CN215969854U

CN215969854U - Injection mold for bowl cover

Info

Publication number: CN215969854U
Application number: CN202122216563.2U
Authority: CN
Inventors: 沈良银
Original assignee: Anhui Dongyin Technology Co ltd
Current assignee: Anhui Dongyin Technology Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-03-08
Anticipated expiration: 2031-09-14

Abstract

The utility model relates to an injection mold for a bowl cover, which comprises a bottom plate, a movable demolding plate and a plurality of fixed connecting rods, wherein the movable demolding plate and the fixed connecting rods are arranged on the bottom plate, a lower injection molding template connected to the upper ends of the fixed connecting rods, and an upper injection molding template arranged right above the lower injection molding plate. This an injection mold for bowl lid, control when the drawing of patterns and remove stripper plate and upwards remove and drive the stripper rod and will remove the module jack-up, with shaping injection molding jack-up, the injection molding breaks away from with lower fixed module tentatively this moment, the in-process of jack-up, buffer gear receives the compression and with the gas outgoing in the gasbag, and because of removing the module when removing can and can form the clearance and no longer cover the air channel down between the fixed module, gas in the gasbag can discharge to the clearance that forms between removal module and the lower fixed module, the clearance is less this moment, impact force when gas pressurized flows is stronger, can tentatively break away from injection molding and removal module, the loaded down with trivial details step when reducing staff or machine and getting.

Description

Injection mold for bowl cover

Technical Field

The utility model belongs to the field of injection molds, and particularly relates to an injection mold for a bowl cover.

Background

Injection molding is a method for producing and molding industrial products. The products are generally produced by rubber injection molding and plastic injection molding. The injection molding can be classified into injection molding and die casting.

An injection molding machine (an injection machine or an injection molding machine for short) is a main molding device for making thermoplastic plastics or thermosetting materials into plastic products with various shapes by using a plastic molding die, and the injection molding is realized by the injection molding machine and the die.

With the updating and upgrading of tableware, the types of the bowl tableware are increasing day by day, the common dining bowls for carrying the portable food are also various, the bowl covers are mostly plastic parts, the production mode is mostly injection molding, and the shapes of the bowl covers are changed, so that most of the common molds for injection molding at present are designed to be a specified mode by setting an injection molding cavity in the mold for producing the bowl covers in the mode, but the molds cannot be conveniently adjusted, cannot be suitable for producing the bowl covers in different shapes, are complicated in demolding, and need to be manually or robotically used for separating the injection molding parts from the mold by external force.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide an injection mold for a bowl cover, which has a simple structure and reasonable design.

The utility model realizes the purpose through the following technical scheme:

an injection mold for bowl covers, which comprises a bottom plate, a movable stripper plate and a plurality of fixed connecting rods arranged on the bottom plate, a lower injection mold plate connected at the upper end of the fixed connecting rods, an upper injection mold plate arranged right above the lower injection mold plate, a middle connecting plate connected at the upper end of the upper injection mold plate and an upper connecting plate connected at the upper end of the middle connecting plate, the upper end surface of the lower injection molding plate and the lower end surface of the upper injection molding template are both provided with injection molding cavities, the injection molding cavity of the upper injection molding template is provided with a plurality of upper fixed modules, the injection molding cavity of the lower injection molding template is provided with a plurality of lower fixed modules and moving modules, the movable demoulding plate is connected with a demoulding rod, the upper end of the demoulding rod penetrates through the lower injection moulding template and is detachably connected with the movable module, an injection molding part forming cavity is formed among the upper fixing module, the lower fixing module and the moving module, and a plurality of reset mechanisms are connected between the moving demoulding plate and the lower injection moulding plate.

As a further optimization scheme of the utility model, the reset mechanism comprises a moving guide rod connected to the upper end of the moving stripper plate, an air bag sleeved outside the moving guide rod, an upper connecting ring plate and a lower connecting ring plate which are respectively connected to the upper end and the lower end of the air bag, and a reset spring sleeved outside the air bag, wherein the upper connecting ring plate is fixedly connected with the lower end surface of the lower injection mold plate, the lower connecting ring plate is fixedly connected with the upper end surface of the moving stripper plate, the lower injection mold plate is provided with a moving groove matched with the moving guide rod, the lower injection mold plate is provided with vent grooves at positions on two sides of the moving groove, the upper connecting ring plate is provided with air holes matched with the vent grooves, and the vent grooves are communicated with the inner space of the air bag through the air holes.

As a further optimized solution of the present invention, one end of the vent groove penetrates through the lower injection mold plate and is located below the moving module, and the lower end of the moving module covers the vent groove.

As a further optimization scheme of the utility model, the inner diameters of the upper connecting ring plate and the lower connecting ring plate are the same, and the inner diameter of the upper connecting ring plate is the same as the outer diameter of the moving guide rod.

As a further optimization scheme of the utility model, the bottom plate is provided with a through groove, the middle connecting plate is connected with a plurality of positioning guide rods, and the upper injection molding plate is provided with positioning holes matched with the positioning guide rods.

The utility model has the beneficial effects that:

1) in the utility model, the fixed module and the movable module can be arranged in the injection molding cavities of the upper injection molding template and the lower injection molding template according to self definition, only different modules need to be designed, and the whole mold does not need to be redesigned and manufactured, so that the cost for designing and manufacturing the mold is greatly reduced;

2) the movable demoulding plate is controlled to move upwards and drive the demoulding rod to jack the movable module to jack the molded injection molding part, the injection molding part is initially separated from the lower fixed module at the moment, the buffer mechanism is compressed and exhausts gas in the air bag in the jacking process, and a gap is formed between the movable module and the lower fixed module and does not cover the vent groove any more when the movable module moves, the gas in the air bag can be exhausted to the gap formed between the movable module and the lower fixed module, the gap is smaller at the moment, the gas is stronger when the gas flows under pressure, the injection molding part can be initially separated from the movable module under the impact force, and the fussy steps when a worker or a machine takes out the part are reduced;

3) the utility model has simple structure, high stability, reasonable design and convenient realization.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the reset mechanism of the present invention;

fig. 3 is a diagram of the finished bowl cover of the present invention.

In the figure: 1. a base plate; 101. a fixed connecting rod; 102. penetrating a groove; 2. moving the stripper plate; 201. a stripper bar; 3. a lower injection molding template; 301. a moving module; 302. a lower fixing module; 303. a moving groove; 304. a vent channel; 4. an injection molding template is arranged; 401. an upper fixing module; 5. a middle connecting plate; 6. an upper connecting plate; 601. positioning the guide rod; 7. a reset mechanism; 701. moving the guide rod; 702. an air bag; 703. a return spring; 704. an upper connecting ring plate; 705. and the lower connecting ring plate.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention; in the description of the present invention, the meaning of "plurality" or "a plurality" is two or more unless otherwise specified.

Example 1

As shown in FIGS. 1-2, an injection mold for a bowl cover comprises a bottom plate 1, a movable mold stripping plate 2 and a plurality of fixed connecting rods 101 arranged on the bottom plate 1, a lower injection mold plate 3 connected to the upper end of the fixed connecting rods 101, an upper injection mold plate 4 arranged right above the lower injection mold plate 3, a middle connecting plate 5 connected to the upper end of the upper injection mold plate 4 and an upper connecting plate 6 connected to the upper end of the middle connecting plate 5, wherein injection cavities are arranged on the upper end surface of a lower injection mold plate 3 and the lower end surface of the upper injection mold plate 4, a plurality of upper fixed modules 401 are arranged in the injection cavity of the upper injection mold plate 4, a plurality of lower fixed modules 302 and a plurality of movable modules 301 are arranged in the injection cavity of the lower injection mold plate 3, a mold stripping rod 201 is connected to the movable mold stripping plate 2, the upper end of the mold stripping rod 201 penetrates through the lower injection mold plate 3 and is detachably connected with the movable modules 301, the upper fixed modules 401, a plurality of movable modules are arranged in the upper fixed modules, A molding cavity for injection molding is formed between the lower fixed mold 302 and the movable mold 301, and a plurality of reset mechanisms 7 are connected between the movable stripper plate 2 and the lower injection mold plate 3.

The bottom plate 1 is provided with a through groove 102, the middle connecting plate 5 is connected with a plurality of positioning guide rods 601, and the upper injection molding template 4 is provided with positioning holes matched with the positioning guide rods 601.

When in injection molding, the mold is placed on an injection molding machine, wherein injection molding raw materials are conveyed to an injection molding cavity through a conveying pipeline, conveying holes matched with the conveying pipeline are formed in the lower injection molding plate 3 and the upper injection molding plate 4 and can be formed according to actual design, and the conveying holes are in the prior art and are not described again.

The upper fixing module 401, the lower fixing module 302 and the moving module 301 are placed according to the design of the injection molding part, wherein the moving module 301 needs to be connected with the demolding rod 201, the fixing module is connected with the inner wall of the injection molding plate and can be connected by connecting pieces such as connecting screws, the upper injection molding plate 4 and the lower injection molding plate 3 are tightly attached, raw materials are injected into a molding cavity of the injection molding part, and demolding treatment is carried out after the injection molding part is molded. The method is suitable for different injection-molded parts, and the injection-molded part in the application is shown in figure 3.

The reset mechanism 7 comprises a movable guide rod 701 connected to the upper end of the movable stripper plate 2, an air bag 702 sleeved outside the movable guide rod 701, an upper connecting ring plate 704 and a lower connecting ring plate 705 which are connected to the upper end and the lower end of the air bag 702 respectively, and a reset spring 703 sleeved outside the air bag 702, wherein the upper connecting ring plate 704 is fixedly connected with the lower end face of the lower injection molding plate 3, the lower connecting ring plate 705 is fixedly connected with the upper end face of the movable stripper plate 2, the lower injection molding plate 3 is provided with a moving groove 303 matched with the movable guide rod 701, the positions of the lower injection molding plate 3, which are positioned at two sides of the moving groove 303, are provided with vent grooves 304, the upper connecting ring plate 704 is provided with air holes matched with the vent grooves 304, and the vent grooves 304 are communicated with the inner space of the air bag 702 through the air holes.

One end of the vent groove 304 penetrates the lower injection mold plate 3 and is located below the moving module 301, and the lower end of the moving module 301 covers the vent groove 304.

The upper and lower

connection ring plates

704 and 705 have the same inner diameter, and the upper connection ring plate 704 has the same inner diameter as the outer diameter of the movement guide 701. The gas inside the airbag 702 can be prevented from entering the moving groove 303.

Control removal stripper plate 2 rebound and drive stripper rod 201 will move module 301 jack-up during the drawing of patterns, with shaping injection molding jack-up, the injection molding breaks away from with lower fixed module 302 tentatively this moment, the in-process of jack-up, canceling release mechanical system 7 is compressed and with the gas outgoing in gasbag 702, and can form the clearance and no longer cover air channel 304 between the fixed module 302 because of removing module 301 when removing, the gas in the gasbag 702 can be discharged to the clearance that forms between removal module 301 and the lower fixed module 302, the clearance is less this moment, the impact force when the gas pressurized flows is stronger, can break away from injection molding and removal module 301 tentatively, reduce the loaded down with trivial details step when staff or machine got the piece.

After demolding is finished, the return spring 703 rebounds and rebounds the movable demolding plate 2 to the initial position, the movable demolding plate 2 drives the demolding rod 201 and the movable module 301 to move in the same direction when moving, at this time, the lower connecting ring plate 705 connected to the lower end of the air bag 702 moves along with the movable demolding plate 2 and stretches the air bag 702, after the air bag 702 is stretched, air is sucked from the vent groove 304 until the movable module 301 covers and seals the vent groove 304 again, and at this time, the air bag 702 is filled with air so as to be used for next demolding.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. The utility model provides an injection mold for bowl lid which characterized in that: comprises a bottom plate (1), a movable stripper plate (2) and a plurality of fixed connecting rods (101) which are arranged on the bottom plate (1), a lower injection molding plate (3) which is connected with the upper end of the fixed connecting rods (101), an upper injection molding plate (4) which is arranged right above the lower injection molding plate (3), a middle connecting plate (5) which is connected with the upper end of the upper injection molding plate (4) and an upper connecting plate (6) which is connected with the upper end of the middle connecting plate (5), wherein the upper end surface of the lower injection molding plate (3) and the lower end surface of the upper injection molding plate (4) are both provided with injection molding chambers, a plurality of upper fixed modules (401) are arranged in the injection molding chamber of the upper injection molding plate (4), a plurality of lower fixed modules (302) and movable modules (301) are arranged in the injection molding chamber of the lower injection molding plate (3), the movable stripper plate (2) is connected with a stripper rod (201), and the upper end of the stripper rod (201) penetrates through the lower injection molding plate (3) and is detachably connected with the movable modules (301), an injection molding part forming cavity is formed among the upper fixing module (401), the lower fixing module (302) and the moving module (301), and a plurality of reset mechanisms (7) are connected between the moving demoulding plate (2) and the lower injection moulding plate (3).

2. An injection mold for bowl covers according to claim 1, characterized in that: the reset mechanism (7) comprises a movable guide rod (701) connected with the upper end of the movable stripper plate (2), an air bag (702) sleeved outside the movable guide rod (701), an upper connecting ring plate (704) and a lower connecting ring plate (705) respectively connected with the upper end and the lower end of the air bag (702), and a reset spring (703) sleeved outside the air bag (702), the upper connecting ring plate (704) is fixedly connected with the lower end surface of the lower injection molding template (3), the lower connecting ring plate (705) is fixedly connected with the upper end surface of the movable stripping plate (2), the lower injection molding template (3) is provided with a moving groove (303) matched with the moving guide rod (701), and the positions of the lower injection molding template (3) at the two sides of the movable groove (303) are both provided with vent grooves (304), the upper connecting ring plate (704) is provided with an air hole matched with the air groove (304), and the air groove (304) is communicated with the inner space of the air bag (702) through the air hole.

3. An injection mold for bowl covers according to claim 2, characterized in that: one end of the vent groove (304) penetrates through the lower injection molding template (3) and is positioned below the moving module (301), and the lower end of the moving module (301) covers the vent groove (304).

4. An injection mold for bowl covers according to claim 2, characterized in that: the inner diameters of the upper connecting ring plate (704) and the lower connecting ring plate (705) are the same, and the inner diameter of the upper connecting ring plate (704) is the same as the outer diameter of the moving guide rod (701).

5. An injection mold for bowl covers according to claim 1, characterized in that: the injection molding device is characterized in that a through groove (102) is formed in the bottom plate (1), the middle connecting plate (5) is connected with a plurality of positioning guide rods (601), and positioning holes matched with the positioning guide rods (601) are formed in the upper injection molding template (4).