Injection mold

Abstract

The utility model discloses an injection mold, which relates to the technical field of molds, and comprises a mold main body and an inner mold, one side of the mold main body is provided with a water inlet groove and a water outlet groove, the bottom of the inner side of the mold main body is provided with a water inlet hole and a water outlet hole, the water inlet hole is communicated with the water inlet groove, and the water outlet hole is communicated with the water outlet groove. The water inlet hole and the water outlet hole are sleeved with rubber rings, a drainage mechanism is arranged in the mold body, a first water inlet channel and a first water outlet channel are formed in the bottom of the inner mold, the first water inlet channel corresponds to the water inlet hole, the first water outlet channel corresponds to the water outlet hole, and a backflow groove is formed in the inner mold. According to the device, water flow leakage can be reduced by arranging the rubber ring, and extremely little water easy to leak can be discharged through the connecting groove and the outer flow groove by forming the connecting groove and the outer flow groove, so that on one hand, the air tightness of the device is ensured, and on the other hand, remedial measures can be taken in case of water flow leakage, and the influence of water flow leakage on injection molding work is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an injection mold. Background Art

[0002] In the field of injection molding technology, injection molds are key pieces of equipment, and their performance directly impacts product quality and production efficiency. With the increasing variety of injection molding materials and increasingly demanding production requirements, the challenges facing injection molds are becoming increasingly severe. Especially under high-speed, high-pressure, and high-temperature injection molding conditions, the heat generated by the flow and compression of the plastic melt inside the mold increases dramatically. Failure to dissipate heat promptly and effectively can lead to excessive mold temperatures, compromising the dimensional accuracy and surface quality of the molded part, and even causing mold damage and shortening its service life.

[0003] The traditional injection mold cooling method mainly relies on setting up cooling water channels inside the mold to remove the heat inside the mold through circulating cooling water. However, this method often has some problems in practical applications, such as unreasonable design of cooling water channels leading to uneven cooling effect, and cooling water easily leaking when flowing inside the mold. The leakage of cooling water not only reduces the cooling effect, but may also pollute the injection molding working environment, affecting production safety and product quality. Therefore, in response to the above technical problems, an injection mold is proposed herein. Utility Model Content

[0004] The purpose of the utility model is to provide an injection mold, which can reduce water leakage by arranging a rubber ring, and can discharge very little water that is easy to leak through the opening of a connecting groove and an outflow groove. On the one hand, the airtightness of the device is ensured, and on the other hand, remedial measures can be taken in case of water leakage, thereby avoiding the influence of water leakage on the injection molding work.

[0005] The utility model is achieved through the following technical solutions:

[0006] An injection mold includes a mold body and an inner mold, a water inlet groove and a drainage groove are provided on one side of the mold body, a water inlet hole and a water outlet hole are provided on the inner bottom of the mold body, the water inlet hole is connected to the water inlet groove, the water outlet hole is connected to the drainage groove, the water inlet hole and the water outlet hole are covered with rubber rings on the outside, a drainage mechanism is provided inside the mold body, a first water inlet channel and a first water outlet channel are provided at the bottom of the inner mold, the first water inlet channel corresponds to the water inlet hole, the first water outlet channel corresponds to the water outlet hole, a reflux groove is provided inside the inner mold, and the reflux groove is connected to the first water inlet channel and the first water outlet channel.

[0007] Preferably, the first water inlet channel is located at the starting end of the reflux groove, and the first water outlet channel is located at the end of the reflux groove.

[0008] Preferably, the drainage mechanism includes a connecting groove and an external flow groove, and the connecting groove and the external flow groove are both opened on the inner side of the mold body, and the external flow groove is connected to the connecting groove.

[0009] Preferably, the connecting groove is located near the water inlet and the water outlet.

[0010] Preferably, a plurality of symmetrically arranged branch channels are provided inside the inner mold, and the branch channels intersect with the reflux grooves.

[0011] Preferably, a second water inlet channel and a second water outlet channel are opened inside the mold body, and the second water inlet channel is communicated with the second water outlet channel.

[0012] Preferably, a punching hole is provided on the upper side of the inner mold, and a mounting hole is provided on the upper side of the mold body.

[0013] The technical solution of the utility model has at least the following beneficial effects:

[0014] The utility model provides an injection mold, in which rubber rings are fixedly connected to the outside of a water inlet hole and a water outlet hole, thereby reducing water leakage when the water inlet hole is connected to a first water inlet channel and when the water outlet hole is connected to a first water outlet channel. In addition, a connecting groove and an outflow groove are provided near the water inlet hole and the water outlet hole, through which very little water that is prone to leakage can be discharged. On the one hand, the air tightness of the device is ensured, and on the other hand, remedial measures can be taken in case of water leakage, thereby avoiding the influence of water leakage on the injection molding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a first partial structural cross-sectional view of the utility model;

[0017] Figure 3 for Figure 2 A magnified view of middle A;

[0018] Figure 4 This is a schematic diagram of the first partial structure of the utility model;

[0019] Figure 5 for Figure 4 Enlarged view of middle B;

[0020] Figure 6 This is a schematic diagram of the second partial structure of the utility model;

[0021] Figure 7for Figure 6 Enlarged view of middle C;

[0022] Figure 8 This is a second partial structural cross-sectional view of the utility model;

[0023] Figure 9 for Figure 8 Enlarged view of middle D;

[0024] Icons: 1. Mold body; 2. Inner mold; 3. Water inlet groove; 4. Water inlet hole; 5. First water inlet channel; 6. Backflow groove; 7. First water outlet channel; 8. Water outlet hole; 9. Drainage groove; 10. Rubber ring; 11. Connecting groove; 12. External flow groove; 13. Branch channel; 14. Second water inlet channel; 15. Second water outlet channel; 16. Stamping hole; 17. Mounting hole. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-9 The utility model proposes an injection mold, including a mold body 1 and an inner mold 2. A water inlet groove 3 and a drainage groove 9 are opened on one side of the mold body 1. A water inlet hole 4 and a water outlet hole 8 are opened at the inner bottom of the mold body 1. The water inlet hole 4 is connected to the water inlet groove 3, and the water outlet hole 8 is connected to the drainage groove 9. The outside of the water inlet hole 4 and the water outlet hole 8 is provided with a rubber ring 10. A drainage mechanism is provided inside the mold body 1. A first water inlet channel 5 and a first water outlet channel 7 are opened at the bottom of the inner mold 2. The first water inlet channel 5 corresponds to the water inlet hole 4, and the first water outlet channel 7 corresponds to the water outlet hole 8. A reflux groove 6 is opened inside the inner mold 2, and the reflux groove 6 is connected to the first water inlet channel 5 and the first water outlet channel 7.

[0027] The first water inlet channel 5 is located at the starting end of the reflux groove 6 , and the first water outlet channel 7 is located at the end of the reflux groove 6 . Water enters through the first water inlet channel 5 and exits through the first water outlet channel 7 .

[0028] The drainage mechanism includes a connecting groove 11 and an external flow groove 12 . Both the connecting groove 11 and the external flow groove 12 are opened on the inner side of the mold body 1 , and the external flow groove 12 is connected to the connecting groove 11 .

[0029] The connecting groove 11 is located near the water inlet 4 and the water outlet 8, so that water can be discharged immediately when it leaks out to avoid leakage.

[0030] The inner mold 2 has multiple groups of symmetrically arranged branch channels 13, and the branch channels 13 intersect with the reflux groove 6, which expands the area through which the water flows inside the inner mold 2 and enhances the cooling effect.

[0031] A second water inlet channel 14 and a second water outlet channel 15 are defined inside the mold body 1 , and the second water inlet channel 14 and the second water outlet channel 15 are communicated with each other.

[0032] A punching hole 16 is provided on the upper side of the inner mold 2 to assist in the stamping and forming of the mold. A mounting hole 17 is provided on the upper side of the mold body 1 to facilitate the installation of the mold.

[0033] The working principle of an injection mold according to an embodiment is that when the injection mold is used, a lot of heat will be generated due to squeezing inside the mold. At this time, water needs to be passed into the mold to cool it down. The water first flows through the water inlet groove 3 outside the mold body 1 to the water inlet hole 4, and then flows into the first water inlet channel 5 aligned with the water inlet hole 4 into the reflux groove 6 inside the inner mold 2. After passing through the reflux groove 6 inside the inner mold 2 and the branch channel 13 intersecting therewith, most of the area inside the inner mold 2 can be covered, and the temperature can be reduced. After cooling, the water can flow out through the first water outlet channel 7 at the end of the reflux groove 6, and flow to the drainage groove 9 through the water outlet hole 8 aligned with the first water outlet channel 7 for discharge, and at the water inlet hole 4 and the water outlet hole 8 are fixedly connected with a rubber ring 10, which can reduce water leakage when the water inlet hole 4 is connected to the first water inlet channel 5 and the water outlet hole 8 is connected to the first water outlet channel 7, and a connecting groove 11 and an outer flow groove 12 are opened near the water inlet hole 4 and the water outlet hole 8, which can discharge the very little water that is easy to leak through them. On the one hand, the air tightness of this device is guaranteed, and on the other hand, remedial measures can be taken in case of water leakage, thereby avoiding the influence of water leakage on the injection molding work. In addition, the mold body 1 itself can be cooled by introducing cold water into the interior through the second water inlet channel 14, and then discharged through the second water outlet channel 15, thereby achieving the cooling effect of the mold body 1 itself.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold, comprising a mold body (1) and an inner mold (2), characterized in that: A water inlet groove (3) and a water outlet groove (9) are provided on one side of the mold body (1); a water inlet hole (4) and a water outlet hole (8) are provided on the inner bottom of the mold body (1); the water inlet hole (4) is connected to the water inlet groove (3); the water outlet hole (8) is connected to the water outlet groove (9); a rubber ring (10) is provided on the outside of the water inlet hole (4) and the water outlet hole (8); a drainage mechanism is provided inside the mold body (1); a first water inlet channel (5) and a first water outlet channel (7) are provided on the bottom of the inner mold (2); the first water inlet channel (5) corresponds to the water inlet hole (4); the first water outlet channel (7) corresponds to the water outlet hole (8); a reflux groove (6) is provided inside the inner mold (2); and the reflux groove (6) is connected to the first water inlet channel (5) and the first water outlet channel (7).

2. The injection mold according to claim 1, characterized in that: The first water inlet channel (5) is located at the starting end of the reflux groove (6), and the first water outlet channel (7) is located at the end of the reflux groove (6).

3. The injection mold according to claim 1, characterized in that: The drainage mechanism comprises a connecting groove (11) and an external flow groove (12); the connecting groove (11) and the external flow groove (12) are both opened on the inner side of the mold body (1), and the external flow groove (12) is connected to the connecting groove (11).

4. The injection mold according to claim 3, characterized in that: The connecting groove (11) is located near the water inlet (4) and the water outlet (8).

5. The injection mold according to claim 1, characterized in that: A plurality of symmetrically arranged branch channels (13) are provided inside the inner mold (2), and the branch channels (13) intersect with the reflow grooves (6).

6. The injection mold according to claim 1, characterized in that: A second water inlet channel (14) and a second water outlet channel (15) are provided inside the mold body (1), and the second water inlet channel (14) and the second water outlet channel (15) are communicated with each other.

7. The injection mold according to claim 1, characterized in that: A punching hole (16) is provided on the upper side of the inner mold (2), and a mounting hole (17) is provided on the upper side of the mold body (1).

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