A method and device for preparing a semi-net safety film

Abstract

The present invention discloses a method and device for preparing a semi-mesh safety film, and belongs to the technical field of capacitive film processing. The method and device for preparing a semi-mesh safety film, by setting a transmission component and a pressing mechanism, when the mechanical arm drives the extrusion plate to move downward, the toothed plate will drive the gear to rotate during the movement, so that the gear drives the second shaft to rotate through the first shaft and two transmission wheels during the rotation. Since the second shaft will drive the shift block to hit the shift piece during the rotation, the mold bottom plate moves outward, and when the shift block gradually separates from the mold bottom plate as it rotates, the spring will pull the slider and the mold bottom plate to reset, so that the mold bottom plate is in a high-frequency vibration state at this time, which can discharge the bubbles in the safety film material in the mold bottom plate on the one hand, and can distribute the safety film material in the mold bottom plate more evenly by vibration on the other hand, thereby ensuring the quality of the pressed safety film.

Description

Technical Field

[0001] The invention relates to the technical field of capacitor film processing, in particular to a method and a device for preparing a semi-net-shaped safety film. Background Art

[0002] Interactive electronic whiteboard is an advanced human-computer interaction device for education or conference assistance. It can be used with projectors, computers and other tools to achieve dust-free writing, free writing, remote communication and other functions. From the perspective of structure and appearance, there are many forms such as front projection, rear projection, and writing board; from the perspective of hardware principle, interactive electronic whiteboard integrates large-screen projection technology, precise positioning test technology, etc.

[0003] The prior art generally adopts silver paste printing or wire pressing to make the capacitor film of the capacitor whiteboard. The former is costly, complicated in manufacturing process, and has great environmental pollution, while the latter requires adding additional processes in the assembly process of the whiteboard or the manufacturing process of the capacitor film. The existing capacitor film usually needs to be processed by multiple hot pressing methods during the processing of the capacitor film. However, multiple hot pressing not only requires waiting for the capacitor film to cool down, but also is prone to deformation during the hot pressing process. At the same time, it is easy to cause uneven pressing and position displacement of the capacitor film, making it difficult to ensure the processing quality of the capacitor film. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above and / or existing problems in the processing of existing capacitor films, the present invention is proposed.

[0006] Therefore, the technical problem to be solved by the present invention is that the existing capacitor film usually needs to be processed by multiple hot pressing methods during the processing to process the multi-layer structure of the capacitor film. However, multiple hot pressing not only requires waiting for the capacitor film to cool down, but also is prone to deformation during the hot pressing process. At the same time, it is easy to cause uneven pressing and position displacement of the capacitor film, making it difficult to ensure the processing quality of the capacitor film.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: Provide a semi-net safety film preparation device, including a support mechanism, including a mounting assembly, a transmission assembly and a base assembly, wherein the transmission assembly is arranged in the mounting assembly, the base assembly is connected to the bottom of the mounting assembly, the transmission assembly is connected to the shifting block, and,

[0008] The pressing mechanism includes an extrusion assembly, a mechanical arm connected to the top of the extrusion assembly, a connecting frame and a tooth plate, wherein the top of the mechanical arm is fixedly connected to the mounting assembly, and the tooth plate is connected to the mechanical arm through the connecting frame; the tooth plate can be combined with the transmission assembly, and

[0009] The mold mechanism is arranged below the pressing mechanism and comprises a mold assembly, one side of which is fixedly connected with a paddle and a spring, the spring being connected to the base assembly, wherein the position of the paddle corresponds to the position of the paddle.

[0010] Furthermore, the mounting assembly includes a mounting bracket, in which a mounting groove is provided; the lower part of the mounting bracket is fixedly connected to the upper part of the base assembly, and the transmission assembly is clamped in the mounting groove.

[0011] Furthermore, the transmission assembly includes a first rotating shaft, a second rotating shaft, a transmission wheel, a transmission belt and a gear, wherein the first rotating shaft and the second rotating shaft are both provided with a transmission wheel, and the two transmission wheels are connected by a transmission belt, and the first rotating shaft is fixedly connected with a gear, and the gear is meshed with a toothed plate.

[0012] Furthermore, the mounting assembly also includes two fixing plates, which are arranged on both sides of the mounting bracket and fixedly connected to the base plate at the bottom, the two ends of the second rotating shaft extend out of the mounting groove and are respectively engaged with the two fixing plates, and the second rotating shaft is fixedly connected with a shift block, which is arranged between the mounting bracket and the fixing plate.

[0013] Furthermore, the extrusion assembly includes an extrusion plate, the top of which is fixedly connected to the bottom end of the robotic arm, a cavity is defined inside the extrusion plate and a plurality of first heat sinks are provided, and a plurality of through holes are defined outside the plurality of first heat sinks.

[0014] Furthermore, a plurality of first conduits are fixedly connected to the outside of the extrusion plate, and the first conduits are all connected to the extrusion plate, and a plurality of exhaust holes are opened on the top of the extrusion plate;

[0015] Furthermore, the mold assembly includes a mold bottom plate, a ventilation groove is opened in the mold bottom plate, and a plurality of second heat sinks are fixedly connected in the ventilation groove.

[0016] Furthermore, a plurality of second conduits are fixedly connected to the outside of the mold bottom plate, and the mold bottom plate is communicated with the plurality of second conduits, wherein positions of the plurality of second conduits correspond to positions of the plurality of first conduits.

[0017] Furthermore, it also includes a fan fixedly connected above the base assembly, and the exhaust ports on both sides of the fan are provided with transmission pipes, the transmission pipes are connected to the mold bottom plate, and the transmission pipes are telescopic pipes.

[0018] A method for preparing a semi-net safety film is also provided, using the aforementioned semi-net safety film preparation device, comprising the following steps:

[0019] Glue spraying: Lay the first layer of non-woven fabric on the winding machine and spray glue;

[0020] Mesh structure processing: winding the capacitor film with mesh structure;

[0021] One-time pressing: The capacitor film is subjected to heat pressing treatment to achieve one-time pressing;

[0022] Membrane treatment: Use a second layer of non-woven fabric to cover the formed mesh-structured capacitor membrane to form a structure of two layers of non-woven fabric plus a layer of mesh capacitor membrane;

[0023] Secondary pressing: The capacitor film structure is subjected to secondary hot pressing through a preparation device and then cooled to complete the processing.

[0024] Compared with the prior art, the beneficial effect of the present invention lies in that: the semi-mesh safety film preparation method and preparation device, by setting a transmission component and a pressing mechanism, when the mechanical arm drives the extrusion plate to move downward, the mechanical arm will synchronously drive the tooth plate to move downward through the connecting plate, and at this time, the tooth plate will drive the gear to rotate during the movement, so that the gear drives the second rotating shaft to rotate through the first rotating shaft and the two transmission wheels during the rotation, because the second rotating shaft will drive the shift block to hit the shift piece during the rotation, so that the mold bottom plate moves outward, and when the shift block gradually separates from the mold bottom plate with the rotation, the spring will pull the slider and the mold bottom plate to reset, so that the mold bottom plate is in a high-frequency vibration state at this time, which can discharge the bubbles in the safety film material in the mold bottom plate on the one hand, and distribute the safety film material in the mold bottom plate more evenly by vibration on the other hand, thereby ensuring the quality of the pressed safety film. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0026] Figure 1 A three-dimensional structural schematic diagram of a semi-net safety film preparation method and preparation device described in an embodiment of the present invention.

[0027] Figure 2 A three-dimensional structural schematic diagram of a support mechanism in a method and device for preparing a semi-net safety film according to an embodiment of the present invention.

[0028] Figure 3A three-dimensional structural schematic diagram of a mold mechanism in a method and device for preparing a semi-net safety film according to an embodiment of the present invention.

[0029] Figure 4 A schematic diagram of the three-dimensional cross-sectional structure of a pressing mechanism in a method for preparing a semi-net safety film and a preparation device described in an embodiment of the present invention.

[0030] Figure 5 A method and device for preparing a semi-net safety film according to an embodiment of the present invention Figure 4 Schematic diagram of the structure enlarged at point A in the middle.

[0031] Figure 6 A three-dimensional structural schematic diagram of a bottom plate assembly in a method and device for preparing a semi-net safety film according to an embodiment of the present invention.

[0032] Figure 7 A three-dimensional structural schematic diagram of a transmission component in a method for preparing a semi-net safety film and a preparation device according to an embodiment of the present invention.

[0033] Figure 8 A schematic diagram of the three-dimensional cross-sectional structure of a mold mechanism in a method and device for preparing a semi-net safety film according to an embodiment of the present invention.

[0034] Fig. 9 A schematic diagram of the process flow of a semi-net safety film preparation method and a preparation device according to an embodiment of the present invention.

[0035] Description of reference numerals:

[0036] 100-bracket mechanism; 101-mounting assembly; 101a-mounting bracket; 101b-mounting slot; 102-transmission assembly; 102a-first rotating shaft; 102b-first bearing; 102c-transmission wheel; 102d-transmission belt; 102e-gear; 102f-second rotating shaft; 102g-shift block; 102h-second bearing; 102i-third bearing; 102j-fixing plate; 103-base assembly; 103a-bottom plate; 103b-mounting hole; 104-blower; 105-transmission pipe;

[0037] 200-pressing mechanism; 201-extrusion assembly; 201a-extrusion plate; 201b-first heat sink; 201c-through hole; 202-mechanical arm; 203-connecting frame; 204-tooth plate; 205-first conduit; 206-exhaust hole; 300-mold mechanism; 301-mold assembly; 301a-mold bottom plate; 301b-venting groove; 301c-second heat sink; 302-second conduit; 303-paddle; 304-slider; 305-spring. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0041] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0042] Example 1

[0043] like Figure 1-3 and Figure 6 As shown, the present invention provides a technical solution: a method for preparing a semi-net safety film, comprising:

[0044] Glue spraying: Lay the first layer of non-woven fabric on the winding machine and spray glue;

[0045] Mesh structure processing: winding the capacitor film with mesh structure;

[0046] One-time pressing: The capacitor film is subjected to heat pressing treatment to achieve one-time pressing;

[0047] Membrane treatment: Use a second layer of non-woven fabric to cover the formed mesh-structured capacitor membrane to form a structure of two layers of non-woven fabric plus a layer of mesh capacitor membrane;

[0048] Secondary pressing: The capacitor film structure is subjected to secondary hot pressing through a preparation device and then cooled to complete the processing;

[0049] When the safety film is processed in the above manner, it also specifically involves a semi-net safety film preparation device, including a support mechanism 100, a pressing mechanism 200 and a mold mechanism 300.

[0050] Further: A semi-net safety film preparation device, comprising:

[0051] The support mechanism 100 includes a mounting assembly 101, a transmission assembly 102 disposed in the mounting assembly 101, a base assembly 103 and a fan 104, wherein the base assembly 103 is connected to the bottom of the mounting assembly 101, and the fan 104 is disposed above the base assembly 103; and,

[0052] The pressing mechanism 200 comprises an extrusion assembly 201, a mechanical arm 202 connected to the extrusion assembly 201, a connecting frame 203 and a tooth plate 204, wherein the tooth plate 204 is connected to the extrusion assembly 201 via the connecting frame 203; and

[0053] The mold mechanism 300 is generally arranged below the pressing mechanism 200, and includes a mold assembly 301, two extrusion plates 201a arranged on one side of the mold assembly 301, a slider 304 and a second conduit 302, and the number of the slider 304 and the second conduit 302 are both several.

[0054] Further, the semi-mesh safety film preparation device according to Example 1 includes a support mechanism 100, including a mounting component 101, a transmission component 102 and a base component 103, wherein the transmission component 102 is arranged in the mounting component 101, the base component 103 is connected to the bottom of the mounting component 101, a shift block 102g is arranged on the base component 103, and the transmission component 102 is connected to the shift block 102g.

[0055] The pressing mechanism 200 includes an extrusion assembly 201 , a mechanical arm 202 connected to the extrusion assembly 201 , a connecting frame 203 and a tooth plate 204 , wherein the tooth plate 204 is connected to the extrusion assembly 201 via the connecting frame 203 ; the tooth plate 204 can be combined with the transmission assembly 102 .

[0056] The mold mechanism 300 includes a mold assembly 301 , one side of which is fixedly connected with a paddle 303 and a spring 305 , the spring 305 being connected to the base assembly 103 , wherein the position of the paddle block 102 g corresponds to the position of the paddle 303 .

[0057] In this embodiment, by setting up the transmission assembly 102 and the pressing mechanism 200, when the mechanical arm 202 drives the extrusion plate 201a to move downward, the mechanical arm 202 will synchronously drive the tooth plate 204 to move downward through the connecting plate. At this time, the tooth plate 204 will drive the gear 102e to rotate during the movement, so that the gear 102e drives the second rotating shaft 102f to rotate through the first rotating shaft 102a and the two transmission wheels 102c during the rotation. Since the second rotating shaft 102f will drive the shift block 102g to hit the shift piece 303 during the rotation, the mold bottom plate 301a is in a high-frequency vibration state at this time. On the one hand, the bubbles in the safety film material in the mold bottom plate 301a can be discharged, and on the other hand, the safety film material in the mold bottom plate 301a can be distributed more evenly through vibration, thereby ensuring the quality of the pressed safety film.

[0058] Example 2

[0059] Combined with Figure 2 and attached Figure 4 , it is concluded that: the transmission assembly 102 is clamped in the installation assembly 101, the lower part of the installation assembly 101 is fixedly connected to the upper part of the base assembly 103, the upper part of the base assembly 103 is fixedly connected to the fan 104, the exhaust ports on both sides of the fan 104 are provided with transmission pipes 105, the transmission pipes 105 are telescopic pipes, and the installation assembly 101 includes a mounting bracket 101a;

[0060] Because a transmission tube 105 is provided, and the transmission tube 105 is a telescopic tube, when the paddle block 102g pushes the paddle 303, the transmission tube 105 can ensure the connection effect between the fan 104 and the mold bottom plate 301a. A mounting groove 101b is provided in the mounting bracket 101a, and the bottom of the mounting bracket 101a is fixedly connected to the top of the base assembly 103. The transmission assembly 102 is clamped in the mounting groove 101b. The base assembly 103 includes a bottom plate 103a, and a plurality of mounting holes 103b are provided on one side of the bottom plate 103a. The top of the bottom plate 103a is fixedly connected to the bottom end of the mounting bracket 101a, and the top of the bottom plate 103a is fixedly connected to the fan 104.

[0061] Because the tooth plate 204, the gear 102e and the robot arm 202 are provided, the preparation device can press the safety film only by starting the robot arm 202. At the same time, the mold bottom plate 301a can be vibrated synchronously to achieve the effect of complementary and automated realization of the two, which not only reduces the difficulty of using the preparation device, but also ensures the quality of the processed safety film.

[0062] The transmission assembly 102 includes a first rotating shaft 102a, both ends of the first rotating shaft 102a are sleeved with first bearings 102b, the first rotating shaft 102a is fixedly connected to a transmission wheel 102c located above, the number of transmission wheels 102c is two, and the two transmission wheels 102c are connected through a transmission belt 102d, the first rotating shaft 102a is fixedly connected with a gear 102e outside, and the transmission wheel 102c located below is fixedly connected with a second rotating shaft 102f inside, and the two sides of the inner wall of the mounting groove 101b are respectively connected with the two first bearings. 102b are mutually clamped, both ends of the second rotating shaft 102f are sleeved with third bearings 102i, the outer sleeve of the second rotating shaft 102f is connected with a second bearing 102h, and the two third bearings 102i on both sides are respectively clamped with the opposite surfaces of the two fixed plates 102j, the second rotating shaft 102f is fixedly connected to two shift blocks 102g, the shift block 102g is composed of four cams, the second bearing 102h is clamped in the mounting bracket 101a, and the lower parts of the two fixed plates 102j are fixedly connected to the upper part of the base plate 103a.

[0063] In this embodiment: after the pressing is completed, it is necessary to start the fan 104, so that during the operation of the fan 104, the gas will be discharged into the ventilation groove 301b opened in the mold bottom plate 301a through the transmission pipes 105 on both sides. During the rapid circulation of gas, the second heat sink 301c will quickly lose heat and extract the heat of the mold bottom plate 301a, so that the mold bottom plate 301a and the second heat sink 301c will be quickly cooled down, thereby reducing the time waiting for the safety film to cool naturally, and improving the processing efficiency of the preparation device for the safety film.

[0064] Example 3

[0065] Combined with Figure 5 and attached Figure 6 , it is concluded that: the top of the extrusion assembly 201 is fixedly connected to the bottom of the mechanical arm 202, the mechanical arm 202 is fixedly connected to the connecting frame 203, the mechanical arm 202 is transmission-connected to the tooth plate 204 through the connecting frame 203, the extrusion assembly 201 is fixedly connected to a plurality of first conduits 205, the top of the extrusion assembly 201 is provided with a plurality of exhaust holes 206, the top of the mechanical arm 202 is fixedly connected to the mounting bracket 101a, the tooth plate 204 is meshed with the gear 102e, and the extrusion assembly 201 It includes an extrusion plate 201a, a cavity is opened in the extrusion plate 201a, a plurality of first heat sinks 201b are fixedly connected in the extrusion plate 201a, and a plurality of through holes 201c are opened outside the plurality of first heat sinks 201b, the top of the extrusion plate 201a is fixedly connected to the bottom end of the robot arm 202, a plurality of first conduits 205 are fixedly connected to the top of the extrusion plate 201a and communicated with the extrusion plate 201a, and a plurality of exhaust holes 206 are opened above the extrusion plate 201a.

[0066] A plurality of second conduits 302 are fixedly connected to the outside of the mold assembly 301, two paddles 303 are fixedly connected to one side of the mold assembly 301, a plurality of sliders 304 are fixedly connected to one side of the mold assembly 301, and the other ends of the plurality of sliders 304 are fixedly connected to springs 305, the positions of the plurality of second conduits 302 correspond to the positions of the plurality of first conduits 205, the other ends of the springs 305 are fixedly connected to the base assembly 103, the transmission tube 105 is connected to the mold assembly 301, the mold assembly 301 includes a mold base plate 301a, a ventilation groove 301b is provided in the mold base plate 301a, a plurality of second heat sinks 301c are fixedly connected in the ventilation groove 301b, the mold base plate 301a is connected to the plurality of second conduits 302, the transmission tube 105 is connected to the mold base plate 301a, and the plurality of sliders 304 and the two paddles 303 are fixedly connected to the same side of the mold base plate 301a.

[0067] In the present embodiment: due to the provision of the first heat sink 201b and the second heat sink 301c, the preparation device can not only accelerate the heat dissipation efficiency of the safety film, the mold base plate 301a and the extrusion plate 201a by air cooling, but also the first heat sink 201b and the second heat sink 301c can improve the strength of the mold base plate 301a and the extrusion plate 201a themselves, avoiding deformation of the mold base plate 301a and the heat sink during a long period of time, thereby ensuring the service life of the preparation device.

[0068] The working principle of the present invention is as follows: when the safety film is processed by the preparation device, the safety film to be pressed needs to be placed in the mold bottom plate 301a, and the extrusion plate 201a is pressed down by starting the mechanical arm 202, so that the extrusion plate 201a squeezes the safety film placed in the mold bottom plate 301a, thereby pressing and bonding the multi-section mold structure of the safety film, and during the pressing process, an external heating device needs to be used to achieve synchronous heating of the mold bottom plate 301a and the extrusion plate 201a to achieve hot pressing treatment;

[0069] When the robot arm 202 drives the extrusion plate 201a to move downward, the robot arm 202 will synchronously drive the tooth plate 204 to move downward through the connecting plate. At this time, the tooth plate 204 will drive the gear 102e to rotate during the movement, so that the gear 102e drives the second shaft 102f to rotate through the first shaft 102a and the two transmission wheels 102c during the rotation. Since the second shaft 102f drives the shift block 102g to hit the shift piece 303 during the rotation, the mold bottom plate 301a is in a high-frequency vibration state at this time; when the robot arm drives the extrusion plate to move downward, the tooth plate will drive The gear rotates, causing the gear to drive the second shaft to rotate through the first shaft and two transmission wheels during the rotation process. Since the second shaft will drive the shift block to hit the shift piece during the rotation process, the mold base plate will move outward, and when the shift block gradually separates from the mold base plate as it rotates, the spring will pull the slider 304 and the mold base plate to reset, so that the mold base plate is in a high-frequency vibration state at this time. On the one hand, the bubbles in the safety film material in the mold base plate can be discharged, and on the other hand, the safety film material in the mold base plate can be distributed more evenly through vibration, thereby ensuring the quality of the pressed safety film.

[0070] After pressing is completed, it is necessary to start the fan 104 so that during operation the fan 104 will discharge gas into the ventilation groove 301b opened in the mold bottom plate 301a through the transmission pipes 105 on both sides. During the rapid circulation of gas, the second heat sink 301c will quickly lose heat and extract heat from the mold bottom plate 301a.

[0071] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0072] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0073] It should be understood that in the development process of any actual implementation, such as in any engineering or design project, a large number of specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill who benefit from this disclosure, without excessive experimentation, the development efforts will be a routine work of design, manufacture and production. It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limited. Although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those of ordinary skill in the art that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. A semi-net safety film preparation device, characterized in that: include, A support mechanism (100) comprises a mounting assembly (101), a transmission assembly (102) and a base assembly (103), wherein the transmission assembly (102) is arranged in the mounting assembly (101), the base assembly (103) is connected to the bottom of the mounting assembly (101), the transmission assembly (102) is connected to a shifting block (102g), and, A pressing mechanism (200) comprises an extrusion assembly (201), a mechanical arm (202) connected to the top of the extrusion assembly (201), a connecting frame (203) and a tooth plate (204), wherein the top of the mechanical arm (202) is fixedly connected to the mounting assembly (101), and the tooth plate (204) is connected to the mechanical arm (202) via the connecting frame (203); the tooth plate (204) can be combined with the transmission assembly (102); wherein the extrusion assembly (201) comprises an extrusion plate (201a), the top of the extrusion plate (201a) is fixedly connected to the bottom of the mechanical arm (202), a cavity is provided inside the extrusion plate (201a) and a plurality of first heat sinks (201b) are provided, and a plurality of through holes (201c) are provided outside the plurality of first heat sinks (201b); the first heat sinks (201b) can improve the strength of the extrusion plate (201a); and The mold mechanism (300) is arranged below the pressing mechanism (200), and comprises a mold assembly (301), one side of the mold assembly (301) is fixedly connected to a paddle (303) and a spring (305), the spring (305) is connected to the base assembly (103), wherein the position of the paddle block (102g) corresponds to the position of the paddle (303).

2. The semi-net safety film preparation device according to claim 1, characterized in that: The mounting assembly (101) comprises a mounting bracket (101a), and a mounting groove (101b) is provided in the mounting bracket (101a); the lower part of the mounting bracket (101a) is fixedly connected to the upper part of the base assembly (103), and the transmission assembly (102) is clamped in the mounting groove (101b).

3. The semi-net safety film preparation device according to claim 2, characterized in that: The transmission assembly (102) comprises a first rotating shaft (102a), a second rotating shaft (102f), a transmission wheel (102c), a transmission belt (102d) and a gear (102e), wherein the first rotating shaft (102a) and the second rotating shaft (102f) are both provided with a transmission wheel (102c), and the two transmission wheels (102c) are connected in transmission via a transmission belt (102d), and the first rotating shaft (102a) is fixedly connected with a gear (102e), and the gear (102e) is meshed with a toothed plate (204).

4. The semi-net safety film preparation device according to claim 3, characterized in that: The mounting assembly (101) further comprises two fixing plates (102j), the two fixing plates (102j) being arranged on both sides of the mounting bracket (101a) and being fixedly connected to the bottom plate (103a) at their bottoms; the two ends of the second rotating shaft (102f) extending out of the mounting groove (101b) and respectively being mutually engaged with the two fixing plates (102j); the second rotating shaft (102f) being fixedly connected to a shifting block (102g), the shifting block (102g) being arranged between the mounting bracket (101a) and the fixing plate (102j).

5. The semi-net safety film preparation device according to claim 1, characterized in that: A plurality of first conduits (205) are fixedly connected to the outside of the extrusion plate (201a), and the first conduits (205) are all in communication with the extrusion plate (201a). A plurality of exhaust holes (206) are provided above the extrusion plate (201a).

6. The semi-net safety film preparation device according to claim 5, characterized in that: The mould assembly (301) comprises a mould bottom plate (301a), a ventilation groove (301b) is provided in the mould bottom plate (301a), and a plurality of second heat sinks (301c) are fixedly connected in the ventilation groove (301b).

7. The semi-net safety film preparation device according to claim 6, characterized in that: A plurality of second conduits (302) are fixedly connected to the outside of the mold bottom plate (301a), and the mold bottom plate (301a) is in communication with the plurality of second conduits (302), wherein the positions of the plurality of second conduits (302) correspond to the positions of the plurality of first conduits (205).

8. The semi-net safety film preparation device according to claim 7, characterized in that: It also includes a fan (104) fixedly connected above the base assembly (103), exhaust ports on both sides of the fan (104) are provided with transmission pipes (105), the transmission pipes (105) are connected to the mold bottom plate (301a), and the transmission pipes (105) are telescopic pipes.

9. A method for preparing a semi-net safety film, using the semi-net safety film preparation device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Glue spraying: Lay the first layer of non-woven fabric on the winding machine and spray glue; Mesh structure processing: winding the capacitor film with mesh structure; One-time pressing: The capacitor film is subjected to heat pressing treatment to achieve one-time pressing; Membrane treatment: Use a second layer of non-woven fabric to cover the formed mesh-structured capacitor membrane to form a structure of two layers of non-woven fabric plus a layer of mesh capacitor membrane; Secondary pressing: The capacitor film structure is subjected to secondary hot pressing through a preparation device and then cooled to complete the processing.

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