Large-diameter rubber hose forming die
By designing a mold for forming a hollow tire core with sealed ends and an externally threaded connector, the problem of compressed air being difficult to enter was solved, thus achieving an energy-saving and efficient core removal process.
Patent Information
- Application Number
- CN202423256345.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-29
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-29
AI Technical Summary
In the current production of large-diameter rubber hoses, compressed air has difficulty effectively entering between the rubber hose and the tire core, resulting in energy waste and low core removal efficiency.
Design a mold for forming a large-diameter rubber hose. The tire core is a hollow tubular structure sealed at both ends, and a connector with an external thread connecting to an internal thread is provided at one end to form a ring-shaped insertion part. The end of the insertion ring is beveled to ensure that compressed air acts directly between the tire core wall and the rubber hose. A gap is left at the end of the tire core when removing the core.
It saves compressed air, improves core removal efficiency, reduces energy waste, and simplifies the core removal process.
Smart Images
Figure CN223573575U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to rubber hose manufacturing technical field, concretely relates to a large -diameter rubber hose forming die. BACKGROUND
[0002] Rubber hose can have hard core method production, especially large -diameter rubber hose, hard core method production process needs to use stainless steel pipe tire, and the general stainless steel pipe tire is composed of one end seal, the other end has the core and the connecting head with the female thread with female thread, and the core 20 and the connecting head 30 are connected through the thread, and the pipe tire of integrated structure is formed, as shown in Figure 1 The rubber sheet and the water cloth are wound to the pipe tire in sequence, and vulcanization is carried out, after vulcanization is completed, the water cloth is removed, and the core is removed, and the formed rubber hose is obtained, in the core removal operation, generally, the connecting head is rotated and extracted first, the inflation pipe is inserted into the end of the rubber hose, the steel wire or the clamp is used to connect the rubber hose end and the pipe end air-tightly, the compressed air is introduced into the rubber hose through the inflation pipe, after filling the core, the compressed gas enters between the rubber hose and the core, the rubber hose expands radially, and the two are separated, the core body is extracted from the other end by using the traction machine, and the core removal is completed. CONTENT OF THE UTILITY MODEL
[0003] To solve the above technical problems, the utility model provides a large -diameter rubber hose forming die.
[0004] The utility model realizes the following mode: a large -diameter rubber hose forming die, including the core, the core is the hollow tubular structure of both ends seal, the core is provided with the female thread in one end, and the connecting head is connected in the female thread, the female thread of connecting head end portion is connected with the core in the female thread, and the pipe wall of female thread is annular insertion part.
[0005] The outer diameter of the annular insertion part is greater than the outer diameter of the core.
[0006] The annular insertion part forms the insertion ring by extending the female thread, and the end portion of the insertion ring is bevel-shaped.
[0007] Compared with the prior art, the utility model discloses the hollow tubular structure of the core is set to both ends seal, make compressed air not have to enter the core, can directly act between the core wall and rubber hose, save compressed air, save energy and material, the one end of the core is provided with the external thread, and fixedly connected with the connector with internal thread, and the core is fastened and is connected through the thread with the connector, forms the tubular tire, and after the rubber sheet vulcanization forms the rubber hose, and there is no gap between the rubber hose and the tubular tire, because the core end part is provided with the external thread, and the connector is internal thread, removes the connector, and the gap appears between the core end part and the rubber hose, and the space is reserved, and make the compressed air more easily rush between the core and the rubber hose, and make it mutually separate. BRIEF DESCRIPTION OF DRAWINGS
[0008] Figure 1 It is the structure schematic diagram of the tubular tire in the prior art.
[0009] Figure 2 It is the structure schematic diagram of the tubular tire of the utility model.
[0010] Figure 3 It is the structure schematic diagram of the tubular tire in another embodiment of the utility model.
[0011] Figure 4 It is Figure 3 The enlarged view in A of Fig.
[0012] Figure 5 It is the exploded view of the tubular tire of the utility model.
[0013] Figure 6 It is the structure schematic diagram of the rubber hose and the core when removing the connector of the utility model.
[0014] Figure 7 It is Figure 6 The enlarged view in B of Fig.
[0015] Among them, tubular tire 1, connecting block 11, core 2, connector 3, plug-in part 31, plug-in ring 32, rubber hose 4, rubber hose end 41, gap 5. DETAILED DESCRIPTION
[0016] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the technical scheme in the utility model will be clearly and completely described below in conjunction with the drawings.
[0017] Refer to Figures 2-7A large-diameter rubber hose forming die, comprising a tire core 2, which is a hollow tubular structure with both ends sealed, both ends of the tire core are sealed, compressed air does not need to enter the tire core, can directly act between the tire core wall and the rubber hose, saves compressed air, saves energy and materials; One end of the tire core 2 is provided with an external thread, and a connecting head 3 is threadedly connected with the external thread, the internal thread at the end of the connecting head 3 is threadedly connected with the tire core 2, and the pipe wall of the internal thread is an annular insertion part 31. The connecting head 3 is threadedly connected with the tire core 2, the rubber sheet and the water cloth are tightly wound along the outer surface of the tubular tire in sequence, after vulcanization, the rubber sheet forms a rubber hose, there is no gap between the rubber hose and the tubular tire 1, after removing the water cloth and the connecting head 3, since the end of the tire core is provided with an external thread and the connecting head 3 is an internal thread, after removing the connecting head, a gap is formed between the end of the tire core and the rubber hose, a reserved space is formed, so that compressed air is more easily flushed into the tire core and the rubber hose, and the two are separated from each other.
[0018] As Figures 2-5 shown, the outer diameter of the annular insertion part 31 is greater than the outer diameter of the tire core 2, so that the gap is larger.
[0019] In another embodiment, as shown in Figure 3 、 4 , 5, the annular insertion part 31 extends out of the internal thread to form an insertion ring 32, and the end of the insertion ring 32 is beveled. After the tire core 2 is threadedly connected with the connecting head 3, the insertion ring 32 is located on the outer surface of the tire core 2 and covers the tire core 2; the rubber sheet and the water cloth are wound on the tubular tire, the rubber hose 4 covers the outer surface of the annular insertion part 31 at the connection between the tire core 2 and the connecting head 3, and after vulcanization, the rubber hose is formed, the inner surface of the rubber hose 4 is stepped at the contact position between the tire core 2 and the insertion ring 32; after removing the connecting head 3, as shown in Figure 6 、 7 , a gap 5 is formed between the rubber hose 4 and the tire core 2, and after the compressed air is introduced, the compressed air directly enters the gap 5, more easily flushing into the tire core and the rubber hose, so that they are separated from each other, and the working efficiency is improved.
[0020] The working process of the utility model:
[0021] The core 2 is connected with the connector 3 by screwing to form the tube tire 1, the inner thread of the end of the connector is connected with the core by screwing, the tube wall of the inner thread is the annular insertion part 31, the annular insertion part 31 extends out of the inner thread to form the insertion ring 32, the end of the insertion ring 32 is bevel-shaped, and the insertion ring 32 covers the outer surface of the core 2; the rubber sheet and the water cloth are wound on the surface of the tube tire 1 in sequence, the water cloth is removed after vulcanization, the rubber sheet becomes the integrated rubber hose 4, the inner surface of the rubber hose 4 is stepped, the connector 3 is unscrewed, and the gap 5 is formed between the core 2 and the rubber hose 4; the inflation pipe is inserted into the end of the rubber hose, the end of the rubber hose and the end of the inflation pipe are air-tightly connected by using the steel wire or the clamp, the compressed air enters the gap 5 through the inflation pipe and is filled between the core 2 and the rubber hose 4, the compressed gas makes the rubber hose 4 radially expand, and the core 2 and the rubber hose 4 are separated from each other; the core is pulled out from the other end by using the traction machine, and the core pulling is completed.
[0022] The core is arranged as the hollow tubular structure with both ends sealed, the compressed air does not need to enter the core, can directly act between the core wall and the rubber hose, compressed air is saved, and energy and materials are saved; one end of the core is provided with the external thread and is fixedly connected with the connector with the inner thread, the core is connected with the connector by screwing, the tube tire is formed, and there is no gap between the rubber hose and the tube tire after the rubber sheet is vulcanized to form the rubber hose; since the end of the core is arranged as the external thread and the connector is arranged as the inner thread, a gap appears between the end of the core and the rubber hose after the connector is removed, a space is reserved, the compressed air is more easily rushed between the core and the rubber hose, and the core and the rubber hose are separated from each other.
[0023] The preferred embodiments of the utility model are described above, and it should be noted that, for those skilled in the art, without departing from the overall concept of the utility model, a plurality of changes and improvements can be made, and these should be regarded as the protection range of the utility model.
Claims
1. A molding die for a large-diameter rubber hose, comprising a tire core (2), characterized in that: The tire core (2) is a hollow tubular structure sealed at both ends. One end of the tire core (2) is provided with an external thread and is threadedly connected to a connector (3). The internal thread at the end of the connector (3) is threadedly connected to the tire core (2), and the tube wall of the internal thread is an annular insertion part (31).
2. The large-diameter rubber hose forming mold according to claim 1, characterized in that: The outer diameter of the annular insertion part (31) is larger than the outer diameter of the tire core.
3. The large-diameter rubber hose forming mold according to claim 2, characterized in that: The annular plug part (31) extends out of the internal thread to form a plug ring (32), and the end of the plug ring (32) is beveled.