Mold core-pulling structure
By introducing a rotating block and a coolant flow channel into the core-pulling structure of the mold, the problem of insufficient heat dissipation of the core is solved, enabling rapid prototyping of plastic bent tubes and improving molding efficiency.
Patent Information
- Application Number
- CN202520076258.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-01-13
AI Technical Summary
The existing mold core-pulling structure lacks an effective heat dissipation structure inside the core, resulting in low efficiency in plastic tube bending.
A mold core-pulling structure was designed, comprising a rotating block, a core, and a coolant channel. The coolant is delivered to the coolant channel inside the core for rapid cooling, and the core is quickly pulled out by the cooperation of the rotating block and the sliding block.
It enables rapid prototyping of plastic bends and improves prototyping efficiency.
Smart Images
Figure CN223812272U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a mould core pulling structure technical field, specifically is a mould core pulling structure. BACKGROUND
[0002] Blow molding technology is a kind of rapidly developing plastic processing method, and its specific is that tubular plastic parison of thermoplastic resin is obtained by extrusion or injection molding, is placed in split mold while hot, immediately passes into compressed air in parison after closing mold, makes plastic parison blow and tightly sticks to the inner wall of mold, after cooling and demolding, various hollow products are obtained.
[0003] The existing mould core pulling structure lacks effective heat dissipation structure on the inner side of the core body when in use, so that the internal heat dissipation of the plastic elbow pipe cannot be guaranteed during core pulling forming, which affects the forming efficiency. UTILITY MODEL CONTENTS
[0004] The utility model solves the technical problem of overcoming the defects of the prior art, provides a mould core pulling structure, the cooling liquid is conveyed to the cooling liquid flow channel in the inner side of the core body through the pipeline by the setting rotating block, core body and cooling liquid flow channel, and then the core body can be rapidly cooled, the plastic elbow pipe is rapidly formed, the forming efficiency is improved, and the problems in the background art can be effectively solved.
[0005] To achieve the above object, the utility model provides the following technical scheme: a mould core pulling structure, including lower mould, the lower mould upper side is provided with forming cavity, the forming cavity inner side is provided with core body, the core body inner side is provided with cooling liquid flow channel, the core body one end is connected with rotating block, the core body other end forms and is provided with plug groove.
[0006] Further, the plug groove is connected with sealing plug in the clamping groove, the sealing plug is connected with sliding block away from one end of the core body, and the sliding block lower side is provided with sliding rail.
[0007] Further, the sliding block is connected with telescopic rod away from one side of the sealing plug, the telescopic rod one end is provided with pneumatic cylinder, and the sliding block and the upper side of the rotating block are hinged with connecting rod.
[0008] Further, the lower mould upper side is provided with recess corresponding to the area that the rotating block rotates, and the arc surface of the recess is provided with limiting rail.
[0009] Further, the rotating center position of the rotating block is provided with fixed shaft, and the lower mould four corners are provided with guide rod.
[0010] Further, the outer side of the rotating block is connected with pipeline in communication with the cooling liquid flow channel, and the limiting rail and the recess are connected by bolts.
[0011] Further, the guide rod is connected with the lower mold through bolts.
[0012] Compared with the prior art, the utility model has the beneficial effects that:
[0013] 1、The utility model discloses a rotating block, a core and a cooling liquid flow channel are arranged, cooling liquid is transported to the cooling liquid flow channel of the inside of the core through the pipeline, and then the core can be rapidly cooled, plastic elbow pipes are rapidly formed, and forming efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is the overhead structure schematic diagram of the utility model;
[0015] Fig. 2 It is the overhead sectional structure schematic diagram of the rotating block and the core in the utility model.
[0016] In the drawing: 1, lower mold;2, core;3, rotating block;4, limit rail;5, connecting rod;6, sealing plug;7, sliding block;8, air cylinder;9, telescopic rod;10, slide rail;11, guide rod;12, recess;13, fixed shaft;14, cooling liquid flow channel;15, plug groove;16, forming cavity. DETAILED DESCRIPTION
[0017] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0018] Please refer to Figs. 1-2 The embodiment provides a technical scheme: a mold core-pulling structure, comprising a lower mold 1, the upper side of the lower mold 1 is provided with a forming cavity 16, the inside of the forming cavity 16 is provided with a core 2, the inside of the core 2 is provided with a cooling liquid flow channel 14, one end of the core 2 is connected with a rotating block 3, the other end of the core 2 is formed with a plug groove 15.
[0019] As Figs. 1-2As shown, after plastic injection molding, the cooling liquid is transported into the cooling liquid flow channel 14 in the core body 2 through the pipeline, and then the core body 2 is rapidly cooled, so that the inside of the plastic elbow pipe is cooled and formed, the forming efficiency of the plastic elbow pipe is improved, the cylinder 8 drives the sliding block 7 to move to one side of the cylinder 8 through the telescopic rod 9, so that the sliding block 7 can drive the sealing plug 6 to move away from the forming cavity 16, and the sliding block 7 drives the rotating block 3 to rotate around the fixed shaft 13 through the connecting rod 5, so that the core body 2 connected to the rotating block 3 is pulled out from the inside of the plastic elbow pipe, and then the formed plastic elbow pipe can be taken out from the forming cavity 16.
[0020] The sealing plug 6 is connected with the sliding block 7 through the clamping groove in the plug groove 15, and the sliding block 7 is connected with the sliding block 7 through the clamping groove in the plug groove 15.
[0021] The sliding block 7 is connected with the telescopic rod 9 away from the sealing plug 6, one end of the telescopic rod 9 is provided with the cylinder 8, and the sliding block 7 is hinged with the connecting rod 5 on the upper side of the rotating block 3.
[0022] The upper side of the lower mold 1 is provided with a groove 12 corresponding to the rotating area of the rotating block 3, and the arc surface of the groove 12 is provided with a limiting rail 4.
[0023] The rotating center position of the rotating block 3 is provided with a fixed shaft 13, and the four corners of the lower mold 1 are provided with guide rods 11.
[0024] The outer side of the rotating block 3 is connected with the pipeline communicated with the cooling liquid flow channel 14, the limiting rail 4 and the groove 12 are connected through bolts, and the limiting rail 4 can limit the rotation of the rotating block 3 to ensure the stable rotation of the rotating block 3.
[0025] The guide rod 11 is connected with the lower mold 1 through bolts, and the guide rod 11 facilitates the sliding connection of the upper mold and the lower mold 1.
[0026] The working principle of the mold core structure provided by the utility model is as follows: Figs. 1-2 As shown, after plastic injection molding, the cooling liquid is transported into the cooling liquid flow channel 14 in the core body 2 through the pipeline, and then the core body 2 is rapidly cooled, so that the inside of the plastic elbow pipe is cooled and formed, the forming efficiency of the plastic elbow pipe is improved, the cylinder 8 drives the sliding block 7 to move to one side of the cylinder 8 through the telescopic rod 9, so that the sliding block 7 can drive the sealing plug 6 to move away from the forming cavity 16, and the sliding block 7 drives the rotating block 3 to rotate around the fixed shaft 13 through the connecting rod 5, so that the core body 2 connected to the rotating block 3 is pulled out from the inside of the plastic elbow pipe, and then the formed plastic elbow pipe can be taken out from the forming cavity 16.
[0027] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.
Claims
1. A mold core-pulling structure comprising a lower mold (1), characterized by: The lower mold (1) upper side is provided with a forming cavity (16), the forming cavity (16) inside is provided with a core (2), the core (2) inside is provided with a cooling liquid runner (14), one end of the core (2) is connected with a rotating block (3), the other end of the core (2) is formed with a plug groove (15).
2. A mold core structure according to claim 1, wherein: The plug groove (15) is connected with a sealing plug (6) in the clamping groove, the sealing plug (6) is connected with a sliding block (7) away from one end of the core (2), and the lower side of the sliding block (7) is provided with a sliding rail (10).
3. A core-drawing structure of a mold according to claim 2, wherein: The sliding block (7) is connected with a telescopic rod (9) away from one side of the sealing plug (6), one end of the telescopic rod (9) is provided with a pneumatic cylinder (8), and the upper side of the sliding block (7) and the rotating block (3) are hinged with a connecting rod (5).
4. The mold core structure of claim 1, wherein: The upper side of the lower mold (1) is provided with a groove (12) corresponding to the rotating area of the rotating block (3), and the arc surface of the groove (12) is provided with a limiting rail (4).
5. The mold core structure of claim 1, wherein: The rotating center position of the rotating block (3) is provided with a fixed shaft (13), and the four corners of the lower mold (1) are provided with a guide rod (11).
6. A mold core retraction structure according to claim 4, wherein: The outer side of the rotating block (3) is connected with a pipeline communicated with the cooling liquid runner (14), and the limiting rail (4) and the groove (12) are connected by bolts.
7. A mold core structure according to claim 5 wherein: The guide rod (11) is connected with the lower mold (1) by bolts.