CN205044068U - Camera battery case's accurate mould - Google Patents

Abstract

The utility model discloses a precision mold for a camera battery shell, which relates to the technical field of injection molds. The mold includes a front template, a front mold core, a rear mold core, a rear template, an ejector panel and a rear mold fixing plate. A molding cavity is formed between the front mold core and the rear mold core. Cavity, the upper end of the inclined top is provided with a forming part that forms the buckle of the battery case, the rear mold core is provided with an inclined top movement track, the inclined top is linked with the thimble panel, and an inclined guide post and a slider are also included. It is arranged on the front template, and the slider is arranged on the rear template. The slider is provided with a chute that slides and fits with the inclined guide column. The end of the slider extends into the cavity. The forming part on the inclined top and the inclined guide post forms the buckle structure of the battery case and the concave-convex surface on the outside. The lateral movement of the inclined guide post and the inclined top can realize the smooth demoulding of the product.

Description

Precision mold for camera battery case

technical field

The application relates to the technical field of injection molds, in particular to a precision mold for a camera battery case.

Background technique

The camera battery casing not only protects the battery and electronic components, but also makes the camera look more beautiful. The battery case generally has a buckle structure. When making a mold for the battery case, not only the forming of the buckle structure, but also the demoulding problem must be considered.

An injection mold with a slanting top device can solve the problems of demoulding and undercut molding, such as a kind of injection mold with a sloping top device disclosed in Chinese Patent Application Publication No. CN103434086A. , the lower mold core, the lower template, the upper needle plate and the bottom needle plate, a molding cavity is provided between the upper mold core and the lower mold core, and the lower mold core is provided with an oblique guide hole, and the injection mold also includes The inclined top device, the inclined top device includes an inclined top and an inclined top seat, one end of the inclined top seat is fixed on the bottom needle plate, the other end of the inclined top seat extends upwards to the lower template, the One end of the inclined top is arranged in the molding cavity, and the inclined top passes through the inclined guide hole through the lower mold core, and is extended and connected to the upper end of the inclined top seat. The inclined roof slides in the inclined guide hole to realize the lateral movement of the inclined roof, thereby forming an undercut structure and smooth demoulding, and the inclined roof seat greatly reduces the length of the inclined roof, which is beneficial to the stability of the inclined roof.

Since the outer side of the battery case also has a concave-convex structure, the injection mold with the above-mentioned structure cannot meet the requirement of forming a concave-convex structure on the outer side of the battery case, so it does not meet the requirements.

Utility model content

The technical problem to be solved by the utility model is to provide a precision mold for a camera battery casing that can form concave-convex surfaces on the inside and outside of the camera battery casing and is easy to demould.

A precision mold for a camera battery case, comprising a front mold fixing plate, a front template, a front mold core, a rear mold core, a rear template, a thimble panel, a thimble bottom plate and a rear mold fixing plate from top to bottom, the front mold core and the rear mold core A molding cavity is formed between the mold cores, and the mold also includes a slanted top device, which includes a slanted top and a push rod. The bottom of the push rod is arranged on the thimble panel, and the top extends into the cavity. The part is provided with a molding part that forms the buckle of the battery case, and the rear mold core is provided with an inclined top movement track, and the inclined top is slidingly matched with the rear mold core, and the inclined top is linked with the thimble panel. It also includes an inclined guide post and Slider, the inclined guide column is located in the front template, the slider is arranged on the rear template, the slider is provided with a chute for sliding the inclined guide column, and the end of the slider is provided for forming the outer side of the battery case. In the molding part of the concave and convex surface, the end of the slider extends into the cavity.

The forming part on the inclined top and the inclined guide post forms the buckle structure of the battery case and the concave-convex surface on the outside. The lateral movement of the inclined guide post and the inclined top can realize the smooth demoulding of the product.

Further, it also includes a slanted roof fixing rod, the lower end of which is set on the thimble panel, and the upper end is connected to the slanted roof; by setting the slanted roof fixing rod, the length of the slanted roof can be greatly reduced, thereby increasing the slanted roof. The strength of the roof reduces the damage of the roof and increases the service life of the roof.

Further, it also includes a fixed rod, the fixed rod is fixed on the rear mold fixed plate, and the push rod is sleeved on the fixed rod; the push rod slides on the fixed rod for the problem of the push rod, so as to prevent the Shaking causes damage to the product during demolding.

Further, a needle valve type hot runner is provided between the front mold fixing plate and the front template; with the needle valve type hot runner, there is no residual glue port after the product is formed.

Description of drawings

Fig. 1 is the structural representation when the utility model mold opening state;

Fig. 2 is the structural representation when the utility model closes the mold state;

As shown in the figure: Front mold fixed plate 1, hot runner 2, A plate 3, inclined guide column 4, slider 5, front mold core 6, rear mold core 7, B plate 8, inclined top 9, inclined top fixing rod 10, thimble panel 11, thimble bottom plate 12, die foot l3, back mold fixed plate l4, push rod 15, fixed rod 16.

detailed description

The specific embodiment of the utility model is described in detail below in conjunction with accompanying drawing.

As shown in Figures 1 and 2, the mold is provided with a front mold fixing plate 1, a hot runner fixing plate 2, a front mold plate 3, a front mold core 6, a rear mold core 7, a rear mold plate 8, and a thimble panel 11 from top to bottom. , thimble bottom plate 12 and rear mold fixing plate 14, guide posts are provided between the plate layers for guiding, the needle valve type hot runner is fixed on the hot runner fixing plate 2, and a camera battery is formed between the front mold core 6 and the rear mold 7 core The mold cavity of the shell, the mold is provided with an inclined roof device, the inclined roof device includes an inclined roof 9, a push rod and an inclined roof fixing rod 10, and the rear mold core 7 is provided with a track for sliding the inclined roof 9, and the inclined roof 9 and the track Slip and fit, the upper end of the inclined top 9 is provided with a forming part that forms the reverse structure of the camera battery case, the bottom end of the inclined top fixing rod 10 is set on the thimble panel 11, the upper end is connected with the inclined top 9, and the bottom of the push rod is also set On the thimble fixed plate 11, the upper end of the push rod stretches into the mold cavity. Fixed rod slip fit.

Also be provided with oblique guide post 4 on the front formwork, the end of oblique guide post 4 stretches out front formwork 3, is provided with a slide block 5 that slides with oblique guide post 4 on rear formwork 8, is provided with on slide block 5 The chute for the sliding of the inclined guide post 4, the end of the slider 5 is provided with a forming part forming the concave-convex surface of the camera battery casing, and the end extends into the mold cavity.

A die foot 13 and a spacer are provided between the back template 8 and the back mold fixing plate 14, which are used to lay the mold flat and to support the back template, leaving space for the ejection system.

During use, the mold is fixed on the injection molding machine, and the injection molding machine is divided into a fixed part and a movable part. When the mold is in the mold closing state, the front template 3 is fixed on the fixed part of the injection molding machine, and the rear template 8 is fixed on the movable part of the injection molding machine. When clamping the mold, as shown in Figure 1, the inclined guide post 4 moves downwards. Because the inclined guide post 4 has an angle, it can drive the slider 5 to move laterally. The forming portion at the end of the top 9 forms an undercut structure on the product. When the mold is opened, the front template 3 and the rear template 8 are opened, and the push rod of the injection molding machine pushes the thimble bottom plate 12 and the thimble panel 11 to move, driving the inclined ejector fixing rod 10 to move, thereby driving the inclined ejector 9 to move along the inclined ejector in the rear mold core 7 The track moves upwards. Since the inclined top has a slope, the track also has a slope, so as to realize the lateral movement of the inclined top. At this time, the inclined top 9 is demoulded from the formed product; the inclined guide post 4 moves upward, driving the lateral movement of the slider 5 Movement, thereby realizing the stripping of the slider 5 and the formed product. Injection molding is a cyclic process, and each cycle mainly includes: quantitative feeding-melting plasticization-pressure injection-filling and cooling-opening and taking parts. After the plastic part is taken out, the mold is closed again, and the next cycle is carried out.

To sum up, the forming part on the inclined top and the inclined guide post forms the buckle structure of the battery case and the concave-convex surface on the outside. The lateral movement of the inclined guide post and the inclined top can realize the smooth demoulding of the product. By setting the inclined top The fixed rod can greatly reduce the length of the inclined roof, thereby increasing the strength of the inclined roof, reducing the damage of the inclined roof, increasing the service life of the inclined roof, and the demoulding is stable.

It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solutions described in the embodiments of the utility model. Those of ordinary skill in the art should understand that the utility model can still be Modifications or equivalent replacements are carried out to achieve the same technical effect; as long as the needs of use are met, they are all within the protection scope of the present utility model.

Claims (5)

1. the precision die of a camera battery shell, comprise front mould fixed head (1) from top to bottom, front template (3), front cavity (6), rear cavity (7), rear pattern plate (8), thimble panel (11), Ejector Retainer Plate (12) and rear mold fixed head (14), shaping mold cavity is formed between described front cavity (6) and rear cavity they (7), this mould also comprises Slanted ejecting device, described Slanted ejecting device comprises oblique top (9) and push rod (15), described push rod (15) bottom is arranged on thimble panel (11), die cavity is stretched at top, described oblique top (9) upper end is provided with the forming part forming battery case buckle structure, (7) are provided with oblique top tracks to described rear cavity, described oblique top (9) and rear cavity (7) are slidably matched, described oblique top (9) and thimble panel (11) link, it is characterized in that: also comprise Angle Pin (4) and slide block (5), described Angle Pin (4) is arranged in front template (3), described slide block (5) is arranged on rear pattern plate (8), slide block (5) is provided with the skewed slot slided for Angle Pin (4), described slide block (5) end is provided with the forming part for the formation of battery case outer concave convex surface, die cavity is stretched in slide block (5) end.

2. the precision die of camera battery shell according to claim 1, it is characterized in that: also comprise oblique top fixed bar (10), described oblique top fixed bar (10) lower end is arranged on thimble panel (11), and upper end is connected with oblique top (9).

3. the precision die of camera battery shell according to claim 2, it is characterized in that: also comprise a fixed bar (16), described fixed bar (16) is fixed on rear mold fixed head (14), and described push rod (15) is sleeved on fixed bar (16) and goes up and be slidably matched with fixed bar (16).

4. the precision die of the camera battery shell according to claim 1,2 or 3, is characterized in that: be provided with needle valve type hot runner between described front mould fixed head (1) and front template (3).

5. the precision die of camera battery shell according to claim 4, it is characterized in that: also comprise a hot runner plate (2), described hot runner plate (2) is arranged between front mould fixed head (1) and front template (3).