Pre-vulcanization trimming equipment for engineering machinery retreaded tire

Abstract

The utility model relates to the field of tires, in particular to prevulcanization trimming equipment for engineering machinery retreaded tires, which comprises a conveying mechanism, a correcting mechanism and a trimming mechanism are sequentially arranged on the conveying mechanism from left to right, and a waste collecting box is arranged below the trimming mechanism. The trimming mechanism comprises two H-shaped supports arranged in a spaced mode and a connecting plate connected between the H-shaped supports, a plurality of pressing assemblies are connected to the connecting plate at intervals, and movable grooves are symmetrically formed in the H-shaped supports respectively. To-be-trimmed tread rubber is conveyed to the position below the H-shaped support through the conveying mechanism, at the moment, a telescopic rod assembly is matched to drive U-shaped plates to move oppositely, the distance between the cutting device and the grinding device is synchronously adjusted, it is ensured that the cutting device and the grinding device can be tightly attached to the edge of the tread rubber, and the trimming effect is improved; and then the edge of the tread rubber is trimmed and polished in sequence, burrs and flaws are removed, and excessive loss is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tire, in particular to a kind of pre-vulcanization trimming equipment of engineering machinery retreaded tire. BACKGROUND

[0002] Tire retreading refers to the repair and regeneration treatment of the tire that has been worn or damaged due to other reasons and lost its performance, to restore its original performance and extend its service life. This processing aims to reduce the negative impact of waste tires on the environment, save resources and reduce energy consumption. Tire retreading not only extends the service life of the tire, but also reduces the demand for new tires, thereby reducing energy consumption and carbon emissions in the tire production process.

[0003] During tire retreading, different retreading processes can be taken according to the damage degree of the tire, such as top-up, shoulder-up or full-up, etc. Before retreading, the tire needs to be comprehensively detected to determine whether it is suitable for retreading. During retreading, the original pattern and worn part of the tire need to be removed, and then repaired and new tread rubber is applied. The tread rubber is obtained by placing the mixed rubber into the corresponding tire pattern mold and heating. Therefore, the two edges of the tread rubber after production have uneven burrs. After polishing, a layer of special adhesive is applied to the surface of the tire to tightly bond the new tread with the tire body, and then it is placed in the mold for high-temperature vulcanization to make the new tread and tire body chemically react to obtain a complete retreaded tire.

[0004] For the above-mentioned related technology, the inventor found that during the production of the tread rubber, uneven burrs are often formed on the edge due to the overflow of the mold. These burrs not only affect the appearance of the retreaded tire, but also reduce its adhesion with the tire body. Therefore, trimming and polishing are needed to remove these burrs and defects. During the trimming process of the tread rubber, trimming is usually followed by polishing. This operation not only increases the operation cost, but also easily causes excessive loss during polishing, resulting in material waste and reducing the overall adhesion of the tread rubber with the tire body. In addition, since the formed tread rubber is long, it is easy to deviate during conveying on the conveying device. This deviation not only affects the consistency and precision of the trimming of the tread rubber, but also may cause deviation of the trimming angle, thereby affecting the overall quality and performance of the retreaded tire. UTILITY MODEL CONTENTS

[0005] The technical problem solved by the utility model is to provide a pre-vulcanization trimming equipment for engineering machinery retreaded tire, which facilitates simultaneous trimming and polishing of the tread rubber, prevents excessive loss during polishing, improves the overall adhesion of the tread rubber with the tire body, and prevents trimming deviation during conveying of the tread rubber, thereby improving the precision of trimming.

[0006] To solve the above technical problems, the utility model adopts one technical scheme, which provides a pre-vulcanization trimming equipment for engineering machinery retreaded tire, which comprises a conveying mechanism, a correction mechanism and a trimming mechanism are sequentially arranged on the conveying mechanism from left to right, a waste collecting box is arranged below the trimming mechanism,

[0007] The trimming mechanism comprises two H-shaped supports and a connecting plate connected between the two H-shaped supports, a plurality of pressing assemblies are connected on the connecting plate at intervals, a movable groove is symmetrically formed on each of the H-shaped supports, a U-shaped plate is symmetrically arranged, both ends of the U-shaped plate are slidably connected in the movable grooves, a cutting device is connected to one end of the U-shaped plate, and a polishing device is connected to the other end of the U-shaped plate, and a telescopic rod assembly is further arranged, the telescopic rod assembly is suitable for driving the U-shaped plate to move towards each other and move away from each other when the telescopic rod assembly is telescoped.

[0008] The cutting device comprises a cutting wheel rotatably connected to one side of the upper end of the U-shaped plate, a driving motor is mounted on the other side of the upper end of the U-shaped plate, and the output shaft of the driving motor is connected to the cutting wheel.

[0009] The polishing device comprises a connecting block connected to the U-shaped plate, a polishing wheel rotatably connected to the bottom of the connecting block, and a driving motor connected to the top of the connecting block, wherein the output shaft of the driving motor is connected to the polishing wheel, and the cutting wheel and the polishing wheel are located on the same plane away from the telescopic rod assembly.

[0010] By adopting the above technical scheme, the conveying mechanism is responsible for conveying the tire rubber to be trimmed from one end to the other end, and the tire rubber is subjected to correction, trimming and other treatments, the correction mechanism corrects the tire rubber during the conveying process to prevent the tire rubber from deviating and ensure that the tire rubber maintains a stable position and angle during the trimming process, thereby improving the consistency and precision of trimming, the tire rubber after correction is moved to the lower side of the H-shaped support, the telescopic rod assembly drives the U-shaped plate to move towards each other, the distance between the cutting device and the polishing device is adjusted to ensure that the cutting device and the polishing device can closely fit the edge of the tire rubber, thereby improving the trimming effect, and then the edge of the tire rubber is trimmed and polished in sequence to remove burrs and defects, and the trimmed tire rubber is dropped into the waste collecting box, and at the same time, the pressing assembly presses the tire rubber on the conveying mechanism during the trimming process to prevent the tire rubber from moving or deforming, thereby improving the accuracy and stability of trimming and ensuring the trimming quality.

[0011] In a preferred example, the utility model can be further configured as follows: the pressing assembly comprises a U-shaped seat and a pressing roller rotatably connected to the inner side of the U-shaped seat, limit rods are connected to the top of the U-shaped seat on both sides, the limit rods are arranged on the connecting plate, springs are sleeved on the limit rods, one end of the spring is in abutting connection with the connecting plate, and the other end of the spring is in abutting connection with one end of the limit rod.

[0012] By adopting the above technical scheme, the conveying mechanism conveys the corrected tread rubber to the trimming work area, at this time the compression roller is in contact with the tread rubber, and the compression roller rotates by itself and gives appropriate pressure through the spring to compress the tread rubber on the conveying mechanism, thereby improving the accuracy and stability of trimming, preventing the tread rubber from deviating from the predetermined position due to vibration or external force during trimming, and at the same time, when the thickness or hardness of the tread rubber changes, the spring can automatically adjust the compression force, ensuring that the compression roller is always in close contact with the tread rubber, improving the adaptability and stability of the compression assembly.

[0013] In a preferred example, the conveying mechanism further comprises a support, and an electric roller is rotatably connected to the inner side of the support.

[0014] By adopting the above technical scheme, the support is used to install and fix the electric roller, ensuring the stability and reliability of the overall structure of the conveying mechanism, and the electric roller drives the tread rubber to move on the conveying mechanism by rotating.

[0015] In a preferred example, the correction mechanism further comprises a U-shaped frame, and guide assemblies are symmetrically arranged at an inclination, the guide assemblies comprise driving wheels, driven wheels and guide belts, the guide belts are meshed and connected with the driving wheels and the driven wheels respectively, the driving wheels are rotatably connected to the bottom of the U-shaped frame, the driven wheels are rotatably connected to the support, a driving motor three is connected to the top of the U-shaped frame, the output shaft of the driving motor three is connected with the driving wheels, and the distance between the driving wheels is greater than the distance between the driven wheels.

[0016] By adopting the above technical scheme, the guide and correction of the tread rubber are realized by the guide assemblies arranged at an inclination and symmetrically, ensuring that the tread rubber maintains the correct position and posture during conveying, preventing it from deviating from the predetermined path or deforming, the driving motor three drives the driving wheels to rotate and synchronously drives the driven wheels to rotate, so that the guide belts are in contact with the side edges of the tread rubber, ensuring that the tread rubber is always subjected to uniform guiding and correcting force during conveying, thereby guiding and correcting the tread rubber.

[0017] In a preferred example, the telescopic rod assembly further comprises a mounting plate connected between the H-shaped supports, an electric push rod is connected to the mounting plate, and the extending end of the electric push rod is connected with the U-shaped plate.

[0018] By adopting the above technical scheme, when the calibrated tread rubber is conveyed to the trimming area, the electric push rod drives the U-shaped plate to move towards each other through telescopic movement, thereby adjusting the distance between the U-shaped plates, ensuring that the cutting device and the polishing device can closely fit the edges of the tread rubber, and improving the accuracy and stability of trimming.

[0019] In a preferred embodiment, the present invention can be further configured such that: the top of the H-shaped bracket is symmetrically connected with guide rails, and sliders are slidably connected to the guide rails, and the sliders are respectively connected to the corresponding U-shaped plates.

[0020] By adopting the above technical solution, when the electric push rod extends, the slider slides along the guide rail and pushes the U-shaped plate to move in opposite directions; when the electric push rod retracts, the slider slides in the opposite direction along the guide rail and drives the U-shaped plate to move in the opposite direction. This not only improves the automation and flexibility of the trimming equipment, but also ensures the stability and accuracy of the tread rubber during the trimming process.

[0021] In a preferred embodiment, the present invention can be further configured such that the cutting wheel is located above one of the electric rollers, and the grinding wheel is located above the space between two of the electric rollers.

[0022] By adopting the above technical solution, the cutting wheel is located above the electric roller, which allows the tread rubber to be cut directly through the cutting wheel during the conveying process without additional conveying or transfer steps, thereby improving production efficiency. At the same time, the grinding wheel is located between the two electric rollers, which allows the tread rubber to directly enter the grinding area after cutting without additional conveying or waiting time. This not only improves production efficiency but also ensures the continuity and stability of the grinding process.

[0023] In summary, this utility model includes at least one of the following beneficial technical effects of the pre-vulcanization and trimming equipment for retreading tires for engineering machinery:

[0024] 1. The tread rubber to be trimmed is conveyed to the bottom of the H-shaped bracket via the conveying mechanism. At this time, the U-shaped plate is driven to move in opposite directions by the telescopic rod assembly. The distance between the cutting device and the grinding device is adjusted synchronously to ensure that the cutting and grinding devices can closely fit the edge of the tread rubber, improving the trimming effect. Then, the edge of the tread rubber is trimmed and ground in sequence to remove burrs and defects, prevent excessive loss, and during the trimming process, the clamping component presses the tread rubber firmly on the conveying mechanism to prevent it from moving or deforming, further improving the accuracy and stability of the trimming and ensuring the trimming quality.

[0025] 2. The drive motor drives the three driving wheels to rotate, which in turn drives the driven wheels to rotate synchronously. This causes the guide belt to contact the side of the tread rubber, ensuring that the tread rubber is always subjected to uniform guiding and correcting force during the conveying process. This guides and corrects the tread rubber to maintain the correct position and posture during the conveying process, preventing it from deviating from the predetermined path or deforming. Attached Figure Description

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the premise that they do not pay any creative effort, and the drawings are as follows:

[0027] Figure 1 It is a structural schematic view of the present application;

[0028] Figure 2 It is a structural schematic view of the trimming mechanism of the present application;

[0029] Figure 3 It is a structural schematic view of the cutting device and the polishing device of the present application;

[0030] Figure 4 It is a structural schematic view of the pressing assembly of the present application;

[0031] Figure 5 It is a structural schematic view of the correction mechanism of the present application.

[0032] In the drawings: 10, conveying mechanism; 20, correction mechanism; 30, trimming mechanism; 4, waste collecting box;

[0033] 11, support; 12, electric roller;

[0034] 21, U-shaped frame; 22, guide assembly;

[0035] 31, H-shaped support; 32, connecting plate; 33, pressing assembly; 34, movable groove; 35, U-shaped plate; 36, cutting device; 37, polishing device; 38, telescopic rod assembly; 39, guide rail; 3a, sliding block;

[0036] 221, driving wheel; 222, driven wheel; 223, guide belt; 224, driving motor three;

[0037] 331, U-shaped seat; 332, pressing roller; 333, limiting rod; 334, spring;

[0038] 361, cutting wheel; 362, driving motor one;

[0039] 371, connecting block; 372, polishing wheel; 373, driving motor two;

[0040] 381, mounting plate; 382, electric push rod. DETAILED DESCRIPTION

[0041] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used for illustrating and explaining the utility model, and are not used for limiting the utility model.

[0042] It should be noted that these drawings are all simplified schematic diagrams, and only illustrate the basic structure of the utility model in a schematic manner, and thus only show the components related to the utility model.

[0043] Referring to Figures 1-5 The utility model discloses an engineering machinery retreaded tire's pre -vulcanized trimming equipment, include: conveying mechanism 10, conveying mechanism 10 is sequentially provided with correction mechanism 20 and trimming mechanism 30 from left to right, and the lower of trimming mechanism 30 is equipped with waste collection box 4, and conveying mechanism 10 includes support 11, and the inside of support 11 is rotatably connected with electric roller 12, and the outer circle top end of electric roller 12 is located above the top of support 11, and trimming mechanism 30 includes the two H-shaped supports 31 of interval arrangement and the connecting plate 32 connected between them, and a plurality of compression assemblies 33 are connected on the connecting plate 32, and the H-shaped support 31 is respectively symmetrically provided with movable slot 34, and it further includes the U-shaped plate 35 of symmetric setting, and the both ends of U-shaped plate 35 are slidably connected in movable slot 34, and one end of U-shaped plate 35 is respectively connected with cutting device 36, and the other end is respectively connected with polishing device 37, and it further includes telescopic link assembly 38, and telescopic link assembly 38 is suitable for driving U-shaped plate 35 to move towards and opposite when stretching out and drawing back, and telescopic link assembly 38 includes mounting plate 381 connected between H-shaped support 31, and electric push rod 382 is connected on mounting plate 381, and the extension end of electric push rod 382 is connected with U-shaped plate 35, and the top of H-shaped support 31 is respectively symmetrically connected with guide rail 39, and the sliding block 3a is slidably connected on guide rail 39, and sliding block 3a is respectively connected with corresponding U-shaped plate 35, and cutting device 36 includes cutting wheel 361 rotatably connected on the one side of the top of U-shaped plate 35, and driving motor one 362 is installed on the other side of the top of U-shaped plate 35, and the output shaft of driving motor one 362 is connected with cutting wheel 361, and polishing device 37 includes connecting block 371 connected on U-shaped plate 35, and polishing wheel 372 is rotatably connected on the bottom of connecting block 371, and driving motor two 373 is connected on the top, and the output shaft of driving motor two 373 is connected with polishing wheel 372, and cutting wheel 361 and polishing wheel 372 are respectively on the same plane away from telescopic link assembly 38 side;

[0044] The driving motor one 362 and the driving motor two 373 are servo motors, the conveying mechanism 10 is responsible for conveying the tire rubber to be trimmed from one end to the other end, after correction, trimming and other treatments, the correction mechanism 20 corrects the tire rubber during the conveying process to prevent it from deviating and ensure that the tire rubber maintains a stable position and angle during the trimming process, thereby improving the consistency and precision of trimming, the tire rubber after correction moves to the lower side of the H-shaped support 31, the telescopic rod assembly 38 drives the U-shaped plate 35 to move towards each other to adjust the distance between the cutting device 36 and the polishing device 37, so that the cutting device 36 and the polishing device 37 can closely fit the edge of the tire rubber, thereby improving the trimming effect, then the driving motor one 362 drives the cutting wheel 361 to cut the edge of the tire rubber, and the driving motor two 373 drives the polishing wheel 372 to polish the cut tire rubber, since the electric push rod 382 drives the U-shaped plate 35 to move synchronously, the cutting depth and the polishing pressure can be controlled synchronously, and the trimmed edge of the tire rubber can maintain consistency, thereby preventing excessive loss during trimming and improving the adhesion of the trimmed edge to the main body of the tire.

[0045] The pressing assembly 33 includes a U-shaped seat 331 and a pressing roller 332 rotatably connected to the inner side of the U-shaped seat 331, the top of the U-shaped seat 331 is connected to a limiting rod 333 on each side, the limiting rod 333 is arranged through the connecting plate 32, and a spring 334 is sleeved on the limiting rod 333, one end of the spring 334 is in abutting connection with the connecting plate 32, and the other end is in abutting connection with one end of the limiting rod 333.

[0046] The pressing assembly 33 is not less than three, when the conveying mechanism 10 conveys the corrected tire rubber to the trimming working area, the pressing roller 332 is in contact with the tire rubber, and the pressing roller 332 is pressed on the conveying mechanism 10 by its own rotation and the appropriate pressure provided by the spring 334, thereby improving the accuracy and stability of trimming and preventing the tire rubber from deviating from the predetermined position due to vibration or external force during trimming.

[0047] The correction mechanism 20 includes a U-shaped frame 21 and an inclined and symmetrical guide assembly 22, the guide assembly 22 includes a driving wheel 221, a driven wheel 222 and a guide belt 223, the guide belt 223 is in meshing connection with the driving wheel 221 and the driven wheel 222, the driving wheel 221 is rotatably connected to the bottom of the U-shaped frame 21, the driven wheel 222 is rotatably connected to the support 11, the U-shaped frame 21 is connected to a driving motor three 224, the output shaft of the driving motor three 224 is connected to the driving wheel 221, the distance between the driving wheels 221 is greater than the distance between the driven wheels 222, the cutting wheel 361 is located above one of the electric rollers 12, and the polishing wheel 372 is located above two of the electric rollers 12.

[0048] Drive motor 224, through the cooperation of drive wheel 221 and driven wheel 222, makes the rotation direction of guide belt 223 the same as the conveying direction of tread rubber. Since the spacing of drive wheel 221 is greater than that of driven wheel 222, the two guide belts 223 form a V-shape. The inclination angle between them guides and corrects the tread rubber, keeping it in the correct position and posture during conveying, preventing it from deviating from the predetermined path or deforming. At the same time, drive motor 224 drives drive wheel 221 to rotate, and synchronously drives driven wheel 222 to rotate, so that guide belt 223 contacts the side of tread rubber, ensuring that tread rubber is always subjected to uniform guiding and correcting force during conveying.

[0049] The implementation principle of this embodiment is as follows: During use, when the conveying mechanism 10 conveys the tread rubber to be processed from left to right to the correction mechanism 20, it corrects the tread rubber, so that the tread rubber is conveyed to the trimming area and is in a suitable position and state. Then, the electric push rod 382 drives the U-shaped plate 35 to move towards each other, so that the cutting device 36 and the grinding device 37 are adapted to the tread rubber of the corresponding width. Under the action of the electric roller 12, the tread rubber is conveyed to the bottom of the pressing assembly 33. At this time, the pressing roller 332 contacts the tread rubber, and through its own rotation and the spring... 334 applies appropriate pressure to press it onto the conveying mechanism 10 to prevent it from deviating from the predetermined position due to vibration or external force during the trimming process. Then, drive motor 362 drives the cutting wheel 361 to cut the edge of the tread rubber. The cut waste material falls into the waste collection box 4 through the gap between the electric rollers 12 on the right side of the cutting wheel 361 for subsequent recycling. At the same time, drive motor 373 drives the grinding wheel 372 to grind the cut edge to remove burrs and defects, prevent excessive loss, and further improve the trimming quality.

[0050] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pre-vulcanized trimming apparatus for engineering machinery retreaded tires, characterized in that, Include: Conveying mechanism (10), the conveying mechanism (10) is sequentially provided with correction mechanism (20) and trimming mechanism (30) from left to right, the lower of trimming mechanism (30) is equipped with waste collection box (4); The trimming mechanism (30) includes two H-shaped supports (31) and a connecting plate (32) connected between them, a plurality of pressing assemblies (33) are connected to the connecting plate (32), the H-shaped supports (31) are respectively provided with a movable slot (34) symmetrically, and a U-shaped plate (35) is symmetrically arranged, both ends of the U-shaped plate (35) are respectively connected in the movable slot (34), one end of the U-shaped plate (35) is respectively connected with a cutting device (36), the other end is respectively connected with a polishing device (37), and a telescopic rod assembly (38) is further included, the telescopic rod assembly (38) is suitable for driving the U-shaped plate (35) to move towards and away from each other when it is telescopic. The cutting device (36) includes a cutting wheel (361) rotatably connected to one side of the upper end of the U-shaped plate (35), a driving motor (362) is installed on the other side of the upper end of the U-shaped plate (35), and the output shaft of the driving motor (362) is connected with the cutting wheel (361). The polishing device (37) includes a connecting block (371) connected to the U-shaped plate (35), a polishing wheel (372) is rotatably connected to the bottom of the connecting block (371), and a driving motor (373) is connected to the top of the connecting block (371), the output shaft of the driving motor (373) is connected with the polishing wheel (372), and the cutting wheel (361) and the polishing wheel (372) are respectively located on the same plane away from the telescopic rod assembly (38).

2. An apparatus for pre-vulcanizing the trimming of a retreaded tire for an engineering machine according to claim 1, characterized in that, The pressing assembly (33) includes a U-shaped seat (331) and a pressing roller (332) rotatably connected to the inner side thereof, the top of the U-shaped seat (331) is respectively connected with a limiting rod (333), the limiting rod (333) is respectively provided on the connecting plate (32), the limiting rod (333) is respectively sleeved with a spring (334), one end of the spring (334) is in abutting connection with the connecting plate (32), and the other end is in abutting connection with one end of the limiting rod (333).

3. An apparatus for pre-vulcanizing the trimming of a retreaded tire for an engineering machine according to claim 1, characterized in that, The conveying mechanism (10) includes a support (11), and the inner side of the support (11) is rotatably connected with an electric roller (12), and the outer circle top end of the electric roller (12) is located above the top of the support (11).

4. An apparatus for pre-vulcanizing the trimming of a retreaded tire for an engineering machine according to claim 3, characterized in that, The correction mechanism (20) comprises a U-shaped frame (21) and an inclined symmetric guide assembly (22), the guide assembly (22) comprises a driving wheel (221), a driven wheel (222) and a guide belt (223), the guide belt (223) is meshed with the driving wheel (221) and the driven wheel (222) respectively, the driving wheel (221) is rotatably connected at the bottom of the U-shaped frame (21), the driven wheel (222) is rotatably connected on the support (11), the top of the U-shaped frame (21) is connected with a driving motor three (224), the output shaft of the driving motor three (224) is connected with the driving wheel (221), the distance between the driving wheels (221) is greater than the distance between the driven wheels (222).

5. An apparatus for pre-vulcanizing the trimming of a retreaded tire for an engineering machine according to claim 1, characterized in that, The telescopic rod assembly (38) comprises a mounting plate (381) connected between the H-shaped supports (31), and an electric push rod (382) is connected to the mounting plate (381), and the extending end of the electric push rod (382) is connected with the U-shaped plate (35).

6. An apparatus for pre-sulfiding skiving of retreaded tires for construction machines according to claim 1, characterized in that, The top of the H-shaped support (31) is symmetrically connected with a guide rail (39), and the guide rail (39) is slidably connected with a sliding block (3a), and the sliding block (3a) is connected with the corresponding U-shaped plate (35).

7. An apparatus for pre-vulcanizing and trimming the edges of a retreaded tire for an earthmoving machine according to claim 3, characterized in that, The cutting wheel (361) is located above one of the electric rollers (12), and the grinding wheel (372) is located above between two of the electric rollers (12).

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