CN213082180U

CN213082180U - Special die for polyethylene pipe production

Info

Publication number: CN213082180U
Application number: CN202021516658.5U
Authority: CN
Inventors: 唐木正; 蓝哲; 张云爱
Original assignee: Tianjin Senpu Pipe Co ltd
Current assignee: Tianjin Senpu Pipe Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-04-30
Anticipated expiration: 2030-07-28

Abstract

The utility model discloses a be used for polyethylene pipe production special mould, including last module and lower module, go up the inside of module and seted up the first groove of moulding plastics, the fixed side fixture block that is equipped with mutual symmetry of the notch department in the first groove of moulding plastics, the first semicircular arc cardboard of one end fixedly connected with in the first groove of moulding plastics, go up the fixed first semicircular arc connecting plate that is equipped with in the one end outside that first semicircular arc cardboard was kept away from to the module, a plurality of first screws have been seted up to the inside evenly distributed of first semicircular arc connecting plate. Through at last module and lower module inside respectively seted up first groove and the second of moulding plastics and mould plastics the groove, the notch punishment in first groove and the second of moulding plastics groove do not is equipped with side fixture block and side draw-in groove, and the inside in first groove and the second of moulding plastics groove is equipped with the center pillar, make this mould can carry out the dismouting when producing tubular product, thereby make the tubular product after the shaping be convenient for take out, be difficult to cause the damage to tubular product, and can carry out the tubular product production of different thickness through the center pillar of changing different diameters.

Description

Special die for polyethylene pipe production

Technical Field

The utility model relates to a tubular product production mould field, in particular to be used for polyethylene pipe production special mould.

Background

Polyethylene pipes have a wide range of applications, ranging from small cross-section yellow pipes for natural gas to thick-walled black pipes of 48in diameter for industrial and urban pipes, large diameter hollow-walled pipes are rapidly growing as substitutes for concrete-made storm drains and other sewer lines, have excellent resistance to most domestic and industrial chemicals, and some types of chemicals are chemically corrosive, such as corrosive oxidants (concentrated nitric acid), aromatic hydrocarbons (xylene) and halogenated hydrocarbons (carbon tetrachloride), have excellent electrical properties, particularly high dielectric strength, making them well suited for use in wire and cable applications, and have excellent impact resistance at medium to high molecular weight grades, even at low temperatures of-40F;

when processing polyethylene pipe, the used polyethylene pipe mould is generally cast and formed integrally, and the mould can not be disassembled, so that the formed polyethylene pipe is not easy to take out from the mould, the demoulding efficiency is low, and the PVC pipe is easy to damage when the formed polyethylene pipe is taken out, the use is inconvenient, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for polyethylene pipe production special mould to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a special die for polyethylene pipe production comprises an upper die block and a lower die block, wherein a first injection molding groove is formed in the upper die block, side clamping blocks which are mutually symmetrical are fixedly arranged at the notch of the first injection molding groove, a first semicircular arc clamping plate is fixedly connected to one end of the first injection molding groove, a first semicircular arc connecting plate is fixedly arranged on the outer side of one end, away from the first semicircular arc clamping plate, of the upper die block, and a plurality of first screw holes are uniformly distributed in the first semicircular arc connecting plate;

a second injection molding groove is formed in the lower module, a side clamping groove matched with the side clamping block is formed in the notch of the second injection molding groove, a second semicircular clamping plate is fixedly connected to one end of the second injection molding groove, a second semicircular connecting plate is fixedly arranged on the outer side of one end, away from the second semicircular clamping plate, of the lower module, and a plurality of second screw holes are uniformly distributed in the second semicircular connecting plate;

the first inside in groove and the second of moulding plastics is equipped with the center pillar, the one end outside of center pillar set up with the annular clamping groove of first semicircle cardboard and second semicircle cardboard looks adaptation, the other end fixedly connected with annular connecting plate of center pillar, one side that the center pillar was kept away from to the annular connecting plate is fixed and is equipped with injection molding and third screw, the injection molding is located one side middle part that the center pillar was kept away from to the annular connecting plate, the third screw is corresponding with the position of first screw and second screw, and is a plurality of all run through between third screw and first screw and the second screw has the bolt, the annular connecting plate runs through the bolt through third screw and first screw and second screw, closely laminates with first semicircle connecting plate and second semicircle connecting plate.

Preferably, a thread groove is formed in the middle of one side, away from the annular connecting plate, of the injection molding part, a shunting-type injection molding channel communicated with the thread groove is formed in the injection molding part, and the shunting-type injection molding channel is communicated with the first injection molding groove and the second injection molding groove.

Preferably, the one end embedding that annular connecting plate was kept away from to the center pillar has inlet channel and liquid outlet pipe, spiral cooling tank, inlet channel and liquid outlet channel have been seted up to the center pillar inside, inlet channel and liquid outlet channel communicate with inlet channel and liquid outlet pipe respectively each other, spiral cooling tank's both ends communicate with inlet channel and liquid outlet channel respectively each other.

Preferably, first groove, first semicircle cardboard and the first semicircle connecting plate of moulding plastics are moulded plastics the groove with the second respectively, second semicircle cardboard and second semicircle connecting plate are symmetrical about the center pillar each other, and through the inside interconnect of side fixture block joint in the side draw-in groove, closely laminate.

Preferably, a damping effect is achieved between the annular clamping groove and the first semicircular arc clamping plate and between the annular clamping groove and the second semicircular arc clamping plate.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a first injection molding groove and a second injection molding groove are respectively arranged in the upper module and the lower module, side clamping blocks and side clamping grooves are respectively arranged at the notch parts of the first injection molding groove and the second injection molding groove, and the center posts are arranged in the first injection molding groove and the second injection molding groove, so that the die can be disassembled and assembled when producing pipes, thereby the formed pipes can be conveniently taken out, the pipes are not easy to be damaged, and the pipes with different thicknesses can be produced by replacing the center posts with different diameters;

2. the utility model discloses an one end embedding of keeping away from annular connecting plate at the center pillar has feed liquor pipeline and liquid outlet pipe, and spiral cooling tank, inlet channel and liquid outlet channel have been seted up to the center pillar is inside for the device can reduce the fashioned time of tubular product, promotes production efficiency.

Drawings

Fig. 1 is a schematic view of the three-dimensional disassembly structure of the present invention.

Fig. 2 is a schematic view of the cross-sectional structure of the present invention.

Fig. 3 is an enlarged schematic structural view of a position a in fig. 1 according to the present invention.

In the figure: 1. an upper module; 11. a first injection molding groove; 12. side clamping blocks; 13. a first semicircular arc clamping plate; 14. a first semicircular arc connecting plate; 141. a first screw hole; 2. a lower module; 21. a second injection molding groove; 22. a side clamping groove; 23. a second semi-arc clamping plate; 24. a second semi-circular arc connecting plate; 241. a second screw hole; 3. a center pillar; 31. an annular neck; 32. an annular connecting plate; 321. an injection molded part; 3211. a thread groove; 3212. a split-flow injection molding channel; 322. a third screw hole; 33. a spiral cooling tank; 4. a bolt; 5. a liquid inlet pipeline; 51. a liquid inlet channel; 6. a liquid outlet pipeline; 61. a liquid outlet channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a special mould for polyethylene pipe production as shown in figures 1-3, which comprises an upper module 1 and a lower module 2, wherein a first injection molding groove 11 is arranged inside the upper module 1, mutually symmetrical side clamping blocks 12 are fixedly arranged at the notch of the first injection molding groove 11, one end of the first injection molding groove 11 is fixedly connected with a first semicircular arc clamping plate 13, a first semicircular arc connecting plate 14 is fixedly arranged outside one end of the upper module 1 away from the first semicircular arc clamping plate 13, a plurality of first screw holes 141 are uniformly distributed inside the first semicircular arc connecting plate 14, and the upper module 1 and the lower module 2 can be randomly disassembled and assembled;

the lower module 2 is internally provided with a second injection molding groove 21, a side clamping groove 22 matched with the side clamping block 12 is arranged at the notch of the second injection molding groove 21, one end of the second injection molding groove 21 is fixedly connected with a second semi-circular arc clamping plate 23, a second semi-circular arc connecting plate 24 is fixedly arranged at the outer side of one end of the lower module 2 away from the second semi-circular arc clamping plate 23, a plurality of second screw holes 241 are uniformly distributed in the second semi-circular arc connecting plate 24, when the side clamping block 12 is clamped in the side clamping groove 22, the first injection molding groove 11 and the second injection molding groove 21 are mutually communicated to form a pipe mold inner cavity, the first semi-circular arc clamping plate 13 is tightly jointed with the second semi-circular arc clamping plate 23 to form a circular clamping plate matched with the circular clamping groove 31, the first semi-circular arc connecting plate 14 is tightly jointed with the second semi-circular arc connecting plate 24 to form a circular, the assembled pipe is fixed through the bolts 4, so that the die can be disassembled and assembled when the pipe is produced, the formed pipe is convenient to take out, and the pipe is not easy to damage;

the first injection molding groove 11 and the second injection molding groove 21 are internally provided with a center pillar 3, one end of the center pillar 3 is provided with an annular clamping groove 31 matched with the first semicircular arc clamping plate 13 and the second semicircular arc clamping plate 23 at the outer side, the other end of the center pillar 3 is fixedly connected with an annular connecting plate 32, one side of the annular connecting plate 32 far away from the center pillar 3 is fixedly provided with an injection molding part 321 and a third screw hole 322, the injection molding part 321 is positioned in the middle part of one side of the annular connecting plate 32 far away from the center pillar 3, the third screw hole 322 corresponds to the positions of the first screw hole 141 and the second screw hole 241, bolts 4 penetrate between the plurality of third screw holes 322 and the first screw hole 141 and the second screw hole 241, the annular connecting plate 32 penetrates through the bolts 4 with the first screw hole 141 and the second screw hole 241 through the third screw hole 322 and is tightly attached to the first semicircular arc connecting plate 14 and the second semicircular arc connecting plate 24, the production of pipes of different thicknesses can be performed by replacing the center pillars 3 of different diameters.

The middle part of one side of the injection molding piece 321, which is far away from the annular connecting plate 32, is provided with a thread groove 3211, a split-flow injection molding channel 3212 communicated with the thread groove 3211 is formed in the injection molding piece 321, the split-flow injection molding channel 3212 is communicated with the first injection molding groove 11 and the second injection molding groove 21, and injection molding is performed on the inner cavity of the mold through the thread groove 3211 and the split-flow injection molding channel 3212.

The one end embedding that annular connecting plate 32 was kept away from to center pillar 3 has inlet channel 5 and liquid outlet pipe 6, spiral cooling tank 33 has been seted up to center pillar 3 inside, inlet channel 51 and liquid outlet pipe 61 communicate with inlet channel 5 and liquid outlet pipe 6 respectively each other, spiral cooling tank 33's both ends communicate with inlet channel 51 and liquid outlet pipe 61 respectively each other, inlet channel 5 carries the coolant liquid to inlet channel 51, the coolant liquid enters into spiral cooling tank 33 through inlet channel 51, through liquid outlet pipe 61 and liquid outlet pipe 6 discharge behind spiral cooling tank 33, the coolant liquid makes tubular product cooling shaping with higher speed, make the device can reduce the fashioned time of tubular product, promote production efficiency.

First groove 11, the first semicircle cardboard 13 of moulding plastics and the first semicircle connecting plate 14 of moulding plastics respectively with the second groove 21, the mutual symmetry about center pillar 3 of moulding plastics of second semicircle cardboard 23 and second semicircle connecting plate 24, and through the inside interconnect of side fixture block 12 joint in side draw-in groove 22, closely laminate, further explain the relation of connection of going up module 1 and lower module 2.

The damping effect is provided between the ring-shaped clamping groove 31 and the first semi-circular arc clamping plate 13 and the second semi-circular arc clamping plate 23, so that sufficient friction force exists between the first semi-circular arc clamping plate 13 and the second semi-circular arc clamping plate 23 and the ring-shaped clamping groove 31, and the position deviation can not occur during injection molding.

The utility model discloses the theory of operation: the upper module 1 and the lower module 2 can be disassembled and assembled at will, when the side clamping block 12 is clamped in the side clamping groove 22, the first injection molding groove 11 and the second injection molding groove 21 are communicated with each other to form an inner cavity of a pipe mold, the first semicircular arc clamping plate 13 is tightly attached to the second semicircular arc clamping plate 23 to form a circular clamping plate matched with the annular clamping groove 31, the first semicircular arc connecting plate 14 is tightly attached to the second semicircular arc connecting plate 24 to form a circular plate with the same outer diameter as that of the annular connecting plate 32, the assembled and fixed parts are fixed through the bolts 4, so that the mold can be disassembled and assembled during pipe production, the formed pipe is convenient to take out, the pipe is not easy to damage, the center columns 3 serve as fillers in the inner cavity of the mold, and pipe production with different thicknesses can be carried out by replacing the center columns 3 with different;

feed liquor pipeline 5 carries the coolant liquid to feed liquor channel 51, and the coolant liquid passes through feed liquor channel 51 and enters into spiral cooling tank 33 in, through drain channel 61 and outlet pipe way 6 discharge behind spiral cooling tank 33, the coolant liquid makes tubular product cooling shaping with higher speed for the device can reduce the fashioned time of tubular product, promotes production efficiency.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a be used for polyethylene pipe production special mould, includes module (1) and lower module (2), its characterized in that: a first injection molding groove (11) is formed in the upper module (1), symmetrical side clamping blocks (12) are fixedly arranged at the notch of the first injection molding groove (11), a first semicircular arc clamping plate (13) is fixedly connected to one end of the first injection molding groove (11), a first semicircular arc connecting plate (14) is fixedly arranged on the outer side of one end, away from the first semicircular arc clamping plate (13), of the upper module (1), and a plurality of first screw holes (141) are uniformly distributed in the first semicircular arc connecting plate (14);

a second injection molding groove (21) is formed in the lower module (2), a side clamping groove (22) matched with the side clamping block (12) is formed in the notch of the second injection molding groove (21), a second semicircular arc clamping plate (23) is fixedly connected to one end of the second injection molding groove (21), a second semicircular arc connecting plate (24) is fixedly arranged on the outer side of one end, away from the second semicircular arc clamping plate (23), of the lower module (2), and a plurality of second screw holes (241) are uniformly distributed in the second semicircular arc connecting plate (24);

the inside in first groove (11) of moulding plastics and second groove (21) of moulding plastics is equipped with center pillar (3), ring groove (31) with first semicircle cardboard (13) and second semicircle cardboard (23) looks adaptation is seted up in the one end outside of center pillar (3), the other end fixedly connected with annular connecting plate (32) of center pillar (3), one side that center pillar (3) were kept away from in annular connecting plate (32) is fixed and is equipped with injection molding (321) and third screw (322), injection molding (321) are located one side middle part that center pillar (3) were kept away from in annular connecting plate (32), third screw (322) are corresponding with the position of first screw (141) and second screw (241), and a plurality of all run through between third screw (322) and first screw (141) and second screw (241) bolt (4), annular connecting plate (32) have run through bolt (4) through third screw (322) and first screw (141) and second screw (241) And is tightly attached to the first semicircular arc connecting plate (14) and the second semicircular arc connecting plate (24).

2. The special mold for producing polyethylene pipes as claimed in claim 1, wherein: thread grooves (3211) are formed in the middle of one side, away from the annular connecting plate (32), of the injection molding piece (321), a shunting injection molding channel (3212) communicated with the thread grooves (3211) is formed in the injection molding piece (321), and the shunting injection molding channel (3212) is communicated with the first injection molding groove (11) and the second injection molding groove (21).

3. The special mold for producing polyethylene pipes as claimed in claim 1, wherein: the one end embedding that annular connecting plate (32) were kept away from in center pillar (3) has inlet channel (5) and goes out liquid pipeline (6), spiral cooling tank (33), inlet channel (51) and liquid outlet channel (61) have been seted up to center pillar (3) inside, inlet channel (51) and liquid outlet channel (61) communicate with inlet channel (5) and liquid outlet channel (6) each other respectively, the both ends of spiral cooling tank (33) communicate with inlet channel (51) and liquid outlet channel (61) each other respectively.

4. The special mold for producing polyethylene pipes as claimed in claim 1, wherein: first groove (11), first semicircle cardboard (13) and first semicircle connecting plate (14) of moulding plastics respectively with the second mould plastics groove (21), second semicircle cardboard (23) and second semicircle connecting plate (24) symmetry each other about center pillar (3), and through side fixture block (12) joint in side draw-in groove (22) inside interconnect, closely laminate.

5. The special mold for producing polyethylene pipes as claimed in claim 1, wherein: and a damping effect is achieved between the annular clamping groove (31) and the first semicircular arc clamping plate (13) and the second semicircular arc clamping plate (23).