WO2022262086A1 - 一种模具的制备装置及制备方法 - Google Patents

一种模具的制备装置及制备方法 Download PDF

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Publication number
WO2022262086A1
WO2022262086A1 PCT/CN2021/109125 CN2021109125W WO2022262086A1 WO 2022262086 A1 WO2022262086 A1 WO 2022262086A1 CN 2021109125 W CN2021109125 W CN 2021109125W WO 2022262086 A1 WO2022262086 A1 WO 2022262086A1
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WO
WIPO (PCT)
Prior art keywords
mold
raw material
preparation device
assembly
telescopic rod
Prior art date
Application number
PCT/CN2021/109125
Other languages
English (en)
French (fr)
Inventor
黄远
颜平
刘龙
陈宾文
曲秋羽
Original Assignee
苏州悦肤达医疗科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 苏州悦肤达医疗科技有限公司 filed Critical 苏州悦肤达医疗科技有限公司
Priority to EP21945667.0A priority Critical patent/EP4357099A1/en
Publication of WO2022262086A1 publication Critical patent/WO2022262086A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/26—Moulds or cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/36—Removing moulded articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/38—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/44—Measuring, controlling or regulating

Definitions

  • the invention relates to the technical field of mold manufacturing, in particular to a mold preparation device and a preparation method.
  • silicone microneedle negative mold When using polymers to prepare microneedles, it is necessary to use a silicone microneedle negative mold. There are many preparation methods for the silicone microneedle negative mold. One of the preparation methods is to use a high-energy laser beam to ablate a solid silica gel plate to form microneedle grooves. One preparation method is the silica gel rotary molding method.
  • the method of using high-energy laser beam ablation is simple and fast, and is suitable for the manufacture of silicone microneedle negative molds with large areas.
  • the surface of the silica gel is relatively rough after ablation, and the ablation residue remains in the microneedle groove and is difficult to remove, which has an adverse effect on the subsequent use of the mold.
  • silicone mold transfer method is to use injection molding equipment to perform injection molding on the microneedle male mold, but this needs to provide a mold base that matches the microneedle male mold, which increases production costs and reduces the number of silicone microneedle female molds of different specifications.
  • the flexibility of preparation but also the problem of long production cycle.
  • the injection pressure during injection molding is relatively high, so the strength of the microneedle male mold needs to be large enough, which limits the selection of its material and further increases the production cost.
  • the object of the present invention is to provide a mold preparation device and method, which can be used to prepare molds in batches.
  • the present invention provides a mold preparation device, including a molding assembly, the molding assembly includes a mold table and a male mold, the upper surface of the mold table is provided with a recessed area, and the male mold is used to set On the bottom surface of the concave area, and the height of the male mold is smaller than the depth of the concave area.
  • the male mold includes a substrate, and the upper surface of the substrate is a plane; the preparation device further includes an adjustment mechanism, which is used to drive the male mold to move, and make the upper surface of the substrate at level.
  • both the lower surface of the substrate and the bottom surface of the recessed area are planes; the adjustment mechanism is used to drive the mold table to move and make the bottom surface of the recessed area in a horizontal plane, so that the positive The mold moves and brings the upper surface of the substrate at another level.
  • the adjustment mechanism includes a motion table configured to move under the action of an external force; the motion table is arranged below the molding assembly and carries the molding assembly.
  • the recessed area is used to load liquid raw materials
  • an annular sealing ring is provided on the lower surface of the substrate and/or the bottom surface of the recessed area, and the sealing ring is used to prevent the liquid raw material from flowing into the The area between the lower surface of the substrate and the bottom surface of the recessed area.
  • the recessed area is used to load liquid raw materials, and the liquid raw materials are immersed in the male mold and solidified to form a mold;
  • the preparation device also includes a removal mechanism, and the removal mechanism is used to make the molding assembly Separated from the mould.
  • the stripping mechanism includes a stripping assembly and a stripping assembly
  • the stripping assembly includes a first telescopic rod and a first power device
  • the first telescopic rod is arranged vertically
  • the first telescopic rod is vertically arranged.
  • a telescopic rod passes through the mold table and is connected with the male mold, and the first power device is used to drive the first telescopic rod to expand and contract
  • the mold taking assembly includes a second telescopic rod, a second power device and a bearing The support part, the second telescopic rod is arranged horizontally, the second power device is used to drive the second telescopic rod to expand and contract, the supporting part is connected to the second telescopic rod, and is used to support the mold ;
  • the preparation device is configured such that when the first power device drives the first telescopic rod to extend, the first telescopic rod drives the male mold to move upward, and separates the male mold from the mold The mold table; when the second power device drives the second telescopic rod to extend, the second telescopic rod drives the supporting part to move and makes the supporting part support the mold.
  • the male mold moves downward and separates the male mold from the mold.
  • the molding device is further configured such that when the second power device drives the second telescopic rod to shorten, the second telescopic rod drives the mold away from the molding assembly.
  • the male mold is detachably connected to the first telescopic rod.
  • the preparation device further comprises a box body and a vacuum generating element, the box body is provided with a mold-taking window, and the mold-taking window is provided with a door assembly, the door assembly is used to close the mold taking window; the vacuum generating element is used to generate a vacuum environment in the box;
  • At least part of the structure of the molding assembly and the demoulding assembly is arranged in the box, the mold taking assembly is arranged outside the box, and the second telescopic rod is used to pass through the Take the mold window, so that the supporting part enters the box and supports the mold.
  • the preparation device further includes a heating component for heating the molding component.
  • the preparation device further includes a raw material supply assembly, and the raw material supply assembly is used for pouring liquid raw materials into the recessed area.
  • the liquid raw material includes at least two components;
  • the raw material supply assembly includes a plurality of liquid storage tanks and a plurality of metering mechanisms, each of the liquid storage tanks is used to store a composition of the liquid raw material
  • the metering mechanism is set corresponding to the liquid storage tank, and is used to measure the amount of each component of the liquid raw material separately;
  • the raw material supply assembly also includes a mixing mechanism for uniformly mixing the various components of the liquid raw material and pouring it into the depressed area.
  • the preparation device further includes a control component, connected in communication with the raw material supply mechanism, and used to control the amount of each component of the liquid raw material, the mixing speed of each component, and the pouring of the liquid raw material At least one of the speed; and/or, when the preparation device includes a box and a vacuum generating element, the control assembly is also connected to the vacuum generating element for controlling the degree of vacuum in the box; and/or Or, the control component is also communicatively connected with the heating component, and is used to control the temperature of the molding component within a predetermined range.
  • a control component connected in communication with the raw material supply mechanism, and used to control the amount of each component of the liquid raw material, the mixing speed of each component, and the pouring of the liquid raw material At least one of the speed; and/or, when the preparation device includes a box and a vacuum generating element, the control assembly is also connected to the vacuum generating element for controlling the degree of vacuum in the box; and/or Or, the control component is also communicatively connected with the heating component,
  • the male mold includes a base plate and a needle, and the needle is arranged on the upper surface of the base plate.
  • the present invention also provides a mold preparation method, based on the mold preparation device as described in any one of the preceding items, characterized in that the preparation method comprises the following steps:
  • Step S10 pouring liquid raw material into the recessed area, and immersing the liquid raw material into the male mold;
  • Step S20 solidifying the liquid raw material to form the mold.
  • a step S00 is further included: driving the male mold to move, so that the upper surface of the base plate of the male mold is located on a horizontal plane.
  • the liquid raw material includes at least two components, and the preparation device further includes a raw material supply mechanism;
  • the step S10 includes: the raw material supply mechanism mixes each component according to the ratio of the liquid raw material and then pours it into the recessed area at a predetermined speed.
  • the step S20 includes: heating the molding component to a first predetermined temperature, so as to solidify the liquid raw material.
  • the molding method further includes step S01: heating the molding component to a second predetermined temperature
  • the step S01 is executed after the step S00 and before the step S10.
  • the molding assembly is accommodated in a box
  • the forming method further includes step S02: generating a vacuum environment in the box; the step S02 is performed before the step S10;
  • the forming method further includes step S11: injecting gas into the box to restore the pressure in the box to normal pressure; the step S11 is performed after the step S10.
  • the preparation device and the preparation method of the mold of the present invention have the following advantages:
  • the aforementioned mold preparation device includes a molding assembly, the molding assembly includes a mold table and a male mold, the upper surface of the mold table is provided with a recessed area, and the male mold is used to be arranged on the bottom surface of the recessed area, and The height of the male mold is smaller than the depth of the recessed area. In this way, the liquid raw material is poured into the concave area and submerged in the male mold. After the liquid raw material is solidified, a mold matching the male mold can be formed.
  • the preparation device can be used to prepare the molds in batches, improving the Mold production efficiency.
  • the male mold includes a base plate, and the upper surface of the base plate is a plane; the preparation device also includes an adjustment mechanism, which is used to drive the male mold to move, so that the upper surface of the base plate is at level. This is because the partial solidification between the liquid level of the liquid raw material and the upper surface of the substrate is the base of the mould, and before pouring the liquid raw material, the adjustment mechanism is used to adjust the upper surface of the male mold.
  • the surface is in a horizontal plane, that is, the upper surface of the male mold is pre-adjusted to be parallel to the liquid surface of the liquid raw material, so the base of the mold has a uniform thickness.
  • the preparation device also includes a take-off mechanism, which can demould and transfer the mold after the liquid raw material is solidified, so that when the mold is continuously produced by the preparation device, the cooling time of the mold can be saved, and the improvement can be improved.
  • a take-off mechanism which can demould and transfer the mold after the liquid raw material is solidified, so that when the mold is continuously produced by the preparation device, the cooling time of the mold can be saved, and the improvement can be improved.
  • the preparation device also includes a raw material supply assembly
  • the raw material supply assembly may include a plurality of liquid storage tanks, a plurality of metering mechanisms and a mixing mechanism, and a plurality of the liquid storage tanks are used to respectively store different groups of liquid raw materials. Separate, multiple metering mechanisms are used to measure the amount of different components according to the ratio of liquid raw materials, and then use the mixing mechanism to mix multiple components before pouring into the recessed area, so that the liquid raw materials can be prepared on the spot Use to avoid adverse effects on the quality of the mold caused by long-term storage of liquid raw materials after preparation.
  • the preparation device also includes a control component, which is used to control various parameters in the mold forming process, for example, communicates with the raw material supply component to control the supply of liquid raw materials, and communicates with the heating mechanism to control heating. Temperature, etc., to improve the consistency of mold mass production.
  • FIG. 1 is a schematic structural view of a mold preparation device provided by the present invention according to an embodiment
  • Fig. 2 is a partially enlarged schematic view of a mold preparation device provided according to an embodiment of the present invention.
  • 500-raw material supply assembly 510-liquid storage tank, 520-metering mechanism, 530-mixing mechanism;
  • 600-removal mechanism 610-demoulding assembly, 611-first power unit, 612-first telescopic rod, 620-mould taking component, 621-second power device, 622-second telescopic rod, 623- supporting department;
  • 700 - control assembly 710 - first control unit, 720 - second control unit.
  • each embodiment of the content described below has one or more technical features respectively, but this does not mean that the inventor must implement all the technical features in any embodiment at the same time, or can only implement different embodiments separately. Some or all of the technical features. In other words, on the premise that the implementation is possible, those skilled in the art can selectively implement some or all of the technical features in any embodiment according to the disclosure of the present invention and depending on design specifications or implementation requirements, or Selectively implement a combination of some or all of the technical features in multiple embodiments, thereby increasing the flexibility of the implementation of the present invention.
  • the singular forms “a”, “an” and “the” include plural objects, and the plural form “a plurality” includes two or more objects, unless the content clearly states otherwise.
  • the term “or” is generally used in the sense including “and/or”, unless the content clearly indicates otherwise, and the terms “install”, “connect” and “connect” should be To understand it in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two elements or the interaction relationship between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
  • Fig. 1 shows a schematic structural view of a mold preparation device provided by an embodiment of the present invention
  • Fig. 2 is a partially enlarged schematic view of the preparation device.
  • the preparation device includes a molding assembly 100
  • the molding assembly 100 includes a mold table 110 and a male mold 120
  • a concave area 111 is provided on the upper surface of the mold table 110 .
  • the male mold 120 is configured to be disposed on the bottom surface of the depressed area 111 , and the height of the male mold 120 is smaller than the depth of the depressed area 111 .
  • the male mold 120 refers to the original model used to make the mold, and its shape imitates the final shape of the product.
  • the male mold 120 may include a base plate 121 and a needle-shaped body 122, and the needle-shaped body 122 is vertically arranged on the upper surface of the base plate 121, so
  • the acicular body refers to a convex structure with a tip.
  • the material of the male mold 120 can be metal, silicon or a polymer with sufficient strength.
  • the depth of the recessed area 111 refers to the size of the recessed area 111 in the vertical direction, and the height of the male mold 120 refers to the size of the substrate 121 in the vertical direction in relation to the needle-shaped body 122.
  • the preparation device can be used to produce molds by rotary molding, and improve the production efficiency of the molds.
  • the area of the bottom surface of the recessed region 111 should be larger than the area of the substrate 121 to facilitate subsequent demoulding.
  • the upper surface of the substrate 121 is a plane
  • the preparation device further includes an adjustment mechanism 200
  • the adjustment mechanism 200 is used to drive the movement of the male mold 120, and make the upper surface of the substrate 121 in a horizontal plane .
  • the preparation device uses the preparation device to produce the mold, first determine whether the upper surface of the base plate 121 of the male mold 120 is in a horizontal plane, if not, then use the adjustment mechanism 200 to drive the male mold 120 to move to the base plate The upper surface of 121 is in the horizontal plane.
  • the liquid material is poured into the recessed area 111 , and the liquid material is immersed in the male mold 120 .
  • the mold will be formed after the liquid raw material is solidified, and a part of the liquid raw material between the liquid surface and the upper surface of the substrate 121 is solidified to form the base of the mold.
  • the upper surface of the substrate 121 can be used to form the mold when the upper surface of the substrate 121 is at the horizontal plane.
  • the liquid surfaces of the liquid raw materials are parallel to each other, so that the base of the mold can have a uniform thickness, and the molding rate of the microneedles can be improved when the microneedles are subsequently manufactured using the mold.
  • the flatness of the upper surface of the substrate 121 is less than or equal to 0.05 mm, so as to reduce errors and improve the uniformity of the substrate.
  • the adjustment mechanism 200 is used to drive the male mold 120 to swing on a vertical plane, thereby adjusting the levelness of the upper surface of the substrate 121 .
  • both the lower surface of the substrate 121 and the bottom surface of the recessed area 111 are flat, so that the adjustment mechanism 200 can move the mold table 110 and make the bottom surface of the recessed area 111 in a horizontal plane. , so as to drive the male mold 120 to move and keep the upper surface of the substrate 121 at another level.
  • the substrate 121 has a certain thickness, after adjustment, the bottom surface of the recessed area 111 is at a different level from the upper surface of the substrate 121 .
  • a level can be used to monitor whether the upper surface of the substrate 121 is in a horizontal plane, and the level is preferably an electronic level or an inductive level.
  • the spirit level is installed on the upper surface of the substrate 121 and is used to directly monitor whether the upper surface of the substrate 121 is in a horizontal plane.
  • the adjustment mechanism 200 includes a motion platform, the upper surface of which can be a plane, and supports the molding assembly 100 (including the situation of directly bearing the molding assembly 100, and also including indirect bearing The case of the molding assembly 100), so that the upper surface of the base plate 121 is parallel to the upper surface of the moving table.
  • the moving table is configured to move under the action of an external force (for example, driven by a third driving device), and then drive the mold table 110 to move, and then drive the substrate 121 to move.
  • the level gauge can be arranged on the upper surface of the moving table, and indirectly monitor whether the upper surface of the substrate 121 is in the horizontal plane by monitoring whether the upper surface of the moving table is in the horizontal plane.
  • the material of the exercise table can be metal or marble.
  • the preparation device further includes a heating assembly, the heating assembly is used to heat the molding assembly 100, and then the molding assembly 100 transfers heat to the liquid raw material, so that the liquid raw material is Curing at low temperature accelerates the curing speed and shortens the molding time of the mold, and the curing temperature remains stable, which also reduces the impact on the quality of the mold due to fluctuations in the curing temperature.
  • the heating assembly includes an electric heating plate 310, the electric heating plate 310 is arranged on the moving table, and the molding assembly 100 is arranged on the electric heating plate 310 (that is, the moving table passes through the The electric heating plate 310 indirectly carries the molding assembly 100 ).
  • the preparation device includes a box body 410 and a vacuum generating element 420
  • the box body 410 can be used to accommodate the molding assembly 100, the electric heating plate 310 and the moving table. That is, the mold is formed in the box 410 .
  • the box body 410 is also provided with an air outlet (not shown in the figure), an air inlet (not shown in the figure) and a mold-taking window (not shown in the figure).
  • the vacuum generating element 420 is, for example, a vacuum pump or a vacuum generator, and the vacuum generating element 420 communicates with the air outlet for creating a vacuum environment in the box body 410.
  • a first vacuum is provided at the air inlet.
  • a valve (not shown in the figure), when the first valve is opened, allows outside air to enter the box 410 .
  • the mold taking window is provided with a door assembly 411.
  • the door assembly 411 closes the mold taking window.
  • the operator or a mechanical mechanism (such as The mold taking assembly 620 described later) can move the formed mold out of the box body 410 through the mold taking window.
  • the door assembly 411 is an electric control mechanism.
  • the preparation device further includes a raw material supply assembly 500 , the raw material supply assembly 500 is used to pass through the wall of the box body 410 and pour the liquid raw material into the recessed area 111 .
  • the first valve and the door assembly 411 are closed, and the vacuum generating element 420 works to keep the inside of the box 410 in a vacuum environment. That is, the pouring of the liquid raw material is carried out in a vacuum environment, which can avoid the gas from being mixed into the liquid raw material, so that there is no need to degas the liquid raw material during solidification, saving time.
  • the raw material supply assembly 500 may include a plurality of liquid storage tanks 510 , a plurality of metering mechanisms 520 and a mixing mechanism 530 .
  • Each of the liquid storage tanks 500 is used to store a component of the liquid raw material.
  • a plurality of metering mechanisms 520 are provided corresponding to the plurality of liquid storage tanks 510, and are used to meter the amount of each component respectively.
  • the mixing mechanism 530 is used to mix each component uniformly to obtain the liquid raw material, and pour the liquid raw material into the recessed area 111.
  • the mixing mechanism 530 can be any suitable mixing and stirring mechanism in the prior art, and a second valve (not shown in the figure) and a pipeline (not shown in the figure) can be provided at its outlet end. , the pipeline communicates with the mixing mechanism 530 through the second valve, and the pipeline is used to pass through the wall of the box body 410 and deliver the liquid raw material to the recessed area 111 .
  • the raw material supply assembly 500 can realize the mixing and using of the liquid raw materials immediately, avoiding changes in properties such as viscosity caused by long-term storage of the liquid raw materials after preparation, thereby adversely affecting the quality of the mold.
  • the preparation device also includes a removal mechanism 600, which is used to separate the molding assembly 100 from the mold, and is also used to keep the mold away from the molding assembly 100 and transfer to the outside of the box 410 .
  • the moving table is provided with a first through hole
  • the electric heating plate 310 is provided with a second through hole
  • the mold table 110 is provided with a third through hole
  • the third through hole is aligned with the first through hole.
  • the removal mechanism 600 includes a removal component 610 and a removal component 620 .
  • the demoulding assembly 610 includes a first power device 611 and a first telescopic rod 612, and the first power device 611 can be arranged inside the box body 410 or It may be arranged outside the box body 410 .
  • the first telescopic rod 612 is vertically arranged, and the lower end of the first telescopic rod 612 is connected to the output end of the first power device 611, and the upper end of the first telescopic rod 612 passes through the first The through hole, the second through hole and the third through hole are connected to the lower surface of the substrate 121 of the male mold 120 .
  • the first telescopic rod 612 is extended or shortened under the drive of the first power device 611 . It can be understood that the demoulding assembly 610 is configured to move with the movement of the male mold 120, for example, the first power device 611 of the demoulding assembly 610 is connected to the moving table, and moves with the movement of the male mold 120.
  • the moving table moves synchronously, so as to avoid the first telescoping 612 from interfering with the movement of the male mold 120 .
  • the mold taking assembly 620 can be arranged outside the box body 410, and includes a second power device 621, a second telescopic rod 622 and a supporting part 623, the second telescopic rod 622 is arranged horizontally, and is connected to the The position of the mold-taking window of the box body 410 is corresponding, and one end thereof is connected to the output end of the second power device 621 , and the other end is connected to the supporting portion 623 .
  • the second telescopic rod 622 is extended or shortened under the drive of the second power device 621 .
  • the first power unit 611 can drive the first telescopic rod 612 to extend, so that the first telescopic rod 612 drives the male mold 120 to move upward, and the male mold 120 120 and the mold is detached from the mold table 110 .
  • the second power device 621 drives the second telescopic rod 622 to extend, and the second telescopic rod 622 drives the supporting portion 523 to pass through the model taking window (at this time, the door assembly 411 is opened) , and reach below the mold to support the mold.
  • the first power device 611 drives the first telescopic rod 612 to shorten, and drives the male mold 120 to move downward.
  • the male mold 120 Separate from the mold and return to the original position.
  • the second power device 621 drives the second telescopic rod 622 to shorten, so that the supporting part 623 carries the mold and moves to the outside of the box body 410 .
  • the removal mechanism is used to complete the demoulding and removal of the mold without manual operation. Therefore, when the mold is mass-produced by the preparation device, this operation can be performed after the liquid raw material is solidified. There is no need to wait for the mold to cool down, shortening the production cycle.
  • the position of the male mold 120 can also be fixed, improving the consistency of the mold during mass production.
  • the male mold 120 is detachably connected to the first telescopic rod 612 through threads or any other suitable means, so as to facilitate the replacement of the male mold 120 .
  • the embodiment of the present invention has no special limitation on the shape of the supporting portion 623 , which can be designed according to actual needs, as long as it can support the mold.
  • an annular sealing ring is provided on the lower surface of the substrate 121 and/or the bottom surface of the recessed area 111, and the sealing ring is used to prevent the liquid raw material from flowing into the lower surface of the substrate 121 and the The area between the bottom surfaces of the recessed area 111 further prevents the liquid material from flowing into the third through hole, the second through hole and the first through hole.
  • the preparation device further includes a control assembly 700, which is used to control various parameters in the molding process of the mold.
  • the control component 700 is communicatively connected with the raw material supply component 500, and is used to control the amount of each component of the liquid raw material, the mixing speed of each component, the perfusion amount of the liquid raw material, the amount of the liquid raw material perfusion speed.
  • the heating assembly also includes a temperature sensor disposed in the electric heating plate 310, and the control assembly 700 is also communicatively connected with the heating assembly, for controlling the temperature of the electric heating plate 310 within a predetermined range, and then controlling the temperature of the electric heating plate 310.
  • the temperature of the molding assembly 100 is controlled within a predetermined range.
  • control assembly 700 is also used to communicate with the door assembly 411 , the mold taking mechanism 600 , the vacuum generating element 420 and the first valve, so as to control the opening and closing of the door assembly 411 , the demoulding parameters of the mold taking mechanism 600, the vacuum degree of the box 410, and the opening and closing of the first valve. In this way, the molding process of the mold can be precisely controlled, and the consistency of mold quality during mass production can be improved.
  • control assembly may be an integrated structure, or the control assembly may also include a plurality of separate control units, for example, including a first control unit 710 and a second control unit 720, the first The control unit 710 is communicatively connected with the raw material supply assembly 500 , the door assembly 411 , the mold taking mechanism 600 and the first valve, and the second control unit 720 is communicatively connected with the heating assembly.
  • first control unit 710 is communicatively connected with the raw material supply assembly 500 , the door assembly 411 , the mold taking mechanism 600 and the first valve
  • second control unit 720 is communicatively connected with the heating assembly.
  • the embodiment of the present invention also provides a mold preparation method, which uses the aforementioned preparation device to produce the mold. Described preparation method comprises the steps:
  • Step S10 pouring the liquid material into the recessed area 111 , and immersing the liquid material into the male mold 120 .
  • the raw material supply assembly 500 is used to pour the liquid raw material into the recessed area 111 .
  • Step S20 solidifying the liquid raw material to form the mold.
  • the heating assembly 300 is used to heat the molding assembly 100 to a first predetermined temperature, so that the liquid raw material is solidified at the first predetermined temperature.
  • the preparation method further includes step S00: driving the male mold 120 to move so that the upper surface of the male mold 120 is in a horizontal plane.
  • the molding method further includes step S01: preheating the molding assembly 100 . That is, after performing the step S10 and before the step S20, the molding assembly 100 is heated to a second predetermined temperature to preheat the molding assembly 100.
  • the second predetermined temperature is less than or equal to the first predetermined temperature.
  • the molding method further includes step S02: opening the vacuum generating element 420 to generate a vacuum environment in the box body 410 .
  • the step S02 can be executed before the step S10, it can be executed before the step S01, it can also be executed synchronously with the step S01, and it can also be executed after the step S01.
  • the molding method further includes step S11: opening the valve at the air inlet to allow air to enter the box body 410, and restore the pressure in the box body 410 to normal pressure.
  • the step S11 is executed after the step S10, and it can be executed simultaneously with the step S20.
  • the forming method further includes step S30: using the removing mechanism to transfer the mold to the outside of the box.
  • the step S30 is executed after the step S20.
  • the technical solutions provided by the embodiments of the present invention can be used to prepare molds in batches and improve the production efficiency of the molds.
  • the preparation device further includes an adjustment mechanism
  • the adjustment mechanism is used to drive the male mold to move until the upper surface of the substrate of the male mold is in a horizontal plane, so that the obtained mold has a uniform thickness
  • the substrate is especially suitable for the preparation of microneedle molds.
  • the uniformity of the manufacturing parameters is controlled by the control mechanism, so as to improve the consistency of the quality of the molds manufactured in batches.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

本发明提供了一种模具的制备装置及制备方法，所述制备装置包括成型组件，所述成型组件包括模具台和阳模具，所述模具台的上表面设有一凹陷区，所述阳模具用于设置在所述凹陷区的底面上，且所述阳模具的高度小于所述凹陷区的深度该制备装置可用于通过转模法制备批量制备模具，提高模具的生产效率。

Description

一种模具的制备装置及制备方法 技术领域
本发明涉及模具制造技术领域，具体涉及一种模具的制备装置及制备方法。
背景技术
利用聚合物制备微针时需要使用硅胶微针阴模具，硅胶微针阴模具有多种制备方法，其中一种制备方法是利用高能激光束在固体硅胶板上烧蚀形成微针凹槽，另一种制备方法为硅胶转模法。
利用高能激光束烧蚀的方法简单、制作速度快，适合于面积较大的硅胶微针阴模具的制造。但是硅胶烧蚀后表面较为粗糙，且烧蚀残渣滞留在微针凹槽内难以清除，对模具的后续使用带来不利影响。
硅胶转模法也存在诸多缺点：制作大面积的硅胶微针阴模具时，硅胶微针阴模具的基底极易出现厚度不均匀的情况，导致后续制备微针时，聚合物溶液聚集在基底厚度较薄处，导致微针成品率降低。该方法需要经历配液、浇注、脱泡、加热、冷却及脱模等过程，致使制作周期较长，而且硅胶溶液配制后，因受环境温度、放置时间等因素的影响导致硅胶溶液的黏度不断增大，影响最终得到的硅胶微针阴模具的质量。不仅如此，由于制备过程中存在诸多影响因素，导致多次生产的硅胶微针阴模具的一致性不佳，不利于批量化生产。硅胶转模法的另一种实现方式利用注塑设备在微针阳模具上进行注塑，但这需要提供与微针阳模具配套的模架，增加生产成本，还降低不同规格的硅胶微针阴模具的制备灵活性，而且也存在生产周期长的问题。不仅如此，注塑时的注胶压力较大，因此微针阳模具的强度需要足够大，限制了其材料的选择，同时进一步增加了生产成本。
发明内容
本发明的目的在于提供一种模具的制备装置及制备方法，该制备模具可用于批量制备模具。
为实现上述目的，本发明提供了一种模具的制备装置，包括成型组件，所述成型组件包括模具台和阳模具，所述模具台的上表面设有一凹陷区，所述阳模具用于设置在所述凹陷区的底面上，且所述阳模具的高度小于所述凹陷区的深度。
可选地，所述阳模具包括基板，所述基板的上表面为平面；所述制备装置还包括调节机构，所述调节机构用于驱使所述阳模具运动，并使所述基板的上表面处于水平面。
可选地，所述基板的下表面以及所述凹陷区的底面均为平面；所述调节机构用于驱使所述模具台运动并使所述凹陷区的底面处于一水平面，进而使得所述阳模具运动并使所述基板的上表面处于另一水平面。
可选地，所述调节机构包括运动台，所述运动台被配置为在外力的作用下运动；所述运动台设置于所述成型组件的下方并承载所述成型组件。
可选地，所述凹陷区用于装载液体原料，且所述基板的下表面和/或所述凹陷区的底面上设有环形密封圈，所述密封圈用于阻止所述液体原料流入所述基板的下表面与所述凹陷区的底面之间的区域。
可选地，所述凹陷区用于装载液体原料，所述液体原料浸没所述阳模具并固化形成模具；所述制备装置还包括脱取机构，所述脱取机构用于使所述成型组件与所述模具分离。
可选地，所述脱取机构包括脱模组件和取模组件，所述脱模组件包括第一伸缩杆和第一动力装置，所述第一伸缩杆竖直布置，所述第一伸缩杆穿过模具台并与所述阳模具连接，所述第一动力装置用于驱使所述第一伸缩杆伸缩；所述取模组件包括第二伸缩杆、第二动力装置和承托部，所述第二伸缩杆水平布置，所述第二动力装置用于驱使所述第二伸缩杆伸缩，所述承托部与所述第二伸缩杆连接，并用于承托所述模具；
所述制备装置被配置为当所述第一动力装置驱使所述第一伸缩杆伸长时，所述第一伸缩杆带动所述阳模具向上运动，并使所述阳模具及所述模具脱离所述模具台；当所述第二动力装置驱使所述第二伸缩杆伸长时，所述第二伸缩杆带动所述承托部运动并使所述承托部承托所述模具，当所述第一动 力装置驱使所述第一伸缩杆缩短时，所述阳模具向下运动并使所述阳模具与所述模具分离。
可选地，所述成型装置还被配置为当所述第二动力装置驱动所述第二伸缩杆缩短时，所述第二伸缩杆带动所述模具远离所述成型组件。
可选地，所述阳模具与所述第一伸缩杆可拆卸地连接。10、根据权利要求7所述的模具的制备装置，其特征在于，所述制备装置还包括箱体和真空发生元件，所述箱体上设有取模窗口，所述取模窗口处设有门组件，所述门组件用于封闭所述取模窗口；所述真空发生元件用于在所述箱体内产生真空环境；
所述成型组件及所述脱模组件的至少部分结构设置于所述箱体内，所述取模组件设置在所述箱体的外部，且所述第二伸缩杆用于穿过所述取模窗口，以使所述承托部进入所述箱体内并承托所述模具。
可选地，所述制备装置还包括加热组件，用于对所述成型组件加热。
可选地，所述制备装置还包括原料供应组件，所述原料供应组件用于向所述凹陷区浇注液体原料。
可选地，所述液体原料包括至少两种组分；所述原料供应组件包括多个储液罐和多个计量机构，每个所述储液罐用于存储所述液体原料的一种组分，所述计量机构与所述储液罐对应地设置，并用于分别计量所述液体原料的每种组分的量；
所述原料供应组件还包括混合机构，用于将所述液体原料的各个组分混合均匀并浇注至所述凹陷区。
可选地，所述制备装置还包括控制组件，与所述原料供应机构通信连接，并用于控制所述液体原料的各个组分的量、各个组分的混合速度、以及所述液体原料的浇注速度的至少一者；和/或，当所述制备装置包括箱体和真空发生元件时，所述控制组件还与所述真空发生元件连接，用于控制所述箱体内的真空度；和/或，所述控制组件还与所述加热组件通信连接，并用于将所述成型组件的温度控制在预定范围内。
可选地，所述阳模具包括基板和针状体，所述针状体设置于所述基板的 上表面上。
为实现上述目的，本发明还提供了一种模具的制备方法，基于如前任一项所述的模具的制备装置，其特征在于，所述制备方法包括如下步骤：
步骤S10：向所述凹陷区浇注液体原料，并使所述液体原料浸没所述阳模具；
步骤S20：使所述液体原料固化，形成所述模具。
可选地，在所述步骤S10之前还包括步骤S00：驱使所述阳模具运动，以使所述阳模具之基板的上表面位于水平面。
可选地，所述液体原料包括至少两种组分，所述制备装置还包括原料供应机构；
所述步骤S10包括：所述原料供应机构根据所述液体原料的配比将各个组分混合后以预定速度浇注至所述凹陷区。
可选地，所述步骤S20包括：将所述成型组件加热至第一预定温度，以使所述液体原料固化。
可选地，所述成型方法还包括步骤S01：将所述成型组件加热至第二预定温度；
所述步骤S01在所述步骤S00之后以及所述步骤S10之前执行。
可选地，所述成型组件容置于一箱体内；
所述成型方法还包括步骤S02：使所述箱体内产生真空环境；所述步骤S02在所述步骤S10之前执行；
所述成型方法还包括步骤S11：向所述箱体内灌注气体，以使所述箱体内的压力恢复至常压；所述步骤S11在所述步骤S10之后执行。
与现有技术相比，本发明的模具的制备装置及制备方法具有如下优点：
前述的模具的制备装置包括成型组件，所述成型组件包括模具台和阳模具，所述模具台的上表面设有一凹陷区，所述阳模具用于设置在所述凹陷区的底面上，且所述阳模具的高度小于所述凹陷区的深度。如此，将液体原料浇注至所述凹陷区并浸没所述阳模具，待所述液体原料固化后即可形成与所述阳模具相匹配的模具，该制备装置可用于批量制备所述模具，提高模具的 制作效率。
进一步地，所述阳模具包括基板，所述基板的上表面为平面；所述制备装置还包括调节机构，所述调节机构用于驱使所述阳模具运动，以使所述基板的上表面处于水平面。这样做是因为，所述液体原料的液面与基板的上表面之间的部分固化即为所述模具的基底，而在浇注液体原料前，预先利用所述调节机构调节所述阳模具的上表面处于水平面，也即预先调整所述阳模具的上表面与所述液体原料的液面平行，因此所述模具的基底具有均一的厚度。
进一步地，所述制备装置还包括脱取机构，其可以在液体原料固化后就进行脱模并转移所述模具，如此当利用所述制备装置连续生产模具时，可节省模具的冷却时间，提高生产效率。
进一步地，所述制备装置还包括原料供应组件，所述原料供应组件可包括多个储液罐、多个计量机构以及混合机构，多个所述储液罐用于分别存储液体原料的不同组分，多个计量机构用于根据液体原料的配比计量不同组分的量，然后利用所述混合机构混合多个组分后再浇注至所述凹陷区，如此可实现液体原料的现配现用，避免液体原料配制后久置而对模具的质量带来不利影响。
再进一步地，所述制备装置还包括控制组件，所述控制组件用于控制模具成型过程中的各个参数例如与原料供应组件通信连接，以控制液体原料的供应，与加热机构通信连接，控制加热温度等，提高模具批量生产时的一致性。
附图说明
附图用于更好地理解本发明，不构成对本发明的不当限定。其中：
图1是本发明根据一实施例所提供的模具的制备装置的结构示意图；
图2是本发明根据一实施例所提供的模具的制备装置的局部放大示意图。
[附图标记说明如下]：
100-成型组件，110-模具台，111-凹陷区，120-阳模具，121-基板，122-针状体；
200-调节机构；
310-电热板；
410-箱体，411-门组件，420-真空发生元件；
500-原料供应组件，510-储液罐，520-计量机构，530-混合机构；
600-脱取机构，610-脱模组件，611-第一动力装置，612-第一伸缩杆，620-取模组件，621-第二动力装置，622-第二伸缩杆，623-承托部；
700-控制组件，710-第一控制单元，720-第二控制单元。
具体实施方式
以下通过特定的具体实例说明本发明的实施方式，本领域技术人员可由本说明书所揭露的内容轻易地了解本发明的其他优点与功效。本发明还可以通过另外不同的具体实施方式加以实施或应用，本说明书中的各项细节也可以基于不同观点与应用，在没有背离本发明的精神下进行各种修饰或改变。需要说明的是，本实施例中所提供的图示仅以示意方式说明本发明的基本构想，遂图式中仅显示与本发明中有关的组件而非按照实际实施时的组件数目、形状及尺寸绘制，其实际实施时各组件的型态、数量及比例可为一种随意的改变，且其组件布局型态也可能更为复杂。
另外，以下说明内容的各个实施例分别具有一或多个技术特征，然此并不意味着使用本发明者必需同时实施任一实施例中的所有技术特征，或仅能分开实施不同实施例中的一部或全部技术特征。换句话说，在实施为可能的前提下，本领域技术人员可依据本发明的公开内容，并视设计规范或实作需求，选择性地实施任一实施例中部分或全部的技术特征，或者选择性地实施多个实施例中部分或全部的技术特征的组合，借此增加本发明实施时的弹性。
如在本说明书中所使用的，单数形式“一”、“一个”以及“该”包括复数对象，复数形式“多个”包括两个以上的对象，除非内容另外明确指出外。如在本说明书中所使用的，术语“或”通常是以包括“和/或”的含义而进行使用的，除非内容另外明确指出外，以及术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接。 可以是机械连接，也可以是电连接。可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
为使本发明的目的、优点和特征更加清楚，以下结合附图对本发明作进一步详细说明。需说明的是，附图均采用非常简化的形式且均使用非精准的比例，仅用以方便、明晰地辅助说明本发明实施例的目的。附图中相同或相似的附图标记代表相同或相似的部件。
图1示出了本发明实施例所提供的模具的制备装置的结构示意图，图2是所述制备装置的局部放大示意图。请参考图1及图2，所述制备装置包括成型组件100，所述成型组件100包括模具台110和阳模具120，所述模具台110的上表面设有一凹陷区111。所述阳模具120用于设置在所述凹陷区111的底面上，且所述阳模具120的高度小于所述凹陷区111的深度。本实施例中，所述阳模具120是指用于制作模具的原模型，其形状模仿产品的最终形状。以所述模具是用于生成微针的模具为例，所述阳模具120可包括基板121和针状体122，所述针状体122竖直地设置于所述基板121的上表面，所述针状体是指具有尖端的凸型结构。所述阳模具120的材质可以为金属、硅或强度足够的聚合物等。所述凹陷区111的深度是指所述凹陷区111在竖直方向上的尺寸，所述阳模具120的高度是指所述基板121在竖直方向上的尺寸与所述针状体122在竖直方向上的尺寸之和，所述制备装置可用于转模法生产模具，提高模具的生产效率。此外，还优选所述凹陷区111的底面的面积应大于所述基板121的面积，方便后续脱模。
进一步地，所述基板121的上表面为平面，且所述制备装置还包括调节机构200，所述调节机构200用于驱使所述阳模具120运动，并使所述基板121的上表面处于水平面。利用所述制备装置生产所述模具时，首先确定所述阳模具120之基板121的上表面是是否处于水平面，若否，则利用所述调节机构200驱使所述阳模具120运动至所述基板121的上表面处于水平面。接着，向所述凹陷区111浇注液体原料，并使所述液体原料浸没所述阳模具120。 本领域技术人员应知晓所述液体原料固化后即形成所述模具，其中位于液面与所述基板121的上表面之间的部分液体原料固化后形成所述模具的基底。
也就是说，本发明实施例中，所述基板121的上表面处于水平面时才可以用于成型所述模具，由于液体原料的液面处于水平面，此时所述基板121的上表面与所述液体原料的液面相互平行，由此可使所述模具的基底具有均一的厚度，在后续利用所述模具制造微针时，提高所述微针成型率。本实施例中，优选所述基板121的上表面的平面度小于或等于0.05mm，以减小误差，提高基底的均匀性。本领域技术人员应理解，所述调节机构200用于驱使所述阳模具120在竖直平面上摆动，进而调整所述基板121的上表面的水平度。可选地，所述基板121的下表面以及所述凹陷区111的底面均为平面，这样所述调节机构200可通过驱使所述模具台110运动并使所述凹陷区111的底面处于一水平面，以达到驱使所述阳模具120运动并使所述基板121的上表面处于另一水平面的目的。本领域技术人员应理解，由于所述基板121具有一定的厚度，因而在调节之后，所述凹陷区111的底面与所述基板121的上表面处于不同的水平面。
所述调节机构200驱使所述阳模具120运动的过程中，可通过水平仪监测所述基板121的上表面是否处于水平面，所述水平仪优选为电子式水平仪或电感式水平仪。在一些实施例中，所述水平仪安装于所述基板121的上表面，并用于直接监测所述基板121的上表面是否处于水平面。在另一些实施例中，所述调节机构200包括运动台，所述运动台的上表面可以为平面，并承载所述成型组件100(包括直接承载所述成型组件100的情形，也包括间接承载所述成型组件100的情形)，以使所述基板121的上表面与所述运动台的上表面平行。所述运动台被配置为在外力的作用下运动(例如在一第三驱动装置的驱动下运动)，进而驱使所述模具台110运动，进而驱使所述基板121运动。这种情形下，所述水平仪可以设置在所述运动台的上表面上，通过监测所述运动台的上表面是否处于水平面来间接地监测所述基板121的上表面是否处于水平面。所述运动台的材质可以为金属或大理石。
优选地，所述制备装置还包括加热组件，所述加热组件用于对所述成型 组件100进行加热，进而所述成型组件100将热量传递至所述液体原料，以使所述液体原料在预定温度下固化，加速固化速度，缩短模具的成型时间，并且所述固化温度保持稳定，也减少因固化温度波动对模具的质量产生影响。可选地，所述加热组件包括电热板310，所述电热板310设置在所述运动台上，所述成型组件100设置在所述电热板310上(也即，所述运动台通过所述电热板310间接地承载所述成型组件100)。
进一步地，所述制备装置包括一箱体410和真空发生元件420，所述箱体410可用于容纳所述成型组件100、所述电热板310以及所述运动台。也即，所述模具在所述箱体410内成型。所述箱体410上还设有一出气口(图中未标注)、一进气口(图中未示出)和一取模窗口(图中未标注)。所述真空发生元件420例如是真空泵或真空发生器，所述真空发生元件420与所述出气口连通，用于使所述箱体410内产生真空环境，所述进气口处设有第一阀门(图中未示出)，当所述第一阀门开启时，允许外界空气进入所述箱体410。所述取模窗口处设置有门组件411，当所述门组件411关闭时，所述门组件411封闭所述取模窗口，当所述门组件411开启时，操作者或者一机械机构(如后文所述的取模组件620)可通过所述取模窗口将已成型的模具移出所述箱体410。优选地，所述门组件411为电控机构。
进一步地，所述制备装置还包括原料供应组件500，所述原料供应组件500用于穿过所述箱体410的壁并向所述凹陷区111浇注所述液体原料。在浇注所述液体原料之前，所述第一阀门及所述门组件411均处于关闭状态，且所述真空发生元件420工作并使所述箱体410内部处于真空环境。也即，所述液体原料的浇注在真空环境下进行，这样做，可以避免液体原料中混入气体，从而在固化时无需对液体原料进行脱泡，节省时间。
在一些实施例中，所述液体原料由至少两种组分混合而成时，此时所述原料供应组件500可包括多个储液罐510、多个计量机构520和一个混合机构530。每个所述储液罐500用于存储所述液体原料的一种组分。多个所述计量机构520与多个所述储液罐510对应设置，并分别用于计量每种组分的量。所述混合机构530用于将各个组分混合均匀以得到所述液体原料，并将所述 液体原料灌注至所述凹陷区111。本领域技术人员可以理解，所述混合机构530可以是现有技术中任意合适的混合搅拌机构，其出口端可设置有第二阀门(图中未示出)及管道(图中未示出)，所述管道通过所述第二阀门与所述混合机构530连通，且所述管道用于穿过所述箱体410的壁，并将所述液体原料输送至所述凹陷区111。如此一来，所述原料供应组件500可以实现所述液体原料的现混现用，避免液体原料配制后久置导致黏度等性能发生变化，进而对模具的质量产生不利影响。
进一步地，所述制备装置还包括脱取机构600，所述脱取机构600用于使所述成型组件100与所述模具分离，且还用于使所述模具远离所述成型组件100并转移至所述箱体410的外部。
详细地，所述运动台上设有第一通孔、所述电热板310上设有第二通孔，所述模具台110上设有第三通孔，所述第三通孔、所述第二通孔及所述第一通孔对齐设置。所述脱取机构600包括脱模组件610和取模组件620。在一个非限制性的实施例中，所述脱模组件610包括第一动力装置611和第一伸缩杆612，所述第一动力装置611既可以设置在所述箱体410的内部，也可以设置在所述箱体410的外部。所述第一伸缩杆612竖直布置，且所述第一伸缩杆612的下端与所述第一动力装置611的输出端连接，所述第一伸缩杆612的上端依次穿过所述第一通孔、所述第二通孔及所述第三通孔并与所述阳模具120的所述基板121之下表面连接。所述第一伸缩杆612在所述第一动力装置611的驱动下伸长或缩短。可以理解，所述脱模组件610被配置为随所述阳模具120的运动而运动，例如所述脱模组件610之所述第一动力装置611与所述运动台连接，并随所述运动台同步运动，以避免所述第一伸缩612对所述阳模具120的运动造成干涉。所述取模组件620可设置在所述箱体410的外部，并包括第二动力装置621、第二伸缩杆622和承托部623，所述第二伸缩杆622水平布置，并与所述箱体410的所述取模窗口的位置相对应，且其一端连接于所述第二动力装置621的输出端，另一端与所述承托部623连接。所述第二伸缩杆622在所述第二动力装置621的驱使下伸长或缩短。
在所述液体原料固化后，所述第一动力装置611可驱使所述第一伸缩杆 612伸长，从而所述第一伸缩杆612带动所述阳模具120向上运动，并使所述阳模具120及所述模具脱离所述模具台110。然后所述第二动力装置621驱使所述第二伸缩杆622伸长，所述第二伸缩杆622带动所述承托部523穿过所述取模窗口(此时所述门组件411开启)，并抵达所述模具的下方以承托所述模具。接着，所述第一动力装置611驱使所述第一伸缩杆612缩短，并带动所述阳模具120向下运动，由于所述模具被所述承托部623承托，因此所述阳模具120与所述模具分离，并回到初始位置。最后，所述第二动力装置621驱使所述第二伸缩杆622缩短，以使所述承托部623携带所述模具移动至所述箱体410外部。
本实施例中利用所述取脱机构完成模具的脱模及取出，不必人工操作，因此在利用所述制备装置批量地生产所述模具时，可在所述液体原料固化后即执行该操作，无需等待模具冷却，缩短生产周期。
此外，通过所述第一伸缩杆612与所述阳模具120连接，还可以使所述阳模具120的位置固定，提高批量生产时模具的一致性。进一步地，本实施例还优选所述阳模具120与所述第一伸缩杆612通过螺纹或其他任意合适的方式可拆卸地连接，方便更换所述阳模具120。另外，本发明实施例对所述承托部623的形状没有特别限制，其可以根据实际需要设计，只要其能够承托所述模具即可。
本领域技术人员可理解，所述基板121的下表面与所述凹陷区111的底面之间一般会有微小间隙，导致两者不能紧密贴合。当所述液体原料的黏度大、流动性差时，所述液体原料进入所述凹陷区111后不会流入基板121的下表面与所述凹陷区111的底面之间的区域。但是当所述液体原料的黏度较小且流动性较好时，所述液体原料会流入基板121的下表面及所述凹陷区111之间，甚至进一步甚至流入所述第三通孔、所述第二通孔及所述第一通孔。针对此问题，所述基板121的下表面和/或所述凹陷区111的底面上设有环形密封圈，所述密封圈用于阻止所述液体原料流入所述基板121的下表面与所述凹陷区111的底面之间的区域，进而阻止所述液体原料流入所述第三通孔、所述第二通孔及所述第一通孔。
进一步地，所述制备装置还包括控制组件700，所述控制组件700用于控制所述模具成型过程中的各个参数。例如，所述控制组件700与所述原料供应组件500通信连接，并用于控制所述液体原料的各个组分的量、各个组分的混合速度、所述液体原料的灌注量、所述液体原料的灌注速度。所述加热组件还包括设置于所述电热板310内的温度传感器，所述控制组件700还与加热组件通信连接，用于将所述电热板310的温度控制在预定范围内，进而将所述成型组件100的温度控制在预定范围内。以及，所述控制组件700还用于与所述门组件411、所述取模机构600、所述真空发生元件420以及所述第一阀门通信连接，用于控制所述门组件411的启闭、所述取模机构600的脱模参数、所述箱体410的真空度，以及所述第一阀门的启闭。如此，可对所述模具的成型过程进行精准控制，提高批量生产时模具质量的一致性。本实施例中，所述控制组件可为一体式结构，或者，所述控制组件也可以包括多个分体的控制单元，例如包括第一控制单元710和第二控制单元720，所述第一控制单元710与所述原料供应组件500、所述门组件411、所述取模机构600及所述第一阀门通信连接，所述第二控制单元720与所述加热组件通信连接。
进一步地，本发明实施例还提供了一种模具的制备方法，其利用前述的制备装置生产模具。所述制备方法包括如下步骤：
步骤S10：向所述凹陷区111浇注所述液体原料，并使所述液体原料浸没所述阳模具120。本实施例中，利用所述原料供应组件500向所述凹陷区111浇注所述液体原料。
步骤S20：使所述液体原料固化，形成所述模具。本实施例中，优选利用所述加热组件300将所述成型组件100加热至第一预定温度，使所述液体原料在所述第一预定温度下固化。
优选地，所述制备方法还包括步骤S00：驱使所述阳模具120运动，以使所述阳模具120的上表面处于水平面。
优选地，所述成型方法还包括步骤S01：预热所述成型组件100。也即在执行所述步骤S10之后以及所述步骤S20之前，将所述成型组件100加热至 第二预定温度预热所述成型组件100。所述第二预定温度小于或等于所述第一预定温度。
另外，当所述制备装置包括所述箱体410和所述真空发生元件420时，所述成型方法还包括步骤S02：开启所述真空发生元件420，以在所述箱体410内产生真空环境。所述步骤S02在所述步骤S10之前执行即可，其可以在所述步骤S01之前执行，也可以与所述步骤S01同步执行，还可以在所述步骤S01之后执行。
以及，所述成型方法还包括步骤S11：开启所述进气口处的阀门，以使空气进入所述箱体410，并使所述箱体410内的压力恢复至常压。所述步骤S11在所述步骤S10之后执行,其可以与所述步骤S20同时执行。
此外，所述成型方法还包括步骤S30：利用所述脱取机构将所述模具转移至所述箱体外部。所述步骤S30在所述步骤S20之后执行。本领域技术人员可理解，在连续进行生产时，在每个所述模具固化后即可利用所述脱取机构600使所述模具脱模并将所述模具转移，此时所述成型组件100尚未冷却，因而在下一个模具加工前无需再次对所述成型组件100进行预热，也即，所述步骤S01只需要在第一个模具加工前执行一次。
本发明实施例所提供的技术方案能够用于批量地制备模具，提高模具的生产效率。尤其地，当所述制备装置还包括调节机构时，在制备之前，利用所述调节机构驱使所述阳模具运动至所述阳模具之基板的上表面处于水平面，可以使获得的模具具有均一厚度的基底，特别适用于微针模具的制备。此外，本发明中通过控制机构来控制制备参数的均一性，改善批量制备的模具的质量的一致性。
虽然本发明披露如上，但并不局限于此。本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (21)

  1. 一种模具的制备装置，其特征在于，包括成型组件，所述成型组件包括模具台和阳模具，所述模具台的上表面设有一凹陷区，所述阳模具用于设置在所述凹陷区的底面上，且所述阳模具的高度小于所述凹陷区的深度。
  2. 根据权利要求1所述的模具的制备装置，其特征在于，所述阳模具包括基板，所述基板的上表面为平面；所述制备装置还包括调节机构，所述调节机构用于驱使所述阳模具运动，并使所述基板的上表面处于水平面。
  3. 根据权利要求2所述的模具的制备装置，其特征在于，所述基板的下表面以及所述凹陷区的底面均为平面；所述调节机构用于驱使所述模具台运动并使所述凹陷区的底面处于一水平面，进而使得所述阳模具运动并使所述基板的上表面处于另一水平面。
  4. 根据权利要求3所述的模具的制备装置，其特征在于，所述调节机构包括运动台，所述运动台被配置为在外力的作用下运动；所述运动台设置于所述成型组件的下方并承载所述成型组件。
  5. 根据权利要求3所述的模具的制备装置，其特征在于，所述凹陷区用于装载液体原料，且所述基板的下表面和/或所述凹陷区的底面上设有环形密封圈，所述密封圈用于阻止所述液体原料流入所述基板的下表面与所述凹陷区的底面之间的区域。
  6. 根据权利要求1所述的模具的制备装置，其特征在于，所述凹陷区用于装载液体原料，所述液体原料浸没所述阳模具并固化形成模具；所述制备装置还包括脱取机构，所述脱取机构用于使所述成型组件与所述模具分离。
  7. 根据权利要求6所述的模具的制备装置，其特征在于，所述脱取机构包括脱模组件和取模组件，所述脱模组件包括第一伸缩杆和第一动力装置，所述第一伸缩杆竖直布置，所述第一伸缩杆穿过模具台并与所述阳模具连接，所述第一动力装置用于驱使所述第一伸缩杆伸缩；所述取模组件包括第二伸缩杆、第二动力装置和承托部，所述第二伸缩杆水平布置，所述第二动力装置用于驱使所述第二伸缩杆伸缩，所述承托部与所述第二伸缩杆连接，并用 于承托所述模具；
    所述制备装置被配置为当所述第一动力装置驱使所述第一伸缩杆伸长时，所述第一伸缩杆带动所述阳模具向上运动，并使所述阳模具及所述模具脱离所述模具台；当所述第二动力装置驱使所述第二伸缩杆伸长时，所述第二伸缩杆带动所述承托部运动并使所述承托部承托所述模具，当所述第一动力装置驱使所述第一伸缩杆缩短时，所述阳模具向下运动并使所述阳模具与所述模具分离。
  8. 根据权利要求7所述的模具的制备装置，其特征在于，所述成型装置还被配置为当所述第二动力装置驱动所述第二伸缩杆缩短时，所述第二伸缩杆带动所述模具远离所述成型组件。
  9. 根据权利要求7所述的模具的制备装置，其特征在于，所述阳模具与所述第一伸缩杆可拆卸地连接。
  10. 根据权利要求7所述的模具的制备装置，其特征在于，所述制备装置还包括箱体和真空发生元件，所述箱体上设有取模窗口，所述取模窗口处设有门组件，所述门组件用于封闭所述取模窗口；所述真空发生元件用于在所述箱体内产生真空环境；
    所述成型组件及所述脱模组件的至少部分结构设置于所述箱体内，所述取模组件设置在所述箱体的外部，且所述第二伸缩杆用于穿过所述取模窗口，以使所述承托部进入所述箱体内并承托所述模具。
  11. 根据权利要求1或10所述的模具的制备装置，其特征在于，所述制备装置还包括加热组件，用于对所述成型组件加热。
  12. 根据权利要求11所述的模具的制备装置，其特征在于，所述制备装置还包括原料供应组件，所述原料供应组件用于向所述凹陷区浇注液体原料。
  13. 根据权利要求12所述的模具的制备装置，其特征在于，所述液体原料包括至少两种组分；所述原料供应组件包括多个储液罐和多个计量机构，每个所述储液罐用于存储所述液体原料的一种组分，所述计量机构与所述储液罐对应地设置，并用于分别计量所述液体原料的每种组分的量；
    所述原料供应组件还包括混合机构，用于将所述液体原料的各个组分混 合均匀并浇注至所述凹陷区。
  14. 根据权利要求13所述的模具的制备装置，其特征在于，所述制备装置还包括控制组件，与所述原料供应机构通信连接，并用于控制所述液体原料的各个组分的量、各个组分的混合速度、以及所述液体原料的浇注速度的至少一者；和/或，当所述制备装置包括箱体和真空发生元件时，所述控制组件还与所述真空发生元件连接，用于控制所述箱体内的真空度；和/或，所述控制组件还与所述加热组件通信连接，并用于将所述成型组件的温度控制在预定范围内。
  15. 根据权利要求1所述的模具的制备装置，其特征在于，所述阳模具包括基板和针状体，所述针状体设置于所述基板的上表面上。
  16. 一种模具的制备方法，基于如权利要求1-15中任一项所述的模具的制备装置，其特征在于，所述制备方法包括如下步骤：
    步骤S10：向所述凹陷区浇注液体原料，并使所述液体原料浸没所述阳模具；
    步骤S20：使所述液体原料固化，形成所述模具。
  17. 根据权利要求16所述的模具的制备方法，其特征在于，在所述步骤S10之前还包括步骤S00：驱使所述阳模具运动，以使所述阳模具之基板的上表面位于水平面。
  18. 根据权利要求16所述的模具的制备方法，其特征在于，所述液体原料包括至少两种组分，所述制备装置还包括原料供应机构；
    所述步骤S10包括：所述原料供应机构根据所述液体原料的配比将各个组分混合后以预定速度浇注至所述凹陷区。
  19. 根据权利要求16所述的模具的制备方法，其特征在于，所述步骤S20包括：将所述成型组件加热至第一预定温度，以使所述液体原料固化。
  20. 根据权利要求17所述的模具的制备方法，其特征在于，所述成型方法还包括步骤S01：将所述成型组件加热至第二预定温度；
    所述步骤S01在所述步骤S00之后以及所述步骤S10之前执行。
  21. 根据权利要求20所述的模具的制备方法，其特征在于，所述成型组 件容置于一箱体内；
    所述成型方法还包括步骤S02：使所述箱体内产生真空环境；所述步骤S02在所述步骤S10之前执行；
    所述成型方法还包括步骤S11：向所述箱体内灌注气体，以使所述箱体内的压力恢复至常压；所述步骤S11在所述步骤S10之后执行。
PCT/CN2021/109125 2021-06-18 2021-07-29 一种模具的制备装置及制备方法 WO2022262086A1 (zh)

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