CN215661381U

CN215661381U - Preparation device of mold

Info

Publication number: CN215661381U
Application number: CN202121361970.6U
Authority: CN
Inventors: 黄远; 颜平; 刘龙; 陈宾文; 曲秋羽
Original assignee: Suzhou Reveda Medical Biotech Co Ltd
Current assignee: Suzhou Reveda Medical Biotech Co Ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2022-01-28
Anticipated expiration: 2031-06-18

Abstract

The utility model provides a preparation device of a mold, which comprises a forming assembly, wherein the forming assembly comprises a mold table and a male mold, a depressed area is arranged on the upper surface of the mold table, the male mold is arranged on the bottom surface of the depressed area, and the height of the male mold is smaller than the depth of the depressed area.

Description

Preparation device of mold

Technical Field

The utility model relates to the technical field of mold manufacturing, in particular to a preparation device of a mold.

Background

When the polymer is used for preparing the microneedle, a silica gel microneedle female die is needed, the silica gel microneedle female die has various preparation methods, one preparation method is to use a high-energy laser beam to ablate on a solid silica gel plate to form a microneedle groove, and the other preparation method is a silica gel transfer molding method.

The method for ablating by the high-energy laser beam is simple, has high manufacturing speed and is suitable for manufacturing the silica gel micro-needle female die with larger area. However, the surface of the ablated silica gel is rough, and ablation residues are retained in the microneedle groove and are difficult to remove, so that the subsequent use of the mold is adversely affected.

Silica gel transfer molding also has a number of disadvantages: when a large-area silica gel microneedle female die is manufactured, the substrate of the silica gel microneedle female die is easily uneven in thickness, so that polymer solution is gathered at the position with a smaller substrate thickness when microneedles are manufactured subsequently, and the yield of the microneedles is reduced. The method needs to go through the processes of liquid preparation, pouring, defoaming, heating, cooling, demolding and the like, so that the manufacturing period is longer, and after the silica gel solution is prepared, the viscosity of the silica gel solution is continuously increased due to the influence of factors such as environmental temperature, standing time and the like, so that the quality of the finally obtained silica gel microneedle female mold is influenced. Moreover, due to a plurality of influencing factors existing in the preparation process, the consistency of the silica gel micro-needle female mold produced for many times is poor, and the mass production is not facilitated. Another implementation manner of the silica gel transfer molding method is to perform injection molding on the microneedle male mold by using injection molding equipment, but a mold frame matched with the microneedle male mold needs to be provided, so that the production cost is increased, the preparation flexibility of silica gel microneedle female molds with different specifications is reduced, and the problem of long production period also exists. Moreover, the injection pressure during injection molding is large, so that the strength of the microneedle positive mold needs to be large enough, the selection of materials is limited, and the production cost is further increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a preparation device of a mold, which can be used for preparing the mold in batches.

In order to achieve the above purpose, the present invention provides a mold manufacturing apparatus, which includes a molding assembly, wherein the molding assembly includes a mold table and a male mold, a recessed area is formed on an upper surface of the mold table, the male mold is configured to be disposed on a bottom surface of the recessed area, and a height of the male mold is smaller than a depth of the recessed area.

Optionally, the male mold comprises a substrate, and an upper surface of the substrate is a plane; the preparation device further comprises an adjusting mechanism, wherein the adjusting mechanism is used for driving the male die to move and enabling the upper surface of the substrate to be in a horizontal plane.

Optionally, the lower surface of the substrate and the bottom surface of the recessed region are both planar; the adjusting mechanism is used for driving the mould table to move and enabling the bottom surface of the concave area to be in one horizontal plane, and then enabling the male mould to move and enabling the upper surface of the substrate to be in the other horizontal plane.

Optionally, the adjustment mechanism comprises a motion stage configured to move under an external force; the motion table is arranged below the forming assembly and bears the forming assembly.

Optionally, the recessed area is used for loading liquid raw materials, and an annular sealing ring is arranged on the lower surface of the substrate and/or the bottom surface of the recessed area, and the annular sealing ring is used for preventing the liquid raw materials from flowing into a region between the lower surface of the substrate and the bottom surface of the recessed area.

Optionally, the recessed area is used for loading liquid raw materials, and the liquid raw materials submerge the male mould and solidify to form a mould; the preparation device further comprises a taking-off mechanism, and the taking-off mechanism is used for separating the forming assembly from the mold.

Optionally, the demolding mechanism comprises a demolding assembly and a mold taking assembly, the demolding assembly comprises a first telescopic rod and a first power device, the first telescopic rod is vertically arranged, the first telescopic rod penetrates through the mold table and is connected with the male mold, and the first power device is used for driving the first telescopic rod to stretch and retract; the mold taking assembly comprises a second telescopic rod, a second power device and a bearing part, the second telescopic rod is horizontally arranged, the second power device is used for driving the second telescopic rod to stretch, and the bearing part is connected with the second telescopic rod and used for bearing the mold;

the preparation device is configured to drive the male mold to move upwards and separate the male mold and the mold from the mold table when the first power device drives the first telescopic rod to extend; when the second power device drives the second telescopic rod to extend, the second telescopic rod drives the bearing part to move and enables the bearing part to bear the mold, and when the first power device drives the first telescopic rod to shorten, the male mold moves downwards and enables the male mold to be separated from the mold.

Optionally, 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 to move away from the molding assembly.

Optionally, the male mould is detachably connected with the first telescopic rod.

Optionally, the preparation device further comprises a box body and a vacuum generating element, wherein a mold taking window is arranged on the box body, a door assembly is arranged at the mold taking window, and the door assembly is used for closing the mold taking window; the vacuum generating element is used for generating a vacuum environment in the box body;

the molding assembly and at least part of the demolding assembly are arranged in the box body, the mold taking assembly is arranged outside the box body, and the second telescopic rod is used for penetrating through the mold taking window so that the bearing part enters the box body and bears the mold.

Optionally, the preparation device further comprises a heating assembly for heating the forming assembly.

Optionally, the preparation apparatus further comprises a raw material supply assembly for pouring liquid raw material into the recessed area.

Optionally, the liquid feedstock comprises at least two components; the raw material supply assembly comprises a plurality of liquid storage tanks and a plurality of metering mechanisms, each liquid storage tank is used for storing one component of the liquid raw materials, and the metering mechanisms are arranged corresponding to the liquid storage tanks and are used for respectively metering the amount of each component of the liquid raw materials;

the raw material supply assembly further comprises a mixing mechanism for uniformly mixing and pouring the components of the liquid raw material into the recessed area.

Optionally, the preparation apparatus further comprises a control component, communicatively connected to the raw material supply mechanism, for controlling at least one of an amount of each component of the liquid raw material, a mixing speed of each component, and a pouring speed of the liquid raw material; and/or, when the preparation device comprises a box body and a vacuum generating element, the control assembly is also connected with the vacuum generating element and is used for controlling the vacuum degree in the box body; and/or the control assembly is also in communication with the heating assembly and is used for controlling the temperature of the forming assembly within a predetermined range.

Optionally, the male mold comprises a substrate and a needle disposed on an upper surface of the substrate.

Compared with the prior art, the preparation device of the die has the following advantages:

the preparation device of the mold comprises a molding assembly, the molding assembly comprises a mold table and a male mold, a depressed area is formed in the upper surface of the mold table, the male mold is used for being arranged on the bottom surface of the depressed area, and the height of the male mold is smaller than the depth of the depressed area. Therefore, liquid raw materials are poured into the concave area and are immersed in the male die, the die matched with the male die can be formed after the liquid raw materials are solidified, and the preparation device can be used for preparing the die in batches and improving the manufacturing efficiency of the die.

Further, the male die comprises a substrate, wherein the upper surface of the substrate is a plane; the preparation device further comprises an adjusting mechanism, and the adjusting mechanism is used for driving the male die to move so that the upper surface of the substrate is in a horizontal plane. This is done because the part between the liquid surface of the liquid raw material and the upper surface of the substrate is solidified to be the base of the mold, and before the liquid raw material is poured, the upper surface of the male mold is adjusted to be in the horizontal plane in advance by the adjustment mechanism, that is, the upper surface of the male mold is adjusted to be parallel to the liquid surface of the liquid raw material in advance, so that the base of the mold has a uniform thickness.

Further, the preparation device also comprises a taking-off mechanism which can demould and transfer the mould after the liquid raw material is solidified, so that when the preparation device is used for continuously producing the mould, the cooling time of the mould can be saved, and the production efficiency is improved.

Further, the preparation device also comprises a raw material supply assembly, wherein the raw material supply assembly can comprise a plurality of liquid storage tanks, a plurality of metering mechanisms and a mixing mechanism, the liquid storage tanks are used for storing different components of the liquid raw materials respectively, the metering mechanisms are used for metering the amount of the different components according to the proportion of the liquid raw materials, and then the mixing mechanism is used for mixing the components and pouring the mixed components into the depressed area, so that the liquid raw materials can be prepared and used, and the adverse effect on the quality of a die caused by long-term placement of the prepared liquid raw materials is avoided.

Still further, the preparation device also comprises a control component, and the control component is used for controlling various parameters in the mould forming process, such as the communication connection with the raw material supply component, the supply of liquid raw materials, the communication connection with the heating mechanism, the control of heating temperature and the like, so that the consistency of the mould in batch production is improved.

Drawings

The drawings are included to provide a better understanding of the utility model and are not to be construed as unduly limiting the utility model. Wherein:

FIG. 1 is a schematic structural diagram of a mold manufacturing apparatus according to an embodiment of the present invention;

fig. 2 is a partially enlarged schematic view of a mold manufacturing apparatus according to an embodiment of the present invention.

[ reference numerals are described below ]:

100-molding component, 110-mold table, 111-recessed area, 120-positive mold, 121-substrate, 122-needle;

200-an adjustment mechanism;

310-electric heating plates;

410-box, 411-door assembly, 420-vacuum generating element;

500-raw material supply assembly, 510-liquid storage tank, 520-metering mechanism, 530-mixing mechanism;

600-demoulding mechanism, 610-demoulding component, 611-first power device, 612-first telescopic rod, 620-demoulding component, 621-second power device, 622-second telescopic rod, 623-supporting part;

700-control component, 710-first control unit, 720-second control unit.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.

Furthermore, each of the embodiments described below has one or more technical features, and thus, the use of the technical features of any one embodiment does not necessarily mean that all of the technical features of any one embodiment are implemented at the same time or that only some or all of the technical features of different embodiments are implemented separately. In other words, those skilled in the art can selectively implement some or all of the features of any embodiment or combinations of some or all of the features of multiple embodiments according to the disclosure of the present invention and according to design specifications or implementation requirements, thereby increasing the flexibility in implementing the utility model.

As used in this specification, the singular forms "a", "an" and "the" include plural referents, and the plural forms "a plurality" includes more than two referents unless the content clearly dictates otherwise. As used in this specification, the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise, and the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

To further clarify the objects, advantages and features of the present invention, a more particular description of the utility model will be rendered by reference to the appended drawings. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. The same or similar reference numbers in the drawings identify the same or similar elements.

Fig. 1 is a schematic structural diagram of a manufacturing apparatus of a mold according to an embodiment of the present invention, and fig. 2 is a partially enlarged schematic view of the manufacturing apparatus. Referring to fig. 1 and 2, the manufacturing apparatus includes a forming assembly 100, the forming assembly 100 includes a mold table 110 and a male mold 120, and a recessed area 111 is formed on an upper surface of the mold table 110. The male mold 120 is disposed on the bottom surface of the concave region 111, and the height of the male mold 120 is smaller than the depth of the concave region 111. In this embodiment, the male mold 120 is an original model for manufacturing a mold, and the shape thereof is similar to the final shape of the product. Taking the mold as an example of a mold for generating microneedles, the male mold 120 may include a base plate 121 and a needle 122, wherein the needle 122 is vertically disposed on an upper surface of the base plate 121, and the needle is a convex structure having a tip. The material of the male mold 120 may be metal, silicon, or a polymer having sufficient strength. The depth of the concave region 111 refers to the size of the concave region 111 in the vertical direction, the height of the male mold 120 refers to the sum of the size of the substrate 121 in the vertical direction and the size of the needle-shaped body 122 in the vertical direction, and the preparation device can be used for producing molds by a rotary mold method, so that the production efficiency of the molds is improved. In addition, the area of the bottom surface of the recessed region 111 should preferably be larger than that of the substrate 121, so as to facilitate the subsequent demolding.

Further, the upper surface of the substrate 121 is a plane, and the manufacturing apparatus further includes an adjusting mechanism 200, wherein the adjusting mechanism 200 is configured to drive the male mold 120 to move and to make the upper surface of the substrate 121 be at a horizontal plane. When the mold is produced by the manufacturing apparatus, it is first determined whether the upper surface of the base plate 121 of the male mold 120 is at a horizontal surface, and if not, the male mold 120 is driven by the adjusting mechanism 200 to move until the upper surface of the base plate 121 is at the horizontal surface. Next, a liquid raw material is poured into the recessed area 111, and the male mold 120 is immersed by the liquid raw material. One skilled in the art will appreciate that the liquid feedstock forms the mold upon curing, wherein a portion of the liquid feedstock between the liquid level and the upper surface of the substrate 121 forms the base of the mold upon curing.

That is to say, in the embodiment of the present invention, the upper surface of the substrate 121 may be used for molding the mold when the upper surface is in a horizontal plane, and since the liquid level of the liquid raw material is in a horizontal plane, the upper surface of the substrate 121 and the liquid level of the liquid raw material are parallel to each other, so that the substrate of the mold has a uniform thickness, and when microneedles are manufactured by using the mold subsequently, the microneedle molding rate is increased. In this embodiment, the flatness of the upper surface of the substrate 121 is preferably less than or equal to 0.05mm, so as to reduce errors and improve the uniformity of the substrate. As will be understood by those skilled in the art, the adjusting 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 base plate 121. Alternatively, the lower surface of the substrate 121 and the bottom surface of the recessed area 111 are both planar, so that the adjusting mechanism 200 can drive the mold stage 110 to move and the bottom surface of the recessed area 111 to be at one horizontal surface, so as to drive the male mold 120 to move and the upper surface of the substrate 121 to be at another horizontal surface. It will be understood by those skilled in the art that since the substrate 121 has a certain thickness, the bottom surface of the recess region 111 is at a different level from the upper surface of the substrate 121 after the adjustment.

During the movement of the male mold 120 driven by the adjusting mechanism 200, whether the upper surface of the substrate 121 is at the horizontal surface can be monitored by a level, preferably an electronic level or an inductive level. In some embodiments, the level is mounted on the upper surface of the substrate 121 and is used to directly monitor whether the upper surface of the substrate 121 is at a horizontal level. In other embodiments, the adjusting mechanism 200 includes a moving table, and the upper surface of the moving table may be a plane and may support the molding assembly 100 (including directly supporting the molding assembly 100 and indirectly supporting the molding assembly 100), so that the upper surface of the substrate 121 is parallel to the upper surface of the moving table. The motion stage is configured to move under an external force (e.g., driven by a third driving device), so as to drive the mold stage 110, and thus the substrate 121. In this case, the level gauge may be disposed on the upper surface of the moving stage to indirectly monitor whether the upper surface of the substrate 121 is at a horizontal level by monitoring whether the upper surface of the moving stage is at a horizontal level. The motion platform can be made of metal or marble.

Preferably, the preparation apparatus further comprises a heating component, the heating component is used for heating the molding component 100, and then the molding component 100 transfers heat to the liquid raw material, so that the liquid raw material is cured at a predetermined temperature, the curing speed is accelerated, the molding time of the mold is shortened, the curing temperature is kept stable, and the influence on the quality of the mold due to the fluctuation of the curing temperature is reduced. Optionally, the heating assembly comprises an electric heating plate 310, the electric heating plate 310 is disposed on the moving stage, and the molding assembly 100 is disposed on the electric heating plate 310 (i.e., the moving stage indirectly carries the molding assembly 100 via the electric heating plate 310).

Further, the manufacturing apparatus includes a case 410 and a vacuum generating unit 420, and the case 410 may be used to house the molding assembly 100, the electric heating plate 310, and the moving stage. That is, the mold is molded in the case 410. The box 410 is further provided with an air outlet (not shown), an air inlet (not shown) and a mold access window (not shown). The vacuum generating element 420 is, for example, a vacuum pump or a vacuum generator, the vacuum generating element 420 is communicated with the air outlet to generate a vacuum environment in the box 410, and the air inlet is provided with a first valve (not shown) to allow external air to enter the box 410 when the first valve is opened. The mold access window is provided with a door assembly 411, when the door assembly 411 is closed, the door assembly 411 closes the mold access window, and when the door assembly 411 is opened, an operator or a mechanical mechanism (such as a mold access assembly 620 described later) can move the molded mold out of the box 410 through the mold access window. Preferably, the door assembly 411 is an electrically controlled mechanism.

Further, the preparation apparatus further includes a raw material supply assembly 500, the raw material supply assembly 500 being adapted to supply the liquid raw material to the depressed area 111 through the wall of the case 410. Before the liquid material is poured, the first valve and the door assembly 411 are closed, and the vacuum generating element 420 operates to make the inside of the case 410 a vacuum atmosphere. That is, the pouring of the liquid material is performed in a vacuum environment, so that it is possible to avoid mixing of gas into the liquid material, and it is not necessary to deaerate the liquid material during curing, thereby saving time.

In some embodiments, where the liquid material is formed by mixing at least two components, the material supply assembly 500 may include a plurality of reservoirs 510, a plurality of metering mechanisms 520, and a mixing mechanism 530. Each of the fluid reservoirs 500 is adapted to store one component of the fluid material. The plurality of metering mechanisms 520 are disposed corresponding to the plurality of liquid reservoirs 510 and are used to meter the amount of each component, respectively. The mixing mechanism 530 is configured to mix the components uniformly to obtain the liquid raw material, and pour the liquid raw material into the recessed area 111. It will be appreciated by those skilled in the art that the mixing mechanism 530 can be any suitable mixing and stirring mechanism known in the art, and the outlet end of the mixing mechanism can be provided with a second valve (not shown) and a pipe (not shown) which is in communication with the mixing mechanism 530 through the second valve and which is adapted to pass through the wall of the housing 410 and deliver the liquid feedstock to the recessed area 111. In this way, the raw material supply assembly 500 can mix the liquid raw material at the present time, and prevent the viscosity and other properties from being changed due to long-term placement of the liquid raw material after preparation, thereby causing adverse effects on the quality of the mold.

Further, the manufacturing apparatus further includes a removing mechanism 600, wherein the removing mechanism 600 is used for separating the molding assembly 100 from the mold, and is also used for separating the mold from the molding assembly 100 and transferring the mold to the outside of the box 410.

In detail, a first through hole is formed in the motion table, a second through hole is formed in the electric heating plate 310, a third through hole is formed in the die table 110, and the third through hole, the second through hole and the first through hole are aligned. The ejector mechanism 600 includes an ejector assembly 610 and an ejector assembly 620. In a non-limiting embodiment, the stripper assembly 610 includes a first power device 611 and a first telescopic rod 612, and the first power device 611 is disposed inside the box 410 or outside the box 410. The first telescopic rod 612 is vertically arranged, 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 sequentially passes through the first through hole, the second through hole and the third through hole and is connected to the lower surface of the base plate 121 of the male mold 120. The first telescopic rod 612 is driven by the first power device 611 to extend or contract. It will be appreciated that the stripper assembly 610 is configured to move with the movement of the male mold 120, e.g., the first power means 611 of the stripper assembly 610 is connected to the moving stage and moves synchronously with the moving stage to avoid the first extension 612 from interfering with the movement of the male mold 120. The mold removing assembly 620 may be disposed outside the box body 410, and include a second power device 621, a second telescopic rod 622, and a supporting portion 623, where the second telescopic rod 622 is horizontally disposed and corresponds to the mold removing window of the box body 410, and one end of the second telescopic rod is connected to the output end of the second power device 621, and the other end of the second telescopic rod is connected to the supporting portion 623. The second telescopic rod 622 is driven by the second power device 621 to extend or contract.

After the liquid material is solidified, the first power device 611 may 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 and the mold are separated from the mold table 110. Then, 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 mold-taking window (at this time, the door assembly 411 is opened), and reaches the lower portion of the mold to support the mold. Then, the first power device 611 drives the first telescopic rod 612 to shorten and drives the male mold 120 to move downward, and the male mold 120 is separated from the mold and returns to the initial position because the mold is supported by the supporting portion 623. Finally, the second power device 621 drives the second telescopic rod 622 to shorten, so that the supporting portion 623 carries the mold to move to the outside of the box 410.

In this embodiment, the mold is released and removed by the removing mechanism without manual operation, so that the operation can be performed after the liquid material is solidified when the molds are mass-produced by the production apparatus, and the production cycle can be shortened without waiting for the mold to be cooled.

In addition, the first telescopic rod 612 is connected to the male mold 120, so that the position of the male mold 120 can be fixed, and the consistency of the mold during mass production can be improved. Further, in this embodiment, it is also preferable that the male mold 120 and the first telescopic rod 612 are detachably connected by a screw thread or any other suitable manner, so as to facilitate replacement of the male mold 120. In addition, the shape of the supporting portion 623 is not particularly limited in the embodiment of the present invention, and it may be designed according to actual needs as long as it can support the mold.

As will be appreciated by those skilled in the art, there is typically a slight gap between the bottom surface of the substrate 121 and the bottom surface of the recessed region 111, which results in a poor fit therebetween. When the liquid material has a high viscosity and poor fluidity, the liquid material does not flow into the region between the lower surface of the substrate 121 and the bottom surface of the recessed region 111 after entering the recessed region 111. However, when the viscosity of the liquid material is low and the fluidity is good, the liquid material flows between the lower surface of the substrate 121 and the recessed region 111, and even further flows into the third through hole, the second through hole, and the first through hole. In view of this problem, an annular sealing ring is disposed on the lower surface of the substrate 121 and/or the bottom surface of the recessed area 111, and the annular sealing ring is used to prevent the liquid raw material from flowing into the region between the lower surface of the substrate 121 and the bottom surface of the recessed area 111, and further prevent the liquid raw material from flowing into the third through hole, the second through hole, and the first through hole.

Further, the manufacturing apparatus further includes a control assembly 700, wherein the control assembly 700 is used for controlling various parameters in the mold forming process. For example, the control assembly 700 is communicatively coupled to the ingredient supply assembly 500 and is configured to control the amount of each component of the liquid ingredient, the mixing speed of each component, the poured amount of the liquid ingredient, and the poured speed of the liquid ingredient. The heating assembly further comprises a temperature sensor disposed in the electric heating plate 310, and the control assembly 700 is further in communication with the heating assembly and is configured to control the temperature of the electric heating plate 310 within a predetermined range, and further control the temperature of the molding assembly 100 within a predetermined range. And the control assembly 700 is further configured to be in communication connection with the door assembly 411, the mold taking mechanism 600, the vacuum generating element 420 and the first valve, and is configured to control opening and closing of the door assembly 411, demolding parameters of the mold taking mechanism 600, vacuum degree of the box 410 and opening and closing of the first valve. Therefore, the forming process of the die can be accurately controlled, and the consistency of the quality of the die during batch production is improved. In this embodiment, the control assembly may be an integrated structure, or the control assembly may also include a plurality of separate control units, for example, a first control unit 710 and a second control unit 720, where the first control unit 710 is communicatively connected to the raw material supply assembly 500, the door assembly 411, the mold removing mechanism 600, and the first valve, and the second control unit 720 is communicatively connected to the heating assembly.

Further, the embodiment of the utility model also provides a preparation method of the mold, which utilizes the preparation device to produce the mold. The preparation method comprises the following steps:

step S10: the liquid raw material is poured into the depressed area 111 and the male mold 120 is immersed by the liquid raw material. In this embodiment, the liquid material is poured into the recessed area 111 by the material supply assembly 500.

Step S20: solidifying the liquid raw material to form the mould. In this embodiment, the heating assembly 300 is preferably 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.

Preferably, the preparation method further includes step S00: the male mold 120 is driven to move so that the upper surface of the male mold 120 is in a horizontal plane.

Preferably, the molding method further includes step S01: the molding assembly 100 is preheated. That is, after the step S10 is performed 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.

In addition, when the preparation apparatus includes the case 410 and the vacuum generating element 420, the molding method further includes step S02: the vacuum generating element 420 is turned on to generate a vacuum environment within the case 410. The step S02 may be performed before the step S10, before the step S01, in synchronization with the step S01, or after the step S01.

And, the molding method further includes step S11: a valve at the air inlet is opened to allow air to enter the tank 410 and the pressure inside the tank 410 is restored to normal pressure. The step S11 is performed after the step S10, which may be performed simultaneously with the step S20.

Further, the molding method further includes step S30: and transferring the mold to the outside of the box body by using the taking-off mechanism. The step S30 is performed after the step S20. It will be appreciated by those skilled in the art that in continuous production, after each mold is solidified, the mold is released and transferred by the releasing mechanism 600, and the molding assembly 100 is not cooled, so that the molding assembly 100 does not need to be preheated again before the next mold is processed, that is, the step S01 needs to be performed only once before the first mold is processed.

The technical scheme provided by the embodiment of the utility model can be used for preparing the dies in batches and improving the production efficiency of the dies. In particular, when the preparation device further comprises an adjusting mechanism, the male mold is driven by the adjusting mechanism to move until the upper surface of the base plate of the male mold is in a horizontal plane before preparation, so that the obtained mold has a substrate with a uniform thickness, and is particularly suitable for preparing microneedle molds. In addition, the uniformity of the preparation parameters is controlled by the control mechanism, so that the consistency of the quality of the batch-prepared molds is improved.

Although the present invention is disclosed above, it is not limited thereto. Various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a preparation facilities of mould, its characterized in that includes the shaping subassembly, the shaping subassembly includes mould platform and positive mould, the upper surface of mould platform is equipped with a depressed area, positive mould is used for setting up on the bottom surface of depressed area, just the height of positive mould is less than the degree of depth of depressed area.

2. The apparatus for preparing a mold according to claim 1, wherein the male mold comprises a base plate, an upper surface of which is a plane; the preparation device further comprises an adjusting mechanism, wherein the adjusting mechanism is used for driving the male die to move and enabling the upper surface of the substrate to be in a horizontal plane.

3. The apparatus of claim 2, wherein the lower surface of the substrate and the bottom surface of the recessed region are both planar; the adjusting mechanism is used for driving the mould table to move and enabling the bottom surface of the concave area to be in one horizontal plane, and then enabling the male mould to move and enabling the upper surface of the substrate to be in the other horizontal plane.

4. The mold preparation apparatus of claim 3, wherein the adjustment mechanism comprises a motion stage configured to move under an external force; the motion table is arranged below the forming assembly and bears the forming assembly.

5. The apparatus for preparing a mold according to claim 3, wherein the recessed area is used for loading a liquid material, and an annular seal ring is provided on the lower surface of the substrate and/or the bottom surface of the recessed area, the annular seal ring being used for preventing the liquid material from flowing into a region between the lower surface of the substrate and the bottom surface of the recessed area.

6. The apparatus for preparing a mold according to claim 1, wherein the recessed area is used for loading a liquid raw material, the liquid raw material submerges the male mold and solidifies to form a mold; the preparation device further comprises a taking-off mechanism, and the taking-off mechanism is used for separating the forming assembly from the mold.

7. The apparatus for preparing a mold according to claim 6, wherein the removing mechanism comprises a mold releasing assembly and a mold removing assembly, the mold releasing assembly comprises a first telescopic rod and a first power device, the first telescopic rod is vertically arranged, the first telescopic rod passes through the mold table and is connected with the male mold, and the first power device is used for driving the first telescopic rod to extend and retract; the mold taking assembly comprises a second telescopic rod, a second power device and a bearing part, the second telescopic rod is horizontally arranged, the second power device is used for driving the second telescopic rod to stretch, and the bearing part is connected with the second telescopic rod and used for bearing the mold;

8. The apparatus of claim 7, wherein the molding assembly is further configured such that when the second power device drives the second telescoping rod to shorten, the second telescoping rod moves the mold away from the molding assembly.

9. The apparatus of claim 7, wherein the male mold is removably coupled to the first telescoping rod.

10. The mold preparation apparatus of claim 7, further comprising a box body and a vacuum generating element, wherein the box body is provided with a mold access window, and a door assembly is provided at the mold access window for closing the mold access window; the vacuum generating element is used for generating a vacuum environment in the box body;

11. The apparatus for preparing a mold according to claim 1 or 10, further comprising a heating member for heating the molding member.

12. The apparatus for preparing a mold according to claim 11, further comprising a raw material supply assembly for pouring liquid raw material into the depression.

13. The apparatus for preparing a mold according to claim 12, wherein the liquid feedstock comprises at least two components; the raw material supply assembly comprises a plurality of liquid storage tanks and a plurality of metering mechanisms, each liquid storage tank is used for storing one component of the liquid raw materials, and the metering mechanisms are arranged corresponding to the liquid storage tanks and are used for respectively metering the amount of each component of the liquid raw materials;

14. The apparatus for preparing a mold according to claim 13, further comprising a control assembly communicatively coupled to the raw material supply mechanism and configured to control at least one of an amount of each component of the liquid raw material, a mixing speed of each component, and a pouring speed of the liquid raw material; and/or, when the preparation device comprises a box body and a vacuum generating element, the control assembly is also connected with the vacuum generating element and is used for controlling the vacuum degree in the box body; and/or the control assembly is also in communication with the heating assembly and is used for controlling the temperature of the forming assembly within a predetermined range.

15. The apparatus of claim 1, wherein the male mold comprises a base plate and a needle disposed on an upper surface of the base plate.