CN116141721A - Automatic tire unloading, retreading, centering and conveying equipment for tire blank of tire building machine - Google Patents

Abstract

The utility model relates to the field of tire manufacturing, in particular to automatic tire unloading, tire retreading and centering conveying equipment for a tire molding machine tire blank, which comprises a tire unloading device, a guide channel, a tire retreading device and a centering conveying device, wherein the guide channel is arranged with an inlet towards a tire unloading station, the tire retreading device is connected with an outlet of the guide channel, and the centering conveying device is arranged at an output end of the tire retreading device; the tire unloading device comprises a lower clamping block and an upper clamping block which clamp a tire blank, and a clamping area is formed between the lower clamping block and the upper clamping block; a tire outlet is formed in one side of the clamping area, and a tire unloading mechanism is arranged on the side, opposite to the tire outlet, of the clamping area; the tire retreading device comprises a tire retreading seat and a stopping component, wherein the tire retreading seat is provided with a tire inlet channel for receiving a tire blank, and the stopping component is arranged at the tail end of the tire inlet channel; the tire overturning seat is also provided with a first conveyor belt for overturning the tire blank into a flat state; the centering conveying device comprises a centering channel, and the embryo moves from the centering channel. The utility model realizes automatic tire unloading, tire retreading, centering and conveying.

Description

Automatic tire unloading, retreading, centering and conveying equipment for tire blank of tire building machine

Technical Field

The utility model relates to the field of tire manufacturing, in particular to automatic tire unloading, tire retreading, centering and conveying equipment for a tire molding machine.

Background

When the secondary method tire building machine is in use, the formed tire blank is placed on a building drum in an upright state (the axis is arranged along the horizontal direction). After the molding is completed, the embryo is taken out of the molding drum and put into a subsequent object flow line for subsequent treatment. It is noted that the embryo is transported in a flat condition (axially disposed in a vertical direction) while being transported in the material flow line, because the embryo is prevented from moving, so that the embryo can be taken out later. That is, after the green tire is formed, the green tire needs to be taken out of the forming drum and put into a streamline, and meanwhile, the green tire needs to be turned over.

In order to achieve the above-mentioned purpose of tire unloading, there are two methods in the prior art: firstly, after the tire blank is molded, the transfer ring moves to the center position of the tire blank and clamps the tire blank, then the transfer ring axially moves outwards to the tire unloading position, the transfer ring loosens the tire blank, and the tire blank is taken out manually. Secondly, after the tire blank is molded, the transfer ring moves to the center position of the tire blank and clamps the tire blank, then the transfer ring axially moves outwards to the end part of the molding drum, the transfer ring loosens the tire blank, the tire blank falls on the end part of the molding drum, and the tire blank is manually taken out from the end part of the molding drum and put into a tire unloading position.

That is, no corresponding tire unloading device can directly put the tire blank into the tire unloading position from the molding drum at present, and the tire unloading operation is performed manually.

In order to achieve the aim of tire retreading, chinese patent (publication No. CN215556808U, publication No. 2022.01.18) discloses an automatic tire embryo molding overturning conveying system, which comprises a horizontal support, a vertical support, a lifting cylinder and an overturning cylinder.

The conveying system realizes overturning of the embryo, but the overturning structure is relatively complex, the embryo needs to be controlled by matching the lifting cylinder and the overturning cylinder, and the embryo is easy to separate from the horizontal bracket and the vertical bracket in the overturning process. In addition, the conveying system is not provided with a device for unloading the tire, and manual operation is needed, so that the production efficiency is reduced, and the labor intensity of workers is increased.

Disclosure of Invention

In order to solve the problems of tire unloading and tire retreading of the tire blanks, the utility model aims to provide automatic tire unloading, tire retreading, centering and conveying equipment for a tire forming machine, which can automatically realize tire unloading, overturning, centering and conveying processes of the tire blanks, simplify the structure of a turnover device, improve the production efficiency and reduce the labor intensity.

For the purpose of the utility model, the following technical scheme is adopted for implementation:

an automatic tire unloading, retreading, centering and conveying device for a tire building machine tire blank, comprising: the tire unloading device moves back and forth between the tire blank clamping station and the tire unloading station, a guide channel is arranged at the inlet towards the tire unloading station, a tire retreading device is connected with the outlet of the guide channel at the input end, and a centering conveying device is arranged at the output end of the tire retreading device;

the tire unloading device comprises: the lower clamping block and the upper clamping block are arranged in opposite directions, a clamping area is formed between the lower clamping block and the upper clamping block, and the lower clamping block and the upper clamping block can be close to or far from the clamping area; a tire outlet is formed in one side of the clamping area, a tire unloading mechanism is arranged on the side, opposite to the tire outlet, of the clamping area, and the execution end of the tire unloading mechanism faces the tire outlet and can move towards the clamping area to push out a tire in an upright state from the tire outlet;

the tire retreading device comprises: the tire overturning seat is provided with a tire inlet channel for receiving a tire blank, the input end of the tire inlet channel is positioned at the head end of the tire inlet channel, and the tire blocking and stopping component is arranged at the tail end of the tire inlet channel; the tire turning seat is also provided with a first conveyor belt, the output end of the first conveyor belt is positioned at one end of the first conveyor belt, the tire feeding channel is positioned above the first conveyor belt, and the first conveyor belt drives the tire to move so as to turn the tire into a flat state;

the centering conveyor includes: and a centering channel, wherein the embryo moves from the centering channel.

Preferably, the tire unloading mechanism includes: a third driving member and a tire discharging member provided on an execution end of the third driving member, the execution end of the third driving member being directed toward the tire outlet and having a degree of freedom of linear movement;

the tire unloading component is a turnover plate, the turnover plate is provided with a connecting part, the connecting part is rotationally arranged, the turnover plate is turned around the connecting part and moves towards the clamping area to apply force to the tire blank.

Preferably, an auxiliary push plate is arranged on one side of the overturning plate, which is far away from the tire outlet, an included angle is formed between the auxiliary push plate and the overturning plate, and the auxiliary push plate has a width which is suitable for a tire blank so as to increase the contact area with the tire blank; the lower clamping block is arranged on the upper end face of the turnover plate.

Preferably, the lower part of the side of the tire inlet channel moving along the first conveyor belt is provided with a tire passing opening, the height of the tire passing opening is larger than the width of the tire and smaller than 80% of the height of the tire, so that the tire can only pass through the tire passing opening in a flat state.

Preferably, the embryo passing opening is realized by the following ways: the upper part of the first conveyor belt is provided with a cross bar, the cross bar is positioned at one side of the tire inlet channel and extends along the extending direction of the tire inlet channel, and the position between the cross bar and the first conveyor belt is the tire embryo passing opening.

Preferably, the first conveyor belt includes: the first belt body and the second belt body are arranged at intervals, and a positioning groove is formed between the first belt body and the second belt body.

Preferably, a limiting frame is arranged on one side of the tire inlet channel, one side of the tire inlet channel is blocked by the limiting frame, and a second roller is rotatably arranged on the limiting frame.

Preferably, the width of the guide channel is 1.1-1.5 of the width of the embryo; the both sides of guide channel are provided with first roller, and first roller rotates the setting to the axis extends along upper and lower direction.

Preferably, the centering and conveying device includes: the conveying device comprises a conveying frame and a second conveying belt arranged on the conveying frame, wherein a first centering frame and a second centering frame are respectively arranged on two sides above the second conveying belt, a centering channel is formed between the first centering frame and the second centering frame, and the centering channel is in a shape with a large inlet and a small outlet; the side of the first centering frame and the second centering frame, which faces the inlet of the centering channel, is respectively provided with a first centering roller and a second centering roller in a rotating way; the first centering frame and the second centering frame are respectively provided with an adjusting component, the adjusting components control the first centering frame and the second centering frame to swing, and the size of the centering channel is adjusted.

Preferably, the adjusting assembly comprises: the upper end and the pivot that first centering frame or second centering frame are connected, and the pivot rotates to set up in the pivot mount pad, and the lower extreme of pivot is provided with the rotor plate, and the rotor plate is connected with driving element, and driving element drives the rotor plate and rotates, realizes the swing of first centering frame or second centering frame.

In summary, the beneficial effects of the utility model are as follows: in the tire blank clamping station, the tire blank in the vertical state is clamped and taken out through a lower clamping block and an upper clamping block in the tire unloading device, and in the tire unloading station, the tire blank is pushed into the tire retreading device through a tire unloading mechanism. The tire overturning device overturns the tire blank in the vertical state to be in a flat state through the cooperation of the stop component and the first conveyor belt. The centering channel in the centering conveying device centers the embryo, so that the accuracy of the position of the embryo is ensured. Therefore, the equipment realizes automatic tire unloading, overturning, centering and conveying of the tire blanks.

Drawings

FIG. 1 is a perspective view of an automatic tire unloading, retreading, centering and conveying device for a tire building machine.

FIG. 2 is a top view of an automatic tire unloading, retreading, centering and conveying device for a tire building machine.

Fig. 3 is a left side view of the automatic tire unloading and retreading centering conveying device for the tire building machine.

Fig. 4 is a perspective view of the tire unloading device.

Fig. 5 is a perspective view of the tire retreading apparatus.

Fig. 6 is a perspective view of the centering conveyor.

Detailed Description

The secondary tire building machine (not shown) includes a one-stage building machine having a laterally disposed metal drum and a two-stage building machine having a laterally disposed belt drum (also referred to as tread drum) provided on one side with a transfer ring 500 coaxial with the belt drum and axially movable. In general, the transfer ring 500 is a ring-shaped member, and the bottom of the transfer ring 500 is slidably disposed on the slide rail 600 so as to be movable in the axial direction, a plurality of grip plates movable in the radial direction are disposed inside the transfer ring 500, and the grip plates are uniformly arranged in the circumferential direction.

When the secondary tyre building machine is used, materials such as an inner liner, a carcass layer, a turnup, a tyre bead and the like are sequentially attached to a metal drum, and the materials are compounded to form a carcass assembly. A plurality of belt layers and a tread layer are sequentially attached to the belt drum, and the materials are compounded to form a crown assembly. Transfer ring 500 removes the crown assembly from the belt drum, then manually removes and inserts the carcass assembly from the metal drum, then transfer ring 500 moves the crown assembly back onto the belt drum, after which the belt drum inflates the carcass assembly, the carcass assembly expands outwardly and eventually contacts the inner surface of the crown assembly, at which time transfer ring 500 releases the crown assembly and transfer ring 500 moves axially outwardly away from the belt drum, the crown assembly being attached to the carcass assembly. And finally, compounding the crown assembly on the tire body assembly in a rolling way, and forming a tire blank after compounding.

In the prior art, in order to remove the formed embryo from the belt drum, the following two methods are generally adopted:

first, after the green tire is formed, the green tire is left on the belt drum, the transfer ring 500 moves to the center of the green tire and clamps the green tire, then the transfer ring 500 moves axially outwards to the tire unloading position, the transfer ring 500 releases the green tire, and the green tire is taken out manually.

Secondly, after the green tyre is formed, the green tyre is left on the belt drum, the transfer ring 500 moves to the center position of the green tyre and clamps the green tyre, then the transfer ring 500 moves axially outwards to the end part of the belt drum, the transfer ring 500 loosens the green tyre, the green tyre falls on the end part of the belt drum, and the green tyre is manually taken out from the end part of the belt drum and put into a tyre unloading position.

The two methods all need to manually put the embryo into the position of unloading, the degree of automation is not high, and the production efficiency is reduced due to additional manual operation. In addition, it is noted that the molded green tire is in an upright state (axially disposed in a horizontal direction), and is easy to roll, so that the subsequent conveyance of the green tire is unfavorable, and therefore, in the process of discharging the green tire, the green tire also needs to be turned to a flat state (axially disposed in a vertical direction). In order to solve the problems, the utility model provides automatic tire unloading, tire retreading, centering and conveying equipment for tire building machine tires, which can realize automatic tire unloading, tire retreading, centering and conveying without manual intervention and improve the production efficiency.

Fig. 1 shows a perspective view of an automatic tire-unloading and retreading centering conveyor apparatus for a tire building machine, the apparatus being disposed on one side in an axial direction of a belt drum, the apparatus comprising: the tire unloading device 100, the guide channel 200, the tire retreading device 300 and the centering conveying device 400 are arranged on the sliding rail 600 in a sliding manner, and the tire unloading device 100 moves back and forth between a tire blank clamping station and a tire unloading station. In a preferred embodiment, the tire discharging device 100 may be fixedly disposed at one side of the transfer ring 500 to move in synchronization with the transfer ring 500, so that the tire discharging device 100 may be controlled to move using the control system of the transfer ring 500. The guide channel 200 is provided at one side of the slide rail 600 with the entrance 201 of the guide channel 200 facing the slide rail 600, and furthermore, the guide channel 200 is generally provided to be inclined downward (as shown as high left and low right in fig. 1) so as to facilitate rolling of the embryo in the guide channel 200. The tire retreading device 300 is arranged on the outlet 202 of the guide channel 200, so that the tire is rolled out of the guide channel 200 and then enters the tire retreading device 300, and the tire retreading device 300 overturns the tire to be in a flat state from an upright state. The centering and conveying device 400 is arranged at the output end of the tire retreading device 300, and the turned tire blanks enter the centering and conveying device 400 from the tire retreading device 300, and the centering and conveying device 400 centers and conveys the tire blanks. In addition, a green tire elevator (not shown) is typically provided at the output end of the centering conveyor 400 to receive and transport green tires.

It should be noted that, the embryo clamping station refers to: and forming the embryo on the belt drum, namely forming the embryo at the position of the formed embryo. The tire unloading station means: the inlet 201 of the guide channel 200 is located. That is, the tire unloading device 100 moves back and forth between the belt drum and the guide path 200. Furthermore, the guide channel 200 may be a separate device or component or may be formed on the input end of the tyre tilting device 300 as part of the tyre tilting device 300, i.e. the guide channel 200 only needs to provide a channel for rolling the embryo from the tyre unloading device 100 to the tyre tilting device 300. In addition, the position of the tire retreading device 300 can be adjusted by reasonably setting the length and the inclined angle of the guide channel 200, so that the arrangement of the equipment is convenient, and the tire retreading device is suitable for the configuration of different workshops.

When the device is used, the tire unloading device 100 moves to a tire blank clamping station to be opposite to the center line of the tire blank on the belt drum, the tire unloading device 100 clamps the outer peripheral surface of the tire blank, and the belt drum loosens the tire blank, so that the tire blank is transferred to the tire unloading device 100. Then, the tire unloading device 100 moves to the tire unloading station, so that the tire is opposite to the inlet 201 of the guide channel 200, the tire unloading device 100 pushes the tire into the guide channel 200, the tire is in an upright state and enters the guide channel 200, rolls forwards along the extending direction of the guide channel 200 until the tire enters the tire retreading device 300, the tire retreading device 300 stops the rolled tire, then the tire in the upright state is turned to a flat state, the tire retreading device 300 sends the tire into the centering and conveying device 400, and the centering and conveying device 400 positions and conveys the tire outwards.

The beneficial effects of this equipment are: by taking out the embryo from the belt drum and putting it into the guide passage 200 by the embryo unloading device 100, automatic unloading of the embryo is realized, manual handling is avoided, and the efficiency of unloading is improved. The tire blank is turned to be in a flat state by the tire turning device 300, so that the subsequent tire blank is convenient to convey. The centering conveying device 400 positions the embryo, so that the accuracy of the position of the embryo when the embryo is output from the centering conveying device 400 is ensured, the embryo can smoothly enter a subsequent material line, and the embryo is convenient to take and place.

The specific structure of each device is described in turn below.

As shown in fig. 4, the tire discharging device 100 includes a base 110 slidably disposed on a slide rail 600, and the base 110 may be a separate component, may be a part of the transfer ring 500, or may be a connection plate fixedly disposed with the transfer ring 500. In the present embodiment, the tire discharging device 100 is fixedly attached to the transfer ring 500, and thus the base 110 can be considered to be provided on the transfer ring 500, and it can be seen from fig. 4 that the base 110 has a substantially L-shape. The upper end surface of the base 110 is provided with a first driving part 120 (view angle reason is not shown in fig. 4, see fig. 3), and an output end of the first driving part 120 has a degree of freedom in an up-down direction, that is, the output end of the first driving part 120 can move up and down. The lifting table 130 is connected to the output end of the first driving member 120, and the first driving member 120 drives the lifting table 130 to lift above the base 110. It is common that a guide member (e.g., a slider, a guide bar, etc., see fig. 3 in particular) for guiding when lifting is provided between the lifting table 130 and the base 110, so as to ensure the smoothness of lifting and the accuracy of movement. The right end of the lifting table 130 is provided with a lower clamping block 140 for clamping the bottom of the embryo, an upper clamping block 150 for clamping the top of the embryo is arranged above the lower clamping block 140, and the upper clamping block 150 and the lower clamping block 140 are opposite to each other, so that a clamping area for clamping the embryo is formed between the upper clamping block 150 and the lower clamping block 140. The upper clamp block 150 is provided with a second driving part 160, and an output end of the second driving part 160 has a degree of freedom in an up-down direction, so that the second driving part 160 can drive the upper clamp block 150 to move up and down. The clamping of the green tyre can be achieved by the cooperation of the upper clamping block 140 and the lower clamping block 150, i.e. the green tyre can be taken out from the belt drum. In order to feed the green tire into the tire unloading station, a tire unloading mechanism 170 is provided on the left side of the lower clamping block 140 (i.e., the side away from the guide channel 200), the execution end of the tire unloading mechanism 170 faces the clamping area (or the guide channel 200), a force perpendicular to the axial direction is applied to the green tire, the green tire is pushed out of the clamping area, and the position where the green tire leaves from the tire unloading device 100 is called a tire outlet, which is located on the right side of the tire unloading device 100 in this embodiment.

When the tire unloading device 100 is used, the base 110 is moved to a tire clamping station, the lower clamping block 140 and the upper clamping block 150 are respectively moved below and above the tire, then the first driving component 120 drives the lifting platform 130 to move upwards, the lower clamping plate 140 is abutted against the bottom of the tire, the second driving component 160 drives the upper clamping plate 150 to move downwards, the upper clamping plate 150 is abutted against the top of the tire, so that the tire is clamped in the clamping area, the belt drum loosens the tire, and the tire is transferred to the tire unloading device 100, wherein the tire is still in an upright state. The base 110 is moved to the unloading position so that the embryo is aligned with the entrance 201 of the guide path 200, and at this time, the first driving part 120 and the second driving part 160 are reset, that is, the lower clamping plate 140 and the upper clamping plate 150 release the embryo, and at the same time, the unloading mechanism 170 acts to apply a force perpendicular to the axis of the embryo to the left side of the embryo, so that the embryo is pushed to the right, and thus enters the guide path 200.

As shown in fig. 4, the base 110 includes a bottom plate 111 slidably disposed on the slide rail 600, an extension plate 112 fixedly disposed on the bottom plate 111 and extending to the left, and a bracket 113 (not shown for viewing angle reasons in fig. 4, see fig. 3) disposed on an upper end surface of the extension plate 112 and extending upward, the bracket 113 being disposed at the left side of the clamping area, so that the clamping area is ensured to have a sufficient space for clamping the embryo. It should be noted that, the bottom plate 111, the extension plate 112, and the bracket 113 may be three separate components, or may be two-by-two integrated, or three integrated components.

The first driving part 120 may adopt an air cylinder, a hydraulic cylinder (e.g. an oil cylinder), a screw rod, etc., and in this embodiment, the first driving part 120 is disposed longitudinally, as shown in fig. 3 and 4, and the lower end of the first driving part 120 is fixedly disposed on the extension plate 112, and the output end (i.e. a piston rod) of the first driving part 120 faces upward and is connected to the lifting platform 130, so that the first driving part 120 can drive the lifting platform 130 to perform lifting motion.

As shown in fig. 4, the lifting table 130 has an L shape, and includes a housing 131 disposed outside the bracket 113 and extending longitudinally, and a lifting plate 132 fixedly connected to the housing 131 and extending rightward, and is longitudinally slidably connected between an inner wall of the housing 131 and an outer wall of the bracket 113, for example, by cooperation between a slider and a slide rail (see fig. 3). Further, an upper portion of the housing 131 is connected to an output end of the first driving part 120, so that the housing 131 can slide on the bracket 113 in a longitudinal direction under the driving of the first driving part 120. Because the lifting plate 132 is fixedly connected with the housing 131, the lifting plate 132 is driven to synchronously lift while the housing 131 moves. The lifter plate 132 extends to the right to the lower portion of the clamping region to facilitate installation of the lower clamping block 140.

The lower clamping block 140 is disposed on the upper end surface of the lifting plate 132, and the lower clamping block 140 is preferably disposed directly under the clamping area, that is, during clamping, the lower clamping block 140 is preferably abutted under the embryo to ensure the clamping effect of the embryo. In addition, in order to improve the stability of clamping, the upper end surface of the lower clamping block 140 is provided with a lower clamping groove 141, and the clamping groove has a structure with a concave middle and convex two sides, for example, in fig. 4, the lower clamping groove 141 has a V shape, so that the lower clamping groove 141 can hold the embryo from the bottom during clamping, and give the embryo a component force from the horizontal directions on the two opposite sides in the radial direction, thereby ensuring that the embryo is stably clamped.

The upper clamp block 150 is also preferably disposed directly above the clamping area, corresponding to the lower clamp block 140, such that the upper clamp block 150 abuts directly above the embryo when clamped. In addition, the upper clamping groove 151 is provided on the lower end surface of the upper clamping block 150, and the outer shape of the upper clamping groove 151 may refer to the lower clamping groove 141, which will not be described again.

The second driving part 160 may also be a cylinder, a hydraulic cylinder (e.g., an oil cylinder), a screw rod, etc., corresponding to the first driving part 120, and in this embodiment, the second driving part 160 is fixedly disposed on one side of the transmission ring 500 through the adapter plate 161, the second driving part 160 is disposed longitudinally, and the output end (i.e., a piston rod) faces downward, and the top of the upper clamping block 140 is connected to the output end of the second driving part 160. In addition, in order to ensure the stability of the upper clamping block 140 during movement, the adapter plate 161 is further provided with a guide member, and typically, a guide rod (see fig. 4) may be used, where the lower end of the guide rod is fixedly connected to the top surface of the upper clamping block 150, and the upper end of the guide rod is disposed on the adapter plate 161 in a penetrating manner.

As shown in fig. 4, the tire discharging mechanism 170 includes a third driving member 171, and a tire discharging member 172 provided on an execution end of the third driving member 171, the execution end of the third driving member 171 being provided toward the tire outlet (not necessarily facing the tire outlet), and having a degree of freedom of moving straight toward a position where the clamping area is located, the tire discharging member 172 exerting a pushing force on the tire in the clamping area by the third driving member 171, thereby pushing the tire out of the clamping area.

As an example, the third driving part 171 may employ an air cylinder, and the third driving part 171 may be horizontally disposed or upwardly and downwardly inclined. The third driving member may be provided on the housing 131 or on the lifter plate 132. As will be described below, the left end of the third driving member 171 is fixedly disposed on the right side surface of the housing 131 when the third driving member 171 is disposed horizontally, and the right end of the third driving member 171 is directed toward the grip area from the horizontal direction, and the third driving member 171 drives the tire discharging member 172 to move rightward from the left side when discharging the tire, thereby pushing the tire to move rightward. When the third driving part 171 is disposed obliquely upward, the left end of the third driving part 171 may be disposed on the housing 131 or on the lifting plate 132, and the right end of the third driving part 171 is obliquely directed to the clamping area, and when the tire is unloaded, the third driving part 171 drives the tire unloading part 172 to move to the clamping area, thereby pushing the tire to move rightward. Similarly, the third driving part may be provided to be inclined downward on the housing 131. But it is preferable that the third driving part 171 is disposed on the elevation plate 132 to be inclined upward.

The tyre unloading part 172 may be a push block separately arranged on the executing end of the third driving part 171, and the movement of the output end of the third driving part 171 drives the push block to move linearly, so as to realize tyre unloading. But it is preferable that the tire unloading member 172 is a turning plate 173, and the turning movement of the turning plate 173 pushes the tire blank to unload the tire, as shown in fig. 4. Specifically, the right end (also referred to as a connection portion) of the flipping plate 173 is provided on the elevating plate 132 by rotation (e.g., shaft connection), in which case the third driving part 171 needs to be provided on the elevating plate 132 to be inclined upward. The left side of the inversion plate 173 is connected to the output end of the third driving member 171, and when the output end of the third driving member 171 moves rightward, the inversion plate 173 performs an inversion movement to the right side, thereby applying a rightward force to the green tire, and pushing the green tire out of the grip region.

Further, the above lower clamp block 140 may be disposed on the upper end surface of the inversion plate 173 such that when the inversion plate 173 is inverted, the lower clamp block 140 is inverted in synchronization to push the embryo toward the guide channel 200.

In addition, an auxiliary push plate 174 may be disposed on the left side of the turning plate 173, where the auxiliary push plate 174 extends obliquely upward, so that an obtuse angle is formed between the auxiliary push plate 174 and the turning plate 173, and the auxiliary push plate 174 has a considerable axial length along the embryo (usually equal to the axial length of the embryo), so that the auxiliary push plate 174 can cover most of the axial length of the embryo, increasing the contact area with the embryo during turning, ensuring that the turning thrust can accurately act on the embryo, and avoiding the embryo from being unable to enter the guide channel 200 due to the deflection of the stress direction. Specifically, when the inversion plate 173 is inverted, the auxiliary push plate 174 will invert synchronously, and after the inversion, the auxiliary push plate 174 will abut against the side of the embryo away from the guide channel 200, so as to push the embryo into the guide channel 200.

The tire unloading device 100 has the following beneficial effects: clamping of the embryo is achieved by arranging the lower clamping block 140 and the upper clamping block 150, axial movement of the embryo is achieved by arranging the base 110 on the sliding rail 600 in a sliding manner, and tire unloading action of the embryo is achieved by arranging the tire unloading mechanism 170, namely, the device achieves the function of automatically unloading the tire from the belt drum. In addition, the tire unloading mechanism 170 realizes tire unloading through the overturning motion of the overturning plate 171, and ensures that the tire can be accurately pushed out.

As shown in fig. 1, the guide channel 200 includes a guide seat 210 located at the lower portion, and baffles 220 disposed at the front and rear sides of the guide seat 210, wherein the baffles 220 extend above the guide seat 210, and the guide channel 200 is a channel with openings at the left and right ends defined between the upper end surface of the guide seat and the baffles 220 at the front and rear sides.

One end of the guide holder 210 faces and is close to the slide rail 600, and the height of the end of the guide holder 210 is adapted to the height of the tire unloading device 100, so that the pushed-out tire in the tire unloading device 100 can smoothly enter the guide channel 200. In addition, the guide holder 210 is preferably inclined, so that the upper end surface of the guide holder 210 is in a shape with left high and right low, and the embryo rolls downwards along the upper end surface of the guide holder 210 after entering the guide holder 210, and no additional component is needed to push the embryo to roll forwards.

The baffles 220 on the front and rear sides can block the embryo and prevent the embryo from rolling out of the guide holder 210. In a preferred embodiment, as shown in fig. 1, the baffle 220 includes a plurality of first rollers 221 rotatably disposed, the first rollers 221 are aligned along the extending direction of the guide channel 200, and the axes of the first rollers 221 extend in the up-down direction, specifically, the axial direction of the first rollers 221 is perpendicular to the upper end surface of the guide seat 210. When the green tire comes into contact with the first roller 221, the first roller 221 rotates about its own axis, so that the green tire continues to roll forward along the extending direction of the guide path 200.

It should be noted that the width of the guide channel 200 should not be too large to prevent the embryo from turning to a flat state in the guide channel 200. Typically, the width of the guide channel 200 is 1.1-1.5 times the width of the embryo to ensure that the embryo is always in an upright position when rolling in the guide channel 200.

As shown in fig. 1 and 5, the tire retreading device 300 has an input end 301 and an output end 302, and a tire blank enters from the input end 301 and exits from the output end 302. The input 301 communicates with the outlet 202 of the pilot channel 200. In this embodiment, the orientation of the input end 301 is perpendicular to the orientation of the output end 302. The tyre tilting device 300 comprises a horizontally arranged tyre tilting seat 310, wherein one side (left side in fig. 5) of the tyre tilting seat 310 faces and approaches the guiding channel 200, which side is the input 301. The side of the turning-over seat 310 (or the right side in fig. 5) remote from the input 301 (or the guide channel 200) is provided with a stopping member 320, the stopping member 320 extending above the turning-over seat 310, the stopping member 320 being adapted to stop the embryo against the turning-over seat 310. A tire inlet channel 303 for a tire to enter is formed among the upper end surface of the tire turning seat 310, the stop component 320 and the input end 301, namely, the input end 302 is positioned at the head end of the tire inlet channel 303, and the stop component 320 is positioned at the tail end of the tire inlet channel 303. The tire turning seat 310 is provided with a first conveyor belt 330 moving in a horizontal direction (in the front-rear direction in fig. 5), and a discharge end (front side in fig. 5) of the first conveyor belt 330 is the output end 302, and in this embodiment, the first conveyor belt 330 moves forward from the rear direction.

It should be noted that, the first conveyor belt 330 is not always in a moving state, and may be started only after the embryo enters the tire retreading device 300, for example, a photoelectric sensor may be disposed at an entrance of the guide channel 200 to sense whether the embryo enters the guide channel 200, and a corresponding delay control system may be disposed, so that the first conveyor belt 330 is started after the embryo enters the tire retreading device 300.

In use of the tire retreading device 300, the tire enters the upper end face of the tire retreading seat 310 from the input end 301 and continues to roll along the tire feeding channel 303 until the tire is collided with the stopping member 320, at which time the tire is reversely rebounded under the action of the reaction force, and the above process may be repeated many times, but the tire finally stays on the first conveyor belt 330, and as described above, the first conveyor belt 330 is still in a stationary state. When the embryo is stationary (the embryo may be in an upright state or in a flat state at this time), the first conveyor belt 330 is started, the lower part of the embryo will move synchronously along with the first conveyor belt 330, if the embryo is in an upright state, the upper part of the embryo will stop at the original position due to inertia, so that the embryo is in an inclined arrangement, and finally will be turned over to a flat state, and then output from the first conveyor belt 330 in a flat state.

In order to avoid the collision with the stopping member 320 or the detachment of the embryo from the tire inlet channel 303 due to the angle at which the embryo enters the tire inlet channel 303, a stopper 340 is provided at one end (rear end in fig. 5) of the tire retreading seat 310, and the stopper 340 serves as a barrier at the rear side of the tire inlet channel 303 to block the rear side of the tire inlet channel 303 and prevent the embryo from falling out of the tire retreading seat 310. Further, the second roller 341 may be disposed on the limiting frame 340, where the second roller 341 is rotatably disposed along the axis of the second roller 341, so that the guiding function can be performed on the embryo when the embryo contacts with the second roller 341.

In addition, in order to ensure that each embryo can smoothly turn over from the upright state to the flat state, the side of the in-mold passage 303 near the output end 302 is provided with an embryo passing opening 304, and the height of the embryo passing opening 304 is greater than the width of the embryo but less than 80% of the diameter of the embryo, so that the embryo in the flat state can smoothly pass through the embryo passing opening 304, while the embryo in the upright state cannot pass through the embryo passing opening 304 when moving on the first conveyor belt 330, and the embryo is inclined due to the upper part of the embryo being blocked by the horizontal direction, and finally turns over to the flat state and passes through the embryo passing opening 304.

As a specific implementation of the embryo passage opening 304, a cross bar 350 (see fig. 1) extending in a horizontal direction may be disposed above the first conveyor belt 330, and the embryo passage opening 304 is formed between the cross bar 350 and the first conveyor belt 330, when the upright embryo contacts with the cross bar 350, the middle upper portion of the embryo is blocked by the cross bar 350, and the lower portion of the embryo still moves synchronously with the first conveyor belt 330, so that the embryo is turned over. In addition, the cross bar 350 is disposed on one side of the tire feeding channel 303, and can act as a baffle on one side of the tire feeding channel 303 like the limit frame 340 in the foregoing, so that the tire rolls in the tire feeding channel 303, and the tire is prevented from leaving the tire feeding channel 303.

As a specific example of the stopping member 320, the stopping member 320 may be a plate-like structure provided in a longitudinal direction, but preferably, the stopping member 320 is made of a flexible material such as sponge, cloth, etc., so that the embryo is rapidly braked to stay on the first conveyor belt 330 when the stopping member 320 is contacted. In addition, the stop member 320 may further be provided with an adjusting mechanism 321, where the adjusting mechanism 321 adjusts the position of the stop member 320 in the horizontal direction, so as to adapt to the embryo with different specifications. Typically, the adjustment mechanism 321 may employ a screw (see fig. 5).

As an improvement of the first conveyor belt 330, the first conveyor belt 330 includes a first belt body 331 and a second belt body 332, and the first belt body 331 and the second belt body 332 move synchronously, but a positioning groove 333 is formed between the first belt body 331 and the second belt body at intervals. The positioning groove 333 is provided with the following advantages: when the green tire contacts the stopping member 320 and rebounds back to the first conveyor belt 330, the circumferential surface of the lower portion of the green tire is caught in the positioning groove 333 because the green tire is still in the upright state, thereby positioning the green tire, ensuring that the position of the green tire is not deviated, and enabling accurate conveyance thereof to the subsequent positioning and conveying device 400.

The tire retreading device 300 has the advantages that: the tire is guided to enter the tire turning seat 310 by arranging the tire inlet channel 303, the tire is stopped on the tire turning seat 310 by arranging the stop component 320 at the tail end of the tire inlet channel 303, and the tire is turned to be in a flat state by arranging the first conveyor belt 330 and is sent out, so that automatic turning and conveying of the tire are realized. Compared with the prior art that the overturning of the embryo is realized through the movement of the air cylinder, the device simplifies the structure, does not need to arrange the air cylinder, can realize the overturning action only through the cooperation of the stop component 320 and the first conveyor belt 330, and is simple and practical. In addition, by providing the cross bar 350, each embryo is ensured to be smoothly turned from the upright state to the flat state. The positioning groove 333 is arranged to initially position the embryo.

As shown in fig. 1 and 6, the centering and conveying device 400 includes a conveying frame 410 that is obliquely disposed, the lower end of the conveying frame 410 is immediately disposed on the output end 302 of the tire retreading device 300, a second conveyor belt 420 is disposed on the conveying frame 410, a first centering frame 430 and a second centering frame 440 are disposed above the second conveyor belt 420 and along two sides of the conveying direction, a centering channel 401 is formed between the first centering frame 430 and the second centering frame 440, the centering channel 401 has a shape with a large inlet and a small outlet, preferably a splayed shape, and the sides of the first centering frame 430 and the second centering frame 440 facing the inlet are provided with a first centering roller 431 and a second centering roller 441, respectively, and the axial directions of the first centering roller 431 and the second centering roller 441 are perpendicular to the plane on which the second conveyor belt 420 is disposed.

When the centering and conveying device 400 is used, the embryo enters the lower end of the second conveyor belt 420 and moves upwards under the action of the second conveyor belt 420, and when the embryo is at the correct position, namely, the embryo is at the middle position of the second conveyor belt 420, the embryo directly passes through the centering channel 401 and cannot contact with the first centering frames 430 and the second centering frames 440 at the two sides. When the embryo deviates from the correct position, i.e. the embryo deviates to one side, the embryo will contact with the first centering frame 430 or the second centering frame 440 on the corresponding side, so that the embryo will move transversely under the action of the first centering roller 431 or the second centering roller 441 until aligned with the centering channel 401, ensuring that the embryo is in the middle position of the second conveyor belt 420 for subsequent picking and placing of the embryo.

In order to facilitate the movement of the embryo from side to side on the second conveyor belt 420, the second conveyor belt 420 is preferably a ball grid conveyor belt, i.e. a plurality of balls are uniformly distributed on the surface of the second conveyor belt, and the balls at least need to have a degree of freedom of rotating in the left-right direction, so as to ensure that the embryo is subjected to less friction when moving from side to side.

Further, an adjusting component 450 may be disposed on the first centering frame 430 and the second centering frame 440, respectively, where the first centering frame 430 and the second centering frame 440 are swingably disposed above the second conveyor belt 420 through the adjusting component 450, and in this case, the size of the centering channel 401 may be adjusted, so that the centering conveying device 400 may convey and center the green tire with different specifications, for example, when the size of the green tire is smaller, the centering channel 401 may be correspondingly reduced to adapt to the green tire; similarly, when the embryo size is large, the centering channel 401 can be correspondingly enlarged.

Specifically, in the present embodiment, the adjusting assembly 450 on the first centering frame 430 is exemplified, and the adjusting assembly 450 includes a rotation shaft 451, a rotation shaft mounting seat 452, a rotation plate 453, a connection shaft 454, an adapter 455, and a driving element (not shown). The axis direction of the rotating shaft 451 is perpendicular to the plane where the second conveyor belt 420 is located, the upper end of the rotating shaft 451 is fixedly connected with the outer end of the first fixed middle frame 430, the middle lower portion of the rotating shaft 451 is rotatably arranged in the rotating shaft mounting seat 452, and the rotating shaft mounting seat 452 is fixedly arranged on the side face of the conveying frame 410. The rotating plate 453 is fixedly arranged at the lower end of the rotating shaft 451, a connecting shaft 454 is arranged on the rotating plate 453, the adapter 455 is hinged to the connecting shaft 454, and the output end of the driving element is connected with the adapter 455. The driving element may typically be a cylinder. The drive element may be disposed at the bottom of the carriage 410.

When the adjusting assembly 450 is used, the driving element drives the adapter 455 to move, so that the adapter 455 drives the rotating plate 453 to rotate through the connecting shaft 454, and the rotating shaft 451 rotates in the rotating shaft mounting seat 452, so that the first centering frame 430 at the upper end of the rotating shaft 451 swings, and the adjustment of the centering channel 401 is realized.

The centering and conveying device 400 has the beneficial effects that: by providing the first centering frame 430 and the second centering frame 440 above the second conveyor belt 420, a centering channel 401 is formed above the second conveyor belt 420, and the embryo passes through the centering channel 401, so that the embryo is ensured to be in a correct position, and the embryo can be taken and placed later.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art. The generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An automatic tire unloading, retreading, centering and conveying device for a tire building machine tire blank is characterized by comprising: a tire unloading device (100) which moves back and forth between a tire blank clamping station and a tire unloading station, a guide channel (200) which is arranged towards the tire unloading station and is provided with an inlet (201), a tire retreading device (300) which is connected with an outlet (202) of the guide channel (200) at an input end (301), and a centering conveying device (400) which is arranged at an output end (302) of the tire retreading device (300);

the tire unloading device (100) comprises: a lower clamping block (140) and an upper clamping block (150) for clamping the embryo, wherein the lower clamping block (140) and the upper clamping block (150) are arranged in opposite directions, a clamping area is formed between the lower clamping block and the upper clamping block, and the lower clamping block (140) and the upper clamping block (150) can be close to or far from the clamping area; a tire outlet is formed in one side of the clamping area, a tire unloading mechanism (170) is arranged on the side, opposite to the tire outlet, of the clamping area, the execution end of the tire unloading mechanism (170) faces the tire outlet and can move towards the clamping area, and a tire in an upright state is pushed out from the tire outlet;

the tire retreading device (300) comprises: the tire overturning seat (310) and the stopping component (320), wherein the tire overturning seat (310) is provided with a tire inlet channel (303) for receiving a tire, the input end (301) is positioned at the head end of the tire inlet channel (303), and the stopping component (320) is arranged at the tail end of the tire inlet channel (303); the tire turning seat (310) is also provided with a first conveyor belt (330), the output end (302) is positioned at one end of the first conveyor belt (330), the tire feeding channel (303) is positioned above the first conveyor belt (330), and the first conveyor belt (330) drives the tire to move so as to turn the tire into a flat state;

the centering and conveying device (400) comprises: a centering channel (401), from which the embryo moves.

2. Tyre building machine embryo automatic tyre unloading and retreading centering conveying device according to claim 1, characterized in that the tyre unloading mechanism (170) comprises: a third driving member (171) and a tire discharging member (172) provided on an execution end of the third driving member (171), the execution end of the third driving member (171) being oriented toward the tire outlet, and having a degree of freedom of linear movement;

the tire unloading part (172) is a turnover plate (173), the turnover plate (173) is provided with a connecting part, the connecting part is rotationally arranged, the turnover plate (173) turns around the connecting part and moves towards the clamping area to apply force to the tire blank.

3. The automatic tire unloading and retreading centering conveying device for tire building machine according to claim 2, wherein an auxiliary push plate (174) is arranged on one side of the turning plate (173) far away from the tire outlet, an included angle is formed between the auxiliary push plate (174) and the turning plate (173), and the auxiliary push plate (174) has a width suitable for the tire so as to increase the area when the auxiliary push plate (174) contacts the tire; the lower clamping block (140) is arranged on the upper end face of the turnover plate (173).

4. Tyre building machine tyre automatic unloading and retreading centering conveying device according to claim 1, characterized in that the side lower part of the tyre feeding channel (303) moving along the first conveyor belt (330) is provided with a tyre passing opening (304), the height of the tyre passing opening (304) is larger than the width of the tyre and smaller than 80% of the height of the tyre, so that the tyre can only pass through the tyre passing opening (304) in a flat state.

5. The automatic tire unloading and retreading centering conveying device for tire building machine tire blanks according to claim 4, wherein the tire blank passing opening (304) is realized by the following modes: the upper part of the first conveyor belt (330) is provided with a cross bar (350), the cross bar (350) is positioned at one side of the tire inlet channel (303) and extends along the extending direction of the tire inlet channel (303), and the position between the cross bar (350) and the first conveyor belt (330) is the tire embryo passing opening (304).

6. Tyre building machine embryo automatic tyre unloading and retreading centring conveying device according to claim 1, characterized in that the first conveyor belt (330) comprises: the first belt body (331) and the second belt body (332) are arranged at intervals, and a positioning groove (333) is formed between the first belt body (331) and the second belt body (332).

7. The automatic tire unloading and retreading centering conveying device for the tire building machine according to claim 1, wherein a limiting frame (340) is arranged on one side of the tire feeding channel (303), the limiting frame (340) blocks one side of the tire feeding channel (303), and a second roller (341) is rotatably arranged on the limiting frame (340).

8. Tyre building machine embryo automatic unloading and retreading centering conveying device according to claim 1, characterized in that the width of the guiding channel (200) is 1.1-1.5 of the embryo width; the guide channel (200) is provided with a first roller (221) on both sides, the first roller (221) is rotatably arranged, and the axis extends along the up-down direction.

9. Tyre building machine embryo automatic tyre unloading and retreading centering conveying device according to claim 1, characterized in that the centering conveying means (400) comprises: the conveying device comprises a conveying frame (410) and a second conveying belt (420) arranged on the conveying frame (410), wherein a first centering frame (430) and a second centering frame (440) are respectively arranged on two sides above the second conveying belt (420), a centering channel (401) is formed between the first centering frame (430) and the second centering frame (440), and the centering channel (401) is in a shape with a large inlet and a small outlet; the side of the first centering frame (430) and the second centering frame (440) facing the inlet of the centering channel (401) is respectively provided with a first centering roller (431) and a second centering roller (441) in a rotating way; the first centering frame (430) and the second centering frame (440) are both provided with an adjusting component (450), and the adjusting component (450) controls the first centering frame (430) and the second centering frame (440) to swing so as to adjust the size of the centering channel (401).

10. The apparatus for automatically unloading and retreading and centering a tire for a tire building machine according to claim 9, wherein the adjusting assembly (450) comprises: the upper end is with pivot (451) that first centering frame (430) or second centering frame (440) are connected, pivot (451) rotate and set up in pivot mount pad (452), and the lower extreme of pivot (451) is provided with rotor plate (453), and rotor plate (453) are connected with driving element, and driving element drives rotor plate (453) rotation, realizes the swing of first centering frame (430) or second centering frame (440).

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