CN109501213B

CN109501213B - High-efficient heat dissipation type blow mold

Info

Publication number: CN109501213B
Application number: CN201811390230.8A
Authority: CN
Inventors: 夏敏月; 梁格
Original assignee: Linyi Yingliwei Plastics Co ltd
Current assignee: Linyi yingliwei Plastics Co.,Ltd.
Priority date: 2018-11-21
Filing date: 2018-11-21
Publication date: 2021-04-16
Anticipated expiration: 2038-11-21
Also published as: CN109501213A

Abstract

The invention relates to the technical field of plastic part production and processing, in particular to a high-efficiency heat-dissipation type blow molding die which comprises an upper die structure, a lower die structure, a cooling structure, a guide pillar structure, a guide sleeve structure, a rotating structure and an accelerating structure, wherein the upper die structure is provided with a guide groove; all be equipped with cooling structure in the inside of last mode structure and lower mode structure, rotate in cooling structure's inside and be connected with structure with higher speed, through the setting of structure with higher speed, can accelerate the velocity of flow of the inside water of die holder, make the mould inside can reach better heat dissipation and cooling effect, the structure provides power through rotating structure with higher speed, rotating structure carries out work through the extrusion between two moulds, when two moulds are closed promptly, the inside velocity of flow of cooling structure accelerates, can reach and carry out the during operation at the mould, velocity of flow just can accelerate, when the mould is out of work, velocity of flow is normal, reach the effect of water economy resource.

Description

High-efficient heat dissipation type blow mold

Technical Field

The invention relates to the technical field of plastic part production and processing, in particular to a high-efficiency heat-dissipation type blow molding die.

Background

Blow molding, also known as blow molding, is a rapidly developing plastic processing method. The blow molding process began during world war ii for the production of low density polyethylene vials. In the late 50 s, the blow molding technology has been widely used with the advent of high density polyethylene and the development of blow molding machines. The volume of the hollow container can reach thousands of liters, and computer control is adopted in some production. Suitable plastics for blow molding are polyethylene, polyvinyl chloride, polypropylene, polyester, etc., and the resulting hollow containers are widely used as industrial packaging containers. Blow molding can be classified into extrusion blow molding and injection blow molding according to the parison making method, and newly developed are multilayer blow molding and stretch blow molding. The mold is indispensable in the blow molding production process, so that the blow mold is widely applied to the production process of plastic parts.

However, the traditional blow molding mold is only provided with a water inlet and a water outlet in the use process, and the heat dissipation and cooling of the mold are slow. In view of this, the invention provides an efficient heat dissipation type blow mold, which has the following characteristics:

(1) according to the high-efficiency heat dissipation type blow molding die, the cooling structures are arranged inside the upper die structure and the lower die structure, the accelerating structures are rotatably connected inside the cooling structures, the flow velocity of water inside the die holder can be accelerated through the arrangement of the accelerating structures, so that the inside of the die can achieve better heat dissipation and cooling effects, the accelerating structures provide power through the rotating structures, and the rotating structures work through extrusion between the two dies, namely when the two dies are closed, the flow velocity of water inside the cooling structures is accelerated, the water velocity can be accelerated when the dies work, and when the dies do not work, the water velocity is normal, so that the effect of saving water resources is achieved.

(2) According to the efficient heat dissipation type blow molding die, the four guide pillar structures which are arranged in pairwise symmetry with respect to the central line of the upper die structure are arranged on the upper die structure, the four guide sleeve structures which are arranged in pairwise symmetry with respect to the central line of the lower die structure are arranged on the lower die structure, and through the matched use of the guide pillar structures and the guide sleeve structures, when a little deviation occurs between the upper die structure and the lower die structure, the guide pillar structures can automatically perform error compensation, so that the die is prevented from being damaged, a better lubricating effect can be achieved, the die works more smoothly, and the service life of the die is prolonged.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a high-efficiency heat-dissipation type blow molding die, wherein cooling structures are arranged inside an upper die structure and a lower die structure, an accelerating structure is rotatably connected inside the cooling structures, the flow velocity of water inside a die holder can be accelerated through the arrangement of the accelerating structure, so that the inside of the die can achieve better heat dissipation and cooling effects, the accelerating structure provides power through the rotating structure, the rotating structure works through extrusion between two dies, namely when the two dies are closed, the flow velocity of the water inside the cooling structure is accelerated, the water velocity can be accelerated when the dies work, when the dies do not work, the water velocity is normal, the effect of saving water resources is achieved, four guide pillar structures which are symmetrically arranged in pairs relative to the central line of the upper die structure are arranged on the upper die structure, four guide sleeve structures which are symmetrically arranged in pairs relative to the central line of the lower die structure are arranged on the lower, through the cooperation use of guide pillar structure and guide pin bushing structure, can appear when a little deviation at last mode structure and lower mode structure, the guide pillar structure can carry out error compensation automatically, prevents that the mould from damaging, can also reach better lubricated effect, and mould work is more smooth and easy, improves mould life.

The technical scheme adopted by the invention for solving the technical problems is as follows: a high-efficiency heat dissipation type blow molding mold comprises an upper mold structure, a lower mold structure, a cooling structure, a guide pillar structure, a guide sleeve structure, a rotating structure and an accelerating structure; the bottom end of the upper die structure for forming the plastic part is provided with the lower die structure matched with the upper die structure, and one end of the upper die structure is provided with the guide pillar structure capable of guiding the upper die structure; the guide sleeve structure capable of guiding the lower die structure is arranged at one end of the lower die structure, and the cooling structures capable of cooling and radiating the plastic piece formed by blow molding are arranged in the upper die structure and the lower die structure; go up the die structure with the inside of lower die structure all is equipped with can with the water of cooling structure's inside accelerates the structure with higher speed, go up the die structure with the inside of lower die structure all is equipped with and is used for giving the structure provides power with higher speed the rotating-structure.

Specifically, go up the die structure and include upper die base and mould core, the upper die base is the rectangle structure, the inside of upper die base is equipped with go up the mould core.

Specifically, the lower die structure comprises a lower die base and a lower die core, the lower die base is arranged at one end of the upper die base, and the lower die core is arranged inside the lower die base.

Specifically, the guide pillar structures are four, the four guide pillar structures are symmetrically distributed about the central line of the upper die base in pairs, the four guide pillar structures all comprise guide pillar bodies, movable grooves and rotating beads, the rotating beads are spherical and are rotatably connected inside the upper die base, the upper die base is provided with the circular movable grooves, one ends of the rotating beads are fixed on the guide pillar bodies of the cylindrical structures, the guide pillar bodies penetrate through the movable grooves, the diameters of the movable grooves are larger than those of the guide pillar bodies, and the diameters of the movable grooves are smaller than the maximum diameter of the rotating beads.

Specifically, the guide sleeve structure is four, the four guide sleeve structures are symmetrically distributed about a central line of the lower die holder in pairs, the four guide sleeve structures all comprise a guide sleeve body, a first spring, an oil storage bin, oil ducts, balls and a top plate, the guide sleeve body is fixed inside the lower die holder, the top end of the guide sleeve body is of a horn-shaped structure, the oil storage bin is arranged inside the guide sleeve body, the top plate is connected with the oil storage bin in a sliding mode, the first spring is connected between the top plate and the guide sleeve body, the balls are arranged on the guide sleeve body in a rotating mode in the circumferential direction inside the guide sleeve body, and the oil ducts which are S-shaped are arranged inside the guide sleeve body.

Specifically, the rotating structure comprises a sliding block, a second spring, a pushing rod, a movable block, a fixed groove, a rotating rod, a rotary disk and a fixed disk, the rectangular sliding block is slidably connected inside the lower die holder, the second spring is fixed between the sliding block and the lower die holder, one end of the sliding block close to the second spring is used for fixing the pushing rod, the pushing rod is slidably connected with the lower die holder, one end of the pushing rod, which is far away from the sliding block, is used for fixing the movable block, the arc-shaped fixed groove is arranged inside the movable block, the movable block is slidably connected with the lower die holder, the rotating rod is rotatably connected inside the movable block, one end of the rotating rod, which is far away from the movable block, is rotatably connected with the rotary disk, the fixed disk is arranged at one end of the rotary disk, and is rotatably connected with the rotary disk which is fixedly connected with the, and the rotating point of the rotating rod and the rotating disc is not on the center of the rotating disc.

Specifically, the structure includes pivot and blade with higher speed, the pivot is fixed in the central point of carousel puts, the outside of pivot is that annular array distributes has a plurality ofly the blade, just the blade is sickle column structure.

Specifically, the cooling structure includes water inlet, inlet channel, play water course and delivery port, the water inlet is located the one end of die holder, the inside of die holder is equipped with and is continuous S-shaped structure the inlet channel, the inside of die holder is established and is continuous S-shaped structure the play water course, the die holder deviates from the one end of water inlet is equipped with the delivery port, just the inlet channel with it communicates with each other to go out the water course.

The invention has the beneficial effects that:

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic overall view of a preferred embodiment of a high-efficiency heat dissipation type blow mold according to the present invention;

FIG. 2 is a schematic view showing a connection structure of the upper die holder and the lower die holder shown in FIG. 1;

FIG. 3 is a schematic view of a connection structure of the lower die holder and the rotary structure shown in FIG. 1;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic view of a connection structure between the upper mold base and the guide post shown in FIG. 1;

fig. 6 is a schematic view of a connection structure of the cooling structure and the accelerating structure shown in fig. 1.

In the figure: 1. the structure of the upper die comprises an upper die structure, 11, an upper die base, 12, an upper die core, 2, a lower die structure, 21, a lower die base, 22, a lower die core, 3, a cooling structure, 31, a water inlet, 32, a water inlet channel, 33, a water outlet channel, 34, a water outlet, 4, a guide pillar structure, 41, a guide pillar body, 42, a movable groove, 43, a rotating ball, 5, a guide bushing structure, 51, a guide bushing body, 52, a first spring, 53, an oil storage bin, 54, an oil channel, 55, a ball, 56, a top plate, 6, a rotating structure, 61, a sliding block, 62, a second spring, 63, a pushing rod, 64, a movable block, 65, a fixed groove, 66, a rotating rod, 67, a rotating disc, 68, a fixed disc, 7, an accelerating structure, 71.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-6, the high-efficiency heat dissipation type blow mold according to the present invention includes an upper mold structure 1, a lower mold structure 2, a cooling structure 3, a guide pillar structure 4, a guide sleeve structure 5, a rotating structure 6, and an accelerating structure 7; the bottom end of the upper die structure 1 for forming the plastic part is provided with the lower die structure 2 matched with the upper die structure 1 for use, and one end of the upper die structure 1 is provided with the guide pillar structure 4 capable of guiding the upper die structure 1; one end of the lower die structure 2 is provided with the guide sleeve structure 5 capable of guiding the lower die structure 2, and the cooling structures 3 capable of cooling and radiating the plastic pieces formed by blow molding are arranged in the upper die structure 1 and the lower die structure 2; go up mould structure 1 with lower mould structure 2's inside all is equipped with can with the water of cooling structure 3's inside accelerates structure 7 accelerates, go up mould structure 1 with lower mould structure 2's inside all is equipped with and is used for structure 7 provides power with higher speed rotating-structure 6.

Specifically, go up mold structure 1 and include upper die base 11 and go up mold core 12, upper die base 11 is the rectangle structure, the inside of upper die base 11 is equipped with go up mold core 12, through upper die base 11 with the shaping of working of plastics can be guaranteed in the setting of going up mold core 12.

Specifically, the lower die structure 2 includes a lower die base 21 and a lower die core 22, the lower die base 21 is arranged at one end of the upper die base 11, the lower die core 22 is arranged inside the lower die base 21, and the plastic part can be formed through the arrangement of the lower die base 21 and the lower die core 22.

Specifically, four guide post structures 4 are provided, the four guide post structures 4 are symmetrically distributed in pairs about a center line of the upper die holder 11, each guide post structure 4 includes a guide post body 41, a movable groove 42 and a rotating ball 43, the spherical rotating ball 43 is rotatably connected inside the upper die holder 11, the upper die holder 11 is provided with the circular movable groove 42, one end of the rotating ball 43 is fixed to the guide post body 41 of a cylindrical structure, the guide post body 41 penetrates through the movable groove 42, the diameter of the movable groove 42 is larger than that of the guide post body 41, the diameter of the movable groove 42 is smaller than the maximum diameter of the rotating ball 43, when in use, the guide post body 41 can play a guiding role, so that the phenomenon that the upper die holder 11 and the lower die holder 21 are misaligned can be effectively prevented, and the upper die holder 11 is provided with the four guide post bodies 41, the four guide pillar bodies 41 are arranged in pairwise symmetry with respect to the center line of the upper die holder 11, the guide pillar bodies 41 are rotatably connected with the upper die holder 11 through the spherical rotating balls 43, and the guide pillar bodies 41 are rotatably connected with the upper die holder 11, so that automatic alignment can be performed when the guide pillar bodies 41 are in contact with the guide sleeve body 51, and the phenomenon of collision damage caused by deviation of the upper die holder 11 and the lower die holder 21 is prevented.

Specifically, four guide sleeve structures 5 are provided, the four guide sleeve structures 5 are distributed in pairwise symmetry about a center line of the lower die holder 21, each guide sleeve structure 5 includes a guide sleeve body 51, a first spring 52, an oil storage bin 53, an oil passage 54, balls 55 and a top plate 56, the guide sleeve body 51 is fixed inside the lower die holder 21, the top end of the guide sleeve body 51 is in a horn-shaped structure, the oil storage bin 53 is provided inside the guide sleeve body 51, the top plate 56 is connected inside the oil storage bin 53 in a sliding manner, the first spring 52 is connected between the top plate 56 and the guide sleeve body 51, the plurality of balls 55 are rotatably provided in the circumferential direction inside the guide sleeve body 51, the plurality of S-shaped oil passages 54 are provided inside the guide sleeve body 51, when the guide post body 41 contacts with the guide sleeve body 51, the guide post body 41 enters the guide sleeve body 51, the plurality of balls 55 are rotatably connected to the inner side wall of the guide sleeve body 51, the guide post body 41 can be conveniently entered by arranging the balls 55, the oil storage bin 53 is arranged in the guide sleeve body 51, the first spring 52 is fixed in the oil storage bin 53, the top plate 56 is fixed at one end of the first spring 52, the top plate 56 can pressurize the oil storage bin 53 under the pressure of the balls 55, the lubricating oil in the oil storage bin 53 can flow into the guide sleeve body 51 from the oil channel 54 for lubrication, and the service life of the die can be prolonged.

Specifically, the rotating structure 6 includes a sliding block 61, a second spring 62, a pushing rod 63, a movable block 64, a fixing groove 65, a rotating rod 66, a rotating disk 67 and a fixing disk 68, the rectangular sliding block 61 is slidably connected inside the lower die holder 21, the second spring 62 is fixed between the sliding block 61 and the lower die holder 21, one end of the sliding block 61 close to the second spring 62 is fixed with the pushing rod 63, the pushing rod 63 is slidably connected with the lower die holder 21, one end of the pushing rod 63 departing from the sliding block 61 is fixed with the movable block 64, the inside of the movable block 64 is provided with the arc-shaped fixing groove 65, the movable block 64 is slidably connected with the lower die holder 21, the inside of the movable block 64 is rotatably connected with the rotating rod 66, one end of the rotating rod 66 departing from the movable block 64 is rotatably connected with the rotating disk 67, one end of the rotating disk 67 is provided with the fixing disk 68, the fixed disk 68 is connected with the rotary disk 67 in a rotating manner, the fixed disk 68 is connected with the lower die holder 21 in a fixed manner, the rotating rod 66 is not located at the center of the rotary disk 67 in a rotating point, when the two die holders are close to each other, the sliding rod 61 is connected with the upper die holder 11 and the lower die holder 21 in a sliding manner and starts to extrude, the sliding block 61 moves to fix the push rod 63 at one end of the sliding block 61 and starts to slide in the lower die holder 21, so that the movable block 64 can be pushed to start to slide in the lower die holder 21, one end of the movable block 64 departing from the push rod 63 is connected with the rotating rod 66 in a rotating manner, the fixed groove 65 formed in the movable block 64 can ensure that the rotating rod 66 can rotate by a certain angle, the other end of the rotating rod 66 is connected with the rotary disk 67 in a rotating manner, and the rotating point of the rotating rod 66 and the rotary disk 67 is not located at the central point of the rotary disk, therefore, the rotation of the rotary disk 67 can be realized by the rotation of the rotary rod 66.

Specifically, structure 7 includes pivot 71 and blade 72 with higher speed, pivot 71 is fixed in the central point of carousel 67 puts, the outside of pivot 71 is that the annular array distributes and has a plurality ofly blade 72, just blade 72 is sickle column structure fixed in the center of carousel 67 pivot 71 the outside of pivot 71 is that the annular array distributes and has a plurality ofly blade 72, just blade 72 is sickle column structure, through the pivoted blade 72, can accelerate the velocity of flow of water, make the cooling effect of mould better.

Specifically, the cooling structure 3 includes a water inlet 31, a water inlet channel 32, a water outlet channel 33 and a water outlet 34, the water inlet 31 is arranged at one end of the lower die holder 21, the water inlet channel 32 is arranged in the lower die holder 21 and has a continuous S-shaped structure, the water outlet channel 33 is arranged in the lower die holder 21 and has a continuous S-shaped structure, the lower die holder 21 deviates from the water outlet 34 arranged at one end of the water inlet 31, the water inlet channel 32 is communicated with the water outlet channel 33, when the cooling structure is used, the water inlet 31 is connected with an external water pipe of the water outlet 34, water can flow from the water inlet 31 into the inside of the die, the water inlet channel 32 is arranged in the lower die holder 21 and has a continuous S-shaped structure, and the water inlet channel 32 is communicated with the water outlet channel 33 and the water outlet channel 33 is communicated with the blades 72, so as to achieve the effect of cooling.

When the cooling mold is used, the upper mold base 11 and the lower mold base 21 are fixed on a blow molding machine, then the water inlet 31 and the water outlet 34 are externally connected with water pipes, water can enter the interior of the mold from the water inlet 31, the interior of the lower mold base 21 is provided with the water inlet channel 32 and the water outlet channel 33 which are in a continuous S-shaped structure, and the water inlet channel 32 and the water outlet channel 33 are both communicated with the blades 72, so that the effect of cooling the mold is achieved; the guide pillar body 41 can play a role in guiding, the phenomenon that the upper die base 11 and the lower die base 21 are not aligned can be effectively prevented, four guide pillar bodies 41 are arranged on the upper die base 11, the four guide pillar bodies 41 are arranged in pairwise symmetry about the central line of the upper die base 11, the guide pillar body 41 is rotatably connected with the upper die base 11 through the spherical rotating bead 43, and the guide pillar body 41 is rotatably connected with the upper die base 11, so that when the guide pillar body 41 is in contact with the guide sleeve body 51, automatic guiding can be performed, and the phenomenon that the upper die base 11 and the lower die base 21 are damaged due to collision caused by deviation is prevented; when the guide post body 41 is in contact with the guide sleeve body 51, the guide post body 41 enters the guide sleeve body 51, a plurality of balls 55 are rotatably connected to the inner side wall of the guide sleeve body 51, the guide post body 41 can conveniently enter through the arrangement of the balls 55, an oil storage bin 53 is arranged inside the guide sleeve body 51, a first spring 52 is fixed inside the oil storage bin 53, a top plate 56 is fixed at one end of the first spring 52, the top plate 56 can pressurize the inside of the oil storage bin 53 under the pressure of the balls 55, lubricating oil in the oil storage bin 53 can flow into the guide sleeve body 51 from an oil channel 54 for lubrication, and the service life of a die can be prolonged; when the two die holders approach each other, the sliding block 61 slidably connected to the upper die holder 11 and the lower die holder 21 starts to perform extrusion work, the sliding block 61 moves, the push rod 63 fixed to one end of the sliding block 61 starts to slide in the lower die holder 21, so that the movable block 64 can be pushed to start to slide in the lower die holder 21, the end of the movable block 64, which is far away from the push rod 63, is rotatably connected to the rotating rod 66, the rotating rod 66 can be ensured to rotate by a certain angle through the fixing groove 65 formed in the movable block 64, the other end of the rotating rod 66 is rotatably connected to the turntable 67, and the rotating point of the rotating rod 66 and the turntable 67 is not located at the central point of the turntable 67, so that the turntable 67 can rotate through the rotation of the rotating rod; fixed pivot 71 is gone up in the center of carousel 67, and it has a plurality of blades 72 to be distributed at the outside of pivot 71 for the annular array, and blades 72 are sickle column structure, through pivoted blade 72, can accelerate the velocity of flow of water, makes the cooling effect of mould better.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high-efficient heat dissipation type blow mold which characterized in that: comprises an upper die structure (1), a lower die structure (2), a cooling structure (3), a guide post structure (4), a guide sleeve structure (5), a rotating structure (6) and an accelerating structure (7); the lower die structure (2) matched with the upper die structure (1) is arranged at the bottom end of the upper die structure (1) for forming the plastic parts, and the guide pillar structure (4) capable of guiding the upper die structure (1) is arranged at one end of the upper die structure (1); one end of the lower die structure (2) is provided with the guide sleeve structure (5) capable of guiding the lower die structure (2), and the upper die structure (1) and the lower die structure (2) are both internally provided with the cooling structure (3) capable of cooling and radiating the blow-molded plastic part; the upper die structure (1) and the lower die structure (2) are internally provided with the accelerating structures (7) capable of accelerating water in the cooling structure (3), and the upper die structure (1) and the lower die structure (2) are internally provided with the rotating structures (6) for providing power for the accelerating structures (7);

the upper die structure (1) comprises an upper die base (11) and an upper die core (12), the upper die base (11) is of a rectangular structure, and the upper die core (12) is arranged inside the upper die base (11);

the lower die structure (2) comprises a lower die base (21) and a lower die core (22), the lower die base (21) is arranged at one end of the upper die base (11), and the lower die core (22) is arranged in the lower die base (21);

the four guide post structures (4) are symmetrically distributed in pairs about the central line of the upper die holder (11), each guide post structure (4) comprises a guide post body (41), a movable groove (42) and a rotating bead (43), the spherical rotating bead (43) is rotatably connected inside the upper die holder (11), the upper die holder (11) is provided with the circular movable groove (42), one end of the rotating bead (43) is fixed with the guide post body (41) of a cylindrical structure, the guide post body (41) penetrates through the movable groove (42), the diameter of the movable groove (42) is larger than that of the guide post body (41), and the diameter of the movable groove (42) is smaller than the maximum diameter of the rotating bead (43);

four guide sleeve structures (5) are arranged, the four guide sleeve structures (5) are distributed in pairwise symmetry about the central line of the lower die holder (21), each guide sleeve structure (5) comprises a guide sleeve body (51), a first spring (52), an oil storage bin (53), an oil duct (54), balls (55) and a top plate (56), the guide sleeve body (51) is fixed inside the lower die holder (21), the top end of the guide sleeve body (51) is of a horn-shaped structure, the oil storage bin (53) is arranged inside the guide sleeve body (51), the top plate (56) is connected inside the oil storage bin (53) in a sliding manner, the first spring (52) is connected between the top plate (56) and the guide sleeve body (51), a plurality of balls (55) are arranged in the inner circumferential direction of the guide sleeve body (51) in a rotating way, a plurality of S-shaped oil passages (54) are arranged in the guide sleeve body (51);

the rotating structure (6) comprises a sliding block (61), a second spring (62), a push rod (63), a movable block (64), a fixing groove (65), a rotating rod (66), a rotary disc (67) and a fixed disc (68), the rectangular sliding block (61) is connected inside the lower die holder (21) in a sliding manner, the second spring (62) is fixed between the sliding block (61) and the lower die holder (21), the push rod (63) is fixed at one end, close to the second spring (62), of the sliding block (61), the push rod (63) is connected with the lower die holder (21) in a sliding manner, the movable block (64) is fixed at one end, departing from the sliding block (61), of the push rod (63), the arc-shaped fixing groove (65) is arranged inside the movable block (64), the movable block (64) is connected with the lower die holder (21) in a sliding manner, the rotating rod (66) is connected inside the movable block (64) in a rotating manner, one end, deviating from the movable block (64), of the rotating rod (66) is rotatably connected with the rotary table (67), one end of the rotary table (67) is provided with the fixed disc (68), the fixed disc (68) is rotatably connected with the rotary table (67), the fixed disc (68) is fixedly connected with the lower die holder (21), and the rotating point of the rotating rod (66) and the rotary table (67) is not located at the center of the rotary table (67);

the accelerating structure (7) comprises a rotating shaft (71) and blades (72), the rotating shaft (71) is fixed at the center of the rotating disc (67), a plurality of blades (72) are distributed outside the rotating shaft (71) in an annular array, and the blades (72) are in a sickle-shaped structure; the cooling structure (3) comprises a water inlet (31), a water inlet channel (32), a water outlet channel (33) and a water outlet (34), the water inlet (31) is arranged at one end of the lower die base (21), the water inlet channel (32) in a continuous S-shaped structure is arranged inside the lower die base (21), the water outlet channel (33) in a continuous S-shaped structure is arranged inside the lower die base (21), the water outlet (34) is arranged at one end, away from the water inlet (31), of the lower die base (21), and the water inlet channel (32) is communicated with the water outlet channel (33);

when the cooling die is used, the upper die holder (11) and the lower die holder (21) are fixed on a blow molding machine, then the water inlet (31) and the water outlet (34) are externally connected with water pipes, water can enter the interior of the die from the water inlet (31), a water inlet channel (32) and a water outlet channel (33) which are in a continuous S-shaped structure are arranged in the lower die holder (21), and the water inlet channel (32) and the water outlet channel (33) are both communicated with the blades (72), so that the effect of cooling the die is achieved; the guide post body (41) can play a role in guiding, the phenomenon that an upper die base (11) and a lower die base (21) are not aligned can be effectively prevented, four guide post bodies (41) are arranged on the upper die base (11), the four guide post bodies (41) are arranged in pairwise symmetry about the central line of the upper die base (11), the guide post bodies (41) are rotatably connected with the upper die base (11) through spherical rotating balls (43), and are rotatably connected with the upper die base (11) through the guide post bodies (41), when the guide post bodies (41) are in contact with a guide sleeve body (51), automatic correction can be performed, and the phenomenon that the upper die base (11) and the lower die base (21) are damaged due to collision caused by deviation is prevented; when the guide post body (41) is in contact with the guide sleeve body (51), the guide post body (41) enters the guide sleeve body (51), a plurality of balls (55) are rotatably connected to the side wall inside the guide sleeve body (51), the guide post body (41) can conveniently enter through the arrangement of the balls (55), an oil storage bin (53) is arranged inside the guide sleeve body (51), a first spring (52) is fixed inside the oil storage bin (53), a top plate (56) is fixed at one end of the first spring (52), the top plate (56) can pressurize the inside of the oil storage bin (53) under the pressure of the balls (55), lubricating oil inside the oil storage bin (53) can flow into the guide sleeve body (51) from an oil duct (54) for lubrication, and the service life of a die can be prolonged; when the two die holders are close to each other, a sliding block (61) connected to the upper die holder (11) and the lower die holder (21) in a sliding mode starts to perform extrusion work, the sliding block (61) moves, a push rod (63) fixed to one end of the sliding block (61) starts to slide in the lower die holder (21), the movable block (64) can be pushed to start to slide in the lower die holder (21), a rotating rod (66) is rotatably connected to one end, away from the push rod (63), of the movable block (64), the rotating rod (66) can be ensured to rotate by a certain angle through a fixing groove (65) formed in the movable block (64), the other end of the rotating rod (66) is rotatably connected with a rotating disc (67), and the rotating points of the rotating rod (66) and the rotating disc (67) are not located on the central point of the rotating disc (67), so that the rotating disc (67) can rotate through the rotation of the rotating rod (66; fixed pivot (71) on the center of carousel (67), it distributes to be annular array in the outside of pivot (71) has a plurality of blades (72), and blade (72) are sickle column structure, through pivoted blade (72), can accelerate the velocity of flow of water, makes the cooling effect of mould better.