CN211709928U

CN211709928U - Ceramic tube die

Info

Publication number: CN211709928U
Application number: CN201922374379.3U
Authority: CN
Inventors: 周浪; 缪龙
Original assignee: Suzhou Yu'anjun Precision Technology Co ltd
Current assignee: Suzhou Yu'anjun Precision Technology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-10-20
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a ceramic pipe mould, include: the ceramic tube mold comprises a fixed mold component and a movable mold component, wherein the fixed mold component comprises a fixed mold core, the movable mold component comprises an ejection unit and a movable mold core, and the ceramic tube mold further comprises a hot runner system. The ceramic tube is injection-molded by arranging the hot runner system in the mold, and in order to keep the temperature of the mold constant and uniform, the circulating water path is arranged in the mold, so that the injection molding quality of the ceramic tube is good, no defect exists, the dimensional tolerance and the appearance requirement of a finished product reach or even exceed the requirements of a drawing, the mass production of the ceramic tube is stable, and the yield of the ceramic tube is high; divide into first cover half benevolence and second cover half benevolence with the cover half benevolence, its be provided with the post hole that corresponds with the shaping die cavity in the second cover half benevolence, when the die sinking, the second cover half benevolence that is provided with circulation water route need not to remove, releases the product from the shaping die cavity through the post hole, and each subassembly cooperation of mould is good, improves the production efficiency of product.

Description

Ceramic tube die

Technical Field

The utility model relates to a mould field.

Background

The hot runner technology is an advanced technology applied to a plastic injection molding ceramic tube mold runner system, and compared with a common injection molding ceramic tube mold, the hot runner injection molding ceramic tube mold has the advantages of high injection molding efficiency, good molding quality, raw material saving and the like. With the development of the injection molding industry, hot runner technology is gradually applied to the field of ceramic material injection molding. However, due to the characteristics of the ceramic injection molding material (poor fluidity, high hardness, and large brittleness of the molded blank), the application of the hot runner to the ceramic tube mold has some problems, such that the high temperature of the mold core gate area is uncontrollable, the surrounding high temperature is transmitted to the surface of the plastic part, and the surface of the plastic part is difficult to be uniformly cooled, so that the quality of the surface of the plastic part is affected, the dimensional accuracy of the finished product exceeds the tolerance range, the appearance does not meet the requirements of the drawing, the final product cannot meet the requirements of the design drawing, and the reject ratio of the product is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ceramic pipe mould can produce ceramic material injection moulding's ceramic pipe.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a ceramic tube mold, comprising:

the fixed die assembly comprises a fixed die base plate and a fixed die plate fixedly connected with the fixed die base plate, wherein a positioning ring penetrating through the fixed die base plate is arranged at the center of the fixed die base plate, a fixed die groove portion recessed from one side of the fixed die plate to the inside of the fixed die plate is arranged on the fixed die plate, the fixed die assembly further comprises a fixed die core accommodated in the fixed die groove portion, and the fixed die core is fixed in the fixed die plate;

the movable die assembly comprises a movable die base plate, cushion blocks correspondingly and vertically arranged on two sides of the movable die base plate, and a movable die plate fixedly connected with the movable die base plate and the cushion blocks, wherein the two cushion blocks, the movable die base plate and the movable die plate jointly enclose an accommodating space, the movable die plate is provided with a movable die groove portion recessed towards the inside of the movable die plate from one side of the movable die plate, the movable die assembly further comprises an ejection unit accommodated in the accommodating space and a movable die core accommodated in the movable die groove portion;

the guide assembly comprises a guide pillar fixed on the fixed die base plate and a guide sleeve sleeved on the guide pillar;

the fixed die assembly further comprises a hot runner plate positioned between the fixed die base plate and the fixed die plate, the ceramic tube mould also comprises a hot runner system, the hot runner system comprises a hot runner manifold plate positioned in the hot runner plate, at least one hot runner nozzle arranged in the fixed mould plate, a hot runner wiring port positioned at one side of the hot runner plate and a temperature control box connected with the hot runner wiring port, a sprue corresponding to the central position of the positioning ring is arranged on the hot runner flow distribution plate, a hot runner pipeline is arranged in the hot runner flow distribution plate, the sprue is connected with the hot runner pipeline, the movable mould core is provided with a plurality of molding cavities for molding the ceramic tube on the circumference of the hot runner nozzle, the fixed die core comprises a first fixed die core and a second fixed die core, and a column hole corresponding to the molding cavity is formed in the second fixed die core.

Further, the ceramic pipe mold further comprises a circulating water path which is located in the ceramic pipe mold and used for keeping the temperature of the ceramic pipe mold constant, and the circulating water path is annularly arranged around the molding cavity.

Furthermore, the circulating water path comprises a first circulating water path positioned in the second cavity block and a second circulating water path positioned in the cavity block.

Further, the number of the first circulation water channels and the second circulation water channels is two, and the first circulation water channels comprise a first outer circulation water channel annularly arranged in the molding cavity around the circumference of the hot runner nozzle and a first inner circulation water channel annularly arranged in the molding cavity around the circumference of the hot runner nozzle; the second circulation waterway comprises a second outer circulation waterway annularly arranged in the molding cavity around the circumference of the hot runner nozzle and a second inner circulation waterway annularly arranged in the molding cavity around the circumference of the hot runner nozzle.

Further, the number of the hot runner nozzles is 6, and the number of the molding cavities arranged on the circumference of each hot runner nozzle for molding the ceramic tubes is 8.

Further, the hot runner manifold has a hollow portion, and the hot runner plate is disposed within the hollow portion.

Further, the ejection unit comprises an ejector pin pressing plate close to the movable mold base plate, an ejector pin push plate fixedly connected with the ejector pin pressing plate, an ejector plate fixing plate fixedly connected with the ejector pin push plate, and an ejector pin penetrating through the ejector plate fixing plate and arranged towards the fixed mold assembly.

Furthermore, the ejection unit also comprises a directional assembly, and the directional assembly comprises a directional column and a directional sleeve arranged in the ejector pin push plate and the push plate fixing plate.

Further, ejecting unit still includes the reset unit, the reset unit includes the release link and overlaps and establish spring on the release link.

Furthermore, the movable die assembly also comprises a supporting rod which is fixed on the movable die base plate and is used for supporting the movable die plate.

The beneficial effects of the utility model reside in that: the ceramic tube is injection-molded by arranging the hot runner system in the mold, and in order to keep the temperature of the mold constant and uniform, the circulating water path is arranged in the mold, so that the injection molding quality of the ceramic tube is good, no defect exists, the dimensional tolerance and the appearance requirement of a finished product reach or even exceed the requirements of a drawing, the mass production of the ceramic tube is stable, and the yield of the ceramic tube is high; divide into first cover half benevolence and second cover half benevolence with the cover half benevolence, its be provided with the post hole that corresponds with the shaping die cavity in the second cover half benevolence, when the die sinking, the second cover half benevolence that is provided with circulation water route need not to remove, releases the product from the shaping die cavity through the post hole, and each subassembly cooperation of mould is good, improves the production efficiency of product.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is an overall schematic view of the present invention;

fig. 2 is a first perspective view of the present invention;

fig. 3 is a second perspective view of the present invention;

fig. 4 is a third perspective view of the present invention;

FIG. 5 is a perspective view of a gate, hot runner plate, and hot runner system;

FIG. 6 is a schematic perspective view of a core insert, a core insert and a hot runner system;

fig. 7 is an exploded view of the circulation water path, the stationary mold core, the ceramic tube and the moving mold core.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The utility model discloses a mold, this mold use hot runner technique injection moulding ceramic product, and ceramic product specifically is ceramic pipe 7, and ceramic pipe 7's structure is conventional design, no longer gives unnecessary details here.

As shown in fig. 1 to 7, the ceramic tube mold comprises a fixed mold component 1, a movable mold component 2, a fixed component 3 and a guide component 4, wherein the fixed mold component 1 is opposite to the movable mold component 2 for matching with a formed ceramic tube 7, and the guide component 4 is used for guiding the relative positions of the movable mold component 2 and the fixed mold component 1, so that no deviation is ensured to ensure the quality of the ceramic tube 7. When the ceramic tube die is used for preparing products, the fixed die assembly 1 and the movable die assembly 2 are fixed through the fixing assembly 3, so that the fixed die assembly and the movable die assembly are mutually closed, and the precision of the ceramic tube 7 is ensured. And when this ceramic tube mould need put in storage, can fix through fixed subassembly 3 fixed cover half subassembly 1 with movable mould subassembly 2 for both are closed each other, can avoid the inside original paper of ceramic tube mould to receive the damage when guaranteeing ceramic tube 7's assembly precision.

Specifically, the fixed mold assembly 1 comprises a fixed mold base plate 10, a hot runner plate 12 located below the fixed mold base plate 10, and a fixed mold plate 11 located below the hot runner plate 12. The central position of the fixed die base plate 10 is provided with a positioning ring 13 penetrating through the fixed die base plate 10, the positioning ring 13 corresponds to a gun platform on the injection molding machine in position and is used for guiding the gun platform to enable the injection molding machine to accurately inject rubber materials into the ceramic pipe mold. The fixed die plate 11 is provided with a fixed die groove portion (not shown) recessed from one side of the fixed die plate 11 to the inside of the fixed die plate 11, the fixed die assembly 1 further comprises a fixed die core 15 accommodated in the fixed die groove portion, and the fixed die core 15 is fixed in the fixed die plate 11.

The movable mould component 2 comprises a movable mould base plate 20, cushion blocks 21 which are correspondingly and vertically arranged on two sides of the movable mould base plate 20 and a movable mould plate 22 fixedly connected with the movable mould base plate 20 and the cushion blocks 21, wherein two accommodating spaces are formed by the cushion blocks 21, the movable mould base plate 20 and the movable mould plate 22 in an enclosing mode. The movable mold assembly 2 further comprises 8 support rods 23 accommodated in the accommodating space and fixed on the movable mold base plate 20, and the support rods 23 are used for supporting the movable mold plate 22 and preventing the movable mold plate 22 from deforming. A movable mold recess (not shown) in which the movable mold 22 is recessed from the movable mold 22 toward the inside of the movable mold 22. The moving die component 2 further comprises an ejection unit accommodated in the accommodating space and a moving die core 24 accommodated in the groove portion of the moving die, the moving die base plate 20, the cushion block 21 and the moving die plate 22 are sequentially arranged from bottom to top, and the fixed die base plate 10, the hot runner plate 12 and the fixed die plate 11 are sequentially arranged from top to bottom, so that the fixed die component 1 and the moving die component 2 can be relatively matched.

The ceramic tube mold further includes a hot runner system including a hot runner manifold 51 located in the hot runner plate 12, at least one hot runner nozzle 52 provided in the stationary platen 11, a hot runner junction port 53 located at one side of the hot runner plate 12, and a temperature controlled box (not shown) connected to the hot runner junction port 53. The hot runner plate 12 has a hollow portion 121, the hollow portion 121 has a regular hexagonal structure, the hot runner manifold 51 is disposed in the hollow portion 121, a groove 122 communicating with the hollow portion 121 is formed at one side of the hot runner plate 12, and the hot runner connection port 53 is located at one side of the groove 122. The ceramic tube mold is connected through a hot runner connection port 53 to a temperature controlled box which is connected to a power supply (not shown) which controls the temperature of the ceramic tube mold. The number of the hot runner nozzles 52 is 6, and the hot runner nozzles are uniformly distributed on the circumference of the hot runner manifold 51. The hot runner manifold 51 is provided with a gate 14 corresponding to the central position of the positioning ring 13, and the gate 14 is used for guiding the injection molding liquid to enter the ceramic tube mold. The hot runner manifold 51 is internally provided with a hot runner pipeline (not shown), the gate 14 is connected with the hot runner pipeline, and the hot runner nozzle 52 is also connected with the hot runner pipeline, specifically, the hot runner pipeline is used as a main runner nozzle (not shown) from the middle position of one side of the hot runner manifold 51 close to the gate 14, the main runner nozzle is connected with the gate 14, the other side of the hot runner manifold 51 is provided with injection point nozzles (not shown), the number of the injection point nozzles is 6, the injection point nozzles are connected with the hot runner nozzles 52 in a one-to-one correspondence manner, and the hot runner manifold 51 distributes the injection liquid transmitted by the main runner nozzle to each injection point nozzle through the hot runner pipeline. Indeed, in other embodiments, the number of hot runner nozzles 52 may be other, and is not limited herein, as the case may be.

The moving die core 24 is provided with a plurality of molding cavities 241 for molding the ceramic tubes 7 on the circumference of the hot runner nozzle 52, and the number of the molding cavities 241 arranged on the circumference of each hot runner nozzle 52 is 8. However, in other embodiments, the number of the molding cavities 241 disposed on the circumference of each hot runner nozzle 52 may be other, and is not particularly limited herein, depending on the actual situation. The cavity insert 15 includes a first cavity insert 151 and a second cavity insert 152, the second cavity insert 152 is provided with a column hole 1521 corresponding to the molding cavity 241, and the molded ceramic tube 7 passes through the corresponding column hole 1521 when being pushed out of the molding cavity 241.

The ceramic pipe mold is used for injection molding of the ceramic pipe 7 by the hot runner system, in order to rapidly cool and mold the molded ceramic pipe 7 and keep the temperature of the whole ceramic pipe mold constant, a circulating water path is further arranged in the ceramic pipe mold and surrounds the molding cavity 241 in an annular manner. Specifically, the circulating water paths include a first circulating water path 61 located in the second cavity block 152 and a second circulating water path 62 located in the cavity block 24, the number of the first circulating water path 61 and the second circulating water path 62 is two, and the first circulating water path 61 includes a first external circulating water path 611 annularly arranged around the molding cavity 241 of the circumference of the hot runner nozzle 52 and a first internal circulating water path 612 annularly arranged around the molding cavity 241 of the circumference of the hot runner nozzle 52; the second circulation water path 62 includes a second outer circulation water path 621 annularly provided around the molding cavity 241 of the circumference of the hot runner nozzle 52 and a second inner circulation water path 622 annularly provided around the molding cavity 241 of the circumference of the hot runner nozzle 52. The first circulation water path 61 includes a water inlet end 613 and a water outlet end 614 disposed on the fixed mold plate 11, the water inlet end 613 and the water outlet end 614 are configured to be in butt joint with external water to form circulation condensed water, the second circulation water path 62 includes a water inlet end 623 and a water outlet end 624 disposed on the movable mold plate, the water inlet end 623 and the water outlet end 624 are configured to be in butt joint with external water to form circulation condensed water, and in this embodiment, the numbers of the water inlet end and the water outlet end of one circulation water path are not limited.

The ejection unit comprises an ejector pin pressing plate 251 arranged close to the movable mold base plate 20, an ejector pin push plate 252 fixedly connected with the ejector pin pressing plate, a push plate fixing plate 26 fixedly connected with the ejector pin push plate 252, and an ejector pin 27 penetrating through the push plate fixing plate 26 and arranged towards the fixed mold assembly 1. The main purpose of the ejector pin holding plate 251 is to fix the ejector pins 27, so that the whole ejection unit is more stable. An ejector rod (not shown) is arranged on the injection molding machine, an ejector rod through hole (not shown) matched with the ejector rod is arranged on the movable mold base plate 20, the ejector rod penetrates through the ejector rod through hole and is abutted against the ejector pin pressing plate 251, and therefore when the injection molding machine pushes the ejector rod, the ejector rod is pushed, and the ejector pin pressing plate 251, the ejector pin push plate 252 and the push plate fixing plate 26 are sequentially pushed to move along the movement direction of the ejector rod together. The ejector plate fixing plate 26, the ejector pin pressing plate 251 and the ejector pin ejector plate 252 also collectively position one end of the ejector pin 27 so that the ejector pin 27 can be pushed by the ejector pin to move toward the fixed mold assembly 1. The ejector pin 27 is matched with the ceramic tube 7 to be injected, and the ceramic tube 7 can be ejected out of the movable mold core 24 after the mold of the ceramic tube mold is opened. The ejection unit further includes an orientation assembly 29 that extends through the ejector pin platen 251, ejector pin push plate 252, and push plate retainer plate 26. The orientation assembly 29 includes orientation posts 291 and orientation sleeves 292 disposed within the ejector pin press plate 251, ejector pin push plate 252 and push plate retainer plate 26. The number of the orientation columns 291 is 4, and the orientation columns are uniformly distributed at the corners of the movable mold base plate 20. The orientation column 291 is engaged with the movable mold base plate 20 at one end and freely extends into the movable mold plate 22 at one end. When the push rod is pushed and pushes the thimble push plate 252 and the push plate fixing plate 26 to move together along the moving direction of the push rod in turn, the orientation component 29 fixes the thimble push plate 252 and the push plate fixing plate 26 to move simultaneously.

The ejection unit further comprises a reset unit 28, the reset unit 28 comprises a reset rod 281 and springs 282 sleeved on the reset rod 281, the number of the reset rod 281 and the number of the springs 282 are set to be 4, and the springs are uniformly distributed on 4 corners of the push plate fixing plate 26. One end of the reset rod 281 is limited between the push plate fixing plate 26 and the thimble push plate 252, the other end of the reset rod 281 freely penetrates through the movable mold plate 22 and abuts against the fixed mold plate 11, and the reset rod 281 is arranged around the thimble 27, so that the reset rod 281 can guide the push plate fixing plate 26, the thimble pressing plate 251, the thimble push plate 252 and the thimble 27, and the thimble 27 is prevented from moving obliquely and being damaged. The reset rod 281 may assist in pushing the stationary platen 11 when the ejector pin 27 pushes the product. The spring 282 has a portion that extends into the movable platen 22 to limit its position relative to the movable platen 22, and another portion that is disposed to protrude from the movable platen 22 and the protruding portion abuts against the push plate fixing plate 26. When the ceramic tube mold is opened, the ejector pins 27 are pushed out by ejector pins of the injection molding machine, the product is taken out, the ejector pins return, the ejector units are reset by the elastic force of the springs 282, and the ceramic tube mold is closed. However, when the spring 282 fails or the reset fails due to external reasons, the ceramic tube mold is clamped, and the reset rod 281 can directly abut against the fixed mold plate 11, so that the ejector pin 27 is prevented from being directly acted by the clamping force, and the ejector pin 27 is protected from being damaged.

The utility model discloses in, when the fort of injection molding machine with the material through runner 14 injection hot runner system, when getting into molding cavity 241 through hot runner nozzle 52, can the shaping ceramic pipe 7, open the mould, wherein be provided with first circulation water route 61 on the second die core 152, so second die core 152 keeps motionless, the post hole 1521 through second die core 152 in the rethread ejecting unit follows molding cavity 241 with ceramic pipe 7 ejecting, accomplish whole process of moulding plastics so far.

The guide assembly 4 includes a guide post 41 and a guide sleeve 42 sleeved on the guide post. The number of the guide columns 41 is 4, the guide columns are uniformly distributed at 4 corners of the fixed die base plate 10 and are limited between the fixed die base plate 10 and the injection molding machine. One end of the guide post 41 is clamped in the fixed mold base plate 10, and the other end of the guide post can freely extend into the cushion block 21. The fixed die assembly 1 and the movable die assembly 2 are both provided with guide sleeves 42, and the guide sleeves 42 are correspondingly matched with the guide columns 41 and are uniformly distributed on 4 corners of the fixed die plate 11 and the movable die plate 22. When the ceramic tube mold is opened, the guide post 41 is separated from the guide sleeve 42 in the movable mold plate 22, the movable mold component 2 is far away from the fixed mold component 1, when the ceramic tube mold is closed, the guide post 41 penetrates the guide sleeve 42 in the movable mold plate 22, and the movable mold component 2 and the fixed mold component 1 form a cavity for molding the ceramic tube 7.

The fixed assembly 3 comprises a fixed strip 31, fixing holes are formed in two ends of the fixed strip 31, and screws 32 or bolts 32 fix the fixed strip 31 on the fixed template 11 and the movable template 22 through the two fixing holes, so that the relative positions of the fixed mold assembly 1 and the movable mold assembly 2 are guaranteed to be unchanged.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A ceramic tube mold, comprising:

the guide component comprises a guide post fixed on the fixed die base plate and a guide sleeve sleeved on the guide post,

it is characterized in that the fixed die component also comprises a hot runner plate positioned between the fixed die base plate and the fixed die plate, the ceramic tube mould also comprises a hot runner system, the hot runner system comprises a hot runner manifold plate positioned in the hot runner plate, at least one hot runner nozzle arranged in the fixed mould plate, a hot runner wiring port positioned at one side of the hot runner plate and a temperature control box connected with the hot runner wiring port, a sprue corresponding to the central position of the positioning ring is arranged on the hot runner flow distribution plate, a hot runner pipeline is arranged in the hot runner flow distribution plate, the sprue is connected with the hot runner pipeline, the movable mould core is provided with a plurality of molding cavities for molding the ceramic tube on the circumference of the hot runner nozzle, the fixed die core comprises a first fixed die core and a second fixed die core, and a column hole corresponding to the molding cavity is formed in the second fixed die core.

2. The ceramic tube mold of claim 1, further comprising a circulation waterway within the ceramic tube mold for maintaining a constant temperature of the ceramic tube mold, the circulation waterway being annularly disposed around the molding cavity.

3. The ceramic tube mold of claim 2, wherein the circulation water path comprises a first circulation water path located in the second cavity block and a second circulation water path located in the cavity block.

4. A ceramic tube mold as claimed in claim 3, wherein the first circulation water path and the second circulation water path are each two in number, and the first circulation water path includes a first outer circulation water path annularly disposed in the molding cavity around the circumference of the hot runner nozzle and a first inner circulation water path annularly disposed in the molding cavity around the circumference of the hot runner nozzle; the second circulation waterway comprises a second outer circulation waterway annularly arranged in the molding cavity around the circumference of the hot runner nozzle and a second inner circulation waterway annularly arranged in the molding cavity around the circumference of the hot runner nozzle.

5. A ceramic tube mold as claimed in claim 1, wherein said hot runner nozzles are 6 in number, and each of said hot runner nozzles is provided with 8 molding cavities in the circumference thereof for molding the ceramic tubes.

6. A ceramic tube mold as claimed in claim 1, wherein said hot runner plate has a hollow portion, said hot runner manifold being disposed within said hollow portion.

7. The ceramic tube mold according to claim 1, wherein the ejection unit includes an ejector pin pressing plate disposed adjacent to the movable mold base plate, an ejector pin pushing plate fixedly connected to the ejector pin pressing plate, an ejector pin fixing plate fixedly connected to the ejector pin pushing plate, and an ejector pin penetrating the ejector pin fixing plate and disposed toward the fixed mold assembly.

8. The ceramic tube mold of claim 7, wherein the ejection unit further comprises an orientation assembly, the orientation assembly comprising an orientation post and an orientation sleeve disposed within the ejector push plate and the push plate retainer plate.

9. The ceramic tube mold of claim 8, wherein the ejection unit further comprises a return unit, the return unit comprising a return rod and a spring disposed on the return rod.

10. The ceramic tube mold as claimed in claim 1, wherein the movable mold assembly further comprises a support rod fixed to the movable mold base plate for supporting the movable mold plate.