Convenient-to-operate tool special for pipe tire of fiber reinforced hose and matched inflation assembly

Abstract

The invention provides a convenient-to-operate tool special for a fiber reinforced hose tube tire and a matched inflation assembly, and belongs to the technical field of rubber tube manufacturing, the tube tire comprises a tire core, the tire core is of a hollow tubular structure with two sealed ends, one end of the tire core is provided with an external thread, and the external thread is connected with a connector; an internal thread at the end part of the connector is in threaded connection with the tire core, and the pipe wall of the internal thread is an annular inserting part; after the rubber sheet is vulcanized to form the rubber tube and the connector is removed, a gap is formed between the end part of the tire core and the rubber tube, so that compressed air is easier to rush between the tire core and the rubber tube, and the tire core and the rubber tube are separated from each other. The matched inflation assembly is an interlayer barrel-shaped cavity, the interlayer barrel-shaped cavity comprises an inner wall and an outer wall, the inner wall and the outer wall are of a concentric hollow barrel-shaped interlayer structure, the interlayer forms an inflation channel, and the inflation assembly is inserted between the tire core and the rubber tube; the inflation channel is located in the middle of the inflation assembly and is not affected by a hoop, and it is guaranteed that the inflation channel is smooth; and a threaded connection mode is adopted, so that the inflation assembly is firmly connected with the tire core.

Description

Technical Field

[0001] The invention belongs to the technical field of rubber hose manufacturing, and in particular relates to a special tooling for a fiber reinforced hose tube tire which is convenient to operate and a matching inflation component. Background Art

[0002] The rubber hose can be produced by the hard core method, especially the large-diameter rubber hose. The hard core method production process requires the use of a stainless steel tube tire. The general stainless steel tube tire is composed of a tire core with a sealed end and an internal thread on the other end and a connector with an external thread. The tire core 20 and the connector 30 are connected by threads to form a tube tire with an integrated structure, such as Figure 1 As shown; the film and the water cloth are wound onto the tube tire in turn and vulcanized. After the vulcanization is completed, the water cloth is removed, the core is removed, and a formed rubber hose is obtained; in the core removal operation, the connector is generally rotated and pulled out first, and the inflation tube is inserted into the end of the fiber reinforced hose. The fiber reinforced hose end and the inflation tube end are air-tightly connected using a steel wire or a clamp. Compressed air is passed into the fiber reinforced hose through the inflation tube. After the tire core is filled, the compressed gas enters between the fiber reinforced hose and the tire core, and the fiber reinforced hose expands radially. The two are separated from each other, and the tire core is pulled out from the other end using a traction machine to complete the core removal. However, the existing tire core end is provided with an internal thread, and there is no gap between the hollow tube wall and the fiber reinforced hose, which makes it difficult for compressed air to enter between the fiber reinforced hose and the tire core, resulting in slow detachment speed and low work efficiency; even if the compressed air can enter between the fiber reinforced hose and the tire core, it requires a lot of pressure to rush into the space between the fiber reinforced hose and the tire core. Excessive pressure can easily cause the inflation tube to detach from the end of the fiber reinforced hose, causing the clamp fixation to fail; in addition, the tire core of the tubular tire is a hollow tube, and the compressed air first fills the tire core and then enters between the fiber reinforced hose and the tire core, wasting a lot of compressed air and causing energy waste.

[0003] Prior art (2009101310080) discloses a method and device for removing the core of a hose. The device includes a supporting device and an annular plug. The supporting device is used to support the hose with a mold core. One end of the annular plug is inserted between the mold core and the contact surface of the hose. A high-pressure medium can be introduced between the mold core and the contact surface of the hose through the annular plug. The high-pressure medium is used to expand the hose radially, and the hose and the mold core are separated from each other, and then the mold core is taken out. The invention can easily remove the mold core of a multi-corrugated and long-length hose by using the characteristics of high-pressure gas or high-pressure water, solving the problem of difficult or even impossible core removal in the prior art. It has the advantages of simple structure, high efficiency, and low cost. In the hose core removal device, if the side wall of the annular plug is thick, it is not easy to insert between the hose and the mold core; if the side wall of the annular plug is thin, the annular plug is easy to deform, which will block the gap and the inflation channel. In addition, the deformation of the annular plug will also make it easier for the plug to separate from the hose, causing the clamp fixation to fail. In addition, when removing the core from a long hose (over 30 meters), the weight of the mold core is very heavy and it is impossible to place it on the bracket for removal. Summary of the invention

[0004] In the prior art, the rubber hose and the tire core fit tightly without a gap, and compressed air is not easy to enter between the two, resulting in slow disengagement speed and low work efficiency; an annular plug is inserted between the rubber hose and the tire core. If the side wall of the annular plug is thick, it is not easy to insert between the rubber hose and the mold core; if the side wall of the annular plug is thin, the annular plug is easy to deform, which will block the gap and the inflation channel. In addition, the deformation of the annular plug will make it easier for the plug to disengage from the rubber hose, causing the clamp fixation to fail. In order to solve the above problems, a fiber-reinforced hose tube tire special tooling and a matching inflation component that are easy to operate are provided.

[0005] The present invention is implemented in the following manner: a special tool for fiber-reinforced hose tube tires that is easy to operate, including a tire core and a fiber-reinforced hose wrapped around the tire core. The tire core is a hollow tubular structure with sealed ends. One end of the tire core is provided with an external thread and is threadedly connected to a connector; the internal thread at the end of the connector is threadedly connected to the tire core, and the tube wall of the internal thread is an annular plug-in portion.

[0006] The outer diameter of the annular plug-in portion is greater than the outer diameter of the tire core.

[0007] The annular plug-in portion extends out of the internal thread to form a plug-in ring, and the end of the plug-in ring is in a groove shape.

[0008] The inflation component matched with the above-mentioned special tooling for tubular tires includes an inflation component, a tire core and a fiber-reinforced hose covering the tire core, and is characterized in that: the inflation component is a sandwich barrel-shaped cavity, the sandwich barrel-shaped cavity includes an inner wall and an outer wall, the inner wall and the outer wall are concentric hollow barrel-shaped sandwich structures, forming an inflation ring-shaped plug connection part.

[0009] A handle is arranged at the center of the bottom of the inner wall, the handle passes through the center of the bottom of the outer wall and is fixedly connected to the outer wall; a thread connected to the tire core is arranged on the inner side of the inner wall; an inflation inlet is arranged at the bottom of the outer wall, an inflation channel is between the inner wall and the outer wall, and the inflation channel is an inflation outlet at the inflation ring plug connection part.

[0010] The inner wall is clearance-matched with the outer wall of the tire core.

[0011] The upper end of the outer wall is bent toward the inner wall so that the inflation outlet forms a groove shape.

[0012] The inflation inlet is provided with an internal thread for threaded connection with the inflation tube.

[0013] Axial reinforcing ribs are arranged at intervals in the inflation channel.

[0014] Compared with the prior art, the present invention seals both ends of the tire core in the tubular tire to prevent compressed air from entering the tire core, thereby saving energy; the tire core is changed from the original internal thread to an external thread, and a connector with an internal thread is threadedly connected to form a tubular tire. After the film is vulcanized to form a fiber reinforced hose, there is no gap between the fiber reinforced hose and the tubular tire. Since the end of the tire core is set as an external thread and the connector 3 is an internal thread, a gap is formed between the end of the tire core and the fiber reinforced hose, making it easier for compressed air to rush into the space between the tire core and the fiber reinforced hose, so that the two are separated from each other.

[0015] The inflation component in the present invention is a sandwich barrel-shaped cavity, and the sandwich forms an inflation channel, and the inflation component is inserted between the tire core and the fiber reinforced hose; the inflation channel is located in the middle of the inflation component and is not affected by the clamp, thereby ensuring that the inflation channel is unobstructed; and a threaded connection is adopted to firmly connect the inflation component to the tire core, and compressed air is filled into the space between the fiber reinforced hose and the tire core through the inflation inlet and the inflation channel arranged on the inflation component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a tubular tire in the prior art.

[0017] Figure 2 It is a schematic structural diagram of a tubular tire of the present invention.

[0018] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4 It is an exploded view of the tubular tire of the present invention.

[0020] Figure 5 It is a schematic structural diagram of the fiber reinforced hose and tire core when the connector is removed according to the present invention.

[0021] Figure 6 yes Figure 5Enlarged view of point B in the middle.

[0022] Figure 7 It is a structural schematic diagram of the inflatable component of the present invention.

[0023] Figure 8 It is a bottom view of the inflatable component of the present invention.

[0024] Fig. 9 It is a schematic diagram of the combination of the inflation component and the tire core of the present invention.

[0025] Fig.10 yes Fig. 9 Enlarged view of center C.

[0026] Among them, the tubular tire 1; the connecting block 11; the tire core 2; the connector 3; the plug-in part 31; the plug-in ring 32; the fiber-reinforced hose 4; the fiber-reinforced hose end 41; the gap 5; the inflation component 6; the inflation ring 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; and the clamp 8. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with specific examples, and the advantages and features of the present invention will become clearer as the description proceeds. However, the specific experimental methods involved in the following examples are all conventional methods or implemented under the conditions recommended by the manufacturer's instructions unless otherwise specified.

[0028] See also Figures 2 to 6 The invention discloses a special tool for fiber-reinforced hose tube tire with convenient operation, comprising a tire core 2 and a fiber-reinforced hose wrapped outside the tire core. The tire core 2 is a hollow tubular structure with sealed ends. Both ends of the tire core are sealed. Compressed air does not need to enter the tire core, but can directly act between the tire core wall and the fiber-reinforced hose, saving compressed air, energy and materials. An external thread is arranged at one end of the tire core 2, and a connector 3 is threadedly connected. The internal thread at the end of the connector 3 is threadedly connected with the tire core 2, and the tube wall of the internal thread is an annular plug-in portion 31. The connector 3 is threadedly connected with the tire core 2, and the film and the water cloth are tightly wound along the outer surface of the tube tire in sequence. After vulcanization, the film forms a fiber-reinforced hose, and there is no gap between the fiber-reinforced hose and the tube tire 1. After removing the water cloth and the connector 3, since the end of the tire core is arranged with an external thread and the connector 3 is an internal thread, after removing the connector, a gap appears between the end of the tire core and the fiber-reinforced hose, and a reserved space is reserved, so that compressed air can more easily rush into the space between the tire core and the fiber-reinforced hose, so that the two are separated from each other.

[0029] like Figure 2 , 3 As shown in Figures 4 and 5, the outer diameter of the annular plug-in portion 31 is larger than the outer diameter of the tire core 2, so that the gap is larger.

[0030] The annular plug-in portion 31 extends outwardly from the inner thread to form a plug-in ring 32, and the end of the plug-in ring 32 is in a bevel shape. After the tire core 2 is threadedly connected with the connector 3, the plug-in ring 32 is located on the outer surface of the tire core 2 and covers the tire core 2; a film and a water cloth are wrapped around the tubular tire, and at the connection between the tire core 2 and the connector 3, a fiber-reinforced hose 4 covers the outer surface of the annular plug-in portion 31, and after vulcanization, a fiber-reinforced hose is formed. At the contact position between the tire core 2 and the plug-in ring 32, the inner surface of the fiber-reinforced hose 4 is in a step shape; after removing the connector 3, as shown in FIG. Figure 5 , 6 As shown, a gap 5 is formed between the fiber reinforced hose 4 and the tire core 2. After the compressed air is introduced, the compressed air directly enters the gap 5 and more easily rushes into between the tire core and the fiber reinforced hose, so that they are separated from each other, thereby improving work efficiency.

[0031] See also Figures 7 to 10 , an inflatable component that is matched with a special tooling for fiber-reinforced hose tube tires that is easy to operate, such as Figure 7 , 8 As shown, the inflatable component 6 is a sandwich barrel-shaped cavity, which includes an inner wall 61 and an outer wall 62. The inner wall 61 and the outer wall 62 are concentric hollow barrel-shaped sandwich structures, forming an inflatable annular plug connector 60. The inflatable annular plug connector 60 is inserted between the tire core 2 and the fiber-reinforced hose 4 to pass compressed gas between the tire core 2 and the fiber-reinforced hose 4.

[0032] A handle 65 is provided at the bottom center of the inner wall 61, and the handle 65 passes through the bottom center of the outer wall 62 and is fixedly connected to the outer wall 62. The handle 65 is provided in a slender rectangular parallelepiped; a thread is provided on the inner side wall of the inner wall 61, and the inflation component 6 is connected to the tire core through the thread on the inner wall 61; an inflation inlet 63 is provided at the bottom of the outer wall 62, and an inflation channel 64 is provided between the inner wall 61 and the outer wall 62, and the inflation channel 64 is an inflation outlet 66 at the inflation ring plug connector 60; the inflation component 6 is inserted between the tire core 2 and the fiber reinforced hose 4, and the gas enters the inflation channel 64 through the inflation inlet 63, enters the gap 5 through the inflation channel 64 and the inflation outlet 66, and is filled between the tire core 2 and the fiber reinforced hose 4.

[0033] The inflation outlet 66 is close to the position where the fiber reinforced hose contacts the tire core, so that the pressure of the compressed air directly acts on the contact point between the fiber reinforced hose and the tire core, enters between the fiber reinforced hose and the tire core, accelerates the separation of the two, and improves work efficiency.

[0034] like Fig. 9 , 10As shown, the inner wall 61 is matched with the gap of the outer wall of the tire core, that is, after the tire core 2 and the inflation component 6 are threadedly connected, the inner wall of the inflation component 6 is on the outer surface of the tire core 2, covering the tire core 2, and the outer wall 62 of the inflation component 6 is below the inner surface of the fiber reinforced hose end 41, so that the inflation component 6 can be smoothly inserted into the gap 5 to ensure that the outlet of the inflation channel 64 of the inflation component 6 is located in the gap 5; preferably, the upper end of the outer wall 62 is bent toward the direction of the inner wall 61, so that the inflation outlet 66 forms a bevel shape, so that the inflation component can more easily enter the gap 5 between the fiber reinforced hose 4 and the tire core 2 and adapt to the shape of the gap 5, and at the same time, the upper end of the outer wall 62 does not contact the inner wall 61 to ensure that the inflation channel 64 is unobstructed.

[0035] The inflation inlet 63 is provided with an internal thread for threaded connection with the inflation pipe 7. One end of the inflation pipe 7 is connected to the inflation inlet, and the other end is connected to the air storage tank and the screw air compressor. The compressed air enters the inflation channel 64 through the inflation pipe 7 and the inflation inlet 63. The inflation inlet 63 is symmetrically arranged, and multiple inflation inlets 63 can be arranged to speed up the inflation speed, but too many inflation inlets 63 should not be arranged to avoid weakening the bottom strength of the outer wall 62; Axial reinforcing ribs (not shown in the figure) are arranged at intervals in the inflation channel, that is, axial reinforcing ribs are arranged between the outer wall 62 and the inner wall 61, which can not only improve the strength of the outer wall 62, but also ensure smooth ventilation.

[0036] A steel wire or a clamp is provided on the outer surface of the upper end 41 of the fiber reinforced hose, and the steel wire or the clamp presses the upper end 41 of the fiber reinforced hose onto the outer wall of the inflation component 6 to make the two airtightly connected to prevent the compressed gas from overflowing from between the upper end 41 of the fiber reinforced hose and the outer wall.

[0037] Working process: The tire core 2 is connected to the connector 3 by threads to form a tubular tire 1. The internal thread at the end of the connector is connected to the tire core thread. The tube wall of the internal thread is an annular plug-in portion 31. The annular plug-in portion 31 extends out of the internal thread to form a plug-in ring 32. The end of the plug-in ring 32 is in a groove shape. The plug-in ring 32 covers the outer surface of the tire core 2; the surface of the tubular tire 1 is wound with a film and a water cloth in sequence. The water cloth is removed after vulcanization. The film becomes an integrated fiber reinforced hose 4, and the inner surface of the fiber reinforced hose 4 is stepped. Unscrew the connector 3 to form a gap 5 between the tire core 2 and the fiber reinforced hose 4; insert the inflation component 6 between the tire core 2 and the fiber reinforced hose 4. The inflation component 6 is a sandwich barrel-shaped cavity structure, including an inner wall 61 and an outer wall 62. The inner side wall of the inner wall 61 is provided with a thread. The inflation component 6 is connected to the tire core through the thread on the inner wall 61; the inner wall 61 is gap-matched with the outer wall of the tire core. The inflation annular plug connector 60 of the inflation component 6 is inserted into the gap 5, and the inflation outlet 66 is located in the gap 5. The upper end 41 of the fiber reinforced hose is pressed onto the outer wall of the inflation component 6 by a steel wire or a clamp to make the two airtightly connected; the other end of the tire core 2 is connected to the traction machine; one end of the inflation tube 7 is threadedly connected to the inflation inlet 63, and the other end is connected to the air storage tank and the screw air compressor, and the inflation valve is opened. The compressed gas enters the inflation channel 64 through the inflation tube 7 and the inflation inlet 63, and enters the gap 5 through the inflation channel 64 and the inflation outlet 66, and is filled between the tire core 2 and the fiber reinforced hose 4. When the tire core 2 moves to the other end under the impact of the compressed gas, the inflation switch is turned off, the inflation component is removed, and the tire core 2 is pulled out under the external force of the traction machine to obtain a complete fiber reinforced hose, and the two ends of the fiber reinforced hose are cut and modified to obtain a finished fiber reinforced hose.

[0038] Compared with the prior art, the present invention seals both ends of the tire core in the tubular tire to prevent compressed air from entering the tire core, thereby saving energy; the tire core is changed from the original internal thread to an external thread, and a connector with an internal thread is threadedly connected to form a tubular tire. After the film is vulcanized to form a fiber reinforced hose, there is no gap between the fiber reinforced hose and the tubular tire. After removing the connector, since the end of the tire core is set as an external thread and the connector 3 is an internal thread, a gap is reserved between the end of the tire core and the fiber reinforced hose, making it easier for compressed air to rush into the space between the tire core and the fiber reinforced hose, so that the two are separated from each other.

[0039] The inflation component in the present invention is a sandwich barrel-shaped cavity, and the sandwich forms an inflation channel, and the inflation component is inserted between the tire core and the fiber reinforced hose; the inflation channel is located in the middle of the inflation component and is not affected by the clamp, thereby ensuring that the inflation channel is unobstructed; and a threaded connection is adopted to firmly connect the inflation component to the tire core, and compressed air is filled into the space between the fiber reinforced hose and the tire core through the inflation inlet and the inflation channel arranged on the inflation component.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, which should also be regarded as the scope of protection of the present invention.

Claims

1. A special tool for fiber-reinforced hose tube tires with convenient operation, comprising a tire core and a fiber-reinforced hose wrapped around the tire core, characterized in that: The tire core is a hollow tubular structure with sealed 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 plug-in portion (31).

2. The easy-to-operate special tool for fiber-reinforced hose tube tire according to claim 1, characterized in that: The outer diameter of the annular plug-in portion (31) is greater than the outer diameter of the tire core.

3. The easy-to-operate special tool for fiber-reinforced hose tube tire according to claim 2, characterized in that: The annular plug-in portion (31) extends out of the internal thread to form a plug-in ring (32), and the end of the plug-in ring (32) is in a groove shape.

4. An inflatable assembly matched with the special tooling for fiber reinforced hose tube tire according to claim 1, comprising an inflatable assembly, a tire core and a rubber hose covering the tire core, characterized in that: The inflatable component is a sandwich barrel-shaped cavity, which comprises an inner wall (61) and an outer wall (62), wherein the inner wall (61) and the outer wall (62) are concentric hollow barrel-shaped sandwich structures, forming an inflatable annular plug connection portion (60).

5. The inflatable assembly according to claim 4, characterized in that: A handle (65) is provided at the center of the bottom of the inner wall (61), the handle (65) passes through the center of the bottom of the outer wall (62) and is fixedly connected to the outer wall (62); a thread connected to the tire core is provided on the inner side of the inner wall (61); an inflation inlet (63) is provided at the bottom of the outer wall (62), an inflation channel (64) is provided between the inner wall (61) and the outer wall (62), and the inflation channel (64) is an inflation outlet (66) at the inflation annular plug connector (60).

6. The inflatable assembly according to claim 5, characterized in that: The inner wall (61) is clearance-matched with the outer wall of the tire core.

7. The inflatable assembly according to claim 6, characterized in that: The upper end portion of the outer wall (62) is bent toward the inner wall (61), so that the inflation outlet (66) forms a groove shape.

8. The inflatable assembly according to claim 7, characterized in that: The inflation inlet (63) is provided with an internal thread for threaded connection with the inflation tube.

9. The inflatable assembly according to claim 8, characterized in that: Axial reinforcing ribs are arranged at intervals in the inflation channel (64).

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