Buckle type flip cover forming die

Abstract

The utility model relates to a buckle type flip forming die, which is characterized in that a movable die core is provided with a first flip forming lower die cavity, a second flip forming lower die cavity and a material distribution lower channel, the first flip forming lower die cavity and the second flip forming lower die cavity are oppositely arranged, a panel groove cavity of the second flip forming lower die cavity is internally provided with a forming bulge, and the bottom of the second flip forming lower die cavity is provided with a product ejector rod, and a fixed die core is provided with a first flip forming upper die cavity and a second flip forming upper die cavity; a shaping bulge for forming an upper groove hole of the turning cover is arranged in the first upper turning cover forming die cavity; a material distribution upper groove channel of which the center is provided with a material injection hole and the tail end is provided with a material inlet is arranged between the first upper turning cover forming die cavity and the second upper turning cover forming die cavity; the first flip forming upper die cavity and the first flip forming lower die cavity form a first flip forming cavity, and the second flip forming upper die cavity and the second flip forming lower die cavity form a second flip forming cavity; the upper material distribution channel and the lower material distribution channel form a material distribution channel, the tail end of the lower material distribution channel is cut off, the movable mold core is transversely provided with a first core-pulling hole and a second core-pulling hole which penetrate through the clamping foot forming groove cavity, the first core-pulling hole and the second core-pulling hole are provided with core rods, and the core rods are connected with a core-pulling mechanism. And simultaneous injection molding of two buckle turning covers is achieved, and the working efficiency is high.

Description

Technical Field

[0001] This utility model relates to injection molds, specifically injection molds for snap-on flip covers. Background Technology

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. Clip-on flip covers are a common product on the market and are mostly made using injection molding. For example... Figure 1a and Figure 1b The two snap-on flip covers shown do not currently have corresponding molding molds on the market, and the existing molding molds are usually only suitable for molding a single product, which not only has the disadvantage of low efficiency, but also increases the mold cost. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects of the existing technology and provide a snap-on flip cover molding mold that can simultaneously injection mold two types of snap-on flip covers, thereby effectively improving work efficiency.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A snap-fit ​​flip-top forming mold includes a moving mold and a fixed mold. The moving mold includes a moving mold base and a moving mold core mounted on the moving mold base. The fixed mold includes a fixed mold base and a fixed mold core mounted on the fixed mold base. The moving mold core and the fixed mold core are correspondingly fitted. The moving mold core is characterized in that: a first flip-top forming lower mold cavity and a second flip-top forming lower mold cavity are provided on the moving mold core and arranged opposite to each other. A material distribution lower channel is provided between the first flip-top forming lower mold cavity and the second flip-top forming lower mold cavity. Both the first flip-top forming lower mold cavity and the second flip-top forming lower mold cavity include a panel groove cavity and a clip forming groove cavity. A forming protrusion for forming a slot hole on the flip-top is raised in the panel groove cavity of the second flip-top forming lower mold cavity. A product ejector rod is provided at the bottom of the panel groove cavity of both the first flip-top forming lower mold cavity and the panel groove cavity of the second flip-top forming lower mold cavity.

[0006] The fixed mold core is provided with a first flip-top forming upper mold cavity and a second flip-top forming upper mold cavity. The first flip-top forming upper mold cavity is provided with a shaping protrusion for forming the upper slot of the flip-top. A material distribution upper channel is provided between the first flip-top forming upper mold cavity and the second flip-top forming upper mold cavity. An injection hole is connected to the center of the material distribution upper channel.

[0007] The first upper mold cavity and the first lower mold cavity of the flap forming form the first flap forming cavity, and the second upper mold cavity and the second lower mold cavity of the flap forming form the second flap forming cavity. The upper and lower material distribution channels form the material distribution channels. The upper material distribution channel has inlets leading to the upper mold cavity of the first flap forming cavity and the upper mold cavity of the second flap forming cavity. The lower material distribution channel is terminated at the end. The moving mold core is laterally provided with a first core-pulling hole that passes through the foot forming groove of the lower mold cavity of the first flap forming cavity and a second core-pulling hole that passes through the foot forming groove of the lower mold cavity of the second flap forming cavity. Both the first core-pulling hole and the second core-pulling hole are equipped with a core rod. The core rod is connected to a core-pulling mechanism that drives it to be pulled out of the first flap forming cavity and the second flap forming cavity.

[0008] Preferably, the core-pulling mechanism includes a core-pulling cylinder, an ejector mandrel, and a core-pulling slide. A positioning mounting plate is fixed on the side of the moving mold core, and a guide groove is provided on the positioning mounting plate. The core-pulling slide is slidably fitted in the guide groove. An ejector mandrel is fixed on the core-pulling slide and corresponds one-to-one with the first core-pulling hole and the second core-pulling hole. The core-pulling cylinder is fixed on the positioning mounting plate, and the ejector mandrel is engaged with the mandrel in a pushing action.

[0009] Preferably, the moving mold core is provided with at least two first flip-top forming lower mold cavities arranged in a row and two second flip-top forming lower mold cavities arranged in a row. The two first flip-top forming lower mold cavities and the two second flip-top forming lower mold cavities are respectively located on both sides of the material distribution lower channel. Correspondingly, the fixed mold core is provided with at least two first flip-top forming upper mold cavities and two second flip-top forming upper mold cavities.

[0010] Preferably, corner positioning sleeves are provided at the four corners of the fixed mold core, and correspondingly, corner positioning protrusions are raised on the moving mold core to be positioned and engaged with the corner positioning sleeves one by one. At least two side positioning sleeves are provided on the two transversely perpendicular sides of the mandrel axis, and correspondingly, side positioning protrusions are raised on the moving mold core to be positioned and engaged with the side positioning sleeves one by one.

[0011] By adopting the above technical solution and using specific positioning mold core and moving mold core design, two types of flip covers can be formed on the same mold, thereby improving molding efficiency and reducing mold cost; it can also achieve an ultra-long core-pulling structure, easily eject the core rod, and achieve reliable core-pulling action.

[0012] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0013] Figure 1a This is a schematic diagram of a snap-on flip cover structure according to the present invention;

[0014] Figure 1b This is a schematic diagram of another snap-on flip cover structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the snap-on flip-top forming mold structure of this utility model;

[0016] Figure 3 This is a structural schematic diagram of the present invention in the state where the moving mold carries the product;

[0017] Figure 4 This is a schematic diagram of the structure of the moving mold of this utility model;

[0018] Figure 5 This is a schematic diagram of the mold structure of this utility model. Detailed Implementation

[0019] See appendix Figures 2-5This utility model discloses a snap-fit ​​flip-top forming mold, including a moving mold 1 and a fixed mold 2. The moving mold 1 includes a moving mold base 11 and a moving mold core 12 mounted on the moving mold base 11. The fixed mold 2 includes a fixed mold base 21 and a fixed mold core 22 mounted on the fixed mold base 21. The moving mold core 12 and the fixed mold core 22 are correspondingly fitted. The moving mold core 12 is provided with a first flip-top forming lower mold cavity 121 and a second flip-top forming lower mold cavity 122 arranged opposite to each other. A material distribution lower channel 123 is provided between the first flip-top forming lower mold cavity 121 and the second flip-top forming lower mold cavity 122. Both the lower mold cavities 122 for forming the flip cover include a panel groove I and a foot forming groove II. The panel groove I of the second lower mold cavity 122 has a forming protrusion 122-1 for forming the upper slot of the flip cover. Ejector rods 31 are disposed at the bottom of both the panel groove I of the first lower mold cavity 121 and the panel groove I of the second lower mold cavity 122. The ejector rods 31 are equipped with a moving seat 32, a fixed seat 32, and a drive source (such as a motor, hydraulic cylinder, pneumatic cylinder, etc.) for connection. The fixed mold core 22 has a first upper mold cavity 221 and a second upper mold cavity 22. 2. The first flip-top forming upper mold cavity 221 is provided with a shaping protrusion 221-1 for forming the upper slot of the flip-top. A material distribution upper mold cavity 223 is provided between the first flip-top forming upper mold cavity 221 and the second flip-top forming upper mold cavity 222. An injection hole 2231 is connected to the center of the material distribution upper mold cavity 223. The first flip-top forming upper mold cavity 221 and the first flip-top forming lower mold cavity 121 are correspondingly fitted to form the first flip-top forming cavity. The second flip-top forming upper mold cavity 222 and the second flip-top forming lower mold cavity 122 are correspondingly fitted to form the second flip-top forming cavity. The material distribution upper mold cavity 223 and the material distribution lower mold cavity 123 are correspondingly fitted. A material distribution channel is formed. The upper material distribution channel 223 has inlets 2232 corresponding to the upper mold cavity 221 and the upper mold cavity 222 of the first flip-top forming mold. The lower material distribution channel 123 is terminated at the end. The moving mold core 12 is laterally provided with a first core-pulling hole that passes through the foot-clamping forming groove II of the lower mold cavity 121 of the first flip-top forming mold, and a second core-pulling hole that passes through the foot-clamping forming groove II of the lower mold cavity 122 of the second flip-top forming mold. Both the first and second core-pulling holes are equipped with a mandrel 41. The mandrel 41 is connected to a core-pulling mechanism 42 that drives it to be pulled out of the first and second flip-top forming cavities. By adopting a specific positioning mold core and moving mold core design, two types of flip-tops can be formed on the same mold, improving forming efficiency and reducing mold costs. An extra-long core-pulling structure can be achieved, easily ejecting the mandrel and realizing reliable core-pulling action.

[0020] To further improve production efficiency, the moving mold core 12 is provided with at least two first flip-top forming lower mold cavities 121 arranged in a row, and two second flip-top forming lower mold cavities 122 arranged in a row. The two first flip-top forming lower mold cavities 121 and the two second flip-top forming lower mold cavities 122 are respectively located on both sides of the material distribution lower channel 123. Correspondingly, the fixed mold core 22 is provided with at least two first flip-top forming upper mold cavities 221 and two second flip-top forming upper mold cavities 222. This allows for the molding of multiple products in one operation using multiple cavities, thereby improving production efficiency. To further ensure reliable core removal and facilitate the forming of the flap's locking holes under this structure, a core-pulling mechanism is designed as follows: the core-pulling mechanism 42 includes a core-pulling cylinder 421, an ejector mandrel, and a core-pulling slide 423. A positioning mounting plate is fixed to the side of the moving mold core 12, and a guide groove is provided on the positioning mounting plate. The core-pulling slide 423 slides within the guide groove. An ejector mandrel corresponding to the first and second core-pulling holes is fixed on the core-pulling slide 423. The core-pulling cylinder 431 is fixed to the positioning mounting plate, and the ejector mandrel pushes against the core 41. This easily ejects the core, achieving reliable core-pulling. This core-pulling mechanism can also be applied to a single first and second flap forming cavity.

[0021] Corner positioning sleeves 224 are provided at the four corners of the fixed mold core 22. Correspondingly, corner positioning protrusions 124 are raised on the moving mold core 12, which are positioned and engaged with the corner positioning sleeves 224. At least two side positioning sleeves 225 are provided on the two transversely perpendicular sides of the mandrel axis of the fixed mold core 22. Correspondingly, side positioning protrusions 125 are raised on the moving mold core 12, which are positioned and engaged with the side positioning sleeves 225. This enables reliable opening and closing of the moving mold core and the fixed mold core.

Claims

1. A snap-on flip cover forming die comprising a moving die and a stationary die, the moving die comprising a moving die seat and a moving die core mounted on the moving die seat, the stationary die comprising a stationary die seat and a stationary die core mounted on the stationary die seat, the moving die core and the stationary die core being correspondingly matched, characterized in that: The movable mold core is provided with a first flip cover forming lower mold cavity and a second flip cover forming lower mold cavity arranged oppositely, a material distribution lower channel is arranged between the first flip cover forming lower mold cavity and the second flip cover forming lower mold cavity, the first flip cover forming lower mold cavity and the second flip cover forming lower mold cavity each include a panel slot cavity and a clamping leg forming slot cavity, a forming protrusion of a flip cover upper slot hole is protruded in the panel slot cavity of the second flip cover forming lower mold cavity, and product ejection rods are arranged at the bottom of the panel slot cavities of the first flip cover forming lower mold cavity and the second flip cover forming lower mold cavity. The fixed mold core is provided with a first flip cover forming upper mold cavity and a second flip cover forming upper mold cavity, a forming protrusion of a flip cover upper slot hole is arranged in the first flip cover forming upper mold cavity, a material distribution upper channel is arranged between the first flip cover forming upper mold cavity and the second flip cover forming upper mold cavity, and a material injection hole is connected to the center of the material distribution upper channel. The first flip cover forming upper mold cavity and the first flip cover forming lower mold cavity are correspondingly matched to form a first flip cover forming cavity, the second flip cover forming upper mold cavity and the second flip cover forming lower mold cavity are correspondingly matched to form a second flip cover forming cavity, the material distribution upper channel and the material distribution lower channel are correspondingly matched to form a material distribution passage, the material distribution upper channel has a material inlet corresponding to the first flip cover forming upper mold cavity and the second flip cover forming upper mold cavity, the material distribution lower channel is a dead end, the movable mold core is laterally provided with a first core-pulling hole penetrating the clamping leg forming slot cavity of the first flip cover forming lower mold cavity and a second core-pulling hole penetrating the clamping leg forming slot cavity of the second flip cover forming lower mold cavity, the first core-pulling hole and the second core-pulling hole are each provided with a core rod, and the core rod is connected to a core-pulling mechanism for pulling out the first flip cover forming cavity and the second flip cover forming cavity.

2. The buckle type flip cover forming mold according to claim 1, wherein: The core-pulling mechanism includes a core-pulling oil cylinder, an ejection core shaft and a core-pulling slide, a positioning mounting plate is fixed to the side of the movable mold core, a guide groove is arranged on the positioning mounting plate, the core-pulling slide is slidingly fitted in the guide groove, the ejection core shaft is fixed on the core-pulling slide and corresponds to the first core-pulling hole and the second core-pulling hole, the core-pulling oil cylinder is fixed on the positioning mounting plate, and the ejection core shaft is in push fitting with the core rod.

3. The buckle type flip cover forming mold according to claim 2, wherein: The movable mold core is provided with at least two first flip cover forming lower mold cavities arranged in a row and two second flip cover forming lower mold cavities arranged in a row, the two first flip cover forming lower mold cavities and the two second flip cover forming lower mold cavities are respectively arranged on both sides of the material distribution lower channel, and correspondingly, the fixed mold core is provided with at least two first flip cover forming upper mold cavities and two second flip cover forming upper mold cavities.

4. The buckle flip-mold of claim 1 or 2 or 3, wherein: The fixed mold core is provided with corner positioning sleeves on four corners, and correspondingly, the movable mold core is provided with corner positioning protruding columns corresponding to the corner positioning sleeves, at least two side positioning sleeves are arranged on the side edges perpendicular to the axial direction of the core rods, and correspondingly, the movable mold core is provided with side positioning protruding columns corresponding to the side positioning sleeves.

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