Sliding ejection structure of mold

Abstract

The utility model relates to the field of mold structures, in particular to a mold sliding ejection structure, which is mounted on a movable mold side in a mold component, the movable mold side can move up and down relative to a static mold side, and the mold sliding ejection structure comprises a movable mold plate, a sliding piece, a push plate and a push rod limiting plate, a transition slope is arranged in the middle of the movable mold through groove; one side of the movable mold plate is a machining face, a push plate is arranged on the other side, away from the machining face, of the movable mold plate, a push rod limiting plate is fixedly installed on the push plate, a sliding piece is connected to the push rod limiting plate in a sliding mode, and the sliding piece can do directional reciprocating motion along the push rod limiting plate. The upper portion of the sliding piece penetrates through the movable mold through groove, a machining cavity matched with a barb structure of a product is formed in the end of the sliding piece, and an inclined face of a transition inclined face of the movable mold through groove is arranged in the middle of the sliding piece. The sliding ejection structure solves the problem that a product cannot be demolded when the interior of the product is in an inverted hook shape, and the functional requirements of the plastic product are met.

Description

Technical Field

[0001] The utility model belongs to the field of molds, in particular to a mold sliding ejection structure. Background Art

[0002] Nowadays, product structures are becoming more and more diversified, and some product structures are complex. During the plastic part manufacturing process, due to the complex glue position and the undercut shape inside, the product cannot fall off the movable mold groove after the conventional structure is used. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a mold sliding ejection structure with scientific design and reasonable structure.

[0004] The utility model solves the technical problem by adopting the following technical solutions:

[0005] A mold sliding ejection structure is installed on the movable mold side of the mold assembly. The mold includes a movable mold side and a static mold side that can relatively open and close. The movable mold side can move up and down relative to the static mold side. It includes a movable mold plate, a sliding member, a push plate and a push rod limit plate. A movable mold through groove is provided in the movable mold plate and passes through along the mold opening direction. A transition slope is provided in the middle of the movable mold through groove.

[0006] One side of the movable template is the processing surface, and a push plate is arranged on the other side of the movable template away from the processing surface. A push rod limit plate is fixedly installed on the push plate. A sliding member is slidably connected to the push rod limit plate, and the sliding member can move back and forth along the push rod limit plate in a directional manner; the upper part of the sliding member passes through the movable mold through groove, and a processing cavity matching the product barb structure is arranged at the end of the sliding member, and an inclined surface is arranged in the middle of the sliding member, which is a transition inclined surface with the movable mold through groove.

[0007] Furthermore, the push rod limiting plate is connected to the sliding member via a pin.

[0008] Moreover, the two sliding parts are arranged in mirror symmetry, both sliding parts pass through the movable mold through groove, and the two sliding parts are limitedly slidably installed on the push rod limit plate. The middle part of the two sliding parts is provided with an inclined surface matching the transition inclined surface, and the two sliding parts slide relative to each other.

[0009] Moreover, the push plate is externally connected to an oil cylinder or an air cylinder as a driving mechanism.

[0010] The advantages and positive effects of the utility model are:

[0011] The sliding ejection structure solves the problem that the product cannot be demoulded when there is an undercut shape inside, thereby ensuring the functional requirements of the plastic product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1This is a schematic diagram of the structure in the mold closing state.

[0013] Figure 2 This is a schematic diagram of the structure in the mold opening state.

[0014] Figure 3 This is a schematic diagram of the product structure produced using this structure.

[0015] Description of the drawings: 1. barb structure; 2. movable mold plate; 3. movable mold through groove; 4. first sliding member; 5. second sliding member; 6. push rod limit plate; 7. push plate. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and through specific embodiments. The following embodiments are merely descriptive and not restrictive, and the protection scope of the present invention cannot be limited thereto.

[0017] See attached Figure 1 , 2 For the convenience of describing this embodiment, Figure 1 The directions shown are for illustration purposes only and do not limit the actual directions of the structure in actual use.

[0018] A mold sliding ejection structure is installed on the movable mold side of a mold assembly. The mold assembly includes a movable mold and a static mold that can be opened and closed relative to each other.

[0019] The structure specifically includes a movable template 2, a sliding member, a push plate 7 and a push rod limit plate 6. Figure 1 The upper part of the movable platen 2 shown in the figure is a processing surface, and a movable mold through groove 3 is provided in the movable platen 2 and passes through along the mold opening direction. The inner diameter of the movable mold through groove 3 is smaller on the side close to the processing surface, and the inner diameter is larger on the side away from the processing surface. A transition slope is provided in the middle of the movable mold through groove 3, and the transition slope has a guiding function to facilitate the sliding of the internal structure;

[0020] A push plate 7 is provided on the side of the movable platen 2 away from the processing surface. The push plate 7 can move along the mold opening direction to approach or move away from the movable platen 2; the push plate 7 is connected to a cylinder, oil cylinder or telescopic rod power mechanism.

[0021] A push rod limit plate 6 is fixedly mounted on the push plate 7, and a sliding member is connected to the push rod limit plate 6 via a pin. The pin can be moved on the push rod limit plate 6 for a certain distance in a directional limit manner. In this embodiment, the pin can move left and right, thereby limiting the sliding member from sliding left and right on the push rod limit plate 6 for a certain distance.

[0022] The upper part of the sliding part extends through the movable mold groove 3 to the processing cavity above the movable mold plate 2, and a processing cavity matching the product hook structure 1 is arranged at the end of the sliding part; during the mold closing process, the sliding part and the movable mold plate 2 are fixed in position, and after waiting for the product processing to be completed, the push plate 7 drives the movable mold plate 2 to move, and the sliding part is squeezed by the transition inclined surface in the movable mold groove 3, so that it moves laterally while away from the processing surface, so that the end of the sliding part is separated from the hook structure 1, thereby realizing demolding.

[0023] The barb structure 1 of the product in this embodiment is symmetrically arranged, and therefore, the sliding parts include a first sliding part 4 and a second sliding part 5, and the first sliding part 4 and the second sliding part 5 are mirror-symmetrical, and both sliding parts pass through the movable mold through groove 3, and both sliding parts are limitedly slidably installed on the push rod limit plate 6, and the middle part of the two sliding parts is provided with an inclined surface that matches the transition inclined surface, and the two sliding parts slide relative to each other.

[0024] Working methods of this structure:

[0025] The pin connects the sliding forming part to the push rod fixing plate 6, and when the mold is closed, the sliding forming part participates in the molding normally.

[0026] After the mold is opened, the push plate 7 pushes the push rod fixing plate and the sliding forming part to move in the product ejection direction. The sliding forming part is squeezed by the movable mold through groove 3 to move away from the product undercut structure 8, completing the product demoulding action.

[0027] While the push plate pushes the sliding part to move and disengage the barb structure, the sliding part moves toward the processing surface, lifting the workpiece away from the movable mold side, making it easier for the product to be demoulded.

[0028] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A mold sliding ejection structure, which is installed on the movable mold side of the mold assembly. The mold includes a movable mold side and a static mold side that can open and close relative to each other. The movable mold side can move up and down relative to the static mold side. It is characterized by: The movable mold plate (2) comprises a movable mold plate (2), a sliding member, a push plate (7) and a push rod limiting plate (6); a movable mold through groove (3) penetrating along the mold opening direction is arranged in the movable mold plate (2); a transition inclined surface is arranged in the middle of the movable mold through groove (3); One side of the movable mold plate (2) is a processing surface, and the other side of the movable mold plate (2) away from the processing surface is provided with a push plate (7), a push rod limit plate (6) is fixedly installed on the push plate (7), and a sliding member is slidably connected to the push rod limit plate (6), and the sliding member can move back and forth in a directional manner along the push rod limit plate (6); the upper part of the sliding member passes through the movable mold through groove (3), and a processing cavity matching the product barb structure (1) is provided at the end of the sliding member, and an inclined surface that is a transition inclined surface with the movable mold through groove (3) is provided in the middle of the sliding member.

2. The mold sliding ejection structure according to claim 1, characterized in that: The push rod limiting plate (6) is connected to the sliding member via a pin.

3. The mold sliding ejection structure according to claim 1, characterized in that: The two sliding members are arranged in mirror symmetry, both of which pass through the movable mold through slot (3), and are both limitedly slidably installed on the push rod limit plate (6). The middle of the two sliding members is provided with an inclined surface that matches the transition inclined surface, and the two sliding members slide relative to each other.

4. The mold sliding ejection structure according to claim 1, characterized in that: The push plate (7) is externally connected to an oil cylinder or an air cylinder as a driving mechanism.

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