Mold for foam box production

Abstract

The utility model discloses a mould for producing a foam box, which comprises an assembly cavity arranged in a mould base, a forming concave mould is arranged in the assembly cavity, a connecting seat is arranged at the upper end of the mould base, and the connecting seat is connected with the mould base in a clamping way; the cover plate is arranged above the mold base, a mold core part is arranged below the cover plate, the mold core part is matched with a forming female mold, an injection molding runner is arranged in the cover plate, and an injection molding nozzle is arranged at the upper end of the cover plate; the connecting blocks are arranged on the two sides of the cover plate, electric push rods are arranged below the two connecting blocks, the electric push rods are fixedly connected with the mold base and the connecting blocks, the female mold and the mold core arranged on the mold are movably installed, the corresponding female mold and the mold core are replaced when foam boxes of different shapes and specifications are produced, and the mold is convenient to use. The forming cavity formed between the female die and the die core can meet the production requirements of various foam boxes, the die does not need to be replaced, and the using effect of the die is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foam box production, in particular to a mold for foam box production. Background Art

[0002] Foam boxes refer to box-type packaging containers made of foam plastics. Plastic foam is a plastic with many tiny pores inside. It is used for food, beverages, clean vegetables, seafood, dairy products and other products that need to be transported in low temperature and refrigeration. It has the advantages of light weight, impact resistance, easy molding, water resistance, aging resistance, low temperature resistance, low price and wide application. Foam boxes need to be molded by molding molds during the production process; molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging molding, smelting, stamping and other methods. In short, molds are tools used to make molded objects.

[0003] The Chinese patent publication number is CN220576464U, and the authorization announcement date is March 12, 2024. A forming mold for foam box production includes a bottom plate, a support frame is fixedly installed on the top of the bottom plate, four telescopic rods are bolted to the top of the bottom plate, a concave mold is fixedly installed between the tops of the telescopic rods, and an ejector rod sleeved with the inside of the concave mold is fixedly installed on the top inner wall of the support frame. A convex mold is fixedly installed between the bottoms of the electric push rods, and a feed port is fixedly installed on the top of the convex mold. Grooves are opened on both sides of the concave mold, and racks are fixedly installed on the front inner wall and the rear inner wall of the groove. Motors are bolted to both sides of the support frame. This forming mold for foam box production can quickly form the foam box, with high production efficiency, simple structure, and reduced production costs.

[0004] The existing mold is equipped with a fixed die and a core, and the molding cavity formed between the die and the core cannot produce foam boxes of different shapes and specifications. When producing different foam boxes, the mold needs to be replaced, which increases production costs, reduces mold use efficiency, and cannot meet usage requirements. Utility Model Content

[0005] The purpose of the utility model is to provide a mold for the production of foam boxes, so as to solve the problem proposed in the above background technology that the existing mold is equipped with a fixed mold and a mold core, and the molding cavity formed between the mold and the mold core cannot produce foam boxes of different shapes and specifications. When producing different foam boxes, the mold needs to be replaced, which increases production costs, reduces mold use efficiency, and cannot meet usage requirements.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a mold for producing a foam box, comprising a mold base, and also comprising:

[0007] An assembly cavity is arranged inside the die base, a forming die is arranged inside the assembly cavity, and the forming die is movably connected to the die base, a connecting seat is arranged at the upper end of the die base, and the connecting seat and the forming die are arranged as one body, the connecting seat is connected with the die base by snapping, and the upper ends of the die base and the connecting seat are arranged flush;

[0008] A cover plate is arranged above the mold base, a core piece is arranged below the cover plate, and the core piece and the cover plate are connected by screws, the core piece is matched with the molding die, and a molding cavity is formed between the core piece and the molding die, an injection flow channel is arranged inside the cover plate, and the injection flow channel is arranged equidistantly around the outside of the core piece, an injection nozzle is arranged at the upper end of the cover plate, and the injection nozzle is connected to the injection flow channel;

[0009] A connecting block is arranged on both sides of the cover plate, two connecting blocks are provided, and the connecting blocks are fixedly connected to the cover plate, electric push rods are provided under the two connecting blocks, and the electric push rods are arranged on both sides of the mold base, and the electric push rods are fixedly connected to the mold base and the connecting block.

[0010] Preferably, threaded holes are provided on the side walls of the connecting seat, and the threaded holes are provided on both sides of the connecting seat, locking bolts are provided on both sides of the mold base, and the locking bolts are provided corresponding to the threaded holes, the locking bolts are provided through the mold base, and the locking bolts are threadedly connected to the connecting seat.

[0011] Preferably, a support column is provided at the bottom of the assembly cavity, and the support column is fixedly connected to the mold base, a groove is provided at the lower end of the molding die, and the groove is correspondingly arranged to the support column, and the support column is plugged into the molding die.

[0012] Preferably, a water inlet valve and a water drain valve are provided on one side of the mold base, and the water inlet valve and the water drain valve are fixedly connected to the mold base, and the water inlet valve and the water drain valve are connected to the assembly cavity.

[0013] Preferably, the outer wall of the forming die is provided with arcuate grooves, at least six arcuate grooves are provided, and the arcuate grooves are equidistantly arranged on the outer wall of the forming die.

[0014] Preferably, guide holes are provided at the four corners of the cover plate, and there are four guide holes. Guide rods are provided above the four corners of the mold base, and one end of the guide rod is fixedly connected to the mold base. The guide rod and the guide hole are set through, and the guide rod is slidably connected to the cover plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model device is provided with a core piece, an assembly cavity, a molding die, a connecting seat and a locking bolt. The core piece is connected to the cover plate by screws. The molding die is movably connected to the die seat through the assembly cavity. The connecting seat and the locking bolt limit the molding die installed in the assembly cavity to ensure the firmness of the installed molding die. The core piece is inserted into the molding die to form a molding cavity. The foam plastic is injected into the molding cavity to realize the foam box molding process. By replacing the core piece and the molding die, foam boxes of different shapes and specifications can be produced, thereby improving the use effect of the mold;

[0017] 2. The utility model device is provided with a water inlet valve, a drain valve and an arc groove. Water is injected into the assembly cavity from the water inlet valve to contact the molding die. The water absorbs the heat on the molding die. The arc groove increases the contact area between the molding die and the water, absorbs the heat on the molding die faster, and accelerates the heat dissipation of the molding die. The drain valve discharges the water in the assembly cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 For the utility model Figure 1 A partial enlarged view of area A;

[0021] Figure 4 This is a structural diagram of the forming die of the utility model;

[0022] Figure 5 This is a diagram showing the connection relationship between the connecting base and the mold base of the utility model;

[0023] Figure 6 It is a bottom view of the cover plate of the present utility model.

[0024] In the figure: 1. mold base; 2. cover plate; 3. mold core; 4. connecting block; 5. electric push rod; 6. water inlet valve; 7. drain valve; 8. assembly cavity; 9. locking bolt; 10. injection nozzle; 11. guide rod; 12. guide hole; 13. threaded hole; 14. molding die; 15. connecting seat; 16. groove; 17. support column; 18. injection flow channel; 19. arc groove. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figure 1-6The utility model provides an embodiment: a mold for producing a foam box, including a mold base 1, and also including:

[0027] An assembly cavity 8 is arranged inside the die base 1, a forming die 14 is arranged inside the assembly cavity 8, and the forming die 14 is movably connected to the die base 1, a connecting seat 15 is arranged at the upper end of the die base 1, and the connecting seat 15 and the forming die 14 are arranged as one body, the connecting seat 15 is connected with the die base 1 by snapping, and the upper ends of the die base 1 and the connecting seat 15 are arranged flush;

[0028] A cover plate 2 is arranged above the mold base 1, a core piece 3 is arranged below the cover plate 2, and the core piece 3 is connected to the cover plate 2 by screws, the core piece 3 is matched with a molding die 14, and a molding cavity is formed between the core piece 3 and the molding die 14, an injection flow channel 18 is arranged inside the cover plate 2, and the injection flow channel 18 is equidistantly arranged around the outside of the core piece 3, an injection nozzle 10 is arranged at the upper end of the cover plate 2, and the injection nozzle 10 is connected to the injection flow channel 18;

[0029] The connecting block 4 is arranged on both sides of the cover plate 2. Two connecting blocks 4 are provided and are fixedly connected to the cover plate 2. Electric push rods 5 are provided under the two connecting blocks 4 and are arranged on both sides of the mold base 1. The electric push rods 5 are fixedly connected to the mold base 1 and the connecting block 4.

[0030] When in use: select appropriate molding die 14 and core piece 3 to assemble and connect with mold base 1 and cover plate 2 respectively, drive electric push rod 5 to drive cover plate 2 to descend, fit cover plate 2 with mold base 1, inject foam plastic from injection nozzle 10 and injection channel 18 into molding cavity formed by core piece 3 and molding die 14 for shaping, lift cover plate 2 after shaping is completed, and take out the shaped foam box in the molding cavity.

[0031] See also Figure 1 , Figure 3 , Figure 4 and Figure 5 A threaded hole 13 is provided on the side wall of the connecting seat 15, and the threaded holes 13 are provided on both sides of the connecting seat 15. Locking bolts 9 are provided on both sides of the mold base 1, and the locking bolts 9 are correspondingly arranged with the threaded holes 13. The locking bolts 9 are through-set with the mold base 1, and the locking bolts 9 are threadedly connected with the connecting seat 15. The connecting seat 15 is limited by the locking bolts 9 and the threaded holes 13, thereby improving the firmness of the connection between the molding die 14 and the mold base 1.

[0032] See also Figure 2A support column 17 is provided at the bottom of the assembly cavity 8, and the support column 17 is fixedly connected to the mold base 1. A groove 16 is provided at the lower end of the molding die 14, and the groove 16 and the support column 17 are correspondingly arranged. The support column 17 is plugged into the molding die 14. The groove 16 and the support column 17 can not only play a positioning role for the molding die 14 loaded into the assembly cavity 8, but also play a supporting role for the molding die 14.

[0033] See also Figure 1 and Figure 2 A water inlet valve 6 and a drain valve 7 are provided on one side of the mold base 1, and the water inlet valve 6 and the drain valve 7 are fixedly connected to the mold base 1. The water inlet valve 6 and the drain valve 7 are connected to the assembly cavity 8. Water is injected into the assembly cavity 8 through the water inlet valve 6 to contact the forming die 14. The water absorbs the heat on the forming die 14 to accelerate the heat dissipation of the forming die 14. The drain valve 7 discharges the water in the assembly cavity 8.

[0034] See also Figure 4 The outer wall of the forming die 14 is provided with arc grooves 19, at least six arc grooves 19 are provided, and the arc grooves 19 are equidistantly arranged on the outer wall of the forming die 14. The arc grooves 19 increase the contact area between the forming die 14 and water, absorb the heat on the forming die 14 more quickly, and improve the heat dissipation efficiency of the forming die 14.

[0035] See also Figure 1 and Figure 3 Guide holes 12 are provided at the four corners of the cover plate 2, and there are four guide holes 12. Guide rods 11 are provided above the four corners of the mold base 1, and one end of the guide rod 11 is fixedly connected to the mold base 1. The guide rod 11 and the guide hole 12 are through-set, and the guide rod 11 is slidably connected to the cover plate 2, and the guide rod 11 and the guide hole 12 play a guiding and limiting role for the lifting cover plate 2.

[0036] Working principle: Select appropriate forming die 14 and core piece 3 to assemble and connect with die base 1 and cover plate 2 respectively, drive electric push rod 5 to drive cover plate 2 to descend, fit cover plate 2 with die base 1, inject foam plastic from injection nozzle 10 and injection channel 18 into the forming cavity formed by core piece 3 and forming die 14 to shape, inject water from water inlet valve 6 into assembly cavity 8 to contact with forming die 14, use water to absorb heat from forming die 14, arc groove 19 increases contact area between forming die 14 and water, absorbs heat from forming die 14 faster, speeds up heat dissipation of forming die 14, and drain valve 7 discharges water from assembly cavity 8.

[0037] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold for producing a foam box, comprising a mold base (1), characterized in that: Also includes: An assembly cavity (8) is arranged inside the mold base (1); a molding die (14) is arranged inside the assembly cavity (8); the molding die (14) is movably connected to the mold base (1); a connecting seat (15) is arranged at the upper end of the mold base (1); the connecting seat (15) and the molding die (14) are arranged as a whole; the connecting seat (15) is snap-connected with the mold base (1); and the upper ends of the mold base (1) and the connecting seat (15) are arranged flush; A cover plate (2) is arranged above the mold base (1); a core piece (3) is arranged below the cover plate (2); the core piece (3) and the cover plate (2) are connected by screws; the core piece (3) and the molding die (14) are matched with each other; a molding cavity is formed between the core piece (3) and the molding die (14); an injection molding flow channel (18) is arranged inside the cover plate (2); the injection molding flow channel (18) is arranged equidistantly around the outside of the core piece (3); an injection molding nozzle (10) is arranged at the upper end of the cover plate (2); and the injection molding nozzle (10) is connected to the injection molding flow channel (18); A connecting block (4) is arranged on both sides of the cover plate (2), two connecting blocks (4) are arranged, and the connecting blocks (4) are fixedly connected to the cover plate (2), electric push rods (5) are arranged below the two connecting blocks (4), and the electric push rods (5) are arranged on both sides of the mold base (1), and the electric push rods (5) are fixedly connected to the mold base (1) and the connecting block (4).

2. A foam box production mold according to claim 1, characterized in that: The side wall of the connecting seat (15) is provided with a threaded hole (13), and the threaded holes (13) are arranged on both sides of the connecting seat (15). Locking bolts (9) are arranged on both sides of the mold base (1), and the locking bolts (9) are arranged corresponding to the threaded holes (13). The locking bolts (9) and the mold base (1) are arranged to penetrate each other, and the locking bolts (9) are threadedly connected to the connecting seat (15).

3. A foam box production mold according to claim 1, characterized in that: A support column (17) is provided at the bottom of the assembly cavity (8), and the support column (17) is fixedly connected to the mold base (1); a groove (16) is provided at the lower end of the molding die (14), and the groove (16) and the support column (17) are arranged correspondingly; the support column (17) is plugged into the molding die (14).

4. A foam box production mold according to claim 1, characterized in that: A water inlet valve (6) and a water drain valve (7) are provided on one side of the mold base (1), and the water inlet valve (6) and the water drain valve (7) are fixedly connected to the mold base (1), and the water inlet valve (6) and the water drain valve (7) are connected to the assembly cavity (8).

5. The mold for producing a foam box according to claim 1, characterized in that: The outer wall of the forming die (14) is provided with arcuate grooves (19), at least six arcuate grooves (19) are provided, and the arcuate grooves (19) are arranged at equal distances on the outer wall of the forming die (14).

6. A foam box production mold according to claim 1, characterized in that: The cover plate (2) is provided with guide holes (12) at four corners, and there are four guide holes (12). The mold base (1) is provided with guide rods (11) above the four corners, and one end of the guide rods (11) is fixedly connected to the mold base (1). The guide rods (11) and the guide holes (12) are connected, and the guide rods (11) are slidably connected to the cover plate (2).

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