CN219027212U - A die cavity mould for emery wheel production - Google Patents

Abstract

The utility model relates to the technical field of cavity molds, in particular to a cavity mold used for grinding wheel production. It includes an upper mold, a lower mold and a collar; the upper mold includes an upper mold and a mold core, and the mold core is fixedly connected with the upper mold; the lower mold is arranged below the upper mold and is opposite to the mold core; The lower mold includes a base plate and a positioning plate, the base plate is movably connected with the positioning plate; the center of the lower mold is provided with an axis column, and the axis column closely fits the mold core; the The collar is a plurality of collars with different diameters. The collar is installed between the upper mold and the lower mold. The positioning plate is provided with a positioning keyway, and the outer circumference of the collar is provided with a positioning key. The collar is fixedly connected to the positioning plate. In the production of grinding wheels, by adopting a modular assembly structure, molds of different sizes and cavities can be assembled according to the needs of grinding wheel production; the utilization rate of existing molds can be improved, costs can be saved, and energy conservation, environmental protection and energy conservation can be achieved.

Description

A cavity mold for grinding wheel production

technical field

The utility model relates to the technical field of cavity molds, in particular to a cavity mold used for grinding wheel production.

Background technique

Grinding wheel, as a kind of abrasive tool, has different types and specifications to meet different application needs. It is used for removing corners, solder joints, burrs, and burrs on the surface of different materials, and repairing uneven surfaces.

In the production of grinding wheels, the cavity mold is the working part that forms the outer surface of the plastic part. According to its structure, it can be divided into two types: integral type and combined type. The integral cavity mold is processed from a whole piece of metal material. Its characteristic is the structure Simple, high strength, good rigidity, not easy to deform, no seam marks on plastic parts, mainly suitable for small and medium-sized plastic parts with simple shapes; combined cavity mold is composed of multiple integral cavities combined and spliced, mainly used in plastic parts Plastic parts with complex shapes and high molding precision. Usually, a batch of molds corresponds to a certain type of prefabricated parts. After the production is completed, when the size of the new prefabricated parts is adjusted, the old batch of molds cannot be reused due to inconsistent sizes. The production demand of a new batch of prefabricated parts can only be met by making new molds, and the process of manufacturing new molds will inevitably increase a new round of energy consumption, produce new pollution to the production environment, and increase Production costs and waste of resources.

Therefore, how to improve the recycling rate of the cavity mold in the grinding wheel production process is worthy of research and improvement in terms of resource saving, energy saving and environmental protection.

Utility model content

The purpose of the utility model is to provide a cavity mold for grinding wheel production which is modular assembly type, high utilization rate, cost saving and easy to operate.

The technical scheme of the utility model is:

A cavity mold for grinding wheel production, including an upper mold, a lower mold and a collar; it is characterized in that: the upper mold includes an upper template and a mold core, and the mold core is fixedly connected with the upper mold; The lower mold is arranged below the upper mold and is opposite to the mold core; the lower mold includes a base plate and a positioning plate, and the base plate is movably connected with the positioning plate; the center of the lower mold is provided with an axis column, so that The above-mentioned axis column and the mold core are closely fitted; the above-mentioned collar includes a plurality of sizes with different diameters, and the above-mentioned collar is installed between the upper mold and the lower mold, and the positioning plate is provided with a positioning A keyway, a positioning key is arranged on the outer edge of the collar, and the collar is fixedly connected to the positioning plate.

Further, the collar is set in the inner cavity of the lower mold;

Further, the positioning keys of the collar are in one-to-one correspondence with the positioning key grooves on the positioning plate.

Further, the positioning keyway and the positioning key are both provided with mounting holes, and the positioning key is fixedly connected to the positioning keyway by screws.

Further, there is a sliding connection between the outer periphery of the bottom plate and the positioning plate, and the bottom plate can be locked and fixed on the positioning plate.

Further, the mold core is matched with the collar.

Further, there is a detachable connection between the axis column and the bottom plate of the lower mold.

Further, buffer pads are provided between the upper and lower dies, and between the collar and the upper and lower dies.

The beneficial effects of the utility model are:

1. By fitting collars of different sizes in the mold cavity to meet the production needs of grinding wheels with different diameters, the collar has a simple structure, is easy to process, and can be used repeatedly, saving production costs;

2. The detachable connection between the axis column and the bottom plate can only replace the axis column when producing grinding wheels with different inner diameters, which is convenient and flexible;

3. The bottom plate is slidingly connected with the positioning plate. By sliding the bottom plate upward or downward from the positioning plate, it is convenient for demoulding after production and improves work efficiency;

4. A detachable structure is adopted between the mold core and the upper plate, which is convenient for the production needs of the same diameter and different shapes in the grinding wheel production. The mold core can be replaced according to the demand, avoiding the replacement of the entire upper mold and reprocessing;

The upper and lower molds adopt a modular assembly structure, which can be assembled into molds of different sizes and cavities according to production needs; improve material utilization, save resources, and achieve the purpose of environmental protection and energy saving.

Description of drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic structural view without using a collar;

Fig. 3 is a schematic diagram of the top view structure of the collar;

Figure 4 is a schematic diagram of the top view of the positioning plate;

Fig. 5 is a schematic diagram of stacked rings with different diameters.

In the figure: 1, upper mold; 1-1, mold core; 1-2, upper template; 2, lower mold; 2-1, bottom plate; 2-2, positioning plate; 2-3, axis column; 2- 4. Positioning keyway; 3. Collar; 3-1. Positioning key.

Detailed ways:

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way serves as any limitation of the application, its application or uses. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

As shown in accompanying drawings 1 to 5, a cavity mold for grinding wheel production includes an upper mold 1, a lower mold 2 and a collar 3; the upper mold 1 includes an upper template 1-2 and a mold core 1- 1. The mold core 1-1 is fixedly connected to the upper template 1-2; the lower mold 2 is arranged below the upper template 1-2, opposite to the mold core 1-1; the lower mold 2 includes The base plate 2-1 and the positioning plate 2-2, the base plate 2-1 is flexibly connected with the positioning plate 2-2; the center of the lower mold 2 is provided with an axis column 2-3, and the axis column 2-3 is in close contact with the mold core 1-1; the axis column 2-3 can also play a role in positioning the mold core 1-1. The collar 3 is a plurality of collars 3 with different diameters, the collar 3 is installed between the upper mold 1 and the lower mold 2, and the positioning plate 2-2 is provided with a positioning The keyway 2-4, the outer edge of the collar 3 is provided with a positioning key 3-1, and the collar 3 is fixedly connected to the positioning plate 2-2.

The collar 3 is set in the inner cavity of the lower mold 2 according to the diameter of the product in different sizes. The collar 3 of different sizes is set in the mold cavity to meet the production requirements of grinding wheels with different diameters. The collar 3 is simple in structure, easy to process, and can be used repeatedly to save production costs; the positioning key of the collar 3 3-1 corresponds to the positioning keyway 2-4 on the positioning plate 2-2, the positioning keyway 2-4 and the positioning key 3-1 are all provided with mounting holes, and the positioning key 3-1 is fixed by screws Connect on the positioning keyway 2-4.

The outer periphery of the bottom plate 2-1 and the positioning plate 2-2 are connected by a sliding bar and a chute, so that the two are slidingly connected, and the bottom plate 2-1 can be locked and fixed on the positioning plate 2 by means of positioning pins, etc. -2, after the production is completed, the bottom plate 2-1 can be pulled by a tension machine and slide out of the positioning plate 2-2 along the positioning plate 2-2, and slide out from the bottom of the positioning plate 2-2 through the bottom plate 2-1, or in After the upper mold 1 and the collar 3 are disassembled, the bottom plate 2-1 is slid upwards out of the positioning plate 2-2, which is convenient for demoulding after the production is completed and improves work efficiency.

The size of the mold core 1-1 and the shape of the cavity can be customized and replaced according to product requirements, which is convenient for the production requirements of the same diameter and different shapes in the grinding wheel production. The mold core 1-1 can be replaced according to the demand, and the entire upper mold 1 can be avoided from reprocessing ; Such as some special-shaped grinding wheels, it can be realized by changing the shape of the core 1-1. The mold cores 1-1 of different sizes need to be matched with the corresponding collars 3 according to production requirements.

The shaft column 2-3 is detachably connected to the bottom plate 2-1 of the lower mold 2, and only the shaft column 2-3 can be replaced when producing grinding wheels with different inner diameters, which is convenient and flexible; The entire lower mold 2 saves costs while improving work efficiency; the connection between the axial column 2-3 and the lower mold 2 can be achieved by processing threaded holes at the bottom of the axial column 2-3, and the lower mold 2 is equipped with screws. Disconnect the connection.

Cushion pads are provided between the upper and lower molds 2 and between the collar 3 and the upper mold 1 and the lower mold 2, which can avoid excessive extrusion and collision during use and prolong the service life of the molds.

In specific use,

Firstly, determine the external dimensions of the grinding wheel, determine whether the collar 3 needs to be selected, and if the collar 3 is selected, determine the collar 3 corresponding to the outer diameter of the grinding wheel, and the mold core 1-1 used to match the collar 3; Then the collar 3 is added to the inner cavity of the lower mold 2 and fixed, and then the mold core 1-1 and the upper template 1-2 are fixed;

After the shaping is completed, the bottom plate 2-1 and the positioning plate 2-2 are unlocked, and according to actual needs, the bottom plate 2-1 can slide downward or upward along the positioning plate 2-2 to complete demoulding.

When products with different diameters are subsequently produced, it is only necessary to replace the corresponding collar 3 and mold core 1-1 without having to replace the entire set of molds, which improves the utilization rate of existing molds, saves material costs, and is energy-saving and environmentally friendly.

The above description is only a preferred embodiment of the present utility model, and the above illustrations do not limit the essence of the present utility model in any form. Those of ordinary skill in the technical field will follow the technology of the present utility model after reading this description. In essence, any simple modification or deformation made to the above specific implementation methods, as well as equivalent embodiments that may be changed or modified into equivalent changes using the technical content disclosed above, still belong to the scope of the technical solution of the present utility model without departing from Essence and scope of the present utility model.

Claims (8)

1. A cavity mold for grinding wheel production, comprising a patrix (1), a counterdie (2) and a collar (3); it is characterized in that: the patrix (1) comprises an upper template (1- 2) and mold core (1-1), described mold core (1-1) is fixedly connected with upper formwork (1-2); Described lower mold (2) is arranged on the below of upper mold (1), Opposite to the mold core (1-1); the lower mold (2) includes a bottom plate (2-1) and a positioning plate (2-2), and the bottom plate (2-1) and the positioning plate (2-2 ) is movably connected; the center of the lower die (2) is provided with an axis column (2-3), and the axis column (2-3) is tightly fitted with the mold core (1-1); the The collar (3) is a plurality of collars (3) with different diameters, and the collar (3) is installed between the upper mold (1) and the lower mold (2), and the positioning plate (2-2) is provided with a positioning keyway (2-4), and the outer edge of the collar (3) is provided with a positioning key (3-1), and the collar (3) is fixedly connected to the positioning plate (2-2 )superior. 2. A cavity mold for grinding wheel production according to claim 1, characterized in that: the collar (3) is set in the inner cavity of the lower mold (2). 3. A cavity mold for grinding wheel production according to claim 2, characterized in that: the positioning key (3-1) of the collar (3) and the positioning key (3-1) on the positioning plate (2-2) The keyways (2-4) correspond one to one. 4. A kind of cavity mold for grinding wheel production according to claim 3, characterized in that: said positioning keyway (2-4) and positioning key (3-1) are all provided with mounting holes, positioning The key (3-1) is fixedly connected on the positioning keyway (2-4) by screws. 5. A kind of cavity mold for grinding wheel production according to claim 1, characterized in that: the outer periphery of the base plate (2-1) and the positioning plate (2-2) are slidingly connected, and the base plate ( 2-1) Can be locked and fixed on the positioning plate (2-2). 6. A cavity mold for grinding wheel production according to claim 1, characterized in that: the mold core (1-1) is matched with the collar (3). 7. A cavity mold for grinding wheel production according to claim 1, characterized in that: between the shaft column (2-3) and the bottom plate (2-1) of the lower mold (2) For detachable connection. 8. A kind of cavity mold that is used for grinding wheel production according to claim 1, is characterized in that: between described upper die (1) and lower die (2), collar (3) and upper die ( 1) Cushion pads are provided between the lower mold (2).

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