A rubber sheet trimming device for solid tire production

Abstract

The utility model discloses a solid tire production technology field's a rubber sheet trimming device for solid tire production, including the connection subassembly and the trimming subassembly, the trimming subassembly includes with the trimming fixed frame of connection subassembly fixed connection, the trimming fixed frame is slidably connected with two groups symmetrical settings double -deck trimming frame, the bottom of trimming fixed frame is equipped with the horizontal -shift mechanism of the drive two groups double -deck trimming frame and move to each other or away from each other, two groups the lower chamber of double -deck trimming frame all rotationally connected with lower trimming wheel, the trimming fixed frame is rotationally connected with the long tooth rotating shaft of the penetration two groups lower trimming wheel, adopt double -deck frame structure, will drive and cutting function layer arrangement, compact stable structure. Upper trimming wheel and lower trimming wheel all independent drive, ensure that the upper and lower cutter wheel has independent and strong driving force, can effectively overcome the resistance of thick rubber material, realizes smooth cutting.

Description

Technical Field

[0001] This utility model relates to the field of solid tire production technology, specifically to a film trimming device for solid tire production. Background Technology

[0002] In the production of solid tires, the rubber sheets need to be cut into specific widths and shapes to meet the requirements of subsequent molding and vulcanization. Traditional methods of cutting rubber sheets, such as manual cutting or fixed cutters, suffer from low efficiency, poor precision, and high labor intensity. In particular, for different specifications of solid tires, the required rubber sheet width varies greatly, and fixed-size cutters are difficult to adapt to, requiring frequent cutter changes or equipment adjustments, which seriously affects production efficiency and flexibility.

[0003] While some adjustable-width trimming devices exist in the existing technology, they generally suffer from the following problems:

[0004] Inconvenient to adjust: The width adjustment mechanism is complex, cumbersome to operate, and time-consuming.

[0005] Unstable cutting quality: For thick, highly elastic films, burrs, stretching deformation, or uneven cuts are easily produced during cutting, affecting the subsequent bonding quality and product appearance.

[0006] Poor synchronization: When using double-blade symmetrical cutting, it is difficult to ensure the precise synchronous movement and rotation of the two blades, resulting in non-parallel or inconsistent cutting lines.

[0007] Insufficient support: The film lacks effective support in the cutting area, especially in the central area, which is prone to sinking and deforming under the pressure of the cutter, further affecting the cutting accuracy and edge quality.

[0008] Based on this, this utility model designs a film trimming device for solid tire production to solve the above problems. Utility Model Content

[0009] The purpose of this invention is to provide a film trimming device for solid tire production, so as to solve the problems mentioned in the background art.

[0010] To achieve the above objectives, this utility model provides the following technical solution: a film trimming device for solid tire production, comprising a receiving assembly and a trimming assembly. The trimming assembly includes a trimming fixing frame fixedly connected to the receiving assembly. Two sets of symmetrically arranged double-layer trimming frames are slidably connected to the trimming fixing frame. A transverse movement mechanism capable of driving the two sets of double-layer trimming frames to move towards or away from each other is installed at the bottom of the trimming fixing frame. Lower trimming wheels are rotatably connected to the lower inner cavities of both sets of double-layer trimming frames. A long-toothed rotating shaft passing through the two sets of lower trimming wheels is rotatably connected to the trimming fixing frame. The lower cutting wheel is sleeved together, allowing it to rotate without affecting the movement of the double-layer cutting frame. A second motor that can drive the long toothed shaft to rotate is installed on the other end of the cutting frame opposite to the first motor. The upper inner cavity of both sets of double-layer cutting frames is rotatably connected to the upper cutting wheel. A third motor that can drive the upper cutting wheel to rotate is installed laterally on the upper layer of the double-layer cutting frame. Cutting blades are installed on the upper and lower cutting wheels in an alternating manner. A support plate is provided between the two sets of lower cutting wheels. Springs are fixed between the two sets of support plates and the lower cutting wheels on both sides.

[0011] Preferably, the receiving assembly includes a receiving bracket, the upper middle part of which is provided with a trimming component clearance groove, a first conveying roller and a second conveying roller are respectively provided on the left and right sides of the trimming component clearance groove, a feeding conveying roller is hinged to the left end of the first conveying roller, and a first cylinder is hinged between the feeding conveying roller and the receiving bracket.

[0012] Preferably, the transverse movement mechanism includes an internally threaded block fixed to the bottom of the double-layer trimming frame, bearing seats are installed on both the left and right sides of the bottom of the trimming fixing frame, and a bidirectional threaded rod that is screwed to the two sets of internally threaded blocks is rotatably connected between the two sets of bearing seats. A first motor that can drive the bidirectional threaded rod is installed at one end of the trimming fixing frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Highly efficient, flexible, and adaptable:

[0015] The two sets of double-layer cutting frames are driven to move towards or away from each other by a transverse mechanism (bidirectional threaded rod, internal threaded block, and first motor). The distance between the cutting wheels on both sides can be adjusted quickly and accurately to meet the cutting requirements of films of different widths, significantly improving the equipment's versatility and changeover efficiency.

[0016] The first cylinder in the receiving assembly can drive the angle adjustment of the feed conveyor roller, which facilitates the guidance of films of different thicknesses or conditions into the cutting area.

[0017] High cutting precision, smooth cut:

[0018] The system adopts a double-layer frame structure, which arranges the driving and cutting functions in layers, resulting in a compact and stable structure.

[0019] Both the upper and lower cutting wheels are driven independently (the second motor drives the long-toothed shaft to drive the lower cutting wheel, and the third motor directly drives the upper cutting wheel), ensuring that the upper and lower cutting wheels have independent and strong driving force, which can effectively overcome the resistance of thick rubber materials and achieve smooth cutting.

[0020] The cutting blades on the upper and lower cutting wheels are staggered to create a shearing effect similar to scissors. Compared with single-sided cutting, this can cut the rubber fibers more effectively, reduce stretching and deformation, and obtain a smoother and flatter cut.

[0021] The design of the long-toothed swivel is key: it runs through and drives all the lower cutting wheels (through a nested fit), while allowing the double-layered cutting frame to slide freely on it. This ensures that all the lower cutting wheels are precisely and synchronously driven by the same power source, regardless of the width of the cutting frame, ensuring that the cutting speed on both sides is completely consistent and avoiding non-parallel cutting or width errors caused by differences in rotational speed.

[0022] Effective support to prevent deformation:

[0023] The support plate between the two sets of lower cutting wheels is fixed to the lower cutting wheels on both sides by springs.

[0024] As the film passes through the cutting area (located between the upper and lower cutting wheels), the support disc, under the action of a spring, remains in close contact with the lower surface of the film, providing dynamic and flexible support.

[0025] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the receiving component structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the edge-cutting component structure of this utility model;

[0030] Figure 4This is a partial cross-sectional view of the cutting edge assembly of this utility model.

[0031] In the attached diagram, the components represented by each number are as follows:

[0032] 11-Guiding assembly, 111-Guiding bracket, 112-Trimming assembly clearance groove, 113-First conveying roller, 114-Second conveying roller, 115-Feeding conveying roller, 116-First cylinder, 12-Trimming assembly, 121-Trimming fixing frame, 122-Double-layer trimming frame, 123-Internal threaded block, 124-Bearing seat, 125-Bidirectional threaded rod, 126-First motor, 127-Lower trimming wheel, 128-Long-tooth rotating shaft, 129-Second motor, 1210-Upper trimming wheel, 1211-Third motor, 1212-Trimming blade, 1213-Support plate, 1214-Spring. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1-4This utility model provides a technical solution for a film trimming device for solid tire production: A film trimming device for solid tire production includes a receiving assembly 11 and a trimming assembly 12. The trimming assembly 12 includes a trimming fixing frame 121 fixedly connected to the receiving assembly 11. Two sets of symmetrically arranged double-layer trimming frames 122 are slidably connected to the trimming fixing frame 121. A transverse movement mechanism is installed at the bottom of the trimming fixing frame 121 to drive the two sets of double-layer trimming frames 122 to move towards or away from each other. The lower inner cavity of each set of double-layer trimming frames 122 is rotatably connected to a lower trimming wheel 127. A long toothed rotating shaft 128 passing through the two sets of lower trimming wheels 127 is rotatably connected to the trimming fixing frame 121. The long toothed rotating shaft 128 is sleeved with the lower trimming wheel 127. The mechanism allows the lower cutting wheel 127 to rotate without affecting the movement of the double-layer cutting frame 122. The cutting fixing frame 121 is equipped with a second motor 129 that can drive the long toothed shaft 128 to rotate at the other end opposite to the first motor 126. The upper inner cavity of both sets of double-layer cutting frames 122 is rotatably connected to the upper cutting wheel 1210. The upper side of the double-layer cutting frame 122 is equipped with a third motor 1211 that can drive the upper cutting wheel 1210 to rotate. Cutting blades 1212 are installed on the upper cutting wheel 1210 and the lower cutting wheel 127 in an alternating manner. A support plate 1213 is provided between the two sets of lower cutting wheels 127. Springs 1214 are fixed between the two sets of support plates 1213 and the lower cutting wheels 127 on both sides.

[0035] The second motor 129 drives the long-toothed shaft 128 to rotate, which in turn drives the two sets of lower cutting wheels 127 to rotate. The surface of the long-toothed shaft 128 has a protruding elongated structure, and the inner cavity of the lower cutting wheels 127 has a groove structure that matches the protruding elongated structure, allowing the lower cutting wheels 127 to rotate without affecting the lateral movement of the double-layer cutting frame 122. The third motor 1211 drives the upper cutting wheel 1210 to rotate, which, together with the rotation of the lower cutting wheels 127, allows the staggered cutting blades 1212 to cut the film. The support plate 1213 moves laterally with the movement of the lower cutting wheels 127, providing support for the middle of the cut film. The spring 1214 provides cushioning when the two sets of support plates 1213 are pressed together. When the two sets of lower cutting wheels 127 are far apart, the two sets of support plates 1213 are spaced apart, thus providing better support for the film being cut.

[0036] Furthermore, the receiving assembly 11 includes a receiving bracket 111. A trimming assembly clearance groove 112 is provided in the upper middle part of the receiving bracket 111. A first conveying roller 113 and a second conveying roller 114 are respectively arranged on the left and right sides of the trimming assembly clearance groove 112. A feeding conveying roller 115 is hinged to the left end of the first conveying roller 113. A first cylinder 116 is hinged between the feeding conveying roller 115 and the receiving bracket 111. The first cylinder 116 can drive the feeding conveying roller 115 to swing, thereby facilitating the adjustment of the feeding height. After the film enters from the feeding conveying roller 115, it passes through the first conveying roller 113 to the trimming assembly 12 for trimming on both sides. The trimmed film of equal width is then output along the second conveying roller 114.

[0037] Furthermore, the transverse movement mechanism includes an internally threaded block 123 fixed to the bottom of the double-layer cutting frame 122, and bearing seats 124 installed on both the left and right sides of the bottom of the cutting frame 121. A bidirectional threaded rod 125 screwed to the two sets of internally threaded blocks 123 is rotatably connected between the two sets of bearing seats 124. A first motor 126 capable of driving the bidirectional threaded rod 125 is installed at one end of the cutting frame 121.

[0038] One specific application of this embodiment is as follows: This utility model is a film trimming device for solid tire production. When in use:

[0039] Film conveying: The film to be trimmed is first guided by the receiving assembly. The feed conveyor roller, under the action of the first cylinder, can be adjusted in angle to guide the film. The film passes through the first conveyor roller, through the trimming assembly, and then through the second conveyor roller in sequence, achieving smooth conveying.

[0040] Width Adjustment: Start the first motor according to the required film width. The first motor drives the bidirectional threaded rod to rotate within the bearing housing. Since the threads at both ends of the bidirectional threaded rod rotate in opposite directions, the two internal threaded blocks screwed to it (fixed to the bottom of the two sets of double-layer cutting frames respectively) will drive their respective double-layer cutting frames to move synchronously towards or away from each other along the cutting fixing frame, thereby adjusting the distance between the upper and lower cutting wheels on both sides.

[0041] Cutting Drive: Lower Cutting Wheel Drive: The second motor starts, driving the long-toothed shaft to rotate. The long-toothed shaft, through its sleeve engagement with the lower cutting wheels, transmits rotational power to all the lower cutting wheels, causing them to rotate synchronously and in the same direction. The key point is that the long-toothed shaft has a fixed axis of rotation (mounted on the cutting frame), while the double-layer cutting frame (along with the lower cutting wheels on it) slides along the long-toothed shaft. The sleeve design (such as a sliding spline sleeve) allows this axial sliding while transmitting torque.

[0042] Upper trimming wheel drive: A third motor mounted on the upper layer of the double-layer trimming frame directly drives the corresponding upper trimming wheels to rotate. Each upper trimming wheel is driven independently, but moves with the frame when adjusting the width.

[0043] Trimming process: The conveyed film enters the cutting area formed by the upper and lower trimming wheels with adjusted spacing.

[0044] Support: Underneath the film, the support plate, under the preload of the spring, always pushes the film upward, providing flexible support and preventing it from sinking and deforming.

[0045] Shearing: Rotating upper and lower cutting wheels with cutting blades arranged in an alternating pattern (similar to the two blades of scissors). As the film passes through, the upper and lower cutting blades generate shearing force, continuously and smoothly removing the excess material (flash) from both sides of the film.

[0046] Synchronization Guarantee: All lower cutting wheels are forced to rotate synchronously via long-toothed shafts, ensuring that the cutting speed on both sides is absolutely consistent; the lateral movement mechanism ensures that the two frames move symmetrically and synchronously. These two points together ensure that the cuts on both sides remain parallel and equidistant, regardless of how the width is adjusted.

[0047] Material output: The cut film, supported by the support plate, passes through the cutting area and is then conveyed to the downstream process by the second conveyor roller.

[0048] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A film trimming device for solid tire production, comprising a receiving assembly (11) and a trimming assembly (12), characterized in that: The edge-cutting assembly (12) includes an edge-cutting fixing frame (121) fixedly connected to the receiving assembly (11). Two sets of symmetrically arranged double-layer edge-cutting frames (122) are slidably connected to the edge-cutting fixing frame (121). A transverse movement mechanism that can drive the two sets of double-layer edge-cutting frames (122) to move towards or away from each other is installed at the bottom of the edge-cutting fixing frame (121). The lower inner cavity of each set of double-layer edge-cutting frames (122) is rotatably connected to a lower edge-cutting wheel (127). A long-toothed rotating shaft (128) that passes through the two sets of lower edge-cutting wheels (127) is rotatably connected to the edge-cutting fixing frame (121). The long-toothed rotating shaft (128) is sleeved with the lower edge-cutting wheel (127), so that the lower edge-cutting wheel (127) can rotate without affecting the double-layer edge-cutting frame (122). 22) Moving, the other end of the edge-cutting fixing frame (121) away from the first motor (126) is equipped with a second motor (129) that can drive the long tooth shaft (128) to rotate. The upper inner cavity of the two sets of double-layer edge-cutting frames (122) is rotatably connected with an upper edge-cutting wheel (1210). The upper side of the double-layer edge-cutting frame (122) is equipped with a third motor (1211) that can drive the upper edge-cutting wheel (1210) to rotate. The upper edge-cutting wheel (1210) and the lower edge-cutting wheel (127) are equipped with staggered edge-cutting blades (1212). A support plate (1213) is provided between the two sets of lower edge-cutting wheels (127). The two sets of support plates (1213) are respectively fixed with springs (1214) between the lower edge-cutting wheels (127) on both sides.

2. The film trimming device for solid tire production according to claim 1, characterized in that: The receiving assembly (11) includes a receiving bracket (111). The upper middle part of the receiving bracket (111) is provided with a cutting component clearance groove (112). A first conveying roller (113) and a second conveying roller (114) are respectively provided on the left and right sides of the cutting component clearance groove (112). A feeding conveying roller (115) is hinged to the left end of the first conveying roller (113). A first cylinder (116) is hinged between the feeding conveying roller (115) and the receiving bracket (111).

3. The film trimming device for solid tire production according to claim 1, characterized in that: The transverse mechanism includes an internally threaded block (123) fixed to the bottom of the double-layer cutting frame (122). Bearing seats (124) are installed on the left and right sides of the bottom of the cutting frame (121). A bidirectional threaded rod (125) screwed to the two sets of internally threaded blocks (123) is rotatably connected between the two sets of bearing seats (124). A first motor (126) capable of driving the bidirectional threaded rod (125) is installed at one end of the cutting frame (121).

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