CN220763634U - Engineering tire small-angle joint equipment - Google Patents

Abstract

The utility model provides engineering tire small angle joint equipment, which comprises: a discharging device; the feeding device is in butt joint with the discharging device; the joint device is positioned at the joint of the discharging device and the feeding device and is in lap joint with the discharging device and the feeding device; the joint driving device is rotatably arranged, the rotation axis of the joint device is positioned at the joint of the discharging device and the feeding device, and the joint driving device is in driving connection with the joint device and drives the joint device to rotate; and the feeding driving device is in driving connection with the feeding device, and when the joint device rotates, the feeding driving device drives the feeding device to move along the conveying direction, and the feeding device drives the discharging device to move together so as to adapt to the angle adjustment of the joint device. The utility model solves the problem that the small-angle engineering tire joint device in the prior art cannot finish the belt joint with the angle smaller than 15 degrees.

Description

Engineering tire small-angle joint equipment

Technical Field

The utility model relates to the technical field of tire processing, in particular to engineering tire small-angle joint equipment.

Background

The cord belt plays a critical role in the tire production process. The production of the belt ply is to cut the wirecord fabric into cord fabric strips according to the angle and width required by the tire technology, then feed, splice and discharge the cord fabric strips, wrap the cord fabric strips Bian Tiebian and finally roll the cord fabric strips on the trolley. With the market demand of engineering tires and technological innovation, the width of the belted layer is continuously increased, and the angle is continuously reduced.

The length of the bevel edge of the small-angle engineering tire joint is about 4 meters, and the feeding conveyer belt and the discharging conveyer belt of the current conveyer belt usually adopt a strip-shaped telescopic belt structure to complete the splicing action, so that the joint is used as power to drive the feeding conveyer belt and the discharging conveyer belt to translate together. Aiming at the special requirement of the small-angle engineering tire on the belt layer angle, the joint is adopted to drive the feeding conveyor belt and the discharging conveyor belt to move in a translational mode together, splicing can only be achieved between 15 degrees and 90 degrees, and when the angle is smaller than 20 degrees, the two strip-shaped belt frames at the outermost side can skew, so that feeding precision is inaccurate, and the process requirement of the belt layer smaller than 15 degrees cannot be met.

Disclosure of Invention

The utility model mainly aims to provide engineering tire small-angle joint equipment, which solves the problem that a small-angle engineering tire joint device in the prior art cannot finish a belt joint smaller than 15 degrees.

In order to achieve the above object, the present utility model provides a small angle joint apparatus for an engineering tire, comprising: the discharging device is provided with a discharging telescopic belt for conveying curtain cloth strips; the feeding device is in butt joint with the discharging device, and the discharging device is provided with a feeding telescopic belt for conveying curtain cloth strips; the joint device is positioned at the joint of the discharging device and the feeding device, is in lap joint with the discharging device and the feeding device, and conveys the curtain strips to the joint device for splicing; the joint driving device is rotatably arranged, the rotation axis of the joint device is positioned at the joint of the discharging device and the feeding device, and the joint driving device is in driving connection with the joint device and drives the joint device to rotate; and the feeding driving device is in driving connection with the feeding device, and when the joint device rotates, the feeding driving device drives the feeding device to move along the conveying direction, and the feeding device drives the discharging device to move together so as to adapt to the angle adjustment of the joint device.

Further, the connector device is provided with a connector plate, the connector plate is positioned at the butt joint position of the discharging device and the feeding device and is not positioned on the rotation axis of the connector device, the discharging device comprises a discharging transition plate, the feeding device comprises a feeding transition plate, the discharging transition plate and the feeding transition plate are respectively positioned on two opposite sides of the connector plate, and the discharging transition plate and the feeding transition plate are respectively lapped on the connector plate.

Further, the unloading device comprises an unloading frame body assembly, the unloading telescopic belt is arranged on the unloading frame body assembly, the feeding device comprises a feeding frame body assembly, the feeding telescopic belt is arranged on the feeding frame body assembly, the engineering tire small-angle joint device further comprises a connecting plate, and the unloading frame body assembly and the feeding frame body assembly are connected through the connecting plate.

Further, the engineering tire small-angle joint device further comprises an angle limit detection piece, wherein the angle limit detection piece is connected with the joint device and can detect the limit angle of rotation of the joint device.

Further, the engineering tire small-angle joint equipment further comprises a process angle detection piece, wherein the process angle detection piece is connected with the joint device and can detect the rotation angle of the joint device in real time.

Further, the engineering tire small-angle joint equipment further comprises a ranging detection piece, wherein the ranging detection piece is arranged on the side face of the feeding device and can detect the relative position between the feeding device and the joint device.

Further, the feeding driving device includes: a feed drive; the main driving shaft is in driving connection with the feeding driving piece; the transmission lead screws are in driving connection with the main driving shaft, and are arranged along the conveying direction perpendicular to the feeding device; the nuts are in threaded fit with the transmission screw rods, the nuts are connected with the feeding frame body assembly of the feeding device, and the transmission screw rods drive the discharging device to move through the nuts when driven by the feeding driving piece and the main driving shaft to rotate.

Further, all the driving screws comprise a first driving screw and a second driving screw, the feeding device is provided with a central axis passing through the rotation axis of the joint device, and the first driving screw and the second driving screw are respectively positioned at two sides of the central axis.

Further, the plurality of first transmission screw rods are provided, and the screw pitches among the first transmission screw rods are different, so that when the main driving shaft rotates, the displacement of the first transmission screw rods for driving the corresponding matched nuts to move is different; and/or the plurality of second transmission screw rods are provided, and the screw pitches among the second transmission screw rods are different, so that when the main driving shaft rotates, the displacement of the corresponding matched nut driven by the second transmission screw rods is different.

Further, the first transmission screw and the second transmission screw are symmetrically arranged on two sides of the central axis, and the rotation directions of the first transmission screw and the second transmission screw which are symmetrically arranged are opposite and the screw pitches are the same.

Further, the feeding driving device further comprises a plurality of sprocket transmission assemblies, the main driving shaft is respectively in driving connection with each transmission screw rod through each sprocket transmission assembly, and each sprocket transmission assembly is respectively in driving connection with different positions on the main driving shaft.

Further, the sprocket transmission assembly comprises a speed-increasing sprocket set, the feeding device is provided with a central axis passing through the rotation axis of the joint device, and all transmission lead screws, the distance between the transmission lead screws and the central axis exceeds a preset size, are in driving connection with the main driving shaft through the speed-increasing sprocket set.

By adopting the technical scheme, the joint driving device and the feeding driving device are arranged, wherein the joint driving device is matched with the joint device and can drive the joint device to rotate, so that the angle of an included angle formed between the joint device and the discharging device and between the joint device and the feeding device is changed, the splicing angle is changed, and the splicing of various angles is realized. The feeding driving device is matched with the feeding device and can drive the feeding device to move, so that the feeding device can correspondingly adjust the position according to the rotation condition of the joint device, and the feeding device is matched with the joint device. Meanwhile, the feeding device is in butt joint with the discharging device, so that when the connector device rotates, the feeding device can drive the discharging device to move together when driven by the feeding driving device, and the feeding device and the discharging device are matched with the connector device to rotate. The arrangement mode enables the movement of the joint device and the movement of the feeding device and the discharging device not to be limited any more, even if the joint device rotates to a smaller angle, the feeding device and the discharging device can also move to corresponding positions under the drive of the feeding driving device, so that the joint device is matched with the joint device, the relative positions of feeding, discharging and the joint when the angle is switched are ensured, the joint device can rotate to a smaller angle, the process requirement of a engineering tire for a belt layer smaller than 15 degrees is met, the requirement of a customer for the engineering tire belt layer is met, the manufacturing process requirement of the engineering tire belt layer is met, the joint efficiency is greatly improved, and the degree of automation of the engineering tire small-angle cutting machine is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 shows a top view of the engineering tire small angle joint apparatus of the present utility model;

FIG. 2 shows a cross-sectional view of the splice plate of FIG. 1;

FIG. 3 shows a cross-sectional view of the web of FIG. 1;

fig. 4 shows a schematic structural view of the feeding driving device of fig. 1.

Wherein the above figures include the following reference numerals:

10. a discharging device; 11. a discharging transition plate; 12. a discharge frame assembly; 20. a feeding device; 21. a feeding transition plate; 22. a feeding frame assembly; 30. a joint device; 40. a joint driving device; 51. a feed drive; 52. a main drive shaft; 53. a transmission screw; 54. a nut; 55. a sprocket drive assembly; 551. a speed-increasing chain wheel group; 56. tensioning the chain wheel; 60. a joint plate; 70. a connecting plate; 80. an angle limit detecting member; 90. a process angle detecting member; 100. a ranging detection member.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present utility model, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present utility model.

The utility model provides engineering tire small-angle joint equipment, which aims to solve the problem that a small-angle engineering tire joint device in the prior art cannot finish a belt joint smaller than 15 degrees.

The small-angle joint equipment for the engineering tire as shown in fig. 1 to 4 comprises a discharging device 10, a feeding device 20, a joint device 30, a joint driving device 40 and a feeding driving device, wherein the discharging device 10 is provided with a discharging telescopic belt for conveying curtain cloth strips; the feeding device 20 is in butt joint with the discharging device 10, and the discharging device 10 is provided with a feeding telescopic belt for conveying curtain cloth strips; the joint device 30 is positioned at the joint of the discharging device 10 and the feeding device 20 and is in lap joint with the discharging device 10 and the feeding device 20, and the discharging device 10 and the feeding device 20 convey the curtain strips to the joint device 30 for splicing; the joint device 30 can be rotatably arranged, the rotation axis of the joint device 30 is positioned at the joint position of the discharging device 10 and the feeding device 20, and the joint driving device 40 is in driving connection with the joint device 30 and drives the joint device 30 to rotate; the feeding driving device is in driving connection with the feeding device 20, and when the joint device 30 rotates, the feeding driving device drives the feeding device 20 to move along the conveying direction, and the feeding device 20 drives the discharging device 10 to move together so as to adapt to the angle adjustment of the joint device 30.

In this embodiment, by providing the joint driving device 40 and the feeding driving device, the joint driving device 40 is matched with the joint device 30, so that the joint device 30 can be driven to rotate, and the angle of the included angle formed between the joint device 30 and the discharging device 10 and the feeding device 20 is changed, so that the splicing angle is changed, and the splicing of various angles is realized. The feeding driving device is matched with the feeding device 20, and can drive the feeding device 20 to move, so that the feeding device 20 correspondingly adjusts the position according to the rotation condition of the joint device 30, and the feeding device 20 is matched with the joint device 30, and the feeding device 20 is driven by the feeding driving device instead of the joint device 30 in the process, so that the joint device 30 can move to a position smaller than 15 degrees under the drive of the joint driving device 40, and the processes of splicing belt curtain strips smaller than 15 degrees and the like can be realized. Meanwhile, the feeding device 20 is also in butt joint with the discharging device 10, so that when the connector device 30 rotates, the feeding device 20 can drive the discharging device 10 to move together when driven by the feeding driving device, and the feeding device 20 and the discharging device 10 are matched with the connector device 30 to rotate. The above arrangement mode makes the movement of the joint device 30 and the movement of the feeding device 20 and the discharging device 10 not limited any more, even if the joint device 30 rotates to a smaller angle, the feeding device 20 and the discharging device 10 can also move to corresponding positions under the drive of the feeding driving device, so as to adapt to the joint device 30, ensure the relative positions of feeding, discharging and joints when the angle is changed, ensure the joint device 30 to rotate to a smaller angle, meet the process requirement of engineering tires on the belted layer smaller than 15 degrees, meet the requirement of customers on the belted layer of the engineering tires, meet the manufacturing process requirement of the belted layer of the engineering tires, greatly improve the joint efficiency, and improve the degree of automation of the engineering tire small-angle cutting machine.

As shown in fig. 2, in the present embodiment, the joint device 30 has the joint plate 60, and the joint plate 60 is located at the junction of the discharge device 10 and the feeding device 20 and is not located at the rotation axis of the joint device 30, so that when the joint device 30 rotates about the rotation axis, the joint plate 60 moves accordingly. Meanwhile, the discharging device 10 comprises a discharging transition plate 11, the feeding device 20 comprises a feeding transition plate 21, the discharging transition plate 11 and the feeding transition plate 21 are respectively positioned on two opposite sides of the joint plate 60, and the discharging transition plate 11 and the feeding transition plate 21 are respectively lapped on the joint plate 60. In this way, while the joint device 30 rotates, the feeding driving device drives the feeding device 20 and the discharging device 10 to act, so that the feeding transition plate 21 and the discharging transition plate 11 can keep being lapped on the joint plate 60 along with the movement of the joint plate 60, thereby ensuring that the splicing process can be smoothly carried out. In actual use, parameters such as the movement speed among the feeding transition plate 21, the discharging transition plate 11 and the joint plate 60 can be adjusted, so that the feeding transition plate 21, the discharging transition plate 11 and the joint plate 60 can be always in lap joint when the joint device 30 rotates.

As shown in fig. 3, in the present embodiment, the structures of both the discharging device 10 and the feeding device 20 are substantially the same, specifically, the discharging device 10 includes a discharging frame assembly 12, a discharging telescopic belt is provided on the discharging frame assembly 12, and likewise, the feeding device 20 includes a feeding frame assembly 22, a feeding telescopic belt is provided on the feeding frame assembly 22, and the discharging frame assembly 12 and the discharging telescopic belt, and the feeding frame assembly 22 and the feeding telescopic belt may be provided in plurality and arranged in a direction perpendicular to the belt conveying direction, so that, when the joint device 30 rotates, the discharging frame assembly 12 and the discharging telescopic belt at different positions, and the feeding frame assembly 22 and the feeding telescopic belt at different positions can be moved correspondingly with the moving distances of the different positions of the joint device 30, and the moving speed of each feeding telescopic belt and the feeding telescopic belt is matched with the joint speed through calculation, thereby realizing the moving fit between the joint device 30, the feeding device 20 and the discharging device 10.

Since the discharging device 10 of the present embodiment is driven by the feeding device 20 to move, the engineering tire small-angle joint apparatus of the present embodiment further includes a connecting plate 70, the discharging frame assembly 12 and the feeding frame assembly 22 are connected by the connecting plate 70, and the discharging frame assembly 12, the feeding frame assembly 22 and the connecting plate 70 adopt a one-to-one correspondence relationship. Thus, when the feeding frame assembly 22 is driven by the feeding driving device to move, the corresponding connecting plate 70 drives the corresponding discharging frame assembly 12 to move, so that the synchronous movement of the discharging device 10 and the feeding device 20 is realized, and the synchronous movement of the discharging device and the feeding device is matched with the rotation of the joint device 30. Of course, other matching modes can be adopted to realize synchronous movement.

As shown in fig. 1, in this embodiment, the engineering tire small angle joint apparatus further includes an angle limit detecting element 80, where the angle limit detecting element 80 is connected to the joint device 30 and is capable of detecting a limit angle of rotation of the joint device 30, and when the joint device 30 rotates to a limit position, the joint device 30 is timely prompted and can be controlled to stop, so that the situation that the joint device 30 rotates too far is avoided, and use safety is ensured.

Similarly, the engineering tire small-angle joint device further comprises a process angle detection piece 90, wherein the process angle detection piece 90 is connected with the joint device 30 and can detect the rotation angle of the joint device 30 in real time, so that the angle of the joint device 30 in the rotation process is detected, and the rotation angle of the joint device 30 is ensured to be accurate and controllable.

The engineering tire small angle joint apparatus of the present embodiment further includes a ranging detecting member 100, and the ranging detecting member 100 is disposed at a side of the feeding device 20 and is capable of detecting a relative position between the feeding device 20 and the joint device 30. The distance measurement detecting member 100 and the process angle detecting member 90 are both used for detecting the rotation angle of the joint device 30, and the coordination of the distance measurement detecting member 100 and the process angle detecting member can perform multi-azimuth and multi-angle verification, so that the joint angle is further ensured to be consistent with the actual angle on the encoder arranged at the rotation axis of the joint device 30, and the relative position error of the feeding telescopic belt and the joint device 30 is detected within +/-2 mm. The specific types of components of the above-described angle limit detecting member 80, the process angle detecting member 90, the distance measuring detecting member 100, etc. may be selected as desired, for example, using a sensor, etc.

As shown in fig. 4, in the present embodiment, the feeding driving device includes a feeding driving member 51, a main driving shaft 52, a plurality of transmission screws 53, and a plurality of nuts 54. The feeding driving member 51 may adopt a motor or other parts, the main driving shaft 52 is in driving connection with the feeding driving member 51, the transmission lead screws 53 are in driving connection with the main driving shaft 52, and each transmission lead screw 53 is in driving connection with the same main driving shaft 52, so that when the feeding driving member 51 drives the main driving shaft 52 to rotate, the main driving shaft 52 can simultaneously drive each transmission lead screw 53 to rotate. Of course, a plurality of main drive shafts 52 may be provided, and each of the drive screws 53 may be engaged with one of the main drive shafts 52, or the like. In order to cooperate with each feeding frame assembly 22 of the feeding device 20, the driving screws 53 of the present embodiment are also arranged along a direction perpendicular to the conveying direction of the feeding device 20, that is, the arrangement manner of the feeding frame assemblies 22 and the driving screws 53 is consistent, and each feeding frame assembly 22 is preferably disposed corresponding to one driving screw 53, so as to ensure that each feeding frame assembly 22 can be driven. The nut 54 is threadedly engaged with the drive screw 53, which forms a screw structure, and the nut 54 is coupled to the feeding housing assembly 22 of the feeding device 20 such that a driving relationship is established between the nut 54 and the drive screw 53. Since the drive screw 53 is plural, since the nuts 54 are also provided plural, and are preferably provided in one-to-one correspondence with the drive screw 53. Thus, when the feeding driving member 51 drives the main driving shaft 52 to rotate, the main driving shaft 52 drives all the driving screws 53 to rotate together, each driving screw 53 drives the corresponding nut 54 to move transversely, and the nut 54 can drive the corresponding feeding frame assembly 22 to move, so that the feeding frame assembly 22 and the discharging frame assembly 12 move together, and the effect of adjusting following the joint device 30 is achieved.

In the present embodiment, all the drive screws 53 include a first drive screw and a second drive screw, and the feeding device 20 has a central axis passing through the rotation axis of the joint device 30, the first drive screw and the second drive screw being located on both sides of the central axis, respectively. Thus, the feeding frame body assemblies 22 on two sides of the central axis of the feeding device 20 are matched with the transmission screw rods 53, so that the transmission stability is ensured, and the situations of unsmooth, even jamming and the like caused by single-side transmission are avoided. Of course, the corresponding coordination relationship among the feeding frame body assembly 22, the transmission screw 53 and the nuts 54 can be adjusted according to the requirement, the transmission screw 53 can be arranged on one side of the central axis, a plurality of nuts 54 can be arranged on the transmission screw 53, and the feeding frame body assembly 22 is driven to move through the plurality of nuts 54.

In order to further ensure the transmission stability, the first transmission screw and the second transmission screw in this embodiment are multiple and are arranged along the direction perpendicular to the conveying direction.

Due to the characteristic that the farther from the rotation axis the movement path is longer and the rotation directions of the portions located at both sides of the rotation axis are opposite when the joint device 30 is rotated, the movement directions of the feeding frame assemblies 22 located at both sides of the central axis on the feeding device 20 are different, more specifically opposite, while the movement directions are the same for the driving screws 53 displaced at the same side of the central axis but the movement distances are different. Therefore, based on the above rotation rule, on one hand, the thread pitches between the first driving screws are set to be different, and meanwhile, the thread pitches between the second driving screws are set to be different, so that when the joint device 30 rotates, the main driving shaft 52 can drive all the driving screws 53 to move together, and due to the different thread pitches, the first driving screws with different thread pitches and the second driving screws with different thread pitches can drive the corresponding matched nuts 54 to move with different displacement, thereby adapting to the rotation rule of the joint device 30 and realizing the rotation matching with the joint device 30. On the other hand, in this embodiment, the threads between the first driving screw and the second driving screw are oppositely rotated, so that when the joint device 30 rotates, the main driving shaft 52 drives all the driving screws 53 to rotate in one direction, and the first driving screw and the second driving screw can drive the corresponding nuts 54 to rotate in two opposite directions, so as to drive the feeding frame assemblies 22 on two sides of the central axis to move in two different directions respectively, and realize the rotation fit with the joint device 30. Since the discharging device 10 and the feeding device 20 are synchronously operated, the movement of the discharging device 10 is not described again. The arrangement of the two aspects enables the movement of both the feeding device 20 and the discharging device 10 to be adapted to the joint device 30, ensuring the reliability and stability of the adaptation and thus the reliability of the belt splice. Of course, the specific setting modes, parameters and the like of the first transmission screw and the second transmission screw such as the screw pitch, the screw direction and the like can be correspondingly adjusted according to actual conditions.

Preferably, in this embodiment, the first driving screws and the second driving screws are symmetrically disposed on two sides of the central axis, that is, each first driving screw has a corresponding second driving screw on the other side of the central axis, and the distance between the first driving screw and the central axis is equal, conversely, each second driving screw has a corresponding first driving screw on the other side of the central axis, and the distance between the second driving screw and the central axis is also equal, so that the suitability between the feeding device 20 and the joint device 30 is further ensured. Because the first transmission screw rod and the second transmission screw rod are symmetrically and correspondingly arranged, the first transmission screw rod and the second transmission screw rod which are symmetrically arranged are opposite in rotation direction and identical in screw pitch.

Of course, the specific matching manner between the feeding device 20 and the feeding driving device is not limited to the above-mentioned arrangement manner in the present embodiment, and may be adjusted as required, as long as the motion of the feeding device 20 driven by the feeding driving device and the rotation of the joint device 30 can be ensured to be matched.

In this embodiment, the feeding driving device further includes a plurality of sprocket driving assemblies 55, and the sprocket driving assemblies 55 serve to drive the main driving shaft 52 and the driving screws 53, that is, the main driving shaft 52 is respectively in driving connection with each driving screw 53 through each sprocket driving assembly 55, so that an effect that one main driving shaft 52 can simultaneously drive all the driving screws 53 to rotate is achieved. And to ensure that each sprocket assembly 55 is capable of mating with the main drive shaft 52, this embodiment extends the main drive shaft 52 a substantial length and a distance along the direction of belt strip transport so that each sprocket assembly 55 can be drivingly connected to a different location on the main drive shaft 52 to achieve a uniform mating with the main drive shaft 52.

In this embodiment, considering that the pitch of the driving screw 53 far from the central axis may be limited, even if the maximum pitch is set, the movement distance requirement of the nut 54 cannot be met or the requirement of rapid movement cannot be met, so the sprocket assembly 55 of this embodiment includes the speed increasing sprocket set 551, the speed increasing sprocket set 551 can perform the function of speed increasing transmission, even if the rotation of the main driving shaft 52 is transmitted to the driving screw 53 through the speed increasing sprocket set 551, the rotation speed of the driving screw 53 will be higher than that of the inner driving screw 53, so that the movement distance and movement speed of the nut 54 can be greater than those of the inner nut 54 although the pitch of the driving screw 53 is not as great, and thus the pitch of the driving screw 53 can meet the process requirement under the condition of meeting the displacement and speed requirement of the nut 54. The inner side here means the side close to the central axis.

Since the drive screws 53 which are generally far from the central axis need to be increased in speed by a sprocket, the drive screws 53 which are more than a predetermined distance from the central axis among all the drive screws 53 are connected with the main drive shaft 52 by the speed increasing sprocket set 551 to achieve speed increasing. The other driving screw 53 does not need to be increased in speed by a sprocket, and can be provided with a proper pitch. The above-mentioned arrangement of the speed-increasing sprocket set 551 is applicable to both the first drive screw and the second drive screw.

The present embodiment is also provided with a tension sprocket 56, through which the chain of the sprocket drive assembly 55 can be carried out, thereby ensuring that transmission errors are not caused by loosening of the chain.

Preferably, in order to avoid the clamping stagnation of the movement of the nut 54 caused by the deformation of the driving screw 53, a floating nut is adopted in the embodiment, so that the transmission efficiency of the screw of the nut 54 is ensured, considering that the driving screw 53 is longer due to the small angle of the engineering tire.

Unlike the above-described complicated arrangement of the feeding driving device, the joint driving device 40 may be motor-driven, by being provided with an arc-shaped or circular guide rail such that the joint device 30 can be rotated along the guide rail by the joint driving device 40.

It should be noted that, in the above embodiments, a plurality refers to at least two.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

1. the problem that a small-angle engineering tire joint device in the prior art cannot finish a belt joint smaller than 15 degrees is solved;

2. the joint device can rotate to a smaller angle, so that the process requirement of the engineering tire on the belted layer smaller than 15 degrees is met, and the requirement of a customer on the belted layer of the engineering tire is met;

3. the manufacturing process requirements of the engineering tire belt ply are met, the joint efficiency is greatly improved, and the degree of automation of the engineering tire small-angle cutting machine is improved;

4. the multi-azimuth and multi-angle verification is carried out, so that the rotation accuracy of the joint device and the matching accuracy with the feeding device are further ensured;

5. the cooperation between the feeding driving device and the feeding device enables the movement of the feeding device and the unloading device to be matched with the connector device, so that the reliability and stability of the matching are ensured, and the splicing reliability of the belted layer is further ensured.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (12)

1. A low angle joint apparatus for an engineering tire, comprising:

-a discharge device (10), the discharge device (10) having a discharge telescopic belt for conveying the shade strips;

a feeding device (20), wherein the feeding device (20) is in butt joint with the discharging device (10), and the discharging device (10) is provided with a feeding telescopic belt for conveying curtain cloth strips;

the joint device (30) is positioned at the joint of the discharging device (10) and the feeding device (20) and is in lap joint with the discharging device (10) and the feeding device (20), and the discharging device (10) and the feeding device (20) convey curtain strips to the joint device (30) for splicing;

the joint driving device (40) is rotatably arranged, the rotation axis of the joint device (30) is positioned at the joint of the discharging device (10) and the feeding device (20), and the joint driving device (40) is in driving connection with the joint device (30) and drives the joint device (30) to rotate;

the feeding driving device is in driving connection with the feeding device (20), and when the joint device (30) rotates, the feeding driving device drives the feeding device (20) to move along the conveying direction, and the feeding device (20) drives the discharging device (10) to move together so as to adapt to the angle adjustment of the joint device (30).

2. Engineering tire small angle joint apparatus according to claim 1, characterized in that the joint device (30) has a joint plate (60), the joint plate (60) is located at the joint of the discharge device (10) and the feeding device (20) and is not located at the rotation axis of the joint device (30), the discharge device (10) comprises a discharge transition plate (11), the feeding device (20) comprises a feeding transition plate (21), the discharge transition plate (11) and the feeding transition plate (21) are located on opposite sides of the joint plate (60), respectively, and the discharge transition plate (11) and the feeding transition plate (21) are both lapped on the joint plate (60).

3. Engineering tire small angle joint device according to claim 1, characterized in that the discharge device (10) comprises a discharge frame assembly (12), the discharge telescopic belt is arranged on the discharge frame assembly (12), the feeding device (20) comprises a feeding frame assembly (22), the feeding telescopic belt is arranged on the feeding frame assembly (22), the engineering tire small angle joint device further comprises a connecting plate (70), and the discharge frame assembly (12) and the feeding frame assembly (22) are connected through the connecting plate (70).

4. A low angle joint apparatus for a construction tyre according to claim 1, further comprising an angle limit detection member (80), said angle limit detection member (80) being connected to said joint means (30) and being capable of detecting a limit angle of rotation of said joint means (30).

5. Engineering tire small angle joint apparatus according to claim 1, characterized in that it further comprises a process angle detection member (90), said process angle detection member (90) being connected to the joint device (30) and being capable of detecting the rotation angle of the joint device (30) in real time.

6. Engineering tire small angle joint apparatus according to claim 1, characterized in that it further comprises a distance measuring detection member (100), said distance measuring detection member (100) being arranged at the side of the feeding device (20) and being capable of detecting the relative position between the feeding device (20) and the joint device (30).

7. A low angle joint apparatus according to any one of claims 1 to 6, wherein the feed drive means comprises:

a feeding drive (51);

-a main drive shaft (52), said main drive shaft (52) being in driving connection with said feeding drive (51);

a plurality of drive screws (53), the drive screws (53) being in driving connection with the main drive shaft (52), each drive screw (53) being arranged in a direction perpendicular to the conveying direction of the feeding device (20);

the screw nuts (54) are in threaded fit with the transmission screw rods (53), the screw nuts (54) are connected with the feeding frame body assembly (22) of the feeding device (20), and the transmission screw rods (53) drive the discharging device (10) to move through the screw nuts (54) when driven by the feeding driving piece (51) and the main driving shaft (52) to rotate.

8. Engineering tire small angle joint arrangement according to claim 7, characterized in that all the drive screws (53) comprise a first drive screw and a second drive screw, the feeding device (20) having a central axis passing through the axis of rotation of the joint device (30), the first drive screw and the second drive screw being located on both sides of the central axis, respectively.

9. Engineering tire small angle joint apparatus according to claim 8, characterized in that,

the first transmission screw rods are multiple, the screw pitches among the first transmission screw rods are different, so that when the main driving shaft (52) rotates, the displacement of the nuts (54) which are correspondingly matched and driven by the first transmission screw rods to move is different; and/or

The second transmission screw rods are multiple, the screw pitches among the second transmission screw rods are different, so that when the main driving shaft (52) rotates, the displacement of the corresponding nut (54) driven by the second transmission screw rods is different.

10. The engineering tire small angle joint apparatus according to claim 8, wherein the first and second drive screws are symmetrically disposed on both sides of the central axis, and the first and second drive screws are symmetrically disposed with opposite rotation directions and the same pitch.

11. A tyre small angle joint apparatus according to claim 8, characterized in that the feed drive means further comprises a plurality of sprocket drive assemblies (55), the main drive shaft (52) being in driving connection with each of the drive screw (53) by means of each of the sprocket drive assemblies (55), and each of the sprocket drive assemblies (55) being in driving connection with a different position on the main drive shaft (52).

12. Engineering tire small angle joint apparatus according to claim 11, characterized in that the sprocket drive assembly (55) comprises a speed increasing sprocket set (551), wherein all of the drive screws (53) are in driving connection with the main drive shaft (52) via the speed increasing sprocket set (551) with a distance from the central axis exceeding a predetermined size.