CN-121973429-A - Continuous cup cylinder plastic suction mold and forming guide equipment

CN121973429ACN 121973429 ACN121973429 ACN 121973429ACN-121973429-A

Abstract

The invention provides a continuous cup plastic suction mold and molding guide equipment, which belong to the technical field of plastic molding, wherein the continuous cup plastic suction mold comprises a male mold unit, a heat insulation unit and a female mold unit, the male mold unit comprises an upper molding seat and a temperature control assembly, a temperature control cavity is formed in the upper molding seat, the temperature control assembly is arranged in the temperature control cavity, the temperature control assembly comprises a plurality of heating plates arranged around the central axis of the temperature control cavity and heat conducting structures corresponding to the heating plates one by one, the heat conducting structures are abutted between the heating plates and the inner wall of the temperature control cavity, the heat insulation unit comprises a heat insulation bag arranged in the temperature control cavity, a material box communicated with the heat insulation bag and a transfer piece arranged between the heat insulation bag and the material box, the transfer piece is used for transferring contents in the heat insulation bag and the material box, the female mold unit comprises a lower molding seat arranged opposite to the upper molding seat, and the lower molding seat is provided with a molding cavity matched with the upper molding seat. According to the invention, differential regulation and control of the sheet temperature are realized according to local requirements of the molding shape.

Inventors

QI QUANLI
YANG WANJUN
ZHANG CHEN

Assignees

天津中腾华盛科技有限公司

Dates

Publication Date: 20260505
Application Date: 20260407

Claims (10)

1. A continuous cup suction mold, comprising: The male die unit comprises an upper forming seat and a temperature control assembly, a temperature control cavity is formed in the upper forming seat, the temperature control assembly is arranged in the temperature control cavity, the temperature control assembly comprises a plurality of heating plates arranged around the central axis of the temperature control cavity and heat conducting structures corresponding to the heating plates one by one, and the heat conducting structures are abutted between the heating plates and the inner wall of the temperature control cavity; The heat insulation unit comprises a heat insulation bag arranged in the temperature control cavity, a material box communicated with the heat insulation bag, and a transfer piece arranged between the heat insulation bag and the material box, wherein the heat insulation bag is filled between two adjacent heat conduction structures, the transfer piece is used for transferring contents in the heat insulation bag and the material box, and the heat insulation unit is used for preventing the heat insulation bag from being damaged when the heat insulation bag is in a closed state, and is used for transferring contents in the heat insulation bag and the material box from being damaged when the heat insulation bag is in a closed state The female die unit comprises a lower forming seat which is arranged opposite to the upper forming seat, and the lower forming seat is provided with a forming cavity which is matched with the upper forming seat.
2. The continuous cup suction mold of claim 1, wherein the heating plate is slidably arranged in the temperature control cavity, and the heating plate moves along the axial direction of the temperature control cavity; The temperature control assembly further comprises: The annular frame is arranged in the temperature control cavity, and a plurality of sliding grooves are formed in the inner wall of the annular frame; The connecting blocks are arranged in the sliding grooves in a one-to-one correspondence manner, move along the radial direction of the annular frame and have electric potentials connected with the heating plates; The pneumatic piece is provided with air pipes which are communicated with the sliding grooves in a one-to-one correspondence manner, and the air pipes are used for inflating or exhausting air into the corresponding sliding grooves; the scheduling piece is rotationally connected to the inner top wall of the temperature control cavity, rotates around the central axis of the temperature control cavity, stretches and contracts along the axial direction of the temperature control cavity, and The rotating piece is connected with the dispatching piece in a transmission way and used for driving the dispatching piece to rotate.
3. The continuous cup suction mold of claim 2, wherein the temperature control assembly further comprises: the reversing disc is rotationally connected to the inner bottom wall of the temperature control cavity, the reversing disc rotates by taking the axial direction of the temperature control cavity as a rotating shaft, and the annular frame is fixedly connected with the reversing disc; a reversing piece which is connected with the reversing disc in a transmission way and is used for driving the reversing disc to rotate, and The guide structures are in one-to-one correspondence with the heating plates, each guide structure comprises an upper hanging rod fixedly connected to the annular frame and a lower hanging rod fixedly connected to the reversing disc, one end of each heating plate is provided with an upper hanging groove in sliding fit with the upper hanging rod, and the other end of each heating plate is provided with a lower hanging groove in sliding fit with the lower hanging rod.
4. The continuous cup suction mold as claimed in claim 3, wherein the heat conducting structure is arranged on the reversing disc, and comprises a plurality of heat conducting plates arranged adjacently and moving parts corresponding to the heat conducting plates one by one, and the moving parts are used for driving the heat conducting plates to move along the radial direction of the temperature control cavity; the temperature control assembly further comprises a compensation structure arranged between the heat conduction structure and the heating plate, the compensation structure comprises compensation plates corresponding to the heat conduction plates one by one and transmission parts corresponding to the compensation plates one by one, the section of each compensation plate is triangular, the inclined sides of the compensation plates are abutted to the heat conduction plates, the transmission parts are in transmission connection with the compensation plates, and the transmission parts are used for driving the compensation plates to move along the axial direction of the temperature control cavity.
5. The continuous cup suction mold of claim 4 wherein the moving member has a drive seat; the transmission member includes: the air guide cylinder is fixedly connected with the reversing disc and extends along the radial direction of the reversing disc; the piston is arranged in the air guide cylinder in a sliding way and is fixedly connected with the driving seat; a bottom column fixedly connected with the reversing disc, a pressure changing cavity formed by inward recessing of the top surface of the bottom column and communicated with the air guide cylinder, and The sliding rod is arranged in the pressure transformation cavity in a sliding way, and the top end of the sliding rod is fixedly connected with the compensation plate.
6. The continuous cup suction mold according to claim 4, wherein a contact groove is formed in one side of the compensation plate facing the heat conducting plate, and a surface rubbing unit is arranged in the contact groove; the rubbing unit comprises: The expansion panel is arranged in the contact groove in a sliding manner, a deformation piece is fixedly connected between the expansion panel and the compensation plate, the deformation piece has pretightening force for enabling the expansion panel to extend out of the contact groove, and the expansion panel is also abutted to the heat conducting plate; The surface expansion air bag is fixedly connected with the surface expansion plate; a surface expansion tank communicated with the surface expansion air bag, and The surface rubbing piece is arranged between the surface rubbing box and the surface rubbing air bag and used for transferring contents between the surface rubbing air bag and the surface rubbing box.
7. The continuous cup suction mold according to claim 6, wherein a winding unit is further provided in the contact groove; the winding unit comprises: A wind-up roller rotatably connected to the inner wall of the contact groove, the surface air bag wound around the wind-up roller, and The elastic piece is arranged between the winding roller and the inner wall of the contact groove and has pretightening force for enabling the winding roller to wind the surface expansion air bag.
8. The continuous cup suction mold according to claim 1, wherein a sealing groove is formed in the top surface of the lower molding seat, a slot corresponding to the sealing groove is formed in the bottom surface of the upper molding seat, and a sealing unit is arranged in the sealing groove; The sealing unit includes: a sealing ring slidably disposed in the sealing groove, and The telescopic piece is fixedly connected between the sealing ring and the inner wall of the sealing groove, and stretches and contracts along the axial direction of the forming cavity.
9. The continuous cup suction mold of claim 8, wherein a plurality of demolding holes are formed in the inner side of the sealing ring, and an inflating member communicated with the demolding holes is arranged in the sealing ring and used for blowing air into the demolding holes.
10. A forming guide apparatus comprising a continuous cup suction mold according to any one of claims 1 to 9, comprising: a sheet feeding unit for continuously conveying a plastic sheet between the upper molding seat and the lower molding seat; The molding unit comprises an upper base, a lower base and a driving structure, wherein the upper base and the lower base are oppositely arranged, the driving structure is in transmission connection with the upper base and the lower base, the driving structure is used for driving the upper base and the lower base to move close to or away from each other, a plurality of male die units are arranged, the male die units are arranged on the upper base, the female die units are in one-to-one correspondence with the male die units, and the female die units are arranged on the lower base; A cutting and separating unit arranged at the downstream of the forming unit for cutting and separating the cup-barrel products, and And the traction unit is arranged at the downstream of the cutting and separating unit and is used for pulling out the formed cup cylinder products and rim charge from the forming station and rolling or crushing and recycling the rim charge.

Description

Continuous cup cylinder plastic suction mold and forming guide equipment Technical Field The invention belongs to the technical field of plastic molding, and particularly relates to a continuous cup cylinder plastic sucking die and molding guiding equipment. Background Vacuum plastic molding is a processing technology widely applied to the fields of plastic packaging, medical equipment, automobile interior decoration and the like, and the basic principle is that thermoplastic sheets are softened by heating, then the thermoplastic sheets are attached to the outline of a die by vacuum adsorption, and the thermoplastic sheets are cooled to obtain the required shape. Among them, the vacuum forming of the relief mold is favored because it is capable of forming an article having a complex three-dimensional structure and locally fine features. In the forming process, the heating link of the sheet is important. The sheet material needs to be heated uniformly to the deformation temperature range of the material to obtain good fluidity and ductility, thereby ensuring that the concave-convex surface of the mold can be fully stretched and adhered under the vacuum effect. However, due to the shape limitations of the final shaped article, there are significant differences in the degree of stretching, radius of curvature and depth at each location, which results in different regions of the sheet that are not at the same desired temperature actually required for shaping. Currently, heating systems employed by most vacuum-forming apparatus in the industry, such as far-infrared heating panels or ovens, typically provide for integral, uniform radiant or convective heating of the sheet material. The heating mode ensures that the whole sheet is at a substantially same temperature level before entering the forming station, and the differential regulation and control of the temperature can not be realized according to the local requirement of the forming shape. Disclosure of Invention The embodiment of the invention provides a continuous cup cylinder plastic sucking die and molding guiding equipment, which aim to solve the technical problem that the differential regulation and control of sheet temperature cannot be realized according to the local requirement of a molding shape. In a first aspect, an embodiment of the present invention provides a continuous cup suction mold, including: The male die unit comprises an upper forming seat and a temperature control assembly, a temperature control cavity is formed in the upper forming seat, the temperature control assembly is arranged in the temperature control cavity, the temperature control assembly comprises a plurality of heating plates arranged around the central axis of the temperature control cavity and heat conducting structures corresponding to the heating plates one by one, and the heat conducting structures are abutted between the heating plates and the inner wall of the temperature control cavity; The heat insulation unit comprises a heat insulation bag arranged in the temperature control cavity, a material box communicated with the heat insulation bag, and a transfer piece arranged between the heat insulation bag and the material box, wherein the heat insulation bag is filled between two adjacent heat conduction structures, the transfer piece is used for transferring contents in the heat insulation bag and the material box, and the heat insulation unit is used for preventing the heat insulation bag from being damaged when the heat insulation bag is in a closed state, and is used for transferring contents in the heat insulation bag and the material box from being damaged when the heat insulation bag is in a closed state The female die unit comprises a lower forming seat which is arranged opposite to the upper forming seat, and the lower forming seat is provided with a forming cavity which is matched with the upper forming seat. In one possible implementation manner, the heating plate is slidably arranged in the temperature control cavity, and the heating plate moves along the axial direction of the temperature control cavity; The temperature control assembly further comprises: The annular frame is arranged in the temperature control cavity, and a plurality of sliding grooves are formed in the inner wall of the annular frame; The connecting blocks are arranged in the sliding grooves in a one-to-one correspondence manner, move along the radial direction of the annular frame and have electric potentials connected with the heating plates; The pneumatic piece is provided with air pipes which are communicated with the sliding grooves in a one-to-one correspondence manner, and the air pipes are used for inflating or exhausting air into the corresponding sliding grooves; the scheduling piece is rotationally connected to the inner top wall of the temperature control cavity, rotates around the central axis of the temperature control cavity, stretches and contracts along the axial dire