns after so that reduce the atmospheric pressure in the die cavity.

Drawings

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

Fig. 2 is a schematic cross-sectional view for showing a vapor chamber according to an embodiment of the present application.

Description of reference numerals: 1. a frame; 11. an upper fixing plate; 12. a lower side fixing plate; 121. a support block; 13. a guide post; 14. a stroke adjustable cylinder; 15. an air intake control valve; 151. an air inlet pipe; 2. mounting a template; 21. a guide sleeve; 22. forming a convex plate; 221. a steam vent; 23. a steam inlet; 24. a steam chamber; 3. a lower template; 31. a die cavity; 32. a sealing strip; 33. and (7) an exhaust port.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a steam compression molding machine.

Referring to fig. 1, the compression molding machine includes a frame 1, an upper mold plate 2 sliding in the frame 1, a lower mold plate 3 fixed in the frame 1 and located below the upper mold plate 2, and a driving member mounted on the frame 1 to drive the upper mold plate 2 to slide. The upper template 2 extends in the vertical direction in the frame 1, the bottom of the frame 1 is fixedly connected with a supporting block 121, and the supporting block 121 is fixedly connected with the bottom wall of the lower template 3, so that a space is reserved between the lower template 3 and the bottom of the frame 1.

Referring to fig. 1, the frame 1 includes an upper fixing plate 11, a guide post 13, and a lower fixing plate 12, wherein an upper end of the guide post 13 is fixedly connected to a bottom wall of the upper fixing plate 11, and a lower end of the guide post 13 is fixedly connected to a top wall of the lower fixing plate 12.

Referring to fig. 1, the guide post 13 penetrates the upper mold plate 2, a guide sleeve 21 for the guide post 13 to slide and penetrate is fixedly connected to the upper mold plate 2, the guide sleeve 21 reduces damage to the upper mold plate 2 after the upper mold plate directly slides and abuts against the guide post 13, and the upper mold plate 2 slides along the guide post 13 between the upper fixing plate 11 and the lower fixing plate 12.

Referring to fig. 1, the driving member includes a stroke adjustable cylinder 14 vertically fixed on the top wall of the upper fixing plate 11, and a cylinder shaft of the stroke adjustable cylinder 14 penetrates through the upper fixing plate 11 and is fixedly connected with the top wall of the upper die plate 2, so as to drive the upper die plate 2 to slide along the guide post 13 through the stroke adjustable cylinder 14.

Referring to fig. 2, 2 diapire fixedly connected with shaping flange 22 of cope match-plate pattern, set up the die cavity 31 that supplies graininess plastics and resin to put into on the 3 roof of lower bolster, it is equipped with sealing strip 32 to inlay around 31 a week of die cavity on the 3 roof of lower bolster to with the space between cope match-plate pattern 2 and the lower bolster 3 sealed, shaping flange 22 carries out extrusion to plastics and resin in sliding into the die cavity 31 simultaneously.

Referring to fig. 1 and 2, an air inlet control valve 15 located on one side of the lower template 3 is fixedly connected to the lower fixing plate 12, a plurality of steam inlets 23 are formed in the upper template 2, and an air outlet of the air inlet control valve 15 is communicated with an air inlet pipe 151 communicated with the steam inlets 23. In the embodiment of the present application, two steam inlets 23 are selected, and the two steam inlets 23 are respectively located at two sides of the cylinder shaft of the stroke-adjustable cylinder 14.

Referring to fig. 2, a steam cavity 24 communicated with the steam inlet 23 is formed in the upper template 2, and a plurality of steam holes 221 communicated with the steam cavity 24 are formed in the bottom wall of the forming convex plate 22, so that the flow of steam entering the steam inlet 23 is controlled by the air inlet control valve 15, steam flows into the die cavity 31 through the steam holes 221 after entering the steam cavity 24 from the steam inlet 23, the air pressure and the temperature in the die cavity 31 are increased, and the plastic and the resin in the die cavity 31 are melted after being subjected to high temperature and high pressure, so that the forming convex plate 22 is extruded and formed.

Referring to fig. 2, the bottom wall of the lower template 3 is provided with an exhaust port 33 communicated with the die cavity 31, an air pressure check valve is installed in the exhaust port 33, and the direction of the air pressure check valve is that the air in the die cavity 31 flows out of the lower template 3 from the exhaust port 33. When the air pressure in the cavity 31 reaches a preset value, the air pressure check valve of the air outlet 33 is opened to release the air pressure in the cavity 31.

The implementation principle of the steam compression molding machine in the embodiment of the application is as follows: when the granular plastic and the resin are extruded and molded, the granular plastic and the resin are placed into the die cavity 31, the stroke-adjustable cylinder 14 is started to drive the upper template 2 to slide downwards until the molding convex plate 22 slides into the die cavity 31, the upper template 2 is abutted against the lower template 3, and the sealing strip 32 seals a gap between the upper template 2 and the lower template 3. Then, the high-temperature steam is introduced into the steam inlet 23 after passing through the air inlet control valve 15, so that the steam enters the steam cavity 24, and then the steam flows into the cavity 31 after passing through the steam holes 221, so as to increase the pressure and temperature in the cavity 31, so that the plastic and the resin are melted under high temperature and high pressure. The stroke-adjustable air cylinder 14 drives the upper template 2 to slide downwards, so that the forming convex plate 22 performs extrusion forming on the plastic or resin, until the plastic or resin is formed, the air pressure in the die cavity 31 is increased to a preset value, steam in the die cavity 31 is discharged from the air outlet 33 through the air pressure one-way valve, the upper template 2 and the lower template 3 are separated conveniently after the air pressure in the die cavity 31 is released, demolding is performed, heating and pressurizing are performed synchronously, and therefore the efficiency of plastic or resin extrusion forming is improved.

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. A steam compression molding machine is characterized in that: including frame (1), slide set up in cope match-plate pattern (2) in frame (1), set up in lower bolster (3) of cope match-plate pattern (2) below are located in frame (1), be equipped with the drive on frame (1) the driving piece that cope match-plate pattern (2) gliding, die cavity (31) that supply plastics or resin particle to put into are seted up in lower bolster (3), cope match-plate pattern (2) diapire is equipped with and stretches into die cavity (31) to plastics or resin particle extrusion's shaping flange (22), be equipped with a plurality of steam inlets (23) on cope match-plate pattern (2), steam inlet (23) run through in cope match-plate pattern (2) to die cavity (31).

2. The steam compression molding machine as claimed in claim 1, wherein: steam cavities (24) communicated with the steam inlets (23) are formed in the upper die plate (2), and a plurality of steam holes (221) communicated with the steam cavities (24) are formed in the bottom wall of the forming convex plate (22).

3. The steam compression molding machine as claimed in claim 1, wherein: and a sealing strip (32) is embedded in the top wall of the lower template (3) around the die cavity (31) in a circle.

4. The steam compression molding machine as claimed in claim 1, wherein: the driving piece comprises a stroke-adjustable air cylinder (14) fixedly connected to the top wall of the rack (1), and an air cylinder shaft of the stroke-adjustable air cylinder (14) penetrates through the rack (1) in a sliding mode and is fixedly connected to the upper die plate (2).

5. The steam compression molding machine as claimed in claim 1, wherein: the air inlet control valve (15) for controlling the air inflow of the steam inlet (23) is arranged on the rack (1), an air outlet of the air inlet control valve (15) is communicated with an air inlet pipe (151), and one end, far away from the air inlet control valve (15), of the air inlet pipe (151) is communicated with the steam inlet (23).

6. The steam compression molding machine as claimed in claim 1, wherein: the die is characterized in that a guide post (13) is arranged on the rack (1), the guide post (13) penetrates through the upper die plate (2), and the upper die plate (2) is connected with the guide post (13) in a sliding manner.

7. The steam compression molding machine as claimed in claim 6, wherein: a guide sleeve (21) which is sleeved on the guide post (13) in a sliding manner is arranged in the upper template (2).

8. The steam compression molding machine as claimed in claim 1, wherein: the die is characterized in that a supporting block (121) for supporting the lower template (3) is arranged at the bottom of the rack (1), an exhaust port (33) communicated with the die cavity (31) is formed in the bottom of the lower template (3), and an air pressure one-way valve is arranged in the exhaust port (33).