Children toy injection mold convenient for core pulling

Abstract

The utility model relates to the technical field of molds, in particular to a children's toy injection mold convenient for core pulling, which comprises a lower mold and an upper mold for producing children's toys, and further comprises a fixed base arranged at the bottom, and a plurality of groups of core pulling mechanisms are arranged at the top of the upper mold. According to the utility model, the lower die and the upper die are arranged and are matched with the fixed base, so that the die can be stably opened and closed; a plurality of groups of internal threaded columns mounted at the top of the upper mold are in threaded connection with a core-pulling screw rod in the core-pulling mechanism, so that stable mounting and flexible core-pulling operation of the core-pulling mechanism are realized; the lifting cylinders arranged at the two ends of the top face of the fixed base can work synchronously, and mold closing and mold splitting are achieved. The core-pulling mechanism further comprises a core shaft arranged at the bottom, the core-pulling process is smoother through threaded connection of the core-pulling screw rod and the internal threaded column and cooperation of the core shaft, and mold core-pulling operation during production of children's toys is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field, concretely is children's toy injection mould convenient to core pulling. BACKGROUND

[0002] With the increasing expansion of children's toy market, higher requirements are put forward for production efficiency and product quality of children's toys. As a key equipment in the production of children's toys, the design and manufacturing level of injection mould directly relates to the quality and production efficiency of products. The traditional children's toy injection mould has many deficiencies in the core pulling process, and the core pulling mechanism is often complex, which leads to the occurrence of jamming phenomenon in the core pulling process, not only increases the operation difficulty, but also may damage the mould or product. SUMMARY

[0003] The utility model discloses a children's toy injection mould convenient to core pulling to solve the problem that the core pulling mechanism of the existing children's toy injection mould is often complex in the above background art.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] The children's toy injection mould convenient to core pulling, including the lower mould and upper mould for producing children's toys, still include the fixed base that sets up at the bottom, the top of upper mould is provided with several groups of core pulling mechanism;

[0006] The top surface of the lower mould is provided with a mold groove for filling materials;

[0007] The top surface of the upper mould is provided with an inner threaded column corresponding to the number and position of the core pulling mechanism, and the center of the top surface of the upper mould is provided with an injection pipe for injecting materials into the mold groove.

[0008] The top surface of the fixed base is symmetrically provided with a lifting cylinder for synchronously working and clamping and unclamping the mold.

[0009] The core pulling mechanism includes a core pulling screw threadedly connected to the inner threaded column and a core shaft provided at the bottom.

[0010] As a preferred, the top surface of the upper mould is also provided with an air outlet hole for discharging air, and a sealing plug is installed on the air outlet hole.

[0011] As a preferred, the two ends of the lower mould are symmetrically provided with end seats.

[0012] As a preferred, the top of the piston rod of the lifting cylinder is connected to the bottom surface of the end seat.

[0013] As a preferred, one side of the fixed base is provided with a side seat for fixing the upper mould.

[0014] As preferred, the top of the core-pulling screw is coaxially installed with a rotating disc.

[0015] As preferred, the diameter of the mandrel is the same as that of the core-pulling screw and the two are coaxially connected.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] In the child toy injection mold convenient for core pulling, the lower mold and the upper mold are arranged, and cooperate with the fixed base to enable the mold to stably perform mold opening and closing operation; the plurality of groups of inner threaded columns installed at the top of the upper mold are threadedly connected with the core-pulling screw in the core-pulling mechanism, so that the core-pulling mechanism is stably installed and flexible core pulling operation is realized; the injection pipe is arranged at the center of the top surface of the upper mold and is used for injecting material into the mold groove; the lifting cylinders arranged at the top surface of the fixed base can work synchronously to realize mold closing and opening; the core-pulling mechanism further comprises the mandrel arranged at the bottom, and the core-pulling process is smoother through the thread connection of the core-pulling screw and the inner threaded column and the cooperation of the mandrel, so that the mold core pulling operation during the production of the child toy is facilitated.

[0018] In the child toy injection mold convenient for core pulling, the top surface of the upper mold is further provided with the air outlet hole for discharging air, and the sealing plug is arranged on the air outlet hole, so that air in the mold can be discharged during the injection process, air bubbles are avoided, and product quality is improved.

[0019] In the child toy injection mold convenient for core pulling, the rotating disc at the top of the core-pulling screw and the coaxial connection and the same diameter of the mandrel and the core-pulling screw enable the operator to easily control the rotation of the core-pulling screw by rotating the rotating disc, so that the core pulling operation is realized, the usability and production efficiency of the mold are improved, and the stability and accuracy during the core pulling process are ensured through the coaxial connection of the mandrel and the core-pulling screw. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the utility model and constitute a part of the specification, and are used to make a further detailed explanation together with the embodiments of the utility model, but do not constitute a limitation to the utility model.

[0021] Fig. 1 It is a structural schematic view of the utility model;

[0022] Fig. 2 It is a mold closing sectional structure schematic view of the utility model;

[0023] Fig. 3 It is a mold opening sectional structure schematic view of the utility model;

[0024] 10, lower mold; 11, mold groove; 12, end seat;

[0025] 20, upper mold; 21, injection tube; 22, air outlet hole; 23, internally threaded column;

[0026] 30, fixed base; 31, lifting air cylinder; 32, side seat; 33, piston rod;

[0027] 40, core pulling mechanism; 41, core pulling screw; 42, turntable; 43, mandrel. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the embodiments of the present application and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "vertical", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] The core-pulling child toy injection mold is, for example, Figs. 1-3As shown, including for the production of children's toys lower mold 10 and upper mold 20, also includes the fixed base 30 set at the bottom, the top of the upper mold 20 is provided with a number of sets of core pulling mechanism 40; the top surface of the lower mold 10 is provided with a mold groove 11 for filling material; the top surface of the upper mold 20 is installed with the same number of internal threads corresponding to the core pulling mechanism 40 and the core pulling mechanism 40, the center of the top surface of the upper mold 20 is installed with an injection pipe 21 for injecting material into the mold groove 11; the top surface of the fixed base 30 is symmetrically provided with lifting cylinders 31 which work synchronously and are used for closing and opening the mold; the core pulling mechanism 40 includes a core pulling screw 41 which is suitable in size and is screw-connected with the internal thread column 23, and a core shaft 43 which is provided at the bottom, through the lower mold 10 and the upper mold 20, cooperating with the fixed base 30, the mold can be stably opened and closed; the top of the upper mold 20 is installed with a number of sets of internal threads 23 which are screw-connected with the core pulling screw 41 in the core pulling mechanism 40, realizing stable installation and flexible core pulling operation of the core pulling mechanism 40; the injection pipe 21 is provided at the center of the top surface of the upper mold 20, for injecting material into the mold groove 11; the lifting cylinders 31 provided at both ends of the top surface of the fixed base 30 can work synchronously, realizing closing and opening of the mold; the core pulling mechanism 40 further includes a core shaft 43 provided at the bottom, through the screw connection of the core pulling screw 41 and the internal thread column 23, and the cooperation of the core shaft 43, the core pulling process is more smooth, facilitating the mold core pulling operation when producing children's toys.

[0031] Further, the top surface of the upper mold 20 is also provided with an air outlet hole 22 for discharging air, a sealing plug is installed on the air outlet hole 22, so that air in the mold can be discharged during injection molding, avoiding the generation of bubbles and improving product quality.

[0032] Specifically, the two ends of the lower mold 10 are symmetrically provided with end seats 12, the top of the piston rod 33 of the lifting cylinder 31 is connected with the bottom surface of the end seat 12, so that the lifting cylinder 31 can stably push the mold to open and close, ensuring smooth operation of the mold.

[0033] Among them, one side of the fixed base 30 is installed with a side seat 32 for fixing the upper mold 20, for fixing the upper mold 20, enhancing the overall stability of the mold, ensuring the safety of the mold during injection molding.

[0034] In addition, the top of the core pulling screw 41 is coaxially installed with a turntable 42, the diameter of the core shaft 43 is the same as that of the core pulling screw 41 and they are coaxially connected, through the turntable 42 provided at the top of the core pulling screw 41 and the coaxial connection and same diameter of the core shaft 43 and the core pulling screw 41, the operator can easily control the rotation of the core pulling screw 41 by rotating the turntable 42, thereby realizing the core pulling operation, improving the ease of use and production efficiency of the mold. At the same time, the coaxial connection of the core shaft 43 and the core pulling screw 41 also ensures the stability and accuracy during the core pulling process.

[0035] The working principle of the core-pulling injection mold for children's toys is as follows:

[0036] The operator connects the injection tube 21 with the injection port of the injection machine, starts the injection machine, and melts the material through the injection tube 21 into the mold groove 11 of the lower mold 10; during the injection process, the air outlet hole 22 on the top surface of the upper mold 20 can discharge the air inside the mold to prevent the generation of air bubbles;

[0037] After the injection is completed, the mold is closed, that is, the piston rod 33 of the lifting cylinder 31 is retracted to drive the lower mold 10 to be closely combined with the upper mold 20; at this time, the core-pulling mechanism 40 starts to work, the operator rotates the rotating disc 42 to rotate and move downward the core-pulling screw rod 41 in the internal thread column 23, drives the core shaft 43 to move together, and realizes the core-pulling operation.

[0038] After the core-pulling is completed, the mold is opened again to take out the children's toys which have been formed; finally, the mold is cleaned to prepare for the next use.

[0039] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model which is claimed to be protected. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A child's toy injection mould facilitating core-pulling, comprising a lower mould (10) and an upper mould (20) for producing a child's toy, characterised in that: It also includes a fixed base (30) arranged at the bottom, the top of the upper mold (20) is provided with several groups of core pulling mechanisms (40); The top surface of the lower mold (10) is provided with a mold groove (11) for filling materials; The top surface of the upper mold (20) is provided with the same number of inner threaded columns (23) corresponding to the core pulling mechanisms (40), and the center of the top surface of the upper mold (20) is provided with an injection pipe (21) for injecting materials into the mold groove (11); The top surface of the fixed base (30) is symmetrically provided with lifting cylinders (31) at both ends for synchronously working and opening and closing the mold; The core pulling mechanism (40) includes a core pulling screw (41) which is threadedly connected with the inner threaded column (23) and a core shaft (43) arranged at the bottom.

2. The child's toy injection mold with core ease-out of claim 1, wherein: The top surface of the upper mold (20) is also provided with an air outlet hole (22) for discharging air, and the air outlet hole (22) is provided with a sealing plug.

3. The child's toy injection mold with core ease-out of claim 1, wherein: Both ends of the lower mold (10) are symmetrically provided with end seats (12).

4. The child's toy injection mold with core ease-out of claim 3, wherein: The piston rod (33) of the lifting cylinder (31) is connected with the bottom surface of the end seat (12).

5. The child's toy injection mold with core ease-out of claim 1, wherein: One side of the fixed base (30) is provided with a side seat (32) for fixing the upper mold (20).

6. The child's toy injection mold with core ease-out of claim 1, wherein: The top of the core pulling screw (41) is coaxially provided with a rotating disc (42).

7. The child toy injection mold with core ease-out of claim 1, wherein: The diameter of the core shaft (43) is the same as that of the core pulling screw (41), and the two are coaxially connected.

Images