CN111572062B

CN111572062B - Movable thermal diaphragm vacuum bed

Info

Publication number: CN111572062B
Application number: CN202010472350.3A
Authority: CN
Inventors: 谈源; 谢刚; 唐海波
Original assignee: Changzhou New Intelligent Technology Co Ltd
Current assignee: Changzhou New Intelligent Technology Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-10-22
Anticipated expiration: 2040-05-29
Also published as: CN111572062A

Abstract

The invention relates to the technical field of thermal diaphragm forming, in particular to a movable thermal diaphragm vacuum bed, which comprises: a support; the vacuumizing platform is fixed at the top end of the support, is used for placing a forming die and prepreg and is provided with vacuumizing holes; the vacuum pump is fixed on the bracket and is communicated with the vacuumizing hole; the guide rail wheel is arranged at the bottom of the bracket; at least two rails are arranged in parallel, and the rail wheels can be arranged on the rails in a relatively movable manner; the movable driving piece is connected with the guide rail wheel and is used for driving the guide rail wheel to move on the track; the positioning plate is fixed on the track, is positioned at the position of the heating equipment and is provided with a positioning hole; the positioning driving piece is fixed at the bottom of the support, and moves towards the positioning hole when the support reaches a preset position, so that the driving end of the positioning driving piece is clamped in the positioning hole. The invention avoids the relative displacement between the prepreg and the forming die in the forming process and improves the forming quality of the product.

Description

Movable thermal diaphragm vacuum bed

Technical Field

The invention relates to the technical field of thermal diaphragm forming, in particular to a movable thermal diaphragm vacuum bed.

Background

The thermal diaphragm forming is a method for forming composite material, i.e. the presoaked composite material is laminated and then placed on a mould, and the laminated part is pressed on the mould by means of vacuum-pumping and heating under the auxiliary action of a special diaphragm to form the required shape.

In the prior art, a thermal diaphragm processing technology comprises a thermal diaphragm equipment platform for placing a thermal diaphragm tool and a pre-pumping technology platform, and during specific processing, a material sheet needs to be placed on the thermal diaphragm tool, the thermal diaphragm tool needs to be heated, a thermal diaphragm is laid, vacuum pumping and other technologies need to be carried out, and in the process, the thermal diaphragm tool needs to be moved from the thermal diaphragm equipment platform to the pre-pumping technology platform.

However, most of the thermal diaphragm tools are manually operated during moving, which may cause the tools to fall off, and may cause position variation between the material sheet and the thermal diaphragm tool, which finally affects the forming effect.

In view of the above problems, the designer is actively making research and innovation based on the practical experience and professional knowledge of the product engineering application for many years, so as to create a movable thermal diaphragm vacuum bed, which is more practical.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the movable thermal diaphragm vacuum bed is provided, and the movement of a thermal diaphragm tool in the thermal diaphragm forming process is reduced.

In order to achieve the purpose, the invention adopts the technical scheme that: a moveable thermal diaphragm vacuum bed comprising:

a support;

the vacuumizing platform is fixed at the top end of the support and used for placing a forming die and a prepreg, and vacuumizing holes are formed in the vacuumizing platform;

the vacuum pump is fixed on the bracket, is communicated with the vacuumizing hole on the vacuumizing platform and is used for vacuumizing;

the guide rail wheel is arranged at the bottom of the bracket and is used for moving the bracket;

at least two rails are arranged in parallel, and the guide rail wheels can be arranged on the rails in a relatively movable manner;

the movable driving part is connected with the guide rail wheel and is used for driving the guide rail wheel to move on the track;

the positioning plate is fixed on the track and is positioned at the position of the heating equipment, and a positioning hole is formed in the positioning plate;

and the positioning driving piece is fixed at the bottom of the support, and moves towards the positioning hole when the support reaches a preset position, so that the driving end of the positioning driving piece is clamped in the positioning hole.

Furthermore, the guide rail wheel is also provided with two auxiliary guide wheels, the two auxiliary guide wheels are arranged on two sides of the moving direction of the guide rail wheel, the radial direction of the auxiliary guide wheels is perpendicular to the radial direction of the guide rail wheel, the two auxiliary guide wheels are arranged oppositely, and the inner wall of each auxiliary guide wheel is in rolling contact with the side wall of the track.

Further, the track comprises a guide rail body and a bottom plate perpendicular to the guide rail body, the cross section of the guide rail body is of a rectangular structure, guide rail wheels are arranged on the guide rail body in a clamped mode, and the positioning plate is fixed to the bottom plate.

Furthermore, the positioning driving part is a pneumatic cylinder or a hydraulic cylinder, and a piston rod of the pneumatic cylinder or the hydraulic cylinder is arranged corresponding to the positioning hole in the positioning plate.

Furthermore, the movable driving part is a motor, and a rotating shaft of the motor is fixedly connected with the guide rail wheel so as to drive the guide rail wheel to rotate;

or the movable driving piece is of a motor screw rod structure, the screw rod is arranged in parallel with the track and is driven by a motor, and the bottom end of the bracket is provided with a fixed block meshed with the screw rod;

or the movable driving part is of a motor gear rack structure, wherein a rack is arranged in parallel with the track, the motor is fixed on the bracket, and a gear meshed with the rack is fixed at the top of the motor;

or, the movable driving part is in a chain wheel and chain structure or a synchronous belt structure.

Further, a heat insulation membrane frame is further stacked on the upper surface of the vacuum pumping platform, the bottom surface of the heat insulation membrane frame is in contact with the upper surface of the vacuum pumping platform, the upper surface and the side surface of the heat insulation membrane frame are used for wrapping the heat insulation membrane, a fixing groove is formed in the side surface of the heat insulation membrane frame, and the groove is used for being matched with the rubber strip to fix the heat insulation membrane.

Further, the upper surface of the vacuum pumping platform and the area contacted with the heat diaphragm frame are also provided with a sealing groove, a sealing gasket is arranged in the sealing groove, the sealing gasket comprises a hollow circular sealing gasket and a bar-shaped sealing gasket, and the bottom surface of the bar-shaped sealing gasket is tangent to the outer surface of the hollow circular sealing gasket.

Further, the outside of support still is provided with the locating part, the locating part includes fixed plate and riser, the riser with the fixed plate is connected, the fixed plate passes through the fastener to be fixed on the support, the riser is protruded in the direction of height the evacuation platform sets up, just the locating part sets up on four sides of support for spacing when placing the diaphragm frame.

The invention has the beneficial effects that: according to the invention, the vacuumizing platform is arranged on the movable support, so that the vacuumizing platform has the functions of placing a forming die and vacuumizing and forming, the support can be movably arranged through the guide rail wheels and the movable driving piece arranged on the support, the support can be conveniently and directly moved to the heating equipment for heating after the thermal diaphragm is fixed, the movable positioning of the support is more accurate through the arrangement of the positioning plate and the positioning driving piece, the heating effect is ensured, and the product quality is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a movable thermal diaphragm vacuum bed according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a rail wheel according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a track according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1 in accordance with an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a movable driving member according to an embodiment of the present invention;

FIG. 6 is an exploded schematic view of a vacuum bed in an embodiment of the present invention;

FIG. 7 is a schematic structural view of a heat shield frame according to an embodiment of the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 7 at C in accordance with an embodiment of the present invention;

FIG. 9 is a schematic structural view of a heat transfer membrane frame for fixing a heat transfer membrane according to an embodiment of the present invention;

FIG. 10 is a schematic view showing the structure of a gasket in the embodiment of the present invention;

FIG. 11 is a cross-sectional view taken along line D-D of FIG. 10 in accordance with an embodiment of the present invention;

fig. 12 is a partial enlarged view of fig. 6 at B in the embodiment of the present invention.

Reference numerals: 10. a support; 11. a limiting member; 111. a fixing plate; 112 vertical plates; 20. a vacuum pumping platform; 21. a sealing groove; 22. a gasket; 221. a hollow circular seal gasket; 222. a strip-shaped sealing gasket; 30. a vacuum pump; 40. a guide rail wheel; 50. a track; 51. a guide rail body; 52. a base plate; 60. moving the driving member; 70. positioning a plate; 80. positioning a driving piece; 90. a heat-insulating membrane frame; 91. and fixing the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The moveable thermal diaphragm vacuum bed as shown in fig. 1 to 12 comprises a support 10, a vacuum pumping platform 20, a vacuum pump 30, a rail wheel 40, a rail 50, a moving drive 60, a positioning plate 70 and a positioning drive 80, wherein:

the support 10 is formed by welding profiles for support and fixation.

The vacuumizing platform 20 is fixed at the top end of the support 10 and used for placing a forming die and prepreg, and vacuumizing holes are formed in the vacuumizing platform 20; the pin hole pumping platform has two functions of supporting and vacuumizing, and through the arrangement, the movement of a forming die in the prior art is avoided, and the consistency of product forming is improved.

The vacuum pump 30 is fixed on the bracket 10, is communicated with the vacuumizing hole on the vacuumizing platform 20 and is used for vacuumizing; the evacuation hole equipartition on the evacuation platform 20 has a plurality ofly, and vacuum pump 30 passes through the pipeline and connects with the evacuation jogged joint, through a vacuum pump 30, to a plurality of vacuum jogged joints simultaneously, has improved vacuum pump 30's utilization ratio on the one hand, and on the other hand also makes the fashioned uniformity of thermal diaphragm better.

The guide rail wheel 40 is arranged at the bottom of the bracket 10 and is used for moving the bracket 10; as shown in fig. 2, at least one sidewall of the guide wheel 40 is protruded from the surface of the wheel body to prevent the guide wheel 40 from derailing and improve the moving reliability.

At least two rails 50 are arranged in parallel, and the guide rail wheels 40 can be arranged on the rails 50 in a relatively movable manner; with continued reference to fig. 1, the relative movement is to guide the rail wheel 40 into rolling contact with the rail 50.

The movable driving member 60 is connected with the guide rail wheel 40 and is used for driving the guide rail wheel 40 to move on the track 50; the guide rail wheel 40 is driven to rotate by the movable driving piece 60, so that the whole support 10 is driven to move, wherein the movement refers to moving the support 10 to the lower part of the heating device, vacuumizing and heating the vacuumizing platform 20 wrapped with the thermal diaphragm, and further avoiding the movement of the forming die by moving the support 10; further, in order to improve the positioning reliability of the mobile bracket 10, the mobile bracket further comprises:

the positioning plate 70 is fixed on the track 50, the positioning plate 70 is located at the position of the heating equipment, and the positioning plate 70 is provided with a positioning hole;

the positioning driving member 80 is fixed at the bottom of the bracket 10, and when the bracket 10 reaches a predetermined position, the positioning driving member 80 moves towards the positioning hole, so that the driving end of the positioning driving member 80 is clamped in the positioning hole. Through the arrangement, the support 10 is stopped at a fixed position every time, so that the position accuracy of the vacuum bed during heating is improved, and the consistency of products is improved.

In the above embodiment, through setting up evacuation platform 20 on mobilizable support 10, make evacuation platform 20 have the function of placing forming die and evacuation shaping simultaneously, and through the guide rail wheel 40 and the removal driving piece 60 that set up on support 10, make support 10 portable setting, thereby be convenient for directly move support 10 to heating equipment after the thermal diaphragm is fixed to be accomplished heats, setting through locating plate 70 and location driving piece 80, make the location that support 10 removed more accurate, thereby guarantee heating effect improves product quality, compare with prior art, need not to remove the forming die who has placed and preimpregnation material, thereby the relative displacement between preimpregnation material and the forming die in the forming process has been avoided, the forming quality of product has been improved.

Referring to fig. 2, in order to prevent the support frame 10 from deviating from the path when moving, the guide wheel 40 further has two auxiliary guide wheels disposed at two sides of the moving direction of the guide wheel 40, the radial direction of the two auxiliary guide wheels is perpendicular to the radial direction of the guide wheel 40, the two auxiliary guide wheels are disposed opposite to each other, and the inner walls of the two auxiliary guide wheels are disposed in rolling contact with the side walls of the track 50. Through the arrangement of the auxiliary guide wheels, the moving direction of the guide wheel 40 is corrected timely, and the safety of product permission is improved.

As shown in fig. 3, the track 50 includes a rail body 51 and a bottom plate 52 perpendicular to the rail body 51, the cross section of the rail body 51 is rectangular, the rail wheel 40 is clamped on the rail body 51, and the positioning plate 70 is fixed on the bottom plate 52. It should be noted here that, the two ends of the guide rail body 51 are further provided with stoppers for placing the guide rail wheels 40 to derail at the two ends of the guide rail body 51, the bottom plate 52 is fixed with the guide rail body 51, and the bottom plate 52 is provided with fixing hole sites for fixing the rails 50; meanwhile, the fixing hole sites may also be used for fixing the positioning plate 70.

In the embodiment of the present invention, as shown in fig. 4, the positioning driving member 80 is a pneumatic cylinder or a hydraulic cylinder, and a piston rod of the pneumatic cylinder or the hydraulic cylinder is disposed to correspond to the positioning hole of the positioning plate 70. When the support 10 moves, the piston rod of the pneumatic cylinder or the hydraulic cylinder retracts, and when the preset position is reached, the piston cylinder of the pneumatic cylinder or the hydraulic cylinder is driven to eject, so that the top of the piston rod extends into the positioning hole of the positioning plate 70, and the support 10 is fixed.

Further, in the embodiment of the present invention, as shown in fig. 5, the movable driving member 60 is a motor, and a rotating shaft of the motor is fixedly connected to the guide wheel 40 to drive the guide wheel 40 to rotate; in addition, the motor may also drive the rotation of the follower lever having teeth at both ends thereof to be engaged with the rail wheels 40, thereby simultaneously driving the rotation of the two rail wheels 40 using one motor.

Or, the movable driving member 60 is a motor screw structure, the screw is arranged in parallel with the track 50 and is driven by the motor, and the bottom end of the bracket 10 is provided with a fixed block engaged with the screw;

or, the movable driving member 60 is a motor gear rack structure, wherein the rack is arranged in parallel with the track 50, the motor is fixed on the bracket 10, and the top of the motor is fixed with a gear engaged with the rack;

alternatively, the movable driving member 60 is a sprocket chain structure, or a timing belt structure. The above-mentioned structures all fall within the scope of the present invention.

Referring to fig. 7, a thermal diaphragm frame 90 is further stacked on the upper surface of the vacuum platform 20, the bottom surface of the thermal diaphragm frame 90 contacts the upper surface of the vacuum platform 20, the upper surface and the side surface of the thermal diaphragm frame 90 are used for wrapping the thermal diaphragm, and a fixing groove 91 is formed on the side surface of the thermal diaphragm frame 90, and the groove is used for being matched with a rubber strip to fix the thermal diaphragm. The lamination here is that directly place on evacuation platform 20, thermal diaphragm frame 90 is the framework that has a take the altitude, its upper and lower surface is the plane, be used for fixing and paving the thermal diaphragm, when specifically installing the thermal diaphragm, as shown in fig. 9, lay the thermal diaphragm on the upper surface of thermal diaphragm frame 90 at first, and simultaneously, the four sides of thermal diaphragm take on four lateral walls of thermal diaphragm frame 90, fix the four sides extrusion of thermal diaphragm in fixed recess 91 through the rubber strip of the profile modeling with fixed recess 91, formed the fixed to the thermal diaphragm, this fixed mode is simple swift, be favorable to improving the efficiency of construction and laying the success rate of thermal diaphragm.

In order to realize the sealing performance between the heat separation membrane frame 90 and the vacuum platform 20, as shown in fig. 6, a sealing groove 21 is further provided in a region where the upper surface of the vacuum platform 20 is in contact with the heat separation membrane frame 90, a sealing gasket 22 is provided in the sealing groove 21, and the sealing performance of the heat separation membrane is completed by pressing the sealing gasket 22 between the bottom surface of the heat separation membrane frame 90 and the upper surface of the vacuum platform 20; when the vacuum pumping is carried out, due to the negative pressure, after the vacuum pumping is wrapped by the thermal diaphragm, downward pressure is generated, and the sealing performance is further improved. Specifically, as shown in fig. 10 and 11, the gasket 22 includes a hollow circular gasket 221 and a strip gasket 222, and a bottom surface of the strip gasket 222 is tangential to an outer surface of the hollow circular gasket 221. Through the setting of the hollow circular sealing gasket 221, the deformability of the sealing gasket 22 is stronger, so that the service life and the sealing effect of the sealing gasket 22 are improved, and the contact area between the sealing gasket 22 and the vacuumizing platform 20 is increased through the tangent setting of the strip-shaped sealing gasket 222 and the hollow circular sealing gasket 221, so that the sealing effect is further improved.

In order to improve the accuracy of placing the thermal diaphragm frame 90, as shown in fig. 12, a limiting member 11 is further disposed on the outer side of the support 10, the limiting member 11 includes a fixing plate 111 and a vertical plate 112, the vertical plate 112 is connected to the fixing plate 111, the fixing plate 111 is fixed to the support 10 by a fastener, the vertical plate 112 protrudes from the vacuum pumping platform 20 in the height direction, and the limiting members 11 are disposed on four sides of the support 10 for limiting when placing the diaphragm frame. In addition, in order to reduce damage to the heat insulating membrane frame 90 during placement, the inner sides of the risers 112 are also chamfered. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A moveable thermal diaphragm vacuum bed, comprising:

a support;

the positioning driving piece is fixed at the bottom of the support, and when the support reaches a preset position, the positioning driving piece moves towards the positioning hole, so that the driving end of the positioning driving piece is clamped in the positioning hole;

the upper surface of the vacuum pumping platform is also provided with a heat diaphragm frame in an overlapping mode, the bottom surface of the heat diaphragm frame is in contact with the upper surface of the vacuum pumping platform, the upper surface and the side surface of the heat diaphragm frame are used for wrapping a heat diaphragm, a fixing groove is formed in the side surface of the heat diaphragm frame, and the groove is used for being matched with a rubber strip to fix the heat diaphragm;

the vacuum pumping platform upper surface with the region of thermal diaphragm frame contact still is provided with the seal groove, be provided with sealed the pad in the seal groove, sealed pad including sealed pad of hollow circular shape and the sealed pad of bar, the sealed bottom surface of bar with the tangent setting of the sealed surface of hollow circular shape to improve the sealing performance between diaphragm frame and vacuum pumping platform.

2. The moveable thermal diaphragm vacuum bed according to claim 1, wherein the guide wheel further comprises two auxiliary guide wheels, the two auxiliary guide wheels are disposed on two sides of the moving direction of the guide wheel, the radial direction of the two auxiliary guide wheels is perpendicular to the radial direction of the guide wheel, the two auxiliary guide wheels are disposed opposite to each other, and the inner walls of the two auxiliary guide wheels are disposed in rolling contact with the side wall of the track.

3. The moveable thermal diaphragm vacuum bed of claim 1, wherein the track comprises a rail body and a bottom plate disposed perpendicular to the rail body, the rail body has a rectangular cross section, the rail wheels are engaged with the rail body, and the positioning plate is fixed on the bottom plate.

4. The moveable thermal diaphragm vacuum bed of claim 1 wherein the positioning drive is a pneumatic or hydraulic cylinder, and a piston rod of the pneumatic or hydraulic cylinder is disposed in correspondence with the positioning hole of the positioning plate.

5. The moveable thermal diaphragm vacuum bed of claim 1, wherein the moveable driving member is a motor, and a rotating shaft of the motor is fixedly connected to the guide wheel to drive the guide wheel to rotate;

6. The movable thermal diaphragm vacuum bed according to claim 1, wherein a limiting member is further disposed on an outer side of the support, the limiting member includes a fixed plate and a vertical plate, the vertical plate is connected to the fixed plate, the fixed plate is fixed to the support through a fastener, the vertical plate protrudes in a height direction from the vacuum pumping platform, and the limiting member is disposed on four sides of the support for limiting when a diaphragm frame is placed.