CN220198621U - Simple inflatable shaping device for inner tube of bicycle before vulcanization - Google Patents
Simple inflatable shaping device for inner tube of bicycle before vulcanization Download PDFInfo
- Publication number
- CN220198621U CN220198621U CN202321750762.4U CN202321750762U CN220198621U CN 220198621 U CN220198621 U CN 220198621U CN 202321750762 U CN202321750762 U CN 202321750762U CN 220198621 U CN220198621 U CN 220198621U
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- inflation
- inner tube
- shaping
- tube
- switch
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- 238000007493 shaping process Methods 0.000 title claims abstract description 82
- 238000004073 vulcanization Methods 0.000 title claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004513 sizing Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 240000007651 Rubus glaucus Species 0.000 description 1
- 235000011034 Rubus glaucus Nutrition 0.000 description 1
- 235000009122 Rubus idaeus Nutrition 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Tires In General (AREA)
Abstract
The utility model discloses a simple inflatable shaping device before vulcanizing a bicycle inner tube.A shaping die is fixed at the top end of a bracket, the inner side wall of the shaping die is provided with an inflating valve extension opening, an inflating tube penetrates through the top end of the bracket and extends into the shaping die, a hose section connected with the inflating valve of the inner tube is arranged in the shaping die, and an inflating switch is connected in series with the inflating tube and is arranged below the bracket; the inflation tube is also connected in series with a flowmeter and/or a manometer between the hose section and the inflation switch, and is also provided with a control device with a signal input end electrically connected with a signal output end of the flowmeter and the manometer, and a signal output end of the control device is electrically connected with a control end of the inflation switch. The utility model is provided with the inflation tube with the tube section in the shaping die, and the inflation tube is connected with the control device in series with the flowmeter and/or the parallel pressure meter to control the inflation switch, thereby being convenient for inflation connection, accurately controlling the inflation quantity to ensure the shaping quality of the inner tube, and having the characteristics of simple structure, convenient connection, accurate control and good shaping effect.
Description
Technical Field
The utility model relates to the technical field of rubber equipment, in particular to a simple inflatable shaping device for a tire tube of a bicycle, which has the advantages of simple structure, convenience in connection, accuracy in control and good shaping effect.
Background
The bicycle includes bicycle, handcart, man-power tricycle and other non-motor vehicles, and the bicycle inner tube is a circular elastic tube for inflation vibration damping for maintaining the inner pressure of the bicycle inner tube and with a valve, so that the finished product of the bicycle inner tube has good air tightness, and has the advantages of uniform appearance thickness and shape, and no defects of flaws, cracks, bubbles, sponginess, impurities and the like affecting the service performance. For this reason, the extrusion process and the vulcanization process of the inner tube of the bicycle are particularly important. At present, the vulcanizing process of the inner tube of the bicycle generally comprises the following steps: the joint inner tube is inflated in the shaping mould, paraffin is blocked for air retention, air retention and shaping are carried out, the vulcanizing mould is opened, the inflated inner tube is put in, the mould is closed for inflation, and heating vulcanization is carried out. Because the tube of the inner tube before inflation shaping has plasticity, the tube is inflated and stretched to form the same ring shape as the shaping die after being put into the shaping die, and then vulcanized to form the inner tube meeting the size requirement.
The inflation shaping of the inner tube of the bicycle is mainly performed by presetting the shape of the finished product of the inner tube, detecting the size of the tube and three-dimensionally shaping the tube so as to be convenient for entering the mould. In the prior art, for the pre-shaping of the finished product shape of the inner tube of the bicycle, the inflation tube suspended above the shaping die is generally controlled by manpower to inflate the tube, so that the suspended inflation tube can easily block the inner tube in the shaping die, and in order to reserve the space for the inner tube to enter and exit the shaping die, the distance between the inflation tube and the inflating valve is larger, and the preparation time for inflation is increased; and the gas amount of the inner tube filled by staff in the actual operation process is difficult to control accurately, and too much or too little gas can cause clamping injury of the inner tube during vulcanization of the inner tube, so that a series of adverse effects can be caused on the finished product of the inner tube.
In order to solve the problem of inflation shaping in the prior art, a rigid inflation tube is fixed in a shaping die, and an inner tube inflating valve sleeved in the shaping die is pulled and inserted into the inflation tube to realize connection inflation, so that the inflation preparation time is shortened, and the problem that the inflation tube blocks the inner tube to be taken is also solved; however, when the inner tube is inflated, the inflating valve has the tendency of outward movement and left and right position adjustment along with the expansion and the tensioning of the inner tube, at the moment, the inflating valve is connected with the rigid fixed inflation tube, so that the air leakage is caused, and the inflating valve is limited by the rigid inflation tube, so that the hidden danger of tearing of the inner tube wall connected with the bottom is easily caused. Of course, in order to solve the problem of inconvenient control of the inflation amount of the inner tube of a tyre manually in the prior art, there are photoelectric switches or proximity switches, contact switches and the like arranged on the shaping die, the inflation amount of the inner tube of a tyre is indirectly controlled by detecting the inflation amount of the inner tube of a tyre, although the inflation amount is more accurately controlled by experience compared with manual control, the adverse effect caused by inaccurate inflation amount control can be greatly reduced, but part of the control structure is more complicated, such as the contact switches, so that later maintenance is more difficult, and part of the control structure is simple, such as the photoelectric switches, but the problem of lower inflation amount control precision due to larger measurement error caused by air pollution of the production environment exists.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides the simple inflatable shaping device for the inner tube of the bicycle before vulcanization, which has the advantages of simple structure, convenient connection, accurate control and good shaping effect.
The utility model is realized in the following way: the inflation valve comprises a support, a sizing die, an inflation tube and an inflation switch, wherein the sizing die is fixedly arranged on the plane of the top end of the support, an inflation valve extending port is formed in the inner side wall of the sizing die, the inflation tube penetrates through the plane of the top end of the support and extends to the middle of the sizing die, a hose section connected with an inflation valve of an inner tube is arranged in the sizing die, and the inflation switch is connected in series with the inflation tube and is arranged below the support; the inflation tube is also connected in series with a flowmeter and/or a manometer between the hose section and the inflation switch, and is also provided with a control device with signal input ends electrically connected with signal output ends of the flowmeter and the manometer respectively, and the signal output ends of the control device are electrically connected with the control end of the inflation switch.
The utility model has the beneficial effects that:
1. according to the utility model, the air charging pipe with the hose section is arranged in the shaping die, the movement distance between the air charging pipe and the inflating valve of the inner tube can be reduced, the air charging preparation time can be effectively reduced to improve the air charging shaping efficiency, and the hose section arranged on the air charging pipe can be butted with the inflating valve of the inner tube in the shaping die to form a flexible connection structure by pulling the hose section, so that the hose section can be self-adaptively moved and adjusted when the inner tube is inflated, the problem that the air charging amount is insufficient and the inner tube at the bottom of the inflating valve is torn due to air leakage can be effectively avoided, and the air charging shaping quality can be remarkably improved.
2. According to the utility model, the flowmeter and/or the parallel manometer are/is connected in series on the inflation tube, the control device is arranged to collect the air flow and the air pressure in the inflation tube, and the control device controls the start and stop of the inflation switch according to the preset value, so that the inflation quantity of the inner tube can be accurately controlled to ensure the shaping quality of the inner tube, and compared with the structure that the flowmeter and/or the parallel manometer are electrically connected with the control device, the structure is simpler and convenient for later maintenance, and the influence of the environment on the detection result can be avoided by directly detecting the flow and/or the pressure, so that the reliability of the detection result can be effectively improved.
3. The control circuit of the inflation switch is further connected with a power supply through a foot switch, and a normally closed switch controlled by a signal output end of the control device is also connected between the foot switch and the power supply; the inflation is controlled by combining the foot switch and the control device, the foot switch can liberate both hands so as to improve the inflation shaping efficiency and reduce the labor intensity, and the control device can also effectively improve the control precision of the inflation quantity, thereby avoiding the adverse effect caused by the excessive or the insufficient inflation quantity of the inner tube and obviously improving the inflation shaping quality of the inner tube.
Therefore, the utility model has the characteristics of simple structure, convenient connection, accurate control and good shaping effect.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a partial cross-sectional view of FIG. 1;
in the figure: 1-bracket, 2-shaping die, 21-valve outlet, 22-inner tube shaping cavity, 23-abdication groove, 24-connecting plate, 3-inflation tube, 31-hose section, 32-base, 4-inflation switch, 5-flowmeter, 6-manometer, 7-foot switch, 9-bolt.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1, 2 and 3, the utility model comprises a bracket 1, a shaping die 2, an inflation tube 3 and an inflation switch 4, wherein the shaping die 2 is fixedly arranged on the plane of the top end of the bracket 1, the inner side wall is provided with an inflating valve extending port 21, the inflation tube 3 penetrates through the plane of the top end of the bracket 1 and extends to the middle part of the shaping die 2, the inflation tube 3 is internally provided with a hose section 31 connected with an inner tube inflating valve in the shaping die 2, and the inflation switch 4 is connected in series with the inflation tube 3 and is arranged below the bracket 1; the inflation tube 3 is further connected in series with a flowmeter 5 and/or a manometer 6 connected in parallel between the hose segment 31 and the inflation switch 4, and is further provided with a control device (not shown in the figure) with signal input ends electrically connected with the signal output ends of the flowmeter 5 and the manometer 6 respectively, and the signal output end of the control device is electrically connected with the control end of the inflation switch 4.
The inflation switch 4 is an electromagnetic valve, a control circuit of the inflation switch 4 is connected with a power supply through a foot switch 7, and a normally closed switch controlled by a signal output end of the control device is further connected between the foot switch 7 and the power supply by the control circuit of the inflation switch 4.
The inflation tube 3 is a rigid tube or a hose and is coaxially and fixedly provided with a circular base 32, the inflation tube 3 below the base 32 penetrates through the plane of the top end of the support 1 in a sliding mode, and a hose section 31 connected with an inner tube inflating valve is arranged above the plane of the top end of the support 1 of the inflation tube 3.
The foot switch 7 is a self-locking foot switch.
The shaping die 2 is of an annular structure, an annular inner tube shaping cavity 22 with an open upper part is arranged at the upper end of the shaping die, the inner side wall of the inner tube shaping cavity 22 is higher than the outer side wall, and the valve outlet 21 is of an open upper part and vertically penetrates through the inner side wall of the inner tube shaping cavity 22.
The inner wall of the shaping die 2 is provided with a relief groove 23 which takes the valve outlet 21 as the center.
The inner diameter of the inner tube cavity 22 is larger than that of the inner tube cavity of the inner tube vulcanizing mould, and the outer diameter of the inner tube cavity of the inner tube vulcanizing mould is smaller than that of the inner tube cavity of the inner tube vulcanizing mould.
The height of the outer side wall of the inner tube sizing cavity 22 is not more than 0.5 time of the width of the inner tube after sizing, and the height of the inner side wall is more than 0.6 time of the width of the inner tube after sizing.
The shaping die is characterized in that an annular connecting plate 24 is arranged at the outer edge or the inner edge of the bottom end of the shaping die 2, at least three connecting holes are uniformly distributed in the connecting plate 24, and the shaping die 2 is fixedly connected with the plane of the top end of the support 1 through bolts 9 penetrating through the connecting holes in the connecting plate 24.
The control device is any controller which can be used for industrial automatic control such as a PC, a PLC, an industrial personal computer or a raspberry group and the like and a control circuit connected with the controller.
The working principle of the utility model is as follows:
as shown in fig. 1, 2 and 3, when the inner tube is inflated and shaped, an air source and a PLC (i.e. a control device) connected with an inflation tube 3 are started, then the inner tube to be inflated and shaped is sleeved into an inner tube shaping cavity 22 of a shaping die 2, the inflating valve of the inner tube is aligned and extends out of an inflating valve extending outlet 21, then a soft tube section 31 of the inflation tube 3 is pulled to be sleeved on the inflating valve of the inner tube to form reliable connection, the inner tube in the inner tube shaping cavity 22 is tidied, then a foot is used for closing a foot switch 7, so that the inflation switch 4 is opened to inflate the inner tube, the flowmeter 5 and/or the pressure gauge 6 transmit acquired data to the PLC in the inflation process, the PLC compares the received data with a preset value, when the received data exceeds the preset value, the normally closed switch is controlled to be opened, the inflation switch 4 is powered off and the communication between the inflation tube 3 and the air source is cut off, at the moment, the inflating valve is completely inflated and the shaping die is kept in a certain period, then the hose section 31 connected with the inflating valve can be disconnected, the inflating valve is sealed or the inner tube is installed, and finally the inner tube is taken out, and the inflation and shaped is finished.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims (8)
1. The simple inflation shaping device for the inner tube of the bicycle before vulcanization is characterized by comprising a support (1), a shaping die (2), an inflation tube (3) and an inflation switch (4), wherein the shaping die (2) is fixedly arranged on the plane at the top end of the support (1), an inflation valve extending opening (21) is formed in the inner side wall of the shaping die, the inflation tube (3) penetrates through the plane at the top end of the support (1) and extends to the middle part of the shaping die (2), a hose section (31) connected with the inflation valve of the inner tube is arranged in the shaping die (2), and the inflation switch (4) is connected in series with the inflation tube (3) and is arranged below the support (1); the inflation tube (3) is also connected in series with a flowmeter (5) and/or a manometer (6) in parallel between the hose section (31) and the inflation switch (4), and is also provided with a control device of which the signal input ends are respectively electrically connected with the signal output ends of the flowmeter (5) and the manometer (6), and the signal output end of the control device is electrically connected with the control end of the inflation switch (4).
2. The simple inflation shaping device before vulcanizing the inner tube of the bicycle according to claim 1, characterized in that the inflation switch (4) is an electromagnetic valve, a control circuit of the inflation switch (4) is connected with a power supply through a foot switch (7), and a normally closed switch controlled by a signal output end of the control device is further connected between the foot switch (7) and the power supply by the control circuit of the inflation switch (4).
3. The simple inflation shaping device before vulcanizing the inner tube of the bicycle according to claim 1 or 2, characterized in that the inflation tube (3) is a rigid tube or a hose and is coaxially and fixedly provided with a circular base (32), the inflation tube (3) below the base (32) slides through the plane at the top end of the bracket (1), and the inflation tube (3) is provided with a hose section (31) connected with the inflating valve of the inner tube above the plane at the top end of the bracket (1).
4. A simple inflatable shaping device before vulcanizing a bicycle inner tube according to claim 3, characterized in that the shaping die (2) is of an annular structure, an annular inner tube shaping cavity (22) with an open upper part is arranged at the upper end of the shaping die, the inner side wall of the inner tube shaping cavity (22) is higher than the outer side wall, and the valve extending opening (21) is the inner side wall with the open upper part and vertically penetrates through the inner tube shaping cavity (22).
5. The simple inflatable shaping device before vulcanizing the inner tube of the bicycle according to claim 4, wherein a relief groove (23) centering on the valve outlet (21) is arranged on the inner wall of the shaping die (2).
6. The simple inflation shaping device before vulcanizing the inner tube of the bicycle as claimed in claim 4, wherein the inner diameter of the inner tube shaping cavity (22) is larger than that of the inner tube cavity of the inner tube vulcanizing mold, and the outer diameter of the inner tube shaping cavity of the inner tube vulcanizing mold is smaller than that of the inner tube cavity of the inner tube vulcanizing mold.
7. The simple inflation shaping device before vulcanizing the inner tube of the bicycle according to claim 6, wherein the height of the outer side wall of the inner tube shaping cavity (22) is not more than 0.5 time of the width of the inner tube after shaping and the height of the inner side wall is more than 0.6 time of the width of the inner tube after shaping.
8. The simple inflatable shaping device before vulcanizing the inner tube of the bicycle according to claim 4, wherein an annular connecting plate (24) is arranged at the outer edge or the inner edge of the bottom end of the shaping die (2), at least three connecting holes are uniformly distributed on the connecting plate (24), and the shaping die (2) is fixedly connected with the plane at the top end of the bracket (1) through bolts (9) penetrating through the connecting holes on the connecting plate (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321750762.4U CN220198621U (en) | 2023-07-05 | 2023-07-05 | Simple inflatable shaping device for inner tube of bicycle before vulcanization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321750762.4U CN220198621U (en) | 2023-07-05 | 2023-07-05 | Simple inflatable shaping device for inner tube of bicycle before vulcanization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220198621U true CN220198621U (en) | 2023-12-19 |
Family
ID=89142467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321750762.4U Active CN220198621U (en) | 2023-07-05 | 2023-07-05 | Simple inflatable shaping device for inner tube of bicycle before vulcanization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220198621U (en) |
-
2023
- 2023-07-05 CN CN202321750762.4U patent/CN220198621U/en active Active
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