A hot pressing device for film production

Abstract

The present invention discloses a hot pressing device for film production, which relates to the technical field of hot pressing devices for film production, including a machine, a punch head installed on the top of the machine, a heating platform slidably installed inside the machine, and a lower mold platform installed in the middle of the machine, the side of the lower mold platform is provided with a pressing mechanism for fitting and shaping a film; the interior of the lower mold platform is provided with a feeding mechanism for pushing the film to automatically return; the heating platform drives the pressing mechanism to synchronously run and press the film to ensure that the film will not be greatly deformed when heated, and at the same time, the pressing punch can squeeze the pressing mechanism to connect to the feeding mechanism, and realize automatic feeding of the film by linkage with the feeding mechanism. The hot pressing device disclosed by the present invention has the effects of stable operation, improving the quality of the finished film and realizing automatic feeding.

Description

Technical Field

[0001] The invention relates to the technical field of hot pressing devices for film production, and in particular to a hot pressing device for film production. Background Art

[0002] In-mold injection molding refers to the process of printing a film, forming it through a forming machine, and then placing it in an injection mold after cutting. The most notable feature of the process is that the surface is a hardened transparent film, the middle is a printed pattern layer, and the back is a plastic layer. Because the ink is sandwiched in the middle, the product can prevent the surface from being scratched and is resistant to friction, and can maintain bright colors for a long time without fading.

[0003] When this type of thin film diaphragm is produced and processed, the operator is required to place the diaphragm on a mold of a specific shape, heat it first and then stamp it; and the existing curved diaphragm, because the diaphragm is required to have a certain curved surface after processing and forming, when the user places the diaphragm in the mold, the diaphragm needs to be inserted into the positioning rod in the mold, and after hot pressing is completed, the mold is removed from the positioning rod. Therefore, in the actual production process, there are the following problems; on the one hand, since the existing diaphragm is made of a colloid material, the diaphragm will undergo different degrees of warping and expansion during the heating process, and when the machine head stamps the diaphragm again, it will affect the quality of the diaphragm after forming; on the other hand, after the hot pressing is completed, due to the expansion and contraction of the diaphragm when heated, the gap between the diaphragm and the positioning rod will change to a certain extent. At this time, every time the operator takes the diaphragm, it is necessary to laboriously pull off the shaped diaphragm. During long-term diaphragm processing, the operator's labor will be greatly increased, resulting in the inconvenient use of the equipment. Summary of the invention

[0004] The present invention discloses a hot pressing device for film production, aiming to solve the technical problems that an existing arc-shaped diaphragm will warp and expand to varying degrees when heated during processing, and when the head of the machine punches the diaphragm again, the quality of the diaphragm after forming will be affected. In addition, due to the expansion and contraction deformation of the diaphragm due to heat, the gap between the diaphragm and the positioning rod will change to a certain extent. Every time the operator takes the diaphragm, the shaped diaphragm needs to be pulled off with great effort, which greatly increases the workload of the operator and the use of the equipment is not convenient enough.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A hot pressing device for film production, comprising a machine platform, a punch head installed on the top of the machine platform, a heating platform slidably installed inside the machine platform, and a lower mold platform installed in the middle of the machine platform, wherein a pressing mechanism for laminating a shaped film is provided on the side of the lower mold platform;

[0007] The lower mold table is provided with a material unloading mechanism for pushing the diaphragm to be automatically unloaded;

[0008] The heating platform drives the pressing mechanism to run synchronously to press the diaphragm, ensuring that the diaphragm will not be greatly deformed when heated. At the same time, the pressing head can squeeze the pressing mechanism to connect to the blanking mechanism, and automatically blank the diaphragm by linking with the blanking mechanism.

[0009] By additionally arranging a pressing mechanism inside the traditional hot press, when the heating platform heats the diaphragm inside the lower mold table, the movable heating platform can synchronously push the pressing mechanism to move horizontally and vertically fit the surface of the diaphragm, thereby reducing the deformable space of the diaphragm without affecting the shrinkage of the diaphragm. When the punch head squeezes the diaphragm and the pressing mechanism, the quality of the finished diaphragm can be greatly improved. At the same time, when the squeezed pressing mechanism resets and moves, it can further pull the unloading mechanism additionally arranged on the top of the lower mold table, causing the unloading mechanism to move upward and tilt sideways, thereby realizing automatic unloading of the formed diaphragm, greatly improving the quality of the finished diaphragm, realizing the automation of equipment operation, and improving the working efficiency and comprehensiveness of the equipment.

[0010] In a preferred embodiment, the pressing mechanism includes a connecting platform horizontally fixed to the side end of the lower mold platform, and L-shaped grooves are provided on both sides of the interior of the connecting platform. The number of the L-shaped grooves is two and they are symmetrically distributed in the horizontal direction. A push rod is slidably installed inside each of the L-shaped grooves, and a connecting piece is fixedly installed on one side of the push rod. An upper mold pressure plate is horizontally connected between the two connecting pieces, and the upper mold pressure plate is slidably installed inside the connecting platform.

[0011] By arranging a connecting platform on the side of the lower mold platform, when the heating platform moves horizontally, the moving heating platform can drive the push rod to move horizontally along the inside of the L-shaped groove, and at the same time push the upper mold pressing plate hidden in the connecting platform to move synchronously; when the push rod moves to the bottom of one end of the L-shaped groove, the downward push rod can drive the upper mold pressing plate to move downward synchronously, so that the upper mold pressing plate completes the horizontal movement and then the vertical movement, and is placed on the surface of the diaphragm; when the heating platform heats the diaphragm, the upper mold pressing plate can reduce the deformable space of the diaphragm without affecting the shrinkage of the diaphragm; when the punch head squeezes the diaphragm and the upper mold pressing plate, the upper mold pressing plate can use its own smooth surface to greatly improve the quality of the finished diaphragm product, and the upper mold pressing plate can customize the shape and pattern of the lower surface according to actual needs, thereby further improving the functionality of the equipment while improving the quality of the finished diaphragm product.

[0012] In a preferred embodiment, the unloading mechanism includes a retaining groove vertically opened inside the lower mold table, the retaining grooves are multiple and symmetrically distributed inside the lower mold table in a rectangular shape, and a spring is vertically fixed inside each of the retaining grooves, and the tops of the multiple springs are commonly fixedly connected to a lower mold push plate, and the lower mold push plate is attached to the top of the lower mold table, and one side of the upper mold pressure plate is provided with multiple evenly distributed latching parts, and one side of the lower mold push plate is provided with multiple evenly distributed latching grooves, and the latching parts can be snap-connected to the inside of the latching grooves.

[0013] By setting a spring-connected lower mold push plate structure on the top of the lower mold table, when the upper mold pressure plate is pushed by the punch head and tightly squeezed against the diaphragm, the latching piece on one side of the upper mold pressure plate will be engaged in the latching groove on one side of the lower mold push plate, and as the upper mold pressure plate is reset, the latching piece and the latching groove will form a unilateral pulling force on the lower mold push plate, causing the lower mold push plate to lift and tilt, thereby automatically removing the diaphragm from the lower mold push plate, so that the existing equipment has the ability of automatic unloading, thereby improving the functionality and perfection of the equipment.

[0014] In a preferred solution, a push plate is slidably mounted on the bottom of one side of each L-shaped groove, and an elastic member is fixedly connected between the push plate and the interlayer of the L-shaped groove.

[0015] By providing a push plate with an elastic member structure, the push plate generates a reset pushing force on the downwardly moved push rod, thereby driving the upper mold pressing plate to reset and move upward, thereby ensuring the integrity of the operation of the equipment.

[0016] In a preferred solution, a pulley is rotatably mounted on the top of each of the push rods, and the pulley is in pressing contact with the side end of the heating platform.

[0017] By arranging a pulley structure at the top of the push rod, the heating platform assists in pushing the push rod. The heating platform can drive the push rod to move horizontally through the pulley, and can also squeeze the push rod through the pulley, causing the push rod to move vertically, thereby driving the upper mold pressing plate to move horizontally and vertically, thereby ensuring the smooth operation of the equipment.

[0018] In a preferred solution, a sliding groove is horizontally opened on the inner side of the lower mold table, a damping member is slidably installed inside the sliding groove, and the damping member is installed and connected to the side surface of the lower mold push plate.

[0019] By providing a damping member structure slidably installed inside the sliding groove, the damping member moves synchronously with the lower mold push plate, and cooperates with the unilateral pushing force of the upper mold pressure plate on the lower mold push plate, causing the lower mold push plate to tilt and then slowly return to rotation, thereby increasing sufficient time for automatic unloading of the diaphragm and ensuring the integrity of the operation of this equipment.

[0020] In a preferred solution, a positioning rod is vertically fixed inside each retention groove, and the spring is sleeved on the outer side of the positioning rod.

[0021] The positioning rod is provided to assist the operator in installing the diaphragm, and at the same time ensure that the diaphragm will not be greatly deformed when heated, thereby improving the perfection and convenience of the equipment when used.

[0022] In a preferred embodiment, a positioning groove is vertically opened inside the lower mold push plate. The number of the positioning grooves is several and they are evenly distributed in a rectangular shape inside the lower mold push plate. The inner wall diameter of the positioning groove is larger than the diameter of the positioning rod, and the positioning rod passes through the interior of the positioning groove.

[0023] By providing a positioning groove structure with an inner diameter larger than the inner diameter of the positioning rod, a single-sided pulling force is formed on the lower mold push plate in cooperation with the latching piece and the latching groove, thereby ensuring that the lower mold push plate can be tilted, thereby ensuring that the lower mold push plate can play a normal unloading role and ensuring the integrity of the equipment operation.

[0024] As can be seen from the above, the hot pressing device for film production provided by the present invention has the following improvements and advantages compared with the prior art:

[0025] First: on the basis of the traditional hot pressing device, a connecting platform is arranged on the side of the lower mold platform. When the heating platform moves horizontally, it can drive the push rod to move horizontally and vertically along the inside of the L-shaped groove, thereby pushing the additionally arranged upper mold pressing plate to move synchronously and be placed on the surface of the diaphragm. When the heating platform heats the diaphragm, the upper mold pressing plate can reduce the deformable space of the diaphragm without affecting the shrinkage of the diaphragm. When the punch head squeezes the diaphragm and the upper mold pressing plate, the upper mold pressing plate can use its own smooth surface to greatly improve the quality of the finished diaphragm, and the upper mold pressing plate can customize the shape pattern of the lower surface according to actual needs, thereby improving the functionality of the equipment while improving the quality of the finished diaphragm.

[0026] Secondly, a spring-connected lower mold push plate structure is arranged on the top of the lower mold table. When the upper mold pressure plate is pushed by the punch head and tightly squeezed against the diaphragm, the latching piece on one side of the upper mold pressure plate will be engaged in the latching groove on one side of the lower mold push plate, and as the upper mold pressure plate is reset, the latching piece and the latching groove will form a unilateral pulling force on the lower mold push plate, causing the lower mold push plate to lift and tilt, thereby automatically removing the diaphragm from the lower mold push plate, so that the existing equipment has the ability to automatically unload materials, thereby further improving the functionality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a hot pressing device for film production proposed by the present invention.

[0028] Figure 2 This is a schematic diagram of the internal structure of a hot pressing device for film production proposed by the present invention.

[0029] Figure 3 This is a schematic diagram of the structure of a lower mold table of a hot pressing device for film production proposed by the present invention.

[0030] Figure 4 This is an exploded diagram of the structure of a material discharge mechanism of a hot pressing device for film production proposed by the present invention.

[0031] Figure 5 The present invention is a side structural cross-sectional view of a lower mold table of a hot pressing device for film production proposed by the present invention.

[0032] Figure 6 This is a schematic diagram of the operating state of a lower mold table of a hot pressing device for film production proposed by the present invention.

[0033] Figure 7 This is a schematic diagram of the state of the lower mold push plate of a hot pressing device for film production proposed by the present invention when unloading.

[0034] Figure 8 This is a schematic diagram of the structure of an upper mold pressing plate of a hot pressing device for film production proposed by the present invention.

[0035] Fig. 9 This is a schematic diagram of the structure of a lower mold push plate of a hot pressing device for film production proposed by the present invention.

[0036] In the figure: 1. Machine table; 2. Punching head; 3. Heating platform; 4. Lower mold table; 5. Pressing mechanism; 501. Connecting table; 502. L-shaped groove; 503. Push rod; 504. Connecting piece; 505. Upper mold pressure plate; 506. Elastic piece; 507. Push plate; 508. Pulley; 6. Unloading mechanism; 601. Retention groove; 602. Spring; 603. Lower mold push plate; 604. Stuck piece; 605. Stuck groove; 606. Sliding groove; 607. Damping piece; 608. Positioning rod; 609. Positioning groove; 610. Unloading box; 7. Protective plate. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] A hot pressing device for film production disclosed in the present invention is mainly used in a scenario of hot pressing and blanking of an arc-shaped film.

[0039] Reference Figures 1 to 9 A hot pressing device for film production comprises a machine platform 1, a punch head 2 mounted on the top of the machine platform 1, a heating platform 3 slidably mounted inside the machine platform 1, and a lower mold platform 4 mounted in the middle of the machine platform 1, and a pressing mechanism 5 for laminating a shaped film is arranged on the side of the lower mold platform 4;

[0040] The lower mold table 4 is provided with a material unloading mechanism 6 for pushing the diaphragm to be automatically unloaded;

[0041] The heating platform 3 drives the pressing mechanism 5 to run synchronously to press the diaphragm to ensure that the diaphragm will not undergo significant deformation when heated. At the same time, the downward pressing punch 2 can squeeze the pressing mechanism 5 to connect to the unloading mechanism 6, and realize automatic unloading of the diaphragm by linking with the unloading mechanism 6.

[0042] In this embodiment: the operator places the film to be hot-pressed on the top of the lower mold table 4, and starts the whole equipment at the same time. The heating platform 3 runs first, moves horizontally and squeezes the pressing mechanism 5, so that the pressing mechanism 5 and the heating platform 3 run synchronously to the top of the lower mold table 4. At this time, the pressing mechanism 5 is attached to the film on the top of the lower mold table 4, and the heating platform 3 heats the film through the pressing mechanism 5. The film shrinks during the heating process, but it is blocked by the pressing mechanism 5 and cannot be warped to a large extent, ensuring the product quality; after a period of time, the heating platform 3 performs a half-stroke It resets and moves, but the pressing mechanism 5 is still attached to the top of the diaphragm. At this time, the punching head 2 starts, moves vertically and squeezes the pressing mechanism 5, causing the pressing mechanism 5 to tightly press the diaphragm to punch the diaphragm. At the same time, the pressing mechanism 5 will be connected with the blanking mechanism 6. When the punching head 2 resets and moves, the pressing mechanism 5 that loses the extrusion restriction will pull the blanking mechanism 6 to rise synchronously. During the lifting process, the blanking mechanism 6 tilts and disconnects from the pressing mechanism 5. At this time, the diaphragm will slide along the inclined surface of the blanking mechanism 6 and detach, completing the blanking work of the finished diaphragm and completing the entire work process.

[0043] It should be additionally explained that: a protective plate 7 is fixedly installed on both sides of the machine platform 1 .

[0044] In the above scheme, considering that the diaphragm will warp and expand to varying degrees during the heating process, when the punch head 2 punches the diaphragm again, it will affect the quality of the diaphragm after forming. Therefore, in order to ensure the quality of the diaphragm after forming, the specific operations are as follows.

[0045] Reference Figures 3 to 8 In a preferred embodiment, the pressing mechanism 5 includes a connecting platform 501 horizontally fixed to the side end of the lower mold platform 4, and L-shaped grooves 502 are opened on both sides of the interior of the connecting platform 501. The number of L-shaped grooves 502 is two and they are symmetrically distributed along the horizontal direction. A push rod 503 is slidably installed inside each L-shaped groove 502, and a connecting piece 504 is fixedly installed on one side of the push rod 503. An upper mold pressing plate 505 is horizontally connected between the two connecting pieces 504, and the upper mold pressing plate 505 is slidably installed inside the connecting platform 501.

[0046] In this embodiment, the operator places the film to be hot-pressed on the top of the lower mold table 4, and starts the entire equipment at the same time. The heating platform 3 runs first, moves horizontally and squeezes the push rod 503, causing the push rod 503 and the connecting piece 504 to slide horizontally along the inside of the L-shaped groove 502, and drives the upper mold pressing plate 505 to move synchronously, moving out from the inside of the connecting table 501 until the upper mold pressing plate 505 moves to the top of the film. At this time, the heating platform 3 continues to move, and the moving heating platform 3 will pass over the top of the push rod 503 and squeeze The push rod 503 causes the push rod 503 to move toward the bottom of one end of the L-shaped groove 502, and at the same time drives the upper mold pressing plate 505 to move vertically synchronously, so as to fit on the top of the lower mold table 4 to fit the diaphragm. At this time, the heating platform 3 and the upper mold pressing plate 505 are distributed directly above the lower mold table 4, and the heating platform 3 starts to work, and heats the diaphragm through the upper mold pressing plate 505. The diaphragm will shrink during the heating process, but it will be blocked by the upper mold pressing plate 505 and cannot cause significant warping, thereby ensuring product quality.

[0047] It should be additionally explained that: a pulley 508 is rotatably mounted on the top of each push rod 503, and the pulley 508 is pressed and contacted with the side end of the heating platform 3 to reduce friction.

[0048] In the above scheme, it is considered that after the hot pressing of the diaphragm is completed, the diaphragm will expand and contract when heated. At this time, every time the operator takes the diaphragm, he needs to pull off the shaped diaphragm with great effort. The use of the equipment is not convenient enough. The specific operation is as follows.

[0049] Reference Figures 1 to 9 In a preferred embodiment, the unloading mechanism 6 includes a retaining groove 601 vertically opened inside the lower mold table 4. The number of the retaining grooves 601 is several and they are symmetrically distributed in a rectangular shape inside the lower mold table 4, and a spring 602 is vertically fixed inside each retaining groove 601. The tops of the several springs 602 are fixedly connected to a lower mold push plate 603. The lower mold push plate 603 is attached to the top of the lower mold table 4. One side of the upper mold pressure plate 505 is provided with several evenly distributed jamming parts 604, and one side of the lower mold push plate 603 is provided with several evenly distributed jamming grooves 605. The jamming parts 604 can be snap-connected to the inside of the jamming grooves 605.

[0050] In this embodiment: the heating platform 3 starts to work, and after the diaphragm is heated by the upper mold pressing plate 505, the heating platform 3 performs a half-way reset movement, and loses the squeeze on the top of the push rod 503, causing the upper mold pressing plate 505 to reset upward, but the side end of the push rod 503 is blocked, causing the upper mold pressing plate 505 to still be distributed on the top of the diaphragm and the lower mold pushing plate 603. At this time, the punch head 2 starts to run, moves vertically and squeezes the upper mold pressing plate 505, pushing the upper mold pressing plate 505 to move vertically and tightly squeeze the diaphragm, allowing the diaphragm to be shaped, while a number of jamming pieces 604 located at the side end of the upper mold pressing plate 505 will synchronously engage with the jamming pieces 604 located at the lower mold pushing plate 503. After a period of time, the punch head 2 is reset and moved inside the several card slots 605 at the side end of the plate 603, and the extrusion force on the upper mold platen 505 is lost while moving. At this time, the upper mold platen 505 is reset and moved, and the lower mold push plate 603 is pulled from one side through the engaged card slots 604 and the card slots 605, so that the lower mold push plate 603 overcomes the resistance of several springs 602 and moves vertically synchronously, and drives the diaphragm to move synchronously, until the upper mold platen 505 is completely reset, the card slots 604 lose the engagement relationship with the card slots 605. In this process, the lower mold push plate 603, which is pulled on one side, will tilt and be pulled by the springs 602 to reset and move. Figure 7 As shown; the formed diaphragm will slide along the surface of the lower mold push plate 603, thereby realizing automatic unloading.

[0051] Among them, it is necessary to supplement that: a sliding groove 606 is horizontally opened on the inner side of the lower mold table 4, and a damping member 607 is slidably installed inside the sliding groove 606. At the same time, the damping member 607 is installed and connected to the side of the lower mold push plate 603. When the lower mold push plate 603 moves and tilts, the damping member 607 will move synchronously and reduce the speed of the lower mold push plate 603 to rotate and reset, so that the formed diaphragm can be discharged better.

[0052] Further, it is supplemented that: a material discharge box 610 is horizontally fixed to the side of the machine table 1, and the material discharge box 610 and the lower mold table 4 are symmetrically distributed along the horizontal direction, and the material discharge box 610 receives the formed membrane.

[0053] In the above scheme, considering that the upper mold pressing plate 505 that moves downward can be reset, the specific operation is as follows.

[0054] Reference Figure 5 In a preferred embodiment, a push plate 507 is slidably mounted on the bottom of one side of each L-shaped groove 502 , and an elastic member 506 is fixedly connected between the push plate 507 and the interlayer of the L-shaped groove 502 .

[0055] In this embodiment: when the upper mold platen 505 is squeezed, the push rods 503 located on both sides of the upper mold platen 505 will be subjected to force synchronously, thereby squeezing the push plate 507, causing the push plate 507 to overcome the resistance of the elastic member 506 and move vertically; at the same time, when the upper mold platen 505 loses squeezing, the push rods 503 located on both sides of the upper mold platen 505 are pushed by the elastic member 506 and the push plate 507, thereby driving the upper mold platen 505 to reset.

[0056] Reference Figures 3 to 7 In a preferred embodiment, a positioning rod 608 is vertically fixed inside each retention groove 601, and the spring 602 is sleeved on the outer side of the positioning rod 608. A positioning groove 609 is vertically opened inside the lower mold push plate 603. There are several positioning grooves 609 and they are evenly distributed in a rectangular shape inside the lower mold push plate 603. The inner wall diameter of the positioning groove 609 is larger than the diameter of the positioning rod 608, and the positioning rod 608 passes through the inside of the positioning groove 609.

[0057] In this embodiment, when the user places the diaphragm, the diaphragm may be aligned with the positioning rod 608 and placed, thereby ensuring the accuracy of the diaphragm position.

[0058] Working principle: The operator places the diaphragm to be hot-pressed on the top of the lower mold table 4 and starts the whole equipment at the same time. The heating platform 3 runs first, moves horizontally and squeezes the push rod 503, causing the push rod 503 and the connecting piece 504 to slide horizontally along the inside of the L-shaped groove 502, and drives the upper mold pressing plate 505 to move synchronously, moving out from the inside of the connecting table 501 until the upper mold pressing plate 505 moves to the top of the diaphragm. At this time, the heating platform 3 continues to move, and the moving heating platform 3 will pass over the top of the push rod 503 and squeeze the push rod 503, causing the push rod 503 to move toward the L-shaped groove 502. The bottom of the end moves, and at the same time, the upper mold pressing plate 505 is driven to move vertically synchronously, so as to fit above the lower mold platform 4 to fit the diaphragm. At this time, the heating platform 3 and the upper mold pressing plate 505 are both distributed directly above the lower mold platform 4. The heating platform 3 starts to work and heats the diaphragm through the upper mold pressing plate 505. The diaphragm shrinks during the heating process, but it is blocked by the upper mold pressing plate 505 and cannot be warped to a large extent. After the heating of the diaphragm is completed, the heating platform 3 performs a half-way reset movement, loses the squeeze on the top of the push rod 503, and causes the upper mold pressing plate 505 to move upward. The upper mold pressing plate 505 is moved back to the original position, but the side end of the push rod 503 is blocked, so that the upper mold pressing plate 505 is still distributed on the top of the diaphragm and the lower mold pushing plate 603. At this time, the punch head 2 starts to run, moves vertically and squeezes the upper mold pressing plate 505, pushing the upper mold pressing plate 505 to move vertically and tightly squeeze the diaphragm, allowing the diaphragm to be shaped. At the same time, the several clamping parts 604 located at the side end of the upper mold pressing plate 505 will be synchronously engaged with the several clamping grooves 605 located at the side end of the lower mold pushing plate 603. After a period of time, the punch head 2 resets and moves, and loses the squeezing force on the upper mold pressing plate 505 while moving. At this time, the upper The mold pressing plate 505 resets and moves, and at the same time, pulls the lower mold push plate 603 from one side through the engaged latching piece 604 and the latching groove 605, causing the lower mold push plate 603 to overcome the resistance of several springs 602 and move vertically synchronously, and drive the diaphragm to move synchronously until the upper mold pressing plate 505 is completely reset, and the latching piece 604 loses the engagement relationship with the latching groove 605. During this process, the lower mold push plate 603 pulled on one side will tilt and be pulled by the spring 602 to reset and move, and the formed diaphragm will slide along the surface of the lower mold push plate 603, thereby realizing automatic unloading and completing the entire workflow.

[0059] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hot pressing device for film production, comprising a machine platform (1), a punch head (2) mounted on the top of the machine platform (1), a heating platform (3) slidably mounted inside the machine platform (1), and a lower mold platform (4) mounted in the middle of the machine platform (1), characterized in that: A pressing mechanism (5) for laminating the shaped film is provided on the side of the lower mold platform (4); The lower mold table (4) is provided with a material discharge mechanism (6) for driving the diaphragm to be automatically discharged. The pressing mechanism (5) comprises a connecting platform (501) horizontally fixed to the side end of the lower mold platform (4), L-shaped grooves (502) are provided on both sides of the interior of the connecting platform (501), the number of the L-shaped grooves (502) is two and they are symmetrically distributed along the horizontal direction, a push rod (503) is slidably installed inside each of the L-shaped grooves (502), a connecting piece (504) is fixedly installed on one side of the push rod (503), an upper mold pressing plate (505) is horizontally connected between the two connecting pieces (504), and the upper mold pressing plate (505) is slidably installed inside the connecting platform (501); When the heating platform (3) moves horizontally, the moving heating platform (3) can drive the push rod (503) to move horizontally along the inside of the L-shaped groove (502), and at the same time drive the upper mold pressing plate (505) hidden in the connecting platform (501) to move synchronously. When the push rod (503) moves to the bottom of one end of the L-shaped groove (502), the downward moving push rod (503) can drive the upper mold pressing plate (505) to move downward synchronously, so that the upper mold pressing plate (505) completes the horizontal movement and then the vertical movement. The unloading mechanism (6) comprises a retaining groove (601) vertically opened inside the lower mold platform (4), the retaining grooves (601) are in plurality and are symmetrically distributed in a rectangular shape inside the lower mold platform (4), and a spring (602) is vertically fixed inside each retaining groove (601), and the tops of the plurality of springs (602) are fixedly connected to a lower mold push plate (603), and the lower mold push plate (603) is attached to the top of the lower mold platform (4), and a plurality of evenly distributed clamping parts (604) are arranged on one side of the upper mold pressing plate (505), and a plurality of evenly distributed clamping grooves (605) are arranged on one side of the lower mold push plate (603), and the clamping parts (604) can be clamped and connected to the inside of the clamping grooves (605); When the upper mold pressing plate (505) is pushed by the punch head (2) and tightly squeezed against the diaphragm, the latching member (604) located on one side of the upper mold pressing plate (505) will be engaged in the latching groove (605) on one side of the lower mold pushing plate (603), and as the upper mold pressing plate (505) is reset, the latching member (604) and the latching groove (605) will form a unilateral pulling force on the lower mold pushing plate (603), causing the lower mold pushing plate (603) to lift and tilt, thereby automatically removing the diaphragm from the lower mold pushing plate (603).

2. A hot pressing device for film production according to claim 1, characterized in that: A push plate (507) is slidably mounted on the bottom of one side of each L-shaped groove (502), and an elastic member (506) is fixedly connected between the push plate (507) and the interlayer of the L-shaped groove (502).

3. A hot pressing device for film production according to claim 2, characterized in that: A pulley (508) is rotatably mounted on the top of each push rod (503), and the pulley (508) is pressed and contacted with the side end of the heating platform (3).

4. A hot pressing device for film production according to claim 3, characterized in that: A sliding groove (606) is horizontally provided on the inner side of the lower mold platform (4), and a damping member (607) is slidably installed inside the sliding groove (606). At the same time, the damping member (607) is installed and connected to the side of the lower mold push plate (603).

5. A hot pressing device for film production according to claim 4, characterized in that: A positioning rod (608) is vertically fixed inside each retention groove (601), and the spring (602) is sleeved on the outside of the positioning rod (608).

6. A hot pressing device for film production according to claim 5, characterized in that: A positioning groove (609) is vertically opened inside the lower mold push plate (603), and the positioning grooves (609) are multiple in number and are evenly distributed in a rectangular shape inside the lower mold push plate (603), and the inner wall diameter of the positioning groove (609) is larger than the diameter of the positioning rod (608), and the positioning rod (608) passes through the inside of the positioning groove (609).

7. A hot pressing device for film production according to claim 1, characterized in that: A material discharge box (610) is horizontally fixed on the side of the machine platform (1).

8. A hot pressing device for film production according to claim 7, characterized in that: A protective plate (7) is fixedly mounted on each side of the machine platform (1).

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