CN216635346U

CN216635346U - High-precision blow molding mold

Info

Publication number: CN216635346U
Application number: CN202123286225.2U
Authority: CN
Inventors: 敖志华
Original assignee: Xiamen Donglisheng Plastic Co ltd
Current assignee: Xiamen Donglisheng Plastic Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-05-31
Anticipated expiration: 2031-12-24

Abstract

The utility model provides a high-precision blow molding die, which relates to the technical field of blow molding dies and comprises a right die holder, a left die holder and an inner die holder, wherein the inner die holders are arranged inside the right die holder and the left die holder, sealing mechanisms are arranged at the tops of the right die holder and the left die holder, guide grooves are formed in four vertex angles of the right die holder, and guide columns are arranged at the four vertex angles of the left die holder; according to the utility model, the sealing mechanism is arranged at the tops of the right die holder and the left die holder, the sealing mechanism mainly comprises the fixed seat and the movable seat, and under the matching of the through groove, the clamping block, the jacking block and the clamping groove in the right die holder and the left die holder, the movable seat and the fixed seat are completely aligned and connected together up and down, so that a solid pipe in the movable seat is inserted into the blow molding hole and is connected with the opening at the top end of the inner die holder to completely block the blow molding hole, thereby preventing air from entering the blow molding hole along with the blow molding hole and further influencing the quality of a subsequent plastic product.

Description

High-precision blow molding mold

Technical Field

The utility model relates to the technical field of blow molds, in particular to a high-precision blow mold.

Background

The blow molding technology is used for producing low-density polyethylene small bottles in the second world war, the blow molding technology is widely applied in the late 50 s along with the birth of high-density polyethylene and the development of blow molding machines, the volume of hollow containers can reach thousands of liters, some production adopts computer control, the plastics suitable for blow molding comprise polyethylene, polyvinyl chloride, polypropylene, polyester and the like, the obtained hollow containers are widely used as industrial packaging containers, the blow molding can be divided into extrusion blow molding and injection blow molding according to a parison manufacturing method, and newly developed multilayer blow molding and stretching blow molding are adopted;

the existing blow mold blows air to a blow opening in the mold through an air pump to expand and mold a plastic blank, however, when the blow mold does not work, dust in the air easily enters the blow mold through the blow opening at the top of the blow mold, and the quality of a plastic product is further influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides a high-precision blow molding die, which solves the problem that in the prior art, when the blow molding die does not work, dust enters the interior of the blow molding die along a blow molding opening at the top of the blow molding die, so that the quality of a plastic product is influenced.

In order to realize the purpose of the utility model, the utility model is realized by the following technical scheme: a high-precision blow molding die comprises a right die holder, a left die holder and an inner die holder, wherein the left die holder is arranged on the left side of the right die holder, the inner die holders are arranged inside the right die holder and the left die holder, sealing mechanisms are arranged at the tops of the right die holder and the left die holder, guide grooves are formed in four top corners of the right die holder, guide columns are arranged at four top corners of the left die holder, and the guide grooves correspond to the guide columns in position;

sealing mechanism includes fixing base, sliding seat, solid pipe, kicking block, draw-in groove, leads to groove, fixture block and fixing bolt, the right side die holder all is equipped with the fixing base with the top of left die holder, the inside of fixing base is equipped with the blowing hole, the top block of fixing base has the sliding seat, the center department of sliding seat is equipped with solid pipe, solid pipe corresponds from top to bottom with the position in blowing hole, the center department at fixing base top is equipped with the kicking block, the inside of fixing base is equipped with the draw-in groove, the inside of sliding seat is equipped with leads to the groove, the bottom of sliding seat is equipped with the fixture block, the sliding seat passes through fixing bolt and fixing base threaded connection.

The further improvement is that: the positions of the clamping groove and the clamping block vertically correspond, the clamping groove is matched with the shape of the clamping block, the positions of the ejecting block and the through groove vertically correspond, and the ejecting block is matched with the shape of the through groove.

The further improvement is that: the die comprises a die holder, a die holder and a die holder, and is characterized in that connecting columns are arranged inside the die holder and the die holder, connecting grooves matched with the connecting columns are arranged inside the die holder, the connecting columns and the connecting grooves are cylindrical, and the connecting columns and the connecting grooves are in transition fit.

The further improvement lies in that: and a group of fixing holes are symmetrically formed in the two sides of the outer walls of the right die holder and the left die holder, and the right die holder or the left die holder penetrates through the fixing holes through fastening bolts and is in threaded connection with the inner die holder.

The further improvement lies in that: and sealing rings are arranged inside the die holder and the left die holder, the sealing rings are positioned at the gap between the inner die holder and the right die holder or the left die holder, and the sealing rings are made of rubber.

The further improvement lies in that: the guide post is of a piston rod structure, one end of the piston rod is welded with the outer wall of the left die holder, and a spring is sleeved on the outer side of the piston rod.

The utility model has the beneficial effects that: set up sealing mechanism at the top of right die holder and left die holder, sealing mechanism mainly comprises fixing base and sliding seat, through the cooperation of logical groove in right die holder and the left die holder, the fixture block, the kicking block, the draw-in groove, make the position of sliding seat and fixing base adjust the straight connection together completely from top to bottom, thereby make the inside solid pipe of sliding seat insert the inside in blow molding hole, and be connected with the opening part on and interior die holder top, block up the blow molding hole completely, avoid the air to get into inside along with the blow molding hole, and then influence behind the quality of plastic products.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic view of a right die holder according to the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic structural view of a sealing mechanism of the present invention;

FIG. 5 is a schematic view of the left mold base structure of the present invention.

Wherein: 1. a right die holder; 2. a left die holder; 3. an inner die holder; 4. a fixed seat; 5. a movable seat; 6. a solid tube; 7. a top block; 8. a card slot; 9. a through groove; 10. a clamping block; 11. fixing the bolt; 12. connecting columns; 13. connecting grooves; 14. a guide groove; 15. a guide post; 16. a fixing hole; 17. fastening a bolt; 18. a seal ring; 19. a spring; 20. and (4) blowing the holes.

Detailed Description

In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

According to fig. 1-5, the embodiment provides a high-precision blow molding die, which includes a right die holder 1, a left die holder 2 and an inner die holder 3, wherein the left side of the right die holder 1 is provided with the left die holder 2, the insides of the right die holder 1 and the left die holder 2 are both provided with the inner die holder 3, four vertex angles of the right die holder 1 are provided with guide grooves 14, four vertex angles of the left die holder 2 are provided with guide posts 15, the positions of the guide grooves 14 and the guide posts 15 correspond to each other, the insides of the right die holder 1 and the left die holder 2 are both provided with connecting posts 12, the inside of the inner die holder 3 is provided with connecting grooves 13 matched with the connecting posts 12, the connecting posts 12 and the connecting grooves 13 are cylindrical in shape, the connecting posts 12 and the connecting grooves 13 are in transition fit, a set of fixing holes 16 are symmetrically arranged on both sides of the outer walls of the right die holder 1 and the left die holder 2, the right die holder 1 or the left die holder 2 penetrates through a fixing hole 16 through a fastening bolt 17 and is in threaded connection with the inner die holder 3, when the die is used, the two inner die holders 3 are respectively placed in cavities in the right die holder 1 and the left die holder 2, the inner die holders 3 are located in the central positions in the cavities through the guiding of the connecting columns 12 and the connecting grooves 13, the inner die holders 3 are fixed in the cavities through the fixing holes 16 in the right die holder 1 and the left die holder 2 by the aid of the fastening bolts 17, installation of the inner die holders 3 is completed, plastic blanks are placed in the middles of the right die holder 1 and the left die holder 2, then the right die holder 1 and the left die holder 2 are combined with the guiding columns 15 through the guiding grooves 14, blow molding is started, finally the right die holder 1 and the left die holder 2 are separated, and demolding is conducted on manufactured plastic products.

Four apex angle departments of right side die holder 1 are equipped with guide way 14, four apex angle departments of left side die holder 2 are equipped with guide post 15, guide way 14 corresponds each other with the position of guide post 15, guide post 15 is the piston rod structure, the one end of piston rod and the outer wall welding of left die holder 2, the outside cover of piston rod is equipped with spring 19, when right die holder 1 merges with left die holder 2, guide post 15 get into the inside of guide way 14 and with the contact, guide post 15 begins to shrink, and the elasticity that spring 19 produced can offset the pressure of some right die holder 1 and left die holder 2 merging in-process production, avoids right die holder 1 and left die holder 2 too violent and leads to damaging with the power.

The inner parts of the right die holder 1 and the left die holder 2 are provided with sealing rings 18, the sealing rings 18 are positioned at the gap between the inner die holder 3 and the right die holder 1 or the left die holder 2, the sealing rings 18 are made of rubber, the rubber has high density and can play a role in sealing, and the sealing rings are arranged at the gap between the inner die holder 3 and the right die holder 1 or the left die holder 2, so that the influence of air on plastic products in the blow molding process can be avoided.

The sealing mechanism comprises a fixed seat 4, a movable seat 5, a solid pipe 6, an ejector block 7, a clamping groove 8, a through groove 9, a fixture block 10 and a fixing bolt 11, wherein the fixed seat 4 is arranged at the top ends of a right die holder 1 and a left die holder 2, a blowing hole 20 is arranged inside the fixed seat 4, the movable seat 5 is clamped at the top end of the fixed seat 4, the solid pipe 6 is arranged at the center of the movable seat 5, the solid pipe 6 vertically corresponds to the blowing hole 20, the ejector block 7 is arranged at the center of the top of the fixed seat 4, the clamping groove 8 is arranged inside the fixed seat 4, the through groove 9 is arranged inside the movable seat 5, the fixture block 10 is arranged at the bottom end of the movable seat 5, the movable seat 5 is in threaded connection with the fixed seat 4 through the fixing bolt 11, the clamping groove 8 vertically corresponds to the position of the fixture block 10, the clamping groove 8 is matched with the shape of the fixture block 10, and the ejector block 7 vertically corresponds to the position of the through groove 9, the kicking block 7 agrees with the shape that leads to groove 9, after work is accomplished, insert the sliding seat 5 in fixing base 4, lead to groove 9 in the sliding seat 5, fixture block 10 respectively with the kicking block 7 in the fixing base 4, draw-in groove 8 interconnect is in the same place, thereby make the position of sliding seat 5 and fixing base 4 adjust well from top to bottom completely, and then make the inside solid pipe 6 of sliding seat 5 be connected with the opening part on 3 tops of interior die holder, reuse fixing bolt 11 links together fixing base 4 and sliding seat 5, make solid pipe 6 block up blow molding hole 20 completely, avoid the air to get into inside along with blow molding hole 20, and then influence behind the quality of plastic products.

This high accuracy blow molding mould, top at right die holder 1 and left die holder 2 sets up sealing mechanism, sealing mechanism mainly comprises fixing base 4 and sliding seat 5, through logical groove 9 in right die holder 1 and the left die holder 2, fixture block 10, kicking block 7, the cooperation of draw-in groove 8, make sliding seat 5 and fixing base 4's position about link together well completely, thereby make the inside solid pipe 6 of sliding seat 5 insert the inside of blowing hole 20, and be connected with the opening part on 3 tops of centre form seat, hole 20 seals up and blocks up completely blowing, avoid the air to get into inside along with blowing hole 20, and then influence behind the quality of plastic products.

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, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high accuracy blow mold, includes right die base (1), left die base (2) and interior die holder (3), its characterized in that: a left die holder (2) is arranged on the left side of the right die holder (1), inner die holders (3) are arranged inside the right die holder (1) and the left die holder (2), sealing mechanisms are arranged at the tops of the right die holder (1) and the left die holder (2), guide grooves (14) are formed in four top corners of the right die holder (1), guide columns (15) are arranged at four top corners of the left die holder (2), and the guide grooves (14) correspond to the guide columns (15);

the sealing mechanism comprises a fixed seat (4), a movable seat (5), a solid tube (6), a top block (7), a clamping groove (8), a through groove (9), a clamping block (10) and a fixing bolt (11), the top ends of the right die holder (1) and the left die holder (2) are both provided with a fixed seat (4), a blowing hole (20) is arranged in the fixed seat (4), a movable seat (5) is clamped at the top end of the fixed seat (4), a solid pipe (6) is arranged at the center of the movable seat (5), the solid pipe (6) is vertically corresponding to the blowing hole (20), a top block (7) is arranged at the center of the top of the fixed seat (4), a clamping groove (8) is arranged inside the fixed seat (4), a through groove (9) is arranged inside the movable seat (5), a clamping block (10) is arranged at the bottom end of the movable seat (5), the movable seat (5) is in threaded connection with the fixed seat (4) through a fixed bolt (11).

2. A high precision blow mold according to claim 1, characterized in that: the positions of the clamping groove (8) and the clamping block (10) vertically correspond, the shape of the clamping groove (8) is matched with that of the clamping block (10), the positions of the ejecting block (7) and the through groove (9) vertically correspond, and the shape of the ejecting block (7) is matched with that of the through groove (9).

3. A high precision blow mold according to claim 1, characterized in that: the die holder is characterized in that a connecting column (12) is arranged inside each of the right die holder (1) and the left die holder (2), a connecting groove (13) matched with the connecting column (12) is arranged inside each of the inner die holders (3), the connecting column (12) and the connecting groove (13) are cylindrical in shape, and transition fit is formed between the connecting column (12) and the connecting groove (13).

4. A high precision blow mold according to claim 1, characterized in that: the die comprises a die holder and is characterized in that a group of fixing holes (16) are symmetrically formed in two sides of the outer wall of each of the right die holder (1) and the left die holder (2), and the right die holder (1) or the left die holder (2) penetrates through the fixing holes (16) through fastening bolts (17) and is in threaded connection with the inner die holder (3).

5. A high precision blow mold according to claim 1, characterized in that: the inner parts of the right die holder (1) and the left die holder (2) are provided with sealing rings (18), the sealing rings (18) are positioned at the gaps between the inner die holder (3) and the right die holder (1) or the left die holder (2), and the sealing rings (18) are made of rubber.

6. A high precision blow mold according to claim 1, characterized in that: the guide post (15) is of a piston rod structure, one end of the piston rod is welded with the outer wall of the left die holder (2), and a spring (19) is sleeved on the outer side of the piston rod.