CN217968173U

CN217968173U - Mould runner structure

Info

Publication number: CN217968173U
Application number: CN202221746609.XU
Authority: CN
Inventors: 张金德
Original assignee: Yuhuan Shengjiu Mould Co ltd
Current assignee: Yuhuan Shengjiu Mould Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-12-06
Anticipated expiration: 2032-07-08

Abstract

The utility model provides a mould runner structure belongs to mould manufacturing technical field. It has solved the difficult scheduling problem that drops of current mould waste material. The mold runner structure comprises a blocky plate body, wherein a main runner, a branch runner and a cavity are arranged on the plate body, the main runner is communicated with the branch runner through the branch runner, the branch runner is communicated with the corresponding cavity through a communicating hole, each branch runner is provided with a protruding part protruding out of the bottom of the mold runner, and the height of the protruding part is smaller than the height of the groove depth of the branch runner to the notch of the mold runner. The utility model has the advantages of the waste material of being convenient for drops.

Description

Mould runner structure

Technical Field

The utility model belongs to the technical field of the mould is made, in particular to mould runner structure.

Background

Molds are tools used to make shaped articles, and the development level of mold production is one of the important signs of the machine manufacturing level.

The runner structure of the mold is the most important factor for determining the molding quality of the product, for example, chinese patent literature discloses a half hot runner mold for a disposable medical injection needle holder [ application number: 201820854649.3; authorization notice number: CN208305680U ], which comprises a fixed die component and a movable die component matched with the fixed die component, wherein a main runner and product cavities which are communicated with the main runner and distributed on the fixed die component are fixedly arranged on the fixed die component, the product cavities are distributed on the fixed die component in four equal-divided areas, each area is respectively provided with a branch runner communicated with each product cavity, and a flow dividing structure for dividing the main runner into flow and communicating each branch runner is arranged between each branch runner and the main runner.

Above-mentioned half hot runner mold of disposable medical injection needle file can improve production efficiency, saves the material, but has frictional force between waste material and the runner, and the pole body of waste material in the runner is straight, and the waste material need the deformation just can come off from the runner, and the process of coming off is smooth and easy inadequately, and the end of waste material is the taper shape moreover, and length is longer, is difficult for coming off, and the in-process that comes off also easily wears to wear and tear the runner.

Disclosure of Invention

The utility model aims at providing a mould runner structure that the waste material of being convenient for drops to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a mould runner structure, is including being massive plate body, the plate body on be equipped with total runner, subchannel, branch runner and die cavity, the total runner is linked together through subchannel and branch runner, branch runner is linked together through intercommunicating pore and corresponding die cavity, its characterized in that, each branch runner all has the bulge of protrusion in its tank bottom, the height of bulge is less than the tank bottom of branch runner to the height of its notch.

In the above mold runner structure, the protrusion is disposed near the communication hole, perpendicular to the branch runner, and in the shape of a trapezoid tooth.

In the above mold runner structure, the branch runner from the protrusion to the communication hole is in arc transition to the branch runner from the protrusion to the branch runner.

In the above mold runner structure, the lower hole wall of the communicating hole communicated with the outflow port of the cavity is a concave arc-shaped surface.

In the above mold runner structure, the communication hole is connected to the cavity in a downward inclined manner, and the aperture of the inlet of the communication hole is larger than the aperture of the outlet thereof.

In the above mold runner structure, the intersection of the branch runners and the corresponding branch runners forms a groove with a diameter larger than the width of the runner.

Compared with the prior art, the mold runner has the advantages of reasonable structural design, smooth falling of waste materials, good working stability and long-time normal work.

Drawings

Fig. 1 is a perspective view of the structure of the mold runner.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a front view structural view of the present mold runner structure.

Fig. 4 isbase:Sub>A structural sectional view of the sectionbase:Sub>A-base:Sub>A in fig. 3.

Fig. 5 is an enlarged view of a portion B in fig. 4.

Fig. 6 is a perspective view showing a scrap generated in the runner structure of the present mold.

Fig. 7 is a perspective view showing the structure of the end of the scrap generated by the runner structure of the present mold.

In the figure, 1, a plate body; 2. a main flow channel; 3. a shunt channel; 4. branch flow channels; 5. a cavity; 6. a communicating hole; 7. a projection; 8. an arc-shaped surface; 9. a groove; 10. and (4) waste materials.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-7, the mold runner structure includes a block-shaped plate body 1, a main runner 2, a branch runner 3, a branch runner 4 and a cavity 5 are arranged on the plate body 1, the main runner 2 is communicated with the branch runner 4 through the branch runner 3, the branch runner 4 is communicated with the corresponding cavity through a communication hole 6, each branch runner 4 is provided with a protrusion 7 protruding from the bottom of the mold runner, and the height of the protrusion 7 is smaller than the height from the bottom of the mold runner 4 to the opening of the mold runner.

This mould runner structure passes through the setting of bulge 7 for waste material 10 is close to the terminal department and forms a department sunken, and when waste material 10 atress like this, waste material 10 terminal department is easy to be out of shape, and waste material 10 terminal drops from a runner 4, intercommunicating pore 6 easily, and waste material 10 drops smoothly, makes the job stabilization nature of mould good, can normally work for a long time.

In more detail, the protruding part 7 is arranged close to the communicating hole 6, the protruding part 7 is perpendicular to the branch flow channel 4, and the protruding part 7 is in a trapezoidal tooth shape, so that the protruding part 7 is reasonable in position, the waste material 10 is easier to deform and bend when falling off, and the waste material 10 is smoother to fall off; the arc transition of the branch flow channel 4 from the bulge part 7 to the communicating hole 6 to the branch flow channel 4 from the bulge part 7 to the branch flow channel 3 is realized, so that the waste material 10 generated by the branch flow channel 4 is easy to deform and bend, and the waste material 10 can smoothly fall off; the communicating hole 6 communicates in the lower part pore wall of the egress opening of die cavity 5 for recessed arcwall face 8, and the terminal lower part of waste material 10 is convex arcwall face like this, and waste material 10 is terminal breaks away from in the communicating hole 6 easily, and waste material 10 drops more smoothly, and the communicating hole 6 can not worn and torn to the terminal arcwall face of waste material 10 moreover.

The communicating hole 6 is communicated with the cavity 5 in a downward inclined mode, the caliber of an inlet of the communicating hole 6 is larger than that of an outlet of the communicating hole, injection molding to the cavity 5 is smooth, the tail end of the waste material 10 at the communicating hole 6 is firmly connected with the waste material 10 at the branch flow channel 4, the situation that the tail end of the waste material 10 is clamped in the communicating hole 6 is avoided, and the waste material 10 falls off smoothly.

The intersection of the branch runners 3 and the corresponding branch runners 4 forms a groove 9 with the diameter larger than the groove width of the branch runner 3. The groove 9 enables materials to enter each branch flow channel 4 smoothly, the groove 9 also forms nodes of the waste materials 10, the structural strength of the waste materials 10 is improved, when the waste materials 10 fall off, the waste materials 10 generated by the branch flow channels 3 pass through the nodes, the waste materials 10 generated by the branch flow channels 4 and the communication holes 6 are easily taken out, and the waste materials 10 fall off smoothly.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a mould runner structure, is including being massive plate body (1), plate body (1) on be equipped with total runner (2), subchannel (3), branch runner (4) and die cavity (5), total runner (2) are linked together through subchannel (3) and branch runner (4), branch runner (4) are linked together through intercommunicating pore (6) and corresponding chamber, its characterized in that, each branch runner (4) all have bulge (7) in the bulge of its tank bottom, the tank bottom of bulge (7) highly is less than branch runner (4) to the height of its notch.

2. A mold flow channel structure according to claim 1, wherein said projections (7) are provided near the communicating hole (6), the projections (7) are perpendicular to the branch flow channel (4), and the projections (7) have a trapezoidal tooth shape.

3. A mold runner structure according to claim 2, wherein the branch runner (4) from the protrusion (7) to the communicating hole (6) is rounded to transition from the protrusion (7) to the branch runner (4) from the runner (3).

4. A mold flow channel structure according to claim 1, 2 or 3, characterized in that the lower hole wall of the communicating hole (6) communicating with the outlet of the cavity (5) is a concave arc surface (8).

5. A mold runner structure according to claim 4, characterized in that the communicating hole (6) is communicated with the cavity (5) obliquely downward, and the aperture of the inlet of the communicating hole (6) is larger than that of the outlet thereof.

6. A mould flow channel structure according to claim 5, characterised in that the junctions of the sub-flow channels (3) and the corresponding branch flow channels (4) form grooves (9) with a diameter larger than the width of the sub-flow channels (3).