CN220447045U - Injection molding tableware mold - Google Patents

Abstract

The utility model relates to the technical field of injection molding tableware forming equipment, in particular to an injection molding tableware mold. The die is formed by splicing at least two clack dies, the bottom of each clack die is connected with the bracket in a sliding mode, a movable ring is arranged on the upper portion of the bracket and sleeved on the outer side of the clack die, a boss is arranged on the inner side of the position where the movable ring is connected with the clack die, an arc-shaped limiting block is arranged on the outer side of the movable ring in a sliding mode, the limiting block is fixed on the upper side of the bracket, an outer tension spring is arranged between the bracket and the clack die, the pulling direction of the outer tension spring is the same as the corresponding die opening direction of the clack die, and the movable ring is connected with a rotary driving part in a transmission mode. The inner side of the movable ring is provided with the protruding part, and the protruding part is matched with the outer spring to realize synchronous die closing or die opening of a plurality of clack dies, so that the die opening and closing efficiency is improved.

Description

Injection molding tableware mold

Technical Field

The utility model relates to the technical field of injection molding tableware forming equipment, in particular to an injection molding tableware mold.

Background

Plastic injection molding is a common molding method of plastic products, and molten plastic is mainly injected into a plastic product mold by pressure when plastic tableware is molded, and various plastic tableware is obtained by cooling molding. Compared with metal tableware, the plastic tableware has stronger plasticity, can be molded into various shapes or patterns, and when the plastic tableware needing to be molded has complex curved surfaces and large-angle oblique edges, the molded tableware is easy to be in interference fit with the existing die, and the plastic tableware also causes that some tableware with complex curved surfaces and large-angle oblique edges are difficult to be demolded, so that products are damaged. The Chinese patent application with publication number of CN213533632U discloses a high-efficiency environment-friendly plastic tableware injection mold, which realizes the manual separation of the plate body of the injection mold through a plurality of arranged screws, and is time-consuming and labor-consuming and low in production efficiency.

Disclosure of Invention

The utility model aims to solve the technical problems, and provides an injection tableware mold, which aims to solve the problems of time and labor waste and low production efficiency of manual separation of the injection mold of plastic tableware by arranging a bulge on the inner side of a movable ring and matching with an outer spring to realize synchronous mold closing or mold opening of a plurality of split molds.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides an injection molding tableware mould, which comprises a bracket, the upper portion of bracket is equipped with the die, the die is formed by the amalgamation of two at least lamella moulds, the bottom and the bracket sliding connection of lamella mould, the upper portion of bracket is equipped with the rotating ring, the rotating ring cup joints in the outside of lamella mould, the position inboard that the rotating ring meets with the lamella mould is equipped with the bellying, the outside slip of rotating ring is equipped with curved stopper, the upper side at the bracket is fixed to the stopper, be equipped with outer extension spring between bracket and the lamella mould, the pulling force direction of outer extension spring is the same with the lamella mould die sinking direction that corresponds, the rotating ring transmission is connected with rotary drive portion.

According to the technical scheme, the lower portion of the outer side of the split die is provided with the supporting rib, the bottom of the supporting rib is provided with the dovetail, the upper side of the bracket is provided with the radial dovetail groove, the length direction of the dovetail groove is radial, the length direction of the dovetail groove is identical to the corresponding split die opening direction, and the split die is arranged in a sliding mode along the length direction of the dovetail groove through the arranged dovetail part.

Further optimizing this technical scheme, the outside of rotating ring is equipped with fan-shaped vortex tooth portion, and rotation driving portion fixes in the bracket, and rotation driving portion's output shaft has the worm, and worm and fan-shaped vortex tooth portion meshing transmission.

Further optimize this technical scheme, the middle part of bracket is equipped with the die block, and the die block slides in the bottom of die and sets up, and the bottom of bracket is equipped with the follow-up frame, is equipped with axial cam portion between follow-up frame and the die block, and the bottom of die block is equipped with interior extension spring, and interior extension spring is taut between die block and follow-up frame, and the upper portion and the rotating ring of follow-up frame are connected.

Compared with the prior art, the utility model has the following advantages: 1. the inner side of the movable ring is provided with a bulge part, and the bulge part is matched with an outer spring to realize synchronous die closing or die opening of a plurality of clack dies, so that the die opening and closing efficiency is improved; 2. the fan-shaped turbine tooth part is matched with the worm to realize power self-locking, so that the stability of equipment action is improved, and accidents are avoided; 3. the synchronous action of the bottom die is realized through the linkage of the axial cam and the movable ring, so that the action efficiency of the die is further improved, and time and labor are saved during use.

Drawings

FIG. 1 is a schematic view showing the external structure of an injection tableware mold;

FIG. 2 is a cross-sectional view of an injection molding tableware mold;

FIG. 3 is an exploded view of an injection molding cutlery mold;

FIG. 4 is a schematic view of an injection molding cutlery mold with two of the petals removed;

in the figure: 1. a valve mold; 11. a support rib; 12. a dovetail portion; 2. a bracket; 20. a limiting block; 21. a column; 22. a dovetail groove; 23. a limit guide groove; 3. a moving ring; 31. a boss; 4. a rotation driving part; 41. a worm; 42. a sector turbine tooth portion; 5. an outer tension spring; 6. a follow-up frame; 61. a tooth part; 7. a bottom die; 71. a groove portion; 72. a slider part; 8. an inner tension spring.

Detailed Description

The present utility model will be further described in detail with reference to the drawings in conjunction with the detailed description, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "a" and "an" or "the" and similar referents used in the specification and claims of the present application are not to be construed to limit the number of equivalents, but rather to mean that there is at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

Referring to fig. 1-4, an injection molding tableware mold comprises a bracket 2, wherein a female die is arranged on the upper portion of the bracket 2, the female die is formed by splicing three clack dies 1, bottoms of the three clack dies 1 are respectively connected with the upper portion of the bracket 2 in a sliding mode, supporting ribs 11 are arranged on the lower portion of the outer side of the clack dies 1, dovetail grooves 22 are radially arranged on the upper side of the bracket 2, the length direction of each dovetail groove 22 is radial, the mold opening directions of the clack dies 1 are radial and far away from the rotation axis of the female die, and the clack dies 1 are arranged in a sliding mode along the length direction of each dovetail groove 22 through the arranged dovetail parts 12.

The upper portion of bracket 2 is equipped with movable ring 3, movable ring 3 cup joints in the outside of lamella mould 1 and contacts with supporting rib 11, the position inboard that movable ring 3 contacted with supporting rib 11 is equipped with bellying 31, the outside slip of movable ring 3 is equipped with curved stopper 20, stopper 20 is fixed in the upside of bracket 2, stopper 20's upper portion is equipped with stand 21, the line between stand 21 and the supporting rib 11 is the same with the lamella mould 1 die sinking direction that corresponds, be equipped with outer extension spring 5 between stand 21 and the supporting rib 11, the pulling force direction of outer extension spring 5 is the same with the lamella mould 1 die sinking direction that corresponds, movable ring 3 transmission is connected with rotary drive portion 4, rotary drive portion 4 is the rotating electrical machines.

As shown in fig. 1, a sector turbine tooth portion 42 is provided on the outer side of the moving ring 3, the rotation driving portion 4 is fixed to the bracket 2, and an output shaft of the rotation driving portion 4 is connected to a worm 41, and the worm 41 is engaged with the sector turbine tooth portion 42.

As shown in fig. 2-3, the middle part of the bracket 2 is provided with a bottom die 7 which is axially opened up and down, the bottom die 7 is arranged at the bottom of the female die in a sliding way, the bottom of the bracket 2 is provided with a follow-up frame 6, an axial cam part is arranged between the follow-up frame 6 and the bottom die 7, the axial cam part comprises a convex tooth part 61 and a groove part 71, the convex tooth part 61 is annularly distributed at the upper side of the follow-up frame 6, and the groove part 71 is annularly distributed at the bottom of the side wall of the bottom die 7. An inner tension spring 8 is arranged on the inner side of the bottom die 7, the inner tension spring 8 is tensioned between the bottom die 7 and the follow-up frame 6, and the upper part of the follow-up frame 6 is detachably connected with the movable ring 3 through screws. The outer wall of the bottom die 7 is provided with a sliding block part 72, a limiting guide groove 23 is arranged at a position of the bracket 2 corresponding to the sliding block part 72, the length direction of the limiting guide groove 23 is the same as the die opening direction of the bottom die 7, and the sliding block part 72 is in sliding connection in the limiting guide groove 23.

When the plastic injection tableware is used, an injection molding cavity is formed by enclosing a female die, a bottom die 7 and a male die, the male die is not shown in a male die diagram as a structure known in the art, and the male die, the female die and the bottom die jointly enclose the injection molding cavity. As shown in fig. 1-3, during die assembly, the fan-shaped turbine in the driving part 4 is matched with the worm, the rotating ring 3 enables the protruding part 31 to be propped against between the rotating ring 3 and the supporting rib 11 of the die 1, at the moment, the outer tension spring 5 is stretched, die assembly of the die 1 in the female die is completed, the follow-up frame 6 rotates under the linkage of the rotating ring 3, and the protruding tooth part 61 and the groove part 71 are matched with the inner tension spring 8 to realize shrinkage of the bottom die 7. When the die is opened, the male die is firstly separated, the rotary driving part 4 is started to rotate the movable ring 3, the protruding part 31 is firstly separated from radial contact with the supporting rib 11, the die 1 is opened under the action of the tension of the external tension spring 5, the follower rack 6 rotates along with the movable ring 3, the follower rack 6 drives the convex tooth part 61 to rotate and the bottom die 7 is pushed upwards under the action of the groove part 71, and the internal tension spring 8 is stretched.

The control mode of the utility model is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of a person skilled in the art, which belongs to common knowledge in the art, so the utility model does not explain the control mode and circuit connection in detail.

Claims (4)

1. The utility model provides an injection molding tableware mould, includes bracket (2), the upper portion of bracket (2) is equipped with the die, the die is formed by at least two lamella mould (1) amalgamations, its characterized in that: the bottom of lamella mould (1) and bracket (2) sliding connection, the upper portion of bracket (2) is equipped with rotating ring (3), rotating ring (3) cup joint in the outside of lamella mould (1), rotating ring (3) with the position inboard that lamella mould (1) meets is equipped with bellying (31), the outside slip of rotating ring (3) is equipped with curved stopper (20), stopper (20) are fixed in the upside of bracket (2), bracket (2) with be equipped with outer extension spring (5) between lamella mould (1), the pulling force direction of outer extension spring (5) is the same with the valve mould (1) die sinking direction that corresponds, rotating ring (3) transmission is connected with rotary drive portion (4).

2. An injection tableware mold as claimed in claim 1, wherein: the outer lower part of the valve die (1) is provided with a supporting rib (11), the bottom of the supporting rib (11) is provided with a dovetail (12), the upper side of the bracket (2) is provided with a radial dovetail (22), the length direction of the dovetail (22) is radial, and the length direction of the dovetail is the same as the die opening direction of the corresponding valve die (1), and the valve die (1) is arranged in a sliding manner along the length direction of the dovetail (22) through the arranged dovetail (12).

3. An injection tableware mold as claimed in claim 1, wherein: the outside of moving ring (3) is equipped with fan-shaped vortex tooth portion (42), rotary drive portion (4) are fixed in bracket (2), the output shaft of rotary drive portion (4) is connected with worm (41), worm (41) with fan-shaped vortex tooth portion (42) meshing transmission.

4. An injection tableware mould according to any one of claims 1 to 3, characterised in that: the middle part of bracket (2) is equipped with die block (7), die block (7) are in the bottom slip setting of die, and the bottom of bracket (2) is equipped with follow-up frame (6), follow-up frame (6) with be equipped with axial cam portion between die block (7), the bottom of die block (7) is equipped with interior extension spring (8), interior tension spring (8) taut between die block (7) and follow-up frame (6), the upper portion and the rotating ring (3) of follow-up frame (6) are connected.