A tire mounting device for a vulcanizer

Abstract

The present invention belongs to the technical field of tire vulcanization processing, and specifically relates to a tire loading device for a vulcanizer, which includes a receiving mechanism frame body, a receiving mechanism, and a buffer positioning mechanism. The receiving mechanism includes a receiving platform and receiving rollers; the buffer positioning mechanism includes a fixing plate, two buffer units arranged at intervals front and back, and a positioning driving unit. The buffer unit includes a stopper link, a stopper, a connecting plate, and a stopper spring. Inclined stop surfaces are provided on the opposite sides of the stoppers of the two buffer units; the buffer unit further includes a sliding rod slidably assembled in the receiving platform in the left-right direction, a locking rack fixed on the sliding rod, and a circle of locking grooves provided on the outer periphery of one end of the receiving roller. The right end of the sliding rod is connected to the connecting plate; the positioning driving unit includes a telescopic member and a pushing plate. The telescopic member is used to push the connecting plate to move to the right through the pushing plate after the buffer unit buffers the green tire.

Description

Technical Field

[0001] The present invention belongs to the technical field of tire vulcanization processing, and particularly relates to a tire loading device for a vulcanizer. Background Art

[0002] A tire vulcanizer is a device that converts green tires into cured tires. Through heating and pressurization, a chemical reaction occurs between the rubber and the vulcanizing agent, enabling the tire to obtain the required strength, elasticity, and durability. Before the vulcanizer works, a green tire needs to be placed into the vulcanization position of the tire vulcanizer through a tire loading device.

[0003] Generally, the tire loading device includes a conveying mechanism, a positioning mechanism, and a grasping mechanism. The conveying mechanism is used to convey the green tire; the positioning mechanism positions the green tire at the end of the conveying mechanism to keep the green tire in a specified position; the grasping mechanism grasps the green tire at the specified position and transfers the green tire to the vulcanization position. The key problem of the tire loading device is how the positioning mechanism positions the green tire at the end of the conveying mechanism to a specified position so that the grasping mechanism can accurately grasp it.

[0004] Among them, the invention patent with the authorization announcement number CN104816413B discloses a new type of double-station automatic tire storage device for a vulcanizer, which includes a front roller path and a rear roller path arranged in sequence from front to back. The front roller path is located above the rear roller path. Both the front roller path and the rear roller path can be flipped, so that both the front roller path and the rear roller path have a horizontal arrangement state and an inclined arrangement state. When both the front roller path and the rear roller path are in the inclined arrangement state, the green tire on the front roller path can slide onto the rear roller path. A rear automatic centering device is installed on the rear roller path. The rear automatic centering device includes four centering pinch rollers that can move relative to each other. The centering pinch rollers can position the green tire when moving relative to each other. During use, the green tire on the front roller path slides onto the rear roller path and stops sliding after hitting the centering pinch rollers. The four centering pinch rollers move relative to each other to center and clamp the green tire.

[0005] In the prior art, the position of the green tire can be limited by four centering pinch rollers, enabling the grasping mechanism to accurately grasp the green tire. However, since the green tire slides downward from a high place at a relatively fast speed and the centering pinch rollers are rigid components, the reaction impact force received by the green tire after hitting the centering pinch rollers is relatively large. Since the green tire has not been vulcanized yet, the combination between its internal components is not tight and its elasticity is also poor, making it prone to damage after being impacted. Summary of the Invention

[0006] The present invention provides a tire loading device for a vulcanizer to solve the technical problem that the green tire in the prior art is prone to damage due to the large impact force when sliding to the end.

[0007] To solve the above problems, the tire mounting device for vulcanizing machine provided by the present invention adopts the following technical solutions: A tire mounting device for vulcanizing machine, comprising a material receiving mechanism frame, a material receiving mechanism movably assembled on the material receiving mechanism frame, and a buffer positioning mechanism provided on the material receiving mechanism. The material receiving mechanism has a material receiving state with the left end higher than the right end and a waiting-to-be-grabbed state arranged horizontally. The material receiving mechanism includes a material receiving platform and a material receiving roller rotatably mounted on the material receiving platform. The buffer positioning mechanism is used to buffer the green tire and guide the green tire to a set position when the material receiving mechanism is in the material receiving state;

[0008] The buffer positioning mechanism includes a fixing plate fixedly arranged at the right end of the material receiving platform, two buffer units arranged at intervals in the front and rear directions, and a positioning driving unit. The buffer unit includes a stop block connecting rod penetrating the fixing plate to the right, a stop block fixedly arranged at the left end of the stop block connecting rod, a connecting plate arranged at the right end of the stop block connecting rod, and a stop block spring press-fitted between the stop block and the fixing plate. Inclined stop surfaces are provided on the opposite sides of the stop blocks of the two buffer units, and the distance between the two inclined stop surfaces gradually increases from left to right; The buffer unit further includes a sliding rod slidably assembled in the material receiving platform in the left-right direction, a locking rack fixedly arranged on the sliding rod, and a circle of locking grooves arranged on the outer periphery of one end of the material receiving roller. The right end of the sliding rod is connected to the connecting plate;

[0009] The positioning driving unit includes a telescopic member and a pushing plate. The telescopic member is used to push the connecting plate to move to the right through the pushing plate after the buffer unit buffers the green tire, so as to guide the green tire to the set position, and drive the locking rack to insert into the locking groove.

[0010] When the material receiving mechanism is in the material receiving state, the green tire slides downward. After hitting the stop block, the stop block compresses the stop block spring to buffer the green tire, avoiding rigid contact between the green tire and the stop block and damaging the green tire. After the green tire is buffered by the stop block, the telescopic member of the positioning driving unit extends out, and the connecting plate and the stop block are pushed to move through the pushing plate. When the stop block moves, the green tire will slide with the stop block until it reaches the set position. After the green tire reaches the set position, the locking rack inserts into the locking groove to lock the material receiving roller. During the process that the material receiving mechanism changes from the inclined material receiving state to the horizontal waiting-to-be-grabbed state, the material receiving roller will not rotate, and the friction force between the material receiving roller and the green tire is large, avoiding the sliding of the green tire and being able to maintain at the set position. In the present invention, the stop block and the stop block spring are used to buffer and unload the force of the green tire, avoiding damage to the green tire; the positioning driving unit is used to guide the green tire to the set position, making up for the disadvantages that the elastic moduli of the two stop block springs are different and fatigue damage is likely to occur during long-term use, ensuring that the green tire can be in the set position waiting to be grabbed.

[0011] As a further improvement, the buffer unit further includes a fixed block fixedly arranged on the sliding rod, and a friction block mounted on the fixed block through a damper. The fixed block, the damper, and the friction block correspond to each blanking roller one by one. The friction block has an arc surface for fitting with the outer peripheral surface of the end of the blanking roller. After the green tire impacts the stop block, the stop block drives the friction block to move and fit on the blanking roller to prevent the blanking roller from rotating. The buffer unit further includes an elastic pulling member, which is used to apply a force to the friction block after the green tire impacts the stop block, so that the friction block moves away from the blanking roller. After being impacted, the stop block can drive the fixed block to move quickly, and the fixed block applies an impact force to the damper. Due to the high speed, the damper presents a certain rigidity at this time, and can move as a whole and drive the friction block to move, so that the friction block fits with the blanking roller, preventing the blanking roller from rotating. The friction between the blanking roller and the green tire changes from rolling friction to sliding friction, increasing the friction force and reducing the sliding speed of the green tire. At the same time, the damper itself is compressed to ensure that the stop block can still slide down after the friction block contacts the blanking roller. The elastic pulling member can gradually pull the friction block after the stop block is no longer impacted, separating the friction block from the blanking roller and restoring the rotation of the blanking roller. When the subsequent positioning drive unit drives the stop block to move, the green tire can rotate on the blanking roller and further slide down.

[0012] As a further improvement, the damper is an air damper, including a first cylinder body connected to the fixed block and a second cylinder body connected to the friction block. The first cylinder body and the second cylinder body are buckled and communicated together, and damping holes communicating with the outside are provided on the first cylinder body and the fixed block.

[0013] As a further improvement, the elastic pulling member includes a friction block pull rod connected to the friction block and a friction block spring connected to the blanking platform. The friction block pull rod penetrates through the fixed block, and the friction block spring applies an elastic pulling force to the friction block through the friction block pull rod.

[0014] As a further improvement, the connecting plate has a convex portion protruding downward, and the top push plate is used to push the convex portion.

[0015] As a further improvement, a limiting rod is provided on the right side of the stop block, and the limiting rod is used to press against the fixed plate to limit the extreme position of the sliding of the stop block. By providing the limiting rod, it can be further ensured that the stop block and the green tire can slide to the set position, further improving the positioning accuracy.

[0016] As a further improvement, two rows of the blanking rollers on the blanking platform are arranged at intervals in the front-back direction, and both rows of blanking rollers are inclined downward from top to bottom in the front-back direction and toward the middle position of the blanking platform. The two rows of blanking rollers are inclined, which can guide the green tire to slide at the middle position of the blanking platform.

[0017] As a further improvement, the tire loading device for the vulcanizer also includes a blocking mechanism for pre-buffering the green tire, the blocking mechanism includes two blocking units arranged at intervals in front and behind, each blocking unit includes a rotating rod assembled on the material receiving mechanism frame around an axis extending up and down, a baffle fixed on the rotating rod, and an elastic reset member of the rotating rod, the baffle having a blocking position located on the green tire sliding path to block the green tire, and also having an avoidance position to avoid the green tire after being hit by the green tire, and the elastic reset member of the rotating rod is used to drive the rotating rod to rotate to the blocking position. The blocking mechanism can pre-buffer the green tire, thereby reducing the sliding speed of the green tire.

[0018] As a further improvement, the material receiving mechanism includes a guide frame located on the left side and a hinge seat slidably mounted on the frame of the material receiving mechanism along the left and right directions, the left end of the material receiving platform is provided with a first hinge shaft slidably mounted on the guide frame along the up and down directions, and the right end is provided with a second hinge shaft hinged on the hinge seat; the material receiving mechanism also includes a lifting drive structure for driving the left end of the material receiving platform to move up and down, the lifting drive structure includes a connecting seat connected to the first hinge shaft, the connecting seat is provided with two ear plates arranged at intervals along the left and right directions, and one side of the rotating rod is provided with a guide plate; when the baffle is in the blocking position and the material receiving mechanism is in the material receiving state, the interval between the guide plate and the two ear plates is vertically opposite and the two ear plates are located above the guide plate; when the baffle is in the avoidance position, the interval between the guide plate and the two ear plates is staggered; when the baffle is restored to the blocking position and the left end of the material receiving mechanism slides downward, the guide plate enters between the two ear plates. .

[0019] As a further improvement, a rotating roller is provided on the baffle.

[0020] The beneficial effects are:

[0021] 1. When the material receiving mechanism is in the material receiving state, the raw tire slides downward and hits the block. The block compresses the block spring to buffer the raw tire, thereby preventing the raw tire from being damaged by rigid contact with the block. After the raw tire is buffered by the block, the telescopic member of the positioning drive unit extends again, and the connecting plate and the block are pushed to move by the push plate. When the block moves, the raw tire slides with the block until it reaches the set position. After the raw tire reaches the set position, the locking rack is inserted into the lock groove to lock the material receiving roller. During the process of the material receiving mechanism changing from the inclined material receiving state to the horizontal state to be grasped, the material receiving roller will not rotate. The friction between the material receiving roller and the raw tire is large, which prevents the raw tire from sliding and can be kept in the set position. In the present invention, the green tire is buffered and unloaded by the block and the block spring to avoid damage to the green tire; the green tire is guided to the set position by the positioning drive unit, which makes up for the disadvantages that the elastic modulus of the two block springs is different and fatigue damage is easy to occur when used for a long time, and ensures that the green tire can be in the set position waiting to be grasped.

[0022] 2. After the stopper is impacted, it can drive the fixed block to move quickly. The fixed block exerts an impact force on the damper. Due to the relatively high speed, the damper presents a certain rigidity at this time, and can move as a whole and drive the friction block to move, so that the friction block fits with the material receiving roller, preventing the material receiving roller from rotating. The friction between the material receiving roller and the green tire changes from rolling friction to sliding friction, increasing the friction force and reducing the sliding speed of the green tire. At the same time, the damper itself is compressed to ensure that the stopper can still slide down after the friction block contacts the material receiving roller. The elastic pulling member can gradually pull the friction block after the stopper is no longer impacted, separating the friction block from the material receiving roller and allowing the material receiving roller to resume rotation. When the positioning drive unit drives the stopper to move subsequently, the green tire can rotate on the material receiving roller and further slide down.

[0023] 3. By setting the limit rod, it can further ensure that the stopper and the green tire can slide to the set position, further improving the positioning accuracy.

[0024] 4. The two rows of material receiving rollers are arranged obliquely, which can guide the green tire to slide in the middle position of the material receiving platform.

[0025] 5. The blocking mechanism can pre-buffer the green tire, thereby reducing the sliding speed of the green tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram when the tire loading device for vulcanizer is in use;

[0027] Figure 2 It is a top view of the conveying mechanism in the tire loading device for vulcanizer;

[0028] Figure 3 It is a structural schematic diagram of the tire loading device for vulcanizer;

[0029] Figure 4 It is Figure 3 The enlarged view of part A in

[0030] Figure 5 It is a top view when the material receiving mechanism is in the state of waiting to grab;

[0031] Figure 6 It is a front view when the material receiving mechanism is in the material receiving state;

[0032] Figure 7 It is a side view when the material receiving mechanism is in the material receiving state;

[0033] Figure 8 It is a three-dimensional view of the material receiving platform;

[0034] Figure 9 It is a front view of the material receiving platform;

[0035] Figure 10 It is a bottom view of the material receiving platform;

[0036] Figure 11 Front view of the hinge seat;

[0037] Figure 12 Front view of the material receiving roller;

[0038] Figure 13 Cross-sectional view showing the relative positions of the fixing block, air damper, and friction block in the tire mounting device for vulcanizer;

[0039] Figure 14 For Figure 13 Enlarged view at position B in

[0040] Figure 15 Structural schematic diagram of the buffer unit;

[0041] Figure 16 For Figure 15 Enlarged view at position C in

[0042] Figure 17 Schematic diagram of the fixing block, air damper, friction block, friction block pull rod, and friction block spring combined together;

[0043] Figure 18 Structural schematic diagram of the blocking unit.

[0044] Explanation of reference numerals:

[0045] 101, conveying mechanism frame; 102, material receiving mechanism frame;

[0046] 200, conveying mechanism; 201, conveying platform; 202, conveying roller;

[0047] 300, material receiving mechanism; 301, material receiving platform; 302, material receiving roller; 303, hinge seat; 304, guide frame; 305, first hinge shaft; 306, second hinge shaft; 307, slide rod perforation; 308, receiving groove; 309, hinge plate; 310, guide groove; 311, first oil cylinder; 312, connecting seat; 313, ear plate; 314, bottom plate; 315, top plate;

[0048] 401. Fixed plate; 402. Stop block; 403. Stop block connecting rod; 404. Stop block spring; 405. Connecting plate; 406. Slide bar; 407. Fixed block; 408. Air damper; 409. Friction block; 410. Friction block pull rod; 411. Friction block spring; 412. Locking rack; 413. Lock groove; 414. Inclined stop surface; 415. Limit rod; 416. Protrusion; 417. First cylinder; 418. Second cylinder; 419. Damping hole; 420. Check valve; 421. Arc surface; 422. Second oil cylinder; 423. Thrust plate; 424. Bottom mounting sleeve; 425. Top mounting seat; 426. Rotating rod; 427. Guide plate; 428. Baffle; 429. Rotating roller

[0049] 500. Manipulator

[0050] 600. Tire vulcanizer

[0051] 700. Green tire Detailed implementation manners

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention

[0053] An embodiment of the tire loading device for a vulcanizer provided by the present invention

[0054] As Figures 1 to 18 shown, the tire loading device for a vulcanizer (hereinafter simply referred to as the loading device) includes a bottom base, a conveying mechanism 200, a material receiving mechanism 300, a buffering and positioning mechanism, and a blocking mechanism. The conveying mechanism 200, the material receiving mechanism 300, and the blocking mechanism are all installed on the bottom base, and the buffering and positioning mechanism is installed on the material receiving mechanism 300

[0055] The bottom base includes a conveying mechanism frame 101 and a material receiving mechanism frame 102. For the convenience of description, it is defined here that the conveying mechanism frame 101 and the material receiving mechanism frame 102 are arranged in sequence along the left - right direction, and the conveying mechanism frame 101 is located on the left side of the material receiving mechanism frame 102; the horizontal direction perpendicular to the left - right direction is the front - back direction. The conveying mechanism 200 is installed on the conveying mechanism frame 101, and the material receiving mechanism 300 is installed on the material receiving mechanism frame 102

[0056] As Figure 2As shown, the conveying mechanism 200 includes a conveying platform 201 and two rows of conveying rollers 202 installed on the conveying platform 201. The two rows of conveying rollers 202 are arranged at intervals in the front-rear direction, and the conveying platform 201 is arranged with the left side higher than the right side as a whole.

[0057] As Figures 3 to 17 shown, the blank receiving mechanism 300 includes a blank receiving platform 301, blank receiving rollers 302, hinge seats 303, a guiding frame 304 and a lifting driving structure. On the front and rear sides of the left end of the blank receiving platform 301, a first hinge shaft 305 is fixedly installed respectively, and on the front and rear sides of the right end, a second hinge shaft 306 is fixedly installed respectively. There are two rows of blank receiving rollers 302 arranged symmetrically in the front-rear direction, and each row of blank receiving rollers 302 has a plurality of them arranged at intervals in the left-right direction. The blank receiving rollers 302 can rotate around their own axes; each row of blank receiving rollers 302 is arranged obliquely from top to bottom and towards the middle position of the blank receiving platform 301. The two rows of blank receiving rollers 302 can guide the green tire 700 in the front-rear direction, so that the green tire 700 slides close to the middle position of the blank receiving platform 301 when sliding.

[0058] Two slide bar through holes 307 are formed in the blank receiving platform 301. The slide bar through holes 307 extend in the left-right direction, and the right end extends to the right end face of the blank receiving platform 301. On the bottom surface of the blank receiving platform 301, accommodation grooves 308 are also formed corresponding to each blank receiving roller 302. The slide bar through holes 307 penetrate through the accommodation grooves 308, and the ends of the blank receiving rollers 302 all penetrate into the corresponding accommodation grooves 308.

[0059] The hinge seat 303 is slidably assembled on the blank receiving mechanism frame 102 in the left-right direction, and includes a bottom plate 314, two top plates 315 and two hinge plates 309. The bottom plate 314 is located below the blank receiving mechanism frame 102, the top plates 315 are located above the bottom plate 314, the hinge plates 309 are fixed on the top plates 315, and the second hinge shaft 306 is hinged on the hinge plates 309.

[0060] There are two guiding frames 304. The two guiding frames 304 are respectively fixed on the front and rear sides of the left end of the blank receiving mechanism frame 102. The guiding frames 304 are provided with guiding grooves 310 extending up and down, and the guiding grooves 310 penetrate through the guiding frames 304 in the front-rear direction. The first hinge shaft 305 penetrates through the guiding grooves 310.

[0061] The lifting drive structure is used to drive the first hinge shaft 305 to lift, thereby driving the left end of the material receiving platform 301 to lift. When the left end of the material receiving platform 301 descends, the right end of the material receiving platform 301 slides to the right; when the left end of the material receiving platform 301 ascends, the right end of the material receiving platform 301 slides to the left. The lifting drive structure includes a first oil cylinder 311, a connecting seat 312, and an ear plate 313. The cylinder body of the first oil cylinder 311 is fixed on the material receiving mechanism frame 102, the connecting seat 312 is fixed on the piston rod of the first oil cylinder 311, and the first hinge shaft 305 passes through the guide groove 310 and then penetrates into the connecting seat 312. There are two ear plates 313, the two ear plates 313 are parallel to each other and arranged at intervals in the left-right direction, and the ear plates 313 are fixed on the side surface of the connecting seat 312 away from the material receiving platform 301.

[0062] The function of the buffering and positioning mechanism is to buffer the green tire 700 and then guide the green tire 700 to a specified position, waiting for the manipulator 500 to grab it.

[0063] The buffering and positioning mechanism includes a fixing plate 401, a buffering unit, and a positioning drive unit. Specifically, the fixing plate 401 is fixed on the top of the right end of the material receiving platform 301.

[0064] There are two buffering units arranged at intervals in the front-rear direction, and the structures of the two buffering units are the same. The buffering unit includes a stopper 402, a stopper connecting rod 403, a stopper spring 404, a connecting plate 405, a sliding rod 406, a fixing block 407, a damper, a friction block 409, an elastic pulling member, a locking rack 412, and a locking groove 413.

[0065] Specifically, the stopper 402 is used to directly contact the green tire 700. Inclined stop surfaces 414 are provided on the opposite sides of the two stoppers 402, and the distance between the two inclined stop surfaces 414 gradually becomes smaller from left to right. The green tire 700 can slide between the two stoppers 402 and is supported by the inclined stop surfaces 414 of the two stoppers, and the two inclined stop surfaces 414 can guide the front and rear positions of the green tire 700. The stopper connecting rod 403 is fixed on the right side of the stopper 402, and the right end of the stopper connecting rod 403 penetrates through the fixing plate 401 and extends to the right side of the fixing plate 401. The stopper spring 404 here is a compression spring. The stopper spring 404 is sleeved on the outside of the stopper connecting rod 403, and the stopper spring 404 is pressed between the stopper 402 and the fixing plate 401; when the stopper 402 is impacted by the green tire 700 to the right, the stopper 402 moves to the right and compresses the stopper spring 404 to buffer the impact of the green tire 700. A limit rod 415 is fixed to the right end of the stopper 402. The function of the limit rod 415 is to limit the extreme position of the stopper 402. When the right end of the limit rod 415 presses against the fixing plate 401, the stopper 402 can no longer move to the right, and the stopper 402 reaches its position.

[0066] The connecting plate 405 is fixedly installed at the right end of the stopper link 403, and the connecting plate 405 extends downward. The sliding rod 406 is slidably assembled in the sliding rod perforation 307 of the material receiving platform 301 in the left-right direction. The right end of the sliding rod 406 is connected to the connecting plate 405, so that the connecting plate 405 can drive the sliding rod 406 to move left and right. Among them, a protrusion 416 is provided at the bottom of the connecting plate 405, and the protrusion 416 is used to bear the pushing of the positioning drive unit.

[0067] The number of the fixing blocks 407, dampers, friction blocks 409, elastic pulling components, locking racks 412, and locking grooves 413 is the same as and corresponds one by one to the number of the material receiving rollers 302 in the same row. The fixing blocks 407, dampers, and friction blocks 409 are arranged in sequence from left to right. The fixing blocks 407 are fixedly installed on the sliding rod 406, and the right end of the fixing block 407 is connected to the friction block 409 through a damper. The damper here is an air damper 408, which includes a first cylinder body 417 and a second cylinder body 418 that are adaptively inserted together. Specifically, one end of the first cylinder body 417 with an opening penetrates into the second cylinder body 418. The first cylinder body 417 is fixed on the fixing block 407, and damping holes 419 for air passage are provided at the left end of the first cylinder body 417 and on the fixing block 407. The second cylinder body 418 is fixed on the friction block 409. The first cylinder body 417 is inserted into the second cylinder body 418 to jointly enclose the chamber of the air damper 408. A one-way valve 420 is installed on the second cylinder body 418. The one-way valve 420 can allow external air to enter the chamber of the air damper 408, and the gas in the air damper 408 cannot be discharged through the one-way valve 420. In other embodiments, the damper can also be a hydraulic damper.

[0068] The friction block 409 has an arc surface 421, which can fit on the outer peripheral surface of the material receiving roller 302 to lock the material receiving roller 302 and prevent the material receiving roller 302 from rotating.

[0069] The elastic pulling component includes a friction block pull rod 410 and a friction block spring 411. There are two friction block pull rods 410. The right ends of the two friction block pull rods 410 are fixed on the friction block 409, and the left ends penetrate through the fixing block 407. The left ends of the two friction block pull rods 410 are connected by a connecting block. One end of the friction block spring 411 is connected to the connecting block, and the other end is connected to the material receiving platform 301. The friction block spring 411 here is a tension spring, which applies a pulling force to the friction block 409 through the friction block pull rod 410. In other embodiments, there can be two friction block springs 411, which are directly connected to the friction block pull rod 410; or, there is only one friction block pull rod 410, and the friction block spring 411 is directly connected to the friction block pull rod 410.

[0070] The locking rack 412 is fixedly installed on the sliding rod 406, and a plug tooth is provided on the right side of the locking rack 412. The locking groove 413 is opened at the end of the material receiving roller 302, and a circle of locking grooves 413 is evenly distributed around the material receiving roller 302. When the plug tooth of the locking rack 412 is inserted into the locking groove 413, the material receiving roller 302 cannot rotate around its own axis.

[0071] The positioning drive unit includes a telescopic member and a pushing plate 423. Here, the telescopic member is the second oil cylinder 422. The second oil cylinder 422 is fixed to the bottom of the material receiving platform 301, and the pushing plate 423 is fixed to the piston rod of the second oil cylinder 422; the pushing plate 423 is located on the left side of the connecting plate 405, and the pushing plate 423 extends in the front-rear direction. When the second oil cylinder 422 extends to the right, it pushes the protrusions 416 at the bottom of the two connecting plates 405 through the pushing plate 423, so that the stopper 402 moves further to the right. In other embodiments, the telescopic member can also be an electric push rod.

[0072] As Figures 1 to 4 and Figure 18 shown, the blocking mechanism is located on the left side of the material receiving mechanism 300, and its function is to pre-buffer the green tire 700 entering the material receiving mechanism 300.

[0073] The blocking mechanism includes two blocking units symmetrically distributed on the material receiving mechanism frame 102 in the front-rear direction, and the structures of the two blocking units are the same. The blocking unit includes a bottom mounting sleeve 424, a top mounting seat 425, a rotating rod 426, a torsion spring, a guide plate 427, a baffle 428, and a rotating roller 429. The bottom mounting sleeve 424 is fixedly installed on the material receiving mechanism frame 102, the top mounting seat 425 is fixedly installed on the guide frame 304, and a rotating rod through hole for the rotating rod 426 to penetrate up and down is opened on the top mounting seat 425. The bottom of the rotating rod 426 is inserted into the bottom mounting sleeve 424, and the top extends upward through the top mounting seat 425. The guide plate 427 is fixedly installed on the outer side of the rotating rod 426, and the guide plate 427 extends up and down. The torsion spring is fixed between the bottom of the rotating rod 426 and the bottom mounting sleeve 424 to apply an elastic force to the rotating rod 426. The baffle 428 is fixedly installed on the top of the rotating rod 426, and the rotating roller 429 is rotatably installed on the baffle 428 around an axis extending up and down, and a plurality of rotating rollers 429 are arranged side by side.

[0074] When the baffle 428 is not affected by an external force, the torsion spring applies an elastic force to the rotating rod 426, so that the baffle 428 extends left and right as a whole and is on the sliding path of the green tire 700. At this time, the baffle 428 is in the blocking position. At this time, the connecting seat 312 of the lifting drive structure is located above the guide plate 427, and the intervals between the guide plate 427 and the two ear plates 313 on the connecting seat 312 are vertically aligned. When the two ear plates 313 are located above the guide plate 427, the two ear plates 313 will not limit the rotation of the guide plate 427 following the rotating rod 426.

[0075] When the green tire 700 slides down, the baffle 428 is pushed, so that the baffle 428, the rotating rod 426, and the guide plate 427 rotate. The rotation of the baffle 428 allows the green tire 700 to slide downward. At this time, the baffle 428 is in the avoidance position, the guide plate 427 and the interval between the two ear plates 313 are staggered, the connecting seat 312 cannot move downward, and the material receiving platform 301 remains in an inclined state. After the green tire 700 passes through the baffle 428, the baffle 428, the rotating rod 426, and the guide plate 427 are reset under the action of the torsion spring, and the baffle 428 rotates again to the sliding path of the next green tire 700; the guide plate 427 is aligned with the interval between the two ear plates 313 again, and the connecting seat 312 can move downward under the drive of the first oil cylinder 311, so that the material receiving platform 301 is gradually leveled. After the connecting seat 312 moves downward, the two ear plates 313 move to the two sides of the guide plate 427. At this time, even if the next green tire 700 pushes the baffle plate 428, the rotating rod 426 and the guide plate 427 will not rotate.

[0076] Usage process: In the initial state, the baffle 428 is in the blocking position, the material receiving platform 301 is arranged tilted with the left side higher than the right side, and the friction block 409 is located on the left side of the corresponding material receiving roller 302, and the friction block 409 does not contact the material receiving roller 302. When the raw tire 700 slides down from the conveying mechanism 200 to the material receiving mechanism 300, it first hits the baffle 428 and causes the baffle 428 to rotate to the avoidance position. When the baffle 428 rotates, the torsion spring is stressed and stores energy, and the raw tire 700 is pre-buffered. Then the raw tire 700 slides on the material receiving mechanism 300, and under the tilted guidance of the two rows of material receiving rollers 302, the raw tire 700 slides downward in the front-to-back direction near the middle position of the material receiving platform 301. Then, the stopper 402 is hit, and the stopper 402 slides to the right and compresses the stopper spring 404, so as to buffer the green tire 700. While the stopper 402 slides to the right, the friction block 409 is driven to move to the right through the stopper connecting rod 403, the connecting plate 405, the sliding rod 406, the fixing block 407, and the air damper 408, so that the friction block 409 is attached to the outer peripheral surface of the material receiving roller 302, and the material receiving roller 302 is prevented from rotating, thereby increasing the sliding friction of the green tire 700 and generating resistance to the sliding of the green tire 700. It should be noted that, since the green tire 700 hits the stopper 402 at a high speed, the air in the chamber of the air damper 408 has no time to be discharged from the damping hole 419, and the air damper 408 is rigid at this time, and the air damper 408 is subjected to a large impact force to the right, and can overcome the elastic force of the friction block spring 411 and move to the right as a whole; the air damper 408 is compressed while moving to the right as a whole.

[0077] After the stopper 402 buffers the green tire 700, the green tire 700 is supported on the stopper 402. During actual operation, after the green tire 700 hits the stopper 402 for the first time, it will inevitably bounce one or more times, but will eventually still fall onto the stopper 402. At this time, the gas in the air damper 408 is gradually released outward through the damping hole 419, and the friction block spring 411 applies a pulling force to the left on the friction block 409, causing the friction block 409 to separate from the material receiving roller 302, and the material receiving roller 302 can rotate freely.

[0078] Subsequently, the second oil cylinder 422 extends to the right and continues to push the stopper 402 downward. After the stopper 402 moves downward, the green tire 700 moves downward accordingly until the limit rod 415 contacts the fixed plate 401, and both the stopper 402 and the green tire 700 are in the set positions. When the green tire 700 slides into place, the insertion teeth of the locking rack 412 are inserted into the locking groove 413 to prevent the material receiving roller 302 from rotating when the subsequent material receiving platform 301 is gradually leveled. While the positioning drive unit is working, or after the green tire 700 slides to the set position, the lifting drive structure works to gradually change the material receiving platform 301 into a horizontally arranged state, and the manipulator 500 grabs the green tire 700 and transfers it to the tire vulcanizer 600. It should be noted that even if the positioning drive unit and the lifting drive structure work simultaneously, before the stopper 402 moves into place, the material receiving platform 301 is still in an inclined state, enabling the green tire 700 to slide downward.

[0079] During the process of the stopper 402 continuing to move downward, the moving speed of the positioning drive unit is relatively slow, the volume change of the middle chamber of the air damper 408 is relatively slow, the air in the chamber can be discharged through the damping hole 419, and coupled with the pulling effect of the friction block spring 411, the friction block 409 can be kept separated from the material receiving roller 302.

[0080] In this embodiment, a limit rod 415 is fixed on the right side of the stopper 402, and the cooperation between the limit rod 415 and the fixed plate 401 is used to limit the downward limit position of the stopper 402. In other embodiments, the limit rod 415 can be cancelled, and only the telescopic stroke of the telescopic member in the positioning drive unit is relied on to limit the downward limit of the stopper 402.

[0081] In this embodiment, by setting a damper, a friction block 409, and an elastic pulling member, after the stopper 402 is impacted, the friction block 409 locks the material receiving roller 302. In other embodiments, the damper, the friction block 409, and the elastic pulling member can all be cancelled, and only the stopper 402 is relied on to decelerate and buffer the green tire 700.

[0082] In addition, in the description of this specification, the meaning of "a plurality of" is at least two, such as two, three or more, etc., unless otherwise specifically and clearly defined.

Claims

1. A tire loading device for a vulcanizer, comprising a receiving mechanism frame body, a receiving mechanism movably assembled on the receiving mechanism frame body, and a buffer positioning mechanism provided on the receiving mechanism. The receiving mechanism has a receiving state with a higher left and a lower right and a to-be-gripped state arranged horizontally. The receiving mechanism includes a receiving platform and a receiving roller rotatably installed on the receiving platform, and is characterized in that, The buffer positioning mechanism is used to buffer the raw tire and guide the raw tire to a set position when the material receiving mechanism is in a material receiving state; the buffer positioning mechanism comprises a fixed plate fixedly arranged at the right end of the material receiving platform, two buffer units arranged at intervals in the front and rear, and a positioning drive unit, the buffer unit comprises a block connecting rod penetrating the fixed plate to the right, a block fixedly arranged at the left end of the block connecting rod, a connecting plate arranged at the right end of the block connecting rod, and a block spring pressed between the block and the fixed plate, the blocks of the two buffer units are provided with inclined stop surfaces on opposite sides, and the spacing between the two inclined stop surfaces gradually decreases from left to right; the buffer unit also comprises a sliding rod slidably assembled in the material receiving platform along the left and right directions, a locking rack fixedly arranged on the sliding rod, and a circle of locking grooves arranged on the outer periphery of one end of the material receiving roller, and the right end of the sliding rod is connected to the connecting plate; the positioning drive unit comprises a telescopic member and a pushing plate, and the telescopic member is used to push the connecting plate to move rightward through the pushing plate after the buffer unit buffers the raw tire, thereby guiding the raw tire to the set position, and driving the locking rack to insert into the locking groove.

2. The tire mounting device for a vulcanizer according to claim 1, characterized in that, The buffer unit also includes a fixed block fixed on the slide rod and a friction block installed on the fixed block through a damper. The fixed block, the damper and the friction block correspond to each receiving roller one by one. The friction block has an arc surface for fitting with the outer peripheral surface of the end of the receiving roller. After the raw tire hits the block, the block drives the friction block to move and fit on the receiving roller to prevent the receiving roller from rotating. The buffer unit also includes an elastic pulling component, which is used to apply force to the friction block after the raw tire hits the block to keep the friction block away from the receiving roller.

3. The tire mounting device for vulcanizing machine according to claim 2, characterized in that, The damper is an air damper, comprising a first cylinder connected to a fixed block and a second cylinder connected to a friction block. The first cylinder and the second cylinder are buckled and connected together. The first cylinder and the fixed block are provided with damping holes connected to the outside.

4. The tire mounting device for vulcanizer according to claim 2, characterized in that, The elastic pulling component comprises a friction block pull rod connected to the friction block and a friction block spring connected to the material receiving platform. The friction block pull rod penetrates the fixed block, and the friction block spring applies an elastic pulling force to the friction block through the friction block pull rod.

5. The tire mounting device for vulcanizer according to any one of claims 1-4, characterized in that The connecting plate has a protrusion protruding downward, and the pushing plate is used to push the protrusion.

6. The tire mounting device for a vulcanizer according to any one of claims 1-4, characterized in that A limit rod is provided on the right side of the stopper, and the limit rod is used to press on the fixed plate to limit the extreme position of the sliding of the stopper.

7. The tire mounting device for a vulcanizer according to any one of claims 1-4, characterized in that The material receiving rollers on the material receiving platform are arranged in two rows at intervals along the front-to-back direction, and both rows of material receiving rollers are arranged tilted from top to bottom in the front-to-back direction and toward the middle position of the material receiving platform.

8. The tire mounting device for a vulcanizer according to any one of claims 1-4, characterized in that, The tire loading device for the vulcanizer also includes a blocking mechanism for pre-buffering the green tire, the blocking mechanism includes two blocking units arranged at intervals in the front and rear, each blocking unit includes a rotating rod rotatably assembled on a material receiving mechanism frame around an axis extending up and down, a baffle fixed on the rotating rod, and an elastic reset member of the rotating rod, the baffle having a blocking position located on the sliding path of the green tire to block the green tire, and also having an avoidance position for avoiding the green tire after being hit by the green tire, and the elastic reset member of the rotating rod is used to drive the rotating rod to rotate to the blocking position.

9. The tire mounting device for a vulcanizer according to claim 8, wherein, The material receiving mechanism includes a guide frame located on the left side and a hinge seat slidably assembled on the material receiving mechanism frame along the left and right directions. The left end of the material receiving platform is provided with a first hinge shaft slidably assembled on the guide frame along the up and down directions, and the right end is provided with a second hinge shaft hinged on the hinge seat; the material receiving mechanism also includes a lifting drive structure that drives the left end of the material receiving platform to move up and down, and the lifting drive structure includes a connecting seat connected to the first hinge shaft. The connecting seat is provided with two ear plates arranged at intervals along the left and right directions, and a guide plate is provided on one side of the rotating rod; when the baffle is in the blocking position and the material receiving mechanism is in the material receiving state, the interval between the guide plate and the two ear plates is directly opposite to each other up and down and the two ear plates are located above the guide plate; when the baffle is in the avoidance position, the interval between the guide plate and the two ear plates is staggered; when the baffle returns to the blocking position and the left end of the material receiving mechanism slides downward, the guide plate enters between the two ear plates.

10. The tire mounting device for vulcanizer according to claim 8, characterized in that, The baffle is provided with a rotating roller.

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