CN216683153U

CN216683153U - Low-temperature thermoplastic sheet production mold

Info

Publication number: CN216683153U
Application number: CN202123247405.XU
Authority: CN
Inventors: 高杨
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-06-07
Anticipated expiration: 2031-12-22

Abstract

The utility model relates to a production mold of a low-temperature thermoplastic plate, and belongs to the technical field of production of low-temperature thermoplastic plates. The production mould includes cope match-plate pattern and lower bolster, cope match-plate pattern and lower bolster butt joint leave the thermoplate molding chamber between the two, the upside of cope match-plate pattern is provided with the hot runner fixed plate, be provided with hot runner plate on the hot runner fixed plate, the inside runner for lining up of hot runner plate, the downside equipartition of hot runner plate has a plurality of heating mouths, the inside runner of heating mouth intercommunication hot runner plate, the heating mouth passes the hot runner fixed plate downwards, the position that the cope match-plate pattern corresponds a plurality of heating mouths is opened respectively and is had the perforation, the perforation intercommunication thermoplate molding chamber that the cope match-plate pattern corresponds is passed through to the bottom of heating mouth. The low-temperature thermoplastic plate production mold designed by the utility model adopts an injection molding mode to produce the low-temperature thermoplastic plate, the equipment cost is lower, and no waste is generated, so that the product cost can be effectively reduced.

Description

Low-temperature thermoplastic sheet production mold

Technical Field

The utility model relates to the technical field of low-temperature thermoplastic plate production, in particular to a low-temperature thermoplastic plate production mold.

Background

The application of low-temperature thermoplastic plates in the modern society is continuously increased, the production process of the low-temperature thermoplastic plates in the current market is that all extrusion machine equipment is adopted for molding, raw materials are placed into the extrusion machine to realize plate molding through extrusion, and then cutting equipment is utilized to cut the low-temperature thermoplastic plates into proper sizes. The process needs a large-scale extruder, the equipment cost is high, more waste materials are generated, the product cost is correspondingly improved, the product production can only be realized by purchasing equipment by self, the outsourced production cannot be realized, and the flexibility is low.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model designs the low-temperature thermoplastic plate production mold, realizes the production of the low-temperature thermoplastic plate by a mold injection molding mode, and has the advantages of low cost, high efficiency and high flexibility.

The technical scheme adopted by the utility model is as follows: the production mould includes cope match-plate pattern and lower bolster, cope match-plate pattern and lower bolster butt joint leave the thermoplate molding chamber between the two, the upside of cope match-plate pattern is provided with the hot runner fixed plate, be provided with the hot runner board on the hot runner fixed plate, the inside runner that is had a perfect understanding of hot runner board, the middle part is opened there is the injecting glue mouth, the downside equipartition of hot runner board has a plurality of columniform heating mouths, the inside runner of heating mouth intercommunication hot runner board, the hot runner fixed plate is passed downwards to the heating mouth, the position that the cope match-plate pattern corresponds a plurality of heating mouths is opened respectively has the perforation, the perforation intercommunication thermoplate molding chamber that the cope match-plate pattern corresponds is passed through to the bottom of heating mouth. Liquid thermoplastic material is injected into the hot runner plate through the glue injection port, and then is uniformly distributed into the forming cavity between the upper and lower templates through the plurality of heating nozzles on the lower side of the hot runner plate for cooling and forming, so that the hot runner plate heats the liquid material, and the good fluidity of the liquid material is ensured.

Furthermore, electric heating wires are arranged in the hot runner plate and the heating nozzle along the flow channel, and a power cord socket of the electric heating wires is reserved on the hot runner plate. The heating wire is arranged along the flow channel, so that the liquid material is continuously heated in the operation process, and the flow channel is prevented from being blocked by solidification.

Further, hot runner plate is the H type, it has the fixed hole site of H type to open on the hot runner fixed plate, hot runner plate block is fixed in the fixed hole site of H type of hot runner fixed plate, the injecting glue mouth is opened at the upside middle part of the cross flow way of hot runner plate intermediate position, the downside of hot runner plate is equipped with 5 heating mouths, and 5 heating mouths set up respectively at the middle part of the cross flow way in the middle of the hot runner plate and the both ends of the vertical runner of both sides. Liquid materials are uniformly conveyed to the forming cavity through 5 heating nozzles of the H-shaped hot runner plate, and the material injection efficiency is improved.

Furthermore, cooling water flow passages are uniformly distributed in the plate bodies of the lower template and the upper template respectively, and the side surfaces of the plate bodies of the cooling water flow passages are provided with circulating cooling water connectors. The solidification rate of the thermoplastic sheet is increased by circulating cooling water.

Furthermore, a lower die fixing plate is assembled on the bottom side of the lower die plate, an upper die fixing plate is assembled on the upper side of the hot runner fixing plate, a glue injection hole through hole is reserved in the middle of the upper die fixing plate, and the glue injection hole of the hot runner plate penetrates out of the glue injection hole through hole.

Furthermore, temperature-sensing wires are arranged inside the hot runner plate and the heating nozzle along the flow channel. The temperature sensing wire is connected with an external display instrument to display the temperature in the flow channel in real time, so that the heating of the electric heating wire is convenient to control.

Furthermore, needle valves are respectively penetrated in 5 heating nozzles of the hot runner plate. The opening and closing of the flow passage in the heating nozzle are controlled by a needle valve.

Furthermore, a plurality of narrow overflow channels extend outwards from the lower template along the four sides of the thermoplastic plate molding cavity respectively. Ensuring the full mold filling of the thermoplastic plate in the molding cavity.

Furthermore, fastening through holes are correspondingly formed in the four corners of the upper template and the lower template respectively.

Compared with the prior art, the utility model discloses a mold for producing low-temperature thermoplastic plates, which has the advantages that: the injection molding production of the low-temperature thermoplastic plate is realized by arranging the hot runner plate, the upper template and the lower template, the single production mode of the traditional extrusion type is eliminated, and the production efficiency is improved. The heating nozzles at the lower part of the hot runner plate are provided with heating wires and temperature sensing wires along the flow channel, so that the flow channel is continuously heated, good fluidity of liquid materials is ensured, and meanwhile, the heating temperature can be effectively controlled. The hot runner plate becomes the H type, and 5 heating mouths of bottom equipartition are annotated the material to the one-tenth die cavity, improve and annotate material speed, promote production efficiency. All set up the cooling water runner in the upper and lower template, improve the cooling shaping efficiency of thermoplastic sheet, further improvement production efficiency.

Drawings

FIG. 1 is a schematic view of a split structure of a mold for producing low temperature thermoplastic sheets.

Fig. 2 is a schematic structural view of the hot runner plate.

Fig. 3 is a perspective schematic view of a heating nozzle of the hot runner plate.

In the figure, an upper template 1, a lower template 2, a hot runner fixing plate 3, an upper template fixing plate 4, a lower template fixing plate 5, a hot runner plate 6, a thermoplastic plate 7, a needle valve 8, a fastening through hole 10, a glue injection through hole 11, a thermoplastic plate molding cavity 21, an overflow channel 22, a fixing hole position 31, a heating nozzle 61, a glue injection port 62, a transverse flow channel 63, a longitudinal flow channel 64 and a glue injection port 41 are punched.

Detailed Description

The utility model is further described with reference to the following figures and specific embodiments. The technical solutions in the embodiments of the present invention are clearly and completely described, and the described embodiments are only some embodiments, but not all embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention.

As shown in fig. 1, 2 and 3, the present invention discloses an embodiment of a low-temperature thermoplastic plate production mold, in this embodiment, the production mold includes an upper mold plate 1 and a lower mold plate 2, the upper mold plate 1 and the lower mold plate 2 are butted with each other, a thermoplastic plate molding cavity 21 is left between the upper mold plate 1 and the lower mold plate 2, a hot runner fixing plate 3 is assembled on the upper side of the upper mold plate 1, a hot runner plate 6 is arranged on the hot runner fixing plate 3, a lower mold fixing plate 5 is assembled on the bottom side of the lower mold plate 2, and an upper mold fixing plate 4 is assembled on the upper side of the hot runner fixing plate 3. The four corners of the upper template 1 and the lower template 2 are respectively and correspondingly provided with fastening through holes 10 for connecting and fastening the upper template 1 and the lower template 2 through bolts.

The hot runner plate 6 is H-shaped, an H-shaped fixing hole 31 is formed in the hot runner fixing plate 4, and the hot runner plate 6 is clamped and fixed in the H-shaped fixing hole 31 of the hot runner fixing plate 4. The interior of the hot runner plate 6 is a through runner, and the middle part is provided with a glue injection port 62. The glue injection port 62 is opened in the upper middle portion of the lateral flow channel 63 in the middle of the hot runner plate 6. The lower side of the hot runner plate 6 is provided with 5 cylindrical heating nozzles 61, one heating nozzle 61 is arranged in the middle of a transverse runner 63 in the middle of the hot runner plate 6, the remaining 4 heating nozzles 61 are respectively arranged at two ends of longitudinal runners 64 on two sides, the heating nozzles 61 are communicated with runners inside the hot runner plate 6, and the heating nozzles 61 downwards penetrate through the hot runner fixing plate 4. The upper template 1 is provided with 5 glue injection through holes 11 corresponding to the 5 heating nozzles 61, and the bottom ends of the heating nozzles 61 are communicated with the thermoplastic plate molding cavities 21 through the glue injection through holes 11 corresponding to the upper template 1. Heating wires and temperature sensing wires are arranged in the hot runner plate 6 and the heating nozzle 61 along the flow channel, a power line socket of the heating wires is reserved on the hot runner plate 6, and the temperature sensing wires are connected with an external display instrument to display the temperature in the flow channel in real time. The needle valves 8 penetrate through the 5 heating nozzles 61 respectively, a channel for liquid materials to flow in the heating nozzles is formed by the needle valves 8, the needle valves 8 are pneumatic valves and are externally connected with pneumatic control ends, and opening and closing of flow channels of the heating nozzles 61 are directly controlled.

The lower template 2 extends outwards along four sides of the thermoplastic board molding cavity 21 to form a plurality of narrow overflow channels 22, so that the thermoplastic board can be fully filled in the molding cavity. Cooling water flow passages are respectively and uniformly distributed in the plate bodies of the lower template 2 and the upper template 1, circulating cooling water interfaces are arranged on the side surfaces of the plate bodies of the cooling water flow passages, and the solidification speed of the thermoplastic plate is increased through circulating cooling water.

During production, the low-temperature thermoplastic material is added into an injection molding machine, is melted at a high temperature of 130 ℃ in the injection molding machine, is injected into a hot runner plate of a mold through a glue injection port, and then enters a heating nozzle. The inside heating wire heating temperature of mainstream guidance tape and heating nozzle is controlled through outside temperature control box, with the accurate control of temperature: the main runner plate is 110 degrees, and the heating nozzle is 70 degrees. And then the needle valve is controlled to be opened by an external air compressor, the material enters the mold through the needle valve, and after the material completely enters the mold, the needle valve is closed. At the moment, a cooling water circulation device in the die starts to work, the material is cooled, and the product is molded.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the scope of the utility model, which is defined by the appended claims and the description of the utility model.

Claims

1. The utility model provides a low temperature thermoplastic slab production mould, a serial communication port, the production mould includes cope match-plate pattern and lower bolster, cope match-plate pattern and lower bolster butt joint leave thermoplastic slab molding chamber between the two, the upside of cope match-plate pattern is provided with the hot runner fixed plate, be provided with the hot runner board on the hot runner fixed plate, the inside runner for lining up of hot runner board, open at the middle part has the injecting glue mouth, the downside equipartition of hot runner board has a plurality of columniform heating mouths, the inside runner of heating mouth intercommunication hot runner board, the hot runner fixed plate is passed downwards to the heating mouth, the position that the cope match-plate pattern corresponds a plurality of heating mouths is opened respectively has the injecting glue to perforate, the injecting glue perforation intercommunication thermoplastic slab molding chamber that the cope match-plate pattern corresponds is passed through to the bottom of heating mouth.

2. The mold for producing thermoplastic boards at low temperature according to claim 1 wherein the interior of the hot runner plate and the heating nozzle are provided with heating wires along the flow path, and the hot runner plate is provided with power cord sockets for the heating wires.

3. The mold for producing low-temperature thermoplastic plates according to claim 2, wherein the hot runner plate is H-shaped, the hot runner fixing plate is provided with H-shaped fixing holes, the hot runner plate is fastened and fixed in the H-shaped fixing holes of the hot runner fixing plate, the glue injection opening is formed in the middle of the upper side of the transverse runner in the middle of the hot runner plate, the lower side of the hot runner plate is provided with 5 heating nozzles, and the 5 heating nozzles are respectively arranged in the middle of the transverse runner in the middle of the hot runner plate and at two ends of the longitudinal runners on two sides of the hot runner plate.

4. The mold for producing the low-temperature thermoplastic plate as claimed in claim 3, wherein the lower mold plate and the upper mold plate are respectively provided with cooling water channels, and the cooling water channels are provided with circulating cooling water ports on the side surfaces of the lower mold plate and the upper mold plate.

5. The mold for producing low-temperature thermoplastic plates according to claim 4, wherein a lower mold fixing plate is assembled on the bottom side of the lower mold plate, an upper mold fixing plate is assembled on the upper side of the hot runner fixing plate, a glue injection hole through hole is reserved in the middle of the upper mold fixing plate, and the glue injection hole of the hot runner plate penetrates upwards through the glue injection hole through hole.

6. The mold for producing thermoplastic boards at low temperature according to claim 5, wherein the heat runner plate and the heating nozzle are provided with temperature-sensitive wires along the flow path.

7. The mold for producing a low temperature thermoplastic sheet as claimed in claim 6, wherein the 5 heating nozzles of said hot runner plate are each pierced with a needle valve.

8. The mold for producing a low-temperature thermoplastic sheet according to claim 7, wherein the lower mold plate has a plurality of narrow spillways extending outwardly along four sides of the thermoplastic forming cavity.

9. The mold for producing low-temperature thermoplastic plates according to claim 8, wherein the four corners of the upper and lower mold plates are respectively and correspondingly provided with fastening through holes.