PC film press device and its process flow

Abstract

The present application relates to PC membrane processing technology field, especially to a kind of PC membrane pressing device and its process flow, base is equipped in the bottom of rack, membrane plate is equipped on base, membrane plate is equipped with membrane piece through slot, heating through slot is equipped below membrane plate in base, top membrane driving part is equipped below base, heating plate is equipped in the movable end of top membrane driving part, top membrane seat is equipped on the side end face of heating plate close to membrane plate, the size of top membrane seat is matched with the size of the membrane piece through slot, heating plate is connected with heat source, the temperature of heating plate is first raised to working temperature by heat source, after being heated, top membrane seat can soften membrane piece after contacting, after being softened, membrane piece is not caused rigid injury to itself when being stretched, by being set smaller than the size of membrane plate, the size of heating through slot can make base support membrane plate, and the support stability of base to membrane plate is not influenced by the existence of heating through slot.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of PC film processing, in particular to a PC film pressing device and a process flow thereof. BACKGROUND

[0002] PC film is a short name of polycarbonate film, which is a kind of amorphous, odorless, non-toxic, highly transparent thermoplastic engineering plastic. Due to the characteristics of PC material itself, most of the existing PC film processing is still mainly cutting. However, under the requirements of the special use environment of some notebook computers or other precision electronic products, PC film has to be stretched to meet the actual use requirements. Since the traditional stretching machine is used for mechanical stretching, the film is easily damaged, resulting in a low yield. Even if the PC film is formed after mechanical stretching, the service life of the film itself is greatly reduced during subsequent use due to the hard damage to the film during the stretching process, which is not conducive to the long-term use of the equipment. Moreover, the PC material film has a high temperature requirement. If the temperature is too high or too low during the heating and softening process, the film itself will be damaged or the processing effect will be poor. Considering the characteristics of PC material itself, there are many factors to be considered during the stretching process. How to ensure the production efficiency while ensuring the yield of PC film processing has become a problem to be solved. SUMMARY

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a PC film pressing device and a process flow thereof, which solves the problem of PC film stretching in the prior art.

[0004] To achieve the above object and other related objects, the present application provides a PC membrane pressing device, which comprises a rack, a membrane pressing mechanism and a membrane lifting mechanism, the membrane pressing mechanism and the membrane lifting mechanism are oppositely arranged at both ends of the rack, the membrane lifting mechanism comprises a membrane plate, a membrane lifting driving element and a heating plate, the bottom of the rack is provided with a base, the membrane plate is arranged on the base, the membrane plate is provided with a membrane slot, the base is provided with a heating slot below the membrane plate, the size of the heating slot is smaller than the size of the membrane plate, the base is provided with the membrane lifting driving element below, the heating plate is arranged on the movable end of the membrane lifting driving element, the membrane lifting driving element drives the heating plate to move towards the membrane plate, the membrane lifting seat is arranged on the side end face of the heating plate close to the membrane plate, the size of the membrane lifting seat is matched with the size of the membrane slot, and the heating plate is connected with a heat source.

[0005] In an embodiment of the present application, the membrane pressing mechanism comprises a membrane pressing driving element and a membrane pressing plate, the membrane pressing driving element is arranged on the rack, the membrane pressing plate is arranged on the movable end of the membrane pressing driving element, the membrane pressing plate is slidingly connected to the rack, the end face of the membrane pressing plate close to the membrane plate is provided with a membrane groove, the size of the membrane groove is matched with the size of the membrane slot, the membrane pressing plate is driven by the membrane pressing driving element to move downward, the membrane lifting seat is driven by the membrane lifting driving element to move upward, and the membrane is stretched, in the stretching process, the membrane pressing plate can press the membrane to avoid displacement of the membrane in the stretching process, thereby affecting the subsequent processing precision.

[0006] In an embodiment of the present application, the rack is provided with a vertical slide rail, a sliding block is slidingly connected to the vertical slide rail, the membrane pressing plate is provided with a mounting block, and the mounting block is mounted on the sliding block through a fixing element. The mounting block is connected to the sliding block on the vertical slide rail, and the membrane pressing plate is mounted on the mounting block through the corresponding fixing element, so that the membrane pressing plate can be conveniently disassembled.

[0007] In an embodiment of the present application, a base is further arranged between the movable end of the membrane lifting driving element and the heating plate, and the size of the base is greater than that of the heating slot.

[0008] In an embodiment of the present application, two groups of guide rod fixing seats are symmetrically arranged on both sides of the base, a guide rod is slidingly connected to the guide rod fixing seat, the guide rod penetrates through the base, the base and the membrane plate, and the guide rod extends out of the membrane lifting seat and the membrane plate at both ends.

[0009] In an embodiment of the present application, the diaphragm lifting driving element is symmetrically arranged on both sides of the film plate on the base, the fixed end of the diaphragm lifting driving element is arranged on the base, and the movable end of the diaphragm lifting driving element is connected with the diaphragm.

[0010] In an embodiment of the present application, the film plate is further provided with a diaphragm positioning column.

[0011] A process flow of the PC diaphragm pressing device comprises the following steps,

[0012] a. placing the diaphragm to be processed on the film plate and positioning the diaphragm through the diaphragm positioning column;

[0013] b. heating the top film seat through the heating plate to increase the temperature of the top film seat to 170-205℃;

[0014] c. moving the film pressing plate downward to press the diaphragm on the film plate;

[0015] d. driving the top film seat to move upward through the top film driving element, and performing diaphragm pressing treatment on the diaphragm below the film pressing plate through the heated top film seat, the diaphragm pressing time is 25-30s, and the diaphragm pressing pressure is controlled to be 5-7kg;

[0016] e. performing cooling treatment on the top film seat after diaphragm pressing treatment.

[0017] Due to the characteristics of PC material itself, the temperature needs to be controlled at 170-205℃, too high temperature will damage the PC diaphragm itself, too low temperature cannot meet the softening requirement of the PC diaphragm, which will damage the PC diaphragm after stretching, affect the subsequent use, reduce the yield, and in the stretching process, in order to avoid the PC diaphragm after stretching due to its own softening, which will cause the PC diaphragm to restore the original shape, resulting in unqualified stretching products, therefore, the diaphragm pressing time needs to be controlled at 25-30s, and the diaphragm pressing pressure is controlled at 5-7kg, which can ensure the production efficiency and the qualified rate of the products after stretching processing.

[0018] As described above, the PC diaphragm pressing device and the process flow thereof have the following beneficial effects:

[0019] 1. The temperature of the heating plate is first increased to the working temperature through the heat source, the diaphragm can be softened after the heated top film seat contacts the diaphragm, and the diaphragm after softening will not cause hard damage to the diaphragm itself during stretching treatment.

[0020] 2. By setting the heating through slot size to be smaller than the film plate size, the base can support the film plate, and the support stability of the base to the film plate will not be affected by the existence of the heating through slot.

[0021] 3、Through the compression film driving piece drives the compression film plate to move downward, cooperation top film driving piece drives the top film seat to move upward, the membrane piece is carried out the stretching treatment, in the stretching process, the compression film plate can play the compression effect to the membrane piece, avoid the membrane piece to produce displacement in the stretching process, further influence the subsequent processing precision.

[0022] 4、Through setting the mounting block is connected to the sliding block on the vertical slide rail, then cooperation corresponding fixing piece installs the compression film plate on the mounting block, can conveniently dismount the compression film plate. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structure schematic diagram of the PC membrane piece compression film device and the process flow disclosed in the embodiment of the application is shown.

[0024] Figure 2 The membrane plate structure schematic diagram of the PC membrane piece compression film device and the process flow disclosed in the embodiment of the application is shown.

[0025] Figure 3 The heating channel structure schematic diagram of the PC membrane piece compression film device and the process flow disclosed in the embodiment of the application is shown.

[0026] Figure 4 The sliding block structure schematic diagram of the PC membrane piece compression film device and the process flow disclosed in the embodiment of the application is shown.

[0027] Element number explanation

[0028] 1, rack; 2, membrane plate; 3, top film driving piece; 4, heating plate; 5, base; 6, membrane piece channel; 7, heating channel; 8, membrane piece positioning column; 9, top film seat; 10, compression film driving piece; 11, membrane channel; 12, vertical slide rail; 13, sliding block; 14, mounting block; 15, base; 16, guide rod fixed seat; 17, guide rod; 18, membrane piece lifting driving piece; 19, compression film plate. DETAILED DESCRIPTION

[0029] The following by specific embodiment explains the embodiment of the application, the person skilled in the art can easily understand the other advantages and effects of the application from the content disclosed in the specification.

[0030] Please refer to Figures 1 to 4It is to be understood that the structures, proportions, sizes, etc. shown in the drawings accompanying the present specification are merely intended to facilitate the understanding of the content disclosed in the present specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which the present application can be implemented, and therefore do not have technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that can be achieved by the present application and the purposes that can be achieved, should still fall within the scope of the technology disclosed by the present application.

[0031] Referring to Figures 1 to 4 The present application provides a PC film pressing device and its process flow. The specific embodiment of the present application is that a pressing mechanism and a film pressing mechanism are arranged opposite to each other on both sides of a rack 1, a base 5 is arranged at the bottom of the rack 1, the film pressing mechanism includes a film plate 2, a film pressing driving member 3 and a heating plate 4, the film plate 2 is arranged on the base 5, a film piece through slot 6 is arranged on the film plate 2, the film piece through slot 6 can be opened in different shapes and sizes according to the actual production process, a heating through slot 7 is arranged below the film plate 2 in the base 5, the size of the heating through slot 7 is smaller than that of the film plate 2, the size of the heating through slot 7 is smaller than that of the film plate 2, so that the base 5 can support the film plate 2, and the support stability of the base 5 to the film plate 2 will not be affected by the existence of the heating through slot 7, the film pressing driving member 3 is arranged below the base 5, the heating plate 4 is arranged at the movable end of the film pressing driving member 3, the film pressing driving member 3 drives the heating plate 4 to move towards the film plate 2 to process the film piece on the film plate 2, a film pressing seat 9 is arranged on the side end face of the heating plate 4 close to the film plate 2, the size of the film pressing seat 9 matches the size of the film piece through slot 6, the heating plate 4 is connected with a heat source, after the heating plate 4 is connected with the heat source, the temperature of the heating plate 4 is first raised to the working temperature by the heat source, and then the heating of the film pressing seat 9 on the heating plate 4 is realized, under the driving of the film pressing driving member 3, the heated film pressing seat 9 can be raised to a certain height to stretch the film piece on the film seat, the film piece can be softened after the heated film pressing seat 9 contacts the film piece, and the softened film piece will not cause hard damage to the film piece itself during the stretching process;

[0032] The film pressing mechanism comprises a film pressing driving part 10 and a film pressing plate 2. The film pressing driving part 10 is arranged on the rack 1, and the film pressing plate 2 is arranged on the movable end of the film pressing driving part 10. The film pressing plate 2 is driven by the film pressing driving part 10 to move downward, and cooperates with the film top driving part 3 to drive the film top base 9 to move upward, so as to stretch the diaphragm. In the stretching process, the film pressing plate 2 can press the diaphragm to avoid displacement of the diaphragm in the stretching process, thereby affecting the subsequent processing precision. The film pressing plate 2 is slidingly connected to the rack 1. A film groove 11 is arranged on the end face of the film pressing plate 2 close to one side of the film plate 2. The size of the film groove 11 is matched with the size of the diaphragm through groove 6. The film groove 11 arranged on the film pressing plate 2 is matched with the size of the diaphragm through groove 6, so that the diaphragm to be stretched can be stretched to the required shape. The rack 1 is provided with a vertical sliding rail 12. The vertical sliding rail 12 is slidingly connected with a sliding block 13. The film pressing plate 2 is provided with a mounting block 14. The mounting block 14 is mounted on the sliding block 13 through a fixing part. The mounting block 14 is connected to the sliding block 13 on the vertical sliding rail 12. The film pressing plate 2 is mounted on the mounting block 14 through the corresponding fixing part. The film pressing plate 2 can be conveniently disassembled. The film top driving part 3 is movably connected with the heating plate 4. The base 15 is arranged between the film top driving part 3 and the heating plate 4. The size of the base 15 is greater than the size of the heating through groove 7. When the base 15 is driven upward by the film top driving part 3, the base 15 will be limited due to the difference between the size of the base 15 and the size of the heating through groove 7 on the base 5, so that the base 15 will not be over-travelled during the upward movement of the base 15 driven by the film top driving part 3.

[0033] The heat insulation plate is arranged between the base 15 and the heating plate 4. When the heating plate 4 heats the film top base 9, in order to avoid the heat of the heating plate 4 being transferred to the base 15, causing damage to the film top driving part 3, the heat of the heating plate 4 can be dispersed by arranging the heat insulation plate between the base 15 and the heating plate 4, thereby avoiding damage to the film top driving part 3 caused by the heat of the heating plate 4. Two groups of guide rod fixing seats 16 are symmetrically arranged on both sides of the heating plate 4 on the base 15. The guide rod fixing seat 16 is slidingly connected with a guide rod 17. The guide rod 17 penetrates through the base 15, the base 5 and the film plate 2. The guide rod 17 extends out of the film top base 9 and the film plate 2 at both ends. The guide rod 17 can keep the movement stability between the base 15, the base 5 and the film plate 2 during the upward and downward movement of the base 15 driven by the film top driving part 3, so as to avoid position deviation during the upward and downward movement of the base 15 driven by the film top driving part 3, thereby affecting the processing precision.

[0034] The diaphragm lifting driving element 18 is fixed on the base 5, and the movable end of the diaphragm lifting driving element 18 is connected with the diaphragm. The diaphragm lifting driving element 18 can adjust the height of the diaphragm. According to the actual production needs, the diaphragm is stretched to different depths by cooperating with the film pressing mechanism and the film lifting mechanism. The diaphragm positioning column 8 is arranged on the diaphragm 2, and the diaphragm positioning column 8 can position the diaphragm before stretching processing, so as to reduce the displacement of the diaphragm before stretching processing.

[0035] The process flow of the PC diaphragm pressing device is as follows:

[0036] a. The diaphragm to be processed is placed on the diaphragm plate, and the diaphragm is positioned by the diaphragm positioning column;

[0037] b. The film pressing plate is heated by the heating plate, and the temperature of the film pressing plate is increased to 170-205℃;

[0038] c. The film pressing plate moves downward to press the diaphragm on the diaphragm plate;

[0039] d. The film pressing driving element drives the film pressing plate to move upward, and the heated film pressing plate is used to press the diaphragm below the film pressing plate. The pressing time is 25-30s, and the pressing pressure is controlled at 5-7kg;

[0040] e. The film pressing driving element drives the film pressing plate to move upward, and the heated film pressing plate is used to press the diaphragm below the film pressing plate. The pressing time is 25-30s, and the pressing pressure is controlled at 5-7kg;

[0041] Due to the characteristics of PC material itself, the temperature needs to be controlled at 170-205℃ during the stretching process of the diaphragm with a thickness of 0.1±0.02mm. If the temperature is too high, the PC diaphragm will be damaged. If the temperature is too low, the softening requirement of the PC diaphragm cannot be met, which will damage the PC diaphragm after stretching, affect the subsequent use, reduce the yield, and avoid the PC diaphragm after stretching due to its own softening, which will cause the PC diaphragm to return to its original shape after stretching, resulting in unqualified stretching products. Therefore, the pressing time needs to be controlled at 25-30s, and the pressing pressure needs to be controlled at 5-7kg, which can ensure the production efficiency and the qualified rate of the products after stretching processing.

[0042] In summary, the application first raises the temperature of the heating plate to the working temperature by the heat source, and the top film seat after heating can soften the diaphragm after contacting the diaphragm. The diaphragm after softening will not cause hard damage to the diaphragm itself during the stretching process. By setting the heating through groove size smaller than the film plate size, the base can support the film plate, and the existence of the heating through groove will not affect the support stability of the base to the film plate. The film pressing plate is driven downward by the film pressing driving piece, and the top film seat is driven upward by the top film driving piece, so as to stretch the diaphragm. In the stretching process, the film pressing plate can press the diaphragm, so as to avoid displacement of the diaphragm during the stretching process, thereby affecting the subsequent processing precision. By setting the mounting block connected to the slider on the vertical slide rail, and then installing the film pressing plate on the mounting block by the corresponding fixing piece, the film pressing plate can be conveniently disassembled. By controlling the temperature at 170-205 DEG C, the PC diaphragm itself will be damaged if the temperature is too high, and the PC diaphragm cannot meet the softening requirement if the temperature is too low, so as to damage the PC diaphragm after stretching, affect the subsequent use, and reduce the yield. Therefore, the application effectively overcomes the shortcomings of the prior art and has high industrial utilization value.

[0043] The above embodiments only exemplarily illustrate the principles and effects of the application, and are not used to limit the application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought of the application should be covered by the claims of the application.

Claims

1. A PC film pressing device, characterized in that, The device includes a frame, a film pressing mechanism, and a top film mechanism. The film pressing mechanism and the top film mechanism are located opposite each other at both ends of the frame. The top film mechanism includes a film plate, a top film driving component, and a heating plate. A base is provided at the bottom of the frame, and the film plate is disposed on the base. The film plate has a film through-slot. A heating through-slot is provided below the film plate inside the base. The size of the heating through-slot is smaller than the size of the film plate. The top film driving component is located below the base, and the heating plate is located at the movable end of the top film driving component. The top film driving component drives the heating plate to move toward the film plate. A top film seat is provided on the end face of the heating plate near the film plate. The size of the top film seat matches the size of the film through-slot. The heating plate is connected to an external heat source. The film pressing mechanism includes a film pressing drive and a film pressing plate. The film pressing drive is mounted on the frame, and the film pressing plate is located at the movable end of the film pressing drive. The film pressing plate is slidably connected to the frame. A film groove is provided on the end face of the film pressing plate near the film plate side. The size of the film groove matches the size of the film through groove. The base has symmetrically arranged diaphragm lifting drive components on both sides of the diaphragm plate. The fixed end of the diaphragm lifting drive component is located on the base, and the movable end of the diaphragm lifting drive component is connected to the diaphragm. The diaphragm plate is also provided with diaphragm positioning posts.

2. The PC film pressing device according to claim 1, characterized in that: The frame is provided with a vertical slide rail, and a slider is slidably connected to the vertical slide rail. The pressing plate is provided with a mounting block, and the mounting block is mounted on the slider by a fixing component.

3. The PC film pressing device according to claim 1, characterized in that: A base is also provided between the movable end of the top membrane drive component and the heating plate, and the size of the base is larger than the size of the heating channel.

4. The PC film pressing device according to claim 3, characterized in that: Two sets of guide rod fixing seats are symmetrically arranged on both sides of the heating plate on the base. Guide rods are slidably connected to the guide rod fixing seats. The guide rods pass through the base, the base plate and the membrane plate, and the two ends of the guide rods extend out to the top membrane seat and the membrane plate, respectively.

5. A process flow using the PC film pressing apparatus as described in any one of claims 1-4, characterized in that: Includes the following steps, a. Place the diaphragm to be processed onto the diaphragm plate and position the diaphragm using the diaphragm positioning pins; b. Heat the top film seat with a heating plate to raise the temperature of the top film seat to 170-205℃; c. The pressure plate moves downwards, pressing the diaphragm onto the pressure plate; d. The top membrane drive unit drives the top membrane seat to move upward, and uses the heated top membrane seat to press the membrane sheet below the pressing plate. The pressing time is 25-30 seconds, and the pressing pressure is controlled at 5-7 kg. e. Cool the top membrane seat after the membrane pressing process.

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