Weaken skin alignment equipment and alignment method

Abstract

The invention belongs to the technical field of automotive interiors, and particularly relates to weakened skin alignment equipment and an alignment method. The device comprises a rack, a skin fixing mechanism and a framework fixing mechanism, wherein the skin fixing mechanism and the framework fixing mechanism are fixed on the rack and are arranged up and down at an interval; the skin fixing mechanism comprises a lower mold fixing plate, a profiling lower tire mold with a vacuum hole and an alignment cutter supporting plate, a weakening line profiling alignment cutter is fixed to one end of a sliding guide rail, the sliding guide rail is connected to the alignment cutter supporting plate in a sliding mode, and a fixed pulley center shaft is fixed to the alignment cutter supporting plate at the other end of the sliding guide rail; one end of a rope on a disc of the fixed pulley is connected with the sliding guide rail, and the other end is connected with a configuration block; the framework fixing mechanism comprises an upper die fixing plate and a framework profiling tire die fixed to the bottom of the upper die fixing plate. According to the invention, the air bag area and the large surface of the whole product are coated through the pressing action, so that the workload of subsequent manual coating is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile interior decoration, and in particular relates to a weakened skin alignment device and a alignment method. Background Art

[0002] At present, in the case where both the skin and the frame of the automobile airbag area need to be weakened, in order to ensure that the weakening line on the back of the skin coincides with the weakening line on the front of the frame, the technology of infrared projection + automatic sticker is generally used, that is, infrared projection is used to project the outline of the airbag frame on the front of the skin, and then the robotic arm sticks masking tape along the infrared outline, and then the skin with masking tape is taken to another fetal membrane. The infrared projection of this equipment coincides with the weakening line of the frame airbag, and the masking tape of the skin is manually adjusted to coincide with this ray, and then the skin and the frame are manually heated and bonded to ensure the relative position of the frame and the skin. However, the equipment investment is large, two sets of infrared projection equipment; the process steps are complicated, two stations are operated, and the cycle time is long. Summary of the invention

[0003] The purpose of the present invention is to solve the deficiencies of the above-mentioned background technology and to provide a weakened epidermis alignment device and alignment method.

[0004] The technical solution adopted by the present invention is: a weakened epidermis alignment device, comprising a frame, an epidermis fixing mechanism and a skeleton fixing mechanism fixed on the frame, the skeleton fixing mechanism and the epidermis fixing mechanism are arranged at intervals up and down; the epidermis fixing mechanism comprises a lower mold fixing plate, a contoured lower fetal membrane with vacuum holes and a wire-aligning knife support plate, the weakened line contouring knife is fixed to one end of a sliding guide rail, the sliding guide rail is slidably connected to the wire-aligning knife support plate, the central axis of the fixed pulley is fixed to the wire-aligning knife support plate at the other end of the sliding guide rail, one end of the rope on the disc of the fixed pulley is connected to the sliding guide rail, and the other end is connected to the configuration block; the skeleton fixing mechanism comprises an upper mold fixing plate and a skeleton contouring fetal membrane fixed to the bottom of the upper mold fixing plate, the upper mold fixing plate is driven to rise or fall by a main cylinder, and the skeleton contouring fetal membrane is provided with a first vacuum suction cup.

[0005] In the above scheme, the fixed pulley system is used to achieve force balance and motion control of the wire-aligning knife, ensuring the smoothness and controllability of the wire-aligning knife's movement; the use of counterweights balances the weight of the wire-aligning knife, reduces the burden on the main drive system, and improves the stability and accuracy of the movement.

[0006] More preferably, the alignment knife support plate is located on one side of the contoured lower fetal membrane, and the upper surface is an inclined surface, and the sliding guide rail is obliquely and slidably connected to the upper surface of the alignment knife support plate, wherein the relatively low end of the sliding guide rail extends out of the alignment knife support plate and is fixed to the weakened line contouring alignment knife, and the relatively high end of the sliding guide rail is located on the upper surface of the alignment knife support plate.

[0007] In the above scheme, the upper surface of the wire-aligning knife support plate is an inclined surface that cooperates with the sliding guide rail, and the sliding guide rail slides by pulling the counterweight block on the fixed pulley to drive the movement of the weakened line contouring knife; the inclined surface design enables the sliding guide rail to slide smoothly during the movement, reducing friction and improving the movement accuracy of the wire-aligning knife; the inclined sliding guide rail cooperates with the inclined surface to realize the precise movement of the wire-aligning knife on a specific trajectory, thereby improving the processing accuracy and consistency.

[0008] Preferably, the lower mold fixing plate is provided with a plurality of evenly distributed second vacuum suction cups, and the plurality of second vacuum suction cups are located on the outer circle of the contoured lower fetal membrane to assist in sucking the epidermis.

[0009] More preferably, the locking cylinder is fixed on the alignment knife support plate, the locking cylinder piston rod is limitedly connected to the sliding guide rail, and the locking cylinder is opened or closed by connecting the locking cylinder button.

[0010] More preferably, one side of the lower mold fixing plate is connected to the lower mold connecting plate, the lower mold connecting plate is provided with a first mold guide pin, the lower mold fixing plate is provided with a second mold guide pin, the first mold guide pin and the second mold guide pin are respectively located on different sides of the contoured lower fetal membrane; the upper mold fixing plate is provided with a first mold guide sleeve and a second mold guide sleeve for respectively cooperating with the first mold guide pin and the second mold guide pin; the skeleton fixing mechanism and the surface fixing mechanism perform mold positioning through the first mold guide pin, the second mold guide pin and the first mold guide sleeve and the second mold guide sleeve.

[0011] In the above solution, precise alignment between the upper and lower molds is provided to ensure accurate alignment of the skin and the frame during the mold closing process, thereby improving the accuracy of the overall assembly.

[0012] More preferably, the master cylinder is fixed on the frame, movable guide rods are arranged on both sides of the master cylinder for guiding, the master cylinder piston rod is fixedly connected to the upper mold fixing plate, and one end of the movable guide rod is fixed to the upper mold fixing plate.

[0013] More preferably, a first skin positioning pin is provided on the lower mold connecting plate, and a second skin positioning pin is provided on the lower mold fixing plate.

[0014] Preferably, the skeleton-shaped fetal membrane is provided with skeleton positioning pins, and the skeleton positioning pins include at least one first skeleton positioning pin and one second skeleton positioning pin distributed at different positions around the skeleton-shaped fetal membrane.

[0015] Preferably, a locking plate is provided on the upper mold fixing plate, an upper mold locking cylinder is provided on the frame, and the piston rod of the upper mold locking cylinder cooperates with the locking plate to limit the position for unlocking or locking the upper mold fixing plate.

[0016] A method for aligning a line of a weakened epidermis alignment device, comprising: laying the weakened epidermis with its back side facing upward on a contoured lower fetal membrane with vacuum holes to initially position the epidermis, pulling a counterweight block of a fixed pulley to pull a weakened line contour alignment knife at a rear end position to an epidermis weakened line region through a sliding guide rail, moving the epidermis, aligning the weakened line contour alignment knife with the weakened line on the back side of the epidermis, fixing the epidermis with the contoured lower fetal membrane with vacuum holes, and returning the weakened line contour alignment knife to an initial position;

[0017] Place the front side of the skeleton face down on the skeleton-shaped fetal membrane for fixation. The upper mold fixing plate is driven down by the main cylinder, and the skeleton fixing mechanism and the skin fixing mechanism are molded and pressure maintained, so that the weakened hole of the skeleton and the weakened line of the skin are coincident, the suture of the airbag area is aligned, and the front side of the product is pressed together. After the pressure maintenance is completed, the upper mold fixing plate is driven up by the main cylinder, the skin and skeleton are taken out, and the above operation is repeated.

[0018] The equipment investment of the present invention is low, and only one equipment is needed to meet the line setting requirements; the operation is simple, the process is short, and the work efficiency is high. The airbag area and the entire product large surface are coated through the pressing action, saving the workload of subsequent manual coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the frame structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the epidermis fixing mechanism of the present invention;

[0022] Figure 4 It is a side view of the epidermis fixing mechanism of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the skeleton fixing mechanism of the present invention;

[0024] Figure 6 This is a bottom view of the frame fixing mechanism of the present invention;

[0025] Figure 7 This is a schematic diagram of fixing the upper mold fixing plate of the present invention;

[0026] Figure 8 It is a schematic diagram of fixing the lower mold fixing plate of the present invention.

[0027] In the figure, 1-1-frame, 1-2-skin fixing mechanism, 1-3-skeleton fixing mechanism, 2-1-main frame, 2-2-heating gun, 2-3-start button, 2-4-emergency stop button, 2-5-operation screen, 2-6-safety grating, 2-7-vacuum pump, 2-8-forklift slot, 2-9-electric cabinet, 2-10-counterweight wheel, 2-11-vacuum button, 3-1-lower mold fixing plate, 3-2- Second vacuum suction cup, 3-3-contact lower fetal membrane, 3-4-weakened line profiling alignment knife, 3-5-sliding guide rail, 3-6-locking cylinder, 3-7-first skin positioning pin, 3-8-first mold guide column, 3-9-alignment knife handle, 3-10-locking cylinder button, 3-11-fixed pulley, 3-12-alignment knife support plate, 3-13-second skin positioning pin, 3-14-second mold guide column, 3 -15-lower mold connecting plate, 4-1-first screw, 4-2-second screw, 4-3-third screw, 4-4-fourth screw, 5-1-upper mold fixing plate, 5-2-first skeleton positioning pin, 5-3-movable guide rod, 5-4-first solenoid valve, 5-5-main cylinder, 5-6-second solenoid valve, 5-7-locking fixing plate, 5-8-upper mold locking cylinder, 5-9-first one-way solenoid valve, 5-10-second one-way solenoid valve, 5-11-first mold guide sleeve, 5-12-second skeleton positioning pin, 5-13-first vacuum suction cup, 5-14-first photoelectric switch, 5-15-second mold guide sleeve, 5-16-second photoelectric switch, 5-17-skeleton contoured fetal membrane, 6-1-fifth screw, 6-2-sixth screw, 6-3-seventh screw, 6-4-eighth screw, 6-5-ninth screw. DETAILED DESCRIPTION

[0028] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0030] It should be understood that the term “and / or” used in the specification and appended claims of this application refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0031] In addition, in the description of the present application and the claims, the terms "first", "second", "third", "top", "bottom", "one side", "the other side", "one end", "the other end", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. For example, without departing from the scope of this specification, the first component can be called the second component, and similarly, the second component can be called the first component. The components at the top and the bottom can also be swapped or converted with each other under certain circumstances; the components at one end and the other end can have the same or different performances.

[0032] In the case of using "including", "having" and "comprising" described in this specification, unless used, there may also be another part or other parts, and the terms used may generally be singular but may also represent plural forms. In the description of this specification, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, when constituting a component, although there is no clear description thereof, it can be understood that a certain error area must be included.

[0033] When describing a positional relationship, for example, when the positional sequence is described as "on," "above," "below," and "next," unless words or terms such as "just" or "directly" are used, situations where they are not in contact or in contact may also be included. If a first element is mentioned to be "on" a second element, it does not mean that the first element must be above the second element in the figure. The upper and lower parts of the component will change depending on the change in the angle of observation and orientation. Therefore, in the drawings or in the actual construction, if it is mentioned that the first element is "on" the second element, it may include a situation where the first element is "below" the second element and a situation where the first element is "above" the second element.

[0034] Embodiment 1

[0035] like Figure 1 , Figure 3 to Figure 6As shown, a weakened epidermis alignment device of the present invention comprises a frame 1-1, an epidermis fixing mechanism 1-2 and a skeleton fixing mechanism 1-3 fixed on the frame 1-1, the skeleton fixing mechanism 1-3 and the epidermis fixing mechanism 1-2 are arranged in an upper and lower interval; the epidermis fixing mechanism 1-2 comprises a lower mold fixing plate 3-1, a profiling lower fetal membrane 3-3 with a vacuum hole and a line-aligning knife support plate 3-12, a weakened line profiling line-aligning knife 3-4 is fixed to one end of a sliding guide rail 3-5, the end of the weakened line profiling line-aligning knife 3-4 is a line-aligning knife handle 3-9, and the sliding guide rail 3-5 slides It is dynamically connected to the alignment knife support plate 3-12, the central axis of the fixed pulley 3-11 is fixed on the alignment knife support plate 3-12 at the other end of the sliding guide rail 3-5, one end of the rope on the disc of the fixed pulley 3-11 is connected to the sliding guide rail 3-5, and the other end is connected to the configuration block; the skeleton fixing mechanism 1-3 includes an upper mold fixing plate 5-1 and a skeleton profiling membrane 5-17 fixed to the bottom of the upper mold fixing plate 5-1, the upper mold fixing plate 5-1 is driven to rise or fall by the main cylinder 5-5, and the skeleton profiling membrane 5-17 is provided with a first vacuum suction cup 5-13.

[0036] In some optional embodiments, such as Figure 3 , Figure 4 As shown, the alignment knife support plate 3-12 is located on one side of the contoured lower fetal membrane 3-3, and the upper surface is an inclined surface, and the sliding guide rail 3-5 is obliquely and slidably connected to the upper surface of the alignment knife support plate 3-12, wherein the relatively low end of the sliding guide rail 3-5 extends out of the alignment knife support plate 3-12 and is fixed to the weakened line contouring knife 3-4, and the relatively high end of the sliding guide rail 3-5 is located on the upper surface of the alignment knife support plate 3-12.

[0037] In some optional embodiments, such as Figure 3 As shown, a plurality of evenly distributed second vacuum suction cups 3-2 are provided on the lower mold fixing plate 3-1, and the plurality of second vacuum suction cups 3-2 are located on the outer circle of the contoured lower fetal membrane 3-3 to assist in sucking the epidermis.

[0038] In some optional embodiments, such as Figure 3 , Figure 4 As shown, the locking cylinder 3-6 is fixed on the alignment knife support plate 3-12, the piston rod of the locking cylinder 3-6 is limitedly connected to the sliding guide rail 3-5, and the locking cylinder 3-6 is opened or closed by connecting the locking cylinder button 3-10.

[0039] In some optional embodiments, such as Figure 3 , Figure 4 As shown, a first skin positioning pin 3-7 is provided on the lower mold connecting plate 3-15, and a second skin positioning pin 3-13 is provided on the lower mold fixing plate 3-1.

[0040] In some optional embodiments, such as Figure 3 , Figure 6As shown, one side of the lower mold fixing plate 3-1 is connected to the lower mold connecting plate 3-15, and the lower mold connecting plate 3-15 is provided with a first mold guide pin 3-8, and the lower mold fixing plate 3-1 is provided with a second mold guide pin 3-14, and the first mold guide pin 3-8 and the second mold guide pin 3-14 are respectively located on the different sides of the contoured lower fetal membrane 3-3; the upper mold fixing plate 5-1 is provided with a first mold guide sleeve 5-11 and a second mold guide sleeve 5-15 for respectively cooperating with the first mold guide pin 3-8 and the second mold guide pin 3-14; the skeleton fixing mechanism 1-3 and the surface fixing mechanism 1-2 are molded and positioned through the first mold guide pin 3-8, the second mold guide pin 3-14 and the first mold guide sleeve 5-11 and the second mold guide sleeve 5-15.

[0041] In some optional embodiments, such as Figure 5 As shown, the main cylinder 5-5 is fixed on the frame 1-1, and movable guide rods 5-3 are arranged on both sides of the main cylinder 5-5 for guidance. The piston rod of the main cylinder 5-5 is fixedly connected to the upper mold fixing plate 5-1, and one end of the movable guide rod 5-3 is fixed on the upper mold fixing plate 5-1.

[0042] In some optional embodiments, such as Figure 5 As shown, the skeleton-shaped fetal membrane 5-17 is provided with skeleton positioning pins, and the skeleton positioning pins include at least one first skeleton positioning pin 5-2 and one second skeleton positioning pin 5-12 distributed at different positions around the skeleton-shaped fetal membrane 5-17.

[0043] In some optional embodiments, such as Figure 5 As shown, a locking plate 5-7 is provided on the upper mold fixing plate 5-1, and an upper mold locking cylinder 5-8 is provided on the frame 1-1. The piston rod of the upper mold locking cylinder 5-8 cooperates with the locking plate 5-7 to limit the position for unlocking or locking the upper mold fixing plate 5-1.

[0044] In some optional embodiments, such as Figure 5 As shown, the top surface of the lower mold fixing plate 3-1 is provided with a first one-way solenoid valve 5-9 and a second one-way solenoid valve 5-10 for controlling other electrical components. In this embodiment, the skeleton-shaped fetal membrane 5-17 includes two pieces according to design requirements. The bottom surfaces of the two skeleton-shaped fetal membranes 5-17 are respectively provided with a first photoelectric switch 5-14 and a first photoelectric switch 5-16 for detecting whether there is a product (skeleton) thereon.

[0045] In some optional embodiments, such as Figure 2As shown, the frame 1-1 includes a main frame 2-1, a heating gun 2-2, a start button 2-3, an emergency stop button 2-4, an operation screen 2-5, a safety grating 2-6, a vacuum pump 2-7, a forklift slot 2-8, an electric cabinet 2-9, a counterweight wheel 2-10, and a vacuum button 2-11. The vacuum pump 2-7 is connected to the vacuum hole of the contoured lower fetal membrane 3-3, the second vacuum suction cup 3-2, and the first vacuum suction cup 5-13 through an air path, and the switch is controlled by the vacuum button 2-11. Among them, the main frame 2-1 of the frame 1-1 is provided with a heating gun 2-2 for heating the back of the skin and the front of the frame. The frame 1-1 is provided with a first solenoid valve 5-4 and a second solenoid valve 5-6 for controlling the main cylinder 5-5.

[0046] like Figure 7 As shown, the frame 1-1 and the upper mold fixing plate 5-1 are fastened by four screws (4-1, 4-2, 4-3, 4-4).

[0047] like Figure 8 As shown, the frame 1-1 is fastened to the lower mold fixing plate 3-1 and the lower mold connecting plate 3-15 by 6 screws (6-1, 6-2, 6-3, 6-4, 6-5) at the front and rear.

[0048] Embodiment 2

[0049] A method for aligning a line of a weakened epidermis alignment device, comprising the following steps: laying the weakened epidermis with its back side facing upward on a contoured lower fetal membrane 3-3 with a vacuum hole, positioning the epidermis initially by passing the upper hanging hole of the epidermis through a first epidermis positioning pin 3-7 and a second epidermis positioning pin 3-13, unlocking the locking cylinder 3-6 by pressing a locking cylinder button 3-10, pulling the counterweight block of a fixed pulley 3-11, and moving a weakened line contour alignment knife 3-4 at the rear end position through a slide The movable guide rail 3-5 is pulled to the weakened line area of ​​the epidermis, and then the locking cylinder 3-6 is locked, and the alignment knife handle 3-9 is pressed to move the epidermis, so that the weakened line profiling alignment knife 3-4 coincides with the weakened line on the back of the epidermis, and the vacuum button 2-11 is started. The profiling lower fetal membrane 3-3 with vacuum holes and the second vacuum suction cup 3-2 fix the epidermis, and the locking cylinder button 3-10 is pressed to unlock the locking cylinder 3-6, and at the same time, the weakened line profiling alignment knife 3-4 returns to the initial position;

[0050] Place the skeleton with the front side facing downward on the skeleton contoured fetal membrane 5-17, position it by the first skeleton positioning pin 5-2 and the second skeleton positioning pin 5-12, and fix it by the first vacuum suction cup 5-13. Manually heat the skin and skeleton in the airbag area, that is, activate the glue on the back of the skin and the front of the skeleton by the heating drying gun 2-2 on the left side of the frame, press the start button 2-3, and the upper mold fixing plate 5-1 is driven down by the main cylinder 5-5 and passes through the first mold guide column 3-8 of the lower mold, the second mold guide column 3-14 and the first mold guide sleeve 5-11 of the upper mold, and the second mold guide sleeve 5-15 to mold and hold the skeleton fixing mechanism 1-3 and the skin fixing mechanism 1-2, so as to achieve the coincidence of the weakened hole of the skeleton and the weakened line of the skin, align the suture of the airbag area, and press the front of the product at the same time. After the pressure holding is completed, the upper mold fixing plate 5-1 is driven up by the main cylinder 5-5, the skin and skeleton are taken out, and the above operation is repeated.

[0051] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field.

Claims

1. A weakened epidermis alignment device, comprising a frame (1-1), characterized in that: The machine also includes a skin fixing mechanism (1-2) and a frame fixing mechanism (1-3) fixed on the frame (1-1), wherein the frame fixing mechanism (1-3) and the skin fixing mechanism (1-2) are arranged in an upper and lower interval; the skin fixing mechanism (1-2) includes a lower mold fixing plate (3-1), a contoured lower fetal membrane (3-3) with vacuum holes, and a line-aligning knife support plate (3-12); a weakened line contouring knife (3-4) is fixed to one end of a sliding guide rail (3-5), and the sliding guide rail (3-5) is slidably connected to the line-aligning knife support plate (3-12); a fixed pulley (3-1 1) The central axis is fixed on the alignment knife support plate (3-12) at the other end of the sliding guide rail (3-5), one end of the rope on the disc of the fixed pulley (3-11) is connected to the sliding guide rail (3-5), and the other end is connected to the configuration block; the skeleton fixing mechanism (1-3) includes an upper mold fixing plate (5-1) and a skeleton profiling membrane (5-17) fixed to the bottom of the upper mold fixing plate (5-1), the upper mold fixing plate (5-1) is driven to rise or fall by the main cylinder (5-5), and the skeleton profiling membrane (5-17) is provided with a first vacuum suction cup (5-13).

2. A weakened epidermis alignment device according to claim 1, characterized in that: The alignment knife support plate (3-12) is located on one side of the contoured lower fetal membrane (3-3), and the upper surface is an inclined surface, and the sliding guide rail (3-5) is obliquely slidably connected to the upper surface of the alignment knife support plate (3-12), wherein the relatively low end of the sliding guide rail (3-5) extends out of the alignment knife support plate (3-12) and is fixed to the weakened line contouring knife (3-4), and the relatively high end of the sliding guide rail (3-5) is located on the upper surface of the alignment knife support plate (3-12).

3. A weakened epidermis alignment device according to claim 1, characterized in that: The lower mold fixing plate (3-1) is provided with a plurality of evenly distributed second vacuum suction cups (3-2), and the plurality of second vacuum suction cups (3-2) are located on the outer ring of the contoured lower fetal membrane (3-3) to assist in sucking the epidermis.

4. A weakened epidermis alignment device according to claim 1, characterized in that: The locking cylinder (3-6) is fixed on the alignment knife support plate (3-12), the piston rod of the locking cylinder (3-6) is limitedly connected to the sliding guide rail (3-5), and the locking cylinder (3-6) is opened or closed by connecting the locking cylinder button (3-10).

5. A weakened epidermis alignment device according to claim 1, characterized in that: One side of the lower mold fixing plate (3-1) is connected to the lower mold connecting plate (3-15), and the lower mold connecting plate (3-15) is provided with a first mold guide pin (3-8), and the lower mold fixing plate (3-1) is provided with a second mold guide pin (3-14), and the first mold guide pin (3-8) and the second mold guide pin (3-14) are respectively located on the different sides of the contoured lower fetal membrane (3-3); the upper mold fixing plate (5-1) is provided with a first mold guide sleeve (5-11) and a second mold guide sleeve (5-15) for respectively cooperating with the first mold guide pin (3-8) and the second mold guide pin (3-14); the skeleton fixing mechanism (1-3) and the surface fixing mechanism (1-2) perform mold positioning through the first mold guide pin (3-8), the second mold guide pin (3-14) and the first mold guide sleeve (5-11) and the second mold guide sleeve (5-15).

6. A weakened epidermis alignment device according to claim 1, characterized in that: The main cylinder (5-5) is fixed on the frame (1-1), movable guide rods (5-3) are arranged on both sides of the main cylinder (5-5) for guidance, the piston rod of the main cylinder (5-5) is fixedly connected to the upper mold fixing plate (5-1), and one end of the movable guide rod (5-3) is fixed on the upper mold fixing plate (5-1).

7. A weakened epidermis alignment device according to claim 5, characterized in that: A first skin positioning pin (3-7) is provided on the lower mold connecting plate (3-15), and a second skin positioning pin (3-13) is provided on the lower mold fixing plate (3-1).

8. A weakened epidermis alignment device according to claim 1, characterized in that: The skeleton-shaped fetal membrane (5-17) is provided with skeleton positioning pins, and the skeleton positioning pins include at least one first skeleton positioning pin (5-2) and a second skeleton positioning pin (5-12) distributed at different positions around the skeleton-shaped fetal membrane (5-17).

9. A weakened epidermis alignment device according to claim 1, characterized in that: A locking fixing plate (5-7) is provided on the upper die fixing plate (5-1), an upper die locking cylinder (5-8) is provided on the frame (1-1), and a piston rod of the upper die locking cylinder (5-8) cooperates with the locking fixing plate (5-7) to limit the position and is used to unlock or lock the upper die fixing plate (5-1).

10. A method for locating a line of a weakened epidermis locating device according to any one of claims 1 to 9, characterized in that: include: The weakened epidermis is laid flat on the contoured lower fetal membrane (3-3) with vacuum holes with the back side facing upwards to perform initial positioning of the epidermis, the counterweight block of the fixed pulley (3-11) is pulled, and the weakened line contouring knife (3-4) at the rear end position is pulled to the weakened line area of ​​the epidermis through the sliding guide rail (3-5), the epidermis is moved, the weakened line contouring knife (3-4) is overlapped with the weakened line on the back side of the epidermis, the contoured lower fetal membrane (3-3) with vacuum holes fixes the epidermis, and the weakened line contouring knife (3-4) is returned to the initial position; The front side of the skeleton is placed face down on the skeleton-shaped fetal membrane (5-17) for fixation, and the upper mold fixing plate (5-1) is driven down by the main cylinder (5-5), and the skeleton fixing mechanism (1-3) and the skin fixing mechanism (1-2) are molded and pressure maintained, so that the positions of the skeleton weakening holes and the skin weakening lines are aligned, the sutures in the airbag area are aligned, and the front side of the product is pressed together. After the pressure maintenance is completed, the upper mold fixing plate (5-1) is driven up by the main cylinder (5-5), the skin and skeleton are taken out, and the above operation is repeated.

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