Rapid demolding device for plastic bucket production

Abstract

The utility model discloses a quick demoulding device for plastic bucket production, which comprises a working table, four sliding chutes are arranged at the top end of the working table, sliding blocks are connected in the four sliding chutes in a sliding manner, and the top ends of the four sliding blocks are respectively and fixedly connected with a first lower mould base and a second lower mould base. Guide grooves are formed in the two sides of the first lower die base and the two sides of the second lower die base correspondingly. The electric hydraulic cylinder drives the upper die base to be separated, so that the guide plate slides in the guide grooves in the first lower die base and the second lower die base, vertical force generated by the electric hydraulic cylinder is changed into thrust in the horizontal direction in the sliding process, and the first lower die base and the second lower die base are separated; rapid demolding of the plastic bucket in the lower mold base is achieved, the situation that demolding is not easy due to adhesion between the surface of the plastic bucket and the interior of the lower mold base is avoided, the structure is simple, the demolding effect is good, the demolding speed is high, and the demolding efficiency of the plastic bucket is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic barrel processing, in particular to a rapid demoulding device for plastic barrel production. Background Art

[0002] Plastic barrels are not easy to break, rust-proof, and lightweight. They are also oil-resistant and resistant to strong corrosion. They are mostly used for packaging dangerous goods that require heat preservation, moisture-proof, pressure-resistant, and corrosion-resistant. Plastic barrels are mostly made of polyethylene, polypropylene, polyester and other plastics through blow molding, injection molding, blister molding, and rotational molding.

[0003] At present, the demoulding device installed in the mold for producing plastic barrels uses the elastic force of the spring to eject the cooled and formed plastic barrel from the bottom of the mold. However, since the barrel wall may adhere to the mold cavity when the plastic barrel is cooled, it is difficult for the plastic barrel to fall out of the mold cavity and needs to be taken out by staff, resulting in low demoulding efficiency. Utility Model Content

[0004] The utility model aims to provide a rapid demoulding device for producing plastic barrels to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rapid demolding device for the production of plastic barrels, comprising a workbench, the top of the workbench is provided with four slide grooves, the four slide grooves are slidably connected to the inside of each of the four slide grooves, the tops of the four slide blocks are respectively fixedly connected to a No. 1 lower mold base and a No. 2 lower mold base, guide grooves are provided on both sides of the No. 1 lower mold base and the No. 2 lower mold base, the top of the workbench is fixedly connected to a support frame, the bottom end of the support frame and the center position is fixedly connected to an electric hydraulic cylinder, the telescopic end of the electric hydraulic cylinder is fixedly connected to an upper mold base, two guide plates are fixedly connected to both sides of the upper mold base, and the four guide plates are respectively slidably arranged inside the four guide grooves.

[0006] As a further preferred embodiment of the present technical solution, a mold core is fixedly connected to the bottom end of the upper mold base at the center position, an annular groove is provided at the bottom end of the upper mold base at the edge position of the mold core, a demolding ring is movably inserted inside the annular groove, four circular through holes are penetrated through the top end of the upper mold base at the position of the annular groove, the interiors of the four circular through holes are connected with the interior of the annular groove, push rods are movably provided inside the four circular through holes, four connecting rods are fixedly connected to the bottom end of the support frame, and pressure rings are fixedly connected to the bottom ends of the four connecting rods.

[0007] As a further preferred embodiment of the present technical solution, the outer surfaces of the four push rods are sleeved with return springs, and the top ends of the four push rods are fixedly connected with limiting caps.

[0008] As a further preferred embodiment of the present technical solution, both side walls inside the four slide grooves are provided with limiting grooves, both sides of the four sliding blocks are fixedly connected with limiting blocks, and the outer surfaces of the eight limiting blocks are respectively slidably connected with the inside of the eight limiting grooves.

[0009] As a further preferred embodiment of the present technical solution, four positioning rods are fixedly connected to one side of the No. 1 lower die base, and four positioning grooves are opened on one side of the No. 2 lower die base, and the inner surfaces of the four positioning grooves are respectively plugged into the outer surfaces of the four positioning rods.

[0010] As a further preferred embodiment of the technical solution, one side of each of the four guide plates is rotatably connected to a roller, and the outer surfaces of the four rollers are respectively rolled with the insides of the four guide grooves.

[0011] As a further preferred embodiment of the present technical solution, blocking blocks are fixedly connected inside the four slide grooves and near the edge positions.

[0012] The utility model provides a rapid demoulding device for producing plastic barrels, which has the following beneficial effects:

[0013] (1) The utility model drives the upper mold base to separate by an electric hydraulic cylinder, so that the guide plate slides in the guide grooves on the No. 1 lower mold base and the No. 2 lower mold base, and changes the vertical force generated by the electric hydraulic cylinder into a thrust in the horizontal direction during the sliding process, so as to separate the No. 1 lower mold base and the No. 2 lower mold base, thereby realizing the rapid demolding of the plastic barrel in the lower mold base and avoiding the situation that the surface of the plastic barrel and the interior of the lower mold base are adhered and difficult to demold. The utility model has a simple structure, good demolding effect and fast demolding speed, and improves the demolding efficiency of the plastic barrel.

[0014] (2) In the process of the upper mold base moving through the utility model, the four push rods contact the pressure ring, converting the vertical upward force on the upper mold base into a thrust on the demolding ring, so that the demolding ring pushes the plastic barrel on the mold core to demold. The utility model has a simple structure, is easy to operate, and reduces the use of power devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model when the No. 1 lower die base, the No. 2 lower die base and the upper die base are separated;

[0017] Figure 3 It is an exploded schematic diagram of the structure of the No. 1 lower die base, the No. 2 lower die base and the workbench of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal structure of the upper die base of the utility model.

[0019] In the figure: 1. workbench; 2. slide; 3. slider; 4. lower die seat No. 1; 5. lower die seat No. 2; 6. guide groove; 7. guide plate; 8. roller; 9. upper die seat; 10. die core; 11. annular groove; 12. ejection ring; 13. circular through hole; 14. push rod; 15. support frame; 16. electric hydraulic cylinder; 17. connecting rod; 18. pressure ring; 19. reset spring; 20. limit cap; 21. positioning rod; 22. positioning groove; 23. limit block; 24. limit groove; 25. blocking block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figure 1-3 As shown, in this embodiment, a rapid demoulding device for producing a plastic barrel includes a workbench 1, four slide grooves 2 are provided at the top of the workbench 1, and sliders 3 are slidably connected inside the four slide grooves 2. The tops of the four sliders 3 are respectively fixedly connected to a No. 1 lower mold base 4 and a No. 2 lower mold base 5, and guide grooves 6 are provided on both sides of the No. 1 lower mold base 4 and the No. 2 lower mold base 5. A support frame 15 is fixedly connected to the top of the workbench 1, and an electric hydraulic cylinder 16 is fixedly connected to the bottom end of the support frame 15 and located at the center, and the telescopic end of the electric hydraulic cylinder 16 is fixedly connected to the upper mold base 9. Two guide plates 7 are fixedly connected to the two sides of the upper die base 9. The four guide plates 7 are respectively slidably arranged inside the four guide grooves 6. By setting the slide grooves 2 and the sliders 3, the No. 1 lower die base 4 and the No. 2 lower die base 5 can slide on the workbench 1. By setting the guide grooves 6 and the guide plates 7, the force generated by the movement of the upper die base 9 can be converted into a thrust for the No. 1 lower die base 4 and the No. 2 lower die base 5, so that the No. 1 lower die base 4 and the No. 2 lower die base 5 can be separated. By setting the electric hydraulic cylinder 16, the upper die base 9 can be driven to move.

[0022] like Figure 1 , Figure 2 and Figure 4 As shown, a mold core 10 is fixedly connected to the bottom end of the upper mold base 9 and located at the center position, an annular groove 11 is provided at the bottom end of the upper mold base 9 and located at the edge position of the mold core 10, and a demolding ring 12 is movably inserted inside the annular groove 11, and four circular through holes 13 are penetrated and opened at the top end of the upper mold base 9 and located at the position of the annular groove 11, and the interiors of the four circular through holes 13 are connected with the interior of the annular groove 11, and push rods 14 are movably arranged inside the four circular through holes 13, and four connecting rods 17 are fixedly connected to the bottom end of the support frame 15, and pressure rings 18 are fixedly connected to the bottom ends of the four connecting rods 17. By providing the pressure rings 18, the push rods 14 can be pushed to move when the upper mold base 9 is demolded, and by providing the demolding ring 12, the plastic barrel on the mold core 10 can be demolded.

[0023] like Figure 1 , Figure 2 and Figure 4 As shown, the outer surfaces of the four push rods 14 are sleeved with reset springs 19, and the tops of the four push rods 14 are fixedly connected with limiting caps 20. By setting the reset springs 19, the mold ring 12 can be reset, and by setting the limiting caps 20, the reset springs 19 can be prevented from falling off.

[0024] like Figure 3 As shown, limiting grooves 23 are provided on both side walls inside the four slide grooves 2, limiting blocks 24 are fixedly connected on both sides of the four slide blocks 3, and the outer surfaces of the eight limiting blocks 24 are slidably connected to the inside of the eight limiting grooves 23 respectively. By setting the limiting grooves 23 and the limiting blocks 24, the No. 1 lower die base 4 and the No. 2 lower die base 5 can be prevented from falling off, thereby improving stability.

[0025] like Figure 2 and Figure 3 As shown, four positioning rods 21 are fixedly connected to one side of the No. 1 lower die base 4, and four positioning grooves 22 are opened on one side of the No. 2 lower die base 5. The inner surfaces of the four positioning grooves 22 are respectively plugged into the outer surfaces of the four positioning rods 21. By setting the positioning rods 21 and the positioning grooves 22, the No. 1 lower die base 4 and the No. 2 lower die base 5 can be positioned, so that when the No. 1 lower die base 4 and the No. 2 lower die base 5 are merged, there will be no skewing.

[0026] like Figure 1 and Figure 4 As shown, one side of the four guide plates 7 is rotatably connected to a roller 8, and the outer surfaces of the four rollers 8 are respectively rolled with the inside of the four guide grooves 6. By setting the rollers 8, the friction between the guide plates 7 and the guide grooves 6 can be reduced and the service life can be improved.

[0027] like Figure 2 and Figure 3 As shown, blocking blocks 25 are fixedly connected inside the four slide grooves 2 and near the edge positions, which can facilitate the installation and disassembly of the No. 1 lower die base 4 and the No. 2 lower die base 5.

[0028] The utility model provides a rapid demoulding device for plastic barrel production, and the specific working principle is as follows:

[0029] After the injection molding of the plastic barrel is completed, the electric hydraulic cylinder 16 is started, and the electric hydraulic cylinder 16 drives the upper mold base 9 to separate, so that the guide plate 7 slides in the guide groove 6 on the No. 1 lower mold base 4 and the No. 2 lower mold base 5, and during the sliding process, the vertical upward force generated by the electric hydraulic cylinder 16 is changed into a thrust in the horizontal direction, so that the No. 1 lower mold base 4 and the No. 2 lower mold base 5 are separated, so that the injection-molded plastic barrel in the No. 1 lower mold base 4 and the No. 2 lower mold base 5 can be quickly demolded, and then the upper mold base 9 continues to move. When the four push rods 14 contact the bottom surface of the pressure ring 18, the vertical upward force exerted on the push rods 14 under the drive of the upper mold base 9 is converted into a thrust on the ejection ring 12, so that the ejection ring 12 pushes the plastic barrel on the mold core 10 to be demolded.

[0030] Although 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 rapid demoulding device for producing plastic barrels, comprising a workbench (1), characterized in that: The workbench (1) is provided with four slide grooves (2) at the top, and the four slide grooves (2) are slidably connected with sliders (3) inside, and the tops of the four sliders (3) are respectively fixedly connected with a No. 1 lower die base (4) and a No. 2 lower die base (5), and guide grooves (6) are provided on both sides of the No. 1 lower die base (4) and the No. 2 lower die base (5). The workbench (1) is fixedly connected with a support frame (15) at the top, and an electric hydraulic cylinder (16) is fixedly connected at the bottom and at the center of the support frame (15), and the telescopic end of the electric hydraulic cylinder (16) is fixedly connected with an upper die base (9), and two guide plates (7) are fixedly connected on both sides of the upper die base (9), and the four guide plates (7) are respectively slidably arranged inside the four guide grooves (6).

2. A rapid demoulding device for plastic barrel production according to claim 1, characterized in that: A mold core (10) is fixedly connected to the bottom end of the upper mold base (9) and located at the center position; an annular groove (11) is provided at the bottom end of the upper mold base (9) and located at the edge position of the mold core (10); a mold ejection ring (12) is movably inserted inside the annular groove (11); four circular through holes (13) are provided through the top end of the upper mold base (9) and located at the position of the annular groove (11); the interiors of the four circular through holes (13) are connected to the interior of the annular groove (11); push rods (14) are movably arranged inside the four circular through holes (13); four connecting rods (17) are fixedly connected to the bottom end of the support frame (15); and a pressing ring (18) is fixedly connected to the bottom ends of the four connecting rods (17).

3. A rapid demoulding device for plastic barrel production according to claim 2, characterized in that: The outer surfaces of the four push rods (14) are sleeved with return springs (19), and the top ends of the four push rods (14) are fixedly connected with limit caps (20).

4. A rapid demoulding device for plastic barrel production according to claim 3, characterized in that: The inner side walls of the four slide grooves (2) are provided with limit grooves (23), the two sides of the four slide blocks (3) are fixedly connected with limit blocks (24), and the outer surfaces of the eight limit blocks (24) are respectively slidably connected with the inner sides of the eight limit grooves (23).

5. A rapid demoulding device for plastic barrel production according to claim 4, characterized in that: One side of the No. 1 lower die seat (4) is fixedly connected with four positioning rods (21), and one side of the No. 2 lower die seat (5) is provided with four positioning grooves (22), and the inner surfaces of the four positioning grooves (22) are respectively plugged into the outer surfaces of the four positioning rods (21).

6. A rapid demoulding device for plastic barrel production according to claim 1, characterized in that: One side of each of the four guide plates (7) is rotatably connected to a roller (8), and the outer surfaces of the four rollers (8) are respectively arranged to roll with the inside of the four guide grooves (6).

7. A rapid demoulding device for producing plastic barrels according to claim 6, characterized in that: Blocking blocks (25) are fixedly connected inside the four slide grooves (2) and close to the edge positions.

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