Injection mold

Abstract

The utility model provides an injection mold which comprises a static mold and a movable mold which are matched with each other, and a combined molding cavity is formed between the static mold and the movable mold, and is characterized in that a runner is formed in the inner wall of the top of the movable mold, the movable mold is positioned at the cavity, and uniform leakage holes are formed in the inner wall in the path range of the runner; a plurality of interference columns are fixedly mounted on the outer wall of the bottom of the movable mold, a plurality of pouring nozzles communicated with the runner are fixedly mounted at the top of the movable mold, the pouring nozzles are connected with the same multi-way connector through connecting pipes, a pouring gate is fixedly mounted at the top of the multi-way connector, and a heat preservation cover is fixedly mounted at the top of the movable mold; according to the utility model, the runner is arranged in the movable mold, the flow guide of the runner and the arrangement of the plurality of leak holes are utilized, so that molten raw materials can firstly enter the runner and then simultaneously fill the cavity at the bottom through the plurality of leak holes, thereby changing single-point casting into multi-point uniform casting, reducing the flowing paths of the raw materials, reducing the generation of bubbles and further improving the quality of finished products.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding technical field, especially injection mold. BACKGROUND

[0002] Embroidery machine, as the name implies, the machine of embroidering, or the mechanical of embroidering, its and the embroidery principle of sewing machine are similar, are used in the embroidery of textile.

[0003] The panel of embroidery machine is by circuit board, key, knob, shell etc. composition, realizes the control to embroidery machine, in the panel, the shell plays the fixed protection function, usually adopts injection molding process to make.

[0004] Through the search, the patent with china patent publication No. CN208584758U discloses an injection mold, including cavity, gate and cutting gate device, the gate is in one side of the cavity, and with the cavity is communicated, the cutting gate device is opposite with the gate is arranged, and the cutting gate device can intrude into the cavity and seal the gate with the cavity isolation.

[0005] The above patent has the following deficiencies: it adopts the mode of single point gate, utilizes the flowability of molten raw material to cast the fillet in the cavity, but because the viscosity of raw material is big, when flowing in long distance, there are more bubbles in the inside, thereby influence the quality of finished product.

[0006] Therefore, an injection mold is provided. UTILITY MODEL CONTENT

[0007] Therefore, the utility model embodiment hopes to provide an injection mold to solve or alleviate the technical problems in the prior art, at least to provide a beneficial choice.

[0008] The technical scheme of the utility model embodiment is realized as follows: an injection mold, including the static die and the movable die that cooperate with each other, and the static die and the movable die are combined into a cavity, characterized in that: the inner wall of the top of the movable die is provided with a flow channel, and the inner wall along the flow channel path range of the movable die located in the cavity is provided with uniform leakage holes.

[0009] In some embodiments, the bottom outer wall of the movable die is fixedly installed with a plurality of interference columns.

[0010] In some embodiments, the top of the movable die is fixedly installed with a plurality of gate nozzles in communication with the flow channel, the plurality of gate nozzles are connected with the same multi-way connector through the connecting pipe, and the top of the multi-way connector is fixedly installed with a gate.

[0011] In some embodiments, the top of the movable die is fixedly installed with a heat preservation cover.

[0012] In some embodiments, the inner part of the heat preservation cover is filled with heat preservation cotton.

[0013] In some embodiments, the inner wall of the static mold is provided with through cooling holes, and the inner wall of the cooling hole is provided with a cooling pipe connected to an external cooling water circulation device.

[0014] In some embodiments, the cooling pipe is composed of a plurality of straight pipes and U-shaped pipes connected in an alternating manner.

[0015] In some embodiments, the static mold and the dynamic mold side wall contact surface are provided with a plurality of auxiliary positioning members, the auxiliary positioning members include a clamping groove provided in the inner wall of the static mold and a limiting column fixedly installed on the outer wall of the bottom of the dynamic mold, and the limiting column and the clamping groove can be inserted and fitted.

[0016] In some embodiments, the limiting column includes a frustum region for limiting and a cylindrical region for guiding.

[0017] The embodiments of the utility model have the following advantages due to the adoption of the above technical solutions.

[0018] The injection mold is provided with a flow channel in the dynamic mold, the flow channel and the plurality of leakage holes can guide the molten raw material to enter the flow channel first and then fill the cavity at the bottom through the plurality of leakage holes at the same time, so that the single-point casting is changed into multi-point uniform casting, the raw material flow path is reduced, the bubble generation is reduced, and the product quality is improved.

[0019] The injection mold is provided with a plurality of pouring nozzles, the pouring gate is used as the main flow, the connecting pipe is used for flow distribution, and the plurality of pouring nozzles are used for uniform feeding, so that the feeding efficiency is improved.

[0020] The injection mold is provided with a heat preservation cover and heat preservation cotton, the heat preservation cover and the heat preservation cotton can play a heat preservation function on the connecting pipe and the flow channel in the dynamic mold, the raw material in the connecting pipe and the dynamic mold is prevented from solidifying in the cooling and forming stage after the feeding is completed, and the reliability of the device is improved.

[0021] The injection mold is provided with a cooling pipe, the cooling pipe is distributed on the three side walls of the static mold, the cooling pipe can accelerate cooling, the solidification efficiency is improved, the cooling pipe is composed of a straight pipe and a U-shaped pipe, the flow path is increased on one hand, the cooling efficiency is improved, and the installation is facilitated on the other hand.

[0022] The injection mold is provided with an auxiliary positioning member, the relative position of the static mold and the dynamic mold is more accurate when the static mold and the dynamic mold are matched, the size of the cavity is uniform, and the thickness of the panel after forming is uniform.

[0023] The above summary is intended to illustrate the application and is not intended to be limiting thereof. Further aspects, embodiments and features of the application will become apparent from the detailed description in conjunction with the accompanying drawings and the following description. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0025] Figure 1 It is an overall front view structure of the present application;

[0026] Figure 2 It is an overall sectional view structure of the present application;

[0027] Figure 3 It is a moving mold cross-sectional structure diagram of the present application;

[0028] Figure 4 It is a connecting pipe, multi-way joint and gate installation structure diagram of the present application;

[0029] Figure 5 It is an installation sectional view structure diagram of the heat preservation cover and the heat preservation cotton of the present application;

[0030] Figure 6 It is a cooling pipe structure diagram of the present application;

[0031] Figure 7 It is an auxiliary positioning member structure diagram of the present application.

[0032] Reference signs:

[0033] 1 - static mold, 2 - moving mold, 3 - pouring nozzle, 4 - cooling hole, 5 - cavity, 6 - interference column, 7 - runner, 8 - connecting pipe, 9 - multi-way joint, 10 - gate, 11 - heat preservation cover, 12 - heat preservation cotton, 13 - cooling pipe, 14 - straight pipe, 15 - U tube, 16 - clamping groove, 17 - limiting column, 18 - cylindrical area, 19 - conical frustum area, 20 - leakage hole. DETAILED DESCRIPTION

[0034] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Example 1

[0037] like Figures 1-7 As shown, an injection mold includes a stationary mold 1 and a moving mold 2 that cooperate with each other, and the stationary mold 1 and the moving mold 2 are combined to form a cavity 5. The top inner wall of the moving mold 2 is provided with a flow channel 7, and the moving mold 2 is located at the cavity 5, and the inner wall along the path of the flow channel 7 is provided with uniformly distributed holes 20.

[0038] This device, through the flow channel 7 set in the moving mold 2, and the flow guided by the flow channel 7 and the arrangement of multiple holes 20, allows the molten raw material to first enter the flow channel 7, and then simultaneously fill the bottom cavity 5 through the multiple holes 20, thereby changing from single-point casting to multi-point uniform casting, reducing the flow path of the raw material, reducing the generation of air bubbles, and thus increasing the quality of the finished product.

[0039] In this embodiment, multiple interference pillars 6 are welded to the bottom outer wall of the moving mold 2. The interference pillars 6 are used to form the hollow part of the finished product, providing "openings" for the subsequent installation of buttons.

[0040] In this embodiment, the top of the moving mold 2 is welded with multiple sprues 3 that communicate with the flow channel 7. All sprues 3 are connected to the same multi-port connector 9 through connecting pipe 8. The top of the multi-port connector 9 is welded with a gate 10. By setting multiple sprues 3 and using the gate 10 as the main flow, the material is diverted through the connecting pipe 8 and enters multiple sprues 3, so as to achieve multi-point uniform feeding and improve feeding efficiency.

[0041] In this embodiment, the top of the moving mold 2 is fixed with a heat insulation cover 11 by bolts, and the inside of the heat insulation cover 11 is filled with heat insulation cotton 12.

[0042] By setting up the heat insulation cover 11 and the heat insulation cotton 12, the flow channel 7 in the connecting pipe 8 and the moving mold 2 can be kept warm, preventing the raw material in the connecting pipe 8 and the moving mold 2 from solidifying during the cooling and molding stage after feeding, thereby increasing the reliability of the device.

[0043] In the embodiment, the inner wall of the static mold 1 is provided with a cooling hole 4, and the inner wall of the cooling hole 4 is provided with a cooling pipe 13 connected to an external cooling water circulating device.

[0044] In the embodiment, the cooling pipe 13 is composed of a plurality of straight pipes 14 and U pipes 15 connected in an alternating manner.

[0045] The device can accelerate cooling and improve solidification efficiency by arranging the cooling pipe 13 on the three side walls of the static mold 1, and the cooling pipe 13 is composed of the straight pipes 14 and the U pipes 15, which can increase the flow path and the cooling efficiency, and facilitate installation.

[0046] In the embodiment, the static mold 1 and the dynamic mold 2 are combined, and then the molten raw material is injected through the gate 10. After the raw material is divided by the multi-way joint 9, it enters the plurality of pouring nozzles 3 through the connecting pipe 8, and then enters the cavity 5 through the leakage hole 20 after being rectified and divided by the runner 7. After the cavity 5 is filled, the cooling water circulating device is used to input cooling water into the cooling pipe 13, and the mold can be separated after the raw material in the cavity 5 is cooled and shaped. Embodiment 2

[0047] An injection mold, the embodiment is improved on the basis of embodiment 1, as shown in Figures 1-7 The static mold 1 and the dynamic mold 2 are provided with a plurality of auxiliary positioning members on the side wall contact surface, the auxiliary positioning member includes a clamping groove 16 arranged on the inner wall of the static mold 1 and a limiting column 17 welded on the outer wall of the bottom of the dynamic mold 2, and the limiting column 17 and the clamping groove 16 can be inserted and combined.

[0048] In the embodiment, the limiting column 17 includes a frustum region 19 for limiting and a cylindrical region 18 for guiding.

[0049] In the embodiment, the auxiliary positioning member can make the relative position of the static mold 1 and the dynamic mold 2 more accurate when they are combined, so as to ensure the uniform size of the cavity 5 and the uniform thickness of the formed panel.

[0050] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the technical field can easily think of various changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. An injection mold comprising a stationary mold (1) and a movable mold (2) cooperating with each other and combining a mold cavity (5) between the stationary mold (1) and the movable mold (2), characterized in that: The inner wall of the top of the movable mold (2) is provided with a flow channel (7), and the inner wall of the movable mold (2) at the position of the cavity (5) and along the path range of the flow channel (7) is provided with uniform leakage holes (20).

2. An injection mold according to claim 1, characterized in that: The outer wall of the bottom of the movable mold (2) is fixedly provided with a plurality of interference columns (6).

3. An injection mold according to claim 1, characterized in that: The top of the movable mold (2) is fixedly provided with a plurality of pouring nozzles (3) in communication with the flow channel (7), the plurality of pouring nozzles (3) are connected with the same multi-way connector (9) through connecting pipes (8), and the top of the multi-way connector (9) is fixedly provided with a pouring gate (10).

4. An injection mold according to claim 1, characterized in that: The top of the movable mold (2) is fixedly provided with a heat preservation cover (11).

5. An injection mold according to claim 4, characterized in that: The inside of the heat preservation cover (11) is filled with heat preservation cotton (12).

6. An injection mold according to claim 1, characterized in that: The inner wall of the static mold (1) is provided with a penetrating cooling hole (4), and the inner wall of the cooling hole (4) is provided with a cooling pipe (13), and the cooling pipe (13) is connected with an external cooling water circulating device.

7. An injection mold according to claim 6, characterized in that: The cooling pipe (13) is composed of a plurality of straight pipes (14) and U pipes (15) connected in an alternating manner.

8. An injection mold according to claim 1, characterized in that: The side wall contact surface of the static mold (1) and the movable mold (2) is provided with a plurality of auxiliary positioning members, the auxiliary positioning members comprise clamping grooves (16) provided in the inner wall of the static mold (1) and limiting columns (17) fixedly installed on the outer wall of the bottom of the movable mold (2), and the limiting column (17) and the clamping groove (16) can be inserted and combined.

9. An injection mold according to claim 8, characterized in that: The limiting column (17) comprises a conical region (19) for limiting and a cylindrical region (18) for guiding.

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