Oblique core-pulling mechanism for mold for preparing plastic bucket

Abstract

The utility model discloses an inclined core-pulling mechanism aiming at a mould for preparing a plastic bucket, which comprises a rack, an upper mould base is arranged on the rack, a mould cavity is fixed at the bottom of the upper mould base, and the upper mould base is driven by an air cylinder arranged on the rack to lift; a lower die holder is fixed on the rack and located below the upper die holder, a die core is movably inserted into the lower die holder, a bottom frame is fixed on the rack, and the die core is driven by a core pulling assembly installed on the bottom frame to ascend and descend; the utility model relates to the technical field of plastic bucket molds, in particular to an inclined core pulling mechanism for preparing plastic bucket molds, which is characterized in that a mold core is arranged on the machine frame, and an inclined limiting mechanism is further arranged on the machine frame and used for limiting, clamping and fixing the plastic bucket molds on the mold core during core pulling. The problems that when an existing plastic bucket mold is prepared, after a plastic product is machined, the formed plastic product cannot be conveniently and rapidly demolded and taken out, the plastic product is prone to being attached to the inner wall of a mold base, and next forging is inconvenient are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bucket moulds, in particular to an oblique core-pulling mechanism for preparing plastic bucket moulds. Background Art

[0002] The traditional oblique core-pulling mold is mainly driven by the oil cylinder to drive the top plate, and the top plate drives the slider seat, and the slider seat is connected to the slider insert. In this way, the up and down movement of the oil cylinder drives the slider to demould and remove the undercut of the product structure.

[0003] This traditional mold has a complex structure and high cost, and requires the addition of auxiliary mechanisms such as oil cylinders and top plates. Moreover, during the oil cylinder process, due to the existence of unstable factors, the mechanism is damaged. In severe cases, the mold may be scrapped, affecting the production of plastic parts.

[0004] In order to solve the above problems, patent CN215472877U discloses a plastic mold oblique core pulling structure, which does not require the use of a cylinder to drive the slider, but instead uses a relatively stable and simple mechanical integrated structure. Since there is no need for repeated action of the cylinder, the production process is stable and reliable, and the mold structure is simple and the mold cost is relatively low.

[0005] The prior art has the following defects and shortcomings: when preparing a plastic bucket mold, it is not convenient to quickly demold and remove the molded plastic product after the plastic product is processed, and the plastic product is easy to adhere to the inner wall of the mold base, which is not convenient for the next forging. For this reason, we propose an oblique core pulling mechanism for preparing a plastic bucket mold. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides an oblique core-pulling mechanism for preparing a plastic bucket mold. By pulling the core of the plastic bucket mold, the utility model solves the problem that when preparing the existing plastic bucket mold, it is inconvenient to quickly demold and remove the molded plastic product after the plastic product processing is completed, and the plastic product is easy to adhere to the inner wall of the mold base, making it inconvenient to carry out the next forging.

[0007] To achieve the above purpose, the utility model is implemented by the following technical solutions: for preparing the oblique core-pulling mechanism of the plastic barrel mold, it includes a frame, an upper mold base is installed on the frame, a mold cavity is fixed at the bottom of the upper mold base, and the upper mold base is driven to rise and fall by a cylinder installed on the frame;

[0008] A lower die seat is fixed on the frame and below the upper die seat, a die core is movably inserted on the lower die seat, a bottom frame is fixed on the frame, and the die core is driven to rise and fall by a core pulling assembly installed on the bottom frame;

[0009] The frame is also provided with an oblique limiting mechanism for limiting, clamping and fixing the plastic barrel mold on the mold core when pulling the core.

[0010] Preferably, the cylinder is fixed on a frame, and the upper die base is fixed on a bottom end of the cylinder.

[0011] Preferably, an injection hole is provided on the upper mold base, and the injection hole is communicated with the interior of the mold cavity.

[0012] Preferably, the inner diameter of the mold cavity is matched with the outer diameter of the mold core, and the movable sleeve of the mold cavity is clamped on the mold core.

[0013] Preferably, the core pulling assembly comprises a screw rod threadedly connected to the base frame, the top end of the screw rod is fixedly connected to the mold core, and a rotating handle is fixed to the bottom end.

[0014] Preferably, the oblique limiting mechanism includes two electric telescopic rods fixed on the base frame and symmetrically distributed, the electric telescopic rods are arranged through the lower mold base, and the lower mold base is provided with two hinged rods symmetrically distributed on both sides of the mold core, one end of the hinged rod is hinged to the lower mold base, a slide rail is fixed to the bottom of the hinged rod, a slider slidably clamped on the slide rail is hinged to the top of the electric telescopic rod, and an arc-shaped limiting plate is fixed to the end of the hinged rod close to the mold core.

[0015] Preferably, a through hole is provided on the lower die base, and the electric telescopic rod is inserted through the through hole.

[0016] Beneficial Effects

[0017] The utility model provides an oblique core pulling mechanism for preparing a plastic bucket mold. Compared with the prior art, it has the following beneficial effects:

[0018] 1. The oblique core-pulling mechanism for preparing plastic bucket molds starts the cylinder to drive the mold cavity to move downward and is clamped on the mold core. The plastic raw material is injected into the mold through the injection hole. After the plastic bucket is cooled and formed, the cylinder is started to drive the mold cavity to lift upward, so that the mold cavity is quickly detached from the mold core, thereby achieving the purpose of rapid demoulding and high demoulding efficiency. In addition, the mold core is movably plugged into the lower mold base, and the handle is manually rotated to drive the screw rod to rotate on the bottom frame, driving the mold core to move downward, so that the mold core is pulled out of the plastic bucket mold, thereby achieving the purpose of rapid core pulling and demoulding, and high demoulding efficiency.

[0019] 2. The oblique core-pulling mechanism for preparing the plastic bucket mold is provided with an oblique limiting mechanism on the frame. The oblique limiting mechanism includes an electric telescopic rod, a hinged rod, etc. Starting the electric telescopic rod to extend and retract can drive the slider to slide on the slide rail, thereby driving the hinged rod to rotate and further driving the arc-shaped limiting plate to move to the mold core to fix it obliquely on both sides of the formed plastic bucket mold, so that the position of the plastic bucket mold can be fixed when the mold core is moved down and the core is pulled out, which is convenient for the mold core to be smoothly pulled out from the plastic bucket mold and improve the demoulding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the oblique limiting mechanism of the utility model;

[0022] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the core-pulling component of the utility model.

[0024] In the figure: 1. frame; 2. upper mold base; 3. mold cavity; 4. injection hole; 5. cylinder; 6. lower mold base; 61. through hole; 7. mold core; 8. base frame; 9. core pulling assembly; 91. screw rod; 92. handle; 10. oblique limiting mechanism; 101. electric telescopic rod; 102. hinged rod; 103. slide rail; 104. slider; 105. arc limiting plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 , the utility model provides two technical solutions:

[0027] Embodiment 1:

[0028] The oblique core-pulling mechanism for preparing a plastic barrel mold comprises a frame 1, an upper mold base 2 is installed on the frame 1, a mold cavity 3 is fixed at the bottom of the upper mold base 2, and the upper mold base 2 is driven to rise and fall by a cylinder 5 installed on the frame 1;

[0029] A lower die base 6 is fixed on the frame 1 and below the upper die base 2, a mold core 7 is movably inserted on the lower die base 6, a bottom frame 8 is fixed on the frame 1, and the mold core 7 is driven to rise and fall by a core pulling assembly 9 installed on the bottom frame 8;

[0030] The frame 1 is also provided with an oblique limiting mechanism 10 for limiting, clamping and fixing the plastic barrel mold on the mold core 7 when pulling the core.

[0031] Embodiment 2:

[0032] The main difference from the first embodiment is:

[0033] For the oblique core-pulling mechanism of preparing the plastic bucket mold, the cylinder 5 is fixed on the frame 1, and the upper mold base 2 is fixed on the bottom end of the cylinder 5. Starting the cylinder 5 can drive the upper mold base 2 to move downward and then drive the mold cavity 3 to move downward to set the mold cavity 3 on the mold core 7; the upper mold base 2 is provided with an injection hole 4, and the injection hole 4 is connected with the inside of the mold cavity 3. The hot molten plastic raw material is injected into the upper mold base 2 through the injection hole 4; the inner diameter of the mold cavity 3 is adapted to the outer diameter of the mold core 7, and the mold cavity 3 is movably set on the mold core 7. The cavity 3 is moved downwardly and sleeved to be connected to the mold core 7. The plastic raw material is injected into the mold through the injection hole 4, so that the plastic raw material can be cooled and formed into a plastic bucket mold inside the mold cavity 3; the core pulling assembly 9 includes a screw rod 91 connected to the bottom frame 8 by thread transmission. The top of the screw rod 91 is fixedly connected to the mold core 7, and a handle 92 is fixed to the bottom end. The handle 92 is manually rotated to drive the screw rod 91 to rotate on the bottom frame 8, and the mold core 7 is driven to move downward, so that the mold core 7 is pulled out of the plastic bucket mold; the oblique limiting mechanism 10 includes two fixed The electric telescopic rod 101 is symmetrically distributed on the bottom frame 8, and the electric telescopic rod 101 is set through the lower mold base 6. The lower mold base 6 is provided with two hinged rods 102 symmetrically distributed on both sides of the mold core 7. One end of the hinged rod 102 is hinged to the lower mold base 6, and a slide rail 103 is fixed to the bottom of the hinged rod 102. The top of the electric telescopic rod 101 is hinged with a slider 104 that is slidably connected to the slide rail 103. The end of the hinged rod 102 close to the mold core 7 is fixed with an arc-shaped limit plate 105. The electric telescopic rod 101 is started to extend and retract. It can drive the slider 104 to slide on the slide rail 103, thereby driving the hinge rod 102 to rotate and further driving the arc-shaped limiting plate 105 to move to the mold core 7 to fix it obliquely on both sides of the forming plastic bucket mold, so that when the mold core 7 is moved downward and the core is pulled out, the position of the plastic bucket mold can be guaranteed to be fixed, which is convenient for the mold core 7 to be smoothly pulled out from the plastic bucket mold; a through hole 61 is opened on the lower mold base 6, and the electric telescopic rod 101 is inserted into the through hole 61, and the electric telescopic rod 101 is limited by the through hole 61.

[0034] When the oblique core-pulling mechanism for preparing a plastic bucket mold is used, the cylinder 5 is started to drive the mold cavity 3 to move downward and the sleeve is clamped on the mold core 7, and the plastic raw material is injected into the mold through the injection hole 4. After the plastic bucket is cooled and formed, the cylinder 5 is started to drive the mold cavity 3 to lift upward, so that the mold cavity 3 is quickly removed from the mold core 7, thereby achieving the purpose of rapid demoulding and high demoulding efficiency. In addition, the mold core 7 is movably plugged into the lower mold base 6, and the handle 92 is manually rotated to drive the screw rod 91 to rotate on the bottom frame 8, driving the mold core 7 to move downward, so that the mold core 7 is pulled out of the plastic bucket mold, thereby achieving rapid core-pulling and demoulding. The purpose of the mold is to have high demoulding efficiency; in addition, the utility model sets an oblique limiting mechanism 10 on the frame 1, and the oblique limiting mechanism 10 includes an electric telescopic rod 101, a hinged rod 102, etc. Starting the electric telescopic rod 101 to extend and retract can drive the slider 104 to slide on the slide rail 103, thereby driving the hinged rod 102 to rotate and then driving the arc-shaped limiting plate 105 to move to the mold core 7 to form the plastic bucket mold on both sides and fix it obliquely, so that when the mold core 7 is moved down and the core is pulled out, the position of the plastic bucket mold can be fixed, which is convenient for the mold core 7 to be smoothly pulled out from the plastic bucket mold, thereby improving the demoulding quality.

[0035] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] 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. An oblique core pulling mechanism for preparing a plastic barrel mold comprises a frame (1), characterized in that: An upper die base (2) is installed on the frame (1), a die cavity (3) is fixed at the bottom of the upper die base (2), and the upper die base (2) is driven to rise and fall by a cylinder (5) installed on the frame (1); A lower die base (6) is fixed on the frame (1) and located below the upper die base (2); a die core (7) is movably plugged into the lower die base (6); a base frame (8) is fixed on the frame (1); and the die core (7) is driven to rise and fall by a core pulling assembly (9) installed on the base frame (8); The frame (1) is also provided with an oblique limiting mechanism (10) for limiting, clamping and fixing the plastic barrel mold on the mold core (7) when pulling the core.

2. The oblique core-pulling mechanism for preparing a plastic barrel mold according to claim 1, characterized in that: The cylinder (5) is fixed on the frame (1), and the upper die base (2) is fixed on the bottom end of the cylinder (5).

3. The oblique core-pulling mechanism for preparing a plastic bucket mold according to claim 1, characterized in that: The upper mold base (2) is provided with an injection hole (4), and the injection hole (4) is communicated with the interior of the mold cavity (3).

4. The oblique core-pulling mechanism for preparing a plastic barrel mold according to claim 1, characterized in that: The inner diameter of the mold cavity (3) is matched with the outer diameter of the mold core (7), and the mold cavity (3) is movably sleeved and clamped on the mold core (7).

5. The oblique core-pulling mechanism for preparing a plastic barrel mold according to claim 1, characterized in that: The core pulling assembly (9) comprises a screw rod (91) which is threadedly connected to the base frame (8); the top end of the screw rod (91) is fixedly connected to the mold core (7) and the bottom end is fixed with a rotating handle (92).

6. The oblique core-pulling mechanism for preparing a plastic barrel mold according to claim 1, characterized in that: The oblique limiting mechanism (10) comprises two electric telescopic rods (101) fixed on the base frame (8) and symmetrically distributed, the electric telescopic rods (101) being arranged to penetrate the lower die base (6), the lower die base (6) being provided with two hinged rods (102) symmetrically distributed on both sides of the die core (7), one end of the hinged rod (102) being hinged to the lower die base (6), a slide rail (103) being fixed to the bottom of the hinged rod (102), a slider (104) being hinged to the top end of the electric telescopic rod (101) and being slidably clamped on the slide rail (103), and an arc-shaped limiting plate (105) being fixed to one end of the hinged rod (102) close to the die core (7).

7. The oblique core-pulling mechanism for preparing a plastic barrel mold according to claim 6, characterized in that: The lower die base (6) is provided with a through hole (61), and the electric telescopic rod (101) is inserted through the through hole (61).

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