CN214645793U

CN214645793U - High-precision hollow blow molding mold for clinical liquid transfer suction tube

Info

Publication number: CN214645793U
Application number: CN202120202291.8U
Authority: CN
Inventors: 秦旺仁增
Original assignee: Zhejiang Runlan Technology Co ltd
Current assignee: Zhejiang Runlan Technology Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-11-09
Anticipated expiration: 2031-01-25

Abstract

The utility model provides a clinical liquid-transfering suction pipe high accuracy cavity blow molding mould belongs to blow molding mould technical field. It has solved the poor problem of current blow molding mould adjustment nature. This clinical pipetting high accuracy cavity blow molding mould, including last mould and with the lower mould that matches of last mould, be provided with a plurality of blowing subassembly in the lower mould, the intercommunication has a plurality of to be used for pipetting the fashioned blowing chamber of straw on every blowing subassembly, be equipped with logical groove between every blowing subassembly and the blowing chamber that corresponds, logical inslot is provided with the inserted block, the upper surface that the inserted block can remove the lower mould relatively and be close to or keep away from the lower mould, be formed with the inside groove that is used for pipetting the fashioned cavity of straw between the upper end of inserted block and the blowing chamber. The utility model has the advantage of strong adjustment.

Description

High-precision hollow blow molding mold for clinical liquid transfer suction tube

Technical Field

The utility model belongs to the technical field of the blowing mould, a clinical liquid-transfering suction pipe high accuracy cavity blow molding mould is related to.

Background

Blow molding, also known as blow molding, is a rapidly developing plastic processing method, and blow molding can be divided into extrusion blow molding and injection blow molding, wherein 3/4 blow molded articles are manufactured by extrusion blow molding, wherein the extrusion process forces a material through a hole or a mold to manufacture a product, and the extrusion blow molding process consists of 5 steps: 1. plastic parison (extrusion of hollow plastic tube); 2. closing the split mold on the parison, clamping the mold and cutting off the parison; 3. blowing and expanding the mold cavity, adjusting the opening and keeping a certain pressure during cooling; 4. opening the mold and discharging the blown part; 5. trimming the flash to obtain a finished product.

The liquid transfer suction pipe is one of products formed by processing through the blow molding die, most of the existing blow molding dies are universal dies for one type of products, the liquid transfer suction pipe has more types of sizes, the liquid transfer suction pipes with different sizes need blow molding dies with different specifications to be produced for the existing blow molding dies, a plurality of pairs of blow molding dies are prepared according to the liquid transfer suction pipes with only small shape changes, and the production cost is increased invisibly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a clinical liquid-transfering suction pipe high accuracy cavity blow molding mould that regulation nature is strong.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides a clinical pipetting high accuracy cavity blow molding mould, includes the mould and with the lower mould that matches of last mould, the lower mould in be provided with a plurality of blow molding subassembly, every the blow molding subassembly on the intercommunication have a plurality of to be used for pipetting the fashioned blow molding chamber of straw, its characterized in that, every blow molding subassembly and the blow molding chamber that corresponds between be equipped with logical groove, logical inslot be provided with the inserted block, the inserted block can remove the upper surface that is close to or keeps away from the lower mould relatively the lower mould, be formed with the inside groove that is used for pipetting the shaping of straw cavity between the upper end of inserted block and the blow molding chamber.

In foretell clinical liquid-transfering suction pipe high accuracy cavity blow molding mould, every the blow molding subassembly include a plurality of air inlet and intercommunication air inlet and the chamber of being connected in the blowing chamber, a plurality of the even distribution in the one end of connecting the chamber of air inlet, a plurality of blowing chamber distributes in the other end of connecting the chamber.

In the high-precision hollow blow molding mold for the clinical pipette, each air inlet is conical, and one end of the air inlet with the small diameter faces to one side of the connecting chamber.

In the high-precision hollow blow molding mold for the clinical pipette, each blow molding assembly is connected with two blow molding cavities, and the two blow molding cavities are arranged in parallel.

In the clinical pipette high-precision hollow blow molding mold, each blow molding cavity comprises an upper molding part and a molding channel for communicating the upper molding part with the connecting cavity, and the through groove is arranged at the position of the molding channel.

In the high-precision hollow blow molding mold for the clinical pipette, the width of the through groove is larger than the distance between two molding channels in the same blow molding assembly.

In the clinical liquid-transfering suction pipe high-precision hollow blow molding mold, the side surface of the insert is in sealing fit with the through groove, the upper end of the insert is provided with an arc-shaped surface matched with the molding channel, and the bottom end of the insert is movably connected to the lower mold.

In the clinical pipette high-precision hollow blow molding mold, the bottom end of the insert is provided with an outer connecting platform protruding in the radial direction, the outer connecting platform is detachably connected with the lower mold through bolts, and the bottom end face of the lower mold is provided with a side groove for accommodating the insert.

In the high-precision hollow blow molding mold for the clinical liquid transfer pipette, the lower mold is provided with a plurality of guide posts protruding towards one side of the upper mold, and the upper mold is provided with guide grooves for the guide posts to penetrate.

In the high-precision hollow blow molding mold for the clinical pipette, the upper mold and the lower mold are both provided with a plurality of cooling runners, and the plurality of cooling runners are horizontally arranged on the upper mold and the lower mold.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses be equipped with logical groove between every blowing subassembly and the blowing chamber that corresponds, logical inslot is provided with the inserted block, and the inserted block can be moved relatively the lower mould and be close to or keep away from the upper surface of lower mould, is formed with the inside groove that is used for moving liquid straw cavity shaping between the upper end of inserted block and the blowing chamber, changes the size of inside groove through the position of adjustment inserted block, and then adjusts the capacity that moves liquid straw, has strong, the simple and practical's of regulation nature advantage.

2. The utility model discloses in the transversal toper of personally submitting of every air inlet, the one end orientation that the air inlet diameter is little connects cavity one side, improves the air admission ability.

3. The utility model discloses the bottom of well inserted block is equipped with radial bellied external connection platform, and the external connection platform passes through bolt and lower mould detachable connections, makes things convenient for the regulation of inserted block on the height.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a structural sectional view of the present invention.

Fig. 3 is a plan view of the middle and lower molds of the present invention.

Fig. 4 is an enlarged view of the structure of the middle air inlet of the present invention.

In the figure, 1, an upper die; 2. a lower die; 3. a blow molding assembly; 4. a blow molding chamber; 5. a through groove; 6. inserting a block; 7. an inner tank; 8. an air inlet; 9. connecting the chambers; 10. an upper molding section; 11. forming a channel; 12. an outer connecting table; 13. a side groove; 14. a guide post; 15. a guide groove; 16. and cooling the flow channel.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 to 4, a clinical pipetting high accuracy cavity blow molding mould, including last mould 1 with and with last mould 1 match lower mould 2, be provided with a plurality of blowing subassembly 3 in the lower mould 2, the intercommunication has a plurality of blow molding chamber 4 that is used for pipetting the shaping on every blowing subassembly 3, be equipped with logical groove 5 between every blowing subassembly 3 and the blowing chamber 4 that corresponds, be provided with insert 6 in the logical groove 5, insert 6 can move the upper surface that is close to or keeps away from lower mould 2 relative to lower mould 2, be formed with the inside groove 7 that is used for pipetting the shaping of pipette chamber between the upper end of insert 6 and the blow molding chamber 4.

In this embodiment, go up mould 1 and carry out the blowing step after the lower mould 2 compound die, be equipped with logical groove 5 between every blowing subassembly 3 and the blowing chamber 4 that corresponds, it is provided with insert 6 to lead to the inslot 5, insert 6 can move the upper surface that is close to or keeps away from lower mould 2 relatively lower mould 2, be formed with the inside groove 7 that is used for pipetting the shaping of straw cavity between the upper end of insert 6 and the blowing chamber 4, to the pipetting straw of different size capacity, change the size of inside groove 7 through the position of adjustment insert 6, and then adjust the capacity of pipetting the straw, have strong, simple and practical's advantage of regulation nature.

In this embodiment, each blow molding assembly 3 includes a plurality of air inlets 8 and a connection chamber 9 communicating the air inlets 8 with the blow molding cavity 4, the plurality of air inlets 8 are uniformly distributed at one end of the connection chamber 9, and the plurality of blow molding cavities 4 are distributed at the other end of the connection chamber 9.

Set up between air inlet 8 and blow molding chamber 4 and connect cavity 9, can make the gas that lets in reach stable back reentrant in connecting cavity 9 and blow molding chamber 4 again, guarantee the yield of product, repeatedly usable after the material in the cavity 9 of connecting is melted.

In the present embodiment, each of the intake ports 8 is tapered in order to increase the intake pressure, and the end of the intake port 8 having a smaller diameter faces the side of the connection chamber 9.

In order to improve the production efficiency, two blowing cavities 4 are connected to each blowing assembly 3, and the two blowing cavities 4 are arranged in parallel.

In the present embodiment, the blow cavity 4 includes an upper molding portion 10 and a molding passage 11 communicating the upper molding portion 10 with the connecting cavity 9, and the through groove 5 is opened at the position of the molding passage 11, and preferably, the width of the through groove 5 is greater than the distance between the molding passages 11 in the two blow cavities 4.

The adjustment of the volumes of the two blowing cavities 4 can be completed by adjusting the single insert block 6 in the through groove 5, the operation is convenient, the production efficiency is improved, the production error is reduced, and the precision of machining and forming is ensured.

In this embodiment, the side surface of the insert 6 is in sealing fit with the through groove 5, the upper end of the insert 6 has an arc-shaped surface matched with the forming channel 11, and the bottom end of the insert 6 is movably connected to the lower die 2.

In the process of up-and-down movement of the insert block 6, the side surface of the insert block 6 is in sealing contact with the inner surface of the through groove 5, and in order to achieve the sealing effect, a sealing ring sleeve can be sleeved on the side surface of the insert block 6.

The bottom of inserted block 6 is equipped with radial bellied outer joint table 12, and outer joint table 12 passes through bolt and lower mould 2 detachable connections, and simultaneously, the degree of feeding through the bolt reaches the height that the arc limit of regulation inserted block 6 upper surface rises, and for the dismouting of adjusting bolt and inserted block 6, be provided with the side channel 13 that is used for holding inserted block 6 on the bottom face of lower mould 2.

In order to improve the matching precision of the upper die 1 and the lower die 2, the lower die 2 is provided with a plurality of guide posts 14 protruding towards one side of the upper die 1, the upper die 1 is provided with guide grooves 15 for the guide posts 14 to penetrate, and when the upper die 1 and the lower die 2 are completely covered, the guide posts 14 are in clearance fit with the corresponding guide grooves 15.

In order to improve the demoulding efficiency of the formed pipetting tube, a plurality of cooling flow channels 16 are arranged on the upper die 1 and the lower die 2, the cooling flow channels 16 are horizontally arranged on the upper die 1 and the lower die 2, and the cooling flow channels 16 are used for introducing cooling liquid to accelerate the cooling of the product.

The utility model discloses a theory of operation does: the blow molding step is carried out after the upper mold 1 and the lower mold 2 are assembled, a through groove 5 is formed between each blow molding assembly 3 and the corresponding blow molding cavity 4, an insert block 6 is arranged in each through groove 5, the insert block 6 can move relative to the lower mold 2 to be close to or far away from the upper surface of the lower mold 2, an inner groove 7 for forming a liquid transfer suction pipe cavity is formed between the upper end of the insert block 6 and the blow molding cavity 4, for liquid transfer suction pipes with different sizes and capacities, the size of the inner groove 7 is changed by adjusting the position of the insert block 6, the capacity of the liquid transfer suction pipe is further adjusted, when the blow molding machine works, the air enters the connecting cavity 9 through the air inlet 8, the introduced air enters the blow molding cavity 4 after reaching stability in the connecting cavity 9, the finished product rate is guaranteed, and materials in the connecting cavity 9 can be reused after being melted.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms upper mold 1, lower mold 2, blow molding assembly 3, blow molding cavity 4, through slot 5, insert 6, internal groove 7, air inlet 8, connecting cavity 9, upper molding portion 10, molding channel 11, external connecting table 12, side slot 13, guide post 14, guide slot 15, cooling flow passage 16, etc., are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. The utility model provides a clinical pipetting high accuracy cavity blow molding mould, includes last mould (1) and lower mould (2) that match with last mould (1), lower mould (2) in be provided with a plurality of blow molding subassembly (3), every blow molding subassembly (3) on the intercommunication have a plurality of to be used for pipetting fashioned blowing chamber (4), its characterized in that, every blow molding subassembly (3) and corresponding blowing chamber (4) between be equipped with logical groove (5), logical groove (5) in be provided with inserted block (6), inserted block (6) lower mould (2) relatively move and be close to or keep away from the upper surface of lower mould (2), be formed with between the upper end of inserted block (6) and blowing chamber (4) and be used for pipetting cavity fashioned inside groove (7).

2. The clinical pipette high-precision hollow blow molding mold according to claim 1, wherein each blow molding assembly (3) comprises a plurality of air inlets (8) and a connecting chamber (9) for communicating the air inlets (8) with the blow molding cavities (4), the plurality of air inlets (8) are uniformly distributed at one end of the connecting chamber (9), and the plurality of blow molding cavities (4) are distributed at the other end of the connecting chamber (9).

3. Clinical pipette high precision hollow blow molding die according to claim 2, characterized in that each of the air inlets (8) is tapered, and the end of the air inlet (8) with smaller diameter faces the side of the connection chamber (9).

4. Clinical pipette high precision hollow blow molding die according to claim 1, characterized in that two blow molding cavities (4) are connected to each blow molding assembly (3), and the two blow molding cavities (4) are arranged in parallel.

5. Clinical pipette high accuracy hollow blow molding die according to claim 4, characterized in that each blow molding cavity (4) comprises an upper molding part (10) and a molding channel (11) connecting the upper molding part (10) and the connection chamber (9), and the through slot (5) is opened at the position of the molding channel (11).

6. Clinical pipette high precision hollow blow moulding mould according to claim 5, characterized in that the width of the through slot (5) is greater than the spacing between two moulding channels (11) in one and the same blow moulding assembly (3).

7. The clinical pipette high-precision hollow blow molding mold according to claim 5, wherein the side surface of the insert (6) is in sealing fit with the through groove (5), the upper end of the insert (6) is provided with an arc-shaped surface matched with the molding channel (11), and the bottom end of the insert (6) is movably connected to the lower mold (2).

8. The clinical pipette tip high-precision hollow blow molding mold according to claim 1, wherein the bottom end of the insert (6) is provided with an outer connecting platform (12) protruding in the radial direction, the outer connecting platform (12) is detachably connected with the lower mold (2) through bolts, and a side groove (13) for accommodating the insert (6) is formed in the bottom end surface of the lower mold (2).

9. The clinical pipette high-precision hollow blow molding mold according to claim 1, wherein the lower mold (2) is provided with a plurality of guide posts (14) protruding towards one side of the upper mold (1), and the upper mold (1) is provided with guide grooves (15) for the guide posts (14) to penetrate.

10. The clinical pipette high-precision hollow blow molding mold according to claim 1, wherein a plurality of cooling flow channels (16) are arranged on the upper mold (1) and the lower mold (2), and the plurality of cooling flow channels (16) are horizontally arranged on the upper mold (1) and the lower mold (2).