Automatic tread feeding system

Abstract

The application discloses a kind of tread automatic feeding system, mainly including the tread guide device for guiding the tread in trolley material roll, tread fixed-length cutting conveyor, tread storage device, tread length measuring feeding device, tread pickup adsorption device, belt drum;The tread fixed-length cutting conveyor includes: feeding centering device, rear conveyor, front conveyor, cutting device, fixed-length detection switch, first material detection switch, and the feeding centering device is used for automatically centering when tread feeding.The tread feeding system of the application automatically judges the tread storage condition of each station, automatically determines the placement position of the picked tread according to the actual demand and the tread of which position is picked when feeding, can self-adaptively meet the demand of current working condition whether in car change or not, frequent change of material does not stop, ensures the continuity of equipment, and the degree of automation is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic tread feeding system, in particular to an automatic tread feeding system. BACKGROUND

[0002] At present, there are three forms of tread feeding tooling: louvered car, grating car and trolley winding. Among them, the louvered car and the grating car store a large number of treads, which can reduce the number of tooling replacement during the normal production process of the forming machine and improve the comprehensive utilization rate of the equipment. However, the treads in these toolings are cut in advance in the previous process, and it takes a long time to transfer to the forming machine for use, which will affect the quality of the final formed tire blank due to the shrinkage of the tread size and the reduction of the cutting edge adhesion. The trolley winding feeding form cuts the tread at the position of the forming machine, which can better ensure the quality of the tread in use. However, the trolley winding stores less tread, which needs to be frequently replaced, and the replacement distance is far and the time is long, which greatly affects the efficiency of the equipment. Therefore, an automatic tread feeding system that takes into account the quality of the tread and the efficiency of the equipment is needed. SUMMARY

[0003] The purpose of the present application is to solve the above technical problems and provide an automatic tread feeding system.

[0004] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0005] An automatic tread feeding system, comprising a tread guide-out device for guiding out the treads in the trolley roll, a tread fixed-length cutting and conveying device for cutting and conveying the treads guided out by the tread guide-out device, a tread storage device for storing the treads cut by the tread fixed-length cutting and conveying device, a tread length measuring and feeding device for measuring the length of the treads, a tread picking and adsorbing device for picking the cut treads, and a belt drum serving as a tread fitting base, wherein the tread guide-out device is located at the rear side of the tread fixed-length cutting and conveying device, the tread picking and adsorbing device is located at the upper side of the tread fixed-length cutting and conveying device, the tread fixed-length cutting and conveying device, the tread storage device and the tread length measuring and feeding device are located in the same plane.

[0006] The tread fixed-length cutting and conveying device comprises a feeding centering device, a rear conveying device, a front conveying device, a cutting device, a fixed-length detection switch and a first material detection switch. The feeding centering device is used for automatic centering during tread feeding, and is driven by a cylinder to drive the synchronous belt to drive the synchronous clamping on both sides. The rear conveying device is provided with a clutch on the driving shaft. The front conveying device is provided with a servo motor on the driving shaft. The fixed-length detection switch is used for detecting the material head. The cutting device is used for cutting the treads. The first material detection switch is used for detecting whether there is a tread on the front conveying device.

[0007] Preferably, the tread storage device is composed of a tread placing platform for placing the tread and a second material detection switch for detecting whether there is tread on the tread placing platform.

[0008] Preferably, the tread length measuring and feeding device comprises a tread conveying roller bed for conveying the tread before and during the tread fitting, a whole centering device for whole centering after the tread is placed on the roller bed, a tread length measuring device for measuring the length of the tread again, a tread fitting compression roller for compressing the tread on the belt drum when fitting the tread, and a first material detection switch for detecting whether there is tread on the tread conveying roller bed.

[0009] Preferably, the tread pickup and adsorption device comprises a horizontal moving device driven by a motor gear and rack structure to move the vacuum adsorption device horizontally, a lifting device driven by a motor gear and rack structure to move the vacuum adsorption device vertically, and a plurality of vacuum sponges installed on the vacuum adsorption device for adsorbing the tread.

[0010] Preferably, the servo motor and the clutch are connected by a synchronous belt, and the combination of the servo motor and the clutch can realize separate conveying of the front conveying device, separate conveying of the rear conveying device, and simultaneous conveying of the front conveying device and the rear conveying device.

[0011] Preferably, the vacuum sponge has the function of adaptive deformation according to the surface profile of the adsorbed object.

[0012] Preferably, the positioning of the horizontal moving device and the lifting device is realized by the detection of the fourth material detection switch installed on the frame.

[0013] Preferably, the belt drum is used as the tread fitting base, and the whole tread after fitting is in the shape of a ring.

[0014] Preferably, the tread length cutting and conveying device further comprises a feeding compression roller for compressing the tread on the rear conveying device during feeding to prevent the tread from sliding down, the feeding compression roller comprises a fixed support, a compression roller swing frame movably installed on the fixed support, and a first air cylinder movably installed between the fixed support and the compression roller swing frame, and the feeding compression roller adopts the form of multiple self-weight roller pieces to automatically adapt to the uneven profile above the tread, preventing the deformation of the tread caused by a single fixed shape compression roller.

[0015] Preferably, the tire tread fixed-length cutting conveying device further comprises a cutting pressure rod group for pressing the tire tread to prevent the tire tread from moving when the cutting device cuts the tire tread, the cutting pressure rod group comprises a mounting bracket, a second air cylinder is mounted on the mounting bracket, a moving frame is mounted on the output end of the second air cylinder, a guide rod penetrating through the mounting bracket and sliding is fixed on the upper end of the moving frame, an extension rod is mounted on the moving frame, and a spring is sleeved on the outside of the extension rod, the extension rod has different extension lengths when pressed on the tire tread to adapt to the profile of the tire tread.

[0016] The beneficial effects of the present application are:

[0017] The tire tread feeding system of the present application automatically judges the tire tread storage conditions of each station, automatically determines the placement position of the picked tire tread and the position of the tire tread to be picked during feeding according to the actual demand, and can adaptively meet the demand of the current working condition whether during tire changing or not, so that frequent feeding change does not stop the machine, ensures the continuity of the equipment, and has high automation degree. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure diagram of a tire tread automatic feeding system according to embodiment 1 is provided.

[0019] Figure 2 A structure diagram of a tire tread length measuring and feeding device in a tire tread automatic feeding system according to embodiment 1 is provided.

[0020] Figure 3 A structure diagram of a tire tread fixed-length cutting conveying device in a tire tread automatic feeding system according to embodiment 1 is provided.

[0021] Figure 4 A structure diagram of a tire tread picking and adsorbing device in a tire tread automatic feeding system according to embodiment 1 is provided.

[0022] Figure 5 A structure diagram of a tire tread storage device in a tire tread automatic feeding system according to embodiment 1 is provided.

[0023] Figure 6 A structure diagram of a feeding pressure roller in a tire tread automatic feeding system according to embodiment 2 is provided.

[0024] Figure 7 A structure diagram of a cutting pressure rod group in a tire tread automatic feeding system according to embodiment 3 is provided.

[0025] Fig. 1: 1 tire tread lead-out device, 2 tire tread fixed-length cutting conveyor device, 3 tire tread storage device, 4 tire tread length measuring feeding device, 5 tire tread pickup adsorption device, 6 belt drum, 7 feeding centering device, 8 rear conveyor device, 9 front conveyor device, 10 cutting device, 11 feeding compression roller, 12 cutting compression rod group, 13 fixed-length detection switch, 14 first material detection switch, 15 tire tread placement platform, 16 second material detection switch, 17 tire tread conveyor roller bed, 18 overall centering device, 19 tire tread length measuring device, 20 tire tread lamination compression roller, 21 third material detection switch, 22 horizontal movement device, 23 lifting device, 24 vacuum adsorption device, 25 fourth material detection switch, 26 fixed support, 27 compression roller swing frame, 28 first air cylinder, 29 spring, 30 mounting support, 31 moving frame, 32 second air cylinder, 33 guide rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0027] Embodiment 1

[0028] Reference Figures 1-5 An automatic tire tread feeding system, comprising a tire tread lead-out device 1 for leading out the tire tread in the trolley material roll, a tire tread fixed-length cutting conveyor device 2 for cutting and conveying the tire tread led out by the tire tread lead-out device 1, a tire tread storage device 3 for storing the tire tread cut by the tire tread fixed-length cutting conveyor device 2, a tire tread length measuring feeding device 4 for measuring the length of the tire tread, a tire tread pickup adsorption device 5 for picking up the cut tire tread, and a belt drum 6 serving as a tire tread lamination base, wherein the tire tread lead-out device 1 is located at the rear side of the tire tread fixed-length cutting conveyor device 2, the tire tread pickup adsorption device 5 is located at the upper side of the tire tread fixed-length cutting conveyor device 2, the tire tread storage device 3, and the tire tread length measuring feeding device 4, and the tire tread fixed-length cutting conveyor device 2, the tire tread storage device 3, and the tire tread length measuring feeding device 4 are located in the same plane, wherein the belt drum 6 serves as a tire tread lamination base, and the whole after tire lamination is in the shape of a circular ring.

[0029] The tire tread storage device 3 is composed of a tire tread placement platform 15 and a second material detection switch 16, the tire tread placement platform 15 is used for placing the tire tread, and the second material detection switch 16 is used for detecting whether there is tire tread on the tire tread placement platform 15.

[0030] The tread length measuring feeding device 4 comprises a tread conveying roller bed 17, an overall centering device 18, a tread length measuring device 19, a tread fitting compression roller 20, and a third material detection switch 21. The tread conveying roller bed 17 is used for conveying the tread before and during the tread fitting, and is driven by a servo motor. The overall centering device 18 is used for overall centering after the tread is placed on the roller bed. The tread length measuring device 19 is used for measuring the length of the tread again. The tread fitting compression roller 20 is used for compressing the tread on the belt drum 6 when the tread is fitted.

[0031] The tread pickup and adsorption device 5 comprises a horizontal moving device 22, a lifting device 23, a vacuum adsorption device 24, and a fourth material detection switch 25. The horizontal moving device 22 is driven by a motor gear and rack structure to drive the vacuum adsorption device 24 to move horizontally. The lifting device 23 is driven by a motor gear and rack structure to drive the vacuum adsorption device 24 to move up and down. The positioning of the horizontal moving device 22 and the lifting device 23 is detected by the fourth material detection switch 25 installed on the frame. The vacuum adsorption device 24 is installed with multiple groups of vacuum sponges for adsorbing the tread. The vacuum sponge has the function of adaptive deformation of the surface profile of the adsorbed object. The upper surface of the tread has a concave-convex shape, and the vacuum sponge can ensure more reliable adsorption and has high reliability.

[0032] The servo motor and the clutch are connected by a synchronous belt. The combination of the servo motor and the clutch can realize the separate conveying of the front conveying device 9, the simultaneous conveying of the rear conveying device 8 and the front conveying device 9.

[0033] The tread length cutting and conveying device 2 comprises a feeding centering device 7, a rear conveying device 8, a front conveying device 9, a cutting device 10, a length detection switch 13, and a first material detection switch 14. The feeding centering device 7 is used for automatic centering when the tread is fed, and is driven by a cylinder to drive the synchronous belts on both sides to clamp synchronously. The rear conveying device 8 is installed with a clutch on the driving shaft. The front conveying device 9 is installed with a servo motor on the driving shaft. The length detection switch 13 is used for detecting the material head of the tread. The cutting device 10 is used for cutting the tread, and is driven by a motor to move horizontally. The first material detection switch 14 is used for detecting whether there is tread on the front conveying device 9.

[0034] Example 2

[0035] Reference Figure 6The embodiment is different from embodiment 1, and the tire tread length cutting conveying device 2 in the embodiment further comprises a feeding pressure roller 11, which is used to press the tire tread on the rear conveying device 8 during feeding to prevent the tire tread from sliding down. The feeding pressure roller 11 comprises a fixed support 26, a pressure roller swing frame 27 movably installed on the fixed support 26, and a first air cylinder 28 movably installed between the fixed support 26 and the pressure roller swing frame 27. The feeding pressure roller 11 adopts a form of multiple self-weight roller pieces to automatically adapt to the uneven contour above the tire tread, preventing the tire tread from being deformed by a single fixed shape pressure roller.

[0036] Embodiment 3

[0037] Referring to Figure 7 The embodiment is different from embodiments 1 and 2, and the tire tread length cutting conveying device 2 in the embodiment further comprises a cutting pressure rod group 12, which is used to press the tire tread to prevent the tire tread from moving when the cutting device 10 cuts the tire tread. The cutting pressure rod group 12 comprises a mounting support 30, a second air cylinder 32 installed on the mounting support 30, a moving frame 31 installed at the output end of the second air cylinder 32, a guide rod 33 fixed on the upper end of the moving frame 31 and sliding through the mounting support 30, an extension rod installed on the moving frame 31, and a spring 29 sleeved outside the extension rod. The extension rod has different extension lengths when pressed on the tire tread to adapt to the contour of the tire tread, so that each position is uniformly pressed to ensure better cutting effect.

[0038] When the automatic feeding system of the tread in this embodiment starts to work normally, the tread guide opening device 1 guides the tread in the material roll out, and after the height of the material storage pocket is controlled by a high-low sensor, the tread is centered and positioned by the feeding centering device 7. The feeding roller 11 presses the tread on the rear conveying device 8. The rear conveying device 8 and the front conveying device 9 act simultaneously to continue to convey the tread forward until the material head triggers the fixed-length detection switch 13, the servo motor starts to count, and when the distance between the material head and the cutting device 10 is the required length of the tread, it stops. The cutting pressure rod group 12 presses the tread, and the cutting device 10 is driven by the motor to move horizontally to cut the tread. After cutting, the front conveying device 9 conveys the tread forward alone, so that the tread on both sides of the cut position is separated to prevent adhesion, and at the same time, the cut tread is conveyed to the appropriate position for waiting. The vacuum suction device 24 is driven by the horizontal moving device 22 and the lifting device 23 to move above the front conveying device 9, and then moves downward until the vacuum sponge is pressed on the tread to reliably suck the tread, and then stops. Move upward to make the tread leave the front conveying device 9. Move above the tread conveying roller bed 17 by the driving of the horizontal moving device 22 and the lifting device 23, release the vacuum pressure to place the tread on the tread conveying roller bed 17. At this time, the tread pickup and suction device 5 can leave. Centered by the overall centering device 18, and then detected by the tread length measuring device 19, the difference between the actual length and the theoretical length is compared, the tread conveying roller bed 17 is driven by the cylinder to stretch forward above the belt drum 6, the tread pressing roller 20 presses the tread on the belt drum for lamination feeding, and at the same time, the actual length and the theoretical length of the tread are matched by controlling the conveying speed of the tread conveying roller bed 17 and the rotating speed of the belt drum 6, to ensure the alignment accuracy of the head and tail of the tread after lamination.

[0039] In the above working process, after the tread pickup and suction device 5 sucks the tread and leaves the front conveying device 9, the first material detection switch 14 detects that there is no tread on the front conveying device 9, and the tread guide opening device 1 and the tread fixed-length cutting and conveying device 2 continue to work in a cycle.

[0040] In the above working process, after the tread pickup and adsorption device 5 places the tread on the tread conveying roller bed 17, the third presence detection switch 21 detects the presence of the tread on the tread conveying roller bed 17, the tread pickup and adsorption device 5 continues to adsorb the tread from the front conveying device 9, moves to above the tread placing platform 15 under the driving of the transverse moving device 22 and the lifting device 23, releases the vacuum pressure to place the tread on the tread placing platform 15. The second presence detection switch 16 detects the presence of the tread on the tread placing platform 15, the tread pickup and adsorption device 5 continues to adsorb the tread from the front conveying device 9. The tread on the tread placing platform 15 is temporarily not moved before being changed. The tread pickup and adsorption device 5 continues to adsorb the tread from the front conveying device 9 and places the tread according to the signal of the third presence detection switch 21. The tread pickup and adsorption device 5 reciprocates between the front conveying device 9 and the tread conveying roller bed 17. When the tread guide opening device 1 is empty and the vehicle is changed, the front conveying device 9 no longer has the previous tread to supply and supplement, at this time, the front conveying device 9, the vacuum adsorption device 24 and the tread placing platform 15 have three treads in reserve, which are detected by the presence detection switches at each station to determine to pick and place the treads on the tread conveying roller bed 17 one by one.

[0041] When normally producing, the time for making one tire blank is about 180s, the time for changing the vehicle is about 480s, 180x3>480. According to the above working procedure, the changing process does not affect the normal working of the tread length measurement and supply device 4, and can ensure that the changing does not stop the machine. After the vehicle is changed, the above working procedure can be continued to circulate.

[0042] The above only describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent substitutions or changes to the technical solutions and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An automatic tread feeding system, characterized in that: The device includes a tread guide device (1) for exporting the tread from the trolley roll, a tread length cutting and conveying device (2) for cutting and conveying the tread after it is exported by the tread guide device (1), a tread storage device (3) for storing the tread after it is cut by the tread length cutting and conveying device (2), a tread length measuring and feeding device (4) for measuring the tread length, a tread picking and adsorption device (5) for picking up the cut tread, and a belt drum (6) used as the tread bonding substrate. The tread guide device (1) is located behind the tread length cutting and conveying device (2), and the tread picking and adsorption device (5) is located above the tread length cutting and conveying device (2), the tread storage device (3), and the tread length measuring and feeding device (4). The tread length cutting and conveying device (2), the tread storage device (3), and the tread length measuring and feeding device (4) are located on the same plane. The tire tread length cutting and conveying device (2) includes: a feeding and centering device (7), a rear conveying device (8), a front conveying device (9), a cutting device (10), a length detection switch (13), and a first material detection switch (14). The feeding and centering device (7) is used to automatically center the tire tread when it is fed into the system. It is driven by a cylinder and a synchronous belt to drive both sides to clamp synchronously. The rear conveying device (8) has a clutch installed on its drive shaft, and the front conveying device (9) has a servo motor installed on its drive shaft. The length detection switch (13) is used to detect the tire tread end. The cutting device (10) is used to cut the tire tread. The first material detection switch (14) is used to detect whether there is a tire tread on the front conveying device (9). The tread storage device (3) consists of a tread placement platform (15) and a second material detection switch (16). The tread placement platform (15) is used to place the tread, and the second material detection switch (16) is used to detect whether there is a tread on the tread placement platform (15). The tread length measuring and feeding device (4) includes: tread conveying roller bed (17), overall centering device (18), tread length measuring device (19), tread bonding pressure roller (20), and third material detection switch (21). The tread conveying roller bed (17) is used for conveying before and during the bonding process of the tread and is driven by a servo motor. The overall centering device (18) is used for overall centering after the tread is placed on the roller bed. The tread length measuring device (19) is used to measure the length of the tread again. The tread bonding pressure roller (20) is used to press the tread onto the belt drum (6) when bonding the tread. The tire tread pickup and adsorption device (5) includes: a lateral movement device (22), a lifting device (23), a vacuum adsorption device (24), and a fourth material detection switch (25). The lateral movement device (22) is driven by a motor gear rack structure, which drives the vacuum adsorption device (24) to move laterally. The lifting device (23) is driven by a motor gear rack structure, which drives the vacuum adsorption device (24) to move up and down. Multiple sets of vacuum sponges are installed on the vacuum adsorption device (24) for adsorbing the tire tread.

2. The automatic tread feeding system according to claim 1, characterized in that, The servo motor and clutch are connected by a synchronous belt. By controlling the combination of the servo motor and clutch, it is possible to achieve separate conveying by the front conveyor (9) and simultaneous conveying by the rear conveyor (8) and the front conveyor (9).

3. The automatic tread feeding system according to claim 2, characterized in that, The vacuum sponge has the function of adaptively deforming the contour shape of the adsorbed object surface.

4. The automatic tread feeding system according to claim 3, characterized in that, The positioning of the transverse device (22) and the lifting device (23) is achieved by detecting the fourth material detection switch (25) installed on the frame.

5. The automatic tread feeding system according to claim 1, characterized in that, The belt drum (6) is used as the tread bonding substrate, and the tread is ring-shaped after bonding.

6. The automatic tread feeding system according to claim 1, characterized in that, The tire tread fixed length cutting and conveying device (2) also includes a feeding pressure roller (11). The feeding pressure roller (11) is used to press the tire tread onto the rear conveying device (8) during feeding to prevent the tire tread from sliding down. The feeding pressure roller (11) includes a fixed bracket (26). A pressure roller swing frame (27) is movably installed on the fixed bracket (26). A first cylinder (28) is movably installed between the fixed bracket (26) and the pressure roller swing frame (27). The feeding pressure roller (11) adopts the form of multiple self-weight rollers, which can automatically adapt to the uneven contour above the tire tread to prevent the tire tread from being deformed by a single fixed shape pressure roller.

7. The automatic tread feeding system according to claim 1, characterized in that, The tread length cutting and conveying device (2) further includes a cutting pressure bar group (12). The cutting pressure bar group (12) is used to press the tread to prevent it from moving when the cutting device (10) cuts the tread. The cutting pressure bar group (12) includes a mounting bracket (30). A second cylinder (32) is mounted on the mounting bracket (30). A movable frame (31) is mounted on the output end of the second cylinder (32). A guide rod (33) that slides through the mounting bracket (30) is fixed on the upper end of the movable frame (31). A telescopic rod is mounted on the movable frame (31). A spring (29) is sleeved on the outside of the telescopic rod. When pressed on the tread, the telescopic rod extends to varying lengths to adapt to the tread profile.

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