CN215750552U

CN215750552U - Toy injection mold

Info

Publication number: CN215750552U
Application number: CN202121916913.XU
Authority: CN
Inventors: 谢子栋
Original assignee: Huzhou Global Xinyifeng Environmental Protection Technology Co ltd
Current assignee: Huzhou Global Xinyifeng Environmental Protection Technology Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-02-08
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses a toy injection mold, and relates to the technical field of forming molds. Comprises a bracket, an upper die and a lower die which are arranged on the bracket and can be mutually folded or separated; the upper die is provided with a demoulding channel communicated with the die cavity and the outer part of the upper die, or the lower die is provided with a demoulding channel communicated with the die cavity and the outer part of the lower die; the demolding mechanism comprises a demolding baffle arranged in a demolding channel and a telescopic rod inserted in the demolding channel to push the demolding baffle to move in the demolding channel. After the plastic toy is molded, the finished toy product can be automatically ejected out, automatic demolding is realized, no damage is caused to the finished toy product, and the practicability is high.

Description

Toy injection mold

Technical Field

The utility model relates to the technical field of forming molds, in particular to a toy injection mold.

Background

Patent number CN201920984304.4 discloses a name is toy injection mold's utility model, this utility model includes the frame, the support is installed in the inside bottom four corners of frame, the hydraulic stem is installed in the inside top four corners of frame, mounting bracket A is installed to the hydraulic stem bottom, install the mould bottom mounting bracket A, mounting bracket B is installed at the support top, the lower mould is installed to mounting bracket B top, the fan is installed in the frame left side, the air-collecting cover is installed on the fan right side, the air inlet hose is installed on the air-collecting cover right side, go up the mould and all install the external screw thread interface with the lower mould left end, the external screw thread interface right side just is located the inside perforation of having transversely seted up of mould and lower mould.

The utility model discloses a take away the mould heat with the forced air cooling mode to accelerate the cooling of the die body of moulding plastics, improve toy shaping efficiency. The device adopts a die assembly structure, thermoplastic material liquid is injected into a die cavity, and the thermoplastic material liquid is bonded to the inner wall of the die cavity after being solidified and molded; if the plastic toy is manually tilted, the tilted object can leave tilting marks on the surface of the plastic toy, so that the toy is not attractive, the market competitiveness is lost, the manual operation efficiency is low, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a toy injection mold, which can automatically eject out a formed toy after a plastic toy is formed, realize automatic demolding and solve the technical problem.

The technical scheme for solving the problems is as follows: the toy injection mold comprises a bracket, an upper mold and a lower mold which are arranged on the bracket and can be mutually folded or separated; the upper die is provided with a demoulding channel communicated with the die cavity and the outer part of the upper die, or the lower die is provided with a demoulding channel communicated with the die cavity and the outer part of the lower die; the demolding mechanism comprises a demolding baffle arranged in a demolding channel and a telescopic rod inserted in the demolding channel to push the demolding baffle to move in the demolding channel.

Furthermore, the device also comprises a hydraulic telescopic rod which is arranged on the upper part of the support and used for controlling the upper die to vertically reciprocate, and a hydraulic telescopic rod which is arranged at the bottom of the support and used for controlling the lower die to vertically reciprocate. The upper die and the lower die are both moved under the pushing control of the hydraulic telescopic rod so as to execute two actions of die assembly and die separation, and the degree of automation is high; and the gap of the die assembly is stable and unchanged under the action of hydraulic force after die assembly, the thermoplastic feed liquid is difficult to overflow, the burrs of the finished toy are reduced and reduced, and the subsequent treatment is also convenient.

Furthermore, an injection molding channel and injection molding equipment which is communicated with the injection molding channel to inject thermoplastic feed liquid into the mold cavity are further formed in the lower mold. After the die is closed, thermoplastic feed liquid is injected into the injection molding channel by injection molding equipment, so that the thermoplastic feed liquid enters a die cavity, manual operation is reduced, and risks are reduced.

Furthermore, flow pipelines are respectively arranged in the upper die and the lower die, and the flow pipelines respectively extend from the upper die to be provided with an inflow pipe orifice and an outflow pipe orifice; the liquid cooling circulator is connected with the inflow pipe orifice and the outflow pipe orifice. The cooling liquid flows into the flow pipeline through the inflow pipe orifice at the liquid cooling circulator, then flows out from the outflow pipe orifice to enter the liquid cooling circulator, the cooling liquid absorbs heat in the upper die and the lower die, the heat is released in the liquid cooling circulator, the cooling die is sequentially realized, and the thermoplastic liquid molding and solidifying time is shortened.

Further, still including offering the guide gas pocket that is used for guiding the outflow of mould intracavity air on last mould, the back in the mould chamber is poured into to the hot plastic feed liquid, and liquid level height upwards risees gradually, and the air in the mould intracavity overflows from guide gas pocket to avoid the mould intracavity to appear the cavity, reduce toy shaping quality.

Furthermore, a sliding groove is formed in the channel wall of the demolding channel, and the demolding channel further comprises a sliding strip which is integrally arranged on the demolding baffle and is arranged in the sliding groove in a butt joint mode. The demoulding baffle is clamped on the sliding groove in the demoulding channel by virtue of the sliding strip to slide smoothly, so that the toy finished product can be conveniently ejected out of the mould cavity.

Furthermore, a step blocking edge is further arranged in the demolding channel, and the distance from the step blocking edge to the cavity wall of the mold cavity is the same as the thickness of the demolding blocking plate. When the demoulding baffle is abutted to the stepped blocking edge, the exposed surface of the demoulding baffle is flush with the inner wall of the mould cavity, so that the phenomenon that obvious forming traces appear on the combined position of the demoulding baffle and the inner wall of the mould cavity by thermoplastic material liquid is avoided, and the quality of finished toy products is reduced.

Further, the outer surface of the stripper plate exposed in the mold cavity is also provided with a forming structure texture. In the process of die assembly, the outer surface of the demoulding baffle also serves as a part of the wall of the die cavity to participate in toy molding.

Further, one end of the telescopic rod extending out of the mold is connected to a hydraulic cylinder. The extension or the shortening of the telescopic cylinder is controlled through the hydraulic cylinder so as to control the demoulding baffle to move in the demoulding channel, and automatic demoulding operation is realized.

Furthermore, the upper die and the hydraulic telescopic rod, and the lower die and the hydraulic telescopic rod are detachably mounted, so that different dies can be conveniently replaced to manufacture different toys.

The utility model has the beneficial effects that: the utility model relates to a toy injection mold, which comprises an upper mold and a lower mold; when the upper die and the lower die are closed, thermoplastic material liquid can be injected into the die cavity, and the toy is manufactured after the thermoplastic material liquid is cooled and formed. After the upper die and the lower die are separated, the toy finished product is ejected out of the die cavity through the ejection mechanism arranged on the upper die or the lower die, so that the toy finished product is smoothly ejected out of the die cavity.

In the device, the demoulding mechanism can automatically operate, so that the finished toy can be released from the mould cavity without damage, and the quality of the finished toy is ensured; the device also avoids the traditional method of warping and falling off to generate warping marks on the surface of the finished toy product, and has strong practicability.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model. In the drawings, like reference numerals are used to indicate like elements. The drawings in the following description are directed to some, but not all embodiments of the utility model. For a person skilled in the art, other figures can be derived from these figures without inventive effort.

FIG. 1 is a schematic diagram of the overall structure of a toy injection mold according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of an upper mold structure of a toy injection mold according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a lower mold structure of a toy injection mold according to an embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating the installation of a mold release baffle of a toy injection mold in accordance with an embodiment of the present invention;

1-support, 2-upper mold, 3-lower mold, 4-mold cavity, 5-demolding channel, 6-demolding mechanism, 7-demolding baffle, 8-telescopic rod, 9-hydraulic telescopic rod, 10-injection channel, 11-injection device, 12-flow pipeline, 13-liquid cooling circulator, 14-guide air hole, 15-sliding groove, 16-sliding strip, 17-step edge and 18-hydraulic cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Referring to fig. 1, a toy injection mold according to an embodiment of the present invention includes a support 1, an upper mold 2, and a lower mold 3, the support 1 is configured as a support frame, the upper mold 2 is installed on an upper portion of the support 1, the lower mold 3 is installed on a lower portion of the support 1, the upper mold 2 and the lower mold 3 are arranged opposite to each other, and the upper mold 2 and the lower mold 3 are folded to be closed to form a closed mold; then injecting thermoplastic feed liquid into the die cavity 4 in the die, and stopping injecting the thermoplastic feed liquid after the die cavity 4 is filled with the thermoplastic feed liquid; after the thermoplastic material liquid is cooled and solidified, the upper die 2 and the lower die 3 are controlled to be separated to open the die, and the finished toy product is taken out of the die cavity 4.

With reference to fig. 2 or fig. 3, in this embodiment, the upper die 2 and the lower die 3 are both provided with the demolding mechanism 6, and the upper die 2 and the lower die 3 are both provided with the demolding passage 5. Taking the upper die 2 as an example, the upper die 2 is vertically provided with a demolding channel 5, an upper end channel opening of the demolding channel 5 is arranged on the upper surface of the upper die 2, and a lower end channel opening of the demolding channel 5 is arranged on the inner wall surface of the die cavity 4 of the upper die 2.

The upper die 2 is provided with a demoulding mechanism 6, and the demoulding mechanism 6 comprises a demoulding baffle 7 and a telescopic rod 8. A hydraulic cylinder 18 is also arranged on the upper surface of the upper die 2; the output shaft end of the hydraulic cylinder 18 and the telescopic rod 8 are integrated, and the hydraulic cylinder 18 controls the telescopic rod 8 to extend or shorten so as to push the demoulding baffle 7 installed in the demoulding channel 5 to slide. The thickness of the demoulding baffle 7 is larger; when the demoulding baffle 7 slides in the demoulding channel 5, part of the body can leak out from the lower end channel opening, and then a convex structure is formed in the mould cavity 4, so that the solidified and formed toy finished product is ejected out of the mould cavity 4.

Referring to fig. 1 again, a hydraulic telescopic rod 9 is vertically installed at the upper end of the bracket 1, the lower end of the hydraulic telescopic rod 9 is fixedly connected with the upper die 2 through threads, the die cavity 4 of the upper die 2 faces downwards, and the hydraulic telescopic rod 9 controls the upper die 2 to move downwards to be tightly matched with the lower die 3; otherwise, opening the die separately.

The lower end of the bracket 1 is also vertically provided with a hydraulic telescopic rod 9, the upper end of the hydraulic telescopic rod 9 is fixedly connected with the lower die 3 through threads, a die cavity 4 of the lower die 3 is upward, and the hydraulic telescopic rod 9 controls the lower die 3 to move upward to be attached to the upper die 2 to be tightly matched; otherwise, the mold is opened separately.

Referring to fig. 1 and 3, an injection molding channel 10 communicating the outer surface of the left end of the lower mold 3 with the mold cavity 4 is formed in the left side of the lower mold 3, an injection molding device 11 is also installed on the left side of the mold, the injection molding device 11 is connected with the injection molding channel 10 through a high temperature resistant pipeline, and thermoplastic feed liquid flows into the mold cavity 4 after mold closing from the injection molding device 11 until the mold cavity 4 is filled.

In order to make the thermal plastic quickly cool and solidify, the toy is quickly formed. In this embodiment, the upper die 2 and the lower die 3 are both provided with flow pipelines 12, and the flow pipelines 12 are in a grid distribution pipeline structure; the flow pipeline 12 of the upper die 2 extends to the right end face of the upper die 2 to form an inflow pipe orifice and an outflow pipe orifice, and the inflow pipe orifice of the upper die 2 and the outflow pipe orifice of the upper die 2 are connected to a liquid cooling circulator 13 through pipelines. The flow pipeline 12 of the lower die 3 extends to the right end face of the lower die 3 to form an inflow pipe orifice and an outflow pipe orifice, the inflow pipe orifice of the lower die 3 and the outflow pipe orifice of the lower die 3 are also connected to the same liquid cooling circulator 13 through pipelines, and cooling liquid circularly flows in the closed flow pipeline 12 formed by the flow pipeline 12 and the liquid cooling circulator 13 to take heat away and promote thermoplastic liquid to be cooled and solidified.

Referring to fig. 1 and 2, the upper die 2 is also vertically provided with a plurality of guide air holes 14; because the liquid level rises gradually when the thermoplastic material liquid enters the die cavity 4, air above the liquid level of the thermoplastic material needs to be discharged, if the air cannot be discharged, air holes are generated on the toy finished product, and therefore when the guide air holes 14 are arranged, all air in the die cavity 4 is discharged without residue, and the air holes are avoided.

Referring to fig. 4, in the upper mold 2, the mold release passage 5 is substantially configured as a two-step through hole, so that a horizontal annular step edge 17 is generated in the mold release passage 5, and the distance from the step edge 17 to the lower end passage opening is the same as the thickness of the mold release baffle 7. When the telescopic rod 8 retracts, the demoulding baffle 7 moves along with the retraction and is blocked by the step blocking edge 17, and the outer surface of the lower part of the demoulding baffle 7 and the cavity wall of the mould cavity 4 of the upper mould 2 do not have height difference at the moment, so that seamless splicing is realized.

In addition, a sliding groove 15 is formed in the inner wall of the demolding channel 5 from the lower end channel opening to the stepped blocking edge 17, a sliding strip 16 is correspondingly arranged on the side wall of the demolding baffle 7, the sliding strip 16 slides in the sliding groove 15, and then the demolding baffle 7 moves more smoothly in the demolding channel 5, and the demolding baffle 7 is prevented from being clamped in the demolding channel 5 in an offset mode.

In this embodiment, the lower die 3 and the upper die 2 have substantially the same structure as described above except that the upper die 2 is provided with the guide air holes 14.

Where not mentioned above, all are applicable to the prior art.

Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A toy injection mold is characterized in that: comprises a bracket (1), an upper die (2) and a lower die (3) which are arranged on the bracket (1) and can be mutually folded or separated; the upper die (2) is provided with a demoulding channel (5) which is communicated with the die cavity (4) and the outer part of the upper die (2), or the lower die (3) is provided with a demoulding channel (5) which is communicated with the die cavity (4) and the outer part of the lower die (3); the demolding mechanism (6) is installed on the upper mold (2) or the lower mold (3), and the demolding mechanism (6) comprises a demolding baffle (7) arranged in a demolding channel (5) and a telescopic rod (8) inserted into the demolding channel (5) to push the demolding baffle (7) to move in the demolding channel (5).

2. A toy injection mold as in claim 1, wherein: the device is characterized by further comprising a hydraulic telescopic rod (9) which is arranged on the upper portion of the support (1) and used for controlling the upper die (2) to vertically reciprocate, and a hydraulic telescopic rod (9) which is arranged at the bottom of the support (1) and used for controlling the lower die (3) to vertically reciprocate.

3. A toy injection mold as in claim 1, wherein: still seted up on lower mould (3) and moulded plastics passageway (10) and intercommunication it moulds plastics equipment (11) in order to inject into thermoplastic feed liquid in mould cavity (4) to mould passageway (10).

4. A toy injection mold as in claim 1, wherein: the upper die (2) and the lower die (3) are both internally provided with a flow pipeline (12), and the flow pipeline (12) is respectively extended from the upper die (2) and provided with an inflow pipe orifice and an outflow pipe orifice; and a liquid cooling circulator (13) connecting the inflow nozzle and the outflow nozzle.

5. A toy injection mold as in claim 1, wherein: the mould also comprises a guide air hole (14) which is arranged on the upper mould (2) and is used for guiding the air in the mould cavity (4) to flow out.

6. A toy injection mold as in claim 1, wherein: the wall of the demolding channel (5) is provided with a sliding groove (15), and the demolding device further comprises a sliding strip (16) which is integrally arranged on the demolding baffle (7) and is butted and arranged in the sliding groove (15).

7. A toy injection mold as in claim 1, wherein: a step blocking edge (17) is further arranged in the demolding channel (5), and the distance from the step blocking edge (17) to the cavity wall of the mold cavity (4) is the same as the thickness of the demolding baffle (7).

8. A toy injection mold as in claim 1, wherein: the outer surface of the demoulding baffle (7) exposed in the mould cavity (4) is also provided with a forming structure texture.

9. A toy injection mold as in claim 1, wherein: one end of the telescopic rod (8) extending out of the mould is connected to a hydraulic cylinder (18).