CN215095792U - Secondary expansion's forming drum - Google Patents
Secondary expansion's forming drum Download PDFInfo
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- CN215095792U CN215095792U CN202120314667.4U CN202120314667U CN215095792U CN 215095792 U CN215095792 U CN 215095792U CN 202120314667 U CN202120314667 U CN 202120314667U CN 215095792 U CN215095792 U CN 215095792U
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Abstract
The utility model relates to the technical field of tire molding, in particular to a secondary expansion molding drum, which comprises a main shaft and a secondary expansion mechanism arranged on the main shaft and used for secondary expansion of a tire, wherein the secondary expansion mechanism comprises a linkage seat and a linkage rod, the linkage seat is sleeved on the main shaft, a plurality of linkage rods are circumferentially connected on the outer side surface of the linkage seat at intervals, the secondary expansion mechanism comprises a pushing component used for driving the linkage rod to be unfolded and a limiting component used for limiting the stroke of the pushing component, the pushing component is arranged along the main shaft and connected on the right side surface of the linkage seat, the limiting component is arranged along the main shaft and connected on the left side surface of the linkage seat, the utility model has the advantages that the secondary molding process of the molding drum is controlled by the arrangement of the limiting component and the pushing component, the precision of the product is improved, the standardization of the product is also improved, the product is prevented from being uneven due to the fact that the precision of the molding drum cannot be controlled in the production process, improve the product quality and the income.
Description
Technical Field
The utility model relates to a tire shaping technical field especially relates to a secondary expansion's building drum.
Background
At present, most of the laminating drums for two-stage molding of semi-steel radial tires are ten-watt or twelve-watt laminating drums, and the problems of inconvenient adjustment, low production efficiency, tire blanks, uneven molding quality, low precision and the like exist due to the fact that the drum blocks of the laminating drums are few.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a solve the building drum of a secondary expansion of at least one technical problem design in the background art.
In order to achieve the above purpose, the utility model adopts the following scheme: the utility model provides a building drum of secondary expansion, its includes the main shaft and sets up the secondary expansion mechanism who is used for tire secondary expansion on the main shaft, secondary expansion mechanism includes linkage seat and link rod, the linkage seat suit is in on the main shaft, and is a plurality of link rod circumference interval is connected on the lateral surface of linkage seat, secondary expansion mechanism is including being used for the drive the link rod struts promote the subassembly, be used for injecing the spacing subassembly that promotes the subassembly stroke, promote the subassembly along the main shaft sets up and connects the right flank of linkage seat, spacing subassembly along the main shaft sets up and connects the left surface of linkage seat.
The pushing assembly comprises a push rod and a linkage pin, the push rod is installed in an inner cavity of the main shaft along a central shaft of the main shaft, a first through hole penetrating through the main shaft is formed in the main shaft, and two ends of the linkage pin penetrate through the first through hole respectively and are connected with the linkage seat.
Wherein the length of the first through hole is greater than the width of the linkage pin.
And a second through hole matched with the linkage pin is formed in the position, corresponding to the linkage pin, of the push rod, and two ends of the linkage pin penetrate through the second through hole respectively to be connected with the main shaft and the linkage seat.
The limiting assembly comprises a stop lever and a piston cylinder, one end of the stop lever is located on one side of the linkage seat and limits axial movement of the linkage seat, the other end of the stop lever is connected with the piston cylinder, and the piston cylinder is fixedly connected to the main shaft.
The stop lever comprises a protective layer, and the protective layer is connected to one surface, facing the linkage seat, of the stop lever.
The forming drum comprises a left guide disc and a right guide disc, the left guide disc is arranged between the piston cylinder and the linkage seat, the right guide disc is arranged on the right side of the linkage seat and sleeved on the main shaft, and a working cavity is formed between the left guide disc and the right guide disc.
The main shaft is sleeved with a limiting snap ring and a limiting nut and used for limiting the stroke of the linkage seat, the limiting snap ring is arranged between the left guide disc and the linkage seat, the limiting snap ring is sleeved on the main shaft, the limiting nut is arranged between the piston cylinder and the left guide disc, and the limiting nut is sleeved on the main shaft.
Wherein, the link rod arranged on the same link seat has one group or a plurality of groups.
One side of the linkage pin, which is close to the right guide disc, is provided with a linkage end cover, the linkage end cover is sleeved on the main shaft, and the linkage end cover is connected with the linkage seat.
The utility model has the advantages of through the setting of spacing subassembly with the promotion subassembly for the post forming process of shaping drum obtains controlling, improves the precision of product, also improves the standardization of product, prevents that the product from leading to the product uneven because of the unable control of precision of shaping drum in process of production, improves product quality, improves the income.
Drawings
FIG. 1 is a schematic view of a two-shot expanding building drum;
FIG. 2 is a partial schematic view of a two-shot expanding building drum;
FIG. 3 is a partial schematic view of a two-shot expanding building drum;
FIG. 4 is a schematic view of a support of a two-shot building drum;
figure 5 is a schematic view of a two-shot building drum.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which function is to supplement the description of the text part of the specification with figures, so that each technical feature and the whole technical solution of the present invention can be understood visually and vividly, but it cannot be understood as a limitation to the scope of the present invention.
In the description of the present invention, if an orientation description is referred to, for example, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, only for convenience of description and simplification of description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. When a feature is referred to as being "disposed," "secured," or "connected" to another feature, it can be directly disposed, secured, or connected to the other feature or be indirectly disposed, secured, or connected to the other feature.
In the description of the present invention, if "a plurality" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "more than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "more than", "less than" or "within" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.
In addition, unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Example (b): as shown in fig. 1 to 5, a secondary expansion building drum comprises a main shaft 1 and a secondary expansion mechanism arranged on the main shaft 1 and used for performing secondary expansion on a tire, wherein the secondary expansion mechanism comprises a linkage seat 1101 and a link 1102, the linkage seat 1101 is sleeved on the main shaft 1, a plurality of links 1102 are circumferentially connected to the outer side surface of the linkage seat 1101 at intervals, the secondary expansion mechanism comprises a pushing assembly used for driving the link 1102 to expand and a limiting assembly used for limiting the stroke of the pushing assembly, the pushing assembly is arranged along the main shaft 1 and connected to the right side surface of the linkage seat 1101, and the limiting assembly is arranged along the main shaft and connected to the left side surface of the linkage seat 1102.
The pushing assembly comprises a push rod 1104 and a linkage pin 1103, the push rod 1104 is installed in an inner cavity of the spindle 1 along a central axis of the spindle 1, a first through hole 1001 which penetrates through the spindle 1 is formed in the spindle 1, and two ends of the linkage pin 1103 respectively penetrate through the first through hole 1001 to be connected with the linkage seat 1101.
Wherein the length of the first through hole 1001 is greater than the width of the interlocking pin 1103.
A second through hole 1113 matched with the linkage pin 1103 is arranged at a position of the push rod 1104 corresponding to the linkage pin 1103, and two ends of the linkage pin 1103 respectively penetrate through the second through hole 1113 to be connected with the spindle 1 and the linkage base 1103.
The limiting assembly comprises a stop lever 2101 and a piston cylinder 2, one end of the stop lever 2101 is located on one side of the linkage seat 1101 and limits axial movement of the linkage seat 1101, the other end of the stop lever 1101 is connected with the piston cylinder 2, and the piston cylinder 2 is fixedly connected to the spindle 1.
The piston cylinder 2 comprises a piston 2201, a cylinder body 2202, a left cylinder cover 2203 and a right cylinder cover 2204, the piston 2201 is fixedly sleeved on the main shaft 1, the cylinder body 2202 is arranged on the outer side of the piston 2201, the left cylinder cover 2203 and the right cylinder cover 2204 are respectively arranged on two sides of the piston 2201, and the left cylinder cover 2203 and the right cylinder cover 2204 are respectively connected with two sides of the cylinder body 2202.
The left cylinder cover 2203 and the piston 2201 form a first air chamber 2221, and the right cylinder cover 2204 and the piston 2202 form a second air chamber 2222.
The forming drum comprises a left guide disc 3101 and a right guide disc 3102, the left guide disc 3101 is arranged between the piston cylinder 2 and the linkage seat 1101, the right guide disc 2102 is arranged at the right side of the linkage seat 1101 and sleeved on the main shaft 1, and a working cavity 3110 is formed between the left guide disc 3101 and the right guide disc 3102.
A limit snap ring 4101 and a limit nut 4102 are sleeved on the main shaft 1 for limiting the stroke of the linkage seat 1101, the limit snap ring 4101 is arranged between the left guide plate 3101 and the linkage seat 1101, the limit snap ring 4101 is sleeved on the main shaft 1, the limit nut 4102 is arranged between the piston cylinder 2 and the left guide plate 3101, and the limit nut 4102 is sleeved on the main shaft 1.
One or more groups of the links 1102 are arranged in the same linkage seat 1101.
The linkage end cover 1105 is arranged on one side of the linkage pin 1103 close to the right guide disc 3102, the linkage end cover 1105 is sleeved into the spindle 1 along the axial direction of the spindle 1, and the linkage end cover 1105 is detachably connected with the linkage seat 1101, so that the linkage pin 1103 and the linkage seat 1101 are relatively fixed.
Wherein, be provided with a plurality of support 5001 and a plurality of drum shoulder 5002 in the periphery of main shaft 1, support 5001 distributes in the periphery of working chamber 3110 around main shaft 1 circumference, and support 5001 includes lower connecting portion 5121, last connecting portion 5111, and lower connecting portion 5121 and working chamber 3110 cooperation just set up in working chamber 3110, go up connecting portion 5111 and set up the outside at working chamber 3110, and drum shoulder 5002 corresponds and is connected on the top surface of lower connecting portion 5121.
A ridge-type link connection hole is formed in the upper circumference of the linkage holder 1101, one end of the link 1102 is rotatably connected to the link connection hole, and the other end of the link 1102 is rotatably connected to the lower connection part 5121.
The drum shoulder 5002 includes a large drum shoulder 5112 and a small drum shoulder 5122, and the large drum shoulder 5112 and the small drum shoulder 5122 are respectively connected to the upper connecting portion 5121 along an interval.
The stop lever 2101 penetrates the left guide plate 3101 along the central axis direction of the main shaft 1, one end of the stop lever 2101 is positioned at one side of the linkage seat 1101 and limits the axial movement of the linkage seat 1101, the other end of the stop lever 2101 is fixedly connected with the right cylinder cover 2204, and a plurality of stop levers 2101 are distributed around the circumference of the main shaft 1.
A fixed snap ring 4103 is provided on the side of the piston 2201 close to the left cylinder head 2203, the fixed snap ring 4103 is fitted around the main shaft 1, and one end of the fixed snap ring 4103 is in contact with the piston 2201 to restrict the movement of the piston 2201 along the axial direction of the main shaft 1, so that the piston 2201 is fixed on the main shaft 1.
The first buffer piece is arranged on one side, close to the linkage seat 1101, of the right guide disc 3102 and is attached to the right guide disc 3102, the first buffer piece plays a role in shock absorption and noise reduction when the linkage seat 1101 is contacted with the right guide disc 3102, the second buffer piece is arranged on one side, close to the left guide disc 3101, of the linkage seat 1101 and is attached to the linkage seat 1101, and the second buffer piece plays a role in shock absorption and noise reduction when the linkage seat 1101 is contacted with the left guide disc 3101.
The blocking rod 2101 comprises a protection layer 2111, the protection layer is connected to one surface, facing the linkage seat, of the blocking rod, the protection layer 2111 is detachably connected with the blocking rod 2101, and damage between the blocking rod 2101 and the linkage seat 1101 is reduced due to the protection layer 2111.
The protection layer 2111 includes a pressure-resistant layer, a thermal insulation layer, and a friction layer, the pressure-resistant layer is connected to the lever 2101, the thermal insulation layer is disposed on a surface of the pressure-resistant layer facing the linkage seat 1101, and the friction layer is disposed on a surface of the thermal insulation layer facing the linkage seat 1101.
Wherein, the friction layer is provided with the jut on the face towards linkage seat 1101, and a plurality of juts distribute on the surface of friction layer for the pin increases the friction when the linkage seat contacts, prevents to skid, improves the life of forming drum.
The maximum distance between the link 1102 and the central axis of the spindle 1 is smaller than the maximum distance between the linear guide 6001 and the central axis of the spindle 1.
One surface of the linkage end cover 1105 close to the first buffer member is contacted, the angle between the link rod 1102 and the main shaft 1 is minimum, the bracket 5001 and the drum shoulder 5002 are shortest from the central shaft of the main shaft 1, the stop lever 2101 is not contacted with the linkage seat 1101, the left cylinder cover 2203 is contacted with the piston 2201, and the second air chamber 2222 is in an initial state of the forming drum when being inflated.
When the forming drum is started, the push rod 1104 moves from right to left in the spindle 1 along the axial direction of the spindle 1, the push rod 1104 drives the linkage pin 1103 to act on the linkage seat 1101 to move along with the push rod 1104, one end of the link 1102 is connected to the linkage seat 1101, the linkage seat 1101 pushes the link 1102 to rotate, so that the angle between the link 1102 and the spindle 1 is increased, the maximum distance between the link 1102 and the central axis of the spindle 1 is increased, the link 1102 acts on the lower connecting portion 5111 through the pushing of the linkage seat 1101, so that the support 5001 moves along the linear guide groove along the direction of the central axis far away from the spindle 1 under the driving of the link 1102, meanwhile, the drum shoulder 5002 is also driven to move along the direction of the central axis far away from the spindle 1, and when the linkage seat 1101 moves to be connected with the stop lever 2101, the forming drum completes the first expansion.
The push rod 1104 does not stop pushing, the linkage pin 1103 is continuously pushed and the linkage seat 1101 is driven, at this time, the second air chamber 2222 is exhausted, the first air chamber 2221 is inflated, so that the right cylinder cover 2204 moves towards the direction close to the piston 2201, and simultaneously the left cylinder cover 2203 moves towards the direction far away from the piston 2201, so that the baffle 2101 connected to the right cylinder cover 2204 is driven to move along with the right cylinder cover 2204 towards the direction close to the piston 2201, so that the linkage seat 1101 continues to move towards the left by the pushing force of the push rod 1104, and the linkage seat 1101 enables the bracket 5001 and the drum shoulder 5002 to continue to move towards the direction far away from the spindle 1 through the connecting rod 1102.
The linkage holder 1101 moves to the position where the linkage holder 4101 is contacted, the right cylinder cover 2204 is contacted with the piston 2201, at this time, the distance between the link 1102 and the bracket 5001 is farthest from the main shaft 1, and the forming drum completes the second expansion.
When the expansion is completed, the first air chamber 2221 is exhausted and the second air chamber 2222 is inflated, meanwhile, the push rod 1104 moves towards the initial state along the axial direction of the main shaft 1, the stop lever 2101 pushes the linkage seat 1101 to move from right to left along the axial direction of the main shaft 1, the link 1102 is driven to move towards the first buffer, the support 5001 and the drum shoulder 5002 move towards the direction close to the main shaft 1, when the linkage seat 1101 moves away from the stop lever 2101, the linkage seat 1101 continues to move from right to left along the axial direction of the main shaft 1 by the thrust of the push rod 1104 until the linkage seat 1101 moves to the initial state, and the forming drum returns to the initial state.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A secondary expansion's building drum, its includes the main shaft and sets up the secondary expansion mechanism who is used for the secondary expansion to the tire on the main shaft, secondary expansion mechanism includes linkage seat and link rod, the linkage seat suit is in on the main shaft, a plurality of link rod circumference interval connect on the lateral surface of linkage seat, its characterized in that: the secondary expansion mechanism comprises a pushing assembly used for driving the connecting rod to be spread and a limiting assembly used for limiting the stroke of the pushing assembly, the pushing assembly is arranged along the main shaft and connected to the right side face of the linkage seat, and the limiting assembly is arranged along the main shaft and connected to the left side face of the linkage seat.
2. A two-expansion building drum according to claim 1, characterised in that: the pushing assembly comprises a push rod and a linkage pin, the push rod is installed in an inner cavity of the main shaft along a central shaft of the main shaft, a first through hole penetrating in the radial direction is formed in the main shaft, and two ends of the linkage pin penetrate through the first through hole respectively and are connected with the linkage seat.
3. A two-expansion building drum according to claim 2, characterised in that: the length of the first through hole is larger than the width of the linkage pin.
4. A two-expansion building drum according to claim 2 or 3, characterised in that: and a second through hole matched with the linkage pin is formed in the position, corresponding to the linkage pin, of the push rod, and two ends of the linkage pin penetrate through the second through hole respectively to be connected with the main shaft and the linkage seat.
5. A two-expansion building drum according to claim 2 or 3, characterised in that: the limiting assembly comprises a stop lever and a piston cylinder, one end of the stop lever is located on one side of the linkage seat and limits axial movement of the linkage seat, the other end of the stop lever is connected with the piston cylinder, and the piston cylinder is fixedly connected to the main shaft.
6. A two-expansion building drum according to claim 5, characterised in that: the stop lever includes the protective layer, the protective layer is connected the stop lever orientation on the one side of linkage seat.
7. A two-expansion building drum according to claim 5 or 6, characterised in that: the forming drum comprises a left guide disc and a right guide disc, the left guide disc is arranged between the piston cylinder and the linkage seat, the right guide disc is arranged on the right side of the linkage seat and sleeved on the main shaft, and a working cavity is formed between the left guide disc and the right guide disc.
8. A two-expansion building drum according to claim 7, characterised in that: the main shaft is sleeved with a limiting snap ring for limiting the stroke of the linkage seat and a limiting nut for limiting the left guide disc to move leftwards along the main shaft, the limiting snap ring is arranged between the left guide disc and the linkage seat, the limiting snap ring is sleeved on the main shaft, the limiting nut is arranged between the piston cylinder and the left guide disc, and the limiting nut is sleeved on the main shaft.
9. A two-expansion building drum according to claim 8, characterised in that: one group or a plurality of groups of the connecting rods are arranged on the same connecting seat.
10. A two-expansion building drum according to claim 7, characterised in that: and a linkage end cover is arranged on one side of the linkage pin close to the right guide disc, the linkage end cover is sleeved on the main shaft, and the linkage end cover is connected with the linkage seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120314667.4U CN215095792U (en) | 2021-02-03 | 2021-02-03 | Secondary expansion's forming drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120314667.4U CN215095792U (en) | 2021-02-03 | 2021-02-03 | Secondary expansion's forming drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215095792U true CN215095792U (en) | 2021-12-10 |
Family
ID=79334321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120314667.4U Active CN215095792U (en) | 2021-02-03 | 2021-02-03 | Secondary expansion's forming drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215095792U (en) |
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2021
- 2021-02-03 CN CN202120314667.4U patent/CN215095792U/en active Active
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