An extrusion trimming device for rubber tire processing

Abstract

The present invention relates to the technical field of tire processing, and discloses an extrusion trimming device for rubber tire processing, comprising an extruder body and a support frame, a cylindrical support frame installed on the top of the support frame is arranged outside the top of the extruder body, and a clearance groove is opened at the bottom of the cylindrical support frame, and a transmission shaft is arranged on the inner side of the middle of the cylindrical support frame through a bearing sleeve. The extrusion trimming device for rubber tire processing is composed of a multifunctional extrusion trimming device through the cylindrical support frame, the transmission shaft, the brake stepping motor, the protective plate, three power output components, and three composite shear plates. After being used in combination with the extruder body, the rubber raw material extruded by the extruder body can meet the automatic shearing requirements of the composite shear plate corresponding to the power output component. After a composite shear plate overheats during reciprocating operation, the brake stepping motor can rotate the three composite shear plates through the transmission shaft to provide self-heating time for the overheated composite shear plate.

Description

Technical Field

[0001] The invention relates to the technical field of tire processing, in particular to an extrusion trimming device for rubber tire processing. Background Art

[0002] Tires are circular elastic rubber products that roll on the ground and are installed on various vehicles or machinery. The demand for their use has increased dramatically with the increase in the use of modern cars. However, considering the production cost and environmental protection issues, the prior art has also developed secondary utilization and reproduction technologies using waste tires as raw materials for the production of tires, and the relevant technical content has also been disclosed in detail. For example, the patent document with application number CN202410906442.6 discloses an extrusion trimming device for rubber tire processing, which proposes a technical solution for the secondary recycling and reproduction of waste tires.

[0003] From the above-mentioned prior art and the applicant's actual operation, for the re-extrusion process of waste tire recycling, the initially extruded rubber raw materials need to be sheared multiple times in order to fully react again later. Therefore, the trimming mechanism is used more frequently. However, under adverse conditions such as frequent shearing and high-temperature heating of the rubber raw materials at the same temperature, the service life of the trimming mechanism is adversely affected, and further improvement is needed. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides an extrusion trimming device for rubber tire processing, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an extrusion trimming device for rubber tire processing, comprising an extruder body and a support frame, a cylindrical support frame installed on the top of the support frame is arranged outside the top of the extruder body, and a clearance groove is opened at the bottom of the cylindrical support frame, a transmission shaft is mounted on the inner side of the middle part of the cylindrical support frame through a bearing sleeve, the rear end of the transmission shaft is transmission-connected to a brake stepper motor, and a support seat is fixedly connected between the shell surface of the brake stepper motor and the surface of the rear end of the cylindrical support frame, a composite shear plate is sleeved inside the cylindrical support frame, a power output assembly is installed on the surface of the transmission shaft, the output structure of the power output assembly is transmission-connected to the middle part of the composite shear plate, and the bottom structure of the composite shear plate is aligned with the extrusion end of the extruder body.

[0008] Preferably, the power output assembly is composed of an electric push rod and a support frame mounted outside the electric push rod housing, and the support frame is fixedly connected to the surface of the middle part of the transmission shaft to maintain the automated use state of the entire process.

[0009] Preferably, the composite shear plate includes a shear plate body and a combined slide rail, an assembly groove is opened in the top of the shear plate body, and first threaded holes are opened in the inner walls at the front and rear ends of the bottom of the assembly groove, the combined slide rail is clamped in the assembly groove, and the combined slide rail and the first threaded hole are installed by screws, thereby meeting the cutting requirements of the composite shear plate while meeting the separation and replacement use conditions of the shear plate body, the main cutting structure of the composite shear plate, and the middle part of the combined slide rail is transmission-connected to the output end of the electric push rod.

[0010] Preferably, a constraint rod is arranged between the top of the combined slide rail and the surface of the transmission shaft, and the constraint rod consists of a guide sleeve and a constraint rod. One end of the guide sleeve is fixedly connected to the surface of the transmission shaft, one end of the constraint rod is fixedly connected to the top surface of the combined slide rail, and the other end of the guide sleeve is clamped with the other end of the constraint rod. The guide sleeve and the constraint rod are fitted together to provide constraint guidance for the reciprocating movement of the composite shear plate, thereby improving the stability of the overall movement of the composite shear plate.

[0011] Preferably, the number of the composite shear plates is the same as the number of the power output assemblies and is set to three, and the three power output assemblies and the three composite shear plates are distributed along the circumference of the drive shaft. Therefore, by alternating the use of the three composite shear plates, sufficient self-cooling time can be provided for the composite shear plates after use, thereby reducing the accelerated wear of the composite shear plates caused by overheating.

[0012] Preferably, protective plates are nested in the front and rear ends of the cylindrical support frame, and second threaded holes are opened in the structures of the front and rear ends of the cylindrical support frame. The protective plates include an outer ring plate and an inner ring plate, and an annular filter is installed between the outer ring plate and the inner ring plate. Screws are used to install the inner ring plate and the second threaded holes. The two protective plates are used to close the space at the front and rear ends of the cylindrical support frame, and then the use range of multiple composite shear plates is relatively closed, thereby improving the safety of use.

[0013] Preferably, a synchronous detection component is nested in one side of the top of the cylindrical support frame, and the synchronous detection component includes a hollow plate, a pressure sensor, an elastic arc plate and a spherical block. The hollow plate is nested in the interior of one side of the top of the cylindrical support frame, and the pressure sensor and the elastic arc plate are respectively fixedly sleeved in the interior of both sides of the hollow plate, and the spherical block is fixedly connected to the middle part of the elastic arc plate and can be fitted and connected with the pressure sensing surface of the pressure sensor. The elastic arc plate and the spherical block serve as transition structures, which can contact the composite shear plate during rotation, and then transfer the pressure to the pressure sensor, so that the pressure sensor generates pressure data, and the subsequent changes in the pressure data can be used to reflect the degree of wear of the composite shear plate.

[0014] Preferably, a folded spring sheet is installed between the surface of one side of the elastic arc plate and the inner wall of one side of the hollow plate, and the number of folded spring sheets is not less than two. The folded spring sheet serves as an auxiliary structure for the elastic arc plate to be reset under pressure, and can provide auxiliary power for the reset of the elastic arc plate before and after use, thereby creating favorable conditions for the continuous use of the elastic arc plate.

[0015] Preferably, the hollow plate is clamped in the interior of one side of the top of the cylindrical support frame, and a transition mounting plate is fixedly connected to the surface of the hollow plate. A third threaded hole is provided on the surface of one side of the top of the cylindrical support frame, and the transition mounting plate and the third threaded hole are installed by screws, thereby providing structural conditions for the detachable installation of the synchronous detection component on the cylindrical support frame, thereby optimizing the installation performance of the synchronous detection component.

[0016] Beneficial Effects

[0017] The present invention provides an extrusion trimming device for rubber tire processing, which has the following beneficial effects:

[0018] 1. The extrusion trimming device for rubber tire processing is composed of a multifunctional extrusion trimming device composed of a cylindrical support frame, a transmission shaft, a brake stepper motor, a protective plate, three power output components, and three composite shear plates. After being used in combination with an extruder body, the rubber raw material extruded by the extruder body can meet the automatic shearing requirements of the composite shear plates corresponding to the power output components. After a composite shear plate overheats during reciprocating operation, the brake stepper motor can rotate the three composite shear plates through the transmission shaft to provide self-heating time for the overheated composite shear plates, or the output end of the brake stepper motor drives the three power output components and the three composite shear plates to reciprocate through the transmission shaft, and then the airflow generated by the rotation of the three composite shear plates is used to make the hot air inside the cylindrical support frame quickly rotate with the external cold air through the protective plate, thereby accelerating the heat dissipation speed of the three composite shear plates, thereby solving the problems existing in the prior art.

[0019] 2. The extrusion trimming device for rubber tire processing uses a synchronous detection component as a detection condition for the wear of the composite shear plate. Subsequently, without interfering with the rotation and rotation operation of the three composite shear plates, the three composite shear plates can reflect the respective wear degrees in disguised form by the changes in the pressure data of the pressure sensors through the elastic arc plates and the spherical blocks.

[0020] 3. The extrusion trimming device for rubber tire processing can perform synchronous operation for the replacement of the composite shear plate without shutting down the extruder body and stopping the shearing operation. Specifically, the screws between the two protective plates and the cylindrical support frame can be removed to separate the two protective plates from the cylindrical support frame. Then, for the composite shear plate that is not in use and needs to be replaced, its internal screws are turned, and then the shear plate body is pulled out to separate the shear plate body from the combined slide rail. Then, the new shear plate body is re-assembled with the combined slide rail to meet the replacement and use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a rear view schematic diagram of the structure of the present invention;

[0023] Figure 3 It is an enlarged schematic diagram of the cylindrical support frame of the structure of the present invention;

[0024] Figure 4 It is an enlarged schematic diagram of the structural composite shear plate of the present invention;

[0025] Figure 5 The structure of the present invention Figure 4 The enlarged schematic diagram of point A in the middle;

[0026] Figure 6 It is a partial cross-sectional schematic diagram of the structural synchronization detection component of the present invention.

[0027] In the figure: 1. extruder body; 2. support frame; 3. cylindrical support frame; 4. give way groove; 5. transmission shaft; 6. brake stepper motor; 7. power output assembly; 8. composite shear plate; 81. shear plate body; 82. combined slide rail; 9. protective plate; 10. restraining rod; 101. guide sleeve; 102. restraining rod; 11. synchronous detection assembly; 111. hollow plate; 112. pressure sensor; 113. elastic arc plate; 114. spherical block; 115. folded spring sheet; 116. transition mounting plate. DETAILED DESCRIPTION

[0028] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0029] See also Figure 1-6, an extrusion trimming device for rubber tire processing, comprising an extruder body 1 and a support frame 2, a cylindrical support frame 3 installed on the top of the support frame 2 is arranged outside the top of the extruder body 1, and a clearance groove 4 is opened at the bottom of the cylindrical support frame 3, a transmission shaft 5 is arranged on the inner side of the middle part of the cylindrical support frame 3 through a bearing sleeve, a brake stepper motor 6 is transmission-connected to the rear end of the transmission shaft 5, and a support seat is fixedly connected between the shell surface of the brake stepper motor 6 and the surface of the rear end of the cylindrical support frame 3, a composite shear plate 8 is sleeved inside the cylindrical support frame 3, a power output assembly 7 is installed on the surface of the transmission shaft 5, the power output assembly 7 is composed of an electric push rod and a support frame sleeved outside the shell of the electric push rod, the support frame is fixedly connected to the surface of the middle part of the transmission shaft 5, and the automated use state of the overall process is maintained, the output structure of the power output assembly 7 is transmission-connected to the middle part of the composite shear plate 8, and the bottom structure of the composite shear plate 8 is aligned with the extrusion end of the extruder body 1;

[0030] The composite shear plate 8 comprises a shear plate body 81 and a combined slide rail 82. An assembly groove is provided in the top of the shear plate body 81, and first threaded holes are provided in the inner walls of the front and rear ends of the bottom of the assembly groove. The combined slide rail 82 is clamped in the assembly groove, and the combined slide rail 82 and the first threaded hole are installed by screws, thereby meeting the cutting requirements of the composite shear plate 8 while meeting the separation and replacement use conditions of the main cutting structure of the composite shear plate 8, that is, the shear plate body 81. The middle part of the combined slide rail 82 is transmission-connected to the output end of the electric push rod, and the combined slide rail 82 A restraining rod 10 is provided between the top of the composite shear plate 8 and the surface of the transmission shaft 5. The restraining rod 10 is composed of a guide sleeve 101 and a restraining rod 102. One end of the guide sleeve 101 is fixedly connected to the surface of the transmission shaft 5, and one end of the restraining rod 102 is fixedly connected to the top surface of the combined slide rail 82. The other end of the guide sleeve 101 is clamped with the other end of the restraining rod 102. The set of the guide sleeve 101 and the restraining rod 102 provides a restraining guide for the reciprocating movement of the composite shear plate 8, thereby improving the stability of the overall movement of the composite shear plate 8.

[0031] The number of the composite shear plates 8 is the same as the number of the power output components 7 and is set to three. The three power output components 7 and the three composite shear plates 8 are distributed along the circumference of the transmission shaft 5. Therefore, by using the three composite shear plates 8 alternately, sufficient self-cooling time can be provided for the composite shear plates 8 after use, thereby reducing the accelerated wear of the composite shear plates 8 caused by overheating.

[0032] The front and rear ends of the cylindrical support frame 3 are both embedded with protective plates 9, and the front and rear ends of the cylindrical support frame 3 are both provided with second threaded holes. The protective plates 9 include an outer ring plate and an inner ring plate, and an annular filter screen is installed between the outer ring plate and the inner ring plate. The inner ring plate and the second threaded holes are installed with screws. The two protective plates 9 are used to seal the space at the front and rear ends of the cylindrical support frame 3, and then the use range of the multiple composite shear plates 8 is relatively closed, thereby improving the safety of use.

[0033] A synchronous detection component 11 is nested in one side of the top of the cylindrical support frame 3, and the synchronous detection component 11 includes a hollow plate 111, a pressure sensor 112, an elastic arc plate 113 and a spherical block 114. The hollow plate 111 is nested in the inside of one side of the top of the cylindrical support frame 3, and the pressure sensor 112 and the elastic arc plate 113 are respectively fixedly sleeved in the inside of both sides of the hollow plate 111, and the spherical block 114 is fixedly connected to the middle of the elastic arc plate 113 and can be connected with the pressure sensing surface of the pressure sensor 112. The elastic arc plate 113 and the spherical block 114 serve as a transition structure and can be combined with the composite shear during the rotation process. The plate 8 contacts, and then applies pressure transition to the pressure sensor 112, so that the pressure sensor 112 generates pressure data. The subsequent change in the pressure data can be used to reflect the degree of wear of the composite shear plate 8. A folding spring sheet 115 is installed between the surface of one side of the elastic arc plate 113 and the inner wall of one side of the hollow plate 111, and the number of folding spring sheets 115 is not less than two. The folding spring sheet 115 serves as an auxiliary structure for the elastic arc plate 113 to be reset under pressure, and can provide auxiliary power for the reset of the elastic arc plate 113 before and after use, creating favorable conditions for the continuous use of the elastic arc plate 113.

[0034] The hollow plate 111 is clamped inside the top side of the cylindrical support frame 3, and the surface of the hollow plate 111 is fixedly connected with a transition mounting plate 116. A third threaded hole is opened on the surface of the top side of the cylindrical support frame 3, and the transition mounting plate 116 and the third threaded hole are installed by screws, thereby providing structural conditions for the detachable installation of the synchronous detection component 11 on the cylindrical support frame 3, and optimizing the installation performance of the synchronous detection component 11.

[0035] Working principle:

[0036] Embodiment 1

[0037] For the shearing demand of the rubber raw material extruded by the extruder body 1, the electric push rod inside the power output assembly 7 can be started, and the output end of the electric push rod drives the corresponding composite shear plate 8 to penetrate the make way groove 4 to automatically shear the rubber raw material. After completion, the electric push rod is closed, and the composite shear plate 8 is driven by the electric push rod to move up and reset to the inside of the make way groove 4. Then, according to the above steps, the multi-stage automatic shearing demand of the rubber raw material can be realized by repeating the operation;

[0038] When a single composite shear plate 8 has been used for a long time and has a tendency to overheat, the brake stepper motor 6 can be started, and the output end of the brake stepper motor 6 drives the three power output components 7 and the three composite shear plates 8 to automatically rotate through the transmission shaft 5, and then the composite shear plate 8 that has been used for a long time is rotated to the inside of the cylindrical support frame 3, and the unused composite shear plate 8 is realigned with the clearance groove 4. After completion, the electric push rod inside the power output component 7 is repeatedly opened and closed, and the output end of the electric push rod drives the corresponding composite shear plate 8 to penetrate the clearance groove 4 to automatically reciprocate and shear the rubber raw material. At the same time, the rotated composite shear plate 8 will also obtain sufficient time for self-cooling and heat dissipation conditions to avoid overheating;

[0039] The relatively closed space formed by the combination of the two protective plates 9 and the cylindrical support frame 3 can restrict and limit the use range of the multiple composite shear plates 8, thereby ensuring the safety of the operators outside the equipment.

[0040] When the rotation interval of the three composite shear plates 8 is shortened and overheating occurs, the brake stepper motor 6 can be started during the working interval of the extruder body 1, and the output end of the brake stepper motor 6 drives the three power output components 7 and the three composite shear plates 8 to reciprocate through the transmission shaft 5, and then the airflow generated by the rotation of the three composite shear plates 8 is used to make the hot air inside the cylindrical support frame 3 quickly rotate with the external cold air through the protective plate 9, thereby accelerating the heat dissipation speed of the three composite shear plates 8 to avoid the phenomenon of accelerated wear of the three composite shear plates 8 due to overheating.

[0041] Embodiment 2

[0042] For the shearing requirements of the rubber raw materials extruded by the extruder body 1, the operation can be carried out according to the above-mentioned embodiment 1, and for the specific use and wear degree of the three reciprocating composite shear plates 8, the brake stepper motor 6 can be started when the three composite shear plates 8 are not in use, and the output end of the brake stepper motor 6 drives the three power output components 7 and the three composite shear plates 8 to automatically rotate through the transmission shaft 5, and then the three unused composite shear plates 8 press the elastic arc plate 113 in turn, and the compressed elastic arc plate 113 will transmit the pressure to the pressure sensor 112 through the spherical block 114, so that the pressure sensor 112 outputs the initial pressure data, thereby obtaining three preliminary pressure data;

[0043] Then, after the three composite shear plates 8 have been used for a period of time, as the three composite shear plates 8 are rotated by the brake stepper motor 6 through the transmission shaft 5, the three composite shear plates 8 will contact the top-pressing elastic arc plate 113 for many times. Similarly, the elastic arc plate 113 will still generate intermediate pressure data. Then, the intermediate pressure data is compared with the initial pressure data. When the data difference is within an acceptable range, it means that the structural state of the composite shear plate 8 is good. When the data difference exceeds the acceptable range, it means that the structure of the composite shear plate 8 is greatly worn and needs to be replaced.

[0044] As for the replacement of the composite shear plate 8, it can be operated synchronously without shutting down the extruder body 1 and stopping the shearing operation. Specifically, the screws between the two protective plate members 9 and the cylindrical support frame 3 are removed to separate the two protective plate members 9 from the cylindrical support frame 3. Then, for the unused composite shear plate 8 that needs to be replaced, its internal screws are turned, and then, the shear plate body 81 is pulled out to separate the shear plate body 81 from the combined slide rail 82, and then, the new shear plate body 81 and the combined slide rail 82 are re-installed, and then, the locking screws are reset, and then, the two protective plate members 9 and the screws corresponding to the two protective plate members 9 are reset.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extrusion trimming device for rubber tire processing, comprising an extruder body (1) and a support frame (2), characterized in that: A cylindrical support frame (3) mounted on the top of the support frame (2) is arranged outside the top of the extruder body (1), and a clearance groove (4) is opened at the bottom of the cylindrical support frame (3); a transmission shaft (5) is mounted on the inner side of the middle part of the cylindrical support frame (3) through a bearing sleeve, and the rear end of the transmission shaft (5) is transmission-connected to a brake stepper motor (6), and a support seat is fixedly connected between the shell surface of the brake stepper motor (6) and the surface of the rear end of the cylindrical support frame (3); a composite shear plate (8) is sleeved inside the cylindrical support frame (3), and a power output assembly (7) is installed on the surface of the transmission shaft (5); the output structure of the power output assembly (7) is transmission-connected to the middle part of the composite shear plate (8), and the bottom structure of the composite shear plate (8) is aligned with the extrusion end of the extruder body (1); The power output assembly (7) is composed of an electric push rod and a support frame mounted outside the housing of the electric push rod, and the support frame is fixedly connected to the surface of the middle part of the transmission shaft (5); The number of the composite shear plates (8) is the same as the number of the power output assemblies (7) and is set to three, and the three power output assemblies (7) and the three composite shear plates (8) are distributed along the circumference of the transmission shaft (5); The front and rear ends of the cylindrical support frame (3) are both embedded with protective plates (9), and the front and rear ends of the cylindrical support frame (3) are both provided with second threaded holes, the protective plates (9) comprising an outer ring plate and an inner ring plate, and an annular filter screen is installed between the outer ring plate and the inner ring plate, and the inner ring plate and the second threaded holes are installed with screws; A synchronous detection component (11) is nested inside one side of the top of the cylindrical support frame (3), and the synchronous detection component (11) comprises a hollow plate (111), a pressure sensor (112), an elastic arc plate (113), and a spherical block (114); the hollow plate (111) is nested inside one side of the top of the cylindrical support frame (3), and the pressure sensor (112) and the elastic arc plate (113) are respectively fixedly sleeved inside two sides of the hollow plate (111), and the spherical block (114) is fixedly connected to the middle of the elastic arc plate (113) and can be fitted and connected with the pressure sensing surface of the pressure sensor (112); A folded spring sheet (115) is installed between the surface of one side of the elastic arc plate (113) and the inner wall of one side of the hollow plate (111), and the number of the folded spring sheets (115) provided is not less than two.

2. The extrusion trimming device for rubber tire processing according to claim 1, characterized in that: The composite shear plate (8) comprises a shear plate body (81) and a combined slide rail (82); an assembly groove is provided in the top of the shear plate body (81), and first threaded holes are provided in the inner walls at the front and rear ends of the bottom of the assembly groove; the combined slide rail (82) is clamped in the assembly groove, and the combined slide rail (82) and the first threaded hole are mounted by screws; the middle of the combined slide rail (82) is transmission-connected to the output end of the electric push rod.

3. The extrusion trimming device for rubber tire processing according to claim 2, characterized in that: A restraining rod (10) is provided between the top of the combined slide rail (82) and the surface of the transmission shaft (5); the restraining rod (10) is composed of a guide sleeve (101) and a restraining rod (102); one end of the guide sleeve (101) is fixedly connected to the surface of the transmission shaft (5); one end of the restraining rod (102) is fixedly connected to the top surface of the combined slide rail (82); and the other end of the guide sleeve (101) is clamped with the other end of the restraining rod (102).

4. The extrusion trimming device for rubber tire processing according to claim 1, characterized in that: The hollow plate (111) is clamped inside one side of the top of the cylindrical support frame (3), and a transition mounting plate (116) is fixedly connected to the surface of the hollow plate (111), a third threaded hole is provided on the surface of one side of the top of the cylindrical support frame (3), and the transition mounting plate (116) is mounted to the third threaded hole by means of screws.

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