Plastic part back-off demolding mechanism

Abstract

The utility model relates to the technical field of demolding equipment, in particular to a plastic part inverted buckle demolding mechanism which comprises a demolding table and a top plate arranged above the demolding table, a water storage tank is embedded in the surface of the rear side of the demolding table, a lower mold hole is formed in the surface of the top of the demolding table, and a demolding mechanism is arranged at the bottom of the lower mold hole. A hydraulic rod and an injection molding pipe are arranged at the top of the top plate, a movable plate is arranged at the bottom of the top plate, a buffer pressure spring and a limiting column are fixedly mounted at the top of the movable plate, a water inlet and a water outlet are formed in the front side and the rear side of the movable plate in a penetrating mode correspondingly, and an upper mold hole is formed in the surface of the bottom of the movable plate. According to the plastic part upside-down demolding device, the plastic part upside-down demolding mechanism is arranged, so that the purpose of moving the mold base upwards is achieved through the structural design in the demolding mechanism, the plastic part can be conveniently separated from the lower mold hole, the demolding efficiency of the device is improved, and the manufacturing progress of the plastic part is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of demoulding equipment, in particular to an undercut demoulding mechanism for plastic parts. Background Art

[0002] The demoulding mechanism of plastic parts belongs to a kind of mold. Molds are various molds and tools used in industrial production to obtain the required 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, and this tool is composed of various parts.

[0003] The currently used inverted demoulding mechanism for plastic parts mostly requires manual operation when demoulding the plastic parts, and the demoulding efficiency is poor, which in turn affects the manufacturing progress of the plastic parts. At the same time, it uses a hydraulic rod to separate the upper and lower molds. During the separation process, it is easy to apply excessive stress to the plastic parts, causing the plastic parts to deform or break, thereby reducing the quality of the product and being unfavorable for subsequent use.

[0004] In summary, the utility model solves the above-mentioned problems in the background technology by designing an undercut demoulding mechanism for plastic parts. Utility Model Content

[0005] The purpose of the utility model is to provide a plastic part undercut demoulding mechanism to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The inverted demoulding mechanism for plastic parts comprises a demoulding platform and a top plate arranged above the demoulding platform, a water storage tank is embedded and installed on the rear side surface of the demoulding platform, a filling port and a circulating pump are fixedly arranged on the rear side surface of the water storage tank, a lower mold hole is opened on the top surface of the demoulding platform, a demoulding mechanism is arranged at the bottom of the lower mold hole, a hydraulic rod and an injection tube are arranged on the top of the top plate, a movable plate is arranged at the bottom of the top plate, a buffer compression spring and a limit column are fixedly installed on the top of the movable plate, a water inlet and a water outlet are respectively penetrated on the front and rear sides of the movable plate, an upper mold hole is opened on the bottom surface of the movable plate, and a water tank is opened inside the movable plate;

[0008] The demoulding mechanism includes a mold base and an installation bin, the mold base is arranged at the inner bottom end of the lower mold hole, the installation bin is opened inside the demoulding table, and a driving motor and a rotating screw are respectively arranged inside the demoulding mechanism, a main bevel gear is fixedly sleeved on the output end of the driving motor, a slave bevel gear is fixedly installed on the bottom end of the rotating screw, and a square moving column is sleeved on the outer top end of the rotating screw.

[0009] As a preferred solution of the utility model, the input end of the circulation pump is connected to the interior of the water tank, and the output end is connected to the water inlet through a pipe, and one end of the water outlet passes through the front surface of the water tank through a pipe.

[0010] As a preferred solution of the utility model, the water inlet and the water outlet are both connected to the inside of the water tank, and the water tank is wrapped around the outside of the upper mold hole.

[0011] As a preferred solution of the utility model, the telescopic end of the hydraulic rod passes through the top surface of the top plate and is fixed to the top side of the demolding table, the bottom end of the injection tube passes through the top surface of the top plate and the movable plate in turn and is fixedly extended to the top inner wall of the upper mold hole, and the outer surface of the injection tube is slidably connected to the inner wall of the top plate.

[0012] As a preferred solution of the utility model, the top end of the limit column slides through the bottom surface of the top plate and is provided with an anti-slip block located above it, and the buffer compression spring is sleeved on the outside of the limit column, and its top end is fixed to the bottom surface of the top plate.

[0013] As a preferred solution of the utility model, the main bevel gear and the slave bevel gear are vertically arranged and meshed with each other for transmission.

[0014] As a preferred solution of the utility model, the outer bottom end of the rotating screw is rotatably connected to the inner wall of the mounting bin through a rotating member, and its outer surface is threadedly connected to the inner wall of the square movable column, the top of the square movable column fits through the top inner wall of the mounting bin and extends to the inner bottom end of the lower mold hole, and its top is in contact with the bottom of the mold seat, and the outer surface of the mold seat is in sealing contact with the inner wall of the lower mold hole.

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

[0016] 1. In the utility model, by setting up the plastic part undercut demoulding mechanism, the structural design in the demoulding mechanism is utilized to realize the driving of the main bevel gear and the slave bevel gear by the driving motor, so that the rotating screw can be screwed with the square movable column thread, thereby achieving the purpose of moving the mold seat upward, facilitating the separation of the plastic part from the lower mold hole, improving the demoulding efficiency of the device, and ensuring the manufacturing progress of the plastic part.

[0017] 2. In the utility model, by setting up a plastic part inverted demoulding mechanism, the structural design of the buffer compression spring and the limit column is utilized to achieve the buffering stretching of the movable plate by the buffer compression spring, effectively reducing the upward stress exerted on the plastic part by the upward movement of the movable plate, thereby avoiding deformation or cracking of the plastic part, improving the quality of the product, and facilitating subsequent use. 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 structural schematic diagram of the movable plate of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the demoulding table of the utility model;

[0021] Figure 4 This is a schematic diagram of the bottom cross-sectional structure of the movable plate of the utility model;

[0022] Figure 5 It is a schematic diagram of the internal structure of the demoulding table of the utility model.

[0023] In the figure: 1. demoulding table; 2. top plate; 3. water tank; 301. filling port; 302. circulation pump; 4. lower mold hole; 5. demoulding mechanism; 501. mold base; 502. mounting bin; 503. driving motor; 5031. main bevel gear; 504. rotating screw; 5041. slave bevel gear; 505. square moving column; 6. hydraulic rod; 7. injection tube; 8. moving plate; 801. buffer compression spring; 802. limiting column; 803. water inlet; 804. water outlet; 805. upper mold hole; 806. water sink. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0028] For examples, see Figure 1-5 , the utility model provides a technical solution:

[0029] The inverted demoulding mechanism for plastic parts comprises a demoulding platform 1 and a top plate 2 arranged above the demoulding platform 1, a water storage tank 3 is embedded and installed on the rear side surface of the demoulding platform 1, a filling port 301 and a circulating pump 302 are fixedly arranged on the rear side surface of the water storage tank 3, a lower mold hole 4 is opened on the top surface of the demoulding platform 1, a demoulding mechanism 5 is arranged at the bottom of the lower mold hole 4, a hydraulic rod 6 and an injection tube 7 are respectively arranged on the top of the top plate 2, a moving plate 8 is arranged at the bottom of the top plate 2, a buffer compression spring 801 and a limiting column 802 are respectively fixedly installed on the top of the moving plate 8, an anti-slip block is arranged on the top of the limiting column 802, a water inlet 803 and a water outlet 804 are respectively penetrated on the front and rear sides of the moving plate 8, an upper mold hole 805 is opened on the bottom surface of the moving plate 8, and a water tank 806 is opened inside the moving plate 8;

[0030] Specifically, the input end of the circulation pump 302 is connected to the inside of the water storage tank 3, and the output end thereof is connected to the water inlet 803 through a pipeline, and one end of the water outlet 804 passes through the front surface of the water storage tank 3 through a pipeline, and the water inlet 803 and the water outlet 804 are both connected to the inside of the water tank 806, and the water tank 806 is wrapped around the outside of the upper mold hole 805;

[0031] In this embodiment, the circulating pump 302 is mainly used to guide the water in the water tank 3, so that the water flows into the water tank 806 through the water inlet 803 through the pipeline and is discharged from the water outlet 804, and the discharged water flows back to the water tank 3 through the pipeline. During the flow of the water, it can take away the heat inside the upper mold hole 805, thereby achieving the effect of quickly cooling the mold.

[0032] Specifically, the telescopic end of the hydraulic rod 6 penetrates the top surface of the top plate 2 and is fixed to the top side of the demolding platform 1, the bottom end of the injection tube 7 penetrates the top surface of the top plate 2 and the top surface of the movable plate 8 in sequence and is fixedly extended to the top inner wall of the upper mold hole 805, and the outer surface of the injection tube 7 is slidably connected to the inner wall of the top plate 2;

[0033] In this embodiment, the hydraulic rod 6 is mainly used to drive the top plate 2, so that the top plate 2 drives the movable plate 8 to gradually approach or separate from the demolding table 1, thereby achieving contact between the upper mold hole 805 and the lower mold hole 4, which is convenient for subsequent injection molding operations.

[0034] Specifically, the top end of the limiting column 802 fits and slides through the bottom surface of the top plate 2 and is provided with an anti-dropping block located above it, and the buffer compression spring 801 is sleeved on the outside of the limiting column 802, and its top end is fixed to the bottom surface of the top plate 2;

[0035] In the present embodiment, the setting of the limiting column 802 is mainly used to fit in contact with the top plate 2, so that the movable plate 8 and the top plate 2 can move smoothly, and the setting of the buffer compression spring 801 is mainly used to elastically support the movable plate 8, so that the movable plate 8 can be buffered and separated from the demolding table 1, effectively reducing the upward stress on the movable plate 8 when moving upward, and meeting the needs of users.

[0036] In this embodiment, please refer to Figure 3 and Figure 5 The demoulding mechanism 5 includes a mold base 501 and a mounting chamber 502. The mold base 501 is arranged at the inner bottom end of the lower mold hole 4. The mounting chamber 502 is opened inside the demoulding platform 1, and a driving motor 503 and a rotating screw 504 are respectively arranged inside. A main bevel gear 5031 is fixedly sleeved on the output end of the driving motor 503, and a slave bevel gear 5041 is fixedly installed on the bottom end of the rotating screw 504. A square moving column 505 is sleeved on the outer top end of the rotating screw 504.

[0037] Specifically, the main bevel gear 5031 and the slave bevel gear 5041 are vertically arranged and meshed with each other for transmission. The outer bottom end of the rotating screw 504 is rotatably connected to the inner wall of the installation bin 502 through a rotating member, and its outer surface is threadedly connected to the inner wall of the square movable column 505. The top of the square movable column 505 fits through the top inner wall of the installation bin 502 and extends to the inner bottom end of the lower die hole 4, and its top is in contact with the bottom of the die seat 501, and the outer surface of the die seat 501 is in sealing contact with the inner wall of the lower die hole 4.

[0038] In this embodiment, the type of driving motor 503 is a low-speed reciprocating locking motor. The driving motor 503 is mainly used to drive the main bevel gear 5031. Under the meshing transmission between the main bevel gear 5031 and the slave bevel gear 5041, the slave bevel gear 5041 drives the rotating screw 504 to rotate. Under the threaded connection between the rotating screw 504 and the square moving column 505, the square moving column 505 moves up along the inner wall of the demolding table 1 and drives the mold seat 501 to disengage from the lower mold hole 4, thereby achieving the effect of demolding the plastic parts.

[0039] The working process of the utility model is as follows: when the inverted demoulding mechanism of the plastic part is used, under the action of the hydraulic rod 6, the movable plate 8 is brought close to the demoulding platform 1, thereby realizing the contact between the upper mold hole 805 and the lower mold hole 4, and then the injection molding operation can be carried out toward the mold hole through the injection molding tube 7. When the injection molding is completed, the circulation pump 302 is started, and the circulation pump 302 guides the water in the water storage tank 3 to enter the water tank 806 through the water inlet 803, and then it is discharged from the water outlet 804 and returned to the water storage tank 3 through the pipeline. When the water flows through the water tank 806, it can take away the heat inside the upper mold hole 805, so as to realize the cooling and molding of the plastic part, and then the top plate 2 can be driven to move upward by the hydraulic rod 6, and the top plate 2 is driven to move by the buffer compression spring 801 The plate 8 moves upward, and under the action of the buffer compression spring 801, the movable plate 8 will not be subjected to excessive upper stress when moving upward, so that the upper mold hole 805 is slowly separated from the plastic part, avoiding deformation of the plastic part. Finally, the drive motor 503 is driven, and the output end of the drive motor 503 drives the main bevel gear 5031 to rotate, and the main bevel gear 5031 drives the slave bevel gear 5041 to rotate, and the slave bevel gear 5041 then drives the rotating screw 504 to rotate. Under the thread cooperation of the rotating screw 504 and the square movable column 505, the square movable column 505 gradually moves upward along the inner wall of the demolding table 1 and drives the mold base 501 to separate from the lower mold hole 4, thereby the demolding operation of the plastic part can be performed, meeting the needs of the user.

[0040] 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 these 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 plastic part undercut demoulding mechanism, comprising a demoulding platform (1) and a top plate (2) arranged above the demoulding platform (1), characterized in that: A water storage tank (3) is embedded and installed on the rear surface of the demoulding platform (1), and a filling port (301) and a circulating pump (302) are fixedly arranged on the rear surface of the water storage tank (3). A lower mold hole (4) is provided on the top surface of the demoulding platform (1), and a demoulding mechanism (5) is provided at the bottom of the lower mold hole (4). A hydraulic rod (6) and an injection tube (7) are provided on the top of the top plate (2). A movable plate (8) is provided at the bottom of the top plate (2), and a buffer compression spring (801) and a limit column (802) are fixedly installed on the top of the movable plate (8). A water inlet (803) and a water outlet (804) are respectively penetrated on the front and rear sides of the movable plate (8), and an upper mold hole (805) is provided on the bottom surface of the movable plate (8). A water tank (806) is provided inside the movable plate (8); The demoulding mechanism (5) comprises a mold base (501) and an installation chamber (502), wherein the mold base (501) is arranged at the inner bottom end of the lower mold hole (4), and the installation chamber (502) is opened inside the demoulding platform (1), and a driving motor (503) and a rotating screw (504) are respectively arranged inside the mold base (501), and a main bevel gear (5031) is fixedly sleeved on the output end of the driving motor (503), and a slave bevel gear (5041) is fixedly installed on the bottom end of the rotating screw (504), and a square movable column (505) is sleeved on the outer top end of the rotating screw (504).

2. The undercut demoulding mechanism for plastic parts according to claim 1, characterized in that: The input end of the circulation pump (302) is connected to the interior of the water storage tank (3), and the output end is connected to the water inlet (803) via a pipe, and one end of the water outlet (804) passes through the front surface of the water storage tank (3) via a pipe.

3. The undercut demoulding mechanism for plastic parts according to claim 1, characterized in that: The water inlet (803) and the water outlet (804) are both connected to the inside of the water tank (806), and the water tank (806) is arranged to wrap around the outside of the upper mold hole (805).

4. The undercut demoulding mechanism for plastic parts according to claim 1, characterized in that: The telescopic end of the hydraulic rod (6) passes through the top surface of the top plate (2) and is fixed to the top side of the demoulding platform (1); the bottom end of the injection tube (7) passes through the top surface of the top plate (2) and the top surface of the movable plate (8) in turn and is fixedly extended to the top inner wall of the upper mold hole (805); the outer surface of the injection tube (7) is slidably connected to the inner wall of the top plate (2).

5. The undercut demoulding mechanism for plastic parts according to claim 1, characterized in that: The top end of the limiting column (802) fits and slides through the bottom surface of the top plate (2) and is provided with an anti-slip block located above it; the buffer compression spring (801) is sleeved on the outside of the limiting column (802), and its top end is fixed to the bottom surface of the top plate (2).

6. The undercut demoulding mechanism for plastic parts according to claim 1, characterized in that: The main bevel gear (5031) and the slave bevel gear (5041) are arranged vertically and mesh with each other for transmission.

7. The undercut demoulding mechanism for plastic parts according to claim 1, characterized in that: The outer bottom end of the rotating screw (504) is rotatably connected to the inner wall of the installation bin (502) via a rotating member, and its outer surface is threadedly connected to the inner wall of the square movable column (505). The top end of the square movable column (505) fits through the top inner wall of the installation bin (502) and extends to the inner bottom end of the lower die hole (4), and its top is in contact with the bottom of the die seat (501). The outer surface of the die seat (501) is in sealing contact with the inner wall of the lower die hole (4).

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