CN222175943U - A metal injection molding tooth-supporting product mold internal cutting device - Google Patents

Abstract

The utility model relates to the technical field of dies, in particular to an internal cutting device for a tooth supporting product die formed by metal injection, which comprises a moving block, an inclined block and a runner plate for cutting off pouring gate materials, wherein the moving block is provided with a T-shaped chute for slidably mounting the inclined block, the runner plate is slidably mounted on a die core plate I of the die, the die core plate I is fixedly provided with symmetrically distributed protruding blocks, the protruding blocks are provided with a plurality of die grooves for forming tooth supporting, and two sides of the runner plate are slidably arranged between the two protruding blocks. According to the internal cutting device, the runner plate which moves synchronously and horizontally along with the die closing movement is designed, the runner plate is communicated with the die cavity during die closing, the material is led into the die cavity, then the runner plate can cut off the pouring gate in the die separating process, smoothness of the pouring gate is guaranteed, normal die separating and closing operation of the die is not interfered, the processing stability of the die is guaranteed, the production efficiency of the die is improved, the production cost is reduced, the pouring gate excess material is not required to be manually trimmed, and the quality of a tooth supporting product is guaranteed.

Description

Tooth supporting product mould inscribing device for metal injection molding

Technical Field

The utility model relates to the technical field of dies, in particular to a die inscribing device for a tooth supporting product formed by metal injection.

Background

MIM injection molding products are formed by die processing, and the production of a gate is unavoidable during molding, and the normal procedure is to remove the blank after injection in a manual gate trimming mode, so that the efficiency of the manual mode is low and the quality is unstable.

In the prior art, the automatic cutting die for the disc-shaped pouring gate is disclosed in the application number CN201210353555.5 and comprises an upper fixing plate, a female die base plate, a pouring gate forming insert, a female die plate, a female die forming insert, a male die plate, a male die forming insert, a male die base plate, a thimble plate, a lower fixing plate, a top rod, a push plate which can be sleeved on the male die forming insert in an up-down movable manner, a push rod which is connected with the top rod and the push plate, a push rod which is movably arranged on the male die forming insert in a penetrating manner, a shutter which is connected between the female die plate and the male die plate, a first buckling machine component and a second buckling machine component.

However, in the prior art, as the automatic gate cutting die mentioned in the application number CN201210353555.5 has a complex structure, the gate cutting operation is complex, and residues remain in the gate cutting, so that the die production efficiency is reduced in the process of die injection molding, and therefore, a tooth supporting product die inscribing device for metal injection molding needs to be designed.

Disclosure of utility model

The utility model aims to provide a dental product mould inscribing device for metal injection molding, which aims to solve the problems in the prior art.

The aim of the utility model can be achieved by the following technical scheme:

The utility model provides a tooth product mould inscription device is propped in metal injection shaping, inscription device includes movable block, sloping block and is used for excision runner board of runner material, has seted up the T type chute that is used for the slidable mounting sloping block on the movable block.

The runner plate is slidably mounted on a first mold core plate of the mold, symmetrically-distributed protruding blocks are fixedly mounted on the first mold core plate, a plurality of mold grooves for forming supporting teeth are formed in the protruding blocks, and two sides of the runner plate slide between the two protruding blocks.

Further, the die comprises a first die plate and a second die plate, the first die plate is fixedly arranged on the first die plate, the second die plate is fixedly arranged on the second die plate, and the second die plate is communicated with the sprue bushing.

Furthermore, a first positioning block is fixedly arranged on two sides of the first template, a second positioning block is fixedly arranged on two sides of the second template, and the first positioning block is matched with the second positioning block in a clamping manner.

Further, a groove is formed in the first template, a moving block is slidably mounted in the groove, and the inclined block is fixedly connected with the second template.

Further, the material runner on the runner plate is communicated with the die cavity.

Further, a limiting plate for fixing the runner plate is fixedly arranged at one end of the first mold core plate.

The utility model has the beneficial effects that:

1. The internal cutting device is characterized in that a runner plate which moves synchronously and horizontally along with the die closing movement is designed, the runner plate is communicated with a die cavity during die closing, material is led into the die cavity, and then a runner plate can cut off a runner in the die separating process, so that smoothness of the runner is ensured;

2. The internal cutting device has a simple structure, can not interfere the normal mold separating and closing operation of the mold, ensures the processing stability of the mold, improves the production efficiency of the mold, reduces the production cost, does not need to manually trim gate excess materials, and ensures the quality of the tooth supporting product.

Drawings

The utility model is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a dental product mold according to the present utility model;

FIG. 2 is a cross-sectional view of a dental product mold of the present utility model;

FIG. 3 is a schematic view of a partial structure of a dental product mold of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3A according to the present utility model;

FIG. 5 is a flow channel of the present utility model schematic diagram of the plate structure.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a tooth product mould inscribing device is propped in metal injection molding, as shown in fig. 1-5, prop tooth product mould include template one and template two 2, install the mold core subassembly between template one and the template two 2, the mold core subassembly includes core one 3 and core board two, core board one 3 fixed mounting is on template one, core board two fixed mounting is on template two 2, and core board two communicates with the purt mouth, inject the material into the mold core subassembly.

The two sides of the first template 1 are fixedly provided with a first positioning block 11, the two sides of the second template 2 are fixedly provided with a second positioning block 21, and the first positioning block 11 is clamped with the second positioning block 21 to perform die assembly positioning matching.

A groove 12 is formed in the first template 1, a moving block 13 is arranged in the groove 12 in a sliding mode, a T-shaped chute 14 is formed in the moving block 13, an inclined block 22 is arranged in the T-shaped chute 14 in a sliding mode, the inclined block 22 is fixedly connected with the second template 2, and when the first template 1 and the second template 2 are separated, the inclined block 22 and the T-shaped chute 14 slide to control the moving block 13 to move to the outer side of the first template 1.

One end fixedly connected with runner board 15 of movable block 13, offered the material runner on the runner board 15, to the material of injection direction, runner board 15 slidable mounting is on mold core board one 3, and fixedly mounted has the lug 31 of symmetric distribution on mold core board one 3, has offered a plurality of die cavity on the lug 31, and the die cavity intussuseption shaping has a support tooth 32, and the both sides slip butt of runner board 15 is between two lugs 31.

The material runner on the runner plate 15 is communicated with the die cavity, the material is poured into the die cavity to form the production position supporting teeth 32, redundant material at the joint of the material runner and the die cavity can be cut off in the translation process of the runner plate 15 along with the moving block 13, the gate is cut off, the gate surface is kept smooth, and the injection gate inscribing treatment of the supporting teeth 32 is automated.

A limiting plate 33 is fixedly arranged at one end of the first mold core plate 3 and is used for limiting the runner plate 15 and preventing the runner plate 15 from being separated from the first mold core plate 3.

The working principle is as follows:

In the die assembly process, the first die plate 1 and the second die plate 2 are assembled, the inclined block 22 pushes the moving block 13, the runner plate 15 can be controlled to move into the first die plate 3, a material flow path is formed by the runner plate 15, the second die plate and the sprue gate, the material flow path guides the material into a die cavity, and then the supporting teeth 32 are formed.

During mold separation, the injection molding pouring gate is subjected to inscribing treatment through the inscribing device, the runner plate 15 is driven to slide through the moving block 13, the pouring gate is automatically inscribed, redundant materials of the pouring gate of a product are cut off, and then ejection and blanking are carried out on the product by utilizing the top.

The inscribing device carries out runner excision processing in production process, need not subsequent manual work and cuts the operation, improves production efficiency, saves the cost, improves product quality.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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 without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (6)

1. The inner cutting device of the tooth supporting product mould for metal injection molding is characterized by comprising a moving block (13), an inclined block (22) and a runner plate (15) for cutting off pouring gate materials, wherein a T-shaped chute (14) for slidably mounting the inclined block (22) is formed on the moving block (13);

The runner plate (15) is slidably mounted on a first die core plate (3) of the die, symmetrically-distributed protruding blocks (31) are fixedly mounted on the first die core plate (3), a plurality of die grooves for forming supporting teeth (32) are formed in the protruding blocks (31), and two sides of the runner plate (15) slide between the two protruding blocks (31).

2. The internal cutting device for the tooth supporting product mold for metal injection molding according to claim 1, wherein the mold comprises a first mold plate (1) and a second mold plate (2), the first mold plate (3) is fixedly arranged on the first mold plate (1), the second mold plate (2) is fixedly provided with the second mold plate, and the second mold plate is communicated with the sprue.

3. The internal cutting device for the dental product mold for metal injection molding according to claim 2, wherein the first positioning block (11) is fixedly arranged on two sides of the first template (1), the second positioning block (21) is fixedly arranged on two sides of the second template (2), and the first positioning block (11) is in clamping fit with the second positioning block (21).

4. The internal cutting device for the dental product mould for metal injection molding according to claim 2, wherein a groove (12) is formed in the first template (1), a moving block (13) is slidably arranged in the groove (12), and an inclined block (22) is fixedly connected with the second template (2).

5. The internal cutting device for the die of the dental product formed by metal injection according to claim 1, wherein the material runner on the runner plate (15) is communicated with the die cavity.

6. The internal cutting device for the die of the dental product formed by metal injection according to claim 1, wherein a limiting plate (33) for fixing a runner plate (15) is fixedly arranged at one end of the first die core plate (3).