Storage box forming mold with ejection structure

Abstract

The utility model discloses a storage box forming mold with an ejection structure, and relates to the technical field of molds, in particular to a storage box forming mold with an ejection structure, which comprises an upper mold, a positioning mechanism is arranged on the upper mold and is used for positioning an injection molding head, and the positioning mechanism comprises a main body assembly, a positioning mechanism and an ejection mechanism, comprising a ring seat arranged on an upper mold, three positioning heads which are arranged on the circumference of the ring seat in a penetrating and sliding mode at equal intervals, three threaded shaft sleeves which are arranged on the outer wall of the ring seat in a rotating mode at equal intervals and gears fixed to the outer walls of the threaded shaft sleeves, and the inner walls of the gears are in threaded installation with the outer walls of the positioning heads; the auxiliary assembly comprises a gear ring rotationally mounted on the outer wall of the upper end of the ring seat, and the gear ring is in meshing transmission with the gear; the injection molding head can be positioned through the positioning mechanism, it is ensured that the position of the injection molding head in a mold is accurate, injection molding defects such as flash and material shortage caused by position deviation are avoided, and therefore the precision and quality of injection molding finished products are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a storage box forming mold with an ejection structure. Background Art

[0002] Injection mold is a tool for producing plastic products, and also a tool for giving plastic products a complete structure and precise size. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by the injection molding machine, and after cooling and solidification, a molded product is obtained. The injection mold consists of a movable mold and a fixed mold. The movable mold is installed on the movable template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form a pouring system and a cavity. When the mold is opened, the movable mold and the fixed mold are separated to take out the plastic product;

[0003] After checking the announcement number: CN212288474U, a high-impact and anti-deformation plastic storage box molding injection mold is disclosed. This technology discloses "a high-impact and anti-deformation plastic storage box molding injection mold, belonging to the field of mold manufacturing technology. It solves the problem that the side wall of the storage box manufactured by the existing storage box injection mold is easy to dent. The high-impact and anti-deformation plastic storage box molding injection mold includes a movable mold and a fixed mold matched with the movable mold. The fixed mold is provided with a core protruding toward one side of the movable mold. The movable mold has a cavity for the core to penetrate into the interior. The fixed mold, the core and the cavity cooperate to form a molding chamber for molding the storage box. The inner wall of the movable mold is provided with a pre-arch plate protruding toward one side of the molding chamber, and the movable mold is provided with an injection molding component connected to the interior of the molding chamber." and other technical solutions have "by setting the pre-arch plate, the side of the product after molding and cooling has a relatively straight effect, thereby improving the impact strength of the product" and other technical effects;

[0004] During the injection molding process, the injection mold injects plastic into the molding cavity through the injection port; however, when the injection molding machine's nozzle is inserted into the injection port for injection molding, the injection port is prone to leakage. This leakage not only leads to material waste, but also the leaked plastic will adhere to the product, forming flash that is difficult to remove. The existence of these flashes seriously affects the quality and appearance of the product. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a storage box forming mold with an ejection structure, which has the characteristics of being able to position the injection head through a positioning mechanism, ensuring that the position of the injection head in the mold is accurate, avoiding injection defects caused by position deviation, such as flash, material shortage, etc., thereby improving the precision and quality of the injection molded product.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a storage box forming mold with an ejection structure, including an upper mold, a positioning mechanism is provided on the upper mold and is used to position the injection head, and the positioning mechanism includes:

[0007] The main body component includes a ring seat arranged on the upper mold, three positioning heads which are equally divided into the circumference of the ring seat and are slidably installed, three threaded sleeves which are equally divided into the outer wall of the ring seat and are rotatably installed, a gear which is fixed on the outer wall of the threaded sleeve, and the inner wall of the gear is threadedly installed with the outer wall of the positioning head;

[0008] The auxiliary component comprises a gear ring rotatably mounted on the outer wall of the upper end of the ring seat, and the gear ring is meshed with the gear for transmission.

[0009] Preferably, the main body component further comprises a limiting groove provided on the outer wall of the positioning head, and the positioning head is slidably installed through the limiting groove and the ring seat.

[0010] Preferably, the main body component also includes a round head fixed to the inner end of the positioning head, and the surface of the round head is coated with a layer of soft glue coating.

[0011] Preferably, the main body component further comprises three mounting holes equally distributed on the ring seat.

[0012] Preferably, the auxiliary component also includes a shell fixed to the top of the upper mold, a knob sleeve rotatably mounted on the upper end of the shell, and the knob sleeve is fixed to the gear ring.

[0013] Preferably, an injection port is installed at the upper end of the upper mold, and a ring seat is fixed on the top of the injection port, a lower mold is installed at the lower end of the upper mold, a guide column is installed on the top of the lower mold, and an ejection mechanism is installed inside the lower mold.

[0014] Beneficial Effects

[0015] The utility model provides a storage box forming mold with an ejection structure. Compared with the prior art, it has the following beneficial effects:

[0016] (1) After the injection head passes through the positioning mechanism and is inserted into the injection port, the gear ring is driven to rotate by rotating the knob sleeve. The gear ring drives the positioning head to move through the gear and the threaded sleeve, so that the positioning heads in three directions move synchronously toward the axis of the ring seat, thereby positioning the injection head between them, ensuring that the position of the injection head in the mold is accurate, avoiding injection defects caused by position deviation, such as flash, material shortage, etc., thereby improving the precision and quality of the injection molded product.

[0017] (2) The internal gears and gear rings can be covered and protected by the outer shell and knob cover to prevent the plastic from dripping into the interior during the injection molding process and affecting the normal use of the positioning mechanism; the positioning mechanism can be disassembled and assembled with the mold, which is convenient for replacement and maintenance, increasing the flexibility of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the upper mold in the utility model;

[0020] Figure 3 It is a structural schematic diagram of the main components of the utility model;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the main component in the utility model.

[0022] In the figure: 1. upper mold; 2. positioning mechanism; 21. main body component; 211. ring seat; 212. positioning head; 213. round head; 214. limiting groove; 215. threaded sleeve; 216. gear; 217. mounting hole; 22. auxiliary component; 221. gear ring; 222. housing; 223. knob sleeve; 3. injection port; 4. lower mold; 5. guide column; 6. ejection mechanism. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution for a storage box molding mold with an ejection structure: a storage box molding mold with an ejection structure, comprising an upper mold 1, a positioning mechanism 2 is provided on the upper mold 1 and is used to position the injection head, and the positioning mechanism 2 comprises:

[0025] The main body component 21 includes a ring seat 211 provided on the upper mold 1, three positioning heads 212 slidably installed and equally divided through the circumference of the ring seat 211, three threaded sleeves 215 rotatably installed and equally divided on the outer wall of the ring seat 211, a gear 216 fixed on the outer wall of the threaded sleeve 215, and the inner wall of the gear 216 is threadedly installed with the outer wall of the positioning head 212;

[0026] The auxiliary component 22 includes a gear ring 221 rotatably mounted on the outer wall of the upper end of the ring seat 211, and the gear ring 221 is meshed with the gear 216 for transmission.

[0027] In this embodiment, after the injection head passes through the positioning mechanism 2 and is inserted into the injection port 3, the gear ring 221 is driven to rotate by rotating the knob sleeve 223, and the gear ring 221 drives the positioning head 212 to move through the gear 216 and the threaded sleeve 215, so that the positioning heads 212 in three directions move synchronously toward the axis of the ring seat 211, thereby positioning the injection heads in between, ensuring that the position of the injection head in the mold is accurate, avoiding injection defects caused by position deviation, such as flash, material shortage, etc., thereby improving the precision and quality of the injection molded products.

[0028] Specifically, the main body component 21 further includes a limiting groove 214 provided on the outer wall of the positioning head 212 , and the positioning head 212 is slidably installed through the limiting groove 214 and the ring seat 211 .

[0029] In this embodiment, the positioning head 212 is slidably mounted on the ring seat 211 , and the ring seat 211 limits the rotation of the positioning head 212 , so that the threaded sleeve 215 can drive the positioning head 212 to slide along the inside of the ring seat 211 when it rotates.

[0030] Specifically, the main body component 21 further includes a round head 213 fixed to the inner end of the positioning head 212, and the surface of the round head 213 is coated with a layer of soft glue coating.

[0031] In this embodiment, the round head 213 can adapt to injection molding heads of different shapes and sizes and reduce the impact caused when the injection molding head is positioned.

[0032] Specifically, the main body component 21 further includes three mounting holes 217 that are equally distributed on the ring seat 211 .

[0033] In this embodiment, the ring seat 211 can be fixedly mounted on the top of the injection port 3 through the mounting hole 217 and the bolts.

[0034] Specifically, the auxiliary component 22 further includes a shell 222 fixed on the top of the upper mold 1 , a knob sleeve 223 rotatably mounted on the upper end of the shell 222 , and the knob sleeve 223 is fixed to the gear ring 221 .

[0035] In this embodiment, the outer shell 222 and the knob cover 223 can be used to cover and protect the internal gear 216 and the gear ring 221 to prevent the plastic from dripping into the interior during the injection molding process and affecting the normal use of the positioning mechanism 2.

[0036] Specifically, the upper end of the upper mold 1 is equipped with an injection port 3, and the ring seat 211 is fixed on the top of the injection port 3, the lower end of the upper mold 1 is equipped with a lower mold 4, the top of the lower mold 4 is equipped with a guide column 5, and the interior of the lower mold 4 is equipped with an ejection mechanism 6.

[0037] In this embodiment, the positioning mechanism 2 can be disassembled and assembled with the mold, which is convenient for replacement and maintenance, thereby increasing the flexibility of the production line.

[0038] The working principle and use process of the utility model are as follows: first, after the injection head passes through the positioning mechanism 2 and is inserted into the injection port 3, the gear ring 221 is driven to rotate by rotating the knob sleeve 223, and the gear ring 221 drives the positioning head 212 to move through the gear 216 and the threaded shaft sleeve 215, so that the positioning heads 212 in three directions move synchronously toward the axis of the ring seat 211, thereby positioning the injection head in between and ensuring that the position of the injection head in the mold is accurate; and, the internal gear 216 and gear ring 221 are covered and protected by the outer shell 222 and the knob sleeve 223 to prevent the plastic from dripping into the interior during the injection molding process and affecting the normal use of the positioning mechanism 2.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A storage box forming mold with an ejection structure, comprising an upper mold (1), characterized in that: The upper mold (1) is provided with a positioning mechanism (2) for positioning the injection molding head, and the positioning mechanism (2) comprises: The main body component (21) comprises a ring seat (211) arranged on the upper mold (1), three positioning heads (212) slidably installed and equally divided through the circumference of the ring seat (211), three threaded sleeves (215) rotatably installed and equally divided on the outer wall of the ring seat (211), a gear (216) fixed on the outer wall of the threaded sleeve (215), and the inner wall of the gear (216) is threadedly installed with the outer wall of the positioning head (212); The auxiliary component (22) comprises a gear ring (221) rotatably mounted on the outer wall of the upper end of the ring seat (211), and the gear ring (221) is meshed with the gear (216) for transmission.

2. The storage box forming mold with an ejection structure according to claim 1, characterized in that: The main body component (21) further comprises a limiting groove (214) provided on the outer wall of the positioning head (212), and the positioning head (212) is slidably installed through the limiting groove (214) and the ring seat (211).

3. The storage box forming mold with an ejection structure according to claim 1, characterized in that: The main body component (21) further comprises a round head (213) fixed to the inner end of the positioning head (212), and the surface of the round head (213) is coated with a layer of soft glue coating.

4. The storage box forming mold with an ejection structure according to claim 1, characterized in that: The main body component (21) further comprises three mounting holes (217) which are equally distributed and opened on the ring seat (211).

5. The storage box forming mold with an ejection structure according to claim 1, characterized in that: The auxiliary component (22) further comprises a shell (222) fixed on the top of the upper mold (1), a knob sleeve (223) rotatably mounted on the upper end of the shell (222), and the knob sleeve (223) is fixed to the gear ring (221).

6. The storage box forming mold with an ejection structure according to claim 1, characterized in that: The upper end of the upper mold (1) is provided with an injection port (3), and a ring seat (211) is fixed on the top of the injection port (3); the lower end of the upper mold (1) is provided with a lower mold (4); the top of the lower mold (4) is provided with a guide column (5); and an ejection mechanism (6) is provided inside the lower mold (4).

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