A demoulding and separating structure of a silicone tube forming die

CN224928306UActive Publication Date: 2026-11-03HITEL (HUBEI) TECH CO LTD
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Patent Information

Application Number
CN202522655947.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-15
Publication Date
2026-11-03
Estimated Expiration
2035-12-15

AI Technical Summary

Technical Problem

Silicone tube molding molds have low demolding efficiency and are prone to damaging the silicone tubes.

Method used

The demolding structure includes a first connector and a second connector. A clamping piece is provided on the outer wall of the second connector. The clamping piece is precisely fitted to the end of the silicone tube. Combined with the water inlet and handle design, stable clamping and lubrication water supply are achieved, improving demolding efficiency and protecting the silicone tube.

Benefits of technology

This improves the demolding efficiency of silicone tubes, avoids localized extrusion deformation and damage to the silicone tubes, and ensures molding quality.

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Abstract

The utility model discloses a silica gel pipe forming die demolding separation structure, including the first connecting head and second connecting head that can be connected in the end part of mould core, the other end of mould core is fixedly arranged with the locking plate, is provided with the clamping piece of the model surface silica gel pipe end part to the outside wall of second connecting head, and clamping piece realizes axial adjustment through radial connecting bolt, and second connecting head still links water pipe and opens the inside water delivery hole.
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Description

Technical Field

[0001] This utility model relates to the field of demolding structure technology, and in particular to a demolding and separation structure for a silicone tube molding mold. Background Technology

[0002] Silicone tubing is widely used in critical automotive piping systems, and its quality directly impacts driving safety. Mold forming is the core process in silicone tubing production, and the efficiency and effectiveness of demolding determine the product qualification rate. Currently, the issue of product breakage is particularly prominent in this stage. Existing silicone tubing molding processes mostly employ a core-and-outer-mold structure. After vulcanization, the outer mold must be disassembled and the core removed to complete demolding. Currently, demolding is done manually using pry bars or air guns with clamps, which is not only inefficient but also prone to damaging the silicone tubing. Summary of the Invention The technical problem to be solved by this utility model is that the demolding efficiency is low and the silicone tube is easily damaged.

[0003] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a silicone tube molding mold demolding and separation structure, including a first connector and a second connector, both of which can be connected to the end of the mold core. A locking plate is fixedly provided at the other end of the mold core, and a clamping piece is provided on the outer wall of the second connector to clamp the end of the silicone tube on the surface of the mold core.

[0004] Preferably, the end of the mold core is provided with a circular protrusion, and both the first connector and the second connector can be fastened to the circular protrusion. The first connector and the second connector are connected to the mold core by bolts.

[0005] Preferably, the joints between the first connector and the second connector and the mold core are located inside the silicone tube.

[0006] Preferably, a water supply pipe is connected to the outer end wall of the second connector, and a water supply hole is opened on the outer side wall of the second connector. The water supply hole communicates with the water supply pipe and is located inside the silicone tube.

[0007] Preferably, the water delivery holes are evenly distributed around the axis of the second connector.

[0008] Preferably, a handle is fixedly connected to the outer end wall of both the first connector and the second connector.

[0009] Preferably, a pair of connecting bolts are fixed on the outer side wall of the second connector, the clamping piece is axially slidably connected to the connecting bolts, the connecting bolts are radially distributed along the second connector, and the clamping piece is locked to the connecting bolts by a nut.

[0010] Preferably, the clamping plates are evenly distributed around the axis of the second connector.

[0011] Preferably, the clamping piece has an adapter groove at one bottom end, the end of the silicone tube is located in the adapter groove, the clamping piece is arc-shaped, and the inner diameter of the clamping piece is equal to the outer diameter of the silicone tube.

[0012] This utility model provides a demolding and separation structure for silicone tube molding molds, which has the following beneficial effects.

[0013] 1. The arc-shaped clamping piece on the outer side of the second connector precisely fits the end of the silicone tube through an adapter groove. Its inner diameter is equal to the outer diameter of the silicone tube, ensuring that the clamping force is evenly distributed around the circumference of the tube end, avoiding localized compression deformation caused by traditional pliers. The clamping piece is evenly distributed around the axis of the second connector, ensuring stable clamping of the rubber tube. Demolding of the silicone tube is achieved by pulling the second connector, resulting in higher construction efficiency and less risk of damaging the end of the silicone tube.

[0014] 2. The first connector is used to connect with the mold core during molding to ensure the molding quality of the silicone tube, and the first connector can be replaced with the second connector for efficient demolding during demolding. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the installation of the first connector in an embodiment of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the first connector installed in an embodiment of this utility model.

[0017] Figure 3 This is a schematic diagram of the installation structure of the second connector in an embodiment of this utility model.

[0018] Figure 4 This is a schematic diagram of the internal structure of the second connector in an embodiment of this utility model.

[0019] In the diagram: 1. Mold core; 2. Locking plate; 3. First connector; 4. Locking bolt; 5. Handle; 6. Second connector; 7. Connecting bolt; 8. Clamping piece; 9. Water pipe; 10. Water delivery hole. Detailed Implementation

[0020] like Figures 1 to 4 As shown, this utility model provides a demolding and separation structure for a silicone tube molding mold, including a first connector 3 and a second connector 6, both of which can be connected to the end of the mold core 1. A locking plate 2 is fixedly provided at the other end of the mold core 1, and a clamping piece 8 is provided on the outer wall of the second connector 6 to clamp the end of the silicone tube on the surface of the mold core 1.

[0021] During the molding stage of the silicone tube, the first connector 3 is installed on the mold core 1. The silicone tube is molded by placing the first connector 3 and the mold core 1 in the molding mold. Then, the silicone tube is demolded. Before demolding, the first connector 3 is removed from the mold core 1, the second connector 6 is installed on the mold core 1, and the end of the silicone tube on the mold core 1 is stably clamped by the clamping piece 8. The operator pulls the second connector 6 to remove the silicone tube from the mold core 1, thus achieving demolding of the silicone tube.

[0022] The locking plate 2 is used to fit the mounting bracket and fix the mold core 1 for easy demolding construction.

[0023] In a preferred embodiment of this utility model, the end of the mold core 1 is provided with a circular protrusion. Both the first connector 3 and the second connector 6 can be fastened onto the circular protrusion. The first connector 3 and the second connector 6 are connected to the mold core 1 by a locking bolt 4. By inserting the first connector 3 or the second connector 6 onto the circular protrusion and rotating it, the through hole on the side wall of the first connector 3 or the second connector 6 is aligned with the threaded hole on the outer side wall of the circular protrusion. The first connector 3 or the second connector 6 is then fixed to the mold core 1 by the locking bolt 4.

[0024] like Figure 2 and Figure 4 As shown. The joints between the first connector 3 and the second connector 6 and the mold core 1 are located on the inner side of the silicone tube. After the silicone tube is clamped by the clamping piece 8, during the pulling process, the clamping piece 8 always clamps the silicone tube on the outer side wall of the second connector 6, ensuring the stability of the clamping during the entire demolding process.

[0025] like Figure 4 As shown. A water supply pipe 9 is connected to the outer end wall of the second connector 6, and a water supply hole 10 is provided on the outer side wall of the second connector 6. The water supply hole 10 communicates with the water supply pipe 9 and is located inside the silicone tube. During the demolding process, water is supplied to the inside of the silicone tube through the water supply pipe 9, which not only lubricates the tube but also maintains the balance of internal and external pressure, ensuring smooth demolding.

[0026] like Figure 4 As shown, to ensure uniform lubrication, the water supply holes 10 are evenly distributed around the axis of the second connector 6.

[0027] like Figures 1 to 4 As shown, to facilitate the disassembly and assembly of the first connector 3 and the pulling of the second connector 6, handles 5 are fixedly connected to the outer end walls of both the first connector 3 and the second connector 6.

[0028] like Figure 3 and Figure 4 As shown. A pair of connecting bolts 7 are fixed to the outer wall of the second connector 6. The clamping piece 8 is axially slidably connected to the connecting bolts 7. The connecting bolts 7 are radially distributed along the second connector 6. The clamping piece 8 is locked to the connecting bolts 7 by nuts. The connecting bolts 7 are installed on the outer wall of the second connector 6 to limit the clamping piece 8, and the nuts, in conjunction with the bolts, stably press the clamping piece 8 against the end of the silicone tube.

[0029] like Figure 3 and Figure 4 As shown, to ensure clamping stability, the clamping plates 8 are evenly distributed around the axis of the second connector 6.

[0030] like Figure 4 As shown. A matching groove is provided at one bottom end of the clamping piece 8, and the end of the silicone tube is located within the matching groove. The clamping piece 8 is arc-shaped, and its inner diameter is equal to the outer diameter of the silicone tube. The size of the clamping piece 8 matches the silicone tube, ensuring uniform contact. The matching groove further improves the stability of the clamping.

Claims

1. A demolding and separation structure for a silicone tube molding mold, characterized in that: It includes a first connector (3) and a second connector (6) that can be connected to the end of the mold core (1). A locking plate (2) is fixedly provided at the other end of the mold core (1). A clamping piece (8) is provided on the outer side wall of the second connector (6) to clamp the end of the silicone tube on the surface of the mold core (1).

2. The demolding and separation structure for a silicone tube molding mold as described in claim 1, characterized in that: The end of the mold core (1) is provided with a circular protrusion. The first connector (3) and the second connector (6) can both be fastened to the circular protrusion. The first connector (3) and the second connector (6) are connected to the mold core (1) by a locking bolt (4).

3. The demolding and separation structure for a silicone tube molding mold as described in claim 2, characterized in that: The joints between the first connector (3) and the second connector (6) and the mold core (1) are located inside the silicone tube.

4. The demolding and separation structure for a silicone tube molding mold as described in claim 3, characterized in that: A water supply pipe (9) is connected to the outer end wall of the second connector (6). A water supply hole (10) is provided on the outer side wall of the second connector (6). The water supply hole (10) is connected to the water supply pipe (9) and is located inside the silicone tube.

5. The demolding and separation structure for a silicone tube molding mold as described in claim 4, characterized in that: The water delivery holes (10) are evenly distributed around the axis of the second connector (6).

6. The demolding and separation structure for a silicone tube molding mold as described in claim 1, characterized in that: A handle (5) is fixedly connected to the outer end wall of both the first connector (3) and the second connector (6).

7. The demolding and separation structure for a silicone tube molding mold as described in claim 1, characterized in that: A pair of connecting bolts (7) are fixed on the outer side wall of the second connector (6). The clamping piece (8) is axially slidably connected to the connecting bolt (7). The connecting bolts (7) are distributed radially along the second connector (6). The clamping piece (8) is locked to the connecting bolt (7) by a nut.

8. The demolding and separation structure for a silicone tube molding mold as described in claim 7, characterized in that: The clamping pieces (8) are evenly distributed around the axis of the second connector (6).

9. The demolding and separation structure for a silicone tube molding mold as described in claim 1, characterized in that: The clamping piece (8) has an adapter groove at one bottom end, and the end of the silicone tube is located in the adapter groove. The clamping piece (8) is arc-shaped, and the inner diameter of the clamping piece (8) is equal to the outer diameter of the silicone tube.