CN216182105U

CN216182105U - Resin casting body mould

Info

Publication number: CN216182105U
Application number: CN202122811091.5U
Authority: CN
Inventors: 李酉成; 李龙梓; 俞锋; 蒋涛
Original assignee: SUZHOU CONCRETE CEMENT PRODUCTS RESEARCH INSTITUTE CO LTD
Current assignee: SUZHOU CONCRETE CEMENT PRODUCTS RESEARCH INSTITUTE CO LTD
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-04-05
Anticipated expiration: 2031-11-16

Abstract

The utility model relates to a resin casting body mould, which comprises a mould body with a casting groove, wherein a channel penetrating through the bottom of the groove and the lower surface of the mould body is arranged at the position, corresponding to the bottom of the casting groove, of the mould body, a lifting mechanism capable of moving along the vertical direction is arranged in the casting groove, the resin casting body mould also comprises a base which is connected with the lower part of the mould body and is internally provided with a closed cavity, and an air injection mechanism used for conveying air into the closed cavity, and the closed cavity is communicated with the channel. When the mold is demolded, the gas is conveyed into the closed cavity through the gas injection mechanism, and the lifting mechanism is driven to move in the pouring groove, so that the resin pouring body is separated from the pouring groove, demolding operation is realized, demolding efficiency is greatly improved, the number of places where the prepared resin pouring body needs to be polished is small, labor intensity of testing personnel is greatly reduced, the size is more accurate, and testing accuracy can be better guaranteed.

Description

Resin casting body mould

Technical Field

The utility model belongs to the technical field of resin casting body test methods, and particularly relates to a resin casting body mold.

Background

The resins have different properties including tensile strength, tensile modulus, etc., and the tensile properties are important indicators for evaluating the resins, so that the tensile properties of the produced resins need to be tested. When the tensile property is detected, the material must be prepared into a specific strip pattern, and the test method refers to GB/T2567-2008. At present, most of domestic manufacturers adopt two flat plates which are stacked up and down to form a cavity with three sealed sides, the periphery of the cavity is fastened by bolts, and required resin casting bodies are injected into the cavity to form solid strips. However, the method has the defects of complicated steps, difficulty in controlling the size of a sample in the cutting process, grinding requirement and the like.

The patent CN103158221A discloses a resin casting processing mold, which is composed of at least two double cross assemblies, wherein the double cross assemblies include two short beams and a through beam, the length of the short beam is twice the thickness of the prepared casting plus the width of the through beam, the distance between the two short beams is the length of the prepared casting plus the width of the short beam, and the thickness of the through beam is the width of the prepared casting. Patent CN201573312U discloses a resin casting and drawing mold, comprising an upper half mold and a lower half mold, wherein the upper half mold is a flat plate, the thickness of the flat plate is consistent with the thickness of a resin casting body drawing spline to be prepared, four corners of the flat plate are respectively provided with a cylindrical through hole penetrating through the flat plate, namely an upper half mold cylindrical through hole, the four upper half mold cylindrical through holes are symmetrically distributed, five dumbbell-shaped through grooves penetrating through the flat plate are uniformly and parallelly distributed among the four upper half mold cylindrical through holes on the flat plate, the length, width and other dimensions of the dumbbell-shaped through grooves are consistent with the dimension of the resin casting body drawing spline to be prepared, the lower half mold is a flat plate, the length and width of the flat plate are completely the same as those of the upper half mold flat plate, four corners of the flat plate are respectively provided with a cylindrical through hole penetrating through the flat plate, namely a lower half mold cylindrical through hole, and the four lower half mold cylindrical through holes are symmetrically distributed, and the position on the flat plate is the same as the position of the cylindrical through hole of the upper half die on the upper half die, when the device is used, the upper half die and the lower half die are overlapped, the cylindrical through hole of the upper half die and the cylindrical through hole of the lower half die are kept aligned, and the device can be used for preparing the resin casting body stretching sample strip by utilizing bolt fixation.

Although the problem of large-area cutting of a sample is avoided, the obtained sample strip still needs to be polished in a large area, the sample strip is not easy to demould, the working efficiency is low, the labor intensity is high, the sample strip is easy to break in the demoulding process, and the accuracy of the test can not be effectively controlled.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the resin casting body mould with high working efficiency by overcoming the defects of the prior art, and simultaneously, the accuracy of the test can be better ensured by adopting the resin casting body mould.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a resin casting body mould, is including the mould body that has the pouring recess, the correspondence of mould body the position setting of the tank bottom of pouring recess runs through the tank bottom with the passageway of the lower surface of mould body, be equipped with the elevating system that can follow vertical direction activity in the pouring recess, resin casting body mould still include with the sub-unit connection of mould body and inside have the base of airtight cavity and be used for to conveying gaseous gas's gas injection mechanism in the airtight cavity, airtight cavity with the passageway intercommunication, through gas injection mechanism to conveying gas in the airtight cavity, and then the drive elevating system is in the pouring recess internalization.

Further, when the resin casting body needs to be demoulded, gas is injected into the closed cavity through the gas injection mechanism, the lifting mechanism is driven to move upwards along the vertical direction, and the resin casting body is further pushed to move upwards to be separated from the casting groove; when the resin casting body is separated from the casting groove, gas leaks out, and the lifting mechanism moves downwards under the self gravity.

According to some embodiments of the present invention, the gas injection mechanism includes a gas injector and a gas pipe connected between the gas injector and a base, the base is provided with a gas inlet communicated with the closed cavity, and two ends of the gas pipe are respectively connected with the gas inlet and the gas injector.

Further, the gas injection mechanism further comprises a gas injection valve arranged at the gas inlet or on the gas pipe, the resin casting body mold further comprises a control system electrically connected with the gas injection valve and the gas injection machine respectively, and the control system is used for controlling the work of the gas injection valve and the gas injection machine; and/or the control system can be further used for controlling the demolding time of the resin casting body, so that the resin casting body is demolded according to the set demolding time.

According to some embodiments of the present invention, the resin casting body mold further includes a universal level provided on the mold body, and the bottom of the base is provided with a plurality of adjusting bolts along a circumferential direction thereof for adjusting a height of the base.

In some preferred and specific embodiments, the level indicator is disposed on an upper surface of the die body.

According to some embodiments of the present invention, the channel extends in a vertical direction, the lifting mechanism includes a lifting plate located in the casting groove and capable of moving in the casting groove in the vertical direction, and a lifting column having an upper end fixedly connected to a lower surface of the lifting plate and a lower end inserted into the channel, and the gas pushes the lifting plate to move upward in the casting groove, so as to drive the lifting column to move upward in the channel in the vertical direction.

In some embodiments, the mold body includes an upper mold body and a lower mold body which are sequentially arranged from top to bottom, the pouring groove is formed in the upper mold body and the lower mold body, the channel is formed in the lower mold body, when resin is poured, the lifting plate is located in the pouring groove of the lower mold body, and the upper surface of the lifting plate is flush with the lower surface of the upper mold body.

The upper die body and the lower die body can be fixedly connected or detachably connected, such as welded, bolted or in other connection modes.

In some embodiments, the shape of the cross section of the lifting plate matches the shape of the cross section of the pouring groove; and/or the cross-sectional area of the lifting plate is smaller than that of the pouring groove.

According to some implementation aspects of the utility model, the groove wall of the pouring groove is provided with a demolding layer, so that demolding is facilitated.

According to some implementation aspects of the utility model, the pouring grooves are provided in plurality, each pouring groove is provided with one corresponding channel, and all the channels are communicated with the closed cavity.

According to some embodiments of the utility model, the cross-sectional area of the channel is smaller than the cross-sectional area of the pouring groove.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

when the resin casting body mold is used for demolding, gas is conveyed into the closed cavity through the gas injection mechanism, and the lifting mechanism is driven to move in the pouring groove, so that the resin casting body is separated from the pouring groove, demolding operation is realized, demolding efficiency is greatly improved, fewer places are needed for polishing the resin casting body prepared by using the resin casting body mold, labor intensity of testing personnel is greatly reduced, the size is more accurate, and testing accuracy can be better guaranteed.

Drawings

FIG. 1 is a schematic cross-sectional view of a resin casting mold according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of a lifting mechanism of a resin pot mold according to an embodiment of the present invention;

FIG. 3 is a schematic top view of a mold body of a resin cast body mold according to an embodiment of the utility model;

FIG. 4 is a schematic cross-sectional view of a lower mold body of a resin casting mold according to an embodiment of the present invention;

in the figure: 1. a mold body; 1a, an upper die body; 1b, a lower die body; 2. a base; 3. pouring a groove; 4. sealing the cavity; 5. a lifting mechanism; 5a, a lifting plate; 5b, a lifting column; 6. a gas injection mechanism; 6a, an air injection machine; 6b, a gas conveying pipe; 6c, a gas injection valve; 7. adjusting the bolt; 8. a universal level; 9. a channel; 10. and (5) controlling the system.

Detailed Description

The utility model is further described with reference to the drawings and the specific embodiments in the following description:

the resin casting body mold shown in fig. 1-4 comprises a mold body 1 with a plurality of casting grooves 3, a channel 9 which is arranged along the vertical direction and runs through the bottom of the groove and the lower surface of the mold body 1 at the position of the bottom of each casting groove 3 corresponding to the mold body 1, a lifting mechanism 5 which can move along the vertical direction is arranged in each casting groove 3, the resin casting body mold further comprises a base 2 which is connected with the lower part of the mold body 1 and is provided with a closed cavity 4 inside and a gas injection mechanism 6 which is used for conveying gas into the closed cavity 4, the closed cavity 4 is communicated with all the channels, the gas is conveyed into the closed cavity 4 through the gas injection mechanism 6, and then the lifting mechanism 5 is driven to move in the casting grooves 3.

As shown in fig. 2, the lifting mechanism 5 of this embodiment includes a lifting plate 5a located in the pouring recess 3 and capable of moving in the pouring recess 3 in the vertical direction, and a lifting column 5b having an upper end fixedly connected to the lower surface of the lifting plate 5a and a lower end inserted in the channel 9, and the gas pushes the lifting plate 5a to move upward in the pouring recess 3, so as to drive the lifting column 5b to move upward in the channel 9. Referring to fig. 3-4, the die body 1 includes upper die body 1a and lower die body 1b that set gradually from top to bottom, and pouring recess 3 is seted up on upper die body 1a and lower die body 1b, and passageway 9 sets up on lower die body 1b, and when casting resin, lifter plate 5a is located the pouring recess 3 of lower die body 1b, and the upper surface of lifter plate 5a flushes with the lower surface of upper die body 1 a.

The upper mold body 1a and the lower mold body 1b can be integrally formed, or the lower surface of the upper mold body 1a and the upper surface of the lower mold body 1b can be welded and fixed to form a whole, so that the groove on the upper mold body 1a is a pouring through groove and forms a pouring groove together with the groove on the lower mold body 1 b. The upper die body 1a and the lower die body 1b are made of metal materials respectively, and the groove wall of the pouring groove 3 is provided with a demolding layer, so that the demolding layer is not bonded with the resin pouring body, and the demolding of the resin pouring body is facilitated.

The cross section area of the channel 9 is smaller than that of the pouring groove 3, and the cross section shape of the lifting plate 5a is matched with that of the pouring groove 3, so that when the resin pouring body is contained in the pouring groove 3 and the air is introduced into the closed cavity 4, the lifting plate 5a is matched with the bottom surface of the lower die body 1b, and pressure is maintained.

In this example, the gas injection mechanism 6 comprises a gas injection machine 6a and a gas pipe 6b connected between the gas injection machine 6a and the base 2, the base 2 is provided with a gas inlet communicated with the closed cavity 4, two ends of the gas pipe 6b are respectively communicated with the gas injection machine 6a and the gas inlet, the gas injection mechanism 6 further comprises a gas injection valve 6c arranged at the gas inlet, the gas injection valve 6c is connected to the gas inlet through threads and sealant, and the gas injection valve 6c can be replaced by different types to meet the working requirements; the gas injection machine 6a can adopt an air compressor, the gas injection time and the gas injection quantity can be adjusted, and the outer side surface is provided with a digital display panel.

The resin casting body mold further comprises a control system 10 which is respectively electrically connected with the gas injection valve 6c and the gas injection machine 6a, the control system 10 is used for controlling the work of the gas injection valve 6c and the gas injection machine 6a, the control system 10 can also be used for controlling the demolding time of the resin casting body, so that the resin casting body is demolded according to the set demolding time, and the control system 10 can be remotely controlled.

This resin pouring body mould is still including setting up the universal level 8 at the upper surface of mould body 1, universal level 8 and mould body 1 can be partial to in step, the slope, accurate real-time reflection mould body 1's the horizontal condition, the bottom of base 2 is provided with a plurality of adjusting bolt 7 that are used for adjusting 2 heights of base along its circumference, a plurality of adjusting bolt 7 evenly distributed are in the bottom of base 2, thereby the levelness of experimenter accessible clockwise and anticlockwise rotation regulation mould, through the change of observing universal level 8, adjust the mould to the required relative horizontal position of experimenter.

Through the resin casting body mould, the mould can be automatically demoulded according to set time after a tester pours resin, and a plurality of moulds can be demoulded according to different time. The mechanical precision and the test efficiency of the resin casting body during future measurement are improved, and the labor intensity of testers is reduced.

The method for preparing the resin casting body by the resin casting body mould comprises the following steps:

(1) checking the universal level gauge 8, observing whether the mold is horizontal, and if the mold is inclined, adjusting the adjusting bolt 7 until the mold is horizontal;

(2) after the mould is adjusted to be horizontal, resin is poured into the pouring groove 3, and after the liquid level is flush with the upper surface of the mould body 1, pouring is finished;

(3) a tester selects the model style in the control system 10, and selects and sets the required jacking force of the lifting mechanism 5 during demoulding according to the corresponding parameters, so as to ensure that the resin is not damaged during demoulding; at the same time, according to the type of the resin, the curing time is determined, so that the demolding time is set in the control system 10;

(4) when demoulding, the control system 10 sends a gas injection instruction to the gas injection machine 6a according to the set information, the gas injection valve 6a works to inject compressed gas into the closed cavity 4 of the base 2, and after a certain working pressure is reached, the lifting mechanism 5 performs one-way piston movement and upward movement to push the resin casting body to move upward, so that the resin casting body is separated from the casting groove 3. When the resin casting body is jacked up to be demolded, air pressure is not provided for injecting air into the closed cavity 4 of the base 2 according to the air injection amount set by the control system 10 to the air injection machine 6 a. After the tester takes away the resin casting body, the pressure is fed back to the control system 10, the air injection valve 6c is controlled to be opened, the pressure is naturally released to the outside, and the lifting mechanism 5 moves downwards under the self gravity and returns to the initial stage. So far, the whole resin casting body preparation demolding process is completed.

In this embodiment, the upper mold body 1a and the lower mold body 1b are welded to each other. The gas injector 6a and the control system 10 are directed to a mold, but the utility model is not limited thereto, and the connection between the upper mold body 1a and the lower mold body 1b can be a bolt connection or other fixing forms, so that the fixation and the disassembly between the two are convenient for meeting the manufacture of different resin casting bodies. Meanwhile, the control system 10 can also control the gas injection machine 6a to perform a gas injection process on a plurality of molds through the gas injection valve 6c, so that the demolding of the plurality of molds can be completed at different time periods.

In other embodiments, the mold can meet various types of resin castings required by the experimenter by changing the pattern of different casting grooves 3.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the utility model, and not to limit the scope of the utility model, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims

1. The utility model provides a resin casting body mould, is including the mould body that has the pouring recess, its characterized in that: the mould body correspond the position setting of the tank bottom of pouring recess run through the tank bottom with the passageway of the lower surface of mould body, be equipped with the elevating system that can follow vertical direction activity in the pouring recess, resin casting body mould still include with the sub-unit connection of mould body and inside have the base of airtight cavity and be used for to conveying gas's in the airtight cavity gas injection mechanism, airtight cavity with the passageway intercommunication, through gas injection mechanism to conveying gas in the airtight cavity, and then the drive elevating system is in the pouring recess internalization.

2. The resin casting mold according to claim 1, wherein: when the resin casting body needs to be demoulded, injecting gas into the closed cavity through the gas injection mechanism, driving the lifting mechanism to move upwards along the vertical direction, and further pushing the resin casting body to move upwards to be separated from the casting groove; when the resin casting body is separated from the casting groove, gas leaks out, and the lifting mechanism moves downwards under the self gravity.

3. The resin casting mold according to claim 1 or 2, wherein: the gas injection mechanism comprises a gas injection machine and a gas pipe connected between the gas injection machine and a base, the base is provided with a gas inlet communicated with the closed cavity, and two ends of the gas pipe are respectively connected with the gas inlet and the gas injection machine.

4. The resin casting mold according to claim 3, wherein: the gas injection mechanism further comprises a gas injection valve arranged at the gas inlet or on the gas pipe, the resin pouring body mold further comprises a control system electrically connected with the gas injection valve and the gas injection machine respectively, and the control system is used for controlling the gas injection valve and the gas injection machine to work; and/or the control system can be further used for controlling the demolding time of the resin casting body, so that the resin casting body is demolded according to the set demolding time.

5. The resin casting mold according to claim 1 or 2, wherein: the resin casting body mould also comprises a universal level gauge arranged on the mould body, and a plurality of adjusting bolts used for adjusting the height of the base are arranged at the bottom of the base along the circumferential direction of the base.

6. The resin casting mold according to claim 5, wherein: the universal level gauge is arranged on the upper surface of the die body.

7. The resin casting mold according to claim 1 or 2, wherein: the passageway extends the setting along vertical direction, elevating system including being located in the pouring recess and can be in along the lifter plate and the upper end of vertical direction activity in the pouring recess with the lower fixed surface of lifter plate is connected and the lower tip inserts and is established the lift post in the passageway, gaseous promotion the lifter plate is in upward movement in the pouring recess, and then drive the lift post is in along vertical direction upward movement in the passageway.

8. The resin casting mold according to claim 7, wherein: the mould body is including last die body and the lower die body that sets gradually from top to bottom, the pouring recess is seted up on last die body and the lower die body, the passageway sets up on the die body down, when casting resin, the lifter plate is located in the pouring recess of die body down, just the upper surface of lifter plate with the lower surface of going up the die body flushes.

9. The resin casting mold according to claim 7, wherein: the shape of the cross section of the lifting plate is matched with that of the cross section of the pouring groove; and/or the cross-sectional area of the lifting plate is smaller than that of the pouring groove.

10. The resin casting mold according to claim 1 or 2, wherein: a demolding layer is arranged on the wall of the pouring groove; and/or a plurality of pouring grooves are arranged, each pouring groove is correspondingly provided with one channel, and all the channels are communicated with the closed cavity; and/or the cross-sectional area of the channel is smaller than the cross-sectional area of the pouring groove.