Inflation tool for rubber tube depoling
By using an air-filled fixture with a sandwich-shaped barrel cavity, the problems of easy deformation and unstable connection of the ring plug are solved, achieving efficient separation of the hose and tire core, saving energy, and improving the core removal efficiency.
Patent Information
- Application Number
- CN202423256344.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-29
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-29
AI Technical Summary
Existing technologies have problems such as the ring plug being easily deformed, blocked, or unable to make a stable connection during the core removal process, especially for long rubber tubes, which makes core removal difficult and consumes energy.
The inflation fixture adopts a sandwich-shaped barrel cavity, with the inner and outer walls forming a concentric hollow sandwich structure. The inner wall is threadedly connected to the tire core, and an inflation inlet is set at the bottom of the outer wall. The space between the inner and outer walls is an inflation channel to ensure unobstructed flow. It is fixed to the tire core by a threaded connection, and compressed air directly enters the gap between the hose and the tire core.
It improves the efficiency of core removal, saves energy, ensures that the inflation channel is not affected by clamps, and achieves stable separation of the hose and tire core.
Smart Images
Figure CN223630752U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to rubber tube manufacturing technical field, concretely relates to a rubber tube core pulling is with the inflation tool. BACKGROUND
[0002] Rubber hose can have hard core method production, especially large diameter rubber hose, in the process of core pulling, high pressure medium is punched into the rubber tube and the core between many, and makes the rubber tube radial expansion, makes the rubber tube and the core separate, adopts traction machine to draw out the tire body from the other end, can complete the core pulling.
[0003] Prior art (2009101310080) discloses a rubber tube core pulling method and device, the device includes support device and annular plug, support device is used to support the rubber tube with mould core, one end of annular plug is inserted between the contact surface of mould core and rubber tube, high pressure medium can be passed into the contact surface between mould core and rubber tube through annular plug, makes rubber tube radial expansion, makes rubber tube and mould core separate, then takes out mould core. The invention can easily take out the mould core of multi-corrugated and long rubber tube by adopting the characteristics of high pressure gas or high pressure water, solves the problems of core pulling difficulty and even unable to pull out the core in prior art. It has the advantages of simple structure, high efficiency and low cost. In the rubber tube core pulling device, if the side wall of annular plug is thick, it is not easy to insert between rubber tube and mould core, if the side wall of annular plug is thin, annular plug is easy to deform, and the gap is blocked, the inflation channel is blocked, in addition, the deformation of annular plug also makes the plug and rubber tube more easily separate, causing the failure of clamp fixation. And for the rubber tube core pulling of long length (more than 30 meters), the weight of mould core is very heavy, and it is impossible to place it on the support for core pulling. UTILITY MODEL CONTENTS
[0004] In order to solve the above problems, an inflation tool for rubber tube core pulling is provided.
[0005] The utility model discloses the following mode realizes: an inflation tool for rubber tube core pulling, the inflation tool is sandwiched layer barrel -shaped cavity, and the sandwiched layer barrel -shaped cavity includes inner wall and outer wall, and the inner wall and the outer wall are concentric hollow barrel -shaped sandwiched layer structure, and form the inflation annular plug insertion part.
[0006] The bottom center of the inner wall is provided with a handle, the handle passes through the bottom center of the outer wall and is fixedly connected with the outer wall, the inner side of the inner wall is provided with a thread connected with the core, and the bottom of the outer wall is provided with an inflation inlet.
[0007] The inner wall and the outer wall of the core gap cooperate.
[0008] The upper end of the outer wall is bent to the direction of the inner wall, so that the inflation outlet forms a bevel shape.
[0009] The inflation inlet is internally threaded for threaded connection of the inflation tube.
[0010] Axial reinforcing ribs are arranged in the inflation channel.
[0011] Compared with the prior art, the inflation tool of the utility model is a sandwiched barrel-shaped cavity, a sandwiched layer forms an inflation channel, the inflation tool is inserted between the tire core and the rubber tube; the inflation channel is located in the middle of the inflation tool and is not affected by the clamp, so that the inflation channel is ensured to be unobstructed; and the inflation tool is connected with the tire core in a threaded connection mode, so that the inflation tool is firmly connected with the tire core, and compressed air is filled into the space between the rubber tube and the tire core through the inflation inlet and the inflation channel arranged on the inflation tool. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is a structural schematic view of the tube tire.
[0013] Figure 2 is Figure 1 an enlarged view of A in the figure.
[0014] Figure 3 is an exploded view of the tube tire.
[0015] Figure 4 is a structural schematic view of the rubber tube and the tire core when the connecting head is removed.
[0016] Figure 5 is Figure 4 an enlarged view of B in the figure.
[0017] Figure 6 is a structural schematic view of the inflation tool of the utility model.
[0018] Figure 7 is a bottom view of the inflation tool of the utility model.
[0019] Figure 8 is a combined schematic view of the inflation tool of the utility model and the tire core.
[0020] Figure 9 is Figure 8 an enlarged view of C in the figure.
[0021] wherein, the tube tire 1; the connecting block 11; the tire core 2; the connecting head 3; the plug-in part 31; the plug-in ring 32; the rubber tube 4; the rubber tube end 41; the gap 5; the inflation tool 6; the inflation ring-shaped plug plug-in part 60; the inner wall 61; the outer wall 62; the inflation inlet 63; the inflation channel 64; the handle 65; the inflation outlet 66; the inflation tube 7; the clamp 8. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the utility model will be described clearly and completely below in combination with the drawings.
[0023] Referring to Figures 1-5 , a pipe tire beneficial to core removal, the tire core 2 is a hollow tubular structure with sealed two ends, the two ends of the tire core are sealed, compressed air does not have to enter the tire core, can directly act between the tire core wall and the rubber tube, saves compressed air, saves energy and materials, one end of the tire core 2 is provided with external threads, and a connector 3 is threadedly connected, the internal threads of the end of the connector 3 are threadedly connected with the tire core 2, and the pipe wall of the internal threads is an annular insertion part 31. The connector 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 pipe tire in sequence, after vulcanization, the rubber sheet forms a rubber tube, there is no gap between the rubber tube and the pipe tire 1, after the water cloth and the connector 3 are removed, since the end of the tire core is provided with external threads and the connector 3 is provided with internal threads, after the connector is removed, a gap is formed between the end of the tire core and the rubber tube, a reserved space is formed, so that compressed air is more easily rushed into the tire core and the rubber tube, and the two are separated from each other.
[0024] As Figure 1 , 2 , 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.
[0025] The annular insertion part 31 extends out of the internal threads to form an insertion ring 32, and the end of the insertion ring 32 is in a bevel shape. After the tire core 2 is threadedly connected with the connector 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 pipe tire, the rubber tube 4 covers the outer surface of the annular insertion part 31 at the connection between the tire core 2 and the connector 3, and after vulcanization, the rubber tube is formed, and the inner surface of the rubber tube 4 is in a stepped shape at the contact position between the tire core 2 and the insertion ring 32. Figure 4 5 After the connector 3 is removed, as ,
[0026] Referring to Figures 6-9 , a rubber tube core removal inflation tool, as Figure 7 , 8 , the inflation tool 6 is a sandwiched barrel-shaped cavity, the inner wall 61 and the outer wall 62 are concentric hollow barrel-shaped sandwich structures, and the inflation annular plug insertion part 60 is formed. The inflation annular plug insertion part 60 is inserted between the tire core 2 and the rubber tube 4, and compressed gas is introduced between the tire core 2 and the rubber tube 4.
[0027] The inner wall 61 is provided with a handle 65 at the bottom center, the handle 65 passes through the bottom center of the outer wall 62 and is fixedly connected with the outer wall 62, and the handle 65 is provided in an elongated cuboid shape; the inner side wall of the inner wall 61 is provided with threads, and the inflation tool 6 is connected with the tire core through the threads on the inner wall 61; the bottom of the outer wall 62 is provided with an inflation inlet 63, and the inflation passage 64 is arranged between the inner wall 61 and the outer wall 62, and the end of the inflation passage 64 at the inflation annular plug-in part 60 is an inflation outlet 66; the inflation tool 6 is inserted between the tire core 2 and the rubber tube 4, gas enters the inflation passage 64 through the inflation inlet 63, and then enters the gap 5 through the inflation passage 64 and the inflation outlet 66, and is filled between the tire core 2 and the rubber tube 4.
[0028] The inflation outlet 66 is close to the position where the rubber tube contacts the tire core, so that the pressure of the compressed air directly acts on the position where the rubber tube contacts the tire core, enters between the rubber tube and the tire core, accelerates the separation of the two, and improves the working efficiency.
[0029] As shown in Figure 8 , 9 , the inner wall 61 is matched with the gap between the outer wall of the tire core, that is, after the tire core 2 is connected with the inflation tool 6 through threads, the inner wall of the inflation tool 6 is on the outer surface of the tire core 2, covers the tire core 2, and the outer wall 62 of the inflation tool 6 is below the inner surface of the rubber tube end 41, so that the inflation tool 6 can be smoothly inserted into the gap 5, and the outlet of the inflation passage 64 of the inflation tool 6 is located in the gap 5; preferably, the upper end of the outer wall 62 is bent towards the inner wall 61, so that the inflation outlet 66 forms a bevel shape, the inflation tool is more easily inserted into the gap 5 between the rubber tube 4 and the tire core 2, and the shape of the gap 5 is adapted, and at the same time, the upper end of the outer wall 62 does not contact the inner wall 61, so as to ensure that the inflation passage 64 is unobstructed.
[0030] The inflation inlet 63 is provided with internal threads for threadedly connecting the inflation pipe 7, one end of the inflation pipe 7 is connected with the inflation inlet, and the other end is connected with the gas storage tank and the screw air compressor, and the compressed air enters the inflation passage 64 through the inflation pipe 7 and the inflation inlet 63. The inflation inlet 63 is symmetrically arranged, and a plurality of inflation inlets 63 can be arranged to accelerate the inflation speed, but too many inflation inlets 63 should not be arranged to avoid weakening the strength of the bottom of the outer wall 62;
[0031] Axial reinforcing ribs (not shown in the figure) are arranged in the inflation passage, that is, axial reinforcing ribs are arranged between the outer wall 62 and the inner wall 61, which can improve the strength of the outer wall 62 and ensure smooth inflation.
[0032] A steel wire or a clamp is arranged on the outer surface of the upper end 41 of the rubber tube, the steel wire or the clamp press-fits the upper end 41 of the rubber tube to the outer wall of the inflation tool 6, so that the two are airtight connected, and the compressed gas is prevented from overflowing from between the upper end 41 of the rubber tube and the outer wall.
[0033] Working process:
[0034] The core 2 and the connecting head 3 are connected by screwing to form the pipe core 1, the inner thread of the end of the connecting head is connected with the core by screwing, the pipe 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 sequentially wound on the surface of the pipe core 1, the water cloth is removed after vulcanization, the rubber sheet becomes the rubber pipe 4, the inner surface of the rubber pipe 4 is step-shaped, the connecting head 3 is unscrewed, and the gap 5 is formed between the core 2 and the rubber pipe 4; the inflation tool 6 is inserted between the core 2 and the rubber pipe 4, the inflation tool 6 is a sandwich barrel-shaped cavity structure and comprises an inner wall 61 and an outer wall 62, the inner side wall of the inner wall 61 is provided with a thread, and the inflation tool 6 is connected with the core by the thread on the inner wall 61; the inner wall 61 is gap-fitted with the outer wall of the core, the inflation annular plug insertion part 60 of the inflation tool 6 is inserted into the gap 5, and the inflation outlet 66 is located in the gap 5; the upper end 41 of the rubber pipe is pressed and mounted on the outer wall of the inflation tool 6 by a steel wire or a clamp, so that the two are air-tightly connected; the other end of the core 2 is connected with a traction machine; one end of the inflation pipe 7 is connected with the inflation inlet 63 by screwing, the other end is connected with a gas storage tank and a screw air compressor, an inflation valve is opened, compressed gas enters the inflation channel 64 through the inflation pipe 7 and the inflation inlet 63, passes through the inflation channel 64 and the inflation outlet 66 and enters the gap 5, and is filled between the core 2 and the rubber pipe 4; when the core 2 moves to the other end under the impact of the compressed gas, the inflation switch is closed, the inflation tool is removed, the core 2 is pulled out under the action of the external force of the traction machine, a complete rubber pipe is obtained, and the two ends of the rubber pipe are cut and modified to obtain a finished rubber pipe.
[0035] Compared with the prior art, the utility model seals the two ends of the core in the pipe core, prevents compressed air from entering the core, saves energy; the core is changed from the original inner thread to the outer thread, and the connecting head with the inner thread is connected by screwing to form the pipe core, after the rubber sheet is vulcanized to form the rubber pipe, there is no gap between the rubber pipe and the pipe core, after the connecting head is removed, the end of the core is provided with the outer thread, the connecting head 3 is provided with the inner thread, and the gap is reserved between the end of the core and the rubber pipe, so that the compressed air is more easily rushed into the core and the rubber pipe, and the two are separated from each other.
[0036] In the utility model, the inflation tool is a sandwich barrel-shaped cavity, the sandwich forms the inflation channel, the inflation tool is inserted between the core and the rubber pipe; the inflation channel is located in the middle of the inflation tool and is not affected by the clamp, so that the inflation channel is ensured to be unobstructed; and the inflation tool is connected with the core in a threaded connection mode, the compressed air is filled between the rubber pipe and the core through the inflation inlet and the inflation channel arranged on the inflation tool.
[0037] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the overall concept of the present application, a number of changes and improvements can be made, and these should also be considered as falling within the scope of the present application.
Claims
1. A pneumatic tool for de-coring a hose, characterized by: The inflatable tool is a sandwich barrel-shaped cavity, which comprises an inner wall (61) and an outer wall (62), the inner wall (61) and the outer wall (62) are concentric hollow sandwich structures, forming an inflatable annular plug-in part (60).
2. The inflating tool for removing the core of a rubber tube according to claim 1, characterized in that: The bottom center of the inner wall (61) is provided with a handle (65), the handle (65) penetrates through the bottom center of the outer wall (62) and is fixedly connected with the outer wall (62); the inner side of the inner wall (61) is provided with a thread connected with a tire core; the bottom of the outer wall (62) is provided with an inflation inlet (63), and the inner wall (61) and the outer wall (62) are provided with an inflation passage (64), the inflation passage (64) is an inflation outlet (66) at the end of the inflatable annular plug-in part (60).
3. The inflation tooling of claim 2, wherein: The inner wall (61) is in clearance fit with the outer wall of the tire core.
4. The inflation tool of claim 3, wherein: The upper end of the outer wall (62) is bent towards the inner wall (61), so that the inflation outlet (66) forms a bevel shape.
5. The inflation tool of claim 4, wherein: The inflation inlet (63) is provided with an internal thread for threadedly connecting an inflation pipe.
6. The inflation tool of claim 5, wherein: Axial reinforcing ribs are arranged in the inflation passage (64).