CN222987434U

CN222987434U - Injection mold easy to demolding

Info

Publication number: CN222987434U
Application number: CN202421703472.9U
Authority: CN
Inventors: 雷政; 李国春
Original assignee: Anhui Ningguo Tiancheng Electrical Appliances Co ltd
Current assignee: Anhui Ningguo Tiancheng Electrical Appliances Co ltd
Priority date: 2024-07-18
Filing date: 2024-07-18
Publication date: 2025-06-17
Anticipated expiration: 2034-07-18

Abstract

The utility model discloses an injection mold easy to demold, which comprises a 匚 -shaped support frame, an upper mold arranged in the support frame in a sliding manner, and a lower mold arranged below the upper mold, wherein four corners of the bottom surface of the lower mold are respectively fixed with supporting legs, the top surface of the lower mold is provided with a product groove, and an ejection part is arranged below the lower mold; according to the utility model, the upper die and the lifting plate are driven to synchronously rise through the screw rod until the lifting plate rises to be in contact with the top plate, the top plate is pushed to drive the ejector rod and the ejector block to synchronously rise, and the product formed by cooling the product groove is gradually ejected.

Description

Injection mold easy to demolding

Technical Field

The utility model relates to the technical field of injection molds, in particular to an injection mold easy to demold.

Background

The injection mold is a tool for producing plastic products, is also a tool for endowing the plastic products with complete structures and accurate dimensions, is a processing method used when producing parts with complex shapes in batches, and particularly refers to a processing method for injecting heated and melted plastic into a mold cavity by an injection molding machine under high pressure, cooling and solidifying the plastic to obtain a formed product, wherein after the injection mold is completed, the mold is tightly attached before the mold, so that the demolding is inconvenient for operators, the existing demolding mechanism is troublesome in demolding during use, and the damage of the injection molded product is easy to cause.

The utility model provides an injection mold convenient to drawing of patterns, the operating personnel is placed the top of bed die in the time of producing and is made the inseparable laminating of two together, runs through the threaded rod in the fixed block of both sides inside later, carries out injection molding with the inseparable fixed of bed die and bed die together, after the completion of moulding plastics, the operating personnel opens the bed die through the handle, holds the handle at last, upwards promotes the connecting rod, can carry out drawing of patterns processing with the injection molding of bed die inside through the roof.

Although the problem that the demoulding mechanism of the existing mould is inconvenient to demould and easy to damage injection molding parts is solved, in actual operation, the problem that the injection molding parts are required to be manually opened after injection molding and cooling, then the injection molding parts are ejected by pushing the connecting plate, and in injection molding production, manual mould closing is required, so that the operation process is time-consuming and labor-consuming.

Disclosure of utility model

In order to solve the technical problem, the injection mold easy to demolding is provided, and the problems that in the prior art, after injection molding and cooling, an upper mold is required to be opened manually, then an injection molding part is ejected by pushing a connecting plate, and in addition, manual mold closing is required during injection molding production, and time and labor are wasted in the operation process are solved.

In order to achieve the aim, the technical scheme includes that the injection mold easy to demolding comprises a 匚 -shaped support frame, an upper mold arranged in the support frame in a sliding manner and a lower mold arranged below the upper mold, wherein four corners of the bottom surface of the lower mold are respectively fixed with supporting legs, a product groove is formed in the top surface of the lower mold, an ejection part is arranged below the lower mold, an injection molding opening is formed in the side wall of the upper mold, a discharge opening facing the product groove is formed in the bottom surface of the upper mold, and the injection molding opening is communicated with the discharge opening, and the injection mold is characterized by further comprising a cooperative part arranged on the inner side of the support frame;

The cooperation part comprises a lifting plate and two lead screws, wherein the lifting plate is arranged below the ejection part in a sliding manner, the two lead screws penetrate through the inner walls of the two sides of the lifting plate in a threaded manner respectively, the two ends of each lead screw are connected to the inner walls of the two ends of the supporting frame in a rotating manner respectively, a moving block is sleeved on each screw rod in a threaded manner, and the moving block is fixedly connected with the upper die.

Preferably, the top ends of the two lead screws are fixedly sleeved with belt pulleys, and a transmission belt is connected between the two belt pulleys.

Preferably, a motor is mounted on the top surface of the support frame, and an output shaft of the motor rotates to penetrate into the support frame and is fixed with one of the screw rods.

Preferably, the ejection component comprises a top plate arranged between the lower die and the lifting plate in a sliding manner, a plurality of ejector rods are fixed on the top surface of the top plate, the ejector rods penetrate into a product groove of the upper die in a sliding manner and are fixed with ejector blocks, and counter bores matched with the ejector blocks are formed in the bottom surface of the inner wall of the product groove.

Compared with the prior art, the utility model has the advantages that:

(1) Through the cooperation setting of ejecting part and cooperative parts, drive through the lead screw and go up mould and lifter plate and rise in step, until the lifter plate rises to contact with the roof, drive ejector pin and ejector block through promoting the roof and rise in step, along with the rising of ejector pin and ejector block gradually with the product of product tank cooling shaping ejecting, go up the mould and also rise to a take-up to the altitude this moment, can not prevent operating personnel to take out the injection molding product, then when carrying out injection molding production once more, when the lead screw drives the lifter plate and descends, the roof receives self gravity effect and can only follow down, and drive ejector pin and ejector block synchronous decline, until the ejector block descends to the counter bore inner wall bottom surface in with the product tank offset, so can need the manual work to open through last mould after the cooling of moulding plastics among the prior art, later through promoting with the ejecting of injection molding, and still need artifical compound die when injection molding production, the problem that the operation process is wasted time and energy.

(2) Through the setting of belt pulley and motor, when need carrying out the production of moulding plastics, accessible starter motor rotates and drives one of them lead screw and rotate, and the rotation of one of them lead screw has driven one of them belt pulley synchronous rotation, and the rotation of one of them belt pulley drives another belt pulley synchronous rotation through the belt pulley, and the rotation of two belt pulleys has driven two lead screw synchronous rotations, so can drive the synchronous corotation of lead screw through the positive and negative rotation of control starter motor, drives mould and lifter plate and rises or descend then.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a front elevational view of the cooperative parts of the present utility model in cooperative motion with an upper mold;

FIG. 3 is a front elevational view of the cooperative parts of the present utility model in cooperative motion with an ejection member;

FIG. 4 shows ejection according to the present utility model a sectional view of the component structure.

The reference numerals in the figures are:

1. A support frame; 2, an upper die, 3, a lower die, 4, a lifting plate, 5, a top plate, 6, supporting legs, 7, a motor, 8, a lead screw, 9, a moving block, 10, a belt pulley, 11, a push rod, 12 and a push block.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.

Referring to fig. 1 to 4, an injection mold easy to demold comprises a 匚 -shaped support frame 1, an upper mold 2 arranged in the support frame 1 in a sliding manner, and a lower mold 3 arranged below the upper mold 2, wherein four corners of the bottom surface of the lower mold 3 are respectively fixed with supporting legs 6, a product groove is formed in the top surface of the lower mold 3, an ejection part is arranged below the lower mold 3, an injection molding opening is formed in the side wall of the upper mold 2, a discharge opening facing the product groove is formed in the bottom surface of the upper mold 2, the injection molding opening is communicated with the discharge opening, and a cooperative part which is arranged on the inner side of the support frame 1 and used for providing kinetic energy for the ejection part is further included;

The ejection component comprises a top plate 5 arranged between the lower die 3 and the lifting plate 4 in a sliding manner, a plurality of ejector rods 11 are fixed on the top surface of the top plate 5, the ejector rods 11 penetrate into a product groove of the upper die 2 in a sliding manner and are fixedly provided with ejector blocks 12, and counter bores matched with the ejector blocks 12 are formed in the bottom surface of the inner wall of the product groove;

the cooperative part comprises a lifting plate 4 arranged below the ejection part in a sliding manner and two lead screws 8 which penetrate through the inner walls of the two sides of the lifting plate 4 respectively in a threaded manner, two ends of each lead screw 8 are respectively connected to the inner walls of the two ends of the supporting frame 1 in a rotating manner, a moving block 9 is sleeved on a rod of each lead screw 8 in a threaded manner, and the moving block 9 is fixedly connected with the upper die 2;

Through the cooperation setting of ejecting part and collaborative part, when needs carry out injection molding production, the accessible rotates two lead screws 8 and drives two movable blocks 9 and descend, the decline of movable block 9 has driven the cope match-die 2 and descends, in this process lifter plate 4 follows cope match-die 2 and descends in step, until cope match-die 2 descends to with lower mould 3 compound die, later liquefied plastics is injected through the injection molding mouth on the side wall of cope match-die 2, get into the product inslot of lower mould 3 through the discharge gate, then cooling design, at two lead screws 8 of counter-rotating, drive cope match-die 2 and lifter plate 4 through lead screw 8 rise in step, until lifter plate 4 rises to contact with roof 5, then continue to rise, drive ejector pin 11 and ejector block 12 rise in step through promoting roof 5, along with the rise of ejector pin 11 and ejector block 12 gradually with the product of product groove cooling shaping, cope match-die 2 also rises to a certain height this moment, and can not hinder the operating personnel and take out the injection molding product, later carry out injection molding production again, when 8 drive lifter plate 4 descends in the product inslot, then, the effect of roof 5 receives self weight and descends and drives ejector pin 11 and ejector plate 12 and can take time and take a lot of time and take place in the process of cooling down, and the required side wall is opened in the required to the cooling down in the artificial cooling process.

Further, referring to fig. 1 to 4, it should be noted that, the top ends of the two lead screws 8 are fixedly sleeved with belt pulleys 10, a driving belt is connected between the two belt pulleys 10, a motor 7 is installed on the top surface of the supporting frame 1, and an output shaft of the motor 7 rotates to penetrate into the supporting frame 1 and is fixed with one of the lead screws 8;

Through belt pulley 10 and motor 7's setting, when needs carry out injection molding production, accessible starter motor 7 rotates and drives one of them lead screw 8 and rotate, and one of them belt pulley 10 synchronous rotation has been driven in the rotation of one of them lead screw 8, and one of them belt pulley 10 rotates and drives another belt pulley 10 synchronous rotation through driving belt, and the rotation of two belt pulleys 10 has driven two lead screw 8 synchronous rotation, so can drive lead screw 8 synchronous positive and negative reversal through the positive and negative rotation of control starter motor 7, then drives mould 2 and lifter plate 4 and rise or descend.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an easy-to-demold injection mold, includes support frame (1) that is 匚 word-shaped, slide set up in last mould (2) in support frame (1) and set up in lower mould (3) of last mould (2) below, four corners of lower mould (3) bottom surface are fixed with landing leg (6) respectively, the top surface of lower mould (3) has seted up the product groove, the below of lower mould (3) is provided with ejection part, the injection molding mouth has been seted up on the lateral wall of last mould (2), the discharge gate just to the product groove is seted up to the bottom surface of last mould (2), communicate between injection molding mouth and the discharge gate, wherein still include set up in the cooperation part of support frame (1) inboard;

the cooperation part comprises a lifting plate (4) and two screw rods (8) which are arranged below the ejection part in a sliding manner and respectively penetrate through inner walls of two sides of the lifting plate (4), two ends of each screw rod (8) are respectively connected to inner walls of two ends of the supporting frame (1) in a rotating manner, a moving block (9) is sleeved on a rod of each screw rod (8) in a threaded manner, and the moving block (9) is fixedly connected with the upper die (2).

2. An injection mould easy to demould according to claim 1, characterized in that the top ends of the two screw rods (8) are fixedly sleeved with belt pulleys (10), and a transmission belt is connected between the two belt pulleys (10).

3. An injection mould easy to demould according to claim 1, characterized in that the top surface of the support frame (1) is provided with a motor (7), and the output shaft of the motor (7) rotates into the support frame (1) and is fixed with one of the screw rods (8).

4. The injection mold easy to demold according to claim 1, wherein the ejection part comprises a top plate (5) slidably arranged between the lower mold (3) and the lifting plate (4), a plurality of ejector rods (11) are fixed on the top surface of the top plate (5), the ejector rods (11) slidably penetrate into a product groove of the upper mold (2) and are fixed with ejector blocks (12), and counter bores matched with the ejector blocks (12) are formed in the bottom surface of the inner wall of the product groove.