129 results about "Vacuum forming" patented technology

The invention discloses a plastic uptake forming device of an isolation plate for a CCS assembly, relates to the technical field of plastic uptake forming equipment, and aims to solve the technical problem that composite filling of particles and flakes is difficult to realize by traditional equipment, and the plastic uptake forming device comprises an automatic plastic uptake mold, a conveying mechanism, a feeding mechanism, a discharging mechanism and a hot pressing assembly. According to the device, through sliding fit of kidney-shaped holes and stagnation holes which are specifically distributed in the moving plate and the protruding blocks of the driving rods, gathering and unfolding of the multiple discharging frames are achieved, and therefore the two working modes of wide-opening uniform particle filling and narrow-opening fixed-point sheet-shaped object filling are flexibly switched on the same device; furthermore, by means of a linkage guide mechanism composed of a supporting inclined plate, a flow gathering plate and a guide plate which are hinged, automatic induction can be achieved and a discharging channel can be expanded during filling of the sheet-shaped objects, the sheet-shaped objects are effectively guided to be stably laid, and blocking and posture inclination are prevented; and a reliable solution is provided for large-scale and high-quality production of the high-performance composite CCS isolation plate.

A vacuum formed, tamper resistant container resists deformation of the sides thereof that might otherwise permit access to contents of the container without removal of the lid. Downward protruding lid features reinforce the wall of the container base, and buttress features included in the rim of the base extend from a base flange diagonally downward and inward to the inner rim of a recessed shelf, thereby resisting downward rotation of the wall beneath the lid protruding features. In embodiments, attachment tabs surrounded by frangible boundaries are incorporated in the lid and attached to the base by living hinges, such that removal of the lid requires breaking of the frangible boundaries and detachment of the lid from the attachment tabs. Pucker elements associated with the attachment tabs can cause the attachment tabs to pivot away from the lid when the attachment tabs are detached from the lid.

The utility model discloses a plastic sheet composite material vacuum forming mold, and belongs to the field of plastic forming molds. The utility model relates to a plastic sheet composite material vacuum plastic uptake forming mould, which comprises a rack, a positioning frame, a plastic uptake forming mould, a plastic uptake forming mould body, a plastic uptake forming mould body, a plastic uptake forming mould body, a plastic uptake forming mould body, a plastic uptake forming mould body, a plastic uptake forming mould body, a plastic uptake forming mould body, a plastic uptake forming mould body and a plastic uptake forming mould body, the positioning frame is driven by the first adjusting part to move downwards, a template can be coated with a sheet, air in the air supply part can be extruded and discharged through the air blowing nozzle, dust particles and plastic residues on the surface of a cavity of the template are cleaned, meanwhile, in the cleaning process, the second adjusting part is used for adjusting the angle of the air blowing nozzle, and the air blowing nozzle is prevented from being blocked. And after the plastic product is formed, the first adjusting piece moves upwards to relieve abutting against the positioning frame, and automatic demolding of the plastic product is achieved.

The utility model relates to the technical field of plastic vacuum forming machines, and discloses a material collecting device for a plastic vacuum forming machine, which comprises a material collecting box, one side of the upper end face of the material collecting box is fixedly connected with a material conveying mechanism, a processing mechanism is arranged in the material collecting box, the material conveying mechanism comprises a conveying frame, the inner wall of the conveying frame is provided with a conveying belt, and the conveying belt is connected with the processing mechanism. A deviation rectifying frame is fixedly connected to the upper end face of the conveying frame, fixing columns are fixedly connected to the lower portions of the inner walls of the front end and the rear end of the deviation rectifying frame correspondingly, movable grooves are formed in the opposite sides of the two fixing columns correspondingly, and movable rods are movably arranged in the two movable grooves correspondingly. According to the waste material processing device, the position of the waste material can be corrected through the arranged correcting mechanism, so that the purpose of pretreatment can be achieved, the problem that subsequent processing and using are affected due to the fact that the waste material is stressed and deviated in the conveying process is solved, the waste material can be crushed through the arranged processing mechanism, and the waste material processing efficiency is improved. Therefore, the advantage of better recycling is achieved.

The utility model discloses a demolding device of a thick sheet plastic vacuum forming machine, and relates to the technical field of thick sheet plastic vacuum forming machines. The plastic uptake mold comprises a bottom frame, a plastic uptake mold is fixedly arranged on the upper surface of the bottom frame, a plurality of opening mechanisms are arranged on the outer side of the plastic uptake mold, an ejection mechanism is arranged below the opening mechanisms, one side of the ejection mechanism is fixedly connected with one side of the bottom frame, the ejection mechanism comprises an ejection frame, one side of the ejection frame is fixedly connected with the bottom frame, and the other side of the ejection frame is fixedly connected with the plastic uptake mold. By means of the ejection mechanism, stable ejection of formed products in the plastic suction mold is achieved, the height of the ejection plate can be controlled by rotating the rotary cylinder, the demolding requirements of products with different thicknesses are further met, the demolding efficiency is improved, and the demolding cost is reduced. And due to the design of anti-skid lines, the operation stability is enhanced, the overall structure is compact, operation is easy and convenient, and the demolding efficiency and safety of the thick sheet plastic vacuum forming machine are effectively improved.

The utility model discloses a thermosetting material vacuumizing forming die which comprises an upper die and a lower die, a die core is arranged in the middle of the lower die, a first matching portion matched with the upper portion of the die core in a sealing mode is arranged at the bottom of the upper die, and a second matching portion matched with the outer wall of the first matching portion is arranged on the lower die. The bottom of the mold core and the bottom of the lower mold are provided with bases which are connected in a sealed mode, the upper mold, the lower mold, the mold core and the bases are mutually enclosed to form a cavity, and the contact faces of the first matching part and the second matching part form a parting face connected with the side wall of the cavity. And the parting surface comprises a first vertical parting surface which is communicated with the highest point of the cavity and is vertically arranged. The utility model has the characteristics that the height difference between the parting surface and the cavity can be increased, materials are prevented from permeating into the parting surface to block a gas channel during vacuum pumping, and normal vacuum pumping is realized, so that the materials are fully filled, air holes are avoided, and the like.

This invention provides a cigarette sealing unit and its cavity forming device and method. The cavity forming device includes a driving mechanism, a pushing mechanism, an extrusion mechanism, and a pressure receiving mechanism. A film to be formed is disposed between the extrusion mechanism and the pressure receiving mechanism. The driving mechanism drives the pushing mechanism to move downward in a vertical direction, and the extrusion motion moves synchronously towards the pressure receiving mechanism. The film to be formed forms a cavity after being acted upon by the extrusion mechanism and the pressure receiving mechanism simultaneously. The cavity forming device has a non-working state, a pre-pressing state, and a forming state. The cavity forming device, according to the cavity forming method, combines the three states with three processes: pre-pressing, vacuum forming, and blow molding to complete the preparation of the cavity in the cigarette sealing unit. The cavity forming device of this patent achieves the organic integration of the three forming actions of pre-pressing, vacuum forming, and blow molding of the film to be formed through the precise cooperation of the extrusion mechanism and the pressure receiving mechanism, and the three actions occur synergistically within a continuous working cycle.

A cup cover cutting mold for cutting a cup cover. The cup cover comprises a cover portion and an outer ring portion. The outer ring portion transversely protrudes from the cover portion. The cup cover cutting mold comprises an alignment unit and a breaking unit. The alignment unit comprises at least one through hole. The at least one through hole faces one side of the outer ring portion. The breaking unit comprises at least one cutting edge. The at least one cutting edge is located on the other side of the outer ring portion. The at least one cutting edge movably penetrates into the at least one through hole. The at least one cutting edge is used for breaking a continuous structure of the outer ring portion, so as to form at least one cutting mark on the outer ring portion. A cup cover can be formed by means of vacuum forming, and then a cup cover cutting mold is used to break a continuous structure of the cup cover so as to form at least one cutting mark. The at least one cutting mark enables part of the cup cover to be relatively bent, so that in actual use, a bent portion of the cup cover can be bent and embedded into an opening edge of a cup body to achieve the purpose of tight bonding.

The invention relates to the technical field of refrigerator inner container blister, and discloses a blister device for preparing a refrigerator inner container, the blister device comprises a bottom plate, the top of the bottom plate is provided with a heating device, the top of the bottom plate is fixedly connected with a supporting plate, the upper surface of the supporting plate is fixedly connected with a sliding groove frame, and the top of the bottom plate is provided with a blister part; the plastic uptake part comprises a plastic uptake frame, the bottom of the plastic uptake frame is fixedly connected with the top of the bottom plate, the inner wall of the plastic uptake frame is slidably connected with a sealing plate, and the top of the sealing plate is fixedly connected with a mold. Suction force generated by the vacuum pump enters the interior of the plastic plate through the mold, air in the plastic plate is rapidly exhausted, and at the moment, the plastic plate can be attached to the surface of the mold under the action of the vacuum pump, so that plastic suction operation of the refrigerator inner container is completed; and the plastic uptake frame can be sealed by the sealing plate, so that the suction force of the vacuum pump can stably work in the plastic plate, and the plastic uptake quality of the refrigerator liner is further improved.

The invention relates to a method for manufacturing a cylindrical, thermoplastic composite part, the method comprising: - positioning a cylinder (3) made of thermoplastic pre-impregnated fibrous material in a vacuum moulding tooling (10), at least one vacuum bag (12) being situated facing the cylinder, and - consolidating the cylinder in the vacuum moulding tooling, during which a vacuum is drawn so that the at least one bag applies a shaping pressure to the cylinder, the cylinder being subjected to a heat treatment comprising (i) sweeping (B) its circumference with a local heating, of extent (E24) limited to a sector of the cylinder, in a relative movement in relation to the cylinder about its axis, and (ii) cooling, after this local heating, so as to fix the shape of the cylinder. Fig. 1

A method for manufacturing a vehicle crash pad includes heating a skin layer using a heater, attaching a cushion layer to the skin layer, placing a lower mold and an upper mold relative to a fabric including the skin layer and the cushion layer, forming a molded member on the lower mold, vacuum molding. The upper mold is lowered to perform the vacuum molding. The method further includes a laser processing of the fabric and molded member using a processing system, where a sensor senses the fabric and molded member, and based on sensed data, a through-hole is defined by adjusting the intensity of a laser's light irradiated to the fabric and molded member.

The present application relates to the technical field of composite material forming, in particular to a kind of off-site gas flow guide method of composite material vacuum bag forming.It includes the following steps: after impregnating off-site flow guide agent using non-woven grid cloth, drying, preparing off-site gas flow guide net;Off-site gas flow guide net is laid in the interlayer interval of prepreg, and is cured with prepreg in the curing process.The purpose of the off-site gas flow guide method of composite material vacuum bag forming is to solve the problem of internal quality defects such as porosity that easily occurs in the vacuum forming and curing process when forming large thickness composite material using large tow high weight prepreg, reduce material process cost by reducing the number of laid layers, effectively improve the production efficiency of existing large thickness composite material products.

The composite of the present invention is a composite of a resin foam layer and a non-foam layer laminated on at least one surface of the resin foam layer, and the non-foam layer is provided with an inorganic particle-containing layer containing at least a resin and inorganic particles. When the cross section of the composite is measured by SEM-EDX, the amount of the inorganic element in the non-foam layer is 0.01 at% or more, and the composite has an MD tensile elongation at 160 DEG C and / or a TD tensile elongation at 160 DEG C of 80% or more. According to the present invention, it is possible to provide a composite which is provided with a resin foam layer and has good vacuum moldability.

The application discloses a wooden mold for vacuum forming and belongs to the technical field of wooden molds, which comprises a vacuum base, a placing plate is fixedly installed on the inner wall of the vacuum base at equal distances, and a forming mechanism is arranged on the inner wall of the vacuum base. In the application, the forming insert is provided, with the increase of the use time of the forming insert, the positioning pin is moved downwards to the vacuum base through the shift plate, after the one end of the positioning pin is separated from the positioning groove, the fixed insertion plate is pulled out from the vacuum base, at this time, the forming insert loses the fixation of the fixed insertion plate, then the forming insert to be replaced is replaced, the modularization of the wooden mold is realized, the detachable forming insert design is adopted, the forming punch does not need to be integrally replaced, only the corresponding forming insert needs to be replaced according to the special-shaped structure of the target forming piece, the production of forming pieces with different specifications and different special-shaped structures can be realized, the period of mold modification and replacement is greatly shortened, and the mold adaptation cost is reduced.

The vacuum molding method and molding equipment for a film-like object including a protruding structure include the following steps: fixing a planar film including a protruding structure on a sealing device; fixing a product model on a vacuum exhaust device; clamping a conveying device on the protruding structure; heating the planar film using a heating device to soften the planar film; controlling the conveying device to move the protruding structure to a predetermined molding position; bringing the sealing device into close contact with the vacuum exhaust device; the vacuum exhaust device extracting air between the planar film and the product model to generate negative pressure, completely attaching the planar film to the surface of the product model to mold a finished film including a protruding structure; and removing the finished film including the protruding structure after cooling.

This invention discloses an online hot-pressing process for eliminating crystal points on the surface of electronic carrier tapes, relating to the field of electronic carrier tape manufacturing. The method employs an extruder and a vacuum forming mold. The extruder melts and mixes plastic raw materials, then extrudes them through a die to form a continuous sheet. The vacuum forming mold shapes the sheet into an electronic carrier tape with a receiving cavity. The method further includes the following step: setting a hot-pressing roller device between the die outlet of the extruder and the feed end of the vacuum forming mold. This online hot-pressing process for eliminating crystal points on the surface of electronic carrier tapes, by adding a hot-pressing roller device between the die outlet of the extruder and the feed end of the vacuum forming mold, performs online hot-pressing finishing on the freshly extruded molten sheet. Controllable temperature and pressure are used to physically flatten the protruding crystal points on the sheet surface, while simultaneously making the sheet thickness more uniform and significantly improving the surface finish.

The utility model discloses surface fine texture impressing equipment for vacuum forming soles, and relates to the technical field of shoemaking, the surface fine texture impressing equipment comprises a supporting table, the top of one end of the supporting table is fixedly connected with a placing table through an opening, the top of the placing table is fixedly connected with a hydraulic cylinder, one end of the hydraulic cylinder penetrates through the top of the placing table, and the other end of the hydraulic cylinder penetrates through the opening. And an XY horizontal moving device is fixedly connected. According to the supporting table provided by the utility model, the shoe sole is cooled to avoid deformation on the basis of texture embossing after the shoe sole is positioned and fixed, so that the problem that the shoe sole is softened and even melted due to overheating during processing by the existing surface fine texture embossing equipment for the vacuum forming shoe sole is solved; the problems that the shape of a shoe sole is changed, the product quality is seriously influenced, positioning and fixing are lacked in the machining process, laser beam impact force and equipment vibration cause displacement and deviation of the shoe sole, and the grains on the two sides are asymmetric are solved.

[Problem] To provide a roof box capable of suppressing entrainment of traveling wind and preventing falling of components while facilitating opening / closing of a cover. [Solution] A roof box 10 is opened and closed as one side edge of a cover 14 is lifted up from a body 12. The cover 14 is formed by resin molding using a metal mold, including vacuum forming, and side edges 16a and 16b each have an integrally formed opening / closing auxiliary means 18, which is constituted by at least one of a concave portion and a convex portion formed in an undercut shape. The opening / closing auxiliary means 18 is a handle that is constituted by at least one of the concave portion and the convex portion formed in the longitudinal direction of the side edges 16a and 16b.

The present invention provides a vacuum forming die that allows for the incorporation of a surface layer even if the surface layer does not possess sufficient stretchability, a method for manufacturing a vacuum-formed product using this vacuum forming die, and a vacuum-formed product. [Solution] The vacuum-formed product 100 according to the present invention comprises a base material 10 having a surface adhesive upright portion 12 located inward from the base material end 11, and a surface coated surface 20 of the base material 10, characterized in that at least a portion of the surface 20 of the base material end 11 of the base material 10 is adhered to the surface adhesive upright portion 12.

The invention relates to the technical field of vacuum forming, in particular to a vacuum forming production line skin tensioning mechanism which is used for connecting a heating section and a forming section of a conveying frame and comprises a shell, a front guide chain wheel, a rear guide chain wheel, a first tensioning chain wheel and a second tensioning chain wheel, and the front guide chain wheel, the rear guide chain wheel, the first tensioning chain wheel and the second tensioning chain wheel are installed on the inner side of the shell. A rear guide spike chain is wound on the rear guide chain wheel, a tensioning spike chain is wound on the first tensioning chain wheel and the second tensioning chain wheel, the second tensioning chain wheel is arranged on the outer side of the first tensioning chain wheel, and the tensioning spike chain deflects towards the outer side of the shell from the first tensioning chain wheel to the second tensioning chain wheel. The vacuum forming skin tensioning device is simple in overall structure, can rapidly and efficiently stretch and tension vacuum forming skin, is high in automation degree, does not affect continuous conveying of skin raw materials in the tensioning process, and is beneficial for guaranteeing continuous production and improving the production efficiency.

This invention relates to the field of vacuum forming machine technology, and proposes a negative pressure integrated vacuum forming machine and method. The machine includes a support platform, a mounting frame fixedly connected to the top of the support platform, a material feeding frame on the inner side of the mounting frame, a lifting mechanism on the inner side of the mounting frame, an infrared heater fixedly connected to the top of the inner side of the mounting frame, and a vacuum forming mechanism below the material feeding frame. The vacuum forming mechanism includes a mold, with an air cavity at the bottom of the inner side of the mold. A three-way pipe communicating with the interior of the air cavity is fixedly connected to the bottom of the mold. One end of the three-way pipe is fixedly connected to an air outlet pipe, and the other end is fixedly connected to an air inlet pipe. A dual-axis motor is fixedly installed inside the support platform. An air extraction component is provided at the outlet end of the air outlet pipe, and an air inlet component is provided at the inlet end of the air inlet pipe. This invention effectively solves the technical defects of traditional vacuum forming machines through uniform negative pressure adsorption in the air cavity, rapid cooling in the annular cavity, non-destructive positive pressure demolding, and integrated power transmission.

To provide a preform that can be attached to a storage rack or the like made of long metal structural materials even when the distance between two parallel metal structural materials is narrow. [Solution] The preform 1 is formed by injection molding of a thermoplastic resin and has a roughly rectangular panel shape in a plan view, and is equipped with a molding target portion 2 in which a receiving portion with a three-dimensional curved surface suitable for supporting a product is formed by vacuum molding, and first connecting portions 3 provided at locations corresponding to two parallel sides that make up the rectangle. The pair of first connecting portions 3, 3 are structured so that engaging claws 4, each provided near the vertices of the rectangle, are perpendicular to the molding target portion 2 and protrude toward the back surface 2a, and are connected to each other via a connecting plate 5.

The invention relates to a vacuum forming device suitable for a fiber reinforced composite material with a special-shaped structure, which comprises a metal mold (2), a vacuum suction nozzle (6) and a plurality of fastening bolts (4), and is characterized by further comprising a silicon rubber soft mold device (3) when a composite material product (1) is a non-tubular rotary body; the metal mold (2) comprises a mold solid body (2-1) and a mold outer edge (2-2), a part of the outer surface of the mold solid body (2-1) is the same as the inner surface of the composite material product (1) in shape, the mold outer edge (2-2) is arranged at the edge of the mold solid body (2-1), and the mold solid body (2-1) and the mold outer edge (2-2) are of an integrated structure; reutilization of a fixed product can be achieved, the manufacturing cost of vacuum pressurization and forming of a composite material is greatly reduced, and the phenomenon that a sealing rubber strip is aged and leaks air is avoided.

The utility model discloses a high-toughness thin-wall mooncake blister cork base, which belongs to the technical field of blister cork bases and comprises a base and a cover, a cork base is integrally formed on the base, a placing groove is arranged on the cork base, a baffle is arranged on the cork base, a first groove is arranged on one side of the placing groove, a first anti-slip strip is arranged in the placing groove, and a second anti-slip strip is arranged in the second groove. A placing groove is formed in the bottom of the base, a placing plate is arranged in the placing groove, a through hole is formed in the placing plate, an empty groove is formed between the placing plate and the bottom of the placing groove, and a second anti-slip strip is arranged on the base. Mooncakes in the placing groove can be conveniently taken out through the first groove, the mooncakes can be limited through the first anti-slip strip, friction is increased, and the mooncakes can be conveniently taken out through the second anti-slip strip; the four sets of containing grooves are separated through the baffles, mooncakes can be effectively prevented from being collided or extruded to deform, drying agents can be placed in empty grooves between the containing plates and the containing grooves, the mooncakes are prevented from being affected with damp, the storage time is prolonged, and the practicability of the mooncake storage device is enhanced.

An insert for use in vacuum forming that is locked in place with the vacuum forming material. More specifically, the insert includes one or more undercuts wherein the sheet that is vacuum formed around the undercut is locked without the need for additional manufacturing components and / or procedures. The process is particularly suitable for automotive applications.

The utility model discloses an automatic oil injection device for plastic uptake, which comprises two support frames arranged on a plastic uptake machine, a first shaft is erected between the two support frames, a plurality of limiting parts uniformly distributed along the axis of the first shaft are detachably connected onto the first shaft, a push rod component stretching and retracting along a first direction is arranged on the first shaft, and the push rod component is connected with a second shaft. The push rod assembly is connected with a plurality of guide columns which are distributed in the first direction and penetrate through the first shaft in a matched mode, the end of each guide column is connected with a supporting column, one end of each supporting column penetrates through a limiting opening in the limiting piece, each supporting column is provided with a nozzle, and each nozzle is connected with an oil supply assembly arranged on the plastic vacuum forming machine in a matched mode through a guide pipe. One end part of the first shaft is matched and connected with a driving assembly for driving the first shaft to rotate; the oil injection device is arranged on the plastic vacuum forming machine, the angle and the distance of the nozzle relative to a sheet can be adjusted, the oil injection range can be adjusted, oil can be supplied to the sheet to be subjected to plastic vacuum forming processing on the plastic vacuum forming machine, and it is guaranteed that the surface can be kept uniform under processing of the plastic vacuum forming machine.

A vacuum forming method for a membrane-like object having a protruding structure and its forming apparatus, the forming method includes the following steps: fixing a flat membrane having a protruding structure on a sealing device; fixing a product model on a vacuum pumping device; clamping a transfer device on the protruding structure; utilizing a heating device to heat the flat membrane for softening the flat membrane; controlling the transfer device to move the protruding structure to a predetermined forming position; fitting the sealing device tightly to the vacuum pumping device; pumping out air between the flat membrane and the product model by the vacuum pumping device to generate negative pressure, so that the flat membrane is completely attached to a surface of the product model to form a final membrane having the protruding structure; after cooling, the final membrane having the protruding structure is taken out of the cooling room.

A method for manufacturing a vehicle impact cushion (10) of an airbag, comprising heating a skin layer (210) by means of a heater (110) (S110), attaching a cushion layer (220) to the skin layer (210) (S120), placing a lower forming tool (122) and an upper forming tool (121) relative to a material (200) comprising the skin layer (210) and the cushion layer (220) (S130), forming a shape element (300) on the lower forming tool (122) (S140), performing vacuum forming by moving the upper forming tool (121) towards the lower forming tool (122) (S150), and performing laser processing on the material (200) and the shape element (300) (S160), wherein the laser processing involves shining laser light onto the material (200) and the shape element (300). Detecting the laser light passing through a through-hole (h) by a sensor (131), and adjusting the intensity of the laser light,which is blasted onto the material (200) and the mold element (300).

The utility model discloses an acrylic plate vacuum forming machine, and relates to the technical field of acrylic plate forming. The device comprises a bottom plate, a mounting frame, a rotating motor, a stroke cover, a mounting frame, a mold and a stroke plate, the mounting frame is arranged at the upper end of the bottom plate, a first hydraulic rod is arranged in the mounting frame, a supporting plate is arranged at the upper end of the bottom plate, the mounting frame is arranged in the supporting plate, and a third hydraulic rod is arranged in the upper end of the mounting frame. A stroke plate is arranged in the mounting frame, a mold is arranged at the upper end of the stroke plate, a negative pressure pump is arranged on the inner wall of the upper end of the mold, air holes are formed in the mold, and rotating shafts are arranged at the two ends of the mounting frame. According to the auxiliary forming acrylic plate discharging structure, the problems that scalding is possibly caused by too early material taking contact, and material taking is strenuous due to the fact that vacuum forming and mold adhesion are firm are solved.

The application discloses a resin matrix vertical forming equipment with movable slider controlled cavity and a method thereof, and particularly relates to the technical field of resin matrix forming equipment, and comprises an upper die and a lower die, the lower die is arranged on a lower die base, the upper end of the lower die base is provided with a die closing locking mechanism, the upper end of the upper die is provided with a filling pipe joint, a filling pipe is connected to the filling pipe joint, the end of the filling pipe far from the filling pipe joint is connected with the die closing locking mechanism, and the upper end of the lower die base is provided with a movable slider group, in the application, the reasonable control of gravity is realized through the movement control of the movable slider group, the resin matrix can be relatively uniformly filled downwards when the side wall is formed, the product quality is controlled, and the operation technical difficulty is reduced compared with the traditional vacuum forming mode.