CN211942026U - Injection molding device for reducing gram weight - Google Patents

Abstract

The utility model relates to the field of plastic barrel production, and discloses a falling weight molding injection molding device, which comprises an injection molding machine body, wherein the injection molding machine body is provided with a plastic outlet which is connected with a material blank head, the material blank head comprises an inner ring column and a cylindrical outer ring column, a discharging gap is arranged between the outer ring column and the inner ring column, the two sides of the injection molding machine body close to the plastic outlet are connected with a blow molding head, the injection molding machine body is connected with two mold components in a sliding way, thermoplastic plastic flows out from the plastic outlet, the cross section of the inner ring column is provided with four grooves and four bulges, the four grooves and the four bulges at the edge of the inner ring column are arranged in a staggered way, so that the thermoplastic plastic flowing out from the discharging gap is thinner at the grooves and thicker at the bulges, the thermoplastic plastic is molded in a cavity and then is blown by the blow molding head, the finally formed plastic barrel wall thickness is reduced, the barrel edge thickness is, the weight bearing capacity of the plastic barrel is ensured while the gram weight is reduced, the used materials are reduced, the gram weight is reduced, and the materials are saved.

Description

Injection molding device for reducing gram weight

Technical Field

The utility model belongs to the technical field of plastic drum production and specifically relates to a fall gram weight shaping injection moulding device is related to.

Background

Currently, in the field of plastic drum production, injection molding or blow molding is generally performed by an injection molding machine. The plastic barrel is made up through such technological steps as extruding out or injection moulding to obtain tubular plastic parison, hot (or heating to softening state), demoulding, closing mould, introducing compressed air to the parison to make the parison closely contact with the inner wall of plastic barrel mould, cooling and demoulding. The plastic bucket comprises a bucket top 100, a bucket bottom 110 and four bucket walls 120, wherein the joint of every two bucket walls 120 is a bucket edge 150, the bucket top 100 is provided with a handle 130 and a bucket opening 140, the bearing capacity of the bucket edge 150 is larger when the plastic bucket bears the load, and the bucket bottom 110, the bucket walls 120 and the bucket top 100 do not bear the load generally.

Chinese patent with publication number CN208375814U discloses a plastic barrel body forming mold, which comprises an upper mold and a lower mold, wherein the lower mold is arranged below the upper mold, the upper mold is provided with a cavity for product forming, the cavity is provided with an injection port for injection molding, one side of the cavity is connected with two cylinders, the cavity is provided with a plurality of water pipes, and inlets and outlets of the water pipes are exposed outside the cavity; the die cavity comprises an outer die cavity frame, a middle die cavity frame and an inner die cavity frame which are sequentially arranged from outside to inside, the inner die cavity frame and the middle die cavity frame form a die cavity area for forming a product, the middle die cavity frame integrally extends into the outer die cavity frame, the upper part of the inner die cavity frame extends into the middle die cavity frame, and each water pipe is arranged in the outer die cavity frame and forms a rectangular frame in a surrounding mode. The utility model discloses a through circulating pipe cool off the fashioned die cavity of product fast, the product of being convenient for cools off fast, guarantees the quality of product, through with circulating pipe setting on the die cavity in the mould for this mould cooling effect is good, the practicality is strong.

The above prior art solutions have the following drawbacks: when the plastic barrel body forming die is used for producing the plastic barrel, the produced plastic barrel is thick in barrel wall, large in gram weight and large in plastic consumption.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fall gram weight shaping injection moulding device, it has the advantage that falls gram weight, save material to exist not enough to prior art.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a fall gram weight shaping injection moulding device, includes the organism of moulding plastics, the organism of moulding plastics is equipped with out and moulds the mouth, it is connected with the material blank head to go out to mould the mouth, the material blank head includes inner ring post and columniform outer ring post, the inner ring post is located the outer ring post, is equipped with ejection of compact clearance between outer ring post and the inner ring post, inner ring post cross section is equipped with four recesses and four archs, and recess and protruding crisscross cross section that forms the inner ring post that sets up, the organism of moulding plastics is close to the both sides of going out and moulding the mouth and is connected with the fixed plate, be connected with the cylinder on the fixed plate, the cylinder output is connected with the blowing head, the organism sliding connection that moulds plastics has two mould subassemblies, and mould subassembly is.

Through adopting above-mentioned technical scheme, fall gram weight shaping injection moulding device when producing plastic drum, thermoplastic flows out from the department of moulding plastics, when the material base head flows through, four recesses and four protruding crisscross settings at inner ring post border, make the thermoplastic who flows out from ejection of compact clearance thinner in the recess, it is thicker in protruding department, mold assembly is with thermoplastic in the die cavity shaping, again blow molding head blow molding, the plastic drum bucket wall thickness that finally forms reduces, bucket arris thickness increase, overall dimension and bearing capacity are unchangeable, the bearing capacity of plastic drum has been guaranteed when falling gram weight, and the material that uses reduces, fall gram weight and saved the material.

The present invention may be further configured in a preferred embodiment as: the fixed plate is connected with a plurality of montants, the fixed plate one end fixedly connected with limiting plate is kept away from to the cylinder output shaft, the limiting plate respectively with a plurality of montant sliding connection.

Through adopting above-mentioned technical scheme, through setting up the limiting plate respectively in montant sliding connection, be convenient for stabilize the position of blowing head for the blowing head is corresponding with the mould subassembly all the time, avoids the blowing head to produce the skew, is favorable to improving the qualification rate of the effect of moulding plastics and product.

The present invention may be further configured in a preferred embodiment as: the lower end face of the inner ring column is connected with a countersunk head bolt, and the other end of the countersunk head bolt is connected with the plastic outlet.

Through adopting above-mentioned technical scheme, through setting up countersunk head bolt, strengthened the connection steadiness of material blank head and play plastic mouth in the axial, be favorable to improving the effect of moulding plastics of plastic drum.

The present invention may be further configured in a preferred embodiment as: the outer wall of the outer ring column is connected with an annular plate, the annular plate comprises a first side plate and a second side plate, one end of the first side plate is hinged with one end of the second side plate, and the other end of the first side plate is connected with the other end of the second side plate through a bolt.

Through adopting above-mentioned technical scheme, through setting up the annular plate, the fastening material blank head of being convenient for improves the stability of material blank head, reduces the deviation that material blank head produced when the ejection of compact, the shaping of the follow-up plastic drum of being convenient for.

The present invention may be further configured in a preferred embodiment as: one side of the mold assembly, which is far away from the plastic outlet, is connected with a clamping plate matched with the cavity, and a push plate is connected to the clamping plate in a sliding manner.

Through adopting above-mentioned technical scheme, through setting up the cardboard, be convenient for remove the plastic drum after the shaping, the plastic drum after the mould subassembly die cavity shaping has unnecessary rim charge, through setting up the push pedal, is convenient for get rid of the rim charge from the plastic drum.

The present invention may be further configured in a preferred embodiment as: the machine body of moulding plastics is close to cardboard department and is equipped with the spacing groove, the both sides of the machine body of moulding plastics are equipped with the discharge gate, the spacing groove links to each other with the discharge gate.

Through adopting above-mentioned technical scheme, when the cardboard was opened, the plastic drum of getting rid of the rim charge removed the spacing inslot from cardboard department, and then promoted discharge gate department, through setting up the spacing groove, avoided the plastic drum to directly drop from the cardboard, was convenient for concentrate and collects.

The present invention may be further configured in a preferred embodiment as: the injection molding machine body is connected with a cutter, and the cutter is located under the material blank head.

Through adopting above-mentioned technical scheme, through setting up the cutter, tailor when the mould subassembly is cliied thermoplastic, the follow-up shaping of the plastic drum of being convenient for improves the qualification rate of product.

The present invention may be further configured in a preferred embodiment as: the injection molding machine body is provided with a waste material groove, the waste material groove is located below the limiting groove, and the waste material groove is connected with a waste material box.

Through adopting above-mentioned technical scheme, the rim charge after the push pedal is got rid of scatters to the waste material groove in, falls into the waste material case through the waste material groove again in, is convenient for carry out centralized processing to the rim charge.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the thermoplastic plastics flow out from the plastic outlet and flow through the material blank head, the four grooves and the four bulges on the edge of the inner ring column are arranged in a staggered manner, so that the thermoplastic plastics flowing out from the discharge gap are thinner at the grooves and thicker at the bulges, the thermoplastic plastics are molded in the cavity by the mold assembly and then blown by the blowing head, the thickness of the barrel wall of the plastic barrel is reduced, the thickness of the barrel edge is increased, the appearance size and the bearing capacity are unchanged, the bearing capacity of the plastic barrel is ensured while the gram weight is reduced, the used materials are reduced, the gram weight is reduced, and the materials are saved;

2. the limiting plates are arranged and are respectively connected with the vertical rods in a sliding manner, so that the position of the blow molding head is convenient to stabilize, the blow molding head always corresponds to the mold assembly, the blow molding head is prevented from deviating, and the injection molding effect and the qualification rate of products are improved;

3. set up the cardboard, be convenient for remove the plastic drum after the shaping, there is unnecessary rim charge in the plastic drum after the mould subassembly die cavity shaping, through setting up the push pedal, is convenient for get rid of the rim charge from the plastic drum.

Drawings

Fig. 1 is a schematic structural view of a plastic bucket in the background art.

Fig. 2 is a schematic view of the overall structure of the embodiment.

FIG. 3 is a schematic sectional view of the material blank head in the example.

Fig. 4 is a schematic view showing the attachment of the preform head to the ring plate.

In the figure, 100, the bucket top; 110. a barrel bottom; 120. a tub wall; 130. a handle; 140. a bung; 150. a barrel edge; 1. an injection molding machine body; 2. a plastic outlet; 3. a material blank head; 4. an inner ring column; 5. an outer ring column; 6. a discharge gap; 7. a groove; 8. a protrusion; 9. a fixing plate; 10. a cylinder; 11. a blow molding head; 12. a mold assembly; 13. a vertical rod; 14. a limiting plate; 15. a countersunk bolt; 16. an annular plate; 17. a first side plate; 18. a second side plate; 19. clamping a plate; 20. pushing the plate; 21. a limiting groove; 22. a discharge port; 24. a cutter; 25. a waste chute; 26. a waste bin.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2, for the utility model discloses a fall gram weight shaping injection molding device, including the organism 1 of moulding plastics, the organism 1 of moulding plastics is equipped with out and moulds mouthful 2, goes out to mould mouthful 2 and is connected with material blank head 3, and the organism 1 of moulding plastics is close to the both sides that go out to mould mouthful 2 and is connected with fixed plate 9, is connected with cylinder 10 on the fixed plate 9, and the cylinder 10 output is connected with blowing head 11, and the 1 sliding connection of organism of moulding plastics has two mould components 12, and mould component 12 is located out respectively and moulds mouthful 2 both sides and relative with blowing head 11, and mould component 12 is equipped with the.

Referring to fig. 2, fixed plate 9 is connected with a plurality of montants 13, and fixed plate 9 one end fixedly connected with limiting plate 14 is kept away from to cylinder 10 output shaft, limiting plate 14 respectively with a plurality of montants 13 sliding connection, be convenient for stabilize the position of blowing head 11 for blowing head 11 is corresponding with mould assembly 12 all the time, avoids blowing head 11 to take place the skew, is favorable to improving the qualification rate of the effect of moulding plastics and product.

Referring to fig. 2, thermoplastic falls from material blank head 3, and mould subassembly 12 opens and shuts and cliies thermoplastic, drags the first 11 below of blowing again and carries out the blowing, makes required plastics incomplete easily when dragging, and the organism 1 of moulding plastics is connected with cutter 24, and cutter 24 is located material blank head 3 under, through setting up cutter 24, cuts out when mould subassembly 12 cliies thermoplastic, and the follow-up shaping of the plastic drum of being convenient for improves the qualification rate of product.

Referring to fig. 2 and 3, the preform head 3 includes an inner ring column 4 and a cylindrical outer ring column 5, the inner ring column 4 is located in the outer ring column 5, a discharge gap 6 is provided between the outer ring column 5 and the inner ring column 4, the cross section of the inner ring column 4 is provided with four grooves 7 and four protrusions 8, the grooves 7 and the protrusions 8 are arranged alternately to form the cross section of the inner ring column 4, when the injection molding apparatus for drop-weight molding is used for producing a plastic barrel, thermoplastic plastics flows out from a plastic outlet 2, when the thermoplastic plastics flows through the preform head 3, the four grooves 7 and the four protrusions 8 at the edge of the inner ring column 4 are arranged alternately, so that the thermoplastic plastics flowing out from the discharge gap 6 are thinner at the grooves 7 and thicker at the protrusions 8, the mold assembly 12 molds the thermoplastic plastics in a cavity, and then the plastic barrel is formed by blow molding through the blow molding head 11, the barrel wall 120 corresponds to the grooves 7, the barrel edges 150 correspond to the protrusions 8, and the barrel wall 120 of the plastic barrel is, the thickness of the barrel edge 150 is increased, the external dimension and the bearing capacity are unchanged, the bearing capacity of the plastic barrel is ensured while the gram weight is reduced, the used materials are reduced, the gram weight is reduced, and the materials are saved.

Referring to fig. 2 and 4, the lower end face of the inner ring column 4 is connected with a countersunk head bolt 15, the other end of the countersunk head bolt 15 is connected with the plastic outlet 2, and the countersunk head bolt 15 is arranged, so that the connection stability of the material blank head 3 and the plastic outlet 2 in the axial direction is enhanced, and the injection molding effect of the plastic barrel is favorably improved. The outer wall of the outer ring column 5 is connected with a ring plate 16, the ring plate 16 comprises a first side plate 17 and a second side plate 18, one end of the first side plate 17 is hinged with one end of the second side plate 18, the other end of the first side plate is connected with the other end of the second side plate through a bolt, the blank head 3 is convenient to fasten, the stability of the blank head 3 is improved, the deviation of the blank head 3 generated during discharging is reduced, and the subsequent plastic barrel is convenient to form.

Referring to fig. 2, one side of the mold assembly 12 far away from the plastic outlet 2 is connected with a clamping plate 19 matched with the cavity, so that the plastic barrel after molding can be conveniently moved, a push plate 20 is slidably connected onto the clamping plate 19, redundant rim charge exists in the plastic barrel after the cavity of the mold assembly 12 is molded, and the rim charge can be conveniently removed from the plastic barrel by arranging the push plate 20. The injection molding machine body 1 is provided with a waste material groove 25, the waste material groove 25 is connected with a waste material box 26, the rim charge removed by the push plate 20 is scattered in the waste material groove 25, and then falls into the waste material box 26 through the waste material groove 25, so that the rim charge is conveniently subjected to centralized treatment. The produced finished plastic barrel has the advantages of unchanged overall dimension, stacking effect and bearing capacity. The part needing bearing force is thickened, and the part needing no bearing force is thinned. The material in the middle portion of the barrel wall 120 is divided into four barrel edges 150, so that the four barrel edges 150 are reinforced.

Referring to fig. 2, the organism 1 of moulding plastics is close to cardboard 19 department and is equipped with spacing groove 21, and the both sides of the organism 1 of moulding plastics are equipped with discharge gate 22, and spacing groove 21 links to each other with discharge gate 22, and when cardboard 19 was opened, the plastic drum of getting rid of the rim charge removed spacing groove 21 from cardboard 19 in, and then promoted discharge gate 22 department, through setting up spacing groove 21, avoided the plastic drum to directly drop from cardboard 19, was convenient for concentrate the collection to the plastic drum.

The implementation principle of the embodiment is as follows: thermoplastic flows out from plastic outlet 2, the head 3 of material blank that flows through falls from ejection of compact clearance 6, mould assembly 12 opens and shuts and cliies thermoplastic, cutter 24 cuts, four recess 7 and four protruding 8 crisscross settings at 4 borders of inner ring post are made, make the thermoplastic who flows out from ejection of compact clearance 6 thinner in recess 7, it is thicker in protruding 8 department, mould assembly 12 is with thermoplastic shaping in the die cavity, again through the blow molding of blow molding head 11, finally form the plastic drum, the bucket wall 120 thickness of plastic drum reduces, bucket arris 150 thickness increase, overall dimension and bearing capacity are unchangeable, the bearing capacity of plastic drum has been guaranteed when falling the grammes per square metre, and the material that uses reduces, fall the grammes per square metre and saved the material.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a fall gram weight shaping injection moulding device, includes injection moulding machine body (1), its characterized in that: the injection molding machine body (1) is provided with an injection molding port (2), the injection molding port (2) is connected with a material blank head (3), the material blank head (3) comprises an inner ring column (4) and a cylindrical outer ring column (5), the inner ring column (4) is positioned in the outer ring column (5), a discharge gap (6) is arranged between the outer ring column (5) and the inner ring column (4), the cross section of the inner ring column (4) is provided with four grooves (7) and four bulges (8), the grooves (7) and the bulges (8) are staggered to form the cross section of the inner ring column (4), the two sides of the injection molding machine body (1) close to the injection molding port (2) are connected with a fixed plate (9), the fixed plate (9) is connected with an air cylinder (10), the output end of the air cylinder (10) is connected with a blow molding machine body (11), the injection molding machine body (1) is slidably connected with two mold assemblies (12), and the mold assemblies (12) are respectively positioned on the two sides of the injection molding port (2, the mold assembly (12) is provided with a cavity.

2. The injection molding apparatus for reducing the weight of a plastic material as claimed in claim 1, wherein: the fixed plate (9) is connected with a plurality of vertical rods (13), one end of the cylinder (10) output shaft, which is far away from the fixed plate (9), is fixedly connected with a limiting plate (14), and the limiting plate (14) is respectively connected with the vertical rods (13) in a sliding manner.

3. The injection molding apparatus for reducing the weight of a plastic material as claimed in claim 1, wherein: the lower end face of the inner ring column (4) is connected with a countersunk head bolt (15), and the other end of the countersunk head bolt (15) is connected with the plastic outlet (2).

4. The injection molding apparatus for reducing the weight of a plastic material as claimed in claim 1, wherein: the outer ring column (5) outer wall is connected with annular plate (16), annular plate (16) include curb plate one (17) and curb plate two (18), and curb plate one (17) and curb plate two (18) one end are articulated, and the other end passes through bolted connection.

5. The injection molding apparatus for reducing the weight of a plastic material as claimed in claim 1, wherein: one side of the mold component (12) far away from the plastic outlet (2) is connected with a clamping plate (19) matched with the cavity, and the clamping plate (19) is connected with a push plate (20) in a sliding mode.

6. The injection molding apparatus of claim 5, wherein: the injection molding machine body (1) is provided with a limiting groove (21) near the clamping plate (19), two sides of the injection molding machine body (1) are provided with discharge ports (22), and the limiting groove (21) is connected with the discharge ports (22).

7. The injection molding apparatus for reducing the weight of a plastic material as claimed in claim 1, wherein: the injection molding machine body (1) is connected with a cutter (24), and the cutter (24) is positioned under the material blank head (3).

8. The injection molding apparatus for reducing the weight of a plastic material as claimed in claim 1, wherein: the injection molding machine is characterized in that the injection molding machine body (1) is provided with a waste material groove (25), the waste material groove (25) is located below the limiting groove (21), and the waste material groove (25) is connected with a waste material box (26).

Images