Film forming die

Abstract

The utility model discloses a film forming mold which comprises a driving device arranged at the bottom of an external rack; the plastic uptake upper mold is arranged at the bottom of the driving device and enables the driving device to drive the plastic uptake upper mold to ascend and descend, a mounting base is arranged at the bottom of the plastic uptake upper mold, a plurality of mounting cavities are formed in the bottom of the mounting base, storage pressing heads and elastic pieces are arranged in the mounting cavities, the first frame pressing heads are arranged at the bottoms of the elastic pieces, and the second frame pressing heads are arranged at the bottoms of the elastic pieces. The first frame pressing head is in a frame shape, the storage pressing head is located in an inner frame of the first frame pressing head, and the bottom of the first frame pressing head protrudes downwards out of the bottom of the storage pressing head. The plastic uptake lower mold is located below the plastic uptake upper mold and used for being combined with the plastic uptake upper mold, and a plurality of forming bases are arranged at the top of the plastic uptake lower mold; according to the film forming mold, the technical problem that defective products are generated due to the fact that the frame is prone to wrinkles can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the blister box production field, in particular to a film forming die. BACKGROUND

[0002] Blister boxes are widely used in food, electronic products, toys, cosmetics, medical devices and other industries for loading. In the production of blister boxes, the film material needs to be sent to the heating area of the blister machine, heated to the softening point by the heater. During this process, the film material becomes soft and easy to shape. The plastic sheet after heating and softening is placed above the blister lower die. The blister upper die and the blister lower die are closed, so that the softened film is extruded into the forming cavity. The vacuum pump is started, and the vacuum suction force tightly adsorbs the plastic sheet inside the forming cavity of the blister lower die. The shape of the die determines the shape of the final product.

[0003] In related technologies, the blister box is usually composed of a frame and a storage part. The storage part is relatively thick, and is used to load articles. The frame is relatively thin, which leads to the fact that when the frame and the storage part are extruded and formed at the same time, the frame cools faster than the storage part due to its small thickness. The frame is subjected to the resistance of the storage part which has not completely cooled, so that the shrinkage speed of the frame is faster than that of the inside, thereby generating internal stress, which causes the frame to easily produce wrinkles, resulting in the generation of defective products. Practical new type content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides a film forming die, which can solve the technical problem that the frame is prone to produce wrinkles, resulting in the generation of defective products.

[0005] According to the film forming die of the present application, the film forming die comprises:

[0006] A driving device is arranged at the bottom of the external rack;

[0007] A blister upper die is arranged at the bottom of the driving device, so that the driving device drives the blister upper die to rise and fall. The bottom of the blister upper die is provided with a mounting seat, and a plurality of mounting cavities are formed in the bottom of the mounting seat. A storage pressure head and an elastic member are arranged in the mounting cavities. The bottom of the elastic member is provided with a first frame pressure head, which is in the form of a frame. The storage pressure head is located in the inner frame of the first frame pressure head, so that the bottom of the first frame pressure head protrudes downward from the bottom of the storage pressure head.

[0008] The lower blister mold is below the upper blister mold and is used to complete the molding process with the upper blister mold. The top of the lower blister mold is provided with a plurality of forming seats. The bottom of each forming seat is provided with a forming cavity. The forming cavities of the plurality of forming seats correspond to the object pressing heads of the plurality of installation cavities, respectively. The bottom of each forming seat is provided with a second frame pressing head. The second frame pressing head is in the shape of a frame. The forming cavity is located in the inner frame of the second frame pressing head. The second frame pressing heads of the plurality of forming seats correspond to the first frame pressing heads of the plurality of installation cavities, respectively.

[0009] The film forming mold has at least the following beneficial effects. When the film is above the forming seat, the upper blister mold moves downward by the driving device to gradually complete the molding process with the lower blister mold. During the pressing process, the first frame pressing head is in contact with the second frame pressing head first and extrudes a part of the film, so that the frame part is formed first. After the frame is formed, the upper blister mold continues to move downward, the object pressing head moves downward, and the first frame pressing head is compressed during the pressing process to drive the elastic member to shrink, so that the first frame pressing head and the second frame pressing head clamp the frame. When the object pressing head extrudes another part of the film into the forming cavity, the forming of the object part is completed. Since the frame is formed first, the prior pressing design of the first frame pressing head and the second frame pressing head can effectively reduce the stress accumulation in the frame, improve the flatness and appearance quality of the frame, and avoid deformation or damage of the frame caused by the extrusion force of the object part, thereby reducing the quality defects of the product and ensuring that the frame and the object part achieve ideal processing effects at the same time.

[0010] According to some embodiments of the present application, the top of the lower blister mold is provided with a positioning seat. The inside of the positioning seat is provided with a plurality of limiting grooves. The limiting grooves penetrate through the top and bottom of the positioning seat. The limiting grooves are matched with the shapes of the forming seats. The plurality of positioning seats are located inside the plurality of limiting grooves, respectively.

[0011] According to some embodiments of the present application, the top of the positioning seat is provided with a plurality of positioning grooves. The bottom of the mounting seat is provided with a plurality of positioning pins. The plurality of positioning pins are inserted into the plurality of positioning grooves, respectively.

[0012] According to some embodiments of the present application, the inside of the installation cavity is slidably connected with a supporting movable block. The supporting movable block is above the first frame pressing head. The top of the upper blister mold is provided with a lifting device. The lifting device drives the supporting movable block to lift and makes the supporting movable block abut against the first frame pressing head.

[0013] According to some embodiments of the present application, the elastic member is a spring, the inside of the mounting cavity is provided with a piston cylinder, the inside of the piston cylinder is slidably connected with a piston rod, the piston rod is connected with the first frame pressing head, and the piston cylinder and the piston rod are located inside the elastic member.

[0014] According to some embodiments of the present application, the inside of the mounting cavity is provided with a first mounting ring, one end of the elastic member is inserted into the inside of the first mounting ring, the piston cylinder is located inside the first mounting ring, the top of the first frame pressing head is provided with a second mounting ring, the other end of the elastic member is inserted into the inside of the second mounting ring, and the piston rod is located inside the second mounting ring.

[0015] According to some embodiments of the present application, the inside of the first mounting ring is provided with first clamping protrusions on both sides, the first clamping protrusions on both sides of the first mounting ring are clamped with the one end of the elastic member, the inside of the second mounting ring is provided with second clamping protrusions on both sides, and the second clamping protrusions on both sides of the second mounting ring are clamped with the other end of the elastic member.

[0016] According to some embodiments of the present application, the driving device comprises a transmission rod and transmission protrusions, the transmission rod is arranged on the top of the plastic suction upper mold, the transmission protrusions are a plurality of, the plurality of transmission protrusions are arranged on one side of the transmission rod, and any transmission protrusion is used for meshing with an external gear.

[0017] According to some embodiments of the present application, the top of the plastic suction upper mold is provided with a supporting top plate, the inside of the mounting cavity is slidably connected with a movable seat, the object pressing head is arranged on the bottom of the movable seat, the top of the supporting top plate is provided with a lifting air cylinder, and the lifting air cylinder is used for driving the movable seat to lift and fall.

[0018] According to some embodiments of the present application, the bottom of the plastic suction lower mold is provided with a supporting rod, the bottom of the supporting rod is provided with a movable base, and the movable base is used for being connected with an external moving device.

[0019] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0021] Figure 1 It is a structural schematic view of the film forming mold of the present application;

[0022] Figure 2 It is a structural schematic view of the film forming mold of the present application; Figure 1 It is a structural schematic view of the plastic suction lower mold;

[0023] Figure 3 for Figure 2 Exploded diagram of the middle blister lower mold;

[0024] Figure 4 for Figure 2 An exploded diagram of the lower mold of the middle blister from another perspective;

[0025] Figure 5 for Figure 1 Schematic diagram of the structure of the middle blister upper mold;

[0026] Figure 6 for Figure 5 Exploded diagram of the middle blister upper mold;

[0027] Figure 7 for Figure 5 An exploded diagram of the upper mold of the middle blister from another perspective;

[0028] Figure 8 for Figure 6 A structural diagram of the upper mold of the middle blister from another perspective;

[0029] Figure 9 for Figure 7 Schematic diagram of the structure of the piston cylinder and piston rod;

[0030] Figure 10 for Figure 9 Schematic diagram of the structure of the first mounting ring and the second mounting ring.

[0031] Reference numerals:

[0032] Driving device 100, transmission rod 110, transmission cam 111;

[0033] Blister upper mold 200, mounting base 210, movable base 211, placement pressure head 212, first frame pressure head 213, mounting cavity 214, elastic member 220, piston cylinder 221, piston rod 222, first mounting ring 230, first locking protrusion 231, second mounting ring 232, second locking protrusion 233, positioning pin 240, supporting movable block 250, lifting device 251;

[0034] Blister lower mold 300, forming seat 310, forming cavity 320, second frame pressing head 321, positioning groove 322, support rod 330, movable base 331, positioning seat 340, limiting groove 341;

[0035] Support top plate 410 and lifting cylinder 420. DETAILED DESCRIPTION

[0036] Embodiments of the present application are described below in the detailed description and illustrated in the accompanying drawings by which like or similar elements, structures and / or functions have been given the same reference numerals and functionalities (which are intended to indicate like or similar elements) are meant to be included in all embodiments or examples. The embodiments described below are examples of how the application can be implemented, and are not meant to be limiting.

[0037] In the description of the present application, if the orientation description is involved, for example, the orientation or position relationship indicated by up, down, front, back, left, right and the like is based on the orientation or position relationship shown in the drawings, which is only for the purpose of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0038] In the description of the present application, if the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number. If the first, second is described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of technical features indicated.

[0039] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting and the like should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0040] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] Referring to Figures 1 to 10 In some embodiments, the film forming mold includes:

[0042] The driving device 100 is arranged at the bottom of the external rack;

[0043] The blister upper die 200 is arranged at the bottom of the driving device 100, and the driving device 100 drives the blister upper die 200 to move up and down. The bottom of the blister upper die 200 is provided with a mounting seat 210, and a plurality of mounting cavities 214 are arranged at the bottom of the mounting seat 210. A placing pressure head 212 and an elastic element 220 are arranged in the mounting cavity 214. The elastic element 220 is arranged on one side of the placing pressure head 212. A first frame pressure head 213 is arranged at the bottom of the elastic element 220. The first frame pressure head 213 is in a frame shape. The placing pressure head 212 is arranged in the inner frame of the first frame pressure head 213, so that the bottom of the first frame pressure head 213 protrudes downward from the bottom of the placing pressure head 212.

[0044] The blister lower die 300 is arranged below the blister upper die 200 and is used for die combination with the blister upper die 200. A plurality of forming seats 310 are arranged at the top of the blister lower die 300. Forming cavities 320 are arranged at the bottom of the forming seats 310. The forming cavities 320 of the plurality of forming seats 310 correspond to the placing pressure heads 212 of the plurality of mounting cavities 214 respectively. Second frame pressure heads 321 are arranged at the bottom of the forming seats 310. The second frame pressure heads 321 are in a frame shape. The forming cavities 320 are arranged in the inner frames of the second frame pressure heads 321. The second frame pressure heads 321 of the plurality of forming seats 310 correspond to the first frame pressure heads 213 of the plurality of mounting cavities 214 respectively.

[0045] It can be understood that when the film is arranged above the forming seat 310, the blister upper die 200 moves downward through the driving device 100 and gradually completes the die combination process with the blister lower die 300. During the pressing process, the first frame pressure head 213 is in contact with the second frame pressure head 321 first and extrudes the film, so that the frame part is formed first. After the frame is formed, the blister upper die 200 continues to move downward, the placing pressure head 212 moves downward, and the first frame pressure head 213 is compressed during the pressing process and drives the elastic element 220 to shrink, so that the first frame pressure head 213 and the second frame pressure head 321 clamp the frame. When the placing pressure head 212 extrudes another part of the film into the forming cavity 320, the forming of the placing part is completed. Since the frame is formed first, the prior pressing design of the first frame pressure head 213 and the second frame pressure head 321 can effectively reduce the stress accumulation in the frame, improve the flatness and appearance quality of the frame, and avoid the deformation or damage of the frame caused by the extrusion force of the placing part, thereby reducing the quality defects of the product and ensuring that the frame and the placing part achieve ideal processing effects at the same time.

[0046] It should be noted that in order to ensure the position stability of the first frame pressing head 213 and the second frame pressing head 321 when they are pressed together, a movable support block can be arranged in the installation cavity 214, thereby temporarily replacing the elastic member 220 to support the first frame pressing head 213; the protruding depth of the first frame pressing head 213 can be adjusted according to the thickness of the adhesive sheet material, so as to optimize the forming effect of the frame; the forming seat 310 in the vacuum forming lower die 300 can be designed as a detachable module, so as to facilitate replacement of forming cavities 320 of different sizes or shapes, meet the production needs of various product specifications, and increase heating elements in the first frame pressing head 213 or the second frame pressing head 321, so that the heat distribution in the forming process is more uniform, thereby further optimizing the processing effect of the adhesive sheet.

[0047] Referring to Figures 1 to 4 In some embodiments, the top of the vacuum forming lower die 300 is provided with a positioning seat 340, a plurality of limiting grooves 341 are formed in the inside of the positioning seat 340, the limiting grooves 341 penetrate through the top and bottom of the positioning seat 340, the limiting grooves 341 are matched with the shape of the forming seat 310, and a plurality of positioning seats 340 are respectively located in the inside of a plurality of limiting grooves 341.

[0048] It can be understood that the limiting grooves 341 penetrate through the top and bottom of the positioning seat 340, so that the forming seat 310 can be installed in the inside of the limiting groove 341 and constrained by the geometric structure of the limiting groove 341, thereby ensuring that all the forming seats 310 can be accurately aligned with the first frame pressing head 213 and the second frame pressing head 321 or the object pressing head 212 and the forming cavity 320 when the vacuum forming upper die 200 and the vacuum forming lower die 300 are closed, thereby improving the production efficiency and product quality stability.

[0049] In addition, the shape of the limiting groove 341 can be designed as a rectangle, a trapezoid or an arc according to different product requirements, so as to adapt to the forming seat 310 of a special shape; a quick disassembly and assembly device (such as a buckle or a screw fixing device) can be added on the positioning seat 340, so as to facilitate quick replacement of the forming seat 310 and reduce maintenance time; a fine adjustment mechanism can also be embedded in the positioning seat 340, so that the slight deviation of the forming seat 310 can be adjusted externally, thereby further improving the positioning accuracy.

[0050] Referring to Figures 1 to 6 In some embodiments, a plurality of positioning grooves 322 are formed in the top of the positioning seat 340, and a plurality of positioning pins 240 are arranged on the bottom of the mounting seat 210, and the plurality of positioning pins 240 are respectively inserted into the plurality of positioning grooves 322.

[0051] It can be understood that before the mold is closed, the upper mold 200 is lowered by the driving device 100, and the positioning pins 240 at the bottom of the mounting seat 210 are sequentially inserted into the positioning grooves 322 at the top of the lower mold 300, so that the close fit between the positioning pins 240 and the positioning grooves 322 prevents the mold from being laterally or angularly offset when the mold is closed, ensuring that the article placing pressure head 212 and the first frame pressure head 213 of the upper mold 200 are accurately aligned with the forming cavity 320 and the second frame pressure head 321 of the lower mold 300, thereby improving the precision of the mold operation and the forming effect.

[0052] In addition, the positioning pins 240 can be designed in a conical shape or with a guide angle to improve the smoothness of the pins entering the positioning grooves 322; the positioning grooves 322 and the positioning pins 240 can be replaced by a magnetic alignment device to achieve alignment function through magnetic attraction, which is suitable for faster assembly and disassembly requirements; an inductor can be embedded in the positioning pins 240 and the positioning grooves 322 for monitoring whether they are completely aligned, thereby improving the automation level and reducing manual calibration work.

[0053] Referring to Figures 7 to 8 In some embodiments, the inside of the mounting cavity 214 is slidably connected with a support movable block 250, the support movable block 250 is located above the first frame pressure head 213, the top of the upper mold 200 is provided with a lifting device 251, the lifting device 251 drives the support movable block 250 to lift, so that the support movable block 250 is in contact with the first frame pressure head 213.

[0054] It can be understood that when the first frame pressure head 213 is pressed with the second frame pressure head 321, the lifting device 251 drives the support movable block 250 to move, so that the support movable block 250 temporarily provides rigid support to the first frame pressure head 213, thereby temporarily replacing the elastic member 220 to support the first frame pressure head 213, improving the stability of the first frame pressure head 213 when being pressed; after the first frame pressure head 213 is pressed with the second frame pressure head 321, the support movable block 250 is driven to be separated from the first frame pressure head 213, so that the first frame pressure head 213 is clamped with the formed frame through the elastic member 220, preventing the first frame pressure head 213 from damaging the frame.

[0055] Referring to Figures 9 to 10 In some embodiments, the elastic member 220 is a spring, the inside of the mounting cavity 214 is provided with a piston cylinder 221, the inside of the piston cylinder 221 is slidably connected with a piston rod 222, the piston rod 222 is connected with the first frame pressure head 213, and the piston cylinder 221 and the piston rod 222 are located inside the elastic member 220.

[0056] It can be understood that the arrangement of the piston cylinder 221 and the piston rod 222 enhances the movement control accuracy of the first frame pressing head 213. When the plastic injection mold upper mold 200 moves downward, the first frame pressing head 213 is forced to move downward. The sliding of the piston rod 222 is constrained by the piston cylinder 221, ensuring that the movement trajectory of the first frame pressing head 213 is stable and controllable.

[0057] In addition, a sealing ring is added inside the piston cylinder 221 to prevent impurities from entering during sliding and improve the reliability of the assembly. The piston cylinder 221 and the piston rod 222 are designed as detachable modules, which facilitates quick maintenance or replacement of different size piston assemblies to meet the needs of different specifications of molds.

[0058] Referring to Figures 1 to 10 In some embodiments, the inside of the installation cavity 214 is provided with a first installation ring 230, one end of the elastic member 220 is inserted into the inside of the first installation ring 230, the piston cylinder 221 is located inside the first installation ring 230, the top of the first frame pressing head 213 is provided with a second installation ring 232, the other end of the elastic member 220 is inserted into the inside of the second installation ring 232, and the piston rod 222 is located inside the second installation ring 232.

[0059] It can be understood that during the mold closing process, when the first frame pressing head 213 moves downward, the second installation ring 232 moves downward accordingly. Since the two ends of the elastic member 220 are respectively inserted into the first installation ring 230 and the second installation ring 232, it is convenient to guide the deformation position of the elastic member 220, preventing the elastic member 220 from disengaging from the installation position.

[0060] In addition, the connection between the elastic member 220 and the installation ring can be replaced by threads or buckles instead of direct insertion, improving the firmness and anti-vibration ability of the connection; the first installation ring 230 and the second installation ring 232 can be designed as adjustable diameter or height structures to adapt to different specifications of the elastic member 220 or pressure requirements.

[0061] Referring to Figures 9 to 10 In some embodiments, the inside of the first installation ring 230 is provided with first clamping protrusions 231 on both sides, the first clamping protrusions 231 on both sides of the first installation ring 230 are clamped with one end of the elastic member 220, and the inside of the second installation ring 232 is provided with second clamping protrusions 233 on both sides, the second clamping protrusions 233 on both sides of the second installation ring 232 are clamped with the other end of the elastic member 220.

[0062] It can be understood that the first clamping convex 231 and the second clamping convex 233 are respectively arranged on the inner sides of the first mounting ring 230 and the second mounting ring 232, and are used for mechanically fixing the two ends of the elastic member 220. When the elastic member 220 is compressed or rebounds, the first clamping convex 231 and the second clamping convex 233 firmly clamp the outer edge of the elastic member 220, prevent the elastic member 220 from deviating due to stress, and cause uneven distribution of forming pressure or wear of the assembly. In the closing and resetting process of the mold, the clamping convex structure ensures that the elastic member 220 always remains in the designed position, so that the cooperation of the elastic member 220 with the piston assembly and the frame pressure head is more stable and reliable.

[0063] In addition, the first clamping convex 231 and the second clamping convex 233 can be designed as circular arcs, wedges or hooks to enhance the mechanical stability during clamping; the first clamping convex 231 and the second clamping convex 233 can be replaced by clamping structures or threaded fixing methods to further improve the fixing reliability of the elastic member 220; the first clamping convex 231 and the second clamping convex 233 can be integrated with quick release buttons or sliding lock devices to facilitate quick replacement of the elastic member 220 during production, thereby improving work efficiency; a wear-resistant coating (such as a ceramic coating or a high-molecular polymer coating) is added to the contact surface of the first clamping convex 231 and the second clamping convex 233 to reduce wear between the first clamping convex 231 and the second clamping convex 233 and the elastic member 220, thereby prolonging the service life of the assembly.

[0064] Referring to Figures 1 to 8 In some embodiments, the driving device 100 includes a transmission rod 110 and a plurality of transmission convex teeth 111. The transmission rod 110 is arranged at the top of the plastic suction upper mold 200, and the plurality of transmission convex teeth 111 are arranged on one side of the transmission rod 110. Any transmission convex tooth 111 is used to engage with an external gear.

[0065] It can be understood that when the external driving device 100 (such as a motor or a hydraulic motor) drives the gear to rotate, the gear engages with the transmission convex teeth 111 to transmit the rotary power to the transmission rod 110, and the transmission rod 110 generates a linear motion to drive the plastic suction upper mold 200 to realize the lifting action. The distribution of the plurality of transmission convex teeth 111 can ensure the stability of the movement of the transmission rod 110 and provide uniform power support during the lifting of the plastic suction upper mold 200, thereby preventing deviation or shaking.

[0066] In addition, the transmission rod 110 and the transmission convex tooth 111 can be replaced by a lead screw transmission or a rack and pinion transmission to achieve higher precision control effect; the transmission convex tooth 111 can be made of high-strength alloy steel or surface-hardened metal to improve wear resistance and fatigue resistance; the external driving device 100 can adopt a servo motor to realize more accurate dynamic control, and can also be combined with a variable frequency driving system to adjust the lifting speed of the plastic suction upper mold 200; a stress or displacement sensor is integrated on the transmission rod 110 for real-time monitoring of the movement state of the plastic suction upper mold 200, and the intelligent level of operation is improved.

[0067] With reference to Figures 1 to 7 In some embodiments, the top of the plastic suction upper mold 200 is provided with a support top plate 410, the inside of the installation cavity 214 is slidingly connected with a movable seat 211, the storage pressure head 212 is arranged at the bottom of the movable seat 211, and the top of the support top plate 410 is provided with a lifting cylinder 420. The lifting cylinder 420 is used to drive the movable seat 211 to lift.

[0068] It can be understood that when the plastic suction upper mold 200 moves downward, the piston rod 222 of the lifting cylinder 420 moves downward, thereby driving the storage pressure head 212 to gradually extrude the film into the forming cavity 320, completing the molding of the storage part. By arranging the lifting cylinder 420 and the movable seat 211, the present embodiment realizes precise lifting control of the storage pressure head 212, and further improves the operation stability of the mold during the film molding process.

[0069] With reference to Figure 3 In some embodiments, the bottom of the plastic suction lower mold 300 is provided with a support rod 330, and the bottom of the support rod 330 is provided with a movable base 331. The movable base 331 is used to be connected with an external moving device.

[0070] It can be understood that since the storage part is still in a hot state after molding is completed, it needs to be kept in the mold for a certain period of time to complete cooling and solidification; therefore, when the plastic suction upper mold 200 gradually moves away from the plastic suction lower mold 300, the first frame pressure head 213 keeps in contact with the surface of the plastic material under the rebounding action of the elastic member 220, so that the storage part is still attached to the forming cavity 320 of the plastic suction lower mold 300. When the plastic suction upper mold 200 completely separates from the plastic suction lower mold 300, the first frame pressure head 213 gradually separates from the storage part, thereby avoiding deformation or unstable size caused by taking out too early. The movable base 331 is used to be connected with an external moving device, so that the storage part can be conveniently moved after cooling to facilitate processing of the next process.

[0071] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A film forming mold characterized by, The utility model provides a kind of plastic suction moulding machine, including: Driving device, it is located at the bottom of external rack; Blister upper die, it is located at the bottom of the driving device, the driving device drives the blister upper die to go up and down, the bottom of the blister upper die is equipped with mounting seat, the bottom of the mounting seat is equipped with multiple installation cavities, the installation cavity is equipped with article storage pressure head and elastic element, the bottom of the elastic element is equipped with first frame pressure head, the first frame pressure head is frame type, the article storage pressure head is located in the inner frame of the first frame pressure head, so that the bottom of the first frame pressure head protrudes downward the bottom of the article storage pressure head; Blister lower die, it is located below the blister upper die, for with the blister upper die mold, the top of the blister lower die is equipped with multiple forming seats, the bottom of the forming seat is equipped with forming cavity, multiple the forming cavity of the forming seat is respectively with multiple the article storage pressure head of the installation cavity, the bottom of the forming seat is equipped with second frame pressure head, the second frame pressure head is frame type, the forming cavity is located in the inner frame of the second frame pressure head, multiple the second frame pressure head of the forming seat is respectively with multiple the first frame pressure head of the installation cavity.

2. The film forming die of claim 1, wherein, The top of the blister lower die is equipped with positioning seat, the inside of the positioning seat is equipped with multiple limiting grooves, the limiting groove penetrates the top and bottom of the positioning seat, the limiting groove is matched with the shape of the forming seat, multiple the positioning seat is respectively located in multiple the inside of the limiting groove.

3. The film forming die of claim 2, wherein, The top of the positioning seat is equipped with multiple positioning grooves, the bottom of the mounting seat is equipped with multiple positioning pins, multiple the positioning pin is respectively inserted with multiple the positioning groove.

4. The film forming die of claim 1 wherein, The inside of the installation cavity is slidably connected with support movable block, the support movable block is located above the first frame pressure head, the top of the blister upper die is equipped with lifting device, the lifting device drives the support movable block to go up and down, so that the support movable block and the first frame pressure head are in contact.

5. The film forming die of claim 1 wherein, The elastic element is spring, the inside of the installation cavity is equipped with piston cylinder, the inside of the piston cylinder is slidably connected with piston rod, the piston rod is connected with the first frame pressure head, the piston cylinder and the piston rod are located in the inside of the elastic element.

6. The film forming die of claim 5, wherein, The inside of the installation cavity is equipped with first mounting ring, one end of the elastic element is inserted with the inside of the first mounting ring, the piston cylinder is located in the inside of the first mounting ring, the top of the first frame pressure head is equipped with second mounting ring, the other end of the elastic element is inserted with the inside of the second mounting ring, the piston rod is located in the inside of the second mounting ring.

7. The film forming die of claim 6, wherein, The inside of the first mounting ring is equipped with first clamping convex, so that the first clamping convex of the two sides of the first mounting ring is clamped with the outside of one end of the elastic element, the inside of the second mounting ring is equipped with second clamping convex, so that the second clamping convex of the two sides of the second mounting ring is clamped with the outside of the other end of the elastic element.

8. The film forming die of claim 1, wherein, The driving device includes transmission rod and transmission convex teeth, the transmission rod is equipped at the top of the blister upper die, the transmission convex teeth are multiple, multiple the transmission convex teeth are equipped on one side of the transmission rod, and any transmission convex tooth is used for engaging with external gear.

9. The film forming die of claim 8, wherein, The top of the upper blister mold is provided with a supporting top plate, the inside of the mounting cavity is slidably connected with a movable seat, the article placing pressure head is arranged at the bottom of the movable seat, the top of the supporting top plate is provided with a lifting cylinder, and the lifting cylinder is used for driving the movable seat to lift and fall.

10. The film forming die of claim 1, wherein, The bottom of the lower blister mold is provided with a supporting rod, the bottom of the supporting rod is provided with a movable base, and the movable base is used for being connected with an external moving device.

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