CN106626314A - A synthetic extrusion die with stable output - Google Patents

Abstract

The invention relates to the field of plastics, and provides a synthetic extrusion die capable of discharging stably. The technical scheme is as follows: the utility model provides a synthetic extrusion tooling of stable ejection of compact, includes the body, characterized by: the body comprises a bidirectional material injection extrusion module group which can more firmly combine and connect different materials, and a shaping module (7) with the caliber suitable for the material cold shrinkage ratio and capable of ensuring the stable output of a product is arranged at a discharge port of the extrusion module group in a matching way; the extrusion module group sequentially comprises a transverse injection block (1), a longitudinal injection block (2), a feeding extrusion block (3), a molding transition block (4), a molding block (5) and a feeding scratch block (6), and the transverse injection block (1), the longitudinal injection block (2), the feeding extrusion block (3), the molding transition block (4), the molding block (5) and the feeding scratch block (6) are closely adhered and synthesized; an upper extrusion material channel and a lower extrusion material channel are formed inside the extrusion module group, a transverse injection block (1) is injected for blanking and is formed in the lower material channel, and a longitudinal injection block (2) is injected for feeding and is formed in the upper material channel.

Description

A synthetic extrusion die with stable output

technical field

The invention relates to the field of plastics, in particular to a synthetic extrusion die with stable discharge.

Background technique

The domestic profile extrusion mold industry has developed along with the rapid popularization and application of plastic doors and windows. It has experienced a development process from scratch, from small to large, from complete surveying and mapping at the beginning, imitating foreign products to now independent development. In recent years, the industry has made great progress, and some products have been exported to European and American markets.

For extrusion molds, due to the characteristics of plastic raw materials, the requirements for molds are particularly high, especially for extrusion molds with different material combinations and molds with high product requirements, often there will be various failures in the production process, such as fracture , The discharge is not tight enough, the hardness and corrosion resistance are difficult to meet the ideal requirements, etc. These reasons are closely related to the design of the mold.

To this end, a synthetic extrusion die with stable discharge is provided to improve the compactness of the discharge, enhance the hardness of the product, and ensure the stability of continuous discharge.

Contents of the invention

The invention provides a synthetic extrusion die with stable discharge, the purpose of which is to improve the compactness of discharge, enhance the hardness of products, and ensure the stability of continuous discharge. The invention is applicable to the field of plastics.

The technical scheme adopted in the present invention is:

A synthetic extrusion die with stable output, including a body, is characterized in that: the body includes a two-way injection and a more solid extrusion module group that combines and connects different materials, and the outlet of the extrusion module group The internal part is equipped with a shaping module whose diameter is suitable for the cold shrinkage ratio of the material and ensures the stable output of the product.

More preferably, a synthetic extrusion die with stable discharge is characterized in that: the extrusion module group sequentially includes a horizontal injection block, a vertical injection block, a feeding extrusion block, a molding transition block, and a molding block. block and feeding scraping block, horizontal injection block, vertical injection block, feeding extrusion block, overmolding block, molding block and feeding scraping block are tightly bonded together; the inside of the extrusion module group Two upper and lower extrusion channels are formed, the horizontal injection block is injected into the lower material and formed in the lower channel, and the vertical injection block is injected into the upper material and formed in the upper channel.

More preferably, a synthetic extrusion die with stable discharge is characterized in that: the extrusion module group includes a horizontal injection block, and a filling material is provided on the lower half of the side of the horizontal injection block. Pressure injection port, the opening of the pressure injection port is in the shape of a funnel that gradually shrinks inward, and a longitudinal injection block that makes the horizontal injection material primary shape is closely attached to the other side of the pressure injection port.

More preferably, a synthetic extrusion die with stable discharge is characterized in that: the top of the longitudinal injection block is provided with an injection nail for injecting material into the longitudinal injection block, and the upper end of the injection nail is connected to There is a feeding hopper, inside the vertical injection block, there is a longitudinal feed channel connected to the bottom of the injection nail and leading out the material horizontally; The half part is provided with a horizontal feed extrusion surface that makes the material fed into the pressure injection port overflow, and a horizontal feed extrusion surface is provided around the horizontal feed extrusion surface to allow the extruded blank to overflow and make the extruded bottom The blanking primary molding channel for the primary molding of the material; the other side of the horizontal feeding extrusion surface is close to a feeding extrusion block for the primary molding of the longitudinally injected material.

More preferably, a synthetic extrusion die with stable discharge is characterized in that: the primary molding channel for the blanking is provided with a device that divides the primary molding channel for the blanking into multiple lanes and divides the blanking into narrow strips. clapboard.

More preferably, a synthetic extrusion die with stable discharge is characterized in that: the lower part of the extruded block of the feeding material is provided with a secondary molding of the blanking material that continues the primary molding channel of the blanking material and re-forms the blanking material Road; the upper half of the bonding surface between the feeding extrusion block and the longitudinal injection block is provided with a longitudinal feeding extrusion surface that makes the longitudinal feeding and extrusion overflow, and a longitudinal feeding extrusion surface is provided around the longitudinal feeding extrusion surface. There is a primary forming channel for extruded material to overflow and make the extruded material primary formed; the other side of the longitudinal feeding extrusion surface is closely attached to an overmolding block to ensure the complete forming of the upper and lower materials.

More optimally, a synthetic extrusion die with stable discharge is characterized in that: the primary molding path for feeding and the secondary molding path for discharging are equipped with the primary molding path for feeding and the secondary molding path for discharging. It is divided into multiple lanes and divides the loading and unloading materials into narrow strip-shaped partitions.

More optimally, a synthetic extrusion die with stable discharge is characterized in that: the transitional molding block is provided with a transitional passage for continuing the primary molding passage for feeding and a transitional passage for continuing the secondary molding passage for unloading ; On the other side of the over-molding block, there is a molding block that connects the upper material and the lower material as a whole.

More optimally, a synthetic extrusion die with stable discharge is characterized in that: the transitional passage for feeding material and the transitional passage for unloading are equipped with the passage for dividing the transitional passage for feeding material and the transitional passage for unloading into multiple trails and make The upper and lower materials are divided into narrow strip partitions.

More optimally, a synthetic extrusion die with stable discharge is characterized in that: the molding block includes a continuous feeding passageway and a feeding molding passage that merges overflowing narrow strips of materials into wide strips And continue the blanking transition channel and merge the overflowing narrow strip-shaped blanking material into a wide strip of blanking molding channel; there are no partitions inside the respective channels of the upper material molding channel and the blanking molding channel, each The inside of the channel is a connected cavity; the other side of the plastic block is close to a feeding scraping block for feeding scraping and squeezing the loading and unloading to increase the density of loading and unloading.

More preferably, a synthetic extrusion die with stable discharge is characterized in that: the feeding scratch block includes a feeding scraping road that continues the feeding molding path and forms a texture on the inner wall surface of the feeding material. On the inner side of the cavity of the material scraping groove, there is a continuous bump that makes the inner wall of the feeding material form a corresponding pattern; the lower part of the feeding scraping groove block is provided with a lower part that continues the blanking molding channel and squeezes the blanking material. Material pressing dense channel; behind the feeding scraping block, there is a shaping module that cools and shapes the formed upper and lower materials and connects the upper and lower materials into a whole.

More preferably, a synthetic extrusion die with stable discharge is characterized in that: the cavity width of the feeding scraping track and the blanking compacting channel is slightly smaller than that of the feeding molding channel and the blanking molding channel cavity width.

More preferably, a synthetic extrusion die with stable discharge is characterized in that: the shaping module includes an inner wall of the shaping block that adheres to the flowing molding material and cools and solidifies the molding material. The outer wall of the shaped block is wrapped with the outer wall of the shaped block, and a water channel for cooling the inner core of the shaped block is provided between the inner core of the shaped block and the outer wall of the shaped block; the two symmetrical walls of the outer wall of the shaped block are correspondingly provided with water inlet and outlet circulation. Water inlet and outlet.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

Fig. 1 is a forward exploded perspective view of the present invention;

Fig. 2 is a reverse exploded perspective view of the present invention;

Fig. 3 is a schematic cross-sectional view of the present invention.

The labels in the figure show:

1-horizontal injection block, 11-pressure injection port;

2-Longitudinal injection block, 21-Injection nail, 22-Injection hopper, 23-Longitudinal feed channel, 24-Transverse feed extrusion surface, 25-Unloading primary molding channel;

3-feeding extrusion block, 31-longitudinal feeding extrusion surface, 32-feeding primary forming channel, 33-discharging secondary forming channel;

4-molding excessive block, 41-feeding transition road, 42-feeding transition road;

5-molding block, 51-feeding molding road, 52-feeding molding road;

6-feeding scraping block, 61-feeding scraping road, 62-feeding compacting road;

7-shaping module, 71-outer wall of shaping block, 711-circulating water inlet and outlet, 72-inner core of shaping block, 73-water channel.

detailed description:

The invention provides a synthetic extrusion die with stable discharge, which is suitable for the field of plastics. The present invention can be implemented in the following ways:

As shown in Figure 1-3: a synthetic extrusion die with stable output, including a body, the body includes a two-way injection and a more solid extrusion module group that connects different materials, in the extrusion module group The discharge port is equipped with a sizing module 7 whose caliber is suitable for the cold shrinkage ratio of the material and ensures the stable output of the product.

The extrusion module group sequentially includes a horizontal injection block 1, a vertical injection block 2, a feeding extrusion block 3, a molding transition block 4, a molding block 5 and a feeding scraping block 6, and the horizontal injection block 1 , the vertical injection block 2, the feeding extrusion block 3, the overmolding block 4, the molding block 5 and the feeding scraping block 6 are tightly bonded together; the extrusion module group internally constitutes two extrusion materials up and down The horizontal injection block 1 is injected into the lower material and formed in the lower channel, and the vertical injection block 2 is injected into the upper material and formed in the upper channel.

The extrusion module group includes a horizontal injection block 1, and a pressure injection port 11 for filling blanks is provided on the lower half of the side of the horizontal injection block 1. The opening of the pressure injection port 11 is The funnel shape that gradually shrinks inward, when the blank enters from the outside, the blank is compressed, thereby increasing the density of the blank in the lower channel; on the other side of the pressure injection port 11, there is a lateral injection Longitudinal injection block 2 for primary molding of material.

The top of the longitudinal injection block 2 is provided with an injection nail 21 for injecting material into the vertical injection block 2, and an injection hopper 22 for feeding is connected to the upper end of the injection nail 21, and the injection hopper 22 is also a funnel shape, to ensure the tightness of the upper feeding channel when feeding; inside the longitudinal injection block 2, there is a longitudinal feeding channel 23 that is connected to the bottom of the injection nail 21 and guides the feeding material horizontally; the longitudinal The lower half of the bonding surface between the injection block 2 and the horizontal injection block 1 is provided with a horizontal feed extrusion surface 24 that makes the material fed into the pressure injection port 11 overflow and overflow, and on the horizontal feed extrusion surface 24 There is a blanking primary forming channel 25 that allows the extruded blanks to overflow into and make the extruded blanks primary formed; Formed feeding extruded block 3.

The blanking primary forming channel 25 is provided with partitions that divide the blanking primary forming channel 25 into multiple lanes and divide the blanking into narrow strips.

The lower half of the feeding extrusion block 3 is provided with a secondary molding passage 33 that continues the blanking primary molding channel 25 and reshaped the blanking material; the feeding extrusion block 3 and the longitudinal injection block 2 The upper half of the bonding surface is provided with a longitudinal feeding extrusion surface 31 that allows the longitudinal feeding and extruding overflow, and a longitudinal feeding extrusion surface 31 is provided around the longitudinal feeding extrusion surface 31 to allow the extruded feeding material to overflow and make the extruded material overflow. Extrusion feeding primary molding channel 32; the other side of the longitudinal feeding extrusion surface 31 is closely attached to a molding transition block 4 to ensure complete loading and unloading molding.

The primary molding path 32 for feeding and the secondary molding path for blanking 33 are all provided with a section that divides the primary molding path 32 for feeding and the secondary molding path 33 for blanking into multiple trails and divides the loading and unloading into narrow strips. clapboard.

The over-molding block 4 is provided with an over-feeding over-way 41 that continues the primary over-molding lane 32 and an under-feed over-overway 42 over through the secondary over-molding lane 33 for the continuation of the material; There is a molding block 5 that makes feeding and blanking connect itself into a whole.

Both the transitional feeding passage 41 and the transitional discharge passage 42 are provided with partitions that divide the transitional passage 41 and the transitional discharge passage 42 into multiple lanes and divide the loading and unloading passages into narrow strips.

The feeding extrusion block 3 and the longitudinal injection block 2 before the forming transition block 4 and including the upper channel or the lower channel in the forming transition block 4 are all provided with partitions inside, so that the upper and lower materials are divided into narrow strips , which is more conducive to the flow of the upper and lower materials, increases the pressure between the upper and lower materials, and ensures the tightness of the upper and lower materials themselves.

The molding block 5 includes a continuation of the feeding passageway 41 and the overflowing narrow strip-shaped feeding material is merged into a wide strip feeding molding road 51 and a continuation of the blanking passageway 42 and the overflowing narrow strip-shaped feeding material Merge into the blanking molding channel 52 of the wide strip; the insides of the feeding molding channel 51 and the blanking molding channel 52 are not provided with partitions, and the insides of the respective channels are connected cavities; the molding The other side of the block 5 is close to a feeding scraping block 6 for feeding scraping and extruding loading and unloading so as to improve the density of loading and unloading.

The feeding scraping block 6 includes a feeding scraping path 61 that continues the feeding molding path 51 and forms a pattern on the inner wall surface of the feeding material. The inner surface of the cavity of the feeding scraping path 61 is provided with a The inner wall surface forms continuous bumps with corresponding lines; the lower part of the upper material scraping pattern block 6 is provided with a blanking and compacting channel 62 that continues the blanking molding channel 52 and squeezes the blanking; The rear of the block 6 is provided with a shaping module 7 that makes the formed upper and lower materials cooled and shaped and that the upper and lower materials are connected as a whole.

The cavity widths of the feeding scraping channel 61 and the blanking compacting channel 62 are slightly smaller than the cavity widths of the feeding molding channel 51 and the blanking molding channel 52, that is, the feeding and blanking channels are respectively squeezed into the upper When the scraping groove 61 and the blanking compacting groove 62 are squeezed again, the precision of feeding and blanking is improved, and at the same time, the inner wall of the feeding is guaranteed to form corresponding lines more completely.

Inside the extrusion module group, the upper and lower feeders are always separated, that is, the upper and lower materials are not fused inside the extrusion module group. Since the upper and lower materials inside the extrusion module group are fluid, it is easy to fuse to prevent damage to the quality of the product.

The shaping module 7 includes an inner wall sticking to the molding material flowing through and cooling and solidifying the shaping block inner core 72, the outer wall of the shaping block inner core 72 is wrapped with a shaping block outer wall 71, and the shaping block inner core 72 A water channel 73 for cooling the inner core 72 of the shaping block is provided between the outer wall 71 of the shaping block; two symmetrical wall surfaces of the outer wall 71 of the shaping block are correspondingly provided with circulating water inlets and outlets 711 for water inflow and outflow.

The sizing module 7 and the extruding module group are all installed on the equipment. Through the overall cooperation of the two parts, when the loading and unloading materials pass through the sizing module 7 respectively, the temperature of the loading and unloading materials is reduced and the extrusion module set is shaped, so that the upper and lower materials are in the process of shrinking and shaping. During the whole process of shaping, the characteristics of the material itself are used to bond, which avoids the excessive joining of the two materials, ensures the success rate of discharging, and improves the stability of production.

To sum up, through the synthetic extrusion die with stable discharge provided by the present invention, the compactness of the discharge is improved through the design of the internal structure, the hardness of the product is enhanced, and the stability of continuous discharge is ensured.

Claims (13)

1. A synthetic extrusion die for stable discharge, including a body, characterized in that: the body includes a two-way injection and a more firm extrusion module group that combines different materials. The material opening is equipped with a shaping module (7) whose caliber is suitable for the cold shrinkage ratio of the material and ensures stable product output. 2. A synthetic extrusion die with stable discharge as claimed in claim 1, characterized in that: said extrusion module group comprises in turn a horizontal injection block (1), a vertical injection block (2), an upper Extrusion block (3), over-molding block (4), molding block (5) and feeding scraping block (6), horizontal injection block (1), vertical injection block (2), feeding extrusion block The output block (3), the over-molding block (4), the molding block (5) and the feeding scraping block (6) are tightly bonded together; the extrusion module group internally forms two extrusion channels, The horizontal injection block (1) is injected into the blank and formed in the lower channel, and the vertical injection block (2) is injected into the upper material and formed in the upper channel. 3. A kind of synthetic extruding mold of stable discharging as claimed in claim 2, it is characterized in that: said extruding module group comprises a transverse injection block (1), on the lateral injection block (1) side The lower half is provided with a pressure injection port (11) for filling the material, the opening of the pressure injection port (11) is in the shape of a funnel that gradually shrinks inwards, The other side is closely attached to a longitudinal injection block (2) for primary molding of the transverse injection material. 4. A kind of synthetic extruding mold of stable discharge as claimed in claim 3, it is characterized in that: the top of described vertical injection block (2) is provided with a vertical injection block (2) and feeds Injection nail (21), the upper end of injection nail (21) is connected with a feeding hopper (22) for feeding, and the inside of longitudinal injection block (2) is provided with the bottom that is connected with injection nail (21) and will The longitudinal feed channel (23) for feeding material is led out horizontally; the lower half of the laminating surface of the longitudinal injection block (2) and the horizontal injection block (1) is provided with a pressure injection port (11) to enter The horizontal feeding extrusion surface (24) that the blanking material extrudes and overflows is provided with a blanking material that allows the extruded blanking material to overflow and make the extruded blanking material primary shape around the horizontal feeding extrusion surface (24). The primary molding channel (25); the other side of the horizontal feeding extrusion surface (24) is closely attached to a feeding extrusion block (3) for primary molding of the longitudinally injected material. 5. A kind of synthetic extruding mold of stable discharge as claimed in claim 4, it is characterized in that: described blanking primary molding road (25) is provided with to make blanking primary molding road (25) be divided into a plurality of Trail and divide the blank into narrow strips. 6. a kind of synthetic extruding mold of stable discharge as claimed in claim 4 is characterized in that: the lower half of described loading extruded block (3) is provided with continuous blanking primary molding road (25) and The blanking secondary molding channel (33) for reshaping the blanking material; the upper half of the laminating surface of the feeding extrusion block (3) and the longitudinal injection block (2) is provided with a vertical feeding extrusion block. The longitudinal feed extrusion surface (31) with overflowing pressure is provided with a primary molding channel for extruded feed material overflowing and primary molding of the extruded feed material around the longitudinal feed extrusion surface (31) (32); the other side of the longitudinal feed extrusion surface (31) is closely attached to an overmolding block (4) that ensures complete loading and unloading molding. 7. a kind of synthetic extruding mold of stable discharging as claimed in claim 6 is characterized in that: all be provided with in the described feeding primary molding road (32) and blanking secondary molding road (33) The material primary forming path (32) and the blanking secondary forming path (33) are divided into a plurality of small paths and the upper and lower materials are divided into narrow strip-shaped partitions. 8. A synthetic extrusion die with stable discharge as claimed in claim 6, characterized in that: said over-molding block (4) is provided with an over-feeding passage (41) that continues the primary molding passage (32) ) and the blanking transition passage (42) that continues the blanking secondary molding passage (33); on the other side of the described molding transition block (4), there is a plastic molding that connects the loading and blanking itself into a whole. Block (5). 9. a kind of synthetic extruding mold of stable discharging as claimed in claim 8, is characterized in that: all be provided with in described feeding passageway (41) and unloading passageway (42) make feeding passageway (41) and blanking transition road (42) are divided into a plurality of trails and make loading and unloading divide into the dividing plate of narrow strip shape. 10. A synthetic extrusion die with stable discharge as claimed in claim 8, characterized in that: the plastic block (5) includes a continuous feeding passage (41) and a narrow strip that overflows The material is merged into the wide-strip feeding molding road (51) and the continuation of the blanking transition road (42) and the narrow strip-shaped blanking that overflows is merged into the wide-strip blanking molding road (52); There is no dividing plate inside the respective roads of the molding road (51) and the blanking molding road (52), and the insides of the respective roads are connected cavities; the other side of the molding block (5) is closely attached to a A feeding scraping block (6) for feeding scratches and squeezing the loading and unloading so as to increase the density of loading and unloading. 11. A synthetic extrusion die with stable discharge as claimed in claim 10, characterized in that: said feeding scratch block (6) includes a continuous feeding molding path (51) and makes the inner feeding The wall surface forms a feeding scraping track (61) with lines, and the inner side of the cavity of the feeding scraping track (61) is provided with a continuous bump that makes the inner wall surface of the feeding form a corresponding line; the feeding scraping block ( 6) The lower part is provided with a continuation of the blanking molding channel (52) and a blanking compacting channel (62) for extruding the blanking; at the rear of the feeding scraping block (6) is provided with a forming upper and lower The material is cooled and shaped and the upper and lower materials are connected to form an integral shaping module (7). 12. A synthetic extrusion die with stable discharge as claimed in claim 11, characterized in that: the cavity width of the feeding scraping track (61) and the blanking pressing track (62) is slightly smaller than that of the upper The cavity width of material molding road (51) and blanking molding road (52). 13. A kind of synthetic extruding die with stable discharge as claimed in claim 1 or 11, it is characterized in that: said shaping module (7) includes an inner wall sticking to the molding material flowing through and cooling and solidifying the molding material The shaped block inner core (72), is wrapped with the shaped block outer wall (71) on the outer wall of the shaped block inner core (72), is provided with the shaped block between the shaped block inner core (72) and the shaped block outer wall (71) A water channel (73) for cooling the inner core (72); two symmetrical wall surfaces of the outer wall (71) of the shaped block are correspondingly provided with circulating water inlets and outlets (711) for water inlet and outlet.